WO2010098049A1 - Temperature adjusting device for mounting on vehicle - Google Patents

Abstract

A temperature adjusting device for mounting on a vehicle, having a simple configuration which, when an electric part mounted within a temperature adjusting chamber fails, facilitates service replacement, repair, or inspection. An evaporator (21) in a refrigeration cycle is contained within a temperature adjusting chamber (20) comprising a heat insulating wall body (23) provided with: a circulation fan (22); a discharge air path (25); and a return air path (26). A compressor (14), a condenser (15), and a heat dissipation fan for cooling the compressor (14) and the condenser (15) are arranged within a machine chamber (13). A temperature adjusting unit (2) comprising a containing box (11) for containing a circuit board (12), etc. is installed within a napping cabin. The temperature in a target space is adjusted by discharging cool air or warm air created by the evaporator into the space. A relay connector (36) for connecting a wire bundle (30) from the circuit board (12) in the containing box and a wire bundle (37) from electric parts within the temperature adjusting chamber is disposed near the temperature adjusting chamber.

Description

Automotive temperature controller

This invention relates to the structure of the vehicle-mounted temperature control apparatus which installs in the nap cabin etc. in the cab of a truck, and blows off the air cooled or heated.

Conventionally, a driver's cab of a truck or the like is provided with a bedroom for sleeping in a cabin, and is configured to lie down at any time to sleep and sleep.

And when sleeping in the summer, we have secured a good sleep by driving a car air conditioner and air-conditioning the room, but the air conditioning of the whole room by operating the air conditioner consumes a large amount of power, and further idling Therefore, not only the power consumption, but also the impact on global warming due to the huge amount of carbon dioxide emission was significant.

On the other hand, as shown in FIG. 9, the space is formed by circulating air from an air conditioner 52 having a heat exchanger 66 and a blower 68 in a sleeping bag 56 in which a space 78 in which a person A lies is formed. Patent Document 1 discloses a configuration in which waste of energy resources and environmental pollution are suppressed by cooling the inside of 78 and operating the refrigerator itself with low power.

Further, in Patent Document 2 shown in FIG. 10, a heat exchanger is provided at one end portion in the longitudinal direction of a horizontally and flatly extending mat 86 provided on a floor between a rear wall of a driver's cab and a driver's seat. The structure of the air circulation type mat 81 is described in which heat exchange air is supplied and the supplied air flows in the air-permeable mat 87 so that a comfortable feeling can be obtained for the human A.

Further, for the sleeping bag described in Patent Document 1 and the mat device described in Patent Document 2, the present applicants attached a cooling unit driven by a storage battery in a nap cabin at the rear of the driver's seat and evaporated. Invented an in-vehicle temperature control apparatus configured to blow out cold air or warm air generated by a vessel into a driver's seat and / or a nap cabin, or both, and filed as Japanese Patent Application No. 2008-229394. .

JP 2007-098044 A JP 2007-105084 A

However, when installing the sleeping bag described in Patent Document 1 or the mat device described in Patent Document 2 on a vehicle body such as a truck, a relatively large air conditioner must be installed in the narrow cabin space together with the sleeping bag and the mat. I must.

For this reason, the installation configuration and installation work become extremely complicated and costly, such as mounting at the same time when manufacturing an automobile for compactness, and piping connection between the separated indoor side cooler and outdoor unit during installation. It had the problem of becoming high.

In addition, the temperature control device described in the patent application by the applicant of the present patent application has a compact configuration and suppresses resource waste and environmental pollution by idling stop, and also cools or heats the cooling unit that blows out the heated air into the vehicle. It can be easily attached and can selectively cool or heat not only the nap cabin at the rear of the driver's seat but also the driver's seat.

However, in order to improve the cooling performance, the temperature control chamber (hereinafter referred to as the temperature control chamber) in which the evaporator is arranged is insulated from other machine rooms by a heat insulating partition wall.

As a result, once the refrigeration cycle over the temperature control room and the machine room is combined and assembled, it is extremely difficult to remove the heat insulating partition wall, and if the circulation fan or temperature sensor installed in the temperature control room breaks down, There was a problem that repair and service replacement work became extremely complicated.

The present invention has been made in consideration of the above circumstances, and can be idling stopped with a compact unit configuration, maintaining the heat insulation configuration of the temperature control chamber to improve cooling performance, and with a simple configuration temperature control. It is an object of the present invention to provide an on-vehicle temperature control device that can easily perform service replacement and repair inspection work when an electrical component disposed indoors fails.

In order to solve the above problems, an on-vehicle temperature control device according to the present invention forms a refrigeration cycle by connecting a compressor, a condenser, and an evaporator, which are supplied with drive power by a storage battery, in an annular shape, The evaporator is housed in a temperature control chamber formed by a circulation fan and a heat insulating wall having a blow-off air passage and a return air passage, and the compressor, the condenser, and a heat radiating fan for cooling them are placed in the machine compartment. A temperature control unit provided with a storage box for storing a substrate or the like is mounted in the nap cabin at the rear of the driver's seat, and the cool air or warm air generated by the evaporator is placed in the nap cabin or in the driver's seat, or The temperature of the target space is adjusted by blowing to both sides, and the bundle line from the substrate of the storage box and the bundle line from the electric parts in the temperature adjustment chamber are connected. Characterized in that the connector is arranged in the vicinity of the temperature adjusting.

According to the present invention, a temperature control space in a state where the engine is stopped can be obtained, and a compact and simple configuration in which the heat insulation performance of the temperature control chamber is improved. Service replacement and repair / inspection work in the event of a failure can be easily performed.

It is a top view of the track | truck which provided the vehicle-mounted temperature control apparatus of the Example of this invention. It is a perspective view of the cooling unit in FIG. It is a perspective view of the state which removed the outer plate | board and the ceiling board from the cooling unit of FIG. It is a top view of the machine room part of FIG. It is a cross-sectional view of the temperature control chamber part of FIG. It is the schematic of the cooling mat in FIG. It is a perspective view from the back which removed the outer plate etc. from the cooling unit of FIG. It is a perspective view of the principal part of FIG. It is sectional drawing which shows the sleeping bag of a prior art example. It is sectional drawing of the air circulation type mat | matte which shows another prior art example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a plan view of a front part of a truck equipped with a temperature control device 1 according to the present invention. The temperature control device 1 is installed in a rear cabin 4 of a driver's seat 3 used as a nap room. A cooling unit 2 as a unit and a storage battery 5 that drives the cooling unit 2 are formed.

The rear cabin 4 is provided with the cooling unit 2 along the outer wall at the rear position on the passenger seat side, and the user A lies on the side so that the width direction of the vehicle body is the longitudinal direction with respect to the cooling unit 2. A cooling mat 6 is installed.

The storage battery 5 is provided exclusively for the driving power source of the cooling unit 2 separately from the storage battery for the truck, and is charged when the automobile engine is driven. The storage battery 5 is provided at the lower part of the vehicle body outside the rear cabin 4. It is arranged.

The cooling unit 2 is shown in FIG. 2 as a whole perspective view, and is also a perspective view from the front side in a state where an outer plate 7 made of a thin steel plate and a back cover 8 and a top cover 9 described later are removed from the main body. As shown in FIG. 3, a frame of the main body is formed by the angle member 10.

A storage box 11 is arranged at the top of the main body to store a substrate 12 on which a microcomputer for controlling electrical components is mounted, and a machine room 13 is provided at the bottom as shown in FIG.

This machine room 13 includes a compressor 14 that compresses and discharges refrigerant that forms part of the refrigeration cycle, a condenser 15 that receives and discharges the discharged high-temperature and high-pressure refrigerant, and high-temperature components such as the condenser 15. A heat dissipating fan 16 and the like for cooling are installed on a partition plate 17 formed of a rigid steel plate or the like. An exhaust duct 19 is formed on the bottom surface of the machine chamber 13 so as to extend downward to discharge the air heat-exchanged by driving the heat radiating fan 16 to the outside.

Below the partition plate 17, as shown in a cross-sectional view in FIG. 5, an evaporator 21 that receives the refrigerant from the condenser 15 and evaporates it to generate cold air is disposed at a position near the front of the center. Are arranged in a standing state over the width direction of the front surface.

Further, a temperature control chamber 20 is formed in which a circulation fan 22 for blowing cool air to the cooling mat 6 to be cooled is provided, and this temperature control chamber 20 becomes a cooling chamber for supplying the cool air to the cooling mat 6. In order to suppress heat leakage, a heat insulating partition 23 made of a foamed polystyrene plate or the like disposed on the inner surface side of the outer plate 7 covers the peripheral wall including the upper and lower surfaces to form a heat insulating space.

The evaporator 21 is composed of a refrigerant pipe formed by meandering and a large number of fins attached to the outer peripheral surface of the refrigerant pipe, and has a predetermined width and height and a small depth. It has become a horizontally long rectangular parallelepiped.

The circulation fan 22 is formed of a sirocco fan, and extends in the depth direction of the temperature control chamber 20 on the side of the temperature control chamber 20 on one end side of the evaporator 21 so as to be orthogonal to the longitudinal direction of the evaporator 21. Are juxtaposed.

Although not particularly illustrated, a dew receiving bowl inclined downward toward one side is formed on the bottom surface of the temperature control chamber 20 corresponding to the lower surface of the evaporator 21, and the defrost water of the evaporator 16 is The air flows into the exhaust duct 19 from the inclined lower end and flows out of the vehicle.

A cylindrical blowing air passage 25 projects outwardly in front of the installation portion of the circulation fan 22 in the temperature control chamber 20, and a schematic structure of the blowing air passage 25 is shown in FIG. The cool air intake 6a is connected so that cool air is introduced into the air circulation type cooling mat 6 disposed on the vehicle body bottom plate 4a in the front side space of the cooling unit 2.

A return air passage 26 is provided on the front surface opposite to the width direction of the evaporator 21 with respect to the attachment position of the blow-off air passage 25 so as to protrude in the same manner as the blow-off air passage 25. The cool air circulated and cooled in the interior is caused to flow from the return port 6b to the one end side of the evaporator 21 in the temperature control chamber 20 through the return air passage 26.

Although not particularly illustrated, an extension duct for branching a cool air flow path and supplying cool air is connected to a part of the blowing air passage 25, and its end extends to the upper part of the rear cabin 4 and the driver's seat 3. The cool air from the evaporator 21 may be supplied in a spot manner.

An air temperature sensor (hereinafter referred to as an air temperature sensor) 27 is disposed in a part of the return air passage 26, and flows through the circulation air passage 6c of the cooling mat 6 and returns from the return port 6b. The temperature of the air reaching the air temperature is detected, the operation of the compressor 14 in the cooling unit 2 is controlled, the cooled air is supplied into the circulation air passage 6c, and the temperature desired by the user A in the cooling mat 6 is supplied. Cool down.

As shown in FIG. 7, the periphery of the main body configured as described above is formed by the outer plate 7 as shown in FIG. 7, which is a perspective view from the back side in a state where the outer plate 7 and the like are removed from the main body. The front and left and right side surfaces are covered, and a back cover 8 is attached to the back.

Further, the upper surface opening of the storage box 11 is covered with the upper surface cover 9, and the lower part of the temperature control chamber 20 located at the lowermost surface is placed on the vehicle body bottom plate 4 a which is the floor surface of the rear cabin 4 via a mount. It is fixed with bolts.

An air inlet 28 is provided in the front portion of the machine room 13 of the outer plate 7 for sucking outside air and radiating heat from the components in the machine room 13 such as the condenser 15. A filter 18 is provided to prevent dust from entering the machine room 13. Further, openings 29 and 29 corresponding to the cool air blowing air passage 25 and the return air passage 26 are formed in the front surface corresponding to the temperature control chamber 20 below the outer plate 7.

As described above, the cooling unit 2 has the temperature control chamber 20 disposed below the machine chamber 13, so that the position of the cool air blowing air passage 25 and the return air passage 26 from the temperature control chamber 20 is in the cooling unit 2. In the case where the object to be cooled is disposed near the floor surface, such as the air circulation type cooling mat 6 or the like, the connection configuration is extremely easy and the heat loss is small, so that the efficiency of transmitting cold air is reduced. Can be improved.

Further, since the cold air intake 6a and the return port 6b of the cooling mat 6 installed in the vicinity of the floor can be directly connected to the cold air blowing air passage 25 and the return air passage 26, a long duct member is not required. As a result, the duct space can be reduced and the number of parts and cost can be suppressed.

Since the duct member does not protrude, the appearance can be kept good. At the same time, the storage box 11 is arranged on the upper part of the cooling unit 2, so that the heat dissipation effect of the substrate 12 and the like can be improved. Have

Although the duct member is somewhat long, the positional relationship between the machine room 13 and the temperature control room 20 can be reversed.

With the above configuration, when the compressor 14 in the cooling unit 2 is operated, the refrigerant from the condenser 15 is evaporated to lower the temperature of the evaporator 21 and cool the air in the temperature control chamber 20.

Then, the generated cool air is blown out from the blowing air passage 25 by the circulation fan 22 from the cooling air intake 6a on the cooling mat 6 side to be cooled to the circulation air passage 6c to cool the inside of the cooling mat 6. After the circulation of the air path 6c, the cold air circulation is repeated through the return air path 26b through the return air path 26 into the evaporator 21 in the temperature control chamber 20, and cooled again and blown out.

Thus, as described above, the so-called bundled wire bundled with the wiring from each electrical component such as the circulation fan 22 and the air temperature sensor 27 in the temperature control chamber 20 covered with the heat insulating partition wall 23 is the storage box. 11 is connected to the substrate 12 and is controlled for operation together with the compressor 14 and the heat radiating fan 16 to detect the temperature. In the present invention, the term bundled wire includes wiring from one electrical component.

First, as shown in FIG. 7 and FIG. 8 which is an enlarged view of the main part, the bundle wire 30 from the substrate 12 is pulled out from the back surface of the storage box 11 and passes through the inside of the lower machine chamber 13. It is extended to the temperature control room 20.

Further, the bundle wire 30 reaches the side wall portion through the recessed groove 31 formed on the outer surface of the rear end edge of the heat insulating partition wall 23 forming the temperature control chamber 20, and further formed at the end edge of the side wall portion. It is formed so as to be drawn out to the vicinity of the circulation fan 22 through the same concave groove 31 ′.

A recessed portion 32 is provided in the heat insulating partition wall 23 on the side wall portion from which the bundled wire 30 is drawn, and the end of the bundled wire 30 is connected to the relay connector 33 arranged in the recessed portion 32. Then, the bundled wires 34 from the corresponding circulation fans 22 are extended upward by a predetermined length and connected to the relay connector 33 in the recess 32 located in the vicinity.

As for the connection with the air temperature sensor 27, the bundle wire 30 'from the substrate 12 extends further forward than the vicinity of the circulation fan 22 through the same concave groove 31', and the front end of the side wall portion. Is connected to a relay connector 36 in a recess 35 formed in the heat insulating partition wall 23 (see FIG. 3). In this portion, a bundled wire 37 from an air temperature sensor 27 (not shown) attached to the return air passage 26 is relayed. The connector 36 is connected.

Therefore, in the product state, in order to improve the cooling performance, the temperature control chamber 20 has its peripheral wall insulated from the upper machine room 13 and the outside by the heat insulation partition wall 23, and the machine room 13 and the temperature control room 20 is arranged inseparable by welding connection of a refrigeration cycle formed by the compressor 14, the condenser 15 and the evaporator 21.

However, when electrical components such as the circulation fan 22 and the air temperature sensor 27 disposed in the temperature control chamber 20 fail, the outer plate 7 is removed from the main body and the heat insulating partition wall 23 opened to the outer surface is removed. By disconnecting the relay connector 33 or 36 in the recess 32 or 35, the wiring on the substrate 12 side can be separated without cutting the bundle.

After that, it is only necessary to take out the target electrical component from the inside of the heat insulating partition wall 23 and perform repair or replacement work, and work such as service replacement can be facilitated.

Further, with the above configuration, the bundled wires 30, 34, 37 can be disposed in the outer plate 7 without being exposed to the outer surface of the cooling unit 2, and can be configured to be clean and compact in appearance. it can.

Further, the bundled wires 30, 34, 37 from the circulation fan 22 and the air temperature sensor 27 are separated from each other with a predetermined distance from the evaporator 21 installed in the temperature control chamber 20, and The condenser 15 disposed on the front surface is also sufficiently separated from each other, and the bundled wires 30, 34, 37 due to the proximity to the cooling fins and the heat radiating fins can be prevented from being damaged or frozen.

The cooling mat 6 as a cooling object in each of the above-described structures cools a human body that enters the upper part or inside by introducing cold air into the internal cavity. The configuration is not limited, and any configuration may be used as long as the cooling unit 2 and the object to be cooled cannot be integrated from the form and installation space.

In the above embodiment, the cooling unit 2 generates cool air and blows it out to the cooling mat 6 that is the object to be cooled. However, in contrast to the cool air, warm air is generated and blown into the warm air. In this case, a four-way valve is provided so as to connect the upstream side and the downstream side of the compressor in the refrigeration cycle, and the evaporation is performed by switching the refrigerant flow path. The condenser 16 may be used as a condenser which is a heat exchanger on the high temperature side, and the warm air from the evaporator 21 that has reached a high temperature may be blown out.

According to the present invention, it is possible to obtain a temperature control space in a state where the engine is stopped, and it can be applied to service replacement and repair inspection work at the time of failure of an electrical component disposed in the temperature control chamber.

1 Temperature Controller 2 Cooling Unit 3 Driver's Seat 4 Rear Cabin 5 Storage Battery 6 Cooling Mat 7 Outer Plate 8 Back Cover 9 Top Cover 10 Angle Material 11 Storage Box 12 Substrate 13 Machine Room 15 Condenser 16 Heat Dissipation Fan 19 Exhaust Duct 20 Temperature Control Chamber 21 Evaporator 22 Circulating fan 23 Heat insulation partition wall 25 Outlet air passage 26 Return air passage 27 Air temperature sensor 28 Air inlet 30, 30 ', 34, 37 Bundling 31, 31' Groove 32, 35 Recess 33, 36 Relay connector

Claims (5)

1. A compressor, a condenser, and an evaporator, which are supplied with driving power by a storage battery, are connected in an annular shape to form a refrigeration cycle, and the evaporator in the refrigeration cycle is connected to a circulation fan, a blowing air path, and a return air path. A temperature control unit that is housed in a temperature control chamber formed of a heat insulating wall having the compressor, the condenser, and a radiating fan that cools the compressor, a condenser, and a storage box that stores a substrate and the like. Is mounted in the nap cabin at the rear of the driver's seat, the cold air or warm air generated by the evaporator is blown into the nap cabin or the driver's seat, or both, and the temperature of the target space is adjusted,
   A vehicle-mounted temperature control device, wherein a relay connector for connecting a bundled wire from a substrate of the storage box and a bundled wire from an electrical component in the temperature control chamber is disposed in the vicinity of the temperature control chamber.
2. The on-vehicle temperature control device according to claim 1, wherein the storage box is disposed at an upper portion, a machine room is installed below the storage box, and the temperature control chamber is disposed at a lowermost portion.
3. The on-vehicle temperature control according to claim 1, wherein the electrical component in the temperature control chamber connected to the relay connector is a temperature sensor that detects the temperature of the evaporator or the temperature of the intake air from the target space. apparatus.
4. The on-vehicle temperature control device according to claim 1, wherein the electrical component in the temperature control chamber connected to the relay connector is the circulation fan.
5. The front surface of the cabinet forming the temperature control unit is widened, and the blowing air passage and the return air passage of the temperature control chamber are provided on the front surface, and the evaporator is disposed in the width direction of the front surface. The bundled wire is introduced into the temperature control chamber portion from the back side of the main body of the temperature control unit and is connected to the bundle wire on the temperature control chamber side via the relay connector. The vehicle-mounted temperature control apparatus as described.

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