CN217444516U

CN217444516U - A casing and battery for battery

Info

Publication number: CN217444516U
Application number: CN202221346891.2U
Authority: CN
Inventors: 李东亮; 曹志锋; 胡江波
Original assignee: Shenzhen Heyi New Energy Technology Co ltd
Current assignee: Shenzhen Heyi New Energy Technology Co ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-09-16
Anticipated expiration: 2032-05-31

Abstract

The utility model discloses a casing and battery for battery, the casing for battery includes first casing, second casing and insulating collar, insulating collar and first casing and second casing one set up as an organic whole, the insulating collar is contradicted with the other one in first casing and the second casing and is connected to make first casing and second casing insulating cooperation and form the seal chamber; the battery includes electric core module and the aforesaid is used for the casing of battery. This a casing for battery, because insulating ring and one of them in first casing and the second casing are integrative the setting, consequently, need not to bond through rubber coating etc. when the assembly, only need can realize insulating cooperation and form the sealed chamber that is used for installing electric core module with another butt in first casing and the second casing, it is more convenient to assemble, has improved assembly efficiency.

Description

A casing and battery for battery

Technical Field

The utility model relates to a button cell technical field especially relates to a casing and battery for battery.

Background

Button cells, also known as Button cells, are a type of battery that resembles a Button. The diameter of the button cell is relatively larger, and the thickness of the button cell is relatively thinner. Button cell includes the casing and establishes the electric core module in the casing.

The casing usually includes block, drain pan and sealing washer, and the block lid is established and is formed sealed chamber on the drain pan to hold electric core module, the sealing washer is used for ensuring insulating between block and the drain pan. However, the traditional shell needs the sealing ring to be glued and bonded with the cap and the bottom shell, and the assembly is very inconvenient.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a case for a battery and a battery; this a casing for battery convenient assembling has improved assembly efficiency.

The technical scheme is as follows:

one embodiment provides a case for a battery, comprising:

a first housing and a second housing;

the insulating ring is integrally arranged with one of the first shell and the second shell, and the insulating ring is in interference connection with the other one of the first shell and the second shell so that the first shell and the second shell are in insulating fit and form a sealed cavity.

Above-mentioned a casing for battery, because insulating ring and one of them in first casing and the second casing are integrative the setting, consequently, need not to bond through rubber coating etc. when the assembly, only need can realize insulating cooperation and form the sealed chamber that is used for installing electric core module with another butt in first casing and the second casing, it is more convenient to assemble, has improved assembly efficiency.

The technical solution is further explained below:

in one embodiment, the insulating ring is integrally disposed with the first housing, the second housing has an annular abutting groove, a notch of the abutting groove faces the first housing, and at least a portion of the insulating ring is located in the abutting groove and is in abutting connection with the second housing.

In one embodiment, the first housing has a bottom wall and an annular wall surrounding an outer periphery of the bottom wall, the annular wall is located on a side of the bottom wall facing the second housing and is integrally provided with the bottom wall, and the insulating ring is integrally provided with the annular wall.

In one embodiment, the insulating ring has an annular groove, the notch of the annular groove faces the first shell, and one end of the annular wall facing the second shell is located in the annular groove, so that the first shell and the insulating ring are integrally arranged.

In one embodiment, the insulating ring is provided with a first attaching portion and a second attaching portion, the first attaching portion and the second attaching portion are respectively located on two opposite sides of the annular wall, and the first attaching portion and the second attaching portion are matched to form the annular groove.

In one embodiment, the first attaching portion is located on the outer side of the annular wall, the second attaching portion is located on the inner side of the annular wall, and the extension length of the first attaching portion towards the bottom wall is larger than that of the second attaching portion towards the bottom wall.

In one embodiment, the second housing has a first bending portion, a second bending portion and a third bending portion, the second bending portion is located between the first bending portion and the third bending portion, the first bending portion is located at an outer edge of the second housing and extends toward one side of the first housing, the third bending portion extends toward one side away from the first housing, and the first bending portion, the second bending portion and the third bending portion cooperate to form the abutting groove.

In one embodiment, the extending end of the first bending part does not exceed the extending end of the first fitting part, and the part of the third bending part facing the first shell does not exceed the extending end of the second fitting part;

the first bending part is provided with a pressing part, the pressing part is positioned at the extending end of the first bending part and bends towards one side of the first attaching part, and the pressing part is used for pressing the first attaching part;

the middle part of second casing still is equipped with the boss, the boss is towards keeping away from the protruding setting of one side of first casing.

In one embodiment, the first housing and the insulating ring are integrally formed by injection molding.

Another embodiment provides a battery including:

a battery cell module;

according to the shell for the battery, the battery cell module is arranged in the sealing cavity.

Above-mentioned battery, electric core module establish at sealed intracavity, and the assembly of casing is more convenient, has improved holistic assembly efficiency.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

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

Furthermore, the drawings are not drawn to a 1:1 scale, and the relative sizes of the various elements in the drawings are drawn only by way of example, and not necessarily to true scale.

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

FIG. 2 is a sectional view showing the overall structure of the battery of the embodiment of FIG. 1 after the initial installation;

FIG. 3 is a cross-sectional view showing the overall structure of the battery of the embodiment of FIG. 1 after the installation is completed;

FIG. 4 is an assembly view of the insulating ring, the first bending portion and the pressing portion in the embodiment of FIG. 3;

FIG. 5 is a schematic view of the overall structure of the first housing and the insulating ring in the embodiment of FIG. 1;

FIG. 6 is a sectional view of the first housing and the insulating ring in the embodiment of FIG. 5;

FIG. 7 is a schematic diagram of the overall structure of the second housing in the embodiment of FIG. 1;

fig. 8 is a sectional view showing the entire structure of the second housing in the embodiment of fig. 1.

Reference is made to the accompanying drawings in which:

100. a first housing; 110. a bottom wall; 120. an annular wall; 200. a second housing; 210. a first bent portion; 211. a pressing part; 220. a second bent portion; 230. a third bent portion; 240. a butt joint groove; 250. a boss; 300. an insulating ring; 310. a first bonding portion; 320. a second bonding portion; 400. battery cell module.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings:

in order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Referring to fig. 1 to 3, an embodiment provides a case for a battery, including a first case 100, a second case 200, and an insulating ring 300, where the insulating ring 300 is integrally disposed with one of the first case 100 and the second case 200, and the insulating ring 300 is in interference connection with the other of the first case 100 and the second case 200, so that the first case 100 and the second case 200 are in insulating fit and form a sealed cavity.

This a casing for battery, because insulating ring 300 is integrative setting with one of them in first casing 100 and the second casing 200, consequently, need not to bond through the rubber coating etc. when the assembly, only need with first casing 100 and second casing 200 in another butt can realize insulating cooperation and form the sealed chamber that is used for installing electric core module 400, it is more convenient to assemble, has improved assembly efficiency.

For example, the insulating ring 300 may be integrally disposed with the first housing 100, and during assembly, only the first housing 100 and the second housing 200 need to be combined, and during the combining process, the insulating ring 300 abuts against the second housing 200, so as to complete the assembly.

For another example, the insulating ring 300 may be integrated with the second housing 200, and during assembly, the second housing 200 and the first housing 100 are only required to be combined, and during the combining process, the insulating ring 300 abuts against the first housing 100, so as to complete assembly.

In one embodiment, referring to fig. 5 to 8, the insulating ring 300 is integrally disposed with the first housing 100, the second housing 200 has an annular abutting groove 240, a notch of the abutting groove 240 faces the first housing 100, and at least a portion of the insulating ring 300 is located in the abutting groove 240 and is in interference connection with the second housing 200.

As shown in fig. 5, an insulating ring 300 is integrally provided at the upper end of the first housing 100; as shown in fig. 8, the lower end of the second housing 200 is provided with an abutting groove 240. Since the insulating ring 300 is integrally provided at the upper end of the first casing 100, the second casing 200 is covered above the first casing 100 during assembly, and the insulating connection between the first casing 100 and the second casing 200 is realized by the cooperation of the insulating ring 300 and the abutting groove 240.

It can be understood that:

the abutting groove 240 is approximately equivalent to the insulating ring 300 to achieve the matching just, or the size of the abutting groove 240 is slightly smaller than the insulating ring 300 to achieve better abutting and insulating effects, which is not repeated.

In one embodiment, referring to fig. 6, the first casing 100 has a bottom wall 110 and an annular wall 120, the annular wall 120 is disposed around the periphery of the bottom wall 110, the annular wall 120 is disposed on a side of the bottom wall 110 facing the second casing 200 and is integrally disposed with the bottom wall 110, and the insulating ring 300 is integrally disposed with the annular wall 120.

As shown in fig. 6, the annular wall 120 is integrally formed above the bottom wall 110 to form a bottom case structure, and the insulating ring 300 is integrally formed with an upper end of the annular ring.

In one embodiment, referring to fig. 4 and 6, the insulating ring 300 has an annular groove, the notch of the annular groove faces the first housing 100, and one end of the annular wall 120 facing the second housing 200 is located in the annular groove, so that the first housing 100 and the insulating ring 300 are integrally disposed.

As shown in fig. 4, the insulating ring 300 has a ring groove with a downward notch for engaging with and integrally provided with the upper end of the ring wall 120.

Optionally, the first casing 100 and the second casing 200 are both cylindrical casings, the first casing 100 is substantially a bottom casing, and the second casing 200 is substantially a cap; accordingly, the insulating ring 300 is substantially circularly disposed.

Optionally, the insulating ring 300 is a rubber ring to perform insulating and sealing functions.

In one embodiment, referring to fig. 6, the insulating ring 300 has a first attaching portion 310 and a second attaching portion 320, the first attaching portion 310 and the second attaching portion 320 are respectively located on two opposite sides of the annular wall 120, and the first attaching portion 310 and the second attaching portion 320 cooperate to form an annular groove.

In one embodiment, referring to fig. 6, the first fitting portion 310 is located on the outer side of the annular wall 120, the second fitting portion 320 is located on the inner side of the annular wall 120, and the extension length of the first fitting portion 310 towards the bottom wall 110 is greater than the extension length of the second fitting portion 320 towards the bottom wall 110.

As shown in fig. 6, the first fitting portion 310 fits to the outer side of the annular wall 120, the second fitting portion 320 fits to the inner side of the annular wall 120, and the lower end of the first fitting portion 310 is higher than the lower end of the second fitting portion 320.

In one embodiment, referring to fig. 4 and 8, the second housing 200 has a first bending portion 210, a second bending portion 220 and a third bending portion 230, the second bending portion 220 is located between the first bending portion 210 and the third bending portion 230, the first bending portion 210 is located at an outer edge of the second housing 200 and extends toward one side of the first housing 100, the third bending portion 230 extends toward one side away from the first housing 100, and the first bending portion 210, the second bending portion 220 and the third bending portion 230 cooperate to form a contact groove 240.

As shown in fig. 4, the first bent portion 210 is located at an outer edge of the second housing 200, the first bent portion 210 extends substantially toward the lower side, the third bent portion 230 extends substantially toward the upper side, the second bent portion 220 extends substantially horizontally, and the first bent portion 210, the second bent portion 220 and the third bent portion 230 cooperate to form an abutting groove 240 for abutting engagement with the insulating ring 300.

Alternatively, the first bent part 210, the second bent part 220, and the third bent part 230 may be obtained by performing multi-stage stamping on the second case 200.

In one embodiment, referring to fig. 4, the extending end of the first bending portion 210 does not exceed the extending end of the first fitting portion 310, and the portion of the third bending portion 230 facing the first housing 100 does not exceed the extending end of the second fitting portion 320.

As shown in fig. 4, the lower end of the first bending portion 210 is higher than the lower end of the first attaching portion 310, and the lower end of the third bending portion 230 is higher than the lower end of the second attaching portion 320. By such an arrangement, the first bending part 210 and the third bending part 230 are not easily contacted with the first casing 100, thereby ensuring the insulation effect.

In an embodiment, referring to fig. 4, the first bending portion 210 further has a pressing portion 211, the pressing portion 211 is located at the extending end of the first bending portion 210 and bends toward one side of the first attaching portion 310, and the pressing portion 211 is used for pressing the first attaching portion 310.

As shown in fig. 4, the pressing portion 211 is bent toward the right side to press the first fitting portion 310, so that the first housing 100 and the second housing 200 can be mounted more reliably, and the sealing and insulating effects can be ensured.

Alternatively, the pressing portion 211 may be formed by punching or press bending.

In one embodiment, referring to fig. 7 and 8, the second housing 200 is a substantially circular housing and is disposed on the first housing 100 as a cap. The abutting groove 240 is a circular groove, and the abutting portion 211 is bent toward the inner side of the first bending portion 210 to abut against the insulating ring 300.

In one embodiment, referring to fig. 4, 7 and 8, the middle of the second housing 200 is further provided with a boss 250, and the boss 250 protrudes toward a side away from the first housing 100.

As shown in fig. 7 and 8, the middle portion of the second housing 200 is protruded toward the upper side to form a boss 250. As shown in fig. 2 and 3, the inner wall of the boss 250 of the second casing 200 may be used for welding with the tab of the cell module 400.

Alternatively, the boss 250 may be obtained by punching or pressing the second housing 200.

In one embodiment, the first housing 100 is integrally injection molded with the insulating ring 300.

Alternatively, the first casing 100 and the second casing 200 may be made of metal, such as iron, aluminum, stainless steel, etc. which can be formed into a plate.

Referring to fig. 1 to fig. 3, another embodiment provides a battery, which includes a cell module 400 and a casing for a battery as described in any of the above embodiments, wherein the cell module 400 is disposed in a sealed cavity.

The battery cell module 400 is arranged in the sealing cavity, so that the shell is more convenient to assemble, and the overall assembling efficiency is improved.

Optionally, the battery cell module 400 has a first tab and a second tab, one of the first tab and the second tab is a positive tab, and the other of the first tab and the second tab is a negative tab. One of the first tab and the second tab is electrically connected to the first casing 100, and the other of the first tab and the second tab is electrically connected to the second casing 200 to form a loop, which is not described again.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

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

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

Claims

1. A housing for a battery, comprising:

a first housing and a second housing;

2. The case of claim 1, wherein the insulating ring is integrally formed with the first case, the second case has an annular abutting groove with a notch facing the first case, and at least a portion of the insulating ring is located in the abutting groove and in abutting contact with the second case.

3. The case for a battery according to claim 2, wherein the first case has a bottom wall and an annular wall provided around an outer periphery of the bottom wall, the annular wall is provided on a side of the bottom wall facing the second case and is provided integrally with the bottom wall, and the insulating ring is provided integrally with the annular wall.

4. The case for a battery as claimed in claim 3, wherein the insulating ring has an annular groove with a notch facing the first case, and an end of the annular wall facing the second case is located in the annular groove so that the first case is integrally provided with the insulating ring.

5. The housing of claim 4, wherein the insulating ring has a first mating portion and a second mating portion, the first mating portion and the second mating portion being located on opposite sides of the annular wall, respectively, the first mating portion and the second mating portion cooperating to form the annular groove.

6. The housing of claim 5, wherein the first abutment is located on an outer side of the annular wall and the second abutment is located on an inner side of the annular wall, and an extension of the first abutment toward the bottom wall is greater than an extension of the second abutment toward the bottom wall.

7. The casing of claim 6, wherein the second casing has a first bending portion, a second bending portion and a third bending portion, the second bending portion is located between the first bending portion and the third bending portion, the first bending portion is located at an outer edge of the second casing and extends toward one side of the first casing, the third bending portion extends toward a side away from the first casing, and the first bending portion, the second bending portion and the third bending portion cooperate to form the abutting groove.

8. The case of claim 7, wherein the extension end of the first bending part does not exceed the extension end of the first fitting part, and the portion of the third bending part facing the first case does not exceed the extension end of the second fitting part;

9. The case for a battery as claimed in any one of claims 2 to 8, wherein the first case is integrally injection-molded with the insulating ring.

10. A battery, comprising:

a battery cell module;

the casing for a battery of any one of claims 1-9, the cell module being disposed within the sealed cavity.