A cooling plate assembly

Abstract

This invention discloses a cooling plate assembly, including a cooling plate body and a first end plate. The cooling plate body has a central water channel, a first side water channel, and a second side water channel, which are respectively located on both sides of the central water channel along a second direction. The first end plate is connected to one end of the cooling plate body along a first direction, and a third side water channel is provided on the first end plate, connecting the first and second side water channels. Generally, the temperature in the middle of a battery module is the highest, while the temperature on the outer ring is lower. This cooling plate assembly has a central water channel and two side water channels. The two side water channels are located at the edges of the cooling plate assembly and are used to cool the outer ring of the battery module. The central water channel is located in the middle of the cooling plate assembly and is used to cool the middle of the battery module. The design of the first end plate connects the two side water channels in series. The structural arrangement of the water channels in this application's cooling plate assembly facilitates a balanced flow field and promotes balanced cooling of the battery module.

Description

Technical Field

[0001] This application belongs to the field of battery module cooling technology, and in particular relates to a cooling plate assembly. Background Technology

[0002] The cooling plate is usually in contact with the battery module and is used to exchange heat with the battery module to cool the battery cells and prevent the battery module from overheating, which would lead to poor battery module performance.

[0003] See Figure 7 As shown, existing cooling plates typically have only one water channel, which extends in a series of bends. During its extension, the water channel can be divided into multiple sub-channels, each adjacent to the other, resulting in an overall M-shaped water channel path. This simplistic design leads to an uneven flow field. Generally, the temperature is highest in the middle of a battery module and lower on the outer edges. If the battery module uses the aforementioned cooling plate, the uneven flow field within the cooling plate can easily cause uneven temperature regulation of the battery module's cells.

[0004] In view of this, the present invention is hereby proposed. Summary of the Invention

[0005] The present invention provides a cooling plate assembly.

[0006] This application provides the following technical solution:

[0007] A cooling plate assembly, comprising:

[0008] The cooling plate body has a central water channel, a first side water channel, and a second side water channel, with the first side water channel and the second side water channel respectively located on both sides of the central water channel along a second direction;

[0009] A first end plate is connected to one end of the cooling plate body along a first direction. A third side water channel is provided on the first end plate, and the third side water channel connects the first side water channel and the second side water channel.

[0010] Optionally, the cooling plate body has a cavity and a first inlet communicating with the cavity, and the cavity is divided by multiple dividing ribs to form the central water channel, the first side water channel and the second side water channel;

[0011] The first end plate has a first main board and a first plug-in portion, the first main board and the first plug-in portion are connected, and the third side water channel is formed on the first plug-in portion;

[0012] The first connector can be inserted into the cavity through the first socket, so that the third side water channel connects the first side water channel and the second side water channel, and the first motherboard closes the first socket.

[0013] Optionally, the first insertion portion has a first base plate, a first baffle, and a second baffle;

[0014] Both the first baffle and the second baffle are connected to the first bottom plate, and the third side waterway is formed between the first baffle and the second baffle;

[0015] The second retaining rib has two notches;

[0016] With the first insertion part able to be inserted into the cavity, the two notches are respectively connected to the first side waterway and the second side waterway.

[0017] Optionally, the first base plate is provided with an inclined surface corresponding to the position of the notch.

[0018] Optionally, the cooling plate body has a main water inlet channel and a main water outlet channel, both of which extend along a first direction. The main water inlet channel is connected to the first side water channel and the middle water channel, respectively, and the main water outlet channel is connected to the second side water tank and the middle water channel, respectively.

[0019] The central waterway, the main inlet waterway, and the main outlet waterway are all open at one end of the first inlet.

[0020] With the first insertion part inserted into the cavity, the second baffle can close the openings of the central waterway, the main water inlet, and the main water outlet located on the side of the first insertion port.

[0021] Optionally, the cavity is provided with a plurality of dividing ribs, each of the dividing ribs being arranged sequentially along the second direction, and each of the dividing ribs extending along the first direction;

[0022] Each of the aforementioned dividing ribs divides the cavity into the central waterway, the first side waterway, the second side waterway, the main inlet waterway, and the main outlet waterway;

[0023] With the first insertion part inserted into the cavity, the first baffle abuts against a portion of the dividing rib, and the waterway forming a turning cavity between the first baffle and two adjacent dividing ribs in contact with the first baffle.

[0024] Optionally, the cooling plate assembly also includes a second end plate, on which a water inlet channel and a water outlet channel are provided;

[0025] The cooling plate body is provided with a main water inlet channel and a main water outlet channel. Both the main water inlet channel and the main water outlet channel extend along a first direction. The main water inlet channel is connected to the first side water channel and the middle water channel, respectively. The main water outlet channel is connected to the second side water tank and the middle water channel, respectively.

[0026] The second end plate is connected to the other end of the cooling plate body along the first direction;

[0027] With the second end plate connected to the main body of the cooling plate, the water inlet channel is connected to the main water inlet channel, and the water outlet channel is connected to the main water outlet channel.

[0028] Optionally, the second end plate has a second main board and a second plug-in portion. The second plug-in portion has a central protrusion and two side protrusions. The central protrusion and one of the side protrusions are located on both sides of the water inlet channel, and the central protrusion and the other side protrusion are located on both sides of the water outlet channel.

[0029] The cooling plate body has a second inlet communicating with the cavity.

[0030] The second connector can be inserted into the cavity through the second socket, such that the central protrusion closes the central water channel on one side of the second socket, and the two side protrusions respectively close the first side water channel and the second side water channel on one side of the second socket. The water inlet channel is connected to the main water inlet channel, and the water outlet channel is connected to the main water outlet channel.

[0031] Optionally, the cavity is provided with a plurality of dividing ribs, each of the dividing ribs being arranged sequentially along the second direction, and each of the dividing ribs extending along the first direction;

[0032] Each of the aforementioned dividing ribs divides the cavity into the central waterway, the first side waterway, the second side waterway, the main inlet waterway, and the main outlet waterway;

[0033] With the second insertion part inserted into the cavity, the central protrusion abuts against a portion of the dividing rib, the side protrusion abuts against a portion of the dividing rib, the central channel forming a turning cavity between the central protrusion and two adjacent dividing ribs in contact with the central protrusion, and the side channel forming a turning cavity between the side protrusion and two adjacent dividing ribs in contact with the side protrusion.

[0034] Optionally, the first end plate and the main body of the cooling plate are fixed by laser wire filler welding, and the second end plate and the main body of the cooling plate are fixed by laser wire filler welding.

[0035] By adopting the above technical solution, this application has the following beneficial effects:

[0036] Generally, the temperature is highest in the middle of a battery module and lower on the outer edge. This cooling plate assembly has a central water channel and two side water channels. The two side water channels are located along the edges of the cooling plate assembly and are used to cool the outer edge of the battery module. The central water channel is located in the middle of the cooling plate assembly and is used to cool the middle of the battery module. The design of the first end plate connects the two side water channels in series. The water channel structure of this application's cooling plate assembly facilitates a balanced flow field and promotes even cooling of the battery module.

[0037] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0038] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0039] Figure 1 This illustration shows a three-dimensional structural diagram of the cooling plate assembly provided in an embodiment of this application;

[0040] Figure 2 An exploded view of the cooling plate assembly provided in an embodiment of this application is shown;

[0041] Figure 3 This diagram shows a structural schematic of the first end plate of the cooling plate assembly provided in an embodiment of this application.

[0042] Figure 4 This diagram shows a structural schematic of the second end plate of the cooling plate assembly provided in an embodiment of this application.

[0043] Figure 5 This diagram shows a cross-sectional view of the cooling plate assembly provided in an embodiment of this application.

[0044] Figure 6 This diagram illustrates the flow field of the cooling plate assembly provided in an embodiment of this application.

[0045] Figure 7 The diagram shows the flow field distribution within a cooling plate in the prior art.

[0046] In the diagram: 1. Cooling plate body; 11. Central water channel; 12. First side water channel; 13. Second side water channel; 14. Main water inlet channel; 15. Main water outlet channel; 2. First end plate; 21. First main plate; 22. First plug-in part; 221. First bottom plate; 221a. Inclined surface; 222. First baffle rib; 223. Second baffle rib; 2231. Notch part; 224. Third side water channel; 3. Second end plate; 31. Second main plate; 311. Water inlet; 312. Water outlet; 313. Water inlet channel; 314. Water outlet channel; 32. Second plug-in part; 321. Central protrusion; 322. Side protrusion; a. Dividing rib; b. First diverting rib; c. Second diverting rib; d. Third diverting rib.

[0047] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0049] In the description of this invention, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0050] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0051] Example 1

[0052] See Figures 1 to 6As shown, this application embodiment provides a cooling plate assembly, including a central water channel 11 and outer water channels. The central water channel 11 is located in the middle of the cooling plate assembly, and extends by reciprocating bends along a first direction. The central water channel 11 is generally distributed along a second direction on the cooling plate. In other words, the central water channel 11 can also be considered to extend along the second direction, and in the second direction, the central water channel 11 also reciprocates along the first direction. The central water channel 11 can be described differently from different viewing angles, but the structure of the central water channel 11 is consistent. The outer water channels are located at the edge of the cooling plate assembly, and extend along the periphery of the central water channel 11. The central water channel 11 and the outer water channels are two parallel water channels. Cooling water entering the cooling plate assembly is divided into two streams: the outer water channel and the middle water channel 11. Cooling water that has passed through the outer water channel will not enter the middle water channel 11, and cooling water that has entered the middle water channel 11 will not enter the outer water channel.

[0053] Generally, the temperature is highest in the middle of a battery module and lower on the outer edge. This cooling plate has a central water channel 11 and outer water channels. The outer water channels extend along the edge of the cooling plate assembly and are used to cool the outer edge of the battery module. The central water channels 11 are located in the middle of the cooling plate and are used to cool the middle of the battery module. (Comparison) Figure 6 and Figure 7 It is understood that the water channel structure of the cooling plate assembly in this application is more conducive to flow field balance and achieving battery module temperature balance compared to the transmission water channel structure.

[0054] The cooling plate assembly of this application can be designed according to the heat generation of the module. By changing the width of the water channel and adjusting the heat exchange area of ​​the middle water channel 11 and the outer water channel, the flow field can be adjusted, and the cells of different battery modules can be cooled in a balanced manner.

[0055] In one possible implementation, see Figure 5 As shown, the outer water channel includes a first side water channel 12 and a second side water channel 13. The first side water channel 12 and the second side water channel 13 are respectively disposed on both sides of the cooling plate assembly along the second direction. The first side water channel 12 and the second side water channel 13 both extend along the first direction and are connected to each other.

[0056] The first direction and the second direction are perpendicular, and they can be the length direction and the width direction of the cooling plate assembly, respectively. In this embodiment, two side water channels are respectively provided on both sides of the central water channel 11. The two side water channels are connected, and the coolant entering the side water channels directly exchanges heat with the outer ring of the battery module. The coolant does not exchange heat with the inner ring of the battery module before exchanging heat with the outer ring of the battery module, which results in higher cooling efficiency and is conducive to the temperature balance of the battery module.

[0057] In one possible implementation, see Figure 5 As shown, the first side water channel 12 and the second side water channel 13 both extend and bend back and forth along the first direction to form multiple sub-channels extending along the first direction. Each sub-channel is arranged sequentially along the second direction. The number and width of each sub-channel of the side water channel can be designed according to the heat generation of the module to achieve the effect of balanced cooling of the battery module.

[0058] See Figure 5 As shown, the outer water channel further includes a third side water channel 224, which is located at the end of the cooling plate assembly along the first direction. The third side water channel 224 connects to the first side water channel 12 and the second side water channel 13. The third side water channel 224 extends along the second direction of the cooling plate assembly and is located at the end of the middle water channel 11 along the first direction.

[0059] The first side channel 12 of the outer channel has multiple parallel first channels (i.e., sub-channels mentioned above), each first channel being arranged sequentially along a second direction and extending along a first direction, with adjacent first channels connected. The second side channel 13 of the outer channel has multiple parallel second channels (i.e., sub-channels mentioned above), each second channel being arranged sequentially along a second direction and extending along a first direction, with adjacent second channels connected. The third side channel 224 connects the outermost first channel of the first side channel 12 and the outermost second channel of the second side channel 13. A third diversion rib d can be provided in the middle of the central channel 11, dividing the central channel 11 into two branch channels, thereby facilitating a balanced flow field.

[0060] The cooling plate assembly includes a main water inlet 14, and the first side water channel 12 and the central water channel 11 are both connected to the main water inlet 14. The first side water channel 12 and the central water channel 11 are connected in parallel to the main water inlet 14.

[0061] The main water inlet channel 14 is located between the first side waterway 12 and the middle waterway 11. The main water inlet channel 14 extends along a first direction. The first end of the main water inlet channel 14 is connected to the water inlet, and the last end of the main water inlet channel 14 is connected to the first side waterway and the middle waterway 11 respectively.

[0062] The main inlet channel 14 is provided with a first diversion rib b, which divides the main inlet channel 14 into two inlet sub-channels. The two inlet sub-channels are mainly connected to the first side channel 12 and the central channel 11, respectively. The first diversion rib b serves to divert the flow and facilitate a balanced flow.

[0063] See Figure 5 As shown, the cooling plate assembly includes a main water outlet 15, and the second side water channel 13 and the central water channel 11 are both connected to the main water outlet 15. In this way, the outer water channel and the central water channel 11 are connected in parallel between the main water inlet 14 and the main water outlet 15 of the cooling plate assembly.

[0064] The main water outlet 15 is located between the second side water channel 13 and the central water channel 11, and extends along a first direction. The first end of the main water outlet 15 connects to the first side water channel and the central water channel 11, respectively, and the last end of the main water outlet 15 connects to the water outlet. A second diversion rib c is provided in the middle of the main water outlet 15 to divide the main water outlet 15 into two diversion channels, so as to facilitate the main diversion of the cooling water discharged from the central water channel 11 and the second side water channel 13 after heat exchange, thereby facilitating the flow field balance.

[0065] Example 2

[0066] See Figures 1 to 7 As shown, Embodiment 2 of this application provides a further detailed description of the cooling plate assembly of Embodiment 1. The cooling plate assembly includes a cooling plate body 1 and a first end plate 2. The cooling plate body 1 has a central water channel 11, a first side water channel 12, and a second side water channel 13. The first side water channel 12 and the second side water channel 13 are respectively disposed on both sides of the central water channel 11 along a second direction. The first end plate 2 is connected to one end of the cooling plate body 1 along a first direction, and a third side water channel 224 is provided on the first end plate 2, the third side water channel 224 connecting the first side water channel 12 and the second side water channel 13.

[0067] The first end plate 2 provides a third side water channel 224 to the cooling plate body 1 to connect the first side water channel 12 and the second side water channel 13. The first end plate 2 and the cooling plate body 1 are detachably connected. The outer water channels are respectively arranged on the cooling plate body 1 and the first end plate 2, which simplifies the water channel structure in the cooling plate body 1, reduces the production process, and helps to improve the yield.

[0068] See Figure 1 , Figure 3 and Figure 5As shown, the cooling plate body 1 has a cavity and a first insertion port communicating with the cavity. The cavity is divided by multiple dividing ribs a to form the central water channel 11, the first side water channel 12, and the second side water channel 13. Each dividing rib a extends along a first direction, which can be the length direction of the cooling plate body 1, and the second direction is the width direction of the cooling plate body 1. The first end plate 2 has a first main plate 21 and a first insertion part 22, which are connected. The first insertion part 22 forms the third side water channel 224. The first insertion part 22 can be inserted into the cavity through the first insertion port, allowing the third side water channel 224 to communicate with the first side water channel 12 and the second side water channel 13. The first main plate 21 closes the first insertion port. When the first insertion part 22 is inserted into the first insertion port, the first main plate 21 abuts against the first insertion port and is located outside the cavity. The first main plate 21 has connecting holes for connection and fixation.

[0069] See Figure 1 , Figure 3 and Figure 5 As shown, the first insertion part 22 has a first base plate 221, a first baffle 222, and a second baffle 223. Both the first baffle 222 and the second baffle 223 are connected to the first base plate 221, forming the third side channel 224 between them. The second baffle 223 has two notches 2231. When the first insertion part 22 can be inserted into the cavity, the two notches 2231 respectively connect to the first side channel 12 and the second side channel 13. The two notches 2231 can be the two ends of the second baffle 223. The second baffle 223 can isolate the central channel 11 and the third side channel 224.

[0070] The first base plate 221 of the first insertion portion 22 of the first end plate 2 has an inclined surface 221a corresponding to the notch portion 2231. The inclined surface 221a makes the two sides of the first base plate 221 have sharp angles, which facilitates the smooth insertion of the first insertion portion 22 into the first socket. In addition, the inclined surface 221a makes the cross-section of the flow channel in the corresponding part gradually change rather than abruptly, which plays a buffering role and reduces the water flow resistance.

[0071] In one possible implementation, see Figure 5As shown, the cooling plate body 1 has a main water inlet channel 14 and a main water outlet channel 15, both extending along a first direction. The main water inlet channel 14 connects to the first side water channel 12 and the central water channel 11, respectively, and the main water outlet channel 15 connects to the second side water channel 13 and the central water channel 11, respectively. The central water channel 11, the main water inlet channel 14, and the main water outlet channel 15 are all open at one end of the first insertion port. When the first insertion part 22 is inserted into the cavity, the second baffle 223 can close the open ends of the central water channel 11, the main water inlet channel 14, and the main water outlet channel 15 located on one side of the first insertion port, so that the central water channel 11, the main water inlet channel, the main water outlet channel 15, and the outer water channel form a complete water channel structure, and the cooling water in the central water channel 11, the main water inlet channel 14, and the main water outlet channel 15 will not directly flow into the third side water channel 224.

[0072] In one possible implementation, the cavity is provided with a plurality of dividing ribs a, each of the dividing ribs a being arranged sequentially along a second direction and each of the dividing ribs a extending along a first direction. Each of the dividing ribs a divides the cavity into the central waterway 11, the first side waterway 12, the second side waterway 13, the main waterway 14, and the main waterway 15. When the first insertion part 22 is inserted into the cavity, the first baffle rib 222 abuts against a portion of the dividing ribs a, and a turning cavity of the waterway is formed between the first baffle rib 222 and two adjacent dividing ribs a in contact with the first baffle rib 222.

[0073] In one possible implementation, see Figure 1 , Figure 4 and Figure 5 As shown, the cooling plate assembly also includes a second end plate 3, on which a water inlet channel 313 and a water outlet channel 314 are provided. The water inlet channel 313 is connected to a water inlet nozzle 311, and the water outlet channel 314 is connected to a water outlet nozzle 312. The cooling plate body 1 has a main water inlet channel 14 and a main water outlet channel 15, both extending along a first direction. The main water inlet channel 14 connects to the first side water channel 12 and the central water channel 11, respectively, and the main water outlet channel 15 connects to the second side water tank and the central water channel 11, respectively. The second end plate 3 is connected to the other end of the cooling plate body 1 along the first direction. When the second end plate 3 is connected to the cooling plate body 1, the water inlet channel 313 connects to the main water inlet channel 14, and the water outlet channel 314 connects to the main water outlet channel 15.

[0074] The second end plate 3 is used to allow water to enter the cooling plate body 1 and to discharge water from the cooling plate body 1. The second end plate 3 and the cooling plate body 1 are detachably connected. Setting the water inlet and outlet structures of the cooling plate assembly on the second end plate 3 simplifies the structure of the cooling plate body 1, reduces production process requirements, and helps to improve the yield rate.

[0075] In one possible implementation, the second end plate 3 has a second main plate 31 and a second plug-in portion 32. The second plug-in portion 32 has a central protrusion 321 and two side protrusions 322. The central protrusion 321 and one of the side protrusions 322 are located on both sides of the water inlet channel 313, and the central protrusion 321 and the other side protrusion 322 are located on both sides of the water outlet channel 314. The cooling plate body 1 has a second socket communicating with the cavity. The second plug-in portion 32 can be inserted into the cavity through the second socket, such that the central protrusion 321 closes the central water channel 11 located on one side of the second socket, and the two side protrusions 322 respectively close the first side water channel 12 and the second side water channel 13 located on one side of the second socket. The water inlet channel 313 communicates with the main water inlet channel 14, and the water outlet channel 314 communicates with the main water outlet channel 15.

[0076] It should be noted that the term "closed" in this application does not mean that the corresponding water channel is blocked at the end of the cooling plate body, but rather that the corresponding water channel is enclosed at the end of the cooling plate body to prevent the coolant in the water channel from leaking out of the end of the cooling plate body and unable to continue flowing, so that the coolant in the water channel can smoothly turn and flow at the end of the cooling plate body.

[0077] The cavity is provided with multiple dividing ribs a, each divided rib a is arranged sequentially along a second direction, and each divided rib a extends along a first direction. Each dividing rib a divides the cavity into a central water channel 11, a first side water channel 12, a second side water channel 13, a main inlet water channel 14, and a main outlet water channel 15. With the second insertion part 32 inserted into the cavity, the central protrusion 321 abuts against a portion of the dividing rib a, and the side protrusion 322 abuts against a portion of the dividing rib a. A turning cavity for the central water channel 11 is formed between the central protrusion 321 and two adjacent dividing ribs a in contact with it, and a turning cavity for the side water channel is formed between the side protrusion 322 and two adjacent dividing ribs a in contact with it. The formation of the turning cavities facilitates the smooth turning and flow of the coolant.

[0078] The first end plate 2 and the cooling plate body 1 are fixed together by laser wire filler welding, and the second end plate 3 and the cooling plate body 1 are fixed together by laser wire filler welding. This application overcomes the shortcomings of the existing process by using laser wire filler welding. The laser welded joint does not contact the cooling plate, there is no downward pressure, and the inlet and outlet welds are not crushed during the welding process. Laser wire filler welding has high tolerance for the precision of the cooling plate.

[0079] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A cooling plate assembly, characterized by include: The cooling plate body has a cavity and a first inlet communicating with the cavity. Multiple dividing ribs are arranged within the cavity, each dividing rib being sequentially arranged along a second direction and extending along a first direction. Each dividing rib divides the cavity into a central water channel, a first side water channel, a second side water channel, a main inlet water channel, and a main outlet water channel. The first side water channel and the second side water channel are located on opposite sides of the central water channel along the second direction. The main inlet water channel and the main outlet water channel both extend along the first direction. The main inlet water channel connects to the first side water channel and the central water channel, respectively. The main outlet water channel connects to the second side water channel and the central water channel, respectively. The central water channel, the main inlet water channel, and the main outlet water channel are all open at one end of the first inlet. A first end plate is connected to one end of the cooling plate body along a first direction. The first end plate has a first main plate and a first insertion part. The first insertion part has a first bottom plate, a first baffle rib, and a second baffle rib. The first baffle rib and the second baffle rib are both connected to the first bottom plate. A third side water channel is formed between the first baffle rib and the second baffle rib. Two notches are provided on the second baffle rib. When the first insertion part is inserted into the cavity, the second baffle rib can close the opening of the central water channel, the main water inlet channel, and the main water outlet channel located on one side of the first insertion port. The two notches are respectively connected to the first side water channel and the second side water channel. The first baffle rib abuts against a portion of the dividing rib. A turning cavity of the water channel is formed between the first baffle rib and two adjacent dividing ribs in contact with the first baffle rib. An inclined surface is provided on the first bottom plate corresponding to the position of the notch.

2. The cooling plate assembly of claim 1, wherein, It also includes a second end plate, on which an inlet channel and an outlet channel are provided; The cooling plate body is provided with a main water inlet channel and a main water outlet channel. Both the main water inlet channel and the main water outlet channel extend along a first direction. The main water inlet channel is connected to the first side water channel and the middle water channel, respectively. The main water outlet channel is connected to the second side water channel and the middle water channel, respectively. The second end plate is connected to the other end of the cooling plate body along the first direction; With the second end plate connected to the main body of the cooling plate, the water inlet channel is connected to the main water inlet channel, and the water outlet channel is connected to the main water outlet channel.

3. The cooling plate assembly of claim 2, wherein, The second end plate has a second main board and a second plug-in portion. The second plug-in portion has a central protrusion and two side protrusions. The central protrusion and one of the side protrusions are located on both sides of the water inlet channel, and the central protrusion and the other side protrusion are located on both sides of the water outlet channel. The cooling plate body has a second insertion port that communicates with the cavity; The second connector can be inserted into the cavity through the second socket, such that the central protrusion closes the central water channel on one side of the second socket, and the two side protrusions respectively close the first side water channel and the second side water channel on one side of the second socket. The water inlet channel is connected to the main water inlet channel, and the water outlet channel is connected to the main water outlet channel.

4. The cooling plate assembly of claim 3, wherein, With the second insertion part inserted into the cavity, the central protrusion abuts against a portion of the dividing rib, the side protrusion abuts against a portion of the dividing rib, the central channel forming a turning cavity between the central protrusion and two adjacent dividing ribs in contact with the central protrusion, and the side channel forming a turning cavity between the side protrusion and two adjacent dividing ribs in contact with the side protrusion.

5. The cooling panel assembly of claim 2, wherein, The first end plate and the main body of the cooling plate are fixed together by laser wire filling welding, and the second end plate and the main body of the cooling plate are fixed together by laser wire filling welding.

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