Automobile thermal system cold and heat source device and vehicle suitable for flammable refrigerants

Abstract

The present invention provides a cold and heat source device for a vehicle thermal system suitable for flammable refrigerants and a vehicle, wherein the cold and heat source device for a vehicle thermal system suitable for flammable refrigerants comprises: a chassis and a refrigerant circulation system placed in the chassis, the chassis comprises a first cavity and a second cavity that are separated and independently sealed, the first cavity comprises a first suction port and a first water return port, the second cavity comprises a second suction port and a second water return port, and the refrigerant circulation system is connected to the first suction port and the second suction port, respectively. The cold and heat source device for a vehicle thermal system suitable for flammable refrigerants provided by the present invention forms a first cavity and a second cavity that are separated and independently sealed in the chassis, fills the first cavity and the second cavity with flammable refrigerant, and places the flammable refrigerant and the refrigerant circulation system in the chassis to prevent leakage of the flammable refrigerant due to collision; at the same time, the process of the refrigerant circulation system is simplified, the amount of refrigerant used is effectively reduced, and the safety performance is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration and heating management, and in particular to a cold and heat source device of an automobile thermal system and a vehicle suitable for flammable refrigerants. Background Art

[0002] For vehicle applications, the hydrofluorocarbon refrigerant replacement technology used in refrigeration and air-conditioning systems that provide cold and heat sources for vehicle thermal management is an important technical content for the development of the industry.

[0003] Some environmentally friendly refrigerants, such as R290, R32, R1234yf, R152a and NH 3 Etc., have good development prospects in refrigeration and air-conditioning applications due to their good cooling and heating performance. However, since these refrigerants have certain flammability and there are safety hazards of leakage, they are not easy to meet the safety testing standards in the vehicle field, and therefore cannot be used in vehicle thermal systems. Summary of the invention

[0004] The present invention provides a cold and heat source device for an automobile thermal system and a vehicle suitable for flammable refrigerants, so as to solve the defect in the prior art that flammable refrigerants cannot be applied to the vehicle temperature control system. A chassis is formed into a first cavity and a second cavity which are separated and independently sealed. The first cavity and the second cavity are respectively connected to the refrigerant circulation system, the thermal management heat exchange device and the vehicle-external heat exchanger, so as to realize the application of flammable refrigerants in the vehicle temperature control system to achieve a better temperature control effect.

[0005] The present invention provides a cold and heat source device for an automobile thermal system suitable for flammable refrigerants, comprising: a chassis and a refrigerant circulation system disposed in the chassis,

[0006] The chassis comprises a first cavity and a second cavity which are separated and independently sealed, the first cavity comprising a first suction port and a first water return port, the second cavity comprising a second suction port and a second water return port,

[0007] The refrigerant circulation system is connected to the first suction port and the second suction port respectively.

[0008] The first water return port is used to communicate with one of the thermal management heat exchange device and the external heat exchanger; the second water return port is used to communicate with the other of the thermal management heat exchange device and the external heat exchanger.

[0009] According to the automobile thermal system cold and heat source device suitable for flammable refrigerants provided by the present invention, the refrigerant circulation system includes a compressor, a condenser, a liquid storage tank, an expansion valve and an evaporator which are connected end to end in sequence to form a loop.

[0010] According to the cold and heat source device of the automobile thermal system suitable for flammable refrigerants provided by the present invention, the refrigerant circulation system comprises a quasi-two-stage compression air-supplementing compressor, a condenser, a first expansion valve, a gas-liquid separation liquid storage tank, a second expansion valve and an evaporator which are sequentially connected end to end to form a loop.

[0011] Wherein, the gas-liquid separation liquid storage tank is connected to the quasi-two-stage compression air-supplementing compressor.

[0012] According to the automotive thermal system cold and heat source device suitable for flammable refrigerants provided by the present invention, the condenser includes a first side suction port and a first side outlet, a first pump is installed between the first side suction port and the first suction port, and the first side outlet is connected to one of the thermal management heat exchange device and the vehicle external heat exchanger.

[0013] The evaporator includes a second side suction port and a second side outlet, a second pump is installed between the second side suction port and the second suction port, and the second side outlet is connected to the other of the external heat exchanger and the thermal management heat exchange device.

[0014] According to the automotive thermal system cold and heat source device suitable for flammable refrigerants provided by the present invention, the first side outlet is connected to the first water supply port of the thermal management heat exchange device, and the second side outlet is connected to the second water supply port of the off-vehicle heat exchanger.

[0015] Wherein, the first water return port is connected to the third water return port of the thermal management heat exchange device, and the second water return port is connected to the fourth water return port of the off-vehicle heat exchanger.

[0016] According to the automotive thermal system cold and heat source device suitable for flammable refrigerants provided by the present invention, the first side outlet is connected to the second water supply port of the off-vehicle heat exchanger, and the second side outlet is connected to the first water supply port of the thermal management heat exchange device.

[0017] Wherein, the first water return port is connected to the fourth water return port of the off-vehicle heat exchanger, and the second water return port is connected to the third water return port of the thermal management heat exchange device.

[0018] According to the automobile thermal system cold and heat source device suitable for flammable refrigerants provided by the present invention, the outer wall of the chassis is provided with a lifting lug.

[0019] According to the automobile thermal system cold and heat source device suitable for flammable refrigerants provided by the present invention, the chassis also includes a chassis cover, and the chassis cover is provided with an explosion-proof power supply module and a control and display module.

[0020] According to the automobile thermal system cold and heat source device suitable for flammable refrigerants provided by the present invention, the box cover is sealed and connected to the chassis.

[0021] The present invention also provides a vehicle, comprising a vehicle frame and the above-mentioned automobile thermal system cold and heat source device suitable for flammable refrigerants, wherein the automobile thermal system cold and heat source device is installed in the vehicle frame.

[0022] The present invention provides a heat and cold source device for an automobile thermal system suitable for flammable refrigerants. The device forms a first cavity and a second cavity that are separated and independently sealed in a chassis, fills the first cavity and the second cavity with flammable refrigerant, and places the device in the chassis with a refrigerant circulation system to prevent leakage of the flammable refrigerant due to collision. The device simplifies the process of the refrigerant circulation system, effectively reduces the amount of refrigerant used, improves safety performance, and forms a temperature control loop with a thermal management heat exchange device and an external heat exchanger to achieve better temperature control effects.

[0023] Furthermore, the present invention also provides a vehicle, which also has the advantages of the above-mentioned automotive thermal system cold and heat source device suitable for flammable refrigerants because it includes the automotive thermal system cold and heat source device suitable for flammable refrigerants. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the chassis structure of a cold and heat source device of an automobile thermal system applicable to flammable refrigerants provided by the present invention;

[0026] Figure 2 It is a schematic diagram of a refrigerant circulation system of a cold and heat source device of an automobile thermal system applicable to flammable refrigerants provided by the present invention;

[0027] Figure 3 This is one of the schematic diagrams of the refrigerant circulation system of the cold and heat source device of the automobile thermal system applicable to flammable refrigerants provided by the present invention;

[0028] Figure 4 This is the second schematic diagram of the refrigerant circulation system of the cold and heat source device of the automobile thermal system applicable to flammable refrigerants provided by the present invention;

[0029] Figure 5 This is one of the schematic diagrams of the connection between the thermal management heat exchange device provided by the present invention, the pre-chassis of the off-vehicle heat exchanger, and the refrigerant circulation system;

[0030] Figure 6 This is the second schematic diagram of the connection between the thermal management heat exchange device provided by the present invention, the pre-chassis of the off-vehicle heat exchanger, and the refrigerant circulation system;

[0031] Figure 7 It is a schematic diagram of the box cover structure provided by the present invention;

[0032] Reference numerals:

[0033] 100: chassis; 101: first chamber; 102: second chamber; 103: partition; 104: outer wall; 105: inner wall; 106: reinforcing rib; 107: cover; 108: lifting ear; 109: sealing groove; 110: intermediate chamber; 111: first suction port; 112: second suction port; 113: first water return port; 114: second water return port; 200: refrigerant circulation system;

[0034] 201: compressor; 202: condenser; 203: liquid storage tank; 204: expansion valve; 205: evaporator; 206: first pump; 207: second pump; 211: first side suction port; 212: second side suction port; 213: first side outlet; 214: second side outlet; 220: quasi-two-stage compression air-supplementing compressor; 221: gas-liquid separation liquid storage tank; 222: first expansion valve; 223: second expansion valve;

[0035] 300: thermal management heat exchange device; 301: first water supply port; 302: third water return port; 310: first four-way reversing valve; 320: first three-way reversing valve; 321: second three-way reversing valve;

[0036] 400: external heat exchanger; 401: second water supply port; 402: fourth water return port; 410: second four-way reversing valve; 420: fourth three-way reversing valve; 421: third three-way reversing valve;

[0037] 113a: the first water return port of the first level; 113b: the first water return port of the second level; 114a: the second water return port of the first level; 114b: the second water return port of the second level; 213a: the first side outlet of the first level;

[0038] 213b: secondary first side outlet; 214a: primary second side outlet; 214b: secondary second side outlet.

[0039] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the description of the embodiments of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0041] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0043] Combine the following Figures 1 to 7 It should be understood that the following description is only an illustrative embodiment of the present invention and does not constitute a limitation on the present invention.

[0044] like Figure 1 As shown, the present invention provides a cold and heat source device for an automobile thermal system suitable for flammable refrigerants, comprising: a chassis 100 and a refrigerant circulation system 200 disposed in the chassis 100 .

[0045] The chassis 100 includes a first cavity 101 and a second cavity 102 which are separated and independently sealed. The first cavity 101 includes a first suction port 111 and a first water return port 113 , and the second cavity 102 includes a second suction port 112 and a second water return port 114 .

[0046] Furthermore, the refrigerant circulation system 200 is connected to the first suction port 111 and the second suction port 112 respectively.

[0047] The first water return port 113 is used to communicate with one of the thermal management heat exchange device and the external heat exchanger; the second water return port 114 is used to communicate with the other of the thermal management heat exchange device and the external heat exchanger.

[0048] Continue to refer Figure 1 In one embodiment of the present invention, the outer wall 104 and the inner wall 105 of the chassis 100 form an annular area, and the annular area is divided into a first cavity 101, a second cavity 102 and an intermediate cavity 110 by a partition 103.

[0049] The middle cavity 110 separates the first cavity 101 and the second cavity 102 from each other.

[0050] In this embodiment, in order to increase the connection strength between the inner wall 105 and the outer wall 104 , the inner wall 105 and the outer wall 104 are connected via a reinforcing rib 106 .

[0051] like Figure 2 As shown, in this embodiment, a cover 107 is installed above the annular area to achieve packaging.

[0052] The first and second cavities 101 and 102 are formed by the inner and outer walls to realize the functions of constant pressure of the circulation system and accommodating expansion water, while strengthening the structural strength of the box, improving the anti-collision ability of the device, and having thermal insulation functions to improve the operating performance of the device.

[0053] Continue to refer Figure 2 In one embodiment of the present invention, the refrigerant cycle system 200 includes a compressor 201, a condenser 202, a liquid storage tank 203, an expansion valve 204 and an evaporator 205 which are sequentially connected end to end to form a loop.

[0054] like Figure 3 As shown, in one embodiment of the present invention, the condenser 202 includes a first side suction port 211 and a first side outlet 213, a first pump 206 is installed between the first side suction port 211 and the first suction port 111, and the first side outlet 213 is connected to one of the thermal management heat exchange device and the external heat exchanger.

[0055] The evaporator 205 includes a second side suction port 212 and a second side outlet 214. A second pump 207 is installed between the second side suction port 212 and the second suction port 112. The second side outlet 214 is connected to the other of the external heat exchanger and the thermal management heat exchange device.

[0056] In a specific embodiment of the present invention, there is a medium in both the first cavity 101 and the second cavity 102 , and the medium may be water, antifreeze, coolant, etc.

[0057] Specifically, the compressor 201 outputs high-temperature and high-pressure gas refrigerant, which outputs low-temperature and high-pressure liquid refrigerant through the condenser 202, releases heat, and stores the liquid refrigerant in the liquid storage tank 203. After throttling by the expansion valve 204, the two-phase fluid with low temperature and low pressure is output, and the high-temperature gaseous refrigerant is output through the evaporator 205, which absorbs heat and finally flows back to the compressor 201.

[0058] During the entire refrigerant cycle, the first pump 206 pumps the medium in the first cavity 101 to the first side suction port 211 of the condenser 202, and then flows out through the first side outlet 213 of the condenser 202. The medium in the first cavity 101 absorbs the heat released by the condenser 202, and the medium in the first cavity 101 is heated.

[0059] Furthermore, the second pump 207 pumps the medium in the second volume chamber to the second side suction port 212 of the evaporator 205, and then flows out through the second side outlet 214 of the evaporator 205. The medium in the second volume chamber 102 absorbs heat and is therefore cooled.

[0060] like Figure 4 As shown, in another optional embodiment of the present invention, the refrigerant cycle system includes a quasi-two-stage compression air-supply type compressor 220, a condenser 202, a first expansion valve 222, a gas-liquid separation liquid storage tank 221, a second expansion valve 223 and an evaporator 205 which are sequentially connected end to end to form a loop.

[0061] The gas-liquid separation storage tank 221 is connected to the quasi-two-stage compression air-supplementing compressor 220 .

[0062] Specifically, the quasi-two-stage compression air-supply type compressor 220 compresses the refrigerant into a high-temperature and high-pressure gas, which is then cooled into liquid by the condenser 202 and stored in the gas-liquid separation reservoir 221. The separated liquid refrigerant is throttled by the first expansion valve 222 to become a low-temperature and low-pressure two-phase fluid, and then absorbs heat in the evaporator 205 to evaporate into gas and return to the quasi-two-stage compression air-supply type compressor 220.

[0063] The gaseous refrigerant separated by the gas-liquid separation accumulator 221 directly returns to the quasi-two-stage compression air-supplementing compressor 220 through the air-supplementing port of the quasi-two-stage compression air-supplementing compressor 220 to improve system performance, and the cycle continues.

[0064] like Figure 5As shown, in an optional embodiment of the present invention, the first side outlet 213, the second side outlet 214, the first water supply port 301 of the thermal management heat exchange device 300 and the second water supply port 401 of the external heat exchanger 400 are connected via a first four-way reversing valve 310.

[0065] It should be noted that the thermal management heat exchange device 300 of the present application is a thermal management heat exchange device 300 that briefly represents various heat exchange devices of the thermal management system such as the vehicle interior air conditioner, battery, motor, and electronic control for thermal management of the vehicle.

[0066] At the same time, the first water return port 113 , the second water return port 114 , the third water return port 302 of the thermal management and heat exchange device 300 and the fourth water return port 402 of the external heat exchanger are connected via a second four-way reversing valve 410 .

[0067] In one embodiment of the present invention, when the automobile thermal system cold and heat source device of the present application provides heat: the first side outlet 213 is connected to the first water supply port 301 of the thermal management heat exchange device 300, and the second side outlet 214 is connected to the second water supply port 401 of the external heat exchanger 400.

[0068] The first water return port 113 is connected to the third water return port 302 of the heat management heat exchange device 300, and the second water return port 114 is connected to the fourth water return port 402 of the external heat exchanger 400. The external heat exchanger 400 absorbs heat from the external environment.

[0069] In one embodiment of the present invention, when the cold and heat source device of the automobile thermal system of the present application provides cold energy: the first side outlet 213 is connected to the second water supply port 401 of the external heat exchanger 400, and the second side outlet 214 is connected to the first water supply port 301 of the thermal management heat exchange device 300.

[0070] The first water return port 113 is connected to the fourth water return port 402 of the off-board heat exchanger 400, and the second water return port 114 is connected to the third water return port 302 of the thermal management heat exchange device 300. The heat of the thermal management heat exchange device 300 is dissipated to the off-board environment through the off-board heat exchanger 400.

[0071] like Figure 6 As shown, in another optional embodiment of the present invention, the first side outlet 213 is provided with two connecting ports, namely, a first-level first side outlet 213a and a second-level first side outlet 213b. Similarly, the second side outlet includes a first-level second side outlet 214a and a second-level second side outlet 214b; the first return water port 113 includes a first-level first return water port 113a and a second-level first return water port 113b; the second return water port 114 includes a first-level second return water port 114a and a second-level second return water port 114b.

[0072] Among them, the first-level first side outlet 213a, the first-level second side outlet 214a and the first water supply port 301 are connected through the first three-way reversing valve 320; the second-level first side outlet 213b, the second-level first side outlet 213b and the second water supply port 401 are connected through the second three-way reversing valve 321.

[0073] Among them, the first level first return water port 113a, the second level second return water port 114a and the third return water port 302 are connected through the third three-way reversing valve 421; the second level first return water port 113b, the second level second return water port 114b and the fourth return water port 402 are connected through the fourth three-way reversing valve 420.

[0074] Specifically, in this embodiment, when the cold and hot source device of the automobile thermal system of the present application provides heat:

[0075] The first side outlet 213a of the first level is connected to the first water supply port 301, and the first return water port 113a of the first level is connected to the third return water port 302; at the same time, the second side outlet 214b of the second level is connected to the second water supply port 401, and the second return water port 114b of the second level is connected to the fourth return water port 402.

[0076] When the cold and heat source device of the automobile thermal system of the present application provides coldness:

[0077] The first-level second side outlet 214a is connected to the first water supply port 301 , and the first-level second water return port 114a is connected to the third water return port 302 ; at the same time, the second-level first side outlet 213b is connected to the second water supply port 401 , and the second-level first water return port 113b is connected to the fourth water return port 402 .

[0078] Continue to refer Figure 2 In one embodiment of the present invention, the outer wall of the chassis 100 is provided with a lifting lug 108 for vibration reduction installation of the chassis 100 .

[0079] like Figure 7 As shown, in another embodiment of the present invention, the chassis 100 further comprises a case cover 500, and the case cover 500 is provided with an explosion-proof power supply module 501 and a control and display module 500. The control and display module 500 is connected to the explosion-proof power supply module 501.

[0080] Furthermore, in this embodiment, the power supply module includes a wiring terminal and a pressure relief safety valve.

[0081] In the embodiment of the present invention, the case cover 500 is sealed and connected to the case 100 .

[0082] Specifically, refer to Figure 2 A sealing groove 109 is provided on the cover 107 of the chassis 100, and a sealing ring is placed in the sealing groove 109. The box cover 500 is covered on the chassis 100 and connected by fasteners.

[0083] In other words, connection holes are provided on both the box cover 500 and the cover 107 for connection with fasteners, and the connection holes on the cover 107 do not penetrate the cover 107 .

[0084] The present invention also provides a vehicle, comprising a vehicle frame and the above-mentioned automobile thermal system cold and heat source device suitable for flammable refrigerants, wherein the automobile thermal system cold and heat source device is installed in the vehicle frame.

[0085] Furthermore, in one embodiment of the present invention, the cold and hot source device of the automobile thermal system is installed in the frame of the vehicle via the lifting lug 108 .

[0086] The present invention provides a heat and cold source device for an automobile thermal system suitable for flammable refrigerants. The device forms a first cavity and a second cavity that are separated and independently sealed in a chassis, fills the first cavity and the second cavity with flammable refrigerant, and places the device in the chassis with a refrigerant circulation system to prevent leakage of the flammable refrigerant due to collision. The device simplifies the process of the refrigerant circulation system, effectively reduces the amount of refrigerant used, improves safety performance, and forms a temperature control loop with a thermal management heat exchange device and an external heat exchanger to achieve better temperature control effects.

[0087] By providing cold and heat to the vehicle's thermal management components through the refrigerant circulation system, heat can be allocated among multiple thermal management units such as interior air conditioning, battery temperature control, and motor heat dissipation, which is beneficial to improving the overall energy efficiency of the system.

[0088] Furthermore, the present invention also provides a vehicle, which also has the advantages of the above-mentioned automotive thermal system cold and heat source device suitable for flammable refrigerants because it includes the automotive thermal system cold and heat source device suitable for flammable refrigerants.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cold and heat source device for automobile thermal system suitable for flammable refrigerants, characterized in that: include: a chassis and a refrigerant circulation system disposed in the chassis, The chassis comprises a first cavity and a second cavity which are separated and independently sealed, the first cavity comprising a first suction port and a first water return port, the second cavity comprising a second suction port and a second water return port, The refrigerant circulation system is connected to the first suction port and the second suction port respectively. The first water return port is used to communicate with one of the thermal management heat exchange device and the external heat exchanger; the second water return port is used to communicate with the other of the thermal management heat exchange device and the external heat exchanger; The refrigerant circulation system comprises a quasi-two-stage compression air-injection type compressor, a condenser, a first expansion valve, a gas-liquid separation liquid storage tank, a second expansion valve and an evaporator which are sequentially connected end to end to form a loop, wherein the gas-liquid separation liquid storage tank is connected to the quasi-two-stage compression air-injection type compressor; The outer wall of the chassis is provided with a lifting lug.

2. The cold and heat source device for automobile thermal system suitable for flammable refrigerants according to claim 1, characterized in that: The condenser comprises a first side suction port and a first side outlet, a first pump is installed between the first side suction port and the first suction port, and the first side outlet is connected to one of the thermal management heat exchange device and the vehicle exterior heat exchanger, The evaporator includes a second side suction port and a second side outlet, a second pump is installed between the second side suction port and the second suction port, and the second side outlet is connected to the other of the external heat exchanger and the thermal management heat exchange device.

3. The cold and heat source device for automobile thermal system suitable for flammable refrigerants according to claim 2, characterized in that: The first side outlet is connected to the first water supply port of the thermal management heat exchange device, and the second side outlet is connected to the second water supply port of the off-vehicle heat exchanger. Wherein, the first water return port is connected to the third water return port of the thermal management heat exchange device, and the second water return port is connected to the fourth water return port of the off-vehicle heat exchanger.

4. The cold and heat source device for automobile thermal system suitable for flammable refrigerants according to claim 2, characterized in that: The first side outlet is connected to the second water supply port of the off-vehicle heat exchanger, and the second side outlet is connected to the first water supply port of the thermal management heat exchange device. Wherein, the first water return port is connected to the fourth water return port of the off-vehicle heat exchanger, and the second water return port is connected to the third water return port of the thermal management heat exchange device.

5. The cold and heat source device for automobile thermal system suitable for flammable refrigerants according to claim 1, characterized in that: The chassis also includes a box cover, which is provided with an explosion-proof power supply module and a control and display module.

6. The cold and heat source device for automobile thermal system suitable for flammable refrigerants according to claim 5, characterized in that: The box cover is sealingly connected to the chassis.

7. A vehicle, characterized in that: The invention comprises a vehicle frame and a cold or heat source device for a vehicle thermal system suitable for flammable refrigerants as claimed in any one of claims 1 to 6, wherein the cold or heat source device for the vehicle thermal system is installed in the vehicle frame.

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