WO2018168276A1

WO2018168276A1 - Device temperature adjusting apparatus

Info

Publication number: WO2018168276A1
Application number: PCT/JP2018/004464
Authority: WO
Inventors: 竹内　雅之; 康光大見; 義則　毅; 功嗣三浦
Original assignee: 株式会社デンソー
Priority date: 2017-03-16
Filing date: 2018-02-08
Publication date: 2018-09-20

Abstract

In the present invention, a device heat exchanger (10) is configured such that heat can be exchanged between a target device and a working fluid. An upper connection part (15) is provided in an upper part of the device heat exchanger (10) in the direction of gravity, and a lower connection part (16) is provided in a lower part of the device heat exchanger (10) in the direction of gravity. A condenser (30) is disposed above the device heat exchanger (10) in the direction of gravity. A gas phase passage (50) allows the condenser (30) and the upper connection part (15) to communicate with each other, and a liquid phase passage (40) allows the condenser (30) and the lower connection part (16) to communicate with each other. A fluid passage (60) allows the upper connection part (15) and the lower connection part (16) of the device heat exchanger (10) to communicate with each other without the condenser (30) being included along the path thereof. A heating unit (61) can heat a liquid-phase working fluid that flows through the fluid passage (60). A control device (5) makes the heating unit (61) operate when a target device is to be heated, and halts operation of the heating unit (61) when the target device is to be cooled.

Description

Equipment temperature controller

Cross-reference to related applications

This application includes Japanese Patent Application No. 2017-51489 filed on March 16, 2017, Japanese Patent Application No. 2017-122281 filed on June 22, 2017, and July 12, 2017. Based on Japanese Patent Application No. 2017-136552 filed in Japan, and Japanese Patent Application No. 2017-235120 filed on Dec. 7, 2017, the contents of which are incorporated herein by reference.

This disclosure relates to a device temperature control device that adjusts the temperature of a target device.

Conventionally, a device temperature control device that adjusts the temperature of a target device by a loop thermosyphon method is known.

The apparatus temperature control apparatus described in Patent Document 1 includes an apparatus heat exchanger that exchanges heat between an assembled battery as a target apparatus and a working fluid, and a condenser that is disposed above the apparatus heat exchanger in the direction of gravity. The gas phase passage and the liquid phase passage connecting the heat exchanger for equipment and the condenser are provided. Moreover, this apparatus temperature control apparatus is equipped with the heating part which can heat a working fluid inside the heat exchanger for apparatuses.

In the apparatus temperature control apparatus described in Patent Document 1, when the assembled battery is cooled, the working fluid inside the apparatus heat exchanger absorbs heat from the assembled battery and evaporates, and flows into the condenser through the gas phase passage. The liquid-phase working fluid condensed by the condenser flows into the equipment heat exchanger through the liquid-phase passage. Thus, the device temperature control device is configured to cool the assembled battery by circulating the working fluid.

Moreover, the apparatus temperature control apparatus of patent document 1 heats a working fluid with the heating part provided inside the heat exchanger for apparatuses at the time of warming up of an assembled battery. The heated working fluid condenses by vaporizing inside the equipment heat exchanger and then radiating heat to the assembled battery. Thus, the device temperature control device is configured to heat the assembled battery by the phase change of the working fluid inside the device heat exchanger.

JP 2015-41418 A

However, the apparatus temperature control apparatus described in Patent Document 1 has a configuration in which a heating unit is provided inside the apparatus heat exchanger. Therefore, when the assembled battery is warmed up, the working fluid in the vicinity of the heating unit is locally vaporized inside the equipment heat exchanger, and the working fluid in a place away from the heating unit is not heated. Therefore, in this equipment temperature control device, the temperature variation of the working fluid becomes large inside the equipment heat exchanger, and the assembled battery cannot be warmed up uniformly. As a result, some battery cells constituting the assembled battery are not sufficiently warmed up, the input / output characteristics of the assembled battery are lowered, and the assembled battery may be deteriorated or damaged.

Moreover, the apparatus temperature control apparatus described in Patent Document 1 evaporates and condenses the working fluid only inside the apparatus heat exchanger when the assembled battery is warmed up. That is, inside the equipment heat exchanger, the working fluid heated and vaporized by the heating unit flows to the upper side in the gravity direction, and the working fluid radiated and condensed to the assembled battery flows to the lower side in the gravity direction. Therefore, since the liquid-phase working fluid and the gas-phase working fluid flow opposite to each other, there is a concern that the circulation of the working fluid is hindered inside the equipment heat exchanger and the warm-up efficiency of the assembled battery is deteriorated. The Note that the above-described problem is not limited to the case where the target device is an assembled battery, but may also occur in other devices as well.

This disclosure aims to provide a device temperature control device capable of adjusting the temperature of a target device with high efficiency.

According to one aspect of the present disclosure, there is provided a device temperature control device that adjusts the temperature of a target device by a phase change between a liquid phase and a gas phase of a working fluid,
A heat exchanger for equipment configured to allow heat exchange between the target device and the working fluid so that the working fluid evaporates when the target device is cooled and the working fluid is condensed when the target device is warmed up;
An upper connection provided in the upper part of the gravitational direction of the heat exchanger for equipment, and through which the working fluid flows in or out;
A lower connection part that is provided in a lower part of the heat exchanger for equipment than the upper connection part in the direction of gravity, and into which working fluid flows in or out;
A condenser that is disposed above the heat exchanger for equipment in the direction of gravity and that condenses the working fluid by dissipating the working fluid evaporated in the equipment heat exchanger;
A gas phase passage that communicates the inlet through which the gas phase working fluid flows into the condenser and the upper connection portion of the heat exchanger for equipment;
A liquid-phase passage that communicates the outlet from which the liquid-phase working fluid flows out of the condenser and the lower connection portion of the equipment heat exchanger;
A fluid passage that communicates the upper connection portion and the lower connection portion of the equipment heat exchanger without including a condenser on the path;
A heating unit capable of heating the liquid-phase working fluid flowing through the fluid passage;
A control device that operates the heating unit when warming up the target device and stops the operation of the heating unit when cooling the target device.

According to this, when the operation of the heating unit is stopped, the working fluid condensed by the condenser flows into the heat exchanger for equipment from the lower connection portion through the liquid phase passage by its own weight. The working fluid absorbs heat from the target device inside the device heat exchanger and evaporates. The working fluid that has become a gas phase flows from the upper connection portion through the gas phase passage to the condenser. The working fluid is condensed again in the condenser, and flows into the heat exchanger for equipment through the liquid phase passage. By such circulation of the working fluid, the device temperature adjustment device can cool the target device.

On the other hand, when the heating section is activated, the working fluid in the fluid passage evaporates and flows into the equipment heat exchanger from the upper connection section. Inside the equipment heat exchanger, the gas phase working fluid dissipates heat to the target equipment and condenses. The working fluid in the liquid phase flows from the lower connection portion to the fluid passage. The working fluid is heated by the heating section in the fluid passage, evaporates again, and flows into the equipment heat exchanger. By such a circulation of the working fluid, the device temperature control device can warm up the target device.

This equipment temperature control device is configured to heat the working fluid in the fluid passage outside the equipment heat exchanger by the heating unit when the target equipment is warmed up. For this reason, the working fluid vapor evaporated in the fluid passage is supplied to the equipment heat exchanger, so that the variation in the steam temperature of the working fluid is suppressed inside the equipment heat exchanger. Therefore, this device temperature control device can warm up the target device uniformly. As a result, when the target device is an assembled battery, it is possible to prevent a decrease in input / output characteristics of the assembled battery, and to suppress deterioration and breakage of the assembled battery.

Also, in this equipment temperature control device, when the target equipment is cooled, the working fluid circulates in the order of condenser → liquid phase passage → lower connection portion → device heat exchanger → upper connection portion → gas phase passage → condenser. On the other hand, when the target device is warmed up, the working fluid circulates in the order of fluid passage → upper connection portion → device heat exchanger → lower connection portion → fluid passage. That is, in this device temperature control device, the flow path for the working fluid is formed in a loop shape both when the target device is cooled and when it is warmed up. Therefore, it is possible to prevent the liquid-phase working fluid and the gas-phase working fluid from flowing in the same flow path. Therefore, this apparatus temperature control apparatus can warm up and cool the target apparatus with high efficiency by smoothly circulating the working fluid.

Furthermore, this device temperature control device secures a space for providing a heating portion in the height direction of the fluid passage connecting the upper connection portion and the lower connection portion of the heat exchanger for the device. The need to provide a heating unit or the like below the exchanger is reduced. Therefore, this apparatus temperature control apparatus can improve the mounting property to a vehicle.

Further, according to another aspect, the device temperature adjustment device for adjusting the temperature of the target device by a phase change between the liquid phase and the gas phase of the working fluid,
A heat exchanger for equipment configured to allow heat exchange between the target equipment and the working fluid so that the working fluid is condensed when the target equipment is warmed up;
An upper connection provided in the upper part of the gravitational direction of the heat exchanger for equipment, and through which the working fluid flows in or out;
A lower connection part that is provided in a lower part of the heat exchanger for equipment than the upper connection part in the direction of gravity, and into which working fluid flows in or out;
A fluid passage communicating the upper connection portion and the lower connection portion of the equipment heat exchanger;
A heating unit capable of heating the liquid-phase working fluid flowing through the fluid passage;
And a control device that operates the heating unit when warming up the target device.

According to this, this apparatus temperature control apparatus is the structure which heats the working fluid of the fluid path in the outer side of the apparatus heat exchanger with a heating part at the time of warming up of object apparatus. For this reason, the working fluid vapor evaporated in the fluid passage is supplied to the equipment heat exchanger, so that the variation in the steam temperature of the working fluid is suppressed inside the equipment heat exchanger. Therefore, this device temperature control device can warm up the target device uniformly. As a result, when the target device is an assembled battery, it is possible to prevent a decrease in input / output characteristics of the assembled battery, and to suppress deterioration and breakage of the assembled battery.

Also, in this equipment temperature control device, when the target equipment is warmed up, the working fluid circulates in the order of the fluid passage → the upper connection portion → the equipment heat exchanger → the lower connection portion → the fluid passage. That is, in this device temperature control apparatus, the flow path through which the working fluid flows is formed in a loop when the target device is warmed up. Therefore, it is possible to prevent the liquid-phase working fluid and the gas-phase working fluid from flowing in the same flow path. Therefore, this device temperature control device can warm up the target device with high efficiency by smoothly circulating the working fluid.

Further, according to another aspect, the device temperature adjustment device for adjusting the temperature of the target device by a phase change between the liquid phase and the gas phase of the working fluid,
A heat exchanger for equipment configured to allow heat exchange between the target device and the working fluid so that the working fluid evaporates when the target device is cooled and the working fluid is condensed when the target device is warmed up;
An upper connection provided in the upper part of the gravitational direction of the heat exchanger for equipment, and through which the working fluid flows in or out;
A lower connection part that is provided in a lower part of the heat exchanger for equipment than the upper connection part in the direction of gravity, and into which working fluid flows in or out;
A fluid passage communicating the upper connection portion and the lower connection portion of the equipment heat exchanger;
Heat that is provided in the fluid passage at a height position across the level of the working fluid level inside the equipment heat exchanger, and that can selectively supply cold or hot heat to the working fluid that flows through the fluid passage. A supply member.

According to this, the device temperature control device can perform both warm-up and cooling of the target device by selectively supplying cold heat or heat to the working fluid flowing through the fluid passage by the heat supply member. It is. Therefore, this equipment temperature control device can achieve downsizing, light weight, and low cost by reducing the number of parts and simplifying the configuration of piping and the like.

Specifically, in the device temperature control device, when cooling heat is supplied from the heat supply member to the working fluid flowing through the fluid passage when the target device is cooled, the working fluid in the fluid passage is condensed. Then, due to the head difference between the liquid-phase working fluid condensed in the fluid passage and the liquid-phase working fluid in the equipment heat exchanger, the liquid-phase working fluid in the fluid passage passes from the lower connection portion to the equipment heat exchanger. Flow into. The working fluid in the equipment heat exchanger absorbs heat from the target equipment and evaporates, and the working fluid in the gas phase flows from the upper connection portion to the fluid passage. The working fluid in the fluid passage is cooled by the heat supply member, condensed again, and flows into the equipment heat exchanger from the lower connection portion. By such circulation of the working fluid, the device temperature adjustment device can cool the target device.

On the other hand, when the heat is supplied from the heat supply member to the working fluid flowing through the fluid passage when the target device is warmed up, the working fluid in the fluid passage evaporates and flows into the equipment heat exchanger from the upper connection portion. Inside the equipment heat exchanger, the gas phase working fluid dissipates heat to the target equipment and condenses. Due to the head difference between the liquid-phase working fluid condensed in the equipment heat exchanger and the liquid-phase working fluid in the fluid passage, the liquid-phase working fluid in the equipment heat exchanger is transferred from the lower connection portion to the fluid passage. Flowing. The working fluid is heated by the heat supply member in the fluid passage, evaporates again, and flows into the equipment heat exchanger. By such a circulation of the working fluid, the device temperature control device can warm up the target device.

This equipment temperature control device is configured to heat the working fluid in the fluid passage outside the equipment heat exchanger by the heat supply member when the target equipment is warmed up. For this reason, the working fluid vapor evaporated in the fluid passage is supplied to the equipment heat exchanger, so that the variation in the steam temperature of the working fluid is suppressed inside the equipment heat exchanger. Therefore, this device temperature control device can warm up the target device uniformly. As a result, when the target device is an assembled battery, it is possible to prevent a decrease in input / output characteristics of the assembled battery, and to suppress deterioration and breakage of the assembled battery.

Also, in this equipment temperature control device, when the target equipment is cooled, the working fluid circulates in the order of fluid passage → lower connection portion → device heat exchanger → upper connection portion → fluid passage. On the other hand, when the target device is warmed up, the working fluid circulates in the order of fluid passage → upper connection portion → device heat exchanger → lower connection portion → fluid passage. That is, in this device temperature control device, the flow path for the working fluid is formed in a loop shape both when the target device is cooled and when it is warmed up. Therefore, it is possible to prevent the liquid-phase working fluid and the gas-phase working fluid from flowing in the same flow path. Therefore, this apparatus temperature control apparatus can warm up and cool the target apparatus with high efficiency by smoothly circulating the working fluid.

In addition, this device temperature control device secures a space for providing a heat supply member in the height direction of the fluid passage connecting the upper connection portion and the lower connection portion of the equipment heat exchanger. The need to provide piping and components below the heat exchanger is reduced. Therefore, this apparatus temperature control apparatus can improve the mounting property to a vehicle.

It is a block diagram of the apparatus temperature control apparatus of 1st Embodiment. It is a perspective view of the apparatus heat exchanger with which an apparatus temperature control apparatus is provided. It is sectional drawing of the III-III line | wire of FIG. It is sectional drawing of the VI-VI line of FIG. It is a graph for demonstrating the output characteristic of an assembled battery. It is a graph for demonstrating the input characteristic of an assembled battery. It is explanatory drawing explaining the flow of the working fluid at the time of cooling of object apparatus. It is explanatory drawing explaining the flow of the working fluid at the time of warming up of an object apparatus. It is a block diagram of the apparatus temperature control apparatus of 2nd Embodiment. It is a block diagram of the apparatus temperature control apparatus of 3rd Embodiment. It is a block diagram of the apparatus temperature control apparatus of 4th Embodiment. It is a block diagram of the apparatus temperature control apparatus of 5th Embodiment. It is a block diagram of the apparatus temperature control apparatus of 5th Embodiment. It is a block diagram of the apparatus temperature control apparatus of 6th Embodiment. It is a block diagram of the apparatus temperature control apparatus of 7th Embodiment. It is a block diagram of the apparatus temperature control apparatus of 8th Embodiment. It is a block diagram of the apparatus temperature control apparatus of 9th Embodiment. It is a block diagram of the apparatus temperature control apparatus of 10th Embodiment. It is a block diagram of the apparatus temperature control apparatus of 11th Embodiment. It is a block diagram of the apparatus temperature control apparatus of 12th Embodiment. It is a block diagram of the apparatus temperature control apparatus of 13th Embodiment. It is a block diagram of the apparatus temperature control apparatus of 14th Embodiment. It is sectional drawing of the heat exchanger for apparatuses with which the apparatus temperature control apparatus of 15th Embodiment is provided. It is sectional drawing of the heat exchanger for apparatuses with which the apparatus temperature control apparatus of 16th Embodiment is provided. It is sectional drawing of the heat exchanger for apparatuses with which the apparatus temperature control apparatus of 17th Embodiment is provided. It is sectional drawing of the heat exchanger for apparatuses with which the apparatus temperature control apparatus of 18th Embodiment is provided. It is a block diagram of the apparatus temperature control apparatus of 19th Embodiment. It is a partial cross section figure of the apparatus temperature control apparatus of 19th Embodiment. It is a block diagram of the apparatus temperature control apparatus of 20th Embodiment. It is a block diagram of the apparatus temperature control apparatus of 20th Embodiment. It is a partial cross section figure of the apparatus temperature control apparatus of 21st Embodiment. It is a block diagram of the apparatus temperature control apparatus of 22nd Embodiment. It is a block diagram of the apparatus temperature control apparatus of 23rd Embodiment. It is explanatory drawing explaining the flow of the working fluid at the time of warming up of an object apparatus. It is sectional drawing of the heat exchanger for apparatuses at the time of the drive stop of a heating part. It is sectional drawing of the heat exchanger for apparatuses at the time of the drive of a heating part. It is sectional drawing of the heat exchanger for apparatuses immediately after stopping the drive of a heating part. It is a flowchart of the warm-up control process in 23rd Embodiment. It is a graph which shows the change of the temperature distribution of the object apparatus at the time of warming-up of 23rd Embodiment. It is a flowchart of the warm-up control process in 24th Embodiment. It is sectional drawing of the heat exchanger for apparatuses at the time of the drive stop of a heating part. It is sectional drawing of the heat exchanger for apparatuses at the time of the drive of a heating part. It is sectional drawing of the heat exchanger for apparatuses when the heating capability of a heating part is reduced. It is a block diagram of the apparatus temperature control apparatus of 25th Embodiment. It is a block diagram of the apparatus temperature control apparatus of 26th Embodiment. It is a block diagram of the apparatus temperature control apparatus of 27th Embodiment. It is a block diagram of the apparatus temperature control apparatus of 27th Embodiment. It is a block diagram of the apparatus temperature control apparatus of 28th Embodiment. It is a block diagram of the apparatus temperature control apparatus of 28th Embodiment. It is a block diagram of the apparatus temperature control apparatus of 29th Embodiment. It is a block diagram of the apparatus temperature control apparatus of 29th Embodiment. It is a block diagram of the apparatus temperature control apparatus of 30th Embodiment. It is a block diagram of the apparatus temperature control apparatus of 30th Embodiment. It is a block diagram of the apparatus temperature control apparatus of 31st Embodiment. It is a block diagram of the apparatus temperature control apparatus of 31st Embodiment. It is a block diagram of the apparatus temperature control apparatus of 32nd Embodiment. It is a block diagram of the apparatus temperature control apparatus of 32nd Embodiment. It is a block diagram of the apparatus temperature control apparatus of 33rd Embodiment. It is a block diagram of the apparatus temperature control apparatus of 34th Embodiment.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the following embodiments, parts that are the same or equivalent to each other are given the same reference numerals, and descriptions thereof are omitted.

(First embodiment)
The apparatus temperature control device of this embodiment is mounted on an electric vehicle (hereinafter simply referred to as “vehicle”) such as an electric vehicle or a hybrid vehicle. As shown in FIG. 1, the device temperature control device 1 functions as a cooling device that cools a secondary battery 2 (hereinafter referred to as “assembled battery 2”) mounted on a vehicle. Moreover, the apparatus temperature control apparatus 1 functions also as a warming-up apparatus which warms up the assembled battery 2. FIG.

First, a description will be given of the assembled battery 2 as a target device for which the device temperature control device 1 performs temperature adjustment.

In a vehicle equipped with the device temperature control device 1, electric power stored in a power storage device (in other words, a battery pack) including the assembled battery 2 as a main component is supplied to a vehicle driving motor via an inverter or the like. The assembled battery 2 self-heats when power is supplied while the vehicle is running. When the assembled battery 2 becomes high temperature, not only cannot a sufficient function be exhibited, but also deterioration is promoted. Therefore, it is necessary to limit output and input so that self-heating is reduced. For this reason, in order to ensure the output and input of the assembled battery 2, a cooling device for maintaining the assembled battery 2 below a predetermined temperature is required.

In addition, in high seasons such as summer, the battery temperature rises not only when the vehicle is running but also when parked. In addition, the assembled battery 2 is often arranged under the floor of a vehicle, under a trunk room, etc., and although the amount of heat per unit time given to the assembled battery 2 is small, the battery temperature gradually rises when left for a long time. If the assembled battery 2 is left in a high temperature state, the life of the assembled battery 2 is shortened. Therefore, it is desired to maintain the temperature of the assembled battery 2 at a predetermined temperature or less even during parking of the vehicle.

Furthermore, the assembled battery 2 is composed of a plurality of battery cells 21. In the assembled battery 2, if the temperature of each battery cell 21 varies, the deterioration of the battery cell 21 is biased, and the power storage performance decreases. This is because the input / output characteristics of the assembled battery 2 are determined in accordance with the characteristics of the battery cell 21 that is most deteriorated because the assembled battery 2 includes the series connection body of the battery cells 21. Therefore, in order to make the assembled battery 2 exhibit desired performance over a long period of time, it is important to equalize the temperature so as to reduce the temperature variation among the plurality of battery cells 21.

In general, as other cooling devices for cooling the assembled battery 2, an air-cooling cooling means using a blower and a cooling means using the cold heat of a vapor compression refrigeration cycle are generally used. However, since the air-cooled cooling means using the blower only blows air in the passenger compartment, the cooling capacity is low. Moreover, since the air blower cools the assembled battery 2 with the sensible heat of air, the temperature difference between the upstream and downstream of the air flow becomes large, and the temperature variation between the plurality of battery cells 21 cannot be sufficiently suppressed. . Moreover, although the cooling means using the cold heat of the refrigeration cycle has a high cooling capacity, it is necessary to drive a compressor or the like that consumes a large amount of power while the vehicle is parked. This is undesirable because it leads to an increase in power consumption and an increase in noise.

Therefore, the device temperature control apparatus 1 of the present embodiment employs a thermosiphon system that adjusts the temperature of the assembled battery 2 by natural circulation of the working fluid without forcibly circulating the working fluid by a compressor.

Next, the configuration of the device temperature control device 1 will be described.

As shown in FIG. 1, the device temperature control device 1 includes a fluid circulation circuit 4 through which a working fluid circulates and a control device 5 that controls the operation of the fluid circulation circuit 4.

The fluid circulation circuit 4 is a heat pipe that performs heat transfer by evaporation and condensation of the working fluid. Specifically, the flow path through which the gas-phase working fluid flows and the flow path through which the liquid-phase working fluid flows are separated. It is a loop-type thermosiphon. The fluid circulation circuit 4 is configured as a closed fluid circuit in which the equipment heat exchanger 10, the condenser 30, the liquid phase passage 40, the gas phase passage 50, the fluid passage 60, and the like are connected to each other. Further, the fluid passage 60 is provided with a heating unit 61 for heating the working fluid.

The fluid circulation circuit 4 is filled with a predetermined amount of working fluid in a state where the inside is evacuated. As the working fluid, for example, a fluorocarbon refrigerant such as HFO-1234yf or HFC-134a used in a vapor compression refrigeration cycle is employed. An arrow DG in FIG. 1 indicates the direction of gravity in a state where the fluid circulation circuit 4 is mounted on the vehicle.

The filling amount of the working fluid in the fluid circulation circuit 4 is adjusted so that the liquid level is formed in the vicinity of the center in the height direction of the equipment heat exchanger 10 during warm-up described later. In FIG. 1, an example of the height of the liquid level during warm-up is indicated by a one-dot chain line FL.

As shown in FIGS. 2 to 4, the equipment heat exchanger 10 has a cylindrical upper tank 11, a cylindrical lower tank 12, and a flow path that connects the upper tank 11 and the lower tank 12. It is composed of a plurality of tubes 131. Instead of the plurality of tubes 131, the upper tank 11 and the lower tank 12 may be connected by a plurality of flow paths formed inside the plate-like member. Each component of the equipment heat exchanger 10 is formed of a metal having high thermal conductivity such as aluminum or copper. In addition, each structural member of the heat exchanger 10 for apparatuses can also be comprised with materials with high heat conductivity other than a metal. The part comprised by the some tube 131 or the plate-shaped member among the heat exchangers 10 for apparatuses shall be called the heat exchange part 13. FIG.

The upper tank 11 is provided at a position on the upper side in the gravity direction of the equipment heat exchanger 10. The lower tank 12 is provided in a position on the lower side in the gravity direction of the equipment heat exchanger 10.

The assembled battery 2 is installed outside the heat exchanging unit 13 via an electrically insulating heat conductive sheet 14. The heat conductive sheet 14 ensures insulation between the heat exchanging unit 13 and the assembled battery 2 and reduces the thermal resistance between the heat exchanging unit 13 and the assembled battery 2. In the present embodiment, in the assembled battery 2, the surface 23 opposite to the surface 25 on which the terminals 22 are provided is installed in the heat exchange unit 13 via the heat conductive sheet 14. The plurality of battery cells 21 constituting the assembled battery 2 are arranged in a direction crossing the gravitational direction. Thus, the plurality of battery cells 21 are uniformly cooled and heated by heat exchange with the working fluid inside the equipment heat exchanger 10.

As will be described in the fifteenth to eighteenth embodiments to be described later, the method for installing the assembled battery 2 is not limited to that shown in FIGS. 1 to 3, and the other surface of the assembled battery 2 is the heat conductive sheet 14. It may be installed in the heat exchange part 13 via. Note that the number, shape, and the like of each battery cell 21 constituting the assembled battery 2 are not limited to those shown in FIGS. 1 to 3, and any one can be adopted.

The equipment heat exchanger 10 is provided with an upper connection portion 15 and a lower connection portion 16. Each of the upper connection portion 15 and the lower connection portion 16 is a pipe connection portion for allowing the working fluid to flow into the equipment heat exchanger 10 or for causing the working fluid to flow out from the equipment heat exchanger 10.

The upper connection part 15 is provided in the site | part of the gravity direction upper side among the heat exchangers 10 for apparatuses. In the present embodiment, the upper connection portion 15 is provided on both sides of the upper tank 11. In the following description, the upper connection portion 15 provided at one end of the upper tank 11 is referred to as a first upper connection portion 151, and the upper connection portion 15 provided at the other end of the upper tank 11 is referred to as a second upper connection portion 152. Call.

On the other hand, the lower connection part 16 is provided in the site | part of the gravity direction lower side among the heat exchangers 10 for apparatuses. In the present embodiment, the lower connection portion 16 is provided on both sides of the lower tank 12. In the following description, the lower connection portion 16 provided at one end of the lower tank 12 is referred to as a first lower connection portion 161, and the lower connection portion 16 provided at the other end of the lower tank 12 is referred to as a second lower connection portion 162. Call.

The gas phase passage 50 is connected to the first upper connection portion 151. The gas phase passage 50 is a passage that communicates the inlet 31 of the condenser 30 and the first upper connection portion 151 of the equipment heat exchanger 10. On the other hand, the liquid phase passage 40 is connected to the first lower connection portion 161. The liquid phase passage 40 is a passage that communicates the outlet 32 of the condenser 30 with the first upper connection portion 151 of the equipment heat exchanger 10. The gas phase passage 50 and the liquid phase passage 40 are names for convenience, and do not mean a passage through which only a gas phase or liquid phase working fluid flows. That is, both the gas phase and the liquid phase working fluid may flow in both the gas phase passage 50 and the liquid phase passage 40. In addition, the shapes of the gas phase passage 50 and the liquid phase passage 40 can be appropriately changed in consideration of the mounting property on the vehicle.

The condenser 30 is disposed above the apparatus heat exchanger 10 in the gravity direction. An inlet 31 is provided in the upper part of the condenser 30, and an outlet 32 is provided in the lower part of the condenser 30. The condenser 30 is a heat exchanger for exchanging heat between a gas-phase working fluid that has flowed into the condenser 30 from the inlet 31 through the gas-phase passage 50 and a predetermined heat-receiving fluid. The condenser 30 of this embodiment is an air-cooled heat exchanger that exchanges heat between the air blown from the blower fan 33 and the gas-phase working fluid. That is, in the present embodiment, the predetermined heat receiving fluid is air. As will be described in the embodiments described later, the heat receiving fluid is not limited to air, and various fluids such as a refrigerant circulating in the refrigeration cycle or a cooling water circulating in the cooling water circuit may be adopted. Is possible.

The blower fan 33 can flow air outside the passenger compartment or air inside the passenger compartment toward the condenser 30. The air blowing capacity of the blower fan 33 is controlled based on a control signal from the control device 5. The gas phase working fluid is condensed by releasing heat to the air passing through the condenser 30. The working fluid in the liquid phase flows down from the outlet 32 through the liquid phase passage 40 by its own weight, and flows into the equipment heat exchanger 10.

In the middle of the liquid phase passage 40, a fluid control valve 70 capable of blocking the flow of the working fluid flowing through the liquid phase passage 40 is provided. The fluid control valve 70 of the present embodiment is an electromagnetic valve, and the flow path cross-sectional area is adjusted by a control signal transmitted from the control device 5. When the fluid control valve 70 cuts off the flow of the working fluid flowing through the liquid phase passage 40, the liquid phase working fluid is accumulated from the liquid phase passage 40 above the fluid control valve 70 in the gravity direction to the condenser 30, and thereafter. The heat radiation of the working fluid by the condenser 30 is suppressed or substantially stopped. Therefore, the fluid control valve 70 functions as a heat dissipation suppression unit that can suppress the heat dissipation of the working fluid by the condenser 30.

The fluid passage 60 is connected to the second upper connection portion 152 and the second lower connection portion 162. Since the fluid passage 60 is a passage connecting the upper connection portion 15 and the lower connection portion 16 of the equipment heat exchanger 10 without including the condenser 30 on the route, the fluid passage 60 is also referred to as a bypass passage. As will be described in a twentieth embodiment to be described later, the fluid passage 60 is not limited to connecting the second upper connection portion 152 and the second lower connection portion 162, and the middle of the gas phase passage 50 and the liquid phase passage. The middle of 40 may be connected.

The fluid passage 60 is provided with a heating unit 61 capable of heating the liquid-phase working fluid flowing through the fluid passage 60. The heating unit 61 of the present embodiment is configured by an electric heater that generates heat when energized. On / off of energization to the heating unit 61 is controlled according to a control signal from the control device 5. The heating unit 61 is provided at a portion where the fluid passage 60 extends in the vertical direction. As a result, when the heating unit 61 heats the working fluid in the fluid passage 60, the working fluid that has become vapor flows through the fluid passage 60 upward in the direction of gravity and flows into the equipment heat exchanger 10 from the second upper connection portion 152. To do.

The control device 5 includes a microcomputer including a processor and a memory (for example, ROM, RAM) and its peripheral circuits. Note that the memory of the control device 5 is composed of a non-transitional tangible storage medium. The control device 5 controls the operation of each device such as the heating unit 61, the blower fan 33, and the fluid control valve 70 included in the fluid circulation circuit 4 described above.

Subsequently, the operation of the device temperature control device 1 will be described.

As shown in FIG. 5 and FIG. 6, when the assembled battery 2 becomes cooler than a predetermined optimum temperature range, the internal resistance increases, and both the output characteristics and the input characteristics deteriorate. Further, when the assembled battery 2 becomes hotter than a predetermined optimum temperature range, both the output characteristics and the input characteristics are degraded, and there is a possibility that the battery pack 2 may be deteriorated or broken. Therefore, in order for the assembled battery 2 to exhibit the desired performance, the assembled battery 2 is warmed up when the assembled battery 2 becomes lower in temperature than the predetermined optimum temperature range, and the assembled battery 2 exceeds the predetermined optimum temperature range. However, it is necessary to cool the assembled battery 2 when the temperature becomes high.

<Operation during cooling>
In FIG. 7, the flow of the working fluid when the device temperature control device 1 cools the assembled battery 2 is indicated by solid and broken arrows. At the time of cooling the assembled battery 2, the control device 5 turns off the power supply to the heating unit 61 and stops the operation of the heating unit 61. Further, the control device 5 opens the fluid control valve 70 so that the working fluid flows through the liquid phase passage 40. Furthermore, the control device 5 turns on the power of the blower fan 33 that blows air to the condenser 30 when the vehicle is stopped. However, when the vehicle is traveling, the control device 5 turns off the power of the blower fan 33 because the traveling wind flows into the condenser 30.

Thereby, the liquid-phase working fluid condensed in the condenser 30 flows through the liquid-phase passage 40 due to its own weight, and flows into the lower tank 12 of the equipment heat exchanger 10 from the first lower connection portion 161. The working fluid that has flowed into the lower tank 12 is divided into a plurality of tubes 131 that constitute the heat exchanging unit 13, and is evaporated by exchanging heat with the battery cells 21 that constitute the assembled battery 2. In this process, the battery cell 21 is cooled by the latent heat of vaporization of the working fluid. Thereafter, the working fluid that has become a gas phase joins in the upper tank 11 of the equipment heat exchanger 10, and flows from the first upper connection portion 151 through the gas phase passage 50 to the condenser 30.

As described above, the flow of the working fluid during cooling of the assembled battery 2 is in the order of the condenser 30 → the liquid phase passage 40 → the lower tank 12 → the heat exchange unit 13 → the upper tank 11 → the gas phase passage 50 → the condenser 30. Become. That is, a loop-shaped flow path that passes through the equipment heat exchanger 10 and the condenser 30 is formed.

In addition, when the assembled battery 2 is cooled, a part of the working fluid is also supplied to the fluid passage 60, but since the energization to the heating unit 61 is turned off, the working fluid is not vaporized in the fluid passage 60. There is almost no flow of working fluid in the fluid passage 60.

<Operation during warm-up>
In FIG. 8, the flow of the working fluid when the device temperature control device 1 warms up the assembled battery 2 is indicated by solid and broken arrows. When the assembled battery 2 is warmed up, the control device 5 turns on the energization of the heating unit 61 and operates the heating unit 61. In addition, the control device 5 closes the fluid control valve 70 and blocks the flow of the working fluid in the liquid phase passage 40.

When the heating unit 61 is operated, the working fluid in the fluid passage 60 is vaporized, and the working fluid that has become a vapor flows through the fluid passage 60 upward in the gravitational direction, and from the second upper connection portion 152, the equipment heat exchanger 10. Into the upper tank 11. The gas-phase working fluid is condensed by being divided into a plurality of tubes 131 in contact with the low-temperature battery cells 21 and exchanging heat with each of the low-temperature battery cells 21 due to the property of flowing in a lower temperature. In this process, the battery cell 21 is warmed up (ie, heated) by the latent heat of condensation of the working fluid. Thereafter, the working fluid in a liquid phase is merged in the lower tank 12 of the equipment heat exchanger 10 and flows from the second lower connecting portion 162 to the fluid passage 60. As described above, the flow of the working fluid when the assembled battery 2 is warmed up is in the order of the fluid passage 60 → the upper tank 11 → the heat exchange unit 13 → the lower tank 12 → the fluid passage 60. That is, a loop-shaped flow path that passes through the equipment heat exchanger 10 and the fluid passage 60 is formed without passing through the condenser 30.

When the assembled battery 2 is warmed up, a part of the gas-phase working fluid is also supplied to the gas-phase passage 50 and the condenser 30, but since the fluid control valve 70 is closed, the fluid control valve 70 A liquid-phase working fluid accumulates from the liquid-phase passage 40 on the upper side in the gravity direction to the condenser 30. Thereby, the heat radiation of the working fluid by the condenser 30 is suppressed or substantially stopped, and the flow of the working fluid hardly occurs in the gas phase passage 50 and the liquid phase passage 40.

As described above, at the time of warming up, the liquid phase working fluid is accumulated from the liquid phase passage 40 above the fluid control valve 70 in the gravity direction to the condenser 30. In this state, the amount of the working fluid sealed in the fluid circulation circuit 4 and the mounting position of the fluid control valve 70 so that the liquid level FL is formed near the center of the heat exchanger 13 of the equipment heat exchanger 10. Has been adjusted.

The apparatus temperature control apparatus 1 of the present embodiment switches the flow of the working fluid flowing through the tube 131 of the apparatus heat exchanger 10 in the opposite direction during cooling and warming up, and flows through the apparatus heat exchanger 10. The temperature of the assembled battery 2 is adjusted by the phase change between the liquid phase and the gas phase of the working fluid. At that time, the equipment temperature control device 1 uses the equipment heat exchanger 10 as an evaporator at the time of cooling, and uses the equipment heat exchanger 10 as a condenser 30 at the time of warming up, so that the same equipment heat exchange is performed. The vessel 10 is used for cooling and warming up.

The apparatus temperature control apparatus 1 of this embodiment demonstrated above has the following effects.

(1) The apparatus temperature control apparatus 1 of this embodiment is the structure which heats the working fluid which flows through the fluid channel | path 60 provided in the outer side of the apparatus heat exchanger 10 with the heating part 61 at the time of warming-up of the assembled battery 2. FIG. . Therefore, since the vapor of the working fluid vaporized in the fluid passage 60 is supplied to the equipment heat exchanger 10, variation in the vapor temperature of the working fluid is suppressed inside the equipment heat exchanger 10. Therefore, this apparatus temperature control apparatus 1 can warm up the assembled battery 2 uniformly. As a result, the input / output characteristics of the assembled battery 2 can be prevented from being lowered, and the assembled battery 2 can be prevented from being degraded or damaged.

(2) When the assembled battery 2 is cooled, the device temperature control device 1 of the present embodiment is configured such that the condenser 30 → the liquid phase passage 40 → the lower connection portion 16 → the device heat exchanger 10 → the upper connection portion 15 → the gas phase passage. The working fluid circulates in the order of 50 → condenser 30. On the other hand, when the assembled battery 2 is warmed up, the working fluid circulates in the order of the fluid passage 60 → the upper connection portion 15 → the equipment heat exchanger 10 → the lower connection portion 16 → the fluid passage 60. That is, in the device temperature control apparatus 1, the flow path through which the working fluid flows is formed in a loop shape regardless of whether the assembled battery 2 is cooled or warmed up. Therefore, it is possible to prevent the liquid-phase working fluid and the gas-phase working fluid from flowing in the same flow path. Therefore, this apparatus temperature control apparatus 1 can warm up and cool the assembled battery 2 with high efficiency by smoothly circulating the working fluid.

(3) The apparatus temperature control apparatus 1 of this embodiment is for providing the heating part 61 in the height direction of the fluid passage 60 that connects the upper connection part 15 and the lower connection part 16 of the apparatus heat exchanger 10. Since space is ensured, the necessity of providing the heating unit 61 below the heat exchanger for equipment 10 is reduced. Therefore, this equipment temperature control apparatus 1 can improve the mounting property to a vehicle.

(4) The device temperature control apparatus 1 of the present embodiment includes a fluid control valve 70 as a heat radiation suppressing unit capable of suppressing the heat radiation of the working fluid by the condenser 30. According to this, by closing the fluid control valve 70 when the assembled battery 2 is warmed up, liquid-phase working fluid is stored in the condenser 30 from the fluid control valve 70, and heat dissipation of the working fluid by the condenser 30 is suppressed. Is done. Accordingly, the circulation of the working fluid in the gas phase passage 50, the condenser 30 and the liquid phase passage 40 is suppressed. Therefore, when the assembled battery 2 is warmed up, it is possible to flow the working fluid through the loop on the fluid passage 60 side. Therefore, this apparatus temperature control apparatus 1 can warm up the assembled battery 2 with high efficiency by smoothly circulating the working fluid.

(5) In the present embodiment, the heating unit 61 is provided in a portion of the fluid passage 60 that extends vertically in the gravity direction. According to this, the working fluid heated and vaporized by the heating unit 61 quickly flows through the fluid passage 60 upward in the gravity direction. Therefore, the working fluid in the gas phase is prevented from flowing backward from the fluid passage 60 to the second lower connection portion 162 side. Therefore, this apparatus temperature control apparatus 1 can warm up the assembled battery 2 with high efficiency by smoothly circulating the working fluid.

(Second Embodiment)
A second embodiment will be described. 2nd Embodiment changes the structure for cooling the working fluid of the apparatus temperature control apparatus 1 with respect to 1st Embodiment, Since it is the same as that of 1st Embodiment about others, 1st Only portions different from the embodiment will be described.

As shown in FIG. 9, the device temperature adjustment device 1 of the second embodiment includes a refrigeration cycle 8. The refrigeration cycle 8 includes a compressor 81, a high-pressure side heat exchanger 82, a first flow rate regulating unit 83, a first expansion valve 84, a refrigerant-working fluid heat exchanger 85, a second flow rate regulating unit 86, and a second expansion valve 87. , A low-pressure side heat exchanger 88, a refrigerant pipe 89 connecting them, and the like. The refrigerant used for the refrigeration cycle 8 may be the same as or different from the working fluid used in the device temperature control device 1.

The compressor 81 sucks and compresses refrigerant from the refrigerant-working fluid heat exchanger 85 and the refrigerant pipe 89 on the low-pressure side heat exchanger 88 side. The compressor 81 is driven by power transmitted from a traveling engine or electric motor (not shown) of the vehicle.

The high-pressure gas-phase refrigerant discharged from the compressor 81 flows into the high-pressure side heat exchanger 82. When the high-pressure gas-phase refrigerant flowing into the high-pressure side heat exchanger 82 flows through the flow path of the high-pressure side heat exchanger 82, it dissipates heat and condenses by heat exchange with the outside air.

A part of the liquid-phase refrigerant condensed in the high-pressure side heat exchanger 82 passes through the first flow rate restricting portion 83 and is reduced in pressure when passing through the first expansion valve 84 to be in a mist-like gas-liquid two-phase state. And flows into the refrigerant-working fluid heat exchanger 85. The first flow restricting unit 83 can adjust the amount of refrigerant flowing from the first expansion valve 84 into the refrigerant-working fluid heat exchanger 85. When the refrigerant that has flowed into the refrigerant-working fluid heat exchanger 85 flows through the flow path of the refrigerant-working fluid heat exchanger 85, the condenser that constitutes the fluid circulation circuit 4 of the device temperature control device 1 by the latent heat of vaporization of the refrigerant. The working fluid flowing through 30 is cooled. That is, the condenser 30 of the fluid circulation circuit 4 of the device temperature control apparatus 1 of the present embodiment and the refrigerant-working fluid heat exchanger 85 of the refrigeration cycle 8 are configured integrally, and the working fluid flowing through the fluid circulation circuit 4 Heat exchange with the refrigerant flowing through the refrigeration cycle 8 is performed. The refrigerant that has passed through the refrigerant-working fluid heat exchanger 85 is sucked into the compressor 81 via an accumulator (not shown).

On the other hand, the other part of the liquid-phase refrigerant condensed in the high-pressure side heat exchanger 82 passes through the second flow rate restricting portion 86 and is reduced in pressure when passing through the second expansion valve 87. It enters into a phase state and flows into the low pressure side heat exchanger 88. The second flow rate regulating unit 86 can adjust the amount of refrigerant flowing from the second expansion valve 87 into the low pressure side heat exchanger 88. The low-pressure side heat exchanger 88 is used, for example, in an air conditioner for performing air conditioning in the passenger compartment. In that case, the refrigerant flowing into the low-pressure side heat exchanger 88 cools the air blown into the passenger compartment by the latent heat of vaporization of the refrigerant. The refrigerant that has passed through the low-pressure side heat exchanger 88 is also sucked into the compressor 81 via an accumulator (not shown).

In the second embodiment described above, the condenser 30 constituting the fluid circulation circuit 4 and the refrigerant-working fluid heat exchanger 85 constituting the refrigeration cycle 8 are integrally configured, and the working fluid flowing through the fluid circulation circuit 4 is The cooling is performed by heat exchange with the refrigerant flowing through the refrigeration cycle 8.

According to this, the working fluid flowing through the condenser 30 of the device temperature control device 1 by adjusting the amount of refrigerant flowing through the refrigerant-working fluid heat exchanger 85 constituting the refrigeration cycle 8 by the first flow rate regulating unit 83 or the like. It is possible to adjust the amount of cooling heat supplied to. Therefore, in 2nd Embodiment, the cooling capacity of the assembled battery 2 by the apparatus temperature control apparatus 1 can be adjusted appropriately according to the emitted-heat amount of the assembled battery 2. FIG.

Note that the above-described refrigeration cycle 8 may be a heat pump cycle as well as a cooler cycle. Further, the above-described refrigeration cycle 8 may be a stand-alone for cooling the assembled battery 2 that is separated from the air conditioner for air conditioning in the passenger compartment.

(Third embodiment)
A third embodiment will be described. 3rd Embodiment changes the structure for cooling the working fluid of the apparatus temperature control apparatus 1 with respect to 1st and 2nd Embodiment, and others are the same as that of 1st and 2nd Embodiment. Therefore, only different parts from the first and second embodiments will be described.

As shown in FIG. 10, the device temperature control device 1 of the third embodiment includes a cooling water circuit 9. The cooling water circuit 9 includes a water pump 91, a cooling water radiator 92, a water-working fluid heat exchanger 93, and a cooling water pipe 94 connecting them. Cooling water flows through the cooling water circuit 9.

The water pump 91 pumps the cooling water and circulates the cooling water in the cooling water circuit 9. The cooling water radiator 92 cools the cooling water flowing through the flow path of the cooling water radiator 92 by exchanging heat with the refrigerant flowing through the evaporator constituting the refrigeration cycle 8. That is, the cooling water radiator 92 of the cooling water circuit 9 of the present embodiment is a chiller configured integrally with the evaporator of the refrigeration cycle 8, and the cooling water flowing in the cooling water circuit 9 and the low-pressure refrigerant flowing in the refrigeration cycle 8. Heat exchange. The cooling water flowing out from the cooling water radiator 92 flows into the water-working fluid heat exchanger 93.

When the cooling water flowing into the water-working fluid heat exchanger 93 flows through the flow path of the water-working fluid heat exchanger 93, the cooling water flows through the condenser 30 constituting the fluid circulation circuit 4 of the device temperature control device 1. Cool the fluid. That is, the condenser 30 of the fluid circulation circuit 4 of the device temperature control apparatus 1 of the present embodiment and the water-working fluid heat exchanger 93 of the cooling water circuit 9 are integrally configured, and the working fluid that flows through the fluid circulation circuit 4. Heat exchange with the coolant flowing through the coolant circuit 9.

In the third embodiment described above, the condenser 30 that constitutes the fluid circulation circuit 4 and the water-working fluid heat exchanger 93 that constitutes the cooling water circuit 9 are integrally configured, and the working fluid that flows through the fluid circulation circuit 4. Is cooled by heat exchange with the cooling water flowing through the cooling water circuit 9.

According to this, it is possible to set the temperature of the low-pressure refrigerant flowing through the refrigeration cycle 8 and the temperature of the cooling water flowing through the cooling water circuit 9 to different temperatures. Therefore, the device temperature control device 1 can appropriately adjust the temperature of the low-pressure refrigerant flowing through the refrigeration cycle 8 and the temperature of the cooling water flowing through the cooling water circuit 9. Therefore, the amount of cooling heat supplied from the cooling water flowing through the cooling water circuit 9 to the working fluid flowing through the condenser 30 of the device temperature control device 1 is adjusted, and the cooling capacity of the battery pack 2 by the device temperature control device 1 is adjusted. Can be appropriately adjusted according to the amount of heat generated.

(Fourth embodiment)
A fourth embodiment will be described. In the fourth embodiment, a part of the configuration of the cooling water circuit 9 is changed with respect to the third embodiment, and the other parts are the same as those in the third embodiment. Therefore, the fourth embodiment is different from the third embodiment. Only will be described.

As shown in FIG. 11, the device temperature control apparatus 1 according to the fourth embodiment includes an air cooling radiator 95 in the cooling water circuit 9. The air cooling radiator 95 cools the cooling water flowing through the flow path of the air cooling radiator 95 by exchanging heat with the outside air. In the cooling water circuit 9, the air cooling radiator 95 and the cooling water radiator 92 are connected in parallel.

In the fourth embodiment, the cooling capacity of the cooling water flowing through the cooling water circuit 9 can be increased. Therefore, this equipment temperature control apparatus 1 can improve the cooling capacity of the assembled battery 2.

(Fifth embodiment)
A fifth embodiment will be described. The fifth embodiment is obtained by changing a part of the configuration of the fluid circulation circuit 4 with respect to the first embodiment, and is otherwise the same as the first embodiment. Therefore, the fifth embodiment is different from the first embodiment. Only will be described.

As shown in FIGS. 12 and 13, the device temperature control apparatus 1 of the fifth embodiment is not provided with the fluid control valve 70 in the middle of the liquid phase passage 40. Instead, in the fifth embodiment, a shutter 34 serving as a door member capable of blocking the flow of air passing through the condenser 30 is installed in the air-cooled condenser 30. The shutter 34 is controlled to open and close by a control signal transmitted from the control device 5.

As shown in FIG. 12, when the shutter 34 is in an open state, air circulation through the condenser 30 is allowed. Therefore, air blown by the blower fan 33 or traveling wind passes through the condenser 30, and the working fluid is radiated by the condenser 30. Therefore, when the assembled battery 2 is cooled, the working fluid flows through the fluid circulation circuit 4 of the device temperature control device 1 into the condenser 30 → the liquid phase passage 40 → the lower tank 12 → the heat exchange unit 13 → the upper tank 11 → the gas phase passage 50. → The condenser 30 can be flowed in this order.

On the other hand, as shown in FIG. 13, when the shutter 34 is in a closed state, the flow of air passing through the condenser 30 is blocked. Thereby, the heat dissipation of the working fluid by the condenser 30 is suppressed or substantially stopped. Therefore, when the assembled battery 2 is warmed up, the working fluid flows through the fluid circulation circuit 4 of the device temperature control apparatus 1 in the order of the fluid passage 60 → the upper tank 11 → the heat exchange unit 13 → the lower tank 12 → the fluid passage 60. can do. Therefore, the shutter 34 according to the present embodiment functions as a heat dissipation suppression unit capable of suppressing the heat dissipation of the working fluid by the condenser 30.

In the fifth embodiment described above, by providing the shutter 34 in the air-cooled condenser 30, the fluid control valve 70 installed in the middle of the liquid phase passage 40 in the first to fourth embodiments can be eliminated. It is.

(Sixth embodiment)
A sixth embodiment will be described. In the sixth embodiment, a part of the configuration of the fluid circulation circuit 4 is changed with respect to the second embodiment, and the other parts are the same as those in the second embodiment. Therefore, the sixth embodiment is different from the second embodiment. Only will be described.

As shown in FIG. 14, the device temperature control apparatus 1 of the sixth embodiment is not provided with the fluid control valve 70 in the middle of the liquid phase passage 40. Therefore, in the sixth embodiment, when the assembled battery 2 is warmed up, instead of controlling the fluid control valve 70, the first flow regulating part 83 installed in the refrigeration cycle 8 causes the refrigerant-working fluid from the first expansion valve 84. The refrigerant flowing into the heat exchanger 85 is shut off. Thereby, the heat dissipation of the working fluid by the condenser 30 is suppressed or substantially stopped. Therefore, when the assembled battery 2 is warmed up, the working fluid flows through the fluid circulation circuit 4 of the device temperature control apparatus 1 in the order of the fluid passage 60 → the upper tank 11 → the heat exchange unit 13 → the lower tank 12 → the fluid passage 60. can do. Therefore, the first flow rate restricting portion 83 of the present embodiment functions as a heat dissipation suppressing portion capable of suppressing the heat dissipation of the working fluid by the condenser 30.

In the sixth embodiment, when the low-pressure side heat exchanger 88 is not used, the operation of the compressor 81 may be stopped when the assembled battery 2 is warmed up.

In the sixth embodiment described above, the fluid installed in the middle of the liquid phase passage 40 in the first to fourth embodiments is controlled by controlling the first flow rate restricting portion 83 to the closed state when the assembled battery 2 is warmed up. The control valve 70 can be eliminated.

(Seventh embodiment)
A seventh embodiment will be described. In the seventh embodiment, a part of the configuration of the fluid circulation circuit 4 is changed with respect to the third embodiment, and the other parts are the same as those in the third embodiment. Therefore, the seventh embodiment is different from the third embodiment. Only will be described.

As shown in FIG. 15, the device temperature control apparatus 1 of the seventh embodiment is not provided with the fluid control valve 70 in the middle of the liquid phase passage 40. Therefore, in the seventh embodiment, when the assembled battery 2 is warmed up, instead of controlling the fluid control valve 70, the water pump 91 installed in the cooling water circuit 9 is stopped and the water-working fluid heat exchanger 93 is stopped. Shut off the cooling water flow. Thereby, the heat dissipation of the working fluid by the condenser 30 is suppressed or substantially stopped. Therefore, when the assembled battery 2 is warmed up, the working fluid flows through the fluid circulation circuit 4 of the device temperature control apparatus 1 in the order of the fluid passage 60 → the upper tank 11 → the heat exchange unit 13 → the lower tank 12 → the fluid passage 60. can do. Therefore, the water pump 91 according to the present embodiment functions as a heat radiation suppressing unit capable of suppressing the heat radiation of the working fluid by the condenser 30.

In the seventh embodiment described above, the fluid control valve 70 installed in the middle of the liquid phase passage 40 in the first to fourth embodiments is stopped by stopping the driving of the water pump 91 when the assembled battery 2 is warmed up. It can be abolished.

(Eighth embodiment)
An eighth embodiment will be described. In the eighth embodiment, the attachment position of the fluid control valve 70 is changed with respect to the first embodiment, and the other parts are the same as those in the first embodiment. Therefore, only the parts different from the first embodiment are described. explain.

As shown in FIG. 16, the device temperature control apparatus 1 of the eighth embodiment is provided with a fluid control valve 70 in the middle of the gas phase passage 50. Therefore, in the eighth embodiment, when the fluid control valve 70 interrupts the flow of the working fluid flowing through the gas phase passage 50 when the assembled battery 2 is warmed up, the condensation of the working fluid by the condenser 30 is stopped. Therefore, when the assembled battery 2 is warmed up, the working fluid flows through the fluid circulation circuit 4 of the device temperature control apparatus 1 in the order of the fluid passage 60 → the upper tank 11 → the heat exchange unit 13 → the lower tank 12 → the fluid passage 60. can do.

(Ninth embodiment)
A ninth embodiment will be described. The ninth embodiment is obtained by changing a part of the configuration of the fluid circulation circuit 4 of the device temperature control device 1 with respect to the second embodiment, and is otherwise the same as the second embodiment. Only parts different from the second embodiment will be described.

As shown in FIG. 17, the device temperature control apparatus 1 of the ninth embodiment includes two types of

condensers

30 a and 30 b in the fluid circulation circuit 4. One condenser 30a is the air-cooled condenser 30a described in the first embodiment or the like. The other condenser 30b is configured integrally with the refrigerant-working fluid heat exchanger 85 of the refrigeration cycle 8 described in the second embodiment and the like. The two types of

condensers

30a and 30b are connected in parallel. The fluid control valve 70 is provided between the junction 47 of the liquid phase passage 40 extending from the two types of

condensers

30 a and 30 b and the first lower connection 161 of the equipment heat exchanger 10.

The apparatus temperature control apparatus 1 of 9th Embodiment can improve the cooling performance of the assembled battery 2 by improving the condensing capability of the working fluid by the

condensers

30a and 30b.

In addition, the combination of the

several condensers

30a and 30b provided in the fluid circulation circuit 4 of the apparatus temperature control apparatus 1 is not restricted to what was shown in FIG. 17, A various combination is employable.

(10th Embodiment)
A tenth embodiment will be described. In the tenth embodiment, the attachment position of the fluid control valve 70 is changed with respect to the ninth embodiment, and the other parts are the same as those in the ninth embodiment. Therefore, only the parts different from the ninth embodiment are described. explain.

As shown in FIG. 18, in the tenth embodiment, a fluid control valve 70 is provided between the air-cooled condenser 30a and the junction 47 of the liquid phase passage 40.

In the air-cooled condenser 30a, when the shutter 34 is not provided, heat exchange is performed by traveling wind or the like. However, when the shutter 34 is provided for the air-cooled condenser 30a, a large space around the condenser 30 is required, and the mountability on the vehicle may be deteriorated. Therefore, in the tenth embodiment, by providing the fluid control valve 70 between the air-cooled condenser 30a and the junction 47 of the liquid phase passage 40, the physique of the device temperature control device 1 can be reduced in size, Mountability can be improved.

On the other hand, the condenser 30b configured integrally with the refrigerant-working fluid heat exchanger 85 of the refrigeration cycle 8 suppresses or substantially eliminates the heat radiation of the working fluid by closing the first flow rate regulating unit 83 installed in the refrigeration cycle 8. It is possible to stop. Accordingly, also in the tenth embodiment, when the assembled battery 2 is warmed up, the fluid is controlled by controlling the fluid control valve 70 and the first flow rate restricting unit 83 so that the working fluid flows from the fluid passage 60 to the upper tank 11 to the heat exchange unit 13. It is possible to flow in the order of the lower tank 12 → the fluid passage 60.

In the tenth embodiment as well, as in the first embodiment, when the assembled battery 2 is warmed up, the liquid-phase working fluid is accumulated from the liquid phase passage 40 above the fluid control valve 70 in the gravity direction. In this state, the amount of the working fluid sealed in the fluid circulation circuit 4 and the mounting position of the fluid control valve 70 so that the liquid level FL is formed near the center of the heat exchanger 13 of the equipment heat exchanger 10. Has been adjusted.

(Eleventh embodiment)
An eleventh embodiment will be described. The eleventh embodiment is obtained by changing the connection method of the two types of condensers 30 with respect to the ninth embodiment, and the other parts are the same as those of the ninth embodiment, and therefore different from the ninth embodiment. Only will be described.

As shown in FIG. 19, the device temperature control apparatus 1 of the eleventh embodiment includes two types of

condensers

30 a and 30 b in the fluid circulation circuit 4. One condenser 30 a is an air-cooled condenser 30. The other condenser 30 b is configured integrally with the refrigerant-working fluid heat exchanger 85 of the refrigeration cycle 8. The two types of

condensers

30a and 30b are connected in series.

Note that the number of the plurality of

condensers

30a and 30b provided in the fluid circulation circuit 4 of the device temperature control device 1 is not limited to that shown in FIG. 19 and the like, and may be three or more. Moreover, the connection method of the

several condensers

30a and 30b is not restricted to what was shown in FIG. 19, etc., You may combine parallel and series.

The apparatus temperature control apparatus 1 of 11th Embodiment can improve the cooling performance of the assembled battery 2 by improving the condensing capability of the working fluid by the condenser 30. FIG.

(Twelfth embodiment)
A twelfth embodiment will be described. In the twelfth embodiment, the configurations of the fluid passage 60 and the heating unit 61 are changed with respect to the first embodiment, and the other parts are the same as those in the first embodiment, and therefore different from the first embodiment. Only will be described.

As shown in FIG. 20, in the twelfth embodiment, a heating unit 61 is provided at a portion where the fluid passage 60 extends in a substantially horizontal direction. In this case, if the working fluid that has been heated by the heating unit 61 and turned into a vapor flows back through the fluid passage 60 toward the second lower connecting portion 162, the working fluid may be circulated.

Therefore, in the twelfth embodiment, the fluid passage 60 includes a backflow suppression unit 62 extending downward in the gravitational direction from the heating unit 61 between the second lower connection unit 162 and the heating unit 61 of the equipment heat exchanger 10. Have. Specifically, in the twelfth embodiment, a part of the fluid passage 60 is formed in a U shape. Of the U-shaped portion of the fluid passage 60, the portion on the heating unit 61 side from the center of the U-shape corresponds to the backflow suppressing unit 62.

The backflow suppression unit 62 extends downward in the direction of gravity from the heating unit 61, so that the working fluid heated and vaporized by the heating unit 61 can be prevented from flowing back to the second lower connection unit 162 side. is there. Therefore, when the assembled battery 2 is warmed up, the device temperature control apparatus 1 can smoothly circulate the working fluid in the order of the fluid passage 60 → the upper tank 11 → the heat exchange unit 13 → the lower tank 12 → the fluid passage 60. it can.

(13th Embodiment)
A thirteenth embodiment will be described. The thirteenth embodiment is different from the first embodiment in that it includes a plurality of device heat exchangers 10 and is otherwise the same as the first embodiment, and thus is different from the first embodiment. Only explained.

As shown in FIG. 21, the device temperature control apparatus 1 of the thirteenth embodiment includes a plurality of

device heat exchangers

10a and 10b. The gas phase passage 50 has a first gas phase passage portion 51 and a second gas phase passage portion 52. The first gas phase passage portion 51 connects the first upper connection portion 151a of one equipment heat exchanger 10a and the first upper connection portion 151b of the other equipment heat exchanger 10b. The second gas phase passage portion 52 extends upward from the middle of the first gas phase passage portion 51 and is connected to the inlet 31 of the condenser 30. Further, the liquid phase passage 40 includes a first liquid phase passage portion 41 and a second liquid phase passage portion 42. The first liquid phase passage portion 41 connects the first lower connection portion 161a of the one device heat exchanger 10a and the first lower connection portion 161b of the other device heat exchanger 10b. The second liquid phase passage portion 42 extends upward from the middle of the first liquid phase passage portion 41 and is connected to the outlet 32 of the condenser 30.

The fluid passage 60a connects the second upper connection portion 152a and the second lower connection portion 162a of the one equipment heat exchanger 10a, and the fluid passage 60a is provided with a heating portion 61a. In addition, another fluid passage 60b connects the second upper connection portion 152b and the second lower connection portion 162b of the other equipment heat exchanger 10b, and another heating portion 61b is also provided in the other fluid passage 60b. It has been.

With this configuration, the device temperature control apparatus 1 according to the thirteenth embodiment includes a plurality of device heat exchangers 10 according to the location of the assembled battery 2 even when the assembled battery 2 is disposed at multiple locations of the vehicle. Can be arranged.

(14th Embodiment)
A fourteenth embodiment will be described. The fourteenth embodiment also includes a plurality of device heat exchangers 10 with respect to the first embodiment, and the other parts are the same as those of the first embodiment, and therefore different parts from the first embodiment. Only explained.

As shown in FIG. 22, the device temperature control apparatus 1 according to the fourteenth embodiment also includes a plurality of

device heat exchangers

10a and 10b. The gas phase passage 50 includes a heat exchanger gas phase passage 53 and a condenser gas phase passage 54. The heat exchanger gas-phase passage 53 connects the first upper connection portion 151a of the one device heat exchanger 10a and the second upper connection portion 152b of the other device heat exchanger 10b. The condenser gas-phase passage 54 connects the first upper connection portion 151 b of the other equipment heat exchanger 10 b and the inlet 31 of the condenser 30. Further, the liquid phase passage 40 has a heat exchanger liquid phase passage 43 and a condenser liquid phase passage 44. The liquid phase passage 43 for heat exchanger connects the first lower connection portion 161a of the one device heat exchanger 10a and the second lower connection portion 162b of the other device heat exchanger 10b. The condenser liquid phase passage 44 connects the first lower connection portion 161 b of the other equipment heat exchanger 10 b and the outlet 32 of the condenser 30.

The fluid passage 60a connects the second upper connection portion 152a and the second lower connection portion 162a of the one equipment heat exchanger 10a, and the fluid passage 60a is provided with a heating portion 61a.

Even with this configuration, the device temperature control apparatus 1 of the fourteenth embodiment has a plurality of device heat exchangers 10 depending on the location of the assembled battery 2 even when the assembled battery 2 is disposed at a plurality of locations of the vehicle. Can be arranged.

(Fifteenth embodiment)
A fifteenth embodiment is described. In the fifteenth and sixteenth embodiments described below, the installation method of the assembled battery 2 with respect to the equipment heat exchanger 10 is changed with respect to the first to fourteenth embodiments described above. The same as in the first to fourteenth embodiments. Therefore, the fifteenth and sixteenth embodiments will be described only with respect to portions different from the first to fourteenth embodiments.

23, in the fifteenth embodiment, the assembled battery 2 is installed such that the terminals 22 of the battery cells 21 constituting the assembled battery 2 are on the upper side in the gravity direction. In the assembled battery 2, a surface 24 perpendicular to the surface 25 on which the terminals 22 are provided is installed on the side surface of the heat exchange unit 13 of the equipment heat exchanger 10 via the heat conductive sheet 14.

(Sixteenth embodiment)
As shown in FIG. 24, in the sixteenth embodiment, the assembled battery 2 is installed such that the terminals 22 of the battery cells 21 constituting the assembled battery 2 are in a direction intersecting with the direction of gravity. In the assembled battery 2, a surface 23 opposite to the surface 25 on which the terminals 22 are provided is installed on the side surface of the heat exchange unit 13 of the equipment heat exchanger 10 via the heat conductive sheet 14. In addition, the assembled battery 2 is installed only on one side surface of the heat exchanging unit 13, and is not installed on the other side surface.

(17th Embodiment)
A seventeenth embodiment will be described. In the seventeenth and eighteenth embodiments described below, the configuration of the equipment heat exchanger 10 and the installation method of the assembled battery 2 are changed with respect to the first to fourteenth embodiments described above. Others are the same as those in the first to fourteenth embodiments. Therefore, in the seventeenth and eighteenth embodiments, only portions different from the first to fourteenth embodiments will be described.

As shown in FIG. 25, in the seventeenth embodiment, the equipment heat exchanger 10 includes two

lower tanks

121 and 122 and one upper tank 11. In addition, the equipment heat exchanger 10 includes a horizontal heat exchange unit 132 that connects the two

lower tanks

121 and 122, and a vertical heat exchange unit 133 that is provided perpendicular to the horizontal heat exchange unit 132. Have. A portion of the vertical heat exchange unit 133 on the lower side in the gravity direction is connected to an intermediate position of the horizontal heat exchange unit 132, and a portion of the vertical heat exchange unit 133 on the lower side in the gravity direction is connected to the upper tank 11. . The two

lower tanks

121 and 122, the one upper tank 11, the horizontal heat exchange unit 132, and the vertical heat exchange unit 133 are integrally formed.

The assembled battery 2 is installed such that the terminals 22 of the battery cells 21 constituting the assembled battery 2 are in a direction intersecting with the direction of gravity. In the assembled battery 2, a surface 24 perpendicular to the surface 25 on which the terminals 22 are provided is installed in the horizontal heat exchange unit 132 via the heat conductive sheet 14. In the assembled battery 2, the surface 23 opposite to the surface 25 on which the terminals 22 are provided is installed in the vertical heat exchange unit 133 via the heat conductive sheet 14.

In the seventeenth embodiment, the device heat exchanger 10 includes a surface 24 perpendicular to the surface 25 on which the terminals 22 of the assembled battery 2 are provided, and a surface 23 opposite to the surface 25 on which the terminals 22 are provided. Can be cooled or warmed up simultaneously.

(Eighteenth embodiment)
As shown in FIG. 26, the eighteenth embodiment includes a horizontal portion 134, a first inclined portion 135, and a second inclined portion 136. The horizontal part 134 extends in the horizontal direction. The first inclined portion 135 extends obliquely downward in the gravitational direction from one portion of the horizontal portion 134. The second inclined portion 136 extends obliquely upward in the gravitational direction from the other portion of the horizontal portion 134. The lower tank 12 is connected to a portion of the first inclined portion 135 opposite to the horizontal portion 134. The upper tank 11 is connected to a portion of the second inclined portion 136 opposite to the horizontal portion 134. That is, the upper tank 11 is arranged at a position higher than the lower tank 12. The horizontal part 134, the first inclined part 135, the second inclined part 136, the lower tank 12 and the upper tank 11 are integrally formed.

The assembled battery 2 is installed such that the terminals 22 of the battery cells 21 constituting the assembled battery 2 are directed upward in the direction of gravity. In the assembled battery 2, the surface 23 opposite to the surface 25 on which the terminals 22 are provided is installed on the horizontal portion 134 of the heat exchanging portion 13 via the heat conductive sheet 14.

The installation method of the assembled battery 2 is not limited to that shown in the first to eighteenth embodiments, and various installation methods can be employed. The number, shape, etc. of each battery cell 21 constituting the assembled battery 2 are not limited to those shown in the first to eighteenth embodiments, and any one can be adopted.

(Nineteenth embodiment)
A nineteenth embodiment will be described. In the nineteenth embodiment, a part of the configuration of the fluid passage 60 is changed with respect to the first embodiment, and the other parts are the same as those in the first embodiment, and therefore, different parts from the first embodiment. Only explained.

As shown in FIGS. 27 and 28, in the nineteenth embodiment, the fluid passage 60 has a liquid storage portion 63 for storing a liquid-phase working fluid flowing through the fluid passage 60 in the middle of the passage. At least a part of the liquid storage part 63 is located within the height range of the upper connection part 15 and the lower connection part 16 of the equipment heat exchanger 10. Thereby, the apparatus temperature control apparatus 1 stores the amount of the working fluid necessary for cooling and warming up the assembled battery 2 in the liquid storage unit 63, and adjusting the height of the liquid level FL of the liquid storage unit 63. The height of the liquid level FL of the working fluid in the equipment heat exchanger 10 can be easily adjusted during heating and cooling of the assembled battery 2.

FIG. 28 is a cross-sectional view of the equipment heat exchanger 10 and the fluid passage 60. The liquid reservoir 63 is formed by increasing the inner diameter of a part of the fluid passage 60. Thereby, the liquid storage part 63 can be provided in the fluid passage 60 with a simple configuration.

Further, the heating unit 61 is provided at a position where the liquid-phase working fluid stored in the liquid storage unit 63 can be heated. Thereby, the heating efficiency of the working fluid by the heating part 61 can be improved.

(20th embodiment)
A twentieth embodiment will be described. In the twentieth embodiment, the configuration and the like of the fluid passage 60 are changed with respect to the first embodiment, and the other parts are the same as those in the first embodiment. Therefore, only the parts different from the first embodiment are described. To do.

As shown in FIGS. 29 and 30, in the twentieth embodiment, the fluid passage 60 has a liquid storage portion 63. The liquid storage portion 63 included in the fluid passage 60 communicates with the liquid phase passage 40. In addition, a portion of the fluid passage 60 opposite to the liquid storage portion 63 communicates with the gas phase passage 50 via the three-way switching valve 71.

29, the flow of the working fluid when the device temperature control device 1 cools the assembled battery 2 is indicated by solid and broken arrows. As described in the first embodiment, when the assembled battery 2 is cooled, the control device 5 turns off the power supply to the heating unit 61 and stops the operation of the heating unit 61. Further, the control device 5 opens the fluid control valve 70 so that the working fluid flows through the liquid phase passage 40. Furthermore, the control device 5 turns on the power of the blower fan 33 that blows air to the condenser 30 when the vehicle is stopped. However, when the vehicle is traveling, the control device 5 turns off the power of the blower fan 33 because the traveling wind flows into the condenser 30.

Furthermore, in the twentieth embodiment, the control device 5 controls the three-way switching valve 71 when the assembled battery 2 is cooled. Due to the operation of the three-way switching valve 71, the gas phase passage 50 on the upper connecting portion 15 side with respect to the three-way switching valve 71 and the gas phase passage 50 on the condenser 30 side with respect to the three-way switching valve 71 communicate with each other. And the gas phase passage 50 are disconnected.

Thereby, the flow of the working fluid at the time of cooling the assembled battery 2 is in the order of the condenser 30 → the liquid phase passage 40 → the lower tank 12 → the heat exchange unit 13 → the upper tank 11 → the gas phase passage 50 → the condenser 30. . That is, a loop-shaped flow path that passes through the equipment heat exchanger 10 and the condenser 30 is formed.

On the other hand, in FIG. 30, the flow of the working fluid when the device temperature control device 1 warms up the assembled battery 2 is indicated by solid and broken arrows. As described in the first embodiment, when the assembled battery 2 is warmed up, the control device 5 turns on the energization of the heating unit 61 and operates the heating unit 61. In addition, the control device 5 closes the fluid control valve 70 and blocks the flow of the working fluid in the liquid phase passage 40.

Furthermore, in the twentieth embodiment, the control device 5 controls the three-way switching valve 71 when the assembled battery 2 is warmed up. By the operation of the three-way switching valve 71, the gas-phase passage 50 and the fluid passage 60 on the upper connection side of the three-way switching valve 71 communicate with each other, and the gas-phase passage 50 and the fluid passage on the condenser 30 side of the three-way switching valve 71. Communication with 60 is cut off.

Thereby, the flow of the working fluid when the assembled battery 2 is warmed up is in the order of the fluid passage 60 → the upper tank 11 → the heat exchange unit 13 → the lower tank 12 → the fluid passage 60. That is, a loop-shaped flow path that passes through the equipment heat exchanger 10 and the fluid passage 60 is formed without passing through the condenser 30.

(21st Embodiment)
A twenty-first embodiment will be described. The twenty-first embodiment is obtained by changing the configuration of the equipment heat exchanger 10 with respect to the first to twentieth embodiments, and is otherwise the same as the first to twentieth embodiments. Only parts different from the twentieth embodiment will be described.

As shown in FIG. 31, the equipment heat exchanger 10 of the 21st embodiment does not have an upper tank, a lower tank, and a plurality of tubes. The equipment heat exchanger 10 according to the twenty-first embodiment is configured by a single container 17. The device heat exchanger 10 according to the twenty-first embodiment can achieve the same effects as the device heat exchanger 10 described in the first to twentieth embodiments.

(Twenty-second embodiment)
A twenty-second embodiment will be described. The twenty-second embodiment is the same as the first embodiment except for the cooling function of the device temperature control device 1 with respect to the first embodiment, and the other parts are the same as the first embodiment. Only explained.

32, the equipment heat exchanger 10 according to the twenty-second embodiment does not include the condenser 30, the liquid phase passage 40, and the gas phase passage 50. The fluid circulation circuit 4 included in the equipment heat exchanger 10 of the twenty-second embodiment is configured as a fluid circuit in which the equipment heat exchanger 10 and the fluid passage 60 are closed.

The fluid passage 60 has one end connected to the upper connection portion 15 of the equipment heat exchanger 10 and the other end connected to the lower connection portion 16 of the equipment heat exchanger 10. The fluid passage 60 is provided with a heating unit 61 for heating the liquid-phase working fluid flowing through the fluid passage 60.

When the assembled battery 2 is warmed up, the control device 5 turns on the power to the heating unit 61 and operates the heating unit 61. The working fluid that is heated by the heating unit 61 and becomes vapor flows in the fluid passage 60 upward in the gravity direction, and flows into the upper tank 11 of the equipment heat exchanger 10 from the upper connection unit 15. The gas-phase working fluid is condensed by being divided into a plurality of tubes 131 in contact with the low-temperature battery cells 21 and exchanging heat with each of the low-temperature battery cells 21 due to the property of flowing in a lower temperature. In this process, the battery cell 21 is warmed up (ie, heated) by the latent heat of condensation of the working fluid. Thereafter, the working fluid in a liquid phase joins in the lower tank 12 of the equipment heat exchanger 10 and flows from the lower connection portion 16 to the fluid passage 60. As described above, the flow of the working fluid when the assembled battery 2 is warmed up is in the order of the fluid passage 60 → the upper tank 11 → the heat exchange unit 13 → the lower tank 12 → the fluid passage 60. That is, a loop-shaped flow path that passes through the equipment heat exchanger 10 and the fluid passage 60 is formed.

The device temperature adjustment device 1 of the 22nd embodiment can exhibit the same effect as the operation effect during the warm-up of the device temperature adjustment device 1 described in the first embodiment. In addition, the configuration described in the first to 21st embodiments can be appropriately combined with the configuration of the 22nd embodiment.

(23rd Embodiment)
A twenty-third embodiment will be described with reference to FIGS. As described in the first to twenty-second embodiments, when the device temperature control apparatus 1 warms up the assembled battery 2 as the target device, the working fluid heated to the gas phase by the heating unit 61 is Then, the fluid flows from the fluid passage 60 into the equipment heat exchanger 10 via the upper connection portion 15. The working fluid in the gas phase dissipates heat to the low-temperature battery cells 21 in the equipment heat exchanger 10 and condenses into a liquid phase. At that time, in the equipment heat exchanger 10, the working fluid has a large amount of condensation in the upper part of the plurality of tubes 131, and the liquid-phase working fluid accumulates on the bottom and side walls in the lower part of the plurality of tubes 131. Therefore, the amount of condensation of the working fluid is small. Therefore, although the upper part of each battery cell 21 has a large heating amount due to the latent heat of condensation of the working fluid, the lower part of each battery cell 21 has a smaller heating amount than the upper part. As a result, when temperature variation (that is, temperature distribution) between the upper part and the lower part of the battery cell 21 increases, current concentration occurs in the upper part where the temperature of the battery cell 21 is high when the assembled battery 2 is charged and discharged. There are concerns about the occurrence.

Therefore, the twenty-third to twenty-sixth embodiments described below are intended to suppress the temperature distribution of the assembled battery 2 when the device temperature control device 1 warms up the assembled battery 2.

As shown in FIG. 33, the configuration of the device temperature adjustment device 1 of the present embodiment is the same as the configuration described in the eighth embodiment. That is, the heating unit 61 is configured by an electric heater that generates heat when energized.

In addition, in FIG. 33, the structure of each sensor connected to the control apparatus 5 and the control apparatus 5 is illustrated. The control device 5 receives signals transmitted from one or more battery temperature sensors 101, working fluid temperature sensors 102, heater temperature sensors 103, and the like. One or more battery temperature sensors 101 detect the temperature of the battery. The working fluid temperature sensor 102 detects the temperature of the working fluid circulating in the thermosiphon circuit. The heater temperature sensor 103 detects the temperature of the heating unit 61. In addition, the control device 5 includes a temperature distribution determination unit 110 that determines the size of the temperature distribution of the assembled battery 2, a heater energization time detection unit 111 that detects an energization time to the heating unit 61, and electric power supplied to the heating unit 61. And a heater power detection unit 112 for detecting. Note that the control device 5, the temperature distribution determination unit 110, the heater energization time detection unit 111, the heater power detection unit 112, and the like may be configured integrally, or may be configured separately. This is the same in the embodiments described later.

33 and 35 show a state before the device temperature control device 1 warms up the assembled battery 2. The control device 5 stops energizing the heating unit 61. In this state, as shown in FIG. 35, the liquid level FL of the working fluid in the equipment heat exchanger 10 is at a relatively low position in the height direction of the battery cell 21.

Next, FIG. 34 and FIG. 36 show a state when the device temperature control device 1 is warming up the assembled battery 2. When the assembled battery 2 is warmed up, the control device 5 energizes the heating unit 61 and heats the working fluid by the heating unit 61. In addition, the control device 5 closes the fluid control valve 70 and blocks the flow of the working fluid in the gas phase passage 50.

34, the flow of the working fluid when the assembled battery 2 is warmed up is indicated by solid and broken arrows. When the heating unit 61 heats the working fluid in the fluid passage 60, the working fluid in the fluid passage 60 evaporates and flows into the upper tank 11 of the equipment heat exchanger 10 from the upper connection portion 15. In the plurality of tubes 131 of the equipment heat exchanger 10, the gas phase working fluid dissipates heat to the assembled battery 2 and condenses. In this process, the battery cell 21 is warmed up (ie, heated) by the latent heat of condensation of the working fluid. Due to the head difference between the liquid level FL of the working fluid condensed in the equipment heat exchanger 10 and the liquid level FL of the working fluid in the fluid passage 60, the liquid phase working fluid of the equipment heat exchanger 10 flows from the lower tank 12. The fluid flows to the fluid passage 60 via the lower connection portion 16. The working fluid is heated by the heating unit 61 in the fluid passage 60 and evaporated again, and flows into the equipment heat exchanger 10. The device temperature control device 1 can warm up the assembled battery 2 by circulating such working fluid.

As shown in FIG. 36, when the assembled battery 2 is warmed up, the working fluid in the vapor phase is condensed in the plurality of tubes 131 of the equipment heat exchanger 10, and travels along the side wall 137 in the tubes 131 and moves downward in the gravity direction. Flows to the side. Therefore, the liquid film of the working fluid formed on the side wall 137 in the tube 131 gradually increases from the upper side to the lower side. Therefore, since the liquid film of the working fluid is thin above the apparatus heat exchanger 10, the heating capacity of the battery cells 21 due to the latent heat of condensation of the working fluid is relatively large. On the other hand, since the liquid film of the working fluid is thicker below the equipment heat exchanger 10, the heating capacity of the battery cell 21 due to the latent heat of condensation of the working fluid becomes relatively small. In addition, the liquid level FL of the working fluid is high below the equipment heat exchanger 10, and the heating capacity of the battery cell 21 due to the latent heat of condensation of the working fluid is very small below the liquid level FL. Therefore, as the warm-up time elapses, the temperature distribution of the upper part and the lower part of each battery cell 21 gradually increases.

Therefore, in the present embodiment, the control device 5 performs control to stop energization of the heating unit 61 after a predetermined time has elapsed from the start of warming up of the assembled battery 2. Thereby, the inflow of the working fluid from the fluid passage 60 to the equipment heat exchanger 10 is stopped. Therefore, there is no head difference between the liquid level FL in the equipment heat exchanger 10 and the liquid level FL in the fluid passage 60, so that the working fluid level FL in the equipment heat exchanger 10 as shown in FIG. Go down. 37, the liquid film on the side wall 137 in the tube 131 of the equipment heat exchanger 10 flows downward, and further, as shown by the arrow β, the liquid film on the upper side wall in the tube 131. Evaporates by heat exchange with the part of the battery cell 21 that has been heated up to that point. Therefore, the liquid film on the side wall 137 in the tube 131 is thinned, and the area where the side wall 137 in the tube 131 is exposed to the gas-phase working fluid is increased. Thereby, the working fluid can be condensed in a wide range from the upper part to the lower part in the tube 131. Therefore, the working fluid evaporated at a relatively high temperature portion above the tube 131 is condensed at a relatively low temperature portion below the tube 131, and each battery cell 21 has a temperature distribution in the upper portion and the lower portion. It becomes smaller gradually. Moreover, since heat conduction also occurs in each battery cell 21, the temperature equalization of each battery cell 21 is promoted with the passage of time.

The control device 5 starts energizing the heating unit 61 again after a certain time has elapsed since the energization of the heating unit 61 was stopped. In this way, the control device 5 can suppress an increase in the temperature distribution of the assembled battery 2 by warming up the assembled battery 2 while intermittently repeating driving and stopping of the heating unit 61.

Next, the warm-up control process performed by the control device 5 of the present embodiment will be described with reference to the flowchart of FIG.

First, in step S10, the control device 5 determines whether or not there is a warm-up request for the assembled battery 2. When there is a warm-up request for the assembled battery 2, the control device 5 moves the process to step S20.

In step S20, the control device 5 starts energizing the heating unit 61, and the process proceeds to step S30.

In step S30, the control device 5 determines whether or not the temperature distribution of the assembled battery 2 is equal to or greater than a predetermined first temperature threshold value. The first temperature threshold is a value that is set by, for example, experiments or the like and is stored in advance in the memory of the control device 5.

Here, the temperature distribution determination unit 110 included in the control device 5 can detect the size of the temperature distribution of the assembled battery 2 by the following method based on signals input from the sensors shown in FIG. Is possible.

As a first method, the control device 5 detects the size of the temperature distribution of the assembled battery 2 based on signals input from the plurality of battery temperature sensors 101 that detect the temperature of the battery. The plurality of battery temperature sensors 101 are preferably installed in the upper part and the lower part of the battery cell 21. Thereby, the control device 5 can directly detect the magnitude of the temperature distribution in the upper part and the lower part of the battery cell 21.

As a second method, the control device 5 detects the size of the temperature distribution of the assembled battery 2 based on the signals input from the heater temperature sensor 103 and the working fluid temperature sensor 102. The heater temperature sensor 103 detects the temperature of the heating unit 61. The working fluid temperature sensor 102 detects the temperature of the working fluid circulating in the thermosiphon circuit of the device temperature control device 1. The higher the temperature of the heating unit 61 with respect to the temperature of the working fluid circulating in the thermosiphon circuit, the greater the heating capacity of the assembled battery 2 by the device temperature control device 1, and thus the temperature distribution of the assembled battery 2 becomes larger.

As a third method, the control device 5 detects the size of the temperature distribution of the assembled battery 2 based on the time during which the heating unit 61 is continuously operated. The time during which the heating unit 61 is continuously operated is the continuous energization on-time for the heating unit 61 detected by the heater energization time detection unit 111. The longer the time during which the heating unit 61 is operating continuously, the greater the temperature distribution of the assembled battery 2.

In addition, the control apparatus 5 can also detect the magnitude | size of the temperature distribution of the assembled battery 2 based on the time when the heating part 61 has stopped operation | movement continuously. The time during which the heating unit 61 continuously stops operating is the continuous energization off time to the heating unit 61 detected by the heater energization time detection unit 111. The longer the time during which the heating unit 61 is continuously stopped, the smaller the temperature distribution of the assembled battery 2.

As a fourth method, the control device 5 detects the size of the temperature distribution of the assembled battery 2 based on the power supplied to the heating unit 61. The power supplied to the heating unit 61 is detected by the heater power detection unit 112. As the electric power supplied to the heating unit 61 is larger, the heating capacity of the assembled battery 2 by the device temperature control device 1 becomes larger, and the temperature distribution of the assembled battery 2 becomes larger. On the other hand, the smaller the electric power supplied to the heating unit 61, the smaller the heating capacity of the assembled battery 2 by the device temperature control device 1, and thus the temperature distribution of the assembled battery 2 becomes smaller.

38. When the control device 5 determines in step S30 of FIG. 38 that the temperature distribution of the assembled battery 2 is equal to or greater than a predetermined first temperature threshold, the process proceeds to step S40.

In step S40, the control device 5 stops energizing the heating unit 61. Thereby, the inflow of the working fluid from the fluid passage 60 to the equipment heat exchanger 10 is stopped, and the flow of the working fluid is stopped. For this reason, as shown in FIG. 37, the liquid level FL of the working fluid in the equipment heat exchanger 10 is lowered, and the liquid film on the side wall 137 in the tube 131 is thinned. The area exposed to the phase working fluid is increased. Therefore, the working fluid can be condensed in a wide range from the upper part to the lower part in the tube 131, and the temperature distribution of the upper part and the lower part of each battery cell 21 is gradually reduced. Moreover, since heat conduction also occurs inside each battery cell 21, the temperature distribution of each battery cell 21 becomes smaller with the passage of time.

In step S50 following step S40, the control device 5 determines whether or not the temperature variation of the assembled battery 2 has been eliminated. Specifically, the control device 5 determines whether or not the temperature distribution of the assembled battery 2 is equal to or less than a predetermined second temperature threshold value. The second temperature threshold is a value that is set, for example, by an experiment or the like and stored in advance in the memory of the control device 5. If the control device 5 determines that the temperature distribution of the assembled battery 2 is greater than the predetermined second temperature threshold, the process proceeds to step S60, assuming that the temperature variation of the assembled battery 2 has not been eliminated. In step S60, the control device 5 maintains a state where the energization to the heating unit 61 is stopped, and the process proceeds to step S50. Steps S50 and S60 are repeated until the temperature distribution of the assembled battery 2 is equal to or lower than a predetermined second temperature threshold.

On the other hand, if the control device 5 determines in step S50 that the temperature distribution of the assembled battery 2 is equal to or lower than the predetermined second temperature threshold, the process proceeds to step S70 assuming that the temperature variation of the assembled battery 2 has been eliminated. In step S <b> 70, the control device 5 resumes energization to the heating unit 61 and ends the process once. And after predetermined time progress, the control apparatus 5 repeats the process mentioned above from step S10 again.

In addition, when there is no warming-up request | requirement of the assembled battery 2 by step S10 mentioned above, the control apparatus 5 transfers a process to step S80, makes the state which stopped the electricity supply to the heating part 61, and once complete | finishes a process. And after predetermined time progress, a process is repeated from step S10 again.

In addition, when the control device 5 determines in step S30 described above that the temperature distribution of the assembled battery 2 is smaller than the predetermined first temperature threshold, the process proceeds to step S90, and energization of the heating unit 61 is continued. The process is temporarily terminated. And after predetermined time progress, a process is repeated from step S10 again.

The operation and effect of the warm-up control process of this embodiment will be described with reference to the graph of FIG.

In FIG. 39, the transition of the temperature distribution of the assembled battery 2 when the warm-up control process of the present embodiment is performed is shown by a solid line TD1. On the other hand, the solid line TD2 shows the transition of the temperature distribution of the assembled battery 2 when the warm-up control process of the present embodiment is not performed and the energization of the heating unit 61 is continuously turned on during warm-up.

As shown by the solid line TD2, when the warm-up control process of the present embodiment is not performed and the energization of the heating unit 61 is continuously turned on during warm-up, the temperature distribution of the assembled battery 2 is timed from time t1 to time t3. It grows with time. At time t3, the temperature distribution of the assembled battery 2 is maximum. When the warming-up of the assembled battery 2 is completed at time t3, the energization to the heating unit 61 is stopped, so that the temperature distribution of the assembled battery 2 decreases with time.

On the other hand, as shown by the solid line TD1, when the warm-up control process of the present embodiment is performed, the heating unit 61 is energized from time t1 to t2, from t4 to t5, and from t6 to t7, and from time t2. Energization to the heating unit 61 is stopped after t4 and t5 to t6 and after t7. As described above, when the energization of the heating unit 61 is intermittently repeated during warm-up, the temperature distribution of the assembled battery 2 changes within a certain range. Therefore, the control device 5 warms up the assembled battery 2 while suppressing an increase in the temperature distribution of the assembled battery 2 by intermittently repeating driving and stopping of the heating unit 61 when the assembled battery 2 is warmed up. Is possible. As a result, when the assembled battery 2 performs charging / discharging, the device temperature control apparatus 1 prevents current concentration from occurring in a high temperature portion in the battery cell 21, and causes deterioration or breakage of the assembled battery 2. Can be prevented.

(24th Embodiment)
A twenty-fourth embodiment will be described with reference to FIGS. The configuration of the device temperature adjustment device 1 of the present embodiment is the same as the configuration described in the twenty-third embodiment. However, the present embodiment differs from the above-described twenty-third embodiment in the warm-up control process by the control device 5. In the twenty-third embodiment described above, the control device 5 suppresses an increase in the temperature distribution of the assembled battery 2 by controlling to intermittently turn on and off the energization of the heating unit 61 when the assembled battery 2 is warmed up. . On the other hand, in the present embodiment, the control device 5 suppresses an increase in the temperature distribution of the assembled battery 2 by controlling to repeatedly increase and decrease the heating capacity of the heating unit 61 when the assembled battery 2 is warmed up. is there.

FIG. 41 shows a state before the device temperature control device 1 warms up the assembled battery 2. The control device 5 stops energizing the heating unit 61. In this state, the liquid level FL of the working fluid in the equipment heat exchanger 10 is at a relatively low position in the height direction of the battery cell 21.

Next, FIG. 42 shows a state where the device temperature control device 1 is warming up the assembled battery 2. When the assembled battery 2 is warmed up, the control device 5 energizes the heating unit 61 and heats the working fluid by the heating unit 61. When the assembled battery 2 is warmed up, the gas-phase working fluid is condensed in the plurality of tubes 131 of the equipment heat exchanger 10, flows along the side wall 137 in the tubes 131, and flows downward in the gravity direction. Therefore, the liquid film of the working fluid formed on the side wall 137 in the tube 131 gradually increases from the upper side to the lower side. Therefore, since the liquid film of the working fluid is thin above the apparatus heat exchanger 10, the heating capacity of the battery cell 21 by the condensation latent heat of the working fluid is large. On the other hand, since the liquid film of the working fluid is thicker below the equipment heat exchanger 10, the heating capacity of the battery cell 21 due to the latent heat of condensation of the working fluid becomes relatively small. In addition, the liquid level FL of the working fluid is high below the equipment heat exchanger 10, and the heating capacity of the battery cell 21 due to the latent heat of condensation of the working fluid is very small below the liquid level FL. Therefore, as the warm-up time elapses, the temperature distribution of the upper part and the lower part of each battery cell 21 gradually increases.

Therefore, in the present embodiment, after a predetermined time has elapsed since the warm-up of the assembled battery 2 has started, the control device 5 performs control to reduce the heating capacity of the heating unit 61. Thereby, the inflow amount of the working fluid from the fluid passage 60 to the equipment heat exchanger 10 is reduced, and the flow of the working fluid becomes gentle. Therefore, as shown in FIG. 43, the liquid level FL of the working fluid in the equipment heat exchanger 10 is lowered. In addition, since the liquid film on the side wall 137 in the tube 131 of the equipment heat exchanger 10 becomes thin, the difference in heating ability due to the latent heat of condensation of the working fluid is reduced between the upper part and the lower part in the tube 131. That is, the difference in the amount of heat exchange between the upper part and the lower part in the tube 131 is reduced. In addition, heat conduction occurs in each battery cell 21. Therefore, with the passage of time from the start of the decrease in heating capacity, the temperature distribution of the upper part and the lower part of each battery cell 21 gradually decreases.

The control device 5 performs control to increase the heating capacity of the heating unit 61 again after a certain time has elapsed since the heating capacity of the heating unit 61 was decreased. Thus, the control device 5 can suppress an increase in the temperature distribution of the assembled battery 2 by warming up the assembled battery 2 while repeatedly increasing and decreasing the heating capacity of the heating unit 61.

The warm-up control process performed by the control device 5 of the present embodiment will be described with reference to the flowchart of FIG.

The processing from step S10 to step S30 is the same as the processing described in the twenty-third embodiment.

When the control device 5 determines in step S30 that the temperature distribution of the assembled battery 2 is equal to or greater than the predetermined first temperature threshold, the process proceeds to step S41. In step S <b> 41, the control device 5 reduces the amount of power supplied to the heating unit 61 and decreases the heating capacity of the heating unit 61. Thereby, the inflow amount of the gaseous working fluid from the fluid passage 60 to the equipment heat exchanger 10 is reduced, and the flow of the working fluid becomes gentle. Therefore, as shown in FIG. 43, the liquid level FL of the working fluid in the equipment heat exchanger 10 is lowered. In addition, the liquid film on the side wall 137 in the tube 131 of the equipment heat exchanger 10 becomes thin, and the difference in the heat exchange amount between the upper part and the lower part in the tube 131 is reduced. In addition, heat conduction occurs in each battery cell 21. Accordingly, each battery cell 21 gradually decreases in temperature distribution in the upper part and the lower part as time passes.

In step S50 following step S41, the control device 5 determines whether or not the temperature variation of the assembled battery 2 has been eliminated. If the control device 5 determines that the temperature variation of the assembled battery 2 has not been eliminated, the process proceeds to step S61. In step S61, the control device 5 maintains a state where the heating capacity of the heating unit 61 is reduced. The process of step S50 and step S61 is repeatedly performed until the temperature variation of the assembled battery 2 is eliminated.

On the other hand, if the control device 5 determines in step S50 that the temperature variation of the assembled battery 2 has been eliminated, the process proceeds to step S71. In step S71, the control device 5 increases the heating capacity of the heating unit 61 again. Specifically, the control device 5 increases the amount of power supplied to the heating unit 61. After step S71, the process is temporarily terminated. And after predetermined time progress, the control apparatus 5 repeats a process from step S10 again.

In addition, if the control apparatus 5 determines with the temperature distribution of the assembled battery 2 being smaller than the predetermined 1st temperature threshold value by step S30 mentioned above, a process will transfer to step S91 and the heating capability of the heating part 61 will be maintained continuously. To do. And after predetermined time progress, a process is repeated from step S10 again.

The warm-up control process described in this embodiment can achieve the same effects as the warm-up control process of the 23rd embodiment described above.

(25th Embodiment)
A twenty-fifth embodiment will be described with reference to FIG. In the twenty-fifth embodiment, a Peltier element 64 is used instead of the electric heater in the twenty-third and twenty-fourth embodiments described above.

FIG. 44 illustrates each sensor connected to the control device 5. Signals transmitted from the battery temperature sensor 101, the working fluid temperature sensor 102, the Peltier element temperature sensor 104 that detects the temperature of the Peltier element 64, and the like are input to the control device 5. The control device 5 also includes a temperature distribution determination unit 110, a Peltier element energization time detection unit 113 that detects energization time to the Peltier element 64, and a Peltier element power detection unit 114 that detects power supplied to the Peltier element 64. Etc.

The warm-up control process performed by the control device 5 of the present embodiment is the same as the warm-up control process described in the 23rd and 24th embodiments described above.

Here, in the present embodiment, the temperature distribution determination unit 110 included in the control device 5 determines the size of the temperature distribution of the assembled battery 2 based on the signal input from each sensor illustrated in FIG. Can be detected.

As a first method, the control device 5 detects the size of the temperature distribution of the assembled battery 2 based on signals input from the plurality of battery temperature sensors 101 that detect the temperature of the battery. Thereby, the control device 5 can directly detect the magnitude of the temperature distribution in the upper part and the lower part of the battery cell 21.

As a second method, the control device 5 detects the size of the temperature distribution of the assembled battery 2 based on signals input from the Peltier element temperature sensor 104 and the working fluid temperature sensor 102. The higher the temperature of the Peltier element 64 relative to the temperature of the working fluid circulating in the thermosiphon circuit, the greater the heating capacity of the assembled battery 2 by the device temperature control device 1, and thus the temperature distribution of the assembled battery 2 increases.

As a third method, the control device 5 determines the temperature distribution of the assembled battery 2 based on the time during which the Peltier element 64 is continuously operated or the time when the Peltier element 64 is continuously stopped. Detect the size. The longer the time that the Peltier element 64 is operating continuously, the greater the temperature distribution of the assembled battery 2. The longer the time during which the Peltier element 64 has stopped operating, the smaller the temperature distribution of the battery pack 2 becomes.

As a fourth method, the control device 5 detects the size of the temperature distribution of the assembled battery 2 based on the power supplied to the Peltier element 64. As the electric power supplied to the Peltier element 64 is larger, the heating capacity of the assembled battery 2 by the device temperature control device 1 is increased, and thus the temperature distribution of the assembled battery 2 is increased.

This embodiment can also provide the same operational effects as the above-described twenty-third and twenty-fourth embodiments.

(26th Embodiment)
A twenty-sixth embodiment will be described with reference to FIG. In the present embodiment, the configuration relating to the heating unit 61 is changed from the above-described twenty-third to twenty-fifth embodiments. The heating unit 61 of the present embodiment is a water-working fluid heat exchanger 93 and is configured such that warm water flows when the assembled battery 2 is warmed up.

The equipment temperature control device 1 of the present embodiment uses a cooling water circuit 9. The cooling water circuit 9 has a water pump 91, a hot water heater 96, a water-working fluid heat exchanger 93, and a cooling water pipe 94 connecting them. Water flows through the cooling water circuit 9.

The water pump 91 pumps water and circulates water through the cooling water circuit 9 as shown by an arrow WF in FIG. The hot water heater 96 can heat the water flowing through the cooling water circuit 9 to make the water warm. The hot water flowing out from the hot water heater 96 flows into the water-working fluid heat exchanger 93. The water-working fluid heat exchanger 93 is a heat exchanger that exchanges heat between the working fluid flowing through the fluid passage 60 of the device temperature control apparatus 1 and the hot water flowing through the cooling water circuit 9. That is, the water-working fluid heat exchanger 93 as the heating unit 61 of the present embodiment can heat the working fluid flowing through the fluid passage 60 of the device temperature control apparatus 1 with the hot water flowing through the cooling water circuit 9. is there.

In FIG. 45, each sensor connected to the control device 5 is illustrated. The control device 5 includes a battery temperature sensor 101, a working fluid temperature sensor 102, a water-working fluid temperature sensor 105 that detects a water temperature flowing through the water-working fluid heat exchanger 93, and a flow rate of water flowing through the cooling water circuit 9. A signal transmitted from the water circuit flow sensor 106 or the like that detects the above is input. In addition, the control device 5 includes a temperature distribution determination unit 110, a water pump energization time detection unit 115 that detects a time during which the water pump 91 is energized, and the like.

Here, in the present embodiment, the temperature distribution determination unit 110 included in the control device 5 determines the size of the temperature distribution of the assembled battery 2 based on a signal input from each sensor illustrated in FIG. Can be detected.

As a second method, the control device 5 calculates the water temperature flowing through the water-working fluid heat exchanger 93 detected by the water-working fluid temperature sensor 105 and the temperature of the assembled battery 2 detected by the battery temperature sensor 101. Based on the difference, the size of the temperature distribution of the assembled battery 2 is detected. As the temperature of the water flowing through the water-working fluid heat exchanger 93 (that is, the temperature of the hot water) is higher than the temperature of the assembled battery 2, the heating capacity of the assembled battery 2 is larger, and the temperature distribution of the assembled battery 2 becomes larger.

As a third method, the control device 5, in addition to the difference between the water temperature flowing through the water-working fluid heat exchanger 93 and the temperature of the assembled battery 2, further, based on the flow rate of water flowing through the cooling water circuit 9, The magnitude of the temperature distribution of the assembled battery 2 is detected. The water temperature flowing through the water-working fluid heat exchanger 93 is detected by a water-working fluid temperature sensor 105. The temperature of the assembled battery 2 is detected by the battery temperature sensor 101. The flow rate of water flowing through the cooling water circuit 9 is detected by the water circuit flow rate sensor 106. As the flow rate of water flowing through the cooling water circuit 9 increases, the heating capacity of the assembled battery 2 increases, so that the temperature distribution of the assembled battery 2 increases. On the other hand, the smaller the flow rate of the water flowing through the cooling water circuit 9, the smaller the temperature distribution of the assembled battery 2.

As a fourth method, the control device 5 determines the magnitude of the temperature distribution of the assembled battery 2 based on the difference between the water temperature flowing through the water-working fluid heat exchanger 93 and the temperature of the working fluid circulating in the thermosiphon circuit. Is detected. The temperature of the water flowing through the water-working fluid heat exchanger 93 is detected by the control device 5 by a water-working fluid temperature sensor 105. The temperature of the working fluid circulating through the thermosiphon circuit is detected by the working fluid temperature sensor 102. The higher the water temperature flowing through the water-working fluid heat exchanger 93 with respect to the temperature of the working fluid circulating in the thermosiphon circuit, the greater the heating capacity of the assembled battery 2, so the temperature distribution of the assembled battery 2 increases.

As a fifth method, the control device 5 detects the size of the temperature distribution of the assembled battery 2 based on the time during which the heating unit 61 is continuously operating. The time during which the heating unit 61 is continuously operating is the continuous energization on time of the water pump 91 detected by the water pump energization time detection unit 115. The longer the time that the water pump 91 is operating continuously, the greater the temperature distribution of the assembled battery 2. On the other hand, the longer the time during which the water pump 91 is continuously stopped, the smaller the temperature distribution of the assembled battery 2 becomes.

In addition, in the warm-up control process performed by the control device 5 of the present embodiment, the decrease in the heating capacity of the heating unit 61 performed by the control device 5 when the temperature distribution of the assembled battery 2 becomes larger is specifically described. This is performed by reducing the flow rate of the water pump 91 or reducing the heating capacity of the hot water heater 96. The operation stop of the heating unit 61 performed by the control device 5 when the temperature distribution of the assembled battery 2 becomes larger is specifically performed by operation stop of the water pump 91 or the like.

This embodiment can also provide the same operational effects as the above-described twenty-third to twenty-fifth embodiments.

(27th Embodiment)
A twenty-seventh embodiment will be described with reference to FIGS. 46 and 47. FIG. In the present embodiment, the configuration relating to the heating unit 61 is changed from the above-described twenty-third to twenty-sixth embodiments. The heating unit 61 of the present embodiment is a refrigerant-working fluid heat exchanger 200 and is configured such that a high-temperature refrigerant flows when the assembled battery 2 is warmed up. In FIG. 46, in order to prevent the drawing from becoming complicated, the signal lines connecting the control device 5 and each device, the control device 5 and sensors are omitted. The configurations of the control device 5 and sensors are shown in FIG.

The device temperature control apparatus 1 of the present embodiment uses a heat pump cycle 201. The heat pump cycle 201 includes a compressor 202, an indoor condenser 203, a first expansion valve 204, an outdoor unit 205, a check valve 206, a second expansion valve 207, an evaporator 208, an accumulator 209, and a refrigerant pipe connecting them. ing.

A bypass pipe 220 connects a first branch portion 211 provided between the outdoor unit 205 and the check valve 206 and a second branch portion 212 provided between the evaporator 208 and the accumulator 209. A first solenoid valve 221 is provided in the bypass pipe 220, and a second solenoid valve 222 is provided in the refrigerant pipe connecting the check valve 206 and the second expansion valve 207.

A first pipe 231 and a second pipe 232 for supplying the refrigerant to the refrigerant-working fluid heat exchanger 200 are connected to the refrigerant-working fluid heat exchanger 200 as the heating unit 61. One end of the first pipe 231 is connected to the refrigerant-working fluid heat exchanger 200, and the other end is a third branch 213 provided in the middle of the refrigerant pipe connecting the check valve 206 and the second electromagnetic valve 222. It is connected to the. A pipe 243 extending from a first three-way valve 241 provided between the indoor condenser 203 and the first expansion valve 204 is connected to the fourth branch part 214 provided in the middle of the first pipe 231. In the middle of the first pipe 231, a third expansion valve 233 is provided between the fourth branch portion 214 and the refrigerant-working fluid heat exchanger 200. A third electromagnetic valve 223 is provided in the middle of the first pipe 231 between the fourth branch portion 214 and the third branch portion 213.

On the other hand, the second pipe 232 has one end connected to the refrigerant-working fluid heat exchanger 200 and the other end connected to the evaporator 208 and the second branch part 212. The fifth branch part 215 provided in the middle of the refrigerant pipe. It is connected to the. A second three-way valve 242 is provided in the middle of the second pipe 232. A pipe 244 extending from the second three-way valve 242 is connected to a sixth branch 216 provided between the first three-way valve 241 and the first expansion valve 204.

The indoor condenser 203 and the evaporator 208 included in the heat pump cycle 201 constitute a part of an HVAC (Heating, “Ventilation” and “Air-Conditioning”) unit 250 for air conditioning in the vehicle interior. The HVAC unit 250 cools the wind flowing in the ventilation path in the air conditioning case 252 by the air conditioning blower 251 by the evaporator 208 and heats it by the indoor condenser 203 to blow out the conditioned air into the vehicle interior. The HVAC unit 250 has an air mix door 253 between the evaporator 208 and the indoor condenser 203. Note that the HVAC unit 250 may include a heater core 254.

<Operation during warm-up>
In FIG. 46, the flow of the working fluid and the refrigerant when the device temperature control device 1 warms up the assembled battery 2 is indicated by solid and broken arrows. When the assembled battery 2 is warmed up, the control device 5 switches the first three-way valve 241 so that a part of the refrigerant flows from the indoor condenser 203 to the fourth branch part 214, and the second three-way valve 242 is connected to the second pipe by the refrigerant. It switches so that it may flow from 232 to the 6th branch part 216. FIG. In addition, the control device 5 throttles the first expansion valve 204, opens the first electromagnetic valve 221, closes the second electromagnetic valve 222 and the third electromagnetic valve 223, and opens the third expansion valve 233 or an appropriate opening degree. The compressor 202 is turned on.

Thereby, the refrigerant discharged from the compressor 202 circulates in the heat pump cycle 201 in the order of the indoor condenser 203 of the heat pump cycle 201 → the first expansion valve 204 → the outdoor unit 205 → the first electromagnetic valve 221 → the accumulator 209 → the compressor 202. Further, a part of the refrigerant circulating in the heat pump cycle 201 is transferred from the first three-way valve 241 to the first pipe 231 → the third expansion valve 233 → the refrigerant-working fluid heat exchanger 200 → the second pipe 232 → the second three-way valve 242. → Flows through the sixth branch 216. The refrigerant flowing into the refrigerant-working fluid heat exchanger 200 from the first pipe 231 is depressurized by the third expansion valve 233 so that the temperature becomes an appropriate temperature for battery warm-up, and the fluid passage 60 of the device temperature adjustment device 1. The working fluid flowing through is heated. At this time, the working fluid flowing through the fluid passage 60 of the device temperature control apparatus 1 evaporates (that is, vaporizes) in the refrigerant-working fluid heat exchanger 200, flows upward, and passes from the upper connection portion 15 to the device heat exchanger 10. Supplied. Thereafter, the working fluid inside the equipment heat exchanger 10 dissipates heat to the battery cell 21 and condenses. Then, due to the head difference between the working fluid condensed in the equipment heat exchanger 10 and the working fluid in the fluid passage 60, the liquid-phase working fluid in the equipment heat exchanger 10 passes from the lower connection portion 16 through the fluid passage 60. Return to refrigerant-working fluid heat exchanger 200.

When heating the vehicle interior by the HVAC unit 250 and warming up the assembled battery 2 at the same time, there is a difference between the temperature required for the indoor condenser 203 and the temperature necessary for warming up the assembled battery 2, so that the third expansion Adjustment of the opening degree of the valve 233 is required. On the other hand, when only the warming up of the assembled battery 2 is performed without air conditioning the vehicle interior by the HVAC unit 250, the refrigerant discharge amount of the compressor 202 is adjusted to be the refrigerant amount necessary for warming up the assembled battery 2, The third expansion valve 233 may be opened.

In addition, in this embodiment, although the heat pump cycle 201 used for vehicle interior air conditioning was used, it is not restricted to this, A dedicated heat pump cycle is provided in the heating part 61 of the apparatus temperature control apparatus 1 separated from vehicle interior air conditioning. It may be used.

In the present embodiment, the working fluid flowing through the fluid passage 60 of the device temperature control apparatus 1 can be cooled by the refrigerant flowing through the refrigerant-working fluid heat exchanger 200 using the heat pump cycle 201. The description is omitted in this specification.

47, each sensor connected to the control device 5 is illustrated. Signals transmitted from the battery temperature sensor 101, the working fluid temperature sensor 102, the refrigerant temperature sensor 107, the refrigerant flow rate sensor 108, and the like are input to the control device 5. The refrigerant temperature sensor 107 detects the temperature of the refrigerant flowing through the refrigerant-working fluid heat exchanger 200. The refrigerant flow rate sensor 108 detects the flow rate of the refrigerant flowing through the heat pump cycle 201. Further, the control device 5 includes a temperature distribution determination unit 110, a compressor operation time detection unit 116, a compressor rotation speed detection unit 117, a refrigerant circulation time detection unit 118, and the like. The compressor operation time detection unit 116 detects the operation time of the compressor 202. The compressor rotation speed detection unit 117 detects the rotation speed of the compressor 202. The refrigerant circulation time detection unit 118 detects the refrigerant circulation time of the refrigerant-working fluid heat exchanger 200.

Here, in the present embodiment, the temperature distribution determination unit 110 included in the control device 5 determines the size of the temperature distribution of the assembled battery 2 based on the signal input from each sensor shown in FIG. Can be detected.

As a second method, the control device 5 determines the difference between the temperature of the refrigerant flowing through the refrigerant-working fluid heat exchanger 200 detected by the refrigerant temperature sensor 107 and the temperature of the assembled battery 2 detected by the battery temperature sensor 101. Based on the above, the magnitude of the temperature distribution of the assembled battery 2 is detected. The higher the temperature of the refrigerant flowing through the refrigerant-working fluid heat exchanger 200 with respect to the temperature of the assembled battery 2, the greater the heating capacity of the assembled battery 2, so the temperature distribution of the assembled battery 2 increases.

As a third method, the control device 5, based on the difference between the temperature of the refrigerant flowing through the refrigerant-working fluid heat exchanger 200 and the temperature of the assembled battery 2, and further based on the flow rate of the refrigerant flowing through the heat pump cycle, The magnitude of the temperature distribution of the assembled battery 2 is detected. The refrigerant temperature flowing through the refrigerant-working fluid heat exchanger 200 is detected by a refrigerant temperature sensor 107. The temperature of the assembled battery 2 is detected by the battery temperature sensor 101. The flow rate of the refrigerant flowing through the heat pump cycle is detected by the refrigerant flow rate sensor 108. As the flow rate of the refrigerant flowing through the heat pump cycle increases, the heating capacity of the assembled battery 2 increases, so that the temperature distribution of the assembled battery 2 increases. On the other hand, the smaller the flow rate of the refrigerant flowing through the heat pump cycle, the smaller the temperature distribution of the assembled battery 2.

As a fourth method, the control device 5 determines the temperature distribution of the assembled battery 2 based on the difference between the temperature of the refrigerant flowing through the refrigerant-working fluid heat exchanger 200 and the temperature of the working fluid circulating in the thermosiphon circuit. Detect the size. The refrigerant temperature flowing through the refrigerant-working fluid heat exchanger 200 is detected by a refrigerant temperature sensor 107. The temperature of the working fluid circulating through the thermosiphon circuit is detected by the working fluid temperature sensor 102. The higher the temperature of the refrigerant flowing through the refrigerant-working fluid heat exchanger 200 with respect to the temperature of the working fluid circulating in the thermosiphon circuit, the greater the heating capacity of the assembled battery 2, and thus the temperature distribution of the assembled battery 2 becomes larger.

As a fifth method, the control device 5 detects the size of the temperature distribution of the assembled battery 2 based on the time during which the heating unit 61 is continuously operating. The time during which the heating unit 61 operates continuously is the continuous operation time of the compressor 202 detected by the compressor operation time detection unit 116. The longer the time during which the compressor 202 is operating continuously, the greater the temperature distribution of the assembled battery 2. On the other hand, the longer the time during which the compressor 202 is continuously stopped, the smaller the temperature distribution of the battery pack 2 becomes.

As a sixth method, the control device 5 detects the size of the temperature distribution of the assembled battery 2 based on the rotation speed of the compressor 202. The rotation speed of the compressor 202 is detected by the compressor rotation speed detector 117. The higher the rotation speed of the compressor 202, the larger the temperature distribution of the assembled battery 2. On the other hand, the lower the rotation speed of the compressor 202, the smaller the temperature distribution of the assembled battery 2.

As a seventh method, the control device 5 detects the magnitude of the temperature distribution of the assembled battery 2 based on the circulation time of the refrigerant flowing in the refrigerant-working fluid heat exchanger 200. The refrigerant circulation time flowing through the refrigerant-working fluid heat exchanger 200 is detected by the refrigerant circulation time detection unit 118. The longer the circulation time of the refrigerant flowing through the refrigerant-working fluid heat exchanger 200, the greater the temperature distribution of the assembled battery 2. On the other hand, the longer the distribution interruption time of the refrigerant flowing through the refrigerant-working fluid heat exchanger 200, the smaller the temperature distribution of the assembled battery 2.

Note that, in the warm-up control process performed by the control device 5 of the present embodiment, the decrease in the heating capacity of the heating unit 61 performed by the control device 5 when the temperature distribution of the assembled battery 2 becomes larger is specifically a compressor. This is performed by reducing the number of revolutions 202 or the like. Further, when the temperature distribution of the assembled battery 2 becomes large, the operation of the heating unit 61 performed by the control device 5 is specifically performed by stopping the operation of the compressor 202 or the like.

This embodiment can achieve the same effects as the above-described twenty-third to twenty-sixth embodiments.

(Twenty-eighth embodiment)
A twenty-eighth embodiment will be described with reference to FIGS. 48 and 49. FIG. In the twenty-eighth embodiment, the device temperature control device 1 includes a device heat exchanger 10, an upper connection portion 15, a lower connection portion 16, a fluid passage 60, and a heat supply member 100. The equipment heat exchanger 10 may be configured by a single container 17 as described in the twenty-first embodiment. Alternatively, the equipment heat exchanger 10 includes the upper tank 11, the lower tank 12, and the heat exchange unit 13 having a plurality of tubes as described in the embodiments other than the twenty-first embodiment. Also good.

The upper connection part 15 is provided in the position which becomes the gravity direction upper side among the heat exchangers 10 for apparatuses, and the lower connection part 16 is provided in the position which becomes the gravity direction lower side among the heat exchangers 10 for apparatuses. Each of the upper connection portion 15 and the lower connection portion 16 is a pipe connection portion for allowing the working fluid to flow into the equipment heat exchanger 10 or for causing the working fluid to flow out from the equipment heat exchanger 10.

The fluid passage 60 is connected so that the upper connection part 15 and the lower connection part 16 are connected. The heat supply member 100 provided in the fluid passage 60 is configured to selectively supply cold or warm heat to the working fluid flowing through the fluid passage 60. As the heat supply member 100, a water-working fluid heat exchanger, a refrigerant-working fluid heat exchanger, a Peltier element, or the like can be adopted as will be described in an embodiment described later. The heat supply member 100 is provided in the fluid passage 60 at a position in the height direction that straddles the height of the liquid level FL of the working fluid inside the heat exchanger for equipment 10. Therefore, the heat supply member 100 can supply cold heat to the vapor-phase working fluid flowing in the fluid passage 60 to condense the working fluid. The heat supply member 100 can also supply warm heat to the liquid-phase working fluid flowing in the fluid passage 60 to evaporate the working fluid.

Next, the operation of the device temperature control apparatus 1 according to the 28th embodiment will be described.

<Operation during cooling>
In FIG. 48, the flow of the working fluid when the device temperature control device 1 cools the assembled battery is indicated by solid-line arrows. 48 and 49 do not show the assembled battery. When the assembled battery is cooled, the heat supply member 100 supplies cold heat to the working fluid flowing through the fluid passage 60. Thus, when the working fluid in the fluid passage 60 is condensed, the liquid phase in the fluid passage 60 is caused by a head difference between the liquid working fluid condensed in the fluid passage 60 and the liquid working fluid in the equipment heat exchanger 10. The working fluid flows into the equipment heat exchanger 10 from the lower connecting portion 16. The working fluid in the equipment heat exchanger 10 evaporates by absorbing heat from each battery cell 21 constituting the assembled battery. In this process, the battery cell 21 is cooled by the latent heat of vaporization of the working fluid. Thereafter, the working fluid that has become a gas phase flows from the upper connecting portion 15 to the fluid passage 60.

The flow of the working fluid during cooling of the assembled battery is as follows: fluid passage 60 → lower connection portion 16 → equipment heat exchanger 10 → upper connection portion 15 → fluid passage 60. That is, a loop-shaped flow path that passes through the equipment heat exchanger 10 and the fluid passage 60 is formed.

<Operation during warm-up>
In FIG. 49, the flow of the working fluid when the device temperature adjustment device 1 warms up the assembled battery is indicated by solid arrows. When the assembled battery is warmed up, the heat supply member 100 supplies heat to the working fluid flowing through the fluid passage 60. As a result, the working fluid in the fluid passage 60 evaporates and flows into the equipment heat exchanger 10 from the upper connection portion 15. The gas phase working fluid is dissipated and condensed in each battery cell constituting the assembled battery inside the equipment heat exchanger 10. In this process, the battery cell is warmed up. Then, due to the head difference between the liquid-phase working fluid condensed in the equipment heat exchanger 10 and the liquid-phase working fluid in the fluid passage 60, the liquid-phase working fluid in the equipment heat exchanger 10 becomes the lower connection portion 16. To the fluid passage 60.

The flow of the working fluid when the assembled battery is warmed up is fluid passage 60 → upper connection portion 15 → equipment heat exchanger 10 → lower connection portion 16 → fluid passage 60. That is, a loop-shaped flow path that passes through the equipment heat exchanger 10 and the fluid passage 60 is formed.

The apparatus temperature control apparatus 1 according to the twenty-eighth embodiment described above has the following operational effects.

The apparatus temperature control apparatus 1 according to the twenty-eighth embodiment performs both warm-up and cooling of the assembled battery by selectively supplying cold or hot heat to the working fluid flowing through the fluid passage 60 by the heat supply member 100. It is possible. Therefore, this equipment temperature control device 1 can achieve downsizing, light weight, and low cost by reducing the number of parts and simplifying the configuration of piping and the like.

In addition, as in the first to twenty-seventh embodiments, the device temperature control device 1 also supplies the working fluid in the fluid passage 60 outside the device heat exchanger 10 to the heat supply member when the assembled battery is warmed up. It is the structure heated by 100. Therefore, since the vapor of the working fluid vaporized in the fluid passage 60 is supplied to the equipment heat exchanger 10, variation in the vapor temperature of the working fluid is suppressed inside the equipment heat exchanger 10. Therefore, this apparatus temperature control apparatus 1 can warm up an assembled battery uniformly. As a result, it is possible to prevent deterioration of the input / output characteristics of the assembled battery and to suppress deterioration and breakage of the assembled battery.

Furthermore, in this equipment temperature control device 1, the flow path through which the working fluid flows is formed in a loop shape both when the assembled battery is cooled and when it is warmed up. Therefore, it is possible to prevent the liquid-phase working fluid and the gas-phase working fluid from flowing in the same flow path. Therefore, this apparatus temperature control apparatus 1 can perform warming up and cooling of an assembled battery with high efficiency by circulating a working fluid smoothly.

In addition, the device temperature control device 1 secures a space for providing the heat supply member 100 in the height direction of the fluid passage 60 that connects the upper connection portion 15 and the lower connection portion 16 of the device heat exchanger 10. Therefore, the necessity to provide piping and parts below the equipment heat exchanger 10 is reduced. Therefore, this equipment temperature control apparatus 1 can improve the mounting property to a vehicle.

(Twenty-ninth embodiment)
The 29th embodiment will be described with reference to FIGS. 50 and 51. FIG. The twenty-ninth embodiment is different from the twenty-eighth embodiment in the configuration related to the heat supply member 100.

The heat supply member 100 of the present embodiment is a water-working fluid heat exchanger 93 and is configured to be selectively switched so that cold water flows when the assembled battery 2 is cooled and hot water flows when the assembled battery 2 is warmed up. Has been. The equipment heat exchanger 10 of the present embodiment includes an upper tank 11, a lower tank 12, and a heat exchange unit 13 having a plurality of tubes.

The equipment temperature control device 1 of the present embodiment uses a cooling water circuit 9. The cooling water circuit 9 includes a water pump 91, a cooling water radiator 92, a hot water heater 96, a water-working fluid heat exchanger 93, and a cooling water pipe 94 connecting them. Cooling water flows through the cooling water circuit 9.

The water pump 91 pumps the cooling water and circulates the cooling water in the cooling water circuit 9. The cooling water radiator 92 of the cooling water circuit 9 is a chiller configured integrally with the evaporator of the refrigeration cycle 8, and heat that exchanges heat between the cooling water flowing through the cooling water circuit 9 and the low-pressure refrigerant flowing through the refrigeration cycle 8. It is an exchanger. Therefore, the cooling water radiator 92 can cool the cooling water flowing through the flow path of the cooling water radiator 92 by heat exchange with the refrigerant flowing through the evaporator constituting the refrigeration cycle 8. The cooling water flowing out from the cooling water radiator 92 flows into the water-working fluid heat exchanger 93 via the hot water heater 96.

The water-working fluid heat exchanger 93 is a heat exchanger that exchanges heat between the working fluid flowing through the fluid passage 60 of the device temperature control apparatus 1 and the cooling water flowing through the cooling water circuit 9. The heat supply member 100 of the device temperature control device 1 of the present embodiment is a water-working fluid heat exchanger 93 and can cool and heat the working fluid flowing through the fluid passage 60 of the device temperature control device 1. .

<Operation during cooling>
In FIG. 50, the flow of the working fluid and the cooling water when the device temperature control device 1 cools the assembled battery 2 is indicated by solid and broken arrows. When the assembled battery 2 is cooled, the control device 5 turns on the compressor 81 of the refrigeration cycle 8, opens the first flow rate regulating unit 83, turns off the hot water heater 96, and turns on the water pump 91. Thereby, the cooling water flowing through the cooling water circuit 9 is cooled by the cooling water radiator 92 integrally formed with the evaporator of the refrigeration cycle 8, and flows into the water-working fluid heat exchanger 93 through the cooling water circuit 9. Supplied. Therefore, the working fluid flowing through the fluid passage 60 of the device temperature control apparatus 1 is condensed (that is, liquefied) in the water-working fluid heat exchanger 93, and the working fluid in the device heat exchanger 10 and the working fluid in the fluid passage 60 are used. Is supplied from the lower connection portion 16 to the equipment heat exchanger 10. Thereafter, the working fluid inside the device heat exchanger 10 absorbs heat from the battery cells 21 and evaporates, and returns from the upper connection portion 15 to the water-working fluid heat exchanger 93 through the fluid passage 60.

<Operation during warm-up>
In FIG. 51, the flow of the working fluid and the cooling water when the device temperature control device 1 warms up the assembled battery 2 is indicated by solid and broken arrows. When the assembled battery 2 is warmed up, the control device 5 turns off the compressor 81 of the refrigeration cycle 8, turns on the hot water heater 96, and turns on the water pump 91. Thereby, the cooling water flowing through the cooling water circuit 9 is heated by the hot water heater 96, flows through the cooling water circuit 9, and is supplied to the water-working fluid heat exchanger 93. At this time, the working fluid flowing through the fluid passage 60 of the device temperature control apparatus 1 evaporates (that is, vaporizes) in the water-working fluid heat exchanger 93, flows upward, and passes from the upper connection portion 15 to the device heat exchanger 10. Supplied. Thereafter, the working fluid in the gas phase inside the equipment heat exchanger 10 dissipates heat to the battery cell 21 and condenses. Then, due to the head difference between the working fluid condensed in the equipment heat exchanger 10 and the working fluid in the fluid passage 60, the liquid-phase working fluid in the equipment heat exchanger 10 passes from the lower connection portion 16 through the fluid passage 60. Return to water-working fluid heat exchanger 93.

In the twenty-ninth embodiment described above, the device temperature control apparatus 1 can use the water-working fluid heat exchanger 93 as the heat supply member 100 that selectively supplies cold heat or heat. According to this, it is possible to set the temperature of the low-pressure refrigerant flowing through the refrigeration cycle 8 and the temperature of the cooling water flowing through the cooling water circuit 9 to different temperatures. Therefore, the device temperature control device 1 can appropriately adjust the temperature of the low-pressure refrigerant flowing through the refrigeration cycle 8 and the temperature of the cooling water flowing through the cooling water circuit 9. Therefore, the amount of cooling heat supplied from the cooling water flowing through the cooling water circuit 9 to the working fluid flowing through the condenser 30 of the device temperature control device 1 is adjusted, and the cooling capacity of the battery pack 2 by the device temperature control device 1 is adjusted. Can be appropriately adjusted according to the amount of heat generated.

In addition, the device temperature control apparatus 1 selectively supplies cold heat or heat to the working fluid flowing through the fluid passage 60 by the water-working fluid heat exchanger 93 as the heat supply member 100, thereby Both warm-up and cooling can be performed. Therefore, this equipment temperature control device 1 can achieve downsizing, light weight, and low cost by reducing the number of parts and simplifying the configuration of piping and the like.

In the 29th embodiment described above, the control device 5 turns off the compressor 81 of the refrigeration cycle 8 when the assembled battery 2 is warmed up. On the other hand, as a modification, when the low pressure side heat exchanger 88 of the refrigeration cycle 8 is to be used for vehicle interior air conditioning, the cooling water is dissipated by turning on the compressor 81 and closing the first flow rate regulating portion 83. The refrigerant supply to the container 92 may be stopped.

Further, the means for heating the cooling water flowing through the cooling water circuit 9 is not limited to the hot water heater 96 described above, and a heat pump, waste heat from on-vehicle equipment, or the like may be used.

(Thirty Embodiment)
A thirtieth embodiment will be described with reference to FIGS. 52 and 53. The 30th embodiment is a modification of the configuration relating to the heat supply member 100 to the 28th and 29th embodiments. 52 and 53, the control device 5 and signal lines that connect the control device 5 and each device are omitted in order to prevent the drawings from becoming complicated.

The heat supply member 100 of the present embodiment is a refrigerant-working fluid heat exchanger 200 and is selectively configured so that a low-temperature and low-pressure refrigerant flows when the assembled battery 2 is cooled and a high-temperature and high-pressure refrigerant flows when the assembled battery 2 is warmed up. It is comprised so that it can switch to. The equipment heat exchanger 10 according to the present embodiment includes an upper tank 11, a lower tank 12, a heat exchange unit 13 having a plurality of tubes, and the like.

The refrigerant-working fluid heat exchanger 200 as the heat supply member 100 is connected to a first pipe 231 and a second pipe 232 for flowing the refrigerant through the refrigerant-working fluid heat exchanger 200. One end of the first pipe 231 is connected to the refrigerant-working fluid heat exchanger 200, and the other end is a third branch 213 provided in the middle of the refrigerant pipe connecting the check valve 206 and the second electromagnetic valve 222. It is connected to the. A pipe 243 extending from a first three-way valve 241 provided between the indoor condenser 203 and the first expansion valve 204 is connected to the fourth branch part 214 provided in the middle of the first pipe 231. In the middle of the first pipe 231, a third expansion valve 233 is provided between the fourth branch portion 214 and the refrigerant-working fluid heat exchanger 200. A third electromagnetic valve 223 is provided in the middle of the first pipe 231 between the fourth branch portion 214 and the third branch portion 213.

The indoor condenser 203 and the evaporator 208 included in the heat pump cycle 201 constitute a part of the HVAC unit 250 for air conditioning in the vehicle interior. The HVAC unit cools the wind flowing in the ventilation path in the air conditioning case 252 by the air conditioning blower 251 by the evaporator 208 and heats it by the indoor condenser 203 to blow the conditioned air into the vehicle interior. The HVAC unit 250 has an air mix door 253 between the evaporator 208 and the indoor condenser 203. Note that the HVAC unit 250 may include a heater core 254.

<Operation during cooling>
In FIG. 52, the flow of the working fluid and the refrigerant when the device temperature control device 1 cools the assembled battery 2 is indicated by solid and broken arrows. When the battery pack 2 is cooled, the control device 5 switches the first three-way valve 241 so that the refrigerant flows from the indoor condenser 203 to the first expansion valve 204, and the second three-way valve 242 uses the refrigerant-working fluid heat exchanger. Switching from 200 to the fifth branching section 215 is performed. Further, the control device 5 opens the first expansion valve 204, closes the first electromagnetic valve 221, opens the second electromagnetic valve 222 and the third electromagnetic valve 223, throttles the third expansion valve 233, and turns on the compressor 202. .

As a result, the refrigerant discharged from the compressor 202 is converted into the indoor condenser 203 of the heat pump cycle 201 → the first expansion valve 204 → the outdoor unit 205 → the check valve 206 → the second electromagnetic valve 222 → the second expansion valve 207 → the evaporator 208 → The heat pump cycle 201 is circulated in the order of accumulator 209 → compressor 202. Further, a part of the refrigerant circulating through the heat pump cycle 201 is supplied from the third branch 213 to the first pipe 231 → the third electromagnetic valve 223 → the third expansion valve 233 → the refrigerant-working fluid heat exchanger 200 → the second pipe 232. → Flows through the fifth branch 215. The refrigerant flowing into the refrigerant-working fluid heat exchanger 200 from the first pipe 231 is depressurized by the third expansion valve 233 to become low temperature and low pressure, and cools the working fluid flowing through the fluid passage 60 of the device temperature control device 1. At this time, the working fluid flowing through the fluid passage 60 is condensed (that is, liquefied) by the refrigerant-working fluid heat exchanger 200, and the head difference between the working fluid in the fluid passage 60 and the working fluid in the equipment heat exchanger 10. Thus, the heat is supplied from the lower connection portion 16 to the equipment heat exchanger 10. Thereafter, the working fluid inside the device heat exchanger 10 absorbs heat from the battery cells 21 and evaporates, and returns to the refrigerant-working fluid heat exchanger 200 from the upper connection portion 15 through the fluid passage 60.

<Operation during warm-up>
In FIG. 53, the flow of the working fluid and the refrigerant when the device temperature control device 1 warms up the assembled battery 2 is indicated by solid and broken arrows. When the assembled battery 2 is warmed up, the control device 5 switches the first three-way valve 241 so that a part of the refrigerant flows from the indoor condenser 203 to the fourth branch part 214, and the second three-way valve 242 is connected to the second pipe by the refrigerant. It switches so that it may flow from 232 to the 6th branch part 216. FIG. In addition, the control device 5 throttles the first expansion valve 204, opens the first electromagnetic valve 221, closes the second electromagnetic valve 222 and the third electromagnetic valve 223, and opens the third expansion valve 233 or an appropriate opening degree. The compressor 202 is turned on.

In the thirtieth embodiment described above, the device temperature adjustment device 1 can use the refrigerant-working fluid heat exchanger 200 as the heat supply member 100 that selectively supplies cold or hot heat. According to this, by adjusting the amount of refrigerant circulating in the heat pump cycle 201 or the amount of refrigerant flowing from the heat pump cycle 201 to the refrigerant-working fluid heat exchanger 200, the working fluid flowing through the fluid passage 60 of the device temperature control device 1 is adjusted. It is possible to adjust the amount of heat supplied. Also, the amount of heat supplied to the working fluid flowing through the fluid passage 60 of the device temperature control device 1 can be adjusted also by adjusting the opening of the third expansion valve 233. Therefore, in the thirtieth embodiment, the cooling capacity and warming power of the assembled battery 2 by the device temperature control device 1 can be appropriately adjusted according to the amount of heat generated by the assembled battery 2.

Moreover, the apparatus temperature control apparatus 1 can perform both warming up and cooling of the assembled battery 2 by selectively supplying cold heat or warm heat to the working fluid flowing through the fluid passage 60 by the heat supply member 100. Is possible. Therefore, this equipment temperature control device 1 can achieve downsizing, light weight, and low cost by reducing the number of parts and simplifying the configuration of piping and the like.

In the 30th embodiment described above, the heat pump cycle 201 used for air conditioning in the vehicle interior is used. However, the heat pump cycle 201 is not limited thereto, and is dedicated to the heat supply member 100 of the device temperature control device 1 separated from the air conditioning in the vehicle interior. The heat pump cycle may be used.

(Thirty-first embodiment)
A thirty-first embodiment will be described with reference to FIGS. 54 and 55. In the thirty-first embodiment, the configuration related to the heat supply member 100 is changed with respect to the twenty-ninth embodiment. The heat supply member 100 of this embodiment includes a water-working fluid heat exchange unit 1010 and a refrigerant-working fluid heat exchange unit 1020. In the heat supply member 100, the water-working fluid heat exchange unit 1010 is arranged on the lower side in the gravity direction. On the other hand, in the heat supply member 100, the refrigerant-working fluid heat exchange unit 1020 is disposed on the upper side in the gravity direction.

The water-working fluid heat exchange unit 1010 is configured so that warm water flows when the assembled battery 2 is warmed up. That is, the water-working fluid heat exchange unit 1010 is an example of a heat supply mechanism that can supply heat to the working fluid flowing through the fluid passage 60. On the other hand, the refrigerant-working fluid heat exchange unit 1020 is configured such that a low-temperature and low-pressure refrigerant flows when the assembled battery 2 is cooled. That is, the refrigerant-working fluid heat exchange unit 1020 is an example of a cold supply mechanism that can supply cold to the working fluid flowing through the fluid passage 60.

<Operation during cooling>
In FIG. 54, the flow of the working fluid and the refrigerant when the device temperature control device 1 cools the assembled battery 2 is indicated by solid and broken arrows. When the assembled battery 2 is cooled, the control device 5 turns on the compressor 81 of the refrigeration cycle 8, opens the first flow rate restricting unit 83, and turns off the hot water heater 96 and the water pump 91. Thereby, the refrigerant of the refrigeration cycle 8 flows in the order of the compressor 81 → the high-pressure side heat exchanger 82 → the first flow rate restricting unit 83 → the first expansion valve 84 → the refrigerant-working fluid heat exchanging unit 1020 → the compressor 81. Therefore, the refrigerant radiated and condensed by the high-pressure side heat exchanger 82 is decompressed by the first expansion valve 84, becomes low temperature and low pressure, and is supplied to the refrigerant / working fluid heat exchange unit 1020 of the heat supply member 100. At this time, the gas phase working fluid flowing through the fluid passage 60 of the device temperature control apparatus 1 is condensed (ie, liquefied) by the refrigerant-working fluid heat exchange unit 1020 of the heat supply member 100. And it supplies to the heat exchanger 10 for apparatuses from the lower connection part 16 by the head difference of the working fluid in the heat exchanger 10 for apparatuses, and the working fluid of the fluid channel | path 60. FIG. Thereafter, the working fluid inside the equipment heat exchanger 10 absorbs heat from the battery cells 21 and evaporates, and returns to the heat supply member 100 from the upper connection portion 15 through the fluid passage 60.

<Operation during warm-up>
In FIG. 55, the flow of the working fluid and the cooling water when the device temperature control device 1 warms up the assembled battery 2 is indicated by solid and broken arrows. When the assembled battery 2 is warmed up, the control device 5 turns off the compressor 81 of the refrigeration cycle 8 and turns on the hot water heater 96 and the water pump 91. Accordingly, the high-temperature cooling water heated by the hot water heater 96 flows through the cooling water circuit 9 and is supplied to the water-working fluid heat exchange unit 1010 of the heat supply member 100. At this time, the liquid-phase working fluid flowing through the fluid passage 60 of the device temperature control device 1 evaporates (that is, vaporizes) in the water-working fluid heat exchange unit 1010 of the heat supply member 100, and heats the device from the upper connection unit 15. It is supplied to the exchanger 10. Thereafter, the working fluid in the gas phase inside the equipment heat exchanger 10 dissipates heat to the battery cell 21 and condenses. Then, due to the head difference between the working fluid condensed in the equipment heat exchanger 10 and the working fluid in the fluid passage 60, the liquid-phase working fluid in the equipment heat exchanger 10 passes from the lower connection portion 16 through the fluid passage 60. Return to the heat supply member 100.

In the thirty-first embodiment described above, the device temperature control apparatus 1 uses the water-working fluid heat exchange unit 1010 and the refrigerant-working fluid heat exchange unit 1020 in combination as the heat supply member 100. In the heat supply member 100, the water-working fluid heat exchange unit 1010 that functions as a warm heat supply mechanism is disposed on the lower side in the gravity direction, and the refrigerant-working fluid heat exchange unit 1020 that functions as a cold heat supply mechanism is on the upper side in the gravity direction. Has been placed.

Since the heat supply member 100 is provided in the fluid passage 60 at a position in the height direction across the height of the liquid level FL of the working fluid inside the equipment heat exchanger 10, Then, the upper side is a gas phase working fluid, and the lower side is a liquid phase working fluid. Therefore, at the time of cooling the assembled battery 2, by supplying cold heat above the heat supply member 100, cold heat can be reliably supplied to the vapor-phase working fluid, and condensation of the working fluid can be promoted. Further, when the assembled battery 2 is warmed up, by supplying warm heat below the heat supply member 100, warm heat can be reliably supplied to the liquid-phase working fluid, and evaporation of the working fluid can be promoted.

(Thirty-second embodiment)
A thirty-second embodiment will be described with reference to FIGS. 56 and 57. FIG. In the thirty-second embodiment, the configuration relating to the heat supply member 100 is changed. The heat supply member 100 of this embodiment uses a pneumatic heat exchanger 1030. When the assembled battery 2 is cooled, the pneumatic heat exchanger 1030 is supplied with cold air to the upper part of the heat supply member 100 in the direction of gravity, and when the assembled battery 2 is warmed up, the cold air is supplied to the lower part of the heat supply member 100 in the direction of gravity. It is comprised so that a warm air may be supplied to a site | part.

The air heat exchanger 1030 is disposed in the HVAC unit 250. An indoor capacitor 203 and an evaporator 208 are provided in the air conditioning case 252 of the HVAC unit 250. Note that a heater core may be installed instead of the indoor capacitor 203, or a heater core may be installed together with the indoor capacitor 203. A partition plate 255 for separating the air flow is provided between the indoor condenser 203 and the evaporator 208. An air conditioning blower 251 and a ventilation path switching door 256 are provided upstream of the indoor condenser 203 and the evaporator 208.

The air heat exchanger 1030 may be disposed outside the air conditioning case 252 of the HVAC unit 250. In that case, a duct is provided so that the wind passing through the indoor condenser 203 is supplied from the air conditioning case 252 to the pneumatic heat exchanger 1030, and the wind passing through the evaporator 208 is supplied from the air conditioning case 252 to the pneumatic heat exchanger 1030. As a result, a duct is provided.

<Operation during cooling>
In FIG. 56, the flow of the working fluid and the wind when the device temperature control device 1 cools the assembled battery 2 are indicated by solid and broken arrows. When the assembled battery 2 is cooled, the control device 5 blocks the wind flow on the indoor condenser 203 side by the ventilation path switching door 256 and allows the wind flow on the evaporator 208 side. As a result, wind flows in the air conditioning case 252 as indicated by an arrow AF1, and cold air is supplied to the pneumatic heat exchanger 1030 by the air cooled by the evaporator 208. At this time, the gas phase working fluid flowing through the fluid passage 60 of the device temperature control apparatus 1 is condensed (that is, liquefied) by the air heat exchanger 1030, and the working fluid in the device heat exchanger 10 and the fluid passage 60 Due to the head difference from the working fluid, the heat is supplied from the lower connection portion 16 to the equipment heat exchanger 10. Thereafter, the working fluid inside the equipment heat exchanger 10 absorbs heat from the battery cells 21 and evaporates, and returns to the pneumatic heat exchanger 1030 from the upper connection portion 15 through the fluid passage 60.

<Operation during warm-up>
In FIG. 57, the working fluid and the flow of wind when the device temperature control device 1 warms up the assembled battery 2 are indicated by solid and broken arrows. When the assembled battery 2 is warmed up, the control device 5 allows the air flow on the indoor condenser 203 side by the ventilation path switching door 256 and blocks the wind flow on the evaporator 208 side. As a result, wind flows in the air conditioning case 252 as indicated by an arrow AF2, and warm air is supplied to the pneumatic heat exchanger 1030 by the air heated by the indoor condenser 203. At this time, the liquid-phase working fluid flowing through the fluid passage 60 of the device temperature control apparatus 1 is evaporated (that is, vaporized) by the pneumatic heat exchanger 1030 and is supplied from the upper connection portion 15 to the device heat exchanger 10. . Thereafter, the working fluid in the gas phase inside the equipment heat exchanger 10 dissipates heat to the battery cell 21 and condenses. Then, due to the head difference between the working fluid condensed in the equipment heat exchanger 10 and the working fluid in the fluid passage 60, the liquid-phase working fluid in the equipment heat exchanger 10 passes from the lower connection portion 16 through the fluid passage 60. Return to pneumatic heat exchanger 1030.

In the thirty-second embodiment described above, the device temperature adjustment device 1 can use the pneumatic heat exchanger 1030 as the heat supply member 100. The pneumatic heat exchanger 1030 is configured such that warm heat is supplied to the lower part in the direction of gravity and cold heat is supplied to the upper part in the direction of gravity. Since the heat supply member 100 is provided in the fluid passage 60 at a position in the height direction across the height of the liquid level FL of the working fluid inside the equipment heat exchanger 10, Then, the upper side is a gas phase working fluid, and the lower side is a liquid phase working fluid. Therefore, at the time of cooling the assembled battery 2, by supplying cold heat above the pneumatic heat exchanger 1030, it is possible to reliably supply cold heat to the gas-phase working fluid and promote condensation of the working fluid. . In addition, when the assembled battery 2 is warmed up, the warm heat is supplied to the lower side of the pneumatic heat exchanger 1030 so that the warm heat is reliably supplied to the liquid-phase working fluid and the evaporation of the working fluid is promoted. it can.

(Thirty-third embodiment)
A thirty-third embodiment will be described. As shown in FIG. 58, the heat supply member 100 of this embodiment includes a thermoelectric element 1040. Specifically, the thermoelectric element is, for example, a Peltier element. Also in this configuration, the heat supply member 100 can selectively supply cold or warm heat to the working fluid flowing through the fluid passage 60.

(Thirty-fourth embodiment)
A thirty-fourth embodiment will be described. As shown in FIG. 59, in the thirty-fourth embodiment, a condenser 30, a liquid phase passage 40, and a gas phase passage 50 are added to the configuration described in the twenty-ninth embodiment. Since the configurations of the condenser 30, the liquid phase passage 40, and the gas phase passage 50 are the same as those described in the first embodiment, the description thereof is omitted.

In the thirty-fourth embodiment, cooling by the condenser 30 or cooling by the heat supply member 100 can be selected according to the cooling capacity required by the assembled battery 2 or the state of the vehicle. Thus, the first to thirty-fourth embodiments described above can be arbitrarily combined.

(Other embodiments)
The present disclosure is not limited to the above-described embodiment, and can be modified as appropriate. Further, the above embodiments are not irrelevant to each other, and can be combined as appropriate unless the combination is clearly impossible. In each of the above-described embodiments, it is needless to say that elements constituting the embodiment are not necessarily essential unless explicitly stated as essential and clearly considered essential in principle. Yes. Further, in each of the above embodiments, when numerical values such as the number, numerical value, quantity, range, etc. of the constituent elements of the embodiment are mentioned, it is clearly limited to a specific number when clearly indicated as essential and in principle. The number is not limited to the specific number except for the case. Further, in each of the above embodiments, when referring to the shape, positional relationship, etc. of the component, etc., the shape, unless otherwise specified and in principle limited to a specific shape, positional relationship, etc. It is not limited to the positional relationship or the like.

(1) In the above-described embodiment, the example in which the chlorofluorocarbon refrigerant is employed as the working fluid has been described. Other fluids such as propane and carbon dioxide may be employed as the working fluid.

(2) In the above-described embodiment, the example in which the electric heater is employed as the heating unit 61 has been described. For the heating unit 61, for example, a heat pump or a means capable of heating such as a Peltier element may be used. Further, the heating unit 61 may use waste heat of other in-vehicle heat generating devices such as SMR (system main relay).

(3) In the above-described embodiment, the example of the assembled battery 2 is shown as the target device that the device temperature control device 1 adjusts the temperature. The target device may be another device that needs to be cooled and warmed up, such as a motor, an inverter, or a charger.

(Summary)
According to the first aspect shown in part or all of the above-described embodiments, the device temperature adjustment device that adjusts the temperature of the target device by the phase change between the liquid phase and the gas phase of the working fluid is An exchanger, an upper connection portion, a lower connection portion, a condenser, a gas phase passage, a liquid phase passage, a fluid passage, a heating portion, and a control device are provided. The equipment heat exchanger is configured such that the target equipment and the working fluid can exchange heat so that the working fluid evaporates when the target equipment is cooled and the working fluid is condensed when the target equipment is warmed up. An upper connection part is provided in the site | part of the gravity direction upper side among the heat exchangers for apparatuses, and a working fluid flows in or out. A lower connection part is provided in the site | part below a gravity direction rather than an upper connection part among the heat exchangers for apparatuses, and a working fluid flows in or out. The condenser is disposed above the equipment heat exchanger in the direction of gravity, and condenses the working fluid by dissipating the working fluid evaporated in the equipment heat exchanger. The gas phase passage communicates the inlet through which the gas phase working fluid flows into the condenser and the upper connection portion of the equipment heat exchanger. The liquid phase passage communicates the outlet that flows the liquid phase working fluid from the condenser and the lower connection portion of the heat exchanger for equipment. The fluid passage communicates the upper connection portion and the lower connection portion of the equipment heat exchanger without including the condenser on the path. The heating unit can heat the liquid-phase working fluid flowing through the fluid passage. The control device operates the heating unit when heating the target device, and stops the operation of the heating unit when cooling the target device.

According to the 2nd viewpoint, the heat dissipation suppression part which can suppress the heat dissipation of the working fluid by a condenser is further provided. According to this, when the target device is warmed up, the working fluid circulates from the heat exchanger for the device to the gas phase passage, the condenser, and the liquid phase passage by suppressing the heat radiation of the working fluid by the condenser by the heat radiation suppressing unit. Is suppressed. Therefore, when the target device is warmed up, the working fluid can flow through the fluid passage, the upper connection portion, the equipment heat exchanger, the lower connection portion, and the fluid passage. Therefore, this device temperature control device can warm up the target device with high efficiency by smoothly circulating the working fluid.

According to the third aspect, the heat dissipation suppression unit is a fluid control valve provided in the liquid phase passage or the gas phase passage. According to this, the fluid control valve can suppress or substantially stop the heat radiation of the working fluid by the condenser by blocking the flow of the working fluid in the liquid phase passage or the gas phase passage.

According to the fourth aspect, the heat dissipation suppressing portion is a door member capable of blocking the flow of air passing through the condenser. According to this, the door member can suppress or substantially stop the heat radiation of the working fluid by the condenser by blocking the flow of the air passing through the condenser.

According to a fifth aspect, the device temperature control device further includes a refrigeration cycle having a compressor, a high-pressure side heat exchanger, an expansion valve, a refrigerant-working fluid heat exchanger, a refrigerant pipe, and a flow rate regulating unit. The compressor compresses the refrigerant. The high-pressure side heat exchanger dissipates heat from the refrigerant compressed by the compressor. The expansion valve depressurizes the refrigerant dissipated by the high pressure side heat exchanger. The refrigerant-working fluid heat exchanger exchanges heat between the refrigerant flowing out of the expansion valve and the working fluid flowing through the condenser. The refrigerant pipe connects the compressor, the high-pressure side heat exchanger, the expansion valve, and the refrigerant-working fluid heat exchanger. The flow rate regulating unit regulates the flow of the refrigerant flowing through the refrigerant pipe. Here, the heat radiation suppressing unit is a flow rate regulating unit included in the refrigeration cycle, and can block the flow of the refrigerant flowing through the refrigerant pipe, thereby suppressing the heat radiation of the working fluid by the condenser.

According to a sixth aspect, the device temperature control device further includes a water pump, a cooling water radiator, a water-working fluid heat exchanger, and a cooling water circuit having a cooling water pipe. The water pump pumps the cooling water. The cooling water radiator radiates the cooling water pumped by the water pump. The water-working fluid heat exchanger exchanges heat between the cooling water flowing out from the cooling water radiator and the working fluid flowing through the condenser. The cooling water pipe connects the water pump, the cooling water radiator, and the water-working fluid heat exchanger. Here, the heat dissipation suppression unit is a water pump included in the cooling water circuit, and can block the flow of the cooling water flowing through the cooling water piping, thereby suppressing the heat dissipation of the working fluid by the condenser.

According to the seventh aspect, the device temperature control device for adjusting the temperature of the target device by the phase change between the liquid phase and the gas phase of the working fluid includes a device heat exchanger, an upper connection portion, a lower connection portion, and a fluid passage. And a heating unit and a control device. The equipment heat exchanger is configured to exchange heat between the target equipment and the working fluid so that the working fluid is condensed when the target equipment is warmed up. An upper connection part is provided in the site | part of the gravity direction upper side among the heat exchangers for apparatuses, and a working fluid flows in or out. A lower connection part is provided in the site | part below a gravity direction rather than an upper connection part among the heat exchangers for apparatuses, and a working fluid flows in or out. The fluid passage communicates the upper connection portion and the lower connection portion of the equipment heat exchanger. The heating unit can heat the liquid-phase working fluid flowing through the fluid passage. The control device operates the heating unit when heating the target device.

According to the eighth aspect, the heating unit is provided in a portion of the fluid passage that extends vertically in the gravity direction. According to this, the working fluid that has been heated and vaporized by the heating unit quickly flows through the fluid passage upward in the direction of gravity. Therefore, it is possible to prevent the gas-phase working fluid from flowing backward from the fluid passage to the lower connection portion side. Therefore, this device temperature control device can warm up the target device with high efficiency by smoothly circulating the working fluid.

According to the ninth aspect, the fluid passage has a backflow suppressing portion extending downward from the heating portion in the direction of gravity between the lower connection portion of the heat exchanger for equipment and the heating portion. According to this, the backflow suppression unit extending downward in the gravitational direction from the heating unit can prevent the working fluid heated and vaporized by the heating unit from flowing back to the lower connection unit. Therefore, this device temperature control device can smoothly circulate the working fluid in the order of fluid passage → upper connection portion → equipment heat exchanger → lower connection portion → fluid passage when the target device is warmed up.

According to the tenth aspect, the fluid passage has a liquid storage part for storing a liquid-phase working fluid flowing through the fluid passage in the middle of the passage. According to this, the device temperature control device can store the amount of working fluid necessary for cooling and warming up the target device in the liquid storage unit.

According to the eleventh aspect, the liquid storage part is formed by increasing the inner diameter of a part of the path of the fluid passage. According to this, the liquid storage part can be provided in the fluid passage with a simple configuration.

According to the twelfth aspect, at least a part of the liquid storage part is located within the height range of the upper connection part and the lower connection part of the equipment heat exchanger. According to this, the apparatus temperature control apparatus can adjust the liquid level of the working fluid in the apparatus heat exchanger easily by adjusting the liquid level of the liquid storage part.

According to the thirteenth aspect, the heating part is provided at a position where the liquid-phase working fluid stored in the liquid storage part can be heated. According to this, the heating efficiency of the working fluid by a heating part can be improved.

According to the fourteenth aspect, the control device heats the target device while repeatedly increasing and decreasing the heating capacity of the heating unit. According to this, when warming up the target device, increasing the heating capacity of the heating unit promotes warming up of the target device, and decreasing the heating capability of the heating unit decreases the temperature distribution of the target device. Therefore, the control device can warm up the target device while suppressing the temperature distribution of the target device by repeatedly increasing and decreasing the heating capacity of the heating unit when heating the target device. Therefore, when the assembled battery is applied as the target device, this device temperature control device can prevent current concentration from occurring in a portion having a high temperature in the assembled battery when the assembled battery is charged and discharged. .

According to the fifteenth aspect, the control device has a function of determining the size of the temperature distribution of the target device. The control device reduces the heating capability of the heating unit when the temperature distribution of the target device is equal to or higher than a predetermined first temperature threshold, and when the temperature distribution of the target device is equal to or lower than the predetermined second temperature threshold, Increase heating capacity. According to this, the control device can prevent the temperature distribution of the target device from becoming larger than the predetermined first temperature threshold.

According to the sixteenth aspect, the control device determines the size of the temperature distribution of the target device based on the heating capability of the heating unit. According to this, the greater the heating capacity of the heating unit, the greater the heat flow supplied from the heating unit to the target device via the working fluid, and thus the temperature distribution of the target device increases. On the other hand, the smaller the heating capacity of the heating unit, the smaller the heat flow rate supplied from the heating unit to the target device via the working fluid, so the temperature distribution of the target device becomes smaller. Therefore, the control device can determine the size of the temperature distribution of the target device with a simple configuration by detecting the heating capability of the heating unit.

According to the seventeenth aspect, the control device heats the target device while intermittently repeating driving and stopping of the heating unit. According to this, when warming up the target device, the warming-up of the target device is promoted by driving the heating unit, and the temperature equalization of the target device is promoted by stopping the driving of the heating unit. Therefore, the control device can warm up the target device while suppressing the temperature distribution of the target device by intermittently repeating driving and stopping of the heating unit when heating the target device.

According to the eighteenth aspect, the control device has a function of determining the size of the temperature distribution of the target device. The control device stops the operation of the heating unit when the temperature distribution of the target device is equal to or higher than the predetermined first temperature threshold, and operates when the temperature distribution of the target device is equal to or lower than the predetermined second temperature threshold. To resume. According to this, the control device can prevent the temperature distribution of the target device from becoming larger than the predetermined first temperature threshold.

According to the nineteenth aspect, the control device determines the magnitude of the temperature distribution of the target device based on the time during which the heating unit is continuously operated or the time during which the heating unit is continuously stopped. Determine. According to this, since the amount of heat supplied from the heating unit to the target device via the working fluid increases as the time during which the heating unit continuously operates, the temperature distribution of the target device increases. On the other hand, as the time during which the heating unit is continuously stopped is longer, the temperature of each part of the target device is averaged, and the temperature distribution of the target device becomes smaller. Therefore, the control device can determine the size of the temperature distribution of the target device with a simple configuration by detecting the time during which the heating unit is continuously activated or stopped.

According to the twentieth aspect, the control device determines the size of the temperature distribution of the target device based on the power supplied to the heating unit. According to this, when the heating unit is, for example, a heater or a Peltier element, the larger the electric power supplied to the heating unit, the larger the heat flow supplied from the heating unit to the target device via the working fluid. The temperature distribution of the equipment increases. On the other hand, the smaller the electric power supplied to the heating unit, the smaller the heat flow supplied from the heating unit to the target device via the working fluid, so the temperature distribution of the target device becomes smaller. Therefore, the control device can determine the size of the temperature distribution of the target device with a simple configuration by detecting the power supplied to the heating unit.

According to a twenty-first aspect, the heating unit is a water-working fluid heat exchanger configured such that warm water flows when the target device is warmed up. The control device determines the size of the temperature distribution of the target device based on the heating capability of the working fluid by the water-working fluid heat exchanger. According to this, the greater the heating capacity of the working fluid by the water-working fluid heat exchanger, the greater the heat flow rate supplied from the water-working fluid heat exchanger to the target device via the working fluid. The temperature distribution increases. On the other hand, the smaller the heating capacity of the working fluid by the water-working fluid heat exchanger, the smaller the heat flow supplied from the water-working fluid heat exchanger to the target device via the working fluid. Becomes smaller. Therefore, the control device can determine the size of the temperature distribution of the target device with a simple configuration by detecting the heating capability of the working fluid by the water-working fluid heat exchanger.

According to the twenty-second aspect, the control device determines the size of the temperature distribution of the target device based on the difference between the water temperature flowing through the water-working fluid heat exchanger and the temperature of the target device. According to this, as the temperature of the water flowing through the water-working fluid heat exchanger (that is, the temperature of the hot water) is higher than the temperature of the target device, the heat flow supplied from the water-working fluid heat exchanger to the target device is higher. Since it becomes large, the temperature distribution of an object apparatus becomes large. On the other hand, the smaller the difference between the water temperature flowing through the water-working fluid heat exchanger and the temperature of the target device, the smaller the heat flow supplied from the water-working fluid heat exchanger to the target device. Becomes smaller. Therefore, the control device can determine the size of the temperature distribution of the target device with a simple configuration by detecting the temperature of the water flowing through the water-working fluid heat exchanger and the temperature of the target device.

According to the twenty-third aspect, the control device is based on the difference between the temperature of the water flowing through the water-working fluid heat exchanger and the temperature of the target device, and the flow rate of the water flowing through the water-working fluid heat exchanger, Determine the temperature distribution of the target device. According to this, the difference between the temperature of the water flowing through the water-working fluid heat exchanger and the temperature of the target device is large, and the greater the flow rate of water flowing through the water-working fluid heat exchanger, Since the heat flow supplied to the target device is increased, the temperature distribution of the target device is increased. On the other hand, the smaller the difference between the temperature of the water flowing through the water-working fluid heat exchanger and the temperature of the target device and the smaller the flow rate of water flowing through the water-working fluid heat exchanger, the more the water-working fluid heat exchanger moves from the target device to the target device. Since the supplied heat flow becomes small, the temperature distribution of the target device becomes small. Therefore, the control device detects the temperature of the water flowing through the water-working fluid heat exchanger, the temperature of the target device, and the flow rate of the water flowing through the water-working fluid heat exchanger. It is possible to determine the size of the distribution.

According to a twenty-fourth aspect, the heating unit is a refrigerant-working fluid heat exchanger configured such that a high-temperature refrigerant flows when the target device is warmed up. The control device determines the size of the temperature distribution of the target device based on the heating capability of the working fluid by the refrigerant-working fluid heat exchanger. According to this, the larger the heating capacity of the working fluid by the refrigerant-working fluid heat exchanger, the larger the heat flow rate supplied from the refrigerant-working fluid heat exchanger to the target device via the working fluid. The temperature distribution increases. On the other hand, the smaller the heating capacity of the working fluid by the refrigerant-working fluid heat exchanger, the smaller the heat flow supplied from the refrigerant-working fluid heat exchanger to the target device via the working fluid. Becomes smaller. Therefore, the control device can determine the magnitude of the temperature distribution of the target device with a simple configuration by detecting the heating ability of the working fluid by the refrigerant-working fluid heat exchanger.

According to the twenty-fifth aspect, the control device determines the size of the temperature distribution of the target device based on the difference between the temperature of the refrigerant flowing through the refrigerant-working fluid heat exchanger and the temperature of the target device. According to this, the greater the difference between the temperature of the refrigerant flowing through the refrigerant-working fluid heat exchanger and the temperature of the target device, the greater the heat flow supplied from the refrigerant-working fluid heat exchanger to the target device. The temperature distribution of the target equipment increases. On the other hand, the smaller the difference between the temperature of the refrigerant flowing through the refrigerant-working fluid heat exchanger and the temperature of the target device, the smaller the heat flow supplied from the refrigerant-working fluid heat exchanger to the target device. The temperature distribution becomes smaller. Therefore, the control device can determine the size of the temperature distribution of the target device with a simple configuration by detecting the temperature of the refrigerant flowing through the refrigerant-working fluid heat exchanger and the temperature of the target device. .

According to a twenty-sixth aspect, the control device is based on the difference between the temperature of the refrigerant flowing through the refrigerant-working fluid heat exchanger and the temperature of the target device, and the flow rate of the refrigerant flowing through the refrigerant-working fluid heat exchanger, Determine the temperature distribution of the target device. According to this, as the temperature of the refrigerant flowing through the refrigerant-working fluid heat exchanger is higher than the temperature of the target device and the flow rate of the refrigerant flowing through the refrigerant-working fluid heat exchanger is larger, the refrigerant-working fluid heat exchanger Since the heat flow supplied to the target device from becomes larger, the temperature distribution of the target device becomes larger. On the other hand, the smaller the difference between the temperature of the refrigerant flowing through the refrigerant-working fluid heat exchanger and the temperature of the target device and the smaller the flow rate of the refrigerant flowing through the refrigerant-working fluid heat exchanger, the more from the refrigerant-working fluid heat exchanger. Since the heat flow supplied to the device is small, the temperature distribution of the target device is small. Therefore, the control device detects the temperature of the refrigerant flowing through the refrigerant-working fluid heat exchanger, the temperature of the target device, and the flow rate of the refrigerant flowing through the refrigerant-working fluid heat exchanger, and has a simple configuration. It is possible to determine the size of the temperature distribution.

According to a twenty-seventh aspect, an apparatus temperature control device that adjusts the temperature of a target apparatus by a phase change between a liquid phase and a gas phase of a working fluid includes an apparatus heat exchanger, an upper connection section, a lower connection section, and a fluid passage. And a heat supply member. The equipment heat exchanger is configured such that the target equipment and the working fluid can exchange heat so that the working fluid evaporates when the target equipment is cooled and the working fluid is condensed when the target equipment is warmed up. An upper connection part is provided in the site | part of the gravity direction upper side among the heat exchangers for apparatuses, and a working fluid flows in or out. A lower connection part is provided in the site | part below a gravity direction rather than an upper connection part among the heat exchangers for apparatuses, and a working fluid flows in or out. The fluid passage communicates the upper connection portion and the lower connection portion of the equipment heat exchanger. The heat supply member is provided in the fluid passage at a position in the height direction across the liquid level of the working fluid inside the equipment heat exchanger, and selectively selects cold or hot for the working fluid flowing through the fluid passage. Can be supplied.

According to a twenty-eighth aspect, the heat supply member is a water-working fluid heat exchanger. This water-working fluid heat exchanger is selected so that cold water flows to supply cold heat to the working fluid when the target device is cooled, and hot water flows to supply hot heat to the working fluid when the target device is warmed up. It is configured to be switched automatically. According to this, it is possible to use a water-working fluid heat exchanger as a heat supply member that selectively supplies cold or warm heat.

According to a twenty-ninth aspect, the heat supply member is a refrigerant-working fluid heat exchanger. In this refrigerant-working fluid heat exchanger, a low-temperature and low-pressure refrigerant for supplying cold to the working fluid flows when the target device is cooled, and a high-temperature and high-pressure for supplying warm temperature to the working fluid when the target device is warmed up. The refrigerant is selectively switched so as to flow. According to this, it is possible to use a refrigerant-working fluid heat exchanger as a heat supply member that selectively supplies cold or warm heat.

According to the thirtieth aspect, in the heat supply member, the cold supply mechanism capable of supplying cold to the working fluid flowing in the fluid passage is disposed on the upper side in the gravity direction. Moreover, the heat supply mechanism which can supply heat with respect to the working fluid which flows through a fluid channel in the heat supply member is arrange | positioned at the gravity direction lower side. According to this, at the time of cooling the target device, it is possible to reliably supply cold heat from the refrigerant-working fluid heat exchange unit to the vapor-phase working fluid flowing through the fluid passage, thereby promoting the condensation of the working fluid. Further, when the target device is warmed up, it is possible to reliably supply warm heat from the water-working fluid heat exchange section to the liquid-phase working fluid flowing through the fluid passage, thereby promoting evaporation of the working fluid.

According to a thirty-first aspect, the cold supply mechanism is a refrigerant-working fluid heat exchange unit through which a low-temperature and low-pressure refrigerant flows when the target device is cooled. On the other hand, the warm heat supply mechanism is a water-working fluid heat exchange unit through which warm water flows when the target device is warmed up. According to this, it is possible to use the refrigerant-working fluid heat exchanger as the cold heat supply mechanism and use the water-working fluid heat exchanger as the warm heat supply mechanism.

According to the thirty-second aspect, the heat supply member is a pneumatic heat exchanger, and cold air is supplied to the upper part of the heat supply member in the direction of gravity when the target device is cooled, and heat is supplied when the target device is warmed up. It is comprised so that a warm air may be supplied to the site | part below a gravity direction among members. According to this, when the target device is warmed up, the liquid-phase working fluid flowing through the pneumatic heat exchanger can be heated by the hot air. In addition, when the target device is cooled, the gas-phase working fluid flowing through the pneumatic heat exchanger can be cooled by cold air.

According to the thirty-third aspect, the heat supply member is composed of a thermoelectric element. According to this, it is possible to use a thermoelectric element such as a Peltier element as a heat supply member that selectively supplies cold or warm heat.

According to a thirty-fourth aspect, the device temperature control device further includes a condenser, a gas phase passage, and a liquid phase passage. The condenser is disposed above the equipment heat exchanger in the direction of gravity, and condenses the working fluid by dissipating the working fluid evaporated in the equipment heat exchanger. The gas phase passage communicates the inlet through which the gas phase working fluid flows into the condenser and the upper connection portion of the equipment heat exchanger. The liquid phase passage communicates the outlet that flows the liquid phase working fluid from the condenser and the lower connection portion of the heat exchanger for equipment. The fluid passage described above communicates the upper connection portion and the lower connection portion of the equipment heat exchanger without including a condenser on the path. According to this, with respect to the warming-up function and the cooling function of the target device by the heat supply member, the device temperature control device has the cooling function of the target device by the condenser arranged on the upper side in the gravity direction with respect to the device temperature control device. Can be added.

Claims

A device temperature control device for adjusting the temperature of the target device (2) by the phase change between the liquid phase and the gas phase of the working fluid,
The equipment heat exchanger (10, 10) configured to allow heat exchange between the target device and the working fluid so that the working fluid evaporates when the target device is cooled and the working fluid is condensed when the target device is warmed up. 10a, 10b)
An upper connection (15, 151, 151a, 151b, 152, 152a, 152b) through which the working fluid flows in or out of the heat exchanger for equipment;
A lower connection portion (16, 161, 161a, 161b, 162, 162a, 162b) that is provided in a lower part of the apparatus heat exchanger than the upper connection portion in the direction of gravity, and into which working fluid flows in or out; ,
A condenser (30, 30a, 30b) that is disposed above the heat exchanger for equipment and that condenses the working fluid by dissipating the working fluid evaporated in the equipment heat exchanger;
A gas-phase passage (50 to 54) that communicates the inlet through which the gas-phase working fluid flows into the condenser and the upper connection portion of the equipment heat exchanger, and the liquid-phase working fluid flows out from the condenser A liquid phase passage (40 to 44) that communicates the outlet to be communicated with the lower connection portion of the equipment heat exchanger;
Fluid passages (60, 60a, 60b) communicating the upper connection portion and the lower connection portion of the heat exchanger for equipment without including the condenser on the path;
A heating section (61, 61a, 61b) capable of heating a liquid-phase working fluid flowing through the fluid passage;
A device temperature control apparatus comprising: a control device (5) that operates the heating unit when heating the target device and stops the operation of the heating unit when cooling the target device.
The device temperature control device according to claim 1, further comprising a heat radiation suppressing portion (34, 70, 83, 91) capable of suppressing heat radiation of the working fluid by the condenser.
3. The apparatus temperature control device according to claim 2, wherein the heat radiation suppressing unit is a fluid control valve (70) provided in the liquid phase passage or the gas phase passage.
The device temperature adjusting device according to claim 2, wherein the heat radiation suppressing unit is a door member (34) capable of blocking a flow of air passing through the condenser.
A compressor (81) for compressing the refrigerant, a high-pressure side heat exchanger (82) for radiating heat of the refrigerant compressed by the compressor, an expansion valve (84) for depressurizing the refrigerant radiated by the high-pressure side heat exchanger, A refrigerant-working fluid heat exchanger (85) for exchanging heat between the refrigerant flowing out of the expansion valve and the working fluid flowing through the condenser, the compressor, the high-pressure heat exchanger, the expansion valve, and the refrigerant-working fluid. A refrigerant pipe (89) for connecting to the heat exchanger, and a refrigeration cycle (8) having a flow rate regulating part (83) for regulating the flow of the refrigerant flowing through the refrigerant pipe,
5. The heat release suppressing unit is the flow rate restricting unit of the refrigeration cycle, and is capable of suppressing heat dissipation of the working fluid by the condenser by blocking a flow of the refrigerant flowing through the refrigerant pipe. The apparatus temperature control apparatus as described in any one of these.
A water pump (91) for pumping the cooling water, a cooling water radiator (92) for dissipating the cooling water pumped by the water pump, a cooling water flowing out from the cooling water radiator, and a working fluid flowing through the condenser Water-working fluid heat exchanger (93) for heat exchange, and a cooling water circuit having a cooling water pipe (94) connecting the water pump, the cooling water radiator, and the water-working fluid heat exchanger (9) is further provided,
The heat dissipation suppression unit is the water pump included in the cooling water circuit, and the heat dissipation of the working fluid by the condenser can be suppressed by blocking the flow of the cooling water flowing through the cooling water pipe. The apparatus temperature control apparatus as described in any one of thru | or 5.
A device temperature control device for adjusting the temperature of the target device (2) by the phase change between the liquid phase and the gas phase of the working fluid,
A heat exchanger for equipment (10, 10a, 10b) configured to allow heat exchange between the target equipment and the working fluid so that the working fluid is condensed when the target equipment is warmed up;
An upper connection (15, 151, 151a, 151b, 152, 152a, 152b) through which the working fluid flows in or out of the heat exchanger for equipment;
A lower connection portion (16, 161, 161a, 161b, 162, 162a, 162b) that is provided in a lower part of the apparatus heat exchanger than the upper connection portion in the direction of gravity, and into which working fluid flows in or out; ,
Fluid passages (60, 60a, 60b) communicating the upper connection portion and the lower connection portion of the equipment heat exchanger;
A heating section (61, 61a, 61b) capable of heating a liquid-phase working fluid flowing through the fluid passage;
A device temperature control device comprising: a control device (5) that operates the heating unit when the target device is heated.
The apparatus temperature control device according to any one of claims 1 to 7, wherein the heating unit is provided in a portion of the fluid passage that extends vertically in the gravity direction.
The fluid passage has a backflow suppression part (62) extending downward in the gravity direction from the heating part between the lower connection part and the heating part of the equipment heat exchanger. The apparatus temperature control apparatus as described in any one.
The device temperature control device according to any one of claims 1 to 9, wherein the fluid passage has a liquid storage portion (63) for storing a liquid-phase working fluid flowing through the fluid passage in the middle of the passage.
The device temperature control device according to claim 10, wherein the liquid storage part is formed by increasing a part of an inner diameter of the fluid passage.
The device temperature control device according to claim 10 or 11, wherein at least a part of the liquid storage unit is located within a height range of the upper connection portion and the lower connection portion of the device heat exchanger.
The apparatus temperature control device according to any one of claims 10 to 12, wherein the heating unit is provided at a position where the liquid-phase working fluid stored in the liquid storage unit can be heated.
The device temperature control device according to any one of claims 1 to 13, wherein the control device heats the target device while repeatedly increasing and decreasing a heating capacity of the heating unit.
The control device has a function of determining the size of the temperature distribution of the target device,
When the temperature distribution of the target device is equal to or higher than a predetermined first temperature threshold, the heating capacity of the heating unit is reduced,
The device temperature control device according to claim 14, wherein when the temperature distribution of the target device is equal to or lower than a predetermined second temperature threshold value, the heating capacity of the heating unit is increased.
The device temperature control device according to claim 14 or 15, wherein the control device determines a size of a temperature distribution of the target device based on a heating capability of the heating unit.
The device temperature control device according to any one of claims 1 to 13, wherein the control device heats the target device while intermittently repeating driving and stopping of the heating unit.
The control device has a function of determining the size of the temperature distribution of the target device,
When the temperature distribution of the target device is equal to or higher than a predetermined first temperature threshold, the operation of the heating unit is stopped,
The device temperature control device according to claim 17, wherein when the temperature distribution of the target device is equal to or lower than a predetermined second temperature threshold value, the operation of the heating unit is resumed.
The control device determines the size of the temperature distribution of the target device based on the time during which the heating unit is continuously operated or the time during which the heating unit is continuously stopped. The apparatus temperature control apparatus according to claim 17 or 18.
The device temperature control device according to any one of claims 14 to 19, wherein the control device determines a size of a temperature distribution of the target device based on electric power supplied to the heating unit.
The heating unit is a water-working fluid heat exchanger (93) configured to allow warm water to flow when the target device is warmed up,
The device temperature according to any one of claims 14 to 19, wherein the control device determines a size of a temperature distribution of the target device based on a heating capacity of the working fluid by the water-working fluid heat exchanger. Preparation device.
The device temperature control according to claim 21, wherein the control device determines a size of a temperature distribution of the target device based on a difference between a water temperature flowing through the water-working fluid heat exchanger and a temperature of the target device. apparatus.
The control device is configured to control the target device based on a difference between a temperature of water flowing through the water-working fluid heat exchanger and a temperature of the target device, and a flow rate of water flowing through the water-working fluid heat exchanger. The apparatus temperature control apparatus of Claim 21 or 22 which determines the magnitude | size of temperature distribution.
The heating unit is a refrigerant-working fluid heat exchanger (200) configured to allow a refrigerant having a high temperature to flow when the target device is warmed up.
The device temperature according to any one of claims 14 to 19, wherein the control device determines a size of a temperature distribution of the target device based on a heating capacity of the working fluid by the refrigerant-working fluid heat exchanger. Preparation device.
The device according to claim 24, wherein the control device determines the size of the temperature distribution of the target device based on a difference between a temperature of the refrigerant flowing through the refrigerant-working fluid heat exchanger and a temperature of the target device. Temperature control device.
The control device is configured to determine the difference between the temperature of the refrigerant flowing through the refrigerant-working fluid heat exchanger and the temperature of the target device, and the flow rate of the refrigerant flowing through the refrigerant-working fluid heat exchanger. The apparatus temperature control apparatus according to claim 24 or 25, wherein the temperature of the temperature distribution is determined.
A device temperature control device for adjusting the temperature of the target device (2) by the phase change between the liquid phase and the gas phase of the working fluid,
The equipment heat exchanger (10, 10) configured to allow heat exchange between the target device and the working fluid so that the working fluid evaporates when the target device is cooled and the working fluid is condensed when the target device is warmed up. 10a, 10b)
An upper connection (15, 151, 151a, 151b, 152, 152a, 152b) through which the working fluid flows in or out of the heat exchanger for equipment;
A lower connection portion (16, 161, 161a, 161b, 162, 162a, 162b) that is provided in a lower part of the apparatus heat exchanger than the upper connection portion in the direction of gravity, and into which working fluid flows in or out; ,
Fluid passages (60, 60a, 60b) communicating the upper connection portion and the lower connection portion of the equipment heat exchanger;
Provided in the fluid passage at a position in the height direction across the level of the fluid level (FL) of the working fluid inside the equipment heat exchanger, and select cold or hot for the working fluid flowing through the fluid passage And a heat supply member (85, 93, 100, 1010, 1020, 1030, 1040, 200) that can be supplied automatically.
The heat supply member is a water-working fluid heat exchanger (93), cold water for supplying cold heat to the working fluid flows when the target device is cooled, and to the working fluid when the target device is warmed up. The apparatus temperature control device according to claim 27, wherein the device temperature control device is configured to be selectively switched so that hot water for supplying warm heat flows.
The heat supply member is a refrigerant-working fluid heat exchanger (85). When the target device is cooled, a low-temperature and low-pressure refrigerant for supplying cold heat to the working fluid flows, and operates when the target device is warmed up. 28. The device temperature control device according to claim 27, wherein the device temperature control device is configured to be selectively switched so that a high-temperature and high-pressure refrigerant for supplying heat to the fluid flows.
Among the heat supply members, a cold heat supply mechanism capable of supplying cold heat to the working fluid flowing through the fluid passage is disposed on the upper side in the direction of gravity, and a hot heat supply mechanism capable of supplying hot heat to the working fluid flowing through the fluid passage. 30. The apparatus temperature control device according to any one of claims 27 to 29, wherein the device temperature is disposed on the lower side in the gravity direction.
The cold heat supply mechanism is a refrigerant-working fluid heat exchange unit (1020) through which a low-temperature and low-pressure refrigerant flows when the target device is cooled.
The device temperature control device according to claim 30, wherein the temperature supply mechanism is a water-working fluid heat exchange unit (1010) through which warm water flows when the target device is warmed up.
The heat supply member is a pneumatic heat exchanger (1030), and cold air is supplied to the upper part of the heat supply member in the direction of gravity when the target device is cooled, and the heat supply is performed when the target device is warmed up. The apparatus temperature control device according to claim 27, wherein the device is configured so that warm air is supplied to a lower portion of the member in the direction of gravity.
The apparatus temperature control device according to claim 27, wherein the heat supply member is constituted by a thermoelectric element (1040).
A condenser (30, 30a, 30b) that is disposed above the heat exchanger for equipment and that condenses the working fluid by dissipating the working fluid evaporated in the equipment heat exchanger;
A gas phase passageway (50 to 54) for communicating an inlet through which a gas phase working fluid flows into the condenser and the upper connection portion of the equipment heat exchanger;
A liquid phase passage (40 to 44) that communicates the outlet from which the liquid-phase working fluid flows out of the condenser and the lower connection portion of the equipment heat exchanger;
34. The fluid passage according to any one of claims 27 to 33, wherein the fluid passage does not include the condenser on the path and communicates the upper connection portion and the lower connection portion of the equipment heat exchanger. The apparatus temperature control apparatus as described in.