CN214588641U

CN214588641U - Magnetic latching relay with contact spacing

Info

Publication number: CN214588641U
Application number: CN202121201905.7U
Authority: CN
Inventors: 吕学学; 李勇; 杨勇; 赵凯钒
Original assignee: Yueqing Yijin Electronic Co ltd; Zhejiang Chint Electrics Co Ltd
Current assignee: Yueqing Yijin Electronic Co ltd; Zhejiang Chint Electrics Co Ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-11-02
Anticipated expiration: 2031-05-31

Abstract

The utility model discloses a magnetic latching relay with contact interval solves moving contact and static contact interval under the relay open mode and is too near. The movable contact piece and the static contact plate are respectively provided with a movable contact and a static contact, the movable contact forms a raised riveting part towards the rear end of the movable contact plate, a containing hole for placing the riveting part is formed in the thickness direction of the movable contact plate, and the containing hole and the riveting part are just opposite to each other and the aperture of the containing hole is larger than the outer diameter of the riveting part. The movable stroke of moving contact has been prolonged, makes the moving contact expand with the interval of static contact under the relay on-state, slows down the speed that the temperature rise, prevents that the temperature rise is too high, avoids both intervals too closely to influence the normal of relay and opens and close, and the riveting tool also can pass from the holding hole and carry out the riveting operation to the moving contact, the riveting processing of being convenient for.

Description

Magnetic latching relay with contact spacing

Technical Field

The utility model belongs to the technical field of the relay technique and specifically relates to a magnetic latching relay with contact interval.

Background

The magnetic latching relay uses permanent magnet to provide magnetic force, when the coil is excited, the contact is actuated, and after the coil is deenergized, the contact still maintains the state. The existing magnetic latching relay comprises a movable contact plate, a static contact plate and a movable contact piece, wherein the movable contact piece is acted by the pushing force of a push rod to displace between the movable contact plate and the static contact plate, so that the movable contact piece on the movable contact piece is contacted with or separated from a static contact. The prior Chinese invention patent: a magnetic latching relay changes the installation direction of a movable contact plate in a housing, so that the movable contact plate passes behind a movable contact piece. However, in the magnetic latching relay similar to the above structure, on the premise that the overall size of the relay is not changed, the movable stroke of the movable contact is obviously shortened, the maximum distance between the movable contact and the fixed contact in the opening state of the relay is reduced, the distance between the movable contact and the fixed contact in the opening state is too small, so that the temperature rise is too fast, and even the normal use of the relay is affected.

Disclosure of Invention

The utility model aims at: in order to overcome prior art's defect, the utility model provides a magnetic latching relay with contact interval solves the relay and opens moving contact and static contact interval under the state and too closely.

The technical scheme of the utility model: the movable contact piece and the static contact plate are respectively provided with a movable contact and a static contact, the movable contact forms a raised riveting part towards the rear end of the movable contact plate, a containing hole for placing the riveting part is formed in the thickness direction of the movable contact plate, and the containing hole and the riveting part are just opposite to each other and the aperture of the containing hole is larger than the outer diameter of the riveting part.

By adopting the technical scheme, the movable stroke of the movable contact is prolonged, the distance between the movable contact and the static contact is enlarged in the opening state of the relay, the temperature rising speed is slowed down, the temperature rise is prevented from being too high, the phenomenon that the distance between the movable contact and the static contact is too close to influence the normal opening and closing of the relay is avoided, the riveting tool can penetrate through the accommodating hole to rivet the movable contact, and the riveting processing is facilitated.

The utility model discloses a further setting: the number of the fixed contacts and the moving contacts is two respectively.

By adopting the further arrangement, the contact structure of the double contacts can be used for passing larger current, has strong large current impact resistance, can be suitable for occasions with larger surge current, and can improve the service performance when in use, thereby improving the reliability of the product work and prolonging the electrical service life.

The utility model discloses a further setting again: and riveting a synchronous push sheet into the riveting parts of the two moving contacts, wherein the synchronous push sheet extends to the push rod and is in linkage fit with the push rod.

By adopting the further arrangement, when the push rod acts, the two moving contacts can act synchronously, the pressure on the fixed contact is kept consistent, and the use stability of the relay is improved; the synchronous push sheet and the riveting part are directly fixed through riveting processing, the processing procedures are reduced, and the processing difficulty is reduced.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an exploded view of a part of the structure of the present invention;

wherein, 1, a movable touch plate; 2. a stationary contact plate; 3. a movable contact spring; 4. a push rod; 5. a moving contact; 6. static contact; 51. a riveting part; 11. a housing hole; 7. and (5) synchronously pushing the sheets.

Detailed Description

As shown in fig. 1 and 2, the magnetic latching relay with a contact gap includes a movable contact plate 1, a stationary contact plate 2, a movable contact piece 3 and a push rod 4, wherein the movable contact piece 3 and the stationary contact plate 2 are respectively provided with a movable contact 5 and a stationary contact 6, and one end of the movable contact plate 1 and one end of the movable contact piece 3 are riveted to form a fixing. The moving contact 5 can form a raised riveting part 51 towards the rear end of the moving contact plate 1 direction because of riveting needs, a through containing hole 11 is arranged in the thickness direction of the moving contact plate 1, the containing hole 11 is opposite to the riveting part 51 in the axial direction of the containing hole 11 and the riveting part 51, the aperture of the containing hole 11 is larger than the outer diameter of the riveting part 51, and the containing hole is generally larger than 1 mm. Therefore, when the moving contact 5 moves backwards after being separated from the contact of the static contact 6, the moving contact 5 can be placed into the containing hole 11, and the distance between the moving contact 5 and the static contact 6 is enlarged. In addition, during processing, the riveting tool penetrates through the accommodating hole 11, riveting operation can be performed on the movable contact 5, and the operation process can be followed by the riveting process of the movable contact plate 1 and the movable contact piece 3, so that the operation process can be optimized.

The number of the static contacts 6 and the number of the moving contacts 5 are two, the two static contacts 6 or the two moving contacts 5 are arranged side by side, correspondingly, the number of the accommodating holes 11 is also two, and if the accommodating holes 11 are positioned at the edge of the moving contact plate 1, the accommodating holes 11 are arranged in the shape of incomplete holes. Therefore, the contactable area of the moving contact 5 and the static contact 6 is enlarged, larger current can pass through the contact, and the large current impact resistance is stronger.

A synchronous push sheet 7 is riveted on the riveting parts 51 of the two moving contacts 5, and the synchronous push sheet 7 extends to the push rod 4 to be in linkage fit with the push rod 4. When the push rod 4 is displaced, the synchronous push sheet 7 is pushed to move, the movable contact 3 is stressed to be synchronously bent, and the two movable contacts 5 synchronously move to approach or separate from the fixed contact 6. During processing, the riveting part 51 of the movable contact 5 successively penetrates into the movable contact piece 3 and the synchronous push piece 7, and then riveting and fixing processing are carried out.

Claims

1. The utility model provides a magnetic latching relay with contact interval, is including moving contact plate, stationary contact plate, movable contact spring and push rod, install moving contact, static contact on movable contact spring, the stationary contact plate respectively, its characterized in that: the moving contact forms a raised riveting part towards the rear end of the moving contact plate direction, a containing hole for the riveting part to be placed is formed in the thickness direction of the moving contact plate, the containing hole and the riveting part are arranged just opposite to each other, and the aperture of the containing hole is larger than the outer diameter of the riveting part.

2. The magnetic latching relay with contact spacing of claim 1, wherein: the number of the static contacts and the number of the moving contacts are two respectively.

3. The magnetic latching relay with contact spacing of claim 2, wherein: and riveting a synchronous push sheet into the riveting parts of the two moving contacts, wherein the synchronous push sheet extends to the push rod and is in linkage fit with the push rod.