Liquid cooling radiator and automobile automatic driving area radiating device

Abstract

The utility model provides a liquid cooling radiator and an automobile automatic driving area radiating device, the liquid cooling radiator comprises a water inlet and outlet end plate, a transition end plate, a water inlet runner plate, a water outlet runner plate, a water inlet nozzle, a water outlet nozzle and a heat conduction layer, the water inlet and outlet end plate is provided with a water inlet cavity and a water outlet cavity, and the water inlet runner plate is provided with a water inlet straight runner; the transition end plate is provided with a transition cavity, and the water outlet runner plate is provided with a water outlet straight runner; the water inlet runner plate is provided with a first heat conduction area, the water outlet runner plate is provided with a second heat conduction area, and the heat conduction layers cover the first heat conduction area and the second heat conduction area respectively. A runner plate of the liquid cooling radiator is changed into an integral water inlet runner plate and an integral water outlet runner plate, the structure is simple, a water inlet straight runner and a water outlet straight runner are changed into strip-shaped regular runners, so that the pressure drop caused by a turbulent flow area is reduced, the energy consumption of a cooling unit is further reduced, meanwhile, a first heat conduction area and a second heat conduction area are covered with heat conduction layers respectively, and the heat conduction efficiency is improved. When the liquid cooling radiator is attached to the automobile central control system, normal heat transfer of the system is guaranteed.

Description

Technical Field

[0001] The present disclosure relates to the field of heat dissipation technology for new energy vehicles, and in particular to a liquid-cooled radiator and a heat dissipation device for an automobile automatic driving domain. Background Art

[0002] In the era of intelligent vehicles, the traditional distributed electrical and electronic architecture can no longer meet the needs of the digital transformation of the entire vehicle, and the "domain"-based electrical and electronic architecture has begun to emerge. The automotive domain controller is divided into five parts: power domain, chassis domain, cockpit domain, autonomous driving domain and body domain. The autonomous driving domain belongs to the performance domain controller, which is upgraded from the central control system. It mainly controls modules such as millimeter wave radar, inertial navigation, GPS, camera and lidar. Therefore, with the widespread application of autonomous driving domain controllers, the heat dissipation requirements of autonomous driving domain controllers are also increasing. From the perspective of heat dissipation requirements, liquid cooling is a heat dissipation method that can both extend the life of the chip and effectively distribute the temperature of the autonomous driving domain.

[0003] Liquid cooling is to bring the temperature to a larger heat dissipation device through the flow of liquid in the flow channel, so as to achieve the purpose of heat dissipation, such as Chinese patent CN116505132B. The liquid cooling radiator is basically composed of five major components: flow channel plate 11, end plate 12, nozzle 13, cover plate 14 and flat plate 15 (such as Figure 1 The five major components together form a liquid cooling circulation system. The heat in the autonomous driving domain is taken out through the liquid cooling radiator to achieve the purpose of heat dissipation.

[0004] Generally speaking, the better the heat conduction effect, the higher the heat dissipation efficiency, and the easier it is to control the system temperature. In order to improve the heat conduction effect, it is necessary to set a turbulent area 16 (such as Figure 2 However, the following problems may exist for the car domain control device in the car center control area:

[0005] The pressure drop from the flow inlet to the outlet is too large, and the pressure loss in the turbulence area is large. Due to the uneven pressure, additional pressure is required to maintain the pressure, which will increase the energy consumption of the car's cooling unit. For both new energy and traditional vehicles, the mainstream research and development route of reducing energy consumption and increasing endurance is obviously contrary to this, especially for pure electric new energy vehicles, the problem is more prominent. Utility Model Content

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a liquid-cooled radiator and a heat dissipation device for an automobile automatic driving domain that effectively reduces the energy consumption of a cooling unit, has a relatively simple structure, and does not change the heat dissipation effect.

[0007] The purpose of this disclosure is achieved through the following technical solutions:

[0008] A liquid cooling radiator comprises a water inlet and outlet end plate, a transition end plate, a water inlet flow channel plate and a water outlet flow channel plate, a water inlet nozzle and a water outlet nozzle, wherein the water inlet nozzle and the water outlet nozzle are both mounted on the water inlet and outlet end plate, both ends of the water inlet flow channel plate and both ends of the water outlet flow channel plate are respectively connected to the water inlet and outlet end plate and the transition end plate, and the water inlet flow channel plate is spaced apart from the water outlet flow channel plate;

[0009] The water inlet and outlet end plates are provided with a water inlet cavity and a water outlet cavity, the water inlet flow channel plate is provided with a water inlet straight flow channel, the transition end plate is provided with a transition cavity, the water outlet flow channel plate is provided with a water outlet straight flow channel, and the water inlet nozzle is connected with the water outlet nozzle through the water inlet cavity, the water inlet straight flow channel, the transition cavity and the water outlet straight flow channel in sequence;

[0010] The liquid cooling radiator further comprises a heat conducting layer, the water inlet channel plate is provided with a first heat conducting area, the water outlet channel plate is provided with a second heat conducting area, and the heat conducting layer covers the first heat conducting area and the second heat conducting area respectively.

[0011] In one embodiment, the thermal conductive layer is a high thermal conductive material.

[0012] In one of the embodiments, the water inlet and outlet end plate is provided with a water inlet pipe, the water inlet nozzle is installed on the water inlet pipe, and the water inlet pipe is connected to the water inlet cavity.

[0013] In one of the embodiments, the water inlet and outlet end plate is provided with a water outlet pipe, the water outlet nozzle is installed on the water outlet pipe, and the water outlet pipe is connected to the water outlet cavity.

[0014] In one embodiment, the water inlet and outlet end plate includes an water inlet and outlet end plate body and a first cover plate. The water inlet and outlet end plate body is provided with a first limiting groove, which is respectively connected to the water inlet chamber and the water outlet chamber, and the first cover plate is installed in the first limiting groove.

[0015] In one of the embodiments, a convex column is provided in the body of the water inlet and outlet end plate, the convex column is arranged between the water inlet cavity and the water outlet cavity, and the first cover plate abuts against the convex column.

[0016] In one embodiment, the transition end plate includes a transition end plate body and a second cover plate, the transition end plate body is provided with a second limiting groove, the second limiting groove is communicated with the transition cavity, and the second cover plate is installed in the second limiting groove.

[0017] In one embodiment, the water inlet and outlet end plate body is provided with a first connecting groove, the transition end plate body is provided with a second connecting groove, and two ends of the water inlet channel plate are respectively abutted against the first connecting groove and the second connecting groove.

[0018] In one embodiment, the water inlet and outlet end plate body is provided with a third connecting groove, the transition end plate body is provided with a fourth connecting groove, and both ends of the water outlet channel plate are respectively abutted against the third connecting groove and the fourth connecting groove.

[0019] A heat dissipation device for an automobile autonomous driving domain comprises the liquid-cooled radiator described in any of the above embodiments.

[0020] Compared with the prior art, the present invention has at least the following advantages:

[0021] 1. Compared with the water inlet and outlet flow channel plates (composed of a flow channel plate body and a flat plate) in the liquid-cooled radiator of the prior art, the flow channel plates of the liquid-cooled radiator disclosed in the present invention are changed to integral water inlet flow channel plates and water outlet flow channel plates, which reduces the assembly process of the flow channel plates and the flat plates, and thus the structure is relatively simple.

[0022] 2. The water inlet and outlet straight channels are changed to regular strip channels to reduce the pressure drop caused by the setting of the turbulence zone, so that the liquid-cooled radiator is subjected to pressure balance by the cooling unit, thereby reducing the energy consumption of the cooling unit. At the same time, the heat conduction layer is respectively covered to the first heat conduction zone and the second heat conduction zone, so that when the liquid-cooled radiator is fitted with the car's central control system, the normal heat transfer of the system is guaranteed, and the thermal conductivity of the product will not be affected by the structural change of the liquid-cooled radiator. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of a liquid cooling radiator in the prior art;

[0025] Figure 2 for Figure 1 A schematic diagram of the structure of the flow channel plate in the liquid cooling radiator shown;

[0026] Figure 3 This is a schematic diagram of the overall structure of a liquid cooling radiator in one embodiment;

[0027] Figure 4 for Figure 3 The overall structural schematic diagram of the liquid cooling radiator shown is from another angle;

[0028] Figure 5 for Figure 3 A partial structural side view of a liquid cooling radiator is shown;

[0029] Figure 6 for Figure 5 AA structural cross-sectional view of the liquid cooling radiator shown;

[0030] Figure 7 for Figure 5 A cross-sectional view of the DD structure of the liquid cooling radiator shown;

[0031] Figure 8 for Figure 3 The partial structural schematic diagram of the liquid cooling radiator shown is at another angle;

[0032] Fig. 9 for Figure 3 The partial structural schematic diagram of the liquid cooling radiator at another angle is shown, wherein the shaded parts are the first heat transfer area 310 and the second heat transfer area 410 respectively;

[0033] Fig.10 for Fig. 9 The structure schematic diagram of the first heat transfer area 310 and the second heat transfer area 410 in the liquid cooling radiator shown in another angle;

[0034] Fig.11 for Figure 3 The partial structural schematic diagram of the liquid cooling radiator shown at another angle;

[0035] Fig.12 for Figure 3 The partial structural schematic diagram of the liquid cooling radiator shown at another angle.

[0036] Figure numerals: 10, liquid-cooled radiator; 100, water inlet and outlet end plates; 101, water inlet cavity; 102, water outlet cavity; 103, water inlet pipe; 104, water outlet pipe; 110, water inlet and outlet end plate body; 110a, first limiting groove; 110b, first connecting groove; 110c, third connecting groove; 111, boss; 120, first cover plate; 200, transition end plate; 201, transition cavity; 210, transition end plate body; 210a, second limiting groove; 210b, second connecting groove; 210c, fourth connecting groove; 220, second cover plate; 300, water inlet flow channel plate; 301, water inlet direct current channel; 310, first heat transfer zone; 400, water outlet flow channel plate; 401, water outlet direct current channel; 410, second heat transfer zone; 500, water inlet nozzle; 600, water outlet nozzle. DETAILED DESCRIPTION

[0037] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0038] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0040] The present invention provides a liquid cooling radiator, comprising a water inlet and outlet end plate, a transition end plate, a water inlet flow channel plate and a water outlet flow channel plate, a water inlet nozzle and a water outlet nozzle, wherein the water inlet nozzle and the water outlet nozzle are both installed on the water inlet and outlet end plate, the two ends of the water inlet flow channel plate and the two ends of the water outlet flow channel plate are respectively connected to the water inlet and outlet end plate and the transition end plate, the water inlet flow channel plate and the water outlet flow channel plate are spaced apart; the water inlet and outlet end plate are provided with a water inlet cavity and a water outlet cavity, the water inlet The flow channel plate is provided with a water inlet straight channel, the transition end plate is provided with a transition cavity, the water outlet flow channel plate is provided with a water outlet straight channel, the water inlet nozzle is connected with the water outlet nozzle through the water inlet cavity, the water inlet straight channel, the transition cavity and the water outlet straight channel in sequence; the liquid cooling radiator also includes a heat conduction layer, the water inlet flow channel plate is provided with a first heat conduction zone, the water outlet flow channel plate is provided with a second heat conduction zone, and the heat conduction layer covers the first heat conduction zone and the second heat conduction zone respectively.

[0041] Compared with the water inlet and outlet flow channel plates (composed of a flow channel plate body and a flat plate) in the liquid-cooled radiator in the prior art, the flow channel plates of the liquid-cooled radiator disclosed in the present invention are changed to integral water inlet flow channel plates and water outlet flow channel plates, thereby reducing the assembly process of the flow channel plates and the flat plates and thus having a simpler structure; in addition, the water inlet straight channel and the water outlet straight channel are changed to strip-shaped regular flow channels, so that the pressure of the liquid-cooled radiator is balanced by the cooling unit to reduce the pressure drop caused by the setting of the turbulence zone, thereby reducing the energy consumption of the cooling unit, and at the same time, the heat conduction layer is respectively covered to the first heat conduction zone and the second heat conduction zone, so that when the liquid-cooled radiator is fitted with the automobile central control system, normal heat transfer of the system is guaranteed, and the heat conduction effect of the product will not be affected by the structural change of the liquid-cooled radiator.

[0042] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0043] like Figures 3 to 8 As shown, a liquid cooling radiator 10 of an embodiment includes a water inlet and outlet end plate 100, a transition end plate 200, a water inlet flow channel plate 300 and a water outlet flow channel plate 400, a water inlet nozzle 500 and a water outlet nozzle 600, the water inlet nozzle 500 and the water outlet nozzle 600 are both installed on the water inlet and outlet end plate 100, both ends of the water inlet flow channel plate 300 and both ends of the water outlet flow channel plate 400 are respectively connected to the water inlet and outlet end plate 100 and the transition end plate 200, and the water inlet flow channel plate 300 and the water outlet flow channel plate 400 are arranged at intervals; the water inlet and outlet end plate 100 is provided with a water inlet cavity 101 and a water outlet cavity 102 The water inlet channel plate 300 is provided with a water inlet straight channel 301, the transition end plate 200 is provided with a transition cavity 201, the water outlet channel plate 400 is provided with a water outlet straight channel 401, and the water inlet nozzle 500 is connected with the water outlet nozzle 600 through the water inlet cavity 101, the water inlet straight channel 301, the transition cavity 201 and the water outlet straight channel 401 in sequence; then, the cooling liquid enters from the water inlet nozzle 500, passes through the water inlet cavity 101, the water inlet straight channel 301, the transition cavity 201 and the water outlet straight channel 401 in sequence, and finally flows out from the water outlet nozzle 600, realizing the process of dissipating the heat source.

[0044] like Fig. 9 As shown, in one embodiment, the liquid cooling radiator 10 further includes a heat conduction layer (not shown), the water inlet channel plate 300 is provided with a first heat conduction area 310 (first shaded part), the water outlet channel plate 400 is provided with a second heat conduction area 410 (second shaded part), and the heat conduction layer covers the first heat conduction area 310 and the second heat conduction area 410 respectively, so as to further promote the heat conduction efficiency of the product and ensure the heat dissipation effect. Specifically, in combination with Fig. 9 and Fig.10 As shown, the first heat transfer area 310 is arranged on both sides of the water inlet channel plate 300 , that is, the contact surface of the water inlet channel plate 300 , and the second heat transfer area 410 is arranged on both sides of the water outlet channel plate 400 , and the contact surface of the water outlet channel plate 400 .

[0045] In this embodiment, if Figures 5 to 7 As shown, the water inlet straight channel 301 and the water outlet straight channel 401 are regular strip-shaped channels, so that the heat dissipation of the automobile central control system is uniform, and the pressure on the water inlet channel plate 300 and the water outlet channel plate 400 is uniform. At the same time, a heat conductive layer is coated on both sides of the water inlet channel plate 300 and both sides of the water outlet channel plate 400, so that the thermal conductivity of the product will not be lost while the structure is changed.

[0046] Furthermore, the present disclosure adopts an integral flow channel plate (the water inlet flow channel plate 300 and the water outlet flow channel plate 400 ) and eliminates the combination of the flat plate and the flow channel plate, so as to reduce the time required for the assembly process.

[0047] In one embodiment, the heat-conducting layer is a high-thermal-conducting material, specifically, 12W high-thermal-conducting silicone grease, so that the automobile central control system has a better effect in heat dissipation.

[0048] like Figure 8 As shown, in one embodiment, the water inlet and outlet end plate 100 is provided with a water inlet pipe 103, the water inlet nozzle 500 is installed on the water inlet pipe 103, and the water inlet pipe 103 is connected with the water inlet cavity 101. It can be understood that when the cooling liquid enters from the water inlet nozzle 500, it passes through the water inlet pipe 103 and then enters the water inlet cavity 101, so as to perform the subsequent heat dissipation step of the liquid-cooled radiator 10.

[0049] like Figure 8 As shown, in one embodiment, the water inlet and outlet end plate 100 is provided with a water outlet pipe 104, and the water outlet nozzle 600 is installed on the water outlet pipe 104, and the water outlet pipe 104 is connected with the water outlet cavity 102. It can be understood that after the cooling liquid dissipates heat from the heat source, it enters the water outlet cavity 102 and then flows out from the water outlet nozzle 600 through the water outlet pipe 104.

[0050] like Figure 3 and Figure 8 As shown, in one embodiment, the water inlet and outlet end plate 100 includes a water inlet and outlet end plate body 110 and a first cover plate 120. The water inlet and outlet end plate body 110 is provided with a first limiting groove 110a, and the first limiting groove 110a is communicated with the water inlet chamber 101 and the water outlet chamber 102 respectively, and the first cover plate 120 is installed in the first limiting groove 110a. Further, the first cover plate 120 is detachably installed in the first limiting groove 110a, and is interference fit with the first limiting groove 110a, so that the cooling liquid will not flow out from the first limiting groove 110a when passing through the water inlet chamber 101 and the water outlet chamber 102.

[0051] In one embodiment, a convex column 111 is provided in the water inlet and outlet end plate body 110, and the convex column 111 is arranged between the water inlet cavity 101 and the water outlet cavity 102, and the first cover plate 120 abuts against the convex column 111. It can be understood that the convex column 111 is located between the water inlet cavity 101 and the water outlet cavity 102 and abuts against the convex column 111, which can separate the water inlet cavity 101 and the water outlet cavity 102, and the cooling liquid will not directly enter the water outlet cavity 102 from the water inlet cavity 101, thereby ensuring the cooling and heat dissipation process.

[0052] like Figure 4 and Figure 5 As shown, in one embodiment, the transition end plate 200 includes a transition end plate body 210 and a second cover plate 220, the transition end plate body 210 is provided with a second limiting groove 210a, the second limiting groove 210a is communicated with the transition chamber 201, and the second cover plate 220 is installed in the second limiting groove 210a. Further, the second cover plate 220 is detachably installed in the second limiting groove 210a, and is interference fit with the second limiting groove 210a, so that the cooling liquid will not flow out from the second limiting groove 210a when passing through the transition chamber 201.

[0053] like Figure 3 , Fig.11 and Fig.12 As shown, in one embodiment, the water inlet and outlet end plate body 110 is provided with a first connection groove 110b, the transition end plate body 210 is provided with a second connection groove 210b, and the two ends of the water inlet channel plate 300 are respectively abutted against the first connection groove 110b and the second connection groove 210b. It can be understood that when the two ends of the water inlet channel plate 300 are respectively abutted against the first connection groove 110b and the second connection groove 210b, the cooling liquid flows from the water inlet chamber 101 through the water inlet straight channel 301 to the transition chamber 201 when the liquid-cooled radiator 10 is working.

[0054] In one embodiment, the inlet and outlet end plate body 110 is provided with a third connection groove 110c, the transition end plate body 210 is provided with a fourth connection groove 210c, and the two ends of the outlet flow channel plate 400 are respectively abutted against the third connection groove 110c and the fourth connection groove 210c. It can be understood that when the two ends of the outlet flow channel plate 400 are respectively abutted against the third connection groove 110c and the fourth connection groove 210c, the cooling liquid passes through the outlet straight channel 401 from the transition chamber 201 to the outlet chamber 102 when the liquid cooling radiator 10 is working.

[0055] The present disclosure also provides a heat dissipation device for an automobile autonomous driving domain, comprising the liquid-cooled radiator 10 of any of the above-mentioned embodiments.

[0056] Compared with the prior art, the present invention has at least the following advantages:

[0057] 1. Compared with the water inlet and outlet flow channel plates (composed of a flow channel plate body 11 and a flat plate 15) in the prior art liquid-cooled radiator, the flow channel plates of the liquid-cooled radiator 10 disclosed in the present invention are changed to integral water inlet flow channel plates 300 and water outlet flow channel plates 400, which reduces the assembly process of the flow channel plates and the flat plates, and thus the structure is relatively simple.

[0058] 2. The water inlet straight channel 301 and the water outlet straight channel 401 are changed into regular strip-shaped flow channels to reduce the pressure drop caused by the setting of the turbulence zone, so that the liquid-cooled radiator 10 is subjected to the pressure balance of the cooling unit, thereby reducing the energy consumption of the cooling unit. At the same time, the heat conduction layer is respectively covered to the first heat conduction area 310 and the second heat conduction area 410, so that when the liquid-cooled radiator 10 is attached to the automobile central control system, the normal heat transfer of the system is guaranteed, and the heat conduction effect of the product will not be affected by the structural change of the liquid-cooled radiator 10.

[0059] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the disclosed patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the disclosed patent shall be subject to the attached claims.

Claims

1. A liquid cooling radiator, comprising a water inlet and outlet end plate, a transition end plate, a water inlet flow channel plate and a water outlet flow channel plate, a water inlet nozzle and a water outlet nozzle, wherein the water inlet nozzle and the water outlet nozzle are both mounted on the water inlet and outlet end plate, both ends of the water inlet flow channel plate and both ends of the water outlet flow channel plate are respectively connected to the water inlet and outlet end plate and the transition end plate, the water inlet flow channel plate and the water outlet flow channel plate are spaced apart, and characterized in that: The water inlet and outlet end plates are provided with a water inlet cavity and a water outlet cavity, the water inlet flow channel plate is provided with a water inlet straight flow channel, the transition end plate is provided with a transition cavity, the water outlet flow channel plate is provided with a water outlet straight flow channel, and the water inlet nozzle is connected with the water outlet nozzle through the water inlet cavity, the water inlet straight flow channel, the transition cavity and the water outlet straight flow channel in sequence; The liquid cooling radiator further comprises a heat conducting layer, the water inlet channel plate is provided with a first heat conducting area, the water outlet channel plate is provided with a second heat conducting area, and the heat conducting layer covers the first heat conducting area and the second heat conducting area respectively.

2. The liquid cooling radiator according to claim 1, characterized in that: The heat-conducting layer is made of high heat-conducting material.

3. The liquid cooling radiator according to claim 1, characterized in that: The water inlet and outlet end plate is provided with a water inlet pipe, the water inlet nozzle is installed on the water inlet pipe, and the water inlet pipe is communicated with the water inlet cavity.

4. The liquid cooling radiator according to claim 1, characterized in that: The water inlet and outlet end plate is provided with a water outlet pipe, the water outlet nozzle is installed on the water outlet pipe, and the water outlet pipe is communicated with the water outlet cavity.

5. The liquid cooling radiator according to claim 1, characterized in that: The water inlet and outlet end plate includes a water inlet and outlet end plate body and a first cover plate. The water inlet and outlet end plate body is provided with a first limiting groove, which is respectively connected to the water inlet cavity and the water outlet cavity. The first cover plate is installed in the first limiting groove.

6. The liquid cooling radiator according to claim 5, characterized in that: A convex column is provided in the water inlet and outlet end plate body, the convex column is arranged between the water inlet cavity and the water outlet cavity, and the first cover plate abuts against the convex column.

7. The liquid cooling radiator according to claim 5, characterized in that: The transition end plate includes a transition end plate body and a second cover plate. The transition end plate body is provided with a second limiting groove, the second limiting groove is communicated with the transition cavity, and the second cover plate is installed in the second limiting groove.

8. The liquid cooling radiator according to claim 7, characterized in that: The water inlet and outlet end plate body is provided with a first connecting groove, the transition end plate body is provided with a second connecting groove, and two ends of the water inlet channel plate are respectively abutted against the first connecting groove and the second connecting groove.

9. The liquid cooling radiator according to claim 7, characterized in that: The water inlet and outlet end plate body is provided with a third connecting groove, the transition end plate body is provided with a fourth connecting groove, and two ends of the water outlet channel plate are respectively abutted against the third connecting groove and the fourth connecting groove.

10. A heat dissipation device for an automobile automatic driving domain, characterized in that: It comprises the liquid cooling radiator as described in any one of claims 1 to 9.

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