Switching device

Abstract

The utility model relates to a switching device, which comprises a static contact component, a movable contact component, an operation part and an electric driving assembly, and is characterized in that the static contact component comprises a static contact; the movable contact component comprises a movable contact, the movable contact component is constructed to have a critical state, a first free state and a second free state, when the critical state is switched to the first free state, the movable contact moves in the direction close to the static contact so as to be in contact with the static contact, and when the critical state is switched to the second free state, the movable contact moves in the direction close to the static contact so as to be in contact with the static contact. In the first free state, the movable contact moves in the direction away from the static contact, and in the second free state, the movable contact and the static contact are kept separated; the operating part is used for driving the movable contact part to deviate from a critical state so as to move towards one of a first free state and a second free state; the electric driving assembly is configured to drive the movable contact part to deviate from the critical state in the power-on state so as to move towards the other one of the first free state and the second free state. Therefore, not only is the energy consumption of the switching device reduced, but also the service life of the switching device can be prolonged.

Description

Technical Field

[0001] The present disclosure relates to the field of electrical equipment, and in particular to a switch device. Background Art

[0002] For example, switch devices such as electromagnetic switches and relays work by generating magnetic force through electricity, thereby controlling the on and off of the circuit. However, the switch devices in the related art have the problems of high power consumption and short service life. Utility Model Content

[0003] In order to overcome the problems existing in the related art, the present disclosure provides a switch device.

[0004] The present disclosure provides a switch device, which includes a static contact component, wherein the static contact component includes a static contact; a moving contact component, wherein the moving contact component includes a moving contact, and the moving contact component is constructed to have a critical state, a first free state, and a second free state, wherein when switching from the critical state to the first free state, the moving contact moves in a direction close to the static contact to contact the static contact, and when switching from the critical state to the second free state, the moving contact moves in a direction away from the static contact, and in the second free state, the moving contact remains separated from the static contact; an operating part, wherein the operating part is used to drive the moving contact component to deviate from the critical state to move to one of the first free state and the second free state; and an electric drive component, wherein the electric drive component is configured to drive the moving contact component to deviate from the critical state to move to the other of the first free state and the second free state in a power-on state.

[0005] In some embodiments of the present disclosure, the moving contact component also includes a moving contact piece, the moving contact is arranged on a first end of the moving contact piece, the moving contact piece includes the critical state, the first free state and the second free state, the operating part is connected to the moving contact piece to drive the moving contact piece to bend in a first direction so that the moving contact piece deviates from the critical state and moves to one of the first free state and the second free state, the electric drive component can abut against the moving contact piece to press the moving contact piece to bend in a second direction so that the moving contact piece deviates from the critical state and moves to the other of the first free state and the second free state, and the second direction is opposite to the first direction.

[0006] In some embodiments of the present disclosure, a deformation region is provided on the moving contact piece, and in the critical state, the deformation region is used to bend the first end of the moving contact piece toward the first direction or the second direction.

[0007] In some embodiments of the present disclosure, the moving contact piece includes a first surface and a second surface opposite to each other. When switching from the critical state to the first free state, the moving contact piece located in the deformation area changes from being concave from the first surface to the second surface to being concave from the second surface to the first surface. When switching from the critical state to the second free state, the moving contact piece located in the deformation area changes from being concave from the second surface to the first surface to being concave from the first surface to the second surface.

[0008] In some embodiments of the present disclosure, the switch device further includes: a housing, and the static contact component, the moving contact component, the operating part and the electric drive assembly are all arranged in the housing.

[0009] In some embodiments of the present disclosure, a slide groove is provided in the shell, and the operating part includes: a slider, the slider is slidably connected to the slide groove, and the slider is connected to the moving contact piece; a push rod, a first end of the push rod is connected to the slider, and the second end of the push rod extends out of the shell, and the push rod is used to push the slider to move from the first position to the second position, so as to drive the moving contact piece to deviate from the critical state to move to one of the first free state and the second free state, and when the moving contact piece moves from the critical state to the other of the first free state and the second free state, the moving contact piece drives the slider to move from the second position to the first position, so as to reset the operating part.

[0010] In some embodiments of the present disclosure, a first slit is provided on the sliding block, and the first end of the moving contact piece is provided in the first slit.

[0011] In some embodiments of the present disclosure, the electric drive component includes: a touch-pressure component, the touch-pressure component includes a third position and a fourth position, in the third position, the touch-pressure component abuts against the moving contact piece, and in the fourth position, the touch-pressure component is separated from the moving contact piece; an electromagnetic unit, in the power-on state, the electromagnetic unit is used to provide electromagnetic force to the touch-pressure component, and the electromagnetic force is used to drive the touch-pressure component to move from the fourth position to the third position.

[0012] In some embodiments of the present disclosure, a contact area is further provided on the moving contact piece, and the contact area is located between the first end of the moving contact piece and the deformation area, the electromagnetic unit includes a support portion and a coil wound around the outside of the support portion, the terminal of the coil extends out of the outside of the housing, the support portion is fixed in the housing, and the support portion is provided with a through hole along the axial direction of the support portion; the touch-pressure assembly includes: a floating member, the floating member includes a connected floating column and a floating plate, the floating column is provided in the through hole and can move along the axial direction of the through hole, and the orthographic projection of the through hole on the floating plate is located within the outer edge of the floating plate; a touch-pressure member, one end of the touch-pressure member is sleeved on the floating column and is located between the support portion and the floating plate, and the other end of the touch-pressure member is used to abut against the contact area, in the third position, the floating plate presses the touch-pressure member so that the touch-pressure member abuts against the abutment area, and in the fourth position, the floating plate is away from the touch-pressure member so that the touch-pressure member is separated from the moving contact piece.

[0013] In some embodiments of the present disclosure, the touch-pressure member includes a first touch-pressure plate and a second touch-pressure plate connected by a rotating shaft, the first touch-pressure plate is sleeved on the floating column, the second touch-pressure plate is used to abut against the abutment area, and the rotating shaft is rotatably connected to the housing so that the first touch-pressure plate and the second touch-pressure plate can rotate around the rotating shaft.

[0014] In some embodiments of the present disclosure, the electromagnetic unit further includes: an elastic member, wherein the elastic member is disposed in the through hole, and the elastic member is used to provide an elastic force to the floating member to move the floating plate in a direction away from the supporting portion.

[0015] In some embodiments of the present disclosure, the shell includes a first side plate and a second side plate relative to each other, one end of the elastic member is connected to the first side plate, and the other end of the elastic member is connected to the floating column, and in the fourth position, the floating plate abuts against the second side plate.

[0016] In some embodiments of the present disclosure, the static contact component also includes a first fixed plate portion, which is fixed to the inner wall of the outer shell, the static contact is arranged on the first fixed plate portion, and the wiring terminal of the first fixed plate portion extends to the outside of the outer shell; the moving contact component also includes a second fixed plate portion, which is fixed to the inner wall of the outer shell, the second end of the moving contact piece is connected to the second fixed plate portion, and the wiring terminal of the second fixed plate portion extends to the outside of the outer shell.

[0017] In some embodiments of the present disclosure, the switch device further includes: a limiting structure, the limiting structure is disposed in the housing, a second gap is disposed on the limiting structure, and the deformation area of ​​the movable contact piece is disposed in the second gap.

[0018] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0019] The switch device provided by the present disclosure has a moving contact part having a critical state, a first free state and a second free state, the operating part can drive the moving contact part to deviate from the critical state to move to one of the first free state and the second free state, and the electric drive component is configured to drive the moving contact part to deviate from the critical state to move to the other of the first free state and the second free state in the power-on state, when switching from the critical state to the first free state, the moving contact will move in a direction close to the static contact to contact with the static contact, when switching from the critical state to the second free state, the moving contact will move in a direction away from the static contact, and in the second free state, the moving contact and the static contact remain separated. In this way, it is only necessary to energize when the electric drive component switches between the state in which the moving contact and the static contact are in contact and the state in which the moving contact and the static contact are separated, and it is not necessary to energize when maintaining the state in which the moving contact and the static contact are in contact or maintaining the state in which the moving contact and the static contact are separated, thereby reducing the power-on time of the switch device, thereby effectively reducing the energy consumption of the switch device and extending the service life of the switch device.

[0020] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0022] Figure 1 is a schematic structural diagram of a switch device according to an exemplary embodiment;

[0023] Figure 2 is a schematic structural diagram of a switch device according to another exemplary embodiment;

[0024] Figure 3 yes Figure 2 Sectional view along AA direction;

[0025] Figure 4 is a structural schematic diagram of a switch device according to an exemplary embodiment when the movable contact piece is in a second free state;

[0026] Figure 5is a schematic structural diagram of a switch device according to an exemplary embodiment when the operating part drives the moving contact piece to be in a critical state;

[0027] Figure 6 is a schematic structural diagram of a switch device according to an exemplary embodiment when the movable contact piece is in a first free state;

[0028] Figure 7 It is a schematic structural diagram of a switch device according to an exemplary embodiment when the moving contact piece is driven by an electric drive component to be in a critical state.

[0029] In the figure:

[0030] 1-switch device; 11-static contact component; 111-static contact; 112-first fixed plate; 12-moving contact component; 121-moving contact; 122-moving contact piece; 1221-deformation area; 1222-first surface; 1223-second surface; 123-second fixed plate; 13-operating part; 131-push rod; 132-slider; 133-first gap; 14-electric drive component; 14 1-floating member; 1411-floating column; 1412-floating plate; 142-supporting part; 1421-through hole; 143-coil; 144-touch member; 1441-rotating shaft; 1442-first touch plate; 1443-second touch plate; 145-elastic member; 15-housing; 151-first side plate; 152-second side plate; 153-slide groove; 154-limiting structure; 1541-second gap. DETAILED DESCRIPTION

[0031] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0032] For example, switch devices such as electromagnetic switches and relays work by generating magnetic force through electricity, thereby controlling the on and off of the circuit. However, the switch devices in the related art have the problems of high power consumption and short service life.

[0033] For example, an electromagnetic switch is used as an example. The electromagnetic switch in the related art includes a moving contact, a stationary contact, a movable iron core and an electromagnetic coil. When the electromagnetic coil is energized, a magnetic field is generated. The magnetic field attracts the movable iron core to move the movable iron core, thereby driving the moving contact to contact the stationary contact, thereby realizing the conduction of the circuit where the electromagnetic switch is located. When the power is disconnected, the magnetic force disappears, the movable iron core is reset, and the moving contact is separated from the stationary contact, thereby realizing the disconnection of the circuit where the electromagnetic switch is located. If the circuit needs to be maintained in a conductive state, the electromagnetic coil needs to be continuously energized so that the moving contact and the stationary contact remain in contact.

[0034] Let's take the relay as an example. The relay in the related art is mainly composed of a moving contact, a static contact, an electromagnetic coil, and an iron sheet. Relays are usually divided into normally open relays, normally closed relays, and normally open and normally closed relays. For the normally open relay, its working principle is that when the electromagnetic coil is energized, a magnetic field is generated, and the magnetic field attracts the iron sheet to move the iron sheet, thereby driving the moving contact and the static contact to contact each other, so as to achieve the conduction of the circuit where the relay is located. When the power is disconnected, the magnetic force disappears, the iron sheet resets, and the moving contact is separated from the static contact, thereby achieving the disconnection of the circuit where the relay is located. If the circuit needs to be maintained in a conductive state, it is necessary to keep the electromagnetic coil continuously energized so that the moving contact and the static contact continue to maintain contact.

[0035] For a normally closed relay, the working principle is that when the electromagnetic coil is energized, a magnetic field is generated, which attracts the iron sheet to move, thereby driving the moving contact and the static contact to separate, thereby disconnecting the circuit where the relay is located. When the power is disconnected, the magnetic force disappears, the iron sheet is reset, and the moving contact and the static contact are in contact, thereby connecting the circuit where the relay is located. If the circuit needs to be maintained in a disconnected state, the electromagnetic coil needs to be continuously energized so that the moving contact and the static contact remain separated.

[0036] For a normally open and normally closed relay, it includes a first static contact and a second static contact that are arranged relatively to each other, and a moving contact is arranged between the first static contact and the second static contact. Its working principle is that when the electromagnetic coil is energized, a magnetic field is generated, and the iron sheet is attracted by the magnetic field to move the iron sheet, thereby driving the moving contact to contact the first static contact, so that the moving contact is separated from the second static contact, and the circuit where the second static contact is located is disconnected by conducting the circuit where the first static contact is located. When the power supply is disconnected, the magnetic force disappears, the iron sheet is reset, and the moving contact is in contact with the second static contact, so that the moving contact is separated from the first static contact, and the circuit where the first static contact is located is disconnected by conducting the circuit where the second static contact is located. If it is necessary to maintain the disconnected state of the circuit where the second static contact is located, it is necessary to keep the electromagnetic coil continuously energized so that the moving contact is in contact with the first static contact through the moving contact, so that the moving contact is separated from the second static contact.

[0037] From the foregoing, it can be seen that when the switch device in the related art controls the on and off states of the circuit, there is always a state that requires continuous power supply to maintain the circuit in this state under the action of magnetic force, which results in higher power consumption of the switch device and shortens the service life of the switch device.

[0038] In order to solve the above technical problems, the present disclosure provides a switch device, wherein the moving contact component has a critical state, a first free state, and a second free state, and the operating part can drive the moving contact component to deviate from the critical state to move to one of the first free state and the second free state, and the electric drive component is configured to drive the moving contact component to deviate from the critical state to move to the other of the first free state and the second free state in the power-on state, when switching from the critical state to the first free state, the moving contact will move in a direction close to the static contact to contact with the static contact, and when switching from the critical state to the second free state, the moving contact will move in a direction away from the static contact, and in the second free state, the moving contact and the static contact remain separated. In this way, it is only necessary to energize when the electric drive component switches between the state in which the moving contact and the static contact are in contact and the state in which the moving contact and the static contact are separated, and it is not necessary to energize when maintaining the state in which the moving contact and the static contact are in contact or maintaining the state in which the moving contact and the static contact are separated, thereby reducing the power-on time of the switch device, thereby effectively reducing the energy consumption of the switch device and extending the service life of the switch device.

[0039] An exemplary embodiment of the present disclosure provides a switch device, which may be, for example, an electromagnetic switch, a relay, a contactor, or other switch device that operates by electromagnetic force. Figure 1 As shown, the switch device 1 includes a stationary contact component 11 , a movable contact component 12 , an operating portion 13 and an electric drive assembly 14 .

[0040] The stationary contact component 11 includes a stationary contact 111, and the movable contact component 12 includes a movable contact 121. Exemplarily, the stationary contact component 11 may include only one structural component, the stationary contact 111, or a combination of multiple structural components; similarly, the movable contact component 12 may include only one structural component, the movable contact 121, or a combination of multiple structural components.

[0041] Combination Figure 4 , Figure 5 and Figure 6The moving contact part 12 is constructed to have a critical state, a first free state and a second free state. When switching from the critical state to the first free state, the moving contact 121 moves in a direction close to the static contact 111 to contact with the static contact 111. When the moving contact 121 contacts with the static contact 111, the circuit in which the switch device 1 is located is turned on. When switching from the critical state to the second free state, the moving contact 121 moves in a direction away from the static contact 111 to separate the moving contact 121 from the static contact 111, thereby disconnecting the circuit in which the switch device 1 is located. And in the second free state, the moving contact 121 remains separated from the static contact 111.

[0042] Combination Figure 5 , the operating part 13 is used to drive the moving contact part 12 to deviate from the critical state to move to one of the first free state and the second free state. Exemplarily, the operating part 13 can be manually operated by the user, such as pushing, pressing, pulling out, etc., or the operating part 13 can be controlled by linkage with the matching device. For example, the switch device 1 is applied to the smart door lock, and then the operation of pushing, rotating, etc. of the operating part 13 can be achieved by linkage with the buttons, door handles and other structural parts of the smart door lock. Exemplarily, when the switch device 1 is applied to the smart door lock, for example, the locking and unlocking of the smart door lock can be automatically controlled by the switch device 1, and the locking and unlocking of the smart door lock can also be achieved by manually operating the operating part 13. At this time, it can avoid the switch device 1 being unable to automatically control the unlocking or locking of the smart door lock due to power failure, insufficient power, etc., thereby effectively improving the user experience.

[0043] It should be noted that the process of driving the movable contact member 12 to deviate from the critical state to move toward one of the first free state and the second free state through the operating portion 13 does not require power supply, but only requires physical operation.

[0044] The operating part 13 drives the movable contact part 12 to deviate from the critical state to move toward one of the first free state and the second free state. For example, it can be that the operating part 13 only needs to drive the movable contact part 12 to move from the first free state or the second free state to the critical state, and the movable contact part 12 moving from the first free state to the critical state will automatically deviate from the critical state and move to the second free state, and the movable contact part 12 moving from the second free state to the critical state will automatically deviate from the critical state and move to the first free state; it can also be that the operating part 13 drives the movable contact part 12 to move from the first free state or the second free state through the critical state and continue to move to a position where the movable contact part 12 deviates from the critical state, and the movable contact part 12 moving from the first free state to this position will enter the second free state or continue to move to the second free state, and the movable contact part 12 moving from the second free state to this position will enter the first free state or continue to move to the first free state.

[0045] Combination Figure 7 , the electric drive component 14 is configured to drive the movable contact part 12 to deviate from the critical state to move to the other of the first free state and the second free state in the power-on state. For example, the operating part 13 can drive the movable contact part 12 to deviate from the critical state to move to the first free state, and the electric drive component 14 can drive the movable contact part 12 to deviate from the critical state to move to the second free state in the power-on state; or the operating part 13 can drive the movable contact part 12 to deviate from the critical state to move to the second free state, and the electric drive component 14 can drive the movable contact part 12 to deviate from the critical state to move to the first free state in the power-on state, which is not specifically limited here.

[0046] In addition, the electric drive component 14 is configured to drive the moving contact part 12 to deviate from the critical state to move to the other of the first free state and the second free state in the power-on state. For example, it can be that the electric drive component 14 only needs to drive the moving contact part 12 to move from the first free state or the second free state to the critical state in the power-on state. At this time, the power supply is disconnected, and the moving contact part 12 moving from the first free state to the critical state will automatically deviate from the critical state and move to the second free state, and the moving contact part 12 moving from the second free state to the critical state will automatically deviate from the critical state and move to the first free state; it can also be that the electric drive component 14 in the power-on state moves from the first free state or the second free state through the critical state and then continues to move to a position where the moving contact part 12 is deviated from the critical state. At this time, the power supply is disconnected, and the moving contact part 12 moving from the first free state to this position will enter the second free state or continue to move to the second free state, and the moving contact part 12 moving from the second free state to this position will enter the first free state or continue to move to the first free state.

[0047] In this embodiment, the operation part 13 cooperates with the electric drive assembly 14, and it is only necessary to energize when the electric drive assembly 14 switches between the state where the moving contact 121 is in contact with the static contact 111 and the state where the moving contact 121 is separated from the static contact 111, and it is not necessary to energize when maintaining the state where the moving contact 121 is in contact with the static contact 111 or maintaining the state where the moving contact 121 is separated from the static contact 111, thereby reducing the energization time of the switch device 1, thereby effectively reducing the energy consumption of the switch device 1 and extending the service life of the switch device 1. At the same time, since the switch device 1 of this embodiment does not rely on continuous energy input when maintaining the state where the moving contact 121 is in contact with the static contact 11 or maintaining the state where the moving contact 121 is separated from the static contact 111, it is possible to improve the stability of the control circuit of the switch device 1 in maintaining the current state, thereby effectively improving the reliability of the switch device 1, and effectively reducing the cost.

[0048] In one embodiment, in combination Figure 1 The moving contact component 12 also includes a moving contact piece 122. The moving contact piece 122 may be, for example, an elastic spring. The moving contact 121 is disposed on a first end of the moving contact piece 122. Figure 4 , Figure 5 and Figure 6 , the moving contact piece 122 includes a critical state, a first free state, and a second free state. Figure 5 The operating part 13 is connected to the moving contact piece 122, for example, by welding, bonding, etc. The operating part 13 drives the moving contact piece 122 to bend in the first direction, so that the moving contact piece 122 deviates from the critical state and moves to one of the first free state and the second free state, thereby driving the moving contact 121 on the moving contact piece 122 to separate from or contact the static contact 111. With such a design, the operating part 13 drives the moving contact part 12 to move in a simple manner, thereby making the structure of the switch device 1 simple and easy to process and assemble.

[0049] Combination Figure 7 , the electric drive component 14 can abut against the moving contact piece 122 in the power-on state, so as to press the moving contact piece 122 to bend in the second direction so that the moving contact piece 122 deviates from the critical state to move to the other of the first free state and the second free state, thereby driving the moving contact 121 on the moving contact piece 122 to contact or separate from the static contact 111. The second direction is opposite to the first direction. For example, the first direction can be clockwise, and the second direction can be counterclockwise. With such a setting, the electric drive component 14 can drive the moving contact part 12 to move in a simple manner, so that the structure of the switch device 1 can also be simple, which is convenient for processing and assembly.

[0050] In one embodiment, in combination Figure 5 , a deformation region 1221 is provided on the moving contact piece 122, and in the critical state, the deformation region 1221 is used to bend the first end of the moving contact piece 122 in the first direction or the second direction. Exemplarily, when the first end of the moving contact piece 122 is bent in the first direction to move from the first free state to the critical state, when it moves to the critical state, under the action of the deformation region 1221, the moving contact piece 122 automatically deviates from the critical state and continues to bend in the first direction to move to the second free state; or, when the first end of the moving contact piece 122 is bent in the second direction to move from the first free state to the critical state, when it moves to the critical state, under the action of the deformation region 1221, the moving contact piece 122 automatically deviates from the critical state and continues to bend in the second direction to move to the second free state.

[0051] By setting a deformation area 1221 on the moving contact piece 122, the moving contact piece 122 can deviate from the critical state by itself to achieve contact or separation between the moving contact 121 and the static contact 111. Such a design not only simplifies the structure of the switch device 1, but also reduces the movement range of the operating part 13 and the electric drive component 14, which is beneficial to reducing the volume of the switch device 1 and facilitating the miniaturization design of the switch device 1.

[0052] In one embodiment, in combination Figure 4 , Figure 5 and Figure 6 The movable contact piece 122 includes a first surface 1222 and a second surface 1223 opposite to each other. When switching from the critical state to the first free state, that is, when the movable contact piece 122 that moves from the second free state to the critical state deviates from the critical state and moves to the first free state, the movable contact piece 122 located in the deformation area 1221 changes from being concave from the first surface 1222 to the second surface 1223 to being concave from the second surface 1223 to the first surface 1222. In this way, the movable contact piece 122 can deviate from the critical state and move to the first free state. Figure 4 , Figure 6 and Figure 7 When switching from the critical state to the second free state, that is, when the movable contact piece 122 that moves from the first free state to the critical state deviates from the critical state and moves to the second free state, the movable contact piece 122 located in the deformation area 1221 changes from being concave from the second surface 1223 to the first surface 1222 to being concave from the first surface 1222 to the second surface 1223, so that the movable contact piece 122 can deviate from the critical state and move to the second free state. With such a setting form, the structure of the movable contact piece 122 is simple and easy to process.

[0053] In one embodiment, in combination Figure 1The switch device 1 further includes a housing 15, and the static contact component 11, the moving contact component 12, the operating part 13 and the electric drive assembly 14 are all arranged in the housing 15. By providing the housing 15, each structural member can be protected, thereby effectively improving the reliability and safety of the switch device 1.

[0054] In one embodiment, in combination Figure 1 A slide groove 153 is provided in the shell 15. Exemplarily, the slide groove 153 can be provided in the shell 15 as a separate structural member, or a groove can be provided on the inner wall of the shell 15 or two guide plates can be relatively provided to form the slide groove 153. This is not specifically limited in this embodiment.

[0055] The operating part 13 includes a slider 132 and a push rod 131. The slider 132 is slidably connected to the slide groove 153, and the slider 132 is connected to the movable contact piece 122. Exemplarily, the slider 132 can be connected to the movable contact piece 122 by welding, bonding, clamping, etc. The first end of the push rod 131 is connected to the slider 132, and the second end of the push rod 131 extends out of the housing 15. In this way, it is convenient for the user or an external matching device to control the operating part 13.

[0056] Combination Figure 4 , Figure 5 and Figure 6 The push rod 131 is used to push the slider 132 to move from the first position to the second position, so as to drive the movable contact piece 122 to deviate from the critical state to move to one of the first free state and the second free state. When the movable contact piece 122 moves from the critical state to the other of the first free state and the second free state, the movable contact piece 122 drives the slider 132 to move from the second position to the first position, so as to reset the operating part 13.

[0057] For example, in combination Figure 4 , Figure 5 and Figure 6 , the description is made with the moving contact piece 122 being in the second free state as the initial state, and the position of the slider 132 when the moving contact piece 122 is in the second free state is the first position. The push rod 131 is pushed into the housing 15, and the push rod 131 pushes the slider 132 from the first position to the second position, driving the moving contact piece 122 to move from the second free state to the critical state. Afterwards, the moving contact piece 122 deviates from the critical state and moves toward the first free state. During this process, it drives the push rod 131 to continue to extend into the housing 15. Among them, the position of the slider 132 when the moving contact 121 is in contact with the static contact 111 is the second position. Combined with Figure 4 , Figure 6 and Figure 7When powered on, the electric drive assembly 14 drives the moving contact piece 122 to move from the first free state to the critical state, and then the moving contact piece 122 deviates from the critical state and moves to the second free state. During this process, the moving contact piece 122 drives the slider 132 to move from the second position to the first position, and the push rod 131 gradually extends out of the housing 15. When the moving contact piece 122 is in the second free state, the operating part 13 is also reset.

[0058] Such a design not only makes the structure more compact and is conducive to the miniaturization of the switch device 1 , but also effectively improves the convenience of use of the switch device 1 by driving the operating part 13 to reset by the movable contact piece 122 instead of manually resetting the operating part 13 .

[0059] In one embodiment, in combination Figure 1 The slider 132 is provided with a first slit 133, and the first end of the movable contact piece 122 is arranged in the first slit 133, so as to realize the connection between the slider 132 and the movable contact piece 122. With such a setting form, the switch device 1 has a simple structure and is easy to process and assemble.

[0060] In one embodiment, in combination Figure 4 , Figure 6 and Figure 7 , the electric drive component 14 includes a touch-pressure component and an electromagnetic unit. The touch-pressure component includes a third position and a fourth position. In the third position, the touch-pressure component abuts against the moving contact piece 122. In the fourth position, the touch-pressure component is separated from the moving contact piece 122. The electromagnetic unit can provide electromagnetic force to the touch-pressure component when it is powered on, and the electromagnetic force is used to drive the touch-pressure component to move from the fourth position to the third position. When the power is disconnected, the electromagnetic force disappears, and the touch-pressure component moves from the third position to the fourth position. Exemplarily, the moving contact piece 122 is in the first free state as the initial state for description. The electromagnetic unit drives the touch-pressure component to move from the fourth position to the third position when it is powered on, so as to press the moving contact piece 122 to move from the first free state to the critical state. Thereafter, the moving contact piece 122 deviates from the critical state and moves to the second free state by itself. At the same time, the power is disconnected, the electromagnetic force disappears, and the touch-pressure component moves from the third position to the fourth position. It should be noted that in the fourth position, the touch-pressure assembly is separated from the movable contact piece 122. The touch-pressure assembly may be separated from the movable contact piece 122 only when the touch-pressure assembly moves to the fourth position; or the movable contact piece 122 may be separated from the touch-pressure assembly after it moves to the second free state, until the power is disconnected to make the touch-pressure assembly move from the third position to the fourth position, and the touch-pressure assembly is always separated from the movable contact piece 122. Such a design makes the structure of the electric drive assembly 14 simple and easy to process.

[0061] In one embodiment, in combination with 2, Figure 4 and Figure 7The movable contact piece 122 is also provided with an abutment area, and the abutment area is used to abut against the touch-pressure assembly. The abutment area is located between the first end of the movable contact piece 122 and the deformation area 1221. The electromagnetic unit includes a support portion 142 and a coil 143 wound around the outside of the support portion 142, and the terminal of the coil 143 extends out of the housing 15 to facilitate connection with the power supply line. The support portion 142 is fixed in the housing 15, and the support portion 142 is provided with a through hole 1421 along the axial direction of the support portion 142.

[0062] The touch-pressure assembly includes a floating member 141 and a touch-pressure member 144. The floating member 141 includes a floating column 1411 and a floating plate 1412 connected to each other. Exemplarily, the floating plate 1412 includes two opposite side surfaces, and the end of the floating column 1411 is connected to one of the side surfaces of the floating plate 1412. The floating plate 1412 can be, for example, circular or square. The floating column 1411 is disposed in the through hole 1421 and can move along the axial direction of the through hole 1421, while the floating plate 1412 is located outside the through hole 1421. The orthographic projection of the through hole 1421 on the floating plate 1412 is located within the outer edge of the floating plate 1412. One end of the touch-pressure member 144 is sleeved on the floating column 1411 and is located between the support portion 142 and the floating plate 1412. The other end of the touch-pressure member 144 is used to abut against the abutment area.

[0063] In the third position, the floating plate 1412 presses the contact member 144 to make the contact member 144 contact the contact area. In the fourth position, the floating plate 1412 moves away from the contact member 144 to separate the contact member 144 from the movable contact piece 122. Figure 4 , Figure 6 and Figure 7 , the moving contact piece 122 is in the first free state as the initial state, the coil 143 generates electromagnetic force when powered on, attracts the floating column 1411 to move so as to drive the floating plate 1412 to move toward the direction close to the support portion 142, and the floating plate 1412 gradually presses the contact member 144 to move the contact member 144 from the fourth position to the third position, until it moves to the third position and the contact member 144 contacts the contact area. When the power is disconnected, the electromagnetic force disappears, and the floating member 141 gradually moves to reset, that is, the floating plate 1412 moves away from the support portion 142. Since the pressure acting on the contact member 144 disappears, the contact member 144 moves from the third position to the fourth position to separate from the moving contact piece 122.

[0064] With such a configuration, on the one hand, the structure of the electric drive assembly 14 is simple and easy to process. On the other hand, the floating member 141 and the supporting portion 142 can limit the contact and pressure member 144, thereby preventing the displacement or fall-off of the contact and pressure member 144 due to external force from affecting the normal driving of the moving contact piece 122, thereby effectively improving the timeliness of the contact or separation between the moving contact piece 122 and the stationary contact piece, thereby improving the reliability of the switch device 1.

[0065] In one embodiment, in combination Figure 4 , Figure 6 and Figure 7 The contact member 144 includes a first contact plate 1442 and a second contact plate 1443 connected by a rotating shaft 1441. The first contact plate 1442 is sleeved on the floating column 1411, and the second contact plate 1443 is used to abut against the abutting area. The rotating shaft 1441 is rotatably connected to the housing 15 so that the first contact plate 1442 and the second contact plate 1443 can rotate around the rotating shaft 1441. Exemplarily, the moving contact piece 122 is in the first free state as the initial state. The coil 143 generates an electromagnetic force in the energized state, attracting the floating column 1411 to move so as to drive the floating plate 1412 to move toward the support portion 142. During this process, the floating plate 1412 gradually applies pressure to the first touch plate 1442. Under the action of the rotating shaft 1441, the first touch plate 1442 and the second touch plate 1443 rotate from the fourth position to the third position until the floating plate 1412 presses the touch member 144 to make the first touch plate 1442 fit the end surface of the support portion 142. At this time, the second touch plate 1443 rotates to the third position. When the power is disconnected, the electromagnetic force disappears, and the floating member 141 gradually moves to reset, that is, the floating plate 1412 moves away from the support portion 142. Since the pressure on the first touch plate 1442 disappears, under the action of gravity, the second touch plate 1443 rotates from the third position to the fourth position to separate from the movable contact piece 122. During this process, the first touch plate 1442 and the second touch plate 1443 rotate synchronously.

[0066] Such a design makes the structure of the contact-pressure member 144 simple, and facilitates the electromagnetic unit to drive the contact-pressure assembly, thereby effectively improving the efficiency of driving the movable contact piece 122 to move, and further improving the reliability of the switch device 1.

[0067] In one embodiment, in combination Figure 3, the electromagnetic unit further includes an elastic member 145, which may be, for example, a spring, a torsion spring, etc. The elastic member 145 is disposed in the through hole 1421, and the elastic member 145 is used to provide an elastic force to the floating member 141 to move the floating plate 1412 in a direction away from the support portion 142. With such a configuration, on the one hand, when the power is disconnected and the electromagnetic force disappears, under the action of the elastic member 145, the floating plate 1412 moves in a direction away from the support portion 142, thereby causing the pressure member 144 to move to the fourth position. On the other hand, when the power is disconnected, the elastic member 145 can also support the floating member 141, thereby effectively preventing the floating member 141 from shifting and causing the pressure member 144 to malfunction, thereby improving the accuracy of the switch device 1 in controlling the circuit.

[0068] In one embodiment, in combination Figure 3 The housing 15 includes a first side plate 151 and a second side plate 152 opposite to each other. One end of the elastic member 145 is connected to the first side plate 151, and the other end of the elastic member 145 is connected to the floating column 1411. In the fourth position, the floating plate 1412 abuts against the second side plate 152. In this way, the second side plate 152 can limit the floating plate 1412, preventing the floating member 141 from slipping out of the through hole 1421 on the support portion 142 under the action of the elastic member 145, thereby further improving the reliability of the switch device 1.

[0069] Exemplarily, the description is given with the movable contact piece 122 being in the second free state as the initial state.

[0070] Combination Figure 4 When the movable contact piece 122 is in the second free state, the circuit is in an open state, and the slider 132 of the operating portion 13 is in the first position.

[0071] Combination Figure 4 and Figure 5 When the circuit needs to be turned on, the push rod 131 is pushed into the housing 15, and the push rod 131 pushes the slider 132 to move from the first position to the second position, driving the first end of the movable contact piece 122 to bend in the first direction, so that the movable contact piece 122 moves from the second free state to the critical state. Figure 5 and Figure 6 When in the critical state, the movable contact piece 122 located in the deformation area 1221 is deformed from the first surface 1222 to the second surface 1223 to the first surface 1222, so that the movable contact piece 122 deviates from the critical state and moves to the first free state until the movable contact point 121 on the movable contact piece 122 contacts the static contact point 111, thereby realizing the conduction of the circuit. In this process, the push rod 131 is driven to continue to extend into the housing 15.

[0072] Combination Figure 7, and then when the circuit needs to be disconnected, the coil 143 is energized, and the coil 143 generates an electromagnetic force when energized, and the electromagnetic force is greater than the elastic force generated by the elastic member 145, attracting the floating column 1411 to move so as to drive the floating plate 1412 to move toward the support portion 142. In this process, the floating plate 1412 gradually applies pressure to the first touch plate 1442, and under the action of the rotating shaft 1441, the first touch plate 1442 and the second touch plate 1443 rotate from the fourth position to the third position, until the floating plate 1412 presses the touch member 144 to make the first touch plate 1442 fit the end surface of the support portion 142, and at this time, the second touch plate 1443 rotates to the third position. During the rotation process, the second touch plate 1443 gradually abuts against the abutment area on the moving contact piece 122, driving the first end of the moving contact piece 122 to bend in the second direction, so that the moving contact piece 122 moves from the first free state to the critical state. At the same time, the moving contact point 121 on the moving contact piece 122 is separated from the static contact point 111, thereby disconnecting the circuit. Figure 4 , and then the power is disconnected, the electromagnetic force disappears, and under the action of the elastic member 145, the floating plate 1412 moves in a direction away from the support portion 142 until the floating member 141 is reset, that is, until the floating plate 1412 abuts against the second side plate 152. As the pressure acting on the first touch plate 1442 disappears, under the action of gravity, the second touch plate 1443 rotates from the third position to the fourth position to separate from the movable contact piece 122. In this process, the first touch plate 1442 and the second touch plate 1443 rotate synchronously.

[0073] Combination Figure 4 and Figure 7 , and when in the critical state, the movable contact piece 122 located in the deformation area 1221 changes from being concave from the second surface 1223 to the first surface 1222 to being concave from the first surface 1222 to the second surface 1223, so that the movable contact piece 122 deviates from the critical state and moves to the second free state. In the second free state, the movable contact point 121 and the static contact point 111 remain separated. In the process of the movable contact piece 122 moving from the first free state to the second free state, the movable contact piece 122 drives the slider 132 to move from the second position to the first position, and the push rod 131 gradually extends out of the housing 15. When the movable contact piece 122 is in the second free state, the operating part 13 is also reset. Exemplarily, the slider 132 can abut against the inner wall of the housing 15 when in the first position. In this way, the movable contact piece 122 can be limited by the operating part 13 to avoid the collision between the movable contact piece 122 and the housing 15 due to excessive movement range, thereby further improving the reliability of the switch device 1.

[0074] In one embodiment, in combination Figure 1 and Figure 2The stationary contact component 11 further includes a first fixing plate portion 112, which is fixed to the inner wall of the housing 15, and the stationary contact 111 is arranged on the first fixing plate portion 112, and the terminal of the first fixing plate portion 112 extends to the outside of the housing 15. In this way, the stationary contact 111 is fixed.

[0075] The movable contact component 12 further includes a second fixing plate portion 123, which is fixed to the inner wall of the housing 15, and the second end of the movable contact piece 122 is connected to the second fixing plate portion 123, and the wiring end of the second fixing plate portion 123 extends to the outside of the housing 15. In this way, not only the movable contact piece 122 is fixed, but also the deformation of the movable contact piece 122 is facilitated by fixing the second end of the movable contact piece 122.

[0076] In one embodiment, in combination Figure 1 The switch device 1 further includes a limiting structure 154, which is disposed in the housing 15. The limiting structure 154 is provided with a second slit 1541, and the deformation region 1221 of the movable contact piece 122 is disposed in the second slit 1541. The limiting structure 154 limits the position of the deformation region 1221 of the movable contact piece 122. On the one hand, the stability of the setting of the movable contact piece 122 is improved, and on the other hand, it is convenient to deform the deformation region 1221 under the action of the operating portion 13 and the contact-pressing member 144.

[0077] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0078] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A switch device, characterized in that: The switch device comprises: A stationary contact component, wherein the stationary contact component comprises a stationary contact; A moving contact component, the moving contact component comprising a moving contact, the moving contact component being configured to have a critical state, a first free state, and a second free state, wherein when switching from the critical state to the first free state, the moving contact moves in a direction close to the static contact to contact the static contact, and when switching from the critical state to the second free state, the moving contact moves in a direction away from the static contact, and in the second free state, the moving contact remains separated from the static contact; an operating portion, the operating portion being used to drive the movable contact component to deviate from the critical state to move toward one of the first free state and the second free state; An electric drive assembly is configured to drive the movable contact component to deviate from the critical state to move toward the other of the first free state and the second free state when powered on.

2. The switch device according to claim 1, characterized in that: The moving contact component also includes a moving contact piece, the moving contact is arranged on a first end of the moving contact piece, the moving contact piece includes the critical state, the first free state and the second free state, the operating part is connected to the moving contact piece to drive the moving contact piece to bend in a first direction so that the moving contact piece deviates from the critical state and moves to one of the first free state and the second free state, the electric drive component can abut against the moving contact piece to press the moving contact piece to bend in a second direction so that the moving contact piece deviates from the critical state and moves to the other of the first free state and the second free state, and the second direction is opposite to the first direction.

3. The switch device according to claim 2, characterized in that: The movable contact piece is provided with a deformation region, and in the critical state, the deformation region is used to bend the first end of the movable contact piece toward the first direction or the second direction.

4. The switch device according to claim 3, characterized in that: The moving contact piece includes a first surface and a second surface opposite to each other. When switching from the critical state to the first free state, the moving contact piece located in the deformation area changes from being concave from the first surface to the second surface to being concave from the second surface to the first surface. When switching from the critical state to the second free state, the moving contact piece located in the deformation area changes from being concave from the second surface to the first surface to being concave from the first surface to the second surface.

5. The switch device according to any one of claims 2 to 4, characterized in that: The switch device further comprises: The housing includes a stationary contact part, a movable contact part, an operating part and an electric drive assembly.

6. The switch device according to claim 5, characterized in that: A slide groove is provided in the housing, and the operating part comprises: A slider, the slider is slidably connected to the slide groove, and the slider is connected to the movable contact piece; A push rod, a first end of which is connected to the slider, and a second end of which extends out of the housing, the push rod being used to push the slider to move from the first position to the second position, so as to drive the movable contact piece to deviate from the critical state to move toward one of the first free state and the second free state; when the movable contact piece moves from the critical state to the other of the first free state and the second free state, the movable contact piece drives the slider to move from the second position to the first position, so as to reset the operating part.

7. The switch device according to claim 6, characterized in that: The slider is provided with a first slit, and the first end of the movable contact piece is provided in the first slit.

8. The switch device according to claim 5, characterized in that: The electric drive assembly comprises: A touch-pressure assembly, the touch-pressure assembly comprising a third position and a fourth position, wherein the touch-pressure assembly abuts against the movable contact piece at the third position, and the touch-pressure assembly is separated from the movable contact piece at the fourth position; The electromagnetic unit is used for providing electromagnetic force to the touch-pressure assembly in the power-on state, and the electromagnetic force is used for driving the touch-pressure assembly to move from the fourth position to the third position.

9. The switch device according to claim 8, characterized in that: The movable contact piece is also provided with an abutment area, the abutment area is located between the first end of the movable contact piece and the deformation area, the electromagnetic unit comprises a support portion and a coil wound around the outside of the support portion, the terminal of the coil extends out of the housing, the support portion is fixed in the housing, and the support portion is provided with a through hole along the axial direction of the support portion; The touch-pressure assembly comprises: A floating member, the floating member comprising a connected floating column and a floating plate, the floating column being disposed in the through hole and being movable along the axial direction of the through hole, and the orthographic projection of the through hole on the floating plate being located within the outer edge of the floating plate; A touch-pressure member, one end of which is sleeved on the floating column and located between the support portion and the floating plate, and the other end of which is used to abut against the abutment area. In the third position, the floating plate presses the touch-pressure member so that the touch-pressure member abuts against the abutment area. In the fourth position, the floating plate is away from the touch-pressure member so that the touch-pressure member is separated from the moving contact piece.

10. The switch device according to claim 9, characterized in that The touch-pressure member includes a first touch-pressure plate and a second touch-pressure plate connected by a rotating shaft, the first touch-pressure plate is sleeved on the floating column, the second touch-pressure plate is used to abut against the abutment area, and the rotating shaft is rotatably connected to the housing so that the first touch-pressure plate and the second touch-pressure plate can rotate around the rotating shaft.

11. The switch device according to claim 9, characterized in that The electromagnetic unit also includes: An elastic member is disposed in the through hole and is used for providing an elastic force to the floating member to make the floating plate move in a direction away from the supporting portion.

12. The switch device according to claim 11, characterized in that: The housing includes a first side plate and a second side plate opposite to each other, one end of the elastic member is connected to the first side plate, the other end of the elastic member is connected to the floating column, and in the fourth position, the floating plate abuts against the second side plate.

13. The switch device according to claim 5, characterized in that The stationary contact component further includes a first fixing plate portion, the first fixing plate portion is fixed to the inner wall of the housing, the stationary contact is arranged on the first fixing plate portion, and the wiring terminal of the first fixing plate portion extends to the outside of the housing; The moving contact component also includes a second fixing plate portion, which is fixed to the inner wall of the housing, the second end of the moving contact piece is connected to the second fixing plate portion, and the wiring end of the second fixing plate portion extends to the outside of the housing.

14. The switch device according to claim 5, characterized in that The switch device further comprises: A limiting structure is arranged in the shell, a second clamping gap is arranged on the limiting structure, and a deformation area of ​​the movable contact piece is arranged in the second clamping gap.

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