Cooling device and vehicle

Abstract

The utility model provides a cooling device and a vehicle. The cooling device comprises a cooling heat insulation plate and an electric drive cooling loop. The cooling heat insulation plate is used for being attached to the surface of a part to be cooled. A cooling pipeline is arranged in the cooling heat insulation plate, the electric drive cooling loop is connected with the cooling pipeline in parallel, and cooling and heat insulation are conducted on the surface area of the part to be cooled through cooling liquid in the electric drive cooling loop. Compared with the prior art, the cooling device replaces the cooling mode that the surface of the to-be-cooled part is insulated from heat through a heat insulation cover-soft material, the surface of the to-be-cooled part is cooled through the cooling heat insulation plate with the interior capable of being electrified to drive cooling loop cooling liquid, and the cost and the weight of the heat insulation cover and the soft material are reduced; the overall cost and weight of the to-be-cooled part cannot be increased, at least one assembly process is reduced, and the labor cost of assembly of the to-be-cooled part is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to cooling device technical field especially relates to a cooling device and vehicle. BACKGROUND

[0002] The existing cooling device is generally provided with 2-3 layers of heat shields to ensure that the surface temperature of the cooled part is within a normal range, that is, the first layer of exhaust pipe heat shield can isolate the heat radiation of the exhaust pipe to the surface of the cooled part, so that the ambient temperature around the surface of the cooled part is reduced, the second layer of cooled part body heat shield can also isolate the heat radiation of the exhaust pipe to the surface of the cooled part, and the third layer of soft material blocks the hot air flow from contacting the surface of the cooled part. SUMMARY

[0003] The utility model provides a kind of cooling device and vehicle to solve the problem that the existing cooling device can cause the overall cost and weight of the cooled part to rise.

[0004] A kind of cooling device, including cooling heat shield and electric drive cooling circuit;

[0005] The cooling heat shield is used to adhere to the surface of the cooled part.

[0006] Cooling pipeline is arranged in the cooling heat shield, and the electric drive cooling circuit is connected with the cooling pipeline in parallel, and the surface area of the cooled part is cooled and insulated by the cooling liquid in the electric drive cooling circuit.

[0007] Preferably, the cooling device further includes a switch valve.

[0008] The switch valve is arranged between the liquid outlet end of the electric drive cooling circuit and the liquid inlet end of the cooling pipeline.

[0009] Preferably, the cooling device further includes a first joint and a second joint.

[0010] One end of the first joint is welded on the cooling heat shield, and the liquid inlet end of the cooling pipeline is communicated, and the other end of the first joint is connected with the liquid outlet end of the electric drive cooling circuit.

[0011] One end of the second joint is welded on the cooling heat shield, and the liquid outlet end of the cooling pipeline is communicated, and the other end of the second joint is connected with the liquid inlet end of the electric drive cooling circuit.

[0012] Preferably, the cooling device further includes a first cooling pipe and a second cooling pipe.

[0013] One end of the first cooling pipe is connected to the first joint by a clamp, and the other end of the first cooling pipe is connected to the liquid outlet of the electrically driven cooling circuit.

[0014] One end of the second cooling pipe is connected to the first joint by a clamp, and the other end of the second cooling pipe is connected to the liquid inlet of the electrically driven cooling circuit.

[0015] Preferably, the material of the cooling heat insulation plate is aluminum, and the materials of the first cooling pipe and the second cooling pipe are both thermopolymer.

[0016] Preferably, the electrically driven cooling circuit comprises a medium-temperature radiator, a first three-way joint, and an electrically driven component.

[0017] The first end of the medium-temperature radiator is connected to the first end of the first three-way joint through a first pipeline, and the second end of the medium-temperature radiator is connected to the second end of the first three-way joint through a second pipeline; the electrically driven component is arranged on the second pipeline.

[0018] The liquid inlet of the cooling pipeline is connected to the first end of the first three-way joint, and the liquid inlet of the cooling pipeline is connected to the second end of the first three-way joint.

[0019] Preferably, the electrically driven cooling circuit further comprises an electronic water pump, which is arranged on the first pipeline to control the flow rate of the cooling liquid in the first pipeline.

[0020] Preferably, the electrically driven cooling circuit further comprises a high-temperature radiator and an exhaust gas recirculation module.

[0021] The high-temperature radiator is arranged on one side of the medium-temperature radiator, the high-temperature radiator is connected to the exhaust gas recirculation module through an air pipe, and the exhaust gas recirculation module is connected to the third end of the first three-way joint through an air pipe.

[0022] Preferably, the electrically driven cooling circuit further comprises a condenser and an expansion water kettle; the condenser is arranged on the other side of the medium-temperature radiator, the first end of the expansion water kettle is connected to the condenser, the second end of the expansion water kettle is connected to the first pipeline through a second three-way valve, and the third end of the expansion water kettle is connected to the second pipeline through a third three-way valve.

[0023] A vehicle comprising a power battery and the cooling device.

[0024] The power battery is a to-be-cooled object, and the power battery is arranged below the vehicle chassis between the vehicle center channel exhaust pipe and the vehicle fuel tank.

[0025] The cooling heat insulation plate of the cooling device is attached to the surface of the power battery.

[0026] The cooling device provided by the embodiment of the utility model, the cooling liquid in the electric drive cooling circuit flows through the cooling pipeline of the cooling heat insulation plate, can take the heat generated by the heat radiation and heat convection of the exhaust pipe around the surface of the to-be-cooled part to the electric drive radiator, exchanges heat with the airflow of the specific equipment, and is transmitted to the air, avoiding the heat damage to the surface of the to-be-cooled part. Compared with the prior art, the cooling device in the example replaces the cooling mode of the surface of the to-be-cooled part which utilizes the heat insulation cover-soft material to insulate heat, utilizes the cooling heat insulation plate which can pass the cooling liquid of the electric drive cooling circuit to cool the surface of the to-be-cooled part, reduces the cost and weight of the heat insulation cover and the soft material, does not cause the increase of the overall cost and weight of the to-be-cooled part, reduces at least one assembly process, and reduces the labor cost of the assembly of the to-be-cooled part. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the description of the embodiment of the utility model, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without the creative labor.

[0028] Figure 1 It is the front view of the cooling heat insulation plate in an embodiment of the utility model;

[0029] Figure 2 It is the sectional view of the cooling heat insulation plate in an embodiment of the utility model;

[0030] Figure 3 It is the schematic view of the cooling device in an embodiment of the utility model.

[0031] 1, cooling heat insulation plate;2, to-be-cooled part;3, cooling pipeline;4, on-off valve;5, first joint;6, second joint;7, first cooling pipe;8, second cooling pipe;9, medium-temperature radiator;10, first three-way joint;11, electric drive assembly;111, communication module (IPS);112, integrated processing unit (IPU);113, drive module (GMC);12, first pipeline;13, second pipeline;14, electronic water pump;15, high-temperature radiator;16, exhaust gas recirculation module;17, condenser;18, expansion kettle;19, second three-way valve;20, third three-way valve. DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples.

[0033] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two.

[0034] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrally connected, can be mechanically connected, can also be electrically connected, can be directly connected, can also be indirectly connected through an intermediate medium, and can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0035] The utility model embodiment provides a kind of cooling device, refer to Figure 1 、 Figure 2 And Figure 3 , the cooling device includes cooling insulation board 1 and electric drive cooling circuit;Cooling insulation board 1 is used to adhere on the surface of the piece to be cooled 2;Cooling insulation board 1 is equipped with cooling pipeline 3, electric drive cooling circuit is connected with cooling pipeline 3 in parallel, and the surface area of the piece to be cooled 2 is cooled and insulated by cooling liquid in electric drive cooling circuit.

[0036] As an example, the cooling device comprises a cooling insulation plate 1 and an electrically driven cooling circuit; when installed, the cooling insulation plate 1 is attached to the surface of the to-be-cooled member 2; the cooling insulation plate 1 is provided with a cooling pipeline 3, and the electrically driven cooling circuit is connected in parallel with the cooling pipeline 3; the surface area of the to-be-cooled member 2 is cooled and insulated by the cooling liquid in the electrically driven cooling circuit. In this way, the cooling liquid in the electrically driven cooling circuit flows through the cooling pipeline 3 of the cooling insulation plate 1, and the heat generated by the thermal radiation and thermal convection of the exhaust pipe around the surface of the to-be-cooled member 2 can be taken to the electrically driven radiator (for example, a medium-temperature radiator 9), exchanged with the airflow of a specific device (for example, a front end module of a nacelle), and transferred to the air, thereby avoiding the thermal damage to the surface of the to-be-cooled member 2. Compared with the prior art, the cooling device in the example replaces the cooling method of using a heat insulation cover-soft material to insulate heat on the surface of the to-be-cooled member 2, and uses a cooling insulation plate 1 with an internal electrically driven cooling circuit cooling liquid to cool the surface of the to-be-cooled member 2, thereby reducing the cost and weight of the heat insulation cover and soft material, avoiding the increase of the overall cost and weight of the to-be-cooled member 2, reducing at least one assembly process, and reducing the labor cost of assembling the to-be-cooled member 2.

[0037] In an embodiment, with reference to Figure 3 , the cooling device further comprises a switch valve 4; the switch valve 4 is arranged between the liquid outlet end of the electrically driven cooling circuit and the liquid inlet end of the cooling pipeline 3.

[0038] As an example, the cooling device further comprises a switch valve 4; when installed, the switch valve 4 is arranged between the liquid outlet end of the electrically driven cooling circuit and the liquid inlet end of the cooling pipeline 3; in this way, the on-off of the cooling liquid in the electrically driven cooling circuit to the cooling pipeline 3 can be controlled by the switch valve 4; when the surface temperature of the to-be-cooled member 2 is high, the switch valve 4 is opened, the cooling liquid in the electrically driven cooling circuit can flow into the cooling pipeline 3, and the surface area of the to-be-cooled member 2 is cooled and insulated by the cooling liquid flowing in the cooling pipeline 3, thereby ensuring the normal operation of the to-be-cooled member 2. When the surface temperature of the to-be-cooled member 2 is low, the switch valve 4 is closed, and the cooling liquid in the electrically driven cooling circuit can not flow into the cooling pipeline 3, thereby avoiding the overcooling of the surface of the to-be-cooled member 2. In the example, the flow control of the cooling liquid by the switch valve 4 can keep the to-be-cooled member 2 within the optimal working temperature range, thereby being beneficial to reducing the energy consumption.

[0039] In an embodiment, with reference to Figure 1 and Figure 2 , the cooling device further comprises a first connector 5 and a second connector 6; one end of the first connector 5 is welded to the cooling insulation plate 1 and communicates with the liquid inlet end of the cooling pipeline 3, and the other end of the first connector 5 is connected to the liquid outlet end of the electrically driven cooling circuit; one end of the second connector 6 is welded to the cooling insulation plate 1 and communicates with the liquid outlet end of the cooling pipeline 3, and the other end of the second connector 6 is connected to the liquid inlet end of the electrically driven cooling circuit.

[0040] As an example, the cooling device further comprises a first joint 5 and a second joint 6; when installed, one end of the first joint 5 is welded on the cooling insulation plate 1 and communicates with the liquid inlet end of the cooling pipeline 3, and the other end of the first joint 5 is connected with the liquid outlet end of the electrically driven cooling circuit; one end of the second joint 6 is welded on the cooling insulation plate 1 and communicates with the liquid outlet end of the cooling pipeline 3, and the other end of the second joint 6 is connected with the liquid inlet end of the electrically driven cooling circuit; in this way, the electrically driven cooling circuit is connected in parallel with the cooling pipeline 3 on the cooling insulation plate 1 through the first joint 5 and the second joint 6, and the surface area of the to-be-cooled member 2 is cooled and insulated by the cooling liquid in the electrically driven cooling circuit, thereby avoiding thermal damage to the surface of the to-be-cooled member 2.

[0041] In an embodiment, referring to Figure 1 and Figure 2 , the cooling device further comprises a first cooling pipeline 7 and a second cooling pipeline 8; one end of the first cooling pipeline 7 is connected with the first joint 5 through a clamp, and the other end of the first cooling pipeline 7 is connected with the liquid outlet end of the electrically driven cooling circuit; one end of the second cooling pipeline 8 is connected with the first joint 5 through a clamp, and the other end of the second cooling pipeline 8 is connected with the liquid inlet end of the electrically driven cooling circuit.

[0042] As an example, the cooling device further comprises a first cooling pipeline 7 and a second cooling pipeline 8, the first cooling pipeline 7 is used for conveying the cooling liquid in the electrically driven cooling circuit into the cooling pipeline 3 of the cooling insulation plate 1, and the second cooling pipeline 8 is used for conveying the cooling liquid in the cooling pipeline 3 of the cooling insulation plate 1 back into the electrically driven cooling circuit; when installed, one end of the first cooling pipeline 7 is connected with the first joint 5 through a clamp, and the other end of the first cooling pipeline 7 is connected with the liquid outlet end of the electrically driven cooling circuit, thereby facilitating the installation and removal of the first cooling pipeline 7; one end of the second cooling pipeline 8 is connected with the first joint 5 through a clamp, and the other end of the second cooling pipeline 8 is connected with the liquid inlet end of the electrically driven cooling circuit, thereby facilitating the installation and removal of the second cooling pipeline 8; the electrically driven cooling circuit is connected in parallel with the cooling pipeline 3 on the cooling insulation plate 1 through the first cooling pipeline 7 and the second cooling pipeline 8 connected with the first joint 5 and the second joint 6 respectively, and the surface area of the to-be-cooled member 2 is cooled and insulated by the cooling liquid in the electrically driven cooling circuit, thereby avoiding thermal damage to the surface of the to-be-cooled member 2.

[0043] In an embodiment, referring to Figure 1 and Figure 2 , the material of the cooling insulation plate 1 is aluminum, and the materials of the first cooling pipeline 7 and the second cooling pipeline 8 are both thermopolymer.

[0044] As an example, the material of the cooling heat insulation plate 1 is aluminum (Al), and the materials of the first cooling pipe 7 and the second cooling pipe 8 are both EPDM; in this way, the performance of the materials can be utilized to make the cooling liquid in the cooling pipe 3 of the cooling heat insulation plate 1 more easily cool the surface area of the object to be cooled 2, the first cooling pipe 7 and the second cooling pipe 8 can absorb the heat carried by the cooling liquid in them and transfer it to the air, improving the heat transfer efficiency, thereby improving the heat absorption capacity of the cooling liquid in the electrically driven cooling circuit for the surface area of the object to be cooled 2.

[0045] In an embodiment, referring to Figure 3 , the electrically driven cooling circuit comprises a medium temperature radiator 9, a first three-way joint 10, and an electrically driven assembly 11; a first end of the medium temperature radiator 9 is connected to a first end of the first three-way joint 10 through a first pipe 12, and a second end of the medium temperature radiator 9 is connected to a second end of the first three-way joint 10 through a second pipe 13; the electrically driven assembly 11 is arranged on the second pipe 13; the liquid inlet end of the cooling pipe 3 is connected to the first end of the first three-way joint 10, and the liquid inlet end of the cooling pipe 3 is connected to the second end of the first three-way joint 10.

[0046] As an example, the electrically driven cooling circuit comprises a medium temperature radiator 9, a first three-way joint 10, and an electrically driven assembly 11; during installation, a first end of the medium temperature radiator 9 is connected to a first end of the first three-way joint 10 through a first pipe 12, and a second end of the medium temperature radiator 9 is connected to a second end of the first three-way joint 10 through a second pipe 13; the electrically driven assembly 11 is arranged on the second pipe 13; in this way, the cooling liquid in the medium temperature radiator 9 flows out from the second pipe 13, first passes through the electrically driven assembly 11, and then flows back to the medium temperature radiator 9 through the first three-way joint 10 and the first pipe 12, forming a cooling liquid circuit, which can cool and lower the temperature of the electrically driven assembly 11. The liquid inlet end of the cooling pipe 3 is connected to the first end of the first three-way joint 10, and the liquid inlet end of the cooling pipe 3 is connected to the second end of the first three-way joint 10; in this way, the cooling pipe 3 can be connected in parallel to the cooling liquid circuit, and the surface area of the object to be cooled 2 can be cooled and heat-insulated by the cooling liquid in the cooling liquid circuit. The electrically driven assembly 11 comprises a communication module (IPS) 111, an integrated processing unit (IPU) 112, and a driving module (GMC) 113; the cooling liquid in the second pipe 13 flows through the communication module (IPS) 111, the integrated processing unit (IPU) 112, and the driving module (GMC) 113 in sequence, which can cool and lower the temperature of the communication module (IPS) 111, the integrated processing unit (IPU) 112, and the driving module (GMC) 113.

[0047] In an embodiment, referring to Figure 3The electrically driven cooling circuit further comprises an electronic water pump 14 arranged on the first pipe 12 for controlling the flow rate of the cooling liquid in the first pipe 12.

[0048] As an example, the electrically driven cooling circuit further comprises an electronic water pump 14 arranged on the first pipe 12 for controlling the flow rate of the cooling liquid in the first pipe 12, so that the cooling liquid in the electrically driven cooling circuit can absorb heat from the outside according to the actual demand, thereby improving the use efficiency of the cooling liquid in the electrically driven cooling circuit.

[0049] In an embodiment, referring to Figure 3 The electrically driven cooling circuit further comprises a high-temperature radiator 15 and a waste gas recirculation module 16; the high-temperature radiator 15 is arranged on one side of the medium-temperature radiator 9, the high-temperature radiator 15 is connected to the waste gas recirculation module 16 through an air pipe, and the waste gas recirculation module 16 is connected to the third end of the first three-way joint 10 through an air pipe.

[0050] As an example, the electrically driven cooling circuit further comprises a high-temperature radiator 15 and a waste gas recirculation module 16; the high-temperature radiator 15 is arranged on one side of the medium-temperature radiator 9, the high-temperature radiator 15 is connected to the waste gas recirculation module 16 through an air pipe, and the waste gas recirculation module 16 is connected to the third end of the first three-way joint 10 through an air pipe. In this way, the high-temperature radiator 15 and the waste gas recirculation module 16 cooperate to generate cooling gas for cooling the engine, thereby ensuring that the engine operates within an appropriate temperature range.

[0051] In an embodiment, referring to Figure 3 The electrically driven cooling circuit further comprises a condenser 17 and an expansion water tank 18; the condenser 17 is arranged on the other side of the medium-temperature radiator 9, the first end of the expansion water tank 18 is connected to the condenser 17, the second end of the expansion water tank 18 is connected to the first pipe 12, and the third end of the expansion water tank 18 is connected to the second pipe 13.

[0052] As an example, the electrically driven cooling circuit further comprises a condenser 17 and an expansion water tank 18; during installation, the condenser 17 is arranged on the other side of the medium-temperature radiator 9 for participating in the air conditioning cooling system, the first end of the expansion water tank 18 is connected to the condenser 17, and the expansion water tank 18 can be used to store cooling liquid. The second end of the expansion water tank 18 is connected to the first pipe 12 through a second three-way valve 19, and the third end of the expansion water tank 18 is connected to the second pipe 13 through a third three-way valve 20, so that the expansion water tank 18 can deliver cooling liquid into the first pipe 12 and the second pipe 13, thereby achieving cooling of components at different positions. In addition, the expansion water tank 18 can also relieve the pressure of the first pipe 12 and the second pipe 13, so as to avoid excessive pressure in the pipes affecting the flow of the cooling liquid.

[0053] The utility model discloses an embodiment provides a kind of vehicle, including power battery and cooling device;Power battery is cooled part 2, power battery is arranged below vehicle chassis, between vehicle middle passage exhaust pipe and vehicle oil tank.

[0054] At present, in order to keep the best working temperature of the power battery, reduce the energy consumption, improve the safety and life of the power battery, the surface temperature of the power battery is generally ≤80℃, and the surface of the power battery on the vehicle is directly affected by the heat radiation and heat convection of the middle passage exhaust pipe, and the surface temperature is generally about 150℃ without heat insulation measures, which is far beyond the allowable temperature of the surface of the power battery (i.e. the temperature range that can be tolerated). Therefore, it is urgent to design a cooling device to cool the surface of the power battery. The vehicle includes a power battery and a cooling device; the power battery is a cooled part 2, and the power battery is arranged below the vehicle chassis, between the vehicle middle passage exhaust pipe and the vehicle oil tank; when the vehicle is running under high load, the hot gas flow and heat radiation generated by the engine and the exhaust pipe are isolated by the first layer of exhaust pipe heat insulation plate, and the surface temperature of the power battery is still about 120℃, which continues to impact the surface of the cooled part 2. When the vehicle is used in summer, especially under high temperature, high radiation and heavy load conditions, the surface of the power battery of the hybrid vehicle is affected by the heat radiation and heat convection of the engine and the exhaust pipe, which may cause the surface temperature to be too high, so that the power battery cannot maintain the normal working temperature, which affects the power performance of the vehicle and the life of the cooled part 2, and there is a risk of thermal runaway of the power battery.

[0055] As an example, the cooling device in the example includes a cooling heat insulation plate 1 and an electrically driven cooling circuit; when installed, the cooling heat insulation plate 1 is attached to the surface of the power battery; the cooling heat insulation plate 1 is provided with a cooling pipe 3, and the electrically driven cooling circuit is connected in parallel with the cooling pipe 3; the cooling liquid in the electrically driven cooling circuit cools and insulates the surface area of the power battery; in this way, the cooling liquid in the electrically driven cooling circuit flows through the cooling pipe 3 of the cooling heat insulation plate 1, which can take the heat generated by the exhaust pipe heat radiation and heat convection around the surface of the power battery to the electrically driven radiator (e.g. a medium temperature radiator 9), exchange heat with the airflow of a specific device (e.g. a cabin front end module), and transfer to the air, thereby avoiding the surface of the power battery from being damaged by heat. Compared with the prior art, the cooling device in the example replaces the cooling method of using a heat shield - soft material to insulate heat on the surface of the power battery, and uses a cooling heat insulation plate 1 with an electrically driven cooling circuit cooling liquid inside to cool the surface of the power battery, which reduces the cost and weight of the heat shield and soft material, and does not cause the overall cost and weight of the power battery to rise, reduces at least one assembly process, and reduces the labor cost of assembling the power battery. In the example, the flow of the cooling liquid is controlled by the switch valve 4, which can keep the power battery within the best working temperature range, which is beneficial to reduce the energy consumption.

[0056] The above-described embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. Cooling device, characterized in that The cooling device comprises a cooling and heat insulation plate and an electrically driven cooling circuit. The cooling and heat insulation plate is used to adhere to the surface of the object to be cooled. The cooling and heat insulation plate is provided with a cooling pipe, and the electrically driven cooling circuit is connected in parallel with the cooling pipe.

2. Cooling device according to claim 1, characterized in that The cooling device further comprises an on-off valve. The on-off valve is arranged between the liquid outlet end of the electrically driven cooling circuit and the liquid inlet end of the cooling pipe.

3. Cooling device according to claim 2, characterized in that The cooling device further comprises a first connector and a second connector. One end of the first connector is welded to the cooling and heat insulation plate and is in communication with the liquid inlet end of the cooling pipe, and the other end of the first connector is connected to the liquid outlet end of the electrically driven cooling circuit. One end of the second connector is welded to the cooling and heat insulation plate and is in communication with the liquid outlet end of the cooling pipe, and the other end of the second connector is connected to the liquid inlet end of the electrically driven cooling circuit.

4. Cooling device according to claim 3, characterized in that The cooling device further comprises a first cooling pipe and a second cooling pipe. One end of the first cooling pipe is connected to the first connector through a clamp, and the other end of the first cooling pipe is connected to the liquid outlet end of the electrically driven cooling circuit. One end of the second cooling pipe is connected to the first connector through a clamp, and the other end of the second cooling pipe is connected to the liquid inlet end of the electrically driven cooling circuit.

5. Cooling device according to claim 4, characterized in that The material of the cooling and heat insulation plate is aluminum, and the materials of the first cooling pipe and the second cooling pipe are both thermoplastic polymers.

6. The cooling device of claim 1, wherein The electrically driven cooling circuit comprises a medium-temperature radiator, a first three-way connector and an electrically driven component. The first end of the medium-temperature radiator is connected to the first end of the first three-way connector through a first pipe, and the second end of the medium-temperature radiator is connected to the second end of the first three-way connector through a second pipe. The liquid inlet end of the cooling pipe is connected to the first end of the first three-way connector, and the liquid outlet end of the cooling pipe is connected to the second end of the first three-way connector.

7. Cooling device according to claim 6, characterized in that The electrically driven cooling circuit further comprises an electronic water pump arranged on the first pipe for controlling the flow rate of the cooling liquid in the first pipe.

8. Cooling device according to claim 6, characterized in that The electrically driven cooling circuit further comprises a high-temperature radiator and an exhaust gas recirculation module. The high-temperature radiator is arranged on one side of the medium-temperature radiator, the high-temperature radiator is connected to the exhaust gas recirculation module through an air pipe, and the exhaust gas recirculation module is connected to the third end of the first three-way connector through an air pipe.

9. The cooling device of claim 6, wherein, The electrically driven cooling circuit further comprises a condenser and an expansion water kettle.

10. A vehicle characterized by comprising: The cooling device comprises a power battery and the cooling device according to any one of claims 1-9. The power battery is the object to be cooled, and the power battery is arranged below the vehicle chassis between the vehicle center channel exhaust pipe and the vehicle fuel tank. The cooling and heat insulation plate of the cooling device adheres to the surface of the power battery.

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