A magnetic shaft device with dual lamp positions

By employing a dual-lamp structure and light guide column design on the magnetic axis keyboard, the problem of limited LED light range is solved, resulting in a more uniform lighting effect and improved user experience.

CN224288115UActive Publication Date: 2026-05-26DONGGUAN SUOAI ELECTRONICS & TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN SUOAI ELECTRONICS & TECH CO LTD
Filing Date
2025-05-20
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The limited range of LED lighting on existing magnetic axis keyboards results in uneven and inconsistent lighting effects, negatively impacting the user experience.

Method used

It adopts a dual-lamp structure, which symmetrically sets RGB lamps on the circuit board and forms a light clearance groove on the bottom cover to allow light to penetrate into the inside of the switch. Combined with light guide pillars or transparent top cover to guide the light, it ensures that the light covers most of the switch.

Benefits of technology

It significantly improves the uniformity and coordination of the lighting, enhancing the keyboard's lighting effects and user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a magnetic axis device with dual LED positions, including a circuit board, a lower cover disposed on the circuit board, an upper cover disposed on the lower cover, a shaft core disposed between the upper and lower covers, and a spring sleeved on the outside of the shaft core with its lower end pressing against the inside of the lower cover. The device is characterized by further including a magnet disposed at the bottom of the shaft core, a Hall sensor disposed on the circuit board and directly opposite the magnet, and RGB LEDs symmetrically disposed on the circuit board, whose light passes through the lower cover. The lower cover has light-relief grooves for the light from the RGB LEDs to pass through. This utility model provides a magnetic axis device with dual LED positions, which, without affecting the conduction of the key switches, allows the light to cover the entire axis through the dual-LED structure, greatly improving the uniformity and coordination of the lighting, ensuring the keyboard's lighting effect, and improving the user experience.
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Description

Technical Field

[0001] This utility model relates to the field of push-button switch technology, and in particular to a magnetic shaft device with dual lamp positions. Background Technology

[0002] A keyboard is a device used to input instructions and data to operate equipment. It also refers to a set of function keys arranged by a system to operate a machine or device. The keyboard is the most commonly used and primary input device, allowing users to input English letters, numbers, punctuation marks, etc., into a computer, thereby issuing commands and inputting data.

[0003] Current magnetic switch keyboards typically have an LED near each key to illuminate the characters on the keycaps or to provide lighting effects for the keys. This LED is usually mounted on one side of the key switch, but due to obstruction by the keycaps and other components, the LED's illumination range is limited, usually only illuminating about half of the key. Overall, the lighting effect is uneven and inconsistent. Utility Model Content

[0004] To address the aforementioned shortcomings, the purpose of this utility model is to provide a magnetic shaft device with dual LED positions. Without affecting the conduction of the key switches, the dual-LED structure allows the light to cover the entire shaft, significantly improving the uniformity and coordination of the lighting, ensuring the keyboard's lighting effect, and enhancing the user experience.

[0005] The technical solution adopted by this utility model to achieve the above objectives is as follows:

[0006] A magnetic shaft device with dual lamp positions includes a circuit board, a lower cover disposed on the circuit board, an upper cover disposed on the lower cover, a shaft core disposed between the upper cover and the lower cover, a spring sleeved on the outside of the shaft core and with its lower end pressing against the inside of the lower cover, a magnet disposed at the bottom of the shaft core, a Hall sensor disposed on the circuit board and facing the magnet, and RGB lamps symmetrically disposed on the circuit board and whose light passes through the lower cover. The lower cover has light clearance grooves formed for the light of the RGB lamps to pass through.

[0007] As a further improvement of this utility model, the Hall sensor is disposed on the back of the circuit board and directly opposite the position of the magnet.

[0008] As a further improvement of this utility model, the RGB light is mounted directly on the circuit board.

[0009] As a further improvement of this utility model, the RGB light is mounted upside down on the circuit board.

[0010] As a further improvement of this utility model, a clearance notch is formed on the lower side of the lower cover to allow the RGB lamp to be installed and to communicate with the light clearance groove.

[0011] As a further improvement of this utility model, two sets of light guide columns, which are in the shape of a "「" and match the RGB light, are provided between the upper cover and the lower cover. The lower end of the light guide column is embedded in the light clearance groove, and the upper end of the light guide column is fastened to the side wall of the lower cover.

[0012] As a further improvement of this utility model, a light guide clearance groove is formed on the upper cover to allow the light guide post to pass through.

[0013] As a further improvement of this utility model, a light-relief portion is formed on the upper cover, which communicates with the light-relief groove.

[0014] As a further improvement of this utility model, the top cover is a transparent PC top cover.

[0015] The beneficial effects of this utility model are as follows:

[0016] This magnetic switch is configured to include a circuit board, a lower cover on the circuit board, an upper cover on the lower cover, a core between the upper and lower covers, a spring sleeved on the outside of the core and with its lower end pressing against the inside of the lower cover, a magnet at the bottom of the core, a Hall sensor on the circuit board opposite the magnet, and RGB LEDs symmetrically arranged on the circuit board, whose light passes through the lower cover. The lower cover has light-recessing grooves for the RGB LEDs to pass through. By symmetrically arranging the RGB LEDs on the circuit board, the light emitted by the RGB LEDs can penetrate into the switch body through the light-recessing grooves, thus creating a good sense of penetration. Compared to switches on the market, it has stronger light transmittance, and the two sets of symmetrically arranged RGB LEDs can cover most of the switch body, greatly improving the uniformity and coordination of the lighting, ensuring the keyboard's lighting effects, and improving the user experience.

[0017] The above is an overview of the utility model's technical solution. The following description, in conjunction with the accompanying drawings and specific embodiments, will further illustrate the utility model. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of Embodiment 1, with the upper cover serving as a light-reducing section;

[0019] Figure 2 This is a schematic diagram of the bottom surface of Embodiment 1, with the upper cover serving as a light-reducing section;

[0020] Figure 3 This is an exploded view of Embodiment 1, with the upper cover serving as a light-reducing section;

[0021] Figure 4 This is a schematic diagram of the lower cover structure;

[0022] Figure 5 A schematic diagram of a light-guiding groove for coloring the top cover;

[0023] Figure 6 This is a schematic diagram of the overall implementation of Example 2;

[0024] Figure 7 This is a schematic diagram of the bottom surface of Example 2;

[0025] Figure 8 This is an exploded view of Example 2;

[0026] In the diagram: 1. Circuit board; 2. Lower cover; 21. Light clearance groove; 22. Clearance notch; 3. Upper cover; 31. Light guide clearance groove; 32. Light clearance section; 4. Shaft core; 5. Spring; 6. Magnet; 7. Hall sensor; 8. RGB light; 9. Light guide column. Detailed Implementation

[0027] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the specific implementation methods of this utility model will be described in detail below with reference to the accompanying drawings and preferred embodiments.

[0028] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Example 1

[0032] Please refer to Figures 1 to 8 This utility model provides a magnetic axis device with dual LED positions, including a circuit board 1, a lower cover 2 disposed on the circuit board 1, an upper cover 3 disposed on the lower cover 2, a core 4 disposed between the upper cover 3 and the lower cover 2, a spring 5 sleeved on the outside of the core 4 and with its lower end pressing against the inside of the lower cover 2, a magnet 6 disposed at the bottom of the core 4, a Hall sensor 7 disposed on the circuit board 1 and directly opposite the magnet 6, and RGB LEDs 8 symmetrically disposed on the circuit board 1, whose light passes through the lower cover 2. The lower cover 2 has light-recessing grooves 21 formed on it to allow the light from the RGB LEDs 8 to pass through. By symmetrically arranging the RGB LEDs 8 on the circuit board 1, the light emitted by the RGB LEDs 8 can penetrate into the interior of the axis through the light-recessing grooves 21, thus creating a good sense of penetration. Compared with axis devices on the market, it has stronger light transmittance, and the two sets of symmetrically arranged RGB LEDs 8 can cover most of the axis, greatly improving the uniformity and coordination of the lighting, ensuring the keyboard lighting effect, and improving the user experience.

[0033] Preferred, such as Figure 2 As shown, in order to save space in the shaft, the Hall sensor 7 is located on the back of the circuit board 1 and directly opposite the position of the magnet 6. This ensures that the Hall sensor 7 accurately senses the stroke of the magnet 6 on the shaft core 4, while also making room for the structure on the circuit board 1 and the lower end of the magnetic shaft, making the shaft's spatial structure more compact and its overall thickness thinner, thus meeting the different needs of different people for shaft height.

[0034] Regarding the specific method of setting the RGB lights 8 on the circuit board 1, as follows: Figure 1 , Figure 3 as well as Figure 5 As shown, the RGB LED 8 is mounted face up on the circuit board 1. "Face up" means that the light-emitting surface of the RGB LED 8 is facing upwards, i.e. towards the switch that needs to be illuminated, so that the light emitted by the RGB LED 8 directly illuminates the switch, resulting in better brightness.

[0035] Of course, the RGB LED 8 can also be mounted upside down on the circuit board 1. Upside-down mounting means that the RGB LED 8 is installed directly from the back of the circuit board 1. Compared to the front-mounted method, where the LED chip either forms a protrusion like an LED bead requiring the corresponding axis to make way, or requires soldering from the back of the circuit board 1 but necessitates the use of a light-transmitting mirror to allow the light to shine upwards, the upside-down method eliminates the need for a light-transmitting mirror, allowing the light to shine directly upwards. Furthermore, soldering can be performed normally from the back of the circuit board 1 (because the contacts use solder sheets or chips). Overall, it is simpler, easier to manufacture, and more efficient. The upside-down method also facilitates easier subsequent maintenance.

[0036] When the RGB LED 8 is mounted face down, in order to save more space between the switch and the circuit board 1, such as... Figure 1 , Figures 3 to 5 As shown, the lower cover 2 has a clearance notch 22 on its lower side to accommodate the installation of the RGB lamp 8 and to communicate with the light clearance groove 21. When the lower cover 2 is installed on the circuit board 1, the RGB lamp 8 is placed in the clearance notch 22, and the light emitted by it passes through the communicating light clearance groove 21 into the switch body, forming a good lighting effect. While ensuring the lighting effect of the RGB lamp 8, it also makes the entire switch structure more compact and its overall structure thinner and lighter, meeting the needs of different people for switch height.

[0037] Preferred, such as Figure 1 , Figures 3 to 5 As shown, to improve the lighting effect of the RGB lights 8, two sets of light guide pillars 9, which are in the shape of a "「" and match the RGB lights 8, are provided between the upper cover 3 and the lower cover 2. The lower end of the light guide pillar 9 is embedded in the light clearance groove 21, and the upper end of the light guide pillar 9 is fastened to the side wall of the lower cover 2, thereby achieving stable installation of the light guide pillar 9. The light emitted by the RGB lights 8 enters into the light guide pillar 9 and is effectively guided and dispersed to various parts of the switch by the light guide pillar 9, so that the light covers most of the switch, greatly improving the uniformity and coordination of the light, ensuring the lighting effect of the keyboard, and improving the user experience.

[0038] Preferably, the light guide post 9 is made of high-transmittance PMMA material. The high-transmittance PMMA material has a good light guiding effect, which effectively ensures the overall lighting effect of the shaft and improves the user experience.

[0039] Preferred, such as Figure 5As shown, regarding the specific structural arrangement of the upper end of the light guide post 9 within the upper cover 3, the upper cover 3 has a light guide clearance groove 31 formed to accommodate the upper end of the light guide post 9. The upper end of the light guide post 9 is embedded in the light guide clearance groove 31, thereby ensuring that the light guide post 9 is stably installed between the upper cover 3 and the lower cover 2, while also guaranteeing the light transmission effect of the light guide post 9, effectively ensuring the overall lighting effect of the shaft, and improving the user experience.

[0040] Of course, such as Figure 1 , Figure 3 As shown, the upper cover 3 may also have a light-yielding part 32 that communicates with the light-yielding groove 21. The top of the light guide column 9 extends out from the light-yielding part 32 of the upper cover 3, so that the light guide column 9 can better guide and emit light, further improve the uniformity and coordination of the light, ensure the lighting effect of the keyboard, and improve the user experience.

[0041] Regarding the specific connection method of the upper cover 3 and the lower cover 2, as follows: Figures 1 to 5 As shown, the lower cover 2 is provided with a fastening block, and the upper cover 3 is provided with a fastening groove. The fastening groove on the upper cover 3 is fastened into the fastening block of the lower cover 2, thereby fixing the upper cover 3 and the lower cover 2 and ensuring the normal operation of the shaft.

[0042] Regarding the specific structural configuration of this shaft, the shaft core 4 is made of POM material, which has good rigidity and fatigue strength, and is resistant to repeated impacts, thus ensuring the service life of this shaft. The magnet 6 is neodymium iron boron, which has high magnetism, light weight, and low price, effectively reducing production costs and ensuring the service life of this shaft. The upper cover 3 and lower cover 2 are both made of PC material, which has high impact strength and good stability, thus ensuring the service life of this shaft. The spring 5 is made of spring steel, which has good spring damping resistance, fatigue resistance, and good surface quality, thus ensuring the service life of this shaft.

[0043] Example 2

[0044] In the first embodiment, the structure of the shaft was described. This embodiment mainly focuses on the differences from other embodiments; identical structures will not be repeated in this embodiment.

[0045] like Figures 6 to 8As shown, the main difference between Embodiment 2 and Embodiment 1 is that this embodiment does not require the use of light guide pillars 9. The upper cover 3 is a transparent PC cover 3, allowing the light emitted from the RGB lights 8 to directly hit the transparent PC cover 3 through the light clearance slot 21. The light is then guided and dispersed by the transparent PC cover 3, thus covering most of the switch body, significantly improving the uniformity and coordination of the lighting, ensuring the keyboard's lighting effect, and improving the user experience. This structure effectively saves on the structure of light guide pillars 9, making the entire switch structure simpler, effectively improving production efficiency and saving production costs.

[0046] It should be noted that the magnetic shaft device with dual lamp positions disclosed in this utility model is an improvement on the specific structure, but the specific control method is not an innovation of this utility model. The RGB lamps, magnets, Hall sensors, circuit boards, and other components involved in this utility model can be general standard parts or components known to those skilled in the art. Their structures, principles, and control methods are all known to those skilled in the art through technical manuals or conventional experimental methods.

[0047] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, other structures obtained by using the same or similar technical features as the above embodiments of the present utility model are all within the protection scope of the present utility model.

Claims

1. A magnetic shaft device with double lamp positions, comprising a circuit board, a lower cover arranged on the circuit board, an upper cover arranged on the lower cover, a shaft core arranged between the upper cover and the lower cover, and a spring sleeved outside the shaft core and abutting against the lower cover at the lower end, characterized in that: It also includes a magnet disposed at the bottom of the shaft core, a Hall sensor disposed on the circuit board and facing the magnet, and RGB lights respectively symmetrically disposed on the circuit board and whose light passes through the lower cover, wherein the lower cover has light clearance grooves for the light of the RGB lights to pass through.

2. The magnetic shaft device with dual lamp positions according to claim 1, characterized in that: The Hall sensor is located on the back of the circuit board, directly opposite the position of the magnet.

3. The magnetic shaft device with dual lamp positions according to claim 1, characterized in that: The RGB LED is mounted directly on the circuit board.

4. The magnetic shaft device with dual lamp positions according to claim 1, characterized in that: The RGB LEDs are mounted upside down on the circuit board.

5. The magnetic shaft device with dual lamp positions according to claim 1, characterized in that: The lower cover has a clearance notch on its underside to accommodate the RGB light installation and to communicate with the light clearance slot.

6. The magnetic shaft device with dual lamp positions according to claim 1, characterized in that: Between the upper and lower covers, there are two sets of light guide columns that are in the shape of a "「" and match the RGB lights. The lower end of the light guide column is embedded in the light clearance groove, and the upper end of the light guide column is fastened to the side wall of the lower cover.

7. The magnetic shaft device with dual lamp positions according to claim 6, characterized in that: The upper cover has a light guide clearance groove that is positioned at the upper end of the light guide post.

8. The magnetic shaft device with dual lamp positions according to claim 1, characterized in that: The upper cover has a light-relief portion that communicates with the light-relief groove.

9. The magnetic shaft device with dual lamp positions according to claim 1, characterized in that: The top cover is a transparent PC cover.