L-shaped radiator structure of household energy storage battery PACK

Abstract

The invention discloses an L-shaped radiator structure of a household energy storage battery PACK, the L-shaped radiator structure comprises a PACK cladding, battery modules and L-shaped radiators, the PACK cladding is internally provided with at least one group of L-shaped radiators, each group of L-shaped radiators is provided with the battery module, each L-shaped radiator is an L-shaped frame body structure composed of a radiating support sheet and a radiating side sheet, and the radiating support sheet is provided with a plurality of radiating fins. Heat dissipation copper pipes are embedded in the heat dissipation supporting piece and the heat dissipation side pieces, heat dissipation tooth sets composed of a plurality of heat dissipation teeth are installed on the outer side faces of the heat dissipation side pieces, sealing ring grooves are formed in the portions, on the sides of the heat dissipation tooth sets, of the heat dissipation side pieces, and cover shell sealing rings are installed in the sealing ring grooves. The battery module radiator has the beneficial effects that a radiator structure for directly radiating the battery module is researched and developed, the defects in the radiating aspect of the battery module at the present stage are overcome, the battery module can be simultaneously radiated from the side surface and the bottom after the L-shaped radiator is coupled with the battery module, the radiating area is increased, and the radiating efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of heat dissipation of battery packs, and in particular to an L-shaped radiator structure of a household energy storage battery PACK. Background Art

[0002] In batteries, PACK is used to refer to the battery pack, which includes but is not limited to the battery pack shell, battery module, DC / DC, etc. Among them, DC / DC is used as a voltage control module in energy storage batteries. Its main function is to convert the voltage into the required output voltage during charging and discharging. It can increase, decrease or maintain the voltage unchanged. It will generate a lot of heat during operation, causing the temperature to rise, so it is usually equipped with a heat sink to control the temperature; Household energy storage battery PACK has a small structure and limited overall design. There is no heat dissipation structure specially designed for the battery module. Some energy storage batteries are equipped with a DC / DC with a heat sink structure. Insulation materials are usually used to separate the DC / DC and the battery module to prevent the high temperature of the DC / DC from escaping too much into the battery compartment and causing abnormal temperature rise in the battery. The battery temperature is controlled only by natural heat dissipation. The insulation material has limited insulation performance and it is difficult to completely prevent temperature dissipation, resulting in the battery often being in a high temperature state when working, which is not conducive to the overall performance of the battery. Summary of the invention

[0003] The purpose of the present invention is to provide an L-shaped radiator structure for a household energy storage battery PACK in order to solve the above-mentioned problem.

[0004] The present invention achieves the above-mentioned purpose through the following technical solutions: An L-shaped radiator structure of a household energy storage battery PACK comprises a PACK shell, a battery module and an L-shaped radiator, wherein at least one group of the L-shaped radiators is installed in the PACK shell, and the battery module is installed on each group of the L-shaped radiators. The L-shaped radiator is an L-shaped frame structure composed of a heat dissipation support plate and a heat dissipation side plate, and a heat dissipation copper tube is embedded on the heat dissipation support plate and the heat dissipation side plate. A heat dissipation tooth group composed of a plurality of heat dissipation teeth is installed on the outer side of the heat dissipation side plate, and a sealing ring groove is provided on the heat dissipation side plate on the side of the heat dissipation tooth group, and a cover shell sealing ring is installed in the sealing ring groove.

[0005] Furthermore, the L-shaped radiators are provided in two groups and arranged in an upper and lower manner, and a vertical support frame is provided between the two groups of the L-shaped radiators.

[0006] Furthermore, a bottom thermally conductive adhesive pad is provided between the heat dissipation support and the battery module, and the bottom thermally conductive adhesive pad is adhered to the heat dissipation support.

[0007] Furthermore, a side heat-conducting adhesive pad is provided between the heat-dissipating side plate and the battery module, and the side heat-conducting adhesive pad is adhered to the heat-dissipating side plate.

[0008] Furthermore, the PACK shell consists of a main shell and a shell cover, and the main shell and the shell cover are fixed by screws.

[0009] Furthermore, a heat dissipation hole is provided on a shell wall of the PACK shell close to the heat dissipation tooth side, and the heat dissipation tooth extends to the outside of the PACK shell through the heat dissipation hole.

[0010] Furthermore, the heat dissipation support is provided with a module fixing screw hole, and the bottom of the battery module is fixedly mounted on the module fixing screw hole by screws.

[0011] Furthermore, the heat dissipation side plate is provided with a cover screw hole, and the cover is fixedly mounted on the cover screw hole by screws.

[0012] Furthermore, the L-shaped radiators are provided in two groups and are arranged in a bilaterally symmetrical manner.

[0013] Furthermore, the L-shaped radiator is integrally formed.

[0014] The beneficial effects are: a radiator structure is developed to directly dissipate heat from the battery module, which makes up for the shortcomings of the current battery module heat dissipation; After the L-shaped radiator is coupled with the battery module, it can dissipate heat from the side and bottom of the battery module at the same time, thereby increasing the heat dissipation area and improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional structural diagram of a first embodiment of an L-shaped radiator structure of a household energy storage battery PACK according to the present invention; Figure 2 It is an exploded structural diagram of a first embodiment of an L-shaped radiator structure of a household energy storage battery PACK according to the present invention; Figure 3 It is a structural diagram of an L-shaped radiator structure of an L-shaped radiator structure of a household energy storage battery PACK described in the present invention; Figure 4 It is a structural diagram of a second embodiment of an L-shaped radiator structure of a household energy storage battery PACK according to the present invention; Figure 5 It is an exploded structural diagram of the second embodiment of the L-shaped radiator structure of a household energy storage battery PACK described in the present invention.

[0016] The following are the descriptions of the reference numerals: 1. PACK shell; 101. Main shell; 102. Cover shell; 103. Heat dissipation holes; 2. Vertical support frame; 3. Battery module; 4. L-shaped radiator; 401. Heat dissipation teeth; 402. Sealing ring groove; 403. Cover shell screw holes; 404. Heat dissipation copper tube; 405. Module fixing screw holes; 406. Heat dissipation support plate; 407. Heat dissipation side plate; 5. Side thermal conductive rubber pad; 6. Bottom thermal conductive rubber pad; 7. Cover shell sealing ring. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Example

[0018] like Figure 1 - Figure 3 As shown, an L-shaped radiator structure of a household energy storage battery PACK includes a PACK shell 1, a battery module 3 and an L-shaped radiator 4.

[0019] At least one group of L-shaped radiators 4 is installed in the PACK shell 1 , and a battery module 3 is installed on each group of L-shaped radiators 4 .

[0020] The L-shaped radiator 4 is an L-shaped frame structure composed of a heat sink 406 and a heat sink side plate 407. The heat sink 406 and the heat sink side plate 407 are both die-cast heat sinks. Heat sink copper tubes 404 are embedded in the heat sink 406 and the heat sink side plate 407. The heat sink copper tubes 404 are embedded in the die-cast heat sink (heat sink 406 and heat sink side plate 407) through a hot pressing process.

[0021] In one embodiment, there are multiple heat dissipation copper tubes 404 embedded in the heat dissipation support plate 406 and the heat dissipation side plate 407 .

[0022] In one embodiment, the L-shaped radiator 4 is integrally formed, or the heat dissipation support plate 406 and the heat dissipation side plate 407 are integrally formed, for example, they can be integrally die-cast; the heat dissipation copper tube 404 embedded in the heat dissipation side plate 407 of the heat dissipation support plate 406 is connected end to end with the same embedded channel, and can also be the same heat dissipation copper tube 404.

[0023] In one embodiment, the arrangement of multiple heat dissipation copper tubes 404 is adapted to the heat density of the battery module 3. For example, the heat dissipation on both sides of the battery module 3 is low, and the heat dissipation in the middle is high, so the arrangement of multiple heat dissipation copper tubes 404 shows a trend of high density in the middle and low density on both sides. For example, the heat dissipation copper tubes 404 are arranged closely or the heat dissipation copper tubes 404 are larger in area at the middle of the heat dissipation support 406 / heat dissipation side plate 407, and the heat dissipation copper tubes 404 are arranged loosely or the heat dissipation copper tubes 404 are smaller in area at the positions on both sides of the heat dissipation support 406 / heat dissipation side plate 407. In one embodiment, the distance between the heat dissipation copper tubes 404 decreases from the middle to the sides, the middle refers to the middle of the heat dissipation support 406 / heat dissipation side plate 407, and the sides refer to the two sides of the heat dissipation support 406 / heat dissipation side plate 407; for another example, if the battery module 3 is heated evenly, the multiple heat dissipation copper tubes 404 are arranged evenly and are of the same size; and so on.

[0024] A heat dissipation tooth group consisting of a plurality of heat dissipation teeth 401 is installed on the outer side of the heat dissipation side plate 407, and a sealing ring groove 402 is provided on the heat dissipation side plate 407 on the side of the heat dissipation tooth group. A cover shell sealing ring 7 is installed in the sealing ring groove 402, which is mainly used to improve the sealing performance and protect the internal battery module 3.

[0025] In this embodiment, two groups of L-shaped radiators 4 are provided and arranged in an upper and lower manner. A vertical support frame 2 is provided between the two groups of L-shaped radiators 4. The vertical support frame 2 is placed under the top L-shaped radiator 4 to support the battery module 3 at the bottom to create a certain distance.

[0026] In this embodiment, a bottom thermal conductive adhesive pad 6 is provided between the heat dissipation support 406 and the battery module 3 , and the bottom thermal conductive adhesive pad 6 is adhered to the heat dissipation support 406 .

[0027] In this embodiment, a side heat-conducting adhesive pad 5 is provided between the heat-dissipating side plate 407 and the battery module 3 , and the side heat-conducting adhesive pad 5 is adhered to the heat-dissipating side plate 407 .

[0028] In this embodiment, the PACK shell 1 is composed of a main shell 101 and a shell cover 102, and the main shell 101 and the shell cover 102 are fixed by fasteners such as screws.

[0029] In this embodiment, a heat dissipation hole 103 is provided on the shell wall of the PACK shell 1 near the heat dissipation tooth 401 , and the heat dissipation tooth 401 extends to the outside of the PACK shell 1 through the heat dissipation hole 103 , thereby improving the heat dissipation efficiency.

[0030] In this embodiment, a module fixing screw hole 405 is provided on the heat dissipation support plate 406 , and the bottom of the battery module 3 is fixed to the module fixing screw hole 405 by screws.

[0031] In this embodiment, the heat dissipation side plate 407 is provided with a cover screw hole 403 , and the cover 102 is fixed to the cover screw hole 403 by screws, so as to fix the L-shaped heat sink 4 . Example

[0032] like Figure 3-5 As shown, an L-shaped radiator structure of a household energy storage battery PACK is composed of a PACK shell 1, a battery module 3 and an L-shaped radiator 4; The difference from the first embodiment is that two groups of L-shaped heat sinks 4 are provided and arranged in a bilaterally symmetrical manner, and the heat dissipation teeth 401 of the two groups of L-shaped heat sinks 4 extend to the outside through the heat dissipation holes 103 on both sides of the PACK shell 1 .

[0033] In one embodiment, the heat dissipation teeth 401 have an overall V-shaped profile and are arranged symmetrically on the left and right.

[0034] In one embodiment, the arrangement of the heat dissipation teeth 401 is adapted to the heat density of the battery module 3. Where the heat of the battery module 3 is high, more heat dissipation teeth 401 are arranged, or are closely arranged, or have a larger area. Where the heat of the battery module 3 is low, fewer heat dissipation teeth 401 are arranged, or are loosely arranged, or have a smaller area.

[0035] In one embodiment, the heat dissipation teeth 401 have bent edges to increase the area of ​​the heat dissipation teeth 401 and enhance the heat dissipation effect; in one embodiment, the heat dissipation teeth 401 with bent edges are arranged at places where the battery module 3 generates high heat.

[0036] In one embodiment, the heat dissipation tooth 401 is thicker near the heat dissipation support 406 / heat dissipation side plate 407, and is thinner away from the heat dissipation support 406 / heat dissipation side plate 407; in another embodiment, the heat dissipation tooth 401 is larger in area near the heat dissipation support 406 / heat dissipation side plate 407, and is smaller in area away from the heat dissipation support 406 / heat dissipation side plate 407.

[0037] In the above two embodiments, the bottom of the L-shaped radiator 4 is fixed to the battery module 3 through the module fixing screw hole 405, the side thermal conductive silicone pad 5 and the bottom thermal conductive silicone pad 6 are respectively tightly attached between the bottom and side surfaces of the L-shaped radiator 4 and the battery module 3 with adhesive, and the cover shell sealing ring 7 is installed in the sealing ring groove 402 around the heat dissipation teeth 401 of the L-shaped radiator 4. The heat dissipation teeth 401 pass through the reserved heat dissipation holes and remain outside the battery PACK to achieve overall sealing and waterproofing.

[0038] The working process of L-shaped radiator 4 is as follows: The temperature of the battery module 3 during the charge and discharge process and the temperature dissipated from the DC / DC optimizer causes the battery module 3 to heat up abnormally. The increased temperature of the battery module 3 is transferred to the L-shaped radiator 4 along the closely attached side thermal conductive silicone pads 5 and bottom thermal conductive silicone pads 6. The thermal conductive silicone pads can better conduct the battery temperature to the heat dissipation copper tube 404 and the L-shaped radiator 4, and transfer the temperature inside the box to the outside of the PACK shell 1 through the heat dissipation teeth 401, thereby achieving the purpose of reducing the overall temperature of the battery module 3.

[0039] The L-shaped radiator directly dissipates heat from the battery module 3, and after being coupled with the battery module 3, it can dissipate heat from the side and bottom of the battery module at the same time, thereby increasing the heat dissipation area and improving the heat dissipation efficiency.

[0040] Those skilled in the art should understand that the present invention is not limited to the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and improvements, and these changes and improvements shall all fall within the scope of the present invention claimed for protection.

Claims

1. An L-shaped radiator structure of a household energy storage battery PACK, characterized in that: It comprises a PACK shell, a battery module and an L-shaped radiator, wherein at least one group of the L-shaped radiators is installed in the PACK shell, and each group of the L-shaped radiators is installed with the battery module, and the L-shaped radiator is an L-shaped frame structure composed of a heat dissipation support plate and a heat dissipation side plate, and a heat dissipation copper tube is embedded on the heat dissipation support plate and the heat dissipation side plate, and a heat dissipation tooth group composed of a plurality of heat dissipation teeth is installed on the outer side of the heat dissipation side plate, and a sealing ring groove is provided on the heat dissipation side plate on the side of the heat dissipation tooth group, and a cover shell sealing ring is installed in the sealing ring groove.

2. The L-shaped radiator structure of a household energy storage battery PACK according to claim 1 is characterized in that: The L-shaped radiators are provided in two groups and arranged in an up-and-down manner, and a vertical support frame is provided between the two groups of L-shaped radiators.

3. The L-shaped radiator structure of a household energy storage battery PACK according to claim 1 is characterized in that: A bottom thermal conductive adhesive pad is provided between the heat dissipation support and the battery module, and the bottom thermal conductive adhesive pad is adhered to the heat dissipation support.

4. The L-shaped radiator structure of a household energy storage battery PACK according to claim 1 is characterized in that: A side heat-conducting adhesive pad is provided between the heat-dissipating side plate and the battery module, and the side heat-conducting adhesive pad is adhered to the heat-dissipating side plate.

5. The L-shaped radiator structure of a household energy storage battery PACK according to claim 1 is characterized in that: The PACK shell consists of a main shell and a shell cover, and the main shell and the shell cover are fixed by screws.

6. The L-shaped radiator structure of a household energy storage battery PACK according to claim 1 is characterized in that: A heat dissipation hole is provided on the shell wall of the PACK shell close to the heat dissipation tooth side, and the heat dissipation tooth extends to the outside of the PACK shell through the heat dissipation hole.

7. The L-shaped radiator structure of a household energy storage battery PACK according to claim 1 is characterized in that: The heat dissipation support is provided with a module fixing screw hole, and the bottom of the battery module is fixedly mounted on the module fixing screw hole by screws.

8. The L-shaped radiator structure of a household energy storage battery PACK according to claim 1 is characterized in that: The heat dissipation side plate is provided with a cover screw hole, and the cover is fixedly mounted on the cover screw hole by screws.

9. The L-shaped radiator structure of a household energy storage battery PACK according to claim 1, characterized in that: The L-shaped radiators are provided with two groups and are arranged in a bilaterally symmetrical manner.

10. The L-shaped heat sink structure of a household energy storage battery PACK according to claim 1, characterized in that: The L-shaped radiator is integrally formed.

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