Super capacitor shell and super capacitor

Abstract

The utility model discloses a super capacitor housing and a super capacitor. The super capacitor housing comprises a hollow housing main body. The upper and lower ends of the shell main body are respectively an open end and a closed end; chamfers are arranged at the positions, close to the closed end, of the bottom shell on the side walls of the periphery of the inner cavity of the shell body. A circular reinforcing rib and a plurality of linear reinforcing ribs are arranged on the upper side of a bottom shell at the closed end of the shell main body in an upward protruding manner; the circumferential edge of the circular reinforcing rib is connected with the peripheral side wall of the shell main body through a plurality of linear reinforcing ribs; the closed end of the shell main body is provided with a bottom shell lower side, and the bottom shell lower side is provided with an upward-concave cylindrical groove; an anti-explosion valve is arranged in a groove of a bottom shell at the closed end of the shell main body; the anti-explosion valve is located in the inner side direction of the annular reinforcing rib. According to the utility model, during the long-time vibration use process of the super capacitor monomer, the pole group does not shake up and down in the vertical direction, and serious poor contact does not occur.

Description

Technical Field

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

[0002] Supercapacitors have outstanding advantages such as high power density, wide temperature range, long service life, maintenance-free operation, and safety and reliability, and are widely used in wind turbine pitch control, automotive start-stop systems, military electronics, and other fields.

[0003] A single supercapacitor cell mainly consists of a casing, a cover, electrodes, and electrolyte.

[0004] Among them, the shell, as an important component of the supercapacitor unit, should have the function of fixing the electrode group to ensure that serious contact failure will not occur due to the up-and-down shaking of the electrode group during long-term vibration use.

[0005] In addition, the shell should have a certain strength and a suitable structural design to ensure that during use, there will be no problems such as bulging or uneven height caused by high-pressure gas generated during long-term use.

[0006] However, at present, there is no supercapacitor casing that can meet the above requirements and avoid the above technical problems after long-term use. Utility Model Content

[0007] The purpose of this invention is to address the technical deficiencies of existing technologies by providing a supercapacitor housing and a supercapacitor.

[0008] Therefore, this utility model provides a supercapacitor housing, which includes a hollow housing body;

[0009] The upper and lower ends of the main body of the shell are an open end and a closed end, respectively;

[0010] The inner cavity of the main body of the shell has chamfered edges on the side walls near the bottom shell at its closed end;

[0011] The closed end of the shell body has an annular reinforcing rib and multiple straight reinforcing ribs protruding upwards on the upper side of the bottom shell;

[0012] The circumferential edge of the annular reinforcing rib is connected to the four side walls of the shell body by multiple radially distributed straight reinforcing ribs;

[0013] The closed end of the main body of the shell has a bottom shell with a concave, cylindrical groove on the lower side;

[0014] An explosion-proof valve is installed in the groove of the bottom shell at the closed end of the main body of the shell.

[0015] The explosion-proof valve is located inside the annular reinforcing rib.

[0016] In addition, this utility model also provides a supercapacitor, which includes a supercapacitor housing as described above, and a capacitor electrode assembly;

[0017] The capacitor electrode assembly is located inside the supercapacitor casing.

[0018] As can be seen from the technical solution provided by this utility model above, compared with the prior art, this utility model provides a supercapacitor housing and a supercapacitor with a scientific structural design. The chamfer in the direction of the closed end can ensure that the electrode group will not shake vertically during long-term vibration use of the supercapacitor cell, and there will be no serious contact failure. It has great practical significance.

[0019] In addition, the supercapacitor shell of this invention has straight reinforcing ribs and circular reinforcing ribs in the closed end direction, which can increase the friction force, prevent the electrode assembly from rotating in the horizontal direction, and increase the strength of the closed end, making it less prone to deformation.

[0020] In addition, the supercapacitor shell of this invention has a recessed design at the closed end, which can effectively ensure that the shell will not deform or change in height due to the high-pressure gas inside.

[0021] In addition, the sealed end of the supercapacitor shell of this invention is designed with an explosion-proof valve to ensure that it will not explode violently due to excessive internal pressure. Attached Figure Description

[0022] Figure 1 An overall cross-sectional view of a supercapacitor housing provided by this utility model;

[0023] Figure 2 for Figure 1 A magnified view of part A shown in the diagram;

[0024] Figure 3 for Figure 1 A partially enlarged schematic diagram of part B shown;

[0025] Figure 4 A schematic diagram of the structure of a closed end of a supercapacitor housing provided by this utility model, wherein a circular reinforcing rib and multiple straight reinforcing ribs are provided in the first embodiment;

[0026] Figure 5 A schematic diagram of the structure of a supercapacitor housing with an explosion-proof valve in the second embodiment provided by this utility model;

[0027] In the diagram: 1-Chamfer, 2-Groove (i.e., recessed design), 3-Straight reinforcing rib, 4-Circular reinforcing rib, 5-Explosion-proof valve. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In the description of this utility model, it should 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", 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 are not intended to indicate or imply that the device or component 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.

[0030] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] See Figures 1 to 5 This utility model provides a supercapacitor housing, including a hollow housing body 100;

[0033] The upper and lower ends of the main body 100 are an open end and a closed end, respectively;

[0034] The inner cavity of the main body 100 has a chamfer 1 on the side wall near the bottom shell 101 at its closed end;

[0035] It should be noted that the open end of the supercapacitor housing refers to the end where the top of the supercapacitor housing has a vertical through opening; the closed end of the supercapacitor housing refers to the other end where the bottom of the supercapacitor housing has a closed structure (e.g., bottom shell), and the bottom shell of the housing body 100 is integrally formed with the four side walls of the housing body 100.

[0036] In terms of specific implementation, it should be noted that the opening end of the main body 100 of the supercapacitor housing is provided with a top cover;

[0037] The bottom surface and chamfer 1 of the top cover abut against the upper and lower ends of the capacitor electrode group placed inside the housing body 100 (i.e., in tight contact).

[0038] In a specific implementation, the inner cavity of the main body 100 has chamfers 1 around the bottom shell 101 near its closed end.

[0039] It should be noted that the chamfering range can be local (e.g., four chamfers symmetrically distributed in a cross shape) or the entire perimeter.

[0040] It should be noted that, for this utility model, the inner cavity of the housing body 100 is designed with a chamfer 1 near its closed end. The chamfer 1 provides vertical chamfer support for the capacitor electrode group inside the supercapacitor housing. The chamfer 1 and the cover (i.e., top cover) on the top of the supercapacitor housing cooperate to lock the capacitor electrode group from both the top and bottom directions, preventing the capacitor electrode group from shaking up and down in the vertical direction.

[0041] In this utility model, the closed end of the shell body 100 has an annular reinforcing rib 4 and a plurality of straight reinforcing ribs 3 protruding upward on the upper side (i.e., the inner side) of the bottom shell 101.

[0042] The circumferential edge of the annular reinforcing rib 4 is connected to the four side walls of the shell body 100 by multiple (e.g., 6) radially distributed straight reinforcing ribs 3.

[0043] In practice, the top surface heights of the annular reinforcing rib 4 and the straight reinforcing rib 3 are equal.

[0044] In practice, the circumferential edge of the annular reinforcing rib 4 is connected to the four side walls of the shell body 100 by six radially distributed straight reinforcing ribs 3.

[0045] In practice, multiple (e.g., 6) straight reinforcing ribs 3 are evenly distributed on the bottom shell 101 at the closed end of the main body 100.

[0046] In practice, the included angle between any two adjacent straight reinforcing ribs 3 is equal. For example, it is 60°.

[0047] In practice, the number of straight reinforcing ribs 3 should be 3-8, evenly distributed along the bottom of the shell.

[0048] In specific implementation, the annular reinforcing rib 4 is concentric with the bottom shell 101 of the main body 100;

[0049] In practice, the diameter of the annular reinforcing rib 4 is equal to 10%-90% of the bottom shell diameter of the main shell 100.

[0050] It should be noted that, for this utility model, the closed end of the cylindrical supercapacitor shell is designed with straight reinforcing ribs 3 and circular reinforcing ribs 4, which cooperate with the cover (i.e., top cover) on the top of the supercapacitor shell to help to tightly hold the capacitor electrode group, increase friction, prevent the capacitor electrode group from rotating in the horizontal direction, and avoid serious poor contact. At the same time, the straight reinforcing ribs 3 and circular reinforcing ribs 4 evenly distributed on the closed end of the supercapacitor shell can also ensure the strength of the closed end and prevent it from being deformed.

[0051] In this utility model, the closed end of the shell body 100 has a bottom shell 101 with a concave, cylindrical groove 2 on the lower side (i.e., the outer side).

[0052] It should be noted that, for this utility model, the groove 2 can prevent the bulging deformation of the closed end and the change in the height of the shell caused by the high pressure gas inside the capacitor shell, and ensure that the bulging height caused by the high pressure gas is lower than the height of the closed end, thereby ensuring that the height of the supercapacitor cell remains unchanged.

[0053] In practice, the diameter of the groove 2 is smaller than the diameter of the bottom shell of the main body 100.

[0054] In practice, the groove 2 and the bottom shell 101 of the main body 100 are concentric circles;

[0055] In practice, the vertical height of groove 2 is 1-5mm;

[0056] In practice, the diameter of the groove 2 is equal to 10%-80% of the bottom shell diameter of the main body 100.

[0057] In this utility model, an explosion-proof valve 5 is provided in the groove 2 of the bottom shell 101 at the closed end of the shell body 100.

[0058] In practice, the explosion-proof valve 5 is located inside the annular reinforcing rib 4.

[0059] In practice, the diameter of the explosion-proof valve 5 is smaller than the inner diameter of the annular reinforcing rib 4.

[0060] It should be noted that, in practice, the recess (i.e., groove 2) at the closed end of the supercapacitor casing has a Y-shaped, X-shaped, or I-shaped explosion-proof valve design. When there is too much high-pressure gas inside the casing, the explosion-proof valve opens to prevent violent rupture, thus ensuring that a violent explosion will not occur due to excessive internal pressure of the capacitor casing.

[0061] In this invention, the supercapacitor housing is a cylindrical housing.

[0062] In this utility model, chamfer 1 is an inclined surface, and one side of the inclined surface is connected to the vertical plane of the side wall of the inner cavity of the housing body 100.

[0063] The other side of the inclined surface is connected to the upper surface of the bottom shell 101 of the main body 100 of the housing (i.e., the horizontal plane at the bottom of the inner cavity, i.e., the inner side of the bottom shell 101).

[0064] The upper surface of the bottom shell 101 is a horizontally distributed surface.

[0065] In practice, the height of chamfer 1 gradually increases as the distance from the central axis of the supercapacitor casing increases.

[0066] In specific implementation, the angle between the inclined surface and the upper surface of the bottom shell 101 of the main body 100 is an obtuse angle, for example, 120°.

[0067] Based on the supercapacitor housing provided by the present invention, the present invention also provides a supercapacitor, which includes the supercapacitor housing as described above, and a capacitor electrode assembly.

[0068] The capacitor electrode assembly is located inside the supercapacitor casing.

[0069] After testing and verification, the cylindrical supercapacitor shell of this utility model has a scientific and reasonable structural design to meet the requirements of long-term (e.g., up to ten years) use of a single supercapacitor cell.

[0070] Compared with the prior art, this utility model provides a supercapacitor housing and a supercapacitor with a scientifically designed structure. The chamfer in the direction of the closed end can ensure that the electrode group will not shake vertically during long-term vibration use of the supercapacitor cell, and will not have serious contact problems, which has great practical significance.

[0071] In addition, the supercapacitor shell of this invention has straight reinforcing ribs and circular reinforcing ribs in the closed end direction, which can increase the friction force, prevent the electrode assembly from rotating in the horizontal direction, and increase the strength of the closed end, making it less prone to deformation.

[0072] In addition, the supercapacitor shell of this invention has a recessed design at the closed end, which can effectively ensure that the shell will not deform or change in height due to the high-pressure gas inside.

[0073] In addition, the sealed end of the supercapacitor shell of this invention is designed with an explosion-proof valve to ensure that it will not explode violently due to excessive internal pressure.

[0074] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A supercapacitor housing, characterized in that, Includes a hollow shell body (100); The upper and lower ends of the main body of the shell (100) are an open end and a closed end, respectively; The inner cavity of the main body (100) has a chamfer (1) on the side wall near the bottom shell (101) at its closed end. The closed end of the shell body (100) has a bottom shell (101) with an annular reinforcing rib (4) and a plurality of straight reinforcing ribs (3) protruding upward. The circumferential edge of the annular reinforcing rib (4) is connected to the four sides of the shell body (100) by multiple radially distributed straight reinforcing ribs (3); The closed end of the housing body (100) has a bottom shell (101) with a concave cylindrical groove (2) on the lower side. An explosion-proof valve (5) is provided in the groove (2) of the bottom shell (101) at the closed end of the housing body (100). The explosion-proof valve (5) is located inside the annular reinforcing rib (4).

2. The supercapacitor housing as described in claim 1, characterized in that, The opening end of the housing body (100) is provided with a top cover; The bottom surface and chamfer (1) of the top cover abut against the upper and lower ends of the capacitor electrode assembly placed inside the main body (100) of the housing.

3. The supercapacitor housing as described in claim 1, characterized in that, The inner cavity of the main body (100) has chamfers (1) around the bottom shell (101) near its closed end.

4. The supercapacitor housing as described in claim 1, characterized in that, The top surface heights of the circular reinforcing rib (4) and the straight reinforcing rib (3) are equal; The circumferential edge of the annular reinforcing rib (4) is connected to the four sides of the shell body (100) by six radially distributed straight reinforcing ribs (3); Multiple straight reinforcing ribs (3) are evenly distributed on the bottom shell (101) at the closed end of the shell body (100); The included angle between any two adjacent straight reinforcing ribs (3) is equal.

5. The supercapacitor housing as described in claim 1, characterized in that, The circular reinforcing rib (4) is concentric with the bottom shell (101) of the main shell (100); The diameter of the annular reinforcing rib (4) is equal to 10%-90% of the bottom shell diameter of the shell body (100).

6. The supercapacitor housing as described in claim 1, characterized in that, The diameter of the groove (2) is smaller than the diameter of the bottom shell of the main body (100); The groove (2) and the bottom shell (101) of the main body (100) are concentric circles; The diameter of the groove (2) is equal to 10%-80% of the bottom shell diameter of the main body (100).

7. The supercapacitor housing as described in claim 1, characterized in that, The diameter of the explosion-proof valve (5) is smaller than the inner diameter of the annular reinforcing rib (4).

8. The supercapacitor housing according to any one of claims 1 to 7, characterized in that, The chamfer (1) is an inclined surface, one side of which is connected to the vertical plane of the side wall of the inner cavity of the shell body (100); The other side of the inclined surface is connected to the upper surface of the bottom shell (101) of the main body of the shell (100); The upper surface of the bottom shell (101) is a horizontally distributed surface.

9. The supercapacitor housing as described in claim 8, characterized in that, The height of the chamfer (1) gradually increases as the distance from the central axis of the supercapacitor casing increases; The angle between the inclined surface and the upper surface of the bottom shell (101) of the main body (100) is an obtuse angle.

10. A supercapacitor, characterized in that, It includes a supercapacitor housing as described in any one of claims 1 to 9, and a capacitor electrode assembly; The capacitor electrode assembly is located inside the supercapacitor casing.

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