Ox horn capacitor with low-temperature injection molding shell

Abstract

The utility model discloses an ox horn capacitor with a low-temperature injection molding shell, relates to the technical field of capacitors, and aims to solve the technical problem of poor sealing performance. According to the technical scheme, the ox-horn capacitor is characterized by comprising an ox-horn capacitor body, the ox-horn capacitor body comprises an aluminum shell, a battery cell arranged in the aluminum shell, an end cover and a leading-out terminal extending out of the end cover, an injection molding shell wrapping the surfaces of the aluminum shell and the end cover is formed on the surface of the ox-horn capacitor body through low-temperature injection molding, and the leading-out terminal extends out of the injection molding shell. The utility model aims to provide the ox horn capacitor with the low-temperature injection molding shell.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitors, and more specifically, to a horn capacitor with a low-temperature injection-molded shell. Background Art

[0002] Among capacitors, the positive and negative lead terminals of the horn capacitor are roughly in the shape of horns, so it is called a horn capacitor. The horn capacitor generally includes positive and negative lead terminals, end caps, anode foil, cathode foil and electrolytic paper; among them, the anode foil, cathode foil and electrolytic paper are wound together to form a capacitor core package, which is encapsulated in an aluminum sealed shell, and then connected to the lead terminals through the lead electrodes for plug-in installation and use.

[0003] The horn capacitor in the prior art is sealed by an end cap. After long-term use, its sealing performance is reduced, so that leakage may occur, which affects its service life.

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

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a horn capacitor with a low-temperature injection-molded housing.

[0006] The above technical purpose of the utility model is achieved through the following technical scheme: a cow-horn capacitor with a low-temperature injection molded shell, including a cow-horn capacitor body, the cow-horn capacitor body including an aluminum shell, a battery cell arranged in the aluminum shell, an end cover and a lead terminal extending out of the end cover, the surface of the cow-horn capacitor body is formed by low-temperature injection molding with an injection molded shell covering the surface of the aluminum shell and the end cover, and the lead terminal extends out of the injection molded shell.

[0007] By adopting the above technical solution, an injection-molded shell is formed on the surface of the horn capacitor body by low-temperature injection molding, thereby effectively improving the sealing of the horn capacitor, thereby effectively preventing leakage and increasing its service life.

[0008] The utility model is further configured as follows: a connecting piece is arranged on the top of the ox-horn capacitor body, and the connecting piece includes a connecting ring arranged on the top of the ox-horn capacitor body and covering the connection between the aluminum shell and the end cover.

[0009] The utility model is further configured as follows: a plurality of connecting rods sleeved on the outer side wall of the aluminum shell are arranged at the bottom of the connecting ring along its circumferential direction.

[0010] The utility model is further configured as follows: the surface of the connecting rod facing the aluminum shell is arranged in an arc shape, and the outer side wall of the aluminum shell is recessed inward to form a connecting groove for inserting the connecting rod.

[0011] The utility model is further configured as follows: a sealing ring is arranged at the bottom of the connecting ring, and the sealing ring is placed at the connection between the aluminum shell and the end cover.

[0012] The utility model is further configured as follows: the injection molded shell completely covers the surfaces of the aluminum shell and the end cover, and the lead terminal passes through the injection molded shell.

[0013] The utility model is further configured as follows: the injection molded shell half covers the top of the aluminum shell side wall and the surface of the end cover, and the lead terminal passes through the injection molded shell.

[0014] The utility model has the following beneficial effects: by forming an injection-molded shell on the surface of the horn capacitor body through low-temperature injection molding, the sealing of the horn capacitor is effectively improved, thereby effectively preventing leakage and increasing its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the first embodiment;

[0016] Figure 2 It is a schematic diagram of the structure of the horn capacitor body;

[0017] Figure 3 This is a schematic diagram of the exploded structure of the horn capacitor body and the connector of this embodiment;

[0018] Figure 4 It is a structural diagram of embodiment 2.

[0019] Description of the drawings: 1. Horn capacitor body; 101. Aluminum shell; 102. End cover; 103. Lead terminal; 2. Injection molded shell; 3. Connector; 301. Connecting ring; 302. Connecting rod; 4. Connecting groove; 5. Sealing ring. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. Specific embodiment one:

[0023] As shown in the figure, a cow-horn capacitor with a low-temperature injection molded shell includes a cow-horn capacitor body 1, which includes an aluminum shell 101, a battery cell (not shown in the figure) arranged in the aluminum shell 101, an end cover 102 and a lead terminal 103 extending out of the end cover 102. The surface of the cow-horn capacitor body 1 is formed by low-temperature injection molding with an injection molded shell 2 that fully covers the surface of the aluminum shell 101 and the end cover 102, and the lead terminal 103 extends out of the injection molded shell 2.

[0024] By forming the injection molded shell 2 on the surface of the horn capacitor body 1 by low-temperature injection molding, the sealing performance of the horn capacitor is effectively improved, thereby effectively preventing leakage and increasing its service life.

[0025] A connector 3 is provided on the top of the ox-horn capacitor body 1. The connector 3 includes a connecting ring 301, which is placed on the top of the ox-horn capacitor body 1 and covers the connection between the aluminum shell 101 and the end cover 102. The bottom of the connecting ring 301 is provided with a plurality of connecting rods 302 sleeved on the outer wall of the aluminum shell 101 along its circumferential direction. Before the injection molding work, the connector 3 is placed on the top of the ox-horn capacitor body 1, so that the connecting ring 301 covers the gap between the aluminum shell 101 and the end cover 102. After low-temperature injection molding, the sealing performance of the connection between the end cover 102 and the aluminum shell 101 is further improved.

[0026] The surface of the connecting rod 302 facing the aluminum shell 101 is arranged in an arc shape, and the outer wall of the aluminum shell 101 is recessed inward to form a connecting groove 4 for inserting the connecting rod 302. The connecting rod 302 is inserted into the corresponding connecting groove 4 to ensure the stability of the connection between the connecting piece 3 and the aluminum shell 101.

[0027] A sealing ring 5 is provided at the bottom of the connecting ring 301 . The sealing ring is placed at the connection between the aluminum shell 101 and the end cover 102 . The sealing ring 5 is pressed against the connection between the aluminum shell 101 and the end cover 102 to further improve the sealing performance. Specific embodiment 2:

[0029] As shown in the figure, different from the specific embodiment 1, the injection molded shell 2 in this embodiment is half-covered on the top of the side wall of the aluminum shell 101 and the surface of the end cover 102, and the lead terminal 103 passes through the injection molded shell 2, while ensuring the sealing performance between the end cover 102 and the aluminum shell 101, while reducing the raw material cost during low-temperature injection molding.

[0030] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, 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 horn capacitor with a low-temperature injection-molded shell, comprising a horn capacitor body (1), wherein the horn capacitor body (1) comprises an aluminum shell (101), a battery cell arranged in the aluminum shell (101), an end cover (102) and a lead terminal (103) extending out of the end cover (102), characterized in that: The surface of the horn capacitor body (1) is formed by low-temperature injection molding to have an injection molded shell (2) covering the surface of the aluminum shell (101) and the end cover (102), and the lead terminal (103) extends out of the injection molded shell (2).

2. A horn capacitor with a low temperature injection molded housing (2) according to claim 1, characterized in that: A connecting piece (3) is provided on the top of the ox-horn capacitor body (1), and the connecting piece (3) includes a connecting ring (301) arranged on the top of the ox-horn capacitor body (1) and covering the connection between the aluminum shell (101) and the end cover (102).

3. The horn capacitor with a low temperature injection molded housing (2) according to claim 2, characterized in that: The bottom of the connecting ring (301) is provided with a plurality of connecting rods (302) sleeved on the outer wall of the aluminum shell (101) along its circumferential direction.

4. The horn capacitor with a low temperature injection molded housing (2) according to claim 3, characterized in that: The surface of the connecting rod (302) facing the aluminum shell (101) is arranged in an arc shape, and the outer wall of the aluminum shell (101) is recessed inward to form a connecting groove (4) for the connecting rod (302) to be inserted.

5. The horn capacitor with a low temperature injection molded housing (2) according to claim 4, characterized in that: A sealing ring (5) is provided at the bottom of the connecting ring (301), and the sealing ring (5) is placed at the connection between the aluminum shell (101) and the end cover (102).

6. The horn capacitor with a low temperature injection molded housing (2) according to claim 1, characterized in that: The injection molded shell (2) completely covers the surfaces of the aluminum shell (101) and the end cover (102), and the lead terminal (103) passes through the injection molded shell (2).

7. The horn capacitor with a low temperature injection molded housing (2) according to claim 1, characterized in that: The injection molded shell (2) half covers the top of the side wall of the aluminum shell (101) and the surface of the end cover (102), and the lead terminal (103) passes through the injection molded shell (2).

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