An electric switch

Abstract

The application provides an electric switch, which comprises a shell, an actuating part, a moving contact holder, a spring, a locking mechanism, a signal switch and a contact switch, the actuating part is reciprocally movable; the moving contact holder is provided with a clamping part, the spring is arranged on the moving contact holder and is adapted to be compressed and accumulated energy with the movement of the actuating part; the locking mechanism has two locking parts, the locking parts are adapted to reciprocally move in the vertical direction in the mounting cavity with the movement of the actuating part to prevent or release the prevention of the clamping part; the electric brush of the signal switch is arranged on the moving contact holder; the moving contact point of the contact switch is arranged on the moving contact holder; when the actuating part is driven to move, the spring is compressed and accumulated energy, then the energy is released to move the moving contact holder, and the contact switch and the signal switch are instantaneously connected or disconnected. Therefore, the service life of the switch can be improved, the arrangement position of the signal switch is diversified, and the market demand can be met.

Description

Technical Field

[0001] This invention relates to the technical field of electrical switches, and particularly to an electrical switch. Background Technology

[0002] An electric switch is a type of electrically operated switch, generally used to control the starting and stopping of power tools. It is an important triggering component in mechanical devices. An electric switch has contact switches that can handle large currents and signal switches that can handle low currents.

[0003] In related technologies, electrical switches employ a spring-loaded mechanism located in the center of the switch's interior. This spring not only provides lateral force to activate the mechanism but also generates a significant longitudinal force, transmitting positive pressure to the moving contact component, leading to severe wear on the sliding parts of the mechanism. Furthermore, as the swing angle increases after the spring's jump, the lateral force also increases, resulting in greater impact force between the contacts and more pronounced bouncing. The resulting arcing can easily burn out the contacts. During operation, the spring repeatedly twists and oscillates, leading to fatigue and breakage, thus reducing its lifespan. Moreover, the switch's locking mechanism also moves longitudinally, applying pressure to the tail of the mechanism, causing it to swing up and down. This results in the moving and stationary contacts rubbing against each other during contact, affecting contact lifespan. For signal switches, the placement options are limited, and the brushes move up and down, making the structure more complex and requiring components such as stop brackets. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the aforementioned technologies. Therefore, one object of the present invention is to provide an electrical switch that can improve the switch's lifespan and diversify the arrangement of signal switches to make rational use of space.

[0005] To achieve the above objectives, the present invention, in a first aspect, provides a housing comprising a mounting cavity defined within the housing, wherein the mounting cavity is provided with an actuator, a movable contact, a snap-action elastic element, a locking mechanism, a contact switch, and a signal switch.

[0006] The actuator is adapted to reciprocate horizontally within the mounting cavity;

[0007] The movable contact frame is provided with a locking part;

[0008] The spring-loaded elastic element is disposed on the moving contact frame and is adapted to be compressed and focused as the actuator moves;

[0009] The locking mechanism has two locking members, which are adapted to reciprocate vertically within the mounting cavity as the actuator moves to prevent or release the locking portion.

[0010] The brush of the signal switch is mounted on the moving contact frame;

[0011] The moving contact of the contact switch is disposed on the moving contact frame;

[0012] When the actuator moves, one locking member prevents the locking part from moving, the snap-action elastic member compresses and accumulates energy, driving the actuator to move continuously. The locking member releases its obstruction of the locking part, and the other locking member prevents the locking part from moving. The snap-action elastic member snaps and releases energy to drive the moving contact frame to move. The brush slides on the circuit board to turn the signal switch on or off. The moving contact contacts or separates from the stationary contact to turn the contact switch on or off.

[0013] According to an embodiment of the present invention, in the initial state of the electrical switch, the snap-action elastic element and the locking element do not perform snap-action or locking functions. The actuator drives the moving contact to move and contact one of the locking elements, at which point the locking element begins to lock the moving contact. As the actuator continues to move, the snap-action elastic element mounted on the moving contact is compressed and accumulates energy, while the actuator unlocks the locking element until the critical unlocking position. After the moving contact is unlocked, the snap-action elastic element releases instantaneously, and the moving contact moves rapidly, allowing the contact switch and signal switch to be connected instantaneously. At this time, the other locking element locks the moving contact again, ensuring reliable connection of the contact switch and preventing contact bounce and the phenomenon of partial connection caused by malfunction, thus preventing contact burn-out and improving switch life. When the actuator is driven to reset, the snap-action elastic element performs a reverse snap-action action, causing the switch to open or close instantaneously. The snap-action elastic element generates a lateral snap-action force, with no longitudinal force, unlike the oblique snap-action force of traditional switches of the same type; the signal switch can be arranged at the front or rear end of the bottom of the mounting cavity to make reasonable use of space.

[0014] In addition, the electrical switch proposed in the above embodiments of the present invention may also have the following additional technical features:

[0015] According to an embodiment of the present invention, the actuator includes a driving part and a abutting part. The driving part is inserted into the movable contact frame and compresses the snap-action elastic element as the actuator moves, so that the snap-action elastic element accumulates energy. The abutting part is adapted to press against the locking member and drive the locking member to release its obstruction of the locking part.

[0016] Furthermore, the spring-loaded elastic element includes a first spring and a second spring disposed on both sides of the drive unit, wherein the first spring is adapted to be compressed and charged by one side of the drive unit, and the second spring is adapted to be compressed and charged by the other side of the drive unit.

[0017] Optionally, the locking member includes a locking part, an unlocking part, and a reset part. One end of the reset part abuts against the mounting cavity to form a reset force that drives the reset part to move in the vertical direction. The reset force causes the locking part to prevent the locking part from moving to restrict the movement of the moving contact frame. The unlocking part is adapted to be pressed by the actuator to overcome the reset force of the reset part and facilitate the locking part to disengage from the locking part.

[0018] Optionally, the circuit board is mounted in the mounting cavity via a first terminal, and the stationary contact is mounted in the mounting cavity via a second terminal.

[0019] Furthermore, the circuit board and the first terminal are electrically connected by an elastic element or riveted together.

[0020] Furthermore, both the first terminal and the second terminal are provided with countersunk holes, and screws are locked into the countersunk holes to connect the first terminal and the second terminal to an external conductor.

[0021] Optionally, the movable contact frame is provided with a first mounting groove and a second mounting groove on both sides of the locking part, the brush is disposed in the first mounting groove, and the movable contact is disposed in the second mounting groove.

[0022] In a second aspect, the present invention provides an electrical switch comprising a housing, wherein a mounting cavity is defined within the housing, and the mounting cavity is provided with an actuator, a moving contact, a snap-action elastic element, a locking mechanism, a contact switch, and a signal switch.

[0023] The actuator is adapted to reciprocate horizontally within the mounting cavity;

[0024] The movable contact frame is provided with a locking part;

[0025] The spring-loaded elastic element is disposed on the moving contact frame and is adapted to be compressed and focused as the actuator moves;

[0026] The locking mechanism has two locking members, which are adapted to reciprocate vertically within the mounting cavity as the actuator moves to prevent or release the locking portion.

[0027] The brush of the signal switch is connected to the actuator so that the movement of the actuator drives the brush to move.

[0028] The moving contact of the contact switch is disposed on the moving contact frame;

[0029] When the actuator moves, one locking member prevents the locking part from moving, the snap-action elastic member compresses and accumulates energy, driving the actuator to move continuously. The locking member releases its obstruction of the locking part, and the other locking member prevents the locking part from moving. The snap-action elastic member snaps and releases energy, driving the moving contact frame to move. The moving contact contacts or separates from the stationary contact to turn the contact switch on or off. The brush slides on the circuit board to turn the signal switch on or off.

[0030] According to an embodiment of the present invention, in the initial state of the electrical switch, the snap-action elastic element and the locking element do not perform snap-action or locking functions. The actuator drives the moving contact to move and contact one of the locking elements, at which point the locking element begins to lock the moving contact. As the actuator continues to move, the snap-action elastic element mounted on the moving contact is compressed and accumulates energy, while the actuator unlocks the locking element until it reaches the critical unlocking position. After the moving contact is unlocked, the snap-action elastic element releases instantaneously, and the moving contact moves rapidly, allowing the contact switch to be instantly turned on. At this time, the other locking element locks the moving contact again, ensuring reliable contact switching and preventing contact bounce and the phenomenon of partial connection caused by malfunction, thus preventing contact burn-out and improving switch life. When the actuator is driven to reset, the snap-action elastic element performs a reverse snap-action action, causing the switch to be instantly turned off or on. The snap-up force generated by this snap-up elastic element is a lateral force, with no longitudinal force, which is different from the oblique snap-up force of traditional switches of the same type; then, the signal switch controls the generation of the signal by moving the actuator, which can be arranged at the rear end of the top of the mounting cavity to make reasonable use of space.

[0031] Optionally, the housing is provided with a groove, the actuator is provided with an actuation groove, the brush is disposed on a brush holder, the brush holder is mounted on the groove and inserted into the actuation groove so as to drive the brush holder to slide on the groove through the actuation groove.

[0032] Optionally, the circuit board is mounted on the housing via hooks and sealed with resin.

[0033] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of an electric switch according to Embodiment 1 of the present invention;

[0035] Figure 2 This is an exploded view of an electrical switch according to Embodiment 1 of the present invention;

[0036] Figure 3 This is a schematic diagram of the internal components of an electric switch according to Embodiment 1 of the present invention;

[0037] Figure 4 This is a schematic diagram of the structure of the moving contact frame according to Embodiment 1 of the present invention;

[0038] Figure 5 This is a schematic diagram of the assembly of the brush, the snap-fit ​​elastic element and the moving contact frame according to Embodiment 1 of the present invention.

[0039] Figure 6 This is a schematic diagram from another perspective of the assembly of the brush, the snap-fit ​​elastic element, and the moving contact frame according to Embodiment 1 of the present invention;

[0040] Figure 7 This is a schematic diagram of the locking component according to Embodiment 1 of the present invention;

[0041] Figure 8 This is a schematic diagram of the actuator according to Embodiment 1 of the present invention;

[0042] Figure 9 This is a cross-sectional view of some components of an electric switch according to Embodiment 1 of the present invention;

[0043] Figure 10 This is a schematic diagram of the initial state of an electrical switch according to Embodiment 1 of the present invention;

[0044] Figure 11 This is a schematic diagram of the process state one of the electric switch according to Embodiment 1 of the present invention;

[0045] Figure 12 This is a schematic diagram of the second process state of the electric switch according to Embodiment 1 of the present invention;

[0046] Figure 13 This is a schematic diagram of the process state three of the electric switch according to Embodiment 1 of the present invention;

[0047] Figure 14 This is a schematic diagram of the process state four of the electric switch according to Embodiment 1 of the present invention;

[0048] Figure 15 This is a schematic diagram of the process state five of the electric switch according to Embodiment 1 of the present invention;

[0049] Figure 16 This is a schematic diagram of the process state six of the electric switch according to Embodiment 1 of the present invention;

[0050] Figure 17 This is a schematic diagram of the process state seven of the electric switch according to Embodiment 1 of the present invention;

[0051] Figure 18 This is a schematic diagram of the process state eight of the electric switch according to Embodiment 1 of the present invention;

[0052] Figure 19This is a schematic diagram of the structure of an electric switch according to Embodiment 2 of the present invention;

[0053] Figure 20 This is an exploded view of an electrical switch according to Embodiment 2 of the present invention;

[0054] Figure 21 This is a schematic diagram of some components of an electric switch according to Embodiment 2 of the present invention;

[0055] Figure 22 This is a schematic diagram of the initial state of the electric switch according to Embodiment 2 of the present invention;

[0056] Figure 23 This is a schematic diagram of the process state one of the electric switch according to Embodiment 2 of the present invention;

[0057] Figure 24 This is a schematic diagram of the second process state of the electric switch according to Embodiment 2 of the present invention;

[0058] Figure 25 This is a schematic diagram of the process state three of the electric switch according to Embodiment 2 of the present invention;

[0059] Figure 26 This is a schematic diagram of the process state four of the electric switch according to Embodiment 2 of the present invention;

[0060] Figure 27 This is a schematic diagram of the process state five of the electric switch according to Embodiment 2 of the present invention;

[0061] Figure 28 This is a schematic diagram of the process state six of the electric switch according to Embodiment 2 of the present invention;

[0062] Figure 29 This is a schematic diagram of the process state seven of the electric switch according to Embodiment 2 of the present invention;

[0063] Figure 30 This is a schematic diagram of the process state eight of the electric switch according to Embodiment 2 of the present invention;

[0064] Explanation of reference numerals in the attached figures:

[0065] Housing 100, groove 101, sliding hole 1011, hook 1012, support surface 1013, resin 1014;

[0066] Actuator 200, drive unit 201, abutment unit 202, reset element 203, third mounting slot 204, actuation slot 205;

[0067] Moving contact frame 300, receiving space 301, first abutment surface 3011, second abutment surface 3012, third abutment surface 3013, fourth abutment surface 3014, strip hole 3015, locking part 302, first mounting groove 304, second mounting groove 305, contact compression spring 306;

[0068] 400 spring-loaded elastic element, 401 first spring, 402 second spring;

[0069] First locking component 500;

[0070] Second locking element 600;

[0071] Signal switch 700, brush 701, circuit board 702, limit hole 7021, first terminal 703, first countersunk hole 7031, elastic element 704, brush holder 705, protrusion 7051;

[0072] Contact switch 800, moving contact 801, stationary contact 802, second terminal 803, second countersunk hole 8031;

[0073] Button 900. Detailed Implementation

[0074] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0075] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the invention to those skilled in the art.

[0076] Example 1

[0077] The following is in conjunction with the appendix Figures 1-18 The implementation of an electric switch provided by the present invention will be described in detail. According to an embodiment of the present invention, the electric switch includes a housing 100, and a mounting cavity is defined within the housing 100. The mounting cavity is provided with an actuator 200, a moving contact 300, a snap-action elastic element 400, a first locking element 500, a second locking element 600, a contact switch 800, and a signal switch 700.

[0078] Specifically, the actuator 200 is adapted to reciprocate horizontally within the mounting cavity. The actuator 200 defines a drive portion 201 and abutment portion 202. The movable contact frame 300 defines a receiving space 301 and a locking portion 302. The snap-fit ​​elastic member 400 is disposed within the receiving space 301. The drive portion 201 is inserted into the receiving space 301 and compresses the snap-fit ​​elastic member 400 as the actuator 200 moves, thereby concentrating energy in the snap-fit ​​elastic member 400. In other words, when the actuator 200 is driven to reciprocate horizontally, the drive portion 201 on the actuator 200 moves within the receiving space 301 and can contact the snap-fit ​​elastic member 400, thereby compressing and concentrating energy in the snap-fit ​​elastic member 400.

[0079] The first locking member 500 and the second locking member 600 are spaced apart and opposite to each other, each defining a locking part a, an unlocking part b, and a reset part c. One end of the reset part c abuts against the mounting cavity to form a reset force that drives the reset part c to move vertically. The reset force causes the locking part a to prevent the locking part 302 from moving, thus restricting the movement of the movable contact frame 300. The unlocking part b is adapted to be pressed by the abutment part 202 to overcome the reset force of the reset part c and facilitate the locking part a to disengage from the locking part 302. When one locking part a prevents the locking part 302 from moving, the other... Locking part a disengages from locking part 302; it can be understood that when the first locking member 500 locks the movable contact 200, the reset force of the reset part c1 of the first locking member 500 causes its locking part a1 to block the locking part 302, at which time the second locking member 600 disengages from the locking part 302; when the second locking member 600 locks the movable contact 200, the reset force of the reset part c2 of the second locking member 600 causes its locking part a2 to block the locking part 302, at which time the first locking member 500 disengages from the locking part 302.

[0080] The signal switch 700 includes a brush 701 and a circuit board 702. The circuit board 702 is disposed in the mounting cavity, and the brush 701 is disposed on the moving contact frame 300. The contact switch 800 includes a moving contact 801 and a stationary contact 802. The stationary contact 802 is disposed in the mounting cavity, and the moving contact 801 is disposed on the moving contact frame 300.

[0081] When the actuator 200 moves, the drive part 201 moves, causing the snap-spring elastic member 400 to compress and accumulate energy. The abutment part 202 moves from one of the unlocking parts b to another unlocking part b and presses against the other unlocking part b, causing the locking part a corresponding to the other unlocking part b to disengage from the locking part 302. The snap-spring elastic member 400 snaps and releases energy, driving the moving contact frame 300 to move. The brush 701 slides on the circuit board 702 to turn the signal switch 700 on or off. The moving contact 801 contacts or separates from the stationary contact 802 to turn the contact switch 800 on or off. In other words, when the actuator 200 moves, its driving part 201 also moves, and its abutting part 202 also moves. The driving part 201 first compresses and gathers energy on the snap-action elastic member 400. At this time, the locking part 302 can abut against the locking part a. When the actuator 200 continues to move, the abutting part 202 can press against the unlocking part b, causing the locking part a to disengage from the locking part 302. At this time, the moving contact 300 is released from restriction, the snap-action elastic member 400 will snap and release energy, and drive the moving contact 300 to move. The signal switch 700 and the contact switch 800 provided in the moving contact 300 and the mounting cavity will be connected or disconnected instantly.

[0082] Therefore, in the electric switch according to the embodiment of the present invention, when the switch is in the initial state, the snap-action elastic element 400 and the locking element do not perform snap-action and locking functions. The actuator 200 drives the moving contact 300 to move to contact with the first locking element 500. At this time, the first locking element 500 begins to lock the moving contact 300. The actuator 200 continues to move, unlocking the first locking element 500 until the critical unlocking position. At the same time, the snap-action elastic element 400 installed on the moving contact 300 is compressed and accumulates energy under force. After the moving contact 300 is unlocked, the snap-action elastic element 400 is released instantaneously, and the moving contact 300 moves quickly, which can make the signal switch 700 and the contact switch 800 connect instantaneously. At this time, the second locking element 600 locks the moving contact 300 again, ensuring that the contact switch 700 is reliably connected, and there will be no contact bounce or the phenomenon of partial connection caused by malfunction, preventing contact burn-out and improving the switch life. When the actuator 200 is reset and moved, the snap-action elastic element 400 performs a reverse snap-action, causing the switch to open or close instantaneously. The snap-action force generated by the snap-action elastic element 400 is a lateral force, with no longitudinal force, which is different from the oblique snap-action force of traditional similar switches, thereby improving the life of the switch and meeting market demands; the signal switch 700 can be arranged at the front or rear end of the bottom of the mounting cavity to make reasonable use of space.

[0083] According to some embodiments of the present invention, in combination Figure 6The snap-action elastic element 400 includes a first spring 401 and a second spring 402 disposed on both sides of the drive unit 201. The first spring 401 is adapted to be compressed and charged by one side of the drive unit 201, and the second spring 402 is adapted to be compressed and charged by the other side of the drive unit 201. That is, when the drive unit 201 moves in a first direction, the first spring 401 can be compressed and charged by the drive unit 201; when the drive unit 201 moves in a second direction, the second spring 402 can be compressed and charged by the drive unit 201. The first and second directions are opposite and are in the same horizontal direction. Of course, in other examples, the snap-action elastic element 400 may also use a single spring structure. For example, only the first spring may be provided, and the second spring may be omitted.

[0084] According to a further embodiment of the present invention, in combination with Figure 4 The accommodating space 301 has a first abutment surface 3011 and a second abutment surface 3012, as well as a third abutment surface 3013 and a fourth abutment surface 3014, which are arranged opposite to each other. One end of the first spring 401 abuts against the first abutment surface 3011, and the other end abuts against the second abutment surface 3012 and is adapted to contact the driving part 201. One end of the second spring 402 abuts against the third abutment surface 3013, and the other end abuts against the fourth abutment surface 3014 and is adapted to contact the driving part 201. Understandably, when the first spring 401 is in its free state, one end abuts against the first abutment surface 3011 and the other end abuts against the second abutment surface 3012. When the driving part 201 moves in the first direction, the driving part 201 can contact the end of the first spring 401 that abuts against the second abutment surface 3012 and compress the first spring 401 as the driving part 201 continues to move. Similarly, when the second spring 402 is in its free state, one end abuts against the third abutment surface 3013 and the other end abuts against the fourth abutment surface 3014. When the driving part 201 moves in the second direction, the driving part 201 can contact the end of the second spring 402 that abuts against the fourth abutment surface 3014 and compress the second spring 402 as the driving part 201 continues to move.

[0085] Specifically, a strip-shaped hole 3015 can be provided in the accommodating space 301 for the drive unit 201 to move. One end of the strip-shaped hole 3015 is located between the first abutment surface 3011 and the second abutment surface 3012, and the other end of the strip-shaped hole 3015 is located between the third abutment surface 3013 and the fourth abutment surface 3014.

[0086] According to some embodiments of the present invention, in combination Figure 5 The locking part 302 is a protrusion, which extends downward from the bottom surface of the movable contact bracket 300. Optionally, there are two protrusions, which are arranged one-to-one on both sides of the strip hole 3015.

[0087] Correspondingly, combined Figure 7The locking part a is a column. When the side of the protrusion contacts the side of the column, the locking part a abuts against the locking part 302. When the bottom surface of the protrusion passes over the top surface of the column, the locking part 302 disengages from the side of the locking part a.

[0088] Optionally, the unlocking part b is a block disposed on the side of the locking part a. The top of the block has a first inclined surface s1, and the abutment part 202 has a second inclined surface s2. The second inclined surface s2 abuts against the first inclined surface s1 to press the unlocking part b against the resetting force of the reset part c. To ensure reliable pressure between the unlocking part b and the abutment part 202, the first inclined surface s1 transitions to a plane after contacting the second inclined surface s2; that is, the top of the block has a plane transition after the first inclined surface s1, and the abutment part 202 also has a plane transition after the second inclined surface s2. Furthermore, the first inclined surfaces s1 on the unlocking part b1 of the first locking member 500 and the unlocking part b2 of the second locking member 600 are disposed opposite to each other, and their inclination directions are opposite. Then, the second inclined surface s2 may include a front inclined surface and a rear inclined surface corresponding to the first inclined surfaces s1 on the two unlocking parts b. Furthermore, the corresponding locking part 302 has two protrusions, and the first locking member 500 and the second locking member 600 are provided with two locking parts a and two unlocking parts b on both sides of the reset part c; similarly, the actuator 200 is also provided with two abutting parts 202.

[0089] Optionally, the reset part c has a mounting groove and an elastic element. One end of the elastic element abuts against the mounting groove, and the other end abuts against the mounting cavity. That is, the elastic element is partially inserted into the mounting groove, and the bottom end of the elastic element abuts against the mounting cavity. The elastic element, through its elastic force, gives the reset part c a reset force. When the abutment part 202 presses against the unlocking part b, the elastic element is compressed, causing the locking part a to move down and separate from the locking part 302. The elastic element can be a compression spring structure. Of course, to facilitate the installation of the first locking member 500 and the second locking member 600, a limiting post can be provided in the mounting cavity to allow the compression spring to be installed.

[0090] According to some embodiments of the present invention, in combination Figure 2 , Figure 3 and Figure 9 For the signal switch 700, its brush 701 is mounted on the moving contact frame 300, and its circuit board 702 is mounted inside the mounting cavity. When the moving contact frame 300 moves, the brush 701 slides on the circuit board 702. When the brush 701 is in contact with the conductive sheet on the circuit board 702, the signal switch 700 is turned on; when the brush 701 is not in contact with the conductive sheet on the circuit board 702, the signal switch 700 is turned off. The brush 701 slides horizontally or rotates on the circuit board 702.

[0091] Specifically, the circuit board 702 is mounted in the mounting cavity via the first terminal 703. A first mounting groove 304 may be provided on the moving contact bracket 300, and the brush 701 is mounted in the first mounting groove 304. When the moving contact bracket 300 is assembled into the mounting cavity, the brush 701 contacts the circuit board 702 and is located above the circuit board 702.

[0092] Furthermore, the circuit board 702 and the first terminal 703 are electrically connected by an elastic element 704 or by riveting the circuit board 702 and the first terminal 703 together.

[0093] To prevent foreign objects from entering the switch and to ensure its protective capability, the first terminal 703 is provided with a first countersunk hole 7031. A screw can be locked into the first countersunk hole 7031 to connect the first terminal 703 to an external conductor.

[0094] Then, during assembly, the top of the circuit board 702 can be inserted into the limiting hole 7021 on the circuit board 702 through the protrusion on the housing 100, so that the protrusion presses on the circuit board 702, ensuring that the circuit board 702 is reliably fixed in the mounting cavity.

[0095] According to some embodiments of the present invention, in combination Figure 2 , Figure 5 and Figure 9 For the contact switch 800, its moving contact 801 is disposed on the moving contact frame 300, and its stationary contact 802 is disposed in the mounting cavity. When the moving contact frame 300 moves, the moving contact 801 contacts the stationary contact 802, forming a conductive circuit; or the moving contact 801 separates from the stationary contact 802, and the conductive circuit is cut off. In other words, the movement of the moving contact frame 300 can drive the moving contact 801 to move, causing the moving contact 801 to contact or separate from the stationary contact 802, thereby realizing the connection or disconnection of the circuit.

[0096] Specifically, the stationary contact 802 can be fixed in the mounting cavity via the second terminal 803. A second mounting groove 305 can be provided on the moving contact frame 300, and the moving contact 801 is installed in the second mounting groove 305. When the moving contact frame 300 is assembled into the mounting cavity, the moving contact 801 and the stationary contact 802 are spaced apart and opposite to each other. Further, the moving contact 801 can be connected to the second mounting groove 305 via a contact spring 306.

[0097] To prevent foreign objects from entering the switch and to ensure its protective capability, the second terminal 803 is provided with a second countersunk hole 8031. A screw can be locked into the second countersunk hole 8031 ​​to connect the second terminal 803 to an external conductor.

[0098] Combination Figure 2 and Figure 5The signal switch 700 can be set entirely on the left side of the first locking member 500 or on the right side of the second locking member 600; correspondingly, the contact switch 800 can be set entirely on the right side of the second locking member 600 or on the left side of the first locking member 500.

[0099] According to some embodiments of the present invention, the actuator 200 is connected to the mounting cavity via a reset element 203, and one end of the actuator 200 extends out of the mounting cavity and is hinged to the button 900. It is understood that the reciprocating horizontal movement of the actuator 200 within the mounting cavity is driven by manually pressing the button 900 and by the reset force of the reset element 203. Specifically, the actuator 200 is provided with a third mounting groove 204, and an extension block extends into the third mounting groove 204 from within the mounting cavity. One end of the reset element 203 abuts against the third mounting groove 204, and the other end abuts against the extension block. The reset element 203 may be a reset spring.

[0100] Combination Figure 8 For the actuator 200, its driving part 201 is a protruding rod, which extends downward from the bottom surface of the actuator 200; the abutment part 202 is a side wing, which extends outward from the side surface of the actuator 200. When the actuator 200 is assembled into the mounting cavity, the protruding rod is inserted into the strip hole 3015 and is movable within the strip hole 3015.

[0101] The following combination Figures 10-18 Explain the tripping and locking process of the electrical switch.

[0102] exist Figure 10 In the initial state, the switch is in the first locking position, and the first locking member 500 does not lock. The unlocking part b1 of the first locking member 500 abuts against the top of the mounting cavity, and the unlocking part b2 of the second locking member 600 abuts against the plane of the abutment part 202 of the actuator 200. The first spring 401 is located inside the moving contact frame 300, with its two ends abutting against the first abutment surface 3011 and the second abutment surface 3012, respectively. One end of the second spring 402 abuts against the third abutment surface 3013 of the moving contact frame 300, and the other end abuts against the driving part 201 of the actuator 200.

[0103] exist Figure 11 When button 900 is pressed, actuator 200 moves. The driving part 201 of actuator 200 is located between the second abutment surface 3012 and the fourth abutment surface 3014 of movable contact frame 300. The first spring 401 and the second spring 402 are located inside movable contact frame 300, and actuator 200 does not compress or concentrate energy on the first spring 401 and the second spring 402. First locking member 500 still abuts against the top of mounting cavity, and abutment part 202 of actuator 200 moves away from second locking member 600 and closer to first locking member 500. Movable contact frame 300 remains in its initial state and does not move.

[0104] exist Figure 12 If button 900 is pressed again, the actuator 200 will move. The interaction between the drive part 201 of the actuator 200 and the first spring 401 inside the movable contact frame 300 will cause the movable contact frame 300 to move as well. When it reaches a certain displacement, the locking part 302 of the movable contact frame 300 will abut against the locking part a of the first locking member 500. At this time, the first locking member 500 will lock the movable contact frame 300, and the movable contact frame 300 will no longer be able to move. The drive part 201 of the actuator 200 is located between the second abutment surface 3012 and the fourth abutment surface 3014 of the movable contact frame 300. The first spring 401 and the second spring 402 are located inside the movable contact frame 300, and the actuator 200 does not compress or concentrate energy on the first spring 401 and the second spring 402.

[0105] exist Figure 13 If button 900 is pressed, the actuator 200 will move. Since the movable contact 300 is locked by the first locking member 500, the movable contact 300 does not move. The first spring 401 inside the movable contact 300 is continuously compressed and energized by the driving part 201. The unlocking part b of the first locking member 500 is pressed down by the front inclined surface of the abutment part 202 until the critical state of unlocking is reached.

[0106] exist Figure 14 When button 900 is pressed again, actuator 200 continues to move. First locking member 500 is pressed down by abutment part 202 and unlocks moving contact 300. First spring 401 immediately jumps and releases energy, moving contact 300 moves quickly, and moving contact 801 and stationary contact 802 come into contact, causing contact switch 800 to turn on instantaneously. Brush 701 slides on circuit board 702 and comes into contact with conductive sheet on circuit board 702, turning on signal switch 700. Second locking member 600 moves up under the action of reset part c2 and locks moving contact 300, ensuring reliable contact between moving and stationary contacts and reliable contact between brush 701 and conductive sheet on circuit board 702. This avoids contact bounce or jitter, as well as partial contact, which can lead to contact burnout and improve switch life.

[0107] exist Figure 15 If button 900 is pressed again, actuator 200 continues to move, and first spring 401 is compressed and accumulates energy. First locking member 500 is in the unlocked state, second locking member 600 is still in the locked state against moving contact 300, and contact switch 800 and signal switch 700 are still in the on state.

[0108] exist Figure 16When button 900 is released, actuator 200 retracts under the action of reset element 203 and first spring 401. Drive part 201 is positioned between second abutment surface 3012 and fourth abutment surface 3014 of moving contact frame 300. Second spring 402 is not compressed and charged under the action of drive part 201. Rear slope of abutment part 202 abuts against first slope of second locking member 600. Second locking member 600 is still locked to moving contact frame 300. Contact switch 800 and signal switch 700 are still in the on state.

[0109] exist Figure 17 When button 900 is released, actuator 200 continues to retract. Because the second locking member 600 locks the moving contact frame 300, drive unit 201 compresses and gathers energy on the second spring 402 until the abutment part 202 forces the second locking member 600 to the critical position of unlocking.

[0110] exist Figure 18 When button 900 is released, second locking member 600 is unlocked, second spring 402 suddenly releases energy, driving moving contact 300 to move rapidly backward, and contact switch 800 and signal switch 700 are momentarily disconnected. First locking member 500 moves upward under the action of reset part c1, and its locking part a1 can resist the locking part 302 of moving contact 300, thus locking moving contact 300 until button returns to initial position and switch also returns to initial state.

[0111] Implementation 2

[0112] The following is in conjunction with the appendix Figures 19-30 The following describes in detail another implementation of the electric switch provided by the present invention. The structure and principle of this electric switch are largely the same as those of Embodiment 1, and the similarities will not be described in detail here.

[0113] According to an embodiment of the present invention, an electric switch includes a housing 100, a mounting cavity defined within the housing 100, and an actuator 200, a movable contact 300, a snap-action elastic element 400, a first locking element 500, a second locking element 600, a contact switch 800, and a signal switch 700 disposed within the mounting cavity.

[0114] Combination Figures 19-21 The signal switch 700 includes a brush 701 and a circuit board 702. The circuit board 702 is disposed on the housing 100. The brush 701 is connected to the actuator 200 so that the brush 701 can be moved by the movement of the actuator 200.

[0115] Specifically, the housing 100 has a groove 101, and a sliding hole 1011 is provided in the groove 101. The brush 701 is mounted on the brush holder 705, which is installed in the groove 101. The brush holder 705 extends downward with a protrusion 7051, which is inserted into the sliding hole 1011 and can slide within the sliding hole 1011. The actuator 200 has an actuation groove 205. When the actuator 200 is assembled in the mounting cavity, the protrusion 7051 can pass through the sliding hole 1011 and be inserted into the actuation groove 205. Thus, when the actuator 200 moves, the inner wall of the actuation groove 205 can abut against the protrusion 7051 and drive the protrusion 7051 to slide within the sliding hole 1011 as the actuator 200 moves, thereby causing the brush holder 705 to drive the brush 701 to slide.

[0116] Furthermore, a hook 1012 is provided on the inner wall of the groove 101, and a support surface 1013 is provided below the hook 1012 on the inner wall. The circuit board 702 can be attached to the support surface 1013 and hooked by the hook 1012, and then sealed by the resin 1014, so that the circuit board 702 is placed on the housing 100 and located above the brush 701, and in contact with the brush 701.

[0117] The signal switch 700 is located at the upper rear end of the housing 100, which allows for diverse placement of the signal switch to make reasonable use of space.

[0118] The following combination Figures 22-30 Explain the tripping and locking process of the electrical switch.

[0119] exist Figure 22 In the initial state, the switch is not locking; the first locking member 500 is not engaged; the unlocking part b1 of the first locking member 500 rests against the top of the mounting cavity; and the unlocking part b2 of the second locking member 600 rests against the plane of the abutment part 202 of the actuator 200. The first spring 401 is located inside the moving contact frame 300, with its two ends abutting against the first abutment surface 3011 and the second abutment surface 3012, respectively. One end of the second spring 402 abuts against the third abutment surface 3013 of the moving contact frame 300, and the other end abuts against the drive part 201 of the actuator 200. For the signal switch 700, the protrusion 7051 does not contact the right inner wall of the actuation groove 205.

[0120] exist Figure 23When button 900 is pressed, actuator 200 moves. The driving part 201 of actuator 200 is located between the second abutment surface 3012 and the fourth abutment surface 3014 of moving contact frame 300. The first spring 401 and the second spring 402 are located within moving contact frame 300, and actuator 200 does not compress or concentrate energy on the first spring 401 and the second spring 402. First locking member 500 still abuts against the top of mounting cavity, and abutment part 202 of actuator 200 moves away from second locking member 600 and closer to first locking member 500. Moving contact frame 300 remains in its initial state and does not move. For signal switch 700, the position of protrusion 7051 within actuation groove 205 changes, but it still does not contact the right inner sidewall of actuation groove 205.

[0121] exist Figure 24 If button 900 is pressed again, the actuator 200 will move. The interaction between the driving part 201 of the actuator 200 and the first spring 401 in the movable contact 300 will cause the movable contact 300 to move as well. At a certain displacement, the locking part 302 of the movable contact 300 will abut against the locking part a1 of the first locking member 500. At this point, the first locking member 500 will lock the movable contact 300, preventing it from moving further. The driving part 201 of the actuator 200 is located between the second abutment surface 3012 and the fourth abutment surface 3014 of the movable contact 300. The first spring 401 and the second spring 402 are located within the movable contact 300, and the actuator 200 does not compress or concentrate energy on the first spring 401 and the second spring 402. For the signal switch 700, the position of the protrusion 7051 within the actuation groove 205 changes, but it still does not contact the right inner wall of the actuation groove 205.

[0122] exist Figure 25 If button 900 is pressed again, the actuator 200 will move. Since the movable contact 300 is locked by the first locking member 500, the movable contact 300 will not move. The first spring 401 inside the movable contact 300 will continue to be compressed and energized by the driving part 201. Meanwhile, the unlocking part b1 of the first locking member 500 will be pressed downward by the front inclined surface of the abutment part 202 until it reaches the critical state of unlocking. For the signal switch 700, the position of the protrusion 7051 in the actuation groove 205 will change, and the protrusion 7051 will just contact the right inner side wall of the actuation groove 205.

[0123] exist Figure 26If button 900 is pressed again, actuator 200 continues to move, protrusion 7051 contacts the right side wall of actuator groove 205, actuator groove 205 drives protrusion 7051 to move under the movement of actuator 200, brush 701 slides on circuit board 702 and contacts conductive sheet on circuit board 702, so that signal switch 700 is turned on; first locking member 500 is pressed down by abutment part 202 and then unlocks moving contact 300, first spring 401 immediately jumps and releases energy, moving contact 300 moves quickly, moving contact 801 and stationary contact 802 contact, so contact switch 800 is turned on instantaneously. The second locking member 600 moves upward under the action of the reset part c2 to lock the moving contact frame 300, so that the moving and stationary contacts can make reliable contact, and the brush 701 can make reliable contact with the conductive sheet on the circuit board 702. This avoids contact bounce or jitter and the undesirable phenomenon of partial contact, which may lead to contact burn-out and improves the switch life.

[0124] exist Figure 27 If button 900 is pressed again, actuator 200 continues to move, and first spring 401 is compressed and accumulates energy. First locking member 500 is in the unlocked state, second locking member 600 is still in the locked state against moving contact 300, and contact switch 800 and signal switch 700 are still in the on state.

[0125] exist Figure 28 When button 900 is released, actuator 200 retracts under the action of reset element 203 and first spring 401. Drive part 201 is positioned between second abutment surface 3012 and fourth abutment surface 3014 of moving contact frame 300. Second spring 402 is not compressed and charged under the action of drive part 201. Rear slope of abutment part 202 abuts against first slope of second locking member 600. Second locking member 600 is still locked to moving contact frame 300. Contact switch 800 and signal switch 700 are still in the on state.

[0126] exist Figure 29 When button 900 is released, actuator 200 continues to retract. Because second locking member 600 locks moving contact 300, drive unit 201 compresses and gathers energy into second spring 402 until abutment part 202 forces second locking member 600 to the critical unlocking position. For signal switch 700, protrusion 7051 changes position within actuator groove 205, contacting the left inner sidewall of actuator groove 205.

[0127] exist Figure 30When button 900 is released, actuator 200 drives brush 701 back to its original position, and signal switch 700 is momentarily disconnected; second locking member 600 is unlocked, second spring 402 suddenly releases energy, driving moving contact 300 to move rapidly backward, and contact switch 800 is momentarily disconnected. First locking member 500 moves upward under the action of reset part c1, and its locking part a1 can resist the locking part 302 of moving contact 300, thus locking moving contact 300 until button returns to initial position and switch also returns to initial state.

[0128] Other configurations of the electric switch according to embodiments of the present invention may adopt existing structures, which will not be described in detail here.

[0129] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0130] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0131] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0132] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0133] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0134] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An electrical switch, comprising a housing, wherein a mounting cavity is defined within the housing, and the mounting cavity is provided with an actuator, a moving contact, a snap-action elastic element, a locking mechanism, a contact switch, and a signal switch, characterized in that, The actuator is adapted to reciprocate horizontally within the mounting cavity; the movable contact frame is provided with a locking portion; the snap-fit ​​elastic element includes a first spring and a second spring symmetrically arranged on both sides of the actuator drive portion, the first spring and the second spring being compressed and accumulating energy by the movement of the drive portion; the locking mechanism has two locking elements, the two locking elements being arranged one-to-one on both sides of the movable contact frame, the two locking elements being adapted to reciprocate vertically within the mounting cavity as the actuator moves to prevent or release the locking portion; The brush of the signal switch is disposed on the moving contact frame; the moving contact of the contact switch is disposed on the moving contact frame; when the actuator is driven to move, one locking member prevents the locking part, the snap-fit ​​elastic member compresses and accumulates energy, driving the actuator to move continuously, the locking member releases the obstruction of the locking part, the other locking member prevents the locking part, the snap-fit ​​elastic member snaps and releases energy to drive the moving contact frame to move, the brush slides on the circuit board to turn the signal switch on or off, and the moving contact contacts or separates from the stationary contact to turn the contact switch on or off; The actuator includes a stop portion, the drive portion is inserted into the movable contact frame and compresses the snap-action elastic element as the actuator moves to cause the snap-action elastic element to accumulate energy; the stop portion is adapted to press against the locking member and drive the locking member to release its obstruction of the locking portion; The spring-loaded elastic element includes a first spring and a second spring disposed on both sides of the drive unit. The first spring is adapted to be compressed and charged by one side of the drive unit, and the second spring is adapted to be compressed and charged by the other side of the drive unit. The locking member includes a locking part, an unlocking part, and a reset part. One end of the reset part abuts against the mounting cavity to form a reset force that drives the reset part to move in the vertical direction. The reset force causes the locking part to prevent the locking part from moving to restrict the movement of the moving contact frame. The unlocking part is adapted to be pressed by the actuator to overcome the reset force of the reset part and facilitate the locking part to disengage from the locking part.

2. The electrical switch as described in claim 1, characterized in that, The circuit board is installed in the mounting cavity via the first terminal, and the stationary contact is installed in the mounting cavity via the second terminal.

3. The electrical switch as described in claim 2, characterized in that, The circuit board is electrically connected to the first terminal block via an elastic element, or the circuit board is riveted to the first terminal block.

4. The electrical switch as described in claim 2, characterized in that, Both the first terminal and the second terminal are provided with countersunk holes, and screws are locked into the countersunk holes to connect the first terminal and the second terminal to an external conductor.

5. The electrical switch as described in claim 1, characterized in that, The movable contact frame is provided with a first mounting groove and a second mounting groove on both sides of the locking part, the brush is provided in the first mounting groove, and the movable contact is provided in the second mounting groove.

6. An electrical switch, comprising a housing, wherein a mounting cavity is defined within the housing, and the mounting cavity is provided with an actuator, a moving contact, a snap-action elastic element, a locking mechanism, a contact switch, and a signal switch, characterized in that, The actuator is adapted to reciprocate horizontally within the mounting cavity; the movable contact frame is provided with a locking portion; the snap-action elastic element is disposed on the movable contact frame and is adapted to be compressed and energized as the actuator moves; the locking mechanism has two locking elements, which are adapted to reciprocate vertically within the mounting cavity as the actuator moves to prevent or release the locking portion; the brush of the signal switch is connected to the actuator so that the brush moves as the actuator moves; the movable contact of the contact switch is disposed on the movable contact frame; when the actuator is driven to move, one locking element prevents the locking portion, the snap-action elastic element compresses and energizes, driving the actuator to move continuously, the locking element releases the locking portion, the other locking element prevents the locking portion, the snap-action elastic element snaps and releases energy to drive the movable contact frame to move, the movable contact contacts or separates from the stationary contact to turn the contact switch on or off, and the brush slides on the circuit board to turn the signal switch on or off; The actuator includes a stop portion and a drive portion. The drive portion is inserted into the movable contact frame and compresses the snap-action elastic element as the actuator moves, causing the snap-action elastic element to accumulate energy. The stop portion is adapted to press against the locking element and drive the locking element to release its obstruction of the locking portion. The spring-loaded elastic element includes a first spring and a second spring disposed on both sides of the drive unit. The first spring is adapted to be compressed and charged by one side of the drive unit, and the second spring is adapted to be compressed and charged by the other side of the drive unit. The locking member includes a locking part, an unlocking part, and a reset part. One end of the reset part abuts against the mounting cavity to form a reset force that drives the reset part to move in the vertical direction. The reset force causes the locking part to prevent the locking part from moving to restrict the movement of the moving contact frame. The unlocking part is adapted to be pressed by the actuator to overcome the reset force of the reset part and facilitate the locking part to disengage from the locking part.

7. The electrical switch as described in claim 6, characterized in that, The housing has a groove, the actuator has an actuation groove, the brush is disposed on the brush holder, the brush holder is installed on the groove and inserted into the actuation groove so that the brush holder can slide on the groove through the actuation groove.

8. The electrical switch as described in claim 6 or 7, characterized in that, The circuit board is mounted on the housing via hooks and sealed with resin.

Images