CN214378232U

CN214378232U - Movable contact bridge holding structure of switch device

Info

Publication number: CN214378232U
Application number: CN202022829273.0U
Authority: CN
Inventors: 不公告发明人
Original assignee: Wuhan Tongli Tongwei Technology Co ltd
Current assignee: Wuhan Tongli Tongwei Technology Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-10-08
Anticipated expiration: 2030-11-30

Abstract

The utility model discloses a switching device's movable contact bridge retaining structure, it includes holder, roof, movable contact bridge and elastic component, wherein: the two deformation parts are integrally connected to two opposite sides of the contact part and are encircled to form a mounting opening, and the two deformation parts are also provided with positioning openings; the roof includes roof body and location boss, and the roof body has two opposite flank first sides, and two location bosses block respectively into in two location mouths, and the movable contact bridge sets up in the installing port and lies in between conflict portion and roof, and during a second side and roof butt, the movable contact bridge is spacing by the roof, and the elastic component setting is in the installing port, and one end and conflict portion butt, other end and a second side butt. The utility model discloses the holder is gone into to the roof card to fixed roof prevents that the movable contact bridge from breaking away from, need not to weld during the assembly, and the roof mounted position is dependent on the location mouth and is seted up the position, need not to carry out the accurate adjustment, and the assembly degree of difficulty that consequently significantly reduces the required precision to rigging equipment.

Description

Movable contact bridge holding structure of switch device

Technical Field

The utility model relates to a switching device technical field, specificly relate to a switching device's movable contact bridge retaining structure.

Background

At present, in a switching device such as an electromagnetic relay, a moving contact bridge generally needs to be kept in a whole with a driving rod of the electromagnetic device, so that the electromagnetic device can drive the moving contact bridge to achieve the function of closing and opening the switching device, and a keeping mechanism of the moving contact bridge is a key component of the switching device.

Chinese patent CN104221119B discloses a holding structure of a movable contact bridge, in which the movable contact bridge and an extrusion spring are held between a bottom plate of a holding part and an adjusting plate by resistance welding the adjusting plate and a side plate of the holding part together. Since the spring force is related to the installation position of the adjusting plate, the spring is pre-pressed during assembly, the spring force reaches a preset pressure, and then the adjusting plate is welded on the holding part, the assembly precision of the moving contact bridge holding structure on parts needs to depend on assembly manufacturing equipment, and higher challenge is needed for the manufacturing equipment.

Therefore, a moving contact bridge holding structure which is simple to assemble is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned technique not enough, provide switching device's movable contact bridge retaining structure for among the solution prior art switching device movable contact bridge retaining structure requires high problem to the rigging equipment.

In order to achieve the technical purpose, the technical proposal of the utility model is as follows: a movable contact bridge holding structure of a switching device, comprising a holder, a top plate, a movable contact bridge and an elastic member, wherein: the retainer comprises a contact part and two deformation parts, the two deformation parts are integrally connected to two opposite sides of the contact part and are encircled to form a mounting opening, the inner sides of the two deformation parts respectively form a contact surface, and the two deformation parts are also provided with positioning openings; the top plate comprises a top plate body and positioning bosses, two opposite sides of the top plate body respectively extend in the direction away from each other to form two positioning bosses, the two positioning bosses are respectively clamped in the two positioning ports to position the top plate, and the top plate seals one side of the positioning port away from the contact part; the movable contact bridge and the elastic piece are arranged in the mounting port, one end of the elastic piece is abutted to the abutting part, the other end of the elastic piece is abutted to the movable contact bridge, the movable contact bridge deviates from the elastic force of the abutting part, the movable contact bridge is limited by the top plate, and the movable contact bridge is prevented from being separated from the mounting port.

Preferably, the movable contact bridge holding structure of the switch device comprises a first positioning end, the first positioning end is arranged on one side, close to the abutting part, in the mounting opening, and the first positioning end is matched with the elastic piece to position the elastic piece and prevent the elastic piece from being separated from the mounting opening.

Preferably, one side of the movable contact bridge, which is far away from the top plate, forms a second positioning end, and the second positioning end is matched with the elastic piece to position the movable contact bridge and prevent the movable contact bridge from being separated from the mounting opening.

Preferably, the movable contact bridge holding structure of the switch device further comprises a fixed seat, the fixed seat is fixedly connected with the abutting portion, and one end of the fixed seat forms a first positioning end.

Preferably, the movable contact bridge holding structure of the switch device further comprises a driving rod, and the driving rod is fixedly connected with the fixed seat.

Preferably, the elastic member is a spring.

Preferably, the deformation portion still includes the stop tongue, and the stop tongue is formed at the deformation portion and contradicts with the location mouth, and before retainer and roof assembly, the stop tongue is to keeping away from the crooked of location mouth direction, and the perpendicular interval that keeps away from stop tongue one side of being close to location mouth one side to the location mouth of stop tongue is less than location boss thickness, and when retainer and roof assembly, the stop tongue is crooked to the roof and supports and press in the roof to inject the roof in the location mouth.

Preferably, the location boss forms riveting portion, and deformation portion has and supports the third side that the face opposite side set up, and riveting portion is located location boss corner, and location boss card goes into the location mouth, and supports the face and first side butt back, and riveting portion is to location mouthful outside bending deformation to restriction deformation portion breaks away from with the roof.

Compared with the prior art, the beneficial effects of the utility model include: the top plate is clamped into the retainer, so that the top plate is fixed, the movable contact bridge is prevented from being separated, welding is not needed during assembly, the mounting position of the top plate depends on the position of the positioning opening, and accurate adjustment is not needed, so that the assembly difficulty is greatly reduced, and the precision requirement on assembly equipment is reduced.

Drawings

Fig. 1 is a perspective view of an embodiment 1 of a movable contact bridge holding structure of a switching device provided by the present invention;

fig. 2 is an exploded view of embodiment 1 of a moving contact bridge holding structure of a switching device provided by the present invention;

fig. 3 is a top view of embodiment 1 of a moving contact bridge holding structure of a switching device provided by the present invention;

FIG. 4 is a cross-sectional view taken at A in FIG. 3;

fig. 5 is a perspective view of a moving contact bridge holding structure of a switching device according to an embodiment 1 of the present invention before assembling a holder;

fig. 6 is a front view of the moving contact bridge holding structure of the switching device of embodiment 1 before the holder is assembled;

fig. 7 is a perspective view of the holder of embodiment 1 of the moving contact bridge holding structure of the switching device according to the present invention after assembly;

fig. 8 is an assembled front view of the cage of embodiment 1 of the moving contact bridge holding structure of the switching device provided by the present invention;

fig. 9 is a perspective view of the top plate of embodiment 2 of the movable contact bridge of the switching device provided by the present invention;

reference numerals: 1-a retainer, 2-a top plate, 3-a movable contact bridge, 4-an elastic part, 5-a fixed seat, 6-a driving rod, 11-a collision part, 12-a deformation part, 13-a mounting port, 21-a top plate body, 22-a positioning boss, 31-a second side surface, 32-a second positioning end, 51-a first positioning end, 121-a stop surface, 122-a positioning port, 123-a stop tongue, 124-a third side surface, 211-a first side surface and 221-a riveting part.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1:

referring to fig. 1 and fig. 2, the present embodiment provides a moving contact bridge holding structure of a switch device, which includes a holder 1, a top plate 2, a moving contact bridge 3, and an elastic member 4, wherein:

holder 1 includes conflict portion 11 and deformation portion 12, and two deformation portion 12 an organic whole connect in the 11 double-phase offsides of conflict portion and enclose and form installing port 13, and in this embodiment, holder 1 roughly is the U-shaped, and two deformation portions 12 are close to the side each other and are formed resisting surface 121 respectively, and location mouth 122 has still been seted up to two deformation portions 12.

The top plate 2 comprises a top plate body 21 and positioning bosses 22, the top plate body 21 has two opposite side surfaces, namely a first side surface 211, the top plate body 21 extends along the direction that the two first side surfaces 211 are far away from each other to form two positioning bosses 22, the two positioning bosses 22 are respectively clamped into the two positioning holes 122, and the abutting surface 121 abuts against the first side surface 211 to fix the top plate 2, specifically, before assembly, the distance between the two positioning holes 122 of the top plate body 21 is larger than the maximum distance of the positioning bosses 22, the positioning holes 122 are aligned with the positioning bosses 22 during assembly, then external force is applied to deform the deformation part 12, the two positioning bosses 22 are respectively clamped into the positioning holes 122, and simultaneously the deformation part 12 abuts against the first side surface 211, so that the connection between the deformation part 12 and the top plate 2 is reliable, or the deformation part 12 has certain elasticity, during assembly, only the deformation part 12 needs to be pulled to both sides, so that the deformation part 12 bends and deforms towards both sides, simultaneously location mouthful 122 interval grow, can put into location mouthful 122 until roof 2, treat that roof 2 puts into location mouthful 122 after, remove external force deformation portion 12 and resume deformation, with roof 2 fixed, two kinds of assembly methods above are roughly the same, only require differently to the material performance of deformation portion 12, and the former needs deformation portion 12 utensil plasticity, and the latter needs deformation portion 12 utensil elasticity, carries out reasonable selection design because of according to the actual requirement in the actual production process. It should be noted that, the positioning boss 22 and the positioning hole 122 are matched with each other, so the cross-sectional shape should be similar or the same, it should be understood that the shape should not be limited, and may be round, square, etc., and in this embodiment, the shape is preferably rectangular, so that the positioning boss 22 can be matched with the positioning hole 122, and the positioning boss 22 is positioned, and the movement thereof is limited. In this embodiment, one side of the deformation portion 12 away from the abutting portion 11 is further bent outward, so that the deformation portion 12 is flush with one side of the positioning opening 122 away from the abutting portion 11, and therefore the positioning boss 22 abuts against the bent portion, thereby increasing the connection stability.

The movable contact bridge 3 is used for contacting and conducting two static contacts of the switch device, the movable contact bridge 3 is arranged in the mounting opening 13 and is positioned between the contact part 11 and the top plate 2, the movable contact bridge 3 is provided with a pair of opposite side second side surfaces 31, and when one second side surface 31 is abutted to the top plate 2, the movable contact bridge 3 is limited by the top plate 2 so as to prevent the movable contact bridge 3 from being separated from the mounting opening 13.

The elastic element 4 is disposed in the mounting opening 13, and one end of the elastic element abuts against the abutting portion 11, and the other end of the elastic element abuts against a second side surface 31, so as to provide elastic force for the movable contact bridge 3 to point to the top plate 2. Preferably, the elastic member 4 in this embodiment is a spring. The elastic piece 4 needs to be pre-pressed during assembly so that the movable contact bridge 3 and the top plate 2 can move to the designated positions, and after the assembly, the elastic piece 4 is in a compressed state, so that when the movable contact bridge holding structure of the switch device is not subjected to external force, the movable contact bridge 3 is pressed on the top plate 2 by the elastic piece 4.

Referring to fig. 3 and 4, as a preferred embodiment, the movable contact bridge holding structure of the switch device further includes a fixed seat 5, the fixed seat 5 is fixedly connected to the abutting portion 11, and one end of the fixed seat 5 forms a first positioning end 51. The first positioning end 51 is disposed at a side of the mounting opening 13 close to the abutting portion 11, and the first positioning end 51 is engaged with the elastic member 4 to position the elastic member 4, so as to prevent the elastic member 4 from being separated from the mounting opening 13.

Specifically, the first positioning end 51 is formed with a groove or a boss which is matched with the elastic element 4, and the fixing seat 5 mainly functions to position and fix the elastic element 4 and prevent the elastic element 4 from moving.

As a preferred embodiment, one side of the movable contact bridge 3 far away from the top plate 2 is formed with a second positioning end 32, and the second positioning end 32 is matched with the elastic piece 4 to position the movable contact bridge 3 to prevent the movable contact bridge 3 from being separated from the mounting opening 13 or from being deviated during the up-and-down movement of the movable contact bridge 3.

The second positioning end 32 has the same function as the first positioning end 51, and will not be described herein, so that the second positioning end 32 is also formed with a groove or a protrusion for cooperating with the elastic element 4.

As a preferred embodiment, the moving contact bridge holding structure of the switch device further comprises a driving rod 6, and the driving rod 6 is fixedly connected with the fixed seat 5.

Specifically, the magnetic force for controlling on-off of the switch device acts on the driving rod 6, so that the movable contact bridge holding structure of the switch device moves along the driving rod 6, the fixing seat 5 is used for connecting the driving rod 6 and the retainer 1 and keeping the driving rod 6 and the movable contact bridge 3 in a certain insulation state, the fixing seat 5 is made of plastics, the retainer 1 and the driving rod 6 need to be fixed during manufacturing, and then injection molding is carried out in a mold cavity, so that the retainer 1, the fixing seat 5 and the driving rod 6 are integrated during assembly.

Referring to fig. 5, 6, 7 and 8, as a preferred embodiment, the deformation portion 12 further includes a stop tongue 123, the stop tongue 123 is formed on the deformation portion 12 and abuts against the positioning opening 122, before the retainer 1 is assembled with the top plate 2, the stop tongue 123 is bent away from the positioning opening 122, a vertical distance from a side of the stop tongue 123 close to the positioning opening 122 to a side of the positioning opening 122 away from the stop tongue 123 is smaller than a thickness of the positioning boss 22, and when the retainer 1 is assembled with the top plate 2, the stop tongue 123 is bent toward the top plate 2 and abuts against the top plate 2 to limit the top plate 2 at the positioning opening 122. One end of the deformation part 12, which is far away from the collision part 11, is bent towards two sides, a stop tongue 123 is formed at the bent part, the stop tongue 123 is slightly bent towards the position far away from the positioning opening 122, the stop tongue 123 is bent during assembly, so that the top plate 2 is clamped in the positioning opening 122 and then clamped by the stop tongue 123, and the top plate 2 is tightly connected with the deformation part 12 and the bottom of the positioning opening 122.

The following is a detailed description of the assembly process of the movable contact bridge holding structure of the switching device provided by the present invention: firstly, the elastic piece 4 is pressed into the mounting opening 13, then the movable contact bridge 3 is installed, the top plate 2 is installed, and the positioning opening 122 is matched with the positioning boss 22 to fix the top plate 2, so that the assembly is completed, welding is not needed, the requirement is low, the assembly mode is simple, and the manufacturing cost is reduced.

Example 2:

referring to fig. 9, embodiment 2 is basically the same as embodiment 1, and will not be described herein again, except that:

the positioning boss 22 forms a riveting portion 221, the deformation portion 12 has a third side surface 124 opposite to the abutting surface 121, the riveting portion 221 is located at a corner of the positioning boss 22, the positioning boss 22 is clamped into the positioning opening 122, and after the abutting surface 121 abuts against the first side surface 31, the riveting portion 221 bends and deforms towards the outer side of the positioning opening 122 to limit the deformation portion 12 to be separated from the top plate 2.

The positioning boss 22 is provided with V-shaped grooves on both sides, the riveting portion 221 is located on one side of the V-shaped groove close to the corner, after the positioning boss 22 is clamped into the positioning opening 122 and the abutting surface 121 abuts against the first side surface 211, the riveting portion 221 is extruded to form a barb structure, and the top plate 2 can be effectively prevented from being separated from the deformation portion 12.

To sum up, the utility model provides a switching device's movable contact bridge retaining structure, the holder is gone into to the roof card to fixed roof prevents that the movable contact bridge from breaking away from, need not to weld during the assembly, and the roof mounted position is dependent on the location mouth to set up the position, need not to carry out the accurate adjustment, consequently the assembly degree of difficulty that significantly reduces the required precision to rigging equipment.

The above detailed description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A movable contact bridge holding structure of a switching device is characterized by comprising a holder, a top plate, a movable contact bridge and an elastic piece, wherein:

the retainer comprises a collision part and deformation parts, the two deformation parts are integrally connected to two opposite sides of the collision part and form an installation opening in a surrounding mode, the inner sides of the two deformation parts form stop surfaces respectively, and the two deformation parts are further provided with positioning openings;

the top plate comprises a top plate body and positioning bosses, two opposite sides of the top plate body respectively extend in the direction away from each other to form two positioning bosses, the two positioning bosses are respectively clamped in the two positioning ports to position the top plate, and the top plate seals one side of the positioning port away from the contact part;

the movable contact bridge and the elastic piece are arranged in the mounting opening, one end of the elastic piece is abutted to the abutting part, the other end of the elastic piece is abutted to the movable contact bridge, so that elastic force for the movable contact bridge to deviate from the abutting part is provided, and the movable contact bridge is limited by the top plate to prevent the movable contact bridge from being separated from the mounting opening.

2. A moving contact bridge holding structure of a switching device as claimed in claim 1, wherein said moving contact bridge holding structure of said switching device comprises a first positioning end, said first positioning end being disposed at a side of said fitting opening adjacent to said abutting portion, said first positioning end cooperating with said elastic member to position said elastic member to prevent said elastic member from being separated from said fitting opening.

3. A moving contact bridge holding structure of a switching device as claimed in claim 2, wherein a side of said moving contact bridge remote from said top plate is formed with a second positioning end, said second positioning end cooperating with said elastic member to position said moving contact bridge to prevent said moving contact bridge from being detached from said mounting opening.

4. The moving contact bridge holding structure of a switching device as claimed in claim 2, further comprising a fixing seat fixedly connected to the interference part, wherein one end of the fixing seat forms the first positioning end.

5. The moving contact bridge holding structure of a switching device as claimed in claim 4, further comprising a driving rod fixedly connected to the fixed seat.

6. A moving contact bridge holding structure of a switching device as claimed in claim 1, wherein said elastic member is a spring.

7. The movable contact bridge holding structure of a switch device according to claim 1, wherein the deformation portion further comprises a stop tongue formed on the deformation portion and abutting against the positioning opening, before the holder is assembled with the top plate, the stop tongue is bent in a direction away from the positioning opening, and a vertical distance from a side of the stop tongue close to the positioning opening to a side of the positioning opening away from the stop tongue is smaller than the thickness of the positioning boss, and when the holder is assembled with the top plate, the stop tongue is bent towards the top plate and abuts against the top plate to limit the top plate at the positioning opening.

8. The movable contact bridge holding structure of a switching device according to claim 1, wherein the positioning boss forms a riveting portion, the deformation portion has a third side surface disposed opposite to the abutting surface, the riveting portion is located at a corner of the positioning boss, the top plate body has a first side surface with two opposite side surfaces, the positioning boss is clamped into the positioning opening, and after the abutting surface abuts against the first side surface, the riveting portion bends and deforms outside the positioning opening to limit the deformation portion from being separated from the top plate.