Moving contact assembly structure with high stability

Abstract

A moving contact assembly structure with high stability comprises a frame and a moving contact assembly. The frame comprises a frame body, a movable contact spring socket, a torsional spring groove, a partition plate, a rotating shaft, an iron block groove, a jack and a connecting end. The moving contact assembly comprises a moving reed, a moving contact, a torsion spring, an iron block and a cylinder. The movable contact spring is provided with an arc-shaped groove, and the movable contact spring rotates with the cylinder as the center. The iron block grooves are formed in the frame body, and the iron blocks with different thicknesses are arranged in the iron block grooves according to actual requirements. And the movable contact spring is clamped between the iron block and the cylinder. The movable contact spring is provided with the arc-shaped groove, the arc-shaped groove is matched with the cylinder, so that the movable contact spring can rotate along the cylinder, the cylinder is embedded in the arc-shaped groove, the movable contact spring can be prevented from moving along the length direction of the cylinder, the step of punching on the movable contact spring is omitted, the process is simplified, and the production efficiency is improved. The production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to relay parts technical field, especially a movable contact assembly structure with high stability. BACKGROUND

[0002] The relay is a kind of circuit switch and the device with protective property, it is used to establish an interactive relationship between control system and controlled system, usually applied in the control circuit of automation, plays the role of automatic regulation, safety protection, conversion circuit etc.In the existing magnetic latching relay, in order to make movable spring sheet can rotate, further and static spring sheet contact. Need to set up an installation hole on movable spring sheet, then use a cylinder or pivot etc.Component passes through the through hole, to make movable spring sheet can rotate with the cylinder or pivot.But the movable spring sheet for the existing relay is often sheet, this is to reduce the volume of relay.And the difficulty needed in processing installation hole on sheet is greater, and setting installation hole also can further reduce the thickness of movable spring sheet, makes it easy to break in the use process, reduces service life.And in the processing process, it is easy to produce defective products.Or set an arch bridge structure on movable spring sheet, one end of movable spring sheet is fixed in base, and the other end is actuated to make movable contact and static contact, but in order to elastic deformation, it needs to use thin plate, and it is easy to produce metal fatigue and break.

[0003] In the relay movable spring sheet structure and relay disclosed in application No. CN202320673580.5, the current-carrying spring sheet assembly is provided; the movable contact is arranged on one side of the current-carrying spring sheet assembly; the elastic sheet is installed on the other side of the current-carrying spring sheet assembly, and the elastic sheet comprises an installation sheet body and an elastic sheet body.

[0004] The first end of the installation sheet body is connected with the current-carrying spring sheet assembly through the movable contact, the second end of the installation sheet body is pressed against the surface of the current-carrying spring sheet assembly, and the first end of the elastic sheet body is connected at an angle with the second end of the installation sheet body. The elastic sheet satisfies the requirement of suppressing the bounce of the movable contact, reduces the material requirement of the current-carrying spring sheet assembly on the spring sheet itself, and only needs to be riveted once, so that the elastic sheet, the current-carrying spring sheet assembly and the movable contact can be assembled together, which not only reduces the assembly process, but also reduces the damage to the surface of the current-carrying spring sheet assembly, shortens the assembly time of the relay movable spring sheet structure, and is helpful to the batch production of the relay.

[0005] The above scheme suppresses the bounce of the movable contact, reduces the material requirement of the current-carrying spring sheet assembly on the spring sheet itself, and improves the stability of the movable spring sheet, but the arch bridge structure is still used, so there is room for improvement. UTILITY MODEL CONTENTS

[0006] Therefore, the utility model provides a movable contact assembly structure with high stability to solve the above technical problems.

[0007] A movable contact assembly with high stability, comprising a frame and a movable contact component arranged in the frame. The frame comprises a frame body, two movable spring blade sockets arranged at one end of the frame body, a torsion spring slot arranged at a side of the frame body away from the movable spring blade sockets, a partition plate arranged on the central axis of the frame body in the length direction, two torsion spring rotating shafts accommodated in the torsion spring slot and arranged on the end faces of the partition plate, two iron block slots arranged at the frame body close to the movable spring blade sockets, a socket arranged on the end face of the frame body at the side of the movable spring blade sockets, and a connecting end arranged at the end of the frame body away from the movable spring blade sockets. The movable contact component comprises two movable spring blades inserted into the movable spring blade sockets, two movable contact points arranged at one end of the two movable spring blades respectively, two torsion springs sleeved on the torsion spring rotating shafts respectively, two iron blocks embedded in the iron block slots respectively, and a cylinder inserted into the socket, wherein the movable spring blades are provided with an arc-shaped slot at the central point in the length direction, the concave surface of the arc-shaped slot is arranged towards the direction of the movable contact points, the cylinder is embedded in the arc-shaped slot, and the movable spring blades rotate around the cylinder as the center.

[0008] Further, the inner side wall of the torsion spring slot is in the shape of a circular arc.

[0009] Further, the central axes of the two rotating shafts coincide with each other.

[0010] Further, a top hole is further arranged in the iron block slot.

[0011] Further, when the movable spring blade is inserted into the movable spring blade socket, the thickness of the movable spring blade is smaller than the opening width of the movable spring blade socket.

[0012] Further, the other end of the movable spring blade is arranged to be bent away from the direction of the movable contact points.

[0013] Further, when the cylinder is inserted into the socket, a gap is reserved between the cylinder and the iron block.

[0014] Compared with the prior art, the movable contact assembly structure with high stability provided by the utility model has the iron block groove arranged on the frame main body, the iron block with different thicknesses is arranged in the iron block groove according to actual requirements, one cylinder is inserted on the frame main body, the movable spring sheet is clamped between the iron block and the cylinder, the arc-shaped groove is arranged on the movable spring sheet, the movable spring sheet can rotate along the cylinder through the cooperation of the arc-shaped groove and the cylinder, the cylinder is also embedded in the arc-shaped groove to prevent the movable spring sheet from moving along the length direction, the punching step on the movable spring sheet is avoided, the process is simplified, the service life is improved, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The structure schematic view of the movable contact assembly structure with high stability provided by the utility model.

[0016] Figure 2 The exploded structure schematic view of the movable contact assembly structure with high stability. Figure 1

[0017] The structure schematic view of the frame of the movable contact assembly structure with high stability. Figure 3 Figure 1 The structure schematic view of one angle of the movable contact assembly structure with high stability.

[0018] Figure 4 Figure 1 The structure schematic view of another angle of the movable contact assembly structure with high stability.

[0019] Figure 5 The structure schematic view of another angle of the movable contact assembly structure with high stability. Figure 1 DETAILED DESCRIPTION

[0020] The specific embodiments of the utility model are further explained below. It should be understood that the explanation of the utility model embodiments herein is not used to limit the protection scope of the utility model.

[0021] As shown in the structure schematic view of the movable contact assembly structure with high stability provided by the utility model. The movable contact assembly structure with high stability includes a frame 10 and a pair of movable contact assemblies 20 arranged in the frame 10. It is conceivable that the movable contact assembly structure with high stability also includes other functional structures, such as connecting wires, assembly components and the like, which are known to those skilled in the art, and will not be described here. Figures 1 to 5

[0022] ​​​​The frame 10 comprises a frame body 11, two movable spring blade sockets 12 arranged at one end of the frame body 11, a torsion spring slot 13 arranged at a side of the frame body 11 away from the movable spring blade sockets 12, a partition plate 14 arranged on a central axis of the frame body 11 in a length direction, two rotating shafts 15 accommodated in the torsion spring slot 13 and arranged on two side end faces of the partition plate 14, two iron block slots 16 arranged at the frame body 11 close to the movable spring blade sockets 12, a socket 17 arranged on an end face of the frame body 11 at the side of the movable spring blade sockets 12, and a connecting end 19 arranged at an end of the frame body 11 away from the movable spring blade sockets 12.

[0023] The frame body 11 is arranged rotatably in a relay base (not shown in the figure). The two movable spring blade sockets 12 are arranged at the end of the frame body 11 and are arranged respectively at the two sides of the partition plate 14, so as to separate the two movable contact assemblies 20 and electrically isolate the two movable contact assemblies 20, thereby enhancing the electrical reliability.

[0024] The inner side wall of the torsion spring slot 13 is in a circular arc shape, which can better accommodate a torsion spring or a spring and the like.

[0025] The two rotating shafts 15 are arranged correspondingly on the two side end faces of the partition plate 14, that is, the central axes of the two rotating shafts 15 coincide with each other. The rotating shafts 15 are used for sleeving a torsion spring or an elastic member such as a spring, and the rotating shafts 15 on the two sides can be respectively inserted between a relay base (not shown in the figure) and a top cover (not shown in the figure), so as to fix the frame 10 to a relay shell.

[0026] The side wall of the iron block slot 16 is further provided with a top abutting hole 18. The top abutting hole 18 is used for toppling out the iron block 24 in the iron block slot 16 through the top abutting hole 18 when the iron block 24 is assembled improperly, such as deflection, so as to reassemble. The iron block slot 16 and the socket 17 are used in cooperation with the movable contact assembly 20, which will be described below in combination with the movable contact assembly 20.

[0027] The connecting end 19 is provided with a through hole, so that it can be connected with a magnetic steel assembly (not shown) through a connecting member (not shown), so as to pull the frame 10 through the magnetic steel assembly (not shown) to reciprocate around the rotation shaft 15 as the axis. The connecting member is a prior art, such as a U-shaped metal member, and the magnetic steel assembly is a commonly used device for a relay, so it will not be described here. When the frame 10 rotates around the rotation shaft 15, it can drive the following moving contact 22 to swing, thereby achieving the effect of on-off with the fixed stationary contact. The moving contact assembly 20 includes two moving contact springs 21 inserted into the moving spring insertion port 12, two moving contacts 22 respectively provided on one end of the two moving contact springs 21, two torsion springs 23 respectively sleeved on the rotation shaft 15, two iron blocks 24 respectively embedded in the iron block groove 16, and a cylindrical 25 inserted into the insertion hole 17.

[0028] When the moving contact spring 21 is inserted into the moving spring insertion port 12, the thickness of the moving contact spring 21 is less than the opening width of the moving spring insertion port 12, so that one end of the moving contact spring 21 can swing in the moving spring insertion port 12.

[0029] The other end of the moving contact spring 21 is bent away from the moving contact 22, which is a wiring end. The bending arrangement can increase the space utilization of the relay housing and facilitate wiring. The center point of the moving contact spring 21 along its length direction is provided with an arc-shaped groove 26, and the concave surface of the arc-shaped groove 26 is arranged towards the direction of the moving contact 22. The two moving contacts 22 are used to contact the stationary contact (not shown), which is a commonly used contact method for relays, so it will not be described here.

[0030] One end of each of the two torsion springs 23 abuts against one end of the moving contact spring 21 away from the moving contact 22, so as to apply a pushing force to one end of the moving contact spring 21 to rotate the moving contact spring 21 around the cylindrical 25, and the other end of the moving contact spring 21 provided with the moving contact 22 is arranged on the side of the moving spring insertion port 12 close to the abutting hole 18, thereby fixing the relative position between the moving contact spring 21 and the moving spring insertion port 12, and ensuring that the moving contact 22 can be in close contact with the stationary contact (not shown) to avoid loose contact.

[0031] The iron block 24 is embedded in the iron block groove 16, and the thickness of the iron block 24 can be designed according to actual needs. When the cylinder 25 is inserted into the insertion hole 17, a gap is reserved between the cylinder 25 and the iron block 24. The part of the arc-shaped groove 26 of the moving spring piece 21 is embedded between the cylinder 25 and the iron block 24. The concave surface of the arc-shaped groove 26 is arranged towards the cylinder 25, at this time a part of the cylinder 25 can be just embedded in the arc-shaped groove 26 as the center axis when the moving spring piece 21 swings, so that the moving spring piece 21 can swing along the cylinder 25. And the iron block 24 is just located at the convex end surface of the arc-shaped groove 26, cooperates with the cylinder 25 to clamp the arc-shaped groove 26 between the iron block 24 and the cylinder 25, limits the moving spring piece 21 to move along its own length direction, and can only reciprocating swing with the cylinder 25 as the center axis. It is conceived that when the cylinder 25 is inserted in the insertion hole 17, the partition plate 14 should be slotted at the position corresponding to the cylinder 25 to avoid, so as to ensure that the cylinder 25 can pass through the partition plate 14.

[0032] In assembly, first, the iron block 24 is embedded in the iron block groove 16, then the moving spring piece 21 and the moving contact 22 are assembled and inserted from the moving spring piece insertion hole 12, so that one end of the arc-shaped groove 26 abuts against the iron block 24. Then the cylinder 25 is inserted from the insertion hole 17, and the moving spring piece 21 is fixed by passing through the arc-shaped groove 26. Finally, the torsion spring 23 is sleeved on the torsion spring rotating shaft 15 at both ends, so that one end of the torsion spring 23 abuts against the moving spring piece 21, and the assembly is completed.

[0033] In use, the moving contact is needed to be installed into a relay. A connecting piece is connected between the connecting end 19 and a magnetic steel assembly (not shown in the figure), the magnetic steel assembly interacts with an electromagnetic coil (not shown in the figure) to rotate, pulls the frame 10 connected with the magnetic steel assembly to reciprocating swing with the rotating shaft 15 as the axis, so as to control the opening and closing of the moving contact 22 and the static contact.

[0034] Compared with the prior art, the movable contact assembly structure with high stability provided by the utility model has the advantages that the iron block groove 16 is arranged on the frame body 11, the iron block 24 with different thicknesses is arranged in the iron block groove 16 according to actual requirements, one cylinder 25 is inserted on the frame body 11, the movable spring piece 21 is clamped between the iron block 24 and the cylinder 25, an arc-shaped groove 26 is arranged on the movable spring piece 21, the movable spring piece 21 can rotate along the cylinder 25 through the cooperation of the arc-shaped groove 26 and the cylinder 25, the cylinder 25 is embedded in the arc-shaped groove 26, the movable spring piece 21 can also be prevented from moving along the length direction, the step of punching holes on the movable spring piece 21 is avoided, the process is simplified, the service life is improved, and the production efficiency is improved.

[0035] The above is only the preferred embodiment of the utility model, and is not used for limiting the protection scope of the utility model, and any modification, equivalent replacement or improvement within the utility model spirit covers the claim scope of the utility model.

Claims

1. A moving contact assembly structure with high stability, characterized in that: The highly stable moving contact assembly structure includes a frame and a moving contact assembly disposed within the frame. The frame includes a frame body, two moving spring inserts disposed at one end of the frame body, a torsion spring groove disposed on the side of the frame body away from the moving spring inserts, a partition disposed on the central axis of the frame body along its length, two torsion spring shafts accommodated in the torsion spring grooves and disposed on the end faces of the partition, two iron block grooves disposed on the frame body near the moving spring inserts, and a plug disposed on the end face of the frame body located on the side of the moving spring inserts. The moving contact assembly includes a hole and a connecting end disposed on the end of the frame body away from the moving spring socket. The moving contact assembly includes two moving springs inserted into the moving spring socket, two moving contacts respectively disposed on one end of the two moving springs, two torsion springs respectively sleeved on the torsion spring shaft, two iron blocks respectively embedded in the iron block groove, and a cylinder inserted into the socket. The moving spring has an arc-shaped groove at its center point along its length direction. The concave surface of the arc-shaped groove is oriented towards the moving contact. The cylinder is embedded in the arc-shaped groove, and the moving spring rotates around the cylinder.

2. The highly stable moving contact assembly structure as described in claim 1, characterized in that: The inner wall of the torsion spring groove is arc-shaped.

3. The highly stable moving contact assembly structure as described in claim 1, characterized in that: The central axes of the two rotating shafts coincide with each other.

4. The highly stable moving contact assembly structure as described in claim 1, characterized in that: The iron block groove is also provided with a top hole.

5. The highly stable moving contact assembly structure as described in claim 1, characterized in that: When the movable spring is inserted into the movable spring socket, the thickness of the movable spring is less than the opening width of the movable spring socket.

6. The highly stable moving contact assembly structure as described in claim 1, characterized in that: The other end of the moving spring is bent away from the moving contact.

7. The highly stable moving contact assembly structure as described in claim 1, characterized in that: When the cylinder is inserted into the socket, a gap is maintained between the cylinder and the iron block.

Images