CN202178200U

CN202178200U - Vacuum switch

Info

Publication number: CN202178200U
Application number: CN2011202794479U
Authority: CN
Inventors: 王天理
Original assignee: XIAMEN JULI ELECTRIC EQUIPMENT CO Ltd
Current assignee: XIAMEN JULI ELECTRIC EQUIPMENT CO Ltd
Priority date: 2011-08-03
Filing date: 2011-08-03
Publication date: 2012-03-28
Anticipated expiration: 2021-08-03

Abstract

The utility model relates to an electrical element, in particular to a structure of a vacuum switch, which comprises a threaded tube main body, a first conducting rod, a spring, a first contact, a second contact, an inner seal ring, an outer seal ring, an insulation porcelain plate, a second conducting rod, a first buffer block and a second buffer block, wherein the threaded tube main body is a tubular cavity body with a thread on the outer side, the first conducting rod is arranged at the upper end of the threaded tube main body, and the spring is arranged between the first conducting rod and the first contact. The first contact and the second contact are arranged in the tubular cavity body of the threaded tube main body, the inner seal ring is sleeved on the inner peripheral side of the threaded tube main body, and the outer seal ring is sleeved on the outer peripheral side of the threaded tube main body. The insulation porcelain plate is fixedly arranged at the lower ends of the inner seal ring and the outer seal ring, the second conducting rod is arranged at the lower end of the threaded tube main body, and the first buffer block and the second buffer block are arranged between the second contact and the second conducting rod. By means of the technical scheme, the vacuum switch is an improvement on the structure of an existing vacuum switch to guarantee functions of the vacuum switch to be safely put into good use, and in addition, service life of the vacuum switch is long.

Description

A kind of vacuum switch

Technical field

The utility model relates to electric component, relates in particular to the structure of vacuum switch.

Background technology

Vacuum switch is the switch of the vacuum degree of control piper or certain enclosure space, and for pure mechanical deformation causes the sensitive switch action, main effect is the electric elements that cut off big electric current.

The conducting of existing vacuum switch structure is to utilize negative pressure to force the contact to contact with the contact; But it is then not enough sometimes or cause function incomplete because of seal leakage easily to carry out conducting whether power by negative pressure merely; In addition, contact and conducting rod to contact momentum excessive and be prone to cause the generation of contact distortion.

The utility model content

Therefore, the utility model proposes a kind of improved vacuum switch to 2 weak points of existing vacuum switch, can guarantee that the safety of vacuum switch function is put to good use, and useful life is more permanent.

The technical scheme of the utility model is:

A kind of vacuum switch comprises:

One screwed pipe main body is the tubular cavity body that the outside is made as screw thread;

First conducting rod is arranged at the upper end of screwed pipe main body;

Spring is arranged between first conducting rod and first contact;

First contact and second contact are arranged in the screwed pipe main body tubular cavity;

Internal sealed ring is socketed in interior all sides of screwed pipe main body;

The covering ring is socketed in the outer circumferential side of screwed pipe main body;

The insulation porcelain plate is fixedly set in the lower end of internal sealed ring and covering ring;

Second conducting rod is arranged at the lower end of screwed pipe main body;

First buffer stopper and second buffer stopper are arranged between second contact and second conducting rod.

The utility model adopts as above technical scheme, and the structure of existing vacuum switch is improved, and put to good use with the safety that guarantees the vacuum switch function, and useful life is more permanent.When the effect of vacuum reduces or the contact and the release of contact take place still to guarantee when a little is revealed, guarantee the response of working fast of vacuum switch, guarantee simultaneously contact useful life to be beneficial to the life-span prolongation of vacuum switch.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Embodiment

Combine accompanying drawing and embodiment that the utility model is further specified at present.

Consult shown in Figure 1ly, the vacuum switch of present embodiment comprises:

One screwed pipe main body 5 is tubular cavity bodies that the outside is made as screw thread;

First conducting rod 1 is arranged at the upper end of screwed pipe main body 5;

Spring 2 is arranged between first conducting rod 1 and first contact 31;

First contact 31 and second contact 32 are arranged in screwed pipe main body 5 tubular cavities;

Internal sealed ring 7 is socketed in interior all sides of screwed pipe main body 5;

Covering ring 8 is socketed in the outer circumferential side of screwed pipe main body 5;

Insulation porcelain plate 9 is fixedly set in the lower end of internal sealed ring 7 and covering ring 8;

Second conducting rod 10 is arranged at the lower end of screwed pipe main body 5;

First buffer stopper 61 and second buffer stopper 62 are arranged between second contact 32 and second conducting rod 10.

The spring 2 of the vacuum switch of the utility model is arranged between first conducting rod 1 and first contact 31, is used to ensure when the vacuum degree deficiency of vacuum switch is perhaps slightly revealed the enforcement of assurance function.First buffer stopper 61 and second buffer stopper 62 are arranged between second contact 32 and second conducting rod 10, are used to protect the contact force of contact and conducting rod to be not enough to the contact is caused damage and influences useful life.

Although specifically show and introduced the utility model in conjunction with preferred embodiment; But the those skilled in the art should be understood that; In the spirit and scope of the utility model that does not break away from appended claims and limited; Can make various variations to the utility model in form with on the details, be the protection range of the utility model.

Claims

1. a vacuum switch is characterized in that, comprising:

One screwed pipe main body (5) is the tubular cavity body that the outside is made as screw thread;

First conducting rod (1) is arranged at the upper end of screwed pipe main body (5);

Spring (2) is arranged between first conducting rod (1) and first contact (31);

First contact (31) and second contact (32) are arranged in screwed pipe main body (5) tubular cavity;

Internal sealed ring (7) is socketed in interior all sides of screwed pipe main body (5);

Covering ring (8) is socketed in the outer circumferential side of screwed pipe main body (5);

Insulation porcelain plate (9) is fixedly set in the lower end of internal sealed ring (7) and covering ring (8);

Second conducting rod (10) is arranged at the lower end of screwed pipe main body (5);

First buffer stopper (61) and second buffer stopper (62) are arranged between second contact (32) and second conducting rod (10).