Key structure and electronic equipment
By combining the triggering mechanism of infrared sensing components and micro-switches, the problems of poor sensing accuracy and slow response speed of existing button structures are solved, achieving higher precision and faster response button operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG ZHONGMO SECURITY EQUIP CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-05-08
AI Technical Summary
The existing button structure has poor sensing accuracy and slow response speed, which affects the user experience.
The triggering mechanism combines an infrared sensing component and a micro switch component. It senses button operation by emitting and reflecting infrared light, and improves sensing accuracy and response speed by incorporating elastic elements and a housing design.
The sensing accuracy and response speed of the button structure have been improved, resulting in more sensitive sensing and faster signal triggering, thus enhancing the reliability and safety of the button structure.
Smart Images
Figure CN224217395U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of button technology, and in particular to a button structure and electronic device. Background Technology
[0002] With the rapid development of technology, people's demand for intelligent control of doors is increasing. Many doors are equipped with intelligent switch panels to meet users' needs for convenient and efficient operation.
[0003] Current technology uses smart door control panels with buttons to open or close the door by pressing them. However, existing buttons suffer from poor sensitivity and slow response, negatively impacting the user experience. Utility Model Content
[0004] The purpose of this invention is to provide a button structure and electronic device, which aims to solve the technical problems of poor sensing accuracy and slow response speed of existing button structures.
[0005] To achieve the above objectives, this utility model provides a button structure, which includes a cover, an outer shell, an infrared sensing component, a micro switch component, and an elastic element. The outer shell has a receiving cavity and a mounting port communicating with the receiving cavity. The infrared sensing component and the micro switch component are disposed in the receiving cavity along the extending direction of the outer shell. The infrared sensing component is disposed on the side close to the mounting port. The cover is assembled to the mounting port and covers the infrared sensing component.
[0006] The infrared sensing component includes a first circuit board, an infrared transmitter, and an infrared receiver. The infrared transmitter and the infrared receiver are disposed on the first circuit board and face the housing. The infrared transmitter is used to emit infrared light, the housing is used to transmit infrared light, and the infrared receiver is used to receive infrared light reflected by an obstacle.
[0007] The micro switch assembly includes a second circuit board and a micro switch. The second circuit board is electrically connected to the first circuit board, and the micro switch is disposed on the second circuit board and abuts against the first circuit board.
[0008] One end of the elastic element is connected to the infrared sensing component, and the other end of the elastic element is connected to the micro switch component.
[0009] In the button structure of this application, the infrared sensing component further includes a light guide ring, which is disposed between the outer shell and the cover, and is sleeved on the outer periphery of the cover.
[0010] In the button structure of this application, the outer peripheral surface of the cover is provided with a hook, the inner peripheral surface of the light guide ring is provided with a groove, and the hook is snapped into the groove.
[0011] In the button structure of this application, the hook is provided with a connecting post extending toward the first circuit board, the first circuit board is provided with a connecting hole corresponding to the connecting post, and the connecting post is inserted into the connecting hole.
[0012] In the button structure of this application, the elastic element includes a waterproof ring, which is disposed in the receiving cavity. The first end of the waterproof ring is connected to the light guide ring, and the second end of the waterproof ring is connected to the second circuit board.
[0013] In the button structure of this application, the outer periphery of the light guide ring is also provided with a waterproof groove facing the waterproof ring, and the first end of the waterproof ring is embedded in the waterproof groove.
[0014] In the button structure of this application, the outer periphery of the light guide ring is provided with an annular protrusion, and the annular protrusion and the light guide ring form the waterproof groove.
[0015] In the button structure of this application, the waterproof ring is made of silicone.
[0016] In the button structure of this application, the infrared transmitter includes an infrared photodiode, and the infrared receiver includes an infrared phototransistor.
[0017] Secondly, this utility model also provides an electronic device, including the aforementioned button structure.
[0018] This utility model provides a button structure, the advantages of which are:
[0019] The button structure of this utility model includes a cover, an outer shell, an infrared sensing component, a micro switch component, and an elastic element. Pressing the cover pushes the infrared sensing component and the elastic element, which in turn pushes the micro switch via a first circuit board. The micro switch triggers a signal, thus triggering the button structure. When the infrared sensing component is not pushed, infrared light emitted by the infrared emitter passes through the cover and is emitted outwards. When the cover is pressed, causing the infrared sensing component to be pushed, the light path of the emitted infrared light is blocked, and reflected light is generated to the infrared receiver. The infrared receiver receives the reflected infrared light, and the infrared sensing component generates a corresponding trigger signal. Releasing the pressing action of the cover causes the cover and the infrared sensing component to return to their initial positions under the elastic force of the elastic element, and the trigger signal disappears. During the process of pressing the cover to trigger the micro switch, the friction of the structural components and the elastic force of the elastic element must be overcome, resulting in a delay in the micro switch trigger signal. An infrared sensor is installed on the micro switch assembly. The infrared sensor triggers the signal based on changes in the light path. Compared with mechanical buttons that require a certain amount of pressing distance and force to trigger the signal, the infrared sensor is more sensitive, thereby improving the sensing accuracy and speeding up the response speed of the button structure. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 A perspective view of the button structure provided in an embodiment of this utility model;
[0022] Figure 2 An exploded view of the button structure provided in an embodiment of this utility model;
[0023] Figure 3 A cross-sectional view of the button structure provided in an embodiment of this utility model;
[0024] Figure 4 A schematic diagram of the outer shell provided for an embodiment of this utility model;
[0025] Figure 5 This is a schematic diagram of the structure of the infrared sensing component provided in an embodiment of the present utility model;
[0026] Figure 6 This is a schematic diagram of the micro switch assembly provided in an embodiment of the present invention;
[0027] Figure 7 A schematic diagram of the structure of the cover provided in this embodiment of the utility model;
[0028] Figure 8 One of the structural schematic diagrams of the light guide ring provided in the embodiment of this utility model;
[0029] Figure 9 The second schematic diagram of the structure of the light guide ring provided in the embodiment of this utility model.
[0030] The markings in the image are as follows:
[0031] 1. Cover; 11. Hook; 12. Connecting post; 13. Contact; 2. Outer shell; 21. Receiving cavity; 22. Mounting port; 3. Infrared sensing component; 30. Light guide ring; 31. First circuit board; 32. Infrared transmitter; 33. Infrared receiver; 34. Slot; 35. Connecting hole; 36. Waterproof groove; 37. Annular protrusion; 4. Micro switch component; 41. Micro switch; 42. Second circuit board; 5. Waterproof ring; 100. Button structure. Detailed Implementation
[0032] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0033] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer" and other terms used in this utility model to indicate the orientation or positional relationship are based on the positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device and components referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0034] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.
[0035] like Figures 1 to 9As shown, this utility model embodiment provides a button structure 100, including a cover 1, an outer shell 2, an infrared sensing component 3, a micro switch component 4, and an elastic element. The outer shell 2 has a receiving cavity 21 and a mounting port 22 communicating with the receiving cavity 21. The infrared sensing component 3 and the micro switch component 4 are disposed in the receiving cavity 21 along the extending direction of the outer shell 2. The infrared sensing component 3 is disposed on the side near the mounting port 22. The cover 1 is assembled to the mounting port 22 and covers the infrared sensing component 3. The infrared sensing component 3 includes a first circuit board 31, an infrared emitter 32, and an infrared receiver 33. The infrared emitter 32 and the infrared receiver 33 are disposed on the first circuit board 31 and face the cover 1. The infrared emitter 32 is used to emit infrared light, the cover 1 is used to transmit infrared light, and the infrared receiver 33 is used to receive infrared light reflected by an obstacle. The micro switch component 4 includes a second circuit board 42 and a micro switch 41. The second circuit board 42 is electrically connected to the first circuit board 31, and the micro switch 41 is disposed on the second circuit board 42 and abuts against the first circuit board 31. One end of the elastic element is connected to the infrared sensing component 3, and the other end of the elastic element is connected to the micro switch component 4.
[0036] In this embodiment, the cover 1 is made of infrared-transmitting material, which can transmit infrared light and block ordinary light. The cover 1 does not need to reserve infrared light emission holes and receiving holes, and can realize the transmission of infrared light.
[0037] In the infrared sensing component 3, an infrared emitter 32 and an infrared receiver 33 are integrated on and electrically connected to the first circuit board 31. Exemplarily, the infrared emitter 32 includes an infrared photodiode, and the infrared receiver 33 includes an infrared phototransistor. The infrared photodiode converts electrical energy into infrared light energy, emitting infrared light of a specific wavelength. The infrared phototransistor is sensitive to infrared light; when it receives infrared light reflected from an obstacle, its internal semiconductor material undergoes a corresponding electrical change, converting the optical signal into an electrical signal.
[0038] In the microswitch assembly 4, the microswitch 41 is mounted on the second circuit board 42 facing the infrared sensing assembly 3. The working principle of the microswitch 41 is based on its internal elastic element and contact structure. When a small force is applied to the operating mechanism of the microswitch (such as a button, lever, etc.), this force will cause the elastic element to deform. When the deformation reaches a certain degree, it will cause the internal contacts to act rapidly, thereby realizing the switching of the circuit.
[0039] The second circuit board 42 is connected to the first circuit board 31 via an electrical connection line to achieve electrical connection between the infrared sensing component 3 and the micro switch component 4. The infrared sensing component 3 and the micro switch component 4 are assembled in the receiving cavity 21 of the housing 2. The infrared sensing component 3 is located on the side closer to the mounting port 22, and the micro switch component 4 is located on the side farther away from the mounting port 22. The housing 1 is assembled onto the mounting port 22 to cover the infrared sensing component 3.
[0040] The button structure 100 in this embodiment is used for communication with the switch panel of the smart door. The button structure 100 generates a corresponding trigger signal to unlock the smart door. In actual use, pressing the cover 1 pushes the infrared sensing component 3 and the elastic element. The first circuit board 31 then pushes the micro switch 41, which triggers a signal, thus triggering the button structure 100. When the infrared sensing component 3 is not pushed, the infrared light emitted by the infrared emitter 32 passes through the cover 1 and is emitted outwards. When the cover 1 is pressed, causing the infrared sensing component 3 to be pushed, the light path of the infrared light is blocked, and reflected light is generated to the infrared receiver 33. The infrared receiver 33 receives the reflected infrared light, and the infrared sensing component 3 generates a corresponding trigger signal. If the pressing action on the cover 1 is released, under the elastic action of the elastic element, the cover 1 and the infrared sensing component 3 return to the initial position of the mounting opening 22, and the trigger signal disappears.
[0041] It is understandable that during the process of pressing the cover 1 to trigger the micro switch 41, it is necessary to overcome the friction of the structural components and the elastic force of the elastic element, so there is a certain delay in the trigger signal of the micro switch 41. In this embodiment, an infrared sensing component 3 is set on the micro switch assembly 4, and the trigger signal is also triggered by the infrared sensing component 3. The infrared sensing component 3 triggers the signal based on the change of light path. Compared with mechanical buttons that require a pressing stroke and force to trigger the signal, the infrared sensing component 3 is more sensitive, thereby improving the sensing accuracy and speeding up the response speed of the button structure.
[0042] This embodiment employs two independent triggering mechanisms for its button structure: an infrared sensing component 3 and a micro switch component 4. The infrared sensing component 3 generates a trigger signal based on the emission, reflection, and reception of infrared light. The micro switch component 4 triggers the function by causing a change in electrical signal through mechanical pressing of the micro switch 41. These two components complement each other; if one malfunctions, the other can still function, ensuring safe access. For example, even if the infrared sensing component 3 fails or is damaged, the button signal can still be triggered by the micro switch component 4, providing dual protection.
[0043] In some embodiments, such as Figure 2 and Figure 3As shown, the infrared sensing component 3 also includes a light guide ring 30, which is disposed between the outer shell 2 and the cover 1, and is sleeved on the outer periphery of the cover 1.
[0044] Specifically, the light guide ring 30 is installed on the outer periphery of the housing 1 and embedded in the gap between the outer shell 2 and the housing 1. The light guide ring 30 can enhance the overall appearance and texture of the button structure. The light guide ring 30 has a smooth surface, which makes the button structure look more refined and beautiful.
[0045] In this embodiment, the light guide ring 30 is made of a material with light-guiding properties, which can emit a faint light as an operation prompt, making it easier for users to find the button location and improving the convenience of operation. For example, at night or in a dimly lit environment, the light guide ring 30 can guide the user to accurately press the cover 1 to realize the switch control function. In addition, the light guide ring 30 also functions as an indicator light to display the standby or working status.
[0046] In some embodiments, such as Figures 7 to 9 As shown, the outer circumferential surface of the cover 1 is provided with a hook 11, and the inner circumferential surface of the light guide ring 30 is provided with a groove 34. The hook 11 and the groove 34 are connected by a snap-fit.
[0047] Specifically, the light guide ring 30 is installed on the outer periphery of the cover 1, and the hook 11 is inserted into the slot 34 and snapped together with the slot 34 to prevent relative movement between the cover 1 and the light guide ring 30 in the axial and radial directions, so that the cover 1 and the light guide ring 30 are firmly connected, improving the sealing of the button structure, so as to wrap the internal infrared sensing component 3 and micro switch component 4, isolate moisture, and prevent moisture from entering the receiving cavity 21 and causing the internal electronic components to become damp or damaged.
[0048] In some embodiments, such as Figures 7 to 9 As shown, the outer circumferential surface of the housing 1 is provided with multiple hooks 11 at intervals, and the inner circumferential surface of the light guide ring 30 is provided with multiple slots 34 at intervals. Each hook 11 is embedded into each slot 34 in a corresponding manner, thereby enhancing the connection strength between the housing 1 and the light guide ring 30.
[0049] In some embodiments, such as Figure 5 and Figure 7 As shown, the hook 11 has a connecting post 12 extending into the first circuit board 31, and the first circuit board 31 has a connecting hole 35 corresponding to the connecting post 12, and the connecting post 12 is inserted into the connecting hole 35.
[0050] Specifically, when assembling the light guide ring 30 with the housing 1, the connecting post 12 on the hook 11 is first inserted into the connecting hole 35 on the first circuit board 31, and then the light guide ring 30 is further pushed so that the hook 11 is embedded in the slot 34. The cooperation between the connecting post 12 and the connecting hole 35 can prevent installation errors. If the housing 1 is not installed in the correct position, the connecting post 12 cannot be inserted into the connecting hole 35. This error-proof design can improve installation efficiency.
[0051] In some embodiments, such as Figure 7 As shown, the side of the cover 1 facing away from the infrared sensing component 3, that is, the outer surface of the cover 1, is provided with a contact point 13 structure. The contact point 13 is also a blind spot or Braille, which makes it easy for blind people to touch and press.
[0052] In some embodiments, such as Figure 3 As shown, the elastic element includes a waterproof ring 5, which is disposed in the receiving cavity 21. The first end of the waterproof ring 5 is sleeved on the light guide ring 30, and the second end of the waterproof ring 5 is sleeved on the second circuit board 42.
[0053] Specifically, the waterproof ring 5 is made of a material with a certain elasticity, such as rubber or silicone. The first end of the waterproof ring 5 is fitted around the outer periphery of the light guide ring 30, and the second end of the waterproof ring 5 is fitted around the outer edge of the second circuit board 42. The waterproof ring 5 covers the infrared sensing component 3 and the micro switch component 4 inside, enhancing the waterproofness of the button structure, further isolating moisture, and preventing moisture from entering and causing the internal electronic components to become damp or damaged.
[0054] In some embodiments, such as Figure 9 As shown, the outer periphery of the light guide ring 30 is also provided with a waterproof groove 36 facing the waterproof ring 5, and the first end of the waterproof ring 5 is embedded in the waterproof groove 36.
[0055] Specifically, the first end of the waterproof ring 5 is embedded in the waterproof groove 36 and fitted around the outer periphery of the light guide ring 30. The waterproof ring 5 and the waterproof groove 36 are tightly connected, thereby improving the sealing performance at the connection between the waterproof ring 5 and the light guide ring 30.
[0056] When pressed, pressing the cover 1 pushes the infrared sensing component 3, the first circuit board 31 pushes the micro switch 41, and the infrared sensing component 3 pushes the waterproof ring 5, causing the waterproof ring 5 to deform. After releasing the pressure on the cover 1, under the elastic action of the waterproof ring 5, the cover 1 and the infrared sensing component 3 return to their initial positions, and the trigger signal disappears.
[0057] In some embodiments, such as Figure 8 and Figure 9 As shown, the outer periphery of the light guide ring 30 is provided with an annular protrusion 37, and the annular protrusion 37 and the light guide ring 30 form a waterproof groove 36.
[0058] Specifically, the diameter of the annular protrusion 37 is larger than the diameter of the light guide ring 30, and the annular protrusion 37 and the light guide ring 30 are injection molded to form a waterproof groove 36.
[0059] Secondly, this utility model embodiment also provides an electronic device (not shown in the accompanying drawings), including a button structure.
[0060] Specifically, the electronic device can be a control device for a smart door, with a button structure on the control device. The door can be opened by triggering signals through the infrared sensing component 3 and the micro switch component 4.
[0061] It should be understood that the term "and / or" as used in this specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations. It should be noted that, herein, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. The above-described embodiment numbers are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above descriptions are merely specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.
Claims
1. A button structure, characterized in that, The device includes a housing, an outer shell, an infrared sensing component, a micro switch component, and an elastic element. The outer shell has a receiving cavity and a mounting port communicating with the receiving cavity. The infrared sensing component and the micro switch component are disposed in the receiving cavity along the extending direction of the outer shell. The infrared sensing component is disposed on the side close to the mounting port. The housing is assembled to the mounting port and covers the infrared sensing component. The infrared sensing component includes a first circuit board, an infrared transmitter, and an infrared receiver. The infrared transmitter and the infrared receiver are disposed on the first circuit board and face the housing. The infrared transmitter is used to emit infrared light, the housing is used to transmit infrared light, and the infrared receiver is used to receive infrared light reflected by an obstacle. The micro switch assembly includes a second circuit board and a micro switch. The second circuit board is electrically connected to the first circuit board, and the micro switch is disposed on the second circuit board and abuts against the first circuit board. One end of the elastic element is connected to the infrared sensing component, and the other end of the elastic element is connected to the micro switch component.
2. The button structure according to claim 1, characterized in that, The infrared sensing component also includes a light guide ring, which is disposed between the outer shell and the cover, and is fitted around the outer periphery of the cover.
3. The button structure according to claim 2, characterized in that, The outer circumferential surface of the cover is provided with a hook, and the inner circumferential surface of the light guide ring is provided with a groove. The hook and the groove are connected by a snap-fit.
4. The button structure according to claim 3, characterized in that, The hook has a connecting post extending toward the first circuit board, and the first circuit board has a connecting hole corresponding to the connecting post, and the connecting post is inserted into the connecting hole.
5. The button structure according to claim 2, characterized in that, The elastic element includes a waterproof ring disposed within the receiving cavity. The first end of the waterproof ring is connected to the light guide ring, and the second end of the waterproof ring is connected to the second circuit board.
6. The button structure according to claim 5, characterized in that, The outer periphery of the light guide ring is also provided with a waterproof groove facing the waterproof ring, and the first end of the waterproof ring is embedded in the waterproof groove.
7. The button structure according to claim 6, characterized in that, The outer periphery of the light guide ring is provided with an annular protrusion, and the annular protrusion and the light guide ring form the waterproof groove.
8. The button structure according to claim 5, characterized in that, The waterproof ring is made of silicone.
9. The button structure according to claim 1, characterized in that, The infrared transmitter includes an infrared photodiode, and the infrared receiver includes an infrared phototransistor.
10. An electronic device, characterized in that, Includes the button structure as described in any one of claims 1 to 9.