CN211719648U

CN211719648U - Battery pack and battery pack

Info

Publication number: CN211719648U
Application number: CN202020303085.1U
Authority: CN
Inventors: 郭勇; 徐悦斌; 宋鹏元; 武露露; 陈成超; 何巍
Original assignee: Eve Energy Co Ltd
Current assignee: Eve Energy Co Ltd
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2020-10-20
Anticipated expiration: 2030-03-12

Abstract

The utility model relates to a battery pack and battery package, including battery cell and PCB board, battery cell includes fixed bolster and two at least group batteries, and the fixed bolster includes the fixed plate that two parallels and interval set up, and the PCB board sets up in one side of two fixed plates, and the group battery includes two at least batteries, and the both ends of battery are connected with two fixed plates respectively, and the battery dislocation distribution in two adjacent group batteries, and the PCB board is connected with the battery electricity. Through with battery dislocation set and set up the fixed plate at the both ends of battery, have simple structure, compact and space utilization is high characteristics.

Description

Battery pack and battery pack

Technical Field

The utility model relates to a battery field especially relates to a battery pack reaches including this battery pack.

Background

With the increasing development of new energy power, various power batteries are widely applied to various devices. In the existing power battery, a plurality of batteries are connected in parallel and/or in series to form a battery pack, and the battery pack is installed in the equipment. The battery pack mainly includes a plurality of batteries, and a fixing plate and a connecting wire for fixing the batteries. In traditional group battery, for the steadiness of guaranteeing the battery, the spare part that is used for fixed battery is more and the structure is complicated, is unfavorable for improving the space utilization of group battery, and the packaging efficiency of group battery is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery pack and battery package, it has simple structure, compactness and high characteristics of space utilization.

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

the battery pack comprises a battery unit and a PCB (printed circuit board), wherein the battery unit comprises a fixed support and at least two battery packs, the fixed support comprises two parallel fixed plates arranged at intervals, the PCB is arranged on one side of the fixed plates, the battery packs comprise at least two batteries, two ends of each battery are respectively connected with the two fixed plates, the two adjacent fixed plates are adjacent to each other, the batteries in the battery packs are distributed in a staggered mode, and the PCB is electrically connected with the batteries.

Furthermore, an accommodating space for accommodating electronic components is formed between the battery and the PCB, and the electronic components are connected with one side surface of the PCB close to the battery.

Furthermore, one side of the fixing plate, which is close to the battery, is provided with a groove corresponding to the battery, and two ends of the battery are respectively inserted into the corresponding grooves.

Furthermore, the battery unit also comprises a connecting sheet, and the PCB is electrically connected with the battery through the connecting sheet.

Furthermore, the fixing plate is provided with a through hole corresponding to the battery, two ends of the battery are correspondingly inserted into the through hole, the connecting sheet is arranged on one side of the fixing plate, which is far away from the battery, and the two ends of the battery are respectively abutted to the connecting sheet.

Furthermore, the battery unit further comprises an isolation plate, the isolation plate is arranged on one side, away from the battery, of the fixing plate, and the connecting piece is located between the isolation plate and the fixing plate.

Further, the number of the battery units is two or more, and the two or more battery units are stacked in the vertical direction of the fixing plate.

Furthermore, in two of the fixed bolster, one of them the fixed plate is provided with the bellying, and another of them the fixed plate is provided with the equipment hole of bellying grafting cooperation.

Further, the fixing bracket further comprises a fastener, and the fastener is arranged between the two fixing plates.

Also provided is a battery pack including the battery assembly.

The utility model discloses compare in prior art's beneficial effect:

the utility model discloses a battery pack and battery package sets up the fixed plate through setting up the battery dislocation and at the both ends of battery, has simple structure, compactness and high characteristics of space utilization.

Drawings

Fig. 1 is a structural diagram of a battery pack according to an embodiment.

Fig. 2 is a structural view of a battery pack according to another embodiment.

Fig. 3 is a structural view of a fixing bracket of the embodiment.

Fig. 4 is a plan view of the fixing plate of the embodiment.

Fig. 5 is a schematic connection diagram of two battery cells of the embodiment.

In the figure:

1. fixing a bracket; 11. a fixing plate; 110. a through hole; 111. a boss portion; 12. connecting sheets; 13. a fastener; 14. a collar; 2. a battery; 3. a PCB board; 30. an electronic component; 31. a connecting wire; 4. an accommodating space; 5. and (4) a partition board.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.

As shown in fig. 1-5, the utility model provides a pair of battery pack, including battery unit and PCB board 3, battery unit includes fixed bolster 1 and two at least group batteries, and fixed bolster 1 includes two parallel and fixed plates 11 that the interval set up, and PCB board 3 sets up in one side of two fixed plates 11, and the group battery includes two at least batteries 2, and the both ends of battery 2 are connected with two fixed plates 11 respectively, and the dislocation of battery 2 in two adjacent group batteries distributes, and PCB board 3 is connected with battery 2 electricity. In this embodiment, the battery 2 is a cylindrical battery, two or more batteries 2 are connected in parallel to form a battery pack, and the two or more battery packs are fixed by the fixing bracket 1 and form a battery unit. The batteries 2 in the two adjacent battery packs are distributed in a staggered manner, which is beneficial to improving the space utilization rate of the battery unit. The fixing plates 11 are provided at both ends of the battery 2, so that the size of the battery cell in the width direction can be reduced, and the space utilization rate of the battery cell can be improved. This embodiment sets up fixed plate 11 through setting up battery 2 dislocation and setting up at the both ends of battery 2, has simple structure, compactness, characteristics that space utilization is high. Meanwhile, the fixing plate 11 is disposed at the end of the battery 2, so as to facilitate air circulation in the width direction of the battery 2, and further facilitate ventilation and heat dissipation of the battery 2.

Specifically, the number of battery packs and the number of cells 2 in the battery packs may be set according to parameters such as specific output voltages and output currents.

Specifically, a receiving space for receiving the electronic component 30 is formed between the battery 2 and the PCB 3, and the electronic component 30 is connected to a side of the PCB close to the battery 2. It can be understood that, referring to fig. 4, the batteries 20 in two adjacent battery packs are distributed in a staggered manner, and the accommodating space 4 is formed between the battery 2 and the PCB board 3. The electronic component 30 is arranged in the accommodating space 4, so that the gap between the battery 2 and the PCB 3 is fully utilized, and the space utilization rate of the battery unit is further improved. Meanwhile, the electronic component 30 can be accommodated in the fixing support 1, so that the electronic component 30 is prevented from being exposed on one side of the PCB 3 far away from the battery 2, and the size of the battery unit in the width direction is further reduced. Referring to fig. 2, the Y direction in the drawing is the width direction of the battery cell.

Specifically, the battery unit further includes a connection piece 12, and the PCB board 3 and the battery 2 are electrically connected through the connection piece 12. In this embodiment, the connecting sheet 12 is used for connecting the battery 2 and the PCB board 3, the connecting sheets 12 are disposed on the two fixing plates 11, and the electrodes at the two ends of the battery 2 are respectively abutted to the connecting sheets 12 on the two fixing plates 11.

In one embodiment, a groove corresponding to the battery 2 is formed on one side of the fixing plate 11 close to the battery 2, and two ends of the battery 2 are correspondingly inserted into the groove. In this embodiment, be favorable to the connection location between battery 2 and the fixed plate 11 through setting up the recess, improve the assembly steadiness of battery 2. The connecting sheet 12 is arranged at the bottom of the groove, when the end part of the battery 2 is inserted into the groove, the electrode at the end part of the battery 2 is abutted against the connecting sheet 12, and the battery 2 is electrically connected with the PCB 3.

In another embodiment, the fixing plate 11 is provided with a through hole 110 corresponding to the battery 2, two ends of the battery 2 are respectively inserted into the through holes 110, the connecting piece 12 is arranged on one side of the fixing plate 11 far away from the battery 2, and two ends of the battery 2 are respectively abutted against the connecting piece 12. It can be understood that the connecting sheet 12 is used for conducting the PCB 3 and the battery 2, and the connecting sheet 12 is disposed on one side of the fixing plate 11 away from the battery 2 and abutted against the battery 2, so as to fix the battery 2 and conduct the battery 2 and the PCB 3.

In this embodiment, a collar 14 is further disposed on one side of the fixing plate 11 close to the battery 2, the collar 14 is disposed corresponding to the through hole 110, and the collar 14 is communicated with the through hole 110. When the battery 2 is assembled, both ends of the battery 2 are inserted through the collar 14 and the through hole 110, respectively, and abut against the connecting tab 12. By providing the collar 14, the battery 2 is restrained in the width direction, and the stability of the assembly of the battery 2 is improved.

Specifically, the battery unit further includes a separator 5, the separator 5 is disposed on a side of the fixing plate 11 away from the battery 2, and the connecting tab 12 is located between the separator 5 and the fixing plate 11. In this embodiment, the insulating plate 5 is an insulating plate, and a PC board is preferably used. The function of the isolation plate 5 is to isolate the connecting sheet 12 and avoid short circuit and damage of the connecting sheet 12.

In one embodiment, the number of the battery cells is two or more, and the two or more battery cells are stacked in a vertical direction of the fixing plate 11. In this embodiment, the number of the battery cells is two, and the two battery cells are stacked in the vertical direction of the fixing plate 11. Through the battery unit that sets up by range upon range of in the vertical direction of fixed plate 11, can arrange accommodation space 4 in the one side that is close to PCB board 3 to utilize accommodation space 4 to hold electronic components 30 on the PCB board 3, reach the purpose that improves space utilization.

Specifically, two fixing plates 11 in the fixing bracket 1, one fixing plate 11 of the two fixing plates is provided with a protruding portion 111, the other fixing plate 11 of the two fixing plates is provided with an assembling hole in plug-fit with the protruding portion 111, and the assembling of two adjacent battery units can be plugged into the assembling hole through the protruding portion 111. Of course, in other embodiments, other connection manners such as bonding, screwing, or clipping may also be adopted between two adjacent battery units. In this embodiment, the cross section of the protruding portion 111 is triangular, and the protruding portion 111 is disposed in the gap between two adjacent through holes. The triangular shape of the protruding portion 111 is advantageous for utilizing the gap between two adjacent batteries 2, and improves the space utilization rate.

Specifically, the fixing bracket 1 further includes a fastening member 13, and the fastening member 13 is disposed between the two fixing plates 11. In this embodiment, the fastening members 13 are used to fix the fixing plates 11 at both ends of the battery 2, and to confine the battery 2 between the two fixing plates 11, thereby performing a fastening function. Preferably, the fastener 13 is a bolt. After the fixing plates 11 are assembled with the batteries 2, the fixing plates 11 are fixed by fasteners 13.

Specifically, two adjacent cells 2 in the battery pack are disposed at intervals. It can be understood that a gap is left between the batteries 2, which facilitates air circulation around the batteries 2 and facilitates heat dissipation of the batteries 2 during discharging or charging.

Specifically, the PCB board 3 further includes a connection line 31, and the connection line 31 is used for connecting with an external device, so as to electrically connect the external device with the battery 2.

The remarkable effects of the embodiment are as follows: through setting up battery 2 dislocation and set up fixed plate 11 at the both ends of battery 2, have simple structure, compactness, space utilization is high characteristics. Meanwhile, the fixing plate 11 is disposed at the end of the battery 2, so as to facilitate air circulation in the width direction of the battery 2, and further facilitate ventilation and heat dissipation of the battery 2.

The utility model also provides a pair of battery package, including foretell battery pack, this battery package is formed by connecting a plurality of battery pack.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. The utility model provides a battery pack, its characterized in that, includes battery unit and PCB board, battery unit includes fixed bolster and two at least group batteries, the fixed bolster includes the fixed plate that two parallels and interval set up, the PCB board sets up two one side of fixed plate, the group battery includes two at least batteries, the both ends of battery respectively with two the fixed plate is connected, and adjacent two in the group battery the battery dislocation distribution, the PCB board with the battery electricity is connected.

2. The battery pack of claim 1, wherein a receiving space for receiving an electronic component is formed between the battery and the PCB, and the electronic component is connected to a side of the PCB near the battery.

3. The battery assembly according to claim 1, wherein a groove corresponding to the battery is formed in one side of the fixing plate close to the battery, and two ends of the battery are respectively inserted into the corresponding grooves.

4. The battery assembly of claim 1, wherein the battery cell further comprises a connection tab through which the PCB board and the battery are electrically connected.

5. The battery assembly according to claim 4, wherein the fixing plate is provided with a through hole corresponding to the battery, two ends of the battery are correspondingly inserted into the through hole, the connecting sheet is arranged on one side of the fixing plate far away from the battery, and two ends of the battery are respectively abutted against the connecting sheet.

6. The battery pack of claim 4, wherein the battery cell further comprises a separator plate disposed on a side of the fixing plate away from the battery, and the connecting tab is disposed between the separator plate and the fixing plate.

7. The battery pack according to claim 1, wherein the number of the battery cells is two or more, and the two or more battery cells are stacked in a vertical direction of the fixing plate.

8. The battery pack according to claim 7, wherein two of the fixing plates in the fixing bracket are provided with a protrusion, and the other fixing plate is provided with an assembling hole in insertion fit with the protrusion.

9. The battery assembly of claim 1, wherein the fixing bracket further comprises a fastener disposed between the two fixing plates.

10. A battery pack comprising the battery module according to any one of claims 1 to 9.