Vehicular heat source unit

Abstract

To provide a vehicular heat source unit to which piping can be connected easily.SOLUTION: A vehicular heat source unit (17), which can be arranged inside a vehicle front interior (BR), comprises a longitudinal structure (18) in a longitudinal shape and a supported device (90) supported by the longitudinal structure (18). The supported device (90) comprises, as a water heating system (30a), a refrigerant condenser (22) and a hot water heater (32). A portion located at the lowest position among the longitudinal structure (18) and the supported device (90) is defined as a bottom part (81). An outlet (91a) of a first hot water pipe (91), through which hot water flows toward a vehicle interior (CR), and an inlet (92a) of a second hot water pipe (92), through which hot water flows toward the water heating system (30a), are directed to the rear side and positioned lower than the bottom part (81).SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a vehicle heat source unit that is a heat source for hot water that heats air in a vehicle compartment. [Background technology]

[0002] Prior art related to a thermal management system for a vehicle is disclosed in Patent Document 1. This thermal management system for a vehicle includes an air conditioning unit that is disposed in the vehicle cabin and exchanges heat with the air in the vehicle cabin. The air conditioning unit can cool the air in the vehicle cabin by exchanging heat with a refrigerant, and can heat the air in the vehicle cabin by exchanging heat with hot water.

[0003] The vehicle thermal management system includes various devices for supplying refrigerant and hot water to the air conditioning unit. For example, the hot water circuit through which hot water flows includes a hot water pump that pumps out hot water, a refrigerant condenser that exchanges heat between the hot water and the refrigerant, and a hot water heater that can further heat the hot water heated by the refrigerant condenser.

[0004] When mounting a hot water pump, a refrigerant condenser, and a hot water heater on a vehicle, it is possible to unitize them as a heat source unit that serves as a heat source for hot water. Patent Document 2 discloses a technology for unitizing a plurality of devices. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2022-184446 A [Patent Document 2] U.S. Pat. No. 1,144,0376 Summary of the Invention [Problem to be solved by the invention]

[0006] Ease of installation in a vehicle can be improved by unitizing the various devices provided in the hot water circuit into a heat source unit, following the technology disclosed in Patent Document 2. However, there is room for further improvement when considering the work of connecting the heat source unit and the air conditioning unit with piping after assembling the heat source unit in the vehicle.

[0007] An object of the present invention is to provide a heat source unit for a vehicle to which piping can be easily connected. [Means for solving the problem]

[0008] A vehicle heat source unit (17, 17A, 17B, 17C) that can be arranged inside a vehicle front room (BR) of a vehicle (11) that is forward of a vehicle compartment (CR) in which passengers board, A longitudinal structure (18, 120, 210, 300) having a longitudinal shape; a supported device (90) supported by the longitudinal structure (18, 120, 210, 300); The supported device (90) includes a water heater (30a) through which hot water capable of heating air to be blown into the vehicle compartment (CR) flows, The hot water device (30a) includes a hot water pump (31) that delivers the hot water, a refrigerant condenser (22) that performs heat exchange between the hot water and a refrigerant capable of cooling the air that is blown into the vehicle compartment (CR), and a hot water heater (32) that can further heat the hot water heated by the refrigerant condenser (22), If the lowest portion of the longitudinal structure (18, 120, 210, 300) and the supported device (90) is the lowest portion (81, 121, 211, 32c, 34c), There is provided a heat source unit (17, 17A, 17B, 17C) for a vehicle, characterized in that an outlet (91a) of a first hot water pipe (91) through which the hot water flows from the hot water device (30a) to the vehicle compartment (CR) and an inlet (92a) of a second hot water pipe (92) through which the hot water flows from the vehicle compartment (CR) to the hot water device (30a) face rearward and are located lower than the lowermost part (81, 121, 211, 32c, 34c). Effect of the Invention

[0009] The present invention can provide a vehicle thermal management system including a heat source unit capable of suppressing loss of heat capable of heating the air in the vehicle compartment. [Brief description of the drawings]

[0010] [Figure 1] 1 is a schematic diagram of a vehicle thermal management system including a vehicle heat source unit according to a first embodiment. [Diagram 2] 2 is a perspective view of a vehicle on which the vehicle heat source unit of FIG. 1 can be mounted. [Diagram 3] 2 is a perspective view of a support portion of the longitudinal structure of the heat source unit for a vehicle in FIG. 1 and a device supported by the support portion. [Figure 4] 1 is a perspective view of a support portion of the elongated structure and a cover member that can be hung from the support portion. FIG. [Diagram 5] Fig. 5A is a plan view of a vehicle heat source unit fixed to a vehicle, and Fig. 5B is a diagram illustrating the arrangement of a compressor relative to the vehicle heat source unit. [Figure 6] Fig. 6A is a diagram of the heat source unit for a vehicle as seen from the rear, and Fig. 6B is a diagram of the heat source unit for a vehicle as seen from the left side. [Figure 7] FIG. 11 is an exploded perspective view of a heat source unit for a vehicle according to a second embodiment. [Figure 8] FIG. 11 is a front view of a heat source unit for a vehicle according to a second embodiment. [Figure 9] FIG. 11 is a diagram showing a part of a heat source unit for a vehicle according to a third embodiment. [Figure 10] Fig. 10A is a rear view of the heat source unit for a vehicle according to Example 4. Fig. 10B is a left view of the heat source unit for a vehicle. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] <Example> The embodiment will be described with reference to the attached drawings. Note that left and right refer to the left and right (vehicle width direction) based on the vehicle occupant, and front and rear refer to the front and rear based on the vehicle's traveling direction. In the drawings, Fr indicates front, Rr indicates rear, Le indicates left as seen by the occupant, Ri indicates right as seen by the occupant, Up indicates up, and Dn indicates down.

[0012] <Example 1> (Vehicle Thermal Management Systems) Please refer to Figures 1 and 2. A vehicle 11 can be equipped with a vehicle thermal management system 10 capable of conditioning the air in a vehicle compartment CR in which a passenger can ride, and cooling a battery 49 that stores power for running the vehicle 11. For ease of explanation, only a vehicle body 11a, which is the framework of the vehicle 11, is depicted in Figure 2.

[0013] The vehicle thermal management system 10 includes a refrigerant circuit 20 through which a refrigerant capable of cooling the air in the vehicle compartment CR flows, a hot water circuit 30 through which hot water capable of heating the air in the vehicle compartment CR flows, and a cold water circuit 40 through which cold water capable of cooling the battery 49 flows.

[0014] (Refrigerant circuit) The refrigerant circuit 20 includes a compressor 21 that compresses the refrigerant to a high temperature and high pressure, and a refrigerant condenser 22 that exchanges heat between the high temperature and high pressure refrigerant and hot water. The refrigerant condenser 22 is sometimes called a water condenser. The refrigerant that passes through the refrigerant condenser 22 branches into two.

[0015] One of the branched refrigerants flows into an air refrigerant expansion device 23 capable of expanding the refrigerant. The refrigerant expanded by the air refrigerant expansion device 23 flows into an air-cooling heat exchanger 25 and cools the air passing therethrough. The air cooled by the air-cooling heat exchanger 25 is supplied to the vehicle interior CR as cool air for cooling. The air-cooling heat exchanger 25 is sometimes called an evaporator.

[0016] The other of the branched refrigerants flows into a chilled water cooling expansion device 24 capable of expanding the refrigerant. The refrigerant expanded by the chilled water cooling expansion device 24 flows into a chilled water cooling heat exchanger 26 capable of cooling the chilled water by exchanging heat between the chilled water and the refrigerant. The chilled water cooling heat exchanger 26 is sometimes called a chiller.

[0017] The refrigerant that has passed through the air-cooling heat exchanger 25 and the refrigerant that has passed through the cold water-cooling heat exchanger 26 join together and are then sucked into the compressor 21.

[0018] The refrigerant circuit 20 is provided with a refrigerant liquid tank 27 that stores a portion of the refrigerant and separates the gaseous refrigerant from the refrigerant in a mixed state of gas and liquid. In this embodiment, the refrigerant flows out of the refrigerant condenser 22 once, passes through the refrigerant liquid tank 27, and only the liquid refrigerant flows back into the refrigerant condenser 22. By providing the refrigerant condenser 22 and the refrigerant liquid tank 27 in this manner, the liquid refrigerant can be cooled in the refrigerant condenser 22 to increase the degree of supercooling, and the cooling capacity of the air cooling heat exchanger 25 (evaporator) and the cold water cooling heat exchanger 26 (chiller) can be increased. Although not shown, the refrigerant liquid tank 27 may be disposed between the refrigerant condenser 22 and the air refrigerant expansion device 23.

[0019] (hot water circuit) The hot water circuit 30 includes a hot water pump 31 for delivering hot water, the above-mentioned refrigerant condenser 22 for exchanging heat between the hot water and the refrigerant, a hot water heater 32 for further heating the hot water heated by the refrigerant condenser 22, an air heating heat exchanger 33 for heating the air flowing through which the hot water heated by the hot water heater 32 flows, and a hot water liquid tank 34 for storing a part of the hot water that has passed through the air heating heat exchanger 33 and separating air bubbles from the hot water. The air heated by the air heating heat exchanger 33 is supplied to the vehicle interior CR as hot air for heating. The air heating heat exchanger 33 is sometimes called a hot water heater core. The hot water that has passed through the hot water liquid tank 34 flows back into the hot water pump 31. Although not shown, the hot water circuit 30 may be provided with a radiator capable of cooling the hot water by the outside air of the vehicle 11 as necessary.

[0020] (chilled water circuit) The cold water circuit 40 includes a cold water pump 41 that pumps out cold water, the above-mentioned cold water cooling heat exchanger 26 that cools the cold water with a refrigerant, and a battery cooling device 42 that can cool a battery 49 by the cold water cooled by the cold water cooling heat exchanger 26 flowing therethrough. The battery cooling device 42 includes at least a heat exchanger thermally coupled to the battery 49.

[0021] (vehicle) Referring to Fig. 2, the vehicle 11 (vehicle body 11a) includes a dash panel 12 (partition wall) that separates the vehicle interior CR from a vehicle front room BR in front of the vehicle interior CR, a right front side member 13 that is a structural member of the vehicle 11 and is provided at the lower part of the right side of the vehicle front room BR, and a left front side member 14 that is a structural member of the vehicle 11 and is provided at the lower part of the left side of the vehicle front room BR.

[0022] (Rigid parts on the left and right) The vehicle 11 further has a right rigid portion 50 having a predetermined rigidity and provided on the right side of the vehicle front room BR, and a left rigid portion 60 having a predetermined rigidity and provided on the left side of the vehicle front room BR. The left rigid portion 60, the right rigid portion 50, and the left rigid portion 60 are part of the vehicle body 11a, and together with the dash panel 12, form the space of the vehicle front room BR.

[0023] (Right front side panel) The right rigid portion 50 includes a right upper member 51 extending forward from the upper right corner of the dash panel 12, and a right front side panel 52 provided across from the right upper member 51 to the right front side member 13. The right upper member 51 and the right front side panel 52 may be joined to each other, or may be a single member formed integrally.

[0024] (Right suspension tower) The right front side panel 52 has a right suspension tower 53 provided so as to surround a part of the right front suspension (not shown). The right suspension tower 53 has a right tower part 54 extending upward from the right front side member 13, and a right top part 55 provided at the upper end of the right tower part 54 and capable of supporting the upper part of the right front suspension. The right top part 55 has a hole 55a having the same center as the axis of the right front suspension.

[0025] (Left front side panel) The left rigid portion 60 includes a left upper member 61 extending forward from the upper left corner of the dash panel 12, and a left front side panel 62 provided across from the left upper member 61 to the left front side member 14. The left upper member 61 and the left front side panel 62 may be joined to each other, or may be a single member formed integrally.

[0026] (Left suspension tower) The left front side panel 62 has a left suspension tower 63 provided so as to surround a part of the left front suspension (not shown). The left suspension tower 63 has a left tower portion 64 extending upward from the left front side member 14, and a left top portion 65 provided at the upper end of the left tower portion 64 and capable of supporting an upper portion of the left front suspension. The left top portion 65 has a hole 65a having the same center as the axis of the left front suspension.

[0027] (Air conditioning units, heat source units) Please refer to Figures 1 and 2. Some of the devices constituting the vehicle thermal management system 10 can be mounted in a unitized state on the vehicle 11. Specifically, the vehicle thermal management system 10 includes an air conditioning unit 16 that can be disposed immediately behind the dash panel 12 in the vehicle compartment CR and can condition the air in the vehicle compartment CR, and a vehicle heat source unit 17 that can be disposed in the vehicle front room BR.

[0028] (Air conditioning unit) The air conditioning unit 16 includes a case 16a that houses an air-cooling heat exchanger 25 (evaporator), an air-heating heat exchanger 33 (hot water heater core), and an air refrigerant expansion device 23.

[0029] (Heat source units for vehicles, hot water equipment) 2 and 3, the vehicle heat source unit 17 includes a hot water pump 31, a refrigerant condenser 22, a hot water heater 32, a hot water liquid tank 34, a refrigerant liquid tank 27, a cold water cooling expansion device 24, a cold water pump 41, a cold water cooling heat exchanger 26, and a longitudinal structure 18 having a longitudinal shape in which these devices are provided.

[0030] Hereinafter, each device supported by the longitudinal structure 18 will be referred to as a supported device 90. The longitudinal structure 18 includes, for example, a support body 70 that supports the supported device 90, and a cover member 80 that covers the supported device 90.

[0031] (hot water equipment) With reference to Fig. 1, the hot water pump 31, the refrigerant condenser 22, the hot water heater 32, and the hot water liquid tank 34 constitute a hot water device 30a (which refers not only to each device but also to the entire hot water cycle).

[0032] (hot water heater) The hot water heater 32 is a device for further heating the hot water heated by the refrigerant condenser 22, and has at least a tank through which the hot water flows, an electric heater disposed inside the tank capable of heating the hot water, a tank hot water inlet for introducing hot water into the tank, and a tank hot water outlet for discharging hot water from the tank. The hot water heater 32 is sometimes called an electric hot water generating device or a liquid heating device.

[0033] (Support) Please refer to Fig. 3. The support body 70 has a main body portion 70a (support portion) that supports the supported device 90, a first fixing member 56 (first fixing portion) that is provided at an end portion on one side of the main body portion 70a and can be fixed to a right rigid portion 50 of the vehicle 11 with respect to the longitudinal direction (left-right direction) of the longitudinal structure 18, and a second fixing member 66 (second fixing portion) that is provided at an end portion on the opposite side of the main body portion 70a and can be fixed to a left rigid portion 60 of the vehicle 11 with respect to the longitudinal direction of the longitudinal structure 18.

[0034] (Framework) The main body 70a includes two longitudinal skeletal members 71, 71 arranged approximately parallel to each other. Each skeletal member 71 is, for example, a cylindrical metal member, and each has the same length. The interval between the skeletal members 71 is not particularly strictly defined, but it is natural to set the interval slightly wider for the device that has the longest dimension in the front-to-rear direction among the supported devices 90. On the other hand, the interval between the skeletal members 71 may be set so that the supported device 90 protrudes forward or backward from the skeletal member 71.

[0035] (Bridge member) A plurality of bridge members 72 are bridged between the two skeletal members 71. Each bridge member 72 is, for example, a metal strip-shaped plate material. Both ends of each bridge member 72 are fixed to the skeletal member 71. The fixing method is, for example, welding or screw fastening. The skeletal member 71 and the bridge member 72 are ladder-shaped as a whole. The skeletal member 71 and the bridge member 72 may be made of any material as long as they have a predetermined strength. As an example, the bridge member 72 is preferably made of the same material as the skeletal member 71. This improves the corrosion resistance of the area where the skeletal member 71 and the bridge member 72 contact each other. Alternatively, the bridge member 72 is preferably made of a material with high insulation properties such as resin. It is possible to suppress a local battery reaction at the area where the skeletal member 71 and the bridge member 72 contact each other, thereby improving the corrosion resistance.

[0036] (Support of supported device by bridge member) Each bridging member 72 is formed with a screw through hole 74 through which a male screw 73 can pass. An upper surface 31b of a case 31a of the hot water pump 31 is formed with a female screw 79 that can be fastened to the male screw 73. The hot water pump 31 can be fixed to the bridging member 72 by overlapping the upper surface 31b of the case 31a of the hot water pump 31 with the lower surface of the bridging member 72 and fastening the female screw 73 that passes through the screw through hole 74 to the male screw 79.

[0037] Similarly, female threads 79 are formed on upper surface 34b of case 34a of hot water liquid tank 34, upper surface 32b of case 32a of hot water heater 32, upper surface 27b of case 27a of refrigerant liquid tank 27, upper surface 24b of case 24a of cold water cooling expansion device 24, upper surface 22b of case 22a of refrigerant condenser 22, upper surface 26b of case 26a of cold water cooling heat exchanger 26, and upper surface 41b of case 41a of cold water pump 41. Each device is fixed to bridge member 72 by male threads 73.

[0038] It should be noted that a plurality of supported devices 90 may be fixed to a single bridging member 72. The shape of the case of the supported device 90 is not limited to a block shape or a cylindrical shape.

[0039] (First fixing member) The first fixing member 56 includes a rigid first plate material 57. The first plate material 57 includes a plate-like first overlapping portion 57a ​​that can be overlapped with the right top portion 55 of the right suspension tower 53, a first base portion 57c that extends from an edge of the first overlapping portion 57a ​​toward the framework member 71, and two first arms 57b, 57b that extend from both ends of the first base portion 57c in the front-rear direction toward the framework member 71.

[0040] A first semi-cylindrical member 58 is joined to each of the first arm portions 57b. The first arm portions 57b and the first semi-cylindrical members 58 define a first insertion hole 59 into which one end of each of the framework members 71 can be inserted.

[0041] (Second fixing member) The second fixing member 66 includes a rigid second plate member 67. The second plate member 67 includes a plate-like second overlapping portion 67a that can be overlapped with the left top portion 65 of the left suspension tower 63, a second base portion 67c that extends from an edge of the second overlapping portion 67a toward the framework member 71, and two second arms 67b that extend from both ends of the second base portion 67c in the front-rear direction toward the framework member 71.

[0042] A second half-cylinder member 68 is joined to each of the second arm portions 67b. The second arm portions 67b and the second half-cylinder members 68 define second insertion holes 69 into which one end of each of the framework members 71 can be inserted.

[0043] (Base bending) 3 and 6, the first base portion 57c is bent relative to the first overlapping portion 57a. The second base portion 67c is bent relative to the second overlapping portion 67a. It is to be noted that the first base portion 57c and the second base portion 67c do not have to be bent.

[0044] (Dash panel fixing part) Furthermore, support body 70 has dash panel fixing member 76 (dash panel fixing portion) that can be fixed to intermediate fixing portion 15 provided at the upper end of the front surface of dash panel 12 of vehicle 11, between first fixing member 56 and second fixing member 66 and at the rear. The fixing method is, for example, screw fastening using a male screw and a female screw.

[0045] (Cover material) Please refer to Fig. 4. The cover member 80 is, for example, a box-shaped part whose entire top surface is open. In detail, the cover member 80 has a bottom portion 81 on which the refrigerant condenser 22 and the hot water heater 32 are provided, and a peripheral wall portion 82 provided above the bottom portion 81 and capable of surrounding the supported device 90 from the side. In Fig. 4, as an example, the bottom portion 81 is shown as a plate-shaped member capable of covering the lower side of the supported device 90, and the peripheral wall portion 82 is shown as a member extending upward from the entire edge of the bottom portion 81 and capable of surrounding the supported device 90 from the side.

[0046] The peripheral wall portion 82 has a front wall portion 83 provided in front of the refrigerant condenser 22 and the hot water heater 32, a rear wall portion 84 (rear cover portion) provided behind the refrigerant condenser 22 and the hot water heater 32, a left wall portion 86 provided to the left of the supported device 90, and a right wall portion 85 provided to the right of the supported device 90. In Fig. 4, as an example, the peripheral wall portion 82 is shown as having the front wall portion 83 extending upward from the front edge of the bottom portion 81 and capable of covering the front of the supported device 90, the rear wall portion 84 (rear cover portion) extending upward from the rear edge of the bottom portion 81 and capable of covering the rear of the supported device 90, the left wall portion 86 extending upward from the left edge of the bottom portion 81 and capable of covering the left side of the supported device 90, and the right wall portion 85 extending upward from the right edge of the bottom portion 81 and capable of covering the right side of the supported device 90.

[0047] The cover member 80 is a single member made of resin, but a plurality of plates may be prepared and joined together to form a box shape. The cover member may be, for example, made up of a bottom portion 81, a front wall portion 83, and a rear wall portion 84, with the left and right sides exposed. Furthermore, the cover member may be made up of a plurality of members, such as a first member made up of the bottom portion 81 and a portion of the peripheral wall portion 82, and a second member made up of the remaining portions excluding the portion of the peripheral wall portion 82.

[0048] (Hanging the cover using an S-hook) A plurality of hook holes 88 are formed in the upper ends of the front wall portion 83 and the rear wall portion 84 of the cover member 80, aligned along the longitudinal direction. The lower ends of the S-shaped hooks 75 are hooked into the respective hook holes 88, and the upper ends of the S-shaped hooks 75 are hooked onto the framework member 71. With the above configuration, the cover member 80 can be hung from the framework member 71, and the vehicle heat source unit 17 shown in FIG. 1 is completed.

[0049] (Method of fixing a vehicle heat source unit to a vehicle body) 2 and 3, a plurality of screw through holes 56b through which male screws 78 can pass are formed in the first overlapping portion 57a ​​of the first fixing member 56. The first fixing member 56 can be fixed by overlapping the first overlapping portion 57a ​​with the right top portion 55 of the right suspension tower 53 of the vehicle 11 and fastening the male screws 78 with the female screws 56b.

[0050] Similarly, a plurality of screw through holes 66b are formed in the second overlapping portion 67a of the second fixing member 66, through which the male screws 78 can pass. The second fixing member 66 can be fixed by overlapping the second overlapping portion 67a with the right top portion 65 of the left suspension tower 63 of the vehicle 11 and fastening the male screws 78 with the female screws 65b.

[0051] (Location of vehicle heat source unit) With the above configuration, the vehicle heat source unit 17 fixed to the vehicle body 11a is disposed so that the longitudinal direction of the longitudinal structure 18 (hereinafter simply referred to as the "longitudinal direction") is the vehicle width direction.

[0052] (Arrangement of supported equipment) 5A, the arrangement of the supported device 90 in a plan view looking down on the vehicle heat source unit 17 from above will be described. The refrigerant condenser 22, the hot water heater 32, and the hot water liquid tank 34 are arranged in the longitudinal direction of the longitudinal structure 18.

[0053] In addition, the hot water pump 31 is arranged in line along the longitudinal direction together with the refrigerant condenser 22, the hot water heater 32, and the hot water liquid tank 34. The hot water liquid tank 34 is arranged between the hot water heater 32 and the hot water pump 31.

[0054] The refrigerant condenser 22 may be disposed between the hot water pump 31 and the hot water heater 32. Although the supported device 90 is illustrated as being separated from (not in contact with) the peripheral wall portion 82 of the cover member 80, it may be in contact with the cover member 80.

[0055] (Compressor location) Refer to Fig. 5B. The area where the refrigerant condenser 22 is projected with respect to a direction perpendicular to the longitudinal direction (left-right direction in this embodiment) of the longitudinal structure 18 is defined as a projection area R. In other words, the projection area R is an area (space) between a first plane P1 including one end of the refrigerant condenser 22 and a second plane P2 including the opposite end of the refrigerant condenser 22 with respect to the longitudinal direction. The compressor 21 overlaps the projection area R (is located inside the projection area R) and is disposed in front of the vehicle heat source unit 17.

[0056] At least a part of the compressor 21 may overlap the projection region R. The direction perpendicular to the longitudinal direction (left-right direction in the embodiment) of the longitudinal structure 18 is not limited to the front-rear direction. The compressor 21 may be disposed above, below, or behind the vehicle heat source unit 17.

[0057] The compressor 21 is preferably disposed in front of the vehicle heat source unit 17. When the vehicle heat source unit 17 is disposed close to the dash panel 12, it is difficult to secure a space for disposing the compressor 21 behind the vehicle heat source unit 17, and it is natural that the compressor 21 is disposed in front.

[0058] Alternatively, the compressor 21 is preferably disposed below the vehicle heat source unit 17. The refrigerant discharged from the compressor 21 may contain lubricating oil, and by disposing the compressor 21 below the vehicle heat source unit 17, it becomes easy to recover the lubricating oil circulating inside the vehicle heat source unit 17 to the compressor 21.

[0059] (Position of compressor suction port and discharge port) The compressor 21 includes a refrigerant suction port 21b that draws in a refrigerant and a refrigerant discharge port 21a that discharges the refrigerant. The refrigerant suction port 21b and the refrigerant discharge port 21a are arranged so as to overlap with the projection area R. The refrigerant suction port 21b and the refrigerant discharge port 21a face rearward and are aligned in the left-right direction, but the orientation and positions of the ports can be changed.

[0060] (Refrigerant condenser orientation) The refrigerant condenser 22 is formed by stacking a plurality of refrigerant condensation plates 28. Although detailed structural description is omitted, at least two types of refrigerant condensation plates 28 are prepared, and by stacking them alternately, a passage through which only the refrigerant passes and a passage through which only hot water passes are formed. The stacking direction of the refrigerant condensation plates 28 is along the width direction (front-rear direction) of the longitudinal structure 18.

[0061] (Direction of heat exchanger for cooling water) The cold water cooling heat exchanger 26 is formed by stacking a plurality of cold water cooling plates 29. Although detailed structural description is omitted, at least two types of cold water cooling plates 29 are prepared, and by stacking them alternately, a passage through which only the refrigerant passes and a passage through which only cold water passes are formed. The stacking direction of the cold water cooling plates 29 is along the width direction (front-rear direction) of the longitudinal structure 18.

[0062] (Height direction arrangement of supported equipment) Refer to Fig. 6A. A plane including the uppermost part 18a located at the top of the longitudinal structure 18 and having a normal direction in the vertical direction is defined as an upper reference plane P3. The supported device 90 is located below the upper reference plane P3. In other words, the supported device 90 does not protrude upward from the longitudinal structure 18. Note that the supported device 90 is illustrated as being separated from (not in contact with) the bottom part 81 of the cover member 80, but may be in contact with the cover member 80.

[0063] (Arrangement of the bottom of the cover member) The bottom portion 81 of the cover member 80 is located lower than the first fixing member 56 and the second fixing member 66 .

[0064] (Plumbing) Please refer to Fig. 1. Vehicle heat source unit 17 includes internal connection pipes that connect supported devices 90 to each other, and external connection pipes 91-98 that can connect supported devices 90 to external devices (devices other than supported devices 90). Note that supported devices 90 are separated from each other (cases of supported devices 90 are not in contact with each other).

[0065] (Hot water pipe location) The external connection pipes 91-98 include a first hot water pipe 91 through which hot water flows toward the air-heating heat exchanger 33 of the vehicle interior CR, and a second hot water pipe 92 through which hot water that has passed through the air-heating heat exchanger 33 of the vehicle interior CR flows. The first hot water pipe 91 is connected to, for example, the hot water heater 32. The second hot water pipe 92 is connected to, for example, the hot water liquid tank 34.

[0066] 6A and 6B. The first hot water pipe 91 and the second hot water pipe 92 pass through a piping hole 89 formed in the rear wall portion 84 and are bent in a crank shape. The outlet 91a of the first hot water pipe 91 and the inlet 92a of the second hot water pipe 92 both face rearward and are located below the bottom portion 81 and behind the rear wall portion 84.

[0067] (Position of refrigerant pipe) Referring to Fig. 1, the external connection pipes 91-98 include a first refrigerant pipe 93 through which the refrigerant that has passed through the refrigerant liquid tank 27 flows toward the air-cooling heat exchanger 25, and a second refrigerant pipe 94 through which the refrigerant that has passed through the air-cooling heat exchanger 25 flows.

[0068] 6A and 6B, the first refrigerant pipe 93 and the second refrigerant pipe 94 pass through a piping hole 89 formed in the rear wall portion 84 and are bent in a crank shape. An outlet 93a of the first refrigerant pipe 93 and an inlet 94a of the second refrigerant pipe 94 face rearward and are located lower than the bottom portion 81 and rearward than the rear wall portion 84.

[0069] (Position of cold water pipe) Referring to Fig. 1, the external connection pipes 91-98 include a first cold water pipe 95 through which cold water that has passed through the cold water cooling heat exchanger 26 flows toward the battery 49, and a second cold water pipe 96 through which cold water that has passed through the battery cooling device 42 flows.

[0070] The first cold water pipe 95 and the second cold water pipe 96 pass through a piping hole 89 formed in the bottom 81. See Figures 6A and 6B. An outlet 95a of the first cold water pipe 95 and an inlet 96a of the second cold water pipe 96 face downward and are located below the bottom 81.

[0071] (Connection pipe position) 5B, the external connecting pipes 91-98 include a suction side connecting pipe 97 having an outlet 97a connectable to the refrigerant suction port 21b, and a discharge side connecting pipe 98 having an inlet 98a connectable to the refrigerant discharge port 21a. The outlet 97a of the suction side connecting pipe 97 and the inlet 98a of the discharge side connecting pipe 98 both face forward.

[0072] (First effect) 1 and 2, a first vehicle thermal management system 10 has a vehicle heat source unit 17 that can be arranged inside a vehicle front room BR of a vehicle 11, which is forward of a vehicle compartment CR in which passengers board.

[0073] The vehicle heat source unit 17 includes a longitudinal structure 18 and a supported device 90 supported by the longitudinal structure. The supported device 90 includes a hot water device 30a through which hot water flows for heating the air to be blown into the vehicle compartment CR.

[0074] The hot water device 30a includes a hot water pump 31 that pumps out hot water, a refrigerant condenser 22 that performs heat exchange between the hot water and a refrigerant capable of cooling the air blown into the vehicle compartment CR, and a hot water heater 32 that can further heat the hot water heated by the refrigerant condenser 22.

[0075] That is, the vehicle heat source unit 17 employs a longitudinal structure 18 having a longitudinal shape as a structure for supporting the hot water pump 31, the refrigerant condenser 22, and the hot water heater 32. These devices 31, 22, and 32 are unitized as the vehicle heat source unit 17, which makes it easy to mount the vehicle heat source unit 17 on the vehicle 11.

[0076] Please refer to Fig. 1. The dash panel 12 is generally plate-shaped, and the longitudinal shaped vehicle heat source unit 17 can be arranged along the dash panel 12. As a result, the vehicle heat source unit 17 is arranged immediately adjacent to the air conditioning unit 16 across the dash panel 12. This makes it possible to suppress the loss of heat of the hot water generated by the vehicle heat source unit 17, and also to reduce the amount of hot water flowing through the hot water circuit 30 and the amount of refrigerant flowing through the refrigerant circuit 20.

[0077] Please refer to Figures 6A and 6B. The part located at the lowest position among the longitudinal structure 18 and the supported device 90 is the bottom 81 (lowest part) of the cover 80. The outlet 91a of the first hot water pipe 91 through which hot water flows from the hot water device 30a (see Figure 1) toward the vehicle interior CR, and the inlet 92a of the second hot water pipe 92 through which hot water flows from the vehicle interior CR toward the hot water device 30a (see Figure 1) face backward (towards the air conditioning unit 16) and are located below the bottom 81 (lower reference plane P4, which is a plane including the bottom 81). Note that the lower reference plane P4 is not necessarily horizontal. The bottom 81 may be inclined with respect to the horizontal plane.

[0078] The air conditioning unit 16 is equipped with a pipe 99 that penetrates the dash panel. A tip 99a of the pipe 99 is located in the vehicle front room BR. When the vehicle heat source unit 17 is disposed in the vehicle front room BR, the outlet 91a of the first hot water pipe 91 faces the tip 99a of the pipe 99 to which it is connected, making it easy to connect the outlet 91a and the tip 99a.

[0079] Furthermore, the outlet 91a of the first hot water pipe 91 is located below the bottom portion 81. When connecting the outlet 91a and the tip 99a, a space for work using power tools or the like can be secured.

[0080] Similarly, it is easy to connect the inlet 92a of the second hot water pipe 92 to the piping (not shown) of the air conditioning unit 16. Therefore, it is possible to provide a vehicle heat source unit 17 that allows easy connection of the piping to the air conditioning unit 16.

[0081] (Second Effect) See Figures 6A and 6B. Secondly, the first vehicle thermal management system 10 has a rear cover part 84 provided behind the supported device 90. The outlet 91a of the first hot water pipe 91 and the inlet 92a of the second hot water pipe 92 are located behind the rear cover part 84 (rear reference plane P5 including the rear cover part 84). By locating the outlet 91a of the first hot water pipe 91 behind the rear cover part 84, it is possible to bring it closer to the tip 99a of the piping 99, making it easier to connect the outlet 91a and the tip 99a. The inlet 92a of the second hot water pipe 92 has the same configuration and effect.

[0082] (Third Effect) See Fig. 3. Thirdly, in the first vehicle thermal management system 10, the supported device 90 includes, in addition to the water heating device 30a, a refrigerant liquid tank 27 that stores a portion of the refrigerant and separates the gaseous refrigerant from the refrigerant in a mixed state of gas and liquid. That is, the refrigerant liquid tank 27 is also supported by the longitudinal structure 18 (support 70).

[0083] 6A and 6B. An outlet 93a of the first refrigerant pipe 93, through which the refrigerant that has passed through the refrigerant liquid tank 27 flows toward the vehicle compartment CR, and an inlet 94a of the second refrigerant pipe 94, through which the refrigerant that has passed through the vehicle compartment CR flows, face rearward and are located below the bottom 81 (lowest part). Similar to the outlet 91a of the first hot water pipe 91 and the inlet 92a of the second hot water pipe 92, the outlet 93a of the first refrigerant pipe 93 and the inlet 94a of the second refrigerant pipe 94 can be easily connected to the refrigerant piping provided in the air conditioning unit 16.

[0084] (Fourth Effect) Fourthly, in the third vehicle thermal management system 10, the longitudinal structure 18 has a rear cover portion 84 provided behind the supported device 90. The outlet 93a of the first refrigerant pipe 93 and the inlet 94a of the second refrigerant pipe 94 are located behind the rear cover portion 84. As with the outlet 91a of the first hot water pipe 91 and the inlet 92a of the second hot water pipe 92, connection to the refrigerant piping provided in the air conditioning unit 16 is facilitated.

[0085] (Fifth Effect) Refer to Fig. 1. Fifth, in the first vehicle thermal management system 10, the vehicle heat source unit 17 can cool the battery 49 that stores the power for driving the vehicle 11, using cold water cooled by the refrigerant. Refer to Fig. 3. In addition to the hot water device 30a, the supported device 90 includes a cold water pump 41 that sends out cold water, a cold water cooling expansion device 24 that can expand the refrigerant, and a cold water cooling heat exchanger 26 that exchanges heat between the refrigerant expanded by the cold water cooling expansion device 24 and the cold water. That is, the cold water pump 41, the cold water cooling expansion device 24, and the cold water cooling heat exchanger 26 are also supported by the longitudinal structure 18 (support 70).

[0086] 6A and 6B, an outlet 95a of a first cold water pipe 95 through which cold water flows from the cold water cooling heat exchanger 26 toward the battery 49, and an inlet 96a of a second cold water pipe 96 through which cold water that has passed through the battery 49 flows face downward and are located below the bottom 81 (lowest part).

[0087] The battery 49 (see FIG. 1) that stores power for running the vehicle 11 is generally disposed relatively low inside the vehicle body 11. The battery 49 is disposed, for example, below the floor surface of the passenger compartment CR. The outlet 95a of the first cold water pipe 95 and the inlet 96a of the second cold water pipe 96 face downward and are located below the bottom 81, which makes it easy to connect the piping of the outlet 95a of the first cold water pipe 95 and the inlet 96a of the second cold water pipe 96.

[0088] (Sixth Effect) See Figures 5A and 5B. Sixth, in the first vehicle thermal management system 10, the vehicle heat source unit 17 includes a suction side connecting pipe 97 having an outlet 97a connectable to the refrigerant suction port 21b of the compressor 21, and a discharge side connecting pipe 98 having an inlet 98a connectable to the refrigerant discharge port 21a of the compressor 21. The outlet 97a of the suction side connecting pipe 97 and the inlet 98a of the discharge side connecting pipe 98 face forward. When the compressor 21 is disposed in front of the vehicle heat source unit 17, the connection between the refrigerant suction port 21b and the outlet 97a and the connection between the refrigerant discharge port 21a and the inlet 98a are facilitated.

[0089] (Seventh Effect) See Fig. 4. Seventh, in the third or fourth vehicle thermal management system 10, the vehicle rear cover part 84 and the bottom part 81 are a single member (cover member 80) continuously formed from the same material. This reduces the number of parts constituting the vehicle heat source unit 17, and also makes it easier to produce the vehicle heat source unit 17.

[0090] <Example 2> 7 and 8 are referenced. A description will be given of a vehicle heat source unit 17A of a vehicle thermal management system 10A of the embodiment 2. The same reference numerals as in the embodiment 1 are used for the components common to the vehicle thermal management system 10 of the embodiment 1, and the description will be omitted.

[0091] (Longitudinal structure) The vehicle heat source unit 17A includes a longitudinal structure 120 on which the supported device 90 is provided. The longitudinal structure 120 is a longitudinal box shape whose entire upper surface is open, and includes a support part 120a that supports the supported device 90, and a first fixing part 130 and a second fixing part 140 provided on both ends of the support part in the longitudinal direction.

[0092] (Support part) The support portion 120a has a bottom portion 121 extending in the longitudinal direction on which the refrigerant condenser 22 and the hot water heater 32 are placed, and a peripheral wall portion 122 provided above the bottom portion 121 and capable of surrounding the supported device 90 from the side. In Fig. 7, as an example, the support portion 120a is shown as having a rectangular plate-shaped bottom portion 121 provided below the supported device 90, and a peripheral wall portion 122 extending upward from the entire edge of the bottom portion 121 and surrounding the supported device 90.

[0093] Although not shown, similarly to the first embodiment, the outlet 91a of the first hot water pipe 91 and the inlet 92a of the second hot water pipe 92 face rearward (towards the air conditioning unit 16) and are located below the bottom 121 (lowest part). The outlet 93a of the first refrigerant pipe 93 and the inlet 94a of the second refrigerant pipe 94 face rearward and are located below the bottom 121 (lowest part). Furthermore, the outlet 95a of the first cold water pipe 95 and the inlet 96a of the second cold water pipe 96 face downward and are located below the bottom 121 (lowest part).

[0094] The peripheral wall portion 122 has a front wall portion 123 provided above the bottom portion 121 and in front of the supported device 90, a rear wall portion 124 provided above the bottom portion 121 and behind the supported device 90, a left wall portion 126 provided above the bottom portion 121 and to the left of the supported device 90, and a right wall portion 125 provided above the bottom portion 121 and to the right of the supported device 90. In Figure 7, as an example, the peripheral wall portion 122 is shown to have a front wall portion 123 extending upward from the front edge of the bottom portion 121 and capable of covering the front of the supported device 90, a rear wall portion 124 extending upward from the rear edge of the bottom portion 121 and capable of covering the rear of the supported device 90, a left wall portion 126 extending upward from the left edge of the bottom portion 121 and capable of covering the left side of the supported device 90, and a right wall portion 125 extending upward from the right edge of the bottom portion 121 and capable of covering the right side of the supported device 90.

[0095] Although not shown, the outlet 91a of the first hot water pipe 91 and the inlet 92a of the second hot water pipe 92 are located rearward of the rear wall portion 124 (rear cover portion). Also, the outlet 93a of the first refrigerant pipe 93 and the inlet 94a of the second refrigerant pipe 94 are located rearward of the rear wall portion 124 (rear cover portion).

[0096] Although not shown, the outlet 97a of the suction side connecting pipe 97 and the inlet 98a of the discharge side connecting pipe 98 face forward.

[0097] (1st fixed part) The first fixing portion 130 is a plate-like portion having a first overlapping portion 131 that can be overlapped with the right top portion 55 (see FIG. 2), and a first base portion 132 that connects the edge of the first overlapping portion 131 and the upper edge of the right wall portion 125. The first base portion 132 is bent with respect to the first overlapping portion 131.

[0098] (Second fixed part) The second fixing portion 140 is a plate-like portion having a second overlapping portion 141 that can be overlapped with the left apex portion 65 (see FIG. 2) and a second base portion 142 that connects the edge of the second overlapping portion 141 and the upper edge of the left wall portion 126. The second base portion 142 is bent with respect to the second overlapping portion 141.

[0099] All the above-mentioned parts 121-126, 130-132, 140-142 are continuously formed of the same material (for example, resin). The longitudinal structure 120 is a single member. This allows the longitudinal structure 120 to be manufactured by injection molding, facilitating production. Alternatively, if it is possible to manufacture the longitudinal structure 120 by injection molding, it may be formed in layers of multiple members. By injection molding the longitudinal structure 120 in layers together with a material that can improve strength, it is possible to reinforce the entire longitudinal structure 120. Alternatively, it may be formed by connecting multiple different members using a well-known two-color molding technique. By two-color molding the first base portion 132 and the second base portion 142 using a material that is more flexible than the support portion 120a, the influence on the rigidity of the vehicle 11 can be more reliably suppressed.

[0100] (Method of supporting supported device) Please refer to Figures 7 and 8. The supported device 90 is supported on the longitudinal structure by screw fastening, as in the first embodiment. A screw through hole is formed in the bottom 121, through which the male screw 101 can pass. A female screw is formed in the lower surface 31c of the hot water pump 31, through which the male screw 101 can be fastened. The hot water pump 31 can be fixed to the bottom 121 by placing the lower surface 31c of the hot water pump 31 on the upper surface 121a of the bottom 121 and fastening the male screw 101 that has passed through the screw through hole.

[0101] Similarly, the underside 34c of the hot water liquid tank 34, the underside 32c of the hot water heater 32, the underside 27c of the refrigerant liquid tank 27, the underside 22c of the refrigerant condenser 22, the underside 26c of the cold water cooling heat exchanger 26, and the underside 41c of the cold water pump 41 are each formed with a female thread (not shown) and fixed by a male thread 101.

[0102] (Arrangement of supported equipment) The supported device 90 is entirely housed in the elongated structure 120. In other words, the supported device 90 does not protrude upward from the edge of the opening of the box. Note that the supported device 90 may protrude from the opening of the box.

[0103] The elongated structure 120 is preferably provided with a drain hole (not shown) at any position of the plate-like bottom 121. When water or other liquid components are unintentionally accumulated inside the elongated structure 120, they can be effectively drained.

[0104] <Example 3> 9, a description will be given of a vehicle heat source unit 17B of a vehicle thermal management system 10B according to the third embodiment. The same components as those in the first embodiment are given the same reference numerals and description thereof will be omitted.

[0105] The longitudinal structure 210 of the heat source unit 17B has a bottom extension 212 extending forward from a part of the front edge 211a of the bottom 211 of the main body 210. The bottom extension 212 supports the compressor 21 by a male screw 101 that is fastened to a female screw formed on the lower surface of the compressor 21. The bottom extension 212 has an extension side wall 213 that extends upward from the edge of the bottom extension 212. The extension side wall 213 surrounds the compressor 21 except for the rear and is connected to the front wall 123. The part that supports the compressor 21 is not limited to the bottom extension 212. Although not shown, the positions of the outlet and inlet of each of the tubes 91 to 98 are the same as those in the second embodiment.

[0106] <Example 4> 10A and 10B are referenced. A vehicle heat source unit 17C of a vehicle thermal management system 10C of the fourth embodiment will be described. The same components as those of the vehicle thermal management system 10 of the first embodiment are given the same reference numerals as those of the first embodiment, and the description thereof will be omitted.

[0107] The longitudinal structure 300 of the heat source unit for a vehicle 17C is composed only of the support body 70 (see FIG. 3) shown in the first embodiment.

[0108] The lowest positioned parts of the longitudinal structure 300 and the supported device 90 are the lower surface 32c (lowest part) of the hot water heater 32 and the lower surface 34c (lowest part) of the hot water liquid tank 34. The outlet 91a of the first hot water pipe 91 and the inlet 92a of the second hot water pipe 92 are positioned below the lower surfaces 32c and 34c (lower reference plane P6, which is a plane including the lower surfaces 32c and 34c).

[0109] (Effect 8) Eighth, in the first vehicle thermal management system 10C (the configuration corresponding to the first effect), the rearmost portion of the longitudinal structure 300 and the supported device 90 is the rear part 70b (rearmost part) of the support body 70. The outlet 91a of the first hot water pipe 91 and the inlet 92a of the second hot water pipe 92 are located rearward of the rear part 70b (rear reference plane P7, which is a plane including the rear part 70b and extending in the vertical direction).

[0110] (9th effect) Ninth, in the third vehicle thermal management system 10C (the configuration corresponding to the third effect), the outlet 93a of the first refrigerant pipe 93 and the inlet 94a of the second refrigerant pipe 94 are located below the lower surface 32c and the lower surface 34c (the lowest part). Furthermore, the outlet 93a of the first refrigerant pipe 93 and the inlet 94a of the second refrigerant pipe 94 are located rearward of the rear portion 70b.

[0111] An outlet 95a of the first cold water pipe 95 and an inlet 96a of the second cold water pipe 96 face downward and are located below the lower surface 32c and the lower surface 34c (rearmost portion).

[0112] An outlet 97a of the suction side connecting pipe 97 and an inlet 98a of the discharge side connecting pipe 98 face forward.

[0113] As long as the functions and effects of the present invention are achieved, the present invention is not limited to the examples.

[0114] For example, the refrigerant circuit 20 has been described as one in which the refrigerant that has passed through the refrigerant condenser 22 branches into two, but it may also be one in which the refrigerant does not branch and flows into the air-cooling heat exchanger 25. In this case, the vehicle heat source unit 17 does not include the cold water cooling expansion device 24, the cold water cooling heat exchanger 26, or the cold water pump 41. This vehicle heat source unit 17 does not include a function of cooling the battery 49, but still has a function of supplying refrigerant to the air-cooling heat exchanger 25 and a function of supplying hot water to the air-heating heat exchanger 33.

[0115] In addition, the first hot water pipe 91 and the second hot water pipe 92 have been described as passing through the piping hole 89 formed in the rear wall portion 84 and being bent in a crank shape, but a piping hole may be formed in the bottom portion 81 and passed through the pipes, and the outlet 91a of the first hot water pipe 91 and the inlet 92a of the second hot water pipe 92 may be bent in an L shape so that they face rearward. The tip 99a of the pipe 99 of the air conditioning unit 16 is disposed facing the vehicle front room BR (see FIG. 6B), which makes it easy to connect the outlet 91a of the first hot water pipe 91 to the tip 99a of the pipe 99. The inlet 92a of the second hot water pipe 92 to the pipe of the air conditioning unit 16 (not shown) can also be easily connected.

[0116] Furthermore, the first refrigerant pipe 93 and the second refrigerant pipe 94 may also be configured to have piping holes formed in the bottom 81, and bent in an L shape so that the outlet 93a of the first refrigerant pipe 93 and the inlet 94a of the second refrigerant pipe 94 face rearward. The refrigerant pipes of the air conditioning unit 16 are arranged toward the vehicle front room BR, making connection easy.

[0117] In addition, the bottom 81, 121 of the longitudinal structure 18, 120, 210 has been described as being capable of covering the lower part of the supported device 90, but it is sufficient to include at least the part provided below the refrigerant condenser 22 and the hot water heater 32. In the present disclosure, not only the part that covers the supported device 90, but also the part provided below is hollowed out or a hole is formed, so that the supported device 90 is partially covered and a part of the supported device 90 is exposed. If the area of ​​the bottom 81, 121 is large, the rigidity of the vehicle heat source unit 17, 17A, 17B is increased. If the area of ​​the bottom 81, 121 is small, the drainage of water unintentionally stored in the vehicle heat source unit 17, 17A, 17B is improved. In addition, it can contribute to weight reduction. Similarly, the front wall portions 83, 123, rear wall portions 84, 124, left wall portions 86, 126, and right wall portions 85, 125 arranged on the sides of the supported device 90 may not only cover the supported device 90, but may also partially cover it. [Explanation of symbols]

[0118] 11…vehicle, 11a…car body 17, 17A, 17B, 17C...Heat source unit for vehicle 18,120,210,300...Longitudinal structure 21...Compressor 21a…Refrigerant discharge port 21b...Refrigerant suction port 22...Refrigerant condenser 24...Expansion device for cooling water 26...Heat exchanger for chilled water cooling 27... Refrigerant liquid tank 30a…Hot water device 31…Hot water pump 32…Hot water heater 32c…Bottom of hot water heater (bottom part) 34…Hot water liquid tank 34c…Bottom of hot water liquid tank (bottom) 41…Cold water pump 49…Battery 70...Support body (longitudinal structure) 70b...Rear part (rearmost part) of the support 81,121,211…Bottom (lowest part) 84,124…Rear wall (rear cover) 90...Supported device 91...1st hot water pipe, 91a...outlet 92...Second hot water pipe, 92a...Inlet 93...first refrigerant pipe, 93a...outlet 94...second refrigerant pipe, 94a...inlet 95...1st cold water pipe, 95a...outlet 96...Second cold water pipe, 96a...Inlet 97...suction side connecting pipe, 97a...outlet 98...Discharge side connecting pipe, 98a...Inlet CR…Car interior BR: Vehicle front room

Claims

1. A vehicle heat source unit (17, 17A, 17B, 17C) that can be arranged inside a vehicle front room (BR) of a vehicle (11) that is forward of a vehicle compartment (CR) in which passengers board, A longitudinal structure (18, 120, 210, 300) having a longitudinal shape; a supported device (90) supported by the longitudinal structure (18, 120, 210, 300); The supported device (90) has a hot water device (30a) through which hot water capable of heating air to be blown into the vehicle compartment (CR) flows, The hot water device (30a) includes a hot water pump (31) that delivers the hot water, a refrigerant condenser (22) that performs heat exchange between the hot water and a refrigerant capable of cooling the air that is blown into the vehicle compartment (CR), and a hot water heater (32) that can further heat the hot water heated by the refrigerant condenser (22), If the lowest portion of the longitudinal structure (18, 120, 210, 300) and the supported device (90) is the lowest portion (81, 121, 211, 32c, 34c), A heat source unit (17, 17A, 17B, 17C) for a vehicle, characterized in that an outlet (91a) of a first hot water pipe (91) through which the hot water flows from the hot water device (30a) toward the passenger compartment (CR) and an inlet (92a) of a second hot water pipe (92) through which the hot water flows from the passenger compartment (CR) toward the hot water device (30a) face rearward and are located lower than the lowermost part (81, 121, 211, 32c, 34c).

2. The longitudinal structure (18, 120, 210, 300) has a rear cover portion (84, 124) provided behind the supported device (90), The vehicle heat source unit (17, 17A, 17B, 17C) according to claim 1, wherein the outlet (91a) of the first hot water pipe (91) and the inlet (92a) of the second hot water pipe (92) are located rearward of the rear cover portion (84, 124).

3. The supported device (90) includes, in addition to the hot water device (30a), a refrigerant liquid tank (27) that stores a portion of the refrigerant and separates the gaseous refrigerant from the refrigerant in a mixed state of gas and liquid, A vehicle heat source unit (17, 17A, 17B, 17C) as described in claim 1, wherein an outlet (93a) of a first refrigerant pipe (93) through which the refrigerant that has passed through the refrigerant liquid tank (27) flows toward the passenger compartment (CR), and an inlet (94a) of a second refrigerant pipe (94) through which the refrigerant that has passed through the passenger compartment (CR) flows face rearward and are located lower than the lowermost part (81, 121, 211, 32c, 34c).

4. The longitudinal structure (18, 120, 210, 300) has a rear cover portion (84, 124) provided behind the supported device (90), The vehicle heat source unit (17, 17A, 17B, 17C) according to claim 3, wherein the outlet (93a) of the first refrigerant pipe (93) and the inlet (94a) of the second refrigerant pipe (94) are located rearward of the rear cover portion (84, 124).

5. A battery (49) that stores electric power for driving the vehicle (11) can be cooled by cold water cooled by a refrigerant, The supported device (90) includes, in addition to the hot water device (30a), A cold water pump (41) for pumping the cold water; A cold water cooling expansion device (24) capable of expanding the refrigerant; a cold water cooling heat exchanger (26) for exchanging heat between the refrigerant expanded by the cold water cooling expansion device (24) and the cold water, A vehicle heat source unit (17, 17A, 17B, 17C) as described in claim 1, wherein an outlet (95a) of a first cold water pipe (95) through which the cold water flows from the cold water cooling heat exchanger (26) toward the battery (49) and an inlet (96a) of a second cold water pipe (96) through which the cold water that has passed through the battery (49) flows face downward and are located below the lowermost part (81, 121, 211, 32c, 34c).

6. a suction side connecting pipe (97) having an outlet (97a) connectable to a refrigerant suction port (21b) of a compressor (21) capable of compressing the refrigerant; a discharge side connecting pipe (98) having an inlet (98a) connectable to a refrigerant discharge port (21a) of the compressor (21), 2. The vehicle heat source unit (17, 17A, 17B, 17C) according to claim 1, wherein the outlet (97a) of the suction side connecting pipe (97) and the inlet (98a) of the discharge side connecting pipe (98) face forward.

7. The longitudinal structure (18, 120, 210, 300) has a bottom (81, 121) provided below the supported device (90), The vehicle heat source unit (17, 17A, 17B, 17C) according to claim 2 or 4, wherein the bottom portion (81, 121) and the rear cover portion (84, 124) are a single member continuously formed from the same material.

8. If the rearmost portion of the longitudinal structure (18, 120, 210, 300) and the supported device (90) is defined as a rearmost portion (70b), The vehicle heat source unit (17, 17A, 17B, 17C) according to claim 1, wherein the outlet (91a) of the first hot water pipe (91) and the inlet (92a) of the second hot water pipe (92) are located rearward of the rearmost portion (70b).

9. If the rearmost portion of the longitudinal structure (18, 120, 210, 300) and the supported device (90) is defined as a rearmost portion (70b), The vehicle heat source unit (17, 17A, 17B, 17C) according to claim 3, wherein the outlet (93a) of the first refrigerant pipe (93) and the inlet (94a) of the second refrigerant pipe (94) are located rearward of the rearmost portion (70b).

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