CN214123762U

CN214123762U - Volume adjusting mechanism

Info

Publication number: CN214123762U
Application number: CN202022839397.7U
Authority: CN
Inventors: 何定; 刘治; 杨振华; 周海龙
Original assignee: Shenzhen Qianan Technology Co ltd
Current assignee: Shenzhen Qianan Technology Co ltd; Shenzhen Thousandshores Technology Co Ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-09-03
Anticipated expiration: 2030-11-30
Also published as: AU2020104091A4

Abstract

The utility model discloses a volume adjustment mechanism, including upper cover, knob, potentiometre, support and PCB board, knob rotatable coupling covers the upper surface in the upper cover, the PCB board is fixed in upper cover lower surface, the support is located between PCB board and the upper cover, has seted up a storage tank on this PCB board, the potentiometre is worn to establish the storage tank, just potentiometre and support fixed connection, the knob is connected with the support with magnetism actuation mode to it rotates to drive the potentiometre when the knob is rotatory. Compared with the prior art, the utility model discloses among the volume control mechanism knob and support pass through the mode of magnetism actuation to be connected, and potentiometre and support fixed connection, then can drive the potentiometre and rotate when the rotatory knob of user to change the resistance value and know in order to adjust the volume, the utility model discloses well potentiometre and knob separation, the upper cover need not the trompil, the waterproof performance preferred.

Description

Volume adjusting mechanism

Technical Field

The utility model relates to a sound equipment technical field, more specifically relate to a volume adjustment mechanism.

Background

The sound box is a device which can convert the audio signal into sound, and a power amplifier is arranged in a main machine box body or a bass box body, and the sound box body emits sound after amplifying the audio signal so as to increase the sound. At present, the audio amplifier volume control function generally uses rotary switch to realize control, and rotary switch one end is stretched into in the audio amplifier and is connected with the potentiometre promptly, and the user can adjust the volume through rotatory rotary switch, however, this kind of connection structure of rotary switch and potentiometre needs trompil on the audio amplifier casing, and water is easy in getting into the audio amplifier from trompil department, influences the life of audio amplifier.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a volume adjustment mechanism that can improve audio amplifier waterproof performance is provided.

In order to achieve the purpose, the utility model provides a volume adjustment mechanism, including upper cover, knob, potentiometre, support and PCB board, knob rotatable coupling covers the upper surface in the upper cover, the PCB board is fixed in upper cover lower surface, the support is located between PCB board and the upper cover, has seted up a storage tank on this PCB board, the potentiometre is worn to establish the storage tank, just potentiometre and support fixed connection, the knob is connected with the support with magnetism actuation mode to it rotates to drive the potentiometre when the knob is rotatory.

The further technical scheme is as follows: at least one magnet is arranged in the knob, and a metal sheet is arranged on the support corresponding to the magnet.

The further technical scheme is as follows: four magnets are arranged in the knob, and the metal sheet is an annular metal sheet.

The further technical scheme is as follows: at least one metal sheet is arranged in the knob, and a magnet is arranged on the support corresponding to the metal sheet.

The further technical scheme is as follows: at least one first magnet is arranged in the knob, and a second magnet with the magnetism opposite to that of the first magnet is arranged on the support corresponding to the first magnet.

The further technical scheme is as follows: the first magnet and the second magnet are both wafer magnets made of neodymium iron boron permanent magnets.

Compared with the prior art, the utility model discloses the knob is connected through the mode of magnetism actuation with the support among the volume control mechanism, and potentiometre and support fixed connection, then can drive the potentiometre and rotate when the rotatory knob of user to change the resistance value and know in order to adjust the volume, the utility model discloses well potentiometre and knob separation, the upper cover need not the trompil, and the waterproof performance preferred can avoid the waterproof problem that leads to because of potentiometre and knob lug connection.

The invention will become more apparent from the following description when taken in conjunction with the accompanying drawings which illustrate embodiments of the invention.

Drawings

Fig. 1 is an exploded schematic view of a volume adjustment mechanism according to an embodiment of the present invention.

Fig. 2 is a schematic top view of an embodiment of the volume adjustment mechanism of the present invention.

Fig. 3 is a schematic cross-sectional view of an embodiment of the volume adjustment mechanism of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, wherein like component numbers represent like components. It is obvious that the embodiments to be described below are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 3, fig. 1 to 3 show a specific embodiment of the volume adjusting mechanism 1 of the present invention. In the embodiment shown in the drawings, the volume adjusting mechanism 1 includes an upper cover 10, a knob 20, a potentiometer 30, a bracket 40 and a PCB 50, the knob 20 is rotatably connected to the upper surface of the upper cover 10, the PCB 50 is fixed to the lower surface of the upper cover 10 by a screw 301, the bracket 40 is located between the PCB 50 and the upper cover 10, an accommodating groove 501 is formed in the PCB 50, the potentiometer 30 penetrates through the accommodating groove 501, the potentiometer 30 is fixedly connected to the bracket 40, and the knob 20 and the bracket 40 are connected in a magnetic attraction manner to drive the potentiometer 30 to rotate when the knob 20 rotates. Preferably, in this embodiment, the PCB 50 is further provided with a flat cable seat 90, and the upper cover 10 and the bracket 40 may be made of ABS, PC or other plastic materials. Based on the above design, the utility model discloses knob 20 adopts the magnetism to inhale the mode with support 40 and is connected for potentiometre 30 and the separation of knob 20 do not have the lug connection, can drive potentiometre 30 rotatory when the user rotates knob 20, thereby change the resistance value in order to adjust the volume, upper cover 10 need not the trompil, and inside water can not get into from the outside, and the waterproof performance preferred can avoid the waterproof problem that leads to because of potentiometre 30 and knob 20 lug connection.

In some embodiments, at least one magnet 60 is disposed inside the knob 20, and a metal sheet 70 is disposed on the bracket 40 corresponding to the magnet 60, preferably, the metal sheet 70 may be an iron sheet. Specifically, as shown in fig. 1 and fig. 3, in this embodiment, at least one groove 201 for placing the magnet 60 is disposed in the knob 20, the magnet 60 may be fixed in the groove 201 in a tight fit manner, the upper surface of the bracket 40 is provided with a second accommodating space 401 for placing the metal sheet 70, the metal sheet 70 may be fixed in the second accommodating space 401 by an adhesive, and the bottom of the bracket 40 is fixedly connected to the potentiometer 30 by a screw 80.

Specifically, in the present embodiment, four magnets 60 are disposed in the knob 20, the metal sheet 70 is a ring-shaped metal sheet, and the stable connection between the knob 20 and the bracket 40 can be better maintained by the magnetic attraction between the magnets 60 and the ring-shaped metal sheet 70.

Understandably, in some other embodiments, the magnet 60 may be disposed on the bracket 40, and correspondingly, the metal sheet 70 may be disposed in the knob 20, which also enables the knob 20 and the bracket 40 to be firmly connected together in a magnetic attraction manner. Or, set up at least one first magnet in knob 20 set up magnetism and the opposite second magnet of first magnet magnetism on the support 40 corresponding to first magnet department, it can make knob 20 and support 40 link together firmly with the magnetism actuation mode equally, preferably, first magnet and second magnet all can be the disk magnet that is made by the neodymium iron boron permanent magnet.

With reference to fig. 1 and fig. 3, in the present embodiment, a first accommodating space 101 is formed on the upper surface of the upper cover 10, a rotating shaft 102 is disposed in the middle of the first accommodating space 101, and the lower surface of the knob 20 is located in the first accommodating space 101 and is rotatably connected to the upper cover 10 through the rotating shaft 102.

To sum up, the utility model discloses among the volume control mechanism knob is connected through the mode of magnetism actuation with the support, and potentiometre and support fixed connection, then can drive the potentiometre and rotate when the rotatory knob of user to change the resistance value and know in order to adjust the volume, the utility model discloses well potentiometre and knob separation, the upper cover need not the trompil, and the waterproof performance preferred can avoid the waterproof problem that leads to because of potentiometre and knob lug connection.

The present invention has been described above with reference to the preferred embodiments, but the present invention is not limited to the above-disclosed embodiments, and various modifications, equivalent combinations, which are made according to the essence of the present invention, should be covered.

Claims

1. A volume adjustment mechanism, characterized in that: including upper cover, knob, potentiometre, support and PCB board, knob rotatable coupling covers the surface in the upper cover, the PCB board is fixed in upper cover lower surface, the support is located between PCB board and the upper cover, has seted up a storage tank on this PCB board, the potentiometre is worn to establish the storage tank, just potentiometre and support fixed connection, the knob is connected with the support with magnetism actuation mode to it rotates to drive the potentiometre when the knob is rotatory.

2. The volume adjustment mechanism of claim 1, wherein: at least one magnet is arranged in the knob, and a metal sheet is arranged on the support corresponding to the magnet.

3. The volume adjustment mechanism of claim 2, wherein: four magnets are arranged in the knob, and the metal sheet is an annular metal sheet.

4. The volume adjustment mechanism of claim 1, wherein: at least one metal sheet is arranged in the knob, and a magnet is arranged on the support corresponding to the metal sheet.

5. The volume adjustment mechanism of claim 1, wherein: at least one first magnet is arranged in the knob, and a second magnet with the magnetism opposite to that of the first magnet is arranged on the support corresponding to the first magnet.

6. The volume adjustment mechanism of claim 5, wherein: the first magnet and the second magnet are both wafer magnets made of neodymium iron boron permanent magnets.