Wall switch

Abstract

The utility model provides a wall switch, which comprises a moving contact, a static contact, a button and a shell for accommodating the moving contact, the static contact and the button, the button is rotatably arranged, one end of the button facing the moving contact is provided with a groove, an elastic piece is arranged in the groove, one end of the elastic piece is connected with one end of a swing rod, and the other end of the swing rod is connected with a switch. The other end of the swing rod is a driving part which is in sliding fit with the moving contact, and the driving part of the swing rod is provided with a graphene layer which is used for driving the moving contact to swing around the fulcrum to be in contact with or disconnected from the static contact. According to the wall switch provided by the utility model, the graphene layer is arranged at one end of the swing rod, the material structure is more reasonable, the wall switch is better in use hand feeling, safer in use, good in conductivity and more reliable in on-off, and meanwhile, the button, the elastic piece and the swing rod are fixedly installed into a whole, so that the structure is more compact and the stability is higher.

Description

Technical Field

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

[0002] Currently, in wall switches on the market, both the toggle switch and the lever are made of plastic, and they are fixed together by a spring. This increases assembly time and friction between the moving contact and the lever, affecting the switch feel. To improve this problem, existing technologies often add lubricating oil between the moving contact and the lever. However, internal lubricating oil can reduce the conductivity and switching capacity of the product components. Utility Model Content

[0003] The purpose of this invention is to overcome at least one defect of the prior art and provide a wall switch that does not require the addition of lubricating oil, has a good switching feel, and is highly reliable.

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

[0005] This utility model provides a wall switch, including a moving contact, a stationary contact, a button, and a housing that accommodates the moving contact, the stationary contact, and the button. The button is rotatably configured and has a groove at one end facing the moving contact. An elastic element is provided in the groove, and one end of the elastic element is connected to one end of a swing rod. The other end of the swing rod is a driving part that slides with the moving contact. The driving part of the swing rod is provided with a graphene layer for driving the moving contact to swing around a fulcrum and contact or disconnect from the stationary contact.

[0006] In one possible implementation, the graphene layer of the pendulum is a curved structure.

[0007] In one possible implementation, the pendulum is a metal pendulum or a plastic pendulum.

[0008] In one possible implementation, the rocker arm is a cylindrical structure comprising an upper part and a lower part, wherein the diameter of the cross-section of the upper part is smaller than the diameter of the cross-section of the lower part, a blocking part is formed at the connection between the upper and lower parts, and one end of the elastic member is mounted on the upper part and abuts against the blocking part.

[0009] In one possible implementation, the moving contact has a sliding groove on the top side of its middle portion and is supported on the fulcrum on its bottom side. The driving part of the swing arm is placed in the sliding groove and slides with the bottom wall of the sliding groove through the graphene layer. After the driving part slides to both sides of the fulcrum, it can drive the moving contact to swing around the fulcrum to both sides respectively.

[0010] In one possible implementation, the housing includes a cover plate, a middle cover, and a base. The moving contact and the stationary contact are disposed within the base. The middle cover is fitted onto the base and has a first through hole. A button is rotatably mounted on the middle cover and has an elastic element and a swing rod at one end that passes through the first through hole. The cover plate is rotatably mounted on the middle cover and is capable of driving the button to swing.

[0011] In one possible implementation, the button includes a fixedly connected support post and a pressing part, the support post and the pressing part being arranged perpendicularly to form a T-shaped button, the groove being disposed within the support post, and the support post passing through the first through hole.

[0012] In one possible implementation, the pressing part has protrusions on opposite sides of its middle portion, and the middle cover has two corresponding support platforms. The pressing part is rotatably mounted on the two support platforms via the two protrusions, and the middle portion of the middle cover has the first through hole located between the two support columns.

[0013] In one possible implementation, the pressing part is a long strip structure with first limiting parts at both ends and corresponding second limiting parts provided inside the housing. When one end of the pressing part is pressed, the first and second limiting parts at that end abut against each other, so that the button has a fixed swing angle.

[0014] In one possible implementation, the wall switch includes a moving contact and two stationary contacts. The moving contact has a long plate-like structure, with a moving contact point at each end. The moving contact has a sliding groove bent in the middle. Each stationary contact has a corresponding stationary contact point. The wall switch includes three terminals. One terminal is integrally formed with a fulcrum and electrically connected to the moving contact through the fulcrum. The other two terminals are integrally formed with the two stationary contacts respectively.

[0015] Compared with the prior art, the wall switch of this utility model uses a rocker arm with a graphene layer, which can reduce the friction between the moving contact and the rocker arm, making the wall switch feel better to use, and it has good conductivity without the need for adding lubricant.

[0016] Furthermore, the curved graphene layer helps reduce friction between the moving contact and the lever, improves the smoothness of the switch feel, enhances conductivity, and increases switching capability.

[0017] Furthermore, the cylindrical structure of the rocker arm includes an upper part and a lower part with different cross-sectional diameters, so that the connection between the upper and lower parts forms a blocking part, which facilitates the limiting and fixing of the elastic element.

[0018] Furthermore, a sliding groove is provided on the top side of the middle part of the moving contact, and the bottom side of the middle part of the moving contact is supported on the fulcrum, so that the graphene layer of the swing rod is placed in the sliding groove, which facilitates the swing rod to slide to both ends of the sliding groove, driving the moving contact to rotate around the fulcrum, so that the moving contact is engaged or separated from the corresponding stationary contact.

[0019] Furthermore, a protrusion is provided in the middle of the button, and a support platform is provided on the housing accordingly. The button is mounted and limited on the support platform through the protrusion to form a rotating shaft. The button can rotate around the rotating shaft. By providing a protrusion on the button and a support platform on the housing, the distance between the rotating shaft and the cover plate can be reduced during production, thereby reducing the thickness of the wall switch.

[0020] Furthermore, the lever is a metal lever, and the graphene layer can be electroplated on the drive part of the lever, which improves reliability and enhances the feel of the wall switch. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the appearance of the wall switch of this utility model;

[0022] Figure 2 This is an exploded view of the wall switch of this utility model;

[0023] Figure 3 This is a sectional view of the button, rocker arm, and elastic element of this utility model after installation;

[0024] Figure 4 and Figure 5 These are structural schematic diagrams of the contact assembly of this utility model from different perspectives;

[0025] Figure 6 This is a sectional view of the button and rocker arm of this utility model after installation;

[0026] Figure 7 and Figure 8 These are structural schematic diagrams of the button of this utility model from different perspectives;

[0027] Figure 9 This is a cross-sectional view of the wall switch of this utility model;

[0028] The reference numerals in the attached drawings include: button 1; rocker arm 2; elastic element 3; contact assembly 4; moving contact 41; stationary contact 42; cover plate 51; middle cover 52; base 53; groove 11; graphene layer 21; blocking part 22; upper part 23; lower part 24; support column 12; pressing part 13; protrusion 133; support platform 134; first limiting part 131; second limiting part 132; fulcrum 43; sliding groove 411. Detailed Implementation

[0029] The specific embodiments of this utility model are further described below with reference to the accompanying drawings. The scope of protection of this utility model is not limited to the description of the following embodiments.

[0030] The wall switch includes a button 1, a lever, an elastic element 3, a contact assembly 4, and a housing for accommodating the above components. The elastic element 3 connects the button 1 and the lever. The contact assembly 4 includes a moving contact 41 and a stationary contact 42. When the cover plate 51 is pressed, the cover plate 51 drives the button 1 to swing, which in turn drives the lever to swing. The end of the lever away from the button 1 contacts the moving contact 41, slidingly engaging with and pressing against the moving contact 41, causing the moving contact 41 to swing and contact or disconnect from the stationary contact 42, thus connecting or disconnecting the circuit. The wall switch includes at least one set of moving contacts 41 and stationary contacts 42 for controlling the on / off state of the circuit. The elastic element 3 provides a buffer when the lever contacts the moving contact 41 and also provides pressure when the lever presses against the moving contact 41, enhancing the stability of the structure. When the moving contact 41 contacts the stationary contact 42, it reduces the wobbling between the button 1, the moving contact 41, and the stationary contact 42, enhancing the switching capability.

[0031] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model provides a wall switch, including a contact assembly 4, a button 1, an elastic element 3, a rocker arm 2, and a housing. The housing includes a cover plate 51, a middle cover 52, and a base 53. The contact assembly 4 includes a moving contact 41, a stationary contact 42, and a terminal block. The contact assembly 4 is installed inside the base 53. The middle cover 52 covers the base 53 and fixes the contact assembly 4 inside the base 53. The middle cover 52 has a first through hole. The button 1 is rotatably mounted on the middle cover 52, and one end of the button 1, which has the elastic element 3 and the rocker arm 2, passes through the first through hole. The button 1 passes through the middle cover 52. A groove 11 is provided at one end facing the moving contact 41. The elastic element 3 is disposed in the groove 11, with one end abutting against the bottom of the groove 11 and the other end connected to one end of the swing rod 2. The other end of the swing rod 2 is a driving part that cooperates with the moving contact 41. The driving part of the swing rod 2 is provided with a graphene layer 21. The graphene layer 21 contacts the moving contact 41. The graphene layer 21 and the moving contact 41 slide together, driving the moving contact 41 to swing around the fulcrum 43 and contact or disconnect from the stationary contact 42. The cover plate 51 is rotatably mounted on the middle cover 52 and can drive the button 1 to swing.

[0032] The cover plate 51, the middle cover 52, and the base 53 are stacked and fixedly installed along the thickness direction of the wall switch. The elastic element 3 may be, but is not limited to, a compression spring, a spring, etc. Figure 3 This is a schematic diagram of the structure after the button 1, elastic element 3, and rocker arm 2 are installed.

[0033] Compared with the prior art, the wall switch of this utility model adopts a swing rod 2 with a graphene layer 21, which makes the wall switch feel better, safer to use, and has good conductivity, making the switching more reliable. At the same time, the button 1, elastic element 3 and swing rod 2 are fixedly installed as a whole, making the structure more compact and more stable.

[0034] Preferred, such as Figure 3 As shown, the rocker arm 2 includes a blocking part 22. The elastic element 3 is installed at one end of the rocker arm 2 and is limited by the blocking part 22. The graphene layer 21 at the other end of the rocker arm 2 has a curved structure. After the rocker arm 2 contacts the moving contact 41, the curved graphene layer 21 helps to reduce the friction between the moving contact 41 and the rocker arm 2, improve the smoothness of the switch feel, enhance conductivity, and improve the switching capability. When the button 1 is pressed, the other end of the rocker arm 2 can swing back and forth, contacting and pressing the moving contacts 41 at both ends respectively, so that the moving contacts 41 contact the corresponding stationary contacts 42, thus connecting or disconnecting the circuit.

[0035] Further, such as Figure 3 As shown, the swing arm 2 is a cylindrical structure, including an upper part 23 and a lower part 24. The diameter of the cross-section of the upper part 23 is smaller than the diameter of the cross-section of the lower part 24. The connection between the upper part 23 and the lower part 24 forms the blocking part 22. One end of the elastic member 3 is installed on the upper part 23 and abuts against the blocking part 22.

[0036] Preferably, the lever 2 is a metal lever or a plastic lever. When a metal lever is used, the graphene layer 21 can be electroplated onto the driving part of the lever 2; when a plastic lever is used, the graphene layer 21 can be sprayed onto the driving part of the lever 2. A metal lever can enhance the feel of the wall switch, while a plastic lever can reduce the weight of the wall switch.

[0037] like Figure 4 As shown, in this embodiment, the contact assembly 4 is provided with a fulcrum 43, which is fixedly installed inside the housing. The middle part of the moving contact 41 is installed on the fulcrum 43. The middle part of the moving contact 41 is bent, and a sliding groove 411 is formed on the top side of the middle part of the moving contact 41 to slide with the rocker arm 2. The bottom side of the middle part of the moving contact 41 is supported on the fulcrum 43. The driving part of the rocker arm 2 is placed in the sliding groove 411 and slides with the bottom wall of the sliding groove 411 through the graphene layer 21. After the driving part slides to both sides of the fulcrum 43, it can drive the moving contact 41 to swing around the fulcrum 43 to both sides respectively.

[0038] Preferred, such as Figure 3 , Figure 6 , Figure 7 and Figure 8As shown, the button 1 includes a fixedly connected support column 12 and a pressing part 13. The support column 12 and the pressing part 13 are arranged perpendicularly to form a T-shape for the button 1. The groove 11 is disposed within the support column 12, and the support column 12 passes through the first through hole. After the button 1 is installed inside the middle cover 52, the length direction of the support column 12 is consistent with the thickness direction of the wall switch. Figure 6-Figure 8 This is a schematic diagram of the button 1 of this utility model at different angles.

[0039] Further, such as Figure 2 As shown, the pressing part 13 has protrusions 133 on two opposite sides of its middle portion, and the middle cover 52 has two corresponding support platforms 134. The pressing part 13 is rotatably mounted on the two support platforms 134 through the two protrusions 133. The middle portion of the middle cover 52 is provided with the first through hole between the two support columns 12.

[0040] The button 1 is installed and limited inside the housing by the cooperation of the protrusion 133 on its pressing part 13 with the support platform 134 on the housing. After the button 1 is installed on the middle cover 52, the protrusion 133 of the button 1 forms a rotating shaft. By pressing the two ends of the cover plate 51, the button 1 can rotate around the rotating shaft.

[0041] Furthermore, in a preferred embodiment, in order to reduce the thickness of the wall switch, the distance between the cover plate 51 of the wall switch and the rotation axis of the button 1 can be reduced as much as possible, so that the pressing range of the cover plate is reduced, and the structure of the wall switch is more exquisite and beautiful.

[0042] Further, such as Figure 9 As shown, the pressing part 13 is a long strip structure with a first limiting part 131 at both ends. A corresponding second limiting part 132 is provided inside the housing. When one end of the pressing part 13 is pressed, the first limiting part 131 and the second limiting part 132 at that end abut against each other, so that the button 1 has a fixed swing angle.

[0043] Furthermore, the button 1 is integrally cast, which can reduce assembly time and increase production capacity.

[0044] In another possible implementation, the button 1 can also be mounted by a support post 12 and a pressing part 13, wherein the support post 12 is provided with a first mounting part and the pressing part 13 is provided with a second mounting part that cooperates with the first mounting part.

[0045] Furthermore, the first mounting part can be a snap-fit ​​structure, and the second mounting part can be a slot structure. The snap-fit ​​structure and the slot structure cooperate to fix the button 1 to the support column 12 and the pressing part 13. The advantage of this is that it is easy to disassemble, convenient for later maintenance, and easy to replace damaged parts, thus saving costs.

[0046] Preferred, such as Figure 9 As shown, the first limiting part 131 is a first protrusion protruding from both ends of the pressing part 13 toward the middle cover 52, and the second limiting part 132 is a second protrusion protruding from both ends of the middle cover 52 toward the cover plate 51. Since the button 1 is swingable, in order for the contact surfaces of the first protrusion and the second protrusion to fit together completely, the contact surfaces of the first protrusion and / or the second protrusion can be set as inclined surfaces. The specific inclination angle is designed according to the swing angle of the button 1.

[0047] In another possible implementation, the first limiting part 131 may not have the first boss, or the first limiting part 131 may be configured as a groove structure that cooperates with the second boss, which also falls within the protection scope of this application.

[0048] Preferably, the contact assembly 4 of this utility model includes one moving contact 41 and two stationary contacts 42. The moving contact 41 has a long plate-like structure, with a moving contact point at each end. Each stationary contact 42 has a corresponding stationary contact point. The moving contact 41 has a sliding groove 411 bent in the middle, and each stationary contact 42 has a corresponding stationary contact point. The two ends of the moving contact 41 can swing back and forth with the fulcrum 43 as the support point, so that the moving contacts at both ends contact or disconnect from the corresponding stationary contacts.

[0049] Preferably, the contact assembly 4 includes at least two terminals, which are electrically connected to the moving contact 41 and / or the stationary contact 42 respectively, and the terminals are used to connect and fix external wires.

[0050] Furthermore, in this embodiment, the contact assembly 4 includes three terminals. One terminal is integrally formed with the fulcrum 43 and electrically connected to the moving contact 41 through the fulcrum 43. For example, this terminal is integrally formed with the fulcrum 43 and electrically connected to the moving contact 41 through the fulcrum 43. The other two terminals are electrically connected to two stationary contacts 42 respectively. Preferably, the other two terminals are integrally formed with the stationary contacts 42. Obviously, only one stationary contact 42 can be provided to control the on / off state of only one circuit.

[0051] The contact assembly 4 of the wall switch provided in this application includes three terminals, which can be used in a single-pole double-pole switch, namely the L terminal, the N terminal and the L1 terminal. There are multiple wiring methods for the single-pole double-pole switch. For example, two sets of the wall switches are connected in series in the circuit. When both sets of wall switches are turned on at the same time, the entire circuit will be turned on and the electrical equipment can be used. Alternatively, two sets of wall switches are connected in parallel in the circuit. The two sets of wall switches can control the start and stop of the electrical equipment respectively.

[0052] Furthermore, the middle cover 52 is provided with a plurality of first limiting structures, which limit the button 1.

[0053] The base 53 is provided with a plurality of second limiting structures, which fix the contact assembly 4 to the base 53.

[0054] 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.

[0055] 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 wall switch, comprising a moving contact (41), a stationary contact (42), a toggle switch (1), and a housing accommodating the moving contact (41), the stationary contact (42), and the toggle switch (1), wherein the toggle switch (1) is rotatably disposed and has a groove (11) at one end facing the moving contact (41), characterized in that, The groove (11) is provided with an elastic element (3), and one end of the elastic element (3) is connected to one end of the swing rod (2). The other end of the swing rod (2) is a driving part that slides with the moving contact (41). The driving part of the swing rod (2) is provided with a graphene layer (21) for driving the moving contact (41) to swing around the fulcrum (43) and contact or disconnect from the stationary contact (42).

2. The wall switch according to claim 1, characterized in that, The graphene layer (21) of the swing arm (2) has a curved structure.

3. The wall switch according to claim 1, characterized in that, The pendulum (2) is a metal pendulum or a plastic pendulum.

4. The wall switch according to claim 1, characterized in that, The swing arm (2) is a cylindrical structure, including an upper part (23) and a lower part (24). The diameter of the cross-section of the upper part (23) is smaller than the diameter of the cross-section of the lower part (24). A blocking part (22) is formed at the connection between the upper part (23) and the lower part (24). One end of the elastic member (3) is installed on the upper part (23) and abuts against the blocking part (22).

5. The wall switch according to claim 1, characterized in that, The moving contact (41) has a sliding groove (411) on the top side of its middle part and is supported on the fulcrum (43) on the bottom side of its middle part. The driving part of the swing rod (2) is placed in the sliding groove (411) and slides with the bottom wall of the sliding groove (411) through the graphene layer (21). After the driving part slides to both sides of the fulcrum (43), it can drive the moving contact (41) to swing around the fulcrum (43) to both sides respectively.

6. The wall switch according to claim 1, characterized in that, The housing includes a cover plate (51), a middle cover (52), and a base (53). The moving contact (41) and the stationary contact (42) are disposed inside the base (53). The middle cover (52) covers the base (53). The middle cover (52) is provided with a first through hole. The button (1) is rotatably mounted on the middle cover (52) and has an elastic element (3) and a swing rod (2) at one end passing through the first through hole. The cover plate (51) is rotatably mounted on the middle cover (52) and can drive the button (1) to swing.

7. The wall switch according to claim 6, characterized in that, The button (1) includes a fixedly connected support column (12) and a pressing part (13). The support column (12) and the pressing part (13) are arranged perpendicularly to form a T-shaped button (1). The groove (11) is disposed in the support column (12). The support column (12) passes through the first through hole.

8. The wall switch according to claim 7, characterized in that, The pressing part (13) has protrusions (133) on opposite sides of its middle part. The middle cover (52) has two support platforms (134) corresponding to it. The pressing part (13) is rotatably mounted on the two support platforms (134) through the two protrusions (133). The middle part of the middle cover (52) is provided with the first through hole between the two support columns (12).

9. The wall switch according to claim 7, characterized in that, The pressing part (13) is a long strip structure with a first limiting part (131) at both ends. A corresponding second limiting part (132) is provided inside the housing. When one end of the pressing part (13) is pressed, the first limiting part (131) and the second limiting part (132) at that end abut against each other, so that the button (1) has a fixed swing angle.

10. The wall switch according to claim 5, characterized in that, The wall switch includes a moving contact (41) and two stationary contacts (42). The moving contact (41) is a long plate structure. Each end of the moving contact (41) includes a moving contact point. The moving contact (41) is bent in the middle and provided with the sliding groove (411). Each stationary contact (42) is provided with a corresponding stationary contact point. The wall switch includes three terminals. One terminal is integrally formed with a fulcrum (43) and is electrically connected to the moving contact (41) through the fulcrum (43). The other two terminals are integrally formed with the two stationary contacts (42) respectively.

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