CN210898605U

CN210898605U - Battery module

Info

Publication number: CN210898605U
Application number: CN201922404403.3U
Authority: CN
Inventors: 李冬梅; 吴卫国; 陆守强
Original assignee: Guangdong Shunde Industrial Design Institute
Current assignee: Guangdong Shunde Industrial Design Institute
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-06-30
Anticipated expiration: 2029-12-27

Abstract

The utility model relates to a battery module, include: a housing; the battery pack is arranged in the shell; the voltage conversion control main board is electrically connected with the battery pack; and the power supply socket is arranged on the outer side of the shell and is electrically connected with the voltage conversion control main board. The utility model discloses a battery module can directly supply power for alternating current apparatus, can effectively promote the convenience of use.

Description

Battery module

Technical Field

The utility model relates to a battery technology field especially relates to a battery module.

Background

With the rise of new green energy, batteries are more and more widely applied in various industries. A plurality of single batteries are combined in series and parallel connection to form a large-capacity battery pack, and the battery pack is structurally packaged to form a battery module. The traditional battery module can not directly supply power for the alternating current electric appliance, and can be used as a power supply source for the alternating current electric appliance after being converted by an external conversion device, so that the use is very inconvenient.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a battery module for solving the problem that the conventional battery module cannot directly supply power to the ac electrical appliance, which results in inconvenient use.

A battery module, comprising:

a housing;

the battery pack is arranged in the shell;

the voltage conversion control main board is electrically connected with the battery pack; and

and the power supply socket is arranged on the outer side of the shell and is electrically connected with the voltage conversion control main board.

The battery module can control the voltage conversion of the battery pack through the voltage conversion control mainboard, and the battery pack is connected with the power supply socket after voltage conversion, so that the power can be directly supplied to an alternating current electric appliance. When the power supply socket is used, a user only needs to plug a power plug of an electric appliance into the power supply socket, and the operation is simple and convenient. The utility model discloses a battery module can directly supply power for alternating current apparatus, can effectively promote the convenience of use.

In one embodiment, the battery pack comprises at least two single batteries, each single battery is connected in series or in parallel through an electrode connecting sheet, and a damping isolation layer is arranged between every two adjacent single batteries.

In one embodiment, the battery module further includes a battery BMS protection main board electrically connected to the battery pack.

In one embodiment, a display is disposed on an outer side of the housing, and the display is electrically connected to the battery BMS protection main board.

In one embodiment, the display comprises a fixing piece, a display screen and a control key, wherein the display screen and the control key are both installed on the fixing piece, and the fixing piece is fixedly connected with the shell.

In one embodiment, a handle member is attached to the outside of the housing.

In one embodiment, the handle member includes a first handle member disposed on opposite sides of the housing and a second handle member pivotally connected to a top surface of the housing.

In one embodiment, the casing includes a casing body and an upper cover, the casing body has a containing cavity with an open top, the battery pack is contained in the containing cavity, the upper cover covers the open end of the casing body, and the upper cover is provided with a wiring port for leading out a positive electrode and a negative electrode of the battery pack.

In one embodiment, the battery module further comprises a base and a fastening plate, wherein a sinking groove for accommodating the bottom of the battery pack is concavely formed in the top surface of the base, the fastening plate is attached to the upper end surface of the battery pack, a groove for allowing an electrode of the battery pack to penetrate out is formed in the fastening plate, and the upper cover is pressed on the fastening plate.

In one embodiment, the side surface of the shell body is provided with a heat dissipation hole.

Drawings

Fig. 1 is a schematic view illustrating an assembly structure of a battery module according to an embodiment of the present invention;

fig. 2 is an exploded view of the battery module shown in fig. 1;

FIG. 3 is a schematic structural view of the housing body of FIG. 2;

fig. 4 is a schematic top view of the housing body of fig. 3.

10. Casing, 11, the casing body, 110, the holding chamber, 111, the louvre, 112, the mounting box, 113, the enhancement post, 12, the upper cover, 121, the wiring mouth, 20, the group battery, 21, the battery cell, 22, the electrode connection piece, 23, utmost point post screw, 30, voltage conversion control mainboard, 40, the power supply socket, 50, battery BMS protection mainboard, 60, the display, 61, the mounting, 62, the display screen, 63, the control key, 71, first handle spare, 72, second handle spare, 80, the base, 90, the mounting panel.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. In the present invention, the terms "first" and "second" do not denote any particular quantity or order, but are merely used to distinguish names.

Referring to fig. 1 and 2, a battery module includes a housing 10, a battery pack 20, a voltage conversion control board 30, and a power supply socket 40. The battery pack 20 is arranged in the shell 10, and the voltage conversion control main board 30 is electrically connected with the battery pack 20; the power supply socket 40 is disposed outside the housing 10, and the power supply socket 40 is electrically connected to the voltage conversion control main board 30.

The housing 10 may be used to provide a main body protection structure for the battery pack 20, and the shape of the housing 10 may be set according to the shape of the battery pack 20, for example, as shown in fig. 2, the battery pack 20 is formed by connecting a plurality of square single batteries 21 in series and parallel, the shape of the battery pack 20 is substantially a rectangular body, and accordingly, the housing 10 is also set as a rectangular body. The voltage conversion control main board 30 is specifically a charging and discharging buck-boost control main board, which realizes the voltage conversion through a charging and discharging buck-boost circuit, and the specific conversion principle thereof is well known to those skilled in the art and will not be described in detail herein. The power supply socket 40 is used for plugging a power plug of an external electrical appliance, and optionally, the power supply socket 40 is provided with two-hole plugging positions and three-hole plugging positions so as to supply power to a plurality of electrical appliances with different plugs.

The battery module can control the voltage conversion of the battery pack 20 through the voltage conversion control main board 30, and the battery pack 20 is connected with the power supply socket 40 after voltage conversion, so that power can be directly supplied to an alternating current electric appliance. When the power supply socket is used, a user only needs to plug a power plug of an electric appliance into the power supply socket 40, and the operation is simple and convenient. The utility model discloses a battery module can directly supply power for alternating current apparatus, can effectively promote the convenience of use.

In one embodiment, the battery pack 20 includes at least two single batteries 21, each single battery 21 is connected in series or in parallel through an electrode connecting sheet 22, and a damping isolation layer is disposed between two adjacent single batteries 21. By arranging the damping isolation layer between two adjacent single batteries 21, the single batteries 21 can be effectively prevented from being mutually extruded and collided, so that the service life of the battery pack 20 is prolonged. Specifically, as shown in fig. 2, the battery pack 20 includes a plurality of square single cells 21 arranged in an array, and electrodes of adjacent square single cells 21 are connected by a copper electrode connecting sheet 22 and locked by a pole screw 23. The specific number and the series-parallel connection form of the single batteries 21 can be set according to actual requirements.

In addition, because each single battery has different performance in each aspect in the traditional battery module, the performance of the single battery is difficult to keep consistent in the charging and discharging process, and potential safety hazards exist. In order to solve the above problem, in one embodiment, as shown in fig. 2, the battery module further includes a battery BMS protection main board 50, and the battery BMS protection main board 50 is electrically connected to the battery pack 20. The battery BMS protection main board 50 is connected to the positive and negative electrodes of the battery pack 20 through the signal control circuit connection, monitors the main circuit and the working state of the entire battery module, and can realize the equalization processing of the single batteries 21 during the charging and discharging process to protect the safety of the entire battery module during the charging and discharging process. The battery BMS protection mainboard 50 can specifically include STM32 main control unit and circuit protection module, and the circuit protection module has short-circuit protection circuit, transships, overcurrent protection circuit to the security of effectual protection battery module.

Further, a display 60 is provided at the outer side of the case 10, and the display 60 is electrically connected to the battery BMS protection main board 50. Specifically, the display 60 can be electrically connected to the battery BMS protection motherboard 50 through the signal control connection, and the performance parameters of the battery module can be monitored and displayed in real time through the display 60, so that the user can know the performance conditions of the battery pack 20 and the battery cells 21 in real time.

Further, as shown in fig. 2, the display 60 includes a fixing member 61, a display 62 and a control key 63, the display 62 and the control key 63 are mounted on the fixing member 61, and the fixing member 61 is fixedly connected to the housing 10. Specifically, the fixing member 61 may be fixedly installed on an inner side wall of the housing 10, a window for exposing the display screen 62 and the control key 63 is formed on the housing 10, and the display screen 62 and the control key 63 are electrically connected to the battery BMS protection main board 50. The user can perform display setting on the monitoring parameter options by operating the control keys 63.

In addition, for some large combined battery packs, the battery packs are usually fixed on a using device, and are difficult to move and transport, and the battery packs need to be disassembled to be transported when necessary, so that the combined battery packs are inconvenient to use. The utility model discloses a battery module is integrated in casing 10 with group battery 20, can carry through removing casing 10. In order to further improve the convenience of moving and carrying the battery module, the outer side of the housing 10 is connected with a handle member, and a user only needs to act on the handle member to move and carry the battery module. In addition, universal wheels and braking members may be further provided at the bottom of the case 10 to further improve the moving convenience of the battery module.

Referring to fig. 1, in one embodiment, the handle member includes a first handle member 71 disposed on two opposite sides of the housing 10, and a second handle member 72 disposed on the top surface of the housing 10, wherein the second handle member 72 is rotatably connected to the housing 10. Specifically, the first handle members 71 can be fastened and fixed to two opposite outer sides of the housing 10 by fasteners, and a user can carry and move the battery module by applying two hands to the first handle members 71 on two sides respectively. Second handle piece 72 is the U type structure of downward open-ended, and the both ends of second handle piece 72 rotationally connect in the top surface of casing 10, can realize 90 upsets and place, and in daily use, the user only needs the one hand to hold second handle piece 72 alright mention the battery module for the battery module can conveniently mention and carry like the suitcase.

Referring to fig. 2 and 3, in an embodiment, the casing 10 includes a casing body 11 and an upper cover 12, the casing body 11 has a receiving cavity 110 with an open top, the battery pack 20 is received in the receiving cavity 110, the upper cover 12 covers the open end of the casing body 11, and the upper cover 12 is provided with a wire connection port 121 for leading out the positive electrode and the negative electrode of the battery pack 20. During assembly, the battery pack 20 is placed in the accommodating cavity 110 of the housing body 11, the upper cover 12 covers the open end of the housing body 11, and the upper cover 12 and the housing body 11 can be locked and fixed through a fastener, so that the assembly is simple and convenient. The upper cover 12 can prevent foreign matters from falling into the electrodes of the single batteries 21, so that the batteries are short-circuited and burnt, and the battery pack 20 can be well protected.

Further, the battery module further comprises a base 80 and a fastening plate 90, a sinking groove for accommodating the bottom of the battery pack 20 is concavely formed in the top surface of the base 80, the fastening plate 90 is attached to the upper end surface of the battery pack 20, a groove for allowing the electrode of the single battery 21 to penetrate out is formed in the fastening plate 90, and the upper cover 12 is tightly pressed on the fastening plate 90. During the assembly, directly paste the heat insulating sheet with each battery cell 21, the combination is placed on base 80, concentrates again and puts into to casing body 11 in, hugs closely the up end of group battery 20 with mounting plate 90, and the inner edge at casing body 11 top is equipped with the female tang that supplies mounting plate 90 overlap joint, locks upper cover 12 again with casing body 11 fixedly, and upper cover 12 can compress tightly mounting plate 90 to make group battery 20 can install in casing 10 steadily.

Further, heat dissipation holes 111 are formed in the side surface of the case body 11 to dissipate heat of the battery pack 20. Optionally, heat dissipation holes 111 may be formed in each side surface of the case body 11, so that the battery module has better heat dissipation performance. The heat dissipation holes 111 may be circular holes, square holes, kidney-shaped holes, and the like.

Alternatively, as shown in fig. 4, a mounting box 112 is provided at an inner side surface of the case body 11 so as to mount the voltage conversion control main board 30 and the battery BMS protection main board 50.

Optionally, the outer circumference of the case body 11 is provided with a reinforcing post 113 to secure the structural strength of the case body 11. For example, as shown in fig. 3, the case body 11 is rectangular, the reinforcing pillars 113 extending vertically are disposed at four corners of the case body 11, and the arc-shaped transition surface is designed to effectively improve the structural rigidity and strength of the case body 11, so as to provide better protection for the battery pack 20 inside.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A battery module, comprising:

a housing;

the battery pack is arranged in the shell;

2. The battery module according to claim 1, wherein the battery pack comprises at least two single batteries, each single battery is connected in series or in parallel through an electrode connecting sheet, and a damping isolation layer is arranged between every two adjacent single batteries.

3. The battery module according to claim 2, further comprising a battery BMS protection main board electrically connected to the battery pack.

4. The battery module according to claim 3, wherein a display is provided at an outer side of the case, and the display is electrically connected to the battery BMS protection main board.

5. The battery module according to claim 4, wherein the display comprises a fixing member, a display screen and a control key, the display screen and the control key are both mounted on the fixing member, and the fixing member is fixedly connected with the housing.

6. The battery module according to claim 1, wherein a handle member is attached to an outer side of the case.

7. The battery module as set forth in claim 6, wherein the handle members include a first handle member disposed on opposite sides of the housing and a second handle member rotatably connected to the top surface of the housing.

8. The battery module according to any one of claims 1 to 7, wherein the housing comprises a housing body and an upper cover, the housing body has a receiving cavity with an open top, the battery pack is received in the receiving cavity, the upper cover covers the open end of the housing body, and the upper cover is provided with wiring ports for leading out positive and negative electrodes of the battery pack.

9. The battery module according to claim 8, further comprising a base and a fastening plate, wherein a sunken groove for accommodating the bottom of the battery pack is concavely formed in the top surface of the base, the fastening plate is attached to the upper end surface of the battery pack, a slot for allowing an electrode of the battery pack to penetrate out is formed in the fastening plate, and the upper cover is pressed against the fastening plate.

10. The battery module according to claim 9, wherein heat dissipation holes are formed in the side surfaces of the case body.