CN218242084U

CN218242084U - Battery, battery module and consumer

Info

Publication number: CN218242084U
Application number: CN202221979568.9U
Authority: CN
Inventors: 张猛; 戴亨伟; 杨伟
Original assignee: Sunwoda Electric Vehicle Battery Co Ltd
Current assignee: Xinwangda Power Technology Co ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2023-01-06
Anticipated expiration: 2032-07-28
Also published as: WO2024021530A1

Abstract

The application provides a battery, battery module and consumer, includes: the battery comprises a shell, a battery cell and an insulating support piece, wherein the shell is provided with an accommodating cavity; the battery cell is arranged in the accommodating cavity and is provided with an end face extending along the Z direction, a side face extending along the Y direction and a bottom face extending along the X direction; the insulating support piece comprises a substrate, a first limiting part and a second limiting part, wherein the substrate is provided with a first surface facing the end face of the battery cell; the battery cell comprises a substrate, a first part and a second part, wherein the first part and the second part extend from the first surface of the substrate towards the direction of the battery cell and are respectively abutted against two side surfaces of the battery cell; the second limiting part is abutted against the bottom surface of the battery cell. This application effectively restricts rocking of electric core in the casing, plays buffering and supporting role, avoids electric core unsettled and leads to the short circuit with the casing contact, improves the security of battery.

Description

Battery, battery module and consumer

Technical Field

The application relates to the field of new energy, concretely relates to battery, battery module and consumer.

Background

The main power source of the new energy automobile is derived from a battery, and a core component of the battery is a power cell.

Among the present prior art, power electricity core cloth is located the casing, or a plurality of power electricity cores are piled up along the Y direction and are laid, through pin and mass flow body welded fastening back, rubberizing again, this kind of assembly, the risk that power electricity core rocked in the casing is great, especially under the vibration operating mode, the mass flow body that is located power electricity core both sides rocks about easily, the adhesive tape is not hard up, it is big to lead power electricity core and casing to take place the short circuit risk, cause huge potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The application provides a battery, battery module and consumer to solve electric core and rock and the inflation, lead to electric core and casing contact to take place the technical problem of short circuit.

In a first aspect, the present application provides a battery, comprising:

a housing having an accommodating chamber;

the battery cell is arranged in the accommodating cavity and provided with an end face extending along the Z direction, two opposite side faces extending along the Y direction and a bottom face extending along the X direction, wherein the X direction, the Y direction and the Z direction are mutually vertical; and

an insulating support comprising:

the substrate is provided with a first surface, and the first surface faces the end face of the battery cell so as to realize insulation isolation between the end face of the battery cell and the shell;

the first limiting part is provided with a first part and a second part which are oppositely arranged, and the first part and the second part extend from the first surface of the substrate towards the direction of the battery cell and are respectively abutted against the two side surfaces of the battery cell; and the second limiting part is provided with a first boss, and the first boss extends from the first surface of the substrate to the direction of the battery core and is abutted against the bottom surface of the battery core.

Optionally, in some embodiments of the present application, the battery further includes:

the third limiting part is arranged on the first limiting part and provided with a third boss and a fourth boss, the third boss and the fourth boss extend oppositely from the first part and the second part respectively, and the third boss and the fourth boss face the end face of the battery cell and are abutted against the end face.

Optionally, in some embodiments of the present application, the third bosses include a plurality of first sub-bosses, and the plurality of first sub-bosses are arranged at intervals along the Y direction of the end surface and abut against the end surface; the fourth boss comprises a plurality of second sub-bosses which are arranged at intervals along the Y direction of the end face and are abutted against the end face.

Optionally, in some embodiments of the application, the second limiting portion has a second boss, and the second boss extends from the first boss to the Y direction of the battery cell and abuts against the end surface of the battery cell.

Optionally, in some embodiments of the present application, the first boss includes a plurality of third sub-bosses, and the plurality of third sub-bosses are arranged at intervals along the Z direction of the bottom surface and abut against the bottom surface of the battery cell; and/or the second boss comprises a plurality of fourth sub-bosses which are arranged at intervals along the Z direction of the end face and are abutted against the end face.

Optionally, in some embodiments of the present application, the first component includes a plurality of first retaining walls, the first retaining walls are arranged at intervals along the Y direction of the side and abut against the side, the second component includes a plurality of second retaining walls, and the second retaining walls are arranged at intervals along the Y direction of the side and abut against the side.

Optionally, in some embodiments of the present application, the substrate includes: the two ends of the U-shaped connecting part are respectively connected with the support edges to form a hollow U-shaped plate.

Optionally, in some embodiments of the application, the number of the insulating support members is two, and the two insulating support members are located at two end sides of the battery cell in the X direction, respectively.

Optionally, in some embodiments of the present application, the substrate has a first hollow structure; and/or the first limiting part is provided with a second hollow structure.

Optionally, in some embodiments of the present application, the accommodating cavity of the housing has an open end opening in the Y direction; the battery includes: a top cover assembly covering the open end; and a first connection portion disposed on the top cap assembly; the insulating support member includes: the second connecting portion is arranged on the first surface of the substrate and is connected with the first connecting portion in a matched mode.

Optionally, in some embodiments of the present application, the first connecting portion includes a notch or a protrusion, and the second connecting portion includes a clamping protrusion adapted to the notch, or a clamping groove adapted to the protrusion.

In a second aspect of the present application, a battery module is provided, which includes the above battery.

Correspondingly, this application still provides an consumer, and it includes foretell battery module.

The embodiment of the application has one or more of the following beneficial effects:

the embodiment of the application provides a battery, through setting up insulating support piece, carries on spacingly to electric core in X direction, Y direction and Z direction, effectively restricts the drunkenness/rock of electric core in the casing, plays buffering and supporting role to with the insulating isolation of inner wall of electric core and casing, avoid electric core and casing contact and lead to the short circuit, thereby improved the security of battery.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a first exploded view of a battery provided herein;

FIG. 2 is a schematic view of a first configuration of an insulating support provided herein;

FIG. 3 is a second structural schematic view of the insulating support provided herein;

FIG. 4 is a schematic view of a third configuration of an insulating support provided herein;

fig. 5 is a second exploded view of a battery provided herein;

fig. 6 is a perspective view of a battery provided herein.

The scores in the figure are expressed as: the battery comprises a battery 100, a housing 1, a battery cell 2, an insulating support 3, a top cover assembly 4, a first limiting portion 31, a third limiting portion 32, a second limiting portion 33, a substrate 34, a positive pin 41, a first connecting portion 42, a first part 311, a second part 312, a second hollowed-out structure 313, a third boss 321, a fourth boss 322, a first boss 331, a second boss 332, a clamping protrusion 341, a first hollowed-out structure 342, a support edge 343, a support edge 344, a notch 421, a first retaining wall 3111, a second retaining wall 3121, a first sub-boss 3211, a second sub-boss 3221, a third sub-boss 3311, and a fourth sub-boss 3321.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless otherwise specified, the use of directional terms such as "upper", "lower", "left" and "right" generally refer to upper, lower, left and right in the actual use or operation of the device, and specifically to the orientation of the drawing figures.

The present application provides a battery, a battery module, and an electric device, which will be described in detail below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments of the present application. In the following embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to related descriptions of other embodiments for parts that are not described in detail in a certain embodiment.

An embodiment of the present application provides a battery 100, please refer to fig. 1, which includes: casing 1, electric core 2 and two insulating support piece 3.

The housing 1 has a first side wall, a second side wall and an inner bottom wall, which are disposed opposite to each other, and an accommodating chamber having an X direction, a Y direction and a Z direction is enclosed by the first side wall, the second side wall and the inner bottom wall, which are disposed opposite to each other, wherein the X direction, the Y direction and the Z direction are perpendicular to each other. In some embodiments, the accommodating cavity of the casing 1 has an open end opened in the Y direction, and the top cover assembly 4 covers the open end to facilitate installation of the internal components of the battery cell 2, the insulating support 3, and the like.

Electric core 2 is accomodate in holding the intracavity. The battery cell 2 has an end face a facing the first side wall and extending in the Z direction, a side face B facing the second side wall and extending in the Y direction, and a bottom face C facing the inner bottom wall and extending in the X direction. In some embodiments, the number of the battery cells 2 is multiple, and a plurality of battery cells 2 are stacked along the Y direction and are welded and fixed to the current collectors of the battery cells 2 through pins at two ends.

Two insulating support piece 3 install respectively in electric core 2 along the relative both ends side of X direction to with electric core 2 along Z direction and X direction positioning in holding the intracavity, play buffering electric core 2 and rock and the inflation, avoid electric core 2 unsettled and with casing 1 contact, reduce electric core 2 and casing 1's first lateral wall, second lateral wall and interior bottom wall contact and take place the short circuit risk. The insulating support 3 can be made of plastic materials such as PP, PET, PPS and the like.

Referring to fig. 2, the insulating support 3 includes: the battery cell comprises a substrate 34, a first limiting part 31 and a second limiting part 33, wherein the substrate 34 has a first surface facing the end surface of the battery cell 2, so as to realize insulation isolation between the end surface of the battery cell 2 and the first side wall of the casing 1; the first stopper 31 includes a first member 311 and a second member 312 that are disposed opposite to each other, and the first member 311 and the second member 312 extend from the first surface of the substrate 34 toward the cell 2 and respectively contact two side surfaces of the cell 2 in the X direction.

The second stopper 33 has a first boss 331, and the first boss 331 extends from the first surface of the substrate 34 toward the battery cell 2 and abuts against the bottom surface of the battery cell 2. First boss 331 can upwards hold electric core 2, plays the supporting role to fix a position electric core 2 in the cavity that holds in the Y direction, avoid electric core 2 and casing 1's interior diapire direct contact and cause the short circuit.

It will be understood by those skilled in the art that the substrate 34 is a load-bearing member, and may be, but is not limited to, square, circular, or other shapes. In some embodiments, the substrate 34 has a first hollow structure 342 for heat dissipation and buffering. The first hollow structure 342 may be a square hole, a circular hole, or other irregular partial hollow, or may be an integral hollow. In other embodiments, the first position-limiting portion 31 has a second hollow structure 313 for heat dissipation and buffering. The first part 311 and the second part 312 are both provided with a second hollow structure 313. The second hollow structure 313 may be two or more circular holes, square holes or other irregular shapes.

In the specific implementation of the above embodiment, the total height of the insulating support 3 is 0.5mm to 4mm lower than the effective height of the battery cell 2 in the Y direction of the casing 1; the distance between the periphery of the insulating support 3 and the inner wall of the shell 1 is 0.3mm-1.5mm. The overlapping area of the first part 311 and the second part 312 of the insulating support 3 with the cell 2 in the Y direction of the cell 2 is within 30mm, which is beneficial to positioning the cell 2 by the insulating support 3. The wall thickness of the insulating support 3 is within 2 mm. The substrate 34 and the first stopper 31 may be integrally formed or may be separated.

In some embodiments of the present application, battery 100 includes: and a third limiting portion 32 disposed on the first limiting portion 31, where the third limiting portion 32 has a third boss 321 and a fourth boss 322, and the third boss 321 and the fourth boss 322 extend from the first part 311 and the second part 312 in opposite directions, and are respectively abutted against end faces of two sides of the battery cell 2 in the Z direction. In other embodiments, referring to fig. 3 and fig. 4, the third bosses 321 include a plurality of first sub-bosses 3211, and the first sub-bosses 3211 are arranged at intervals along the Y direction of the end surface of the electrical core and abut against the end surface; the fourth protrusion 322 includes a plurality of second sub-protrusions 3221, and the plurality of second sub-protrusions 3221 are arranged at intervals along the Y direction of the end surface of the electrical core, and abut against the end surface. The first sub-bosses 3211 and the second sub-bosses 3221 arranged at intervals form discontinuous third bosses 321 and discontinuous fourth bosses 322, buffer spaces are formed between the two adjacent first sub-bosses 3211 and between the two adjacent second sub-bosses 3221, so that a better buffer effect is favorably provided, and meanwhile, the first sub-bosses 3211 and the second sub-bosses 3221 are in multi-point contact with the end surfaces of the battery cell 2 respectively, so that the positioning effect on the battery cell 2 is favorably improved.

In the specific implementation of the embodiment, the areas of the third boss 321 and the fourth boss 322 of the insulating support member 3 are less than or equal to one third of the area of the end surface of the battery cell 2, which is favorable for the insulating support member 3 to position the battery cell 2.

The third boss 321 and the fourth boss 322 are formed on the first member 311 and the second member 312, respectively, to form the third limiting portion 32, so that a spacing space is formed between the third limiting portion 32 and the substrate 34, and a buffer space is formed between the battery cell 2 and the substrate 34, thereby limiting the shaking/play of the battery cell 2 in the X direction and simultaneously playing a buffer role.

In some embodiments of the present application, referring to fig. 2, 3 and 4, the battery 100 includes: in some embodiments, the first protrusion 331 includes a plurality of third sub-protrusions 3311, the plurality of third sub-protrusions 3311 are spaced apart from each other along the Z-direction of the bottom surface of the electric core, and abut against the bottom surface, so as to form a buffer space between two adjacent third sub-protrusions 3311, which is beneficial to providing a better buffer effect. In a specific example, referring to fig. 3, the number of the third sub-bosses 3311 is two, and the two third sub-bosses 3311 respectively abut against the bottom surface of the battery cell 2.

In the specific implementation of the above embodiment, the area of the first boss 331 of the insulating support 3 is less than or equal to half of the area of the bottom surface of the battery cell 2, so that the battery cell 2 is positioned by using the insulating support 3.

In some embodiments of the present application, referring to fig. 2, the second limiting portion 33 further has a second protrusion 332, and the second protrusion 332 extends from the first protrusion 331 toward the Y direction of the battery cell 2 and abuts against an end surface of the battery cell 2. In some embodiments, the insulating support 3 includes a first position-limiting portion 31, a third position-limiting portion 32, and a second position-limiting portion 33, the third position-limiting portion 32 has a third boss 321 and a fourth boss 322, the second position-limiting portion 33 has a first boss 331 and a second boss 332, and the first boss 331 and the second boss 332 are located in the same plane as the third boss 321 and the fourth boss 322. In other embodiments, referring to fig. 4, the second protrusion 332 includes a plurality of fourth sub-protrusions 3321, the plurality of fourth sub-protrusions 3321 are arranged at intervals along the Z direction of the end surface of the electrical core and abut against the end surface, and a buffer space is formed between adjacent fourth sub-protrusions 3321, which is beneficial to providing a better buffer effect. In other embodiments, the fourth sub-protrusion 3321 may have a quadrilateral structure, which is beneficial to increase the contact surface between the fourth sub-protrusion 3321 and the battery cell 2, so as to improve the contact effect. However, the structure is not limited to a quadrilateral structure, and may be a rhombus, a triangle, a circle, or the like.

It should be noted that, by forming the second boss 332 on the first boss 331, a space is formed between the second boss 332 and the substrate 34, so that a buffer space is provided between the battery cell 2 and the substrate 34, and the buffer space plays a role in limiting the battery cell 2 from shaking in the X direction and also plays a role in buffering.

In some embodiments of the present application, referring to fig. 3, the first part 311 includes a plurality of first retaining walls 3111, the first retaining walls 3111 are arranged at intervals along the Y direction of the side surface of the battery cell and abut against the side surface; the second part 312 includes a plurality of second retaining walls 3121, and the second retaining walls 3121 are arranged at intervals along the Y direction of the side surface of the battery cell, and abut against the side surface. Buffer space is formed between two adjacent first retaining walls 3111 and two adjacent second retaining walls 3121, which is favorable for improving the buffer effect. First barricade 3111, second barricade 3121 respectively with electric core 2 in the side looks butt of Z direction both sides, can effectively restrict rocking of electric core 2 in the Z direction. In other embodiments, the insulating support 3 further comprises: the third limiting portion 32, the third limiting portion 32 has a third boss 321 and a fourth boss 322, the third boss 321 includes first sub-bosses 3211 arranged at intervals, the first sub-bosses 3211 correspond to the first retaining walls 3111 one to one, the fourth boss 322 includes second sub-bosses 3221 arranged at intervals, and the second sub-bosses 3221 correspond to the second retaining walls 3121 one to one. In other embodiments, the substrate 34 includes: two

opposite support ribs

343, 344 and a U-shaped connecting component 345, wherein two ends of the U-shaped connecting component 345 are respectively connected with the

support ribs

343, 344 to form a hollow U-shaped plate. The two

support ribs

343, 344 respectively have a first surface for supporting the first part 311 of the first position-limiting portion 31 and a second surface for supporting the second part 312 of the first position-limiting portion 31. The hollow U-shaped plate of the present embodiment simplifies the construction of the base plate 34 while providing effective support, reduces the overall weight of the insulating support member 3, and improves heat dissipation performance.

In some embodiments of the present application, please refer to fig. 5, the accommodating cavity of the housing 1 has an open end opened in the Y direction; the battery 100 includes: a cap assembly 4 and a first connection 42, the cap assembly 4 capping the open end. The first connecting portion 42 is disposed on a side of the top cover assembly 4 facing the accommodating cavity. The insulating support 3 comprises: and a second connecting portion disposed on the first surface of the substrate 34 and connected to the first connecting portion 42 in a matching manner. The first connecting portion 42 may be a plastic component, and the plastic component is connected to the second connecting portion through heat melting, so that the insulating support 3 is fixed to the top cover assembly 4. In some embodiments, referring to fig. 1 and fig. 5, the first connecting portion 42 includes a notch 421, the second connecting portion includes a clamping protrusion 341, and the clamping protrusion 341 is adapted to the notch 421, so that the clamping protrusion 341 is clamped with the notch 421 of the first connecting portion 42, and an effective fixation can be formed between the top cover assembly 4 and the insulating support 3. The shape of the notch 421 may be round, square or other shapes that can function as a socket. In other embodiments, the first connecting portion 42 includes a protrusion, the second connecting portion includes a locking groove, and the locking groove is matched with the protrusion, so as to lock the protrusion with the locking groove, and form an effective fixation between the top cover assembly 4 and the insulating support member 3.

In some embodiments of the present application, referring to fig. 5 and 6, the battery 100 includes: the battery comprises a shell 1, two battery cores 2, a positive current collector, a negative current collector, a positive pin 41, a negative pin and two insulating support pieces 3, wherein the positive current collector is arranged between one end face of each battery core 2 and a first surface of each insulating support piece 3, and the negative current collector is arranged between the other end face of each battery core 2 and the first surface of each insulating support piece 3; the positive pin 41 and the negative pin are arranged on the top cover assembly 4 and extend into the accommodating cavity, one sides of the positive pin 41 and the negative pin are respectively connected with the positive current collector and the negative current collector through welding so as to form electric connection with the current collectors, and the other sides of the positive pin 41 and the negative pin are pasted with insulating gummed paper. Two insulating support piece 3 install respectively in electric core 2 along the relative both ends side of X direction to with electric core 2 along Z direction and Y direction positioning in holding the intracavity, play buffering electric core 2 and rock and the inflation, reduce electric core 2 and the first lateral wall of casing 1, second lateral wall and interior diapire contact and the risk of taking place the short circuit. The insulating support 3 completely isolates the positive pin 41 and the negative pin from the inner wall of the shell 1, so as to avoid short circuit caused by the contact of the positive pin 41 and the negative pin with the shell 1.

The battery 100 provided by the above embodiment of the present application has a simple structure, is easy to implement, has low manufacturing difficulty, is suitable for large-scale popularization and application, and has a high practical value.

Correspondingly, an embodiment of the present application further provides a battery module, which includes the battery 100 described above. And an electric device including the battery module.

The following description will be given with reference to specific examples.

Example 1

The present embodiment provides a battery 100, please refer to fig. 5, which includes: casing 1, electric core 2, top cap subassembly 4 and two insulating support piece 3.

The housing 1 has a first side wall, a second side wall and an inner bottom wall, which are disposed opposite to each other, and the first side wall, the second side wall and the inner bottom wall enclose an accommodating cavity having an X direction, a Y direction and a Z direction.

The number of the cells 2 is two, and the two cells 2 are stacked in the Y direction. Electric core 2 is accomodate in holding the intracavity, and electric core 2 has the terminal surface that extends towards first lateral wall and along the Z direction, faces the second lateral wall and along two sides of X direction extension, and the bottom surface that extends towards interior diapire and along the X direction. Two insulating support piece 3 install respectively in electric core 2 along the both ends side of X direction to be located electric core 2 along Z direction and X direction and hold the intracavity, play buffering electric core 2 and rock and the expanded effect, reduce electric core 2 and casing 1's first lateral wall, second lateral wall and interior diapire contact and take place the short circuit risk. The insulating support member 3 may be made of PP plastic material.

The top cover component 4 covers the open end; the cap assembly 4 is provided with a notch 421.

Referring to fig. 2, the insulating support 3 includes: a substrate 34, a first position-limiting part 31, a third position-limiting part 32 and a second position-limiting part 33.

The substrate 34 is shaped in a square configuration. The substrate 34 has a first hollow structure 342, and the first hollow structure 342 is composed of a plurality of square holes, and the plurality of square holes are uniformly distributed. The upper end of the base plate 34 is provided with a clamping protrusion 341 matching with the notch 421. The clamping protrusion 341 is clamped with the notch 421 of the top cover assembly 4, so as to form effective fixation between the top cover assembly 4 and the insulating support 3.

The first stopper 31 has a first member 311 and a second member 312 that are disposed opposite to each other, and the first member 311 and the second member 312 extend from the first surface of the substrate 34 toward the cell 2 and respectively contact two side surfaces of the cell 2 in the Z direction, so as to limit the cell 2 from wobbling in the Z direction.

The third limiting portion 32 has a third boss 321 and a fourth boss 322, where the third boss 321 and the fourth boss 322 extend from the first part 311 and the second part 312 in opposite directions, and respectively abut against end faces of the battery cell 2 on two sides in the Z direction, so as to limit the battery cell 2 from shaking in the X direction.

The second stopper 33 has a first boss 331, and the first boss 331 extends from the first surface of the substrate 34 toward the battery cell 2 and abuts against the bottom surface of the battery cell 2. First boss 331 can upwards hold electric core 2, plays the supporting role to fix a position electric core 2 in the intracavity that holds in the Y direction, avoid electric core 2 and casing 1's interior diapire direct contact and cause the short circuit.

Example 2

The structure of the insulating support 3 of the present embodiment is different from that of embodiment 1.

Referring to fig. 3, the insulating support 3 includes: a substrate 34, a first position-limiting part 31, a third position-limiting part 32 and a second position-limiting part 33.

The base plate 34 includes two

support ribs

343, 344 and a U-shaped connecting member 345, and two end portions of the U-shaped connecting member 345 are connected to the

support ribs

343, 344 respectively to form a hollow U-shaped plate. The substrate 34 is provided with a second connecting portion, and the second connecting portion is connected to the first connecting portion 42 of the top cover assembly 4 through hot melting, so that the insulating support member 3 and the top cover assembly 4 are fixed.

The first limiting portion 31 has a first part 311 and a second part 312 which are arranged oppositely, the first part 311 includes a plurality of first retaining walls 3111 which are arranged at intervals, and the plurality of first retaining walls 3111 are arranged at intervals along the Y direction of the side surface of the battery cell and are abutted against one side surface of the battery cell. The second part 312 includes a plurality of second retaining walls 3121 arranged at intervals, and the plurality of second retaining walls 3121 are arranged at intervals along the Y direction of the side surface of the battery cell, and are abutted against the other side surface of the battery cell.

The third limiting portion 32 has a third boss 321 and a fourth boss 322, wherein the third boss 321 includes first sub-bosses 3211 arranged at intervals, the first sub-bosses 3211 correspond to the first retaining walls 3111 one by one, and the first sub-bosses 3211 are arranged at intervals along the Y direction of the end surface of the battery cell and abut against the end surface; the fourth bosses 322 include second sub-bosses 3221 arranged at intervals, the second sub-bosses 3221 correspond to the second retaining walls 3121 one by one, and the second sub-bosses 3221 are arranged at intervals in the Y direction of the end surface of the electrical core and abut against the end surface.

The second limiting portion 33 has a first boss 331, the first boss 331 is a plurality of third sub-bosses 3311 arranged at intervals, and the plurality of third sub-bosses 3311 are arranged at intervals along the Z direction of the bottom surface of the battery cell and abut against the bottom surface.

Example 3

Referring to fig. 4, the insulating support 3 includes: a substrate 34, a first position-limiting part 31, a third position-limiting part 32 and a second position-limiting part 33.

The shape of the substrate 34 is irregular hexagonal. The substrate 34 is provided with a plurality of first hollow structures 342 in a ring shape. The substrate 34 is provided with a second connecting portion, and the second connecting portion is connected to the first connecting portion 42 of the top cover assembly 4 through hot melting, so that the insulating support member 3 and the top cover assembly 4 are fixed.

The first stopper 31 has a first member 311 and a second member 312 which are disposed opposite to each other. The first part 311 includes a plurality of first retaining walls 3111 arranged at intervals, and the plurality of first retaining walls 3111 are arranged at intervals along the Y direction of the side surface of the battery cell and are abutted against one side surface of the battery cell. The second member 312 includes a plurality of second retaining walls 3121 arranged at intervals, and the plurality of second retaining walls 3121 are arranged at intervals along the Y direction of the side surface of the battery cell, and abut against the other side surface of the battery cell.

The third limiting part 32 has a third boss 321 and a fourth boss 322, where the third boss 321 is a first sub-boss 3211 arranged at intervals, and the first sub-bosses 3211 are arranged at intervals along the Y direction of the end surface of the electrical core and abut against the end surface; the fourth bosses 322 are second sub-bosses 3221 arranged at intervals, and the second sub-bosses 3221 are arranged at intervals along the Y direction of the end surface of the electrical core, and abut against the end surface.

The second limiting portion 33 has a first boss 331 and a second boss 332, where the second boss 332 includes a plurality of fourth sub-bosses 3321, the plurality of fourth sub-bosses 3321 are arranged at intervals, and the plurality of fourth sub-bosses 3321 are arranged at intervals along the Z direction of the end surface of the electrical core, and are abutted to the end surface.

The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application. Furthermore, the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

Claims

1. A battery, comprising:

a housing having an accommodating chamber;

an insulating support comprising:

a substrate having a first surface facing the end surface of the cell, so as to achieve insulation between the end surface of the cell and the casing;

the first limiting part is provided with a first part and a second part which are oppositely arranged, and the first part and the second part extend from the first surface of the substrate towards the direction of the battery cell and are respectively abutted against the two side surfaces of the battery cell; and

the second limiting part is provided with a first boss, and the first boss extends from the first surface of the substrate to the direction of the battery core and is abutted against the bottom surface of the battery core.

2. The battery of claim 1, further comprising:

3. The battery of claim 2, wherein the third protrusion comprises a plurality of first sub-protrusions, and the plurality of first sub-protrusions are arranged at intervals along the Y direction of the end surface of the battery cell and abut against the end surface; the fourth boss comprises a plurality of second sub-bosses which are arranged at intervals along the Y direction of the end face of the battery cell and are abutted against the end face.

4. The battery of claim 1, wherein the second limiting portion has a second protrusion, and the second protrusion extends from the first protrusion to the Y direction of the battery core and abuts against the end surface of the battery core.

5. The battery of claim 4, wherein the first bosses comprise a plurality of third sub-bosses, and the plurality of third sub-bosses are arranged at intervals along the Z-direction of the bottom surface of the battery cell and abut against the bottom surface; and/or

The second bosses comprise a plurality of fourth sub-bosses which are arranged at intervals along the Z direction of the end face of the battery cell and are abutted against the end face.

6. The battery of claim 1, wherein the first component comprises a plurality of first retaining walls, the first retaining walls are arranged at intervals along the Y direction of the side surface of the battery cell and abut against the side surface, and the second component comprises a plurality of second retaining walls, the second retaining walls are arranged at intervals along the Y direction of the side surface of the battery cell and abut against the side surface.

7. The battery of any one of claims 1-6, wherein the number of the insulating support members is two, and the two insulating support members are respectively located at two end sides of the battery cell in the X direction.

8. The cell defined in any one of claims 1-6, wherein the housing cavity has an open end that is open in the Y-direction;

the battery includes: a top cover assembly covering the open end; and

a first connection portion disposed on the top cap assembly;

the insulating support member includes: the second connecting portion is arranged on the first surface of the substrate and is connected with the first connecting portion in a matched mode.

9. A battery module comprising the battery according to any one of claims 1 to 8.

10. An electric device characterized by comprising the battery module according to claim 9.