Novel staggered battery liquid cooling heat dissipation device

Abstract

The invention discloses a novel staggered battery liquid cooling heat dissipation device, relates to the technical field of battery heat dissipation, and solves the problems that an existing heat dissipation device is not compact enough in structure and poor in temperature uniformity. Liquid cooling plates are arranged between the batteries and on the surface of the battery on the outermost side; one part of the liquid cooling plate is communicated with the liquid channel in the lower plate, and the other part of the liquid cooling plate is communicated with the liquid channel in the upper plate; the liquid cooling plate comprises a liquid cooling plate front plate, a liquid cooling plate middle plate and a liquid cooling plate rear plate, the liquid cooling plate front plate and the liquid cooling plate rear plate are provided with a plurality of medium flow channels, and the liquid cooling plate middle plate is provided with a plurality of through holes; and a heat exchange medium enters the front plate of the liquid cooling plate from the medium inlet and flows between the front plate of the liquid cooling plate and the rear plate of the liquid cooling plate in a staggered manner through the medium flow channels and the through holes in the middle plate of the liquid cooling plate. According to the invention, the liquid cooling plates are alternately arranged in the upright and inverted postures, and the staggered flow channels are arranged in the liquid cooling plates, so that the heat exchange value can flow back and forth in the liquid cooling plates in a staggered manner, and the temperature uniformity is improved.

Description

Technical Field

[0001] The invention relates to the technical field of battery heat dissipation, and in particular to a novel staggered battery liquid cooling and heat dissipation device. Background Art

[0002] Traditional air cooling has a low heat exchange coefficient with the battery surface, resulting in a relatively slow cooling speed. Under high temperature or high load conditions, air cooling may not meet the needs of rapid cooling of the battery. Due to the unevenness of air flow, the temperature difference between the individual cells inside the battery pack may be large, resulting in poor temperature uniformity. The air cooling system usually requires the installation of components such as air ducts and fans. The sealing design of these components is relatively difficult, which easily leads to dust and moisture entering the battery pack, thereby affecting the performance and life of the battery. Traditional liquid cooling plate heat dissipation, the liquid cooling plate is usually placed at the bottom or side of the battery module for liquid heat dissipation. This placement method may cause a large temperature difference between the individual cells inside the battery pack, resulting in poor temperature uniformity. This temperature difference will affect the overall performance and safety of the battery, and may even cause safety issues such as thermal runaway. Immersion liquid cooling requires the device to be completely immersed in the coolant, which requires the system to have a high degree of sealing to prevent coolant leakage. Since the device is completely immersed, cleaning and replacement of the coolant becomes more complicated. At the same time, the sealing of the system needs to be checked regularly to ensure that no leakage occurs; the coolant used in immersion liquid cooling usually has a higher cost, especially those coolants with good thermal properties, chemical stability, electrical insulation and environmental friendliness, which increases the overall operating cost of the system, and the coolant needs to have good compatibility with electronic components, metal materials, etc., and not corrode or damage components. However, in actual applications, some components may be incompatible with the coolant and require special treatment or replacement. Based on the problems existing in the above-mentioned heat dissipation methods, it is urgent to design a battery heat dissipation device with a compact structure, good heat dissipation effect and high safety performance.

[0003] A Chinese patent with publication number CN221687608U discloses "A semi-enclosed air-cooled heat dissipation energy storage battery structure", in which a mounting top plate is fixedly connected to a mounting bottom plate, and the mounting top plate and the mounting bottom plate form a mounting cavity for mounting two battery groups. The two battery groups are symmetrically arranged in the mounting cavity, and there is an air duct between the two battery groups. A battery group composed of multiple cells, the mounting top plate and the mounting bottom plate form a mounting cavity for mounting two battery groups, so that the low-temperature air generated by the outside can exchange heat with the heat dissipation side of the battery group over the maximum area. However, this device is relatively large in size, has low space utilization, and poor sealing performance; Chinese patent publication number CN118610643A discloses "A liquid cooling plate flow channel structure for heat dissipation of battery packs, a cooling method for battery packs and liquid cooling plate flow channels", in which a cooling medium inlet and a cooling medium outlet are arranged on the same side of one end of the lower liquid cooling plate, an inlet side flow channel is arranged on the cooling medium inlet side, and an outlet side flow channel is arranged on the cooling medium outlet side, the inlet side flow channel and the outlet side flow channel are arranged relative to each other to form an asymmetric structure, the inlet side flow channel and the outlet side flow channel independently form a number of branch flow channels, each branch flow channel is designed to be a combination of different numbers of flow channel cavities from a single cavity to multiple cavities to regulate the flow rate and flow velocity of the cooling medium flowing through the branch flow channel, the number of flow channel cavities arranged on the branch flow channel with a long path through which the cooling medium flows is greater than that on the branch flow channel with a short path, and the outlet side flow channel can distribute more fluid per unit time and unit length to reduce the temperature difference of the battery pack. However, the temperature difference between the individual cells in the battery pack of this structure is large, and the temperature uniformity is poor. In summary, how to design a heat dissipation device with a compact structure, good heat dissipation effect and high safety is an issue that needs to be focused on at present. Summary of the invention

[0004] In order to solve the above-mentioned problems of the existing heat dissipation device being not compact enough and having poor temperature uniformity, the present invention proposes a new staggered battery liquid cooling heat dissipation device. The present invention arranges the liquid cooling plates alternately in upright and inverted positions, and sets staggered flow channels in the liquid cooling plates, so that the heat exchange value can flow back and forth in the liquid cooling plates, thereby improving the temperature uniformity.

[0005] The present invention proposes a novel staggered battery liquid cooling and heat dissipation device, which specifically comprises a liquid cooling plate, a lower plate and an upper plate, wherein a plurality of battery columns are arranged between the lower plate and the upper plate; a liquid cooling plate is arranged between two adjacent batteries in each column, and a liquid cooling plate is also arranged on the outer surface of the battery at the end of each column; a part of the liquid cooling plate is connected with the liquid channel in the lower plate, and another part of the liquid cooling plate is connected with the liquid channel in the upper plate; the liquid cooling plate comprises a liquid cooling plate front plate, a liquid cooling plate middle plate and a liquid cooling plate rear plate, the liquid cooling plate front plate, the liquid cooling plate middle plate and the liquid cooling plate rear plate are stacked, a plurality of medium flow channels are arranged parallelly and obliquely on the liquid cooling plate front plate and the liquid cooling plate rear plate, and a plurality of through holes are arranged on the liquid cooling plate middle plate; a medium inlet is arranged on the liquid cooling plate front plate, and a medium outlet is arranged on the liquid cooling plate rear plate; a heat exchange medium enters the liquid cooling plate front plate from the medium inlet, passes through the medium flow channel and the through holes on the liquid cooling plate middle plate, and the heat exchange medium flows staggeredly between the liquid cooling plate front plate and the liquid cooling plate rear plate, and finally flows out from the medium outlet.

[0006] Furthermore, the lower plate includes lower plate one and lower plate two, which are stacked together; lower plate one is provided with a plurality of groups of liquid channels, each group of liquid channels includes an inlet channel and an outflow channel, a plurality of medium inlets are connected to the inlet channel, and a plurality of medium outlets are connected to the outflow channel.

[0007] Furthermore, the upper plate includes upper plate one and upper plate two, and upper plate one and upper plate two are stacked together; upper plate two is provided with a plurality of groups of liquid channels, each group of liquid channels includes an inlet channel and an outflow channel, a plurality of medium inlets are connected to the inlet channel, and a plurality of medium outlets are connected to the outflow channel.

[0008] Furthermore, a plurality of rectangular through holes are arranged on the lower plate and the upper plate, and the inflow channel and the outflow channel are arranged on different sides of the rectangular through holes.

[0009] Furthermore, the inlet of the inflow channel and the outlet of the outflow channel on the lower plate are arranged on different sides of the lower plate.

[0010] Furthermore, the inlet of the inflow channel and the outlet of the outflow channel on the upper plate are arranged on different sides of the upper plate.

[0011] Furthermore, the plurality of liquid cooling plates connected by the liquid channels on the upper plate and the plurality of liquid cooling plates connected by the liquid channels on the lower plate are alternately arranged between each column of batteries.

[0012] Furthermore, a through groove is arranged on the middle plate of the liquid cooling plate, and the through groove is communicated with the medium flow channel.

[0013] Furthermore, the upper plate and the lower plate are connected by long bolts.

[0014] Furthermore, the lower plate 1 and the lower plate 2 are connected by short bolts, and the upper plate 1 and the upper plate 2 are connected by short bolts.

[0015] The beneficial effects of the novel staggered battery liquid cooling and heat dissipation device described in the present invention are:

[0016] (1) The novel staggered battery liquid cooling device described in the present invention overcomes the problem of poor temperature uniformity of existing heat dissipation devices. The liquid cooling plate is used as the main heat dissipation component. The coolant flows in from the medium inlet of the front plate of the liquid cooling plate, flows back and forth between the front plate, the middle plate and the rear plate of the liquid cooling plate, and finally flows out from the medium outlet of the rear plate of the liquid cooling plate. The coolant flows in the liquid cooling plate in a staggered manner, thereby achieving cooling, getting rid of the shortcomings of other heat dissipation devices such as poor cooling effect, and ensuring that the heat is fully and evenly absorbed and taken away;

[0017] (2) In the novel staggered battery liquid cooling and heat dissipation device described in the present invention, the liquid cooling plates are alternately arranged between a plurality of batteries in the same row in a conventional upright position and an inverted position, and a through groove is designed on the top of the liquid cooling plate. Through this arrangement of the liquid cooling plates and the design of the through groove, the formation of local high temperature is effectively reduced, ensuring the uniformity and stability of the temperature inside the entire system;

[0018] (3) The novel staggered battery liquid cooling heat dissipation device described in the present invention overcomes the problem that the existing heat dissipation device is not compact enough. During assembly, bolts and nuts are used for connection. The battery, upper plate and lower plate are assembled by different bolts and nuts to be tightly combined together, ensuring that the connection between the various components is both firm and reliable, thereby achieving the compactness and optimized layout of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0020] In the attached picture:

[0021] Figure 1 It is a three-dimensional structural schematic diagram of a novel staggered battery liquid cooling and heat dissipation device according to the present invention;

[0022] Figure 2 It is a structural schematic diagram of a liquid cooling plate of a novel staggered battery liquid cooling and heat dissipation device according to the present invention;

[0023] Figure 3 It is a structural schematic diagram of a liquid cooling plate front plate of a novel staggered battery liquid cooling and heat dissipation device according to the present invention;

[0024] Figure 4 It is a structural schematic diagram of a liquid cooling plate middle plate of a novel staggered battery liquid cooling and heat dissipation device according to the present invention;

[0025] Figure 5 It is a structural schematic diagram of a liquid cooling plate rear plate of a novel staggered battery liquid cooling and heat dissipation device according to the present invention;

[0026] Figure 6 It is a structural schematic diagram of a rear plate of a novel staggered battery liquid cooling and heat dissipation device according to the present invention;

[0027] Figure 7 It is a structural schematic diagram of a rear plate 2 of a novel staggered battery liquid cooling and heat dissipation device according to the present invention;

[0028] Figure 8 It is a schematic diagram of the structure of a rear plate 1 of a novel staggered battery liquid cooling and heat dissipation device according to the present invention;

[0029] Fig. 9 It is a structural schematic diagram of an upper plate of a novel staggered battery liquid cooling and heat dissipation device according to the present invention;

[0030] Fig.10 It is a structural schematic diagram of an upper plate 1 of a novel staggered battery liquid cooling and heat dissipation device according to the present invention;

[0031] Fig.11 It is a structural schematic diagram of an upper plate 2 of a novel staggered battery liquid cooling and heat dissipation device according to the present invention;

[0032] Wherein: 1-liquid cooling plate, 2-lower plate, 3-long bolts, 4-short bolts, 5-upper plate, 6-battery, 7-liquid cooling plate front plate, 8-liquid cooling plate middle plate, 9-liquid cooling plate rear plate, 10-lower plate one, 11-lower plate two, 12-upper plate one, 13-upper plate two, 14-lower plate inflow channel inlet one, 15-lower plate inflow channel inlet two, 16-lower plate inflow channel inlet three, 17-lower plate outflow channel outlet one, 18-lower plate outflow channel outlet two, 19-lower plate outflow channel outlet three, 20-upper plate inflow channel inlet one, 21-upper plate inflow channel inlet two, 22-upper plate inflow channel inlet three, 23-upper plate outflow channel outlet one, 24-upper plate outflow channel outlet two, 25-upper plate outflow channel outlet three, 26-medium inlet, 27-medium outlet, 28-through groove, 29-medium flow channel. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0036] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0037] Specific implementation method 1: See Figure 1-Figure 11 The present embodiment is described in detail. The novel staggered battery liquid cooling and heat dissipation device described in the present embodiment specifically comprises a liquid cooling plate 1, a lower plate 2 and an upper plate 5, wherein a plurality of rows of batteries 6 are arranged between the lower plate 2 and the upper plate 5; a liquid cooling plate 1 is arranged between two adjacent batteries 6 in each row, and a liquid cooling plate 1 is also arranged on the outer surface of the battery 6 at the end of each row; a portion of the liquid cooling plate 1 is connected to the liquid channel in the lower plate 2, and another portion of the liquid cooling plate 1 is connected to the liquid channel in the upper plate 5; the liquid cooling plate 1 comprises a liquid cooling plate front plate 7, a liquid cooling plate middle plate 8, and a liquid cooling plate 9. The plate 8 and the liquid cooling plate rear plate 9, the liquid cooling plate front plate 7, the liquid cooling plate middle plate 8 and the liquid cooling plate rear plate 9 are stacked, and a plurality of medium flow channels 29 are arranged on the liquid cooling plate front plate 7 and the liquid cooling plate rear plate 9, and the plurality of medium flow channels 29 are parallel to each other and are arranged obliquely as a whole; a plurality of through holes are arranged on the liquid cooling plate middle plate 8, and the plurality of medium flow channels 29 arranged on the liquid cooling plate front plate 7 and the liquid cooling plate rear plate 9 are connected through the plurality of through holes arranged on the liquid cooling plate middle plate 8, and the plurality of through holes follow the principle of fork-in and point-out, such as Figure 3-Figure 5 As shown; a medium inlet 26 is provided on the liquid cooling plate front plate 7, and a medium outlet 27 is provided on the liquid cooling plate rear plate 9; the heat exchange medium enters the liquid cooling plate front plate 7 from the medium inlet 26, passes through the medium flow channel 29 and the through holes on the liquid cooling plate middle plate 8, and the heat exchange medium flows alternately between the liquid cooling plate front plate 7 and the liquid cooling plate rear plate 9, and finally flows out from the medium outlet 27.

[0038] The lower plate 2 includes a lower plate 10 and a lower plate 2 11, and the lower plate 10 and the lower plate 2 11 are stacked together; a plurality of groups of liquid channels are arranged on the lower plate 10, each group of liquid channels includes an inlet channel and an outlet channel, a plurality of medium inlets 26 are connected to the inlet channel, and a plurality of medium outlets 27 are connected to the outflow channel. The heat exchange medium flows into the liquid cooling plate 1 through the inlet channel to exchange heat with the battery. After the heat exchange is completed, the heat exchange medium flows from the medium outlet 27 to the outflow channel and is discharged through the outlet of the outflow channel. In this embodiment, the lower plate 2 is provided with three groups of liquid channels, and the lower plate 2 is provided with a lower plate inlet channel inlet one 14, a lower plate inlet channel inlet two 15, a lower plate inlet channel inlet three 16, a lower plate outflow channel outlet one 17, a lower plate outflow channel outlet two 18 and a lower plate outflow channel outlet three 19; the lower plate inlet channel inlet one 14 and the lower plate outflow channel outlet one 17 are the inlets and outlets of a group of liquid channels, the lower plate inlet channel inlet two 15 and the lower plate outflow channel outlet two 18 are the inlets and outlets of a group of liquid channels, and the lower plate inlet channel inlet three 16 and the lower plate outflow channel outlet three 19 are the inlets and outlets of a group of liquid channels.

[0039] The upper plate 5 includes an upper plate 12 and an upper plate 2 13, and the upper plate 12 and the upper plate 2 13 are stacked together; a plurality of groups of liquid channels are arranged on the upper plate 2 13, each group of liquid channels includes an inlet channel and an outlet channel, a plurality of medium inlets 26 are connected to the inlet channel, and a plurality of medium outlets 27 are connected to the outlet channel. The heat exchange medium flows into the liquid cooling plate 1 through the inlet channel to exchange heat with the battery. After the heat exchange is completed, the heat exchange medium flows from the medium outlet 27 to the outlet channel and is discharged through the outlet of the outlet channel. In this embodiment, the upper plate 5 is provided with three groups of liquid channels, and the upper plate 5 is provided with an upper plate inflow channel inlet 1 20, an upper plate inflow channel inlet 21, an upper plate inflow channel inlet 3 22, an upper plate outflow channel outlet 1 23, an upper plate outflow channel outlet 2 24 and an upper plate outflow channel outlet 3 25; the upper plate inflow channel inlet 1 20 and the upper plate outflow channel outlet 1 23 are the inlets and outlets of a group of liquid channels, the upper plate inflow channel inlet 21 and the upper plate outflow channel outlet 2 24 are the inlets and outlets of a group of liquid channels, and the upper plate inflow channel inlet 3 22 and the upper plate outflow channel outlet 3 25 are the inlets and outlets of a group of liquid channels.

[0040] The lower plate 2 and the upper plate 5 are provided with a plurality of rectangular through holes, and the rectangular through holes cooperate with the battery 6 to leak out the top and bottom of the battery 6; the inflow channel and the outflow channel are provided on different sides of the rectangular through holes, such as Figure 8 and Fig.11 shown.

[0041] The inlet of the inflow channel and the outlet of the outflow channel on the lower plate 2 are arranged on different sides of the lower plate 2 .

[0042] The inlet of the inflow channel and the outlet of the outflow channel on the upper plate 5 are arranged on different sides of the upper plate 5 .

[0043] The plurality of liquid cooling plates 1 connected by the liquid channels on the upper plate 5 and the plurality of liquid cooling plates 1 connected by the liquid channels on the lower plate 2 are arranged alternately between each column of batteries 6, that is, the plurality of liquid cooling plates 1 arranged between the batteries in the same column 6 are arranged alternately in an upright position and an inverted position to improve the temperature uniformity.

[0044] The liquid cooling plate middle plate 8 is provided with a through groove 28, which is arranged at one end of the liquid cooling plate middle plate 8 away from the medium inlet 26 and the medium outlet 27. The through groove 28 is connected to the medium flow channel 29. After the heat exchange medium in the liquid cooling plate front plate 7 and the liquid cooling plate rear plate 9 flows to the position of the through groove 28, the heat exchange medium in each medium flow channel 29 is mixed in the through groove 28, which effectively reduces the formation of local high temperature and ensures the uniformity and stability of the internal temperature of the entire system.

[0045] The upper plate 5 and the lower plate 2 are connected by long bolts 3 , and the battery is clamped and fixed by the upper plate 5 and the lower plate 2 .

[0046] The lower plate 10 and the lower plate 2 11 are connected by short bolts 4, so that the lower plate 10 and the lower plate 2 11 are buckled and fastened together; the upper plate 12 and the upper plate 2 13 are connected by short bolts 4, so that the upper plate 12 and the upper plate 2 13 are buckled and fastened together.

[0047] Summarizing the above implementation cases, the novel staggered battery liquid cooling heat dissipation device described in the present invention overcomes the problem of poor temperature uniformity of the existing heat dissipation device, adopts the liquid cooling plate 1 as the main heat dissipation component, and the coolant flows in from the medium inlet 26 of the liquid cooling plate front plate 7, and flows back and forth between the liquid cooling plate front plate 7, the liquid cooling plate middle plate 8 and the liquid cooling plate rear plate 9, and finally flows out from the medium outlet 27 of the liquid cooling plate rear plate 9. The coolant flows in the liquid cooling plate 1 in a staggered manner, thereby achieving cooling, getting rid of the shortcomings of poor cooling effect of other heat dissipation devices, and ensuring that the heat is fully and evenly absorbed and taken away; the novel staggered battery liquid cooling heat dissipation device described in the present invention, the liquid cooling plate 1 is in a traditional upright posture and an inverted posture They are alternately arranged in a vertical position between several batteries 6 in the same column, and a through groove 28 is designed on the top of the liquid cooling plate middle plate 8; through this arrangement of the liquid cooling plate 1 and the design of the through groove 28, the formation of local high temperature is effectively reduced, ensuring the uniformity and stability of the temperature inside the entire system; the new staggered battery liquid cooling heat dissipation device described in the present invention overcomes the problem that the existing heat dissipation device is not compact enough. During assembly, bolts and nuts are used for connection, and the batteries 6, the upper plate 5 and the lower plate 2 are assembled by different bolts and nuts, so that they are tightly combined together, ensuring that the connection between the various components is both stable and reliable, thereby achieving the compactness and optimized layout of the overall structure.

[0048] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the invention. It can also be a reasonable combination of the features recorded in the above implementation methods. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel staggered battery liquid cooling device, characterized in that: The invention comprises a liquid cooling plate (1), a lower plate (2) and an upper plate (5), wherein a plurality of rows of batteries (6) are arranged between the lower plate (2) and the upper plate (5); a liquid cooling plate (1) is arranged between two adjacent batteries (6) in each row, and a liquid cooling plate (1) is also arranged on the outer surface of the batteries (6) at the end of each row; a portion of the liquid cooling plate (1) is connected to a liquid channel in the lower plate (2), and another portion of the liquid cooling plate (1) is connected to a liquid channel in the upper plate (5); the liquid cooling plate (1) comprises a liquid cooling plate front plate (7), a liquid cooling plate middle plate (8) and a liquid cooling plate rear plate (9), wherein the liquid cooling plate front plate (7), the liquid cooling plate middle plate (8) and The liquid cooling plate rear plate (9) is stacked, a plurality of medium flow channels (29) are arranged on the liquid cooling plate front plate (7) and the liquid cooling plate rear plate (9), and a plurality of through holes are arranged on the liquid cooling plate middle plate (8); a medium inlet (26) is arranged on the liquid cooling plate front plate (7), and a medium outlet (27) is arranged on the liquid cooling plate rear plate (9); a heat exchange medium enters the liquid cooling plate front plate (7) from the medium inlet (26), passes through the medium flow channels (29) and the through holes on the liquid cooling plate middle plate (8), and flows alternately between the liquid cooling plate front plate (7) and the liquid cooling plate rear plate (9), and finally flows out from the medium outlet (27).

2. The novel staggered battery liquid cooling and heat dissipation device according to claim 1 is characterized in that: The lower plate (2) comprises a lower plate 1 (10) and a lower plate 2 (11), and the lower plate 1 (10) and the lower plate 2 (11) are stacked together; a plurality of groups of liquid channels are arranged on the lower plate 1 (10), and each group of liquid channels comprises an inflow channel and an outflow channel, a plurality of medium inlets (26) are connected to the inflow channel, and a plurality of medium outlets (27) are connected to the outflow channel.

3. The novel staggered battery liquid cooling and heat dissipation device according to claim 1 is characterized in that: The upper plate (5) comprises an upper plate 1 (12) and an upper plate 2 (13), and the upper plate 1 (12) and the upper plate 2 (13) are stacked together; a plurality of groups of liquid channels are arranged on the upper plate 2 (13), each group of liquid channels comprises an inflow channel and an outflow channel, a plurality of medium inlets (26) are connected to the inflow channel, and a plurality of medium outlets (27) are connected to the outflow channel.

4. The novel staggered battery liquid cooling and heat dissipation device according to claim 2 or 3 is characterized in that: The lower plate (2) and the upper plate (5) are provided with a plurality of rectangular through holes, and the inflow channel and the outflow channel are arranged on different sides of the rectangular through holes.

5. The novel staggered battery liquid cooling and heat dissipation device according to claim 2 is characterized in that: The inlet of the inflow channel and the outlet of the outflow channel on the lower plate (2) are arranged on different sides of the lower plate (2).

6. The novel staggered battery liquid cooling and heat dissipation device according to claim 3 is characterized in that: The inlet of the inflow channel and the outlet of the outflow channel on the upper plate (5) are arranged on different sides of the upper plate (5).

7. The novel staggered battery liquid cooling and heat dissipation device according to claim 1 is characterized in that: The plurality of liquid cooling plates (1) connected by the liquid channels on the upper plate (5) and the plurality of liquid cooling plates (1) connected by the liquid channels on the lower plate (2) are arranged alternately between each column of batteries (6).

8. The novel staggered battery liquid cooling and heat dissipation device according to claim 1 is characterized in that: The liquid cooling plate middle plate (8) is provided with a through groove (28), and the through groove (28) is connected to the medium flow channel (29).

9. The novel staggered battery liquid cooling and heat dissipation device according to claim 1 is characterized in that: The upper plate (5) and the lower plate (2) are connected via long bolts (3).

10. The novel staggered battery liquid cooling and heat dissipation device according to claim 3 is characterized in that: The lower plate 1 (10) and the lower plate 2 (11) are connected via short bolts (4), and the upper plate 1 (12) and the upper plate 2 (13) are connected via short bolts (4).

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