JP2023168059A - receiver cycle device - Google Patents

Abstract

To provide a receiver cycle device where vibrations of a receiver are suppressed.SOLUTION: A temperature regulator 1 includes a compression cycle device 10 and a non-compression cycle device 20. The compression cycle device 10 is provided with a receiver 13 separating a gas component of coolant from a liquid component. The compression cycle device 10 and the non-compression cycle device 20 are thermally coupled in a chiller 15. The non-compression cycle device 20 is provided with at least one heat load heat exchanger 22 for thermally exchanging with a thermal load 2. Consequently, the compression cycle device 10 is configured to thermally exchange with the heat load 2 via the chiller 15 and the non-compression cycle device 20. Moreover, the compression cycle device 10 and the non-compression cycle device 20 perform heat exchange between the coolant in the receiver 13 and a secondary medium in the receiver exchanger 23.SELECTED DRAWING: Figure 1

Description

The disclosure herein relates to receiver cycle devices.

Patent Document 1 discloses an arrangement in which a suction pipe of a compressor passes through a receiver. This provides heat exchange between the compressor suction refrigerant and the refrigerant in the receiver. The contents of the prior art documents are incorporated by reference as explanations of technical elements in this specification.

JP2009-270822A

In the configuration of Patent Document 1, vibrations may propagate to the receiver. For example, compressor vibrations may propagate directly to the receiver via piping. Furthermore, the pulsation of the refrigerant sucked into the compressor may cause the receiver to vibrate. Vibrations can cause component damage. Vibrations can cause noise. Further improvements in the receiver cycle are required in the above-mentioned respects and in other respects not mentioned.

One object of the disclosure is to provide a receiver cycle device in which vibration of the receiver is suppressed.

The receiver cycle device disclosed herein includes a compressor (11) that compresses a refrigerant as a primary medium, a radiator (12) that radiates heat from the refrigerant compressed by the compressor, and a gas refrigerant that converts the refrigerant heat radiated by the radiator into a gas refrigerant. A compression cycle device (10) having a receiver (13) that separates the refrigerant into liquid refrigerant, and a chiller (15) in a closed circuit that evaporates the refrigerant supplied from the receiver and supplies the evaporated refrigerant to the compressor; A closed circuit in which a secondary medium that exchanges heat with the refrigerant circulates in the chiller includes a heat load heat exchanger (22, 222) that exchanges heat with the heat load, and a receiver that exchanges heat between the secondary medium and the refrigerant in the receiver. and a non-compression cycle device (20) having a heat exchanger (23).

According to the disclosed receiver cycle device, the compression cycle device adjusts the temperature of the heat load via the chiller and the heat load heat exchanger of the non-compression cycle device. Moreover, the receiver heat exchanger of the non-compression cycle device exchanges heat with the refrigerant in the receiver. As a result, the refrigerant in the receiver is cooled by the secondary medium. Furthermore, since the receiver heat exchanger belongs to a non-compression cycle device, the vibrations of the compressor are not directly transmitted to the receiver. As a result, vibration of the receiver is suppressed.

The multiple embodiments disclosed in this specification employ different technical means to achieve their respective objectives. The claims and the reference numerals in parentheses described in this section exemplarily indicate correspondence with parts of the embodiment described later, and are not intended to limit the technical scope. The objects, features, and advantages disclosed in this specification will become more apparent by reference to the subsequent detailed description and accompanying drawings.

FIG. 1 is a block diagram of a cooling device according to a first embodiment. FIG. 3 is a partial cross-sectional view showing the installed state of the compressor. FIG. 2 is a block diagram of a cooling device according to a second embodiment. It is a block diagram of a cooling device concerning a 3rd embodiment.

Embodiments are described with reference to the drawings. In embodiments, functionally and/or structurally corresponding and/or related parts may be provided with the same reference numerals or with reference numerals that differ by hundreds or more. Descriptions of other embodiments can be referred to for corresponding and/or related parts.

First Embodiment In FIG. 1, a temperature adjustment device 1 is a temperature adjustment device that adjusts the temperature of a heat load 2 by being operated. The temperature control device 1 is used for cooling purposes to lower the temperature of a heat load 2. The temperature adjustment device 1 is also called a cooling device. The temperature adjustment device 1 may be used for heating purposes to increase the temperature of the heat load 2. The temperature adjustment device 1 is also called a heating device. The heat load 2 is gas, liquid, or solid. An example of a gas is conditioned air in an air conditioner. The gas may be air that cools items such as electrical components. An example of a liquid is potable water. The liquid may be cooling water that cools items such as electrical components. An example of a solid state is a battery. Batteries often include an electrolyte, but can be viewed as entirely solid. Note that in this specification, the term "battery" is interpreted to include a secondary battery and a fuel cell. The secondary battery may be a lead battery, a lithium ion battery, a nickel cadmium battery, or the like. The solid state may be an article such as an electrical component, such as a switching element that generates heat.

The temperature control device 1 is installed in a device that uses a temperature control function. The equipment is a fixed body or a moving body. A fixed body may be installed in a house or business. For example, when the temperature adjustment device 1 is installed on a fixed body, the temperature adjustment device 1 may provide an air conditioning device. Here, the term "mobile object" should be interpreted as a concept that includes vehicles that are intended to be ridden by humans or unmanned moving objects that are not intended to be ridden by humans. Furthermore, the term mobile object should be interpreted as a concept that includes vehicles, aircraft, and ships. The moving body includes a body member such as a vehicle, an aircraft, a ship, a gas body, or a body member called a ship body. The parts constituting the temperature control device 1 are directly or indirectly fixed to the body member.

In this embodiment, the temperature control device 1 is mounted on a vehicle. The vehicle may be an internal combustion engine vehicle that uses only the internal combustion engine as a power source. The vehicle may be an electric vehicle that uses an electric motor as a power source. An electric vehicle may be a hybrid vehicle that uses an internal combustion engine and an electric motor selectively or in combination as power sources. An electric vehicle may be a fully electric vehicle that uses only an electric motor as a power source. When a vehicle is equipped with an electric motor, the electric motor may be supplied with power from a battery as a heat load.

The temperature control device 1 includes a compression cycle device 10 and a non-compression cycle device 20. The temperature control device 1 includes a receiver belonging to the compression cycle device 10 . Furthermore, the compression cycle device 10 and the non-compression cycle device 20 are configured to exchange heat at the receiver. In this aspect, the temperature adjustment device 1 is called a receiver cycle device.

The compression cycle device 10 may be referred to as a primary cycle that generates low or high temperatures utilized in the temperature adjustment device 1. The inside of the compression cycle device 10 is filled with refrigerant as a primary medium. The refrigerant of the compression cycle device 10 may be a natural refrigerant containing so-called fluorocarbons, carbon dioxide, ammonia, and the like. The compression cycle device 10 is sometimes referred to as a refrigeration cycle that generates and utilizes low temperature that is lower than the environmental temperature. The compression cycle device 10 is sometimes referred to as a heat pump cycle that generates and utilizes high temperature that is higher than the environmental temperature. The compression cycle device 10 may utilize a phase change of refrigerant. The compression cycle device 10 is sometimes called a vapor compression refrigeration cycle device.

The compression cycle device 10 includes a plurality of functional parts. A refrigerant passage is formed between two adjacent functional parts in a refrigerant path to mechanically connect them. A refrigerant passage provides fluid communication between the two functional components. The refrigerant passage may be provided by piping 10a. The piping 10a is provided by a metal tube such as copper or aluminum.

The compression cycle device 10 includes a compressor 11, a radiator 12, a receiver 13, and a chiller 15. The compressor 11, the radiator 12, the receiver 13, and the chiller 15 are arranged in this order in an annular shape. During operation, the compression cycle device 10 forms a closed circuit in which refrigerant circulates. In the closed circuit, the compressor 11, the radiator 12, the receiver 13, and the chiller 15 are arranged so that the refrigerant flows in this order. In the illustrated example, the refrigerant flows in a counterclockwise direction. In the following description, the terms upstream and downstream in the compression cycle device 10 indicate upstream and downstream in the flow direction of the refrigerant.

The compression cycle device 10 includes a compressor 11. The compressor 11 is installed on the body member by one or more vibration isolating parts 6. The compressor 11 is driven and operated using an electric motor or an internal combustion engine as a power source. In this embodiment, compressor 11 is driven by an electric motor. The compressor 11 is also called an electric compressor. The compressor 11 includes a suction port 11a and a discharge port 11b. The inlet 11a is provided by an opening in the housing of the compressor 11 or by an opening in a pipe extending from the compressor 11. The discharge port 11b is provided by an opening in the housing of the compressor 11 or by an opening in a pipe extending from the compressor 11. When the compressor 11 is operated, it sucks low-pressure refrigerant from the suction port 11a. When the compressor 11 is operated, it pressurizes the refrigerant. When the compressor 11 is operated, it discharges high-pressure refrigerant from the discharge port 11b.

The region from the discharge port 11b to the pressure reducer 14 is also called a high pressure system. The region from the pressure reducer 14 to the suction port 11a is also called a low pressure system. The inner diameter of the high pressure system piping 10a is smaller than the inner diameter of the low pressure system piping 10a.

The compressor 11 includes a gas injection port 11c. The compressor 11 mixes the gas refrigerant supplied from the gas injection port 11c into an intermediate stage of the compression process. Compressor 11 is sometimes called a gas injection compressor. Note that the supply of gas refrigerant to the gas injection port 11c may be switched on/off. When the compressor 11 is operated and gas refrigerant is supplied to the gas injection port 11c, the compression cycle device 10 functions as a gas injection cycle.

When the compressor 11 is operated, it vibrates. In order to suppress the propagation of this vibration, a vibration isolating component 6 that suppresses the propagation of vibration is used in the vibration propagation path. The vibration isolation component 6 may include a support member 7 that mechanically supports the compressor 11. The support member 7 includes an anti-vibration bushing. The anti-vibration bushing may be made of rubber or elastomer. The vibration isolating component 6 may include a vibration isolating tube 8 for flowing a refrigerant. The vibration isolation tube 8 may be an elastic tube made of metal mesh, rubber, or elastomer. In comparison with a metal tube, the vibration isolation tube 8 is also called a flexible tube or a flexible tube because it is more flexible than a metal tube or can be bent more easily than a metal tube. In this way, the compressor 11 is installed in the body member 5 of the utilization device that utilizes the temperature control function of the receiver cycle via the vibration isolating component 6 that suppresses the propagation of vibrations. The vibration isolation component 6 includes a support member 7 and a vibration isolation tube 8. The vibration isolation tube 8 includes a suction vibration isolation tube 8a and/or a discharge vibration isolation tube 8b. Furthermore, the vibration isolation tube 8 may include an injection vibration isolation tube 8c for gas injection.

The compressor 11 includes a suction vibration isolation pipe 8a connected to a suction port 11a. For example, the suction vibration isolation pipe 8a is arranged between the piping 10a and the suction port 11a. The compressor 11 includes a discharge vibration isolation pipe 8b connected to a discharge port 11b. For example, the discharge vibration isolating pipe 8b is arranged between the discharge port 11b and the pipe 10a. Furthermore, the compressor 11 may include an injection vibration isolation pipe 8c that provides a gas injection passage.

The compression cycle device 10 includes a heat radiator 12. Heat radiator 12 is arranged between compressor 11 and receiver 13. The heat radiator 12 is arranged downstream of the compressor 11. The heat radiator 12 is arranged upstream of the receiver 13. The radiator 12 cools the high-pressure refrigerant discharged from the compressor 11. The heat radiator 12 can be provided by an air-cooled or liquid-cooled heat exchanger. In this embodiment, the radiator 12 performs heat exchange between the air and the refrigerant. In most cases, the air outside the vehicle is used. If the refrigerant is condensable, the radiator 12 condenses the refrigerant. The heat radiator 12 may also be called a condenser.

The compression cycle device 10 includes a receiver 13. Receiver 13 is arranged between radiator 12 and chiller 15. Receiver 13 is arranged downstream of radiator 12. Receiver 13 is arranged upstream of pressure reducer 14. The receiver 13 is also a container that separates the gas refrigerant and the liquid refrigerant. The receiver 13 includes an inlet opening at the top of the container. The receiver 13 includes an outlet opening at the bottom of the container. The receiver 13 receives a mixed refrigerant that is a mixture of gas refrigerant and liquid refrigerant. The receiver 13 mainly flows out liquid refrigerant. The receiver 13 is also called a gas-liquid separator that separates gas refrigerant and liquid refrigerant. The receiver 13 is also a regulator that adjusts the amount of refrigerant flowing within the compression cycle device 10 by storing liquid refrigerant.

The compression cycle device 10 includes a pressure reducer 14. The pressure reducer 14 is arranged between the receiver 13 and the chiller 15. The pressure reducer 14 is arranged downstream of the receiver 13. The pressure reducer 14 is arranged upstream of the chiller 15. The pressure reducer 14 is also called a main pressure reducer. Since the pressure reducer 14 reduces the pressure of the liquid refrigerant supplied from the receiver 13, it is also called an orifice, a liquid pressure reducer, or an expansion valve. The pressure reducer 14 narrows the refrigerant passage so that the refrigerant evaporates in the following chiller 15. The pressure reducer 14 may be provided by a temperature sensitive expansion valve to efficiently evaporate the refrigerant in the chiller 15. The temperature sensitive expansion valve is configured to adjust the throttle area according to the temperature of the chiller 15.

The compression cycle device 10 includes a chiller 15. Chiller 15 is arranged between pressure reducer 14 and compressor 11. The chiller 15 is arranged downstream of the pressure reducer 14. Chiller 15 is arranged upstream of compressor 11. Chiller 15 evaporates the refrigerant. The chiller 15 enables heat exchange between the refrigerant and the secondary medium. Chiller 15 may also be called an evaporator. Chiller 15 may also be referred to as a refrigerant-water heat exchanger. The chiller 15 cools the secondary medium flowing through the non-compression cycle device 20. The compression cycle device 10 and the non-compression cycle device 20 are thermally coupled in the chiller 15.

Chiller 15 includes a refrigerant passage 15a and a medium passage 15b. The refrigerant passage 15a and the medium passage 15b are in close contact to enable heat exchange between the refrigerant and the secondary medium. The refrigerant passage 15a is a passage through which refrigerant flows during operation. The refrigerant passage 15a is configured as an evaporator in which refrigerant evaporates. The medium passage 15b is a passage through which a secondary medium flows during operation.

The compression cycle device 10 includes a gas injection passage 16 . The gas injection passage 16 fluidly communicates the branch point between the radiator 12 and the receiver 13 and the gas injection port 11c. The gas injection passage 16 diverts a portion of the high-pressure refrigerant from the branch point between the radiator 12 and the receiver 13 . Gas injection passage 16 guides a portion of the high-pressure refrigerant to bypass receiver 13 and chiller 15 . The gas injection passage 16 supplies a portion of the high-pressure refrigerant to the gas injection port 11c.

The gas injection passage 16 includes an injection vibration isolation tube 8c. The injection vibration isolation pipe 8c is arranged between the piping 10a and the gas injection port 11c. The gas injection passage 16 is provided by a relatively thin pipe 10a. Since the gas injection passage 16 is a relatively thin pipe 10a, it has an anti-vibration effect. Therefore, the propagation of vibrations may be suppressed only by the piping 10a of the gas injection passage 16. In this case, the injection vibration isolating tube 8c may not be provided.

The compression cycle device 10 includes a gas-liquid separator 17. The gas-liquid separator 17 separates a gas refrigerant for gas injection from the refrigerant downstream of the radiator 12 and supplies it to the gas injection passage 16 . The gas injection passage 16 may include an on-off valve that can interrupt the flow of gas refrigerant. When gas refrigerant is allowed from gas injection passage 16, compression cycle device 10 functions as a gas injection cycle.

In FIG. 2 , compressor 11 is fixed to body member 5 . The compressor 11 is supported and fixed to the body member 5 via the support member 7. A support member 7 is arranged between the compressor 11 and the body member 5. Therefore, the compressor 11 is indirectly fixed to the body member 5. The support member 7 includes a base member 7a fixed to the body member 5. The base member 7a is fixed to the body member 5 with bolts or the like. The base member 7a is fixed so as to vibrate integrally with the body member 5. The support member 7 includes an attachment member 7b fixed to the compressor 11. The attachment member 7b is fixed to the compressor 11 with bolts or the like. The attachment member 7b is fixed so as to vibrate integrally with the compressor 11.

A plurality of vibration isolation bushes 7c are arranged between the base member 7a and the attachment member 7b. The vibration isolating bush 7c may be an elastic member made of metal mesh, rubber, or elastomer. The base member 7a and the attachment member 7b are held at the predetermined positions shown in the figure via a vibration isolating bush 7c.

The vibration isolating bush 7c can be flexibly deformed in the frequency band of vibrations expected in the compressor 11. Therefore, the vibration isolating bush 7c suppresses the propagation of vibration in the direction from the attachment member 7b to the base member 7a. The anti-vibration bushing 7c may flexibly deform in the frequency band of vibration expected in the body member 5. Therefore, the vibration isolating bush 7c may suppress propagation of vibration in the direction from the base member 7a to the attachment member 7b. The vibration isolating bush 7c may suppress propagation of vibration in one direction and/or in both directions between the base member 7a and the attachment member 7b.

The suction vibration isolating pipe 8a and the discharge vibration isolating pipe 8b are arranged between the compressor 11 and the pipe 10a. Piping 10a is fixed to body member 5 directly or indirectly. The suction vibration isolating pipe 8a and the discharge vibration isolating pipe 8b suppress propagation of vibration in the direction from the compressor 11 toward the body member 5. The suction vibration isolating pipe 8a and the discharge vibration isolating pipe 8b may suppress propagation of vibration in the direction from the body member 5 to the compressor 11. The suction vibration isolating pipe 8a and the discharge vibration isolating pipe 8b suppress propagation of vibration between the compressor 11 and the body member 5 in one direction and/or in both directions. Furthermore, the injection vibration isolating pipe 8c and/or the piping 10a providing the gas injection passage 16 also prevent vibration propagation between the compressor 11 and the body member 5 in one direction and/or in both directions. suppress.

From another point of view, the compressor 11 may vibrate relative to the body member 5. The vibration isolating bush 7c allows small movements of the compressor 11 relative to the body member 5. This vibration may be limited to an amplitude that the support member 7 allows. Similarly, the suction vibration isolating pipe 8a and the discharge vibration isolating pipe 8b allow small movements of the compressor 11 relative to the body member 5. Furthermore, the injection vibration isolating tube 8c also allows small movements of the compressor 11 relative to the body member 5.

When the compressor 11 vibrates, the attachment member 7b may vibrate and be displaced together with the compressor 11. However, the vibration isolating bush 7c absorbs the displacement. As a result, propagation of vibrations from the attachment member 7b to the base member 7a is suppressed. The vibrations of the compressor 11 may propagate to a fixed portion of the body member 5 to which the pipe 10a is fixed via the pipe 10a. However, the suction vibration isolating pipe 8a and the discharge vibration isolating pipe 8b suppress the propagation of vibrations via the piping 10a. Furthermore, the injection vibration isolating pipe 8c also suppresses the propagation of vibrations via the pipe 10a.

When the body member 5 vibrates, the base member 7a may vibrate and be displaced together with the body member 5. However, the vibration isolating bush 7c absorbs the displacement. As a result, propagation of vibrations from the body member 7a to the attachment member 7b is suppressed. The vibrations of the body member 5 may propagate to the compressor 11 via the piping 10a. However, the suction vibration isolating pipe 8a and the discharge vibration isolating pipe 8b suppress the propagation of vibrations via the piping 10a. Furthermore, the injection vibration isolating pipe 8c also suppresses the propagation of vibrations via the pipe 10a.

Returning to FIG. 1, the non-compression cycle device 20 may be referred to as a secondary cycle in comparison with the compression cycle device 10. The non-compression cycle device 20 directly exchanges heat with the heat load 2 in the temperature adjustment device 1 . The inside of the non-compression cycle device 20 is filled with a secondary medium different from the refrigerant. The secondary medium may be a gas or a liquid. Secondary media may be selected with emphasis on ease of availability in the market. The secondary medium may be water, antifreeze, or a mixture thereof. The non-compression cycle device 20 is responsible for heat transport between the heat load 2 and the compression cycle device 10.

The non-compression cycle device 20 includes a pump 21, a heat load heat exchanger 22, and a receiver heat exchanger 23. Furthermore, the non-compression cycle device 20 includes a chiller 15. The chiller 15 is shared by both the compression cycle device 10 and the non-compression cycle device 20.

During operation, the non-compression cycle device 20 forms a closed circuit in which a secondary medium circulates. The non-compression cycle device 20 includes a plurality of functional parts. A medium passage is formed between two adjacent functional parts in the secondary medium path to mechanically connect them. A media passage provides fluid communication between the two functional components. The media passageway may be provided by piping 20a. The piping 20a is provided by a metal tube such as copper or aluminum, or a resin tube made of rubber or elastomer.

The pump 21, the heat load heat exchanger 22, the receiver heat exchanger 23, and the chiller 15 are arranged annularly in this order. In the closed circuit, the pump 21, the heat load heat exchanger 22, the receiver heat exchanger 23, and the chiller 15 are arranged so that the secondary medium flows in this order. In the illustrated example, the secondary medium flows in a clockwise direction. In the following description, the terms "upstream" and "downstream" in the non-compression cycle device 20 indicate upstream and downstream in the flow direction of the secondary medium.

The non-compression cycle device 20 includes a pump 21. Pump 21 is driven by an electric motor. Pump 21 is also called an electric pump. The pump 21 circulates the secondary medium within the non-compression cycle device 20 .

The non-compression cycle device 20 includes a heat load heat exchanger 22 . The heat load heat exchanger 22 is arranged between the pump 21 and the receiver heat exchanger 23. The heat load heat exchanger 22 is arranged downstream of the pump 21. The heat load heat exchanger 22 is arranged upstream of the receiver heat exchanger 23. The heat load heat exchanger 22 exchanges heat between the heat load 2 and the secondary medium. In this embodiment, the heat load 2 is air 3. Air 3 is air that is flowed into the air conditioning unit for indoor air conditioning. The heat load heat exchanger 22 is also called a user-side heat exchanger.

The non-compression cycle device 20 includes a receiver heat exchanger 23. Receiver heat exchanger 23 is arranged between heat load heat exchanger 22 and chiller 15. Receiver heat exchanger 23 is arranged downstream of heat load heat exchanger 22 . Receiver heat exchanger 23 is arranged upstream of chiller 15. The receiver heat exchanger 23 exchanges heat between the refrigerant and the secondary medium in the receiver 13 . Receiver heat exchanger 23 is arranged inside receiver 13. The receiver heat exchanger 23 is a tubular member that passes through the receiver 13 in the flow of the secondary medium.

Receiver heat exchanger 23 is arranged such that at least a portion of receiver heat exchanger 23 is positioned in liquid region LR within receiver 13 . Receiver heat exchanger 23 is arranged in the lower part of receiver 13 . The receiver heat exchanger 23 is located in the lower region of the receiver 13, including the lowest portion. Receiver heat exchanger 23 is arranged in the lower region of receiver 13 so as to contact the liquid refrigerant within receiver 13 . A portion of the receiver heat exchanger 23 may reach the gas region within the receiver 13 . Alternatively, the receiver heat exchanger 23 may be placed on top of the receiver 13 to exchange heat with the refrigerant in the gas region within the receiver 13.

The non-compression cycle device 20 includes a chiller 15 shared with the compression cycle device 10. Chiller 15 is arranged between receiver heat exchanger 23 and pump 21 in non-compression cycle device 20 . The chiller 15 is arranged downstream of the receiver heat exchanger 23 in the flow of the secondary medium. The chiller 15 is arranged upstream of the pump 21 in the flow of the secondary medium. The chiller 15 enables heat exchange between the secondary medium and the refrigerant. The chiller 15 cools the secondary medium using the refrigerant flowing through the compression cycle device 10 .

The chiller 15 thermally couples the compression cycle device 10 and the non-compression cycle device 20 in series. The non-compression cycle device 20 includes at least one heat load heat exchanger 22 for exchanging heat with the heat load 2 . As a result, the compression cycle device 10 is configured to exchange heat with the heat load 2 via the chiller 15 and the non-compression cycle device 20. Furthermore, the compression cycle device 10 and the non-compression cycle device 20 exchange heat between the refrigerant in the receiver 13 and the secondary medium in the receiver heat exchanger 23.

In this embodiment, when the temperature adjustment device 1 is operated, the compressor 11 is operated, and at the same time, the pump 21 is operated. The refrigerant cools the secondary medium in the chiller 15. The cooled secondary medium reduces the temperature of the heat load 2 in the heat load heat exchanger 22 . Thereby, the temperature adjustment device 1 functions as a device that cools the thermal load 2.

The secondary medium flowing out from the heat load heat exchanger 22 cools the refrigerant in the receiver 13 in the receiver heat exchanger 23, thereby lowering the temperature of the refrigerant. At this time, the secondary medium of the non-compression cycle device 20 is a liquid, for example water. In this case, higher heat exchange efficiency is achieved than with gas.

In this embodiment, the temperature of the secondary medium increases in the receiver heat exchanger 23, but the temperature of the secondary medium is cooled again in the chiller 15. The heat load heat exchanger 22 is disposed upstream of the receiver heat exchanger 23 and downstream of the chiller 15. As a result, in the heat load heat exchanger 22, the air 3 of the heat load 2 can be cooled.

In the receiver heat exchanger 23, the secondary medium removes heat from the refrigerant. As a result, the enthalpy of the refrigerant in the receiver 13 is reduced, and the pressure can be lowered. As a result, the subcooling of the refrigerant in the compression cycle device 10 may increase. In the chiller 15 as an evaporator, the enthalpy difference can be increased, and as a result, the cooling efficiency of the compression cycle device 20 is improved.

Further, the secondary medium whose temperature has increased in the receiver heat exchanger 23 increases the temperature of the secondary medium passage 15b of the chiller 15, and as a result, increases the temperature of the refrigerant passage 15a of the chiller 15. An increase in the temperature of the refrigerant passage 15a in the chiller 15 increases the pressure of the refrigerant at the suction port 11a of the compressor 11. As a result, power consumption in the compressor 11 is suppressed.

Furthermore, the receiver heat exchanger 23 exchanges heat with the refrigerant within the receiver 13. As a result, separation between the gas and liquid components of the refrigerant (separation between the gas refrigerant and the liquid refrigerant) within the receiver 13 is improved. As a result, the amount of refrigerant charged for the compression cycle device 10 to obtain the required subcooling can be suppressed. In other words, since the liquid component is reliably stored in the receiver 13 with a relatively small amount of refrigerant charged, subcooling is easily obtained. As a result, the amount of refrigerant charged in the compression cycle device 10 can be suppressed. In particular, even when the compression cycle device 10 is operated as a heat pump cycle, the amount of refrigerant charged in the compression cycle device 10 can be suppressed.

In this embodiment, the compressor 11 vibrates relative to the body member 5. However, a non-compressive cycle device 20 through which the secondary medium flows provides heat exchange at the receiver 13. Therefore, vibrations of the compressor 11 are less likely to propagate to the receiver 13 than in a configuration in which the piping on the suction side of the compressor 11 exchanges heat with the receiver 13. As a result, a receiver cycle device in which vibration of the receiver 13 is suppressed is provided. Suppression of vibration suppresses damage to the receiver 13 or the piping 10a related to the receiver 13. Suppression of vibration suppresses noise caused by vibration of the receiver 13.

Second Embodiment This embodiment is a modification based on the previous embodiment. In the embodiment described above, the heat load 2 is air 3. Instead, in this embodiment, thermal load 2 is battery 204 (BATT).

The battery 204 is a battery that supplies power to the electric motor. The battery 204 is a power battery that supplies power to a moving electric motor of a moving body. The battery 204 is also a battery for accessory equipment that supplies power to the compressor 11 and the pump 21. A mobile object may be equipped with another battery as a battery for an accessory device. The battery 204 has an appropriate temperature range for efficient charging and discharging. For example, the battery 204 generally generates heat during the charging and discharging process. Therefore, the temperature of the battery 204 may exceed an appropriate temperature range. In this case, the temperature adjustment device 1 is used to lower the temperature of the battery 204. From another perspective, when the environmental temperature is low, such as in winter, the temperature of the battery 204 may fall below an appropriate temperature range. In this case, the temperature adjustment device 1 is used to increase the temperature of the battery 204.

In FIG. 3 , the non-compression cycle device 20 includes a heat load heat exchanger 222 . The heat load heat exchanger 222 enables heat exchange between the secondary medium and the battery 204. The heat load heat exchanger 222 may directly exchange heat between the secondary medium and the battery 204. For example, the heat load heat exchanger 222 may bring the secondary medium piping and the battery 204 into direct contact. Alternatively or additionally, the heat load heat exchanger 222 may indirectly exchange heat between the secondary medium and the battery 204 via air.

The temperature of the secondary medium heated by reducing the temperature of the battery 204 in the heat load heat exchanger 222 is still lower than the temperature of the refrigerant in the receiver 13. As a result, the secondary medium also cools the refrigerant in the receiver heat exchanger 23, reducing the temperature of the refrigerant. This embodiment also provides the same effects as the preceding embodiment.

Third Embodiment This embodiment is a modification based on the previous embodiment. In the above embodiment, the heat load 2 is the air 3 or the battery 204. Instead, in this embodiment, the heat load 2 is both the air 3 and the battery 204.

In FIG. 4 , the non-compression cycle device 20 includes a heat load heat exchanger 222 . The heat load heat exchanger 222 is called a first heat exchanger.

The compression cycle device 10 includes a bypass passage 318 through which the refrigerant flows without passing through the chiller 15. Bypass passage 318 is arranged between pressure reducer 14 and compressor 11. Bypass passage 318 branches refrigerant from a region between pressure reducer 14 and chiller 15 . Bypass passage 318 allows refrigerant to join the region between chiller 15 and compressor 11 .

The compression cycle device 10 includes a heat load heat exchanger 319. The heat load heat exchanger 319 is called a second heat exchanger. A heat load heat exchanger 319 is arranged in the bypass passage 318. The heat load heat exchanger 319 is arranged between the pressure reducer 14 and the compressor 11. The heat load heat exchanger 319 is arranged downstream of the pressure reducer 14. The heat load heat exchanger 319 is arranged upstream of the compressor 11. The heat load heat exchanger 319 is arranged in parallel with the chiller 15. The heat load heat exchanger 319 exchanges heat between the heat load 2 and the refrigerant. The heat load 2 is air 3. Air 3 is conditioned air that is flown for indoor air conditioning. The heat load heat exchanger 319 is also called a user-side heat exchanger.

According to this embodiment, the temperature of the battery 204 can be lowered in the heat load heat exchanger 222. The secondary medium also cools the refrigerant in the receiver heat exchanger 23, reducing the temperature of the refrigerant. Furthermore, in this embodiment, the air 3 can be cooled by the heat load heat exchanger 319. This embodiment also provides the same effects as the preceding embodiment.

Other Embodiments The disclosure in this specification, drawings, etc. is not limited to the illustrated embodiments. The disclosure encompasses the illustrated embodiments and variations thereon by those skilled in the art. For example, the disclosure is not limited to the combinations of parts and/or elements illustrated in the embodiments. The disclosure can be implemented in various combinations. The disclosure may have additional parts that can be added to the embodiments. The disclosure includes those in which parts and/or elements of the embodiments are omitted. The disclosure encompasses any substitutions or combinations of parts and/or elements between one embodiment and other embodiments. The disclosed technical scope is not limited to the description of the embodiments. The technical scope of some of the disclosed technical scopes is indicated by the description of the claims, and should be understood to include equivalent meanings and all changes within the scope of the claims.

The disclosure in the specification, drawings, etc. is not limited by the scope of the claims. The disclosure in the specification, drawings, etc. includes the technical ideas described in the claims, and further extends to a more diverse and broader range of technical ideas than the technical ideas described in the claims. Therefore, various technical ideas can be extracted from the disclosure of the specification, drawings, etc. without being restricted by the claims.

In the embodiment described above, receiver heat exchanger 23 is located within receiver 13 . Alternatively, the receiver heat exchanger 23 may be arranged on the outer surface of the receiver 13. In this case as well, the receiver heat exchanger 23 enables heat exchange between the refrigerant in the receiver 13 and the secondary medium. For example, if the receiver 13 is cylindrical, the receiver heat exchanger 23 can be placed in contact with the outer surface of the outer peripheral wall of the receiver 13. For example, the receiver heat exchanger 23 may be helically arranged so as to wrap around the outer surface of the outer peripheral wall of the receiver 13.

In the embodiment described above, the refrigerant discharged from the receiver 13 is supplied to the pressure reducer 14. In addition, the compression cycle device 10 may include a supercooler between the receiver 13 and the pressure reducer 14. The supercooler may subcool the liquid refrigerant discharged from the receiver 13 to improve the efficiency of the cycle.

In the embodiment described above, the temperature adjustment device 1 exclusively provides a function as a refrigeration cycle that cools the heat load 2. Alternatively or additionally, the temperature adjustment device 1 may serve as a heat pump cycle for heating the thermal load 2. Even in this configuration, the chiller 15 and the non-compression cycle device 20 provide the function of adjusting the temperature of the heat load 2. Furthermore, the chiller 15 and the non-compression cycle device 20 suppress propagation of vibrations from the compressor 11 to the receiver 13.

In the above embodiment, the vibration isolating component 6 includes both the suction vibration isolating pipe 8a and the discharge vibration isolating pipe 8b. Alternatively, the vibration isolating component 6 may include only one of the suction vibration isolating pipe 8a and the discharge vibration isolating pipe 8b. In order to suppress the propagation of vibrations from the compressor 11 to the receiver 13, it is desirable to include at least the suction vibration isolating pipe 8a.

In the third embodiment, the refrigerant whose pressure has been reduced by the pressure reducer 14 is supplied to both the chiller 15 and the heat load heat exchanger 319. Alternatively, the compression cycle device 10 may include a pressure reducer placed upstream of the chiller 15 and a pressure reducer placed upstream of the heat load heat exchanger 319. Furthermore, in the third embodiment as well, the compression cycle device 10 may include the gas injection passage 16 and the gas-liquid separator 17 provided in the preceding embodiment. Furthermore, the heat load heat exchanger 222 and the heat load heat exchanger 319 can exchange the heat load 2. In this case, the heat load heat exchanger 222 exchanges heat between the secondary medium and the air 3, and the heat load heat exchanger 319 exchanges heat between the refrigerant and the battery 204. Furthermore, the non-compression cycle device 20 may include both the heat load heat exchanger 222 and the heat load heat exchanger 22.

1 temperature control device, 2 heat load, 3 air, 5 body member,
6 vibration isolation parts, 7 buffer members, 8 vibration isolation tubes,
7a base member, 7b attachment member, 7c anti-vibration bushing,
8a Suction vibration isolation pipe, 8b Discharge vibration isolation pipe, 8c Injection vibration isolation pipe,
10 compression cycle device, 11 compressor,
12 radiator, 13 receiver, 14 pressure reducer, 15 chiller,
16 gas injection passage, 17 gas-liquid separator,
20 non-compression cycle device, 21 pump,
22 heat load heat exchanger, 23 receiver heat exchanger,
204 battery, 222 heat load heat exchanger,
318 Bypass passage, 319 Heat load heat exchanger.

Claims (10)

A compressor (11) that compresses refrigerant as a primary medium, a radiator (12) that radiates heat from the refrigerant compressed by the compressor, and separates the refrigerant heat radiated by the radiator into gas refrigerant and liquid refrigerant. a compression cycle device (10) having a receiver (13) for evaporating the refrigerant supplied from the receiver and a chiller (15) for supplying the evaporated refrigerant to the compressor in a closed circuit;
A heat load heat exchanger (22, 222) that exchanges heat with a heat load is provided in a closed circuit in which a secondary medium that exchanges heat with the refrigerant circulates in the chiller, and a heat load heat exchanger (22, 222) that exchanges heat with a heat load, and a heat load heat exchanger (22, 222) that exchanges heat with the refrigerant and the secondary medium and the refrigerant in the receiver. A receiver cycle device comprising a non-compression cycle device (20) having a receiver heat exchanger (23) for exchanging heat. Receiver cycle device according to claim 1, wherein the heat load comprises air (3) flowing into an air conditioning unit for indoor air conditioning. The receiver cycle device according to claim 1, wherein the thermal load includes a battery (204) that supplies power to an electric motor. 2. The receiver cycle device according to claim 1, wherein the heat load includes both air (3) flowing into an air conditioning unit for indoor air conditioning and a battery (204) supplying power to an electric motor. Claim: The compressor is installed in a body member (5) of the utilization device that utilizes the temperature adjustment function of the receiver cycle via vibration isolating parts (6, 7, 8) that suppress vibration propagation. A receiver cycle device according to any one of claims 1 to 4. The receiver cycle device according to claim 5, wherein the receiver heat exchanger is arranged in a lower region of the receiver so as to be in contact with the liquid refrigerant. 7. The receiver cycle device according to claim 6, wherein the non-compression cycle device disposes the receiver heat exchanger downstream of the heat load heat exchanger in the flow of the secondary medium. 7. The receiver cycle apparatus according to claim 6, wherein the non-compression cycle apparatus disposes the chiller downstream of the receiver heat exchanger in the flow of the secondary medium. The receiver cycle device according to claim 7, wherein the non-compression cycle device disposes the chiller downstream of the receiver heat exchanger in the flow of the secondary medium. The receiver cycle device according to claim 9, wherein the receiver heat exchanger is a tubular member that passes through the receiver in the flow of the secondary medium.

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