Cover plate of super capacitor

Abstract

The utility model discloses a super capacitor cover plate which comprises a cover plate body, the top of the cover plate body is provided with a clamping groove, a sealing plate is installed in the clamping groove, the interior of the cover plate is fixedly formed through injection molding materials, a negative pole is installed on the inner side of the sealing plate, and a negative switching piece is installed at the bottom of the outer wall of the negative pole. A sealing ring is also mounted on the outer wall of the negative pole, and the top of the sealing ring extends to the inner side of the clamping groove. According to the utility model, the threaded column is connected with the aluminum shell through threaded connection instead of traditional laser welding, so that the cover plate is simple and convenient to mount, and the positive and negative electrodes of the capacitor are mounted reversely when the capacitor is connected in series or in parallel; the positive electrode and the negative electrode of the capacitor can be changed only by disassembling the cover plate through the thread structure, and the problems that in the prior art, the cover plate is directly scrapped due to laser welding, and a large amount of materials are wasted are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of supercapacitors, and specifically relates to a supercapacitor cover plate. Background Technique

[0002] A supercapacitor is a new type of energy storage component, which is widely used in fields such as wind turbine pitch systems, new energy, transportation, and industry. It has the advantages of fast charge and discharge speed, high power density, large capacity, support for large current charge and discharge, long cycle life, and environmental protection and pollution-free. It can provide rapid energy release to meet high-power requirements.

[0003] The rated voltage of a supercapacitor is very low, and a large number of series connections are required in applications. Since large current charging and discharging are often required in applications, whether the voltages on each individual capacitor in the series connection are consistent is crucial. In the prior art, a cover plate with a lead-out conductive terminal is usually used to achieve the purpose of voltage equalization measures. In the prior art, the pole column is usually laser welded to the aluminum shell. Once the positive and negative poles are installed in the reverse direction when the capacitors are connected in series or parallel, it will cause the direct scrapping of the cover plate, wasting a large amount of materials.

[0004] Therefore, it is necessary to provide a supercapacitor cover plate to solve the above technical problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a supercapacitor cover plate to solve the problem in the above background technique that when the positive and negative poles are installed in the reverse direction during the series or parallel connection of capacitors, it will cause the direct scrapping of the cover plate, wasting a large amount of materials. The technical solution of the utility model provides a solution significantly different from the prior art for the technical problem that the solution of the prior art is too single.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A supercapacitor cover plate includes a cover plate body. A slot is opened at the top of the cover plate body to install a sealing plate. A negative pole column is installed inside the sealing plate. A negative pole adapter piece is installed at the bottom of the outer wall of the negative pole column. A sealing ring is also installed on the outer wall of the negative pole column, and the top of the sealing ring extends into the slot.

[0007] Preferably, a vertically structured liquid injection hole is opened inside the negative pole adapter piece, and through holes are equidistantly opened at the top of the negative pole adapter piece.

[0008] Preferably, both the cover plate body and the negative pole column are made of AL1060 material.

[0009] Preferably, the sealing plate is made of PPS material.

[0010] Preferably, the sealing ring is made of EDPM material.

[0011] Preferably, a threaded post is installed on the top of the negative electrode terminal post.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] By providing a threaded post, the connection between the present utility model and the aluminum housing is achieved through threaded connection, replacing the traditional laser welding. This not only simplifies the installation of the cover plate, but also when the positive and negative electrodes are installed in reverse during the series or parallel connection of capacitors, the positive and negative electrodes of the capacitor can be changed only by disassembling the cover plate through the threaded structure, solving the problem in the traditional technology that the cover plate is directly scrapped due to laser welding, resulting in a large amount of material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional view of the present utility model Figure 1 ;

[0015] Figure 2 is a three-dimensional view of the present utility model Figure 2 ;

[0016] Figure 3 is a three-dimensional exploded view of the present utility model;

[0017] Figure 4 is a front view structural schematic diagram of the present utility model;

[0018] Figure 5 is a three-dimensional view of the connection between the negative electrode terminal post and the sealing ring of the present utility model;

[0019] Figure 6 is a three-dimensional exploded view of the connection between the negative electrode terminal post and the sealing ring of the present utility model;

[0020] Figure 7 is a three-dimensional view of the present utility model provided with a threaded post.

[0021] In the figure: 1, cover plate body; 2, sealing plate; 3, negative electrode terminal post; 4, negative electrode adapter piece; 5, sealing ring; 6, liquid injection hole; 7, through hole; 8, threaded post. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0023] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following will describe the embodiments according to the overall structure of the present utility model.

[0024] Please refer to Figures 1-7 , a supercapacitor cover plate, including a cover plate body 1. A card slot is opened at the top of the cover plate body 1 to install a sealing plate 2. A negative electrode post 3 is installed inside the sealing plate 2. A negative electrode adapter piece 4 is installed at the bottom of the outer wall of the negative electrode post 3. A sealing ring 5 is also installed on the outer wall of the negative electrode post 3, and the top of the sealing ring 5 extends to the inside of the card slot.

[0025] As Figures 1-7 shown, a vertically structured liquid injection hole 6 is opened inside the negative electrode adapter piece 4. Through holes 7 are equidistantly opened at the top of the negative electrode adapter piece 4. The liquid injection hole 6 provided is used for filling electrolyte. When the cover plate is installed on the aluminum shell, the bottom of the liquid injection hole 6 will be sealed by a sealing plug, and the through holes 7 provided facilitate the flow of electrolyte inside the aluminum shell.

[0026] As Figures 1-7 shown, both the cover plate body 1 and the negative electrode post 3 are made of AL1060 material. The cover plate body 1 and the negative electrode post 3 made of AL1060 material have the characteristics of high plasticity, corrosion resistance, good electrical conductivity and thermal conductivity. And the cover plate body 1 is made by stamping process, and the negative electrode post 3 is made by machining process.

[0027] As Figures 1-7 shown, the sealing plate 2 is made of PPS material. The sealing plate 2 made of PPS material has the characteristics of high mechanical strength, high temperature resistance, chemical resistance, flame retardancy, good thermal stability and excellent electrical performance, and is formed by plastic injection molding.

[0028] As Figures 1-7 shown, the sealing ring 5 is made of EDPM material. By setting the sealing ring 5 to be made of EDPM material, which is a high-performance rubber material with excellent electrical insulation performance and corona resistance, the sealing effect is fully ensured.

[0029] As Figures 1-7 shown, a threaded post 8 is installed at the top of the negative electrode post 3. By setting the threaded post 8 to be connected to the aluminum housing through a threaded connection instead of the traditional laser welding, not only is the installation of the cover plate simple, but also when the positive and negative electrodes of the capacitor are installed in reverse during series or parallel connection, only the cover plate needs to be disassembled through the threaded structure to change the positive and negative electrodes of the capacitor, solving the problem in the traditional technology that the cover plate is directly scrapped due to laser welding, wasting a large amount of materials.

[0030] Working principle: During use, the liquid injection hole 6 is provided for filling the electrolyte. When the cover plate is installed on the aluminum housing, the bottom of the liquid injection hole 6 is sealed by a sealing plug, and the through hole 7 is provided to facilitate the flow of the electrolyte inside the aluminum housing. The cover plate body 1 and the negative electrode post 3 are both made of AL1060 material, which has the characteristics of high plasticity, corrosion resistance, good electrical conductivity and thermal conductivity. The cover plate body 1 is made by stamping process, and the negative electrode post 3 is made by machining process. The sealing plate 2 is made of PPS material, which has the characteristics of high mechanical strength, high temperature resistance, chemical resistance, flame retardancy, good thermal stability and excellent electrical performance, and is formed by plastic mold opening. The sealing ring 5 is made of EDPM material, which is a high-performance rubber material with excellent electrical insulation performance and corona resistance, fully ensuring the sealing effect. By setting the threaded post 8 to be connected to the aluminum housing through a threaded connection instead of the traditional laser welding, not only is the installation of the cover plate simple, but also when the positive and negative electrodes of the capacitor are installed in reverse during series or parallel connection, only the cover plate needs to be disassembled through the threaded structure to change the positive and negative electrodes of the capacitor, solving the problem in the traditional technology that the cover plate is directly scrapped due to laser welding, wasting a large amount of materials.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A supercapacitor cover plate, comprising a cover plate body (1), characterized in that: A card slot is formed at the top of the cover plate body (1) for installing a sealing plate (2). A negative electrode post (3) is installed inside the sealing plate (2). A negative electrode adapter piece (4) is installed at the bottom of the outer wall of the negative electrode post (3). A sealing ring (5) is also installed on the outer wall of the negative electrode post (3), and the top of the sealing ring (5) extends into the card slot.

2. The supercapacitor cover plate according to claim 1, wherein: A vertically-structured liquid injection hole (6) is formed inside the negative electrode adapter piece (4), and through holes (7) are equidistantly formed at the top of the negative electrode adapter piece (4).

3. A supercapacitor cover plate according to claim 1, characterized in that: Both the cover plate body (1) and the negative electrode post (3) are made of AL1060 material.

4. A supercapacitor cover plate according to claim 1, characterized in that: The sealing plate (2) is made of PPS material. PPS is molded in a mold to play a role in fixing the overall cover plate and sealing the cover plate.

5. A supercapacitor cover plate according to claim 1, characterized in that: The sealing ring (5) is made of EDPM material.

6. The supercapacitor cover plate according to claim 1, characterized in that: A threaded post (8) is installed at the top of the negative electrode post (3).

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