Light guide knob based on electromagnetic induction technology

Abstract

The utility model discloses a light guide knob based on an electromagnetic induction technology, which is characterized in that the knob is provided with a luminous mark and a shaft hole, a light source and an induction receiving module are fixed at the bottom of the knob, a panel is arranged below the knob, an induction transmitting module is arranged on the panel, and the light guide knob further comprises a rotating element. A rotating shaft of the rotating element penetrates through the through hole in the panel and is fixedly connected with the shaft hole; and a main body of the rotating element is fixed on the panel. The induction transmitting module and the induction receiving module form a wireless charging module, the light guide thought of a traditional light guide knob is converted into the wireless conductive thought, the light source is sealed in the knob, the defect of light leakage of the traditional light guide knob is overcome, meanwhile, the light source in the knob is flexible in layout, light uniformity can be achieved more easily, and the light guide knob is more convenient to use. In addition, the light guide performance of the knob cannot be affected by factors such as dust after long-time work.

Description

Technical Field

[0001] This utility model relates to a light-guiding knob based on electromagnetic induction technology, which can be applied to various industrial control cockpit control panels and belongs to the field of human-computer interaction technology. Background Technology

[0002] Knobs typically serve as the operating parts of rotating components such as rotary switches, potentiometers, and encoders, functioning both as force transmitters and decorative elements. In dimly lit environments, light-guiding knobs are highly desirable. Traditional light-guiding knobs generally use a light source mounted on the panel, which then guides the light to the knob, achieving a light-guiding function through markings on the knob. However, this method often suffers from light leakage; some of the light shining from the panel onto the knob leaks out through the gap between the knob and the panel, affecting the user experience. Furthermore, the traditional method of placing the light source on the panel limits its placement, resulting in poor uniformity of brightness on the knob's markings. Additionally, after prolonged use, dust gradually accumulates on the light-guiding components of the light source on the panel, affecting its light-guiding performance. Summary of the Invention

[0003] The purpose of this invention is to provide a light-guiding knob based on electromagnetic induction technology, which can solve the problem of light leakage, improve uniformity, and is not easily affected by dust after long-term operation.

[0004] To achieve the above objectives, this utility model provides a light-guiding knob based on electromagnetic induction technology. The knob includes a light-emitting mark and a shaft hole. A light source and a sensing and receiving module are fixed to the bottom of the knob. A panel is located below the knob, and the panel houses the sensing and emitting module. It also includes a rotating element whose rotation axis passes through a through hole in the panel and is fixedly connected to the shaft hole. The main body of the rotating element is fixed to the panel. The sensing and emitting module and the sensing and receiving module constitute a wireless charging module. After the sensing and emitting module is connected to a power source, it generates an induced electromagnetic field. The sensing and receiving module converts the electromagnetic field into electrical energy, providing power for the light source.

[0005] Preferably, the knob has a slot at its bottom, into which the light source and sensor module are embedded to achieve an integrated appearance.

[0006] This utility model provides a light-guiding knob based on electromagnetic induction technology. Utilizing the basic principle of electromagnetic induction, it transforms the traditional "light guiding" concept of light-guiding knobs into a "wireless conduction" concept. Because the light source is enclosed in the knob, it overcomes the defect of light leakage in traditional light-guiding knobs. At the same time, the flexible layout of the light source in the knob makes it easier to achieve light uniformity. Furthermore, after long-term operation, factors such as dust will not affect the light guiding performance of the knob. Attached Figure Description

[0007] Figure 1 This is a cross-sectional view of the light guide knob provided in the embodiment.

[0008] Figure 2 This is an exploded view (top view) of the light guide knob provided in the embodiment.

[0009] Figure 3 This is an exploded view (bottom view) of the light guide knob provided in the embodiment. Detailed Implementation

[0010] To make this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings.

[0011] Referring to Figures 1, 2, and 3, the technical solution of this utility model provides a light-guiding knob based on electromagnetic induction technology. The knob 1 has a light-emitting mark 11 and a shaft hole 12. A light source 2 and a sensing receiving module 3 are fixed to the bottom of the knob 1. The power output of the sensing receiving module 3 is electrically connected to the light source 2. A panel 4 is located below the knob 1, and a sensing emitting module 5 is located on the panel 4. The panel 4 also includes a rotating element 6. The rotation shaft of the rotating element 6 passes through a through hole in the panel 4 and is fixedly connected to the shaft hole 12. The main body of the rotating element 6 is fixed to the panel 4.

[0012] In this example, the knob 1 has a slot 13 at the bottom, which is used to embed and install the light source 2 and the sensing and receiving module 3, so that the knob presents an integrated appearance.

[0013] This embodiment is based on the principle of electromagnetic induction technology. After the induction transmitting module 5 is powered on, it generates an alternating electromagnetic field, which in turn causes the induction receiving module 3 to generate an induced current, further illuminating the light source 2 and lighting up the luminous mark 11, thus realizing the light guiding function of the knob. In this solution, the light source is embedded in the knob, overcoming the defect of light leakage in traditional light guiding knobs; at the same time, the light source layout is flexible, and the light is fully diffused within the knob, improving the uniformity of the brightness of the luminous mark; in addition, because the light source is directly embedded in the bottom of the knob, the light propagation path is reduced, and dust and other debris do not affect the light guiding performance after long-term operation.

Claims

1. A light-guiding knob based on electromagnetic induction technology, characterized in that... The knob (1) has an luminous mark (11) and a shaft hole (12). A light source (2) and a sensing and receiving module (3) are fixed at the bottom of the knob (1). A panel (4) is provided below the knob (1). A sensing and emitting module (5) is provided on the panel (4). The rotating element (6) has a rotating shaft that passes through a through hole on the panel (4) and is fixedly connected to the shaft hole (12). The main body of the rotating element (6) is fixed on the panel (4).

2. A light-guiding knob based on electromagnetic induction technology as described in claim 1, characterized in that... The knob (1) has a slot (13) at the bottom, into which the light source (2) and the sensing receiver module (3) are embedded.

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