CN214898790U

CN214898790U - Casing external member and power battery

Info

Publication number: CN214898790U
Application number: CN202120943099.4U
Authority: CN
Inventors: 励建炬; 范洪斌
Original assignee: Shenzhen Kedali Industry Co ltd
Current assignee: Shenzhen Kedali Industry Co ltd; Shenzhen Kedali Ind Co Ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-11-26
Anticipated expiration: 2031-04-30

Abstract

The utility model discloses a casing external member and power battery relates to power battery technical field. The casing kit comprises a shell, a sealing assembly and a pole. The holding tank is injectd to the shell, and the diapire of shell is equipped with the intercommunicating pore. The sealing assembly is matched in the communication hole, and two ends of the sealing assembly are respectively abutted against the inner wall and the outer wall of the shell. The utmost point post is worn to establish in seal assembly, and the both ends of utmost point post butt seal assembly's both ends respectively. Because utmost point post and seal assembly all set up in the intercommunicating pore on the diapire of shell to can realize that the casing external member realizes power input and output by the bottom, can improve the application scope of casing external member. The two ends of the pole are respectively abutted to the two ends of the sealing assembly, so that the material cost and the production cost can be effectively reduced. The casing external member need not to adopt welding process and can realize the fixed reliable connection of utmost point post and shell to can avoid the metal welding slag adhesion that welding process produced in the holding tank, ensure the safety in utilization of casing external member.

Description

Casing external member and power battery

Technical Field

The utility model relates to a power battery technical field especially relates to a casing external member and power battery.

Background

The pole on the existing battery is generally arranged on the end cover, and the input and the output at the bottom of the battery are difficult to realize. When the pole is installed, a plurality of sealing structures are often required to be arranged so as to better ensure the sealing installation of the pole on a shell or an end cover of the battery, but the assembly process and the number of parts of the battery are easily increased by the plurality of sealing structures, and the production cost of the battery is improved. Meanwhile, in order to ensure the sealing effect, welding is often adopted in the prior art, but metal welding slag is inevitably reserved inside the battery in the welding process, so that the battery is not easy to clean and is more prone to causing damage to the safety of the battery.

Therefore, a casing kit and a power battery are needed, which can improve the application range, reduce the production cost, and improve the use safety.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a casing external member can improve application scope, reduction in production cost, improves the safety in utilization.

Another object of the utility model is to provide a power battery can improve power battery's application scope, reduction in production cost improves the security.

For realizing the above technical effect, the technical scheme of the utility model as follows:

a housing kit comprising: the outer shell defines a containing groove, and the bottom wall of the outer shell is provided with a communication hole; a seal assembly fitted in the communication hole, both ends of the seal assembly abutting against an inner wall and an outer wall of the housing, respectively; the pole column penetrates through the sealing assembly, and two ends of the pole column are respectively abutted to two ends of the sealing assembly.

Further, the terminal is riveted to the outer shell at one end of the terminal located in the accommodating groove.

Further, the seal assembly includes: a seal member fitted in the communication hole, one end of the seal member abutting against a bottom wall of the housing; and the support piece is sleeved on the pole and abutted against the inner wall of the shell.

Furthermore, the other end of the sealing element extends into the accommodating groove, and the supporting element is sleeved on the sealing element.

Further, a first flange is arranged on the sealing element and abuts against the bottom wall of the shell.

Further, the top wall of the support and the end face of the seal are flush.

Furthermore, two ends of the pole are respectively provided with a second flange, and the two second flanges are respectively abutted to the sealing assembly.

Further, at least one second flange is provided with a sealing bulge, and the sealing bulge can abut against and press the sealing assembly.

Further, the sealing assembly is an insulating structure.

A power cell comprising the housing assembly as described above.

The utility model discloses a beneficial effect does: because utmost point post and seal assembly all set up in the intercommunicating pore on the diapire of shell to can realize that the casing external member realizes power input and output by the bottom, can improve the application scope of casing external member. Simultaneously, the both ends of utmost point post are the both ends of butt seal assembly respectively, can realize reliable fixed connection and the sealing connection of utmost point post on the shell simultaneously to can reduce the part quantity when utmost point post is installed on the shell, reduce the assembly process between utmost point post, seal assembly and the shell simultaneously, effectively reduced material cost and manufacturing cost. Furthermore, the utility model discloses a casing external member need not to adopt welding process can realize the fixed reliable connection of utmost point post and shell to can avoid the metal welding slag adhesion that welding process produced in the holding tank, both reduced welding slag cleaning process, also can prevent to leave over the safety in utilization that the welding slag leads to the battery in the casing external member, thereby ensured the safety in utilization of casing external member.

The utility model discloses an another beneficial effect does: according to the utility model discloses a power battery owing to have the casing external member in the foregoing, can improve power battery's application scope, reduction in production cost improves the security.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic view of an internal structure of a housing kit according to an embodiment of the present invention;

FIG. 2 is a schematic view of a portion of the enlarged structure at A in FIG. 1;

fig. 3 is a cross-sectional view of the pole before riveting according to the embodiment of the present invention.

Reference numerals

1. A housing; 11. accommodating grooves;

2. a seal assembly; 21. a seal member; 211. a first flange; 22. a support member;

3. a pole column; 31. a second flange; 32. and sealing the protrusion.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

It will be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing and simplifying the invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The specific structure of the housing kit according to the embodiment of the present invention is described below with reference to fig. 1 to 3.

As shown in fig. 1-3, fig. 1 discloses a housing kit comprising a housing 1, a sealing assembly 2 and a pole 3. The housing 1 defines a receiving groove 11, and the bottom wall of the housing 1 is provided with a communication hole. The seal assembly 2 is fitted in the communication hole, and both ends of the seal assembly 2 abut against the inner wall and the outer wall of the housing 1, respectively. The pole 3 is arranged in the sealing component 2 in a penetrating way, and two ends of the pole 3 are respectively abutted against two ends of the sealing component 2.

It can be understood that, because the post 3 and the sealing component 2 are both arranged in the communication hole on the bottom wall of the casing 1, the power input and output of the casing kit from the bottom can be realized, and the application range of the casing kit can be improved. Simultaneously, the both ends of utmost point post 3 are the both ends of butt seal assembly 2 respectively, can realize the reliable fixed connection and the sealing connection of utmost point post 3 on shell 1 simultaneously to can reduce the part quantity when utmost point post 3 is installed on shell 1, reduce the assembly process between utmost point post 3, seal assembly 2 and the shell 1 simultaneously, effectively reduced material cost and manufacturing cost. In addition, the casing external member of this embodiment need not to adopt welding process to realize utmost point post 3 and the fixed reliable connection of shell 1 to can avoid the metal welding slag adhesion that welding process produced in holding tank 11, both reduce welding slag cleaning process, also can prevent to leave over the safety in utilization that the welding slag leads to the battery in the casing external member, thereby ensure the safety in utilization of casing external member.

In some embodiments, as shown in fig. 2, the end of the pole 3 located in the receiving groove 11 is riveted to the housing 1.

It can be understood that under the prerequisite that does not adopt welding process, utmost point post 3 rivets can extrude seal assembly 2 when the inner wall of shell 1 for utmost point post 3's both ends all extrude seal assembly 2 and connect in shell 1 firmly, thereby both guaranteed utmost point post 3 and shell 1's firm connection, also guaranteed utmost point post 3 and shell 1's sealing connection.

Specifically, as shown in fig. 2 and 3, the terminal 3 can be riveted to the housing through two processes, namely pre-riveting and spin-riveting, at one end of the receiving groove 11.

In some embodiments, as shown in fig. 2, the seal assembly 2 includes a seal 21 and a support 22. The seal 21 is fitted in the communication hole, and one end of the seal 21 abuts against the bottom wall of the housing 1. The support member 22 is sleeved on the pole 3 and abuts against the inner wall of the housing 1.

It can be understood that, with seal assembly 2 split into sealing member 21 and support piece 22, can be better be convenient for the installation of seal assembly 2 in the mounting hole, the tip of utmost point post 3 also can butt extrusion support piece 22 simultaneously to play better sealed effect to support piece 22 and the clearance of sealing member 21, thereby reduced the processing degree of difficulty of casing external member, reduced the processing cost of casing external member.

In some embodiments, as shown in fig. 2, the other end of the sealing member 21 extends into the receiving groove 11, and the supporting member 22 is disposed on the sealing member 21.

It will be appreciated that, by the above-described structural arrangement, it can be better ensured that the end portions of the pole 3 simultaneously abut and press the sealing member 21 and the support member 22, thereby ensuring the sealing connection between the sealing member 21, the support member 22 and the pole 3. Furthermore, the end of the seal 21 also facilitates the pre-installation of the support 22 inside the casing, thus facilitating the assembly efficiency of the casing kit.

In some embodiments, as shown in fig. 2, the seal 21 is provided with a first flange 211, the first flange 211 abutting the bottom wall of the housing 1.

It can be appreciated that the first flange 211 can facilitate the end fitting of the pole 3 and the bottom wall fitting of the housing 1, thereby facilitating the riveted connection between the pole 3, the sealing member 21 and the casing, and improving the connection stability and sealing performance thereof.

In some embodiments, as shown in fig. 2, the top wall of the support 22 is flush with the end face of the seal 21.

It can be understood that, through the above-mentioned structural arrangement, when the post 3 is riveted to the support 22 and the sealing member 21 at the same time, a gap can be prevented from being generated between the post 3 and one of the support 22 or the sealing member 21, so that the riveting effect of the post 3 and the sealing assembly 2 can be better ensured, and the connection stability and the sealing performance are improved.

In some embodiments, as shown in fig. 2, the two ends of the pole 3 are respectively provided with a second flange 31, and the two second flanges 31 respectively abut against the sealing assembly 2.

It will be appreciated that the two second flanges 31 provide both a better fixing and a better sealing effect.

In some embodiments, at least one of the second flanges 31 is provided with a sealing protrusion 32, the sealing protrusion 32 being capable of abutting and compressing the seal assembly 2.

It can be understood that, in the riveting process of the pole 3, the sealing protrusion 32 can abut against and press the sealing component 2, so that the sealing performance between the pole 3 and the sealing component 2 can be further improved, and the use reliability of the casing kit is improved.

In some embodiments, the seal assembly 2 is an insulating structure.

It can be understood that the insulating structure can provide an insulating effect between the pole 3 and the housing 1, so that safe and normal operation of the housing kit can be well guaranteed.

The utility model also discloses a power battery, casing external member including before.

According to the utility model discloses power battery owing to have the casing external member before, can improve power battery's application scope, reduction in production cost improves the security.

Example (b):

a housing kit according to an embodiment of the invention is described below with reference to fig. 1-3.

The housing kit of the present embodiment comprises a housing 1, a sealing assembly 2 and a pole 3. The housing 1 defines a receiving groove 11, and the bottom wall of the housing 1 is provided with a communication hole. The seal assembly 2 is fitted in the communication hole, and both ends of the seal assembly 2 abut against the inner wall and the outer wall of the housing 1, respectively. The pole 3 is arranged in the sealing component 2 in a penetrating way, and two ends of the pole 3 are respectively abutted against two ends of the sealing component 2. One end of the pole 3 located in the accommodating groove 11 is riveted to the housing 1. The seal assembly 2 comprises a seal 21 and a support 22. The seal 21 is fitted in the communication hole, and one end of the seal 21 abuts against the bottom wall of the housing 1. The support member 22 is sleeved on the pole 3 and abuts against the inner wall of the housing 1. The other end of the sealing element 21 extends into the receiving groove 11, and the supporting element 22 is sleeved on the sealing element 21. The seal 21 is provided with a first flange 211, the first flange 211 abutting against the bottom wall of the housing 1. The top wall of the support 22 is flush with the end face of the seal 21. The two ends of the pole 3 are respectively provided with a second flange 31, and the two second flanges 31 are respectively abutted against the sealing component 2. At least one of the second flanges 31 is provided with a sealing projection 32, which sealing projection 32 is able to abut and compress the sealing assembly 2.

In the description herein, references to the description of "some embodiments," "other embodiments," or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. A housing kit, comprising:

the outer shell (1), the outer shell (1) limits a containing groove (11), and the bottom wall of the outer shell (1) is provided with a communication hole;

the sealing assembly (2) is matched in the communication hole, and two ends of the sealing assembly (2) are respectively abutted against the inner wall and the outer wall of the shell (1);

the pole column (3) is arranged in the sealing assembly (2) in a penetrating mode, and two ends of the pole column (3) are respectively abutted to two ends of the sealing assembly (2).

2. The casing kit according to claim 1, characterized in that the end of the pole (3) located within the receiving groove (11) is riveted to the outer shell (1).

3. The casing kit according to claim 1, characterized in that the sealing assembly (2) comprises:

a seal (21), the seal (21) being fitted in the communication hole, one end of the seal (21) abutting against a bottom wall of the housing (1);

the supporting piece (22), the support piece (22) cover is established on utmost point post (3) and butt the inner wall of shell (1).

4. A casing kit according to claim 3, characterized in that the other end of the sealing element (21) extends into the receiving groove (11), the support element (22) being fitted over the sealing element (21).

5. A casing kit according to claim 3, characterized in that the seal (21) is provided with a first flange (211), which first flange (211) abuts the bottom wall of the housing (1).

6. A casing kit according to claim 3, characterized in that the top wall of the support (22) and the end face of the seal (21) are flush.

7. The casing kit according to claim 1, characterized in that the two ends of the pole (3) are provided with a second flange (31), respectively, and the two second flanges (31) abut against the sealing assembly (2), respectively.

8. Casing kit according to claim 7, characterized in that at least one of said second flanges (31) is provided with a sealing projection (32), said sealing projection (32) being able to abut and compress said sealing assembly (2).

9. A casing kit according to claim 1, characterized in that the sealing assembly (2) is an insulating structure.

10. A power cell comprising the housing assembly of any one of claims 1-9.