Switch structure

Abstract

A switch structure comprises a button assembly, a moving contact assembly and two static contact assemblies, the button assembly is provided with a first sliding piece, the moving contact assembly is provided with a second sliding piece, the button assembly and the moving contact assembly are in contact with each other under driving of an auxiliary spring, and the moving contact assembly drives the second sliding piece to cross the first sliding piece. When the moving contact assembly is in contact with the static contact assembly, on the basis that an existing contact spring drives the moving contact assembly and the static contact assembly to be pressed tightly, the auxiliary spring further drives the moving contact assembly and the static contact assembly to be pressed tightly, so that the contact pressure can be compensated, and the service life of the moving contact assembly and the static contact assembly can be prolonged. And the service life can be prolonged.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical appliances, specifically to a switch structure. Background Technology

[0002] The contact fit between the moving and stationary contacts of a switch requires a certain contact pressure. Sufficient contact pressure can reduce contact resistance and lower the temperature rise at the contact point. However, the springs traditionally used to maintain contact pressure are prone to fatigue, especially with frequent use. The drive spring of the switch will undergo plastic deformation, resulting in a reduction in length. This change in spring length will affect the contact pressure. Utility Model Content

[0003] The purpose of this invention is to overcome at least one defect of the prior art and provide a switch structure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A switch structure includes a toggle assembly, a moving contact assembly, and two sets of stationary contact assemblies. The toggle assembly drives the moving contact assembly to swing between the two sets of stationary contact assemblies, causing the moving contact assembly to contact one of the stationary contact assemblies and simultaneously separating it from the other. The toggle assembly includes a toggle and a contact spring connected between the toggle and the moving contact assembly. When the toggle drives the moving contact assembly to contact any set of stationary contact assemblies, the contact spring drives the moving contact assembly to press firmly against that set of stationary contact assemblies.

[0006] The button is also provided with a first sliding member, and the moving contact assembly is also provided with a second sliding member. The first sliding member and the second sliding member are slidably engaged. At least one of the first sliding member and the second sliding member is provided with an auxiliary spring. The auxiliary spring is used to drive the first sliding member and the second sliding member to contact. The first sliding member is located between two sets of stationary contact assemblies. When the moving contact assembly contacts one of the sets of stationary contact assemblies, it can drive the second sliding member to pass over the first sliding member and move the second sliding member to the space between the first sliding member and the stationary contact assembly. The moving contact assembly is then driven by the auxiliary spring to press the stationary contact assembly together.

[0007] Preferably, the first slider and the second slider each have a spherical contact surface, and the contact surfaces of the first slider and the second slider are in sliding engagement.

[0008] Preferably, both the first and second sliders are hemispherical, each including a spherical contact surface and a planar guide surface. The first slider has a first guide hole in the middle of its guide surface, and the second slider has a second guide hole in the middle of its guide surface. The button assembly has a first guide portion, with the first guide hole fitted onto the first guide portion. A first spring, serving as an auxiliary spring, is provided on the first guide portion, with both ends of the first spring connected to the first slider and the button assembly, respectively. The moving contact assembly has a second guide portion, with the second guide hole fitted onto the second guide portion. A second spring, serving as an auxiliary spring, is provided on the second guide portion, with both ends of the second spring connected to the second slider and the moving contact assembly, respectively.

[0009] Preferably, the first guide portion and the second guide portion are respectively provided with limiting structures. The limiting structure on the first guide portion is used to prevent the first guide portion from separating from the first slider, and the limiting structure on the second guide portion is used to prevent the second guide portion from separating from the second slider.

[0010] Preferably, the moving contact assembly includes a swing plate with a moving contact, and the second slider is disposed on the swing plate.

[0011] Preferably, the button includes a pressing part and a driving part, and the driving part and the middle part of the pressing part are connected to form a T-shaped button. At least one side of the connection between the driving part and the pressing part is provided with the first sliding member.

[0012] Preferably, the moving contact assembly includes a contact plate and a swing plate. The swing plate is disposed on the side of the contact plate. A rotating part is provided on the side of the swing plate near the contact plate. The swing plate rotates around the rotating part. A swing part is provided on the side of the swing plate away from the contact plate. The swing part is located between two sets of stationary contact assemblies. Moving contacts are respectively provided on the opposite sides of the swing part.

[0013] Preferably, the swing part has a raised second guide part on the side away from the contact plate, the second sliding member is disposed on the second guide part, and the second guide part is provided with a second spring as an auxiliary spring, the two ends of the second spring being connected to the second sliding member and the second guide part respectively.

[0014] Preferably, the middle part of the pressing part is provided with a rotating shaft on each of the opposite sides, the button rotates around the axis of the rotating shaft, at least one rotating shaft is provided with a first guide part, the first guide part is provided with a first spring as an auxiliary spring, and the two ends of the first spring are respectively connected to the first sliding member and the first guide part.

[0015] Preferably, the drive unit is provided with a spring mounting groove and a drive groove, the contact spring is installed in the spring mounting groove and connected to the swing plate, the drive groove is sleeved on the driven part of the swing plate, and the button assembly pushes the driven part to drive the swing plate to rotate.

[0016] Preferably, the moving contact assembly includes a contact plate and a swing plate. The swing plate is disposed on the side of the contact plate. The side of the swing plate away from the contact plate is provided with a swing part and a driven part. The length of the swing part is greater than the length of the driven part. Moving contacts are respectively provided on the two opposite sides of the swing part. The driving groove is provided on the two opposite side walls of the spring mounting groove. The driven part includes two driven plates spaced apart and a limiting plate disposed between the two driven plates. Spring limiting grooves are respectively provided between the limiting plate and the two driven plates on both sides. The contact spring can be sleeved on the limiting plate and inserted into the spring limiting grooves on both sides for limiting.

[0017] Preferably, the drive unit is provided with a spring mounting groove, the contact spring is installed in the spring mounting groove, one end of the push rod is connected to the contact spring, and the other end is connected to the swing plate of the moving contact assembly.

[0018] Preferably, it further includes a base, a pressure plate, a mounting plate, levers, a panel, and a cover plate. The moving contact assembly and the stationary contact assembly are disposed in the base. The pressure plate covers the base. The button assembly is rotatably mounted on the pressure plate and passes through the pressure plate to drive the moving contact assembly. The mounting plate, the panel, and the cover plate are arranged sequentially above the pressure plate. The panel is provided with a rotatable cover plate and two levers. The two levers are arranged opposite each other on both sides of the rotation axis of the cover plate. When the cover plate rotates, it can push one of the levers, which in turn pushes the button assembly to drive the moving contact assembly to swing between the two sets of stationary contact assemblies.

[0019] Preferably, the contact plate includes a first contact portion and a second contact portion arranged in parallel, and a third contact portion connected between the first contact portion and the second contact portion. The third contact portion is connected to the wiring assembly. The first contact portion is located between two stationary contact assemblies, and the swing plate of the moving contact assembly is disposed on the first contact portion.

[0020] The switch structure of this utility model, by setting a first sliding member and a second sliding member that slide in mutual cooperation between the moving contact assembly and the button, and by driving the second sliding member past the first sliding member through the moving contact assembly, changes the direction in which the first sliding member pushes the second sliding member. When the moving contact assembly contacts the stationary contact assembly, in addition to the existing contact spring driving the moving contact assembly to press against the stationary contact assembly, an auxiliary spring further drives the moving contact assembly to press against the stationary contact assembly. This not only compensates for and guarantees the contact pressure between the moving contact assembly and the stationary contact assembly, reduces contact resistance and lowers temperature rise, greatly improving reliability and stability, but also does not affect the existing contact spring used to drive the moving contact assembly and the stationary contact assembly to press against each other. The auxiliary spring can form a multi-spring drive structure with the existing contact spring. When the existing contact spring is fatigued, the auxiliary spring can still provide sufficient contact pressure for the moving contact assembly and the stationary contact assembly, greatly extending the service life.

[0021] In addition, both the first and second sliding parts are made of spherical surfaces, which makes the sliding fit smoother and prevents jamming. Attached Figure Description

[0022] Figure 1 This is an exploded view of the switch structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the base and contact assembly of this utility model;

[0024] Figure 3 This is a schematic diagram of the contact assembly of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the stationary contact assembly of this utility model;

[0026] Figure 5 This is a schematic diagram of the moving contact assembly of this utility model;

[0027] Figure 6 This is a structural schematic diagram of the button assembly of this utility model;

[0028] Figure 7 This is a schematic diagram of the switch structure of this utility model;

[0029] In the picture:

[0030] Detailed Implementation

[0031] The specific embodiments of the switch structure of this utility model are further described below with reference to the accompanying drawings. The switch structure of this utility model is not limited to the descriptions in the following embodiments.

[0032] like Figure 1As shown, the switch structure of this embodiment includes a base 1, a contact assembly 2, a toggle assembly 3, a pressure plate 4, a mounting plate 5, a lever 6, a panel 7, and a cover plate 8. The contact assembly 2 is disposed in the base 1. The contact assembly 2 includes at least two sets of stationary contact assemblies 22 arranged opposite each other, and at least one set of moving contact assemblies 23 disposed between the two sets of stationary contact assemblies 22. The moving contact assembly 23 and the two sets of stationary contact assemblies 22 are respectively connected to the circuit through the wiring assembly 21. The pressure plate 4 covers the base 1, limiting the contact assembly 2 in the base 1. The toggle assembly 3 is rotatably mounted on the pressure plate 4 and passes through the pressure plate 4 to drive the moving contact assembly 23. The mounting plate 5, the panel 7, and the cover plate are sequentially arranged above the pressure plate 4. 8. The base 1 and the panel 7 are disposed opposite each other on both sides of the mounting plate 5. The mounting plate 5 is connected to the base 1, and the panel 7 covers the mounting plate 5 and is connected to the mounting plate 5 or the base 1. The panel 7 is provided with a rotatable cover plate 8 and two levers 6. The two levers 6 are disposed opposite each other on both sides of the rotation axis of the cover plate 8. When the cover plate 8 rotates, it can push one of the levers 6, which in turn pushes the button assembly 3 to drive the moving contact assembly 23 to swing between the two sets of stationary contact assemblies 22. This causes the moving contact assembly 23 to contact one of the stationary contact assemblies 22 and connect the circuit connected to that stationary contact assembly 22. At the same time, it causes the moving contact assembly 23 to separate from the other stationary contact assembly 22 and disconnect the circuit connected to that stationary contact assembly 22. It should be noted that, as another embodiment, the cover plate 8 can be directly connected to the button assembly 3, and the cover plate 8 directly drives the button assembly 3 to rotate without the lever 6; alternatively, the panel 7 can be omitted, and the cover plate 8 can be rotatably mounted on the mounting plate 5. Both are within the protection scope of this utility model.

[0033] The button assembly 3 includes a button 31 and a contact spring 34 connected between the button 31 and the moving contact assembly 23. When the button 31 drives the moving contact assembly 23 to contact any set of stationary contact assemblies 22, the force exerted by the contact spring 34 on the moving contact assembly 23 drives the moving contact assembly 23 to press against the stationary contact assembly 22. This is the prior art in the field.

[0034] An improvement in this embodiment is that the button 31 is further provided with a first sliding member 33, and the moving contact assembly 23 is further provided with a second sliding member 231. The first sliding member 33 and the second sliding member 231 are slidably engaged. At least one of the first sliding member 33 and the second sliding member 231 is provided with an auxiliary spring. The auxiliary spring drives the first sliding member 33 and the second sliding member 231 to contact. The first sliding member 33 is located between two sets of stationary contact assemblies 22. When the moving contact assembly 23 contacts one of the sets of stationary contact assemblies 22, it can drive the second sliding member 231 to pass over the first sliding member 33 and move the second sliding member 231 to the space between the first sliding member 33 and the stationary contact assembly 22. The auxiliary spring drives the moving contact assembly 23 to press against the stationary contact assembly 22.

[0035] In this embodiment of the switch structure, a first sliding member 33 and a second sliding member 231 are provided in sliding cooperation between the moving contact assembly 23 and the button 31. The moving contact assembly 23 drives the second sliding member 231 to pass over the first sliding member 33, causing the first sliding member 33 to change the direction of pushing the second sliding member 231. When the moving contact assembly 23 contacts the stationary contact assembly 22, in addition to the existing contact spring 34 driving the moving contact assembly 23 to press against the stationary contact assembly 22, an auxiliary spring further drives the moving contact assembly 23 to press against the stationary contact assembly 22. The clamping not only compensates for and guarantees the contact pressure between the moving contact assembly 23 and the stationary contact assembly 22, reducing contact resistance and lowering temperature rise, thus greatly improving reliability and stability, but also does not affect the existing contact spring 34 used to drive the clamping of the moving contact assembly 23 and the stationary contact assembly 22. The auxiliary spring can form a multi-spring drive structure with the existing contact spring 34. When the existing contact spring 34 is fatigued, the auxiliary spring can still provide sufficient contact pressure for the moving contact assembly 23 and the stationary contact assembly 22, greatly extending the service life.

[0036] Furthermore, both the first slider 33 and the second slider 231 are spherical or hemispherical, and each of the first slider 33 and the second slider 231 has a spherical contact surface. The contact surfaces of the first slider 33 and the second slider 231 slide together, which makes the sliding engagement smoother and prevents jamming. In this embodiment, both the first slider 33 and the second slider 231 are hemispherical, each including a spherical contact surface and a planar guide surface. The first slider 33 has a first guide hole 331 in the middle of its guide surface, and the second slider 231 has a second guide hole 2311 in the middle of its guide surface. The contact surfaces of the first slider 33 and the second slider 231 slide together. The button 31 has a first guide portion 311, and the first guide hole 331 is fitted onto the first guide portion 311. A first spring 32, which serves as an auxiliary spring, is provided on the first guide portion 311. The two ends of the first spring 32 are respectively connected to the first slider 33 and the button 31. The moving contact assembly 23 has a second guide portion 2341, and the second guide hole 2311 is fitted onto the second guide portion 2341. A second spring 232, which serves as an auxiliary spring, is provided on the second guide portion 2341. The two ends of the second spring 232 are respectively connected to the second slider 231 and the moving contact assembly 23.

[0037] It is understood that the shapes of the first sliding member 33 and the second sliding member 231 can also be different. For example, the first sliding member 33 can be spherical, and the second sliding member 231 can be a straight rod, with a chamfer on the rod. Furthermore, the dimensions of the first sliding member 33 and the second sliding member 231 can also be different. For example, when both the first sliding member 33 and the second sliding member 231 are spherical, one of them may have a larger diameter than the other. Additionally, only one of the first spring 32 and the second spring 232 can be provided; that is, the one of the first sliding member 33 and the second sliding member 231 without an auxiliary spring can be fixed. All of these are within the protection scope of this utility model.

[0038] like Figure 7 As shown, the moving contact assembly 23 includes a swing plate 234 with a moving contact 233. The second sliding member 231 is disposed on the swing plate 234, located at the end of the swing plate 234 near the button 31. The button 31 includes a pressing part 310 and a driving part 312. The driving part 312 and the pressing part 310 are connected at the middle to form a T-shaped structure of the button 31. The driving part 312 is used to drive the swing plate 234 to swing, so that the swing plate 234 contacts the stationary contact 224 of one of the stationary contact assemblies 22 and separates from the stationary contact 224 of the other stationary contact assembly 22. At least one side of the connection between the driving part 312 and the pressing part 310 is provided with the first sliding member 33. During the swinging process of the swing plate 234, the first sliding member 33 and the second sliding member 231 always remain in contact.

[0039] like Figure 3 , 5 As shown, the moving contact assembly 23 includes a fixedly mounted contact plate 235 and a rotatable swing plate 234. The swing plate 234 is disposed on the side of the contact plate 235. A rotating part 236 is provided on the side of the swing plate 234 near the contact plate 235. The rotating part 236 is supported on the contact plate 235 and rotates. When the swing plate 234 rotates, the rotating part 236 is always in contact with the contact plate 235, so that the contact plate 235 and the swing plate 234 are electrically connected. Preferably, the base 1 is provided with a limiting groove for inserting the rotating part 236, so that the swing plate 234 swings within the range of the limiting groove, ensuring reliability. The swing plate 234 is provided with a swing part 237 and a driven part 238 on the side away from the contact plate 235. The length of the swing part 237 is greater than the length of the driven part 238. The swing part 237 is located between the two sets of stationary contact assemblies 22. The two opposite sides of the swing part 237 are provided with moving contacts 233. The driven part 238 cooperates with the button 31. The button 31 can push the driven part 238 to make the swing plate 234 rotate.

[0040] Furthermore, such as Figure 5As shown, the swing part 237 has a protruding second guide part 2341 on the side away from the contact plate 235. The second sliding member 231 is slidably disposed on the second guide part 2341. The second guide part 2341 is provided with a second spring 232 as an auxiliary spring. The two ends of the second spring 232 are respectively connected to the second sliding member 231 and the second guide part 2341.

[0041] Furthermore, the second guide portion 2341 is connected to the second sliding member 231 via the second spring 232. One end of the second spring 232 is fitted onto the second guide portion 2341 with an interference fit, and the other end is inserted into the second guide portion 2341 with an interference fit. The second sliding member 231 is limited by the limiting structure under the drive of the second spring 232. The limiting structure not only allows the second sliding member 231 and the moving contact assembly 23 to be assembled as one unit before being installed together in the base 1, but also prevents the second sliding member 231 from falling off during operation.

[0042] As one embodiment of the limiting structure, the limiting structure includes a claw disposed on the side of the second guide portion 2341, and a retaining plate disposed on the inner side of the second sliding member 231. The retaining plate has a through hole through which the claw passes. After the claw passes through the through hole and the retaining plate, the second sliding member 231 is rotated to misalign the claw with the through hole. The retaining plate prevents the claw from leaving the second sliding member 231, thereby limiting the second sliding member 231. Of course, the limiting structure can also adopt other shapes, such as a T-shape, with claws disposed on opposite sides, all of which fall within the protection scope of this utility model. It is understood that the first guide portion 311 on the button assembly 3 also has the limiting structure.

[0043] like Figure 6 As shown, the button 31 includes a pressing part 310 and a driving part 312 connected to the pressing part 310. The driving part 312 and the middle part of the pressing part 310 are connected to form a T-shaped structure of the button 31. The pressing part 310 has pressing bosses 313 at both ends. The cover plate 8 pushes one end of the pressing part 310 through the lever 6, causing the button 31 to rotate and drive the driving part 312 to push the moving contact assembly 23 away from one of the set of stationary contact assemblies 22 and to contact another of the stationary contact assemblies 22.

[0044] Preferably, the first sliding member 33 is provided on at least one side of the connection between the driving part 312 and the pressing part 310. Further, rotating shafts 3111 are provided on opposite sides of the connection between the driving part 312 and the pressing part 310, and the first sliding member 33 is provided on at least one side of the rotating shaft 3111 near the driving part 312.

[0045] In this embodiment, the drive unit 312 is provided with a spring mounting groove 314 and a drive groove 315. The contact spring 34 is installed in the spring mounting groove 314 and connected to the swing plate 234. The drive groove 315 is sleeved on the driven part 238 of the swing plate 234. When the button 31 swings, it drives the swing plate 234 to swing through the drive groove 315. When the button 31 drives the moving contact assembly 23 to contact any set of stationary contact assemblies 22, it simultaneously drives the middle part of the contact spring 34 to bend towards one side of the stationary contact assembly 22. The contact spring 34 drives the moving contact assembly 23 to press against the stationary contact assembly 22. Specifically, in this embodiment, the end of the drive unit 312 is provided with a spring mounting groove 314, and the opposite side walls of the spring mounting groove 314 are respectively provided with drive grooves 315. The drive grooves 315 are sleeved on the driven part 238 of the swing plate 234. The opposite side walls of the drive grooves 315 are respectively used to push the driven part 238, so that the driven part 238 drives the swing plate 234 to swing.

[0046] Preferably, the driven part 238 of the swing plate 234 includes two driven plates 2381 spaced apart, and a limiting plate 2382 disposed between the two driven plates 2381. Spring limiting grooves are respectively provided between the limiting plate 2382 and the two driven plates 2381 on both sides. The contact spring 34 can be sleeved on the limiting plate 2382 and inserted into the spring limiting grooves on both sides for limiting.

[0047] Furthermore, the pressing part 310 has a rotating shaft 3111 on each of its opposite sides. The button 31 rotates around the axis of the rotating shaft 3111. One of the rotating shafts 3111 has a first guide part 311 that cooperates with the first sliding member 33 on the side near the driving part 312. The two ends of the first spring 32 are connected to the first sliding member 33 and the first guide part 311, respectively. The two opposite sides of the rotating shaft 3111 have a first rib 3112 and two second ribs 3113 that are connected to the first rib 3112, respectively. The rotating shaft 3111 is located between the two second ribs 3113 and connected to the first rib 3112.

[0048] It is understood that the button 31 may also be provided with two sets of first sliding members 33, which are arranged opposite to each other on both sides of the pressing part 310. At the same time, two sets of second sliding members 231 corresponding to the two sets of first sliding members 33 are provided on the moving contact assembly 23, so that the force on both sides of the button 31 can be balanced.

[0049] As another embodiment, the toggle assembly 3 drives the actuating contact assembly 23, which is not shown in the figure. The toggle assembly 3 includes a toggle 31, a contact spring 34, and a push rod. The toggle 31 includes a pressing part 310 and a driving part 312 connected to the pressing part 310. The driving part 312 and the middle part of the pressing part 310 are connected to form a T-shaped structure. The toggle 31 can be referred to. Figure 6The drive unit 312 is provided with a spring mounting groove 314, and the contact spring 34 is installed in the spring mounting groove 314. One end of the push rod is connected to the contact spring 34, and the other end is connected to the swing plate 234 of the moving contact assembly 23. The contact spring 34 is indirectly connected to the swing plate 234. When the button 31 swings, it drives the swing plate 234 to swing through the contact spring 34 and the push rod.

[0050] like Figure 3 , 7 As shown, the moving contact assembly 23 is arranged side by side with one of the stationary contact assemblies 22. The contact plate 235 includes a first contact portion 2351 and a second contact portion 2352 arranged in parallel, and a third contact portion 2353 connected between the first contact portion 2351 and the second contact portion 2352. The third contact portion 2353 is connected to the wiring assembly 21. The first contact portion 2351 is located between the two stationary contact assemblies 22. The swing plate 234 of the moving contact assembly 23 is disposed on the first contact portion 2351.

[0051] Furthermore, such as Figure 4 , 7 As shown, the stationary contact assembly 22 includes a U-shaped conductive plate. The conductive plate includes a first conductive part 221 and a second conductive part 222 disposed opposite to each other, and a third conductive part 223 connected between the first conductive part 221 and the second conductive part 222. The two first conductive parts 221 are disposed opposite to each other. A stationary contact 224 is provided on the first conductive part 221. The second conductive part 222 is connected to a wiring assembly 21.

[0052] The wiring assembly 21 on the moving contact assembly 23 and the stationary contact assembly 22 has the same structure, both including a terminal block 211 and a wiring screw 212 disposed on the terminal block 211. The terminal block 211 of the moving contact assembly 23 is fitted onto the second contact portion 2352, and the wiring screw 212 is used to fix the wire to the second contact portion 2352. The terminal block 211 of the stationary contact assembly 22 is fitted onto the second conductive portion 222, and the wiring screw 212 is used to fix the wire to the second conductive portion 222.

[0053] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used during use. They are only for ease of description and do not indicate that the device or component referred to must have a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating relative importance.

[0054] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A switch structure comprising a toggle assembly (3), a moving contact assembly (23), and two sets of stationary contact assemblies (22), wherein the toggle assembly (3) drives the moving contact assembly (23) to swing between the two sets of stationary contact assemblies (22), causing the moving contact assembly (23) to contact one of the stationary contact assemblies (22) and simultaneously separating the moving contact assembly (23) from the other stationary contact assembly (22), wherein the toggle assembly (3) comprises a toggle (31) and a contact spring (34) connected between the toggle (31) and the moving contact assembly (23), wherein when the toggle (31) drives the moving contact assembly (23) to contact any set of stationary contact assemblies (22), the contact spring (34) drives the moving contact assembly (23) to press against the stationary contact assembly (22), characterized in that: The button (31) is also provided with a first sliding member (33), and the moving contact assembly (23) is also provided with a second sliding member (231). The first sliding member (33) and the second sliding member (231) are slidably engaged. At least one of the first sliding member (33) and the second sliding member (231) is provided with an auxiliary spring. The auxiliary spring is used to drive the first sliding member (33) and the second sliding member (231) to contact. The first sliding member (33) is located between two sets of stationary contact assemblies (22). When the moving contact assembly (23) contacts one of the sets of stationary contact assemblies (22), it can drive the second sliding member (231) to pass over the first sliding member (33) and move the second sliding member (231) to the space between the first sliding member (33) and the stationary contact assembly (22). The moving contact assembly (23) is driven by the auxiliary spring to press the stationary contact assembly (22) together.

2. The switch structure according to claim 1, characterized in that: The first slider (33) and the second slider (231) each have a spherical contact surface, and the contact surfaces of the first slider (33) and the second slider (231) slide together.

3. The switch structure according to claim 2, characterized in that: Both the first slider (33) and the second slider (231) are hemispherical, each including a spherical contact surface and a planar guide surface. The first slider (33) has a first guide hole (331) in the middle of its guide surface, and the second slider (231) has a second guide hole (2311) in the middle of its guide surface. The button (31) has a first guide portion (311), and the first guide hole (331) is fitted onto the first guide portion (311). The first guide portion (311) has a [missing information - likely a feature or designation]. The first spring (32) of the auxiliary spring is connected to the first slider (33) and the button (31) at both ends respectively; the moving contact assembly (23) is provided with a second guide part (2341), the second guide hole (2311) is sleeved on the second guide part (2341), the second guide part (2341) is provided with a second spring (232) as an auxiliary spring, and the two ends of the second spring (232) are connected to the second slider (231) and the moving contact assembly (23) respectively.

4. The switch structure according to claim 3, characterized in that: The first guide portion (311) and the second guide portion (2341) are respectively provided with limiting structures. The limiting structure on the first guide portion (311) is used to prevent the first guide portion (311) from separating from the first sliding member (33), and the limiting structure on the second guide portion (2341) is used to prevent the second guide portion (2341) from separating from the second sliding member (231).

5. The switch structure according to claim 1, characterized in that: The moving contact assembly (23) includes a swing plate (234) with a moving contact (233), and the second sliding member (231) is disposed on the swing plate (234).

6. The switch structure according to claim 5, characterized in that: The button (31) includes a pressing part (310) and a driving part (312). The driving part (312) and the middle part of the pressing part (310) are connected to form a T-shaped button (31). At least one side of the connection between the driving part (312) and the pressing part (310) is provided with the first sliding member (33).

7. The switch structure according to claim 5, characterized in that: The moving contact assembly (23) includes a contact plate (235) and a swing plate (234). The swing plate (234) is disposed on the side of the contact plate (235). A rotating part (236) is provided on the side of the swing plate (234) close to the contact plate (235). The swing plate (234) rotates around the rotating part (236). A swing part (237) is provided on the side of the swing plate (234) away from the contact plate (235). The swing part (237) is located between two sets of stationary contact assemblies (22). Moving contacts (233) are respectively provided on the opposite sides of the swing part (237).

8. The switch structure according to claim 7, characterized in that: The swing part (237) has a raised second guide part (2341) on the side away from the contact plate (235). The second sliding member (231) is disposed on the second guide part (2341). The second guide part (2341) is provided with a second spring (232) as an auxiliary spring. The two ends of the second spring (232) are respectively connected to the second sliding member (231) and the second guide part (2341).

9. The switch structure according to claim 6, characterized in that: The middle part of the pressing part (310) is provided with a rotating shaft (3111) on each side. The button (31) rotates around the axis of the rotating shaft (3111). At least one rotating shaft (3111) is provided with a first guide part (311). The first guide part (311) is provided with a first spring (32) as an auxiliary spring. The two ends of the first spring (32) are connected to the first sliding member (33) and the first guide part (311) respectively.

10. The switch structure according to claim 6, characterized in that: The drive unit (312) is provided with a spring mounting groove (314) and a drive groove (315). The contact spring (34) is installed in the spring mounting groove (314) and connected to the swing plate (234). The drive groove (315) is sleeved on the driven part (238) of the swing plate (234). The button (31) pushes the driven part (238) to drive the swing plate (234) to rotate.

11. The switch structure according to claim 10, characterized in that: The moving contact assembly (23) includes a contact plate (235) and a swing plate (234). The swing plate (234) is disposed on the side of the contact plate (235). The side of the swing plate (234) away from the contact plate (235) is provided with a swing part (237) and a driven part (238). The length of the swing part (237) is greater than the length of the driven part (238). Moving contacts (233) are respectively provided on the two opposite sides of the swing part (237). The spring mounting groove (314) The driving groove (315) is provided on the opposite two side walls respectively. The driven part (238) includes two driven plates (2381) spaced apart, and a limiting plate (2382) provided between the two driven plates (2381). A spring limiting groove is provided between the limiting plate (2382) and the two driven plates (2381) on both sides respectively. The contact spring (34) can be sleeved on the limiting plate (2382) and inserted into the spring limiting groove on both sides for limiting.

12. The switch structure according to claim 6, characterized in that: The drive unit (312) is provided with a spring mounting groove (314), and the contact spring (34) is installed in the spring mounting groove (314). One end of the push rod is connected to the contact spring (34), and the other end is connected to the swing plate (234) of the moving contact assembly (23).

13. The switch structure according to claim 1, characterized in that: It also includes a base (1), a pressure plate (4), a mounting plate (5), a lever (6), a panel (7), and a cover plate (8). The moving contact assembly (23) and the stationary contact assembly (22) are disposed in the base (1). The pressure plate (4) covers the base (1). The button assembly (3) is rotatably mounted on the pressure plate (4) and passes through the pressure plate (4) to drive the moving contact assembly (23). The mounting plate (5), the panel (7), and the cover plate (8) are arranged in sequence above the pressure plate (4). The panel (7) is provided with a rotatable cover plate (8) and two levers (6). The two levers (6) are arranged opposite to each other on both sides of the rotation axis of the cover plate (8). When the cover plate (8) rotates, it can push one of the levers (6). Through the lever (6), the button assembly (3) is pushed to drive the moving contact assembly (23) to swing between the two sets of stationary contact assemblies (22).

14. The switch structure according to claim 7, characterized in that: The contact plate (235) includes a first contact portion (2351) and a second contact portion (2352) arranged in parallel, and a third contact portion (2353) connected between the first contact portion (2351) and the second contact portion (2352). The third contact portion (2353) is connected to the wiring assembly (21). The first contact portion (2351) is located between two stationary contact assemblies (22). The swing plate (234) of the moving contact assembly (23) is disposed on the first contact portion (2351).

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