CN210136947U - Battery device - Google Patents

Abstract

The utility model provides a battery device contains the battery package to and the electric power connecting rod. The battery pack comprises a battery pack and a battery connecting module, wherein the battery pack is provided with a plurality of batteries, and the battery connecting module is provided with a plurality of busbars which are mechanically and electrically connected with the batteries of the battery pack. The electric power connecting rod is connected in the busbar of battery package, electric power connecting rod has at least two non-flat sections that extend to both ends respectively integratively to and be located at least a flat section between these two non-flat sections, the width of this flat section is greater than the thickness of this flat section, and the maximum width of at least two non-flat sections is less than the width of this flat section and is greater than the thickness of this flat section, and this flat section passes through a narrow and small space that this battery device defined.

Description

Battery device

Technical Field

The utility model relates to a battery device, in particular to battery device with electric power connecting rod.

Background

In general, a stranded cable or a solid conductor wire is often used for electric power connection. For high current devices (such as vehicle batteries), it is more necessary to use a power connection bar with a solid conductor with a large cross-sectional area. The prior art power connection bar has a flat conductor as shown in chinese patent publication No. CN102782900B (corresponding to US patent publication No. US8,998,646), or a conductor with a circular cross section as shown in US patent publication No. US7,591,696B1. Although a conductor having a circular cross section is easily bent in various directions, it cannot pass through a region having a small wiring space. The problem with flat conductors is that they cannot be bent towards a surface extending along their thickness.

SUMMERY OF THE UTILITY MODEL

It is therefore an object of the present invention to provide a battery device having a power connection rod that can improve at least one of the above-mentioned problems of the prior art.

Accordingly, the battery device of the present invention, in some embodiments, includes a battery pack and a power connection rod. The battery pack comprises a battery pack and a battery connecting module, wherein the battery pack is provided with a plurality of batteries, and the battery connecting module is provided with a plurality of busbars which are mechanically and electrically connected with the batteries of the battery pack. The electric power connecting rod is connected in the busbar of battery package, electric power connecting rod has at least two non-flat sections that extend to both ends respectively integratively to and be located at least a flat section between these two non-flat sections, the width of this flat section is greater than the thickness of this flat section, just the maximum width of at least two non-flat sections is less than the width of this flat section and is greater than the thickness of this flat section, and this flat section passes through a narrow and small space that this battery device defined.

In some embodiments, the at least two non-flattened sections are circular in cross-section and the flattened sections are rectangular in cross-section.

In some embodiments, the power connection bar further has a plurality of bends.

In some embodiments, the power connection rod integrally further has two flat connection portions at both ends, respectively.

In some embodiments, the outer surface of the power connection rod is provided with an insulating layer.

In some embodiments, the material of the power connection bar comprises copper metal, and the power connection bar is solid.

In some embodiments, the battery connection module has an insulating carrier plate and a flexible printed circuit board, the plurality of bus bars are floatably disposed on the carrier plate, and the flexible printed circuit board is electrically connected to the plurality of bus bars.

The utility model discloses battery device's electric power connecting rod has the cross section and is the flat section of circular shape non-flat section and cross section for the rectangle, borrows by the flat section can be through the narrow and small space that is used for the wiring in this battery device, makes battery device's component arrange can compacter. And the combination of the non-flat section and the flat section enables the electric connecting rod to have the characteristic of multi-directional bending at the same time.

Drawings

Other features and advantages of the present invention will become apparent from the following detailed description of the preferred embodiments with reference to the accompanying drawings, in which:

fig. 1 is a partial perspective view of an embodiment of a battery device according to the present invention, in which a battery pack of the embodiment is omitted;

fig. 2 is a partial perspective view of the embodiment, in which the battery pack, the frame, and the upper cover of the embodiment are omitted;

FIG. 3 is a perspective view of the power connection rod of this embodiment;

FIG. 4 is a partially exploded view of the power connection rod of this embodiment;

FIG. 5 is an exploded view of the power connection rod of this embodiment, with the connector of the power connection rod omitted;

FIG. 6 is a perspective view of an alternate embodiment of the power connection rod of this embodiment; and

figure 7 is a perspective view of a further alternative embodiment of the power connection rod of this embodiment.

The reference numerals are explained below:

100 battery device

1 Battery pack

11 Battery connection module

111 bearing plate

112 bus bar

112a connection bus bar

113 flexible circuit board

2 frame

3 Upper cover

31 lower recess

4 electric power connecting rod

41 non-flat section

42 flat section

421 first surface

422 second surface

43 Flat connection

44 connector

441 upper case

441a are provided with holes

442 lower casing

442a butt joint part

443 connecting module

443a conductive block

443b block body

443c conducting ring

443d locking part

443e insulating head

443f insulating tail

443g rod body

45 insulating layer

46 bent part

5 line passing region

51 narrow space

D1 front-back direction

D2 vertical direction

D3 left and right direction

Width W

Thickness of T

D outside diameter

Detailed Description

Before the present invention is described in detail, it should be noted that in the following description, like elements are represented by like reference numerals.

Referring to fig. 1 to 2, an embodiment of the battery device 100 of the present invention, for example, suitable for supplying power for a vehicle, the battery device 100 includes two battery packs 1, a frame 2, an upper cover 3, and a power connecting rod 4. It should be noted that the number of the battery packs 1 and the number of the power connection rods 4 can be configured according to the requirement, and should not be limited by the embodiment.

Two battery packs 1 are arranged side by side along a front-rear direction D1, and the battery pack 1 includes a battery pack (not shown) and a battery connection module 11 disposed above the battery pack along an up-down direction D2. The battery pack has a plurality of batteries (not shown), the battery connection module 11 has a carrier tray 111 insulated and extending along a left-right direction D3, a plurality of busbars 112 floatably disposed on the carrier tray 111 and mechanically and electrically connected to the batteries of the battery pack, and a plurality of flexible circuit boards 113 extending along the left-right direction D3 disposed on the carrier tray 111 and mechanically and electrically connected to the plurality of busbars 112, wherein one of the busbars 112 located at the corners of the carrier tray 111 is a connecting busbar 112 a. The frame 2 is disposed on a battery receiving case (not shown) for receiving the battery packs of the two battery packs 1 around the tray 111 of the two battery packs 1, the upper cover 3 covers the battery receiving case and the tray 111 of the two battery packs 1, and the upper cover 3 and the frame 2 together define a wire passing region 5 extending along the front-back direction D1 and for receiving the power connecting rod 4.

Referring to fig. 3 to 5, the power connection rod 4 is connected between the connection bus bars 112a of the two battery connection modules 11 and is disposed in the wire passing region 5 to extend in the front-rear direction D1, thereby connecting the battery packs of the two battery packs 1 to each other. The power connection rod 4 may be made of conductive metal such as copper metal or copper-based metal, and the power connection rod 4 is solid. The power connection rod 4 integrally has two non-flat sections 41 extending to the front and rear ends, a flat section 42 located between the two non-flat sections 41, and two flat connection portions 43 located at the front and rear ends, it should be noted that the number of the non-flat sections 41 may also be more than three, the number of the flat sections 42 located between the non-flat sections 41 may also be more than two, and the number may be adjusted according to design requirements, which is not limited to this embodiment. The width W of the flat section 42 is greater than the thickness T of the flat section 42, and the maximum width of the two non-flat sections 41 is smaller than the width of the flat section 42 and greater than the thickness T of the flat section 42, and in this embodiment, the cross sections of the two non-flat sections 41 are circular, so that the maximum width of the two non-flat sections 41 is the outer diameter D thereof, but in some variations, the cross sections of the two non-flat sections 41 may also be oval or other shapes, and the cross section of the flat section 42 is rectangular, and in detail, the flat section 42 has two first surfaces 421 extending along the width W thereof, and two second surfaces 422 extending along the thickness T thereof and connected to the two first surfaces 421. The wire passing region 5 has a narrow space 51 under a lower recess 31 of the upper cover 3, and the flat section 42 passes through the narrow space 51 of the wire passing region 5, so that the arrangement of the components of the battery device 100 can be more compact by the flat section 42 passing through the narrow space 51 of the battery device 100. In detail, the power connection rod 4

The flat connection portion 43 at the end is provided with a connector 44, and the connector 44 includes an upper case 441 and a lower case 442 assembled to each other in the up-down direction D2, and a connection module 443 accommodated in the upper case 441 and the lower case 442. The connecting module 443 includes a conductive block 443a and a locking member 443D, the conductive block 443a includes a block 443b overlapping the flat connecting portion 43 by welding or the like, and a conductive ring 443c protruding from the block 443b toward the lower casing 442, the locking member 443D is disposed on the conductive block 443a through the block 443b and the conductive ring 443c along the vertical direction D2, and has threads (not shown) formed on the surface of the metal rod 443g, the locking member 443D has an insulating head 443e toward the upper end of the upper casing 441, and has an insulating tail portion 443f toward the lower end of the lower casing 442, the upper casing 441 has an opening 441a through which the insulating head 443e is exposed, the lower casing 442 has a pair of connecting portions 442a formed downward through which the conductive ring 443c and the insulating tail portion 443f extend and are abutted with an insertion portion (not shown) of the connecting bus bar 112a protruding upward, when the docking portion 442a of the connector 44 is docked with the docking portion of the connecting bus 112a, the conductive ring 443c is mechanically and electrically contacted with the docking portion, and the locking member 443d is correspondingly screwed and fixed to the docking portion. However, the connector 44 is only an example, the connector 44 of the power connection rod 4 may be designed according to the requirement, and even in some embodiments, the power connection rod 4 may not have the connector 44, and should not be limited by the embodiment.

In addition, in the present embodiment, the outer surfaces of the non-flat section 41 and the flat section 42 of the power connection rod 4 are provided with an insulating layer 45. The insulating layer 45 may be, for example, an insulating sleeve (e.g., a heat shrinkable insulating sleeve) or an insulating coating formed by coating or spraying, so as to insulate the surfaces of the non-flat section 41 and the flat section 42 of the power connecting rod 4, thereby preventing short circuit.

Referring to fig. 6 and 7, in addition, since the non-flat section 41 and the flat section 42 of the power connection rod 4 can be bent, in some variations, the power connection rod 4 can further have a plurality of bent portions 46 formed on the non-flat section 41 and the flat section 42 to match the spatial configuration of the battery device 100 (see fig. 1). In detail, the two non-flat sections 41 with a circular cross section can be bent in various directions, and the flat section 42 with a rectangular cross section can be bent in the direction of the first surface 421 extending along the width D thereof, so that the non-flat section 41 enables the power connection rod 4 to pass through the narrow space 51 (see fig. 1) and simultaneously has the characteristic of being bent in multiple directions. In addition, it can be understood that the length configurations of the non-flat section 41 and the flat section 42 can also be adjusted according to the requirement, and are not limited by the above embodiments.

To sum up, the utility model discloses battery device 100's electric power connecting rod 4 has the cross section and is circular shape non-flat section 41 and the cross section is the flat section 42 of rectangle, borrows by the flat section 42 can be through the narrow and small space 51 that is used for the wiring in this battery device 100, makes battery device 100's component arrange can be compacter. And the combination of the non-flat section 41 and the flat section 42 enables the power connecting rod 4 to have the characteristic of multi-directional bending at the same time.

However, the above embodiments are only examples of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made according to the claims and the contents of the patent specification are still included in the scope covered by the present invention.

Claims (7)

1. A battery device, comprising:

the battery pack comprises a battery pack and a battery connecting module, wherein the battery pack is provided with a plurality of batteries, and the battery connecting module is provided with a plurality of busbars which are mechanically and electrically connected with the batteries of the battery pack; and

the electric power connecting rod, connect in the busbar of battery package, the electric power connecting rod has at least two non-flat sections that extend to both ends respectively integratively to and be located at least a flat section between these two non-flat sections, the width of this flat section is greater than the thickness of this flat section, just the maximum width of at least two non-flat sections is less than the width of this flat section and is greater than the thickness of this flat section, and this flat section passes through a narrow and small space that this battery device defined.

2. The battery device of claim 1, wherein the at least two non-flattened sections are circular in cross-section and the flattened sections are rectangular in cross-section.

3. The battery device of claim 2, wherein the power connection rod further has a plurality of bends.

4. The battery device according to claim 2 or 3, wherein the power connection rod integrally further has two flat connection portions at both ends, respectively.

5. The battery device of claim 1, wherein an outer surface of the power connection rod is provided with an insulating layer.

6. The battery device of claim 1, wherein the material of the power connection bar comprises copper metal, and the power connection bar is solid.

7. The battery device according to claim 1, wherein the battery connection module has an insulating carrier plate and the flexible printed circuit board, the plurality of bus bars are floatably disposed on the carrier plate, and the flexible printed circuit board is electrically connected to the plurality of bus bars.

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