CN214378054U

CN214378054U - Sealing rubber plug for capacitor

Info

Publication number: CN214378054U
Application number: CN202120696839.9U
Authority: CN
Inventors: 沈静
Original assignee: Zhejiang Tianhua Electronic Co ltd
Current assignee: Zhejiang Tianhua Electronic Co ltd
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2021-10-08
Anticipated expiration: 2031-04-06

Abstract

The utility model provides a sealing rubber plug for condenser belongs to capacitor fitting technical field. It has solved the problem that the ventilative effect is poor is prevented to the plug main part. This rubber plug for condenser, including the plug main part, set up the pin hole that supplies the lead wire to pass in the plug main part, and the quantity of pin hole is two, set up radial outside sunken ring channel on the internal perisporium that the plug main part is located corresponding pin hole department, the plug main part is located ring channel department and is provided with rather than the cooperation of looks joint and be used for strengthening the sealed unit of pin hole department leakproofness, the plug main part is located corresponding ring channel and all is provided with the spacing unit that is used for restricting sealed unit position. The utility model discloses have that the leakproofness is good and prevent the point that ventilation effect is good.

Description

Sealing rubber plug for capacitor

Technical Field

The utility model belongs to the technical field of the condenser accessory, a condenser is with sealing rubber stopper is related to.

Background

The capacitor is the most widely used, most used and irreplaceable electronic component, and the yield thereof accounts for about 40% of the total electronic component, and the aluminum electrolytic capacitor is the most dominant capacitor category. In the long-term working operation of the aluminum electrolytic capacitor, the electrolyte can diffuse and volatilize outwards through the sealing material, the capacitance is gradually reduced, and finally the failure is caused; the volatilization of the electrolyte is not only related to the temperature of the inner core of the capacitor, but also directly influences the outward diffusion speed of the electrolyte by the sealing rubber plug of the capacitor, and in the production process of the aluminum electrolytic capacitor, the material of the rubber plug is required to be used for sealing the aluminum electrolytic capacitor, so that the electrolyte is prevented from volatilizing through the rubber plug at high temperature.

Disclosure of Invention

The utility model aims at providing a to the above-mentioned problem that exists among the prior art.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a rubber sealing plug for condenser, includes the plug main part, the plug main part on set up the pin hole that supplies the lead wire to pass, and the quantity of pin hole be two, its characterized in that, set up radial outside sunken ring channel on the internal perisporium that the plug main part is located corresponding pin hole department, the plug main part is located ring channel department and is provided with rather than the cooperation of looks joint and is used for strengthening the sealed unit of pin hole department leakproofness, the plug main part is located corresponding ring channel and all is provided with the spacing unit who is used for restricting sealed unit position.

In the above sealing rubber plug for a capacitor, the annular groove is formed in the upper end portion of the rubber plug main body.

In foretell a condenser is with sealing rubber stopper, sealed unit be sealed post, sealed post be located and be provided with radial outside protruding and prevent that sealed post from breaking away from the protruding ring portion of pin hole one on the periphery wall of tip department down, sealed post stretch out the outer periphery wall of plug main part and be provided with radial outside protruding and restrict sealed post and stretch into the protruding ring portion two of pin hole position.

In the above rubber sealing plug for capacitor, the outer peripheral wall of the sealing column at the upper end is provided with an outer chamfer.

In foretell a sealing rubber plug for condenser, the external diameter of bulge loop portion one be less than the internal diameter of ring channel, the external diameter of bulge loop portion two be greater than the internal diameter of ring channel, bulge loop portion two with the terminal surface that the plug laminated mutually is provided with the axial and is protruding downwards and imbeds protruding ring in the plug main part.

In foretell a condenser is with sealing rubber buffer, the up end of sealed post on offer and supply the lead wire to pass and rather than the line hole of coaxial setting, the lower terminal surface of sealed post on offer the outside sunken and with the recess of coaxial setting of axial, the line hole be located with be provided with interior chamfer on the perisporium of groove connection department.

In foretell a sealing rubber plug for condenser, spacing unit constitute by spacing ring piece and supporting spring, spacing ring piece set up in supporting spring's top, this spacing ring piece pass through supporting spring with a inconsistent laminating of bulge loop portion.

Compared with the prior art, this sealing rubber stopper for condenser has following advantage:

1. sealed post is connected with the cooperation of plug main part joint, and sealed post can be changed to the assembly of the different diameter lead wires of being convenient for, and the line hole has been seted up on the sealed post, and the inflation appears in the sealed post after the temperature rise in the condenser, thereby has further strengthened sealed effect, has improved the gas permeability of preventing of plug main part.

Drawings

Fig. 1 is a schematic sectional view of the rubber stopper of the sealing rubber for capacitor.

In the figure, 1, a rubber plug main body; 2. a wire hole; 3. an annular groove; 4. a sealing unit; 5. a limiting unit; 6. the first convex ring part; 7. a convex ring part II; 8. a raised ring; 9. a wire hole; 10. a groove; 11. a limit ring sheet; 12. supporting the spring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, this rubber sealing plug for condenser, including plug main part 1, plug main part 1 on set up the pin hole 2 that supplies the lead wire to pass, and the quantity of pin hole 2 is two, plug main part 1 is located and sets up radial outside sunken ring channel 3 on the internal perisporium of corresponding pin hole 2 department, plug main part 1 is located ring channel 3 department and is provided with rather than the cooperation of looks joint and is used for strengthening the leakproofness of pin hole 2 department and is used for protecting the seal unit 4 of lead wire, plug main part 1 all is provided with spacing unit 5 that is used for restricting the 4 positions of seal unit in corresponding ring channel 3, seal unit 4 is sealed post, sealed post can be made by elastic material, be provided with radial outside protruding and prevent that sealed post breaks away from the bulge loop portion one 6 of pin hole 2 on the periphery wall of tip department under sealed post is located, sealed post stretches out that 1 outer periphery wall is provided with radial outside protruding and restricts the bulge loop portion two 7 that sealed post stretches into pin hole 2 positions And the first convex ring part 6 and the second convex ring part 7 are matched to realize clamping connection with the rubber plug main body 1.

In a detailed description, in order to facilitate the joint assembly of the sealing unit 4, the annular groove 3 is arranged at the upper end part of the rubber plug main body 1, the outer diameter of the first convex ring part 6 is smaller than the inner diameter of the annular groove 3, the outer diameter of the second convex ring part 7 is larger than the inner diameter of the annular groove 3, the second convex ring part 7 and the end face, which is attached to the rubber plug, of the rubber plug are provided with an axially downward convex protrusion and embedded into the convex ring 8 in the rubber plug main body 1, and the inner diameter of the convex ring 8 is larger than the inner diameter of the annular groove 3.

As a preferred structure, the outer peripheral wall of the seal post at the upper end portion is provided with an outer chamfer.

In order to facilitate the lead to pass through and ensure the tightness after assembly, a wire hole 9 for the lead to pass through and be coaxially arranged with the lead is formed in the upper end surface of the sealing post, a groove 10 which is axially and outwardly sunken and coaxially arranged is formed in the lower end surface of the sealing post, an inner chamfer is formed in the peripheral wall at the joint of the wire hole 9 and the groove 10, and a cotton net block fixedly connected with the sealing post is arranged in the groove 10 of the sealing post.

In order to further say that the stability of the structure after assembly is enhanced, the limiting unit 5 is composed of a limiting ring piece 11 and a supporting spring 12, the limiting ring piece 11 is arranged above the supporting spring 12, and the limiting ring piece 11 is abutted and attached to the first convex ring part 6 through the supporting spring 12.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a rubber sealing plug for condenser, includes plug main part (1), plug main part (1) on offer down-lead hole (2) that supply the lead wire to pass, and the quantity of down-lead hole (2) is two, its characterized in that, radial outside sunken ring channel (3) are seted up on the internal perisporium that plug main part (1) is located corresponding down-lead hole (2) department, plug main part (1) is located ring channel (3) department and is provided with rather than the cooperation of looks joint and is used for strengthening sealed unit (4) of down-lead hole (2) department leakproofness, plug main part (1) is located corresponding ring channel (3) and all is provided with spacing unit (5) that are used for restricting sealed unit (4) position.

2. The rubber plug for capacitor of claim 1, wherein the annular groove (3) is disposed at the upper end of the rubber plug body (1).

3. The sealing rubber plug for the capacitor according to claim 1, wherein the sealing unit (4) is a sealing column, the sealing column is located on the peripheral wall of the lower end portion and is provided with a first protruding ring portion (6) which protrudes radially outward and prevents the sealing column from breaking away from the lead hole (2), and the peripheral wall of the sealing column extending out of the rubber plug main body (1) is provided with a second protruding ring portion (7) which protrudes radially outward and limits the sealing column from extending into the lead hole (2).

4. A rubber plug for sealing capacitor as claimed in claim 3, wherein the peripheral wall of the sealing post at the upper end is provided with an outer chamfer.

5. The sealing rubber plug for the capacitor as claimed in claim 3, wherein the outer diameter of the first protruding ring part (6) is smaller than the inner diameter of the annular groove (3), the outer diameter of the second protruding ring part (7) is larger than the inner diameter of the annular groove (3), and the end face of the second protruding ring part (7) attached to the rubber plug is provided with a protruding ring (8) protruding downwards in the axial direction and embedded into the rubber plug main body (1).

6. The sealing rubber plug for the capacitor according to claim 3, wherein the upper end surface of the sealing post is provided with a wire hole (9) through which a lead wire passes and which is coaxially arranged with the sealing post, the lower end surface of the sealing post is provided with a groove (10) which is axially outwardly recessed and which is coaxially arranged with the sealing post, and an inner chamfer is arranged on the circumferential wall of the joint of the wire hole (9) and the groove (10).

7. The rubber sealing plug for the capacitor as claimed in claim 5, wherein the limiting unit (5) comprises a limiting ring sheet (11) and a supporting spring (12), the limiting ring sheet (11) is arranged above the supporting spring (12), and the limiting ring sheet (11) is attached to the first collar part (6) in an abutting mode through the supporting spring (12).