Household energy storage lithium battery module

Abstract

The utility model discloses a kind of domestic energy storage lithium battery module, comprising: protective cover, current acquisition board, upper cover, electric core, lower cover and several connecting nails, protective cover, current acquisition board, upper cover and lower cover are sequentially arranged from top to bottom, connecting nail is sequentially passed through protective cover, upper cover and lower cover and fixed on an installation surface, upper cover and lower cover form a containing space, electric core is arranged in containing space, electric core is electrically connected with current acquisition board. Through the application of the utility model, a lithium battery module suitable for domestic energy storage is provided, which can be assembled on the installation surface by the connecting nails, the protective cover, the upper cover and the lower cover are relatively convenient and stable, the pole piece between the current acquisition board and the upper cover can be installed along the width direction or the length direction, improving the versatility of the entire battery module. The utility model has low weight and small size, low production cost, long service life, and further improves safety under the cooperation of the current detection unit.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery module technical field especially relates to a domestic energy storage lithium battery module. BACKGROUND

[0002] At present, along with the upgrading of household energy consumption structure and the popularization of intelligent equipment, as the key equipment of household energy storage and management, the performance and optimization and innovative design of domestic energy storage lithium battery module are increasingly concerned by the market.

[0003] In the prior art, the most core part of lithium battery energy storage technology is battery module, most of the lithium battery modules existing in the existing market are applied in new energy automobile and container energy storage industry, but the battery module used in domestic energy storage has limited design scheme. UTILITY MODEL CONTENT

[0004] Therefore, in order to solve the above problems, the utility model provides a domestic energy storage lithium battery module, which comprises a protective cover, a current collection plate, an upper cover, a cell, a lower cover and a plurality of connecting nails.

[0005] In another preferred embodiment, the cell has a width direction and a length direction, the current collection plate is provided with a plurality of pole pieces, one end of the pole piece is electrically connected with the cell, and the other end of the pole piece is arranged to extend outward along the width direction or the length direction.

[0006] In another preferred embodiment, the upper end of the connecting nail has a head, and the head is arranged in abutment with the upper end of the protective cover.

[0007] In another preferred embodiment, the outer edge of the protective cover is provided with a plurality of first guide holes, the outer edge of the upper cover is provided with a plurality of second guide holes, the outer edge of the lower cover is provided with a plurality of third guide holes, and the connecting nails are arranged in sequence through the first guide holes, the second guide holes and the third guide holes.

[0008] In another preferred embodiment, the upper end of the lower cover is provided with a clamping head, and the lower end of the upper cover is provided with a clamping groove, and the clamping head is clamped with the clamping groove.

[0009] In another preferred embodiment, further comprising: a plurality of positioning pins, the outer periphery of the upper cover is provided with a plurality of positioning holes, and the positioning pins pass through the other end of the pole piece and are connected in the positioning holes.

[0010] In another preferred embodiment, the upper surface of the protective cover is provided with a reinforcing rib structure.

[0011] In another preferred embodiment, the reinforcing rib structure is arranged in a honeycomb shape.

[0012] In another preferred embodiment, the outer side of the protective cover is provided with a buckle, and the outer side of the upper cover is provided with a clamping piece, and the buckle and the clamping piece are clamped.

[0013] In another preferred embodiment, the current collection plate is provided with a current detection unit.

[0014] The utility model discloses the above technical scheme is used, and the positive effect compared with prior art is:

[0015] Through the application of the utility model, a lithium battery module suitable for household energy storage is provided, the protective cover, the upper cover and the lower cover can be conveniently and stably assembled on the mounting surface through the connecting nails, the pole piece between the current collection plate and the upper cover can be installed along the width direction or the length direction flexibly, and the universality of the whole battery module is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole installation schematic drawing of a household energy storage lithium battery module of the utility model;

[0017] Figure 2 It is the first schematic drawing of the pole piece arrangement of a household energy storage lithium battery module of the utility model;

[0018] Figure 3 It is the second schematic drawing of the pole piece arrangement of a household energy storage lithium battery module of the utility model.

[0019] In the drawings:

[0020] 1. Protective cover; 2. Current acquisition board; 3. Top cover; 4. Battery cell; 5. Bottom cover; 6. Connecting pin; 7. Electrode; 8. Head; 9. First guide hole; 10. Second guide hole; 11. Third guide hole; 12. Clip; 13. Slot; 14. Positioning bolt; 15. Reinforcing rib structure; 16. Buckle; 17. Clip. Detailed Implementation

[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] It should be noted that the terms "horizontal" and "vertical" in this utility model are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane".

[0024] like Figure 1 The diagram illustrates a preferred embodiment of a household energy storage lithium battery module, comprising: a protective cover 1, a current acquisition board 2, an upper cover 3, a battery cell 4, a lower cover 5, and several connecting pins 6. The protective cover 1, current acquisition board 2, upper cover 3, and lower cover 5 are arranged sequentially from top to bottom. The connecting pins 6 pass through the protective cover 1, upper cover 3, and lower cover 5 sequentially and are fixed to a mounting surface. A receiving space is formed between the upper cover 3 and lower cover 5, and the battery cell 4 is disposed within this receiving space. The battery cell 4 is electrically connected to the current acquisition board 2. Furthermore, the cooperation between the upper cover 3 and lower cover 5 effectively encloses the battery cell 4, resulting in a neat appearance and good overall integrity. Simultaneously, the integrated current acquisition board 2 facilitates the installation of the electrode plates 7 and also provides signal acquisition and detection capabilities, offering excellent protection for the battery cell 4. With the cooperation of the connecting pins 6, the protective cover 1, current acquisition board 2, upper cover 3, and lower cover 5 are fixed as a whole to the mounting surface.

[0025] Furthermore, as a preferred embodiment, the connecting pin 6 is connected to the mounting surface by a thread.

[0026] Further, as a preferred embodiment, the mounting surface is provided by the mounting position of the household energy storage lithium battery module, such as the shell of the battery.

[0027] Further, as a preferred embodiment, the battery cell 4 has a width direction and a length direction, the width direction and the length direction are arranged vertically, and the current collecting plate 2 is provided with a plurality of pole pieces 7, one end of the pole piece 7 is electrically connected with the battery cell 4, and the other end of the pole piece 7 is arranged to extend outward along the width direction or the length direction. Further, the household energy storage lithium battery module can be used as an independent unit to be connected in series and parallel with a plurality of power sources on the mounting surface, and the parallel and series connection is achieved by the connection between the pole pieces 7 of adjacent household energy storage lithium battery modules. In particular, the pole pieces 7 can be selectively arranged along the length direction or the width direction, which has strong flexibility and is suitable for different installation and connection requirements of the battery cell 4.

[0028] Further, as a preferred embodiment, as shown in Figure 2 , the width direction of the battery cell 4 is indicated by the arrow, and at this time, the other ends of the two pole pieces 7 are arranged to extend along the width direction.

[0029] Further, as a preferred embodiment, as shown in Figure 3 , the length direction of the battery cell 4 is indicated by the arrow, and at this time, the other ends of the two pole pieces 7 are arranged to extend along the length direction.

[0030] Further, as a preferred embodiment, a plurality of square holes are formed in the upper cover 3, and the square holes are matched with the positive and negative poles of the battery cell 4, thereby providing space for the installation of the pole pieces 7 while limiting part of the corresponding battery cell 4.

[0031] Further, as a preferred embodiment, the upper end of the connecting nail 6 has a head 8, and the head 8 is arranged to abut against the upper end of the protective cover 1.

[0032] Further, as a preferred embodiment, the outer edge of the protective cover 1 is provided with a plurality of first guide holes 9, the outer edge of the upper cover 3 is provided with a plurality of second guide holes 10, and the outer edge of the lower cover 5 is provided with a plurality of third guide holes 11, and the connecting nail 6 is arranged to pass through the first guide hole 9, the second guide hole 10 and the third guide hole 11 in sequence.

[0033] Further, as a preferred embodiment, the protective cover 1, the upper cover 3 and the lower cover 5 all have a rectangular outer contour, and the corresponding plurality of guide holes are arranged at the four corners thereof.

[0034] Further, as a preferred embodiment, the upper end of the lower cover 5 is provided with a clamping head 12, and the lower end of the upper cover 3 is provided with a clamping groove 13, and the clamping head 12 and the clamping groove 13 are clamped and arranged.

[0035] Further, as a preferred embodiment, the upper cover 3 is provided with a plurality of positioning holes, and the positioning pins 14 pass through the other end of the pole piece 7 and are connected in the positioning holes.

[0036] Further, as a preferred embodiment, the positioning holes are arranged in the horizontal direction.

[0037] The above only describes the preferred embodiment of the utility model, and does not limit the implementation mode and protection scope of the utility model.

[0038] The utility model further has the following implementation modes on the basis of the above:

[0039] In a further embodiment of the utility model, the upper surface of the protective cover 1 is provided with a reinforcing rib structure 15.

[0040] In a further embodiment of the utility model, the reinforcing rib structure 15 is arranged in a honeycomb shape.

[0041] In a further embodiment of the utility model, the upper cover 3, the lower cover 5 and the protective cover 1 are preferably all made of plastic injection molding, and the electric core 4 is preferably a square lithium iron phosphate battery. Further, the service life of the household energy storage lithium battery module is increased, the weight of the module is reduced, the insulation is improved, and the production cost is greatly reduced.

[0042] In a further embodiment of the utility model, the outer side of the protective cover 1 is provided with a buckle 16, and the outer side of the upper cover 3 is provided with a clamping piece 17, and the buckle 16 and the clamping piece 17 are clamped and arranged. Further, the buckle 16 and the clamping piece 17 can be arranged in multiple, and the cooperation of the buckle 16 and the clamping piece 17 provides the fixed connection between the protective cover 1 and the upper cover 3.

[0043] In a further embodiment of the utility model, the current acquisition plate 2 is provided with a current detection unit.

[0044] In a further embodiment of the utility model, the current acquisition plate 2 is mainly made of FR4PCB material, which can better arrange the current direction and better adapt to the welding production process.

[0045] In a further embodiment of the utility model, the upper cover 3 is provided with a limiting point matched with the upper cover 3.

[0046] The above merely describes preferred embodiments of the present application, and is not intended to limit the implementation and protection scope of the present application. For those skilled in the art, it should be understood that any equivalent substitutions and obvious changes made according to the content of the present application description and drawings should be included in the protection scope of the present application.

Claims

1. A home energy storage lithium battery module, characterized by, The utility model relates to a battery pack, including: The protective cover, the electric current collection board, the upper cover and the lower cover are sequentially arranged from top to bottom, the connecting nail passes through the protective cover, the upper cover and the lower cover in turn and is fixed on an installation surface, a containing space is formed between the upper cover and the lower cover, the electric core is arranged in the containing space, and the electric core is electrically connected with the electric current collection board.

2. The household energy storage lithium battery module of claim 1, wherein, The electric core has a width direction and a length direction, a plurality of pole pieces are arranged on the electric current collection board, one end of the pole piece is electrically connected with the electric core, and the other end of the pole piece is arranged and extends outward along the width direction or the length direction.

3. The household energy storage lithium battery module of claim 1, wherein, The upper end of the connecting nail has a head, and the head is arranged in abutment with the upper end of the protective cover.

4. The household energy storage lithium battery module of claim 1, wherein, The outer edge of the protective cover is provided with a plurality of first guide holes, the outer edge of the upper cover is provided with a plurality of second guide holes, the outer edge of the lower cover is provided with a plurality of third guide holes, and the connecting nail passes through the first guide hole, the second guide hole and the third guide hole in turn.

5. The household energy storage lithium battery module of claim 1, wherein, The upper end of the lower cover is provided with a clamping head, the lower end of the upper cover is provided with a clamping groove, and the clamping head and the clamping groove are clamped and arranged.

6. The household energy storage lithium battery module of claim 2, wherein, Further including: A plurality of positioning pegs, the outer periphery of the upper cover is provided with a plurality of positioning holes, and the positioning peg passes through the other end of the pole piece and is connected in the positioning hole.

7. The household energy storage lithium battery module of claim 1, wherein, The upper surface of the protective cover is provided with a reinforcing rib structure.

8. The household energy storage lithium battery module of claim 7, wherein, The reinforcing rib structure is arranged in a honeycomb shape.

9. The household energy storage lithium battery module of claim 1, wherein, The outer side of the protective cover is provided with a buckle, the outer side of the upper cover is provided with a clamping piece, and the buckle and the clamping piece are clamped and arranged.

10. The household energy storage lithium battery module of claim 1, wherein, The electric current collection board is provided with a current detection unit.

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