PACK heat dissipation structure

Abstract

The PACK heat dissipation structure comprises a box body, a top plate and a rear plate, wherein the top plate and the rear plate are provided with through holes; the front plate is parallel to the rear plate and connected with the top plate, and a fan is arranged on one side in the box body; the bottom plate is parallel to the top plate and is connected with the front plate and the rear plate to form a cavity; batteries are arranged on the bottom plate and located in the cavity, the batteries are arranged at intervals, and a plurality of channels are arranged in the intervals. In the heat dissipation state, fluid passes through the through holes, the channels and the fan. The through holes are formed in the top plate and the rear plate of the box body, so that the through holes in the top plate ensure that air in the vertical direction enters the box body, the through holes in the rear plate ensure that air in the horizontal direction can also effectively enter the box body, and the air in the box body flows more uniformly due to the two-way air inlet design; and the channels are arranged at intervals in the battery in the box body, and the fluid passes through the channels and is discharged by the fan of the front plate to form a complete heat dissipation cycle, so that the heat dissipation requirement of the battery is met, and the stability of the battery pressure difference is ensured.

Description

Technical Field

[0001] The present invention relates to the field of new energy storage, and in particular to a PACK heat dissipation structure. Background Art

[0002] In the field of new energy storage, "PACK" refers to automotive battery packs, industrial and commercial energy storage battery packs, and household energy storage battery packs, including the battery system and battery packaging structure. To ensure the safety, performance, and lifespan of the battery system, a heat dissipation structure is required. Air cooling is commonly used in existing technologies, but the air inlet configuration for air cooling is often relatively simple, such as opening only the side of the box, resulting in uneven air intake and large temperature and pressure differences between the batteries. Utility Model Content

[0003] In view of this, the present application proposes a PACK heat dissipation structure, which can solve the above-mentioned shortcomings of the general Pack air-cooling heat dissipation system on the market today.

[0004] The technical solution of the present invention is:

[0005] A PACK heat dissipation structure, comprising:

[0006] a top plate having a through hole;

[0007] a rear plate connected to the top plate, the rear plate having a through hole;

[0008] a front plate, arranged parallel to the rear plate and connected to the top plate, wherein a fan is provided on one side of the front plate located inside the box;

[0009] A bottom plate is arranged parallel to the top plate and connected to the front plate and the rear plate to form a cavity; batteries are arranged on the bottom plate, and the batteries are arranged at intervals, and a plurality of channels are arranged in the intervals;

[0010] In the heat dissipation state, the fluid passes through the through hole, the channel and the fan.

[0011] As an optional implementation scheme, the through holes of the top plate of the box body are multiple circular through holes, and a certain distance is maintained between the circular through holes.

[0012] As an optional implementation scheme, the through holes of the rear plate of the box body are strip-shaped through holes, and the strip-shaped through holes are arranged in multiple rows, with a certain distance maintained between each row of strip-shaped through holes.

[0013] As an optional implementation scheme, the number of the channels is consistent with the number of rows of the strip-shaped air holes, and the positions of the channels correspond to the positions of each row of the strip-shaped through holes.

[0014] As an optional embodiment, a depression is provided at the bottom of the box body, and the space above the depression forms a channel.

[0015] As an optional implementation scheme, the front plate of the box body is provided with a third through hole, and the fan is provided at the third through hole.

[0016] The beneficial effects of the present application are as follows: by providing through holes on the top plate and the rear plate of the box, the through holes on the top plate ensure that air in the vertical direction enters the interior of the box, while the through holes on the rear plate ensure that air in the horizontal direction can also effectively enter. This two-way air intake design makes the air flow inside the box more uniform; and channels are provided at the intervals between the batteries in the box, and the incoming air is discharged by the fan on the front plate through the channels, taking away the heat from the battery, forming a complete heat dissipation cycle, meeting the heat dissipation requirements of the battery, and ensuring the stability of the battery pressure difference. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a view from one perspective (exploded view) of a PACK heat dissipation structure disclosed in the present application;

[0018] Figure 2 This is a view from another perspective of a PACK heat dissipation structure disclosed in this application;

[0019] Figure 3 This is a structural schematic diagram of the bottom plate of a PACK heat dissipation structure box disclosed in this application.

[0020] Description of reference numerals:

[0021] 1- box body, 11- top plate, 12- rear plate, 13- front plate, 14- bottom plate;

[0022] 21-first through hole, 22-second through hole, 23-third through hole;

[0023] 3-channel;

[0024] 4- Fan;

[0025] 5-Battery. DETAILED DESCRIPTION

[0026] In the field of new energy storage, "PACK" refers to automotive battery packs, industrial and commercial energy storage battery packs, and household energy storage battery packs, including the battery system and battery packaging structure. To ensure the safety, performance, and lifespan of the battery system, a PACK heat dissipation structure is required. Air cooling is commonly used in existing technologies. However, air cooling often has a relatively simple opening configuration, such as openings only on the side of the box, resulting in uneven air intake and large temperature and pressure differences between the batteries.

[0027] In view of this, the present application proposes a PACK heat dissipation structure, which can solve the above-mentioned shortcomings of the general PACK air-cooling heat dissipation system on the market today.

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] like Figures 1 to 3 As shown, the technical solution of the present invention is a PACK heat dissipation structure, including a box 1, which includes:

[0030] The top plate 11 has a through hole; the back plate 12 is connected to the top plate 11 and also has a through hole; the front plate 13 is arranged parallel to the back plate 12 and connected to the top plate 11, and a fan 4 is provided on one side of the front plate 13 located inside the box body 1; the bottom plate 14 is arranged parallel to the top plate 11 and connected to the front plate 12 and the back plate 13 to form a cavity; batteries 5 are provided on the bottom plate 14 and are located in the cavity, and the batteries 5 are arranged at intervals, and multiple channels 3 are provided in the intervals; in the heat dissipation state, the fluid passes through the through holes, channels 3 and fan 4.

[0031] By providing through holes on the top plate 11 and the rear plate 12 of the box body 1, the through holes on the top plate 11 ensure that air in the vertical direction enters the interior of the box body 1, while the through holes on the rear plate 12 ensure that air in the horizontal direction can also effectively enter. This two-way air intake design makes the air flow inside the box body 1 more uniform; and a channel 3 is provided at the interval between the batteries 5 in the box body 1. The incoming air passes through the channel 3 and is discharged by the fan 4 on the front plate 13, taking away the heat of the battery 5, forming a complete heat dissipation cycle, meeting the heat dissipation requirements of the battery 5, and ensuring the stability of the pressure difference of the battery 5.

[0032] The top plate 11 of the box body 1 is provided with a plurality of first through holes 21 , and a certain distance is maintained between the plurality of first through holes 21 .

[0033] Furthermore, in one embodiment, the first through hole 21 is a circular through hole, and a plurality of circular through holes are provided on the top plate 11 of the box body 1 and close to the center position to form a 4×4 matrix arrangement. The center position is the area where heat is concentrated, and when the battery 5 is working, the heat generated will be concentrated here. Air enters from each circular through hole, which can effectively discharge the heat generated and the gases released during the charging and discharging process, such as hydrogen and oxygen, to avoid gas accumulation inside. The size of the circular through hole can be adjusted according to the specific use environment and the power of the battery 5, but sufficient air circulation should be ensured, and the air intake of the circular through hole can better enter the channel 3 to ensure the stability and reliability of the battery 5, thereby extending the service life of the battery 5.

[0034] The rear plate 12 of the box body 1 is provided with a plurality of second through holes 22 , and the second through holes 22 are arranged in multiple rows, with a certain distance maintained between the second through holes 22 in each row; the number of the channels 3 is consistent with the number of rows of the second through holes 22 , and the positions of the channels 3 correspond to the positions of the second through holes 22 in each row.

[0035] Furthermore, in one embodiment, the second through holes 22 have three vertical rows and are strip-shaped through holes. A certain distance is maintained between each row of strip-shaped through holes. The number and position of the channels 3 correspond to each row of strip-shaped through holes. The channels 3 are distributed on both sides and in the middle of the left and right edges of the box body 1. Between two adjacent channels 3, there are batteries 5. After the horizontal air enters the box body 1 from the strip-shaped through holes, it can directly pass through the channels 3 and then be discharged by the fan 4 on the front panel 13 of the box body 1, taking away the heat of the battery 5. The channels 3 correspond to the strip-shaped through holes. When the type or number of the batteries 5 needs to be adjusted, the strip-shaped through holes and the channels 3 can be adjusted according to actual needs to meet different heat dissipation requirements.

[0036] like Figure 3 As shown, in one embodiment, the bottom of the channel 3 is configured to be concave, which may be an arc-shaped concave or a square-shaped concave.

[0037] The concave structure can increase the surface area of ​​the bottom plate 14, so that the contact area between the air and the bottom plate 14 of the channel 3 is increased when the air flows through, thereby improving the air circulation, helping to more efficiently remove the heat generated by the battery 5 and enhance the heat dissipation effect; and can guide the air to form a more complex flow path, increase the residence time of the air in the channel 3, so that the heat can be more fully exchanged with the air; the arc-shaped depression can reduce wind resistance, thereby reducing the noise generated when the air flows in the channel 3.

[0038] Furthermore, the front plate 13 of the box body 1 is provided with a third through hole 23 , and the fan 4 is provided at the third through hole 23 .

[0039] The air enters through the first through hole 21 and the second through hole 22, passes through the channel 3 and is discharged by the fan 4 of the front plate 13, taking away the heat of the battery 5, forming a complete heat dissipation cycle, meeting the heat dissipation requirements of the battery 5, and ensuring the stability of the pressure difference of the battery 5.

[0040] The above is a detailed introduction to a PACK heat dissipation structure provided by an embodiment of the present invention. The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, the present invention can also be improved and modified in several ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A PACK heat dissipation structure, comprising a box, characterized in that: include: a top plate having a through hole; a rear plate connected to the top plate, the rear plate having a through hole; a front plate, arranged parallel to the rear plate and connected to the top plate, wherein a fan is provided on one side of the front plate located inside the box; A bottom plate is arranged parallel to the top plate and connected to the front plate and the rear plate to form a cavity; batteries are arranged on the bottom plate and located in the cavity, and the batteries are arranged at intervals, and a plurality of channels are provided in the intervals; In the heat dissipation state, the fluid passes through the through hole, the channel and the fan; Wherein, the top plate is provided with a plurality of first through holes, and a certain distance is maintained between the plurality of first through holes; Wherein, the rear plate is provided with a plurality of second through holes, the second through holes are arranged in multiple rows, and a certain distance is maintained between the second through holes in each row; The number of the channels is consistent with the number of rows of the second through holes, and the positions of the channels correspond to the positions of the second through holes in each row; Wherein, a depression is provided at the bottom of the channel.

2. The PACK heat dissipation structure according to claim 1, characterized in that: The front plate is provided with a third through hole, and the fan is provided at the third through hole.

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