CN202282313U

CN202282313U - Socket used in fuse pedestal

Info

Publication number: CN202282313U
Application number: CN2011202242562U
Authority: CN
Inventors: 林海鸥; 吴辉; 倪溢雯
Original assignee: SHANGHAI ELECTRIC CERAMIC WORKS CO Ltd
Current assignee: SHANGHAI ELECTRIC CERAMIC WORKS CO Ltd
Priority date: 2011-06-29
Filing date: 2011-06-29
Publication date: 2012-06-20
Anticipated expiration: 2021-06-29

Abstract

The utility model discloses a socket used in a fuse pedestal, comprising an installing bottom plate, a pair of conductive contact arms and a spring ring; wherein, the pair of contact arms are fixed at one end of the installing bottom plate parallelly, vertically and at an effective interval, the spring ring is an opening ring of which the opening spacing is equal to the spacing distance of the pair of contact arms, and the two opening end faces of the spring ring are fixed on the backward surfaces at the upper part of the pair of contact arms respectively. The socket used in the fuse pedestal of the utility model enables the copper plate consumption to be reduced and the reliability of parts to be improved on the basis of keeping the original socket characteristics.

Description

A kind of socket that is used on the fuse base

Technical field

The utility model relates to a kind of socket that is used on the fuse base.

Background technology

Protective device as various electronic electric equipments; Fuse is a kind of traditional devices of technology maturation; Have advantages such as simple in structure, dependable performance, in every profession and trade, be widely used in the protection of various device, develop specially to the concrete equipment of various differences; Like motor, frequency converter etc., the various classifications of protecting.Common fuse generally includes fuse-link and base, and base comprises pedestal, socket and binding post.Socket be contained in base above, two sockets are installed on each base.Socket comprises installs base plate, conduction contact arm and fastening spring circle, and wherein, the conduction contact arm plays the effect of supporting the contact knife sheet on the fuse-link, and spring coil plays the effect that clamps conduction contact arm openings of sizes.Adopt copper material to process because base plate, conduction contact arm and fastening spring circle army are installed, and the conduction contact arm width on the present socket is bigger, generally about 30mm, uses the consumable quantity of copper bigger comparatively speaking.The contact arm that conducts electricity in addition need adopt two spring coils to clamp, and reliability is relatively poor, and the manufacture craft more complicated of spring coil.Therefore, cost efficiency is the primary at present problem that solves.

Summary of the invention

The purpose of the utility model is in order to overcome the deficiency of prior art, a kind of socket that is used on the fuse base to be provided, and it can be in the reliability that keeps reducing the consumptive material of copper on the characteristic basis of original socket and improving parts.

The technical scheme that realizes above-mentioned purpose is: a kind of socket that is used on the fuse base; Comprise base plate, a pair of contact arm and spring coil are installed; Wherein, said a pair of contact arm abreast and to be vertically fixed at interval an end of said installation base plate a coverage; Said spring coil is the broken ring that an aperture pitch equals the spacing distance of said a pair of contact arm, and this spring coil is located at the inboard of said a pair of contact arm, and two openends of this spring coil are separately fixed at the top of said a pair of contact arm.

Above-mentioned be used for the socket on the fuse base, wherein, said a pair of contact arm and said installation base plate are for being made into integration.

Above-mentioned be used for the socket on the fuse base, wherein, the width of said a pair of contact arm is 16～18mm.

Above-mentioned be used for the socket on the fuse base, wherein, said spring coil is processed by the circle copper rod and quantity is one.

The technical scheme that is used for the socket on the fuse base of the utility model, adopting the width of conduction contact arm is 16～18mm, dwindles half thely nearly than the contact arm width 30mm of prior art, can save copper material; In addition, compare prior art and adopt two spring coils, the socket of the utility model only adopts a spring coil just can play the effect same with prior art, and the structure of this spring coil and manufacture craft are all simpler, and the reliability of parts has also been improved.

Description of drawings

Fig. 1 is the structural representation that is used for the socket on the fuse base of the utility model;

Fig. 2 is the end view of Fig. 1;

Fig. 3 is the vertical view of Fig. 1.

Embodiment

In order to understand the technical scheme of the utility model better, below through concrete embodiment and combine accompanying drawing to be elaborated:

See also Fig. 1 to Fig. 3, the utility model be used for the socket on the fuse base, comprise base plate 1, a pair of contact arm 2 and spring coil 3 be installed, wherein:

Base plate 1 is installed is provided with installing hole 10, be used to be installed in the pedestal of socket;

A pair of contact arm 2 abreast and to be vertically fixed at interval an end of installation base plate 1 coverage; The width L of contact arm is 16～18mm; The spacing distance of a pair of contact arm 2 is generally less than the thickness of the contact knife sheet on the fuse-link, so that the contact knife sheet on the fuse-link is produced clamping force;

Spring coil 3 is processed by the circle copper rod and quantity is one; This spring coil 3 is the broken ring that an aperture pitch equals the spacing distance of a pair of contact arm 2; Two open ends of this spring coil 3 be fixed by welding in respectively a pair of contact arm 2 tops on the back side, to hang on a pair of contact arm 2.

A pair of contact arm 2 can be that integral production becomes with base plate 1 is installed.

Because it is 16～18mm that the utility model socket adopts the width of conduction contact arm, dwindle half thely nearly than the contact arm width 30mm of prior art, can save copper material; In addition; Compare prior art and adopt two spring coils, the socket of the utility model only adopts a spring coil to clamp a pair of contact arm, just can play the effect same with prior art; And the structure of this spring coil and manufacture craft are all simpler, and the reliability of parts has also been improved.

Those of ordinary skill in the art will be appreciated that; Above embodiment is used for explaining the utility model; And be not the qualification that is used as the utility model; As long as in the connotation scope of the utility model, all will drop in claims scope of the utility model variation, the modification of the above embodiment.

Claims

1. a socket that is used on the fuse base comprises base plate, a pair of contact arm and spring coil is installed, it is characterized in that,

Said a pair of contact arm abreast and to be vertically fixed at interval an end of said installation base plate a coverage;

Said spring coil is the broken ring that an aperture pitch equals the spacing distance of said a pair of contact arm, two open ends of this spring coil be separately fixed at said a pair of contact arm top on the back side.

2. the socket that is used on the fuse base according to claim 1 is characterized in that, said a pair of contact arm and said installation base plate are for being made into integration.

3. the socket that is used on the fuse base according to claim 1 and 2 is characterized in that, the width of said a pair of contact arm is 16～18mm.

4. the socket that is used on the fuse base according to claim 1 is characterized in that, said spring coil is processed by the circle copper rod and quantity is one.