housing components and battery

Abstract

This utility model provides a housing assembly and a battery. The housing assembly includes a housing, a pressure ring, terminals, and an insulating sealing structure. The pressure ring is located on one side of the housing in the thickness direction, and a receiving groove is provided on the side of the pressure ring away from the housing. The terminals include a first column and a second column. The first column is spaced apart on the other side in the housing direction, and the second column passes through the housing and the pressure ring. One end of the second column is connected to the first column, and the other end of the second column is adapted to be deformed under pressure to form a fixed column to fill the receiving groove. The insulating sealing structure is spaced between the terminals and the housing. The end face of the fixed column away from the housing and the end face of the pressure ring away from the housing can jointly serve as the test surface for the test terminals of the testing device, increasing the contact area between the housing assembly and the test terminals in this utility model embodiment. When the battery is subsequently tested using the testing device, it is convenient for the test terminals of the testing device to come into contact with the terminals for testing.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a housing assembly and a battery. Background Technology

[0002] Existing steel-cased batteries include cells, casing assemblies, and covers. The casing assembly includes an insulating and sealing structure, a casing, and terminals. The terminals pass through the casing and are connected to the casing by a riveting process. The insulating and sealing structure is used to insulate and seal the terminals and the casing.

[0003] To ensure that the insulating and sealing structure has certain insulating and sealing performance, it is necessary to allow a certain amount of deformation during the assembly process. Therefore, the terminals of the housing components in related technologies are assembled using a riveting process. However, the diameter of the riveted end of the terminal is usually too small. When the battery is subsequently tested in batches using testing equipment (such as formation equipment and capacity testing equipment), it is not convenient for the test terminals of the testing equipment to come into contact with the terminal for testing. Utility Model Content

[0004] This utility model provides a housing assembly and a battery to solve the problem in related technologies where the diameter of the riveted end of the terminal post is too small after the riveting process, making it inconvenient to conduct batch testing of the battery using a testing device, and the test terminals of the testing device abut against the terminal post for testing.

[0005] The housing assembly of this utility model embodiment includes: case, A pressure ring is provided on the outside of the housing, and a receiving groove is provided on the side of the pressure ring away from the housing; The pole post includes a first column and a second column, wherein the first column is disposed on the inner side of the housing; The second column passes through the housing and the pressure ring. One end of the second column is connected to the first column, and the other end of the second column is adapted to be deformed under pressure to form a fixed column, which is accommodated in the receiving groove. An insulating and sealing structure is spaced between the pole post and the housing.

[0006] The housing assembly of this utility model has a receiving groove on the side of the pressure ring away from the housing, and the other end of the second column (that is, the riveting end) is adapted to be deformed under pressure to form a fixed column to fill the receiving groove. Therefore, the end face of the fixing post away from the housing and the end face of the pressure ring away from the housing can jointly serve as the test surface of the test terminal of the test device, which increases the contact area between the housing assembly and the test terminal of this utility model embodiment, and facilitates the positioning of the electrode post by the test terminal of the test device when the battery is batch tested using the test device.

[0007] In some embodiments, in the axial direction of the pole post, the end face of the pressure ring away from the housing is flush with the end face of the fixing post away from the housing.

[0008] In some embodiments, the ratio between the diameter of the fixing column and the diameter of the receiving groove is 0.9-1.0.

[0009] In some embodiments, the outer diameter of the pressure ring is greater than or equal to the diameter of the first column.

[0010] In some embodiments, the wall thickness of the receiving groove is greater than or equal to the thickness of the housing.

[0011] In some embodiments, the pressure ring includes the pressure plate and the extension ring, wherein the extension ring is disposed on the side of the pressure plate away from the housing in the axial direction of the pole post, and the extension ring extends in a direction away from the housing to define a receiving groove for accommodating the fixing post. The thickness of the pressure plate is the same as the thickness of the shell.

[0012] In some embodiments, the insulating sealing structure includes an insulating gasket and a sealing ring; The insulating gasket is spaced between the outer periphery of the second column and the housing, and between the housing and the pressure ring; The sealing ring is spaced between the housing and the first column.

[0013] In some embodiments, the insulating gasket is an integral structure, including a first gasket and a second gasket disposed on the side of the first gasket away from the sealing ring; The first washer is sealed and fitted onto the second column, and the outer circumference of the first washer is sealed and connected to the housing; the second washer is sealed and connected to the pressure ring and the outer side of the housing; the outer diameter of the second washer is larger than the outer diameter of the pressure ring; The outer diameter of the sealing ring is larger than the outer diameter of the first column.

[0014] In some embodiments, the insulating gasket and the sealing ring are made of PFA; The insulating washer partially covers the outer periphery of the pressure ring; The sealing ring partially covers the outer periphery of the first column.

[0015] This utility model also provides a battery.

[0016] The battery of this utility model embodiment includes the housing assembly as described in the above embodiment.

[0017] The battery of this utility model has a receiving groove on the side of the pressure ring of the housing assembly away from the housing, and the other end of the second column (that is, the riveting end) is adapted to be deformed under pressure to form a fixed column to fill the receiving groove.

[0018] Therefore, the end face of the fixed post away from the housing and the end face of the pressure ring away from the housing can together serve as the test surface of the test terminal of the test device. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the housing assembly according to an embodiment of the present utility model; Figure 2 This is a test schematic diagram of the battery according to an embodiment of the present invention.

[0021] In the picture: 100. Housing assembly; 1. Shell; 2. Pressure ring; 201. Pressure plate; 202. Extension ring; 203. Receiving groove; 3. Pole post; 301. First post; 302. Second post; 303. Fixed post; 4. Insulated and sealed structure; 401, Insulating washer; 4011, First washer; 4012, Second washer; 402. Sealing ring; 200. Battery; 5. Shell; 6. Test terminals. Detailed Implementation

[0022] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal encapsulation of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] To address the issue that the diameter of the riveted end of the terminal post 3 is too small after the riveting process in the related technology, making it inconvenient for the test terminals of the test device to abut against the terminal post during subsequent battery testing, this paper proposes a new method to address the problem of the test terminal of the terminal post being too small after the riveting process in the related technology.

[0026] This utility model provides a housing assembly 100.

[0027] The housing assembly 100 of this utility model embodiment includes a housing 1, a pressure ring 2, an electrode post 3, and an insulating and sealing structure 4.

[0028] The pressure ring 2 is located on the outer side of the housing 1 in the thickness direction, and the side of the pressure ring 2 away from the housing 1 is provided with a receiving groove 203; The pole post 3 includes a first post 301 and a second post 302. The first post 301 is located on the second side in the thickness direction of the housing 1. The second post 302 passes through the housing 1 and the pressure ring 2. One end of the second post 302 is connected to the first post 301. The other end of the second post 302 is adapted to be deformed under pressure to form a fixed post 303 to fill the receiving groove 203. An insulating sealing structure 4 is spaced between the pole post 3 and the housing 1.

[0029] The housing assembly 100 of this utility model has a receiving groove 203 on the side of the pressure ring 2 away from the housing 1, and the other end (i.e., the riveting end) of the second column 302 is adapted to be deformed under pressure to form a fixed column 303 to fill the receiving groove 203. Therefore, the end face of the fixing post 303 away from the housing 1 and the end face of the pressure ring 2 away from the housing 1 can jointly serve as the test surface of the test terminal 6 of the test device, which increases the contact area between the housing assembly 100 and the test terminal 6 in this embodiment of the present invention. When the battery 200 is subsequently tested using the test device, it is convenient for the test terminal 6 of the test device to come into contact with the pole post 3 for testing.

[0030] The following is in conjunction with the appendix Figure 1 The housing assembly 100 of this utility model is described in an embodiment.

[0031] The housing assembly 100 of this utility model embodiment includes a housing 1, a pressure ring 2, an electrode post 3, and an insulating and sealing structure 4.

[0032] As shown in the figure, the pressure ring 2 is located on the outer side of the shell 1 in the thickness direction, and the side of the pressure ring 2 away from the shell 1 is provided with a receiving groove 203; The pole post 3 includes a first post 301 and a second post 302. The first post 301 is located on the inner side of the housing 1 in the thickness direction. The second post 302 passes through the housing 1 and the pressure ring 2. In order to facilitate the passage of the second post 302 through the housing 1 and the pressure ring 2, the housing 1 and the pressure ring 2 are provided with a through hole for the second post 302 to pass through. One end of the second column 302 is connected to the first column 301, and the other end of the second column 302 is adapted to be deformed under pressure to form a fixed column 303 to fill the receiving groove 203. An insulating sealing structure 4 is arranged between the terminal post 3 and the housing 1. By arranging the insulating sealing structure 4 between the terminal post 3 and the housing 1, an insulating and sealed connection between the terminal post 3 and the housing 1 can be achieved through the insulating sealing structure 4 being spaced between the terminal post 3 and the housing 1. On the one hand, this can prevent the electrolyte in the battery 200 of the housing assembly 100 of this utility model from leaking out; on the other hand, it can prevent the battery 200 of the housing assembly 100 of this utility model from short-circuiting, which can greatly improve the safety of the housing assembly 100 of this utility model.

[0033] In some embodiments, such as Figure 1 As shown, in the axial direction of the pole post 3, the end face of the pressure ring 2 away from the housing 1 is flush with the end face of the fixing post 303 away from the housing 1.

[0034] The housing assembly 100 of this utility model increases the area of ​​the test surface of the housing assembly 100 by making the end face of the pressure ring 2 away from the housing 1 and the end face of the fixing post 303 away from the housing 1 flush. This makes it easier for the test terminals 6 of the test device to come into contact with the pole post 3 for testing when the battery 200 is tested using the test device.

[0035] In some embodiments, the ratio between the diameter of the fixing post 303 and the diameter of the receiving groove 203 is 0.9-1.0.

[0036] By setting the ratio between the diameter of the fixing post 303 and the diameter of the receiving groove 203 to 0.9-1.0, on the one hand, the end face of the pressure ring 2 away from the housing 1 and the end face of the fixing post 303 away from the housing 1 can be used together as the test surface of the test terminal 6 of the test device, which increases the contact area between the housing assembly 100 and the test terminal 6 in this embodiment of the invention, making it easier for the test terminal 6 of the test device to position the pole post 3 when the battery 200 is tested by the test device in the future; on the other hand, it can reduce the processing and assembly difficulty of the fixing post 303 and the receiving groove 203 of the pressure ring.

[0037] In some embodiments, the outer diameter of the pressure ring 2 is greater than or equal to the diameter of the first column 301.

[0038] It is understandable that the relationship between the outer diameter of the pressure ring 2 and the diameter of the first column 301 can be determined by those skilled in the art according to actual needs.

[0039] Preferably, the outer diameter of the pressure ring 2 is the same as the diameter of the first column 301. By setting the outer diameter of the pressure ring 2 to be the same as the diameter of the first column 301, when the pole post 3 is riveted, the force on the pressure ring 2, the housing 1 and the first column 301 can be uniform and the deformation can be consistent.

[0040] In some embodiments, the wall thickness of the receiving groove 203 is greater than or equal to the thickness of the housing 1.

[0041] It is understandable that the relationship between the wall thickness of the receiving groove 203 and the thickness of the shell 1 can be determined by those skilled in the art according to actual needs.

[0042] In some embodiments, the pressure ring 2 includes a pressure plate 201 and an extension ring 202. In the axial direction of the pole post 3, the extension ring 202 is disposed on the side of the pressure plate 201 away from the housing 1, and the extension ring 202 extends in a direction away from the housing 1 to define a receiving groove 203 for receiving the fixing post 303.

[0043] Therefore, the end face of the fixed post 303 located in the receiving groove 203 away from the housing 1 and the end face of the pressure ring 2 away from the housing 1 can jointly serve as the test surface with the test terminal 6 of the test device, which increases the contact area between the housing assembly 100 and the test terminal 6 in this embodiment of the present invention, and facilitates the positioning of the terminal 6 of the test device with the electrode post 3 when the battery 200 is tested by the test device in the future.

[0044] Preferably, the pressure plate 201 and the extension ring 202 are an integral structure, which facilitates the processing of the pressure ring 2.

[0045] As mentioned above, a through hole for the second column 302 to pass through can be provided on the pressure plate 201.

[0046] Furthermore, the thickness of the pressure plate 201 is the same as the thickness of the shell 1, so that the pressure plate 201 and the shell 1 can be made of the same material, saving costs and facilitating processing.

[0047] In some embodiments, such as Figure 1 As shown, the insulating sealing structure 4 includes an insulating gasket 401 and a sealing ring 402. The insulating gasket 401 is spaced between the outer periphery of the second column 302 and the housing 1, and between the housing 1 and the pressure ring 2. The sealing ring 402 is spaced between the housing 1 and the first column 301.

[0048] In other words, the insulating and sealing structure 4 of the housing assembly 100 in this embodiment of the present invention includes two parts: the first part is an insulating gasket 401, and the second part is a sealing ring 402.

[0049] That is, the insulating gasket 401 is an integral structure, including a first gasket 4011 and a second gasket 4012 disposed on the side of the first gasket 4011 away from the sealing ring 402; The first washer 4011 is sealed and fitted onto the second column 302, and the outer circumference of the first washer 4011 is sealed and connected to the housing 1; the second washer 4012 is sealed and connected to the pressure ring 2 and the outer side of the housing 1; the outer diameter of the second washer 4012 is larger than the outer diameter of the pressure ring 2. The outer diameter of the sealing ring 402 is larger than the outer diameter of the first column 301.

[0050] In some embodiments, the insulating gasket 401 and the sealing ring 402 are made of PFA; It is understandable that PFA has excellent chemical stability, good heat resistance, low coefficient of friction, high electrical insulation properties, processability, good flexibility and resilience.

[0051] By setting both the insulating gasket 401 and the sealing ring 402 to PFA, the insulating gasket 401 and the sealing ring 402 can have good insulation and sealing performance.

[0052] Meanwhile, the insulating gasket 401 partially covers the outer periphery of the pressure ring 2; the sealing ring 402 partially covers the outer periphery of the first column 301.

[0053] This can further fix the pressure ring 2 and the first column 301 to prevent displacement.

[0054] Meanwhile, by setting the insulating sealing structure 4 into two parts, the housing assembly 100 of this utility model embodiment can be easily assembled.

[0055] This utility model also provides a battery 200.

[0056] The following is in conjunction with the appendix Figure 2 The battery 200 of this utility model is described in an embodiment.

[0057] The battery 200 of this utility model embodiment includes the housing assembly 100 and the battery cell 5 described in the above embodiment.

[0058] like Figure 2 As shown, the housing of battery 200 serves as housing 1 in housing assembly 100.

[0059] The battery 200 of this utility model embodiment has a receiving groove 203 on the side of the pressure ring 2 of the housing assembly 100 away from the housing 1, and the other end (that is, the riveting end) of the second column 302 is adapted to be deformed under pressure to form a fixed column 303 to fill the receiving groove 203.

[0060] Therefore, the end face of the fixed post 303 away from the housing 1 and the end face of the pressure ring 2 away from the housing 1 can together serve as the test surface of the test terminal 6 of the test device.

[0061] like Figure 2 As shown, the housing assembly 100 of the battery 200 in this embodiment of the present invention can provide a larger test surface for the test terminals 6 of the test device, so that the test terminals 6 of the test device can come into contact with the poles 3 for testing.

[0062] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A housing assembly, characterized by, include: Shell (1) A pressure ring (2) is provided on the outside of the housing (1), and a receiving groove (203) is provided on the side of the pressure ring (2) away from the housing (1). The pole post (3) includes a first post (301) and a second post (302), wherein the first post (301) is disposed on the inner side of the housing (1); The second column (302) passes through the housing (1) and the pressure ring (2). One end of the second column (302) is connected to the first column (301), and the other end of the second column (302) is adapted to be deformed under pressure to form a fixed column (303). The fixed column (303) is accommodated in the receiving groove (203). An insulating sealing structure (4) is spaced between the pole post (3) and the housing (1).

2. The housing assembly of claim 1, wherein, In the axial direction of the pole post (3), the end face of the pressure ring (2) away from the housing (1) is flush with the end face of the fixing post (303) away from the housing (1).

3. The housing assembly of claim 1 or 2, wherein, The ratio between the diameter of the fixed column (303) and the diameter of the receiving groove (203) is 0.9-1.

0.

4. The housing assembly of claim 1, wherein, The outer diameter of the pressure ring (2) is greater than or equal to the diameter of the first column (301).

5. The housing assembly of claim 1, wherein, The wall thickness of the receiving groove (203) is greater than or equal to the thickness of the shell.

6. The housing assembly of claim 5, wherein, The pressure ring (2) includes a pressure plate (201) and an extension ring (202). In the axial direction of the pole post (3), the extension ring (202) is located on the side of the pressure plate (201) away from the housing (1), and the extension ring (202) extends in a direction away from the housing (1) to define a receiving groove (203) for accommodating the fixing post (303). The thickness of the pressure plate (201) is the same as the thickness of the housing (1).

7. The housing assembly of claim 1, wherein, The insulating sealing structure (4) includes an insulating gasket (401) and a sealing ring (402). The insulating washer (401) is spaced between the outer periphery of the second column (302) and the housing (1), and between the housing (1) and the pressure ring (2); The sealing ring (402) is spaced between the housing (1) and the first column (301).

8. The housing assembly of claim 7, wherein, The insulating gasket (401) is an integral structure, including a first gasket and a second gasket disposed on the side of the first gasket away from the sealing ring; The first gasket is sealed and fitted onto the second column (302), and the outer periphery of the first gasket is sealed and connected to the housing (1); the second gasket is sealed and connected to the pressure ring (2) and the outer side of the housing (1); the outer diameter of the second gasket is larger than the outer diameter of the pressure ring (2); The outer diameter of the sealing ring (402) is larger than the outer diameter of the first column (301).

9. The housing assembly of claim 8, wherein, The insulating gasket (401) and the sealing ring (402) are made of PFA; The insulating gasket (401) partially covers the outer periphery of the pressure ring (2); The sealing ring (402) partially covers the outer periphery of the first column (301).

10. A battery, characterized by Includes the housing assembly (100) as described in any one of claims 1-9.

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