JP2019209777A - On-vehicle cooling device - Google Patents

Abstract

To provide an on-vehicle cooling device that has a compressor, a condenser and an evaporator arranged compactly and efficiency in a cabinet.SOLUTION: An on-vehicle cooling device 1 that has an electrical compressor 23, an evaporator 30 and a condenser 20 integrally built in comprises: a cabinet 2 having an internal space; a duct 10 provided in the cabinet 2; and an evaporator fan 31 provided in the cabinet 2, in which the on-vehicle cooling device is provided with a suction port 16 before the cabinet 2 and with a blowout port 17 behind the cabinet 2; the electrical compressor 23 and condenser 20 are housed in the internal space closely to the suction port 16, and the evaporator 30 is housed in the internal space closely to the blowout port 17; the duct 10 is piped from the suction port 16 to the evaporator 30 closely to the suction port 16 in the cabinet 2; and the evaporator fan 31 blows cooling air from the duct 10 toward the blowout port 17 via the evaporator 30.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an in-vehicle cooling device that cools the interior of an automobile.

  In Patent Document 1, the refrigerant is compressed by a compressor, the high-pressure refrigerant is condensed by a condenser (condenser), the pressure of the liquefied refrigerant is reduced by an expansion valve, and the low-temperature and low-pressure refrigerant is removed by an evaporator (evaporator). ), A refrigerating cycle that absorbs heat by vaporizing is disclosed. The refrigeration cycle disclosed in Patent Document 1 is used as a refrigeration apparatus for cooling a refrigeration container of an automobile. The refrigeration cycle is also used for cooling the passenger compartment. The cooling device using the refrigeration cycle includes the above-described evaporator, condenser, compressor, expansion valve, and the like. The evaporator is generally disposed indoors, and the condenser is generally disposed outdoors because heat exchange with the atmosphere is required. The location of the compressor is generally not limited. An evaporator, a condenser, a compressor, and the like are connected by a refrigerant pipe such as a steel pipe. However, since refrigerant piping work is limited to specific operators by law, unqualified persons cannot install a cooling device in a completed vehicle. An in-vehicle cooling device in which a compressor, a condenser, an evaporator, a refrigerant pipe, and the like are incorporated in advance is desired so that even an unqualified person can install the cooling device in a completed vehicle. In particular, a compact in-vehicle cooling device is desired.

JP 2006-205797 A

  By the way, in order to make the cooling device compact, it is necessary to accommodate the compressor, the condenser, the expansion valve, the evaporator, and the like in the cabinet with an efficient layout to reduce the size of the cabinet.

  Therefore, the present invention has been made in view of the above circumstances, and an object thereof is to provide an in-vehicle cooling device in which a compressor, a condenser, and an evaporator are arranged in a cabinet efficiently in a compact manner. Moreover, an object of this invention is to improve the freedom degree of the installation location of the vehicle-mounted cooling device.

  In order to solve the above-described problems, an in-vehicle cooling device that includes an electric compressor, an evaporator, and a condenser, and in which the electric compressor, the evaporator, and the condenser are integrated, includes a cabinet having an internal space, and the cabinet. A duct provided, and an evaporator fan provided in the cabinet, a suction port is provided in a front part of the cabinet, a blower outlet is provided in a rear part of the cabinet, and the electric compressor and the condenser are provided in the interior Stored near the suction port in the space, the evaporator is stored near the air outlet in the internal space, and the duct is piped from the suction port to the evaporator near the suction port in the cabinet, The evaporator fan has cooling air For blowing air toward the air outlet via the evaporator from the duct.

According to the above, the electric compressor and the capacitor are accommodated near the suction port in the internal space, and the duct is piped from the suction port to the evaporator near the suction port in the cabinet. The space around the capacitor can be used effectively as the installation space for the duct, and the front and rear length of the cabinet can be shortened. Therefore, the cabinet and the vehicle-mounted cooling device can be reduced in size.
Further, since the electric compressor is driven by electric power, it is not necessary to install a power source such as an internal combustion engine in the vicinity of the electric compressor, and the degree of freedom of the installation location of the in-vehicle cooling device is improved.

Cooling air passes through the evaporator in the vertical direction of the cabinet by the ventilation of the evaporator fan.
According to the above, the longitudinal length of the cabinet can be shortened, and the cabinet can be reduced in size.

The on-vehicle cooling device is provided in the cabinet, and includes a partition wall in which the internal space is divided into a heat exchange chamber on the suction side and a cooling chamber on the outlet side, and a communication hole is formed. The compressor and the condenser are accommodated in the heat exchange chamber, the evaporator is accommodated in the cooling chamber, and the duct is piped from the suction port to the communication hole in the heat exchange chamber.
According to the above, since the duct is piped from the suction port to the communication hole in the heat exchange chamber, the space in the heat exchange chamber in which the electric compressor and the condenser are accommodated can be effectively used as a duct installation space, and the cabinet. Can be miniaturized.

The evaporator fan is accommodated in the cooling chamber.
According to the above, the space in the cooling chamber in which the evaporator is accommodated can be effectively used as the installation space for the evaporator fan, and the cabinet can be downsized.

The condenser is installed inclined with respect to the vertical direction of the bottom surface of the heat exchange chamber.
According to the above, the vertical dimension of the cabinet can be suppressed, and the condenser can be efficiently arranged in the heat exchange chamber. Therefore, the cabinet can be downsized.

The on-vehicle cooling device is housed in the heat exchange chamber, includes a condenser fan that blows air to the condenser, and a ventilation port that communicates from the outside of the cabinet to the heat exchange chamber is formed in the cabinet.
According to the above, not only the condenser but also the compressor can be forced-air cooled by the condenser fan.

The evaporator fan is a centrifugal fan, the rotating shaft of the evaporator fan passes through the evaporator, the outlet is disposed radially outside the rotating shaft of the evaporator fan, and the cooling air sucked from the evaporator by the evaporator fan Is blown out radially outward of the rotating shaft.
According to the above, since the rotating shaft of the centrifugal fan passes through the evaporator, when viewed in the direction of the rotating shaft of the centrifugal fan, the overlapping region of the centrifugal fan and the evaporator is wide. Therefore, the size of the cooling chamber can be minimized and the cabinet can be miniaturized.

The in-vehicle cooling device is provided in the cabinet with an expansion valve housed in the cabinet, and connects the electric compressor, the condenser, the expansion valve, and the evaporator 30, and uses a refrigerant as the electric compressor and the condenser. And a pipe that circulates in the order of the expansion valve and the evaporator.
According to the above, even a person who is not qualified to handle the refrigerant can install the in-vehicle cooling device in the vehicle.

  According to the embodiment of the present invention, the space around the electric compressor and the condenser can be effectively used as the installation space of the duct, and the front and rear length of the cabinet can be shortened. Therefore, the vehicle-mounted cooling device can be reduced in size.

It is a perspective view of a vehicle-mounted cooling device. It is a perspective view of a vehicle-mounted cooling device. It is a perspective view inside a vehicle-mounted cooling device. It is a side view inside a vehicle-mounted cooling device. It is a top view inside a vehicle-mounted cooling device. It is a top view inside a vehicle-mounted cooling device. It is a side view of the inside of the vehicle-mounted cooling device of a modification.

  Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments described below are given various technically preferable limitations for carrying out the present invention, but the scope of the present invention is not limited to the following embodiments and illustrated examples.

  FIG. 1 is a perspective view of the in-vehicle cooling device 1 viewed from the front side, the upper side, and the right side. FIG. 2 is a perspective view of the in-vehicle cooling device 1 viewed from the rear side, the upper side, and the left side. FIG. 3 is a perspective view showing the interior of the in-vehicle cooling device 1 as an overhead view. FIG. 4 is a side view showing the inside of the in-vehicle cooling device 1. 5 and 6 are plan views showing the inside of the in-vehicle cooling device 1. Here, in FIG. 3, the inside of the cabinet 2 is shown by omitting the illustration of the top panel 5 and the side panel 8 of the cabinet 2. In FIG. 4, the inside of the cabinet 2 is shown by omitting the illustration of the side panel 8 of the cabinet 2. In FIG.5 and FIG.6, the illustration of the top panel 5 of the cabinet 2 is abbreviate | omitted, and the inner side of the cabinet 2 is shown. 3 to 5 show a state where the casing 19 shown in FIG. 6 is removed. In FIG. 4, the flow path casing 12 and the partition wall 15 are shown in a state where they are broken at a plane perpendicular to the paper surface. Here, the suction port 16 of the on-vehicle cooling device 1 is on the upstream side of the flow of cooling air in the on-vehicle cooling device 1, and the blowout port 17 is on the downstream side of the flow of cooling air in the on-vehicle cooling device 1. The upstream side of the cooling air flow is the front side, and the downstream side is the rear side.

  This on-vehicle cooling device 1 is a cooling device that is unitized and modularized. This in-vehicle cooling device 1 is installed under the floor of a cabin of an automobile such as a camper, and the cabin is cooled by the in-vehicle cooling device 1. The in-vehicle cooling device 1 sucks the cooling air in the cabin, cools the sucked cooling air, and blows out the cooled cooling air into the cabin. The in-vehicle cooling device 1 includes a cabinet 2, a duct 10, a partition wall 15, a condenser 20, a condenser fan 21, an expansion valve 22, an electric compressor 23, an evaporator 30, an evaporator fan 31, a control unit 90, and casings 19 and 91.

  The electric compressor 23, the condenser 20, the expansion valve 22 and the evaporator 30 are connected by a pipe 41 provided in the cabinet 2, and the refrigerant circulates in the order of the electric compressor 23, the condenser 20, the expansion valve 22 and the evaporator 30 through the pipe 41. To do. The electric compressor 23 compresses the low-temperature and low-pressure gaseous refrigerant sent from the evaporator 30, so that the refrigerant becomes a high-temperature and high-pressure gas-liquid mixed state. When the condenser 20 exchanges heat between the high-temperature and high-pressure refrigerant sent from the electric compressor 23 and the air outside the condenser 20, the refrigerant is condensed into a low-temperature and high-pressure liquid. When the expansion valve 22 adiabatically expands the low-temperature and high-pressure refrigerant sent from the capacitor 20, the refrigerant becomes a low-temperature and low-pressure mist that is easily vaporized. When the evaporator 30 exchanges heat between the low-temperature and low-pressure refrigerant sent from the expansion valve 22 and the cooling air introduced from the cabin of the automobile via the suction port 16 and the duct 10, the refrigerant absorbs heat. Vaporizing and cooling air is cooled. A low-temperature and low-pressure gaseous refrigerant is sent from the evaporator 30 to the electric compressor 23. The cooling air cooled by the evaporator 30 is sent to the outlet 17 by the evaporator fan 31 and sent out again into the cabin of the automobile.

  The cabinet 2 is a rectangular parallelepiped box and has an internal space. A suction port 16 for sucking the cooling air before cooling is provided in the front part of the cabinet 2, and a blower outlet 17 for blowing out the cooling air after cooling is provided in the rear part of the cabinet 2. Specifically, the suction port 16 is provided in the front panel 3 of the cabinet 2, and the air outlet 17 is provided in the upper part of the rear panel 4 facing the front panel 3. Therefore, although the cabinet 2 is compact, the inlet 16 and the outlet 17 are arranged as far as possible from each other. This is effective for installing the air outlet and the air inlet in the cabin of the automobile apart from each other. For example, the duct from the inlet 16 to the inlet in the cabin can be installed short, and the duct from the outlet 17 to the outlet in the cabin can be installed short. If the air outlet in the cabin is separated from the air inlet, the cold air blown into the cabin from the air outlet will not be immediately sucked into the air inlet, but will be dispersed thoroughly in the cabin. Therefore, the cabin can be cooled evenly.

  In the side panels 7 and 8 of the cabinet 2, a large number of ventilation openings 7 a and 8 a are formed close to the front panel 3. A heat exchange chamber 51, which will be described later, communicates with the outside of the cabinet 2 through these ventilation openings 7a and 8a.

  A partition 15 parallel to the panels 3 and 4 is provided inside the cabinet 2, and the space in the cabinet 2 is separated by the partition 15 into the heat exchange chamber 51 and the outlet 17 on the side of the suction port 16 and the ventilation ports 7 a and 8 a. It is partitioned into a front and rear cooling chamber 52. A communication hole 14 is formed in the lower part of the partition wall 15.

  A casing 91 is attached to the inner surface of the rear panel 4, and the space 92 inside the casing 91 and the cooling chamber 52 are partitioned by the casing 91. A control unit 90 is accommodated in the casing 91. The control unit 90 has a DC-AC converter and a drive controller. The DC-AC converter converts a direct current supplied from a main battery, sub battery or alternator of an automobile into a three-phase alternating current. The drive controller drives the electric compressor 23 by supplying the electric power to the electric compressor 23 when the electric power is supplied from the commercial power source, and electrically drives the output power of the DC-AC converter when the electric power is not supplied from the commercial power source. Supply to the compressor 23. A controller (not shown) arranged in the cab or the like controls the drive controller, whereby the power supplied from the drive controller to the electric compressor 23 is controlled. Further, the controller controls the evaporator fan 31 and the condenser fan 21.

The duct 10 is piped from the suction port 16 to the communication hole 14 of the partition wall 15 in the heat exchange chamber 51, and sends cooling air before cooling from the suction port 16 to the communication hole 14. The duct 10 has a duct body 11 and a flow path casing 12.
The flow path casing 12 is attached to the partition wall 15 on the heat exchange chamber 51 side, and a space 13 surrounded by the flow path casing 12 and the partition wall 15 is formed (particularly, see FIG. 4). The space 13 inside the flow path casing 12 and the cooling chamber 52 are partitioned by the partition wall 15, and the space 13 and the cooling chamber 52 communicate with each other through the communication hole 14.
The duct body 11 is piped from the suction port 16 to the upper portion of the space 13 in the flow path casing 12 in the heat exchange chamber 51.
Since the duct 10 as described above is piped from the suction port 16 to the cooling chamber 52 in the heat exchange chamber 51, the suction port 16 and the outlet 17 can be installed separately.

  In the heat exchange chamber 51, a condenser 20, a condenser fan 21, and an electric compressor 23 are accommodated. The capacitor fan 21 is attached to the capacitor 20. The condenser fan 21 is, for example, a propeller fan. The capacitor 20 is installed in a state inclined toward the side panel 7 from the vertical direction of the inner surface of the bottom panel 6 of the cabinet 2. That is, the capacitor 20 is inclined with respect to the inner surface of the bottom panel 6 and further to the inner surface of the side panel 7. Therefore, the capacitor 20 can be efficiently accommodated in the heat exchange chamber 51. Moreover, the dimension of the up-down direction of the cabinet 2 can be suppressed, and the vehicle-mounted cooling device 1 can be made compact. Therefore, it is not necessary to increase the installation space of the in-vehicle cooling device 1 under the floor of the automobile cabin.

  The electric compressor 23 is disposed closer to the side panel 8 in the heat exchange chamber 51, and the condenser 20 is disposed closer to the side panel 7 in the heat exchange chamber 51 than the electric compressor 23. The condenser fan 21 ventilates between the heat exchange chamber 51 and the outside of the cabinet 2 through the ventilation openings 7 a and 8 a and blows air to the condenser 20 and the electric compressor 23. Specifically, the air outside the cabinet 2 is sucked into the heat exchange chamber 51 through the ventilation port 8 a of the side panel 8, and the airflow passes through the electric compressor 23 and the condenser 20 from the side panel 8 in the heat exchange chamber 51. Then, the air flows toward the side panel 7, and the air in the heat exchange chamber 51 is blown out of the heat exchange chamber 51 through the ventilation port 7 a of the side panel 7. Thereby, the capacitor 20 and the electric compressor 23 are forcibly cooled by air. Since the electric compressor 23 is disposed on the upstream side of the airflow from the condenser 20, the electric compressor 23 can be efficiently air-cooled. The airflow may be reversed.

  The evaporator 30 and the evaporator fan 31 are accommodated in the cooling chamber 52. The evaporator 30 is installed on the bottom panel 6 of the cabinet 2. The evaporator fan 31 is mounted on the evaporator 30. Therefore, the evaporator fan 31 is provided at a position farther from the communication hole 14 than the evaporator 30.

  The evaporator fan 31 is a centrifugal fan, more specifically, a turbo fan or a sirocco fan. The suction port of the evaporator fan 31 is directed to the evaporator 30 below the evaporator fan 31, and the rotating shaft 31 a of the evaporator fan 31 extends in the vertical direction and intersects the evaporator 30. Therefore, as shown in FIG. 5, when viewed from above, that is, when viewed in the direction of the rotating shaft 31 a of the evaporator fan 31, the overlapping region of the evaporator fan 31 and the evaporator 30 is wide. Therefore, the longitudinal length and the lateral width of the cooling chamber 52 can be minimized, and the cabinet 2 can be downsized.

  The position of the evaporator fan 31 in the direction along the rotation shaft 31 a of the evaporator fan 31 is aligned with the position of the blowout port 17, and the blowout port 17 is disposed on the radially outer side of the rotation shaft 31 a of the evaporator fan 31. That is, the installation height of the evaporator fan 31 with respect to the bottom panel 6 is the same as the height of the air outlet 17. As shown in FIG. 6, the evaporator fan 31 is covered with a casing 19 having a U-shaped cross section from above, and the upper side and the left and right sides of the evaporator fan 31 are shielded by the casing 19. Is open inside.

  The evaporator fan 31 blows the cooling air cooled by the evaporator 30 toward the outlet 17. In other words, the evaporator fan 31 blows out the cooling air sucked in from the direction of the rotating shaft 31a, that is, from the lower evaporator 30, to the outside in the radial direction of the rotating shaft 31a. Therefore, the lower side of the evaporator fan 31 has a negative pressure, and the radially outer side of the rotating shaft 31a of the evaporator fan 31 has a positive pressure. Therefore, an air current as shown by an arrow in FIG. 4 is generated. Specifically, the cooling air in the cabin of the automobile is sucked into the suction port 16, and the sucked cooling air is sent to the space 13 in the flow path casing 12 by the duct body 11. The cooling air descends along the partition wall 15 in the flow path casing 12 and flows into the cooling chamber 52 from the space 13 inside the flow path casing 12 through the communication hole 14. In the cooling chamber 52, the cooling air is cooled by the evaporator 30 as it passes upward through the evaporator 30. The cooled cooling air is sucked into the evaporator fan 31 and blown out from the evaporator fan 31 to the outside in the radial direction of the rotating shaft 31a. The cooling air is blown out from the air outlet 17 into the cabin of the automobile.

The above embodiment brings the following advantageous effects.
The in-vehicle cooling device 1 is an electric compressor 23, a condenser 20, an expansion valve 22, and an evaporator 30 that are integrally incorporated. Therefore, even a person who is not qualified to handle the refrigerant can install the in-vehicle cooling device 1 in the completed vehicle.

  Since the electric compressor 23 is driven by electric power, it is not necessary to install a power source such as an internal combustion engine in the vicinity of the electric compressor 23. Therefore, the installation location of the in-vehicle cooling device 1 can be freely designed, and the in-vehicle cooling device 1 can be easily installed in a completed vehicle.

  Since the duct 10 is piped from the suction port 16 to the cooling chamber 52 in the heat exchange chamber 51, the space in the heat exchange chamber 51 can be effectively used as the installation space for the duct 10, and the front and rear lengths of the cabinet 2. Can be made compact. Moreover, even if the cabinet 2 is compact, the suction inlet 16 and the blower outlet 17 can be provided apart.

  In addition, since the evaporator fan 31 is provided in the vicinity of the evaporator 30 downstream of the evaporator 30 with respect to the flow of the cooling air, the rotation axis of the evaporator fan 31 intersects the evaporator 30. Therefore, when viewed in the direction of the rotating shaft 31 a of the evaporator fan 31, the overlapping region of the evaporator fan 31 and the evaporator 30 is wide. Therefore, the longitudinal length and the lateral width of the cooling chamber 52 can be minimized, and the cabinet 2 can be downsized.

  Since the condenser 20 is installed obliquely with respect to the bottom panel 6 and the side panel 7 of the cabinet 2, the vertical dimension of the cabinet 2 can be suppressed, and the condenser 20 is efficiently accommodated in the heat exchange chamber 51. can do. Moreover, the vacant space in the heat exchange chamber 51 can be effectively used as the installation space for the electric compressor 23. Since both the electric compressor 23 and the condenser 20 are accommodated in the heat exchange chamber 51, not only the condenser 20 but also the electric compressor 23 can be forcibly air-cooled by the condenser fan 21.

  Since the suction port of the evaporator fan 31 is disposed above the communication hole 14, the cooling air flows from the bottom to the top in the cooling chamber 52. Therefore, the longitudinal length of the cabinet 2 can be shortened, and the cabinet 2 can be downsized.

  In addition to the components of the refrigeration cycle, that is, in addition to the electric compressor 23, the condenser 20, the expansion valve 22, and the evaporator 30, the fans 21 and 31 are accommodated in the cabinet 2 to provide a compact cooling module.

  As mentioned above, although the form for implementing this invention was demonstrated, the said embodiment is for making an understanding of this invention easy, and is not for limiting and interpreting this invention. Further, the present invention can be changed and improved without departing from the gist thereof, and equivalents thereof are also included in the present invention. Changes from the above embodiment will be described below.

  In the above embodiment, the air outlet 17 is provided in the rear panel 4 as shown in FIG. On the other hand, the blower outlet 17 may be provided in the rear part of the top panel 5, and may connect with the cooling chamber 52 like the modification shown in FIG.

  In this modification, the evaporator fan 31 is attached to the back of the evaporator 30, the suction port of the evaporator fan 31 is directed to the evaporator 30 in front of the evaporator fan 31, and the rotating shaft 31 a of the evaporator fan 31 extends in the front-rear direction to the evaporator 30. Crossed. Therefore, when viewed from behind, that is, when viewed in the direction of the rotating shaft 31 a of the evaporator fan 31, the overlapping region of the evaporator fan 31 and the evaporator 30 is wide. Therefore, the height and the lateral width of the cooling chamber 52 can be minimized, and the cabinet 2 can be reduced in size.

  The position of the evaporator fan 31 in the direction along the rotation shaft 31 a of the evaporator fan 31 is aligned with the position of the blowout port 17, and the blowout port 17 is disposed on the radially outer side of the rotation shaft 31 a of the evaporator fan 31.

  The suction port of the evaporator fan 31 is located above the communication hole 14. The evaporator fan 31 blows out the cooling air sucked in from the direction of the rotating shaft 31a, that is, from the rear evaporator 30, to the outside in the radial direction of the rotating shaft 31a. Therefore, when the cooling air in the cabin of the automobile flows into the cooling chamber 52 via the suction port 16, the duct body 11 and the space 13, the cooling air passes through the evaporator 30 obliquely upward and backward in the cooling chamber 52. The cooling air is cooled by the evaporator 30. The cooled cooling air is sucked into the evaporator fan 31 and blown out from the evaporator fan 31 to the outside in the radial direction of the rotating shaft 31a. The cooling air is blown out from the air outlet 17 into the cabin of the automobile.

DESCRIPTION OF SYMBOLS 1 ... Vehicle-mounted cooling device 2 ... Cabinet 10 ... Duct 14 ... Communication hole 15 ... Bulkhead 16 ... Suction port 17 ... Air outlet 20 ... Capacitor 21 ... Capacitor fan 22 ... Expansion valve 23 ... Electric compressor 30 ... Evaporator 31 ... Evaporator fan 41 ... Pipe 51 ... Heat exchange chamber 52 ... Cooling chamber

Claims (8)

In-vehicle cooling system comprising an electric compressor, an evaporator and a condenser, and incorporating the electric compressor, the evaporator and the condenser integrally,
A cabinet with an internal space;
A duct provided in the cabinet;
An evaporator fan provided in the cabinet,
A suction port is provided at the front part of the cabinet, and an outlet is provided at the rear part of the cabinet.
The electric compressor and the capacitor are accommodated near the suction port in the internal space,
The evaporator is housed near the outlet in the internal space;
An in-vehicle cooling device in which the duct is piped from the suction port to the evaporator near the suction port in the cabinet, and the evaporator fan blows cooling air from the duct toward the outlet through the evaporator. The in-vehicle cooling device according to claim 1, wherein cooling air passes through the evaporator in a vertical direction of the cabinet by blowing of the evaporator fan. Provided in the cabinet, the interior space is divided into a heat exchange chamber on the inlet side and a cooling chamber on the outlet side in the front and rear, and includes a partition wall formed with a communication hole,
The electric compressor and the condenser are accommodated in the heat exchange chamber, the evaporator is accommodated in the cooling chamber, and the duct is piped from the suction port to the communication hole in the heat exchange chamber. The vehicle-mounted cooling device described in 1. The in-vehicle cooling device according to claim 3, wherein the evaporator fan is accommodated in the cooling chamber. The in-vehicle cooling device according to claim 3 or 4, wherein the condenser is installed to be inclined with respect to a vertical direction of a bottom surface of the heat exchange chamber. A condenser fan that is housed in the heat exchange chamber and blows air to the condenser;
The in-vehicle cooling device according to any one of claims 3 to 5, wherein a ventilation port leading from the outside of the cabinet to the heat exchange chamber is formed in the cabinet. The evaporator fan is a centrifugal fan, the suction port of the evaporator fan is directed to the evaporator, the outlet is disposed radially outside the rotating shaft of the evaporator fan, and the evaporator fan sucks from the evaporator The in-vehicle cooling device according to any one of claims 1 to 6, wherein air is blown out radially outward of the rotating shaft. An expansion valve housed in the cabinet;
A pipe provided in the cabinet, connecting the electric compressor, the condenser, the expansion valve, and the evaporator 30, and circulating a refrigerant in the order of the electric compressor, the condenser, the expansion valve, and the evaporator;
An in-vehicle cooling device according to any one of claims 1 to 7, further comprising:

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