阅读说明：本技术 双稳态开关装置 (Bistable switching device ) 是由 杨斌堂 于 2021-01-19 设计创作，主要内容包括：本发明提供了一种双稳态开关装置,包括第一磁体、静触头、动触头、开关壳体以及第一电磁线圈,所述第一磁体、静触头、动触头、第一电磁线圈均安装在所述开关壳体上；当对第一电磁线圈通入正向电流或负向电流时,所述第一磁体能够驱使动触头在第一位置和第二位置之间运动且当第一电磁线圈断电后由于弹性体组件和/或铁磁组件所述动触头能够停止在第一位置或第二位置；其中,在第一位置、第二位置时,动触头与静触头分别为接触、不接触,本发明通过电磁线圈通电后的磁力作为开关切换的驱动力且通过设置弹性体组件和/或铁磁组件能够使动触头稳定停止在第一位置或第二位置,实现双稳定状态的开关结构,且部件少,结构简单,易于实现。(The invention provides a bistable switch device which comprises a first magnet, a fixed contact, a movable contact, a switch shell and a first electromagnetic coil, wherein the first magnet, the fixed contact, the movable contact and the first electromagnetic coil are all arranged on the switch shell; when positive current or negative current is applied to the first electromagnetic coil, the first magnet can drive the moving contact to move between a first position and a second position, and the moving contact can stop at the first position or the second position due to the elastic body component and/or the ferromagnetic component after the first electromagnetic coil is powered off; the invention can make the moving contact stably stop at the first position or the second position by taking the magnetic force generated after the electromagnetic coil is electrified as the driving force for switching the switch and arranging the elastomer component and/or the ferromagnetic component, thereby realizing the switch structure in a bistable state.)

1. A bistable switch device is characterized by comprising a first magnet (1), a fixed contact (2), a movable contact (3), a switch shell (4) and a first electromagnetic coil (5);

the first magnet (1), the static contact (2), the movable contact (3) and the first electromagnetic coil (5) are all arranged on the switch shell (4);

when positive current or negative current is applied to the first electromagnetic coil (5), the first magnet (1) can drive the movable contact (3) to move between a first position and a second position, and when the first electromagnetic coil (5) is powered off, the movable contact (3) can stop at the first position or the second position due to an elastomer component arranged on the switch shell (4) and/or due to a ferromagnetic component arranged on the switch shell (4);

when the moving contact (3) is at the first position, the moving contact (3) is in contact with the static contact (2), and when the moving contact (3) is at the second position, the moving contact (3) is not in contact with the static contact (2).

2. The bistable switching device according to claim 1, wherein the elastomer assembly comprises a first elastomer (6), a first support (7) and a second support (8), wherein the two ends of the first elastomer (6) are respectively connected with the first support (7) and the second support (8);

when the moving contact (3) is at a first position, a first convex surface is formed at the middle part of the first elastic body (6) facing one surface of the static contact (2) and an elastic support is formed on the moving contact (3) in the direction of the convex first convex surface;

when the moving contact (3) is at the second position, a second convex surface is formed on one surface of the first elastic body (6) back to the fixed contact (2) and elastic support is formed on the moving contact (3) in the direction of the second convex surface.

3. The bistable switching device according to claim 2, further comprising a yoke structure (9), wherein said yoke structure (9) is arranged along a circumferential direction of said first magnet (1) and said first electromagnetic coil (5) is mounted on said yoke structure (9), wherein said first support member (7) is mounted on said yoke structure (9) or said switch housing (4), and said second support member (8) is mounted on said yoke structure (9) or said switch housing (4).

4. Bistable switching device according to claim 3, characterized in that said yoke structure (9) is provided with a second electromagnetic coil (10) along the circumferential direction.

5. Bistable switching device according to claim 3, characterized in that a second elastic body (11) is arranged between the first magnet (1) and the switch housing (4) in the direction of movement of the first magnet (1).

6. Bistable switching device according to claim 1, characterized in that said first magnet (1) is a plurality of permanent magnets arranged at intervals in succession along the direction of movement of said first magnet (1).

7. The bistable switching device according to claim 1, wherein said ferromagnetic assembly comprises a first magnetic body (12), said first magnetic body (12) being arranged along the circumference of said first magnet (1) or being arranged offset from the axial direction of said first magnet (1).

8. Bistable switching device according to claim 7, characterized in that said ferromagnetic assembly further comprises a second ferromagnetic member (14), said first magnetic body (12) being magnetically attracted to said second ferromagnetic member (14) when said movable contact (3) is in the first position or in the second position.

9. Bistable switching device according to claim 1, characterized in that said first electromagnetic coil (5) is arranged along the circumference of said first magnet (1), or

A first accommodating space is arranged in the first magnet (1), and the first electromagnetic coil (5) is arranged in the first accommodating space.

10. Bistable switching device according to claim 1, characterized in that said movable contact (3) is mounted inside or outside a yoke structure (9) provided inside said switch casing (4).

Technical Field

The invention relates to the technical field of switches, in particular to a bistable switch device.

Background

A switch is an electronic component that can open a circuit, interrupt current, or cause current to flow to other circuits. The most common switches are electromechanical devices that are human-operated, wherein the "closing" (closed) of a contact indicates that the electronic contact is conductive, allowing current to flow; an "open" of the switch indicates that the electrical contact is non-conductive, creating an open circuit, not allowing current to flow.

Most of switches used in the current market adopt manually operated buttons to realize switch operation, have low operation efficiency and are not suitable for increasingly advanced automatic production. In addition, the switch controlled by a signal on the market often has the defects that the repeated use is easy to cause part fatigue and easy to damage, most products have complex structures, and the switch cannot be stabilized in a certain state when being opened and closed, so that the normal use is influenced.

For example, patent document CN206370362U discloses a design of a plug-in switch, which includes 1 plug-in switch seat and 1 plug pin, and the plug-in switch seat includes 1 base (1), 1 pressing ring (3) and 4 copper metal sheets (2). Any two of 4 copper metal sheets on the plug switch seat form 1 switch, and can form 2 switches, and the 2 switches are mutually backup. When the plug pin is inserted into the plugging switch seat hole, the switch is conducted; when the plug pin is pulled out of the plug switch base, the switch is switched off, but the design is more original, manual operation is needed, and the switch operation efficiency is low.

For another example, patent document CN206076077U discloses a transmission mechanism of an automatic transfer switch, which includes a mounting bracket and a crank link mechanism, where the crank link mechanism includes a crank, a crank rotating shaft and a connecting rod, the crank rotating shaft is mounted on the mounting bracket, the crank is sleeved on the crank rotating shaft and can rotate around the crank rotating shaft, one end of the crank is hinged to one end of the connecting rod, and a transmission shaft mechanically coupled to a moving contact of the automatic transfer switch is vertically mounted on the crank; the crank is composed of two parallel rotating sheets which are sleeved on the crank rotating shaft and can rotate around the crank rotating shaft, the two rotating sheets are fixedly connected, a gasket is sleeved on the crank rotating shaft between the two rotating sheets, and limiting sleeves used for limiting the crank to axially move on the crank rotating shaft are respectively arranged on two sides of the crank on the crank rotating shaft.

Disclosure of Invention

In view of the drawbacks of the prior art, it is an object of the present invention to provide a bistable switching device.

The bistable switch device provided by the invention comprises a first magnet, a fixed contact, a movable contact, a switch shell and a first electromagnetic coil;

the first magnet, the fixed contact, the moving contact and the first electromagnetic coil are all arranged on the switch shell;

when positive current or negative current is applied to the first electromagnetic coil, the first magnet can drive the moving contact to move between a first position and a second position, and the moving contact can stop at the first position or the second position due to an elastic body component and/or a ferromagnetic component on the switch shell after the first electromagnetic coil is powered off;

when the moving contact is at the first position, the moving contact is in contact with the fixed contact, and when the moving contact is at the second position, the moving contact is not in contact with the fixed contact.

Preferably, the elastic body assembly comprises a first elastic body, a first supporting part and a second supporting part, wherein two ends of the first elastic body are respectively connected with the first supporting part and the second supporting part;

when the moving contact is at a first position, a first convex surface is formed on one surface, facing the fixed contact, of the middle part of the first elastic body, and elastic support is formed on the moving contact in the direction of the protrusion of the first convex surface;

when the moving contact is at the second position, a second convex surface is formed on one surface of the first elastic body, which is opposite to the fixed contact, and elastic support is formed on the moving contact in the direction of the protrusion of the second convex surface.

Preferably, the switch further includes a yoke structure disposed along a circumferential direction of the first magnet and on which the first electromagnetic coil is mounted, wherein the first support member is mounted on the yoke structure or the switch case, and the second support member is mounted on the yoke structure or the switch case.

Preferably, the yoke structure is provided with a second electromagnetic coil in the circumferential direction.

Preferably, a second elastic body is disposed between the first magnet and the switch housing in the moving direction of the first magnet.

Preferably, the first magnet is a plurality of permanent magnets arranged at intervals in sequence along the moving direction of the first magnet.

Preferably, the ferromagnetic assembly includes a first magnetic body arranged along a circumferential direction of the first magnet or arranged offset from an axial center direction of the first magnet.

Preferably, the ferromagnetic assembly further comprises a second ferromagnetic member, the first magnetic member being magnetically attracted to the second ferromagnetic member when the movable contact is in the first position or the second position.

Preferably, the first electromagnetic coil is arranged along a circumferential direction of the first magnet, or

The first magnet is provided with a first accommodating space therein, and the first electromagnetic coil is disposed in the first accommodating space.

Preferably, the movable contact is mounted inside or outside a yoke structural member provided inside the switch housing.

Compared with the prior art, the invention has the following beneficial effects:

1. the electromagnetic coil is arranged to generate a magnetic field so as to generate a driving force for driving the first magnet to move between the first position and the second position, the elastic body component and/or the ferromagnetic component are arranged to enable the movable contact to be stably stopped at the first position or the second position so as to realize that the switch device is stably in a connected state or a disconnected state, the switch structure in a bistable state is realized, and the electromagnetic coil is few in components, simple in structure and easy to realize.

2. The invention can adopt the ferromagnetic component to realize the bistable switching effect, can be repeatedly switched without the limitation of switching times, can not cause the failure of the switch due to the fatigue of components, and prolongs the service life of the equipment.

3. One end or two ends of the first magnet are respectively provided with the elastic buffer parts, so that on one hand, the elastic buffer exists when the movable contact is contacted with the static contact, the impact force is reduced, on the other hand, the movement stroke of the movable contact is designed to be in contact with the static contact within a range, the processing precision of a product is reduced, and the manufacturing cost of the product is reduced.

4. The invention can realize the bistable effect of the switch through various structures, can be suitable for various occasions, and increases the practicability of the equipment.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of a moving contact and a fixed contact in embodiment 2 when they are in contact;

fig. 2 is a schematic structural view of a moving contact and a stationary contact in embodiment 2 when they are not in contact with each other;

fig. 3 is a schematic structural view of a movable contact and a fixed contact in embodiment 3 when they are in contact;

fig. 4 is a schematic structural view of a moving contact and a fixed contact in embodiment 3 when they are not in contact with each other;

FIG. 5 is a schematic structural view of example 4;

FIG. 6 is a schematic structural view of example 5;

FIG. 7 is a schematic structural view of example 6;

fig. 8 is a schematic structural view of a movable contact and a fixed contact in embodiment 7;

fig. 9 is a schematic structural view of a movable contact and a fixed contact in embodiment 7 when they are not in contact with each other;

FIG. 10 is a schematic structural view of example 8;

FIG. 11 is a schematic structural view of example 9;

FIG. 12 is a schematic structural view of example 10;

fig. 13 is a schematic structural view of a movable contact and a fixed contact in contact according to embodiment 11;

fig. 14 is a schematic structural view of a movable contact and a fixed contact in embodiment 11 when they are not in contact with each other;

fig. 15 is a schematic structural view of a movable contact and a fixed contact in contact according to embodiment 12;

fig. 16 is a schematic structural view of a movable contact and a fixed contact in embodiment 12 when they are not in contact with each other;

fig. 17 is a schematic structural view of a movable contact and a fixed contact in contact according to embodiment 13;

fig. 18 is a schematic structural view of a movable contact and a fixed contact in embodiment 13 when they are not in contact with each other;

fig. 19 is a schematic structural view of a movable contact and a fixed contact in contact according to embodiment 14;

fig. 20 is a schematic structural view of the movable contact and the fixed contact in the case of no contact in embodiment 14;

fig. 21 is a schematic structural view of a movable contact and a fixed contact in embodiment 15 when they are not in contact with each other;

fig. 22 is a schematic structural view of a movable contact and a fixed contact in contact according to embodiment 15;

fig. 23 is a schematic structural view of a movable contact and a fixed contact in embodiment 16 when they are not in contact with each other;

fig. 24 is a schematic structural view of a movable contact and a fixed contact in contact according to embodiment 16. The figures show that:

first magnet 1 second ferromagnetic piece 14

First insulator 15 of static contact 2

Second insulating part 16 of moving contact 3

First line 17 of switch housing 4

Second lead wire 18 of first electromagnetic coil 5

First elastomer 6 magnet support 19

The first support 7 drives the connecting rod 20

Second support 8 guide sleeve 21

Yoke structure 9 third elastic body 22

First guide rod 23 of second electromagnetic coil 10

Sliding through hole 24 of second elastic body 11

First magnetic body 12 guide assembly 25

Elastic buffer 13 second guide rod 26

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.

Example 1:

the invention provides a bistable switch device which comprises a first magnet 1, a fixed contact 2, a movable contact 3 and a switch shell 4, wherein the first magnet 1, the fixed contact 2 and the movable contact 3 are all arranged on the switch shell 4, the switch shell 4 is preferably made of insulating materials, the first magnet 1 is preferably made of a permanent magnet, the fixed contact 2 and the movable contact 3 are preferably made of conductive materials, a first electromagnetic coil 5 is arranged on the circumference of the first magnet 1, a magnetic field is generated when positive current or negative current is introduced into the first electromagnetic coil 5, the first magnet 1 moves under the action of magnetic field magnetic force, the first magnet 1 can drive the movable contact 3 to move between a first position and a second position, and the movable contact 3 can stop at the first position or the second position due to an elastic body component arranged on the switch shell 4 and/or a ferromagnetic component arranged on the switch shell 4 after the first electromagnetic coil 5 is powered off A second position; when the moving contact 3 is at the first position, the moving contact 3 is in contact with the static contact 2, when the moving contact 3 is at the second position, the moving contact 3 is not in contact with the static contact 2, the connection and disconnection of the switch device can be realized by controlling the moving contact 3 to move between the first position and the second position, and the elastomer component and/or the ferromagnetic component in the invention can stably stop the moving contact 3 at the first position or the second position so as to enable the switch device to be stably in a connection state or a disconnection state.

Specifically, the elastic body assembly preferably includes a first elastic body 6, a first support member 7 and a second support member 8, wherein two ends of the first elastic body 6 are respectively connected with the first support member 7 and the second support member 8, both the first support member 7 and the second support member 8 are preferably elastic structures, when the moving contact 3 is at a first position, a first convex surface is formed on one surface of the middle portion of the first elastic body 6 facing the static contact 2, and elastic support is formed on the moving contact 3 in a direction in which the first convex surface protrudes, so that the moving contact 3 is stably in a state of being communicated with the static contact 2 under the support of the first elastic body 6; when the first electromagnetic coil 5 is energized with a reverse current, the first elastic body 6 moves under the action of a magnetic force, so that a second convex surface is formed on one surface of the first elastic body facing away from the static contact 2, and an elastic support is formed on the movable contact 3 in the direction in which the second convex surface protrudes, wherein in the process that the movable contact 3 moves from the first position to the second position, the first support member 7 and the second support member 8 are slightly deformed under the driving of the first elastic body 6, and return to the initial position after the first elastic body 6 reaches the second position, and form a supporting force on two sides of the first elastic body 6 together, and the first elastic body 6 is made of a conductive material, and can be of a sheet-shaped structure, a strip-shaped structure and the like, such as a wafer and the like.

Further, the electromagnetic switch further comprises a yoke structural member 9, the yoke structural member 9 is preferably made of silicon steel sheets, the cross section of the yoke structural member 9 is preferably in a two-symmetrically-arranged C-shaped structure, the yoke structural member 9 is arranged along the circumferential direction of the first magnet 1, the first electromagnetic coil 5 is preferably mounted on the yoke structural member 9, and the yoke structural member 9 can effectively reduce the magnetic aging of the first electromagnetic coil 5, wherein the first supporting member 7 is mounted on the yoke structural member 9 or the switch housing 4, and the second supporting member 8 is mounted on the yoke structural member 9 or the switch housing 4.

Specifically, the elastic buffer parts 13 are respectively arranged at one end or two ends of the first magnet 1, so that on one hand, elastic buffering exists when the movable contact 3 is in contact with the static contact 2, the impact force is reduced, on the other hand, the movement stroke of the movable contact 3 can be controlled within a range when the movable contact 3 is in contact with the static contact 2, the processing precision of a product is reduced, and the manufacturing cost of the product is reduced.

Specifically, the ferromagnetic component includes a first magnetic body 12, where the first magnetic body 12 is disposed along a circumferential direction of the first magnet 1 or disposed deviating from an axis direction of the first magnet 1, so that the first magnet 1 drives the moving contact 3 to move and stop at a first position or a second position through the first magnetic body 12, and when an actual product is designed, the moving contact 3 may be installed inside a yoke structural member 9 provided inside the switch housing 4 or outside the yoke structural member 9, and specifically, the design should be flexible according to an actual application scenario of the product.

Example 2:

this embodiment is a preferred embodiment of embodiment 1.

In this embodiment, as shown in fig. 1 and 2, the elastic body assembly includes a first elastic body 6, a first supporting member 7, and a second supporting member 8, the moving contact 3 is installed outside the yoke structural member 9, the first elastic body 6 is a metal disc, wherein the first supporting member 7 and the second supporting member 8 are respectively installed at two ends of the yoke structural member 9 through a first insulating member 15 and a second insulating member 16, when the moving contact 3 is at a first position, a first convex surface is formed on a surface of the middle portion of the first elastic body 6 facing the stationary contact 2, and an elastic support is formed on the moving contact 3 in a direction in which the first convex surface protrudes, so that the moving contact 3 is stably contacted with the stationary contact 2; when the moving contact 3 moves from the first position to the second position, the first magnet 1 is driven by the electromagnetic field magnetic force of the first electromagnetic coil 5 to drive the first elastic body 6 to move from the position shown in fig. 1 to the position shown in fig. 2, that is, the surface facing away from the static contact 2 forms a second convex surface and forms an elastic support for the moving contact 3 in the direction in which the second convex surface protrudes, so that the moving contact 3 can stably stop at the second position, and a bistable structure in two states of connection and disconnection is formed.

Further, in the present embodiment, the yoke structure 9 is provided with the second electromagnetic coil 10 along the circumferential direction, and the second electromagnetic coil 10 is provided to enhance the magnetic field around the first magnet 1, so that the driving force for moving the first magnet 1 between the first position and the second position can be effectively increased.

Specifically, as shown in fig. 1, an elastic buffer 13 is further disposed between the first magnet 1 and the moving contact 3, and the elastic buffer 13 is made of elastic rubber, so that buffering when the moving contact 3 contacts the static contact 2 can be achieved, and switching operation is more stable.

Example 3:

this embodiment is a modification of embodiment 1.

In this embodiment, the moving contact 3 is installed outside the yoke structural member 9, on the basis of embodiment 2, a second elastic body 11 is additionally arranged between the first magnet 1 and the switch housing 4, the second elastic body 11 is preferably a spring, as shown in fig. 3, the moving contact 3 is in contact with the fixed contact 2, the first conducting wire 17 is communicated with the second conducting wire 18, and at this time, the spring is stretched to have a return elastic force; when the first electromagnetic coil 5 is electrified to drive the first magnet 1 to compress the spring, the moving contact 3 is driven to be disconnected from the static contact 2 by overcoming the elastic force of the spring so that the first magnet 1 reaches the second position, and at the moment, the first elastic body 6 protrudes towards the first magnet 1 to form a second protrusion to form a stable support for the first magnet 1 to reach the position shown in fig. 4.

Example 4:

this embodiment is another modification of embodiment 1.

In this embodiment, as shown in fig. 5, the first elastic body 6 is omitted and a ferromagnetic component is added on the basis of embodiment 2, the ferromagnetic component includes a first magnetic body 12, the first magnetic body 12 is preferably made of a ferromagnetic material, the first magnetic body 12 is arranged in a direction deviating from the axial center direction of the first magnetic body 1, the first magnetic body 12 is connected to the first magnetic body 1 and moves synchronously with the first magnetic body 1, the first magnetic body 12 generates a magnetic force due to magnetic conduction, and when the movable contact 3 moves to the first position or the second position, the first magnetic body 12 magnetically attracts the yoke structural member 9 to further stably stop the movable contact 3 at the first position or the second position, thereby achieving a bistable effect.

Example 5:

this embodiment is still another modification of embodiment 1.

In this embodiment, the first magnetic body 1 is redesigned on the basis of embodiment 4, the first magnetic body 1 is a plurality of permanent magnets sequentially arranged at intervals in the moving direction of the first magnetic body 1, as shown in fig. 6, wherein the plurality of permanent magnets are sequentially arranged on the magnetic body support frame 19 at intervals, the magnetic force of the first magnetic body 1 is greatly enhanced by arranging the first magnetic body 1 as the plurality of permanent magnets sequentially arranged at intervals, which is beneficial to increase the driving force to the first magnetic body 1 after the first electromagnetic coil 5 is powered on.

Example 6:

this embodiment is still another modification of embodiment 1.

In this embodiment, the yoke structural member 9 in embodiment 5 is omitted, and as shown in fig. 7, the ferromagnetic assembly further includes a second ferromagnetic member 14, and the second ferromagnetic member 14 is preferably a permanent magnet, and when the movable contact 3 is in the first position or the second position, the first magnetic member 12 and the second ferromagnetic member 14 are magnetically attracted, so that the bistable effect of the present invention can also be achieved.

Example 7:

this embodiment is another preferable embodiment of embodiment 1.

In this embodiment, the first magnet 1 is connected to the movable contact 3 through a driving connecting rod 20, a first connecting through hole is formed in the yoke structural member 9, a guiding sleeve 21 is disposed in the first connecting through hole, one end of the driving connecting rod 20 is fixedly connected to the movable contact 3, and the other end of the driving connecting rod 20 passes through the guiding sleeve 21, extends into the yoke structural member 9, passes through the first magnet 1, and then continues to extend into a second connecting through hole in the yoke structural member 9, wherein the first connecting through hole and the second connecting through hole play a role in guiding, so that the first magnet 1 can move along the axial direction of the driving connecting rod 20 when moving, and fig. 8 and 9 respectively show a situation where the movable contact 3 moves to a first position and a second position, so that the movable contact 3 can also achieve the effect of the present invention.

Example 8:

this embodiment is still another modification of embodiment 1.

In this embodiment, a design is changed on the basis of embodiment 7, a driving connecting rod 20 is connected to the movable contact 3 through a third elastic body 22, specifically, as shown in fig. 10, the third elastic body 22 preferably adopts a spring, a second accommodating space communicated with the outside is arranged inside the movable contact 3, the third elastic body 22 is installed in the second accommodating space, one end of the third elastic body 22 is connected to the movable contact 3, the other end of the third elastic body 22 is connected to the driving connecting rod 20, when the driving connecting rod 20 drives the movable contact 3 to contact with the stationary contact 2, buffering can be performed through the third elastic body 22, meanwhile, the design precision of the movement stroke of the first magnet 1 can be reduced, and the production cost of the product can be reduced.

Example 9:

this embodiment is still another modification of embodiment 1.

In this embodiment, as shown in fig. 11, the effects of the present invention can be achieved based on the same principle as in embodiment 4.

Example 10:

this embodiment is still another modification of embodiment 1.

In this embodiment, the movable contact 3 is mounted on the yoke structural member 9, as shown in fig. 12, the first elastic body 6 includes a first elastic strip and a second elastic strip, wherein one end of the first elastic strip is connected to the first magnet 1, the other end of the first elastic strip is connected to the first supporting member 7, one end of the second elastic strip is connected to the first magnet 1, the other end of the second elastic strip is connected to the second supporting member 8, a first guiding rod 23 is mounted on the yoke structural member 9 and extends into a sliding through hole 24 on the first magnet 1 inside the yoke structural member 9, the first guiding rod 23 starts to guide the first magnet 1 to move along the axial direction, and when the first magnet 1 moves between the first position and the second position, a bistable effect of the present invention can be achieved under combined action of the first elastic strip and the second elastic strip.

Example 11:

this embodiment is still another modification of embodiment 1.

In this embodiment, the first guiding rod 23 in embodiment 10 is omitted, and as shown in fig. 13 and fig. 14, the first magnet 1 is shown in the first position and the second position respectively, and the guiding in the moving direction of the first magnet 1 and the bistable effect in the present invention can be realized only by the combined action of the first elastic strip and the second elastic strip.

Example 12:

this embodiment is still another modification of embodiment 1.

In this embodiment, the elastomer component in embodiment 11 is omitted and provided with a ferromagnetic component, the ferromagnetic component is made of a first magnetic body 12, the first magnetic body 12 is made of a ferromagnetic material, a guide component 25 is arranged on the first magnet 1 in the circumferential direction, and a channel for guiding the first magnet 1 to move is arranged on the guide component 25, so that the first magnet 1 moves along the axial direction, where fig. 15 shows that the first magnet 1 moves to the first position, fig. 16 shows that the first magnet 1 moves to the second position, and the bistable effect in the present invention is achieved by the magnetic attraction force of the first magnetic body 12 and the first magnet 1.

Example 13:

this embodiment is still another modification of embodiment 1.

In this embodiment, the yoke structural member 9 is omitted, two first magnetic bodies 12 are used, and are respectively disposed at two ends of the first magnet 1, the first magnetic bodies 12 are permanent magnets or ferromagnetic bodies, for example, the movable contacts 3 in fig. 17 and 18 are respectively at the first position and the second position, a space capable of allowing the first magnet 1 to move is provided in the first electromagnetic coil 5, so that the first magnet 1 can drive the movable contact 3 to move between the first position and the second position, and two permanent magnets with opposite polarities are respectively disposed at end positions of the two moving positions of the first magnet 1, so as to achieve the bistable effect of the present invention.

Example 14:

this embodiment is still another modification of embodiment 1.

In this embodiment, the movable contact 3 and the stationary contact 2 in embodiment 13 are designed in a modified manner, as shown in fig. 19 and 20, so that the bistable effect of the present invention can be achieved.

Example 15:

this embodiment is still another modification of embodiment 1.

In this embodiment, the movable contact 3 and the fixed contact 2 in embodiment 13 are designed to be changed, as shown in fig. 21 and 22, so that the bistable effect in the present invention can be achieved.

Example 16:

this embodiment is still another modification of embodiment 1.

In this embodiment, the number of the first magnetic bodies 1 is 2, the first magnetic bodies 1 are permanent magnets, two first magnetic bodies 1 are arranged on two sides of the first electromagnetic coil 5, and the two first magnetic bodies 1 are arranged with the second guide rod 26 along the axial direction, the first electromagnetic coil 5 is fixedly installed on the switch housing 4, as shown in fig. 23 and 24, the polarities of the two permanent magnets are opposite, when the first electromagnetic coil 5 is supplied with a positive current or a negative current, the first electromagnetic coil 5 magnetically attracts or magnetically repels the two permanent magnets, so that the first magnetic body 1 drives the movable contact 3 to move between the first position and the second position, and the first magnetic bodies 12 are arranged at two positions where the first magnetic body 1 moves, the first magnetic bodies 12 are permanent magnets or ferromagnetic bodies and can generate magnetic attraction when the first magnetic body 1 moves to the two positions, so that the first magnetic body 1 is in a stable state, further, the bistable effect of the present invention can be achieved.

Taking the embodiment 2 as an example, the working principle of the invention is as follows:

as shown in fig. 1 and 2, when a forward current is applied to the first electromagnetic coil 5 to generate a magnetic field, so as to drive the first magnet 1 to drive the moving contact 3 to move to the first position, a first convex surface is formed at a middle portion of the first elastic body 6 facing a surface of the static contact 2, and an elastic support is formed on the moving contact 3 in a direction in which the first convex surface protrudes under the support of the first support 7 and the second support 8, so that the moving contact 3 is stabilized at the first position and is stably contacted with the static contact 2; when negative current is applied to the first electromagnetic coil 5 to generate an opposite magnetic field, so as to drive the first magnet 1 to drive the movable contact 3 to move from the first position to the second position, that is, from fig. 1 to the position in fig. 2, that is, a second convex surface is formed on one surface of the first elastic body 6, which is opposite to the fixed contact 2, and the movable contact 3 is elastically supported in the direction in which the second convex surface protrudes under the support of the first supporting member 7 and the second supporting member 8, so that the movable contact 3 can be stably stopped at the second position, and the switching device forms a bistable structure in two states of connection and disconnection.

Taking the embodiment 4 as an example, the working principle of the invention is as follows:

as shown in fig. 5, when a forward current is applied to the first electromagnetic coil 5 to generate a magnetic field, so as to drive the first magnet 1 to drive the movable contact 3 to move to the first position, since the first magnet 1 is magnetically conducted to the first magnetic body 12, so that the first magnetic body 12 generates magnetism, the first magnetic body 12 is magnetically attracted to the yoke structural member 9 to generate magnetic damping for the movement of the first magnet 1, so that the movable contact 3 is stabilized at the first position and is stably contacted with the stationary contact 2; when negative current is introduced into the first electromagnetic coil 5 to generate an opposite magnetic field, so as to drive the first magnet 1 to drive the moving contact 3 to move from the first position to the second position, at the moment, the first magnetic body 12 is magnetically attracted with the yoke structural member 9 due to magnetism generated by magnetic conduction to generate magnetic damping of the movement of the first magnet 1, so that the moving contact 3 is stably stopped at the second position, and the switching device forms a bistable structure in two states of connection and disconnection.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.