Switching device

Abstract

The utility model relates to a switching device, which comprises a contact assembly, a driving mechanism and an electric driving unit, and is characterized in that the contact assembly comprises a static contact and a movable contact which are oppositely arranged; the driving mechanism comprises a pushing piece, the pushing piece comprises a first position and a second position, the pushing piece enables the movable contact to be in contact with the static contact at the first position, and the pushing piece enables the movable contact to be separated from the static contact at the second position; the electric driving unit comprises a power-on state and a power-off state, and the electric driving unit can drive the driving mechanism in the power-on state to enable the pushing piece to move towards the first position and keep the pushing piece at the first position in the power-off state; the electric driving unit can drive the driving mechanism in the power-on state to enable the pushing piece to move towards the second position and keep the pushing piece at the second position in the power-off state. Therefore, not only can the energy consumption of the switching device be effectively reduced, but also the stability of state maintenance can be improved, so that the reliability of the switching device is effectively improved.

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, switching 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 switching devices in the related art have the problems of high power consumption and poor reliability. 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 contact assembly, wherein the contact assembly includes a static contact and a moving contact arranged opposite to each other; a drive mechanism, wherein the drive mechanism includes a pusher, wherein the pusher includes a first position and a second position, wherein in the first position, the pusher makes the moving contact contact with the static contact, and in the second position, the pusher separates the moving contact from the static contact; an electric drive unit, wherein the electric drive unit includes a power-on state and a power-off state, wherein the electric drive unit can drive the drive mechanism in the power-on state to move the pusher to the first position and maintain it in the first position in the power-off state, and wherein the electric drive unit can drive the drive mechanism in the power-on state to move the pusher to the second position and maintain it in the second position in the power-off state.

[0005] In some embodiments of the present disclosure, the moving contact is arranged between the static contact and the pushing member, and the driving mechanism also includes: a transmission assembly, which is in transmission connection with the pushing member, and the electric drive unit is arranged in the transmission assembly, and the electric drive unit provides electromagnetic force to the transmission assembly in the power-on state, and the electromagnetic force is used to drive the transmission assembly to drive the pushing member to move toward the moving contact. In the power-off state, the transmission assembly and the pushing member are transmitted to make the pushing member reach the first position and remain in the first position, or make the pushing member reach the second position and remain in the second position.

[0006] In some embodiments of the present disclosure, the transmission assembly includes: a first transmission member, a transmission space is provided in the first transmission member, a first matching portion is provided in the transmission space, and the electric drive unit is provided on the first transmission member; a second transmission member, the second transmission member is located in the transmission space and can be connected to the first transmission member in transmission, and the electromagnetic force is used to drive the second transmission member to move in the direction toward the moving contact; a second matching portion is provided on the second transmission member, and a third matching portion is provided on the pushing member, the second matching portion cooperates with the third matching portion to make the pushing member move toward the first position or the second position, and in the first position or the second position, the third matching portion cooperates with the first matching portion; an elastic member, and the elastic member is used to provide an elastic force to the pushing member to move away from the direction of the moving contact.

[0007] In some embodiments of the present disclosure, the first transmission member includes a cylindrical structure, the cylindrical structure includes a first end facing the pushing member, the cylindrical structure has a hollow cavity penetrating the first end, and the hollow cavity constitutes the transmission space; the first matching portion includes a plurality of first slide grooves arranged on the cylindrical wall of the cylindrical structure, and a plurality of card slot structures arranged on the first end, and the sliding direction of the plurality of first slide grooves is parallel to the axial direction of the cylindrical structure; the second transmission member includes a columnar structure, the columnar structure is located in the transmission space and can slide along the axial direction of the cylindrical structure, the columnar structure includes a second end facing the pushing member, the second matching portion includes a plurality of tooth structures arranged on the second end along the circumference of the columnar structure, the third matching portion includes a plurality of card block structures arranged on the outer surface of the pushing member along the circumference of the pushing member, the tooth structure can abut against the card block structure to push the pushing member to move, in the first position, the card block structure abuts against one of the plurality of card slot structures, and in the second position, the card block structure slides into one of the plurality of first slide grooves.

[0008] In some embodiments of the present disclosure, a plurality of protrusion structures are provided on the cylindrical wall of the cylindrical structure along the circumference of the cylindrical structure, and a gap is formed between two adjacent protrusion structures, the gap constitutes the first slide groove, and the outer circumferential surface of the second transmission member is attached to the protrusion structure; the protrusion structure extends outward from the transmission space toward the end surface of the pushing member, and the end surface includes a first inclined surface, a plane and a second inclined surface connected to each other, the plane is parallel to the axial direction of the cylindrical structure, the plane and the second inclined surface constitute the slot structure, and the angle between the first inclined surface and the radial surface of the cylindrical structure is greater than the angle between the second inclined surface and the radial surface of the cylindrical structure; the block structure includes a third inclined surface facing the first transmission member, the plane where the third inclined surface is located is parallel to the plane where the first inclined surface is located, and in the first position, the block structure is attached to the plane and abuts against the second inclined surface.

[0009] In some embodiments of the present disclosure, a second slide groove is provided on the raised structure, an extension direction of the second slide groove is parallel to an extension direction of the first slide groove, and a depth of the second slide groove is different from a depth of the first slide groove, and a plurality of sliders are provided on the columnar structure, and the plurality of sliders are alternately inserted into the first slide groove and the second slide groove.

[0010] In some embodiments of the present disclosure, the first transmission member also includes a fixing portion disposed on the outer circumferential surface of the cylindrical structure, the fixing portion includes a first fixing plate and a second fixing plate disposed opposite to each other, and the electric drive unit is fixed between the first fixing plate and the second fixing plate.

[0011] In some embodiments of the present disclosure, the pushing member includes: a support plate, the support plate including a first end face and a second end face opposite to each other; a pushing portion, arranged on the first end face, wherein in the first position, the pushing portion makes the moving contact contact with the static contact, the elastic member is sleeved on the pushing portion and connected to the first end face; a transmission portion, arranged on the second end face, and the third mating portion is arranged on the outer surface of the transmission portion.

[0012] In some embodiments of the present disclosure, the switching device also includes a shell, the contact assembly, the driving mechanism and the electric drive unit are all arranged in the shell, and the connection terminals of the static contact, the moving contact and the electric drive unit all extend to the outside of the shell.

[0013] In some embodiments of the present disclosure, the housing includes a first inner side wall and a second inner side wall and a third inner side wall connected to the first inner side wall, the first inner side wall and the second inner side wall are arranged opposite to each other, and the switch device also includes: a limiting structure, the limiting structure is arranged on the first inner side wall, the limiting structure includes a first side plate and a second side plate that are arranged opposite to each other, and the first side plate is opposite to the second inner side wall, and the second side plate is opposite to the third inner side wall, part of the transmission assembly is arranged between the first side plate and the second side plate, the contact assembly is arranged on the first inner side wall and is located between the first side plate and the second inner side wall, the first side plate is provided with a through hole for the pushing part of the pushing member to extend out, and the electric drive unit is arranged between the second side plate and the third inner side wall.

[0014] In some embodiments of the present disclosure, the switch device further includes: an operating portion, which can provide a thrust to the transmission assembly, and the thrust is used to push the transmission assembly to move the pushing member toward the first position or the second position.

[0015] In some embodiments of the present disclosure, the second transmission member of the transmission assembly extends outward from the housing in a direction away from the contact assembly, and the second transmission member located outside the housing constitutes the operating part.

[0016] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0017] The switch device provided by the present disclosure has a driving mechanism having a first position and a second position, and the electric drive unit has a power-on state and a power-off state. The electric drive unit can drive the driving mechanism in the power-on state to move the driving member to the first position and maintain it in the first position in the power-off state. The electric drive unit can also drive the driving mechanism in the power-on state to move the driving member to the second position and maintain it in the second position in the power-off state. The pushing member in the first position makes the moving contact contact with the static contact, and the pushing member in the second position separates the moving contact from the static contact. In this way, the electric drive unit only needs to be energized when switching 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, while no power is required to maintain the state in which the moving contact and the static contact are in contact or to maintain the state in which the moving contact and the static contact are separated, thereby reducing the power-on time of the switching device, thereby not only effectively reducing the energy consumption of the switching device, but also because the switching device of this embodiment does not rely on continuous energy input when maintaining the state in which the moving contact and the static contact are in contact or to maintain the state in which the moving contact and the static contact are separated, it can also improve the stability of state maintenance, thereby effectively improving the reliability of the switching device.

[0018] 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

[0019] 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.

[0020] Figure 1 is a schematic structural diagram of a switch device according to an exemplary embodiment;

[0021] Figure 2 is a schematic structural diagram of a switch device at a first angle according to an exemplary embodiment;

[0022] Figure 3 yes Figure 2 Sectional view along AA direction;

[0023] Figure 4 is an exploded schematic diagram of a switch device according to an exemplary embodiment;

[0024] Figure 5 is a schematic structural diagram of a first transmission member according to an exemplary embodiment;

[0025] Figure 6 is a schematic structural diagram of a first transmission member according to another exemplary embodiment;

[0026] Figure 7 is a structural schematic diagram of a first transmission member according to yet another exemplary embodiment;

[0027] Figure 8 yes Figure 7 Cross-sectional view along the BB direction;

[0028] Fig. 9 is a schematic diagram of a partial structure of a switch device when a pusher is in a first position according to an exemplary embodiment;

[0029] Fig.10 is a schematic diagram of a partial structure of a switch device when the second transmission member pushes the pushing member to move according to an exemplary embodiment;

[0030] Fig.11 is a schematic diagram of a partial structure of a switch device when a tooth structure and a block structure cooperate with each other according to an exemplary embodiment;

[0031] Fig.12 is a schematic diagram of a partial structure of a switch device when the pusher is in the second position according to an exemplary embodiment;

[0032] Fig.13is a schematic diagram of a partial structure of a switch device when the second transmission member pushes the pushing member to move according to another exemplary embodiment;

[0033] Fig.14 is a schematic diagram of a partial structure of a switch device when a tooth structure and a block structure cooperate with each other according to another exemplary embodiment;

[0034] Fig.15 is a schematic diagram of a partial structure of a switch device when the block structure contacts the second inclined surface according to an exemplary embodiment;

[0035] Fig.16 is a schematic structural diagram of a switch device according to another exemplary embodiment;

[0036] Fig.17 is a schematic structural diagram of a switch device at a second angle according to an exemplary embodiment;

[0037] Fig.18 yes Fig.17 Sectional view along CC direction.

[0038] In the figure:

[0039] 1- switch device; 101- static contact; 102- moving contact; 103- moving contact piece; 11- pushing member; 111- pushing part; 112- supporting plate; 113- transmission part; 114- block structure; 1141- third inclined plane; 13- first transmission member; 131- first slide groove; 132- protruding structure; 1321- first inclined plane; 1322- second inclined plane; 1323- plane; 1324- second slide groove; 13 3-first fixed plate; 134-second fixed plate; 14-second transmission member; 141-toothed structure; 1411-first side surface; 142-slider; 15-elastic member; 16-electric drive unit; 17-housing; 171-first inner wall; 172-second inner wall; 173-third inner wall; 174-limiting structure; 1741-first side plate; 1742-second side plate; 175-limiting groove; 18-operating part. DETAILED DESCRIPTION

[0040] 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.

[0041] For example, switching 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 switching devices in the related art have the problems of high power consumption and poor reliability.

[0042] Exemplarily, taking a 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. The relay is usually divided into a normally open relay, a normally closed relay, and a normally open normally closed relay. For a 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 realize the conduction of 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 is separated from the static contact, thereby realizing 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 a contact state.

[0043] 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.

[0044] 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.

[0045] From the foregoing, it can be seen that when the switch device in the related technology 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 not only leads to higher power consumption of the switch device, but also affects the stability of the switch device's control over the circuit due to unstable energy input, thereby causing poor reliability of the switch device.

[0046] In addition, the switching device in the related art relies on continuous energy input to maintain the circuit in a certain state, such as the input of electrical energy or the magnetic force of a permanent magnet, etc., which will not only affect the stability of the switching device due to the weakening of the magnetic strength of the permanent magnet in the switching device, but also affect the stability of the switching device's control over the circuit due to the unstable energy input, thereby resulting in poor reliability of the switching device.

[0047] In order to solve the above technical problems, the present disclosure provides a switch device, wherein a pusher of a driving mechanism has a first position and a second position, and an electric driving unit has a power-on state and a power-off state. The electric driving unit can drive the driving mechanism in the power-on state to move the pusher to the first position and maintain it in the first position in the power-off state. The electric driving unit can also drive the driving mechanism in the power-on state to move the pusher to the second position and maintain it in the second position in the power-off state. The pushing member in the first position makes the moving contact contact with the static contact, and the pushing member in the second position separates the moving contact from the static contact. In this way, the electric drive unit only needs to be energized when switching 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, while no power is required to maintain the state in which the moving contact and the static contact are in contact or to maintain the state in which the moving contact and the static contact are separated, thereby reducing the power-on time of the switching device, thereby not only effectively reducing the energy consumption of the switching device, but also because the switching device of this embodiment does not rely on continuous energy input when maintaining the state in which the moving contact and the static contact are in contact or to maintain the state in which the moving contact and the static contact are separated, it can also improve the stability of state maintenance, thereby effectively improving the reliability of the switching device.

[0048] 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 contact assembly, a drive mechanism and an electric drive unit 16. The contact assembly includes a stationary contact 101 and a moving contact 102 arranged opposite to each other. The drive mechanism includes a pusher 11, Fig. 9 and Fig.12 , the pushing member 11 includes a first position and a second position.

[0049] The electric drive unit 16 includes a power-on state and a power-off state. The electric drive unit 16 can drive the driving mechanism to move the pusher 11 to the first position in the power-on state and keep it in the first position in the power-off state. The pusher 11 in the first position makes the moving contact 102 contact the static contact 101, thereby realizing the conduction of the circuit in which the switch device 1 is located. For example, the electric drive unit 16 can drive the driving mechanism to move the pusher 11 directly to the first position in the power-on state, and the pusher 11 can be kept in the first position after the power is disconnected; or the electric drive unit 16 can drive the driving mechanism to move the pusher 11 to the extreme position in the power-on state, and when the power is disconnected, the pusher 11 can move from the extreme position to the first position and be kept in the first position.

[0050] The electric drive unit 16 can also drive the driving mechanism in the power-on state to move the pusher 11 to the second position and keep it in the second position in the power-off state. The pusher 11 in the second position separates the moving contact 102 from the static contact 101, thereby disconnecting the switch device 1. For example, the electric drive unit 16 can directly move the pusher 11 to the second position by driving the driving mechanism in the power-on state, and the pusher 11 can be kept in the second position after the power is disconnected; or the electric drive unit 16 can drive the driving mechanism in the power-on state to move the pusher 11 to the extreme position, and when the power is disconnected, the pusher 11 can move from the extreme position to the second position and be kept in the second position.

[0051] With such a design, the electric drive unit 16 only needs to be powered on when switching between the state where the moving contact 102 is in contact with the static contact 101 and the state where the moving contact 102 is separated from the static contact 101, and no power is required to maintain the state where the moving contact 102 is in contact with the static contact 101 or to maintain the state where the moving contact 102 is separated from the static contact 101, thereby reducing the power-on time of the switch device 1, thereby effectively reducing the energy consumption and temperature rise 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 102 is in contact with the static contact 101 or maintaining the state where the moving contact 102 is separated from the static contact 101, this can not only improve the stability of the switch device 1 control circuit in maintaining the current state, thereby effectively improving the reliability of the switch device 1, but also effectively reduce the cost.

[0052] It should be noted that the electric drive unit 16 can drive the driving mechanism to move the pushing member 11 to the first position or the second position when powered on. The movement path can be a linear path, a return path or a curved path, etc. There is no specific limitation on this, as long as the pushing member 11 can eventually reach the first position or the second position.

[0053] Combination Figure 2 , Figure 3 and Figure 4 In one embodiment, the moving contact 102 is arranged between the static contact 101 and the pusher 11, and the driving mechanism further includes a transmission assembly. The transmission assembly is connected to the pusher 11 in a transmission manner, and the electric drive unit 16 is arranged in the transmission assembly. The electric drive unit 16 provides electromagnetic force to the transmission assembly in a power-on state. For example, the electric drive unit 16 is a coil, and the coil generates magnetic force when it is powered on. The transmission assembly is driven to move by the electromagnetic force, thereby driving the pusher 11 to move toward the moving contact 102. After that, the power supply is disconnected, and in the power-off state, the transmission assembly and the pusher 11 are driven, so that the pusher 11 reaches the first position and remains in the first position. Alternatively, when the power supply is disconnected, in the power-off state, the transmission assembly and the pusher 11 are driven, so that the pusher 11 reaches the second position and remains in the second position. With such a setting form, it does not rely on continuous energy input when maintaining the state in which the moving contact 102 is in contact with the static contact 101 or maintaining the state in which the moving contact 102 is separated from the static contact 101, thereby improving the reliability of the switch device 1.

[0054] In one embodiment, in combination Figure 3 and Figure 4 The transmission assembly includes a first transmission member 13, a second transmission member 14 and an elastic member 15. A transmission space is provided in the first transmission member 13, a first matching portion is provided in the transmission space, and an electric drive unit 16 is provided on the first transmission member 13. The second transmission member 14 is located in the transmission space and can be transmission-connected with the first transmission member 13. Such a design facilitates the electromagnetic force generated by the electric drive unit 16 to act on the second transmission member 14, and then the second transmission member 14 is driven to move in the direction toward the moving contact 102 by the electromagnetic force.

[0055] The second transmission member 14 is provided with a second matching portion, the pushing member 11 is provided with a third matching portion, and the elastic member 15 always provides an elastic force to the pushing member 11 to move away from the moving contact 102. In the power-on state, the electromagnetic force is greater than the elastic force generated by the elastic member 15, and the second transmission member 14 is driven to move toward the moving contact 102 under the action of the electromagnetic force. At this time, the second matching portion on the second transmission member 14 cooperates with the third matching portion on the pushing member 11 to push the pushing member 11 to move toward the moving contact 102. When the movement reaches the extreme position, the power supply is disconnected, the electromagnetic force disappears, and the elastic member 15 provides the push member 11 with an elastic force moving away from the moving contact 102, so that the push member 11 moves in the direction away from the moving contact 102. At this time, under the cooperation of the third matching part and the second matching part, the second transmission member 14 is also pushed to move in the direction away from the moving contact 102 until the push member 11 reaches the first position or the second position, thereby realizing the conduction or disconnection of the circuit where the switch device 1 is located. In this process, the second transmission member 14 is reset accordingly. Exemplarily, the push member 11 reaches the first position or the second position. For example, the push member 11 is in the first position as the initial state for explanation. The first power is turned on, so that the push member 11 switches to the second position. The second power is turned on, so that the push member 11 switches to the first position again. And so on. Each time the power is turned on, the push member 11 alternately reaches the first position and the second position.

[0056] It is understandable that the limit position refers to the maximum position of the pusher 11 moving toward the moving contact 102 under the action of the electromagnetic force.

[0057] In the first position or the second position, the third matching portion on the push member 11 matches with the first matching portion on the first transmission member 13 to position the push member 11 at the current position, thereby maintaining the moving contact 102 in contact with or separated from the static contact 101, that is, maintaining the on or off state of the circuit in which the switch device 1 is located.

[0058] Such a setting not only makes the structure of the driving mechanism simple and easy to process, but also does not rely on continuous energy input when maintaining the contact state between the moving contact 102 and the stationary contact 101 or maintaining the separation state between the moving contact 102 and the stationary contact 101, thereby improving the reliability of the switching device 1.

[0059] In one embodiment, in combination Figure 3 , Figure 4 and Figure 5The first transmission member 13 includes a cylindrical structure, the cylindrical structure includes a first end facing the pusher 11, and the cylindrical structure has a hollow cavity penetrating the first end, and the hollow cavity constitutes a transmission space. The first matching portion includes a plurality of first slide grooves 131 arranged on the cylindrical wall of the cylindrical structure, and a plurality of card slot structures arranged on the first end, and the sliding direction of the plurality of first slide grooves 131 is parallel to the axial direction of the cylindrical structure.

[0060] The second transmission member 14 includes a columnar structure, which is located in the transmission space and can slide along the axial direction of the cylindrical structure. The columnar structure includes a second end facing the pusher 11, and the second matching portion includes a plurality of tooth structures 141 arranged on the second end along the circumference of the columnar structure.

[0061] The third matching portion includes a plurality of block structures 114 disposed on the outer surface of the pusher 11 along the circumference of the pusher 11. When the power is on, the toothed structure 141 abuts against the block structure 114 to push the pusher 11 to move. When the power is off, under the action of the elastic member 15, the toothed structure 141 abuts against the block structure 114 to push the second transmission member 14 to reset.

[0062] Since the plurality of slide grooves are located on the cylinder wall of the cylinder structure, and the plurality of slot structures are located on the first end of the cylinder structure, each slot structure is closer to the moving contact 102 than each first slide groove 131. Thus, when the block structure 114 abuts against one of the plurality of slot structures, the pusher 11 can be positioned at the first position, so that the moving contact 102 is in contact with the static contact 101 through the pusher 11, and the conduction of the circuit in which the switch device 1 is located is realized. When the block structure 114 slides into one of the plurality of first slide grooves 131, the pusher 11 can be positioned at the second position, so that the moving contact 102 is separated from the static contact 101 through the pusher 11, and the disconnection of the circuit in which the switch device 1 is located is realized.

[0063] Such a design makes the transmission mode between the transmission assembly and the pusher 11 simple, thereby making the structure of the switch device 1 simple and easy to process.

[0064] In one embodiment, in combination Figure 5 and Figure 6 Along the circumference of the cylindrical structure, a plurality of protrusion structures 132 are arranged on the cylindrical wall of the cylindrical structure, combined with Figure 7 and Figure 8 A gap is formed between two adjacent protrusion structures 132, and the gap constitutes the first slide groove 131. The outer peripheral surface of the second transmission member 14 is attached to the protrusion structure 132. With such a configuration, when the block structure 114 slides into the first slide groove 131, the block structure 114 is prevented from interfering with the second transmission member 14 to affect the normal movement of the pusher 11, thereby effectively ensuring the reliability of the switch device 1.

[0065] Combination Figure 6 The protruding structure 132 extends outward from the transmission space toward the end surface of the pusher 11, and the end surface includes a first inclined surface 1321, a plane 1323, and a second inclined surface 1322 connected to each other. The plane 1323 is parallel to the axial direction of the cylindrical structure. The plane 1323 and the second inclined surface 1322 form a slot structure. The angle between the first inclined surface 1321 and the radial surface of the cylindrical structure is greater than the angle between the second inclined surface 1322 and the radial surface of the cylindrical structure. The block structure 114 includes a third inclined surface 1141 facing the first transmission member 13. The plane 1323 where the third inclined surface 1141 is located is parallel to the plane 1323 where the first inclined surface 1321 is located. In the first position, the block structure 114 is in contact with the plane 1323 and abuts against the second inclined surface 1322.

[0066] Exemplarily, the description is given with the push member 11 being in the first position as the initial state.

[0067] Combination Fig. 9 When the pusher 11 is in the first position, the block structure 114 on the pusher 11 is in contact with the plane 1323 and abuts against the second inclined surface 1322. Since the outer surface of the second transmission member 14 is abutted against the protruding structure 132, the tooth structure 141 on the second transmission member 14 is also abutted against the protruding structure 132. Each tooth structure 141 of the second transmission member 14 includes a first side surface 1411 and a second side surface connected to each other, and the angle between the first side surface 1411 and the second side surface forms a tooth shape. Among them, the first side surface 1411 of a tooth structure 141 abuts against the third inclined surface 1141 of a block structure 114.

[0068] Combination Fig.10 When the circuit where the switch device 1 is located needs to be disconnected, the electric drive unit 16 is energized, and the electric drive unit 16 generates an electromagnetic force, which drives the second transmission member 14 to move toward the moving contact 102, thereby pushing the pusher 11 to move toward the moving contact 102. During the movement, the pusher 11 first moves linearly toward the moving contact 102 under the push of the second transmission member 14. When the third inclined surface 1141 is separated from the plane 1323, the pusher 11 is combined with the second transmission member 14 to move in a straight line toward the moving contact 102. Fig.10 and Fig.11, the third inclined surface 1141 will slide along the first side surface 1411 toward the intersection between the first side surface 1411 and the second side surface, and the pusher 11 will rotate along the first direction during the sliding process until the third inclined surface 1141 abuts against the intersection between the first side surface 1411 and the second side surface, at which time the orthographic projection of the third inclined surface 1141 of the block structure 114 on the radial surface of the first transmission member 13 intersects with the orthographic projection of the first inclined surface 1321 on the radial surface of the first transmission member 13. At the same time, under the action of the electromagnetic force, the second transmission member 14 pushes the pusher 11 to continue to move toward the moving contact 102 until it moves to the limit position, and the power is disconnected.

[0069] Combination Fig.10 , 11 and Fig.12 After the power is disconnected, the electromagnetic force disappears. Under the action of the elastic member 15, the pusher 11 pushes the second transmission member 14 to move in the direction away from the moving contact 102 until the third inclined surface 1141 of the block structure 114 contacts the first inclined surface 1321. During the continuous movement, the third inclined surface 1141 slides along the first inclined surface 1321. During the sliding process, the pusher 11 rotates again in the first direction. Fig.12 , until the block structure 114 slides into the first slide slot 131 to make the pusher 11 reach the second position, and the second transmission member 14 is reset accordingly. At this time, the third inclined surface 1141 of the block structure 114 abuts against the first side surface 1411 of the next toothed structure 141 on the second transmission member 14 along the rotation direction. Afterwards, the pusher 11 remains in the second position to maintain the circuit where the switch device 1 is located in the disconnected state.

[0070] Combination Fig.13 and 14When it is necessary to turn on the circuit where the switch device 1 is located, the electric drive unit 16 is energized again, and the electric drive unit 16 generates an electromagnetic force. Under the action of the electromagnetic force, the second transmission member 14 is driven to move toward the moving contact 102. During the movement, the pusher 11 first moves linearly toward the moving contact 102 under the push of the second transmission member 14. When the third inclined surface 1141 is disengaged from the first slide groove 131, the third inclined surface 1141 of the block structure 114 slides along the first side surface 1411 toward the intersection between the first side surface 1411 and the second side surface. During the sliding process, the pusher 11 rotates again along the first direction until the third inclined surface 1141 abuts against the intersection between the first side surface 1411 and the second side surface. At this time, the orthographic projection of the third inclined surface 1141 of the block structure 114 on the radial surface of the first transmission member 13 intersects with the orthographic projection of the second inclined surface 1322 adjacent to the first inclined surface 1321 along the rotation direction on the radial surface of the first transmission member 13. At the same time, under the action of the electromagnetic force, the second transmission member 14 pushes the pusher 11 to continue to move toward the moving contact 102 until it moves to the limit position and the power is disconnected.

[0071] Combination Fig.14 and Fig.15 After the power is disconnected, the electromagnetic force disappears. Under the action of the elastic member 15, the pusher 11 pushes the second transmission member 14 to move away from the moving contact 102 until the block structure 114 contacts the second inclined surface 1322. Fig.15 and Fig. 9 , the block structure 114 slides along the second inclined surface 1322, and during the sliding process, the pusher 11 rotates again along the first direction until the block structure 114 fits with the plane 1323, so that the pusher 11 reaches the first position, and the second transmission member 14 is reset accordingly. At this time, the third inclined surface 1141 of the block structure 114 abuts against the first side surface 1411 of the next toothed structure 141 on the second transmission member 14 along the rotation direction. Afterwards, the pusher 11 remains in the first position to maintain the circuit where the switch device 1 is located in the on state.

[0072] By analogy, the pusher 11 is alternately in the first position and the second position, thereby achieving contact or separation between the moving contact 102 and the stationary contact 101. With such a configuration, the transmission mode of the drive mechanism is simple and reliable, thereby improving the reliability of the switch device 1.

[0073] In one embodiment, in combination Figure 5 and Figure 6, a second slide groove 1324 is provided on the protruding structure 132, the extension direction of the second slide groove 1324 is parallel to the extension direction of the first slide groove 131, and the depth of the second slide groove 1324 is different from the depth of the first slide groove 131, that is, the depth of the second slide groove 1324 is less than the depth of the first slide groove 131. It should be noted that the depth of the first slide groove 131 refers to the depth of the first slide groove 131 in the radial direction of the cylindrical structure, and similarly, the depth of the second slide groove 1324 also refers to the depth of the second slide groove 1324 in the radial direction of the cylindrical structure.

[0074] Such a design can effectively prevent the block structure 114 from accidentally sliding into the second slide groove 1324 due to the same depth of the first slide groove 131 and the second slide groove 1324, thereby further improving the accuracy of circuit control and the reliability of the switch device 1. Figure 4 and Figure 5 A plurality of sliders 142 are disposed on the columnar structure, and the plurality of sliders 142 are alternately inserted into the first slide groove 131 and the second slide groove 1324. In this way, the second transmission member 14 can be limited so that the second transmission member 14 can only perform reciprocating linear motion along the axial direction of the first transmission member 13, thereby ensuring the transmission accuracy between the pusher 11 and further improving the reliability of the switch device 1.

[0075] In one embodiment, in combination Figure 3 and Figure 4 The first transmission member 13 further includes a fixing portion disposed on the outer circumferential surface of the cylindrical structure, the fixing portion includes a first fixing plate 133 and a second fixing plate 134 disposed opposite to each other, and the electric drive unit 16 is fixed between the first fixing plate 133 and the second fixing plate 134. Such a setting can effectively improve the stability of the setting of the electric drive unit 16, thereby ensuring the stability of the power transmission of the electric drive assembly, and further improving the reliability of the switch device 1.

[0076] In one embodiment, in combination Figure 1, the pusher 11 includes a support plate 112, a pusher portion 111 and a transmission portion 113. The support plate 112 includes a first end face and a second end face opposite to each other, the pusher portion 111 is arranged on the first end face, the transmission portion 113 is arranged on the second end face, and the third matching portion is arranged on the outer surface of the transmission portion 113. In the first position, the pusher portion 111 makes the moving contact 102 contact the static contact 101. Exemplarily, the contact assembly also includes a moving contact piece 103, which can be, for example, an elastic spring, and the moving contact 102 is arranged on the moving contact piece 103. When the pusher portion 111 is in the first position, the pusher portion 111 presses the moving contact piece 103 to bend it, thereby driving the moving contact 102 to contact the static contact 101. The elastic member 15 is sleeved on the pusher portion 111 and connected to the first end face, so that the elastic member 15 can provide elastic force to the pusher 11.

[0077] In one embodiment, in combination Figure 1 and Figure 2 The switch device 1 further includes a housing 17, and the contact assembly, the drive mechanism and the electric drive unit 16 are all arranged in the housing 17. By providing the housing 17, the various structural parts can be protected, thereby effectively improving the reliability and safety of the switch device 1. The connection terminals of the static contact 101, the moving contact 102 and the electric drive unit 16 are all extended to the outside of the housing 17, so as to facilitate the connection of the electric drive unit 16, the moving contact 102 and the static contact 101 with the circuit.

[0078] In one embodiment, in combination Figure 1 The housing 17 includes a first inner wall 171 and a second inner wall 172 and a third inner wall 173 connected to the first inner wall 171 . The first inner wall 171 and the second inner wall 172 are arranged opposite to each other.

[0079] The switch device 1 further includes a limiting structure 174, which is disposed on the first inner side wall 171. The limiting structure 174 includes a first side plate 1741 and a second side plate 1742 which are disposed opposite to each other, and the first side plate 1741 is opposite to the second inner side wall 172, and the second side plate 1742 is opposite to the third inner side wall 173. Part of the transmission assembly is disposed between the first side plate 1741 and the second side plate 1742. For example, the first fixing plate 133 and the second fixing plate 134 of the transmission assembly are disposed between the second side plate 1742 and the third inner side wall 173, and the first fixing plate 133 is fitted with the second side plate 1742, and the second fixing plate 134 is fitted with the third inner side wall 173. In this way, the transmission assembly can be limited.

[0080] The structure of the transmission assembly from the first fixed plate 133 to the end facing the moving contact 102 is arranged between the first side plate 1741 and the second side plate 1742. The second side plate 1742 is provided with a groove or a through hole adapted to the transmission assembly. The electric drive unit 16 is arranged between the second side plate 1742 and the third inner side wall 173. Figure 4 At least one limiting groove 175 is also provided on the inner wall of the housing 17, and the corner portions of the first fixing plate 133 and / or the second fixing plate 134 are inserted into the limiting groove 175, thereby enhancing the limiting effect on the transmission component, improving the stability of the transmission component setting, and thus improving the reliability of the switch device 1.

[0081] The contact assembly is arranged on the first inner wall 171 and is located between the first side plate 1741 and the second inner wall 172. The first side plate 1741 is provided with a through hole for the pushing portion 111 of the pushing member 11 to extend out, so that the pushing member 11 can drive the moving contact 102 to contact the static contact 101.

[0082] Such a design makes the structure of the switch device 1 more compact, which is helpful to reduce the volume of the switch device 1.

[0083] In one embodiment, in combination Figure 1 One end of the elastic member 15 is connected to the support plate 112 of the push member 11 , and the other end of the elastic member 15 is connected to the first side plate 1741 , so that the setting of the elastic member 15 is convenient.

[0084] When the electric drive unit 16 cannot be powered, in order to ensure the normal use of the switch device 1, in one embodiment, Fig.16 , the switch device 1 also includes an operating part 18, which can provide a thrust to the transmission assembly, and the thrust is used to push the transmission assembly to move the pusher 11 to the first position or the second position, thereby adjusting the contact or separation of the moving contact 102 and the static contact 101. Exemplarily, the switch device 1 of this embodiment can be applied to a smart door lock, and the switch device 1 can control the locking and unlocking of the smart door lock. When the smart door lock is shut down due to low power, in order to prevent the user from being unable to open the door lock, the operating part 18 can be manually operated to provide a thrust to the transmission assembly to unlock the smart door lock. The manually operated operating part 18 can be, for example, a user directly touching the operating part 18 and operating it, or the user can use the case, door handle and other structures on the smart door lock to push, rotate and other operations on the operating part 18.

[0085] In this embodiment, by setting up the operating unit 18, manual operation or linkage with other devices is realized, avoiding the inability to control the contact and separation between the moving contact 102 and the static contact 101 due to the inability to supply power to the electric drive unit 16, thereby effectively improving the user experience.

[0086] In one embodiment, in combination Fig.17 and Fig.18 The second transmission member 14 of the transmission assembly extends out of the housing 17 in a direction away from the contact assembly, and the second transmission member 14 outside the housing 17 constitutes the operating portion 18. With such a configuration, the switch device 1 has a simple structure and is easy to process and assemble.

[0087] 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.

[0088] 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 contact assembly, the contact assembly comprising a stationary contact and a moving contact arranged relatively to each other; A driving mechanism, the driving mechanism comprising a pushing member, the pushing member comprising a first position and a second position, in the first position, the pushing member makes the moving contact contact with the static contact, and in the second position, the pushing member makes the moving contact separate from the static contact; An electric drive unit, the electric drive unit includes a power-on state and a power-off state, the electric drive unit can drive the drive mechanism in the power-on state to move the pusher to the first position and maintain it in the first position in the power-off state, and the electric drive unit can drive the drive mechanism in the power-on state to move the pusher to the second position and maintain it in the second position in the power-off state.

2. The switch device according to claim 1, characterized in that: The moving contact is arranged between the static contact and the pushing member, and the driving mechanism further comprises: A transmission assembly, wherein the transmission assembly is in transmission connection with the pushing member, the electric drive unit is arranged in the transmission assembly, and the electric drive unit provides electromagnetic force to the transmission assembly in the power-on state, and the electromagnetic force is used to drive the transmission assembly to drive the pushing member to move toward the moving contact point. In the power-off state, the transmission assembly and the pushing member are transmitted to make the pushing member reach the first position and remain in the first position, or make the pushing member reach the second position and remain in the second position.

3. The switch device according to claim 2, characterized in that: The transmission assembly comprises: a first transmission member, wherein a transmission space is provided in the first transmission member, a first matching portion is provided in the transmission space, and the electric drive unit is provided on the first transmission member; a second transmission member, the second transmission member is located in the transmission space and can be transmission-connected with the first transmission member, the electromagnetic force is used to drive the second transmission member to move in the direction toward the moving contact; a second matching portion is provided on the second transmission member, and a third matching portion is provided on the pushing member, the second matching portion matches with the third matching portion to make the pushing member move toward the first position or the second position, and the third matching portion matches with the first matching portion in the first position or the second position; An elastic member is used to provide an elastic force to the pushing member to move away from the moving contact.

4. The switch device according to claim 3, characterized in that: The first transmission member comprises a cylindrical structure, the cylindrical structure comprises a first end facing the pushing member, the cylindrical structure has a hollow cavity penetrating the first end, and the hollow cavity constitutes the transmission space; The first matching portion includes a plurality of first sliding grooves arranged on the cylinder wall of the cylinder structure, and a plurality of clamping groove structures arranged on the first end, and the sliding directions of the plurality of first sliding grooves are parallel to the axial direction of the cylinder structure; The second transmission member includes a columnar structure, the columnar structure is located in the transmission space and can slide along the axial direction of the cylindrical structure, the columnar structure includes a second end facing the pusher, and the second matching portion includes a plurality of tooth structures arranged on the second end along the circumference of the columnar structure. The third mating portion includes a plurality of block structures arranged on the outer surface of the pushing member along the circumference of the pushing member, the toothed structure can abut against the block structure to push the pushing member to move, in the first position, the block structure abuts against one of the plurality of slot structures, and in the second position, the block structure slides into one of the plurality of first slots.

5. The switch device according to claim 4, characterized in that: Along the circumference of the cylindrical structure, a plurality of protrusion structures are arranged on the cylindrical wall of the cylindrical structure, a gap is formed between two adjacent protrusion structures, the gap constitutes the first slide groove, and the outer peripheral surface of the second transmission member is attached to the protrusion structure; The protrusion structure extends outward from the transmission space toward the end surface of the pusher, the end surface includes a first inclined surface, a plane and a second inclined surface connected to each other, the plane is parallel to the axial direction of the cylindrical structure, the plane and the second inclined surface form the slot structure, and the angle between the first inclined surface and the radial surface of the cylindrical structure is greater than the angle between the second inclined surface and the radial surface of the cylindrical structure; The block structure includes a third inclined surface facing the first transmission member, and a plane where the third inclined surface is located is parallel to a plane where the first inclined surface is located. In the first position, the block structure is in contact with the plane and abuts against the second inclined surface.

6. The switch device according to claim 5, characterized in that: A second slide groove is arranged on the raised structure, the extension direction of the second slide groove is parallel to the extension direction of the first slide groove, and the depth of the second slide groove is different from the depth of the first slide groove. A plurality of sliders are arranged on the columnar structure, and the plurality of sliders are alternately inserted into the first slide groove and the second slide groove.

7. The switch device according to claim 4, characterized in that: The first transmission member further includes a fixing portion disposed on the outer circumferential surface of the cylindrical structure, the fixing portion includes a first fixing plate and a second fixing plate that are oppositely disposed, and the electric drive unit is fixed between the first fixing plate and the second fixing plate.

8. The switch device according to claim 3, characterized in that: The pusher comprises: A support plate, the support plate comprising a first end surface and a second end surface opposite to each other; A pushing portion, disposed on the first end surface, wherein at the first position, the pushing portion makes the moving contact contact the static contact, and the elastic member is sleeved on the pushing portion and connected to the first end surface; The transmission part is arranged on the second end surface, and the third matching part is arranged on the outer surface of the transmission part.

9. The switch device according to any one of claims 2 to 8, characterized in that: The switch device also includes a shell, the contact assembly, the drive mechanism and the electric drive unit are all arranged in the shell, and the static contact, the moving contact and the connection terminals of the electric drive unit are all extended to the outside of the shell.

10. The switch device according to claim 9, characterized in that The housing comprises a first inner side wall and a second inner side wall and a third inner side wall connected to the first inner side wall, the first inner side wall and the second inner side wall are arranged opposite to each other, and the switch device further comprises: A limiting structure, wherein the limiting structure is arranged on the first inner side wall, the limiting structure includes a first side plate and a second side plate arranged opposite to each other, and the first side plate is opposite to the second inner side wall, and the second side plate is opposite to the third inner side wall, part of the transmission assembly is arranged between the first side plate and the second side plate, the contact assembly is arranged on the first inner side wall and is located between the first side plate and the second inner side wall, a through hole is arranged on the first side plate for the pushing part of the pushing member to extend out, and the electric drive unit is arranged between the second side plate and the third inner side wall.

11. The switch device according to claim 9, characterized in that The switch device further comprises: An operating part, wherein the operating part can provide a thrust to the transmission assembly, and the thrust is used to push the transmission assembly to move the pushing member toward the first position or the second position.

12. The switch device according to claim 11, characterized in that The second transmission member of the transmission assembly extends out of the housing in a direction away from the contact assembly, and the second transmission member located outside the housing constitutes the operating part.

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