Volume adjustment control structure

Abstract

The utility model discloses a volume adjustment control structure, which comprises a main body, a knob and a light guide piece, a circuit board is arranged in the main body, and a Hall switch is arranged on the circuit board; the light guide part is arranged at the front end of the body, a magnet is arranged along the inner side face of the knob, the knob and the magnet are sleeved outside the light guide part, and the Hall switch and the magnet are opposite inside and outside through the light guide part. The front end of the light guide part is exposed out of the front end of the knob; and an LED is arranged on the circuit board and is aligned with the tail end of the light guide piece. According to the utility model, the knob drives the magnet to rotate, and the rotating magnet changes the magnetic field of the Hall switch to adjust the volume. The whole device is simple in structure, few in parts, convenient to assemble, smaller in size, more convenient to operate compared with a key mode and longer in service life. In addition, through the arrangement of the light guide structure, light can be transmitted from the front end of the light guide piece, and the LED lamp is more attractive and can be found and used in the dark environment easily.

Description

Technical Field

[0001] This utility model relates to the field of electronic product control technology, and in particular to a structure for volume adjustment control in products such as headphones. Background Technology

[0002] Many electronic products, such as headphones, have volume control mechanisms. Traditional volume control is usually achieved through up and down buttons or gear-type knobs. The disadvantages of such mechanisms are that they are relatively bulky, which is not conducive to controlling the overall size of the product, and assembly is relatively complex. In addition, existing volume control mechanisms do not pay much attention to aesthetics and are difficult to see and operate in dark environments. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a volume adjustment control structure that is simpler in structure, more reasonable in design, smaller in size, easier to assemble, and more aesthetically pleasing, in order to address the shortcomings of the existing technology. It can be used in products such as headphones and speakers.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a volume adjustment control structure, including a main body and a knob, a circuit board disposed in the main body, and a Hall switch disposed on the circuit board, characterized in that: a magnet is installed along the inner side of the knob, the magnet has a ring structure, the Hall switch is opposite to the magnet, so that the magnet covers the Hall switch on the inner side; it also includes a light guide, the light guide is installed at the front end of the main body, the knob and the magnet are sleeved on the outside of the light guide, the Hall switch and the magnet are opposite to each other through the light guide, and the front end of the light guide is exposed at the front end of the knob; an LED is disposed on the circuit board, the LED is aligned with the tail end of the light guide.

[0005] Furthermore, the light guide is a cylindrical structure that is fixedly connected to the main body, and a knob and a magnet are mounted on the outside of the light guide to form a structure that can rotate relative to the light guide.

[0006] Furthermore, a retaining ring extending towards the light guide is provided on the inner side of the knob, with the retaining ring near the tail end of the knob and the front end of the magnet attached to the retaining ring; a washer ring is provided at the front end of the main body, with the washer ring attached to the rear end of the magnet.

[0007] Furthermore, a groove is provided along the outer surface of the light guide, and a washer is provided in the groove. The washer contacts the inner surface of the knob to increase friction, making the knob feel more substantial when rotated.

[0008] Furthermore, the groove is an annular groove, and the washer is a silicone ring made of silicone. The washer is embedded in the groove and protrudes outward to contact the knob.

[0009] Preferably, at least two LEDs are provided on the circuit board, with each LED aligned with the tail end of the light guide in a staggered configuration, so that the light emitted by the light guide is more uniform.

[0010] The knob is a circular sleeve structure, which can be made of metal and has anti-slip texture on its outer surface. This makes it longer and easier to operate with the anti-slip texture.

[0011] This invention utilizes a knob to rotate a magnet, thereby altering the magnetic field of a Hall effect switch to adjust the volume. The entire device has a simple structure, few parts, is easy to assemble, and is smaller in size. It is also more convenient to operate and has a longer lifespan compared to button-based methods. Furthermore, the light guide structure allows light to shine through the front of the light guide, which is not only more aesthetically pleasing but also helps in finding and using the device in dark environments. Attached Figure Description

[0012] Figure 1 This is a structural diagram of the present invention;

[0013] Figure 2 This is a structural diagram of the present invention after the knob has been removed;

[0014] Figure 3 This is a cross-sectional structural diagram of the main parts of this utility model.

[0015] In the diagram, 1 is the main body, 2 is the circuit board, 21 is the Hall switch, 22 is the LED, 3 is the knob, 31 is the retaining ring, 4 is the magnet, 5 is the light guide, 51 is the groove, 6 is the washer, 7 is the washer ring, and 8 is the wire. Detailed Implementation

[0016] In this embodiment, refer to Figure 1-Figure 3 The volume control structure includes a main body 1 and a knob 3. A circuit board 2 is installed in the main body 1, and a Hall switch 21 is mounted on the circuit board 2. A magnet 4, which is ring-shaped, is installed along the inner side of the knob 3. The Hall switch 21 is positioned opposite the magnet 4, with the magnet 4 covering the Hall switch 21 on the inside. When the knob 3 is rotated, the magnet 4 rotates accordingly, thereby changing the magnetic field of the Hall switch 21 and thus adjusting the volume. This principle is existing technology and will not be elaborated upon here. A light guide 5 is also included, mounted at the front end of the main body 1. The knob 3 and magnet 4 are fitted around the outside of the light guide 5, with the Hall switch 21 and magnet 4 facing each other across the light guide 5. The front end of the light guide 5 protrudes from the front end of the knob 3. An LED 22 is mounted on the circuit board 2, aligned with the rear end of the light guide 5. Light can be emitted from the front end of the light guide 5, improving aesthetics and making it easier to locate the switch in the dark.

[0017] The light guide 5 is a cylindrical structure, which is connected and fixed to the main body 1. The knob 3 and the magnet 4 are installed on the outside of the light guide 5 to form a structure that can rotate relative to the light guide 5, while the light guide 5 remains fixed.

[0018] A retaining ring 31 extending toward the light guide 5 is provided on the inner side of the knob 3. The retaining ring 31 is an integral structure with the knob 3 and is close to the tail end of the knob 3. The front end face of the magnet 4 is attached to the retaining ring 31. A washer ring 7 is provided at the front end of the main body 1, and the washer ring 7 is attached to the rear end face of the magnet 4.

[0019] A groove 51 is provided along the outer surface of the light guide 5, and a washer 6 is provided in the groove 51. The washer 6 contacts the inner surface of the knob 3 to increase friction, making the knob 3 feel more substantial when rotated.

[0020] The groove 51 is an annular groove, and the washer 6 is a silicone ring made of silicone. The washer 6 is embedded in the groove 51 and protrudes outward to contact the knob 3.

[0021] Two LEDs 22 are set on the circuit board 2. The two LEDs 22 are aligned with the two sides of the tail end of the light guide 5 in a staggered and symmetrical structure, so that the light emitted by the light guide 5 is more uniform.

[0022] Knob 3 has a circular sleeve structure and can be made of metal. Its outer surface is textured with anti-slip texture, which makes it longer and easier to operate.

[0023] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. A volume adjustment control structure, comprising a main body and a knob, wherein a circuit board is arranged in the main body, and a Hall switch is arranged on the circuit board, characterized in that: A magnet is installed along the inner side of the knob, and the magnet is a ring-shaped structure. The Hall switch is opposite to the magnet inside and outside, so that the magnet covers the Hall switch inside; it also includes a light guide, which is installed at the front end of the main body, the knob and the magnet are sleeved on the outside of the light guide, the Hall switch is opposite to the magnet across the light guide, and the front end of the light guide is exposed at the front end of the knob; an LED is arranged on the circuit board, and the LED is aligned with the tail end of the light guide.

2. The volume adjustment control structure according to claim 1, characterized in that: The light guide is a cylindrical structure, which is connected and fixed to the main body. The knob and the magnet are installed on the outside of the light guide to form a structure that can rotate relative to the light guide.

3. The volume adjustment control structure according to claim 1, characterized in that: A circle of clamping ring extending toward the light guide is arranged on the inner side of the knob, the clamping ring is close to the tail end of the knob, and the front end surface of the magnet is arranged against the clamping ring; a gasket is arranged at the front end of the main body, and the gasket is arranged against the rear end surface of the magnet.

4. The volume adjustment control structure according to claim 1, characterized in that: A groove is arranged along the outer surface of the light guide, a gasket is arranged in the groove, and the gasket contacts the inner surface of the knob to increase friction.

5. The volume adjustment control structure according to claim 4, characterized in that: The groove is an annular groove, and the gasket is a silicone ring made of silicone. The gasket is embedded in the groove and a portion of the gasket protrudes outward to contact the knob.

6. The volume adjustment control structure according to claim 1, characterized in that: At least two LEDs are arranged on the circuit board, and each LED is aligned with the rear end of the light guide member in a mutually staggered structure.

7. The volume adjustment control structure according to claim 1, characterized in that: The knob is a circular sleeve-shaped structure, and anti-slip grooves are arranged on its outer surface.

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