CN112103141B - Reed, fixed contact, wiring assembly, rebound prevention assembly and magnetic latching relay - Google Patents

Abstract

The invention discloses a reed, a fixed contact, a wiring assembly, an anti-rebound assembly and a magnetic latching relay, wherein the conductive sectional area is ensured by combining a flow dividing sheet with the reed so as to achieve the flow dividing effect; when the contact is closed, the moving contact is contacted with the fixed contact to generate static pressure, and the moving contact and the fixed contact synchronously move under the elastic action of the reed and the flow dividing sheet so as to release the static pressure, ensure that arcing is not generated between the moving contact and the fixed contact, and prolong the service life.

Description

Reeds, static contacts, wiring components, anti-bounce components and magnetic latching relays

technical field

The invention relates to the technical field of circuit control, in particular to a reed, a static contact, a wiring assembly, an anti-bounce assembly and a magnetic latching relay.

Background technique

The magnetic latching relay is a new type of relay developed in recent years, and it is also an automatic switch. Like other electromagnetic relays, it can automatically connect and cut off the circuit. The difference is that the magnetic latching relay is a bistable relay that still maintains the state of the excitation after the excitation is removed.

The existing magnetic latching relay technology is to apply excitation through the coil, and the moving contact contacts the static contact to complete the circuit. When the static contact contacts the moving contact, the moving contact will bounce under the static pressure , The bouncing of the moving contact will produce arcing, which will burn the contacts on the moving contact and the static contact excessively, and the service life will be shortened. components and latching relays.

Contents of the invention

The invention solves the existing technical problems and provides a reed, a static contact, a wiring assembly, an anti-bounce assembly and a magnetic latching relay.

The technical scheme provided by the invention is as follows:

A reed, the reed is bent to form a first connection part and a second connection part, and the first connection part and the second connection part form a certain angle, and the free end of the second connection part is at a certain Movement within the travel range.

In this technical solution, the reed is bent to form a first connection part and a second connection part with a certain included angle. When the coil on the component is excited, the moving contact component moves rapidly under the drive of the drive component and contacts the static contact, at this time the reed deforms to release the static pressure on the moving contact, and the reed is limited at the same time A certain range of movement is formed, so as to ensure that the reed will not be excessively deformed, and at the same time it will not rebound excessively.

Preferably, the free end of the second connecting part extends to form a limiting part, and the limiting part moves within a certain range.

In this technical solution, the limiting part extended from the free end of the second connecting part, under the limiting action of the limiting cover described below, on the one hand, the excessive deformation of the reed can be prevented, and on the other hand, it can Prevent excessive rebound when the reed rebounds.

Preferably, the bent portion of the reed forms a third bent portion with a certain radian, and the width of the third bent portion is slightly smaller than the widths of the first connecting portion and the second connecting portion.

In this technical solution, when the static pressure is released, the arc-shaped third bending part facilitates the deformation of the second connecting part, and the width of the third bending part is slightly smaller than the width of the first connecting part and the width of the second connecting part , increasing the degree of deformation of the second connecting part to achieve the maximum release static pressure.

Preferably, several first mounting holes are opened on the first connecting part, and/or

A second mounting hole is opened on the second connecting portion.

A static contact, the above-mentioned reed, and a static contact, wherein a second boss is provided on the static contact for fixedly connecting the static contact with the reed.

In this technical solution, the static contact is riveted on the reed through the second boss to form a static contact, and the connection between the static contact and the moving contact acts as a communication line;

Preferably, a shunt piece is further included, the shunt piece is clamped between the static contact piece and the reed, and the shunt piece matches the shape of the reed piece.

In this technical solution, the shunt is combined with the reed to ensure the conductive cross-sectional area to achieve the function of shunting; when the contact is closed, the moving contact contacts the static contact to generate a static pressure, and the elasticity of the reed and the shunt Under the action, the moving contact and the static contact move synchronously to release the static pressure, ensure that there will be no arcing between the moving contact and the static contact, and increase the service life.

A wiring assembly includes the above-mentioned static contact and a wiring board, and the static contact is installed on the wiring board.

In this technical solution, the static contact is installed on the wiring board, and the wiring board is clamped on the base, which has a very good effect of conducting current.

Preferably, a shunt wire is also included, one end of the shunt wire is connected to the reed, and the other end of the shunt wire is connected to the wiring board.

Preferably, it also includes a connecting piece, the second connecting piece is connected to the second boss, and is used for connecting wires.

In this technical solution, the connecting piece is connected to the vertical plate through wires to realize a shunt effect, so as to ensure that a large current can pass through and increase the versatility of the modified relay.

An anti-bounce assembly, including the above-mentioned wiring assembly and a limit cover, the limit cover is installed on the base of the relay, and the limit cover is provided with a limiter for limiting the movement of the free end of the reed. bit hole.

In this technical solution, through the combination of the limit cover and the wiring assembly, when the coil is excited, the moving contact in the relay contacts the static contact to ensure that the two wiring boards on the base are connected. The contact and the static contact will move synchronously, so that the static contact moves in the limit hole to release the static pressure. At the same time, the limit hole will also limit the reed to prevent excessive deformation of the reed; When the coil excitation is lost, the static contact will move back with the moving contact. Under the action of the limit hole, the reed on the static contact cannot rebound excessively, which protects the reed and increases the service life. Well, it has the effect of anti-rebound.

A magnetic latching relay, including the above-mentioned anti-bounce assembly, and a drive assembly, a linkage assembly, and a moving contact assembly arranged on the base of the magnetic latching relay, and the linkage assembly is driven by the drive assembly to drive the moving contact The assembly slides to close the moving contact and the static contact in the moving contact assembly;

Wherein, the fixed contact in the wiring assembly is limited to move in the limit hole on the limit cover.

Compared with the prior art, the reed, static contact, wiring assembly, anti-bounce assembly and magnetic latching relay provided by the present invention have the following beneficial effects:

1. The reed is composed of reeds. The reeds are bent to form the first connection part and the second connection part with a certain angle. The first connection part and the second connection part form a certain angle. On the one hand, it is easy to install, on the other hand On the one hand, when the coil on the drive assembly is excited, the moving contact assembly moves rapidly under the drive of the drive assembly and contacts the static contact, at this time the reed begins to release the static pressure on the moving contact, and the spring The sheet is deformed to achieve the purpose of release, and the second connecting part extends along the direction of the second connecting part. The limiting part is under the limiting action of the outer cover. On the one hand, it can prevent the reed from excessive deformation, and on the other hand On the one hand, it can prevent the reed from rebounding excessively.

2. When the static pressure is released, the arc-shaped third bending part facilitates the deformation of the second connecting part, and at the same time, the width of the first bending part is slightly smaller than the width of the first connecting part and the width of the second connecting part, increasing the The degree of deformation of the second connection to achieve the maximum release static pressure.

3. The present invention ensures the conductive cross-sectional area through the combination of the shunt and the reed, so as to achieve the function of shunting; when the contact is closed, the contact between the moving contact and the static contact generates a static pressure, and the elastic action of the reed and the shunt Next, the moving contact and the static contact move synchronously to release the static pressure, to ensure that there will be no arcing between the moving contact and the static contact, and to increase the service life.

4. The present invention connects the connecting piece and the vertical plate through wires to realize the shunt effect, so as to ensure that a large current can pass through and increase the versatility of the modified relay.

Description of drawings

In the following, the preferred implementation mode will be described in a clear and understandable manner in conjunction with the accompanying drawings, and the above-mentioned characteristics, technical features, advantages and implementation methods of the reed, static contact, wiring assembly, anti-bounce assembly and magnetic latching relay will be further discussed. illustrate.

Fig. 1 is a schematic diagram of the reed structure of the present invention;

Fig. 2 is a schematic diagram of the structure of the static contact of the present invention;

Fig. 3 is a structural schematic diagram of another viewing angle of Fig. 2;

Fig. 4 is a schematic structural diagram of an embodiment of the wiring assembly of the present invention.

5 is a schematic structural view of another embodiment of the wiring assembly of the present invention;

Fig. 6 is a structural schematic view of the wiring assembly of the present invention installed on the relay;

Fig. 7 is a schematic structural diagram of a relay with a limit cover installed in the present invention.

Description of reference numerals: wiring board 100, welding part 101, mounting part 102, vertical plate 102a, horizontal plate 102b, first plug-in 103, second plug-in 104, first tapered end 105, second tapered end 106, second a raised portion 107, a second raised portion 108, a first bent portion 109, a second bent portion 110, an arc portion 111, and a first boss 112;

Static contact 200;

The shunt 201, the first conductive part 201-1, the second conductive part 201-2, the third conductive part 201-3, and the fourth conductive part 201-4;

Reed 202, first connecting portion 202-1, third bending portion 202-2, second connecting portion 202-3, limiting portion 202-4, first mounting hole 202-5, second mounting hole 202- 6;

The second boss 203, the static contact 204, the coupling piece 205;

Moving contact assembly 300;

Linkage component 400;

drive assembly 500;

Base 600;

Limiting cover 700, limiting hole 701.

Detailed ways

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings and obtain other implementations.

In order to keep the drawings concise, each drawing only schematically shows the parts related to the invention, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components having the same structure or function is schematically shown, or only one of them is marked. Herein, "a" not only means "only one", but also means "more than one".

According to an embodiment provided by the present invention, as shown in FIG. 1 , a reed includes: the reed 202 is made of beryllium bronze, and the reed 202 is bent to form a first connection part 202-1 and a second connection part 202 -3, and the first connecting part 202-1 and the second connecting part 202-3 form a certain angle, and the free end of the first connecting part 202-1 moves within a certain stroke range. The free end of the connecting part 202-3 extends to form a limiting part 202-4, and the limiting part 202-4 moves in the limiting hole 701 on the limiting cover 700 described below, and the limiting part 202-4 The limit hole 701 located on the limit cover 700 described below limits the movement of the reed 202 to prevent excessive deformation and excessive rebound of the reed 202 .

In order to ensure that the reed 202 can achieve a good anti-rebound effect, in another embodiment of the present invention, the curved part of the reed forms a third bending part 202-2 with a certain radian. , the widths of the entire first connecting portion 202-1, the third bending portion 202-2 and the second connecting portion 202-3 are the same, or the width of the third bending portion 202-2 is slightly smaller than that of the first connecting portion 202 -1 and the width of the second connecting portion 202-3, the latter is preferred in this embodiment, when the static pressure is released, the arc-shaped third bending portion 202-2 facilitates the deformation of the second connecting portion 202-3, At the same time, the width of the third bending part 202-2 is slightly smaller than the width of the first connecting part 202-1 and the width of the second connecting part 202-3, which increases the degree of deformation of the second connecting part 202-3 to achieve the maximum release static. combined pressure.

In another embodiment of the present invention, several first mounting holes 202-5 are opened on the first connecting part 202-1; -3 is provided with a second installation hole 202-6 for installing the static contact 204;

As shown in Figures 2 and 3, a static contact 200 includes the above-mentioned reed 202, and a static contact 204, on which a second boss 203 is opened, the second boss 203 passes through the second installation hole 202-6, and fixedly connects the static contact 204 with the reed 202 to realize the connection of current.

In another embodiment of the present invention, a shunt 201 is also included. The shunt 201 is made of red copper. The shunt 201 is sandwiched between the static contact piece and the reed 202. The shape of the shunt 201 is similar to that of the reed 202. Matching, the shunt 201 is sandwiched between the static contact 204 and the reed 202 to increase the conductive cross-sectional area. When the simple reed 202 is combined with the static contact 204, in order to ensure the conductive cross-sectional area, a slightly thicker reed is required 202, and the elasticity of the slightly thicker reed 202 will be reduced accordingly. Therefore, adding a shunt 201 is to ensure that the good elasticity can be maintained and the conductive cross-sectional area can be increased at the same time to ensure that a large current can pass; when installing , the shunt 201 is attached to the reed 202, and the two are completely matched.

In specific implementation, the shunt 201 includes a first conductive part 201-1, a second conductive part 201-2, a third conductive part 201-3 and a fourth conductive part 201-4, and the third bent part 202-2 The width of the first conductive part 201 - 1 , the third conductive part 201 - 3 and the fourth conductive part 201 - 4 are slightly smaller than the width of the second conductive part 201 - 2 .

As shown in FIG. 3 , a wiring assembly includes the above-mentioned static contact 200 and a wiring board, and the static contact 200 is installed on the wiring board.

In a specific implementation, the static contact 200 is installed on the horizontal plate 102b in the wiring board 100 through the first boss 112 on the wiring board 100, and the wiring board 100 also includes a welding part 101 and a mounting part 102, and The welding part 101 and the installation part 102 are in a vertical state, and the bending part of the welding part 101 and the installation part 102 forms an arc-shaped first bending part 109, wherein the installation part 102 is set in a vertical state by the vertical plate 102a and the horizontal plate 102b, and the vertical The connection between the plate 102 a and the horizontal plate 102 b forms a second bent portion 110 , and the fixed contact 200 is combined with the wiring board 100 to form a wiring assembly, which is snapped onto the base 600 .

As shown in FIG. 3 , for the convenience of the wiring assembly, a first insert 103 and a second insert 104 perpendicular to each other are also provided on the welding portion 101 , and a first cone is provided at the end of the first insert 103 away from the second insert 104 . shaped end 105, the end of the second insert 104 away from the first insert 103 is provided with a second tapered end 106, and at the same time, a first raised portion 107 and a second raised portion 108 are formed on the side wall of the welding portion 101, For welding external wires, two symmetrical arc-shaped parts 111 are provided on the welding part 101, which is not only good for mold forming, but also convenient for appearance.

In order to ensure that the relay can be applied to small currents and large currents, in another embodiment of the present invention, a shunt wire is also included, one end of the shunt wire is connected to the reed 202, and the other end of the shunt wire is connected to the reed 202. 202 on the side wall of the wiring board 100 opposite. In actual implementation, in order to ensure the versatility of the relay and prevent the static contact 200 from being burned by a large current, a wire is welded between the static contact 200 and the wiring board to ensure that a large current can pass through.

Exemplarily, a connecting piece 205 is also included, and the connecting piece 205 is connected to the second boss 203 for connecting one end of the wire.

In a specific application, the formed wiring assembly is installed on the base 600, and the driving assembly 500 drives the linkage assembly 400 to move, thereby driving the moving contact assembly 300 to slide on the base 600 to realize the moving contact and static contact. First 200 contacts.

As shown in Figure 6, an anti-bounce assembly includes the above-mentioned wiring assembly and a limit cover 700, the limit cover 700 is installed on the base 600 of the relay, and a limit spring is provided on the limit cover 700 The limit hole 701 for the movement of the free end of the sheet.

As shown in Figures 5 and 6, a magnetic latching relay includes the above-mentioned anti-bounce assembly, and a drive assembly 500, a linkage assembly 400, and a moving contact assembly 300 arranged on a magnetic latching relay base 600, The linkage assembly 400 is driven by the driving assembly 500 to drive the moving contact assembly 300 to slide, so that the moving contact in the moving contact assembly 300 and the static contact 200 are closed; wherein, the static contact 200 in the wiring assembly is limited to a limit Movement in the limit hole on the cover.

It should be noted that the above embodiments can be freely combined as required. The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (8)

1. An anti-rebound assembly, characterized by:

the magnetic latching relay comprises a wiring assembly and a limiting cover, wherein the limiting cover is arranged on a base of the magnetic latching relay, and a limiting hole for limiting the free end of the reed to move is formed in the limiting cover;

the wiring assembly comprises a fixed contact and a wiring board, and the fixed contact is arranged on the wiring board;

the fixed contact comprises a reed and a fixed contact, a second boss is arranged on the fixed contact, and the second boss is used for fixedly connecting the fixed contact with the reed;

the reed is bent to form a first connecting part and a second connecting part, and the first connecting part and the second connecting part form a certain included angle;

the rebound prevention assembly is used for a magnetic latching relay; the limit cover is suitable for being mounted on the base of the magnetic latching relay;

the free end of the second connecting part moves in a certain travel range; and the limit cover prevents the reed from excessively deforming and excessively rebounding in the closing process of the movable contact assembly and the fixed contact of the magnetic latching relay by limiting the movement of the free end.

2. The anti-rebound assembly of claim 1 wherein the free end of the second connecting portion extends to form a limit stop and the limit stop is positioned for movement within a range.

3. The anti-rebound assembly of claim 1 wherein: the bent part of the reed forms a third bending part with a certain radian, and the width of the third bending part is slightly smaller than the widths of the first connecting part and the second connecting part.

4. The anti-rebound assembly of claim 1 wherein: a plurality of first mounting holes are formed in the first connecting part;

and/or

And a second mounting hole is formed in the second connecting part.

5. The anti-rebound assembly of any one of claims 1 to 4 wherein: the device also comprises a splitter plate, wherein the splitter plate is clamped between the fixed contact and the reed, and the splitter plate is matched with the shape of the reed.

6. The anti-rebound assembly of claim 5 wherein; the novel electric wire is characterized by further comprising a shunt wire, one end of the shunt wire is connected to the reed, and the other end of the shunt wire is connected to the wiring board.

7. The anti-rebound assembly as set forth in claim 6 wherein: the connecting piece is connected to the second boss and is used for connecting the lead.

8. A magnetic latching relay, characterized by: a rebound prevention assembly as claimed in any one of claims 1 to 7, and a driving assembly, a linkage assembly and a moving contact assembly which are arranged on the base of the magnetic latching relay, wherein the driving assembly drives the linkage assembly to drive the moving contact assembly to slide so as to close the moving contact and the fixed contact in the moving contact assembly;

wherein, the stationary contact in the wiring assembly is limited in the limiting hole of limiting cover and moves.

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