Runner plate and refrigerant direct cooling plate assembly thereof

Abstract

The utility model discloses a runner plate and a refrigerant direct cooling plate assembly. A runner structure is punched on the runner plate and comprises an inlet main runner, a shunting runner, a U-shaped bent runner, an outlet runner and a flow resistance compensation runner. By means of the multi-flow-distribution structure, the water distribution effect on the plate is more uniform, and the temperature difference of refrigerants in different areas and different flow channels is reduced. Meanwhile, a flow resistance compensation flow channel is additionally arranged in an area with a smaller flow channel length distance, so that proper size compensation is performed on the flow channel distance in the area, the flow resistance of the flow channel in the upper flow channel area and the flow resistance of the flow channel in the lower flow channel area tend to be consistent, the flow distribution of a refrigerant medium is uniform, and the temperature rise of each position of a battery cell tends to be consistent; and the performance of the battery pack is maintained.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchange equipment field, concretely relates to a runner plate and refrigerant direct cooling plate assembly including the runner plate. BACKGROUND

[0002] The automobile battery generates heat in the process of charging and discharging, especially the power battery used in new energy vehicles, the power battery unit is generally equipped with a cooling device to ensure the battery temperature in a safe and operable state.

[0003] The traditional power battery cooling system adopts water cooling or air cooling heat exchange mode, the water cooling mode generally consists of an expansion tank, a hose, a cooling water pump and a battery cooler, and its working principle is that a special cooling liquid flows in the cooling liquid pipeline inside the power battery to transfer the heat generated by the power battery to the cooling liquid, thereby reducing the temperature of the power battery. The air cooling mode uses a cooling fan to suck air from the vehicle cabin into the power battery box to cool the power battery and the control unit of the power battery and other components. Therefore, it can be found that the traditional power battery cooling system is equipped with many components such as heat exchange devices and water circulation systems, which inevitably leads to high failure probability and high maintenance cost of the cooling system, in addition, the air cooling heat exchange efficiency is limited, and the water cooling energy consumption is large.

[0004] The refrigerant direct cooling heat exchange mode can effectively solve the above-mentioned air cooling and liquid cooling problems. However, the existing refrigerant direct cooling plate has the problem of uneven distribution of refrigerant in the flow channel, which leads to overheating of the refrigerant in part of the flow channel. The refrigerant medium in the overheated flow channel will change from a gas-liquid two-phase coexistence state to a gas-only state, and the temperature will also increase significantly compared to other flow channels, ultimately leading to large temperature difference of the battery cells in the power battery pack, and further affecting the performance of the battery cells in the battery pack. SUMMARY

[0005] To overcome the shortcomings of the prior art, one of the purposes of the utility model is to provide a runner plate, and the second purpose is to provide a refrigerant direct cooling plate assembly including the runner plate, which can solve the problem of uneven distribution of refrigerant in the flow channel of the existing refrigerant plate, which leads to overheating of the refrigerant medium in part of the flow channel and affects the performance of the battery pack.

[0006] The utility model realizes the following technical solutions:

[0007] A runner plate comprises a plate body having a runner structure for refrigerant flow; the plate body comprises upper and lower symmetric: upper runner area and lower runner area; the runner structure comprises sequentially connected: inlet main runner, shunt runner, U-shaped bending runner and outlet runner; the upper runner area is provided with a first shunt runner and a first U-shaped bending runner connected thereto, and the lower runner area is also provided with a second shunt runner and a second U-shaped bending runner connected thereto; the inlet main runner is connected to the first shunt runner and the second shunt runner; the outlet runner comprises a first outlet runner and a second outlet runner, the first outlet runner is connected to the rear end of the first U-shaped bending runner, and the second outlet runner is connected to the rear end of the second U-shaped bending runner; the runner structure further comprises a flow resistance compensation runner; when the distance between the lower runner area and the runner outlet is less than the distance between the upper runner area and the runner outlet, the flow resistance compensation runner is arranged between the second U-shaped bending runner and the second outlet runner; when the distance between the upper runner area and the runner outlet is less than the distance between the lower runner area and the runner outlet, the flow resistance compensation runner is arranged between the first U-shaped bending runner and the first outlet runner.

[0008] Further, the flow resistance compensation runner is a U-shaped runner structure, the front end and the rear end of which are connected to the second U-shaped bending runner and the second outlet runner, or the front end and the rear end of which are connected to the first U-shaped bending runner and the first outlet runner.

[0009] Further, the first shunt runner comprises sequentially connected: single channel structure, double channel structure and four channel structure; the front end of the single channel structure is connected to the inlet main runner, and the rear end of the single channel structure is simultaneously connected to two channels of the double channel structure to realize shunt; the four channel structure comprises two groups of double channels, and two channels of the double channel structure are respectively connected to two groups of double channels of the four channel structure to realize re-shunt; the first U-shaped bending runner is provided with four, and four channels of the four channel structure are respectively connected to four first U-shaped bending runners.

[0010] Further, the second shunt runner comprises sequentially connected: single channel structure, double channel structure and four channel structure; the front end of the single channel structure is connected to the inlet main runner, and the rear end of the single channel structure is simultaneously connected to two channels of the double channel structure to realize shunt; the four channel structure comprises two groups of double channels, and two channels of the double channel structure are respectively connected to two groups of double channels of the four channel structure to realize re-shunt; the second U-shaped bending runner is provided with four, and four channels of the four channel structure are respectively connected to four second U-shaped bending runners.

[0011] Further, the plate body is further punched with a plurality of reinforcing grooves; the reinforcing grooves are not communicated with the flow channel structure.

[0012] Further, the side edge of the plate body is further punched with a plurality of fastening holes for connecting fasteners.

[0013] A refrigerant direct cooling plate assembly comprising the flow channel plate further comprises: a water distribution block; the water distribution block is provided with an inlet water channel and an outlet water channel; the inlet water channel is connected to the inlet main flow channel on the flow channel plate, and the outlet water channel is connected to the outlet flow channel on the flow channel plate.

[0014] Further, the outlet water channel comprises an outlet main channel and two outlet branch channels connected to the rear end of the outlet main channel, and the two outlet branch channels are connected to the first outlet flow channel and the second outlet flow channel respectively.

[0015] Further, the water distribution block is further provided with: an inlet water nozzle and an outlet water nozzle; the inlet water nozzle is arranged on the side surface of the water distribution block and is communicated with the inlet water channel; the outlet water nozzle is arranged on the side surface of the water distribution block and is communicated with the outlet water channel.

[0016] Further, the refrigerant direct cooling plate assembly further comprises: a base plate; the base plate is arranged on the flow channel plate to realize the closure of the radial direction of the flow channel structure; the base plate is provided with a connecting hole for connecting fasteners, so as to be fastened and connected with the flow channel plate; the water distribution block, the base plate and the flow channel plate are sequentially fixed and connected from top to bottom.

[0017] Compared with the prior art, the refrigerant direct cooling plate assembly has the following beneficial effects:

[0018] During operation, the refrigerant medium enters from the inlet main flow channel, is divided into the first branch flow channel in the upper flow channel region and the second branch flow channel in the lower flow channel region; in the upper flow channel region, the refrigerant medium enters into a plurality of first U-shaped bending flow channels after being divided by the first branch flow channel multiple times, flows through a plurality of bending paths, is collected into the first outlet flow channel, and finally flows out of the plate; in the lower flow channel region, the refrigerant medium enters into a plurality of second U-shaped bending flow channels after being divided by the second branch flow channel multiple times, flows through a plurality of bending paths, is collected into the second outlet flow channel, and finally flows out of the plate.

[0019] (1) Through the shunt structure, the refrigerant medium respectively cools the upper half area and the lower half area of the plate body, and realizes uniform heat dissipation of the upper and lower two half areas. In each half area, the refrigerant medium passes through the straight shunt flow channel and the multiple curved U-shaped bending flow channel in turn, thereby realizing uniform and sufficient heat dissipation of each position in the half area. Through such multiple shunt structures, the water distribution effect on the plate is more uniform, and the temperature difference of the refrigerant in different regions and different flow channels is reduced.

[0020] (2) Due to the limitation of the installation position of the battery pack or the external cooling system, the inlet main flow channel cannot be arranged on the central axis direction of the flow channel plate; due to the actual working condition limitation, the inlet main flow channel is often arranged on the position deviated to the upper flow channel region or the lower flow channel region. In the utility model, since it is expected that the flow channel structure of the upper flow channel region and the flow channel structure of the lower flow channel region can be made into an upper and lower symmetrical form, therefore, the position deviation of the inlet main flow channel will directly affect the flow channel length distance of the upper flow channel region and the lower flow channel region. The difference of the flow channel length distance will cause the difference of the flow resistance, so that the flow distribution of the upper and lower two half areas is uneven, and then the heat dissipation effect is different, so that the local position temperature rise of the battery pack is larger. In order to solve this problem, the utility model adds a flow resistance compensation flow channel in the region with smaller flow channel length distance, thereby appropriately compensating the flow channel distance of the region, so that the flow resistance of the upper flow channel region and the lower flow channel region tends to be consistent, and then the flow distribution of the refrigerant medium is uniform, thereby avoiding the problem that the refrigerant medium in the local position of the flow channel plate changes into a state of only existing gas, thereby causing the large temperature difference of the battery cell in the power battery pack. The heat dissipation effect of the utility model is more uniform and sufficient, so that the temperature rise of each position of the battery cell tends to be consistent, which is beneficial to maintaining the performance of the battery pack. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 Assembled schematic view of the refrigerant direct cooling plate assembly is shown.

[0022] Figure 2 Assembled schematic view of the refrigerant direct cooling plate assembly is shown.

[0023] Figure 3 Flow channel structure schematic view of the flow channel plate is shown.

[0024] Figure 4 Schematic view of the first shunt flow channel is shown.

[0025] Figure 5 Schematic view of the second shunt flow channel is shown.

[0026] Figure 6 Appearance schematic view of the water distribution block is shown.

[0027] Figure 7A schematic view of the inlet water channel inside the water distribution block is shown.

[0028] Figure 8 A schematic view of the outlet water channel inside the water distribution block is shown.

[0029] In the figure: 10, flow channel plate; 101, upper flow channel area; 102, lower flow channel area; 11, inlet main flow channel; 12, first branch flow channel; 121, single channel structure; 122, double channel structure; 123, four channel structure; 13, first U-shaped bending flow channel; 14, first outlet flow channel; 15, second branch flow channel; 16, second U-shaped bending flow channel; 17, second outlet flow channel; 18, flow resistance compensation flow channel; 19, reinforcing groove; 110, fastening hole; 20, water distribution block; 21, water inlet passage; 22, water outlet passage; 221, water outlet main passage; 222, water outlet branch passage; 23, inlet water nozzle; 24, outlet water nozzle; 30, base plate; 31, connecting hole. DETAILED DESCRIPTION

[0030] Hereinafter, the present application will be further described in conjunction with the drawings and the specific embodiments, and it should be noted that the following described embodiments or technical features can be combined in any manner to form new embodiments without conflict.

[0031] In the description of the present application, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0032] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0033] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication inside two elements or the interaction relationship of two elements.For ordinary skilled in the art, the above-mentioned terms can be understood according to the specific meaning of the utility model.

[0034] Referring to Figures 1-3 The utility model discloses a runner plate 10, it applies on refrigerant direct cooling plate assembly. The refrigerant direct cooling plate assembly can be applied to the heat dissipation of the battery pack of new energy automobile, of course can also be applied to the heat dissipation of other batteries or electric equipment.

[0035] Referring to Figure 3 The runner plate 10 includes plate member main body, and the plate member main body is punched out with runner structure, and the runner structure is used for passing refrigerant medium to heat exchange battery (not shown in drawing) placed on the side of runner plate 10.

[0036] The plate member main body includes two half regions that are symmetrical up and down, and is respectively upper runner area 101 and lower runner area 102. The runner structure specifically includes sequentially connected: import main runner 11, shunt runner, U-shaped bending runner and export runner;Among them, the shunt runner includes the first shunt runner 12 in the upper runner area 101 and the second shunt runner 15 in the lower runner area 102;The U-shaped bending runner includes the first shunt runner 12 in the upper runner area 101 and the second U-shaped bending runner 16 in the lower runner;The export runner includes first export runner 14 and second export runner 17.

[0037] Referring to Figures 3-5 The import main runner 11 is connected to the first shunt runner 12 and the second shunt runner 15 simultaneously. The first shunt runner 12 is connected to the first U-shaped bending runner 13, and the rear end of the first U-shaped bending runner 13 is connected to the first export runner 14;The second shunt runner 15 is connected to the second U-shaped bending runner 16, and the rear end of the second U-shaped bending runner 16 is connected to the second export runner 17.

[0038] In particular, the flow channel structure further comprises a flow resistance compensation flow channel 18. When the distance between the lower flow channel region 102 and the flow channel outlet (the end of the first outlet flow channel 14) is less than the distance between the upper flow channel region 101 and the flow channel outlet (the end of the second outlet flow channel 17), the flow resistance compensation flow channel 18 is arranged between the second U-shaped bending flow channel 16 and the second outlet flow channel 17. When the distance between the upper flow channel region 101 and the flow channel outlet is less than the distance between the lower flow channel region 102 and the flow channel outlet, the flow resistance compensation flow channel 18 is arranged between the first U-shaped bending flow channel 13 and the first outlet flow channel 14.

[0039] In operation, the refrigerant medium enters from the inlet main flow channel 11, and is divided into the first dividing flow channel 12 of the upper flow channel region 101 and the second dividing flow channel 15 of the lower flow channel region 102. In the upper flow channel region 101, the refrigerant medium enters the plurality of first U-shaped bending flow channels 13 after being divided by the first dividing flow channel 12 multiple times, flows through the multiple bending paths, and is collected into the first outlet flow channel 14 and finally flows out of the plate; in the lower flow channel region 102, the refrigerant medium enters the plurality of second U-shaped bending flow channels 16 after being divided by the second dividing flow channel 15 multiple times, flows through the multiple bending paths, and is collected into the second outlet flow channel 17 and finally flows out of the plate.

[0040] (1) Through the dividing structure, the refrigerant medium cools the upper half region and the lower half region of the plate body respectively, achieving uniform heat dissipation of the two half regions. In each half region, the refrigerant medium sequentially passes through the straight dividing flow channel and the multiple bending U-shaped bending flow channel, thereby achieving uniform and sufficient heat dissipation at each position in the half region. Through such multiple dividing structures, the water distribution effect on the plate is more uniform, and the temperature difference of the refrigerant in different regions and different flow channels is reduced.

[0041] (2) Due to limitations in the installation location of the battery pack or external cooling system, the inlet main channel 11 may not be able to be located along the central axis of the flow channel plate 10. Due to actual operating conditions, the inlet main channel 11 is often located towards the upper flow channel region 101 or towards the lower flow channel region 102. In this invention, since it is desired that the flow channel structure of the upper flow channel region 101 and the flow channel structure of the lower flow channel region 102 be symmetrical, the positional bias of the inlet main channel 11 will directly affect the difference in the flow channel length between the upper flow channel region 101 and the lower flow channel region 102. The difference in the flow channel length will lead to a difference in flow resistance, resulting in uneven flow distribution between the upper and lower halves, which in turn leads to different heat dissipation effects and greater local temperature rise in the battery pack. To address this issue, this invention adds a flow resistance compensation channel 18 in areas with shorter flow channel lengths. This provides appropriate dimensional compensation for the flow channel distance in these areas, making the flow resistance of the upper flow channel region 101 and the lower flow channel region 102 more consistent. This, in turn, ensures a more uniform distribution of the cooling medium flow rate, preventing the cooling medium in certain areas of the flow channel plate 10 from becoming merely gaseous, which would otherwise lead to significant temperature differences among the battery cells within the power battery pack. This invention provides more uniform and sufficient heat dissipation, resulting in more consistent temperature rise across the battery cells and contributing to the maintenance of the battery pack's performance.

[0042] For example, in Figure 3 In one embodiment shown, due to operating conditions and limitations, the inlet main channel 11 is positioned in a direction biased towards the lower flow channel region 102. This results in a smaller flow channel distance in the lower flow channel region 102 compared to the upper flow channel region 101. Therefore, in this embodiment, a flow resistance compensation channel 18 is added between the second U-shaped bend channel 16 and the second outlet channel 17 to appropriately compensate for the flow channel distance in the lower flow channel region 102, thereby making the flow resistance of the upper flow channel region 101 and the lower flow channel region 102 more consistent. Of course, the specific dimensions and orientation of the flow resistance compensation channel 18 depend on specific needs and can be determined by calculating the flow resistance values ​​and comparing the differences in flow resistance. In this embodiment, the flow resistance compensation channel 18 is a U-shaped bend channel; in other embodiments, it can also be set to other shapes and dimensions.

[0043] Specifically, see Figure 4The first shunt flow channel 12 comprises, in sequence, a single-channel structure 121, a double-channel structure 122, and a four-channel structure 123. The single-channel structure 121 comprises one channel, the double-channel structure 122 comprises two channels, and the four-channel structure 123 comprises two groups of double channels, each group of double channels comprising two channels. The front end of the single-channel structure 121 is connected to the inlet main flow channel 11, and the rear end of the single-channel structure 121 is simultaneously connected to the two channels of the double-channel structure 122. The two channels of the double-channel structure 122 are respectively connected to the two groups of channels of the four-channel structure 123. The number of the first U-shaped bending flow channels 13 is four, and each of the first U-shaped bending flow channels 13 is connected to a channel of the four-channel structure 123.

[0044] In the upper flow channel area 101, the refrigerant medium is divided twice.

[0045] Similarly, referring to Figure 5 The second shunt flow channel 15 comprises, in sequence, a single-channel structure 121, a double-channel structure 122, and a four-channel structure 123. The single-channel structure 121 comprises one channel, the double-channel structure 122 comprises two channels, and the four-channel structure 123 comprises two groups of double channels, each group of double channels comprising two channels. The front end of the single-channel structure 121 is connected to the inlet main flow channel 11, and the rear end of the single-channel structure 121 is simultaneously connected to the two channels of the double-channel structure 122. The two channels of the double-channel structure 122 are respectively connected to the two groups of channels of the four-channel structure 123. The number of the second U-shaped bending flow channels 16 is four, and each of the second U-shaped bending flow channels 16 is connected to a channel of the four-channel structure 123.

[0046] In the lower flow channel area 102, the refrigerant medium is divided twice.

[0047] On the overall area of the whole flow channel plate 10, the refrigerant medium is divided three times in total, and the flow distribution effect is sufficient and uniform.

[0048] Preferably, referring to Figure 3 The plate body is further punched with a plurality of reinforcing grooves 19 for enhancing the strength of the plate body so that the plate body is not easy to bend or shear. The reinforcing grooves 19 and the flow channel structures are not connected to each other.

[0049] Preferably, in order to facilitate fastening assembly with the base plate 30, the side edge of the plate body of the flow channel plate 10 is further punched with a plurality of fastening holes 110 for mounting fasteners.

[0050] The utility model also discloses a refrigerant direct cooling plate assembly which comprises the above-mentioned flow channel plate 10. Any refrigerant direct cooling plate assembly using the same or substantially same flow channel plate 10 should be within the protection scope of the utility model.

[0051] Referring toFigures 6-8 The refrigerant direct cooling plate assembly further comprises a water distribution block 20, which is internally provided with an inlet water channel 21 and an outlet water channel 22; the inlet water channel 21 is connected to the inlet main flow channel 11 on the flow channel plate 10, and is used for inputting refrigerant medium to the flow channel plate 10. The outlet water channel 22 is connected to the outlet flow channel on the flow channel plate 10, so as to receive the output of the refrigerant medium after heat exchange.

[0052] Preferably, referring to Figure 8 The outlet water channel 22 specifically comprises an outlet main channel 221 and two outlet branch channels 222 connected to the rear end of the outlet main channel 221, and the two outlet branch channels 222 are respectively connected to the first outlet flow channel 14 and the second outlet flow channel 17. The two branch flows output from the first outlet flow channel 14 and the second outlet flow channel 17 are collected in the outlet main channel 221.

[0053] Further preferably, referring to Figure 6 The water distribution block 20 is further provided with an inlet water nozzle 23 and an outlet water nozzle 24. The inlet water nozzle 23 is arranged on the side surface of the water distribution block 20 and is communicated with the inlet water channel 21 inside the water distribution block 20; the outlet water nozzle 24 is arranged on the side surface of the water distribution block 20 and is communicated with the outlet water channel 22.

[0054] Preferably, referring to Figures 1-2 The refrigerant direct cooling plate assembly further comprises a base plate 30. The base plate 30 is arranged on the flow channel plate 10, so as to realize closure in the radial direction of the flow channel structure and make the refrigerant medium flow in the axial direction of the flow channel structure. The base plate 30 is further provided with connecting holes 31 for mounting fasteners, so as to fasten and connect the base plate 30 and the flow channel plate 10. The water distribution block 20, the base plate 30 and the flow channel plate 10 are sequentially and fixedly connected from top to bottom.

[0055] The above-mentioned embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-essential changes and replacements made by those skilled in the art on the basis of the present application all belong to the scope of protection required by the present application.

Claims

1. A runner plate characterized by, The plate body has a flow channel structure for refrigerant flow; The plate body includes upper and lower symmetrical upper and lower flow channel regions; the flow channel structure includes sequentially connected inlet main flow channel, branch flow channel, U-shaped bending flow channel and outlet flow channel; the upper flow channel region is provided with connected first branch flow channel and first U-shaped bending flow channel, and the lower flow channel region is also provided with connected second branch flow channel and second U-shaped bending flow channel; the inlet main flow channel is connected to the first branch flow channel and the second branch flow channel; the outlet flow channel includes first outlet flow channel and second outlet flow channel, the first outlet flow channel is connected to the rear end of the first U-shaped bending flow channel, and the second outlet flow channel is connected to the rear end of the second U-shaped bending flow channel; The flow resistance compensation flow channel is arranged between the second U-shaped bending flow channel and the second outlet flow channel when the distance between the lower flow channel region and the flow channel outlet is less than the distance between the upper flow channel region and the flow channel outlet; the flow resistance compensation flow channel is arranged between the first U-shaped bending flow channel and the first outlet flow channel when the distance between the upper flow channel region and the flow channel outlet is less than the distance between the lower flow channel region and the flow channel outlet. The flow resistance compensation flow channel is a U-shaped flow channel structure, the front end and the rear end of which are connected to the second U-shaped bending flow channel and the second outlet flow channel, or the front end and the rear end of which are connected to the first U-shaped bending flow channel and the first outlet flow channel.

2. The runner plate of claim 1, wherein The first branch flow channel includes sequentially connected single channel structure, double channel structure and four channel structure; the front end of the single channel structure is connected to the inlet main flow channel, and the rear end of the single channel structure is connected to two channels of the double channel structure to realize branch flow; the four channel structure includes two groups of double channels, and two channels of the double channel structure are connected to two groups of double channels of the four channel structure to realize rebranch flow; 3. The runner plate of claim 1, wherein The first U-shaped bending flow channel is provided with four, and four channels of the four channel structure are connected to four first U-shaped bending flow channels. The second branch flow channel includes sequentially connected single channel structure, double channel structure and four channel structure; the front end of the single channel structure is connected to the inlet main flow channel, and the rear end of the single channel structure is connected to two channels of the double channel structure to realize branch flow; the four channel structure includes two groups of double channels, and two channels of the double channel structure are connected to two groups of double channels of the four channel structure to realize rebranch flow; 4. The runner plate of claim 1, wherein The second U-shaped bending flow channel is provided with four, and four channels of the four channel structure are connected to four second U-shaped bending flow channels. The plate body is also punched with a plurality of reinforcing grooves; the reinforcing grooves and the flow channel structure are not connected.

5. The runner plate of claim 1 wherein, The side of the plate body is also punched with a plurality of fastening holes for connecting fasteners.

6. The runner plate of claim 1, wherein ​ 7. A coolant cold plate assembly, comprising: The flow channel plate as claimed in any one of claims 1-6, further comprising: a water distribution block; a water inlet channel and a water outlet channel are formed in the water distribution block; the water inlet channel is connected to the inlet main flow channel on the flow channel plate, and the water outlet channel is connected to the outlet flow channel on the flow channel plate.

8. The coolant cold plate assembly of claim 7, wherein, The water outlet channel comprises a water outlet main channel and two water outlet branch channels connected to the rear end of the water outlet main channel, and the two water outlet branch channels are respectively connected to the first outlet flow channel and the second outlet flow channel.

9. The coolant cold plate assembly of claim 7, wherein, The water distribution block is further provided with an inlet water nozzle and an outlet water nozzle; the inlet water nozzle is arranged on the side surface of the water distribution block and is communicated with the water inlet channel; and the outlet water nozzle is arranged on the side surface of the water distribution block and is communicated with the water outlet channel.

10. The coolant cold plate assembly of claim 7, wherein, The refrigerant direct cooling plate assembly further comprises a base plate; the base plate is pressed on the flow channel plate to realize the closure of the radial direction of the flow channel structure; and a connecting hole for connecting a fastener is formed on the base plate to be fastened and connected with the flow channel plate. The water distribution block, the base plate and the flow channel plate are fixed and connected in sequence from top to bottom.

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