CN214797179U

CN214797179U - Pushing structure of strong current-carrying relay

Info

Publication number: CN214797179U
Application number: CN202121301933.6U
Authority: CN
Inventors: 汪卫华
Original assignee: Zhejiang Fanhua Electronic Co ltd
Current assignee: Zhejiang Fanhua Electronic Co ltd
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2021-11-19
Anticipated expiration: 2031-06-10

Abstract

The utility model belongs to the technical field of circuit control, a promotion structure of strong current-carrying relay is related to, including the movable contact spring that pushes away the card and have the movable contact spring contact, be provided with the promotion post in the main part of pushing away the card, be equipped with on the movable contact spring and promote the spacing portion of post complex, its characterized in that with this: the height of the main body of the push card is higher than the position of a movable spring contact of the movable spring, and two side edges of the main body of the push card are bent towards the direction close to the movable spring to form shielding strips. The utility model discloses an improve the height that promotes the card to the setting hides the strip, makes and promotes the card and can block the electric arc splash that the closed disconnection in-process of contact produced, avoids the splash to get into the magnetic circuit part, influences insulating properties and mechanical action.

Description

Pushing structure of strong current-carrying relay

Technical Field

The utility model belongs to the technical field of circuit control, a promotion structure of relay is related to, especially, relate to a promotion structure of strong current-carrying relay.

Background

The relay is an electronic control device, which plays the roles of automatic regulation, safety protection, conversion circuit, etc. in the circuit and is widely applied to devices of power protection, automation, motion, remote control, measurement, communication, etc. Current relay includes casing, stationary reed, movable contact spring, promotion piece and magnetic circuit part, sets up the movable contact spring on the movable contact spring, sets up the stationary contact spring who corresponds with the movable contact spring on the stationary contact spring, promotes the piece and is connected with the movable contact spring, and the magnetic circuit part is connected with the promotion piece, and the magnetic circuit part control promotes the piece and actuates, promotes the piece and promotes the movable contact spring, makes the movable contact spring contact on the movable contact spring and the stationary contact spring contact on the stationary contact spring. During each closing and opening of the contacts, an arc is generated, and carbonized spatter affects the insulation performance and the mechanical action.

The utility model discloses a chinese utility model patent that application number is CN202020222377.2 discloses a little volume intelligence is magnetic latching relay for house, a mounting base, the mounting base middle part is equipped with electromagnetism mounting structure, wherein, electromagnetism return mechanism is including promoting the card, it has the spacing portion of connection to promote the card middle part, and promote card one side and radially be equipped with two installation cylinders that are used for installing movable spring mechanism, the installation cylinder sets up respectively and is connecting spacing portion both ends, and the installation cylinder passes the other end of connecting spacing portion and is connected with the plug-in block, electromagnetism return mechanism links to each other with L shape armature coupling assembling one side through the plug-in block.

The technical scheme provides a connection structure of a push card, but the problem of electric arc splashing cannot be solved.

Disclosure of Invention

The object of the present application is to solve the above problems, and to provide a push structure of a strong current-carrying relay;

in order to achieve the above purpose, the utility model adopts the following technical proposal:

the application creatively provides a promotion structure of strong current-carrying relay, including promoting the card and having the movable contact spring of movable contact spring, be provided with the promotion post in the main part of promotion card, be equipped with on the movable contact spring and promote the spacing portion of post complex, its characterized in that with this: the height of the main body of the push card is higher than the position of a movable spring contact of the movable spring, and two side edges of the main body of the push card are bent towards the direction close to the movable spring to form shielding strips.

In the above pushing structure of the strong current-carrying relay, two pushing posts are provided, and are arranged on the pushing card at intervals along the horizontal direction; and two sides of the movable spring are respectively provided with a notch formed by two convex angles as the limiting part.

In the above pushing structure of the high current carrying relay, the main body of the pushing clamp is provided with two bosses extending to one side of the movable reed, and the pushing column is arranged on the bosses.

In the above pushing structure of the high current carrying relay, the movable spring includes a connecting portion for connecting with the base, a first bending portion bending to a side away from the pushing card is disposed on the connecting portion, a second bending portion bending to a side close to the pushing card is disposed on the first bending portion, and the limiting portions are disposed on two side edges of the second bending portion.

In the above pushing structure of the high current carrying relay, a concave portion is provided on a side surface of the main body of the pushing card close to the movable spring, and the concave portion is located above the pushing column and corresponds to an upper portion of the movable spring.

In the above-mentioned pushing structure of the high current-carrying relay, the inner side of the shielding strip is an inclined plane.

In the above pushing structure of the high current carrying relay, one side of the pushing clamp, which is away from the movable spring, is provided with an armature connecting portion, the armature connecting portion is connected with the main body through a transverse connecting strip, and a first slot for connecting with the base is formed below the transverse connecting strip.

In the above pushing structure of the high current carrying relay, one side of the armature connecting part, which is far away from the main body, is provided with two plugging parts which are arranged at intervals along the horizontal direction, and a second slot for connecting the armature is formed between the two plugging parts.

In the above-mentioned pushing structure of the high current-carrying relay, the armature connecting portion has a void-avoiding portion below the two insertion portions, and a chamfer is provided on a lower portion of a surface of the armature connecting portion between the two insertion portions.

In the above pushing structure of the high current carrying relay, the height of the boss on the surface of the pushing clamp is smaller than the height of the shielding strips on the two sides of the main body on the surface of the pushing clamp.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses an improve the height that promotes the card to the setting hides the strip, makes and promotes the card and can block the electric arc splash that the closed disconnection in-process of contact produced, avoids the splash to get into the magnetic circuit part, influences insulating properties and mechanical action.

The pushing columns on the two sides are connected with the movable spring pieces, so that the connecting points can be kept away from the middle position with stronger current, and the pushing clamp is prevented from being damaged by high temperature due to overhigh temperature.

The concave part is provided with a matched boss to form avoidance of the movable spring plate, particularly the movable spring contact, so that the movable spring plate and the main body part of the push card can be relatively separated, and the situation that the position with stronger current is directly connected with the main body of the push card is further avoided.

The connection of the push card is stable, and the action process is stable.

Drawings

Fig. 1 is a schematic diagram of a pushing structure provided in the present application.

Fig. 2 is a schematic structural diagram of a push card provided in the present application.

Fig. 3 is another angle structure diagram of the push card provided in the present application.

Fig. 4 is a schematic structural diagram of the movable spring plate provided by the present application.

In the figure, the push card 1, the main body 10, the concave part 11, the movable spring piece 2, the movable spring contact 20, the connecting part 21, the first bending part 22, the second bending part 23, the push column 3, the limiting part 4, the convex angle 41, the shielding strip 5, the boss 6, the armature connecting part 7, the clearance part 71, the oblique plane 72, the transverse connecting strip 8, the first slot 80, the inserting part 9 and the second slot 90.

Detailed Description

Further illustrated by the following specific examples;

as shown in fig. 1, fig. 2 and fig. 4, a pushing structure of a high current-carrying relay includes a pushing card 1 and a movable spring piece 2 having a movable spring contact 20, a pushing column 3 is disposed on a main body 10 of the pushing card 1, a limiting portion 4 matched with the pushing column 3 is disposed on the movable spring piece 2, the main body 10 of the pushing card 1 is higher than the movable spring contact 20 of the movable spring piece 2, and two side edges of the main body 10 of the pushing card 1 are bent towards a direction close to the movable spring piece 2 to form a shielding strip 5.

The utility model discloses an improve the height that pushes away card 1 to the setting shelters from strip 5, makes and pushes away card 1 and can block the electric arc splash that the closed disconnection in-process of contact produced, avoids the splash to get into the magnetic circuit part, influences insulating properties and mechanical action.

Specifically, there are two pushing columns 3, which are arranged on the pushing card 1 at intervals along the horizontal direction, and the top ends of the two pushing columns 3 are arc-shaped. Two sides of the movable spring leaf 2 are respectively provided with an arc-shaped notch formed by two convex angles 41 as a limiting part 4. The two limiting parts 4 are correspondingly clamped with the two pushing columns 3 respectively. The pushing columns 3 on the two sides are connected with the movable spring pieces 2, so that the connection points can be kept away from the middle position with stronger current, and the pushing clamp 1 is prevented from being damaged by high temperature due to overhigh temperature.

The push card 1 in this embodiment is preferably made of a liquid crystal polymer material.

Referring to fig. 1 and 2, the main body 10 of the push card 1 is provided with two bosses 6 extending toward the movable spring piece 2, and the push column 3 is provided on the bosses 6. The main body 10 of the push card 1 has a concave portion 11 on one side surface thereof close to the movable spring piece 2, and the concave portion 11 is located above the push column 3 and corresponds to the upper portion of the movable spring piece 2. The arrangement of the concave part 11 forms the matching boss 6 to form the avoidance of the movable spring piece 2, particularly the movable spring contact 20, so that the movable spring piece 2 and the main body 10 part of the push card 1 can be relatively separated, and the position with stronger current is further prevented from being directly connected with the main body 10 of the push card 1.

Preferably, the inner side of the shielding strip 5 is a slope.

Further, the height of the boss 6 on the surface of the push card 1 is smaller than the height of the shielding strips 5 on both sides of the main body 10 on the surface of the push card 1. Thereby make movable reed 2 block in and push 3 and receive sheltering from of sheltering from strip 5 when 6 butts of boss, play better stopping and guard action.

As shown in fig. 1 and 3, an armature connection portion 7 is disposed on a side of the push card 1 away from the movable spring 4, the armature connection portion 7 is connected with the main body 10 through a transverse connection bar 8, and a first slot 80 for connecting with a base is formed below the transverse connection bar 8. The armature connecting part 7 has two plug parts 9 arranged at intervals in the horizontal direction on one side facing away from the main body 10, and a second slot 90 for connecting with the armature is formed between the two plug parts 9.

The first slot 80 and the second slot 90 can be respectively matched with the base and the armature from two directions to form plug connection, and the structural stability is good.

The armature connection part 7 has a recess 71 below the two plug parts 9, and a chamfer 72 below the surface of the armature connection part 7 between the two plug parts 9. The chamfer 72 can give way to the armature during the swing, thus ensuring a smooth action of pushing the card 1.

As shown in fig. 1 and 4, the movable spring 2 includes a connecting portion 21 for connecting with the base, a first bending portion 22 bending toward a side away from the push card 1 is disposed on the connecting portion 21, a second bending portion 23 bending toward a side close to the push card 1 is disposed on the first bending portion 22, and the limiting portions 4 are disposed on two sides of the second bending portion 23. The movable spring piece 2 has good elasticity through two bending structures.

The working principle of the utility model is as follows:

the first slot 80 and the second slot 90 of the push card 1 are respectively matched and spliced with the base and the armature, the connecting part 21 of the movable spring leaf 2 is connected with the base, the limiting part 4 of the movable spring leaf 2 is clamped with the push column 3, in the action process, the push card 1 pushes the movable spring leaf 2 through the position of the boss 6 under the action force of the armature, the movable spring contact 20 of the movable spring leaf 2 is closed with the static spring contact of the static spring leaf to form a passage, and in the contact closing and opening processes, splashes are blocked by the blocking strip 5 and the main body of the push card 1 and do not enter a magnetic circuit part.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms push card 1, main body 10, concave portion 11, movable spring 2, movable spring contact 20, connecting portion 21, first bent portion 22, second bent portion 23, push post 3, stopper portion 4, convex portion 41, shielding bar 5, boss 6, armature connecting portion 7, clearance portion 71, chamfered surface 72, transverse connecting bar 8, first slot 80, plug portion 9, second slot 90, etc. are used more herein. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims

1. The utility model provides a strong current-carrying relay's promotion structure, is provided with on main part (10) of propelling movement card (1) and promotes post (3) including propelling movement card (1) and movable reed (2) that have movable spring contact (20), be equipped with on movable reed (2) with this spacing portion (4) of promotion post (3) complex, its characterized in that: the height of a main body (10) of the push card (1) is higher than that of a movable spring contact (20) of the movable spring (2), and two side edges of the main body (10) of the push card (1) are bent towards the direction close to the movable spring (2) to form shielding strips (5).

2. The push structure of a high current carrying relay according to claim 1, wherein: the two pushing columns (3) are arranged on the pushing card (1) at intervals along the horizontal direction; two sides of the movable spring leaf (2) are respectively provided with a notch formed by two convex angles (41) as the limiting part (4).

3. The push structure of a high current carrying relay according to claim 2, wherein: the push clamp is characterized in that two bosses (6) extending to one side of the movable reed (2) are arranged on a main body (10) of the push clamp (1), and the push column (3) is arranged on the bosses (6).

4. The push structure of a high current carrying relay according to claim 1, wherein: the movable spring piece (2) comprises a connecting portion (21) connected with the base, a first bending portion (22) which is bent back to one side of the pushing card (1) is arranged on the connecting portion (21), a second bending portion (23) which is bent to one side close to the pushing card (1) is arranged on the first bending portion (22), and the limiting portion (4) is arranged on two side edges of the second bending portion (23).

5. The push structure of a high current carrying relay according to claim 4, wherein: a concave part (11) is arranged on one side surface of the main body (10) of the push card (1) close to the movable spring piece (2), and the concave part (11) is positioned above the push column (3) and corresponds to the upper part of the movable spring piece (2).

6. The push structure of a high current carrying relay according to claim 1, wherein: the inner side of the shielding strip (5) is an inclined plane.

7. The push structure of a high current carrying relay according to claim 1, wherein: the push card (1) deviates from one side of the movable spring (2) and is provided with an armature connecting part (7), the armature connecting part (7) is connected with the main body (10) through a transverse connecting strip (8), and a first slot (80) used for being connected with the base is formed below the transverse connecting strip (8).

8. The push structure of a high current carrying relay according to claim 7, wherein: one side face, departing from the main body (10), of the armature connecting part (7) is provided with two plug parts (9) which are arranged at intervals along the horizontal direction, and a second slot (90) used for being connected with the armature is formed between the two plug parts (9).

9. The push structure of a high current carrying relay according to claim 8, wherein: the armature connecting part (7) is positioned below the two plug parts (9) and is provided with a space avoiding part (71), and the lower part of the surface of the armature connecting part (7) positioned between the two plug parts (9) is provided with a chamfer surface (72).

10. A push structure of a high current carrying relay according to claim 3, wherein: the height of the boss (6) on the surface of the push card (1) is less than the height of the shielding strips (5) on the two sides of the main body (10) on the surface of the push card (1).