CN209962972U

CN209962972U - Movable contact spring improved relay

Info

Publication number: CN209962972U
Application number: CN201920990252.1U
Authority: CN
Inventors: 刘振伟
Original assignee: Sanyou Corp Ltd
Current assignee: Sanyou Corp Ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-01-17
Anticipated expiration: 2029-06-27

Abstract

The utility model belongs to the technical field of the relay technique and specifically relates to indicate a movable contact spring improvement formula relay, it includes base, electromagnetic component, drive assembly and static and movable spring subassembly, drive assembly sets up the ejector pad on the base and the lug that sets up with ejector pad an organic whole including the activity, static and movable spring subassembly is including setting up the movable contact spring on the base, the movable contact spring is equipped with two curved arc pieces that are used for using with the lug cooperation, the lug is used for the abrupt stretch into between two curved arc pieces, the curved arc district of curved arc piece is used for the surface of the lug of contradicting, electromagnetic component via drive assembly orders about the ejector pad and makes the movable contact spring remove. The movable contact spring of this application is equipped with curved arc piece, curved arc piece and movable contact spring integrated into one piece, curved arc piece and movable contact spring refute the department of connecing and be convex, and the lug is located between two curved arc pieces, appears the frictioning when effectively avoiding the lug activity, can avoid the lug wearing and tearing, prevents that the lug from forming the pit, effectively avoids lug and movable contact spring card dead, improves the stability and the reliability of relay.

Description

Movable contact spring improved relay

Technical Field

The utility model belongs to the technical field of the relay technique and specifically relates to indicate a movable contact spring improvement formula relay.

Background

The relay generally comprises an iron core, a coil, an armature, a contact spring and the like, wherein a certain voltage is applied to two ends of the coil, a certain current flows in the coil, so that an electromagnetic effect is generated, and the armature is attracted to the iron core under the action of electromagnetic force attraction, so that the movable contact is driven to be attracted with a fixed contact (normally open contact). When the coil is powered off, the electromagnetic attraction force disappears, and the armature returns to the original position to release the movable contact and the original static contact (normally closed contact). Thus, the circuit is attracted and released, thereby achieving the purposes of conduction and cut-off in the circuit. For the "normally open, normally closed" contacts of a relay, a distinction can be made: the stationary contact in the off state when the relay coil is not energized is referred to as a "normally open contact", and the stationary contact in the on state is referred to as a "normally closed contact".

The push block of a general relay is usually made of plastic, the movable spring is made of metal material, as shown in fig. 6, the edge of the matching part of the movable spring and the convex block of the push block of the conventional relay is sharp, after the push block pushes and collides the movable spring for many times, the movable spring easily scrapes plastic debris on the convex block, and the plastic debris can interfere with the normal use of the relay; in addition, when the bump is abraded for many times, a pit is formed, so that the bump and the movable spring leaf are easily clamped, the relay cannot normally work and is scrapped, and great troubles are caused to people.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a movable contact spring improvement formula relay can avoid the lug wearing and tearing, prevents that the lug from forming the pit, effectively avoids lug and movable contact spring card dead.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a movable contact spring improvement formula relay, its includes the base, still including setting up electromagnetic component on the base, setting up transmission assembly on the base and setting up the quiet movable contact spring subassembly on the base, transmission assembly sets up the ejector pad on the base and the lug that sets up with the ejector pad is integrative including the activity, quiet movable contact spring subassembly is including setting up the movable contact spring on the base, the movable contact spring is equipped with two curved arc pieces that are used for using with the lug cooperation, and the lug is used for the abrupt stretch into between two curved arc pieces, and the curved arc district of curved arc piece is used for the surface of conflict lug, and electromagnetic component via transmission assembly orders about the ejector pad and makes the movable contact spring remove.

Furthermore, the electromagnetic assembly comprises a coil rack arranged on the base, a coil sleeved outside the coil rack, an iron core penetrating through the coil rack and two coil terminals inserted in the base, wherein the two coil terminals are electrically connected with two ends of the coil respectively.

Furthermore, the transmission assembly further comprises an armature movably arranged at one end of the base or/and the coil frame, the iron core is used for attracting the armature to enable the armature to move, and one end of the armature penetrates through one end, far away from the projection, of the push block.

Further, the static and dynamic spring assembly further comprises a first static spring and a second static spring, and the first static spring and the second static spring are respectively arranged on two sides of the dynamic spring.

Furthermore, the static and dynamic spring assembly further comprises a first static contact, a second static contact and a dynamic contact, wherein the first static contact and the second static contact are respectively arranged on the first static spring and the second static spring, and the dynamic contact is arranged on the dynamic spring.

Furthermore, the first static reed, the second static reed and the movable reed are provided with two reed welding feet.

Further, the movable reed improved relay comprises a shell, and the shell is provided with a ventilation through hole.

Furthermore, the automatic reed of the curved arc piece is formed by tearing and bending, and the curved arc area of the curved arc piece is in a smooth arc shape.

Furthermore, the convex block is in a conical shape, and the outer diameter of the free end of the convex block is smaller than that of one end, close to the push block, of the convex block.

The utility model has the advantages that: the movable contact spring of this application is equipped with curved arc piece, curved arc piece and movable contact spring integrated into one piece, curved arc piece and movable contact spring refute the department of connecing and be convex, and the lug is located between two curved arc pieces, appears the frictioning when effectively avoiding the lug activity, can avoid the lug wearing and tearing, prevents that the lug from forming the pit, effectively avoids lug and movable contact spring card dead, improves the stability and the reliability of relay.

Drawings

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

Fig. 2 is a partially enlarged schematic structural view of a portion a in fig. 1.

Fig. 3 is a schematic structural diagram of the utility model after the housing is hidden.

Fig. 4 is a schematic diagram of an exploded structure of the present invention.

Fig. 5 is a schematic structural diagram of the present invention after the housing and the base are hidden.

Fig. 6 is a schematic structural diagram of a bump and a movable spring of a conventional relay.

Description of reference numerals:

1-a base; 2-an electromagnetic assembly; 21-a coil former; 22-a coil; 23-a core; 24-coil terminals; 3-a transmission assembly; 31-a push block; 32-bumps; 33-an armature; 4-a static and dynamic reed assembly; 41-movable reed; 42-bent arc sheet; 43-a first stationary reed; 44-a second stationary reed; 45-a first stationary contact; 46-a second stationary contact; 47-moving contact; 48-reed welding feet; 5-a housing; 51-breathable through holes.

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 drawings, which are not intended to limit the present invention.

As shown in fig. 1 to 6, the utility model provides a pair of movable spring improved relay, it includes base 1, still including setting up electromagnetic component 2 on base 1, setting up transmission assembly 3 on base 1 and setting up static and movable spring subassembly 4 on base 1, transmission assembly 3 includes that the activity sets up the lug 32 on push block 31 on base 1 and with the integrative setting of push block 31, static and movable spring subassembly 4 is including setting up movable spring 41 on base 1, movable spring 41 is equipped with two curved arc pieces 42 that are used for using with lug 32 cooperation, and lug 32 is used for the abrupt stretch into between two curved arc pieces 42, and the curved arc district of curved arc piece 42 is used for contradicting the surface of lug 32, and electromagnetic component 2 via transmission assembly 3 orders about push block 31 makes movable spring 41 remove. The electromagnetic component 2 is electrified to drive the push block 31 to move.

The push block of a general relay is usually made of plastic, the movable spring is made of metal material, as shown in fig. 6, the edge of the matching part of the movable spring and the convex block of the push block of the conventional relay is sharp, after the push block pushes and collides the movable spring for many times, the movable spring easily scrapes plastic debris on the convex block, and the plastic debris can interfere with the normal use of the relay; in addition, when the bump is abraded for many times, a pit is formed, so that the bump and the movable spring leaf are easily clamped, and the relay cannot normally work and is scrapped; in order to solve the problem, this application is in the in-service use, and the movable reed 41 of this application is equipped with curved arc piece 42, curved arc piece 42 and movable reed 41 integrated into one piece, curved arc piece 42 is arc with movable reed 41's refute the junction, and lug 32 is located between two curved arc pieces 42, appears the frictioning when effectively avoiding lug 32 activity, can avoid the lug wearing and tearing, prevents that the lug from forming the pit, effectively avoids lug and movable reed card dead, improves the stability and the reliability of relay.

In this embodiment, the electromagnetic assembly 2 includes a coil frame 21 disposed on the base 1, a coil 22 sleeved outside the coil frame 21, an iron core 23 penetrating the coil frame 21, and two coil terminals 24 inserted in the base 1, where the two coil terminals 24 are electrically connected to two ends of the coil 22 respectively. The transmission component 3 further comprises an armature 33 movably arranged at one end of the base 1 or/and the coil rack 21, the iron core 23 is used for attracting the armature 33 to move the armature 33, and one end of the armature 33 penetrates through one end of the push block 31 far away from the lug 32; preferably, the iron core 23 is "U" shaped. Specifically, the coil 22 is formed by winding a conductive wire, the two coil terminals 24 are respectively connected with two ends of the conductive wire, after the two coil terminals 24 are connected to a power supply, the coil 22 generates an electromagnetic effect, the armature 33 is attracted to the iron core 23 under the action of electromagnetic force attraction, and the iron core 23 drives the push block 31 to move.

In this embodiment, the static-dynamic spring assembly 4 further includes a first static spring 43 and a second static spring 44, and the first static spring 43 and the second static spring 44 are respectively disposed on two sides of the dynamic spring 41. The static and dynamic spring assembly 4 further comprises a first static contact 45, a second static contact 46 and a dynamic contact 47, wherein the first static contact 45 and the second static contact 46 are respectively arranged on the first static spring 43 and the second static spring 44, and the dynamic contact 47 is arranged on the dynamic spring 41. The first fixed spring leaf 43, the second fixed spring leaf 44 and the movable spring leaf 41 are provided with two spring leaf welding feet 48. The movable contact spring 41 of the conventional relay easily scrapes plastic debris from the bump 32, and when the plastic debris is attached between the first fixed contact 45 and the movable contact 47 or between the second fixed contact 46 and the movable contact 47, the first fixed contact 45 and the movable contact 47 cannot be contacted and conducted or the second fixed contact 46 and the movable contact 47 cannot be contacted and conducted, so that the function of a control switch of the relay is lost, and a circuit control fault occurs; in order to solve the problems, the movable spring 41 of the present application is provided with the curved arc piece 42, the curved arc piece 42 and the movable spring 41 are integrally formed, the connection part of the curved arc piece 42 and the movable spring 41 is arc-shaped, the bump 32 is located between the two curved arc pieces 42, plastic debris is effectively prevented from occurring when the bump 32 moves, and then the plastic debris is prevented from being attached to the first stationary contact 45, the second stationary contact 46 or the movable contact 47, so that the stability and reliability of the relay are improved; the movable spring 41 has elasticity, the first stationary contact 45 is a normally closed contact, and the second stationary contact 46 is a normally open contact; as shown in fig. 5, when the coil 22 is energized, the armature 33 is attracted by the iron core 23, the armature 33 acts to drive the push block 31 to move rightwards, the lug 32 collides with the two curved arc pieces 42 of the movable spring 41, and the movable contact 47 on the movable spring 41 collides with the second fixed contact 46 and is conducted; when the coil 22 is powered off, the armature 33 is released by the iron core 23, the armature 33 acts to drive the push block 31 to move leftwards, the lug 32 moves leftwards and is away from the curved arc piece 42, and the movable contact 47 on the movable spring piece 41 is abutted against and conducted with the first fixed contact 45.

In this embodiment, the relay includes a housing 5, and the housing 5 is provided with a ventilation through hole 51. The shell 5 is used for preventing external dust or debris from entering the interior of the relay and protecting internal parts; when the relay works in a high-temperature environment or the temperature rises after a long working time, the air inside the relay is heated and expanded, and the air-permeable through hole 51 is used for exhausting the air inside the relay, so that the stability of the use performance of the relay is ensured.

In this embodiment, the curved arc piece 42 is formed by tearing and bending the automatic spring 41, and the curved arc area of the curved arc piece 42 is in a smooth arc shape. The lug 32 is conical, and the outer diameter of the free end of the lug 32 is smaller than that of the end, close to the push block 31, of the lug 32.

All the technical features in the embodiment can be freely combined according to actual needs.

The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.

Claims

1. The utility model provides a movable contact spring improvement formula relay, its includes the base, its characterized in that: still including setting up electromagnetic component on the base, setting up transmission assembly on the base and setting up the quiet spring subassembly on the base, transmission assembly sets up the ejector pad on the base and the lug that sets up with the ejector pad is integrative including the activity, quiet spring subassembly is including setting up the movable reed on the base, the movable reed is equipped with two curved arc pieces that are used for using with the lug cooperation, and the lug is used for the abrupt stretch into between two curved arc pieces, and the curved arc district of curved arc piece is used for the surface of conflict lug, and electromagnetic component via transmission assembly orders about the ejector pad and makes the movable reed remove.

2. The improved movable contact spring relay according to claim 1, wherein: the electromagnetic assembly comprises a coil frame arranged on the base, a coil sleeved outside the coil frame, an iron core penetrating the coil frame and two coil terminals inserted in the base, wherein the two coil terminals are electrically connected with two ends of the coil respectively.

3. The improved movable contact spring relay according to claim 2, wherein: the transmission assembly further comprises an armature movably arranged at one end of the base or/and the coil frame, the iron core is used for attracting the armature to enable the armature to move, and one end of the armature penetrates through one end, far away from the projection, of the push block.

4. The improved movable contact spring relay according to claim 1, wherein: the static and dynamic spring assembly further comprises a first static spring and a second static spring, and the first static spring and the second static spring are arranged on two sides of the dynamic spring respectively.

5. The improved movable contact spring relay according to claim 4, wherein: the static and dynamic spring assembly further comprises a first static contact, a second static contact and a dynamic contact, the first static contact and the second static contact are respectively arranged on the first static spring and the second static spring, and the dynamic contact is arranged on the dynamic spring.

6. The improved movable contact spring relay according to claim 5, wherein: and the first static reed, the second static reed and the movable reed are provided with two reed welding feet.

7. The improved movable contact spring relay according to claim 1, wherein: the movable reed improved relay comprises a shell, wherein the shell is provided with a ventilation through hole.

8. The improved movable contact spring relay according to claim 1, wherein: the automatic reed of the curved arc piece is formed by tearing and bending, and the curved arc area of the curved arc piece is in a smooth arc shape.

9. The improved movable contact spring relay according to claim 1, wherein: the convex block is in a conical shape, and the outer diameter of the free end of the convex block is smaller than that of one end, close to the push block, of the convex block.