CN212461488U

CN212461488U - Rotary regulating switch

Info

Publication number: CN212461488U
Application number: CN201821990248.7U
Authority: CN
Inventors: 吴福喜; 易金平
Original assignee: Dongguan Kaihua Electronics Co Ltd
Current assignee: Dongguan Kaihua Electronics Co Ltd
Priority date: 2018-11-28
Filing date: 2018-11-28
Publication date: 2021-02-02
Anticipated expiration: 2028-11-28

Abstract

The utility model discloses a rotary regulating switch, including a PCB board, set up a base on the PCB board, set up on the PCB board and be located a switch module of base, set up in switch module top and be located an adjustable component of base, and set up a key cap in base top, wherein, this adjustable component electricity is connected to the PCB board, and set up a rotating hole that is located switch module top on this adjustable component, this key cap lower extreme has from top to bottom activity insert locate base and rotating hole in and a rotating last axle of rotatable adjustable component and press the switch module. The utility model provides a rotary regulating switch as long as two parts of operation key cap can be controlled and two kinds of functions are realized, can not produce the interference between the two, in whole function operation, convenient operation, each structure action is smooth and easy, accurate, and is high to the regulation degree of accuracy of functions such as the volume of jointing equipment or screen light luminance.

Description

Rotary regulating switch

Technical Field

The utility model relates to a rotary switch field especially relates to a spiral shell moving type regulating switch.

Background

The existing combined product of the switch and the encoder is characterized in that a knob of the encoder and a key of the switch are two independent parts, except for the position matching on the assembly, the structure and the use are respectively, the knob is rotated to generate a coding signal, and the key is pressed to start the switch.

By adopting the combination mode, the switch encoder can be made to be very thin, becomes a practical thin switch encoder, and is particularly suitable for being used by a remote controller to control a fan, a sound and the like. But the obvious disadvantage is that the use is inconvenient. Because the knob and the key are two independent parts, the knob is a turntable provided with a central hole site, the key is assembled at the central hole site of the knob, and the two positions are close to each other, people must clearly see the positions of the knob and the key when using the rotary switch. In general, the key is positioned at the central hole position, so that the key can not be pressed by mistake and can be pressed by feeling. The button is positioned on the side ring, when the knob is rotated from the front of the knob by a finger, the button is easy to touch, so that the force for rotating the knob is dispersed, the hand feeling is also dispersed, and the rotation of the knob by rotating the button has no effect.

Therefore, the whole product is extremely inconvenient to use, unsmooth and inaccurate in operation, and has great influence on the realization of the functions of the product.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough, the utility model aims to provide a rotary regulating switch, with encoder or potentiometre, with dabber switch effective, compact combination be in the same place, whole switch encoder or potentiometre has been given, and dabber switch's function, as long as the operation key cap can control two parts and realize two kinds of functions, can not produce the interference between the two, in whole function operation, convenient operation, each structure action is smooth and easy, accurate, the regulation degree of accuracy to functions such as the volume of jointing equipment or screen light luminance is high.

The utility model discloses a reach the technical scheme that above-mentioned purpose adopted and be:

a rotary regulating switch is characterized by comprising a PCB, a base arranged on the PCB, a switch module arranged on the PCB and positioned in the base, an adjustable element arranged above the switch module and positioned in the base, and a key cap arranged above the base, wherein the adjustable element is electrically connected to the PCB, a rotating hole positioned above the switch module is formed in the adjustable element, and the lower end of the key cap is provided with a rotating pressing shaft which is movably inserted into the base and the rotating hole from top to bottom and can rotate the adjustable element and the press switch module.

As a further improvement of the present invention, the adjustable element is an encoder or a potentiometer.

As a further improvement of the utility model, the lower part of the rotating pressing shaft is a prism, and the rotating hole is a prismatic hole matched with the prism.

As a further improvement of the present invention, the base has a holding cavity for holding the adjustable element and the switch module, and a plug hole communicating with the holding cavity and allowing the rotating pressing shaft to be inserted is formed downward on the upper end surface of the base; the key cap cover is arranged on the base, the lower end face of the key cap is provided with a yielding groove for embedding the upper part of the base, and the rotating pressing shaft extends downwards from the yielding groove and is inserted into the jack.

As a further improvement, the rotating pressing shaft is peripheral and is positioned on the base inner sleeve and is provided with a limit gasket, and the width of the limit gasket is greater than that of the jack.

As a further improvement of the utility model, the outer edge of the lower part of the base is provided with a connecting block, the lower end surface of the connecting block is convexly provided with a positioning column, and the PCB is provided with a positioning hole for inserting the positioning column; a plurality of fixing holes are formed in the connecting block, and a fixing piece for fixing the connecting block on the PCB is inserted into each fixing hole.

As a further improvement of the present invention, the switch module is a tact switch.

As a further improvement of the utility model, the base is a plastic shell.

As a further improvement of the present invention, a light guide structure is disposed on the key cap, and a light emitting element is disposed on the PCB and below the light guide structure.

As a further improvement of the present invention, the light guide structure comprises a light guide ring disposed at the outer edge of the lower end of the key cap, and a light guide strip integrally formed on the light guide ring, embedded into one side of the key cap, and extending to the upper end surface of the key cap; the light-emitting element is arranged below the light guide ring; a clamping position which extends to the upper end face of the keycap and is used for clamping the light guide strip is arranged on one side edge of the keycap.

As a further improvement of the utility model, a plurality of upper clamping columns are convexly arranged on the light guide ring, and a plurality of lower clamping grooves for the upper clamping columns to be clamped are arranged on the edge of the lower end surface of the keycap; the side edge of the upper part of the light guide strip is convexly provided with a plurality of side clamping columns clamped into the keycap.

As a further improvement of the present invention, the light emitting element is an LED lamp or an RGB lamp.

The utility model has the advantages that: the encoder or the potentiometer and the light touch switch are integrated in the base, and the rotating pressing shaft arranged at the lower end of the key cap can be used for rotating the encoder or the potentiometer to enable the encoder or the potentiometer to rotate and can also be used for pressing the light touch switch downwards, so that the encoder or the potentiometer and the light touch switch are effectively and compactly combined, namely, the functions of the encoder or the potentiometer and the light touch switch of the whole switch are endowed, two functions can be realized by controlling the two parts only by operating the key cap, no interference is generated between the two functions, and in the whole function operation, each structure action is smooth and accurate, and the adjusting accuracy of the functions of the volume of the connecting equipment or the brightness of screen lights and the like is high. When the keyboard is operated, the rotating press shaft at the lower end of the key cap can drive the encoder or the potentiometer to rotate only by rotating the key cap, so that the functions of volume of connected equipment or screen light brightness and the like can be adjusted; after the key cap is adjusted, when the key cap is pressed down, the rotary pressure shaft at the lower end of the key cap presses the tact switch to enable the tact switch to be conducted, and the confirming function can be achieved.

The above is an overview of the technical solution of the present invention, and the present invention is further explained with reference to the accompanying drawings and the detailed description.

Drawings

FIG. 1 is an exploded view of the present invention;

fig. 2 is a schematic external structural view of the present invention;

fig. 3 is a cross-sectional view of the present invention;

FIG. 4 is a schematic structural diagram of the key cap of the present invention;

fig. 5 is a schematic structural view of the base of the present invention;

fig. 6 is another schematic structural view of the base of the present invention;

fig. 7 is a schematic view of the key cap and the light guide structure of the present invention.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose, the following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings and preferred embodiments.

Referring to fig. 1 to 3, an embodiment of the present invention provides a rotary type adjustment switch, including a PCB 1, a base 2 disposed on the PCB 1, a switch module 3 disposed on the PCB 1 and located in the base 2, an adjustable element 4 disposed above the switch module 3 and located in the base 2, and a key cap 5 disposed above the base 2, wherein the adjustable element 4 is electrically connected to the PCB 1, and a rotating hole 41 disposed above the switch module 3 is disposed on the adjustable element 4, and a rotating pressing shaft 51 movably inserted in the base 2 and the rotating hole 41 and capable of rotating the adjustable element 4 and the press switch module 3 is disposed at a lower end of the key cap 5.

In this embodiment, the adjustable element 4 is an encoder or a potentiometer, and both the encoder and the potentiometer can be inserted through the pins and soldered on the PCB board 1. The specific structure and the operating principle of the encoder and the potentiometer are the same as those of the conventional encoder and potentiometer.

In this embodiment, the switch module 3 is a tact switch, and the tact switch is soldered on the PCB board 1 through a solder leg. Meanwhile, the base 2 may be a plastic housing.

In this embodiment, the rotating pressing shaft 51 is disposed at the lower end of the key cap 5, so that the encoder or the potentiometer can be rotated and the tact switch can be pressed downward, thereby combining the encoder or the potentiometer with the tact switch, and providing the whole switch with the functions of the encoder or the potentiometer and the tact switch. In the specific operation, as long as the key cap 5 is rotated, the rotating pressing shaft 51 at the lower end of the key cap 5 can drive the encoder or the potentiometer to rotate, so that the functions of volume of the connected equipment, screen light brightness and the like can be adjusted; after the adjustment is completed, when the key cap 5 is pressed down, the rotating pressing shaft 51 at the lower end of the key cap 5 presses the tact switch to conduct the tact switch, so that the function of confirmation can be achieved.

In this embodiment, as shown in fig. 4, the lower portion of the rotating pressing shaft 51 is a prism 511, and the rotating hole 41 is a prism hole matching with the prism 511, so that when the rotating pressing shaft 51 rotates, the rotating encoder or the potentiometer can be driven to rotate.

As shown in fig. 5 and fig. 6, the base 2 has a receiving cavity 21 for receiving the adjustable device 4 and the switch module 3, and the upper end surface of the base 2 is downwardly provided with a plug hole 22 communicating with the receiving cavity 21 and allowing the rotating pressing shaft 51 to be inserted therein; the keycap 5 is covered on the base 2, the lower end surface of the keycap 5 is provided with a yielding groove 52 for embedding the upper part of the base 2, and the rotating pressing shaft 51 extends downwards from the yielding groove 52 and is inserted into the jack 22.

Meanwhile, in order to prevent the key cap 5 from being pulled out of the base 2, in this embodiment, a limiting gasket 6 is sleeved on the periphery of the rotating pressing shaft 51 and located in the base 2, the width of the limiting gasket 6 is greater than that of the insertion hole 22, and the rotating pressing shaft 51 of the base 2 is limited by the limiting gasket 6, so that the key cap 5 can only move up and down within a certain range, and the key cap 5 cannot be pulled out of the base 2 integrally.

For the installation of the base 2, in this embodiment, the outer edge of the lower portion of the base 2 is provided with a connecting block 23, a positioning post 231 is convexly disposed on the lower end surface of the connecting block 23, a positioning hole 11 for inserting the positioning post 231 is disposed on the PCB 1, and the base 2 can be positioned after the positioning post 231 is inserted into the positioning hole 11. Meanwhile, a plurality of fixing holes 232 are formed in the connecting block 23, a fixing piece 233 used for fixing the connecting block 23 to the PCB board 1 is inserted into the fixing holes 232, the fixing piece 233 is welded to the PCB board 1, the connecting block 23 can be fixed to the PCB board 1, and accordingly the base 2 is mounted.

As a further improvement of this embodiment, as shown in fig. 1 to fig. 3, in this embodiment, a light guide structure 7 is disposed on the key cap 5, and a light emitting element 8 is disposed on the PCB 1 and below the light guide structure 7, in this embodiment, the light emitting element 8 is an LED lamp or an RGB lamp, and both the LED lamp and the RGB lamp can be inserted through a solder pin and soldered on the PCB. The light emitted from the light emitting element 8 of this embodiment is guided to the outside by the light guide structure 7.

Specifically, as shown in fig. 7, the light guide structure 7 includes a light guide ring 71 disposed at the outer edge of the lower end of the keycap 5, and a light guide strip 72 integrally formed on the light guide ring 71, embedded into one side of the keycap 5, and extending to the upper end surface of the keycap 5; the light-emitting element 8 is arranged below the light guide ring 71; a clamping position 53 extending to the upper end surface of the keycap 5 and allowing the light guide strip 72 to be clamped is arranged on one side edge of the keycap 5.

For the specific installation manner of the light guide structure 7 and the key cap 5, in this embodiment, a plurality of upper clamping columns 711 are convexly arranged on the light guide ring 71, and a plurality of lower clamping grooves 54 for the upper clamping columns 711 to be clamped are arranged on the edge of the lower end surface of the key cap 5; a plurality of side clamping columns 721 clamped into the keycap 5 are convexly arranged on the side edge of the upper part of the light guide strip 72. The upper clamping column 711 of the light guide ring 71 is clamped into the lower clamping groove 54 of the lower end face of the keycap 5, and then the light guide ring 71 is installed and fixed on the lower end face of the keycap 5; meanwhile, the light guide strip 72 is clamped in the clamping position 53 of the keycap 5.

Through set up light guide structure 7 on terminal surface and side under key cap 5 for 5 lower part outward flanges of key cap, a side and upper portion all can send light, and whole leaded light is effectual.

The assembly steps of the rotary regulating switch provided by the embodiment are as follows:

firstly, the light guide structure 7 is arranged on the key cap 5, and then the key cap 5 is arranged on the base 2, so that the rotating pressing shaft 51 at the lower end of the key cap 5 is inserted into the jack 22 of the base 2; then, the limiting gasket 6 is sleeved on the rotating pressing shaft 51 of the key cap 5 from the lower part of the base 2, so that the rotating pressing shaft 51 of the key cap 5 is limited in the jack 22 and the accommodating cavity 21 of the base 2; then, an encoder or a potentiometer is arranged from the lower part of the base 2, and a rotating pressing shaft 51 at the lower end of the key cap 5 is inserted into a rotating hole 41 in the middle of the encoder or the potentiometer; then, the assembled integral structure is arranged on the PCB 1 welded with the tact switch, so that the rotating hole 41 is just positioned right above the tact switch; finally, the fixing pieces 233 on the base 2 are soldered to the PCB board 1 to fix the base 1 and the structure mounted on the base 1. In addition, a light emitting element 8(LED lamp or RGB lamp) is further mounted on the PCB 1 below the light guide structure 7, and light emitted from the light emitting element 8 is transmitted to the upper side of the key cap 5 through the light guide structure 7.

The working principle of the rotary regulating switch of the embodiment is as follows: when the key cap 5 is rotated, the rotating pressing shaft 51 at the lower end of the key cap 5 drives the encoder or the potentiometer to rotate, so that the functions of volume of the connected equipment or brightness of screen light and the like can be adjusted. After the adjustment is completed, when the key cap 5 is pressed down, the rotating pressing shaft 51 at the lower end of the key cap 5 presses the tact switch to conduct the tact switch, so that the function of confirmation is achieved.

The specific structure and the working principle of the encoder of the embodiment are the same as those of the conventional encoder. Specifically, the encoder has A, B, C three terminals soldered on the PCB, A, B terminals are connected to two input ports of the MCU respectively, and a volume counter is disposed in the MCU. For example, when the key cap 5 is rotated clockwise, the rotating pressing shaft 51 at the lower end of the key cap 5 drives the encoder to rotate clockwise, the phase of the output signal from the a terminal is advanced, and when the key cap 5 is rotated counterclockwise, the rotating pressing shaft 51 at the lower end of the key cap 5 drives the encoder to rotate counterclockwise, the phase of the output signal from the B terminal is advanced. Therefore, the MCU can judge whether the device rotates clockwise or anticlockwise so as to judge whether the value of the volume counter is increased or decreased, and finally the count value is sent to the corresponding electronic volume control chip to realize volume adjustment control of the corresponding device.

Accordingly, the potentiometer of the present embodiment has the same specific structure and operation principle as the conventional potentiometer. Specifically, a potentiometer is a resistance element having three terminals and a resistance value adjustable according to a certain variation rule, and is generally composed of a resistor body and a movable brush, and when the brush moves along the resistor body, a resistance value or a voltage having a certain relationship with a displacement amount is obtained at an output terminal. In this embodiment, the cap 5 is rotated to make the pressing shaft 51 rotate to drive the potentiometer, i.e. to drive the brush inside the potentiometer to move on the resistor, thereby changing the resistance (current value) of the output terminal. Therefore, by changing the resistance value, the volume of the connected device or the brightness of the display screen light can be adjusted.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that other structures obtained by adopting the same or similar technical features as the above embodiments of the present invention are all within the protection scope of the present invention.

Claims

1. A rotary regulating switch is characterized by comprising a PCB, a base arranged on the PCB, a switch module arranged on the PCB and positioned in the base, an adjustable element arranged above the switch module and positioned in the base, and a key cap arranged above the base, wherein the adjustable element is electrically connected to the PCB, a rotating hole positioned above the switch module is formed in the adjustable element, and the lower end of the key cap is provided with a rotating pressing shaft which is movably inserted into the base and the rotating hole from top to bottom and can rotate the adjustable element and the press switch module.

2. The rotary type adjustment switch of claim 1, wherein the adjustable element is an encoder or a potentiometer.

3. The rotary regulating switch according to claim 1, wherein the lower part of the rotary pressing shaft is a prism, and the rotary hole is a prism hole matching with the prism.

4. The rotary type adjustment switch of claim 1, wherein the base has a receiving cavity for receiving the adjustable component and the switch module therein, and a plug hole communicating with the receiving cavity and allowing the rotary pressing shaft to be inserted therein is formed downward on the upper end surface of the base; the key cap cover is arranged on the base, the lower end face of the key cap is provided with a yielding groove for embedding the upper part of the base, and the rotating pressing shaft extends downwards from the yielding groove and is inserted into the jack.

5. The rotary type adjustment switch of claim 4, wherein a limiting pad is sleeved on the outer periphery of the rotary pressing shaft and inside the base, and the width of the limiting pad is greater than the width of the insertion hole.

6. The rotary type adjustment switch according to claim 1, wherein a connection block is provided at an outer edge of a lower portion of the base, a positioning post is protruded from a lower end surface of the connection block, and a positioning hole for inserting the positioning post is formed on the PCB; a plurality of fixing holes are formed in the connecting block, and a fixing piece for fixing the connecting block on the PCB is inserted into each fixing hole.

7. The rotary type adjustment switch according to claim 1, wherein the switch module is a tact switch.

8. The rotary adjustment switch of claim 1, wherein the base is a plastic housing.

9. The rotary regulating switch according to any one of claims 1 to 8, wherein a light guide structure is disposed on the key cap, and a light emitting element is disposed on the PCB and under the light guide structure.

10. The rotary regulating switch according to claim 9, wherein the light guide structure comprises a light guide ring disposed at the outer edge of the lower end of the key cap, and a light guide bar integrally formed on the light guide ring and embedded into one side of the key cap and extending to the upper end surface of the key cap; the light-emitting element is arranged below the light guide ring; a clamping position which extends to the upper end face of the keycap and is used for clamping the light guide strip is arranged on one side edge of the keycap.

11. The rotary regulating switch according to claim 10, wherein a plurality of upper clipping columns are convexly arranged on the light guide ring, and a plurality of lower clipping grooves for clipping the upper clipping columns are arranged on the edge of the lower end face of the keycap; the side edge of the upper part of the light guide strip is convexly provided with a plurality of side clamping columns clamped into the keycap.

12. The rotary regulating switch according to claim 9, wherein said light emitting element is an LED lamp or an RGB lamp.