CN220933920U - Capacitor cap and capacitor - Google Patents

Abstract

The utility model discloses a capacitor cap and a capacitor, comprising a capacitor cap body, wherein an installation cavity is arranged in the cap body and is used for sleeving the capacitor; the inner wall of the mounting cavity is provided with a limit groove, and the limit groove extends along the circumferential direction of the inner wall of the mounting cavity; the bottom of the cap body is provided with an opening, and the opening and the limiting groove are communicated with each other. A capacitor, comprising a capacitor body, a lead assembly and the capacitor cap, wherein one end of the capacitor body is formed into a wiring terminal, and the wiring terminal is electrically connected with the lead assembly; the capacitor cap covers the wiring terminal to cover the lead wire assembly; the periphery of the wiring terminal is provided with a protruding part, the protruding part is arranged corresponding to the limiting groove, and the limiting groove is used for clamping the protruding part; and the convex part extends out of the opening after the capacitor cap is covered on the wiring terminal. The utility model protects the wiring terminal of the capacitor and is convenient to assemble.

Description

Capacitor cap and capacitor

Technical Field

The utility model relates to the technical field of capacitors, in particular to a capacitor cap and a capacitor.

Background

At present, in the household electrical appliance market, the smaller the diameter of a small-capacity capacitor is required, the better the diameter is, and meanwhile, the higher the quality and reliability requirements of the capacitor are, so that most manufacturers in China select a top cover explosion-proof design with more reliable explosion-proof performance, the minimum diameter in a main stream product is 30mm, the single inserting sheet is led out, a single inserting sheet is selected, a customer needs to have a lead, one end of the lead is riveted with a female terminal, the single inserting sheet of the capacitor is inserted on the female terminal, and the capacitor is loose and not tight after being pulled out and plugged in a plurality of times, so that the conductivity is reduced. The design cannot ensure the creepage distance, has no waterproof sputtering, and has the risks of short circuit and electric shock between the leading-out ends; in addition, when the capacitor is assembled with the host computer, bolts are arranged at the bottom of the capacitor, the bolts penetrate through mounting holes of the machine plate during assembly, gasket nuts are put, the nuts are screwed down again to fix the capacitor, the assembly is complicated, if the strength is too large during screwing down the nuts, the bolts are easy to damage, and even the bottom of the capacitor shell is broken.

Disclosure of utility model

In order to overcome the defects in the prior art, one of the purposes of the utility model is to provide a capacitor cap which can protect the terminals of a capacitor.

The second purpose of the utility model is to provide a capacitor, which is connected with the machine plate through the opening on the capacitor cap, so that the grounding of the capacitor shell is realized, and meanwhile, the assembly is simple and convenient, and the capacitor is not damaged.

The utility model adopts the technical proposal for solving the problems that:

The capacitor cap comprises a cap body, wherein an installation cavity is arranged in the cap body and is used for sleeving a capacitor; the inner wall of the mounting cavity is provided with a limit groove, and the limit groove extends along the circumferential direction of the inner wall of the mounting cavity; the bottom of the cap body is provided with an opening, and the opening and the limit groove are communicated with each other.

Further, the bottom of the limiting groove is provided with a joint surface, and the joint surface is obliquely arranged along the bottom of the limiting groove towards the bottom of the cap body.

Further, a mounting plate is further arranged on one side of the cap body, and the mounting plate is located above the opening and is arranged at intervals with the cap body.

Further, the inner side of the mounting plate is provided with a positioning rib and a buckle, and the positioning rib and the buckle are arranged oppositely.

Further, a wire protecting sleeve is arranged on the cap body, and one end of the wire protecting sleeve is formed into a wire inlet end communicated with the mounting cavity; the other end of the wire protecting sleeve is formed into a wire outlet end.

Further, the capacitor comprises a capacitor body, a lead assembly and the capacitor cap, wherein one end of the capacitor body is formed into a wiring terminal, and the wiring terminal is electrically connected with the lead assembly; the capacitor cap covers the wiring terminal to cover the lead assembly;

The periphery of the wiring terminal is provided with a protruding part, the protruding part is arranged corresponding to the limiting groove, and the limiting groove is used for clamping the protruding part; and the convex part extends out of the opening after the capacitor cap is covered on the wiring terminal.

Further, an insulating member is further arranged on the capacitor body, and the insulating member is arranged at the top of the wiring terminal and used for guiding the lead assembly to penetrate into the insulating member through the wiring terminal.

Further, an installation concave position is arranged in the insulating piece, a gasket is arranged in the installation concave position, and the gasket is arranged on the bottom wall of the installation concave position and is electrically connected with the capacitor body, so that the lead assembly penetrates through the installation concave position and is electrically connected with the capacitor body.

Further, at least two mounting concave positions are arranged, and the gaskets are arranged in the at least two mounting concave positions; the installation concave position is semi-barrel.

Further, the gasket is fixed to the bottom wall of the mounting recess by rivets.

In summary, the capacitor cap and the capacitor provided by the utility model have the following technical effects: the limiting groove on the cap body is clamped with the capacitor wiring terminal protruding part, the cap body is used for covering the wiring terminal of the capacitor, so that the circuit on the junction is protected, and the assembly is convenient and is not easy to loosen; in addition, the cap body is also provided with an opening, the capacitor can be connected with an external machine board through the opening, the grounding of the shell of the capacitor is realized, and the capacitor is easy to assemble and cannot be damaged.

Drawings

FIG. 1 is a schematic view of the overall assembly structure of the present utility model;

FIG. 2 is a schematic diagram of a capacitor body according to the present utility model;

FIG. 3 is a schematic view of a capacitor cap according to the present utility model;

FIG. 4 is a schematic cross-sectional view of a capacitive cap of the present utility model;

wherein the reference numerals have the following meanings:

10. A capacitor body; 11. a terminal; 111. a boss; 12. a lead assembly; 13. an insulating member; 131. installing a concave position; 14. a gasket; 20. a cap body; 21. a limit groove; 211. a joint surface; 22. an opening; 23. a mounting plate; 231. positioning ribs; 232. a buckle; 24. and a wire protecting sleeve.

Detailed Description

For a better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.

In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

In the case of example 1,

Referring to fig. 1 to 4, the utility model discloses a capacitor cap, which comprises a cap body 20, wherein an installation cavity is arranged in the cap body 20, the installation cavity can be used for sleeving a capacitor, a limit groove 21 is arranged on the inner wall of the installation cavity, the limit groove 21 extends along the circumferential direction of the inner wall of the installation cavity, the capacitor can be clamped in the limit groove 21 during assembly, an opening 22 is further arranged at the bottom of the cap body 20, and the opening 22 and the limit groove 21 are mutually communicated.

On the basis of the structure, when the capacitor cap and the capacitor are assembled, the cap body 20 is sleeved on the wiring terminal 11 of the capacitor, so that the capacitor wiring terminal 11 is arranged in the installation cavity of the cap body 20, the cap body 20 can protect a circuit on the wiring terminal of the capacitor, and the limit groove 21 extends along the inner circumference of the installation cavity due to the limit groove 21 arranged in the installation cavity, so that when the cap body 20 is sleeved on the wiring terminal of the capacitor, the edge of the wiring terminal can be directly clamped in the limit groove 21 to be connected with the cap body 20, and the capacitor cap is easy and convenient to assemble and is not easy to loosen.

Further, since the bottom of the cap 20 is further provided with the opening 22, by penetrating the opening 22 and the limit groove 21, when the terminal of the capacitor is assembled with the cap 20, a part of the terminal can be extended out through the opening 22, so that the capacitor can be electrically connected with the outside.

It should be noted that the smaller the diameter of the existing small-capacity capacitor is, the better the smaller the diameter is, the smallest diameter in the main stream product is 30mm, the leading-out mode of the terminal is single-insert-sheet leading-out, the single-insert-sheet is selected, the customer needs to have a lead, one end of the lead is riveted with a female terminal, the single-insert-sheet of the capacitor is inserted on the female terminal, the design has no waterproof sputtering, and the risks of short circuit and electric shock between leading-out ends are caused; in addition, when the capacitor is assembled with the host computer, bolts are arranged at the bottom of the capacitor, the bolts penetrate through mounting holes of the machine plate during assembly, gasket nuts are put, the nuts are screwed down again to fix the capacitor, the assembly is complicated, if the strength is too large during screwing down the nuts, the bolts are easy to damage, and even the bottom of the capacitor shell is broken.

Therefore, when the capacitor cap and the capacitor in this embodiment are assembled, the cap body 20 of the capacitor cap is sleeved on the wiring terminal of the capacitor to protect the wiring terminal from being polluted by water or other external environments, so as to prevent the short circuit of the wiring terminal.

It should be noted that, since the capacitor in the existing market is a cylinder, after the capacitor terminal is snapped with the shell, the snap-in position will bulge, i.e. the snap-in position diameter is larger than the main body diameter, so there is a protruding portion in the capacitor cap corresponding to the snap-in position. On the basis of the structure, the capacitor cap can be buckled on the capacitor, the protruding part can be clamped in the limiting groove 21 to well limit, and the assembly structure is stable.

Preferably, the cap 20 in this embodiment may be made of a material with good elasticity, such as natural rubber, synthetic rubber or plastic, which has high durability and a certain toughness.

Further, the bottom of the limiting groove 21 is provided with an engagement surface 211, and the engagement surface 211 is obliquely arranged along the bottom of the limiting groove 21 towards the bottom of the cap 20.

Specifically, through setting up the linking face 211 in the bottom of spacing recess 21, when condenser and cap body 20 assembly, because linking face 211 establish to one side with the bottom of spacing recess 21, that condenser alright slide into in the spacing recess 21 through the inclined plane of linking face 211, the assembly is more convenient.

Further, one side of the cap 20 is also provided with a mounting plate 23, and the mounting plate 23 is located above the opening 22 and spaced from the cap 20.

Specifically, when the capacitor needs to be assembled with an external board, as the mounting plate 23 is arranged on one side of the cap body 20 and the mounting plate 23 is arranged at intervals with the cap body 20, an interval is reserved between the mounting plate 23 and the cap body 20, and the board can be directly inserted into the interval to complete the assembly with the capacitor.

More specifically, since the mounting plate 23 is located above the opening 22, after the board and the mounting plate 23 are assembled, the board can be electrically connected with the inside of the capacitor through the opening 22 below the mounting plate 23, and the assembly is convenient and easy.

Further, a positioning rib 231 and a buckle 232 are arranged on the inner side of the mounting plate 23, and the positioning rib 231 is opposite to the buckle 232.

Specifically, the inner side of the mounting plate 23 is further provided with a positioning rib 231 and a buckle 232, when the machine plate is inserted into the interval between the mounting plate 23 and the cap 20, one end of the machine plate can be abutted against the positioning rib through the positioning rib 231, so that the machine plate is fixed at a designated position, and after the machine plate is placed at the position, the other end of the machine plate is buckled through the buckle 232, so that the machine plate can be fixed on the cap.

It should be noted that, the board may be provided with a clamping portion or a clamping block corresponding to the positioning rib 231 and the buckle 232, and the assembly structure is more stable by fastening the buckle 232 and the clamping block.

Further, a wire protecting sleeve 24 is provided on the cap 20, one end of the wire protecting sleeve 24 is formed as a wire inlet end communicating with the installation cavity, and the other end of the wire protecting sleeve 24 is formed as a wire outlet end.

Specifically, after the cap 20 is assembled with the capacitor, the capacitor is electrically connected with the outside through a lead wire, so in this embodiment, the cap 20 may be further provided with a wire protecting sleeve 24, one end of the wire protecting sleeve 24 is formed into a wire inlet end communicated with the installation cavity, and the other end of the wire protecting sleeve 24 is formed into a wire outlet end, that is, after the cap 20 is assembled with the capacitor body 10, the lead wire of the capacitor may be led into the wire protecting sleeve 24 through the wire inlet end and led out from the wire outlet end, so as to facilitate wire routing and protect the lead wire.

In the case of example 2,

Referring to fig. 1 to 4, the present utility model also discloses a capacitor, which comprises a capacitor body 10, a lead assembly 12 and the capacitor cap above, wherein one end of the capacitor body 10 is formed as a terminal 11, and the terminal 11 is electrically connected with the lead assembly 12; the capacitor cap covers the wiring terminal 11 to cover the lead assembly 12; the periphery of the wiring terminal 11 is provided with a protruding part 111, the protruding part 111 is arranged corresponding to a limiting groove 21, and the limiting groove 21 is used for clamping the protruding part 111; and the capacitor cap covers the rear protrusion 111 of the terminal 11 and protrudes through the opening 22.

On the basis of the structure, when the capacitor is assembled, the end electrode of the capacitor can be led out from the lead assembly 12 to the wiring terminal 11, the lead assembly 12 is electrically connected with the wiring terminal 11 on the capacitor body 10 to enable the whole capacitor to be electrified, and then the capacitor cap is covered on the capacitor body 10, so that the capacitor cap can cover the wiring terminal 11 to protect the wiring of the lead assembly 12 and the like on the wiring terminal 11, and the wiring on the wiring terminal 11 is prevented from being corroded or polluted by the external environment to cause a short circuit phenomenon due to long-term exposure.

Specifically, since the periphery of the terminal 11 of the capacitor body 10 is further provided with the protruding portion 111, and the protruding portion 111 is disposed corresponding to the limit groove 21 on the inner wall of the capacitor cap, when the capacitor cap is covered on the terminal 11, the protruding portion 111 can slide into the limit groove 21 to be blocked due to the elastic force of the cap 20 via the engagement surface at the bottom of the limit groove 21 due to the certain elasticity of the cap 20, so that the capacitor cap and the capacitor cap are not easy to separate from each other.

More specifically, when the capacitor needs to be assembled with an external board, the board can be assembled with the capacitor body 10 through the mounting plate 23 on the capacitor cap, and the capacitor cap is further provided with the opening 22, the opening 22 is located below the mounting plate 23, so that when the capacitor cap is covered on the terminal 11, the protruding portion 111 can extend out from the opening 22 to be electrically connected with the board, and the whole assembly mode is simple and convenient.

It should be noted that, when the existing capacitor is assembled with the host computer, the bottom of the capacitor is provided with a bolt, the bolt passes through the mounting hole of the machine plate when in installation, the gasket nut is put, the nut is screwed down again to fix, the assembly is more complicated, if the strength is too large when screwing the nut, the bolt is easy to damage, and even the bottom of the capacitor shell is broken, so that the risk that the shell is broken when the capacitor is assembled with external equipment can be effectively reduced when the assembly mode in the embodiment is used.

Further, the capacitor body 10 is further provided with an insulating member 13, and the insulating member 13 is disposed on top of the terminal 11 for guiding the lead assembly 12 to penetrate into the insulating member 13 through the terminal 11.

Specifically, by providing the insulator 13 on the capacitor body 10, the insulator 13 is provided on top of the terminal 11, so that the lead assembly 12 can be inserted into the insulator 13 through the terminal 11 to further insulate the lead assembly 12.

Preferably, the insulating member 13 may be made of plastic, rubber, or other nonconductive material.

Further, an installation recess 131 is formed in the insulating member 13, a gasket 14 is formed in the installation recess 131, and the gasket 14 is disposed on a bottom wall of the installation recess 131 and electrically connected to the capacitor body 10, so that the lead assembly 12 is connected to the installation recess 131 in a penetrating manner and electrically connected to the capacitor body 10.

Specifically, after the end electrode of the capacitor is led out from the lead assembly 12, the end electrode of the capacitor can be mounted on the bottom wall of the mounting recess 131 of the insulating member 13 through the spacer 14, i.e. the lead assembly 12 needs to extend into the mounting recess 131, so that the lead assembly has a sufficient creepage distance.

It should be noted that, since the mounting recess 131 has a certain depth, when necessary, the insulating member 13 and the capacitor can be more firmly connected by pouring cured epoxy with a certain thickness into the mounting recess 131, so that the sealing performance of the whole capacitor is better.

Further, at least two mounting concave positions 131 are provided, and gaskets 14 are arranged in the at least two mounting concave positions 131.

Specifically, the mounting concave portions 131 are provided with at least two, and gaskets 14 are respectively disposed in the at least two mounting concave portions 131, so that the two lead assemblies 12 can be respectively introduced into the two mounting concave portions 131, and are mutually independent to prevent interference.

It should be noted that, the mounting recess 131 in this embodiment may be added according to the number of lead assemblies 12 required to be designed on the capacitor.

Further, the mounting recess 131 has a semi-barrel shape.

Specifically, the mounting recess 131 in this embodiment is in a half-barrel shape, the mounting recess 131 formed in the half-barrel shape is deeper, and the creepage distance formed by the lead assembly 12 after mounting is long.

Further, the gasket 14 is fixed to the bottom wall of the mounting recess 131 by rivets.

Specifically, the pad 14 in this embodiment is fixed to the bottom wall of the mounting recess 131 by rivets, so as to facilitate assembly, and the lead assembly 12 may be fixed to the pad 14 by conventional welding.

The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (10)

1. The capacitor cap is characterized by comprising a cap body, wherein an installation cavity is arranged in the cap body and is used for sleeving a capacitor; the inner wall of the mounting cavity is provided with a limit groove, and the limit groove extends along the circumferential direction of the inner wall of the mounting cavity; the bottom of the cap body is provided with an opening, and the opening and the limit groove are communicated with each other.

2. The capacitive cap of claim 1, wherein the bottom of the limiting groove is provided with an engagement surface that is disposed obliquely along the bottom of the limiting groove toward the bottom of the cap body.

3. The capacitive cap of claim 1, wherein one side of the cap body is further provided with a mounting plate, the mounting plate being positioned above the opening and spaced from the cap body.

4. A capacitive cap according to claim 3, wherein the mounting plate is provided with a locating rib and a catch on the inside thereof, the locating rib being disposed opposite the catch.

5. The capacitor cap of claim 1, wherein a wire guard is provided on the cap body, and one end of the wire guard is formed as a wire inlet end communicated with the mounting cavity; the other end of the wire protecting sleeve is formed into a wire outlet end.

6. A capacitor comprising a capacitor body, a lead assembly, and a cap according to any one of claims 1-5, one end of the capacitor body being formed as a terminal electrically connected to the lead assembly; the capacitor cap covers the wiring terminal to cover the lead assembly;

The periphery of the wiring terminal is provided with a protruding part, the protruding part is arranged corresponding to the limiting groove, and the limiting groove is used for clamping the protruding part; and the convex part extends out of the opening after the capacitor cap is covered on the wiring terminal.

7. The capacitor of claim 6 wherein said capacitor body further includes an insulator disposed on top of said terminals for guiding said lead assembly through terminals into said insulator.

8. The capacitor of claim 7 wherein said insulator has a mounting recess therein, said mounting recess having a spacer therein, said spacer being disposed on a bottom wall of said mounting recess and electrically connected to said capacitor body such that said lead assembly is threaded into said mounting recess and electrically connected to said capacitor body.

9. The capacitor of claim 8 wherein said mounting recess is provided in at least two of said mounting recesses, said spacer being disposed in each of said at least two mounting recesses; the installation concave position is semi-barrel.

10. The capacitor of claim 9 wherein said spacer is secured to the bottom wall of said mounting recess by rivets.