CN219017858U

CN219017858U - Battery connecting sheet and battery pack

Info

Publication number: CN219017858U
Application number: CN202223285439.2U
Authority: CN
Inventors: 邹建伟
Original assignee: Apower Electronics Co ltd
Current assignee: Apower Electronics Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-05-12
Anticipated expiration: 2032-12-08

Abstract

The utility model belongs to the technical field of conductive connection, and discloses a battery connecting sheet and a battery pack. The battery connection piece comprises a connecting belt and a switching belt. The connecting belt is attached to and connected with the same end of each battery in the length direction; the switching area is dodged the area including first area and the second and dodges, and the area is dodged to first area vertical connection in the one end of connecting band in first direction, and extends to the group battery on the side that the protection shield was located, and the area is dodged to the second and is the contained angle with first area of dodging and link to each other, and is connected in the protection shield. The first area of dodging is drawn forth from the connecting band in the one end of first direction and perpendicular to connecting band extends, in first direction, first area of dodging is located the border position of group battery all the time to avoided the lead wire on the protection shield of setting between two parties, and then made the second dodge the area and also can avoid the lead wire smoothly, avoided taking place the handing-over with the lead wire, promoted the security of battery package.

Description

Battery connecting sheet and battery pack

Technical Field

The utility model relates to the technical field of conductive connection, in particular to a battery connecting sheet and a battery pack.

Background

As shown in fig. 1, in the prior art, adjacent cells 100 are grouped together side by side, and in order to save the space occupied by the assembled battery pack, a protection plate 101 is often provided between two cells 100, and a lead 102 is connected to the protection plate 101 and extends out of the battery pack along the length direction of the cells 100. The series connection or parallel connection of one ends of the adjacent cells 100 in the length direction is realized by the connection of the T-shaped nickel plates 1', and the portions of the T-shaped nickel plates 1' are also bent between the adjacent cells 100 to be connected with the protection plate 101. Thus, the lead 102 comes into contact with the portion of the T-shaped nickel sheet 1', and breakage of the insulating layer of the lead 102 during long-term use may cause a risk of short-circuiting with the T-shaped nickel sheet 1'.

Disclosure of Invention

The utility model aims to provide a battery connecting piece and a battery pack, which can avoid direct contact between the battery connecting piece and a lead of the battery pack and improve the safety of the battery pack.

To achieve the purpose, the utility model adopts the following technical scheme:

the battery connection piece, a plurality of batteries meet side by side along first direction and constitute the group battery, and the protection shield pastes is established the middle part of group battery one side on the second direction, the second direction is perpendicular to first direction, the lead wire is connected the protection shield is in the one end of the length direction of battery, and follow the length direction of battery outstanding in the group battery includes:

the connecting belt is attached to and electrically connected with the same end of each battery in the length direction;

the switching area, including first area and the second of dodging dodges, first dodge the area connect perpendicularly in the one end of connecting band in first direction, and extend to on the group battery on the side at protection shield place, the second dodge the area with first dodge the area and be the contained angle and link to each other, and connect in the protection shield.

As the preferable scheme of the battery connecting sheet, the second avoidance belt is vertically connected with the first avoidance belt.

As the preferred scheme of battery connection piece, the connecting band includes a plurality of connection pieces and connecting strip, each the connection piece interval sets up, and arbitrary adjacent two between the connection piece all through one the connecting strip is connected, each the connection piece with each battery one-to-one, and paste and link on corresponding battery.

As a preferable mode of the battery connecting piece, the first avoidance belt is connected to the connecting piece at one end of the connecting belt in the first direction.

As a preferred embodiment of the battery connecting piece, in the second direction, a width of each connecting piece is larger than a width of each connecting bar.

As the preferable scheme of the battery connecting sheet, each connecting sheet is provided with a spot welding hole.

As a preferable mode of the battery connecting sheet, the spot welding hole is a waist-shaped hole.

As the preferable scheme of battery connection piece, first dodge area with the junction that the area was dodged to the second has the transition chamfer.

As a preferred scheme of the battery connecting piece, the battery connecting piece is an integrated structural piece.

The battery pack comprises a battery, a protective plate and any one of the battery connecting sheets, wherein the battery connecting sheets are used for connecting the battery and the protective plate.

The beneficial effects are that:

according to the battery connecting piece and the battery pack, the connecting bands are attached to the same ends of the batteries in the length direction and are connected with the batteries, the first avoidance bands are vertically connected to one ends of the connecting bands in the first direction and extend to one side surface of the battery pack where the protection plate is located, and the second avoidance bands are connected with the first avoidance bands in an included angle and are connected with the protection plate, so that the connection between the batteries and the protection plate is achieved through the connection of the connecting bands, the first avoidance bands and the second avoidance bands. The first area of dodging is drawn forth from the connecting band in the one end of first direction and perpendicular to connecting band extends, in first direction, first area of dodging is located the border position of group battery all the time to avoided the lead wire placed in middle, and then made the second dodge the area and also avoid the lead wire smoothly, avoided taking place the handing-over with the lead wire, promoted the security of battery package.

Drawings

Fig. 1 is a schematic view of a structure of a battery pack according to the related art;

fig. 2 is a schematic structural view of a battery pack according to an embodiment of the present utility model;

fig. 3 is a schematic structural view of a battery connecting piece according to an embodiment of the present utility model.

In the figure: 1', T-shaped nickel flakes;

100. a battery; 101. a protective plate; 102. a lead wire;

1. a connecting belt; 11. a connecting sheet; 111. spot welding holes; 12. a connecting strip; 2. a transfer belt; 21. a first avoidance zone; 22. and a second avoidance belt.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", "left", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 2, the present embodiment provides a battery pack including a battery 100, a protection plate 101, and a battery connecting piece for connecting the battery 100 and the protection plate 101. Specifically, a plurality of batteries 100 are connected side by side in a first direction to form a battery pack, and a protection plate 101 is attached to the middle of one side of the battery pack in a second direction, which is perpendicular to the first direction. The protective plate 101 is provided with a lead 102, and the lead 102 is connected to one end of the protective plate 101 in the longitudinal direction of the battery 100 and protrudes from the battery pack in the longitudinal direction of the battery 100. In the present embodiment, each battery 100 is a cylindrical battery, and both ends of the cylindrical battery in the length direction are a positive end and a negative end, respectively.

The battery connecting piece provided by the embodiment can avoid the contact between the lead 102 and the battery connecting piece, thereby avoiding the short circuit and improving the safety of the battery pack. Specifically, as shown in fig. 3, the battery connecting piece includes a connecting strap 1 and a transfer strap 2.

As shown in fig. 2 and 3, the connecting band 1 is attached to and connected to the same end of each battery 100 in the longitudinal direction; the connection of the poles of each cell 100 is accomplished to facilitate further connecting each cell 100 in series or parallel.

The switching area 2 is including first area 21 and the second area 22 of dodging, and the first area 21 of dodging is connected perpendicularly in the one end of connecting band 1 in first direction, and extends to the group battery on the side that protection shield 101 was located, and the second is dodged area 22 and is the contained angle with first area 21 and link to each other, and is connected in protection shield 101. That is, the first avoidance belt 21 is led out from one end of the connection belt 1 in the first direction and extends perpendicular to the connection belt 1, in the first direction, the first avoidance belt 21 is always located at the edge position of the battery pack, so that the lead 102 on the centered protection plate 101 is avoided, the second avoidance belt 22 can also avoid the lead 102 smoothly, the connection with the lead 102 is avoided, and the safety of the battery pack is improved.

As shown in fig. 2, in the present embodiment, after the first escape strap 21 extends to the edge of the battery pack in the second direction, it is vertically bent to the side of the battery pack and continues to extend in the longitudinal direction of the battery 100. That is, in the longitudinal direction of the battery 100, the first escape band 21 is kept parallel to the lead 102, and contact between the lead 102 and the first escape band 21 does not occur. Optionally, the second avoidance belt 22 is connected perpendicular to the first avoidance belt 21.

As shown in fig. 1, optionally, the connecting band 1 includes a plurality of connecting pieces 11 and connecting strips 12, each connecting piece 11 is disposed at intervals, any two adjacent connecting pieces 11 are connected by one connecting strip 12, each connecting piece 11 corresponds to each battery 100 one by one, and is attached to the corresponding battery 100. That is, each connection tab 11 is for connection to the electrode terminal of the corresponding battery 100, and the connection bar 12 between the connection tabs 11 is for electrically conductive connection to each connection tab 11. In the present embodiment, two connection pieces 11 are provided, one connection bar 12 is provided, and the connection bar 12 is connected between the two connection pieces 11. In the present embodiment, the first escape strap 21 is connected to the connection piece 11 at one end of the connection strap 1 in the first direction. In this embodiment, each connecting piece 11 is welded to the electrode end of each corresponding battery 100, and the connection is durable and the conductivity is good.

As shown in fig. 2, alternatively, in the second direction, the width of each connecting piece 11 is larger than the width of each connecting bar 12, so that it is convenient for the user to distinguish the positions of the connecting pieces 11 and the connecting bars 12, and further, increasing the width of the connecting pieces 11 is advantageous in making good contact of the connecting pieces 11 with the battery 100. In the present embodiment, the connection piece 11 is approximately a circular piece.

As shown in fig. 3, in order to facilitate welding the connection pieces 11 to the electrode terminals of the corresponding battery 100, spot welding holes 111 are optionally formed in each connection piece 11. In the present embodiment, the spot welding hole 111 is a waist-shaped hole. The length direction of the waist-shaped hole extends along the first direction. When the connecting piece 11 and the electrode terminal of the battery 100 are welded, the long waist-shaped hole is beneficial to improving the welding yield.

As shown in fig. 3, in order to avoid forming sharp points and scratching other parts of the battery pack or scratching an operator, the junction of the first avoidance belt 21 and the second avoidance belt 22 may optionally have a transition chamfer. In this embodiment, the transition chamfer is rounded.

Preferably, the battery connection tab is an integral structural member. That is, the connecting band 1, the first avoidance band 21 and the second avoidance band 22 are integrated into one structural member, which is convenient to use and has high structural strength. In this embodiment, the battery connecting piece is formed by stamping using a die.

Preferably, the battery connection piece is a nickel piece, such as a pure nickel piece or a copper-plated nickel piece. In other embodiments, the battery connecting sheet may be an aluminum-nickel composite sheet or a nickel-plated steel sheet.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. The battery connection piece, a plurality of batteries (100) meet side by side along first direction and constitute the group battery, and protection shield (101) are pasted and are established the middle part of group battery one side in the second direction, the second direction is perpendicular to first direction, lead wire (102) are connected protection shield (101) are in the one end of the length direction of battery (100), and follow the length direction of battery (100) outstanding in the group battery, its characterized in that includes:

a connecting band (1) attached to and connected to the same end of each of the batteries (100) in the longitudinal direction;

the switching area (2), including first area (21) and second of dodging dodges area (22), first dodge area (21) perpendicular connect in connecting band (1) are in one end on the first direction, and extend to on the group battery protection shield (101) place on one side, second dodge area (22) with first dodge area (21) and be the contained angle and link to each other, and connect in protection shield (101).

2. The battery connecting piece according to claim 1, characterized in that the second relief belt (22) is connected perpendicularly to the first relief belt (21).

3. The battery connecting piece according to any one of claims 1-2, wherein the connecting band (1) comprises a plurality of connecting pieces (11) and connecting strips (12), each connecting piece (11) is arranged at intervals, any two adjacent connecting pieces (11) are connected through one connecting strip (12), and each connecting piece (11) corresponds to each battery (100) one by one and is attached to the corresponding battery (100).

4. A battery connection piece according to claim 3, characterized in that the first relief strip (21) is connected to the connection piece (11) at one end of the connection strip (1) in the first direction.

5. A battery connection tab according to claim 3, characterized in that in the second direction the width of each connection tab (11) is greater than the width of each connection bar (12).

6. A battery connection piece according to claim 3, characterized in that each connection piece (11) is provided with spot welding holes (111).

7. The battery connecting piece according to claim 6, characterized in that the spot welding hole (111) is a waist-shaped hole.

8. The battery connection tab according to any one of claims 1-2, characterized in that the junction of the first relief strip (21) and the second relief strip (22) has a transition chamfer.

9. The battery tab of any one of claims 1-2 wherein the battery tab is a unitary structural piece.

10. Battery pack, characterized by comprising a battery (100), a protective plate (101) and a battery connection plate according to any of claims 1-9 for connecting the battery (100) and the protective plate (101).