CN211654884U

CN211654884U - Lithium battery pack

Info

Publication number: CN211654884U
Application number: CN201922499671.8U
Authority: CN
Inventors: 邹翔宇; 张贺鹏
Original assignee: Zhejiang Mingpeng New Energy Technology Co ltd
Current assignee: Zhejiang Mingpeng New Energy Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-09
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to a lithium battery pack relates to the technical field of new forms of energy, has solved circuit board and electrode slice when installing on lithium battery support, and the contact piece is because of the dislocation easily with the electrode contact failure of lithium cell for circuit board and electrode slice need be installed again, lead to the lower problem of packaging efficiency of lithium battery pack, and it includes: the battery comprises a circuit board, an electrode plate and a lithium battery support, wherein a positioning column is integrally arranged on the side wall of the lithium battery support close to the electrode plate, and a positioning hole for the insertion of the positioning column is formed in one side of the electrode plate close to a contact piece; and one end of the positioning column, which is far away from the lithium battery support, is provided with a guide surface. The utility model discloses the efficiency of the equipment of lithium cell package has been improved.

Description

Lithium battery pack

Technical Field

The utility model belongs to the technical field of the technique of the new forms of energy and specifically relates to a lithium cell package is related to.

Background

As shown in fig. 1 and 2, the conventional lithium battery pack includes an upper case 1, a lower case 2, a lithium battery support 3, and a plurality of lithium battery packs 4 mounted in the lithium battery support 3 and a circuit board 5 electrically connected to the lithium battery packs 4; lithium cell group 4 comprises a plurality of lithium cell groups 4, be equipped with the electrode slice 6 with lithium cell 41 one-to-one on circuit board 5, one side an organic whole that electrode slice 6 is close to circuit board 5 is equipped with insertion piece 61, set up the jack 51 that supplies insertion piece 61 to peg graft on circuit board 5, insertion piece 61 welds on circuit board 5, electrode slice 6 is close to lithium cell 41's an organic whole bending type and is shaped and has contact piece 62, lithium cell support 3's both sides have all been seted up and have been supplied contact piece 62 to inlay the hole 311 of establishing of inlaying, contact piece 62 inlay locate inlay establish in the hole 311 and with lithium cell 41's electrode connection.

The above prior art solutions have the following drawbacks: when the circuit board and the electrode plate are installed on the lithium battery support, the contact pieces are easy to be in poor contact with the electrodes of the lithium battery due to dislocation, so that the circuit board and the electrode plate need to be installed again, the assembly efficiency of the lithium battery pack is low, and an improved space is provided.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a lithium cell package has improved the packaging efficiency of lithium cell package.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a lithium battery pack comprises a circuit board, an electrode plate and a lithium battery support, wherein a positioning column is integrally arranged on the side wall of the lithium battery support close to the electrode plate, and a positioning hole for the insertion of the positioning column is formed in one side of the electrode plate close to a contact piece;

and one end of the positioning column, which is far away from the lithium battery support, is provided with a guide surface.

By adopting the technical scheme, when the electrode plate is installed, the electrode plate can be positioned through the inserting connection of the positioning column and the positioning hole, the contact pieces are not prone to dislocation, the contact pieces are not prone to poor contact with the electrodes of the lithium battery due to dislocation, the circuit board and the electrode plate can be installed in place at one time, repeated installation is not needed, and the assembling efficiency of the lithium battery pack is improved.

The present invention may be further configured in a preferred embodiment as: the lithium battery support is provided with a limiting column on one side close to the circuit board, a limiting hole is formed on one side of the electrode plate close to the insertion sheet, and the limiting column is inserted in the limiting hole.

Through adopting above-mentioned technical scheme, spacing post is pegged graft in spacing downthehole, carries on spacingly to the electrode slice, makes the difficult emergence dislocation of electrode slice, has improved the stability of electrode slice when using.

The present invention may be further configured in a preferred embodiment as: the positioning column is provided with a clamping ring on the outer side wall away from the lithium battery support in an integrated mode, and the clamping ring abuts against one side, away from the lithium battery support, of the electrode plate.

Through adopting above-mentioned technical scheme, the setting of joint ring makes the electrode slice be difficult for breaking away from the reference column when the unmanned operation, makes electrode slice and reference column be connected more firmly.

The present invention may be further configured in a preferred embodiment as: the lithium battery bracket comprises a first bracket body and a second bracket body;

one side of the first frame body close to the second frame body is integrally provided with at least two insertion blocks, and the second frame body is provided with insertion holes for the insertion blocks to be inserted.

Through adopting above-mentioned technical scheme, first support body and second support body are tentatively fixed through pegging graft of grafting piece and spliced eye when the equipment, simple structure, easy dismounting, the practicality is strong.

The present invention may be further configured in a preferred embodiment as: one end of the insertion block, which is far away from the first frame body, is provided with a guide surface.

Through adopting above-mentioned technical scheme, the setting of guide face makes things convenient for the grafting piece to aim at with the spliced eye when installing in the spliced eye to guide the grafting piece to peg graft in the spliced eye, improved the efficiency that the grafting piece was pegged graft in the spliced eye.

The present invention may be further configured in a preferred embodiment as: the both ends of first support body are all integrative to be equipped with the buckle, an organic whole is equipped with the joint piece with the buckle joint on the second support body.

Through adopting above-mentioned technical scheme, make first support body and second support body can fix through the joint of buckle with the joint piece when the equipment, simple structure, easy dismounting, the practicality is strong.

The present invention may be further configured in a preferred embodiment as: the edges and corners of the clamping blocks close to the first frame body are provided with guide inclined planes.

Through adopting above-mentioned technical scheme, the setting on direction inclined plane, the guide buckle takes place elastic deformation and joint on the joint piece to the direction of keeping away from first support body, and need not the manual work and orders about the buckle and take place elastic deformation to the direction of keeping away from first support body, and easy operation has improved the packaging efficiency of first support body with the second support body.

The present invention may be further configured in a preferred embodiment as: the utility model discloses a support frame, including first support body, second support body, first support body is close to one side an organic whole of second support body and is equipped with at least one first spliced pole, an organic whole is equipped with the second spliced pole that corresponds and be concentric setting with first spliced pole on the second support body, first spliced pole passes through the fix with screw on the second spliced pole.

Through adopting above-mentioned technical scheme, first spliced pole passes through the fix with screw on the second spliced pole, makes first support body and second support body be connected more firmly.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the assembly efficiency of the lithium battery pack is improved;

2. first support body and second support body can be fixed through the joint of buckle with the joint piece when the equipment, simple structure, easy dismounting, the practicality is strong.

Drawings

Fig. 1 is an exploded view of an upper case, a circuit board, a lithium battery support, and a lower case of a conventional lithium battery pack.

Fig. 2 is an exploded view of electrode tabs and a lithium battery support of a conventional lithium battery pack.

Fig. 3 is an exploded view of the upper case, circuit board, lithium battery support, and lower case of a lithium battery pack.

Fig. 4 is an exploded view of the electrode tab and the lithium battery support.

Fig. 5 is an enlarged view of a portion a in fig. 4.

Fig. 6 is an enlarged view of a portion B in fig. 4.

Fig. 7 is an enlarged view of a portion C in fig. 4.

Fig. 8 is an enlarged view of a portion D in fig. 4.

Fig. 9 is a first schematic view of the first frame and the second frame exploded.

Fig. 10 is an enlarged view of a portion E in fig. 9.

Fig. 11 is an enlarged view of portion F in fig. 9.

Fig. 12 is an enlarged view of a portion G in fig. 9.

Fig. 13 is an exploded view of the first frame and the second frame.

In the figure, 1, an upper shell; 2. a lower housing; 3. a lithium battery support; 31. a first frame body; 311. embedding holes; 312. a positioning column; 3121. a guide surface; 3122. a snap ring; 313. a limiting column; 314. an insertion block; 3141. a base pillar; 3142. inserting sheets; 3143. a guide surface; 315. buckling; 316. a first connecting column; 32. a second frame body; 321. inserting holes; 322. a clamping block; 3221. a guide slope; 323. a second connecting column; 4. a lithium battery pack; 41. a lithium battery; 5. a circuit board; 51. a jack; 6. an electrode sheet; 61. a plug-in sheet; 62. a contact piece; 63. positioning holes; 64. and a limiting hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 3, a lithium battery pack disclosed by the present invention includes an upper case 1, a lower case 2, a lithium battery bracket 3, a circuit board 5, a lithium battery pack 4, and an electrode plate 6; lower casing 2 passes through fix with screw on last casing 1, goes up casing 1 and casing 2 down and is formed with the cavity, and lithium cell group 4 comprises a plurality of lithium cell 41, and lithium cell 41 installs on lithium cell support 3, and lithium cell support 3 installs in the cavity, and circuit board 5 installs in one side that lithium cell support 3 is close to last casing 1, and electrode slice 6 installs on circuit board 5 and is connected with lithium cell 41's electrode.

Referring to fig. 4 and 5, an insertion sheet 61 is integrally arranged at one end of the electrode plate 6 close to the circuit board 5, a jack 51 for inserting the insertion sheet 61 is formed on the circuit board 5, and the insertion sheet 61 is inserted into the jack 51 and then welded on the circuit board 5; the electrode plate 6 is integrally bent to form a contact piece 62, the lithium battery support 3 comprises a first support body 31 and a second support body 32, embedding holes 311 are respectively formed in one end of the first support body 31, which is far away from the second support body 32, and one end of the second support body 32, which is far away from the first support body 31, and the contact piece 62 is embedded in the embedding holes 311 and connected with the electrode of the lithium battery 41; the end of the first frame body 31 away from the second frame body 32 and the end of the second frame body 32 away from the first frame body 31 are integrally provided with a positioning column 312.

Referring to fig. 6, a positioning hole 63 is formed in one side of the electrode plate 6 close to the contact sheet 62, and the positioning post 312 is inserted into the positioning hole 63 to facilitate positioning when the electrode plate 6 is installed; one end of the positioning column 312, which is away from the first frame body 31, is provided with a guide surface 3121, the guide surface 3121 may be arranged in a rounded corner surface shape, or in a conical surface shape, where the guide surface 3121 is preferably a rounded corner surface; still integrative joint ring 3122 that is equipped with on the lateral wall of reference column 312, the radial cross-section semicircular in shape of reference column 312 is followed to joint ring 3122, and joint ring 3122 and electrode slice 6 joint to make electrode slice 6 be difficult for breaking away from reference column 312.

Referring to fig. 3 and 7, the first frame body 31 and the second frame body 32 are integrally provided with a limiting post 313 on one side close to the circuit board 5, and in combination with fig. 8, a limiting hole 64 is formed on one side of the electrode plate 6 close to the insertion sheet 61, and the limiting post 313 is inserted into the limiting hole 64, so that the insertion sheet 61 of the electrode plate 6 is not easily separated from the circuit board 5 due to external force dragging.

Referring to fig. 9 and 10, at least two insertion blocks 314 are integrally arranged on one side of the first frame body 31 close to the second frame body 32, the insertion blocks 314 may be cylindrical or square-cylindrical, and here, the insertion blocks 314 include a base column 3141 and four insertion pieces 3142; the base pillar 3141 is integrally arranged on one side of the first frame body 31 close to the second frame body 32, and the insertion sheets 3142 are integrally arranged on the outer side wall of the base pillar 3141 and are uniformly distributed along the circumferential direction; an insertion hole 321 is formed in the second frame body 32, the insertion sheet 3142 is inserted into the insertion hole 321, and a guide surface 3143 is disposed at a corner of the insertion sheet 3142 away from the first frame body 31 to facilitate alignment of the insertion sheet 3142 when inserted into the insertion hole 321 and guide the insertion sheet 3142 to be inserted into the insertion hole 321.

Referring to fig. 9 and 11, two ends of the first frame 31 are integrally provided with a buckle 315, and the buckle 315 is integrally provided at one side of the first frame 31 close to the second frame 32; referring to fig. 12, the two ends of the second frame 32 are integrally provided with a clamping block 322, and the buckle 315 is clamped on the clamping block 322 to facilitate the initial fixation of the first frame 31 and the second frame 32 during installation; the edge of the joint block 322 close to the first frame 31 is provided with a guiding inclined plane 3221, so that the first frame 31 and the second frame 32 are assembled, the guiding buckle 315 generates elastic deformation in the direction far away from the first frame 31, and the buckle 315 is not required to be pulled by hand to generate elastic deformation in the direction far away from the first frame 31, thereby facilitating the assembly of the first frame 31 and the second frame 32.

Referring to fig. 9 and 13, at least one first connection column 316 is integrally disposed on one side of the first frame body 31 close to the second frame body 32, the number of the first connection columns 316 is preferably two, a second connection column 323 corresponding to the first connection column 316 and concentrically disposed with the first connection column 316 is integrally disposed on one side of the second frame body 32 close to the first frame body 31, and the second connection column 323 is fixed on the first connection column 316 through a screw.

The implementation principle of the embodiment is as follows:

when the electrode plate 6 is installed, the positioning can be performed through the insertion of the positioning column 312 and the positioning hole 63, so that the contact sheet 62 is not easy to be dislocated, and further the contact sheet 62 is not easy to be badly contacted with the electrode of the lithium battery 41 due to the dislocation; first support body 31 and second support body 32 carry out tentatively fixed through buckle 315 and joint piece 322's joint when the equipment, and simple structure conveniently further fixes first support body 31 and second support body 32 through the screw.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a lithium battery pack, includes circuit board (5), electrode slice (6) and lithium cell support (3), its characterized in that: a positioning column (312) is integrally arranged on the side wall, close to the electrode plate (6), of the lithium battery support (3), and a positioning hole (63) for the positioning column (312) to be inserted is formed in one side, close to the contact piece (62), of the electrode plate (6);

and one end of the positioning column (312), which is far away from the lithium battery support (3), is provided with a guide surface (3121).

2. A lithium battery pack as claimed in claim 1, characterized in that: the lithium battery support is characterized in that a limiting column (313) is integrally arranged on one side, close to the circuit board (5), of the lithium battery support (3), a limiting hole (64) is formed in one side, close to the insertion sheet (61), of the electrode sheet (6), and the limiting column (313) is inserted into the limiting hole (64).

3. A lithium battery pack as claimed in claim 1, characterized in that: the outer side wall, away from the lithium battery support (3), of the positioning column (312) is integrally provided with a clamping ring (3122), and the clamping ring (3122) abuts against one side, away from the lithium battery support (3), of the electrode plate (6).

4. A lithium battery pack as claimed in claim 1, characterized in that: the lithium battery bracket (3) comprises a first bracket body (31) and a second bracket body (32);

one side of the first frame body (31) close to the second frame body (32) is integrally provided with at least two insertion blocks (314), and the second frame body (32) is provided with insertion holes (321) for the insertion blocks (314) to be inserted.

5. A lithium battery pack as claimed in claim 4, characterized in that: one end of the insertion block (314) far away from the first frame body (31) is provided with a guide surface (3143).

6. A lithium battery pack as claimed in claim 4, characterized in that: both ends of first support body (31) are all integrative to be equipped with buckle (315), an organic whole is equipped with joint piece (322) with buckle (315) joint on second support body (32).

7. A lithium battery pack as claimed in claim 6, characterized in that: the corner of the clamping block (322) close to the first frame body (31) is provided with a guide inclined surface (3221).

8. A lithium battery pack as claimed in claim 4, characterized in that: first support body (31) are close to one side an organic whole of second support body (32) and are equipped with at least one first spliced pole (316), second support body (32) are gone up an organic whole and are equipped with second spliced pole (323) that correspond with first spliced pole (316) and be concentric setting with first spliced pole (316), first spliced pole (316) are fixed in on second spliced pole (323) through the screw.