Stepless dimming structure with pressure grading identification LED

Abstract

A stepless dimming structure with a pressure grading recognition LED comprises a switch frame, a substrate is arranged on the switch frame, a plurality of electrode strips are arranged on the substrate, a key frame is arranged on the switch frame, a limiting groove is formed in the key frame, a connecting plate is arranged in the limiting groove, a key face is arranged at the upper end of the connecting plate, and a pressure grading recognition LED is arranged at the lower end of the key face. An arc-shaped plate is arranged at the lower end of the connecting plate, and a limiting spring is arranged on the edge of the connecting plate; through elastic deformation of the arc-shaped plate and annular arrangement of the electrode strips, physical distinguishing of light touch operation and heavy pressure operation is achieved, the problem that according to an existing touch IC scheme, the pressure grade cannot be recognized is solved, the control precision is improved, different pressures correspond to conduction of different electrode strips, the control circuit can adjust the LED current in real time, the brightness is in smooth transition from the darkest to the brightest, and the LED brightness is improved. The step-type dimming pause feeling of a traditional key is avoided; a high-precision pressure sensor or a complex electronic circuit is not needed, the manufacturing cost is greatly reduced, and meanwhile the reliability of the structure is improved.

Description

Technical Field

[0001] This utility model relates to the field of lighting switches, and in particular to a stepless dimming structure with pressure-graded LED recognition. Background Technology

[0002] LED is a solid-state electric light source and a semiconductor lighting device with highly variable electrical characteristics. It features small size, high mechanical strength, low power consumption, long lifespan, easy adjustment and control, and zero pollution, making it a promising new type of light source product.

[0003] A patent with patent number CN222395846U describes a stepless dimming circuit, comprising a rectifier and filter circuit and a step-down circuit. The step-down circuit is connected to a main control circuit for adjusting its output state. The main control circuit is connected to a night light control circuit and a WIFI module. The output of the rectifier and filter circuit is connected to an auxiliary power supply for the main control circuit, the night light control circuit, and the WIFI module. The main control circuit includes a control module U6, and the step-down circuit includes a constant current drive module U5 controlled by the control module U6. By controlling the current of the LED lamp through the constant current drive module U5, stepless dimming is achieved, allowing the lamp's brightness to smoothly transition from its dimmest to its brightest state. By adjusting the brightness ratio of different colored LEDs on the LED panel, a color-changing function is achieved, enabling the lamp to display different color temperatures and color effects.

[0004] However, the existing control schemes using touch ICs cannot distinguish between light touch and heavy pressure operations, and can only adjust the light intensity through internal control circuits. To solve the above problem, a lamp switch with pressure classification is proposed. Utility Model Content

[0005] The purpose of this invention is to solve the problem that existing touch IC solutions in control schemes cannot distinguish between light touch and heavy pressure operations, and can only adjust the light intensity through internal control circuits.

[0006] The present invention adopts the following technical solution:

[0007] A stepless dimming structure with pressure-grading recognition LED includes a switch frame, a substrate on the switch frame, a plurality of electrode strips on the substrate, a button frame on the switch frame, a limit groove in the button frame, a connecting plate in the limit groove, a button surface at the upper end of the connecting plate, an arc plate at the lower end of the connecting plate, and a limit spring at the edge of the connecting plate.

[0008] Furthermore, the switch frame is annular cylindrical, and the switch frame is used to control the switching of LEDs. A substrate is provided at the bottom of the switch frame, and the substrate is electrically connected to the control circuit. The electrode strips are annular, and a number of electrode strips are arranged sequentially from the center outwards. The electrode strips on the upper surface of the substrate are electrically connected to the control panel.

[0009] Furthermore, the button holder is located at the upper end of the switch holder, the button holder is in the shape of a ring, and the bottom of the limiting groove is provided with several limiting springs, which are evenly distributed in the limiting groove.

[0010] Furthermore, the connecting plate is circular, the connecting plate is coupled with the limiting groove, one end of the limiting spring abuts against the lower surface of the connecting plate, and the other end is fixedly connected to the limiting groove. A button surface is fixedly provided on the upper end of the connecting plate for pushing the connecting plate.

[0011] Furthermore, an arc-shaped plate is fixedly installed at the lower end of the connecting plate. The bottom surface of the arc-shaped plate has a downwardly protruding arc. The arc-shaped plate is made of elastic material, and the lower surface of the arc-shaped plate has a conductive coating. The arc-shaped plate is located directly above the electrode strip.

[0012] Furthermore, the button surface is preferably made of a flexible PET substrate with a thickness of 0.2mm;

[0013] Furthermore, the electrode strip is made of laser-etched ITO electrode.

[0014] The beneficial effects of this utility model are:

[0015] By using the elastic deformation of the arc plate and the circular arrangement of the electrode strips, a physical distinction between light touch and heavy pressure operations is achieved, solving the problem that existing touch IC solutions cannot identify pressure levels, improving control accuracy. Different pressures correspond to different electrode strips being activated, and the control circuit can adjust the LED current in real time to make the brightness transition smoothly from the darkest to the brightest, avoiding the stuttering feeling of traditional button dimming.

[0016] By using basic mechanical components such as springs, arc plates, and electrode strips, high-precision pressure sensors or complex electronic circuits are not required, which greatly reduces manufacturing costs and improves the reliability of the structure. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram of a stepless dimming structure for an LED with pressure-graded recognition, which is a utility model.

[0018] Figure 2 An exploded structural diagram of a stepless dimming structure for an LED with pressure-graded recognition, which is a utility model.

[0019] Figure 3This is a partial cross-sectional view of a stepless dimming structure for a pressure-grading LED, according to a utility model.

[0020] In the diagram: 1. Switch frame; 2. Base plate; 3. Electrode strip; 4. Button frame; 5. Limiting groove; 6. Connecting plate; 7. Button surface; 8. Arc plate; 9. Limiting spring. Detailed Implementation

[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0024] Example 1

[0025] This utility model provides a stepless dimming structure with pressure grade recognition LED, including a switch frame 1, a substrate 2 on the switch frame 1, a plurality of electrode strips 3 on the substrate 2, a button frame 4 on the switch frame 1, a limiting groove 5 in the button frame 4, a connecting plate 6 in the limiting groove 5, a button surface 7 at the upper end of the connecting plate 6, an arc plate 8 at the lower end of the connecting plate 6, and a limiting spring 9 at the edge of the connecting plate 6.

[0026] Furthermore, the switch frame 1 is an annular cylinder, and the switch frame 1 is used to control the switching of the LED. A substrate 2 is provided at the bottom of the switch frame 1. The substrate 2 is electrically connected to the control circuit. The electrode strip 3 is annular, and several electrode strips 3 are arranged sequentially from the center outward. The electrode strip 3 on the upper surface of the substrate 2 is electrically connected to the control panel.

[0027] Furthermore, the button holder 4 is located at the upper end of the switch holder 1. The button holder 4 is in the shape of a ring. The bottom of the limiting groove 5 is equipped with several limiting springs 9, which are evenly distributed in the limiting groove 5.

[0028] Furthermore, the connecting plate 6 is circular and coupled to the limiting groove 5. One end of the limiting spring 9 abuts against the lower surface of the connecting plate 6, and the other end is fixedly connected to the limiting groove 5. A button surface 7 is fixedly provided on the upper end of the connecting plate 6 for pushing the connecting plate 6.

[0029] Furthermore, an arc-shaped plate 8 is fixedly installed at the lower end of the connecting plate 6. The bottom surface of the arc-shaped plate 8 has a downward protruding arc. The arc-shaped plate 8 is made of elastic material and has a conductive coating on its lower surface. The arc-shaped plate 8 is located directly above the electrode strip 3.

[0030] Furthermore, the button surface 7 is preferably made of a 0.2mm flexible PET substrate;

[0031] Furthermore, electrode strip 3 uses laser-etched ITO electrodes.

[0032] Working principle:

[0033] In use, the overall switch frame 1 is installed on the LED lamp to control the switching of the LED lamp. When the button surface 7 is not under force, the limit spring 9 supports the connecting plate 6, the arc plate 8 is separated from the electrode strip 3, and the circuit is not conductive. When the button surface 7 is lightly pressed, the connecting plate 6 drives the arc plate 8 to move downwards, and the conductive coating at the bottom of the arc plate 8 contacts the electrode strip 3 in the center area of ​​the substrate 2. At this time, the control circuit detects the conduction signal of the specific electrode strip 3 and triggers the low brightness dimming mode, and the LED works at the preset low brightness. When the button surface 7 is pressed down further, the connecting plate 6 compresses the limit spring 9 and moves further downwards, and the arc plate 8... As the elastic deformation amplitude increases, the conductive coating contacts the electrode strips 3 in the outer area of ​​the substrate 2. The control circuit recognizes the conduction signals of different electrode strips 3, triggering a high-brightness dimming mode, increasing the LED brightness, and achieving stepless dimming. After releasing the button surface 7, the limit spring 9 resets, causing the connecting plate 6 and the arc plate 8 to move upward. The arc plate 8 separates from the electrode strips 3, the circuit is disconnected, and the LED maintains its current brightness. The electrode strips 3 on the substrate 2 are arranged in stages according to pressure sensitivity. The control circuit outputs a corresponding PWM signal to adjust the LED drive current according to the conduction combination of different electrode strips 3, achieving stepless brightness variation.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A stepless dimming structure for an LED with pressure-graded recognition, characterized in that, The switch includes a switch frame (1), on which a base plate (2) is provided, and on which a plurality of electrode strips (3) are provided. A button frame (4) is provided on the switch frame (1), and a limiting groove (5) is provided in the button frame (4). A connecting plate (6) is provided in the limiting groove (5). A button surface (7) is provided at the upper end of the connecting plate (6), and an arc plate (8) is provided at the lower end of the connecting plate (6). A limiting spring (9) is provided on the edge of the connecting plate (6).

2. The stepless dimming structure with pressure-grading recognition LED according to claim 1, characterized in that, The switch frame (1) is an annular cylinder. The switch frame (1) is used to control the switching of LEDs. A base plate (2) is provided at the bottom of the switch frame (1). The base plate (2) is electrically connected to the control circuit. The electrode strip (3) is annular. Several electrode strips (3) are arranged sequentially from the center outwards. The electrode strips (3) on the upper surface of the base plate (2) are electrically connected to the control panel.

3. The stepless dimming structure with pressure-grading recognition LED according to claim 2, characterized in that, The button holder (4) is located at the upper end of the switch holder (1). The button holder (4) is in the shape of a ring. The limiting groove (5) is placed at the bottom and a number of limiting springs (9) are provided. The limiting springs (9) are evenly distributed in the limiting groove (5).

4. The stepless dimming structure with pressure-grading recognition LED according to claim 3, characterized in that, The connecting plate (6) is circular and is coupled to the limiting groove (5). One end of the limiting spring (9) abuts against the lower surface of the connecting plate (6) and the other end is fixedly connected to the limiting groove (5). A button surface (7) is fixedly provided on the upper end of the connecting plate (6) for pushing the connecting plate (6).

5. The stepless dimming structure with pressure-grading identification LED according to claim 4, characterized in that, An arc-shaped plate (8) is fixedly installed at the lower end of the connecting plate (6). The bottom surface of the arc-shaped plate (8) has a downward protruding arc. The arc-shaped plate (8) is made of elastic material. The lower surface of the arc-shaped plate (8) has a conductive coating. The arc-shaped plate (8) is located directly above the electrode strip (3).

6. The stepless dimming structure with pressure-grading recognition LED according to claim 5, characterized in that, The button surface (7) uses a 0.2mm flexible PET substrate.

7. The stepless dimming structure with pressure-grading recognition LED according to claim 6, characterized in that, The electrode strip (3) is made of laser-etched ITO electrode.

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