Trigger structure with limiting protection and intelligent switch

Abstract

The utility model provides a trigger structure with limit protection and an intelligent switch. The trigger structure with limit protection comprises a trigger portion, a button and a microswitch. The microswitch comprises a protective shell and a driving rod which can do telescopic motion relative to the protective shell; the key presses the driving rod of the microswitch through the trigger part, and the driving rod is pressed to generate retraction motion so as to trigger the microswitch; wherein the trigger part is provided with a first surface, the trigger part drives the driving rod through the first surface, the first surface at least covers the specified area of the upper surface of the protective shell, and the specified area is set as follows: when the first surface drives the driving rod to retract into the protective shell, the first surface abuts against the upper surface of the protective shell, and the protective shell supports the trigger part; therefore, the trigger part and the key are limited to continue to press. The trigger structure with limit protection can protect the internal structure of the microswitch from being damaged.

Description

Technical Field

[0001] The utility model relates to the field of smart homes, and in particular to a trigger structure with limit protection and an intelligent switch. Background Art

[0002] Smart switches play a crucial role in smart home systems, serving as a bridge between users and their home environments. Their primary function is to enable intelligent control of home lights and other appliances through a network connection. With features such as remote control, timed on / off, one-touch full shutdown, scene modes, and voice control, smart switches enhance the convenience and comfort of daily life.

[0003] The electronic switches of smart switches on the market generally use tactile switches or micro switches. The internal structure of micro switches is relatively complex. The micro switch includes a protective shell, a drive rod, a contact system, and a spring system. When the drive rod is pressed down beyond the limit, it is easy to damage the spring system. Smart switches on the market generally use a button to directly trigger the micro switch. The button extends downward to form a trigger rod, which contacts the micro switch with the trigger rod. Because the trigger rod is thin, the contact surface with the micro switch is very small. When the button is pressed, the trigger rod generates a large pressure, which can easily push the drive rod beyond the limit and damage the micro switch. Utility Model Content

[0004] One purpose of the present utility model is to provide a trigger structure with limit protection, wherein the button presses the drive rod through the trigger part. Since the first surface covers at least a specified area of ​​the upper surface of the protective shell, when the first surface abuts against the protective shell, the contact area between the first surface and the protective shell is large and the abutment pressure is small, thereby preventing the protective shell from being crushed by the trigger part; and the trigger part is supported by the protective shell, thereby preventing the drive rod from being pressed beyond the limit stroke, thereby protecting the internal structure of the micro switch from damage.

[0005] Another object of the present utility model is to provide a trigger structure with limit protection, wherein the protective shell of the microswitch supports the button through the trigger part, the lower limit of the button is provided by the protective shell of the microswitch, and the dimensional chain between the microswitch and the button is extremely short, so that the lower limit of the button is more precise; and when the trigger part abuts against the protective shell, the microswitch has been triggered, that is, when the button moves to the lower limit, the microswitch will inevitably be triggered, and the situation where the microswitch has not been triggered when the button moves to the lower limit position will not occur.

[0006] Another object of the present invention is to provide a trigger structure with limit protection, wherein the specified area is 20% of the upper surface area of ​​the protective shell to ensure that the contact area between the first surface and the protective shell is large enough, so that the abutment pressure is small enough to ensure that the protective shell will not be deformed under the pressure of the first surface, and can stably support the trigger part to avoid damage to the micro switch.

[0007] Another object of the present utility model is to provide a trigger structure with limit protection, wherein the first surface is the entire surface of the trigger portion facing the micro switch; thereby, the first surface is increased as much as possible, and the first surface has no raised structure, so as to ensure that the first surface can cover at least 20% of the upper surface area of ​​the protective shell, thereby avoiding damage to the micro switch.

[0008] Another object of the present utility model is to provide a trigger structure with limit protection, wherein the trigger part can not only protect the micro switch from damage, but also cooperate with the protective shell to provide a lower limit for the button, and can also provide a reset force. The structure is simple, does not occupy the thickness of the first shell, and provides structural support for thinning the first shell.

[0009] Another object of the present invention is to provide a trigger structure with position limiting protection, wherein the driving portion and the supporting protrusions are arranged in a crisscross manner so that the relative movement between the driving portion and the supporting protrusions does not interfere with each other, thereby avoiding a sticky feeling when pressing.

[0010] Another object of the present invention is to provide a trigger structure with position limiting protection, wherein the driving rod is arranged at a position close to the center of the semicircle to reduce the pressing stress generated by the trigger part.

[0011] Another object of the present invention is to provide a trigger structure with limit protection, wherein the micro switch is embedded in the third recess so that the micro switch is closer to the trigger part, thereby achieving the successful triggering of the micro switch without the need for a protruding structure on the lower surface of the trigger part.

[0012] Another object of the present invention is to provide a trigger structure with limit protection, wherein a portion of the key is sunken into the first recess so that the key and the first recess overlap in the thickness direction, thereby reducing the thickness of the switch panel.

[0013] Another object of the present invention is to provide an intelligent switch, wherein the circuit board is accommodated in the accommodating groove, so that the circuit board does not occupy the thickness of the intelligent switch located outside the wall, allowing the switch panel to be thinner.

[0014] Another object of the present invention is to provide an intelligent switch, wherein the three elastic arms and the three triggering parts are all located in the area of ​​the accommodating groove within the projection of the first shell, so as to avoid interference between the elastic arms and the first through hole of the bottom shell.

[0015] To achieve at least one of the above objectives, according to a first aspect of the present invention, a trigger structure with position limit protection is provided, comprising a trigger portion, a button, and a micro switch; the button is disposed on a first side of the trigger portion; the micro switch is disposed on a second side of the trigger portion, which is opposite to the first side; the micro switch comprises a protective shell and a drive rod capable of telescopic movement relative to the protective shell; the button presses the drive rod of the micro switch through the trigger portion, and the drive rod is pressed to generate a retracting movement to trigger the micro switch;

[0016] In which, the trigger part has a first surface, and the trigger part drives the driving rod through the first surface. The first surface covers at least a specified area of ​​the upper surface of the protective shell. The specified area is set to: when the first surface drives the driving rod to retract the protective shell, the first surface abuts against the upper surface of the protective shell, and the protective shell supports the trigger part, thereby limiting the trigger part and the button from continuing to press.

[0017] Furthermore, the trigger portion is constructed as a plate-shaped structure, the first surface is the entire surface of the trigger portion facing the micro switch; and the designated area is 20% of the upper surface area of ​​the protective shell.

[0018] Furthermore, it also includes a first shell, and the button is movably connected to the first shell; the first shell is extended with an elastic arm, and the trigger part is integrally formed at the free end of the elastic arm; the elastic force of the elastic arm acts on the button through the trigger part, thereby providing a reset force for the button.

[0019] Furthermore, the elastic arm is combined with the trigger portion to form a reset member, and the reset member provides a reset force for the button; the trigger portion is provided with a support protrusion toward the button, and the support protrusion maintains an abutment state with the button.

[0020] Furthermore, the button is provided with a driving part at a position corresponding to the supporting protrusion, and the button is abutted against the supporting protrusion through the driving part; the driving part and the supporting protrusion are both constructed as strip-shaped protrusions, and the two are arranged crisscrossed; the end of the trigger part away from the elastic arm is semicircular, and the driving rod of the micro switch is arranged at a position close to the center of the semicircle.

[0021] In some embodiments, a third recess is provided on a side of the first housing facing the micro switch at a position corresponding to the micro switch, and the micro switch is embedded in the third recess.

[0022] In some embodiments, the button is rotatably connected to the first shell, the first shell is provided with a first recess toward the button, and a portion of the button is sunk into the first recess.

[0023] According to the second aspect of the present utility model, an intelligent switch is provided. The above-mentioned trigger structure with limit protection also includes a bottom shell and a circuit board, the first shell cover is arranged on the bottom shell, the circuit board is installed on the side of the first shell facing the bottom shell, and the micro switch is arranged on the circuit board; the bottom shell is provided with a receiving groove, and the circuit board is accommodated in the receiving groove.

[0024] Furthermore, the number of the trigger parts is three, the elastic arms and the trigger parts are arranged in a one-to-one correspondence, the trigger parts on both sides are bent toward the outside respectively, and the three elastic arms and the three trigger parts are all located in the area of ​​the accommodating groove projected on the first shell.

[0025] In some embodiments, the button includes a button unit, the number and position of the micro switches correspond to the button units, and each button unit triggers the corresponding micro switch; when the number of the button units is one, two or three, the number of the elastic arms and the trigger parts is maintained at three.

[0026] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and do not limit the present invention. The above-mentioned utility model contents can be combined arbitrarily. These and other purposes of the present invention will be fully reflected in the following detailed description and accompanying drawings.

[0027] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0029] Figure 1 This is an exploded view of an intelligent switch according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic structural diagram of an assembled intelligent switch according to an embodiment of the present invention;

[0031] Figure 3This is a structural diagram of the button and the first housing installed in accordance with an embodiment of the present invention;

[0032] Figure 4 This is a structural diagram of a button bracket according to an embodiment of the present invention;

[0033] Figure 5 This is a structural diagram of the key panel and key bracket installed in accordance with an embodiment of the present invention;

[0034] Figure 6 This is a structural diagram of a button bracket according to an embodiment of the present invention;

[0035] Figure 7 This is a structural diagram of the first housing according to an embodiment of the present invention;

[0036] Figure 8 This is a schematic diagram of the positional relationship between the reset portion and the electronic switch in one embodiment of the utility model;

[0037] Figure 9 for Figure 2 A vertical cross-sectional view of the AA portion;

[0038] Figure 10 for Figure 9 A magnified view of part B in FIG;

[0039] Figure 11 for Figure 10 A partial enlarged view of the cross-sectional view of the CC portion;

[0040] Figure 12 This is a schematic diagram of the installation and coordination between the button, the first housing, and the circuit board according to an embodiment of the present invention;

[0041] Figure 13 This is a partially enlarged cross-sectional view of an intelligent switch according to an embodiment of the present invention;

[0042] Figure 14 This is a schematic diagram of the installation and matching of the button and the first housing according to an embodiment of the present utility model;

[0043] Figure 15 This is a structural diagram of the first housing according to an embodiment of the present invention;

[0044] Figure 16 This is a structural diagram of a first housing and a circuit board according to an embodiment of the present invention;

[0045] Figure 17 This is a schematic structural diagram of a circuit board according to an embodiment of the present invention;

[0046] Figure 18This is a schematic diagram of the structure of the first housing, the circuit board and the bottom shell in one embodiment of the present utility model;

[0047] Figure 19 This is a cross-sectional view of the first housing, circuit board, and bottom housing of one embodiment of the present invention;

[0048] Figure 20 This is a three-dimensional cross-sectional view of a bottom shell of an embodiment of the present utility model;

[0049] Figure 21 This is a structural diagram of a double-button smart switch according to an embodiment of the present invention;

[0050] Figure 22 This is a schematic diagram of the circuit board structure of a double-button smart switch according to an embodiment of the present invention;

[0051] Figure 23 This is a structural diagram of a single-button smart switch according to an embodiment of the present invention;

[0052] Figure 24 This is a schematic diagram of the circuit board structure of a single-button smart switch according to an embodiment of the present invention;

[0053] Figure 25 This is a schematic diagram of the micro switch structure of an embodiment of the utility model;

[0054] Figure 26 It is a structural schematic diagram of an integrated button in one embodiment of the utility model. DETAILED DESCRIPTION

[0055] In the description of the present invention, the terms "inside", "outside", "horizontal", "vertical", "up", "down", "top", "bottom", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0056] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features.

[0057] In the description of this utility model, unless otherwise specified or limited, the term "connection" and other terms should be understood in a broad sense. For example, it can mean fixed connection, detachable connection, or integration; it can mean mechanical connection, electrical connection, or mutual communication; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0058] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. The technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0059] Smart switches typically feature illuminated text or patterns on the buttons. Inside the panel, LED lights and a light-shielding shield are installed. The light from the LED lights is evenly distributed through the shield and then shines onto the buttons, causing the text or pattern on the buttons to illuminate. Ultra-thin smart switches have a very thin panel, resulting in insufficient light-shielding space and poor light-shielding. When the illuminated surface of a button is large, noticeable unevenness can be seen.

[0060] To solve the above problems, according to the first aspect of the present invention, a light-transmitting structure is provided, which is not only applicable to smart switches, but also to other products with key panels. Figure 1-Figure 26 , the light-transmitting structure provided by the present utility model will be specifically explained. Figure 2 、 Figure 9 、 Figure 10 and Figure 11 As shown, Figure 9 for Figure 2 The vertical cross-sectional view of the AA portion, Figure 10 for Figure 9 A magnified view of part B. Figure 11 for Figure 10A partial enlarged view of the cross-sectional view of the CC portion of the . The light-transmitting structure includes a first shell 1, a button 2 and a circuit board 3. The button 2 is arranged on a first side of the first shell 1; the circuit board 3 is arranged on a second side of the first shell 1 opposite to the first side; the first shell 1 is provided with a light source space 111 and a reflection space 112 adjacent to the light source space 111, the button 2 is provided with a light-transmitting area 21 at a relative position to the reflection space 112, a light guide channel 113 is provided between the light source space 111 and the reflection space 112, and the circuit board 3 is provided with a light-emitting component 35 inside the light source space 111; the light emitted by the light-emitting component 35 passes through the light guide channel 113 to irradiate the reflection space 112, and then passes through the reflection space 112 to the light-transmitting area 21 of the button 2, and finally passes through the light-transmitting area 21. The light-transmitting area 21 can be a through hole or a hollow text or pattern. The light passes through the light-transmitting area 21 to form a small luminous hole or text or pattern on the outer surface of the button 2.

[0061] The light-transmitting structure provided by the present invention has a light-transmitting component 35 whose light is reflected by the reflection space 112 to the light-transmitting area 21 through the light-guiding channel 113, thereby preventing the light-emitting component 35 from directly irradiating the light-transmitting area 21. The light produces a uniform light effect during the reflection process. In addition, the expansion of the reflection space 112 in the horizontal direction does not cause the thickness of the first shell 1 to increase, so that there is sufficient space for the light to achieve a better uniform light effect, solving the problem of uneven display of the light-emitting surface of the button 2 due to insufficient uniform light space in the ultra-thin smart switch 100, and enabling large-area light emission of the ultra-thin smart switch 100. The ultra-thin can be understood as: when the smart switch 100 is installed on the wall, the thickness of the components of the smart switch 100 located outside the wall (i.e., the first shell 1 and the button 2) is very thin, thereby making the smart switch 100 visually ultra-thin.

[0062] The first side of the first shell 1 is Figure 9 The upper side of the first shell 1, the second side of the first shell 1 is Figure 9 The light source space 111 and the reflection space 112 may be disposed within the first housing 1 or formed by the first housing 1 and other components. The light guide channel 113 may be a channel-shaped structure, or a through hole, a notch, or other structure capable of allowing light to pass through. The light-emitting element 35 may be an LED lamp or other electronic component capable of emitting light.

[0063] Furthermore, the first shell 1 is injection-molded from white plastic, and the inner walls of the light source space 111 and the reflection space 112 are both white to reduce light brightness loss.

[0064] In one exemplary embodiment, the light reflected by the reflection space 112 is irradiated onto the light-transmitting area 21, and the light is transmitted through the light-transmitting area 21; in another exemplary embodiment, a light-homogenizing plate (not shown in the figure) is provided between the reflection space 112 and the light-transmitting area 21, and the light reflected by the reflection space 112 is homogenized by the light-homogenizing plate and irradiated onto the light-transmitting area 21, and then transmitted through the light-transmitting area 21 to enhance the light-homogenizing effect.

[0065] In one exemplary embodiment, the inner wall of the reflection space 112 is constructed as a frosted surface to allow light to be diffusely reflected in the reflection space 112, thereby enhancing the uniform light effect; in another exemplary embodiment, the inner wall of the reflection space 112 is constructed as a smooth surface to allow light reflection to be brighter.

[0066] Further, if Figure 10 As shown, the direction of the light source space 111 toward the reflection space 112 is set as a first direction, and the direction of the reflection space 112 toward the light-transmitting area 21 is set as a second direction. In a preferred embodiment, the first direction is perpendicular to the second direction, so that when the light-transmitting area 21 is large, the light emitted by the light-emitting element 35 is prevented from being directly emitted from the light-guiding channel 113 to the light-transmitting area 21; and the light source space 111 and the reflection space 112 are arranged side by side along the first direction, which reduces the stacking of the two in the vertical direction, making the thickness of the first shell 1 thinner. Among them, the first direction and the second direction have been Figure 10 The winning bid was awarded.

[0067] In some embodiments, as Figure 10 As shown, the reflection space 112 includes a first reflection surface arranged facing the light source space 111, and the first reflection surface is inclined to the first direction. The first reflection surface is the surface that receives direct light from the light-emitting component 35, and the first reflection surface is inclined to ensure that sufficient light is reflected to the light-transmitting area 21, thereby enhancing the brightness of the light-transmitting area 21. Furthermore, the angle between the first reflection surface and the first direction is greater than 45°, that is, the first reflection surface is more inclined to the vertical plane, so that the light is reflected multiple times in the reflection space 112 to obtain a better uniform light effect. In an exemplary embodiment, the angle between the first reflection surface and the first direction is 60°.

[0068] Further, if Figure 7 、 Figure 10 and Figure 11As shown, the reflection space 112 is constructed as a trumpet-shaped structure with open ends at the top and bottom, and a larger upper part and a smaller lower part. The circuit board 3 is covered on the lower end of the trumpet-shaped structure; the trumpet-shaped structure includes a first reflection surface, a second reflection surface opposite to the first reflection surface, and a third reflection surface and a fourth reflection surface respectively arranged on both sides of the first reflection surface. The first reflection surface, the third reflection surface, the second reflection surface and the fourth reflection surface are mutually enclosed to form the side wall of the trumpet-shaped structure, and the light guiding channel 113 is opened on the second reflection surface; the direction of the reflection space 112 toward the light-transmitting area 21 is set to the second direction, and the first reflection surface, the third reflection surface and the fourth reflection surface are respectively inclined to the second direction. The inclination angle of the first reflection surface relative to the second direction is greater than the inclination angle of the third reflection surface, and greater than the inclination angle of the fourth reflection surface, so as to ensure that sufficient light is reflected to the light-transmitting area 21 and enhance the brightness of the light-transmitting area 21. In an exemplary embodiment, the inclination angle of the first reflecting surface relative to the second direction is 30°, the inclination angles of the third reflecting surface and the fourth reflecting surface relative to the second direction are both 25°, and the inclination angle of the second reflecting surface relative to the second direction is 2°.

[0069] Since the light emitting element 35 is a point light source, its light intensity gradually decreases from the center to the periphery. Therefore, when the light is irradiated to the first reflective surface, the brightness at the center of the first reflective surface will be slightly higher than the brightness on both sides thereof, resulting in uneven reflection on the first reflective surface. To solve this problem, in some embodiments, such as Figure 11 、 Figure 10 and Figure 7 As shown, the light-guiding channel 113 is provided with a light-blocking portion 114 at a position directly opposite to the light-emitting element 35. The light-blocking portion 114 is used to block a portion of the light from the light-emitting element 35 that is incident on the reflecting space 112, thereby reducing the brightness of the light-emitting element 35 irradiating the center position of the first reflecting surface. The light can be irradiated more evenly to the first reflecting surface, thereby achieving a better uniform light effect in the reflecting space 112. In addition, during the design, the width and height of the light-blocking portion 114 can be designed to a more appropriate size according to the actual illumination effect to obtain a better uniform light effect. In an exemplary embodiment, as Figure 11 As shown, the bottom of the second reflecting surface abuts against the circuit board 3, and the bottom of the second reflecting surface has a long strip notch, and the long strip notch and the circuit board 3 form the light guiding channel 113; the light blocking portion 114 extends from top to bottom on the second reflecting surface, and the light blocking portion 114 is constructed in a square shape. There is a light-transmitting gap between the bottom of the light blocking portion 114 and the circuit board 3, and the light blocking intensity can be adjusted by adjusting the height and width of the light blocking portion 114, thereby achieving a better uniform light effect.

[0070] In some embodiments, as Figure 10and Figure 15 As shown, the light source space 111 is formed by the top wall of the light source and the side wall of the light source, and the light guide channel 113 is opened on the side wall of the light source; the circuit board 3 is covered on the bottom of the light source space 111 to form a light source accommodating cavity between the light source space 111 and the circuit board 3, and the light-emitting component 35 is accommodated in the light-emitting cavity, thereby preventing the light of the light-emitting component 35 from directly irradiating the light-transmitting area 21 of the button 2, and preventing the light of the light-emitting component 35 from escaping from the gap in the first shell 1.

[0071] Further, if Figure 10 and Figure 11 As shown, the surface of the circuit board 3 is white at locations corresponding to the light source cavity and the reflective space 112 to prevent color cast of light reflected from the circuit board 3. In one exemplary embodiment, the surface of the circuit board 3 is screen-printed with white ink at locations corresponding to the light source cavity and the reflective space 112 to achieve color change. In other embodiments, the color of these locations can also be changed by applying a white film.

[0072] In some embodiments, as Figure 2-Figure 6 and Figure 10 As shown, the button 2 includes a button bracket 22 made of plastic and a button panel 23 made of glass. The button bracket 22 is rotatably connected to the first shell 1, and the button panel 23 is adhered to the button bracket 22. The side of the button panel 23 facing the button bracket 22 is covered with a light-shielding layer. The light-shielding layer is hollowed out to form the light-transmitting area 21. The button bracket 22 has a light-transmitting hole 221 at a position corresponding to the light-transmitting area 21. The light reflected by the reflection space 112 passes through the light-transmitting hole 221 to the light-shielding layer, and then passes through the light-transmitting area 21. The rotational connection can be understood as a connection method that can rotate relative to each other, including an axial-hole rotational connection, a snap-on rotational connection, etc. The light-shielding layer includes a color layer facing the button panel 23 and a black paint layer facing the button bracket 22. The color layer is used to make the button panel 23 appear colored, and the black paint layer is used to block light. The light shielding layer is laser engraved to form hollow text or patterns, which form the light-transmitting area 21. Light passing through the light-transmitting area 21 forms a luminous pattern or text on the key panel 23. The key panel 23 is made of AG frosted glass, which has a slight light uniforming effect.

[0073] It is worth mentioning that the buttons of existing smart switches are generally made of plastic material that is integrally injection molded, which has poor rigidity. When the button is thin, the deformation of the button is large, and it is easy for the electronic switch to fail to be triggered. The button 2 of this embodiment adopts a structure in which a plastic bracket is matched with a glass panel, so that the button 2 has both the easy processing and shaping ability of plastic material and the rigidity of glass. This allows the button 2 to meet the connection function while having strong resistance to deformation. When the button 2 is thinned, it can avoid being too thin and easily deformed, which would cause the electronic switch 31 to fail to be triggered. The electronic switch 31 can be a micro switch, a touch switch, a membrane switch, etc. In an exemplary embodiment, the electronic switch 31 is a micro switch 311.

[0074] Furthermore, the light-transmitting hole 221 is constructed as a square through hole, and the light-transmitting area 21 is located within the light-transmitting hole 221. Figure 10 and Figure 11 As shown, the size of the light-transmitting hole 221 is slightly larger than the size of the upper opening of the reflection space 112 .

[0075] According to the second aspect of the present invention, Figure 1-Figure 26 As shown, a smart switch 100 is also provided, comprising the above-mentioned light-transmitting structure and a bottom shell 4. The first shell 1 is covered on the bottom shell 4. The bottom shell 4 is provided with a receiving groove 41, and the circuit board 3 is received in the receiving groove 41. The first shell 1 can be understood as the middle shell of the smart switch 100. When the smart switch 100 is mounted on a wall, the first shell 1 is located outside the wall, the front of the first shell 1 is covered with the button 2, and the side of the first shell 1 is exposed outside the wall.

[0076] This embodiment of the utility model places the circuit board 3 within the receiving groove 41 of the bottom shell 4, eliminating the circuit board 3 from occupying space within the first shell 1 and making the first shell 1 thinner. Furthermore, the placement of the circuit board 3 within the receiving groove 41 allows the first shell 1 to be thinner while still leaving sufficient space for the aforementioned light-transmitting structure, thereby achieving an ultra-thin design for the smart switch 100.

[0077] Further, if Figure 17 and Figure 18As shown, the circuit board 3 carries both weak and strong current circuits. The circuit board 3 is provided with a power module (not shown), a relay 32, a wireless communication module 33, a processing module 34, an electronic switch 31, and the light-emitting element 35. Placing these electronic components on the same circuit board 3 can reduce the number of circuit boards 3 and save space occupied by the circuit boards 3, allowing the receiving groove 41 to accommodate the entire circuit part, thereby reducing the thickness of the panel of the smart switch 100. The panel of the smart switch 100 can be understood as the portion located outside the wall when the smart switch 100 is installed on the wall.

[0078] Furthermore, the power module and relay 32 are disposed on the lower surface of the circuit board 3. The lower surface of the circuit board 3 is also provided with wiring terminals 36 for connecting the neutral wire, the live wire, and the control wires for controlling the controlled device. The power module is connected to the neutral wire and the live wire via the wiring terminals 36, and is used to convert household AC power into low-voltage DC power, thereby powering the weak current circuit. The relay 32 is electrically connected to the processing module 34. The processing module 34 controls the relay 32 to switch on and off in response to the triggering of the electronic switch 31. The relay 32 is connected to the controlled device via the wiring terminals 36. The relay 32 switches on and off to cut off or connect power to the controlled device, thereby realizing the switching function.

[0079] Further, if Figure 17 As shown, the processing module 34 is integrated into the wireless communication module 33, and the wireless communication module 33 is arranged on the upper surface of the circuit board 3 to enhance the signal strength of the wireless communication module 33; further, the wireless communication module 33 has a communication antenna 331, and the circuit board 3 has a communication gap 37 at the position corresponding to the communication antenna 331 to prevent the circuit board 3 from generating a shielding effect.

[0080] Further, if Figure 18 As shown, the side wall of the accommodating groove 41 is provided with an escape groove 46 at a position corresponding to the wireless communication module 33 . The escape groove 46 is used to make room for the wireless communication module 33 to avoid interference between the wireless communication module 33 and the bottom shell 4 .

[0081] Existing smart switches with key lighting functions are prone to light leakage in the gaps between the keys and between the keys and the middle shell. This is especially true for ultra-thin smart switches. Since the keys and middle shell are thin, there is not enough space to design a light-shielding structure, which makes light leakage very likely to occur.

[0082] To solve the problem of light leakage of the intelligent switch, in some embodiments, such as Figure 3 、 Figure 7 、 Figure 10 as well as Figure 11As shown, the first shell 1 is provided with a light transmitting structure 11, and the button 2 is provided with the light-transmitting area 21 at a relative position to the light-transmitting structure 11. The light emitted by the light-emitting component 35 is transmitted to the light-transmitting area 21 of the button 2 through the light-transmitting structure 11, and then passes through the light-transmitting area 21; the button 2 is provided with a light-shielding portion 223 protruding toward the first shell 1, and the light-shielding portion 223 surrounds at least two sides of the light-transmitting area 21. The first side of the first shell 1 is provided with a first recess 121, and the light-shielding portion 223 is at least partially sunken into the first recess 121.

[0083] The interlaced arrangement of the light shielding portion 223 and the first recess 121 in the vertical direction prevents light from escaping from the side of the key 2, thus preventing light leakage. The light shielding portion 223 may be a structure such as a light shielding rib or a light shielding plate. The fact that the light shielding portion 223 is at least partially sunken into the first recess 121 can be understood as overlapping the light shielding portion 223 and the first recess 121 in the thickness direction, thereby preventing light from escaping from the gap between the light shielding portion 223 and the first recess 121.

[0084] The light transmission structure 11 includes the light source space 111, reflective space 112, and light guiding channel 113 described above. The light emitting element 35 is disposed within the light source space 111. Transmission includes light propagation methods such as direct emission and reflection. The technical details of the light source space 111, reflective space 112, light guiding channel 113, light-transmitting region 21, and light emitting element 35 have been described in detail above and will not be repeated here.

[0085] In addition, since the circuit board 3 is accommodated in the accommodating groove 41 of the bottom shell 4 , the circuit board 3 does not occupy space in the first shell 1 , so that the first shell 1 has enough space to set the first recess 121 .

[0086] When the smart switch 100 is a multi-key smart switch 100, the key 2 includes multiple key units 20, and the electronic switches 31 are arranged one-to-one with the key units 20. Each key unit 20 can be pressed to trigger the corresponding electronic switch 31. There is a second dividing seam 272 between each key unit 20. The second dividing seam 272 is the main part of the key 2 that leaks light. In order to avoid light leakage from the second dividing seam 272, in the embodiment of the present utility model, Figure 3 、 Figure 7 as well as Figure 11As shown, a second recess 122 is provided on the first side of the first shell 1 in the corresponding area of ​​the first boss 13, and the height of the light-shielding portion 223 at the corresponding position of the second recess 122 is higher than the height of the light-shielding portion 223 at other positions, and the light-shielding portion 223 close to the second dividing seam 272 is located in the second recess 122, so that the light-shielding portions 223 on both sides of the second dividing seam 272 can be embedded deeper in the first shell 1 to prevent light leakage from the gaps between the key units 20.

[0087] Further, if Figure 15 and Figure 10 As shown, a first boss 13 is provided on the second side of the first shell 1, and the first boss 13 is embedded in the bottom shell 4. The first boss 13 uses the space of the bottom shell 4 to provide space for the second recess 122, thereby ensuring the shading effect without increasing the thickness of the first shell 1.

[0088] Further, if Figure 3-Figure 7 as well as Figure 10 and Figure 11 As shown, the key 2 includes a key bracket 22 and a key panel 23. The key bracket 22 is rotatably connected to the first housing 1, and the key panel 23 is adhered to the key bracket 22. The light shielding portion 223 is provided on the key bracket 22, and the projection of the key bracket 22 on the first housing 1 is contained within the first recess 121. When the key 2 is pressed, the key bracket 22 can be embedded in the first recess 121. Therefore, when reserving a pressing gap, the thickness of the key bracket 22 does not need to be taken into account. Only the gap between the key panel 23 and the first housing 1 needs to be considered. This reduces the pressing gap of the key 2 and makes the overall panel thickness thinner.

[0089] Further, if Figure 6 and Figure 21 As shown, Figure 6 This is a structural diagram of the button bracket 22 of the three-button smart switch 100. Figure 21It is a structural diagram of the two-button smart switch 100. The light-shielding portion 223 includes a first light-shielding rib 2231, a second light-shielding rib 2232, and a third light-shielding rib 2233. The first light-shielding rib 2231, the second light-shielding rib 2232, and the third light-shielding rib 2233 surround the three sides of the light-transmitting hole 221 to prevent light from leaking out from the side of the button 2 and the tail end of the button 2. Furthermore, the first light-shielding rib 2231 and the second light-shielding rib 2232 are respectively located on both sides of the light-transmitting hole 221, and the third light-shielding rib 2233 is located on the side of the light-transmitting hole 221 away from the rotation connection. Since the closer the light-shielding rib is to the light source, the better the light-shielding effect, in one embodiment, the distance between the third light-shielding rib 2233 and the light-transmitting hole 221 is less than 4 mm, so that the light-shielding effect of the third light-shielding rib 2233 is better. Furthermore, the first light-shielding rib 2231 , the second light-shielding rib 2232 and the third light-shielding rib 2233 are connected as a whole to form a tight light-shielding barrier, thereby improving the light-shielding effect.

[0090] In some embodiments, as Figure 7 and Figure 3 As shown, the first housing 1 is provided with a local recess 123 at a position corresponding to the light shielding portion 223. The local recess 123 is located within the first recess 121. When the button 2 is pressed, the light shielding portion 223 sinks into the local recess 123. The local recess 123 is used to provide space for the light shielding portion 223 to press down, thereby reducing the panel thickness of the smart switch 100.

[0091] In some embodiments, the key bracket 22 is made of black plastic so that the key bracket 22 has a light-absorbing function and reduces light leakage caused by light reflected by the key bracket 22 .

[0092] In some embodiments, as Figure 7 、 Figure 10 and Figure 11 As shown, a light-shielding enclosure 115 is protruding from the first side of the first housing 1. The light-shielding enclosure 115 surrounds the light outlet of the light transmission structure 11; the light-shielding portion 223 is disposed outside the light-shielding enclosure 115. The light outlet of the light transmission structure 11 is the upper opening of the reflective space 112. The light-shielding enclosure 115 protrudes from the upper surface of the first housing 1, while the light-shielding portion 223 protrudes from the lower surface of the button bracket 22. The light-shielding enclosure 115 and the light-shielding portion 223 form an upper-lower staggered structure to enhance the light-shielding effect.

[0093] Existing smart switches typically consist of a button, an electronic switch, a reset element, and a mid-shell. Pressing a button triggers the corresponding electronic switch and resets it when pressed down. When the pressing force is released, the button springs up under the reset element's force. To ensure consistent spring-up heights for each button, a limit hook is typically provided at the end of the button. This limit hook engages with the mid-shell to limit the upward spring-up limit of the button. The mid-shell has a snap-in position for the limit hook. The limit hook and the snap-in position occupy a considerable amount of space, resulting in a thicker button and mid-shell.

[0094] In order to solve the problem of thick buttons and middle shell, in the embodiment of the present utility model, the button 2 has a self-limiting function, which can limit the upper limit position without limiting the limit hook. Specifically, Figure 3 and Figure 9 As shown, the intelligent switch 100 further includes a reset member 14, which abuts against the button 2 to provide a reset force; the button 2 is rotatably connected to the first housing 1, and the rotating shaft of the rotatable connection is set as a first rotating shaft 151, and the button 2 has a first end close to the first rotating shaft 151 and a second end away from the first rotating shaft 151; Figure 14 、 Figure 13 and Figure 9 As shown, the direction from the first end to the second end is set as a fourth direction.

[0095] In the fourth direction, the reset member 14 is arranged between the first rotating shaft 151 and the second end, and there is a limit generating distance L1 between the first rotating shaft 151 and the first end, so that when the button 2 is not subjected to pressing force, the first end of the button 2 abuts against the first shell 1, so that the button 2 generates a limit constraint that restricts the second end from moving in the direction away from the first shell 1, so that the button 2 does not need a structure similar to a limit hook to generate an upper limit through its own abutment, so that the structure of the button 2 and the first shell 1 can be simplified and the thickness can be reduced. Among them, when the button 2 is connected to the first shell 1 through an axis-hole connection, the first rotating shaft 151 can be understood as a physical rotating shaft. When the connection method between the button 2 and the first shell 1 is not an axis-hole connection, the first rotating shaft 151 can also be understood as the axis of the rotational movement of the button 2. The fourth direction is opposite to the first direction described above.

[0096] like Figure 14As shown, the key 2 rotates about the first rotating shaft 151. When the key 2 is not pressed, the abutting force generated by the first end of the key 2 abutting against the first housing 1 generates an abutting torque relative to the first rotating shaft 151. This abutting torque is balanced by the reset torque generated by the elastic force of the reset member 14, and the moment arm of the reset torque is L3. Obviously, the moment arm of the abutting torque is the limit generation distance L1. If L1 is too short, the abutting torque is insufficient, resulting in a weak limit constraint and inconsistent heights of the second ends of the key units 20. If L1 is too long, the first rotating shaft 151 is too close to the second end, reducing the pressable area of ​​the key 2 and reducing the pressing feel. In this embodiment, the distance between the first and second ends is set to L2. The limit generation distance L1 satisfies the condition: 0.15 ≤ L1 / L2 ≤ 0.4. This ensures a strong limit constraint while improving the pressing feel of the key 2.

[0097] Further, if Figure 3 and Figure 10 As shown, the electronic switch 31 is arranged on the side of the first shell 1 away from the button 2; the button 2 is provided with a driving part 224 at the position corresponding to the electronic switch 31, and the driving part 224 directly or indirectly triggers the electronic switch 31; wherein, the direct or indirect triggering of the electronic switch 31 can be understood as that the driving part 224 can directly trigger the electronic switch 31, and can also indirectly trigger the electronic switch 31 through other structures. In one embodiment, a triggering part 142 is provided between the driving part 224 and the electronic switch 31, and the driving part 224 presses the triggering part 142 to trigger the electronic switch 31 through the triggering part 142. Figure 14 As shown, in the fourth direction, if the driving portion 224 is too close to the first rotating shaft 151, the pressing stroke of the tail end of the key 2 will be increased, and the deformation of the key 2 will increase, resulting in a larger pressing clearance for the key 2, which is not conducive to thinning the switch panel. If the driving portion 224 is too far away from the first rotating shaft 151, pressing the key panel 23 will be more laborious, affecting the pressing feel. To this end, in this embodiment, the distance between the driving portion 224 and the first rotating shaft 151 is L3, and L3 satisfies the relationship: 0.25≤L3 / L2≤0.55, so that the pressing clearance of the key 2 is controlled while ensuring the pressing feel of the key 2.

[0098] Further, if Figure 9 and Figure 10 As shown, the electronic switch 31 is located between the circuit board 3 and the first housing 1. The first housing 1 is covered by the bottom shell 4. The circuit board 3 and the electronic switch 31 are both accommodated in the accommodating groove 41. As a result, the circuit board 3 and the electronic switch 31 do not occupy the thickness of the smart switch 100 outside the wall surface, allowing the switch panel to be thinner.

[0099] Further, if Figure 3 、 Figure 12 and Figure 14 As shown, the first shell 1 is provided with a first rotating shaft 151, which is a physical shaft. The button 2 is provided with a first claw 25 adapted to the first rotating shaft 151, and the first claw 25 is clamped on the first rotating shaft 151 to realize the rotational connection between the button 2 and the first shell 1; the first rotating shaft 151 and the first claw 25 are both arranged in the area where the accommodating groove 41 is projected on the first shell 1, so that when the first claw 25 is clamped on the first rotating shaft 151, the first claw 25 can borrow the space of the accommodating groove 41, so that the structure of the first shell 1 related to the first rotating shaft 151 can sink into the accommodating groove 41, which is conducive to reducing the thickness of the smart switch 100 located outside the wall.

[0100] Further, if Figure 3 、 Figure 16 and Figure 14 As shown, the first boss 13 is embedded in the bottom housing 4, and the circuit board 3 is mounted on the first boss 13. The second recess 122 is provided in the area corresponding to the first boss 13, and the first rotating shaft 151 is provided in the second recess 122. The area corresponding to the first boss 13 can be understood as the shape and size of the first boss 13 corresponding to the second recess 122. The second recess 122 is recessed downward, causing the first housing 1 to protrude downward to form the first boss 13. The first rotating shaft 151 is provided in the second recess 122, allowing the structure of the first housing 1 related to the first rotating shaft 151 to sink into the accommodating groove 41.

[0101] In some embodiments, as Figure 3 and Figure 13As shown, the button 2 includes multiple button units 20, and the number and position of the electronic switches 31 correspond to the button units 20. Each button unit 20 triggers the corresponding electronic switch 31, and each button unit 20 is connected by a connecting portion 24. The button units 20 are connected as a whole by the connecting portion 24, which has the following beneficial effects: the gap width between each button unit 20 can be kept consistent; it is convenient for the button 2 to be assembled into the first shell 1, improving assembly efficiency; because the circuit board 3 carries a strong electric circuit, when installing the smart switch 100, there is a risk of electric shock if the first shell 1 is disassembled. Therefore, when installing the smart switch 100, only the button 2 can be disassembled, and the button units 20 are connected as a whole by the connecting portion 24, which makes it easy to disassemble the button 2 as a whole, improving the installation efficiency of the smart switch 100. It is worth mentioning that thanks to the self-limiting structure of the button 2, there is no need to set a structure similar to a limit hook at the second end of the button 2, making it more convenient for users to disassemble the button 2, further improving the installation efficiency of the smart switch 100.

[0102] However, the key unit 20 being connected as a whole through the connecting portion 24 will bring another problem to the disassembly of the key 2: the key 2 is generally connected to the first shell 1 through multiple first claws 25. If each first claw 25 is disassembled one by one, some of the first claws 25 will be in a clamped state, while the other claws will be in a disengaged state. In this case, the connecting portion 24 will be greatly twisted and deformed, thereby damaging the connecting portion 24.

[0103] To solve this problem, Figure 3 、 Figure 12 as well as Figure 13As shown, there are two first claws 25, one on each side of the button 2. The button 2 is provided with at least one first hook 26 between the two first claws 25. The first housing 1 is provided with a second hook 152 adapted to fit the first hook 26. The first hook 26 is engaged with the second hook 152, and the first hook 26 is located on the line connecting the two first claws 25. The engaging force between the first claw 25 and the first rotating shaft 151 is greater than the engaging force between the first hook 26 and the second hook 152, thereby forming a strong-weak connection. The first claw 25 provides the primary limit, while the first hook 26 provides the auxiliary limit. When the button 2 is disassembled, when the first claw 25 disengages, the first hook 26 adjacent to the first claw 25 also automatically disengages, thereby preventing significant distortion of the connecting portion 24 and protecting the connecting portion 24 from damage. Furthermore, when both first claws 25 disengage, the first hook 26 automatically disengages, facilitating removal of the button 2. It is worth mentioning that since there are only two first claws 25 and they are located on both sides of the button 2, the distance between the two first claws 25 is large. Increasing the deformation distance is equivalent to reducing the deformation per unit length, thereby reducing the twisting deformation of the connecting part 24 and avoiding damage to the connecting part 24.

[0104] It is worth mentioning that the second hook 152 provides a downward constraint for the button 2. When both sides of the button 2 are pressed, the second hook 152 can prevent the middle part of the button 2 from arching upward, thereby improving the constraint on the button unit 20 and preventing the electronic switch 31 from being unable to be triggered. Figure 13 As shown, the second hook 152 protrudes from the first housing 1, allowing it to support the key 2. When the middle portion of the key 2 is pressed, the second hook 152 prevents the middle portion of the key 2 from being depressed. In summary, the second hook 152 can both constrain the key 2 from arching upward and prevent it from sinking downward. Its function is similar to that of the first rotating shaft 151, but the first hook 26 has a weaker engagement force than the first claw 25. The second hook 152 and the first hook 26 cooperate to form a constraint similar to a rotational pair, enhancing the stability of the rotational connection between the key 2 and the first housing 1.

[0105] Furthermore, the first hook 26 is located on the line connecting the two first claws 25, so as to avoid the first hook 26 interfering with the rotation of the button 2. A hook protrusion is provided at the end of the first hook 26, and the hook protrusion protrudes laterally from the first hook 26. Figure 14From the perspective of , it can be seen that when the button 2 is installed on the first shell 1, the end of the hook protrusion is exactly in a straight line with the center position of the first rotating shaft 151, so as to ensure that during the rotation of the button 2, the first hook 26 can always restrain the button 2 from arching upward, and the first hook 26 will not interfere with the rotation of the button 2.

[0106] In some embodiments, as Figure 18 As shown, the bottom shell 4 is provided with two first countersunk holes 42, and the first countersunk holes 42 can be inserted with a first screw (not shown in the figure), and the bottom shell 4 is externally mounted by the first screw; the first shell 1 is provided with a first through hole 161 at a position corresponding to the first countersunk hole 42, and the first through hole 161 is used to accommodate the nut of the first screw, so that the nut of the first screw does not increase the thickness of the first shell 1. Furthermore, the four corners of the bottom shell 4 are respectively provided with second countersunk holes 45, and the second countersunk holes 45 can be inserted with a second screw (not shown in the figure), and the bottom shell 4 is externally mounted by the second screw, and the first shell 1 is provided with a second through hole 162 at a position corresponding to the second countersunk hole 45, and the second through hole 162 is used to accommodate the nut of the second screw. Among them, the first screw is suitable for connecting a hidden box, and the second screw is suitable for connecting a wooden panel, a cabinet, a desktop, etc.

[0107] like Figure 20 As shown, a protrusion 43 is provided at a position corresponding to the first countersunk hole 42 on the side of the bottom shell 4 facing away from the button 2. The protrusion 43 prevents the side wall of the first countersunk hole 42 from protruding from the side of the bottom shell 4 facing the button 2, that is, the protrusion 43 provides a sinking space for the first countersunk hole 42, so that the nut of the first screw can be partially sunk into the upper surface of the bottom shell 4, thereby reducing the volume of the nut located in the first shell 1 and avoiding interference between the first shell 1 and the nut of the first screw.

[0108] In some embodiments, as Figure 3 and Figure 10 As shown, the reset member 14 includes an elastic arm 141 extending from the first housing 1 and a trigger portion 142 disposed at the free end of the elastic arm 141. The trigger portion 142 is located between the driving portion 224 and the electronic switch 31. The driving portion 224 indirectly triggers the electronic switch 31 by driving the trigger portion 142. The elastic force of the elastic arm 141 is transmitted to the driving portion 224 through the trigger portion 142 to provide a reset force. The trigger portion 142 and the elastic arm 141 are integrally formed with the first housing 1.

[0109] In some embodiments, as Figure 3 and Figure 13As shown, the key 2 includes a key bracket 22 and a key panel 23 fixedly connected to the key bracket 22. The key bracket 22 is rotatably connected to the first housing 1. The key bracket 22 is provided with an abutment protrusion 222 near the first end, facing the first housing 1. The abutment protrusion 222 abuts the first housing 1 to restrict the second end of the key 2 from moving away from the first housing 1. In this embodiment, the key 2 is abutted against the first housing 1 by the abutment protrusion 222 to achieve second-end position restriction. Compared to abutting the key 2 against the first housing 1 via a flat surface or edge, the height of the abutment protrusion 222 is easier to adjust and the dimensional accuracy is easier to control. Researchers can adjust the height of the abutment protrusion 222 to adjust the second end position of the key 2. Through multiple experiments, the optimal height of the abutment protrusion 222 can be determined, achieving precise control of the second end position restriction. Furthermore, the abutment protrusion 222 is located at the end of the first end of the key bracket 22.

[0110] When existing smart switches have more than two buttons, the gap widths between the buttons become uneven. To address this, researchers have designed a one-piece button, connecting the buttons together during manufacturing to ensure consistent gap widths. However, one-piece buttons are typically injection-molded from plastic, resulting in poor rigidity. When the buttons are thin, they deform significantly, making it difficult to trigger the electronic switch. To address this, existing technologies have only been able to increase the thickness of the buttons to improve their deformation resistance. However, increasing the thickness of the buttons not only hinders the thinning of the switch panel but also creates a linkage effect between the buttons, causing the electronic switch to be triggered by the buttons.

[0111] In order to solve the above problems, in the embodiment of the present utility model, Figure 3-Figure 6 As shown, the button 2 includes a button bracket 22 and a button panel 23; the button bracket 22 is rotatably connected to the first shell 1, and the button bracket 22 includes a plurality of bracket units 225, and each of the bracket units 225 is connected as a whole through a connecting portion 24; the number and position of the electronic switches 31 correspond to the bracket units 225, and each of the bracket units 225 triggers the corresponding electronic switch 31 respectively; wherein, the button panel 23 includes a plurality of panel units 231, and the panel units 231 are fixedly connected to the bracket units 225 one by one, and the rigidity of the panel units 231 is greater than the rigidity of the bracket units 225.

[0112] In this embodiment, the panel unit 231 and the bracket unit 225 are fixedly connected as a whole, which improves the deformation resistance of the bracket unit 225 and avoids the situation where the electronic switch 31 cannot be triggered due to excessive deformation. At the same time, since the panel unit 231 has a large rigidity, the thickness can be reduced while ensuring a small deformation, thereby reducing the overall thickness of the button 2. Moreover, since the connecting portion 24 and the bracket unit 225 are connected as one, the rigidity of the connecting portion 24 and the bracket unit 225 is relatively low, so that the flexibility of the connecting portion 24 is retained, thereby reducing the linkage between the bracket units 225 and avoiding the electronic switch 31 being triggered by the linkage of the button bracket 22.

[0113] The interlocked triggering can be understood as when one bracket unit 225 is pressed to trigger the corresponding electronic switch 31, the adjacent bracket unit 225 is activated, causing the adjacent electronic switch 31 to be erroneously triggered. The bracket unit 225 can trigger the electronic switch 31 directly or indirectly by driving other components. In one embodiment, a triggering portion 142 is disposed between the bracket unit 225 and the electronic switch 31, and the bracket unit 225 indirectly triggers the electronic switch 31 by abutting against and driving the triggering portion 142. The panel unit 231 is made of a relatively rigid material, while the bracket unit 225 is made of a relatively less rigid material. In one embodiment, the bracket unit 225 and the connecting portion 24 are integrally injection-molded from a plastic material, and the panel unit 231 is constructed of a thin sheet of AG frosted glass. The panel unit 231 can be fixedly connected to the bracket unit 225 by bonding, snapping, riveting, or other methods. In one embodiment, the panel unit 231 is bonded to the bracket unit 225.

[0114] Further, if Figure 6 As shown, the key bracket 22 has a third end proximal to the first rotation axis 151 and a fourth end distal to the first rotation axis 151. The direction from the third end toward the fourth end is defined as a fifth direction. In this fifth direction, the first rotation axis 151 is located within the length of the connecting portion 24. According to the principle of leverage, in the fifth direction, the closer the key 2 is to the first rotation axis 151, the smaller the rotation amplitude. In this embodiment, the first rotation axis 151 is positioned at a corresponding position on the connecting portion 24. This ensures that when the bracket unit 225 rotates about the first rotation axis 151, the bracket unit 225 rotates at the corresponding position on the connecting portion 24 to a minimum. Consequently, the deformation of the connecting portion 24 is minimized, thereby weakening the linkage effect between adjacent bracket units 225 and preventing the electronic switch 31 from being triggered by the key bracket 22. The third end of the key bracket 22 corresponds to the first end of the key 2, and the fourth end of the key bracket 22 corresponds to the second end of the key 2.

[0115] It is worth noting that if the deformation of the connection portion 24 is too great, the portion where the bracket unit 225 is connected to the connection portion 24 will also deform along with the connection portion 24. Since the key panel 23 is relatively rigid and less susceptible to deformation, this will inevitably generate a force that separates the key bracket 22 and the key panel 23, causing the key panel 23 to become debonded or damaged. In this embodiment, the first rotating shaft 151 is positioned at a corresponding position on the connection portion 24 to minimize deformation of the connection portion 24 and prevent debonding or damage to the key panel 23. The fifth direction is the same as the fourth direction described above.

[0116] In existing one-piece buttons, the connection portion is generally set at the end of the button. According to the principle of lever, the farther the button 2 is from the first rotation axis 151, the greater the rotation amplitude. Correspondingly, the deformation of the connection portion 24 will also be greater. According to the above description, if the connection portion 24 is too deformed, the linkage effect between adjacent bracket units 225 will be obvious, and it is easy to cause the button panel 23 to become debonded or damaged. In order to avoid excessive deformation of the connection portion 24, in this embodiment, Figure 4 As shown, two adjacent bracket units 225 are divided by a first dividing slit 271 and a second dividing slit 272. The first dividing slit 271 extends from the connecting portion 24 to the third end, and the second dividing slit 272 extends from the connecting portion 24 to the fourth end. In other words, the connecting portion 24 of the one-piece key 2 provided in this embodiment is not located at the end of the key 2. This prevents excessive deformation of the connecting portion 24 caused by excessive rotation of the end of the key 2, thereby weakening the linkage effect between the bracket units 225 and preventing debonding or damage to the key panel 23.

[0117] If the tail end of the button 2 is pressed, the tail end of the button 2 is subjected to a downward pressing force, the button 2 is subjected to a downward restraining force at the position corresponding to the first rotating shaft 151, and the button 2 is subjected to an upward elastic force at the position corresponding to the reset member 14; if the distance between the position of the first rotating shaft 151 and the tail end of the button 2 is too large, the deformation of the button 2 will be too large, and it is easy to fail to trigger the electronic switch 31. Therefore, in this embodiment, if Figure 4 As shown, in the fifth direction, the length of the first dividing seam 271 is L4, the length of the button bracket 22 is L5, and L4 and L5 satisfy the relationship: L4 / L5≥0.1, so that the position of the connecting part 24 and the first rotating shaft 151 is closer to the tail end of the button 2, shortening the distance between the tail end of the button 2 and the first rotating shaft 151, reducing the deformation amount caused by pressing the button 2, and avoiding the situation where the electronic switch 31 cannot be triggered.

[0118] Further, if Figure 4As shown, in the fifth direction, the length of the connecting portion 24 is L6. If L6 is too short, the connection strength of the connecting portion 24 will be low, resulting in a loose connection between the key units 20. If L6 is too long, the deformation of the connecting portion 24 will be large, and the key panel 23 may be debonded or damaged. The linkage effect between the bracket units 225 will be strong. Therefore, in this embodiment, L6 satisfies the relationship: 0.1≤L6 / L5≤0.3, so that the connecting portion 24 has a small deformation while ensuring connection strength.

[0119] Further, if Figure 12 As shown, the direction of the button bracket 22 toward the first shell 1 is the sixth direction (not shown in the figure). In the sixth direction, the thickness of the connecting portion 24 is d1, and the d1 satisfies the condition: 1.2mm≤d1≤2mm, so that the connecting portion 24 has a certain flexibility while ensuring the connection strength to weaken the linkage effect between the bracket units 225. Figure 12 The vertical downward direction.

[0120] In some embodiments, as Figure 12 As shown, the connecting portion 24 protrudes from the side of the button bracket 22 facing the first shell 1, and the connecting portion 24 is recessed in the side of the button bracket 22 facing away from the first shell 1, so that the cross-section of the connecting portion 24 presents a downwardly recessed U-shape. Compared with the direct-connection type connecting portion 24, this embodiment adopts a U-shaped connecting portion 24, which increases the width of the connecting portion 24 in disguise, thereby increasing the flexibility of the connecting portion 24 and preventing the connecting portion 24 from causing the bracket unit 225 to deform and causing the button panel 23 to become debonded or damaged.

[0121] In some embodiments, as Figure 5 、 Figure 3 as well as Figure 10 As shown, in the fifth direction, the length of the key panel 23 is greater than the length of the key bracket 22; the first housing 1 is provided with the first recess 121. When the panel unit 231 is pressed, the fourth end of the corresponding bracket unit 225 is embedded in the first recess 121. This is equivalent to only the key panel 23 of the key 2 being located above the first housing 1, while the key bracket 22 is sunken into the first housing 1. This eliminates the need for the entire key 2 to be located above the first housing 1, thereby reducing the overall thickness of the switch panel. Thanks to the greater rigidity of the key panel 23, the key panel 23 can be made very thin, ultimately presenting the visual effect of an extremely ultra-thin key 2.

[0122] Moreover, since the bracket unit 225 will sink into the first recess 121 when pressed, the thickness of the bracket unit 225 does not need to be taken into account when reserving the pressing gap. Only the gap between the key panel 23 and the first shell 1 needs to be considered, so that the pressing gap of the key 2 can be reduced and the overall thickness of the panel is thinner.

[0123] In some embodiments, as Figure 9 、 Figure 14 and Figure 13 As shown, the reset member 14 abuts against the key bracket 22 to provide a reset force. When the key bracket 22 is not pressed, the third end of the key bracket 22 abuts against the first housing 1 to restrict the fourth end of the key bracket 22 from moving away from the first housing 1. This allows the key 2 to generate an upper limit position through its own abutment without the need for a structure similar to a limit hook, which helps reduce the thickness of the key 2 and the first housing 1. The principle and technical details of the self-limiting function of the key 2 are described in detail above and will not be repeated here.

[0124] In some embodiments, as Figure 3 and Figure 9 As shown, the first shell 1 is covered on the bottom shell 4, and the circuit board 3 is accommodated in the accommodating groove 41 of the bottom shell 4. The circuit board 3 carries a weak current circuit and a strong current circuit, and the button 2 covers the first through hole 161 of the first shell 1. Among them, the circuit board 3 is accommodated in the accommodating recess, which can prevent the circuit board 3 from occupying the space of the first shell 1 and make the first shell 1 thinner. Since the circuit board 3 carries a strong current circuit, there is a risk of electric shock if the first shell 1 is disassembled when installing the smart switch 100. Therefore, when installing the smart switch 100, only the button 2 can be disassembled to operate the mounting screws. The bracket unit 225 is connected as a whole through the connecting portion 24, which makes it easy to disassemble the button 2 as a whole, thereby improving the installation efficiency of the smart switch 100.

[0125] The electronic switches of smart switches on the market generally use touch switches or micro switches 311. The internal structure of the micro switch 311 is relatively complex. Figure 25 Figure 2 shows a schematic diagram of the structure of a micro switch 311. The micro switch 311 includes a protective housing 3111, a drive rod 3112, a contact system, and a spring system 3113. When the drive rod 3112 is pressed downward beyond its limit, the spring system 3113 is easily damaged. Commercially available smart switches typically trigger the micro switch 311 directly via a button. A trigger rod extends downward from the button, contacting the micro switch 311 with the trigger rod. Because the trigger rod is thin, the contact surface with the micro switch 311 is minimal. When the button is pressed, the trigger rod exerts a significant pressure, which can easily push the drive rod 3112 beyond its limit, damaging the micro switch 311.

[0126] In order to solve the problem that the micro switch 311 is easily damaged, in the embodiment of the present utility model, Figure 10 and Figure 25 As shown, the electronic switch 31 is a micro switch 311, which includes a protective shell 3111 and a driving rod 3112 that can move telescopically relative to the protective shell 3111; the button 2 presses the driving rod 3112 of the micro switch 311 through the trigger part 142, and the driving rod 3112 is pressed to generate a retraction movement to trigger the micro switch 311.

[0127] Among them, such as Figure 10 、 Figure 7 and Figure 8 As shown, Figure 8 This is a schematic diagram of the position and area relationship between the trigger part 142 and the micro switch 311. The trigger part 142 has a first surface, and the trigger part 142 drives the driving rod 3112 through the first surface. The first surface covers at least a specified area of ​​the upper surface of the protective shell 3111, and the specified area is set to: when the first surface drives the driving rod 3112 to retract the protective shell 3111, the first surface abuts against the upper surface of the protective shell 3111, and the protective shell 3111 supports the trigger part 142, thereby limiting the trigger part 142 and the button 2 from continuing to press.

[0128] In this embodiment, the button 2 presses the driving rod 3112 through the trigger part 142. Since the first surface covers at least a specified area of ​​the upper surface of the protective shell 3111, when the first surface abuts against the protective shell 3111, the contact area between the first surface and the protective shell 3111 is larger and the abutting pressure is smaller, thereby preventing the protective shell 3111 from being crushed by the trigger part 142; and the trigger part 142 is supported by the protective shell 3111, thereby preventing the driving rod 3112 from being pressed beyond the limit stroke, thereby protecting the internal structure of the micro switch 3111 from damage.

[0129] The first surface may be a plane or a curved surface. In this embodiment, the first surface is Figure 10 The lower surface of the trigger portion 142. The retraction of the driving rod 3112 into the protective shell 3111 can be understood as the driving rod 3112 moving to no longer protrude from the upper surface of the protective shell 3111.

[0130] In addition, it is worth noting that in existing intelligent switches, the pressing movement of the key requires a lower limit, and the lower limit of the key is generally provided by the first housing. The electronic switch is generally installed on a circuit board, which is installed in the first housing or the bottom housing. This results in a long dimensional chain between the key and the electronic switch, which easily leads to error accumulation. Ultimately, the electronic switch may not be triggered when the key moves to the lower limit position. In this embodiment, the protective shell 3111 of the microswitch 311 supports the key 2 through the trigger portion 142. The lower limit of the key 2 is provided by the protective shell 3111 of the microswitch 311. The dimensional chain between the microswitch 311 and the key 2 is extremely short, making the lower limit of the key 2 more precise. Moreover, when the trigger portion 142 abuts the protective shell 3111, the microswitch 311 is already triggered. That is, when the key 2 moves to the lower limit, the microswitch 311 will inevitably trigger, and the situation where the key 2 moves to the lower limit position but the microswitch 311 is not triggered will not occur.

[0131] Furthermore, the designated area is 20% of the upper surface area of ​​the protective shell 3111 to ensure that the contact area between the first surface and the protective shell 3111 is large enough, so that the abutting pressure is small enough to ensure that the protective shell 3111 will not be deformed under the pressure of the first surface, and can stably support the trigger part 142 to avoid damage to the micro switch 311.

[0132] Further, if Figure 10 and Figure 8 As shown, the trigger portion 142 is constructed as a plate-like structure, and the first surface is the entire surface of the trigger portion 142 facing the micro switch 311; thereby, the first surface is increased as much as possible, and the first surface has no raised structure to ensure that the first surface can cover at least 20% of the upper surface area of ​​the protective shell 3111 to avoid damage to the micro switch 311.

[0133] Further, if Figure 7-10 As shown, the first shell 1 is extended to form the elastic arm 141 , and the trigger portion 142 is integrally formed at the free end of the elastic arm 141 .

[0134] Further, if Figure 8 As shown, the end of the trigger portion 142 away from the elastic arm 141 is semicircular, and the driving rod 3112 of the micro switch 311 is set at a position close to the center of the semicircle to reduce the pressing stress generated by the trigger portion 142.

[0135] In some embodiments, as Figure 7 and Figure 10As shown, the elastic arm 141 is combined with the trigger portion 142 to form a reset member 14, and the reset member 14 provides a reset force for the button 2; wherein, the trigger portion 142 can not only protect the micro switch 311 from damage, but also cooperate with the protective shell 3111 to provide a lower limit for the button 2, and can also provide a reset force, and has a simple structure, does not occupy the thickness of the first shell 1, and provides structural support for thinning the first shell 1.

[0136] Furthermore, the trigger portion 142 is provided with a supporting protrusion 143 facing the button 2. The supporting protrusion 143 maintains an abutting state with the button 2, so that when the button 2 is not pressed, the elastic arm 141 is in a pre-compressed state, and the trigger portion 142 provides a pre-tightening force to prevent the button 2 from becoming loose. In addition, by adjusting the height of the supporting protrusion 143, the magnitude of the pre-tightening force and the restoring force provided by the trigger portion 142 can be adjusted, thereby improving the pressing feel of the button 2.

[0137] When the button 2 is pressed, the button 2 and the support protrusion 143 will have a horizontal relative movement, which will cause friction and make the pressing feel sticky. Figure 3 and Figure 10 As shown, the button 2 is provided with a driving portion 224 at a position corresponding to the support protrusion 143, and the button 2 is abutted against the support protrusion 143 through the driving portion 224; the driving portion 224 and the support protrusion 143 are both constructed as strip-shaped protrusions, and the two are arranged crisscrossly so that the relative movement between the driving portion 224 and the support protrusion 143 will not cause interference, thereby avoiding a sticky feeling when pressing.

[0138] In some embodiments, as Figure 10 and Figure 15 As shown, Figure 15 This is a perspective after the first housing 1 is flipped upside down. A third recess 17 is provided on the side of the first housing 1 facing the microswitch 311 at a position corresponding to the microswitch 311. The microswitch 311 is embedded in the third recess 17, bringing the microswitch 311 closer to the trigger portion 142. This allows the microswitch 311 to be successfully triggered without the need for a protruding structure on the lower surface of the trigger portion 142.

[0139] In some embodiments, as Figure 9 and Figure 10As shown, the first housing 1 is covered with the bottom housing 4, the circuit board 3 is mounted on the side of the first housing 1 facing the bottom housing 4, and the micro switch 311 is disposed on the circuit board 3. The circuit board 3 is mounted on the first housing 1, which brings the micro switch 311 closer to the first housing 1, thereby shortening the distance between the micro switch 311 and the trigger portion 142. This ensures that the micro switch 311 can be successfully triggered even without a protruding structure on the lower surface of the trigger portion 142, thereby protecting the micro switch 311 from damage.

[0140] Further, if Figure 8 and Figure 7 As shown, there are three trigger parts 142, and the elastic arms 141 and the trigger parts 142 are provided in a one-to-one correspondence. The trigger parts 142 on both sides are bent outwards. The three elastic arms 141 and the three trigger parts 142 are all located in the area where the accommodating groove 41 is projected on the first shell 1 to avoid interference between the elastic arms 141 and the first through holes 161. Among them, the elastic arms 141 are all straight arms extending toward the fourth direction. Since the first shell 1 is provided with the first through hole 161, the positions of the left and right elastic arms 141 are offset toward the middle respectively. In order to make the positions of the left and right trigger parts 142 correspond to the micro switch 311, the left trigger part 142 is bent to the left, and the right trigger part 142 is bent to the right. The trigger part 142 located in the middle extends in the same direction as the elastic arm 141, and the ends of the trigger parts 142 are both semicircular. The triggering portions 142 on the left and right sides respectively cover 39% of the area of ​​the upper surface of the corresponding protective shell 3111 , and the triggering portion 142 in the middle covers 40% of the area of ​​the upper surface of the corresponding protective shell 3111 .

[0141] Existing smart switches are usually installed by fixing with screws. However, the screwing process will cause the bottom shell to deform, and the deformation of the bottom shell may be transmitted to the circuit board and the electronic switch, causing them to shift, thereby affecting the normal triggering of the electronic switch. To avoid this problem, in the existing technology, the circuit board carrying weak current is usually fixed to the middle shell. Since the middle shell is not affected by the deformation of the bottom shell, the deformation of the bottom shell is avoided from affecting the circuit board. This solution generally uses two methods to fix the circuit board: the first is to fix the circuit board directly to the middle shell with screws; the second is to fix a guard plate on the lower side of the middle shell, and the circuit board is clamped and fixed between the guard plate and the middle shell. Although these two methods can isolate the impact of the deformation of the bottom shell to a certain extent, their installation and disassembly process is relatively cumbersome, and it is difficult to improve assembly efficiency.

[0142] To solve the above problems, in the embodiment of the present invention, a new intelligent switch 100 is proposed, which adopts a new fixing structure. The structure adopts a first housing 1 provided with a positioning portion 18 for positioning the circuit board 3, which can ensure stability while improving the convenience of assembly and disassembly.

[0143] Specific as Figure 9 and Figure 10 As shown, the circuit board 3 has a first circuit surface facing the button 2 and a second circuit surface facing away from the button 2. The first circuit surface is provided with an electronic switch 31. The button 2 can directly or indirectly trigger the electronic switch 31 under the action of pressing force.

[0144] According to an embodiment of the present disclosure, the button 2 can directly trigger the electronic switch 31, for example, by directly passing through a hole provided in the first housing 1 to trigger the electronic switch 31 on the circuit board 3. The button 2 can also indirectly trigger the electronic switch 31, for example, by using some other structure to assist in triggering the electronic switch 31. Regarding indirect triggering, a possible implementation method is provided in one embodiment of the disclosure. Specifically, a trigger portion 142 is provided between the button 2 and the electronic switch 31, and the button 2 presses against the trigger portion 142 to trigger the electronic switch 31 through the trigger portion 142.

[0145] In addition, in a possible implementation, the first circuit surface of the circuit board 3 can be understood as Figure 19 The upper surface of the middle circuit board 3, the second circuit surface can be understood as Figure 19 On this basis, the thickness direction of the circuit board 3 can be understood as Figure 19 In the vertical downward direction.

[0146] The first housing 1 abuts against the first circuit surface. Figures 15-19 As shown, Figure 15 and Figure 16 For the perspective after flipping upside down, the first shell 1 is provided with a plurality of positioning parts 18 toward the circuit board 3, and the positioning parts 18 include a positioning unit, which protrudes from the second circuit surface and abuts against the circuit board 3, so that when the pressing force applied to the button 2 is transmitted to the circuit board 3 through the electronic switch 31, the positioning unit locks the displacement of the circuit board 3 in the thickness direction, so that the electronic switch 31 is triggered.

[0147] Furthermore, during the installation of circuit board 3, the first circuit surface abuts against first housing 1, while the second circuit surface is supported by the positioning unit, thereby ensuring stable positioning of circuit board 3 between first housing 1 and the positioning unit. During operation, when button 2 is pressed, the pressure is transmitted to circuit board 3 via electronic switch 31. The upward positioning force provided by the positioning unit prevents the circuit board 3 from being displaced in the thickness direction, ensuring reliable triggering of electronic switch 31.

[0148] Through this structural design, the displacement of the circuit board 3 is firmly locked by the positioning portion 18, and reliable support and positioning of the circuit board 3 can be achieved without the need for screws, which greatly improves the convenience of disassembly and assembly of the circuit board 3.

[0149] It is worth mentioning that in the embodiment of the present disclosure, the design of the positioning unit protruding from the circuit board 3 ensures the stability and sufficient support effect of the positioning of the circuit board 3, thereby avoiding unnecessary displacement of the circuit board 3 under the action of pressing force and ensuring that the switch can be successfully triggered.

[0150] In some embodiments, as Figure 18 and Figure 19 As shown, the circuit board 3 carries a high-voltage circuit and a low-voltage circuit, and the bottom shell 4 is provided with a receiving groove 41, in which the circuit board 3 and the positioning portion 18 are both accommodated. Furthermore, the circuit board 3 of this embodiment carries both a high-voltage circuit and a low-voltage circuit, and there is no need to provide a separate high-voltage circuit board 3 or a partition, thereby avoiding interference between the positioning unit and the partition. In addition, by providing both the circuit board 3 and the positioning portion 18 in the receiving groove 41, while avoiding interference between the positioning unit and the bottom shell 4, the circuit board 3 and the positioning portion 18 can also be prevented from occupying the thickness of the first shell 1, thereby reducing the panel thickness of the intelligent switch 100.

[0151] Further, if Figure 15 and Figure 16As shown, the circuit board 3 has a first connection end and a second connection end away from the first connection end, and the plurality of positioning portions 18 include at least one first positioning portion 182 and at least two second positioning portions 183; the first positioning portion 182 is arranged at a position corresponding to the first connection end, and the second positioning portion 183 is arranged at a position close to the second connection end; the first positioning portion 182 includes a first connecting arm 1821 extending from the first shell 1 and a first positioning unit 1822 arranged at the end of the first connecting arm 1821, and the second positioning portion 183 includes a second connecting arm 1831 extending from the first shell 1 and a second positioning unit 1832 arranged at the end of the second connecting arm 1831, and the first positioning unit 1822 and the second positioning unit 1832 respectively abut against the second circuit surface of the circuit board 3 to lock the displacement of the circuit board 3 in the thickness direction. Wherein, as Figure 16 As shown, the rigidity of the first connecting arm 1821 is greater than the rigidity of the second connecting arm 1831. Since the rigidity of the first connecting arm 1821 is higher, it is not easy to deform, while the rigidity of the second connecting arm 1831 is lower and it is easy to deform. Therefore, when installing the circuit board 3, the first connecting end is first inserted between the first positioning unit 1822 and the first shell 1, and then the second connecting end is pressed toward the first shell 1. The second positioning unit 1832 is squeezed by the circuit board 3 and drives the second connecting arm 1831 to undergo elastic deformation, and then the circuit board 3 is stuck between the second positioning unit 1832 and the first shell 1 to complete the installation of the circuit board 3. The entire installation process is simple and quick, which is conducive to improving assembly efficiency.

[0152] Among them, the first positioning unit 1822 and the second positioning unit 1832 are both the positioning units. The second positioning portion 183 is arranged at a position close to the second connection end, which can be understood as the second positioning portion 183 can be arranged at the end position corresponding to the second connection end, or can be arranged at a position close to the second connection end on both sides of the circuit board 3. In one embodiment, the second positioning portion 183 is arranged on both sides of the circuit board 3. This embodiment adopts at least one first positioning portion 182 with higher rigidity to cooperate with at least two second positioning portions 183 with lower rigidity, which can not only improve the assembly efficiency of the circuit board 3, but also provide a stable positioning force. When disassembling the circuit board 3, the second positioning portion 183 with lower rigidity is conducive to prying. The circuit board 3 can be disassembled by prying open the two second positioning portions 183 one by one. The disassembly process is relatively simple and quick, which is convenient for repairing and replacing the circuit board 3.

[0153] Since the rigidity of the second connecting arm 1831 is relatively low, there is a risk that the circuit board 3 will be separated when the button 2 is pressed. Figure 9As shown, the bottom case 4 is provided with a receiving groove 41, in which the circuit board 3 is received. The second connecting arm 1831 is abutted by the sidewall of the receiving groove 41, thereby enhancing the deformation resistance of the second connecting arm 1831 and preventing the circuit board 3 from disengaging from the second positioning portion 183 when the button 2 is pressed. When the first housing 1 is detached from the bottom case 4, the second connecting arm 1831 is no longer abutted by the bottom case 4, restoring its low rigidity and facilitating installation and removal of the circuit board 3. This embodiment enhances the deformation resistance of the second connecting arm 1831 through the bottom case 4, not only preventing the circuit board 3 from disengaging during use, but also maintaining the advantage of easy assembly and disassembly of the circuit board 3.

[0154] Further, if Figure 19 and Figure 18 As shown, the upper edge of the receiving groove 41 is provided with a first guiding slope 44, and the bottom of the second connecting arm 1831 is provided with a second guiding slope 1833. The second guiding slope 1833 is provided on the side of the second connecting arm 1831 away from the circuit board 3. The first guiding slope 44 cooperates with the second guiding slope 1833 to facilitate the second positioning portion 183 to be installed in the receiving groove 41. In an exemplary embodiment, Figure 18 As shown in FIG. 4 , the first guiding slope 44 surrounds the upper edge of the accommodating groove 41. Figure 19 As shown, when the first shell 1 is mounted on the bottom shell 4 , the first boss 13 of the first shell 1 is embedded in the first guiding inclined surface 44 .

[0155] In one embodiment, if Figure 16 and Figure 15 As shown, the circuit board 3 includes a first side edge and a second side edge disposed between the first connection end and the second connection end, the first side edge and the second side edge being located on either side of the circuit board 3, respectively. There are two second positioning portions 183, with the second positioning units 1832 of the two second positioning portions 183 abutting against the first side edge and the second side edge, respectively. The two second positioning portions 183 are located on either side of the circuit board 3 and are disposed opposite each other, thereby balancing the forces acting on the two second positioning portions 183 with lower rigidity, thereby precisely locking the circuit board 3 in place between the two second positioning portions 183. This prevents the second positioning portions 183 with lower rigidity from being squeezed by the first positioning portion 182 with higher rigidity, which would otherwise be located opposite each other.

[0156] Further, if Figure 16 and Figure 15As shown, there are two first positioning portions 182, and the first positioning units 1822 of the two first positioning portions 182 respectively abut the first connection end of the circuit board 3. The two first positioning portions 182 and the two second positioning portions 183 abut the circuit board 3, thereby improving the positioning force and making the connection of the circuit board 3 more stable. Furthermore, when installing the circuit board 3, the first connection end of the circuit board 3 is abutted by the two first positioning portions 182, which can constrain the horizontal direction of the circuit board 3, facilitate accurate insertion of the circuit board 3 into the first positioning portions 182, and thus improve the installation efficiency of the circuit board 3.

[0157] In one implementation, the width of the first connecting arm 1821 is greater than the width of the second connecting arm 1831, so that the first connecting arm 1821 has greater rigidity than the second connecting arm 1831. In some embodiments, the thickness of the first connecting arm 1821 is greater than the thickness of the second connecting arm 1831, so that the first connecting arm 1821 has greater rigidity than the second connecting arm 1831. In some embodiments, a first reinforcing rib is provided on the surface of the first connecting arm 1821 facing away from the circuit board 3, and a second reinforcing rib is provided on the surface of the second connecting arm 1831 facing away from the circuit board 3. The first reinforcing rib is wider than the second reinforcing rib, so that the first connecting arm 1821 has greater rigidity than the second connecting arm 1831.

[0158] In some embodiments, as Figure 10 As shown, the electronic switch 31 is located on the connecting line of the two second positioning portions 183, so that the positioning force provided by the second positioning portions 183 acts more directly on the electronic switch 31, making the positioning of the electronic switch 31 more stable and preventing the electronic switch 31 from being pressed and displaced.

[0159] In some embodiments, as Figure 15-17 As shown, the circuit board 3 is provided with a first positioning hole 38, and the first housing 1 is provided with a first positioning post 19. The first positioning post 19 is inserted into the first positioning hole 38 to lock the displacement of the circuit board 3 parallel to the first circuit surface. The direction parallel to the surface of the first circuit board 3 can be understood as the horizontal direction. The first positioning post 19 can improve the positioning accuracy of the circuit board 3 in the horizontal direction. In conjunction with the first positioning portion 182 and the second positioning portion 183, the circuit board 3 is precisely positioned in the horizontal and vertical directions, thereby ensuring that the electronic switch 31 is accurately triggered.

[0160] Furthermore, the first positioning hole 38 is provided on the circuit board 3 near the second connection end to improve the positioning accuracy of the circuit board 3 near the electronic switch 31 and ensure the positioning accuracy of the electronic switch 31. Figure 16As shown, due to the high rigidity of the first positioning portion 182, the position of the circuit board 3 in the horizontal direction is mainly positioned by the positioning column and the two first positioning portions 182. Setting the positioning column on the opposite side of the first positioning portion 182 can increase the distance between the positioning column and the first positioning portion 182, thereby improving the positioning accuracy of the circuit board 3.

[0161] like Figures 1-20 It is a three-button smart switch 100. Figure 21 and Figure 22 It is a two-button smart switch 100. Figure 23 and Figure 24 It is a single-button smart switch 100, wherein the difference between the double-button smart switch 100, the single-button smart switch 100 and the three-button smart switch 100 is that the number of the key unit 20 of the three-button smart switch 100 is three, and accordingly, the number of the micro switch 311, the panel unit 231, the driving part 224, the trigger part 142, the elastic arm 141, the light-emitting part 35, the light-transmitting structure 11, the light-transmitting hole 221, the light-transmitting area 21 and the relay 32 are all three, and the number of the terminal 36 is five; the number of the key unit 20 of the double-button smart switch 100 is There are two of them, and accordingly, the number of the micro switch 311, the panel unit 231, the driving part 224, the trigger part 142, the elastic arm 141, the light-emitting part 35, the light-transmitting structure 11, the light-transmitting hole 221, the light-transmitting area 21 and the relay 32 are all two, and the number of the wiring terminals 36 is four; the number of the button unit 20 of the single-button smart switch 100 is one, and accordingly, the number of the micro switch 311, the panel unit 231, the light-transmitting area 21 and the relay 32 are all one, the button panel 23 is a complete panel, and the number of the wiring terminals 36 is three.

[0162] It's worth noting that the button bracket 22 and first housing 1 structure of the single-button smart switch 100 are identical to those of the three-button smart switch 100, saving mold costs. Therefore, the single-button smart switch 100 has three drive units 224, three trigger units 142, three elastic arms 141, three light-emitting elements 35, three light-transmitting structures 11, and three light-transmitting holes 221.

[0163] In addition, compared to the three-button smart switch 100, the position layout of the micro switch 311, the light-emitting element 35, the light-transmitting structure 11, the light-transmitting hole 221, and the light-transmitting area 21 of the two-button smart switch 100 will be adaptively adjusted as the number of key units 20 changes. The position of the light-shielding portion 223 and the local recess 123 will also be slightly adjusted as the number of keys 2 changes. The position of the relay 32 and the wireless communication module 33 will also be slightly different. The circuits of the two-button smart switch 100, the single-button smart switch 100, and the three-button smart switch 100 will be slightly different. In addition to the above differences, the other structures of the two-button smart switch 100, the single-button smart switch 100, and the three-button smart switch 100 are the same.

[0164] It is worth noting that the structures of the elastic arms 141 and the trigger parts 142 of the two-button smart switch 100, the single-button smart switch 100 and the three-button smart switch 100 are exactly the same, and the number of the elastic arms 141 and the trigger parts 142 does not change with the number of the button units 20.

[0165] In another embodiment of the present invention, Figure 26 As shown, an integrated button 2 is provided. Figures 1-20 The difference between the illustrated embodiments is that the button bracket 22 and the button panel 23 are integrated into one, and the button 2 is made of plastic by integral injection molding; due to the low rigidity of plastic, reinforcing ribs are provided on the back of the button 2 to enhance the deformation resistance of the button 2; in addition, since the button 2 no longer uses a glass panel, there is no need to worry about the problem of the glass panel being damaged due to excessive deformation of the button 2, so the button 2 no longer has the first dividing seam 271, and the connecting portion 24 extends directly to the third end; furthermore, since the button 2 no longer uses a glass panel, complex text or patterns cannot be laser engraved. In this embodiment, the button 2 only has a small hole to form the light-transmitting area 21.

[0166] It should be noted that Figure 26 The embodiment shown is compared to Figures 1-20 In the embodiment shown, the structures other than the key 2 are identical, therefore, Figure 26 Other structures of this embodiment are omitted and will not be described in detail here.

[0167] The electronic switches of smart switches on the market generally use touch switches or micro switches 311. The internal structure of the micro switch 311 is relatively complex. Figure 25Figure 2 shows a schematic diagram of the structure of a micro switch 311. The micro switch 311 includes a protective housing 3111, a drive rod 3112, a contact system, and a spring system 3113. When the drive rod 3112 is pressed downward beyond its limit, the spring system 3113 is easily damaged. Commercially available smart switches typically trigger the micro switch 311 directly via a button. A trigger rod extends downward from the button, contacting the micro switch 311 with the trigger rod. Because the trigger rod is thin, the contact surface with the micro switch 311 is minimal. When the button is pressed, the trigger rod exerts a significant pressure, which can easily push the drive rod 3112 beyond its limit, damaging the micro switch 311.

[0168] In order to solve the problem that the micro switch 311 is easily damaged, according to the third aspect of the present utility model, as shown in FIG. Figure 1-Figure 26 As shown, a trigger structure with limit protection is provided, such as Figure 10 and Figure 25 As shown, the trigger structure with limit protection includes: a trigger part 142, a button 2 and a micro switch 311; the button 2 is arranged on a first side of the trigger part 142; the micro switch 311 is arranged on a second side of the trigger part 142 opposite to the first side, and the micro switch 311 includes a protective shell 3111 and a driving rod 3112 capable of telescopic movement relative to the protective shell 3111; the button 2 presses the driving rod 3112 of the micro switch 311 through the trigger part 142, and the driving rod 3112 is pressed to generate a retraction movement to trigger the micro switch 311.

[0169] Among them, such as Figure 10 、 Figure 7 and Figure 8 As shown, Figure 8 This is a schematic diagram of the position and area relationship between the trigger part 142 and the micro switch 311. The trigger part 142 has a first surface, and the trigger part 142 drives the driving rod 3112 through the first surface. The first surface covers at least a specified area of ​​the upper surface of the protective shell 3111, and the specified area is set to: when the first surface drives the driving rod 3112 to retract the protective shell 3111, the first surface abuts against the upper surface of the protective shell 3111, and the protective shell 3111 supports the trigger part 142, thereby limiting the trigger part 142 and the button 2 from continuing to press.

[0170] In this embodiment, the button 2 presses the driving rod 3112 through the trigger part 142. Since the first surface covers at least a specified area of ​​the upper surface of the protective shell 3111, when the first surface abuts against the protective shell 3111, the contact area between the first surface and the protective shell 3111 is larger and the abutting pressure is smaller, thereby preventing the protective shell 3111 from being crushed by the trigger part 142; and the trigger part 142 is supported by the protective shell 3111, thereby preventing the driving rod 3112 from being pressed beyond the limit stroke, thereby protecting the internal structure of the micro switch 3111 from damage.

[0171] The first surface may be a plane or a curved surface. In this embodiment, the first surface is Figure 10 The lower surface of the trigger portion 142. The retraction of the driving rod 3112 into the protective shell 3111 can be understood as the driving rod 3112 moving to no longer protrude from the upper surface of the protective shell 3111.

[0172] In addition, it is worth noting that in existing intelligent switches, the pressing movement of the key requires a lower limit, and the lower limit of the key is generally provided by the first housing. The electronic switch is generally installed on a circuit board, which is installed in the first housing or the bottom housing. This results in a long dimensional chain between the key and the electronic switch, which easily leads to error accumulation. Ultimately, the electronic switch may not be triggered when the key moves to the lower limit position. In this embodiment, the protective shell 3111 of the microswitch 311 supports the key 2 through the trigger portion 142. The lower limit of the key 2 is provided by the protective shell 3111 of the microswitch 311. The dimensional chain between the microswitch 311 and the key 2 is extremely short, making the lower limit of the key 2 more precise. Moreover, when the trigger portion 142 abuts the protective shell 3111, the microswitch 311 is already triggered. That is, when the key 2 moves to the lower limit, the microswitch 311 will inevitably trigger, and the situation where the key 2 moves to the lower limit position but the microswitch 311 is not triggered will not occur.

[0173] Furthermore, the designated area is 20% of the upper surface area of ​​the protective shell 3111 to ensure that the contact area between the first surface and the protective shell 3111 is large enough, so that the abutting pressure is small enough to ensure that the protective shell 3111 will not be deformed under the pressure of the first surface, and can stably support the trigger part 142 to avoid damage to the micro switch 311.

[0174] Further, if Figure 10 and Figure 8 As shown, the trigger portion 142 is constructed as a plate-like structure, and the first surface is the entire surface of the trigger portion 142 facing the micro switch 311; thereby, the first surface is increased as much as possible, and the first surface has no raised structure to ensure that the first surface can cover at least 20% of the upper surface area of ​​the protective shell 3111 to avoid damage to the micro switch 311.

[0175] Furthermore, the trigger structure with limit protection also includes a first shell 1, and the button 2 is movably connected to the first shell 1; the first shell 1 is extended with an elastic arm 141, and the trigger part 142 is integrally formed at the free end of the elastic arm 141; the elastic force of the elastic arm 141 acts on the button 2 through the trigger part 142, thereby providing a reset force for the button 2.

[0176] Furthermore, the elastic arm 141 is combined with the trigger portion 142 to form a reset member 14, and the reset member 14 provides a reset force for the button 2; the trigger portion 142 is provided with a support protrusion 143 toward the button 2, and the support protrusion 143 maintains an abutment state with the button 2.

[0177] Furthermore, the button 2 is provided with a driving portion 224 at a position corresponding to the support protrusion 143, and the button 2 is abutted against the support protrusion 143 through the driving portion 224; the driving portion 224 and the support protrusion 143 are both constructed as bar-shaped protrusions, and the two are arranged in a criss-cross manner; the end of the trigger portion 142 away from the elastic arm 141 is semicircular, and the driving rod 3112 of the micro switch 311 is arranged at a position close to the center of the semicircle.

[0178] In some embodiments, a third recess 17 is provided on a side of the first housing 1 facing the micro switch 311 at a position corresponding to the micro switch 311 , and the micro switch 311 is embedded in the third recess 17 .

[0179] In some embodiments, the button 2 is rotatably connected to the first shell 1, and the first shell 1 is provided with a first recess 121 toward the button 2. Part of the button 2 is sunk into the first recess 121 so that the button 2 and the first recess 121 overlap in the thickness direction, thereby reducing the thickness of the switch panel.

[0180] Among them, the technical details of the button 2, trigger part 142, micro switch 311, first shell 1, elastic arm 141, support protrusion 143, driving part 224, first recess 121 and third recess 17 are recorded in detail above and will not be repeated here.

[0181] According to the fourth aspect of the present invention, Figure 1-Figure 26 As shown, an intelligent switch 100 is provided, including the above-mentioned trigger structure with limit protection, and also including a bottom shell 4 and a circuit board 3. The first shell 1 is covered on the bottom shell 4, the circuit board 3 is installed on the side of the first shell 1 facing the bottom shell 4, and the micro switch 311 is set on the circuit board 3; the bottom shell 4 is provided with a receiving groove 41, and the circuit board 3 is accommodated in the receiving groove 41.

[0182] Furthermore, the number of the trigger parts 142 is three, the elastic arms 141 and the trigger parts 142 are arranged in a one-to-one correspondence, the trigger parts 142 located on both sides are bent toward the outside respectively, and the three elastic arms 141 and the three trigger parts 142 are all located in the area where the accommodating groove 41 is projected on the first shell 1.

[0183] Furthermore, the button 2 includes a button unit 20, the number and position of the micro switches 311 correspond to the button units 20, and each button unit 20 triggers the corresponding micro switch 311 respectively; when the number of the button units 20 is one, two or three, the number of the elastic arms 141 and the trigger part 142 are both maintained at three.

[0184] The technical details of the smart switch 100 are described in detail above and will not be repeated here.

[0185] It should also be noted that the above-mentioned embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments, that is, the technical solutions disclosed in the subsequent embodiments (in the order recorded in the text) should include the technical solutions recorded in the embodiment and the technical solutions recorded in all embodiments before the embodiment.

[0186] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A trigger structure with limit protection, characterized in that: include: Trigger unit; a button, disposed on the first side of the trigger portion; a micro switch disposed on a second side of the trigger portion opposite to the first side, the micro switch comprising a protective shell and a drive rod capable of telescopic movement relative to the protective shell; The button presses the driving rod of the micro switch through the trigger portion, and the driving rod is pressed to generate a retraction movement to trigger the micro switch; In which, the trigger part has a first surface, and the trigger part drives the driving rod through the first surface. The first surface covers at least a specified area of ​​the upper surface of the protective shell. The specified area is set to: when the first surface drives the driving rod to retract the protective shell, the first surface abuts against the upper surface of the protective shell, and the protective shell supports the trigger part, thereby limiting the trigger part and the button from continuing to press.

2. The trigger structure with position limit protection according to claim 1, characterized in that: The trigger portion is constructed as a plate-shaped structure, the first surface is the entire surface of the trigger portion facing the micro switch; and the designated area is 20% of the upper surface area of ​​the protective shell.

3. The trigger structure with position limit protection according to any one of claims 1-2, characterized in that: It also includes a first shell, and the button is movably connected to the first shell; An elastic arm is extended from the first shell, and the trigger portion is integrally formed at the free end of the elastic arm; the elastic force of the elastic arm acts on the button through the trigger portion, thereby providing a reset force for the button.

4. The trigger structure with position limit protection according to claim 3, characterized in that: The elastic arm is combined with the trigger portion to form a reset member, and the reset member provides a reset force for the button; the trigger portion is provided with a supporting protrusion toward the button, and the supporting protrusion maintains an abutment state with the button.

5. The trigger structure with position limit protection according to claim 4, characterized in that: The button is provided with a driving portion at a position corresponding to the supporting protrusion, and the button abuts against the supporting protrusion through the driving portion; the driving portion and the supporting protrusion are both constructed as bar-shaped protrusions, and the two are arranged in a crisscross manner; The end of the trigger portion away from the elastic arm is semicircular, and the driving rod of the micro switch is arranged at a position close to the center of the semicircle.

6. The trigger structure with position limit protection according to claim 3, characterized in that: A third recess is provided on one side of the first housing facing the micro switch at a position corresponding to the micro switch, and the micro switch is embedded in the third recess.

7. The trigger structure with position limit protection according to claim 3, characterized in that: The button is rotatably connected to the first shell. The first shell is provided with a first recess toward the button, and a portion of the button is sunk into the first recess.

8. An intelligent switch, comprising the trigger structure with limit protection according to any one of claims 3 to 7, characterized in that: The device further comprises a bottom shell and a circuit board, wherein the first shell cover is disposed on the bottom shell, the circuit board is mounted on a side of the first shell facing the bottom shell, and the micro switch is disposed on the circuit board; The bottom case is provided with an accommodating groove, and the circuit board is accommodated in the accommodating groove.

9. The intelligent switch according to claim 8, characterized in that: There are three trigger parts, and the elastic arms are arranged in a one-to-one correspondence with the trigger parts. The trigger parts on both sides are bent toward the outside respectively, and the three elastic arms and the three trigger parts are all located in the area where the accommodating groove is projected on the first shell.

10. The intelligent switch according to claim 8, characterized in that: The button includes a button unit, the number and position of the micro switches correspond to the button units, and each button unit triggers the corresponding micro switch; when the number of the button units is one, two or three, the number of the elastic arms and the trigger parts is maintained at three.

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