Optical axis key device with adjustable mute mode
By introducing light triggering components and stroke adjustment mechanisms into the optical axis key device, the problem of lack of silent adjustment of traditional optical axis keys is solved, and the multi-mode selection and sensitivity of the keys are realized to adapt to the use needs of different environments.
Patent Information
- Application Number
- CN202421215283.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-30
AI Technical Summary
Traditional optical axis buttons lack silent adjustment function and cannot adapt to the usage needs in different scenarios, especially in a quiet environment that may cause noise interference.
An optical axis button device including a PCB substrate, a light trigger assembly and a stroke adjustment mechanism is designed. The button triggering is realized through a light source and a light sensor, and the active stroke is controlled through the stroke adjustment mechanism, allowing the user to select a mute or audio mode.
Multi-mode selection is provided to meet the needs of different environments, improve the sensitivity and flexibility of buttons, ensuring that it can be muted when needed and reduce noise interference.
Smart Images
Figure CN222355005U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of input devices, and in particular to an optical axis key device with adjustable mute. Background Art
[0002] In the design of contemporary electronic devices, buttons play a vital role as a basic and intuitive interface for users to interact with the device. These button devices are usually designed to contain one or more movable button components, which move and trigger a switch mechanism when the user applies pressure through the finger. This mechanical action produces a physical click sound, which mainly comes from the collision between the button components and the rapid movement of components such as springs.
[0003] For example, the keys in a traditional computer keyboard are reset by a spring or rubber dome structure at the bottom, which rebounds quickly after being pressed, producing a specific sound. Similarly, the keys in remote controls and electronic game controllers also provide feedback through similar mechanical means. This audible feedback ensures that the user is aware that the operation has been performed without visual confirmation, enhancing the intuitiveness and sense of confirmation when using it.
[0004] Most traditional keypad technologies lack flexibility because they are fixed designs and do not provide options for adjusting the sound status, which fails to foresee the diversity of user needs and changes in scenarios. Specifically, in a home environment, especially at night or when children are sleeping, traditional audible keys may cause unnecessary noise interference, affecting the rest or activities of family members. At the same time, in public places such as libraries and conference rooms where quietness needs to be maintained, the keypad sound may be regarded as a factor that disrupts order, limiting the occasions where the device can be used.
[0005] Traditional magnetic axis keys mainly rely on the interaction of magnetic materials to trigger and reset keys through magnetic attraction or repulsion. This design can adjust the sound state of the keys by adjusting the strength of the magnetic force. However, there are significant differences in the structure and working principle of optical axis keys and magnetic axis keys. Optical axis keys use optical principles to achieve key operation through light blocking and sensing. This design not only reduces the need for physical contact, thereby significantly reducing the noise of the keys, but also provides higher response speed and accuracy.
[0006] Due to the differences in structure and principle between the optical axis and the magnetic axis, the existing magnetic axis mute adjustment mechanism cannot be directly applied to the optical axis key. Therefore, it is necessary to improve the structure of the optical axis key to achieve an adjustable mute mode to meet the usage requirements in different scenarios. Utility Model Content
[0007] The purpose of the present application is to overcome at least one of the shortcomings of the prior art and to provide an optical axis button device with an adjustable silent mode. The magnetic axis device allows the user to select an audible mode to obtain clear operational feedback or switch to a silent mode to adapt to a quiet working or resting environment.
[0008] To achieve the above-mentioned purpose, the present application discloses an optical axis key device with adjustable silent mode, comprising a PCB substrate and a key mounted on the front side of the PCB substrate, wherein a light triggering component corresponding to the key is mounted on the back side of the PCB substrate, and the light triggering component is composed of a light source and a light sensor that are matched with each other; when the key is pressed, the light sensor is blocked from sensing the light source to achieve triggering; the key comprises a base, a key body matched with the base, and a plastic part fixed on the mounting body, wherein the key body is mounted in the base and has a resettable active stroke, and when the key body is at the lowest stroke, it is located on the light transmission path between the light source and the light sensor, and is used to cut off the light transmission path to achieve light-sensitive triggering; a stroke adjustment mechanism corresponding to the key body is mounted on the back side of the PCB substrate, and the distance of the active stroke is adjusted via the stroke adjustment mechanism to control whether the plastic part and the base are in contact and matched within the active stroke; the stroke adjustment mechanism is located in the light transmission path of the light triggering component, and the stroke adjustment mechanism is provided with a window position to avoid light transmission.
[0009] Furthermore, a space matching the key is provided on the PCB substrate, and the key is fixedly installed in the space.
[0010] Furthermore, the base has a cavity for accommodating and installing the key body, the key body is installed in the cavity, and the key body at least partially extends upward out of the base.
[0011] Furthermore, the button body and the base are matched with each other through at least one spring member to achieve the resetting of the movable stroke.
[0012] Furthermore, the button body has a guide column in the stroke direction, which faces the preset opening at the bottom of the base and cooperates with the stroke adjustment mechanism. The guide column can cut off the light transmission path in the downward position to achieve the inductive triggering of the trigger component.
[0013] Furthermore, the stroke adjustment mechanism is a switch block installed on the bottom surface of the base and capable of switching positions, and a connector for installing the switch block on the bottom surface of the PCB substrate; the switch block is stepped, with deep steps and shallow steps, the deep steps form a low stroke position when matched with the bottom end of the guide column, and the shallow steps form a high stroke position when matched with the bottom end of the guide column, and the guide column is switched to the high stroke position or the low stroke position by sliding the switch block; the connector avoids the light transmission path, and a through groove is provided on the switch block to form a window position. The rubber part is installed on the key body and located in the base, and matches with the bottom surface of the base, and a working stroke is formed between the rubber block and the bottom surface of the base, and the height of the working stroke is greater than the high stroke position and less than the low stroke position. When the guide column matches with the low stroke position, the rubber block contacts and matches with the switch block earlier than the guide column to achieve silence.
[0014] Compared with the prior art, the present invention has at least one of the following beneficial effects:
[0015] 1. Multi-mode selection: Users can choose audio mode or silent mode according to their needs to meet the usage requirements of different environments. For example, use the audio mode when clear operation feedback is required, and use the silent mode in a quiet working or resting environment.
[0016] 2. Light trigger technology: Using light trigger components, the key is triggered through light source and light sensor, ensuring the sensitivity and accuracy of the key.
[0017] 3. Stroke adjustment: By controlling the active stroke of the button through the stroke adjustment mechanism, the pressing force and feedback force of the button can be adjusted to improve the flexibility of use.
[0018] The above-listed beneficial effects are not exhaustive of all advantages. Other potential beneficial effects and detailed technical implementations will be further disclosed in the examples or other description parts of this application. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] After reading the following detailed description in conjunction with the accompanying drawings, you will have a better understanding of various aspects of the present disclosure. The positions, sizes, and ranges of various structures shown in the accompanying drawings sometimes do not represent the actual positions, sizes, and ranges. In the accompanying drawings:
[0020] Figure 1 It is a schematic diagram of the structure of an embodiment disclosed in the present application at a horizontal viewing angle.
[0021] Figure 2 It is a structural schematic diagram of an embodiment disclosed in the present application from another stereoscopic perspective.
[0022] Figure 3 It is a schematic diagram of the explosion structure of an embodiment disclosed in the present application.
[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of an embodiment disclosed in the present application. DETAILED DESCRIPTION
[0024] The present disclosure will be described below with reference to the accompanying drawings, wherein the accompanying drawings illustrate several embodiments of the present disclosure. However, it should be understood that the present disclosure can be presented in a variety of different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure of the present disclosure more complete and fully illustrate the scope of protection of the present disclosure to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide more additional embodiments.
[0025] It should be understood that the same reference numerals represent the same elements throughout the drawings. In the drawings, the dimensions of certain features may be distorted for clarity.
[0026] It should be understood that the terms used in the specification are only used to describe specific embodiments and are not intended to limit the present disclosure. All terms (including technical terms and scientific terms) used in the specification have the meanings commonly understood by those skilled in the art unless otherwise defined. For the sake of brevity and / or clarity, the techniques, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorized specification.
[0027] The singular forms "a", "said" and "the" used in the specification include plural forms unless clearly indicated. The terms "include", "comprise" and "contain" used in the specification indicate the presence of the claimed features, but do not exclude the presence of one or more other features. The term "and / or" used in the specification includes any and all combinations of one or more of the relevant listed items. Example
[0028] Figures 1 to 4 An exemplary structure for achieving the technical purpose of the present application is shown. As shown in the figure, this embodiment specifically discloses an optical axis button device with adjustable silent mode. In terms of structural composition, the button device includes a PCB substrate 1 and a button 2 installed on the front side of the PCB substrate 1.
[0029] Furthermore, a light trigger component 3 corresponding to the button 2 is installed on the back of the PCB substrate 1 , and the light trigger component 3 is composed of a light source 4 and a light sensor 5 .
[0030] Specifically, the light source 4 is an LED light source, and the light sensor 5 is a photodiode. When the button 2 is pressed, the light sensor 5 is blocked to sense the light source 4, thereby achieving triggering.
[0031] In this embodiment, the key 2 includes a base 6 , a key body 7 matched with the base 6 , and a rubber member 8 fixed on the key body 7 .
[0032] Furthermore, the button body 7 is installed in the base 6 and has a resettable movable stroke. When the button body 7 is at the lowest stroke, it is located on the light transmission path between the light source 4 and the light sensor 5, and is used to cut off the light transmission path to achieve light-sensitive triggering.
[0033] To achieve silent adjustment, a stroke adjustment mechanism 9 is installed on the back of the PCB substrate 1 to cooperate with the button body 7. The stroke adjustment mechanism 9 adjusts the distance of the active stroke, thereby controlling whether the rubber part 8 and the base 6 are in contact and cooperate within the active stroke. The stroke adjustment mechanism 9 is located in the light transmission path of the light trigger component 3 and is provided with a window position 10 to avoid light transmission.
[0034] As a further description, a space 11 is provided on the PCB substrate 1 for cooperating with the key 2, and the key 2 is fixedly installed in the space 11. The base 6 has a cavity 12 for accommodating and installing the key body 7, and the key body 7 is installed in the cavity 12, and the key body 7 at least partially extends upward outside the base 6. The key body 7 and the base 6 are matched by a spring, so as to realize the reset of the active stroke.
[0035] More specifically, in order to realize its function, the button body 7 has a guide column 13 in the stroke direction, and the guide column 13 faces the preset opening at the bottom of the base 6 and is aligned with the stroke adjustment mechanism 9. The guide column 13 can cut off the light transmission path in the downward position, thereby realizing the inductive triggering of the light trigger component 3. The stroke adjustment mechanism 9 is a switching block 14 installed on the bottom surface of the base 6 and capable of switching positions, and a connector 15 for mounting the switching block 14 on the bottom surface of the PCB substrate 1. The switching block 14 is stepped, with a deep step position 16 and a shallow step position 17 on it. When the deep step position 16 cooperates with the bottom end of the guide column 13, a low stroke position is formed, and when the shallow step position 17 cooperates with the bottom end of the guide column 13, a high stroke position is formed. The switching guide column 13 is switched to the high stroke position or the low stroke position by sliding the switching block 14. The connector 15 has a positioning structure for positioning the switching block 14 after switching, and the positioning structure is mainly realized by using a spring piece 19 with a protruding structure to cooperate with the positioning groove on the switching block 14.
[0036] In this embodiment, the rubber member 8 is mounted on the key body 7 and is located inside the base 6, and is matched with the bottom surface of the base 6. A working stroke is formed between the rubber member 8 and the bottom surface of the base 6, and the height of the working stroke is greater than the high stroke position and less than the low stroke position. When the guide column 13 is matched with the low stroke position, the rubber member 8 contacts and matches with the switching block 14 earlier than the guide column 13, thereby achieving silence. The rubber member 8 is made of a flexible rubber material, has good elasticity and wear resistance, and can effectively absorb the impact force when the key is pressed, reducing noise.
[0037] The working principle is that the stroke of the button 2 is adjusted by switching the stroke adjustment mechanism 9, thereby controlling the rubber part 8 to realize whether to participate in the work.
[0038] Although the exemplary embodiments of the present disclosure have been described, it should be understood by those skilled in the art that various changes and modifications can be made to the exemplary embodiments of the present disclosure without departing from the spirit and scope of the present disclosure in essence. Therefore, all changes and modifications are included in the protection scope of the present disclosure defined by the claims.
Claims
1. An optical axis button device with adjustable silent mode, characterized in that: include: A PCB substrate and a key mounted on the front side of the PCB substrate, wherein a light triggering assembly corresponding to the key is mounted on the back side of the PCB substrate, and the light triggering assembly is composed of a light source and a light sensor that are matched with each other; when the key is pressed, the light sensor is blocked from sensing the light source to achieve triggering; the key comprises a base, a key body matched with the base, and a plastic part fixed on the mounting body, wherein the key body is mounted in the base and has a resettable active stroke, and when the key body is at the lowest stroke, it is located on the light transmission path between the light source and the light sensor, and is used to cut off the light transmission path to achieve light-sensitive triggering; a stroke adjustment mechanism corresponding to the key body is mounted on the back side of the PCB substrate, and the distance of the active stroke is adjusted via the stroke adjustment mechanism to control whether the plastic part and the base are in contact and matched within the active stroke; the stroke adjustment mechanism is located in the light transmission path of the light triggering assembly, and the stroke adjustment mechanism is provided with a window position to avoid light transmission.
2. The optical axis key device with adjustable silent mode as claimed in claim 1, characterized in that: A space matching the key is provided on the PCB substrate, and the key is fixedly installed in the space.
3. The optical axis key device with adjustable silent mode as claimed in claim 1, characterized in that: The base has a cavity for accommodating and installing the key body. The key body is installed in the cavity, and at least a part of the key body extends upward out of the base.
4. The optical axis key device with adjustable silent mode as claimed in claim 1, characterized in that: The button body and the base are matched with each other through at least one spring component to achieve the resetting of the active stroke.
5. The optical axis key device with adjustable silent mode as claimed in claim 1, characterized in that: The key body has a guide post in the stroke direction, the guide post faces the preset opening at the bottom of the base and is aligned with the stroke adjustment mechanism. The guide post can cut off the light transmission path in the downward position to realize the inductive triggering of the trigger assembly; the stroke adjustment mechanism is a switching block installed on the bottom surface of the base and capable of switching positions, and a connector for installing the switching block on the bottom surface of the PCB substrate; the switching block is stepped, with a deep step position and a shallow step position, the deep step position forms a low stroke position when it cooperates with the bottom end of the guide post, and the shallow step position forms a high stroke position when it cooperates with the bottom end of the guide post, and the switching guide post is switched to the high stroke position or the low stroke position by sliding the switching block; the connector avoids the light transmission path, and a through groove is opened on the switching block to form a window position; the rubber part is installed on the key body and located in the base, and is relatively matched with the bottom surface of the base, a working stroke is formed between the rubber block and the bottom surface of the base, the height of the working stroke is greater than the high stroke position and less than the low stroke position, when the guide post cooperates with the low stroke position, the rubber block contacts and cooperates with the switching block earlier than the guide post, so as to realize silence.