CN113206320A

CN113206320A - Battery pack and electric equipment

Info

Publication number: CN113206320A
Application number: CN202110474873.6A
Authority: CN
Inventors: 李坤龙
Original assignee: Dongguan Poweramp Technology Ltd
Current assignee: Dongguan Poweramp Technology Ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-08-03
Anticipated expiration: 2041-04-29
Also published as: CN113206320B

Abstract

The embodiment of the application relates to a battery pack and electric equipment, wherein the battery pack comprises a battery bin and a battery module. The battery compartment is provided with a first space, a first opening, a second opening and a channel. The passage communicates with the first opening and the second opening, respectively. The battery module is arranged in the first space. The heat generated by the work of the battery module is taken out through the channel, and the performance of the battery pack is improved.

Description

Battery pack and electric equipment

Technical Field

The embodiment of the application relates to the technical field of batteries.

Background

The scooter is one of the products of skateboard sports. The scooter is suitable for various ages due to moderate speed, easy learning and operation and a brake device. For example, for office workers, using a scooter on some short-range route is undoubtedly a trendy, fun and practical way. For example, for teenagers, the scooter is rather a good choice, many teenagers have one scooter for their best, and the scooter has a good exercise effect for the well developed balance system of teenagers. Generally, a scooter is provided with a battery module.

In the process of implementing the present application, the applicant of the present application finds that: at present, the battery module of scooter can produce the heat at the during operation, and the heat is gathered in the scooter and is influenced the performance of scooter easily, and user experience is not good.

Disclosure of Invention

In view of the above problem, the embodiment of the application provides a group battery and consumer, thereby improves the technical problem that the battery module produced heat and gathers in the scooter and influences the performance of scooter.

According to an aspect of an embodiment of the present application, there is provided a battery pack including: battery compartment and battery module. The battery compartment is provided with a first space, a first opening, a second opening and a channel, and the channel is communicated with the first opening and the second opening. The battery module is installed in the first space. The channel is arranged in the first space of the battery pack, so that the temperature of the battery module can be reduced, and the performance of the battery pack is good.

In an alternative form, the battery compartment includes a first top wall, a first side wall, and a first bottom wall; the first top wall, the first side wall and the first bottom wall jointly form the first space; the first top wall and the first bottom wall are arranged at intervals along a first direction. The first opening is disposed on the first sidewall. When the battery pack moves, wind enters the first space from the first opening and flows in the channel s, so that the battery module in the first space is cooled, and the cooling effect is good.

In an alternative form, the first opening includes a first portion and a second portion; the channel s comprises a first channel and a second channel; the first channel is positioned on the first top wall and is communicated with the first part and the second opening; the second channel is located at the first bottom wall, and the second channel is communicated with the second part and the second opening. Through establishing first passageway and second passageway at the battery compartment to the radiating effect to the group battery is good.

In an alternative mode, the first side wall includes a first wall, the first opening is disposed in the first wall, and an included angle between the first wall and the first bottom wall is an obtuse angle. So that more wind can be introduced into the duct while the battery pack is moving. In addition, the included angle between the first top wall and the first bottom wall is an obtuse angle, so that the battery pack is not easy to enter the first space from the first opening when in use, and the service life of the battery module in the first space is long.

In an alternative mode, the included angle between the first portion and the first top wall is an obtuse angle, and one end, close to the first top wall, of the first portion faces the first top wall. Therefore, when the wind blowing to the first top wall is guided towards the first top wall, more wind can enter the channel s from the first part, and therefore the heat dissipation effect of the battery pack is good. In addition, the end of the first portion close to the first top wall faces the first top wall, so that when entering the first portion, foreign matters such as dust will slide out of the battery compartment along the first portion, that is, the foreign matters such as dust are not easy to enter the first space from the first portion, thereby affecting the service life of the battery module.

In an alternative mode, the included angle between the second portion and the first bottom wall is an obtuse angle. Therefore, when the wind blowing to the first top wall is guided towards the first bottom wall, more wind can enter the channel s from the second part, and therefore the heat dissipation effect of the battery pack is good. In addition, the end of the second part close to the first bottom wall faces the first top wall, so that when entering the second part, foreign matters such as dust will slide out of the battery compartment along the second part, namely, the foreign matters such as dust are not easy to enter the first space from the second part, thereby affecting the service life of the battery module.

In an optional mode, first diapire still is equipped with first through-hole, through first through-hole, and the filth in the first space of being convenient for is discharged from first through-hole, and the battery module in the first space receives the influence of filth little.

In an alternative mode, the first through hole is communicated with the second channel, so that the dirt in the first space can be discharged from the first through hole more conveniently

In an optional mode, first lateral wall includes the second wall, second wall and first wall set up along the second direction relatively, the second passageway is followed second direction L extends to even have ponding can also follow recess and first through-hole to discharge in the first space, the battery module receives the erosion of filth such as water to be few, battery module's long service life.

In an alternative form, the first top wall includes a first recess formed with the first channel, and the first bottom wall includes a second recess formed with the second channel.

In an alternative form, the battery pack further includes a filter screen covering the first opening. Through establishing the filter screen, then in foreign matter such as dust is difficult to get into first space to the long service life of the battery module in the first space.

In an optional mode, the battery module includes a battery case and a plurality of battery cells, the battery case is provided with a second space, and the plurality of battery cells are stacked in the second space along the second direction. The battery case comprises a first support and a second support, the first support and the second support are oppositely arranged along the third direction, the first support is provided with a first cavity, the second support is provided with a second cavity, and the second space comprises the first cavity and the second cavity; the battery cell part is arranged in the second cavity, the battery cell part is arranged in the first cavity, and the lug is arranged in the first cavity. Therefore, the battery cell can be incompletely accommodated by the first support and the second support, namely, one part of the battery cell is exposed, so that on one hand, the battery shell is made of few materials, on the other hand, the exposed part of the battery cell is convenient to dissipate heat, on the other hand, the vacant positions of the first support and the second support in the third direction can be used by other parts of the battery pack, and the space utilization rate of the battery pack is high.

In an optional mode, the battery module further comprises a first circuit board, and the first circuit board is connected with the tab; the first circuit board is superposed with the plurality of battery cells along the third direction, the first circuit board is close to the tab, and the first circuit board is contained in the first cavity. The battery module has a compact structure and occupies a small space.

In an alternative, the first circuit board is a BMS board.

In an optional mode, the battery pack further includes a functional module and a second circuit board, the functional module is disposed in the first space, and the second circuit board is disposed in the first cavity; the second circuit board is overlapped with a surface, away from the battery core, of the first circuit board along the third direction; the second circuit board is electrically connected with the first circuit board and the functional module. The second circuit board is used for controlling the functional module, and the first circuit board is used for controlling charging and discharging of the battery cell and the like. The second circuit board and the first circuit board are stacked, so that reasonable utilization of the limited space in the battery compartment of the battery pack can be realized.

In an optional mode, the battery pack further comprises a first insulating member, the first insulating member is formed by arranging resin in the first cavity and then curing, and the waterproof and dustproof performance of the battery module can be enhanced by arranging the first insulating member.

In an optional mode, the battery cell further comprises an electrode assembly, an encapsulation shell and a tab; the packaging shell comprises a containing part and a first edge sealing part formed by extending outwards from the containing part, and the electrode assembly is arranged in the containing part; the part of the accommodating part is arranged in the first cavity, and the part of the accommodating part is arranged in the second cavity; one end of the tab is connected with the electrode assembly, and the other end of the tab extends out of the first edge sealing portion along the third direction. The first insulating piece wraps the part, at the extending part of the pole lug, of the packaging shell, and the first sealing edge part is wrapped by the first insulating piece. Through the first insulating part, the waterproof and dustproof performance of the battery module is excellent.

In an alternative mode, along the third direction, a vacant position is formed between the first support and the second support; a portion of the receptacle is disposed in the void. That is, the electrode assembly is partially faced to the vacant sites, and the electrode assembly is radiated through the vacant sites, so that the heat radiation performance of the battery pack is good.

In an optional mode, the battery pack further includes a second insulating member, the second insulating member is located in the vacant position, and the second insulating member is abutted to the battery core and the battery compartment, respectively. The second insulating part is arranged in the vacant position, so that the collision between the battery cell and the inner surface of the first space is relieved, and the battery cell is not easy to damage.

In an optional mode, the second bracket is provided with a sixth opening communicated with the second cavity, so that the heat dissipation performance of the battery cell is good.

In an optional mode, the battery pack further includes a third insulating member, the third insulating member is disposed in the sixth opening, and the third insulating member is respectively abutted to the electric core and the battery compartment, so that the collision between the electric core and the inner surface of the first space is relieved, and the electric core is not easily damaged.

According to an aspect of the embodiments of the present application, there is provided a power consuming apparatus including the above battery pack.

In an alternative mode, the electric device includes a scooter, and the first opening is an air inlet along a traveling direction of the scooter. The scooter is when marcing, and wind gets into the scooter from first opening, reduces the temperature of the battery module in the scooter, and the performance of scooter is good.

The beneficial effects of the embodiment of the application are that: the battery pack and the electric equipment are provided, a first space is arranged in a battery compartment of the battery pack and used for accommodating a battery module, a channel is arranged on the inner surface of the first space, a first opening and a second opening are arranged in the battery compartment, the first opening and the second opening are communicated with the channel, so that wind can enter the first space from the first opening and acts on the battery module along the channel, heat generated by the battery module during working can be dissipated from the second opening, and the heat dissipation performance of the battery pack is good. The group battery is applied to for example this consumer of scooter, then the heat that the group battery produced is difficult to the gathering, and user experience is good.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

Fig. 1 is a schematic view of a battery pack provided in an embodiment of the present application;

fig. 2 is a schematic view of another direction of the battery pack provided in the embodiment of the present application

FIG. 3 is a cross-sectional view taken along line P1P1 of FIG. 1 as provided by an embodiment of the present application;

fig. 4 is an exploded schematic view of a battery pack provided in an embodiment of the present application;

fig. 5 is an exploded schematic view of a battery compartment provided in an embodiment of the present application;

FIG. 6 is an enlarged schematic view of portion A of FIG. 3 according to an embodiment of the present disclosure;

fig. 7 is a schematic view of a first bottom wall of a battery compartment provided by an embodiment of the present application;

fig. 8 is a schematic view illustrating a lead wire connected to a battery module according to an embodiment of the present disclosure;

fig. 9 is a schematic diagram of a partial explosion of a battery pack provided in an embodiment of the present application;

fig. 10 is a schematic diagram of a cell provided in an embodiment of the present application;

fig. 11 is a schematic view illustrating a battery module according to an embodiment of the present disclosure, to which a second insulating member and a third insulating member are coupled;

FIG. 12 is a cross-sectional view taken along line P2P2 of FIG. 11 according to an embodiment of the present application;

fig. 13 is a schematic view illustrating a connection relationship between a functional module and a battery module according to an embodiment of the present disclosure;

fig. 14 is a schematic view of an electric scooter provided in an embodiment of the present application.

Detailed Description

In order to facilitate an understanding of the present application, the present application is described in more detail below with reference to the accompanying drawings and specific embodiments. 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 be present. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, a battery pack 100 includes a battery compartment 1 and a battery module 2. The battery compartment 1 is provided with a first space 11s, a first opening 111, and a second opening 121. The battery case 1 is provided with a passage 12s, one end of the passage 12s is communicated with the first opening 111, and the other end of the passage 12s is communicated with the second opening 121. The battery module 2 is provided in the first space 11 s. The battery module 2 dissipates heat through the first opening 111, the second opening 121 and the channel 12s, so that the temperature of the battery pack 100 is reduced, and the performance of the battery pack 100 is improved. In some embodiments, the first opening 111 is used for the air inlet, the second opening 121 is used for the air outlet, and the channel 12s is used for the air passage.

Referring to fig. 3, 4 and 5, the battery compartment 1 includes a first top wall 11, a first side wall 12 and a first bottom wall 13. The first top wall 11 and the first bottom wall 13 are both connected to the first side wall 12. The first top wall 11, the first side wall 12, and the first bottom wall 13 collectively form a first space 11 s. The first opening 111 is provided in the first sidewall 12.

The first sidewall 12 is provided with the first opening 111, so that when the battery pack 100 is installed in an external device and the external device moves, wind can enter the first space 11s from the first opening 111 and flow in the channel 12s, and thus the heat of the battery module 2 in the first space 11s is dissipated, and the heat dissipation effect is good.

In some embodiments, the first opening 111 includes a first portion 1111 and a second portion 1112. The passages 12s include a first passage 12s1 and a second passage 12s 2.

In some embodiments, the first top wall 11 includes a first recess 112, the first recess 112 is formed with a first passage 12s1, and the first passage 12s1 communicates with the first portion 1111 and the second opening 121. The first bottom wall 13 includes a second recess 133, the second recess 133 being formed with a second passage 12s2, the second passage 12s2 communicating with the second portion 1112, the second opening 121, respectively. Alternatively, the end of the first recess 112 extending to the first ceiling wall 11 in the direction opposite to the second direction L2 forms the second opening 121. Alternatively, the second opening 121 is formed by the end of the second recess 133 extending to the first bottom wall 13 in the direction opposite to the second direction L2.

In some embodiments, the first sidewall 12 is provided with a first wall 123 and a second wall 122 spaced apart along the second direction L2, and the first opening 111 is provided in the first wall 123. Optionally, a second opening 121 is provided in the second wall 122 (not shown). Optionally, the second opening 121 is provided in the first top wall 11. Wherein the second direction L2 is perpendicular to the first direction L1.

In some embodiments, the first wall 123 forms an obtuse angle with the first bottom wall 13, which is beneficial to reduce the speed of the wind entering the channel 12s and reduce the influence of the wind on the battery pack 100. In addition, when the battery pack 100 is used, for example, rainwater or the like is unlikely to enter the first space 11s from the first opening 111, and the battery module 2 in the first space 11s has a long service life.

In some embodiments, referring to fig. 3 and 6, the first portion 1111 is disposed adjacent to the first top wall 11, and the second portion 1112 is disposed adjacent to the first bottom wall 13. One end of the first part 1111, which is close to the first top wall 11, faces the first top wall 11, and the wind direction F1 is adjusted by the first part 1111, which is beneficial to reduce the speed of the wind entering the first channel 12s1 and reduce the influence of the wind on the battery pack 100. When foreign matters such as dust enter the first portion 1111, the obliquely arranged first portion 1111 facilitates the foreign matters to move from the second portion 1111 to the outside of the battery compartment 1 under the action of gravity, and restricts the foreign matters such as dust from entering the first space 11s from the first portion 1111, thereby affecting the use of the battery module 2.

In some embodiments, referring to fig. 6, an included angle between the second portion 1112 and the first bottom wall 11 is an obtuse angle, one end of the second portion 1112 close to the first bottom wall 13 faces the first top wall 11, and the wind direction F1 is adjusted by the second portion 1112, so as to reduce the speed of the wind entering the second channel 12s2 and reduce the influence of the wind on the battery pack 100. When foreign matters such as dust enter the second portion 1112, the obliquely arranged second portion 1112 facilitates the foreign matters to move from the second portion 1112 to the outside of the battery compartment 1 under the action of gravity, and the foreign matters such as dust are prevented from entering the first space 11s from the second portion 1112, thereby influencing the use of the battery module 2.

In some embodiments, referring to fig. 3 and 4, the battery pack 100 includes the filter screen 5, the filter screen 5 is disposed in the first space 11s, the filter screen 5 covers the first opening 111, and foreign matters such as dust are blocked by the filter screen 5, so as to further limit the dust from entering the first space 11s, which is beneficial to prolonging the service life of the battery module 2.

Referring to fig. 5, the first passage 12s1 extends along the second direction L2. In some embodiments, the number of the first passages 12s1 is plural, and a plurality of the first passages 12s1 are juxtaposed on the first bottom wall 13 along a third direction L3, wherein the third direction L3 is perpendicular to the second direction L2, and the third direction L3 is perpendicular to the first direction L1. In some embodiments, the third direction L3 is parallel to the first bottom wall 13.

Referring to fig. 5, the second channel 12s2 extends along the second direction L2. In some embodiments, the number of the second passages 12s2 is plural, and a plurality of the second passages 12s2 are juxtaposed in the third direction L3 on the first bottom wall 13.

In some embodiments, referring to fig. 5 and 7, the battery pack 100 includes a first through hole 131 penetrating through the first bottom wall 13, wherein the first through hole 131 is communicated with the second channel 12s2, so that foreign matters and the like in the first space 11s can be discharged from the first through hole 131, and the service life of the battery module 2 is long. Optionally, the number of the first through holes 131 is plural, and the plural first through holes 131 are distributed in the plural second passages 12s2, so that the foreign matter discharging effect of the first through holes 131 is good.

In some embodiments, referring to fig. 8 and 9, the battery module 2 includes a battery case 21 and a plurality of battery cells 22, the battery case 21 is provided with a second space 21s, and the plurality of battery cells 22 are stacked in the second space 21s along a second direction L2. When the passage 12s extends along the second direction L2, the heat dissipation effect of the wind entering the first space 11s on the plurality of battery cells 22 is relatively uniform.

In some embodiments, referring to fig. 10, the battery cell 22 includes an electrode assembly (not shown), a packaging case 221, and a tab 222, where the packaging case 221 includes a receiving portion 2211 and a first sealing portion 2212 extending outward from the receiving portion 2211, the electrode assembly is received in the receiving portion 2211, one end of the tab 222 is connected to the electrode assembly, and the other end of the tab 222 extends out from the first sealing portion 2212. The other end of the tab 222 protrudes from the first sealing portion 2212 in the third direction L3.

It is understood that each cell 22 has two electrically opposite tabs 222.

The accommodating portion 2211 includes a second side wall 2211a and a third side wall 2211b, the second side wall 2211a is connected to the first sealing portion 2212, the third side wall 2211b is connected to the first sealing portion 2212, and the second side wall 2211a and the third side wall 2211b are disposed at two opposite sides of the first sealing portion 2212. The first sealing portion 2212 and the second side wall 2211a form a third recess 2211c, the first sealing portion 2212 and the third side wall 2211b form a fourth recess 2211d, the third recess 2211c is substantially L-shaped, and the fourth recess 2211d is substantially L-shaped. In this embodiment, the first sealing portion 2212 is disposed at the center of the accommodating portion 2211, and the length w1 of the second side wall 2211a and the length w2 of the third side wall 2211b are substantially the same along the second direction L2. In other embodiments, the first sealing portion 2212 is disposed at other positions of the accommodating portion 2211, and the length w1 of the second side wall 2211a is different from the length w2 of the third side wall 2211b along the second direction L2.

The accommodating portion 2211 further extends outward to form a second sealing portion 313 and a third sealing portion 314, the second sealing portion 313 and the third sealing portion 314 are oppositely arranged, the second side wall 2211a, the third side wall 2211b and the first sealing portion 2212 are connected with the second sealing portion 313, and the second side wall 2211a, the third side wall 2211b and the first sealing portion 2212 are connected with the third sealing portion 314.

In some embodiments, referring to fig. 9, the battery case 21 includes a first bracket 211 and a second bracket 212, the first bracket 211 and the second bracket 212 are disposed opposite to each other along a third direction L3, the first bracket 211 has a first cavity 2111, the second bracket 212 has a second cavity 2121, and the second space 21s includes a first cavity 2111 and a second cavity 2121. The accommodating portion 2211 of the battery cell 22 is partially disposed in the second cavity 2121, the accommodating portion 2211 of the battery cell 22 is partially disposed in the first cavity 2111, and the tab 222 is disposed in the first cavity 2111. The battery module 2 further includes a first circuit board 23, and the first circuit board 23 is connected to the tab 222. The first circuit board 23 is stacked on the plurality of battery cells 22 along the third direction L3, the first circuit board 23 is close to the tab 222, and the first circuit board 23 is accommodated in the first cavity 2111. The second circuit board 4 is also received in the first cavity 2111. The second circuit board 4 is overlapped with a surface of the first circuit board 23 away from the battery cell 22 along the third direction L3, and the second circuit board 4 is electrically connected to the first circuit board 23.

The second circuit board 4 is configured to control the functional module 3, the first circuit board 23 is configured to control charging and discharging of the plurality of battery cells 22, and the second circuit board 4 and the first circuit board 23 are stacked, so that a limited space in the battery compartment 1 of the battery pack 100 can be reasonably utilized.

Wherein, in some embodiments, the first circuit board 23 is a BMS board.

The tabs 222 of the battery cells 22 are connected to the first circuit board 23. In some embodiments, the second circuit board 4 has a third opening 41, the first circuit board 23 has a fourth opening 231, and the tabs 222 of the battery cells 22 respectively penetrate through the first circuit board 23 after being connected to the first circuit board 23 at the fourth opening 231, and are connected to the second circuit board 4 at the third opening 41.

It can be understood that the number of the fourth openings 231 is the same as the number of the tabs 222, or the number of the fourth openings 231 is two, and the two fourth openings 231 are respectively used for connecting the two tabs 222 of the electrical cells 22 which are opposite in electrical property. Of course, the number of the third openings 41 is the same as that of the tabs 222, or the number of the fourth openings 231 is two, and the two openings are respectively used for connecting the two tabs 222 of the electric cells 22 with opposite electrical properties. Of course, the number of the fourth openings 231 may be the same as the number of the tabs 222, and the number of the third openings 41 may be two.

In some embodiments, the tabs 222 of the battery cells 22 may be individually connected to the first circuit board 23 at the fourth opening 231, or a plurality of tab 222 of the battery cells 22 may be connected to the first circuit board 23 at the fourth opening 231.

In some embodiments, the tabs 222 of the cells 22 may be individually connected to the second circuit board 4 at the third opening 41, or a plurality of tabs 222 of the cells 22 may be connected to the second circuit board 4 at the third opening 41.

In some embodiments, the third opening 41 and the fourth opening 231 may both limit the tab 222.

In some embodiments, referring to fig. 9, the first circuit board 23 further has a fifth opening 232, the second circuit board 4 extends the electronic component toward the first circuit board 23, and the electronic component passes through the fifth opening 232. When the electronic components on the second circuit board 4 pass through the fifth opening 232, the gap between the tab 222 and the tab 222 can be utilized to realize the reasonable application of the second space 21s, and the size of the battery module 2 in the third direction L3 is not increased due to the arrangement of the electronic components in the third direction L3. In other words, the capacity of the battery module 2 can be expanded in the third direction L3.

In some embodiments, referring to fig. 9, 11 and 12, the battery module 2 further includes a first insulating member 24, the first insulating member 24 is formed by disposing resin in the first cavity 2111 and then curing, the first insulating member 24 wraps the portion of the tab 222 extending out of the package case 221, the first circuit board 23 and the second circuit board 4, the tab 222, and the portion of the tab 222 electrically connected to the first circuit board 23 are wrapped by the first insulating member 24, so that the battery module 2 is waterproof and antifouling, dirt in the battery compartment 1 is discharged through the first through hole 131, and the performance of the battery module 2 is good. The relative positions of the tab 222, the first circuit board 23 and the second circuit board 4 are fixed through the first insulating member 24, so that the relative displacement among the tab 222, the first circuit board 23 and the second circuit board 4 is reduced, and further the abrasion of the tab 222, the first circuit board 23 and the second circuit board 4 is reduced. In addition, the waterproof performance of the battery module 2 can be enhanced by providing the first insulating member 24.

In some embodiments, the first insulator 24 also wraps the end of the cell 22 near the tab 222. That is, the first insulating member 24 wraps the accommodating portion 2211 of the battery cell 22 near one end of the tab 222, so as to further enhance the waterproof performance of the battery module 2.

Optionally, the first insulator 24 includes a potting compound.

In some embodiments, referring to fig. 8, a space 211s is provided between the first support 211 and the second support 212 along the third direction L3. A portion of the accommodating portion 2211 of the battery cell 22 is provided in the vacant site 211s, that is, a portion of the electrode assembly provided in the accommodating portion 2211 is provided in the vacant site 211s, thereby facilitating heat dissipation of the electrode assembly.

Battery pack 100 still includes second insulator 6, and second insulator 6 is located vacancy 211s, and second insulator 6 and a plurality of electric cores 22, battery compartment 1 butt, through establishing second insulator 6, then the collision between electric core 22 and the battery compartment 1 is slowed down, and electric core 22 is difficult to be impaired.

It can be understood that the second insulating member 6 wraps the plurality of battery cells 22, and the second insulating member 6 is correspondingly disposed in the accommodating portion 2211 of the battery cell 22.

The second insulating member 6 may be foam, rubber, or pressure sensitive adhesive, among others.

In some embodiments, referring to fig. 9, the second bracket 212 has a sixth opening 2122 communicating with the second cavity 2121 to facilitate heat dissipation of the battery cell 22. The battery pack 100 further includes a third insulating member 7, the third insulating member 7 is disposed at the sixth opening 2122, and the third insulating member 7 abuts against the battery cell 22 and the battery compartment 1, so that the collision between the battery cell 22 and the battery compartment 1 is buffered, and the battery cell 22 is not easily damaged.

The third insulating member 7 may be foam, rubber, or pressure sensitive adhesive, among others.

The battery pack 100 further includes a functional module 3, and referring to fig. 9 and 13, the functional module 3 is connected to the second circuit board 4. In some embodiments, the functional module 3 is overlapped with the battery module 2 in the second direction L2, and the functional module 3 is connected to the second circuit board 4 through the conductive wire 31.

In the embodiment of the present application, the battery pack 100 includes a battery case 1 and a battery module 2. The battery compartment 1 is provided with a first space 11s, a first opening 111, and a second opening 121. The first space 11s is provided with a passage 12s, and the passage 12s communicates with the first opening 111 and the second opening 121, respectively. The battery module 2 is mounted in the first space 11 s. Through establishing passageway 12s in first space 11s at group battery 100, establish first opening 111 and second opening 121 at group battery 100 to accessible first opening 111, passageway 12s and second opening 121 dispel the heat to battery module 2, are favorable to reducing the temperature of battery module 2, and the performance of group battery 100 is good.

Referring to fig. 14, the electric device 200 includes a battery pack 100. For the specific structure and function of the battery pack 100, reference may be made to the above embodiments, and details are not repeated here.

The electric equipment comprises a scooter which is provided with a front wheel 8 and a rear wheel 9. The battery compartment 1 is a scooter body 1s, and the front wheel 8 and the rear wheel 9 are respectively arranged at two ends of the scooter body 1 s. The first top wall 11 of the battery compartment 1 is a pedal 1s1 of the scooter. The automobile body 1s of scooter acts as battery compartment 1 and protects battery module 2, has improved scooter's space utilization.

The advancing direction of scooter is along second direction L2, and second wall 122 and first wall 123 set gradually along second direction L2, and first wall 123 is located to first opening 111, and second opening 111 is the air intake along the advancing direction of scooter to the scooter is when advancing, and wind gets into first space 11s from first opening 111, thereby is favorable to reducing the temperature of the battery module 2 in the scooter, and the performance of scooter is good.

The battery pack 100 may be an unmanned aerial vehicle, a sweeping robot, or the like.

It should be noted that the description of the present application and the accompanying drawings set forth preferred embodiments of the present application, however, the present application may be embodied in many different forms and is not limited to the embodiments described in the present application, which are not intended as additional limitations to the present application, but are provided for the purpose of providing a more thorough understanding of the present disclosure. Moreover, the above-mentioned technical features are combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope described in the present specification; further, modifications and variations may occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the scope of the appended claims.

Claims

1. A battery pack, comprising:

the battery compartment is provided with a first space, a first opening, a second opening and a channel, and the channel is communicated with the first space, the first opening and the second opening;

the battery module is arranged in the first space.

2. The battery pack according to claim 1,

the battery compartment comprises a first top wall, a first side wall and a first bottom wall, wherein the first top wall, the first side wall and the first bottom wall are jointly formed with a first space, the first top wall and the first bottom wall are arranged at intervals along a first direction, and a first opening is formed in the first side wall.

3. The battery pack according to claim 2,

the first opening comprises a first portion and a second portion;

the channels comprise a first channel and a second channel;

the first channel is located at the first top wall, and the first channel is communicated with the first part and the second opening;

the second channel is located in the first bottom wall, the second channel communicating with the second portion and the second opening.

4. The battery pack of claim 3, wherein the first side wall comprises a first wall, the first opening is disposed in the first wall, and an included angle between the first wall and the first bottom wall is an obtuse angle.

5. The battery pack according to claim 4,

the first portion is close to first roof setting, the second portion is close to first diapire setting, the first portion with the contained angle between the first roof is the obtuse angle.

6. The battery pack according to claim 5,

the included angle between the second part and the first bottom wall is an obtuse angle.

7. The battery according to claim 3, wherein the battery includes a first through hole that penetrates the first bottom wall.

8. The battery pack of claim 7, wherein the first through-hole communicates with the second channel.

9. The battery pack according to claim 4,

the first side wall is provided with a second wall, the second wall and the first wall are oppositely arranged along a second direction, and the second channel extends along the second direction.

10. The battery of claim 3, wherein the first top wall includes a first recess formed with the first channel, and the first bottom wall includes a second recess formed with the second channel.

11. The battery pack according to any one of claims 1 to 10, further comprising a filter screen covering the first opening.

12. The battery pack according to claim 9, wherein the battery module comprises a battery case and a plurality of battery cells, the battery case is provided with a second space, and the plurality of battery cells are stacked in the second space along the second direction;

the battery case comprises a first support and a second support, the first support and the second support are oppositely arranged along a third direction, the first support is provided with a first cavity, the second support is provided with a second cavity, and the second space comprises the first cavity and the second cavity; the battery cell part is arranged in the second cavity, and the battery cell part is arranged in the first cavity.

13. The battery pack of claim 12, further comprising a first insulator formed by curing a resin after the resin is provided in the first cavity.

14. The battery pack according to claim 13,

the battery cell comprises an electrode assembly, a packaging shell and a tab;

the packaging shell comprises a containing part and a first edge sealing part formed by extending outwards from the containing part, and the electrode assembly is arranged in the containing part;

the part of the accommodating part is arranged in the first cavity, and the part of the accommodating part is arranged in the second cavity;

one end of the tab is connected with the electrode assembly, and the other end of the tab extends out of the first edge sealing part along the third direction;

the first insulating piece wraps the part, extending out of the packaging shell, of the pole lug, and the first sealing edge portion is wrapped by the first insulating piece.

15. An electrical consumer, characterized in that it comprises a battery as claimed in any one of claims 1 to 14.

16. The powered device of claim 15, wherein the powered device comprises a scooter, and the first opening is an air inlet along a direction of travel of the scooter.