Capacitor insulation cover

Abstract

The utility model relates to the technical field of capacitor manufacturing, in particular to a capacitor insulating cover, which comprises a cover body, a pole piece convex cover is arranged on the cover body, and a terminal groove is arranged at the side part of the pole piece convex cover; the cover body covers the top of the capacitor, and the terminal groove is matched with a connecting terminal of the capacitor in shape; the cover body is provided with a curled edge, and the curled edge is in close contact with the processed end face of the capacitor aluminum shell; according to the utility model, the insulating cover is arranged at the top of the capacitor, so that the requirements of a user are met, the insulating effect is achieved, and the storage and transportation safety of the capacitor is improved; and the full-covering insulator not only ensures the short circuit phenomenon caused by wearing, cracking or falling of the ferrule, but also avoids the short circuit phenomenon of the terminal base caused by exposure of a connecting line or a raised line on the circuit board, thereby thoroughly ensuring the reliability of the used equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitor manufacturing, and specifically relates to a capacitor insulating cover. Background Art

[0002] Capacitors generally play roles such as filtering, bypassing, coupling, tuning, energy storage and conversion in electronic circuits, and it is one of the widely used electronic components in electronic devices. For example: it is very common in the fields of communication equipment, computer and peripheral accessories, automotive industry, sports and fitness equipment, security industry, smart home electronic products, etc.

[0003] When substrate self-standing and through-hole capacitors are applied on the electronic circuit boards of automotive electronic devices, sports equipment, and various mobile and transmission devices, they are often affected by the jitter or vibration generated during the operation of the devices, resulting in friction between the through-hole capacitors on the circuit board and the circuit board surface, causing wear, rupture or detachment of the surface sleeves of the capacitors, and thus leading to short circuits or failures of the double-sided circuit board. Because the capacitor housing is made of conductive aluminum, it further affects the normal operation of the entire circuit board. Therefore, it is urgent to solve the problems of short circuits or failures of the circuit board caused by the rupture or detachment of the capacitor sleeves in order to improve the reliability of the device. Content of the Utility Model

[0004] The purpose of the utility model is to provide a capacitor insulating cover to solve the above technical problems.

[0005] To achieve the above purpose, the utility model provides the following technical solutions;

[0006] A capacitor insulating cover includes a cover body. The cover body is provided with pole piece convex covers, and terminal slots are provided on the side parts of the pole piece convex covers; the cover body is covered on the top of the capacitor, and the terminal slots are in conformity with the shapes of the connection terminals of the capacitor; and the cover body is provided with a curled edge, and the curled edge is in close contact with the end face of the capacitor aluminum shell after processing.

[0007] Further, the pole piece convex covers include a positive pole convex cover and a negative pole convex cover; the top of the capacitor is provided with a positive terminal and a negative terminal; the positions where the positive pole convex cover and the negative pole convex cover are provided correspond to the positions of the positive terminal and the negative terminal; and terminal slots are provided on the side parts of both the positive pole convex cover and the negative pole convex cover;

[0008] Further, the terminal slots include a positive pole slot and a negative pole slot; a positive pole piece is provided on the positive terminal, and a negative pole piece is provided on the negative terminal; the sizes of the positive pole slot and the negative pole slot are in conformity with the positive pole piece and the negative pole piece;

[0009] Further, the cover body is made of polyester insulating material;

[0010] Furthermore, the maximum diameter of the cover body is consistent with the diameter of the capacitor.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] By adopting the utility model, installing an insulating cover on the top of the capacitor not only meets the needs of users and achieves insulation, but also improves the storage and transportation safety of the capacitor; and the fully covered insulator not only ensures the short circuit phenomenon caused by wear, cracking or falling off of the ring, but also avoids the short circuit phenomenon caused by the exposure of the connection line or the protruding line on the circuit board at the terminal base, thereby completely ensuring the reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an oblique schematic diagram of the overall structure of the utility model; DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0015] refer to Figure 1 -shown, a capacitor insulating cover comprises a cover body 1, the cover body is provided with a pole piece convex cover, and the side of the pole piece convex cover is provided with a terminal groove; the cover body 1 is covered on the top of the capacitor 6, and the terminal groove is consistent with the shape of the connecting terminal of the capacitor 6; and the cover body 1 is provided with a curling edge 11, and the curling edge 11 is in close contact with the end face of the capacitor 6 after the aluminum shell is processed.

[0016] Furthermore, the electrode convex cover includes a positive electrode convex cover 5 and a negative electrode convex cover 3; a positive terminal 63 and a negative terminal 61 are provided on the top of the capacitor 6; the opening positions of the positive electrode convex cover 5 and the negative electrode convex cover 3 correspond to the positions of the positive terminal 63 and the negative terminal 61; the sides of the positive electrode convex cover 5 and the negative electrode convex cover 3 are both provided with terminal grooves;

[0017] Further, the terminal slot includes a positive slot 4 and a negative slot 2; a positive terminal sheet 64 is provided on the positive terminal 63, and a negative terminal sheet 62 is provided on the negative terminal 61; the opening sizes of the positive slot 4 and the negative slot 2 are consistent with the positive terminal sheet 64 and the negative terminal sheet 62;

[0018] Furthermore, the cover body 1 is made of polyester insulating material;

[0019] In this embodiment, the cover body 1 is made of PET polyester insulation material or PC polycarbonate insulation material. The operating temperature range of the former is about -70°C to 150°C, and the operating temperature range of the latter is -30°C to 130°C.

[0020] Using PET material as the capacitor insulation cover is conducive to conducting the heat inside the capacitor and improving the heat dissipation effect of the capacitor. Most capacitor covers are made of materials such as phenolic resin. However, the thermal conductivity of phenolic resin is about 0.023W / (m·k), while the thermal conductivity of PET is 0.24W / m·K, which is ten times that of phenolic resin. In addition, the thermal conductivity of metal aluminum is about 237W / (m·K), and the edge of the PET insulation cover is closely connected to the end face of the metal aluminum shell of the capacitor, which is conducive to heat conduction.

[0021] Thermal conductivity refers to the ability of a material to conduct heat when it receives heat flow (for example, from a heater). This index can reflect the heat transfer performance of PET materials.

[0022] In the present invention, the capacitor 6 will be subjected to an aging test process after the sealing assembly is completed, and the good capacitors after the aging test will be subjected to the casing operation; before the capacitor 6 is casing,

[0023] The insulating cover of the capacitor is assembled. The cover body 1 is placed on the top of the capacitor 6. The positive convex cover 5 and the negative convex cover 3 are placed on the positive terminal 63 and the negative terminal 61, and the positive terminal sheet 64 and the negative terminal sheet 62 are exposed through the positive electrode slot 4 and the negative electrode slot 2, so as to facilitate the subsequent processing and use of the capacitor. Finally, the capacitor with the insulating cover is transported to the casing machine for casing the capacitor;

[0024] By adopting the utility model, installing an insulating cover on the top of the capacitor not only meets the needs of users and achieves insulation, but also improves the storage and transportation safety of the capacitor; and the fully covered insulator not only ensures the short circuit phenomenon caused by wear, cracking or falling off of the ring, but also avoids the short circuit phenomenon caused by the exposure of the connection line or the protruding line on the circuit board at the terminal base, thereby completely ensuring the reliability of the equipment.

[0025] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the scope defined by the spirit of the present invention.

Claims

1. A capacitor insulating cover, characterized in that: The invention comprises a cover body (1), the cover body is provided with a pole piece convex cover, and the side of the pole piece convex cover is provided with a terminal groove; the cover body (1) is covered on the top of the capacitor (6), and the terminal groove is consistent with the shape of the connection terminal of the capacitor (6); and the cover body (1) is provided with a curling edge (11), and the curling edge (11) is in close contact with the end face of the aluminum shell of the capacitor (6) after processing.

2. A capacitor insulating cover according to claim 1, characterized in that: The pole piece convex cover comprises a positive pole convex cover (5) and a negative pole convex cover (3); a positive terminal (63) and a negative terminal (61) are provided on the top of the capacitor (6); the opening positions of the positive pole convex cover (5) and the negative pole convex cover (3) correspond to the positions of the positive terminal (63) and the negative terminal (61); and the sides of the positive pole convex cover (5) and the negative pole convex cover (3) are both provided with terminal grooves.

3. A capacitor insulating cover according to claim 2, characterized in that: The terminal slots include a positive electrode slot (4) and a negative electrode slot (2); a positive terminal sheet (64) is provided on the positive terminal (63), and a negative terminal sheet (62) is provided on the negative terminal (61); the opening sizes of the positive electrode slot (4) and the negative electrode slot (2) are consistent with the positive terminal sheet (64) and the negative terminal sheet (62).

4. The capacitor insulating cover according to claim 1, characterized in that: The cover body (1) is made of polyester insulating material.

5. The capacitor insulating cover according to claim 1, characterized in that: The maximum diameter of the cover body (1) is consistent with the diameter of the capacitor.

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