CN115714213A - Cooling plate subassembly - Google Patents

Abstract

The invention discloses a cooling plate assembly, which includes a cooling plate main body and a first end plate. The main body of the cooling plate has a middle water channel, a first side water channel and a second side water channel, and the first side water channel and the second side water channel are respectively arranged on two sides of the middle water channel along the second direction. The first end plate is connected to one end of the main body of the cooling plate along the first direction, and a third side water channel is arranged on the first end plate, and the third side water channel communicates with the first side water channel and the second side water channel. Generally, the middle temperature of the battery module is the highest, and the temperature of the outer ring is lower. This cooling plate assembly has a middle water channel and two side water channels. For cooling, the middle water channel is distributed in the middle of the cooling plate assembly for cooling the middle of the battery module. The design of the first end plate connects the two side water channels in series. The structural setting of the water channel in the cooling plate assembly of the present application is conducive to the balance of the flow field and the balanced cooling of the battery module.

Description

A cooling plate assembly

technical field

The present application belongs to the technical field of battery module cooling, and in particular relates to a cooling plate assembly.

Background technique

The cooling plate is usually in contact with the battery module for heat exchange with the battery module, cooling the battery cells of the battery module, and preventing the battery module from overheating, resulting in poor working conditions of the battery module.

As shown in FIG. 7 , the existing cooling plate usually has only one water channel, and the water channel extends in multiple reciprocating bends. During the extension process of the water channel, multiple sub-flow channels can be divided side by side, and the sub-flow channels are arranged adjacent to each other. The overall path of the water channel is M-shaped, the structure design of the water channel is single, and the flow field is unbalanced. Generally, the middle temperature of the battery module is the highest, and the outer ring temperature is lower. If the battery module is cooled by the above-mentioned cooling plate, it is easy to have the problem of unbalanced regulation of the temperature of the cells of the battery module by the cooling plate due to the unbalanced flow field in the cooling plate.

In view of this, the present invention is proposed.

Contents of the invention

The invention provides a cooling plate assembly.

This application provides the following technical solutions:

A cooling plate assembly comprising:

The main body of the cooling plate, the main body of the cooling plate has a middle water channel, a first side water channel and a second side water channel, and the first side water channel and the second side water channel are respectively arranged on the middle water channel along the second direction both sides of

A first end plate, the first end plate is connected to one end of the main body of the cooling plate along the first direction, a third side water channel is arranged on the first end plate, and the third side water channel communicates with the first end plate One lateral channel and a second lateral channel.

Optionally, the main body of the cooling plate has a cavity and a first socket connected to the cavity, and the cavity is divided by a plurality of dividing ribs to form the middle water channel, the first side water channel and the second side waterway;

The first end plate has a first main board and a first plug-in part, the first main board is connected to the first plug-in part, and the third side water channel is formed on the first plug-in part;

The first socket part can be inserted into the cavity through the first socket, so that the third side water channel communicates with the first side water channel and the second side water channel, and the first main board Close the first socket.

Optionally, the first socket has a first bottom plate, a first rib and a second rib;

Both the first rib and the second rib are connected to the first bottom plate, and the third side channel is formed between the first rib and the second rib;

Two notches are set on the second retaining rib;

In the state where the first insertion part can be inserted into the cavity, the two notches communicate with the first side water channel and the second side water channel respectively.

Optionally, the first bottom plate is provided with an inclined surface at a position corresponding to the notch.

Optionally, the main body of the cooling plate has a total water inlet and a total water outlet, both of which extend along the first direction, and the total water inlet communicates with the first side water channel and the middle part respectively. A waterway, the main waterway respectively communicates with the second side water tank and the middle waterway;

One end of the middle waterway, the main water inlet and the main water outlet located at the first socket is open;

When the first socket part is inserted into the cavity, the second retaining rib can close the openings of the central water channel, the main water inlet and the main water outlet on the side of the first socket.

Optionally, a plurality of dividing ribs are arranged in the cavity, each of the dividing ribs is arranged in sequence along the second direction, and each of the dividing ribs is extended along the first direction;

Each of the dividing ribs divides the cavity to form the middle waterway, the first side waterway, the second side waterway, the main water inlet and the main water outlet;

In the state where the first insertion part is inserted into the cavity, the first rib abuts against part of the dividing rib, and the first rib and the adjacent rib in contact with the first rib The turning chamber of the channel formed between two dividing ribs.

Optionally, the cooling plate assembly further includes a second end plate, and the second end plate is provided with a water inlet channel and a water outlet channel;

The main body of the cooling plate is provided with a general water inlet and a general water outlet, both of which extend along the first direction, and the general water inlet communicates with the first side waterway and the middle waterway respectively, The main water outlet is respectively connected to the second side water tank and the middle water channel;

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

When the second end plate is connected to the main body of the cooling plate, the water inlet channel communicates with the main water inlet, and the water outlet channel communicates with the main water outlet.

Optionally, the second end plate has a second main board and a second plug-in part, the second plug-in part has a middle raised bar and two side raised bars, the middle raised bar and one side The upper convex strip is located on both sides of the water inlet channel, and the middle convex strip and the other side convex strip are located on both sides of the water outlet channel;

The main body of the cooling plate has a second socket communicating with the cavity

The second plug-in part can be inserted into the cavity through the second socket, so that the middle protruding strip closes the middle water channel and is located on one side of the second socket, and the two side protruding strips The bars respectively close the first side water channel and the second side water channel on one side of the second socket, the water inlet channel communicates with the general water inlet channel, and the water outlet channel communicates with the general water outlet channel.

Optionally, a plurality of dividing ribs are arranged in the cavity, each of the dividing ribs is arranged in sequence along the second direction, and each of the dividing ribs is extended along the first direction;

Each of the dividing ribs divides the cavity to form the middle waterway, the first side waterway, the second side waterway, the main water inlet and the main water outlet;

In the state where the second insertion part is inserted into the cavity, the middle protruding line abuts against part of the dividing rib, the side protruding line abuts against part of the dividing rib, and the central protruding line The turning cavity of the middle waterway is formed between the bar and the adjacent two dividing ribs in contact with the middle raised bar, and the space between the side raised bar and the adjacent two dividing ribs in contact with the side raised bar The turning chamber of the side channel formed.

Optionally, the first end plate and the main body of the cooling plate are fixed by laser wire-filled welding, and the second end plate and the main body of the cooling plate are fixed by laser wire-filled welding.

By adopting the above technical solution, the present application has the following beneficial effects:

Generally, the middle temperature of the battery module is the highest, and the temperature of the outer ring is lower. This cooling plate assembly has a middle water channel and two side water channels. For cooling, the middle water channel is distributed in the middle of the cooling plate assembly for cooling the middle of the battery module. The design of the first end plate connects the two side water channels in series. The structural setting of the water channel in the cooling plate assembly of the present application is conducive to the balance of the flow field and the balanced cooling of the battery module.

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Description of drawings

The accompanying drawings, as a part of this application, are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute improper limitations to the present invention. Apparently, the drawings in the following description are only some embodiments, and those skilled in the art can also obtain other drawings according to these drawings without creative efforts. In the attached picture:

FIG. 1 shows a schematic diagram of a three-dimensional structure of a cooling plate assembly provided in an embodiment of the present application;

Figure 2 shows an exploded view of the cooling plate assembly provided by the embodiment of the present application;

Fig. 3 shows a schematic structural view of the first end plate of the cooling plate assembly provided by the embodiment of the present application;

Fig. 4 shows a schematic structural view of the second end plate of the cooling plate assembly provided by the embodiment of the present application;

FIG. 5 shows a schematic cross-sectional structural view of a cooling plate assembly provided by an embodiment of the present application;

Fig. 6 shows a schematic diagram of the flow field of the cooling plate assembly provided by the embodiment of the present application;

Fig. 7 shows the flow field distribution diagram in the cooling plate in the prior art.

In the figure: 1. The main body of the cooling plate; 11. The middle water channel; 12. The first side water channel; 13. The second side water channel; 14. The main water inlet; 15. The main water outlet; 2. The first end plate; 21 , the first main board; 22, the first socket part; 221, the first bottom plate; 221a, the inclined surface; 222, the first rib; 223, the second rib; 2231, the notch; 224, the third side waterway 3, the second end plate; 31, the second main board; 311, the water inlet; 312, the water outlet; 313, the water inlet channel; 314, the water outlet channel; 32, the second plug-in part; 322. Side convex strips; a, split ribs; b, first diversion ribs; c, second diversion ribs; d, third diversion ribs.

It should be noted that these drawings and text descriptions are not intended to limit the concept scope of the present invention in any way, but illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention , but not to limit the scope of the present invention.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer" and the like are based on the orientation or positional relationship shown in the accompanying drawings, and are only for It is convenient to describe the present invention and simplify the description, but does not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral Ground connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Embodiment one

Referring to FIGS. 1 to 6 , the embodiment of the present application provides a cooling plate assembly, including: a central water channel 11 and an outer water channel. The middle water channel 11 is located in the middle of the cooling plate assembly. The middle water channel 11 bends and extends along the first direction, and the middle water channel 11 is generally distributed along the second direction on the cooling plate. In other words, the middle waterway 11 can also be considered as extending along the second direction, and along the second direction, the middle waterway 11 also bends back and forth along the first direction. The middle waterway 11 can be described differently from different viewing angles, but the structure of the middle waterway 11 to be expressed is unified. The outer water channel is located at the edge of the cooling plate assembly, and the outer water channel extends along the peripheral side of the middle water channel 11 . The central waterway 11 and the outer waterway are two waterways connected in parallel. The cooling water entering the cooling plate assembly enters the outer water channel and the middle water channel 11 respectively, the cooling water passing through the outer water channel will not enter the middle water channel 11 again, and the cooling water entering the middle water channel 11 will not enter the outer water channel again.

Generally, the middle temperature of the battery module is the highest, and the temperature of the outer ring is lower. This cooling plate has a middle water channel 11 and an outer water channel. The outer water channel extends along the edge of the cooling plate assembly and is used to cool the outer ring of the battery module. The middle water channel 11 Distributed in the middle of the cooling plate, used to cool the middle of the battery module. Comparing Fig. 6 and Fig. 7, it can be known that the structural setting of the water channel in the cooling plate assembly of the present application is more conducive to the balance of the flow field and the temperature balance of the battery module compared with the structure of the transmission water channel.

The cooling plate assembly of the present application can be designed according to the heating conditions of the modules. By changing the width of the water channel, adjusting the heat exchange area of the middle water channel 11 and the outer water channel to adjust the flow field, the cells of different battery modules can be cooled in a balanced manner.

In a possible implementation, as shown in FIG. 5 , the outer waterway includes a first side waterway 12 and a second side waterway 13 , and the first side waterway 12 and the second side waterway 13 are separately arranged. 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 the first side water channel 12 and the second side water channel The two side water channels 13 are connected.

The first direction and the second direction are perpendicular to each other, and the two directions may be respectively the length direction and the width direction of the cooling plate assembly. In the embodiment of the present application, two side waterways are respectively provided on both sides of the middle waterway 11, and the two side waterways are connected. The cooling liquid entering the side waterways directly exchanges heat with the outer ring of the battery module. The cooling liquid is not After exchanging heat with the inner ring of the battery module and then exchanging heat with the outer ring of the battery module, the cooling efficiency is higher, which is beneficial to the temperature balance of the battery module.

In a possible implementation, as shown in FIG. 5 , both the first side waterway 12 and the second side waterway 13 are bent and extended along the first direction to form a plurality of waterways extending along the first direction. Each sub-channel is arranged in sequence along the second direction, and 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 a balanced cooling effect on the battery module.

Referring to FIG. 5 , the outer water channel further includes a third side water channel 224 , and the third side water channel 224 is located at the end of the cooling plate assembly along the first direction. The third side waterway 224 communicates with the first side waterway 12 and the second side waterway 13 respectively. The third side channel 224 extends along the second direction of the cooling plate assembly and is located at the end of the central channel 11 along the first direction.

The first side waterway 12 of the outer waterway has a plurality of parallel first waterways (that is, the above-mentioned sub-runners), and each of the first waterways is arranged in sequence along the second direction, and each of the first waterways is arranged along the second direction. Extending in one direction, two adjacent first waterways are connected. The second side waterway 13 of the outer waterway has a plurality of parallel second waterways (that is, the above-mentioned sub-runners), and each of the second waterways is arranged in sequence along the second direction, and each of the second waterways is arranged along the second direction. Extending in one direction, two adjacent second waterways are connected. in. The third side waterway 224 is respectively connected to the outermost first waterway of the first side waterway 12 and the outermost second waterway of the second side waterway 13 . The middle part of the middle waterway 11 can be provided with a third diversion rib d, which divides the middle waterway 11 to form two water diversion channels, so as to balance the flow field.

The cooling plate assembly includes a main water inlet 14 , and both the first side water channel 12 and the middle water channel 11 communicate with the main water inlet 14 . The first side waterway 12 and the middle waterway 11 are connected in parallel to the main waterway 14 .

The total water inlet 14 is located between the first side waterway 12 and the middle waterway 11, the total water inlet 14 extends along the first direction, and the head end of the total water inlet 14 is connected to the water inlet, so The ends of the general water inlet 14 communicate with the first side waterway and the middle waterway 11 respectively.

The main water inlet 14 is provided with a first distribution rib b, and the first distribution rib b divides the main water inlet 14 to form two water inlet and water channels. The two inlet and water channels mainly communicate with the first side water channel 12 and the middle water channel 11 respectively. The setting of the first diversion rib b plays the role of diversion and flow balance.

As shown in FIG. 5 , the cooling plate assembly includes a main water outlet 15 , and both the second side water channel 13 and the middle water channel 11 communicate with the main water outlet 15 . In this way, it is realized that the outer water channel and the middle water channel 11 are connected in parallel between the main water inlet 14 and the main water outlet 15 of the cooling plate assembly.

The main water outlet 15 is located between the second side water channel 13 and the middle water channel 11 , and the main water outlet 15 extends along a first direction. The head end of the main water outlet 15 communicates with the first side water channel and the middle water channel 11 respectively, and the end of the main water outlet 15 communicates with the water outlet. A second diversion rib c is arranged in the middle of the main water channel 15 to divide the main water channel 15 to form two branch channels, so as to facilitate the main drainage of the heat-exchanged cooling water discharged from the central water channel 11 and the second side water channel 13 respectively, thereby Conducive to flow field balance.

Embodiment two

Referring to FIG. 1 to FIG. 7 , Embodiment 2 of the present application further describes the cooling plate assembly of Embodiment 1 in detail. The cooling plate assembly includes a cooling plate main body 1 and a first end plate 2, the cooling plate main body 1 has a middle 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 The second side waterway 13 is separately arranged on two sides of the middle waterway 11 along the second direction. The first end plate 2 is connected to one end of the cooling plate main body 1 along the first direction, and a third side water channel 224 is arranged on the first end plate 2, and the third side water channel 224 communicates with the first One side water channel 12 and the second side water channel 13 .

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

Referring to Fig. 1, Fig. 3 and Fig. 5, the cooling plate main body 1 has a cavity and a first socket communicating with the cavity, and the cavity is divided by a plurality of dividing ribs a to form the middle water channel 11, the first One side water channel 12 and the second side water channel 13 . Each dividing rib a extends along a first direction, the first direction may be the length direction of the cooling plate main body 1 , and the second direction is the width direction of the cooling plate main body 1 . The first end plate 2 has a first main board 21 and a first plug-in portion 22, the first main board 21 is connected to the first plug-in portion 22, and the first plug-in portion 22 is formed with the Third side waterway 224 . The first socket part 22 can be inserted into the cavity through the first socket, so that the third side waterway 224 communicates with the first side waterway 12 and the second side waterway 13, the The first main board 21 closes the first socket. When the first socket part 22 is inserted into the first socket, the first main board 21 abuts against the first socket and is located outside the cavity. Connection holes for connection and fixing are provided on the first main board 21 .

Referring to FIG. 1 , FIG. 3 and FIG. 5 , the first insertion part 22 has a first bottom plate 221 , a first rib 222 and a second rib 223 . Both the first rib 222 and the second rib 223 are connected to the first bottom plate 221 , and the third side channel 224 is formed between the first rib 222 and the second rib 223 . Two notches 2231 are disposed on the second retaining rib 223 . When the first socket part 22 can be inserted into the cavity, the two notches 2231 communicate with the first side water channel 12 and the second side water channel 13 respectively. Wherein, the two notches 2231 may be two ends of the second retaining rib 223 . The second retaining rib 223 can isolate the central waterway 11 from the third side waterway 224 .

The first bottom plate 221 of the first insertion portion 22 of the first end plate 2 is provided with an inclined surface 221 a at a position corresponding to the notch portion 2231 . The setting of the inclined surface 221 a makes the two sides of the first bottom plate 221 form sharp angles, which facilitates the smooth insertion of the first insertion part 22 from the first socket. Moreover, the setting of the inclined surface 221a makes the cross-section of the flow channel at the corresponding position gradually change instead of abruptly, which plays a buffering role and reduces the water flow resistance.

In a possible implementation, as shown in FIG. 5 , the cooling plate main body 1 has a total water inlet 14 and a total water outlet 15 , and the total water inlet 14 and the total water outlet 15 both extend along a first direction, The main water inlet 14 communicates with the first side waterway 12 and the middle waterway 11 respectively, and the main water outlet 15 communicates with the second side waterway 13 and the middle waterway 11 respectively. One end of the central waterway 11 , the main water inlet 14 and the main water outlet 15 located at the first socket is all open. When the first socket part 22 is inserted into the cavity, the second retaining rib 223 can close the middle water channel 11, the main water inlet 14 and the main water outlet 15 are located on the side of the first socket. The opening of the central waterway 11, the main water inlet, the main water outlet 15 and the outer waterway form a complete waterway structure, and the cooling water in the middle waterway 11, the main water inlet 14 and the main water outlet 15 will not directly flow into the first Three side waterways 224 .

In a possible implementation, the cavity is provided with a plurality of dividing ribs a, each of the dividing ribs a is arranged in sequence along the second direction, each of the dividing ribs a is extended along the first direction, each The dividing rib a divides the cavity to form the middle water channel 11, the first side water channel 12, the second side water channel 13, the main water inlet 14 and the main water outlet 15. 22 inserted into the cavity, the first retaining rib 222 is against part of the partition rib a, and the first retaining rib 222 and the adjacent two partitions in contact with the first retaining rib 222 The diversion cavity of the water channel formed between the tendons.

In a possible implementation, as shown in FIG. 1 , FIG. 4 and FIG. 5 , the cooling plate assembly further includes a second end plate 3 , and a water inlet channel 313 and a water outlet channel 314 are arranged on the second end plate 3 . The water inlet channel 313 is connected to the water inlet nozzle 311 , and the water outlet channel 314 is connected to the water outlet nozzle 312 . The cooling plate main body 1 is provided with a main water inlet 14 and a main water outlet 15, both of which extend along the first direction, and the main water inlet 14 respectively communicates with the first side The main water channel 12 and the middle water channel 11, and the main water channel 15 communicates with the second side water tank and the middle water channel 11 respectively. The second end plate 3 is connected to the other end of the cooling plate main body 1 along the first direction. When the second end plate 3 is connected to the cooling plate main body 1 , 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 .

The second end plate 3 is used for entering water into the cooling plate main body 1 and discharging the water inside the cooling plate main body 1 . The second end plate 3 is detachably connected to the cooling plate main body 1, and setting the water inlet structure and the water outlet structure of the cooling plate assembly on the second end plate 3 simplifies the structure of the cooling plate main body 1, reduces the production process requirements, and has Helps improve yield.

In a possible implementation, the second end plate 3 has a second main board 31 and a second insertion portion 32, and the second insertion portion 32 has a central raised strip 321 and two side raised strips 322 , the middle raised bar 321 and one side raised bar 322 are located on both sides of the water inlet channel 313 , the middle raised bar 321 and the other side raised bar 322 are located on the side of the water outlet channel 314 On both sides, the cooling plate main body 1 has a second socket communicating with the cavity. The second insertion part 32 can be inserted into the cavity through the second socket, so that the middle raised strip 321 closes the middle water channel 11 and is located on one side of the second socket. The side protrusions 322 respectively close the first side waterway 12 and the second side waterway 13 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 total water outlet 15.

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 so that the water channel is blocked, but that the corresponding water channel is enclosed and closed at the end of the cooling plate body. Prevent the coolant in the water channel from leaking from the end of the cooling plate body and cannot continue to flow, so that the coolant in the water channel can smoothly turn to flow at the end of the cooling plate body.

A plurality of dividing ribs a are arranged in the cavity, each of the dividing ribs a is arranged in sequence along the second direction, and each of the dividing ribs a is extended along the first direction. Each of the dividing ribs a divides the cavity to form the middle water channel 11 , the first side water channel 12 , the second side water channel 13 , the main water inlet 14 and the main water outlet 15 . In the state where the second insertion part 32 is inserted into the cavity, the middle convex strip 321 abuts against part of the dividing rib a, and the side convex strip 322 abuts against part of the dividing rib a. , the turning cavity of the middle water channel 11 is formed between the middle raised line 321 and the adjacent two dividing ribs a in contact with the middle raised line 321, and the side raised line 322 and the side raised line 322 are in contact with each other. The diversion cavity of the side water channel is formed between two adjacent division ribs a in contact. The formation of the steering cavity is conducive to the smooth steering flow of the coolant.

The first end plate 2 and the cooling plate main body 1 are fixed by laser wire-filling welding, and the second end plate 3 and the cooling plate main body 1 are fixed by laser wire-filling welding. This application overcomes the shortcomings of the existing technology and adopts laser wire-filled welding. The laser welding joint does not contact the cooling plate and has no downforce. During the welding process, the weld bead at the inlet and outlet is prevented from collapsing, and the laser-filled wire welding is used to tolerate the accuracy of the cooling plate. high degree.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with the technology of this patent Without departing from the scope of the technical solution of the present invention, personnel can use the technical content of the above prompts to make some changes or modify them into equivalent embodiments with equivalent changes, but as long as they do not depart from the technical solution of the present invention, the Technical Essence Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the solutions of the present invention.

Claims (10)

1. A cooling plate assembly, characterized in that, comprising: The main body of the cooling plate, the main body of the cooling plate has a middle water channel, a first side water channel and a second side water channel, and the first side water channel and the second side water channel are respectively arranged on the middle water channel along the second direction both sides of A first end plate, the first end plate is connected to one end of the main body of the cooling plate along the first direction, a third side water channel is arranged on the first end plate, and the third side water channel communicates with the first end plate One lateral channel and a second lateral channel. 2. The cooling plate assembly according to claim 1, wherein the main body of the cooling plate has a cavity and a first socket communicating with the cavity, and the cavity is divided to form the the central channel, the first lateral channel and the second lateral channel; The first end plate has a first main board and a first plug-in part, the first main board is connected to the first plug-in part, and the third side water channel is formed on the first plug-in part; The first socket part can be inserted into the cavity through the first socket, so that the third side water channel communicates with the first side water channel and the second side water channel, and the first main board Close the first socket. 3. The cooling plate assembly according to claim 2, wherein the first insertion part has a first bottom plate, a first rib and a second rib; Both the first rib and the second rib are connected to the first bottom plate, and the third side channel is formed between the first rib and the second rib; Two notches are provided on the second retaining rib; In the state where the first insertion part can be inserted into the cavity, the two notches communicate with the first side water channel and the second side water channel respectively. 4 . The cooling plate assembly according to claim 3 , wherein the first bottom plate is provided with an inclined surface at a position corresponding to the notch. 5 . 5. The cooling plate assembly according to claim 3, wherein the main body of the cooling plate has a general water inlet and a general water outlet, both of the general water inlet and the general water outlet extend along a first direction, and the total The water inlets are respectively connected to the first side waterway and the middle waterway, and the main water outlet is respectively connected to the second side water tank and the middle waterway; One end of the middle waterway, the main water inlet and the main water outlet located at the first socket is open; When the first socket part is inserted into the cavity, the second retaining rib can close the openings of the central water channel, the main water inlet and the main water outlet on the side of the first socket. 6. The cooling plate assembly according to claim 5, wherein a plurality of dividing ribs are arranged in the cavity, each of the dividing ribs is arranged in sequence along the second direction, and each of the dividing ribs is arranged along the first Direction extension setting; Each of the dividing ribs divides the cavity to form the middle waterway, the first side waterway, the second side waterway, the main water inlet and the main water outlet; In the state where the first insertion part is inserted into the cavity, the first rib abuts against part of the dividing rib, and the first rib and the adjacent rib in contact with the first rib The turning chamber of the channel formed between two dividing ribs. 7. The cooling plate assembly according to claim 2, further comprising a second end plate, the second end plate is provided with a water inlet channel and a water outlet channel; The main body of the cooling plate is provided with a general water inlet and a general water outlet, both of which extend along the first direction, and the general water inlet communicates with the first side waterway and the middle waterway respectively, The main water outlet is respectively connected to the second side water tank and the middle water channel; The second end plate is connected to the other end of the cooling plate main body along the first direction; When the second end plate is connected to the main body of the cooling plate, the water inlet channel communicates with the main water inlet, and the water outlet channel communicates with the main water outlet. 8 . The cooling plate assembly according to claim 7 , wherein the second end plate has a second main board and a second insertion portion, and the second insertion portion has a central raised strip and two side portions The convex strips, the middle convex strip and one side convex strip are located on both sides of the water inlet channel, and the middle convex strip and the other side convex strip are located on both sides of the water outlet channel; The cooling plate main body has a second socket communicating with the cavity; The second plug-in part can be inserted into the cavity through the second socket, so that the middle protruding strip closes the middle water channel and is located on one side of the second socket, and the two side protruding strips The bars respectively close the first side water channel and the second side water channel on one side of the second socket, the water inlet channel communicates with the general water inlet channel, and the water outlet channel communicates with the general water outlet channel. 9. The cooling plate assembly according to claim 8, wherein a plurality of dividing ribs are arranged in the cavity, each of the dividing ribs is arranged in sequence along the second direction, and each of the dividing ribs is arranged along the first Direction extension setting; Each of the dividing ribs divides the cavity to form the middle waterway, the first side waterway, the second side waterway, the main water inlet and the main water outlet; In the state where the second insertion part is inserted into the cavity, the middle protruding line abuts against part of the dividing rib, the side protruding line abuts against part of the dividing rib, and the central protruding line The turning cavity of the middle water channel formed between the strip and the adjacent two dividing ribs in contact with the central convex strip, and the space between the side convex strip and the adjacent two dividing ribs in contact with the side convex strip The turning chamber of the side channel formed. 10. The cooling plate assembly according to claim 7, wherein the first end plate and the main body of the cooling plate are fixed by laser wire welding, and the second end plate and the main body of the cooling plate are fixed by laser welding. Filler welding fixed.

Images