CN201374285Y

CN201374285Y - Vacuum relay

Info

Publication number: CN201374285Y
Application number: CN200920035685U
Authority: CN
Inventors: 尹剑平; 黄浩; 张立云; 覃奀壵; 贾冰冰
Original assignee: KUNSHAN GUOLI VACUUM ELECTRIC CO Ltd
Current assignee: Kunshan national electronic Polytron Technologies Inc
Priority date: 2009-03-16
Filing date: 2009-03-16
Publication date: 2009-12-30
Anticipated expiration: 2019-03-16

Abstract

The utility model discloses a vacuum relay. The vacuum relay comprises a vacuum chamber, a plurality of contact poles hermetically penetrating the side wall of the vacuum chamber, and a plurality of longitudinal ribs formed on the outer side of the side wall of the vacuum chamber between the contact poles with the reference of the assembly direction. The periphery of the side wall of the vacuum chamber between the contact poles has a corrugated cross section, so that the insulation distance between the contact poles outside the vacuum chamber changes from an original flat arc distance or linear distance to a curved distance, thereby greatly increasing the insulation distance between two contact poles. Accordingly, the voltage resistance of the relay is improved by a larger margin.

Description

Vacuum relay

Technical field

The utility model relates to a kind of relay, especially a kind of vacuum relay.

Background technology

At present, existing on the market vacuum relay mainly is made up of vacuum chamber, running part and coil, the gap of the resistance to pressure of relay contact in depending on vacuum chamber, also depend on the insulation distance between the external contact bar of vacuum chamber, the sidewall cross section of the vacuum chamber of existing relay mostly is shape such as circular, square, under the situation that vacuum chamber cross section maximum outside diameter is set, the insulation distance between its contact point bar promptly has been defined.

Summary of the invention

The utility model for the technical scheme that solves its technical problem and adopt is:

Vacuum relay, comprise vacuum chamber, the plurality of touch points rod seal is located on the sidewall of vacuum chamber, is benchmark with the assembly direction, the vacuum chamber sidewall outside between each contact point bar forms some fins longitudinally, and the peripheral cross-section of the vacuum chamber sidewall between the described contact point bar becomes corrugated.

Be equipped with three contact point bars on the sidewall of described vacuum chamber.

The fin in the vacuum chamber sidewall outside between described each contact point bar is three.

The beneficial effects of the utility model are: because the outside of the vacuum chamber sidewall between the contact point bar forms some fins longitudinally, the peripheral cross-section of the vacuum chamber sidewall between the contact point bar becomes corrugated, so just make the insulation distance between the external contact bar of vacuum chamber become curve distance by original smooth camber line distance or air line distance, increased the insulation distance between the two contact point bars greatly, therefore made the resistance to pressure of relay obtain raising by a relatively large margin accordingly.

Description of drawings

Fig. 1 is a generalized section of the present utility model;

Fig. 2 is the generalized section of original technology that the utility model contrasted.

Embodiment

Embodiment: vacuum relay, comprise vacuum chamber, 1 sealing of plurality of touch points bar is located on the sidewall of vacuum chamber 2, with the assembly direction is benchmark, the vacuum chamber 2 sidewalls outside between each contact point bar 1 forms some fins longitudinally 3, and the peripheral cross-section of vacuum chamber 2 sidewalls between the described contact point bar 1 becomes corrugated.

Be equipped with three contact point bars 1 on the sidewall of described vacuum chamber 2.

The fin 3 in the vacuum chamber 2 sidewalls outside between described each contact point bar 1 is three.

Because the outside of vacuum chamber 2 sidewalls between the contact point bar 1 forms some fins longitudinally 3, the peripheral cross-section of vacuum chamber 2 sidewalls between the contact point bar 1 becomes corrugated, so just make the insulation distance between the vacuum chamber 2 external contact bar 1 become curve distance by original smooth camber line distance or air line distance, increased the insulation distance between the two contact point bars 1 greatly, therefore made the resistance to pressure of relay obtain raising by a relatively large margin accordingly.

Claims

1, a kind of vacuum relay, comprise vacuum chamber, plurality of touch points bar (1) sealing is located on the sidewall of vacuum chamber (2), it is characterized in that: be benchmark with the assembly direction, the vacuum chamber sidewall outside between each contact point bar forms some fins longitudinally (3), and the peripheral cross-section of the vacuum chamber sidewall between the described contact point bar becomes corrugated.

2, vacuum relay according to claim 1 is characterized in that: be equipped with three contact point bars on the sidewall of described vacuum chamber.

3, vacuum relay according to claim 1 and 2 is characterized in that: the fin in the vacuum chamber sidewall outside between described each contact point bar is three.