Super capacitor with good sealing performance

Abstract

The utility model discloses a super capacitor with good sealing performance, and relates to the technical field of capacitors. According to the technical scheme, the capacitor is characterized in that the capacitor comprises a shell and two capacitor bodies arranged in the shell, a sealing plate is fixedly connected between the tops of the two capacitor bodies, the shape of the sealing plate is matched with the shape of an opening of the shell, an abutting part is arranged in the shell in the circumferential side direction of the inner wall of the shell, and the sealing plate is fixedly connected with the abutting part. The two arc surfaces of the abutting part abut against the surfaces of the two capacitor single bodies respectively, the height of the top end of the abutting part is smaller than that of the capacitor single bodies, and a resin layer is arranged on the surface, located on the sealing plate, in the shell. The utility model aims to provide the super capacitor with good sealing performance.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitors, and more specifically, it relates to a supercapacitor with good sealing performance. Background Art

[0002] A supercapacitor is a chemical power source, which has the advantages of short charge and discharge time, long cycle life, high power density, wide operating temperature range, environmental friendliness, etc., making it have high application value and great market potential in the fields of transportation, electric power, communication, national defense, and electronic products.

[0003] The existing supercapacitors generally place the capacitor in a housing with an open top and seal its top with resin. During operation, due to heat generation and overvoltage, expansion and contraction occur, causing the electrolyte in the capacitor to leak. This not only affects the normal operation of the capacitor itself but also affects the normal operation of the equipment where it is located.

[0004] Therefore, a new technical solution is urgently needed to solve the above technical problems. Summary of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a supercapacitor with good sealing performance.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: A supercapacitor with good sealing performance includes a housing and two capacitor monomers arranged in the housing. A sealing plate is fixedly connected between the tops of the two capacitor monomers. The shape of the sealing plate is adapted to the shape of the opening of the housing. An abutting part is arranged along the circumferential direction of the inner wall of the housing. The two arc surfaces of the abutting part respectively abut against the surfaces of the two capacitor monomers. The top height of the abutting part is lower than the height of the capacitor monomers. A resin layer is arranged on the surface of the sealing plate in the housing.

[0007] By adopting the above technical solutions, during production and processing, the two capacitor monomers are first fixed by the sealing plate, so as to facilitate accurately placing the two capacitor monomers into the housing. The abutting part abuts against the surfaces of the two capacitor monomers to ensure the overall stability of the supercapacitor. At the same time, the top of the housing is sealed by the sealing plate. When pouring liquid resin on its top, it prevents the resin from entering below the sealing plate. When the capacitor monomers leak liquid, the electrolyte will flow into the space below the sealing plate in the housing, which can reduce the occurrence of liquid leakage.

[0008] The utility model is further arranged as: The top of the abutting part is arranged in an arc shape inclined downward towards the inside of the housing.

[0009] The present utility model is further configured such that: a limiting edge is provided along the circumferential side of the lower surface of the sealing plate.

[0010] The present utility model is further configured such that: a first groove is provided along the circumferential direction on the side wall of the sealing plate, a sealing ring is sleeved on the sealing plate at the position of the first groove, and a second groove for the sealing ring to be snapped into is provided on the inner wall of the housing.

[0011] The present utility model is further configured such that: a supporting portion is provided on the inner wall of the housing above the abutting portion, the wall thickness of the supporting portion is smaller than that of the abutting portion, and the top of the supporting portion is used to support the sealing plate.

[0012] The present utility model is further configured such that: a limiting groove is provided along the circumferential side at the top of the inner wall of the housing, and a limiting ring placed in the limiting groove is formed on the outer side of the resin layer.

[0013] The present utility model has the following beneficial effects: During production and processing, the two capacitor monomers are first fixed by the sealing plate, so as to facilitate accurately placing the two capacitor monomers into the housing, and the abutting portion abuts against the surfaces of the two capacitor monomers to ensure the overall stability of the supercapacitor. At the same time, the top of the housing is sealed by the sealing plate, preventing the resin from entering below the sealing plate when pouring liquid resin on its top. When the capacitor monomer leaks liquid, the electrolyte will flow into the space below the sealing plate in the housing, which can reduce the occurrence of liquid leakage. Description of the Drawings

[0014] Figure 1 It is a three-dimensional structural schematic diagram of Specific Embodiment 1;

[0015] Figure 2 It is an exploded structural schematic diagram of Specific Embodiment 1;

[0016] Figure 3 It is a semi-sectional structural schematic diagram of the housing of Specific Embodiment 1;

[0017] Figure 4 It is a structural schematic diagram of the sealing plate and the sealing ring of Specific Embodiment 1;

[0018] Figure 5 It is a semi-sectional structural schematic diagram of the housing in Specific Embodiment 2.

[0019] Description of the Drawings: 1. Housing; 2. Capacitor monomer; 3. Sealing plate; 4. Abutting portion; 5. Resin layer; 6. Limiting edge; 7. First groove; 8. Sealing ring; 9. Second groove; 10. Limiting groove; 11. Limiting ring. Detailed Description of the Embodiment

[0020] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0021] Among them, the same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "bottom surface" and "top surface", "inner" and "outer" refer to the directions towards or away from the geometric center of a specific component respectively. Specific Embodiment 1:

[0023] As Figures 1-4 shown, a supercapacitor with good sealing performance includes a housing 1 with an open top and two capacitor monomers 2 arranged in the housing 1. A sealing plate 3 is fixedly connected between the tops of the two capacitor monomers 2. The shape of the sealing plate 3 is adapted to the shape of the opening of the housing 1. An abutting portion 4 is arranged along the circumferential direction of the inner wall of the housing 1. The two arc surfaces of the abutting portion 4 respectively abut against the surfaces of the two capacitor monomers 2. The top height of the abutting portion 4 is lower than the height of the capacitor monomers 2. A resin layer 5 is arranged on the surface of the sealing plate 3 in the housing 1.

[0024] During production and processing, the two capacitor monomers 2 are first fixed by the sealing plate 3, so as to facilitate accurately placing the two capacitor monomers 2 into the housing 1, and the abutting portion 4 abuts against the surfaces of the two capacitor monomers 2 to ensure the overall stability of the supercapacitor. At the same time, the top of the housing 1 is sealed by the sealing plate 3. When pouring liquid resin on its top, it can prevent the resin from entering below the sealing plate 3. When the capacitor monomers 2 leak liquid, the electrolyte will flow into the space below the sealing plate 3 in the housing 1, which can reduce the occurrence of liquid leakage.

[0025] The top of the abutting portion 4 is arranged in an arc shape inclined downward towards the inside of the housing 1. When placing the capacitor monomer 2 in the housing 1, when the bottom end of the capacitor monomer 2 contacts the top of the abutting portion 4, due to its arc-shaped top, the capacitor monomer 2 can be smoothly and conveniently inserted into the abutting portion 4, which is convenient for installation.

[0026] A limiting edge 6 is arranged along the circumference of the lower surface of the sealing plate 3. When the two capacitor monomers 2 are fixedly installed on the lower surface of the sealing plate 3 by glue, the two capacitor monomers 2 can be positioned by the limiting edge 6 to ensure the accuracy of the installation position of the capacitor monomers 2.

[0027] A first groove 7 is formed along the circumferential direction on the side wall of the sealing plate 3. A sealing ring 8 is sleeved on the sealing plate at the first groove 7. A second groove 9 for the sealing ring to be inserted is formed on the inner wall of the housing 1. Through the sealing ring 8, the sealing performance between the sealing plate 3 and the housing 1 can be further improved.

[0028] At the top of the inner wall of the housing 1, a limiting groove 10 is provided along its circumferential side. A limiting ring 11 is formed on the outer side of the resin layer 5 and is placed in the limiting groove 10. When pouring the liquid resin, the resin flows into the limiting groove 10, and the formed limiting ring 11 can effectively improve the connection stability between the resin layer 5 and the housing 1. Specific Embodiment 2:

[0030] Different from Specific Embodiment 1, as Figure 5 shown, a supporting portion 12 is provided on the inner wall of the housing 1 above the abutting portion 4. Its bottom is integrally formed with the abutting portion 4. The wall thickness of the supporting portion 12 is smaller than that of the abutting portion 4. The top of the supporting portion 12 is used to support the sealing plate 3. After the capacitor monomer 2 is placed inside the housing 1, the sealing plate 3 is placed on the top of the supporting portion 12 to limit the sealing plate 3. When leakage occurs, the liquid leaked from the capacitor monomer 2 can enter the space between the supporting portion 12 and the capacitor monomer 2 inside the housing 1.

[0031] The specific embodiments are only explanations of the present invention, and they are not limitations of the present invention. Those skilled in the art can make modifications without creative contributions to the embodiments according to needs after reading this specification, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A supercapacitor with good sealing performance, comprising a housing (1) and two capacitor monomers (2) arranged inside the housing (1), characterized in that: A sealing plate (3) is fixedly connected between the tops of the two capacitor monomers (2). The shape of the sealing plate (3) is adapted to the shape of the opening of the housing (1). An abutting portion (4) is arranged along the circumferential direction of the inner wall of the housing (1). The top height of the abutting portion (4) is lower than the height of the capacitor monomer (2). A resin layer (5) is arranged on the surface of the sealing plate (3) inside the housing (1).

2. The supercapacitor with good sealing performance according to claim 1, wherein: The top of the abutting portion (4) is arranged in an arc shape inclined downward towards the inside of the housing (1).

3. A supercapacitor with good sealing performance according to claim 1, characterized in that: A limiting edge (6) is arranged along the circumference of the lower surface of the sealing plate (3).

4. A supercapacitor with good sealing performance according to claim 1, characterized in that: A first groove (7) is formed in the side wall of the sealing plate (3) along the circumferential direction. A sealing ring (8) is sleeved on the sealing plate (3) at the position of the first groove (7). A second groove (9) for the sealing ring (8) to be snapped into is formed in the inner wall of the housing (1).

5. A supercapacitor with good sealing performance according to claim 1, characterized in that: A supporting portion (12) is arranged on the inner wall of the housing (1) above the abutting portion (4). The wall thickness of the supporting portion (12) is smaller than the wall thickness of the abutting portion (4). The top of the supporting portion (12) is used to support the sealing plate (3).

6. The supercapacitor with good sealing performance according to claim 1, characterized in that: A limiting groove (10) is formed in the top of the inner wall of the housing (1) along the circumferential direction. A limiting ring (11) placed in the limiting groove (10) is formed on the outside of the resin layer (5).

Images