CN102810432A

CN102810432A - Contact set of relay

Info

Publication number: CN102810432A
Application number: CN2012103225224A
Authority: CN
Inventors: 杨晓厦; 郑杰; 王水君
Original assignee: Ningbo Forward Relay Corp Ltd
Current assignee: Ningbo Forward Relay Corp Ltd
Priority date: 2012-08-21
Filing date: 2012-09-04
Publication date: 2012-12-05

Abstract

The invention discloses a contact set of a relay, The contact set of the relay comprises a movable contact and a static contact and is characterized in that a first rib is integrally arranged on the movable contact, a second rib is integrally arranged on the static contact, and the first rib and the second rib cross each other when the contacts are closed. The contact set of the relay has the advantage that bridge connection of a conventional bifurcate double-contact structure during working is avoided, contact area of the contact set is decreased, pressure between the contacts is enlarged, contact resistance of the contacts is lowered, low level load capability of the contacts is improved, contacting reliability of the contact set is greatly improved, and working reliability of the relay is guaranteed.

Description

A kind of contact sets of relay

Technical field

The present invention relates to a kind of relay, relate in particular to a kind of contact sets of relay.

Background technology

At present; The low-level load relay adopts the form of bifurcated reed double-contact usually; But the relay of this kind form is easy to generate bridge joint phenomenon (refer to the moving contact of relay and often open the phenomenon that fixed contact and normally closed fixed contact are connected simultaneously) when working in the contact; Cause relay to lose efficacy, and this double-contact also need transit time in the course of the work.

Summary of the invention

Technical problem to be solved by this invention provides a kind of low-level load ability that improves, with the contact sets of the relay that guarantees its contact reliability.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of contact sets of relay; Comprise moving contact and fixed contact; Be wholely set first convex tendon on the described moving contact; Be wholely set second convex tendon on the described fixed contact, described first convex tendon and described second convex tendon intersect when the closing of contact.

Described first convex tendon is through the surperficial center of circle of described moving contact, and described second convex tendon is through the surperficial center of circle of described fixed contact.

Described first convex tendon and described second convex tendon are right-angled intersection when the closing of contact, this has further reduced the contact area of contact group.

Described fixed contact is for often opening fixed contact, and described first convex tendon is wholely set at described moving contact on described surface of often opening fixed contact, and described second convex tendon is wholely set described often to be opened on the fixed contact.

Described fixed contact is normally closed fixed contact, and described first convex tendon is wholely set at described moving contact on the surface of described normally closed fixed contact, and described second convex tendon is wholely set on described normally closed fixed contact.

Described fixed contact is divided into often opens fixed contact and normally closed fixed contact; Described often opening on fixed contact or the described normally closed fixed contact has been wholely set second convex tendon, and described moving contact has been wholely set first convex tendon on the described surface of often opening fixed contact or normally closed fixed contact of correspondence.

Described fixed contact is divided into often opens fixed contact and normally closed fixed contact, has been wholely set first convex tendon respectively on two surfaces of described moving contact, and described often opening on fixed contact and the described normally closed fixed contact has been wholely set second convex tendon respectively.

The shape of cross section of described first convex tendon and described second convex tendon is low wide and up narrow.

The shape of cross section of described first convex tendon and described second convex tendon is triangle.

The height of described first convex tendon greater than 0 less than 0.15mm, bottom width greater than 0 less than 0.20mm, the height of described second convex tendon greater than 0 less than 0.15mm, bottom width greater than 0 less than 0.20mm.

The preferable range of the height of described first convex tendon be greater than 0 smaller or equal to the preferable range of 0.04mm, bottom width for greater than 0 smaller or equal to 0.08mm, the preferable range of the height of described second convex tendon be to be smaller or equal to 0.08mm greater than 0 greater than 0 preferable range smaller or equal to 0.04mm, bottom width

Compared with prior art, advantage of the present invention is that fixed contact is provided with second convex tendon because moving contact is provided with first convex tendon; And first convex tendon and second convex tendon intersect; The bridge joint phenomenon that this structure has avoided traditional bifurcated reed double-contact structure when work, to produce, and reduced the contact area of contact sets when contact, the pressure between the contact increases; The contact contact resistance reduces; The low-level load ability of contact is able to promote, thereby has improved the reliability of contact sets contact greatly, has also guaranteed the functional reliability of relay.

Description of drawings

Fig. 1 is one of structural representation that is installed in the moving contact on the movable contact spring of the present invention;

Fig. 2 is two of the structural representation that is installed in the moving contact on the movable contact spring of the present invention;

Fig. 3 is the structural representation of the embodiment of the invention one;

Fig. 4 is the structural representation of the embodiment of the invention three.

Embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

Embodiment one: as shown in the figure; A kind of contact sets of relay comprises moving contact 1 and normally closed fixed contact 3, and moving contact 1 is wholely set first convex tendon 4 through its surperficial center of circle on the surface of normally closed fixed contact 3; The shape of cross section of first convex tendon 4 is low wide and up narrow; The height of first convex tendon 4 is that 0.025mm, bottom width are 0.05mm, and the shape of cross section that is wholely set second convex tendon, 5, the second convex tendons 5 in its surperficial center of circle of process on the normally closed fixed contact 3 is low wide and up narrow; The height of second convex tendon 5 is that 0.04mm, bottom width are 0.08mm, and first convex tendon 4 and second convex tendon 5 are right-angled intersection when the closing of contact.

Embodiment two: a kind of contact sets of relay; Its structural representation is identical with embodiment one, comprises moving contact 1 and Chang Kai fixed contact 2, and moving contact 1 is wholely set first convex tendon 4 through its surperficial center of circle on the surface of often opening fixed contact 2; The shape of cross section of first convex tendon 4 is a triangle; The height of first convex tendon 4 is that 0.04mm, bottom width are 0.08mm, and the shape of cross section of often opening second convex tendon, 5, the second convex tendons 5 that are wholely set its surperficial center of circle of process on the fixed contact 2 is a triangle; The height of second convex tendon 5 is that 0.03mm, bottom width are 0.06mm, and first convex tendon 4 and second convex tendon 5 are right-angled intersection when the closing of contact.

Embodiment three: as shown in the figure; A kind of contact sets of relay comprises moving contact 1, often opens fixed contact 2 and normally closed fixed contact 3, is wholely set first convex tendon 4 through its surperficial center of circle on two surfaces of moving contact 1 respectively; The shape of cross section of first convex tendon 4 is low wide and up narrow; The height of first convex tendon 4 is that 0.03mm, bottom width are 0.06mm, and the shape of cross section of often opening second convex tendon, 5, the second convex tendons 5 that are wholely set its surperficial center of circle of process on fixed contact 2 and the normally closed fixed contact 3 respectively is low wide and up narrow; The height of second convex tendon 5 is that 0.03mm, bottom width are 0.06mm, and first convex tendon 4 and second convex tendon 5 are right-angled intersection when the closing of contact.

Embodiment four: other structure is with embodiment three, and difference is can be only to be wholely set second convex tendon 5 on fixed contact 2 or the normally closed fixed contact 3 often opening, and moving contact 1 is often opened towards correspondence on the surface of fixed contact 2 or normally closed fixed contact 3 and is wholely set first convex tendon 4.

In the foregoing description; First convex tendon 4 and second convex tendon 5 also can intersect when the closing of contact and get final product, and the height of first convex tendon 4 and second convex tendon 5 can be selected in the scope of 0～0.15mm respectively according to actual needs, bottom width can be selected in the scope of 0～0.20mm according to actual needs.

Claims

1. the contact sets of a relay; Comprise moving contact and fixed contact; It is characterized in that being wholely set first convex tendon on the described moving contact, be wholely set second convex tendon on the described fixed contact, described first convex tendon and described second convex tendon intersect when the closing of contact.

2. the contact sets of a kind of relay as claimed in claim 1 is characterized in that the surperficial center of circle of described first convex tendon through described moving contact, and described second convex tendon is through the surperficial center of circle of described fixed contact.

3. the contact sets of a kind of relay as claimed in claim 1 is characterized in that described first convex tendon and described second convex tendon are right-angled intersection when the closing of contact.

4. the contact sets of a kind of relay as claimed in claim 1; It is characterized in that described fixed contact is for often opening fixed contact; Described first convex tendon is wholely set at described moving contact on described surface of often opening fixed contact, and described second convex tendon is wholely set described often to be opened on the fixed contact.

5. the contact sets of a kind of relay as claimed in claim 1; It is characterized in that described fixed contact is normally closed fixed contact; Described first convex tendon is wholely set at described moving contact on the surface of described normally closed fixed contact, and described second convex tendon is wholely set on described normally closed fixed contact.

6. the contact sets of a kind of relay as claimed in claim 1; It is characterized in that described fixed contact is divided into often opens fixed contact and normally closed fixed contact; Described often opening on fixed contact or the described normally closed fixed contact has been wholely set second convex tendon, and described moving contact has been wholely set first convex tendon on the described surface of often opening fixed contact or normally closed fixed contact of correspondence.

7. the contact sets of a kind of relay as claimed in claim 1; It is characterized in that described fixed contact is divided into often opens fixed contact and normally closed fixed contact; Be wholely set first convex tendon respectively on two surfaces of described moving contact, described often opening on fixed contact and the described normally closed fixed contact has been wholely set second convex tendon respectively.

8. the contact sets of a kind of relay as claimed in claim 1 is characterized in that the shape of cross section of described first convex tendon and described second convex tendon is low wide and up narrow.

9. the contact sets of a kind of relay as claimed in claim 8 is characterized in that the shape of cross section of described first convex tendon and described second convex tendon is triangle.

10. the contact sets of a kind of relay as claimed in claim 8; The height that it is characterized in that described first convex tendon greater than 0 less than 0.15mm, bottom width greater than 0 less than 0.20mm, the height of described second convex tendon greater than 0 less than 0.15mm, bottom width greater than 0 less than 0.20mm.

11. the contact sets of a kind of relay as claimed in claim 10; It is characterized in that described first convex tendon height preferable range for greater than 0 smaller or equal to the preferable range of 0.04mm, bottom width for greater than 0 smaller or equal to 0.08mm, the preferable range of the height of described second convex tendon be to be smaller or equal to 0.08mm greater than 0 greater than 0 preferable range smaller or equal to 0.04mm, bottom width.