CN220400804U

CN220400804U - Battery module and portable power source

Info

Publication number: CN220400804U
Application number: CN202321951945.2U
Authority: CN
Inventors: 王雄华; 孙中伟; 张佛明
Original assignee: Shenzhen Hello Tech Energy Co Ltd
Current assignee: Shenzhen Hello Tech Energy Co Ltd
Priority date: 2023-07-21
Filing date: 2023-07-21
Publication date: 2024-01-26
Anticipated expiration: 2033-07-21

Abstract

The utility model discloses a battery module and a mobile power supply, and relates to the technical field of mobile power supplies. The battery module comprises a first bracket, a second bracket, a plurality of electric cores and a fixed plate, wherein an inserting piece is arranged on the first bracket, an upright post is arranged on the second bracket, inserting grooves are formed in the upright post along the axial direction, the inserting pieces are in one-to-one correspondence with the inserting grooves, and when the second bracket and the first bracket are mutually buckled, the inserting pieces are in inserting fit with the corresponding inserting grooves; the battery cells are positioned in an inner cavity formed by the mutual buckling of the first bracket and the second bracket; the fixed plate set up in the outside of first support with the second support, just first support with the second support all with fixed plate fixed connection. The battery module is small in weight, reduces the volume and reduces the occupied space.

Description

Battery module and portable power source

Technical Field

The utility model relates to the technical field of mobile power sources, in particular to a battery module and a mobile power source.

Background

Under the support of various intelligent electronic equipment, outdoor activities such as camping and shooting become leisure activities of multiple users gradually, in various outdoor activities, people need to use equipment such as computers and ovens which need a large amount of electricity, and a mobile power supply meets the electricity demand of people in various outdoor activities.

However, due to portability of the mobile power supply, the mobile power supply is easy to vibrate or fall down in the use process, so that the internal battery cell is damaged due to vibration. The prior art mainly fixes the battery module by a bolt locking and attaching mode, and has the defects of more space size, increased assembly cost and increased weight of the whole machine.

Aiming at the problems, a battery module and a mobile power supply need to be developed to solve the problems of large occupied space and large weight of the battery module.

Disclosure of Invention

The utility model aims to provide a battery module and a mobile power supply, which are small in weight and small in occupied space.

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

a battery module, comprising:

the first bracket is provided with a plug connector;

the second support is provided with upright posts, the upright posts are provided with inserting grooves along the axial direction, the inserting pieces are in one-to-one correspondence with the inserting grooves, and when the second support and the first support are mutually buckled, the inserting pieces are in inserting fit with the corresponding inserting grooves;

the battery cells are positioned in an inner cavity formed by mutually buckling the first bracket and the second bracket;

the fixed plate, the fixed plate set up in the first support with the outside of second support, just first support with the second support all with fixed plate fixed connection.

In some embodiments, a plurality of reinforcing ribs are arranged between the upright post and the second bracket; and/or

A plurality of reinforcing ribs are arranged between the plug connector and the first bracket.

In some embodiments, the first support and the second support are provided with a plurality of holding grooves at intervals, the holding grooves of the first support and the second support are opposite to each other, and two ends of the battery cell are respectively arranged in the two opposite holding grooves.

In some embodiments, the side wall of the accommodating groove is convexly provided with an abutting boss, the abutting boss extends to the groove bottom of the accommodating groove along the depth direction of the accommodating groove, and the abutting boss abuts against the side wall of the battery cell.

In some embodiments, a plurality of the abutment bosses are convexly arranged on the side wall of the accommodating groove, and the plurality of the abutment bosses are arranged at equal intervals.

In some embodiments, an end of the abutment boss remote from the bottom of the receiving groove is provided with a guide slope that slopes outwardly in a direction away from the bottom of the receiving groove.

In some embodiments, the fixing plate comprises a fixing hole and a waist-shaped hole, the long axis direction of the waist-shaped hole is consistent with the buckling direction of the first bracket and the second bracket, one fastener penetrates through the fixing hole and is connected with the second bracket through threads, and the other fastener penetrates through the waist-shaped hole and is connected with the first bracket through threads.

A mobile power supply comprises a shell and a battery module, wherein the battery module is arranged in the shell.

In some embodiments, the housing includes two shells, the battery module is located two in the inner chamber that the mutual lock of shells formed, and one of two shells is provided with the spliced pole, and another has the jack, the spliced pole with corresponding the jack grafting cooperation.

In some embodiments, the housing is provided with a vent, and a fan is disposed within the housing, the fan facing the vent.

The utility model has the beneficial effects that:

the utility model provides a battery module and a mobile power supply. In this battery module, two supports for fixing the electric core can restrict relative movement through the grafting cooperation of constant head tank and plug connector when the lock, guarantees the relative stability of two supports, and the fixed plate also can further fix two supports simultaneously, guarantees that two supports can not produce relative displacement to the protection electric core.

This battery module improves stability through the grafting cooperation of support self structure and the fixed of fixed plate, does not need additional fixed knot structure such as bolt, and the fixed plate is thinner, and weight is less to reduced whole battery module's weight, and reduced the volume, reduced the space that occupies.

Drawings

FIG. 1 is an exploded view of a portable power source provided by the present utility model;

fig. 2 is a schematic view of a structure of a battery module according to the present utility model;

FIG. 3 is a schematic structural view of a second bracket according to the present utility model;

FIG. 4 is a schematic structural view of a first bracket according to the present utility model;

fig. 5 is a partial enlarged view at a in fig. 3.

In the figure:

100. a housing; 101. a receiving chamber; 102. a plug-in column; 103. a heat dissipation shell; 1031. a vent hole; 104. a fixing groove;

1a, a first bracket; 1b, a second bracket; 2. a plug-in component; 3. a column; 4. a fixing plate; 5. reinforcing ribs; 6. a conductive connection; 7. a confluence member;

11. a receiving groove; 12. abutting against the boss; 13. a guide slope; 14. a connection hole; 15. a first positioning pin; 31. a plug-in groove; 41. a fixing hole; 42. a waist-shaped hole; 43. waist-shaped positioning holes.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, and may be, for example, either fixed or removable; 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 can be understood by those of ordinary skill in the art according to the specific circumstances.

Unless expressly stated or limited otherwise, a first feature being "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact with each other by way of 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.

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

The embodiment provides a portable power source, and this portable power source includes shell and battery module, and battery module includes a plurality of electric core, and the battery module sets up in the shell. The shell can provide protection and support for the battery module, and is convenient for the user to get and put this portable power source.

As shown in fig. 1, the case includes two cases 100 having receiving chambers 101, the two cases 100 being capable of being fastened to each other, and the battery module being located in the receiving chambers 101 of the two cases 100. To ensure relative stability between the two housings 100, one of the two housings 100 is provided with a plug post 102 and the other has a socket into which the plug post 102 is inserted. The peg 102 and socket can improve stability when the two housings 100 are snapped together.

It can be appreciated that the mobile power supply can release heat in the discharging and charging processes, so that the temperature in the housing is increased, and if the heat in the housing 100 cannot be timely released, spontaneous combustion of the mobile power supply is easily caused, and serious damage is generated.

As shown in fig. 1, in order to solve the above-mentioned problems, a vent 1031 is provided in a housing of the portable power source, and a fan is provided in the housing, and the fan faces the vent 1031. When the fan is started, high-temperature gas in the shell can be blown out of the shell through the vent 1031, so that the purpose of heat dissipation is achieved. Specifically, the housing further includes at least one heat dissipation shell 103, the ventilation hole 1031 is formed in the heat dissipation shell 103, the two shells 100 are provided with fixing grooves 104, when the two shells 100 are buckled, the two fixing grooves 104 form the fixing hole 41, the heat dissipation shell 103 is arranged in the fixing hole 41, the two shells 100 and the heat dissipation shell 103 form a complete housing, and the inside and the outside of the housing are communicated only through the ventilation hole 1031.

In various outdoor activities, people need to use equipment such as computers and ovens which need a large amount of electricity, and a mobile power supply meets the electricity requirements of people in various outdoor activities. However, due to portability of the mobile power supply, the mobile power supply is easy to vibrate or fall down in the use process, so that the internal battery cell is damaged due to vibration. The prior art mainly fixes the battery module by a bolt locking and attaching mode, and has the defects of more space size, increased assembly cost and increased weight of the whole machine.

As shown in fig. 1 to 4, the battery module in this embodiment includes a first bracket 1a and a second bracket 1b, a plug connector 2 is disposed on the first bracket 1a, a stand column 3 is disposed on the second bracket 1b, plug grooves 31 are all disposed on the stand column 3 along the axial direction, the plug connector 2 corresponds to the plug grooves 31 one by one, when the second bracket 1b and the first bracket 1a are fastened with each other, the plug connector 2 is in plug fit with the corresponding plug groove 31, and a plurality of battery cells are located in an inner cavity formed by fastening the first bracket 1a and the second bracket 1b with each other.

In the battery module, when the first bracket 1a and the second bracket 1b for fixing the battery core are buckled, the relative movement can be limited through the plug-in matching of the plug-in groove 31 and the plug connector 2, so that the relative stability of the first bracket 1a and the second bracket 1b is ensured.

In the present embodiment, the corners of the first bracket 1a and the second bracket 1b are rounded, which is advantageous for assembly and stress concentration reduction, and prevents corner cracking. The corner of the first bracket 1a is provided with the plug connector 2, the corner of the second bracket 1b is provided with the upright post 3, and the plug connector 2 and the upright post 3 are high in strength and not easy to deform and break because the corner can be supported by two side walls at the same time, so that the stability of the first bracket 1a and the second bracket 1b during buckling can be further improved.

Furthermore, the first bracket 1a and the second bracket 1b can be simultaneously provided with the plug connector 2 and the upright post 3, and when the first bracket 1a and the second bracket 1b are buckled, the plug connector and the upright post can be plugged mutually, so that the positioning is convenient.

Further, a plurality of reinforcing ribs 5 are arranged between the upright post 3 and the second bracket 1b so as to improve the connection strength between the upright post 3 and the bracket 1 and ensure that the upright post 3 cannot deform and break due to collision.

Further, a plurality of reinforcing ribs 5 are also arranged between the plug connector 2 and the first bracket 1a, so that the connection strength between the plug connector 2 and the bracket 1 is improved, and the plug connector 2 is ensured not to deform and break due to impact.

Preferably, the battery module further comprises a fixing plate 4, the fixing plate 4 is arranged on the outer sides of the first bracket 1a and the second bracket 1b, and the first bracket 1a and the second bracket 1b are fixedly connected with the fixing plate 4. The fixing plate 4 can further fix the first bracket 1a and the second bracket 1b, so that the first bracket 1a and the second bracket 1b can not generate relative displacement, and the battery cell is protected.

This battery module improves stability through the grafting cooperation of first support 1a and second support 1b self structure and the fixed of fixed plate 4, does not need additional fixed knot structure such as bolt, and fixed plate 4 is thinner, and weight is less to the weight of whole battery module has been reduced, and the volume is reduced reduces the space that occupies.

Wherein, as shown in fig. 2, alternatively, the fixing plate 4 includes a fixing hole 41 and a waist-shaped hole 42, the long axis direction of the waist-shaped hole 42 is consistent with the buckling direction of the first bracket 1a and the second bracket 1b, one fastener passes through the fixing hole 41 and is connected with the second bracket 1b through screw threads, and the other fastener passes through the waist-shaped hole 42 and is connected with the first bracket 1a through screw threads. The relative position between the second support 1b and the fixed plate 4 is fixed by the fixed hole 41, and the first support 1a can be adjusted along the buckling direction through the waist-shaped hole 42, so that the problem of interference between the fixed plate 4 and the first support 1a and the second support 1b due to processing or assembly errors is avoided on the premise that the first support 1a and the second support 1b can be buckled, and the assembly difficulty is reduced.

The fastening members are fastening screws, one fastening screw passes through the corresponding fixing hole 41 and is in threaded connection with the second bracket 1b, and the other fastening screw passes through the waist-shaped hole 42 and is in threaded connection with the first bracket 1 a.

Further, the second bracket 1b is provided with a first positioning pin 15, the fixing plate 4 is provided with a positioning hole, and the first positioning pin 15 is inserted into the positioning hole to further improve the position accuracy between the second bracket 1b and the fixing plate 4.

It can be understood that the first bracket 1a is provided with a second positioning pin, the fixing plate 4 is provided with a waist-shaped positioning hole 43, the long axis direction of the waist-shaped positioning hole 43 is the same as the long axis direction of the waist-shaped hole 42, and the second positioning pin is inserted into the waist-shaped positioning hole 43 to further improve the position accuracy between the first bracket 1a and the fixing plate 4. The waist-shaped positioning holes 43 can ensure that the first bracket 1a and the second bracket 1b can only relatively move along the buckling direction through the second positioning pins, so that the assembly difficulty is reduced.

As shown in fig. 3 to 5, the first bracket 1a and the second bracket 1b are provided with a plurality of accommodating grooves 11, the accommodating grooves 11 of the first bracket 1a and the second bracket 1b are arranged in a one-to-one opposite manner, and two ends of the battery cell are respectively arranged in the two opposite accommodating grooves 11. Two opposite holding tanks 11 can fix the two ends of the same battery cell simultaneously, prevent the battery cell from shaking in the first bracket 1a and the second bracket 1b, improve the stability of the battery cell, and avoid the adverse effect of impact on the structure of the battery cell.

It will be appreciated that, in order to ensure the stability of the battery cell, the inner diameter of the accommodating groove 11 needs to be equal to or smaller than the outer diameter of the battery cell, so that the dimensional accuracy requirements of the accommodating groove 11 and the battery cell are higher, so as to ensure that the battery cell can be inserted into the accommodating groove 11 and the accommodating groove 11 is in interference fit with the battery cell. If the machining accuracy is poor, the battery cell is liable to be unable to be inserted into the accommodation groove 11.

In order to reduce the requirement for the dimensional accuracy of the accommodating groove 11 and the battery cell, the side wall of the accommodating groove 11 is convexly provided with an abutment boss 12, the abutment boss 12 extends to the bottom of the accommodating groove 11 along the depth direction of the accommodating groove 11, and the abutment boss 12 abuts against the side wall of the battery cell. The abutment boss 12 can further improve the stability of the battery cell in the accommodating groove 11, and prevent the battery cell from shaking. Because the contact area of the abutting boss 12 and the battery cell is far smaller than the contact area of the inner wall of the accommodating groove 11 and the battery cell, the processing precision is easy to control, the fault tolerance rate of errors is higher, and the battery cell can be ensured to be smoothly inserted into the accommodating groove 11.

It is understood that the side wall of the accommodating groove 11 is convexly provided with a plurality of abutment bosses 12, and the plurality of abutment bosses 12 are arranged at equal intervals. Preferably, the number of the abutting bosses 12 is even, the direct distance between the two abutting bosses 12 which are oppositely arranged is smaller than the outer diameter of the battery cell, the plurality of abutting bosses 12 abut against the battery cell along the circumferential direction of the battery cell, the stability of the battery cell in all directions can be ensured, and the requirement on processing precision is far lower than that of the direct contact between the battery cell and the side wall of the accommodating groove 11.

As shown in fig. 5, the end of the abutment boss 12 remote from the bottom of the accommodation groove 11 is provided with a guide slope 13, and the guide slope 13 is inclined outwardly in a direction remote from the bottom of the accommodation groove 11. Because the direct distance of two butt bosses 12 of relative setting is less than the external diameter of electric core, the setting of direction inclined plane 13 can play the guide effect to electric core when inserting holding tank 11 with electric core, and the electric core of being convenient for gets into between two butt bosses 12 of relative setting.

As shown in fig. 2, in order to be able to connect a plurality of cells together, the battery module further includes a plurality of conductive connection members 6 and a bus bar 7, each conductive connection member 6 connecting the same electrode of at least two cells, and the bus bar 7 is electrically connected with the plurality of conductive connection members 6.

In this embodiment, the positive electrode and the negative electrode of the battery cell are respectively located at two ends of the battery cell, so the first bracket 1a and the second bracket 1b are both provided with a conductive connecting member 6 and a bus member 7. Further, the bus bar 7 of the first bracket 1a connects all the conductive connection pieces 6 of the first bracket 1a, and also needs to extend to one side of the bus bar 7 of the second bracket 1b so that both bus bars 7 can be connected to an external circuit.

Wherein, the tank bottom of the holding tank 11 is provided with a connecting hole 14, and the conductive connecting piece 6 is electrically connected with the electrode of the battery cell through the connecting hole 14. The conductive connecting piece 6 and the bus piece 7 of the first bracket 1a are both positioned on one side of the first bracket 1a, which is away from the battery cell, and the conductive connecting piece 6 and the bus piece 7 of the second bracket 1b are both positioned on one side of the second bracket 1b, which is away from the battery cell, so that the first bracket 1a and the second bracket 1b can also play an insulating role between the conductive connecting piece 6 and the battery cell. It is necessary to provide connection holes 14 on the first and second brackets 1a and 1b in order to electrically connect the conductive connection members 6 with the electrodes of the corresponding battery cells.

The foregoing is merely exemplary of the present utility model, and those skilled in the art should not be considered as limiting the utility model, since modifications may be made in the specific embodiments and application scope of the utility model in light of the teachings of the present utility model.

Claims

1. A battery module, comprising:

the first bracket is provided with a plug connector;

2. The battery module according to claim 1, wherein a plurality of reinforcing ribs are provided between the upright and the second bracket; and/or

3. The battery module according to claim 1, wherein a plurality of accommodating grooves are formed in the first bracket and the second bracket at intervals, the accommodating grooves of the first bracket and the second bracket are arranged in a one-to-one opposite mode, and two ends of the battery cell are respectively arranged in the two opposite accommodating grooves.

4. The battery module according to claim 3, wherein the side wall of the receiving groove is convexly provided with an abutment boss extending to the groove bottom of the receiving groove in the depth direction of the receiving groove, the abutment boss abutting against the side wall of the battery cell.

5. The battery module according to claim 4, wherein a plurality of the abutment bosses are provided protruding from a side wall of the receiving groove, the abutment bosses being provided at equal intervals.

6. The battery module according to claim 4, wherein an end of the abutment boss remote from the bottom of the receiving groove is provided with a guide slope that is inclined outwardly in a direction remote from the bottom of the receiving groove.

7. The battery module according to any one of claims 1 to 6, wherein the fixing plate includes a fixing hole and a waist-shaped hole, a long axis direction of the waist-shaped hole is identical to a fastening direction of the first bracket and the second bracket, one fastener passes through the fixing hole and is screwed with the second bracket, and the other fastener passes through the waist-shaped hole and is screwed with the first bracket.

8. A mobile power supply, comprising a housing and the battery module of any one of claims 1 to 7, wherein the battery module is disposed in the housing.

9. The mobile power supply according to claim 8, wherein the housing comprises two shells, the battery module is located in an inner cavity formed by mutually buckling the two shells, one of the two shells is provided with a plug-in post, the other one is provided with a jack, and the plug-in post is in plug-in fit with the corresponding jack.

10. The mobile power supply of claim 8, wherein the housing is provided with a vent, and a fan is disposed within the housing, the fan facing the vent.