CN214254288U

CN214254288U - Shock-resistant contact assembly

Info

Publication number: CN214254288U
Application number: CN202120348163.4U
Authority: CN
Inventors: 任世刚
Original assignee: Sanyou Corp Ltd
Current assignee: Sanyou Corp Ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-09-21
Anticipated expiration: 2031-02-07

Abstract

The utility model relates to the technical field of relay accessories, in particular to an impact-resistant contact assembly, which comprises a movable terminal and a static terminal, wherein the movable terminal is provided with a movable reed which is used for contacting and switching on the static terminal or separating and disconnecting the static terminal; the magnetic-field-induced vibration isolation device also comprises a first magnetic conduction piece and a second magnetic conduction piece matched with the first magnetic conduction piece, wherein the first magnetic conduction piece is arranged on the movable reed; in the use process of the relay, external current enables the first magnetic conduction piece to be magnetized through the movable contact spring piece and has magnetic attraction, the magnetic attraction after the first magnetic conduction piece is magnetized enables the movable contact spring piece and the static terminal to be kept in a contact conduction state, the relay is prevented from being subjected to current short circuit impact or external vibration impact to enable the movable contact spring piece and the static terminal to be separated and separated from each other, the movable contact spring piece and the static terminal are enabled to be stably contacted and conducted, and the stability of the use performance of the relay is guaranteed.

Description

Shock-resistant contact assembly

Technical Field

The utility model relates to a relay accessory technical field especially discloses a contact subassembly shocks resistance.

Background

The relay is one of automatic switches commonly used in various circuits, the relay comprises a plurality of parts which are assembled, a contact assembly is one of basic accessories of the relay, the contact assembly mainly comprises a moving plate and a static plate which is connected with or disconnected from the moving plate, and due to the fact that the structural design of the contact assembly is unreasonable, when the contact assembly is in a connected state or a disconnected state, the moving plate and the static plate are often separated from each other due to external vibration, and the relay is poor in use.

SUMMERY OF THE UTILITY MODEL

In order to overcome the shortcoming and the deficiency that exist among the prior art, the utility model aims to provide a contact subassembly shocks resistance, the magnetism suction after the magnetization of first magnetic conduction spare attracts the second magnetic conduction spare to make movable contact spring and quiet terminal keep at the contact on-state, and then makes contact subassembly stably keep in required state, avoids the relay to receive external vibrations and leads actuating terminal, quiet terminal to separate each other and throw off, guarantees the stability of relay service performance.

In order to achieve the above object, the utility model discloses a shock-resistant contact assembly, including movable terminal and static terminal, the movable terminal has a movable reed, the movable reed is used for contacting and switching on the static terminal or separating and disconnecting with the static terminal; the magnetic circuit further comprises a first magnetic conduction piece and a second magnetic conduction piece matched with the first magnetic conduction piece, the first magnetic conduction piece is arranged on the movable reed, external current enables the first magnetic conduction piece to be magnetized through the movable reed and has magnetic attraction, and the magnetic attraction after the first magnetic conduction piece is magnetized attracts the second magnetic conduction piece to enable the movable reed and the static terminal to be kept in a contact conduction state.

The magnetic contact type magnetic separation device comprises a movable contact and a fixed contact, wherein the movable contact is arranged at one end of a movable spring, the fixed contact is arranged at one end of a fixed terminal, and a first magnetic conduction piece is arranged in the middle of the movable spring; the moving contact and the static contact are in contact conduction or separated disconnection, and the magnetic attraction force generated after the first magnetic conduction piece is magnetized attracts the second magnetic conduction piece to enable the moving contact and the static contact to be kept in a contact conduction state.

The moving contact and the static contact respectively comprise a riveting column, a cone frustum arranged on the riveting column and a cylindrical bulge arranged on the cone frustum, the riveting column and the cylindrical bulge are respectively positioned at two sides, which are far away from each other, the outer diameter of one end, close to the riveting column, of the cone frustum is larger than that of one end, close to the cylindrical bulge, of the cone frustum, the outer diameter of one end, close to the riveting column, of the cone frustum is larger than that of the riveting column, and the outer diameter of one end, close to the cylindrical bulge, of the cone frustum is larger than that of the cylindrical bulge; the movable spring leaf and the static terminal are both provided with riveting holes for accommodating riveting columns, and one end of the cone frustum close to the riveting columns is used for abutting against the movable spring leaf or the static terminal; the cylindrical protrusion of the moving contact and the cylindrical protrusion of the static contact are used for conducting or disconnecting in a contact mode.

The movable terminal comprises an insulator, the movable terminal comprises a conductive pin, the conductive pin and the static terminal are both arranged on the insulator, the movable spring piece is arranged on the conductive pin, the second magnetic conduction piece is arranged on the insulator, the second magnetic conduction piece is located between the movable spring piece and the static terminal, and magnetic attraction force generated after magnetization of the first magnetic conduction piece attracts the second magnetic conduction piece to enable the first magnetic conduction piece and the second magnetic conduction piece to be attached together.

The second magnetic conducting part is provided with a clamping part, a flat plate part formed by bending the clamping part and a clamping protrusion arranged on the clamping part, the clamping part is arranged in the clamping groove of the insulator, and the clamping protrusion is used for abutting against the side face of the inner groove of the clamping groove.

The clamping parts are arranged on the two sides of the clamping part, and the clamping parts are arranged on the two sides of the clamping part.

The first magnetic conduction piece is U-shaped, the first magnetic conduction piece is provided with a body part and two limiting parts arranged on the same side of the body part, the body part and the two limiting parts form a yielding groove used for accommodating the movable spring, and the two limiting parts are used for abutting against two ends of the second magnetic conduction piece.

The movable spring pieces are arranged in a plurality of numbers, the movable spring pieces are attached together, and the limiting part is provided with a positioning part extending into the space between every two adjacent movable spring pieces.

The utility model has the advantages that: in the use process of the relay, external current enables the first magnetic conduction piece to be magnetized to have magnetic attraction through the movable contact spring, the magnetic attraction after the first magnetic conduction piece is magnetized attracts the second magnetic conduction piece to enable the movable contact spring and the static terminal to be kept in a contact conduction state, then the contact assembly is stably kept in a required state, the relay is prevented from being vibrated by the external to enable the movable contact spring and the static terminal to be separated and separated from each other, and the stability of the use performance of the relay is guaranteed.

Drawings

Fig. 1 is a schematic exploded view of the present invention;

fig. 2 is a schematic structural view of a second magnetic conduction member of the present invention;

fig. 3 is a schematic structural view of a first magnetic conduction member of the present invention;

fig. 4 is a schematic structural diagram of the moving contact or the static contact according to the present invention.

The reference numerals include:

1-moving terminal 2-static terminal 3-moving reed

4-first magnetic conduction member 5-second magnetic conduction member 6-moving contact

7-static contact 8-riveting column 9-cone frustum

11-cylindrical protrusion 12-riveting hole 13-insulator

14-conductive pin 15-clamping part 16-flat plate part

17-holding projection 18-body part 19-limiting part

21-relief groove 22-positioning portion.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying drawings, which are not intended to limit the present invention.

Referring to fig. 1 to 4, an impact-resistant contact assembly of the present invention includes a movable terminal 1 and a stationary terminal 2, wherein the movable terminal 1 has a movable contact spring 3, and the movable contact spring 3 is used for contacting and connecting the stationary terminal 2 or separating and disconnecting from the stationary terminal 2; the magnetic flux-conducting device further comprises a first magnetic conducting part 4 and a second magnetic conducting part 5 matched with the first magnetic conducting part 4, and according to actual needs, the magnetic conducting parts are made of magnetic materials capable of being magnetized, for example, the magnetic conducting parts are made of magnetic materials containing iron, cobalt or nickel.

The first magnetic conduction piece 4 is arranged on the movable reed 3, external current enables the first magnetic conduction piece 4 to be magnetized to have magnetic attraction through the movable reed 3, and the magnetic attraction after the first magnetic conduction piece 4 is magnetized enables the movable reed 3 and the static terminal 2 to be kept in a contact conduction state or a separation disconnection state through attracting the second magnetic conduction piece 5.

In the use process of the relay, external current enables the first magnetic conduction piece 4 to be magnetized to have magnetic attraction through the movable contact spring 3, the magnetic attraction after the first magnetic conduction piece 4 is magnetized attracts the second magnetic conduction piece 5 to enable the movable contact spring 3 and the static terminal 2 to be kept in a contact conduction state or a separation disconnection state, then the contact assembly is stably kept in a required state, the relay is prevented from being vibrated by the external to enable the movable contact spring 1 and the static terminal 2 to be separated and disconnected from each other, and the stability of the use performance of the relay is guaranteed.

The contact assembly further comprises a moving contact 6 and a fixed contact 7, the moving contact 6 is arranged at one end of the moving reed 3, the fixed contact 7 is arranged at one end of the fixed terminal 2, and the first magnetic conduction piece 4 is arranged at the middle part of the moving reed 3; the moving contact 6 and the static contact 7 are in contact conduction or separated disconnection, and the magnetic attraction force generated after the first magnetic conduction piece 4 is magnetized attracts the second magnetic conduction piece 5 to enable the moving contact 6 and the static contact 7 to be stably kept in a contact conduction state.

The structure of moving contact 6 is the same with the structure of static contact 7, moving contact 6, static contact 7 all includes riveting post 8, set up the circular cone platform 9 on riveting post 8, the cylinder arch 11 of setting on circular cone platform 9, moving contact 6, static contact 7 formula structure as an organic whole, riveting post 8, cylinder arch 11 is located the left and right sides that circular cone platform 9 kept away from each other respectively, the external diameter that circular cone platform 9 is close to riveting post 8 one end is greater than the external diameter that circular cone platform 9 is close to cylinder arch 11 one end, the external diameter that circular cone platform 9 is close to riveting post 8 one end is greater than the external diameter of riveting post 8, the external diameter that circular cone platform 9 is close to cylinder arch 11 one end is greater than the external diameter of cylinder arch 11.

The movable contact spring 3 and the static terminal 2 are respectively provided with a riveting hole 12 for accommodating a riveting column 8, the movable contact 6 is riveted on the movable contact spring 3, the static contact 7 is riveted on the static terminal 2, and one end of the cone frustum 9 close to the riveting column 8 is used for abutting against the movable contact spring 3 or the static terminal 2; the cylindrical protrusion 11 of the moving contact 6 and the cylindrical protrusion 11 of the static contact 7 are used for conducting or disconnecting the contact.

The contact assembly further comprises an insulator 13, the movable terminal 1 further comprises a conductive pin 14, the conductive pin 14 and the static terminal 2 are fixedly arranged on the insulator 13, the magnetic conduction piece, the movable contact 6 and the static contact 7 are located in the insulator 13, one end, far away from the movable contact 6, of the movable contact 3 is fixedly arranged on the conductive pin 14, the second magnetic conduction piece 5 is fixedly arranged on the insulator 13, the second magnetic conduction piece 5 is located between the movable contact 3 and the static terminal 2, and magnetic suction force generated after magnetization of the first magnetic conduction piece 4 attracts the second magnetic conduction piece 5 to enable the first magnetic conduction piece 4 and the second magnetic conduction piece 5 to be attached together.

The movable terminal 1 and the static terminal 2 are ensured to be stably kept in a contact conduction state, after external current stops, the first magnetic conduction piece 4 loses magnetism, the movable reed 3 drives the first magnetic conduction piece 4 and the second magnetic conduction piece 5 to be separated under the action of elastic force, so that the movable terminal 1 and the static terminal 2 are separated and disconnected, the movable reed 3 is balanced by the aid of the first magnetic conduction piece 4, and the probability of position movement caused by the fact that the relay is vibrated from the outside is reduced.

The second magnetic conducting member 5 has a holding portion 15, a flat plate portion 16 bent from the holding portion 15, and a holding protrusion 17 disposed on the holding portion 15, preferably, the holding portion 15 and the flat plate portion 16 are vertically disposed, the holding portion 15 is installed in the slot of the insulator 13, and the holding protrusion 17 is used for abutting against the side surface of the inner slot of the slot. Through the arrangement of the holding projection 17, the friction force between the holding portion 15 and the insulator 13 is increased, and the second magnetic conduction member 5 is ensured to be stably installed on the insulator 13. Through the arrangement of the flat plate portion 16, the contact area between the first magnetic conduction member 4 and the second magnetic conduction member 5 is increased, so that the first magnetic conduction member 4 can stably attract the second magnetic conduction member 5.

The number of the holding projections 17 is plural, and the plural holding projections 17 are respectively formed by projecting from the holding portion 15 in different directions. By means of the structural design of the plurality of holding protrusions 17, friction forces in different directions are applied between the holding part 15 and the insulator 13, and stable installation of the second magnetic conductive member 5 on the insulator 13 is further ensured. Preferably, a plurality of catching projections 17 are respectively located at upper and lower sides of the catching portion 15. Of course, the number of the catching projections 17 on the same side of the catching portion 15 may be plural.

The first magnetic conduction member 4 is U-shaped, the first magnetic conduction member 4 has a body portion 18 and two limiting portions 19 disposed on the same side of the body portion 18, the two limiting portions 19 are respectively formed by bending two ends of the body portion 18 away from each other, preferably, the body portion 18 and the limiting portions 19 are disposed perpendicularly, the body portion 18 and the two limiting portions 19 form a recess 21 for accommodating the movable spring piece 3, and the two limiting portions 19 are used for abutting against two ends of the second magnetic conduction member 5.

Through the structural arrangement of the first magnetic conduction member 4, after the first magnetic conduction member 4 is magnetized, the two limiting parts 19 form an N pole and an S pole respectively, and after the first magnetic conduction member 4 attracts the second magnetic conduction member 5, the magnetic induction line forms a circulating closed route among one limiting part 19, the second magnetic conduction member 5, the other limiting part 19 and the body part 18, so that the first magnetic conduction member 4 and the second magnetic conduction member 5 are stably attracted together.

The number of the movable spring pieces 3 is multiple, the movable spring pieces 3 are attached together, and the limiting part 19 is provided with a positioning part 22 extending into the space between two adjacent movable spring pieces 3. By means of the structural design of the movable spring pieces 3, on one hand, the rigidity of the movable spring pieces 3 is increased, and on the other hand, the magnetization intensity of the movable spring pieces 3 on the first magnetic conduction piece 4 is improved. By means of the stopping and limiting of the two movable springs 3 on the positioning portion 22, the first magnetic conduction member 4 is ensured to be stably limited on the movable terminal 1, and the first magnetic conduction member 4 is prevented from being separated from the movable terminal 1 and is prevented from being badly used.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. An impact-resistant contact assembly comprises a movable terminal and a fixed terminal, wherein the movable terminal is provided with a movable reed which is used for contacting and conducting the fixed terminal or separating and disconnecting the fixed terminal; the method is characterized in that: the magnetic attraction force generated after the first magnetic conduction piece is magnetized attracts the second magnetic conduction piece to enable the movable spring piece and the static terminal to be kept in a contact conduction state or a separation disconnection state.

2. The shock resistant contact assembly as recited in claim 1, wherein: the magnetic conductive device also comprises a moving contact and a static contact, wherein the moving contact is arranged at one end of the moving reed, the static contact is arranged at one end of the static terminal, and the first magnetic conductive part is arranged in the middle of the moving reed; the moving contact and the static contact are in contact conduction or separated disconnection, and the magnetic attraction force generated after the first magnetic conduction piece is magnetized attracts the second magnetic conduction piece to enable the moving contact and the static contact to be kept in a contact conduction state.

3. The shock resistant contact assembly as recited in claim 2, wherein: the moving contact and the static contact respectively comprise a riveting column, a cone frustum arranged on the riveting column and a cylindrical bulge arranged on the cone frustum, the riveting column and the cylindrical bulge are respectively positioned at two sides, which are far away from each other, the outer diameter of one end, close to the riveting column, of the cone frustum is larger than that of one end, close to the cylindrical bulge, of the cone frustum, the outer diameter of one end, close to the riveting column, of the cone frustum is larger than that of the riveting column, and the outer diameter of one end, close to the cylindrical bulge, of the cone frustum is larger than that of the cylindrical bulge; the movable spring leaf and the static terminal are both provided with riveting holes for accommodating riveting columns, and one end of the cone frustum close to the riveting columns is used for abutting against the movable spring leaf or the static terminal; the cylindrical protrusion of the moving contact and the cylindrical protrusion of the static contact are used for conducting or disconnecting in a contact mode.

4. The shock resistant contact assembly as recited in claim 1, wherein: the movable contact spring piece is characterized by further comprising an insulator, the movable contact spring piece and the static contact spring piece are arranged on the insulator, the movable contact spring piece is arranged on the movable contact spring piece, the second magnetic conduction piece is arranged on the insulator and located between the movable contact spring piece and the static contact spring piece, and magnetic attraction force generated after magnetization of the first magnetic conduction piece attracts the second magnetic conduction piece to enable the first magnetic conduction piece and the second magnetic conduction piece to be attached together.

5. The impact-resistant contact assembly of claim 4, wherein: the second magnetic conducting piece is provided with a clamping part, a flat plate part formed by bending the clamping part and a clamping protrusion arranged on the clamping part, the clamping part is arranged in the clamping groove of the insulator, and the clamping protrusion is used for abutting against the side face of the inner groove of the clamping groove.

6. The impact-resistant contact assembly of claim 5, wherein: the clamping protrusions are arranged in a plurality of numbers and are respectively formed by protruding the clamping parts in different directions.

7. The shock resistant contact assembly as recited in claim 1, wherein: the first magnetic conduction piece is U-shaped, the first magnetic conduction piece is provided with a body part and two limiting parts arranged on the same side of the body part, the body part and the two limiting parts form a yielding groove used for accommodating the movable spring, and the two limiting parts are used for abutting against two ends of the second magnetic conduction piece.

8. The impact-resistant contact assembly of claim 7, wherein: the quantity of movable spring leaf is a plurality of, and a plurality of movable spring leaf pastes and establishes together, and spacing portion has the location portion of stretching into between two adjacent movable spring leaves.