Household energy storage battery pack

Abstract

The utility model discloses a household energy storage battery pack. The household energy storage battery pack comprises a battery cell module, a box body, radiating fins, a heat conduction assembly and a fan, a mounting cavity is formed in the box body. A battery cell module is mounted in the mounting cavity. The cooling fins are arranged on the side face of the box body and used for guiding out heat on the peripheral side of the box body. The first end of the heat conduction assembly is arranged on the top of the box body. The fan is opposite to the second end of the heat conduction assembly. Heat at the top of the box body is conducted to the fan through the heat conduction assembly, and the fan can blow away heat conducted out by the heat conduction assembly. Heat at the top of the box is conducted to the second end from the first end of the heat-conducting assembly. The fan blows away heat conducted by the heat conduction assembly. And heat on the peripheral side of the box body is conducted to the heat dissipation fins, so that the heat dissipation effect of the household energy storage battery pack is improved, the temperature difference between the inside and the outside of the household energy storage battery pack is reduced, and the service life of a household energy storage battery is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of battery equipment, and particularly relates to a household energy storage battery pack. Background Art

[0002] The household energy storage battery pack adopts the method of stacking battery cells to stack the electric quantity, achieving the effect of flexible expansion at will. However, when the electric quantity of some household energy storage battery packs is large, the number of battery cells in the household energy storage battery pack is large, resulting in a large amount of heat generated by the internal battery cells, and the heat of the household energy storage battery pack cannot be dissipated. In the related art, the heat of the household energy storage battery pack is dissipated by natural heat dissipation, but the heat dissipation effect is poor, resulting in a large temperature difference between the inside and outside of the household energy storage battery pack, thereby shortening the service life of the household energy storage battery pack. Summary of the Utility Model

[0003] The main purpose of the utility model is to provide a household energy storage battery pack, aiming to solve the technical problems that the heat dissipation effect of the household energy storage battery pack is poor, the temperature difference between the inside and outside is large, and the service life of the household energy storage battery pack is shortened.

[0004] In order to achieve the above-mentioned utility model purpose, the first aspect of the utility model proposes a household energy storage battery pack.

[0005] A household energy storage battery pack includes:

[0006] A battery cell module;

[0007] A box body, an installation cavity is formed in the box body, and the battery cell module is installed in the installation cavity;

[0008] Heat dissipation fins, which are arranged on the side surface of the box body;

[0009] A heat conduction component, the first end of which is arranged on the top of the box body; and

[0010] A fan, which is oppositely arranged with the second end of the heat conduction component, the heat at the top of the box body is conducted from the first end of the heat conduction component to the second end, and the fan can blow away the heat at the second end of the heat conduction component.

[0011] In one embodiment, the box body includes a main body and a cover plate, the main body is provided with the installation cavity, the heat dissipation fins are arranged on the side surface of the main body, the heat conduction component is arranged on the cover plate, and the cover plate is detachably covered on the top of the main body.

[0012] In one embodiment, the heat dissipation fins include a first fin and a second fin, the first fin is arranged on one side of the main body, the second fin is arranged on the other side of the main body, and the first fin and the second fin are oppositely arranged.

[0013] In one embodiment, the first fin is horizontally arranged on one side of the box; and / or

[0014] The second fin is horizontally arranged on the other side of the box body.

[0015] In one embodiment, a plurality of the first fins are provided, and the plurality of the first fins are arranged at intervals on one side of the box body along the vertical direction; and / or

[0016] A plurality of the second fins are provided, and the plurality of the second fins are arranged at intervals along the vertical direction on the other side of the box body.

[0017] In one embodiment, the heat conductive component includes a heat conductive member and a heat dissipation patch, the heat dissipation patch is attached to the cover plate, and the first end of the heat conductive member is disposed on a side of the heat dissipation patch away from the cover plate, and the second end of the heat conductive member is disposed opposite to the fan.

[0018] In one embodiment, the heat conducting member is a plate-shaped structure.

[0019] In one embodiment, a partition is provided in the box body, and the partition is used to divide the installation cavity into multiple parts, and multiple battery cell modules are arranged on both sides of the partition;

[0020] A ventilation hole is provided in the partition, and the ventilation hole is used to communicate with the outside.

[0021] In one embodiment, the ventilation holes are extended along the length direction of the partition.

[0022] In one embodiment, a plurality of ventilation holes are provided, and the plurality of ventilation holes are arranged on the partition plate at intervals along the vertical direction.

[0023] In one embodiment, the battery cell module includes a plurality of battery cells, and the plurality of battery cells are horizontally placed and stacked in the installation cavity.

[0024] Beneficial effects:

[0025] In the household energy storage battery pack of the utility model, the heat generated by the battery cell module is dissipated to the top and the surrounding side of the box. The heat on the top of the box is conducted to the fan through the heat conduction component. The fan blows away the heat conducted by the heat conduction component. The heat on the surrounding side of the box is conducted to the heat dissipation fins, thereby improving the heat dissipation effect of the household energy storage battery pack, reducing the temperature difference between the inside and outside of the household energy storage battery, and extending the life of the household energy storage battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an exploded view of a household energy storage battery pack according to an embodiment of the utility model.

[0027] Figure 2 It is a side view of a household energy storage battery pack according to an embodiment of the present utility model.

[0028] Figure 3 It is a schematic structural diagram of a box body and a battery cell module according to an embodiment of the present utility model.

[0029] Figure 4 It is a schematic structural diagram of a box body according to an embodiment of the present utility model.

[0030] Figure 5 It is a schematic structural diagram of a fan and a heat conduction component according to an embodiment of the present utility model.

[0031] Wherein:

[0032] 100, box body; 110, installation cavity; 120, battery cell module; 130, main body; 140, cover plate; 150, bottom plate; 160, partition; 161, ventilation hole;

[0033] 200, heat dissipation fins; 210, first fin; 220, second fin;

[0034] 300, heat conduction component; 310, heat conduction piece; 320, heat dissipation patch;

[0035] 400, fan;

[0036] The realization of the purpose, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific Embodiments

[0037] It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0038] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically and clearly defined.

[0039] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection, a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0041] As Figure 1 shown, in some embodiments, a household energy storage battery pack includes a box body 100. The box body 100 forms the outer shell of the household energy storage battery pack and has a protective effect on the structure inside the box body 100. The box body 100 may be of a square structure.

[0042] As Figure 2 and Figure 3As shown, the household energy storage battery pack includes a battery cell module. An installation cavity 110 is formed in the box body 100. The installation cavity 110 is used for installing a plurality of battery cell modules 120. The heat generated by the battery cell modules 120 diffuses into the installation cavity 110.

[0043] As Figure 2 shown, in some embodiments, the box body 100 includes a main body 130 and a cover plate 140. The cover plate 140 is arranged on the top of the main body 130. The main body 130 is provided with an installation cavity 110, and the heat in the installation cavity 110 can be conducted to the main body 130 and the cover plate 140. Specifically, the cover plate 140 is detachably covered on the top of the main body 130 to facilitate the installation and disassembly of the internal structure of the box body 100.

[0044] Specifically, the box body 100 includes a bottom plate 150. The bottom plate 150 is arranged at the bottom of the main body 130. The bottom plate 150 and the cover plate 140 can be oppositely arranged. The main body 130 is equivalent to the side plate of the box body 100. The bottom plate 150 and the main body 130 can be of an integrally formed structure.

[0045] Specifically, a partition 160 is arranged in the box body 100. The partition 160 is used for dividing the interior of the box body into a plurality of installation cavities 110. A plurality of battery cell modules 120 are arranged on both sides of the partition 160, and the heat generated by the battery cell modules 120 can be conducted to the partition 160.

[0046] Specifically, the partition 160 can be arranged as two. The two partitions 160 divide the box body 100 into three installation cavities 110.

[0047] In some embodiments, ventilation holes 161 are formed in the partition 160. The ventilation holes 161 are used for communicating with the outside. The heat generated by the battery cell modules 120 can be conducted to the outside through the ventilation holes 161, and the heat of the partition 160 can be conducted to the outside through the ventilation holes 161, thereby dissipating heat from the battery cells.

[0048] Specifically, the cross-sectional shape of the ventilation holes 161 can be square to adapt to the square structure of the partition 160.

[0049] Specifically, the ventilation holes 161 are arranged to extend along the length direction of the partition 160, increasing the length of contact between the ventilation holes 161 and the battery cell modules 120, thereby improving the heat dissipation effect of the ventilation holes 161.

[0050] More specifically, a plurality of ventilation holes 161 are provided. The plurality of ventilation holes 161 are arranged at intervals along the vertical direction on the partition 160, further increasing the length of contact between the ventilation holes 161 and the battery cell modules 120, and further improving the heat dissipation effect of the ventilation holes 161.

[0051] As Figure 1As shown, in some embodiments, the household energy storage battery pack includes a heat dissipation fin 200. The heat dissipation fin 200 is arranged on the side of the box body 100. The heat dissipation fin 200 is used to conduct heat around the box body 100, improve the heat dissipation effect of the household energy storage battery pack, and reduce the temperature difference between the inside and outside of the household energy storage battery pack.

[0052] Specifically, the heat dissipation fins 200 are disposed on the side of the main body 130 .

[0053] Specifically, the heat dissipation fins 200 may be a plate-like structure to increase the surface area of the heat dissipation fins 200 and improve the contact area between the heat dissipation surface of the heat dissipation fins 200 and the surrounding air or liquid, thereby improving the heat exchange efficiency.

[0054] like Figure 2 and Figure 4 As shown, in some embodiments, the heat dissipation fin 200 includes a first fin 210 and a second fin 220. The first fin 210 is disposed on one side of the housing 100, and the second fin 220 is disposed on the other side of the housing 100. The first fin 210 and the second fin 220 are disposed opposite to each other.

[0055] Specifically, the first fin 210 is horizontally disposed on one side of the box body 100 , and the second fin 220 is horizontally disposed on the other side of the box body 100 .

[0056] More specifically, a plurality of first fins 210 are provided, and the plurality of first fins 210 are arranged at intervals on one side of the housing 100 along the vertical direction.

[0057] A plurality of second fins 220 are provided, and the plurality of second fins 220 are arranged at intervals on the other side of the housing 100 along the vertical direction.

[0058] In some embodiments, the household energy storage battery pack includes a heat conductive component 300. A first end of the heat conductive component 300 is disposed on the cover plate 140. The heat generated by the battery cell module 120 can be conducted to the first end of the heat conductive component 300 through the cover plate 140.

[0059] like Figure 1 and Figure 5 As shown, in some embodiments, the household energy storage battery pack includes a fan 400. The fan 400 is connected to the other end of the heat conductive component 300. The heat generated by the battery cell module 120 can be conducted from the cover plate 140 to one end of the heat conductive component 300, and then to the other end of the heat conductive component 300, and then blown away by the fan 400.

[0060] In some embodiments, the heat conducting assembly 300 includes a heat conducting member 310 and a heat dissipation patch 320. The heat dissipation patch 320 is attached to the cover plate 140, and the first end of the heat conducting member 310 is disposed on the side of the heat dissipation patch 320 that faces away from the cover plate 140. The second end of the heat conducting member 310 is disposed opposite to the fan 400. That is, the air outlet of the fan 400 faces the second end of the heat conducting member 310 to blow air to the second end of the heat conducting member 310, thereby dissipating the heat on the second end of the heat conducting member 310. Specifically, the second end of the heat conducting member 310 may be provided with a mounting portion 311. The mounting portion 311 is used to mount the fan 400.

[0061] The heat sink 320 can increase the contact area with the cover plate 140 , disperse the concentrated heat to a larger area, and reduce the temperature of the cover plate 140 , thereby protecting the battery module 120 and preventing the battery module 120 from performance degradation or damage due to overheating.

[0062] Specifically, the heat dissipation patch 320 is attached to the cover plate 140. The cover plate 140 is a location where heat is relatively concentrated, and the heat dissipation patch 320 can be arranged to better absorb and conduct heat.

[0063] Specifically, the heat conducting member 310 is a plate-shaped structure, which conducts heat more effectively, thereby improving heat dissipation efficiency.

[0064] Specifically, the heat conducting member 310 is disposed on the cover plate 140 .

[0065] Specifically, the heat conductor 310 can be made of metal. The heat conductor component 310 can serve as a heat conduction path. The heat conductor 310 uses the principle that metal has good thermal conductivity to transfer the heat of the cover plate 140 to the fan 400 in the direction of the thermal conduction path, and can take away the heat of the battery cell through the designed path. In actual operation, the size of the heat sink 320 can be adjusted according to the heat amount of the box 100, and the number of heat sinks 320 can be increased according to the need for thermal conduction.

[0066] It should be noted that the heat generated by the battery module 120 is dissipated to the top and the surrounding side of the box 100. The heat at the top of the box 100 is conducted to the fan 400 through the heat conducting component 300. The fan 400 blows away the heat conducted by the heat conducting component 300. The heat on the surrounding side of the box 100 is conducted to the heat dissipation fins 200. The fan 400 is located above the heat dissipation fins 200 and blows away the heat conducted by the heat dissipation fins 200, thereby improving the heat dissipation effect of the household energy storage battery, reducing the temperature difference between the inside and outside of the household energy storage battery, and extending the life of the household energy storage battery.

[0067] In some embodiments, the battery module 120 includes a plurality of battery cells. The plurality of battery cells are horizontally placed and stacked in the installation cavity 110, thereby reducing the thickness of the household energy storage battery pack. The battery cell may be a soft pack battery cell.

[0068] In the related art, the household energy storage battery pack stacks the battery cells to increase the power. Usually, cylindrical battery cells or square shell battery cells are used. After being assembled into a module, they are placed upright, so that the entire household energy storage battery pack is installed in a floor-standing manner, with a width and length both greater than 300 mm and a large weight, making the entire household energy storage battery pack can only be placed in a floor-standing manner. However, some customers need to install the household energy storage battery pack on the wall. By using the battery cells to assemble the household energy storage, the thickness of the box 100 is reduced, which can not only improve the heat dissipation effect inside the box 100, but also make the thickness of the entire battery module meet the wall-hanging requirements. In addition, by using the battery cells, taking advantage of the advantages of the flat placement of the battery cells and the high volume energy density of the battery cells, the same power as that of the square shell battery cells is achieved while the thickness is greatly reduced. At the same time, combined with the heat dissipation characteristics of the box 100, the temperature difference between the battery cells is small, realizing a household energy storage battery pack with a small volume, a large power, and a small system temperature difference.

[0069] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A household energy storage battery pack, characterized in that, Comprising: Cell module; A box body, an installation cavity is provided in the box body, and the cell module is installed in the installation cavity; Heat dissipation fins, the heat dissipation fins are arranged on the side surface of the box body; A heat conduction component, a first end of the heat conduction component is arranged on the top of the box body; And A fan, the fan is arranged opposite to the second end of the heat conduction component, the heat at the top of the box body is conducted from the first end of the heat conduction component to the second end, and the fan can blow away the heat at the second end of the heat conduction component.

2. The household energy storage battery pack according to claim 1, wherein The box body includes a main body and a cover plate, the main body is provided with the installation cavity, the side surface of the main body is provided with the heat dissipation fins, the cover plate is provided with the heat conduction component, and the cover plate is detachably covered on the top of the main body.

3. The household energy storage battery pack according to claim 2, characterized in that, The heat dissipation fins include a first fin and a second fin, the first fin is arranged on one side of the main body, the second fin is arranged on the other side of the main body, and the first fin and the second fin are arranged opposite to each other.

4. The household energy storage battery pack according to claim 3, wherein, The first fin is horizontally arranged on one side of the box body; and / or The second fin is horizontally arranged on the other side of the box body.

5. The household energy storage battery pack according to claim 3, wherein, A plurality of the first fins are provided, and the plurality of first fins are arranged at intervals in the vertical direction on one side of the box body; and / or A plurality of the second fins are provided, and the plurality of second fins are arranged at intervals in the vertical direction on the other side of the box body.

6. The household energy storage battery pack according to claim 2, wherein, The heat conduction component includes a heat conduction member and a heat dissipation patch, the heat dissipation patch is attached to the cover plate, and a first end of the heat conduction member is arranged on a side of the heat dissipation patch away from the cover plate, and a second end of the heat conduction member is arranged opposite to the fan.

7. The household energy storage battery pack according to claim 6, wherein The heat conduction member is in a plate-like structure.

8. The household energy storage battery pack according to claim 2, characterized in that, A partition is arranged in the main body, and the partition is used for dividing the installation cavity into a plurality of parts, and a plurality of cell modules are arranged on both sides of the partition; Ventilation holes are provided in the partition, and the ventilation holes are used for communicating with the outside.

9. The household energy storage battery pack according to claim 8, wherein, The ventilation holes extend along the length direction of the partition.

10. The household energy storage battery pack according to claim 8, wherein, A plurality of the ventilation holes are provided, and the plurality of ventilation holes are arranged at intervals in the vertical direction on the partition.

11. The household energy storage battery pack according to claim 1, characterized in that, The cell module includes a plurality of cells, and the plurality of cells are horizontally placed and stacked in the installation cavity.

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