阅读说明：本技术 一种旋转调节装置、无级调节旋钮及其无级调节方法 (Rotary adjusting device, stepless adjusting knob and stepless adjusting method thereof ) 是由 陈华健 于 2021-06-22 设计创作，主要内容包括：本发明公开了一种旋转调节装置、无级调节旋钮及其无级调节方法,一种旋转调节装置,包括电路板和设于电路板上的位置检测开关,电路板上旋转定位有拨码盘,拨码盘设有开关拨块,开关拨块触发位置检测开关。一种无级调节旋钮,包括外壳和底盖,外壳内封装有上述技术方案中的旋转调节装置,外壳上穿设有操作手柄用于旋转带动拨码盘,电路板设于底盖上。本发明公开一种无级调节方法,旋转拨码盘带动开关拨块触发位置检测开关,通过MCU芯片接收并根据位置检测开关的位置检测信息对应地输出工作指令。本发明通过拨码盘触发位置检测开关的方式代替传统模式,拨码盘旋转控制方式直观,具有使用寿命长,调节精度高的优点。(The invention discloses a rotary adjusting device, a stepless adjusting knob and a stepless adjusting method thereof. The utility model provides a stepless regulation knob, includes shell and bottom, and the rotary regulating device among the above-mentioned technical scheme is equipped with in the encapsulation in the shell, wears to be equipped with operating handle on the shell and is used for the rotatory dial that drives, and the circuit board is located on the bottom. The invention discloses a stepless regulation method.A dial is rotated to drive a switch dial block to trigger a position detection switch, and a working instruction is received by an MCU chip and correspondingly output according to position detection information of the position detection switch. The invention replaces the traditional mode by the mode that the dial triggers the position detection switch, has intuitive dial rotation control mode and has the advantages of long service life and high adjustment precision.)

1. A rotary adjustment device characterized by: the circuit board comprises a circuit board (1) and a position detection switch (12) arranged on the circuit board (1), wherein a dial (2) is rotationally positioned on the circuit board (1), a switch dial block (21) is arranged on the dial (2), and the position detection switch (12) is triggered by the switch dial block (21).

2. The rotary adjustment device of claim 1, wherein: the switch shifting block (21) is arranged into a plurality of arc-shaped structures and is coaxially distributed on the dial (2).

3. The rotary adjustment device of claim 2, wherein: when the dial (2) rotates, the switch blocks (21) rotate to trigger the position detection switch (12).

4. The rotation adjustment device according to claim 2 or 3, characterized in that: the position detection switch (12) is provided with a plurality of detection contacts corresponding to the switch shifting blocks (21), and the detection contacts are coaxial with the dial (2) and distributed on the circuit board (1) in different radiuses.

5. The rotary adjustment device of claim 4, wherein: and the circuit board (1) is provided with an MCU chip (11) which is in communication connection with the position detection switch (12).

6. The rotary adjustment device of claim 5, wherein: the circuit board (1) is provided with a position sensor (13), and the dial (2) is rotatably connected with the position sensor (13) through a protruding shaft (22).

7. The rotary adjustment device of claim 6, wherein: a friction pad (23) is arranged between the protruding shaft (22) and the position sensor (13).

8. The rotary adjustment device of claim 1, wherein: and the circuit board (1) is provided with a communication interface (14) which is in communication connection with the MCU chip (11).

9. A stepless adjustment knob comprising a housing (31) and a bottom cover (32), characterized in that: the rotary adjusting device of any one of claims 1 to 8 is enclosed in the housing (31), an operating handle (3) is arranged on the housing (31) in a penetrating way and used for driving the dial (2) in a rotating way, and the circuit board (1) is arranged on the bottom cover (32).

10. The stepless adjustment knob according to claim 9, wherein: a fixed seat (34) is arranged on the shell (31), and the operating handle (33) penetrates through the fixed seat (34) to be connected with the dial (2).

11. The stepless adjustment knob according to claim 10, wherein: and a silica gel ring (35) is arranged between the operating handle (33) and the inner wall of the fixed seat (34).

12. The stepless adjustment knob according to claim 10, wherein: a pin (331) extends from the side wall of the operating handle (33) along the radial direction of the operating handle, a positioning opening (201) is formed in the end portion of the dial (2), and the pin (331) is positioned in the positioning opening (201).

13. The stepless adjustment knob according to claim 10, wherein: a spring (36) is arranged between the dial (2) and the operating handle (33).

14. A stepless regulation method is characterized in that: the rotating dial (2) drives the switch dial block (21) to trigger the position detection switch (12), and the MCU chip (11) receives and correspondingly outputs a working instruction according to the position detection information of the position detection switch (12).

15. The stepless adjustment method of claim 14, characterized in that: the working instructions output by the MCU chip (11) comprise a lower burner working instruction, a self-cleaning function instruction and an upper burner working instruction.

16. The stepless adjustment method of claim 15, characterized in that: the rotation angle of the dial (2) is also detected by a position sensor (13), and the angle information is transmitted to the MCU chip (11).

17. The stepless adjustment method of claim 15, characterized in that: when the MCU chip (11) outputs a lower burner working instruction, the rotation angle of the dial plate (2) is 250 degrees, when the MCU chip (11) outputs a self-cleaning function instruction, the dial plate (2) rotates to 270 degrees, and when the MCU chip (11) outputs an upper burner working instruction, the dial plate (2) rotates rightwards to trigger the detection contact of the position detection switch (12) to be closed.

18. The stepless adjustment method of claim 14, characterized in that: and the MCU chip (11) outputs the lower burner working instruction, the self-cleaning function instruction and the upper burner working instruction through a communication interface (14).

Technical Field

The invention relates to the technical field of stepless adjusting switches, in particular to a rotary adjusting device, a stepless adjusting knob and a stepless adjusting method thereof.

Background

The existing common circuit for stepless temperature regulation or speed regulation generally adopts a potentiometer (rotary or sliding). The purpose of stepless speed regulation and temperature regulation is realized by regulating the continuous change of the resistance value of the potentiometer. The circuit structure of the regulating switch is simple and easy to realize, but has certain disadvantages: the potentiometer is worn due to frequent rotation or sliding, so that the change of resistance values is caused, the nonlinear change and noise interference of the potentiometer are caused, and the adjustment precision is influenced; and the service life of the common potentiometer is limited, and the service life requirement of some high-requirement electric products cannot be met.

In view of the above problems of the conventional circuit of the adjusting switch in the prior art, a technical problem to be solved is urgently needed.

Disclosure of Invention

The invention aims to provide a rotary adjusting device, a stepless adjusting knob and a stepless adjusting method thereof.

In order to solve the above-mentioned purpose, the technical scheme provided by the invention is as follows: a rotary adjusting device comprises a circuit board and a position detection switch arranged on the circuit board, wherein a dial is rotationally positioned on the circuit board, a switch dial block is arranged on the dial, and the switch dial block triggers the position detection switch.

By adopting the technical scheme, the arc-shaped switch shifting block of the rotary dial triggers the position detection switch when rotating, the position detection switch outputs a trigger signal, the rotary position of the dial can be sensed, the rotary triggering modes are various, the abrasion of the traditional adjusting mode is effectively reduced, and the service life of equipment is prolonged.

Furthermore, the switch shifting block is arranged into a plurality of arc-shaped structures and is coaxially distributed on the dial plate.

Further, when the dial is rotated, the plurality of switch blocks are rotated to trigger the position detection switch.

Furthermore, the position detection switch is provided with a plurality of detection contacts corresponding to the switch shifting blocks, and the detection contacts are coaxial with the dial and distributed on the circuit board in different radiuses.

Furthermore, the circuit board is provided with an MCU chip which is in communication connection with the position detection switch. The MCU chip is used for acquiring an output trigger signal of the position detection switch, processing and outputting a control instruction to control the equipment to work.

Furthermore, a position sensor is arranged on the circuit board, and the dial is rotatably connected with the position sensor through a protruding shaft. The dial drives the position sensor to rotate, and the rotating position of the dial is further detected through the position sensor.

Furthermore, a friction pad is arranged between the protruding shaft and the position sensor. The friction pad effectively reduces the abrasion of the convex shaft of the dial plate to the position sensor.

Furthermore, a communication interface in communication connection with the MCU chip is arranged on the circuit board. The communication interface is used for transmitting the output control signal of the MCU chip.

In order to solve the above-mentioned object, another technical solution provided by the present invention is: a stepless adjusting knob comprises a shell and a bottom cover, wherein the rotary adjusting device in any one of the technical schemes is packaged in the shell, an operating handle is arranged on the shell in a penetrating mode and used for driving a dial plate to rotate, and a circuit board is arranged on the bottom cover.

By adopting the technical scheme, when the intelligent electronic clock is used, the dial plate is driven by rotating the operating handle, so that the arc switch dial block triggers the position detection switch to output a corresponding signal to the MCU chip for processing, and the intelligent electronic clock is convenient to use.

Furthermore, a fixed seat is arranged on the shell, and the operating handle penetrates through the fixed seat to be connected with the dial. The fixing seat can be used for limiting the operating handle, and plays a role in supporting the operating handle.

Furthermore, a silica gel ring is arranged between the operating handle and the inner wall of the fixed seat. The silica gel circle is used for alleviateing the wearing and tearing between handle and fixing base.

Furthermore, a pin extends from the side wall of the operating handle along the radial direction of the operating handle, a positioning opening is formed in the end part of the dial, and the pin is positioned in the positioning opening. When the pin rotates along with the operating handle, the touch positioning opening drives the dial to rotate.

Further, a spring is arranged between the dial and the operating handle. The spring can be used to reset the position of operating handle for the pin leaves the location mouth when operating handle is jack-up, and when pressing operating handle, the pin is positioned in the location mouth.

The invention also provides a stepless regulation method, wherein the rotary dial plate drives the switch dial block to trigger the position detection switch, and the MCU chip receives and correspondingly outputs a working instruction according to the position detection information of the position detection switch.

Further, the work instruction output by the MCU chip comprises a lower burner work instruction, a self-cleaning function instruction and an upper burner work instruction.

Furthermore, the rotation angle of the dial is detected through a position sensor, and the angle information is transmitted to the MCU chip.

Further, when the MCU chip outputs a lower burner working instruction, the rotation angle of the dial is 250 degrees, when the MCU chip outputs a self-cleaning function instruction, the dial rotates to 270 degrees, and when the MCU chip outputs an upper burner working instruction, the dial rotates rightwards to trigger the detection contact of the position detection switch to be closed.

Further, the MCU chip outputs the lower burner working instruction, the self-cleaning function instruction and the upper burner working instruction through a communication interface.

The beneficial effects obtained by the invention are as follows: the temperature or speed is adjusted and controlled by adopting a rotary toggle switch mode, the adjusting precision is high, the abrasion to devices is reduced, and the service life of a product is prolonged; the rotation trigger position of the dial is detected through the MCU chip, the control signal is transmitted through the communication interface, the action of a lower computer is controlled, stepless temperature regulation and speed regulation can be realized, in the process of controlling the temperature or the speed of the rotating dial of the operating handle, the control operation of sensing the dial is realized through the position detection switch, and the rotating positions of the dial and the operating handle are detected in real time through the position sensor, so that the temperature regulation and speed regulation operation is more visual, reliable and flexible.

Drawings

FIG. 1 is a schematic cross-sectional view of a rotary adjustment device according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a dial of a rotary adjustment device according to an embodiment of the invention;

FIG. 3 is a structural schematic view of another angle of the dial of FIG. 2;

FIG. 4 is a schematic diagram of a circuit board mounting structure of a rotation adjustment device according to an embodiment of the present invention;

FIG. 5 is a schematic perspective view of the position detecting switch shown in FIG. 4;

FIG. 6 is a schematic perspective view of a stepless adjusting knob according to an embodiment of the present invention;

FIG. 7 is an exploded view of a stepless adjustment knob according to an embodiment of the present invention;

FIG. 8 is a schematic cross-sectional view of a stepless adjusting knob according to an embodiment of the present invention;

FIG. 9 is a diagram of an assembly structure of an application specific stepless adjusting knob according to an embodiment of the present invention;

fig. 10 is a schematic diagram of the operation principle of a stepless adjustment method according to an embodiment of the present invention.

Description of reference numerals: the circuit board comprises a circuit board 1, a MCU chip 11, a position detection switch 12, a position sensor 13, a communication interface 14, a PB 1-first detection contact, a PB 2-second detection contact, a PB 3-third detection contact, a dial 2, an arc switch shifting block 21, a protruding shaft 22, a friction pad 23, a positioning opening 201, a first arc section 211, a second arc section 212, a third arc section 213, a shell 31, a bottom cover 32, an operating handle 33, a fixing seat 34, a silica gel ring 35, a spring 36 and a pin 331.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

Referring to fig. 1 to 5, the invention discloses a rotation adjusting device, which comprises a circuit board 1 and a position detection switch 12 arranged on the circuit board 1, wherein a dial 2 is rotatably positioned on the circuit board 1, the dial 2 is provided with a switch dial 21, and the switch dial 21 triggers the position detection switch 12.

The mode of the switch block 21 of the present invention for triggering the position detection switch 12 may be a mode of a photoelectric sensor or a sensor during rotation, or may be a mode of triggering by mechanically contacting a contact of the position detection switch 12. The position detection switch 12 may be a mechanical switch or an electronic switch, and the electronic switch may be a hall switch or a photosensor.

The switch shifting block 21 is provided with a plurality of arc-shaped structures and is coaxially distributed on the dial 2.

When the dial 2 rotates, the plurality of switch blocks 21 rotate to activate the position detection switch 12.

The position detection switch 12 has a plurality of detection contacts corresponding to the plurality of switch blocks 21, and the plurality of detection contacts are coaxial with the dial 2 and distributed on the circuit board 1 at different radii. The arc-shaped structural parts of the switch shifting block 12 on the dial 2 can be distributed in the same radial direction or in different radial directions.

In the present embodiment, the position detection switch 12 is provided with a first detection contact PB1, a second detection contact PB2, and a third detection contact PB3, and the plurality of arc switch blocks 21 are provided as a first arc segment 211, a second arc segment 212, and a third arc segment 213 that are in one-to-one correspondence with the first detection contact PB1, the second detection contact PB2, and the third detection contact PB 3. When the dial 2 rotates, the first arc-shaped section 211, the second arc-shaped section 212, and the third arc-shaped section 213 rotate along with the dial 2, wherein the first arc-shaped section 211, the second arc-shaped section 212, and the third arc-shaped section 213 are coaxially distributed on the dial 2. The first arc-shaped segment 211 contacts and activates the first test contact PB1, the second arc-shaped segment 212 contacts and activates the second test contact PB2, and the third arc-shaped segment 213 contacts and activates the third test contact PB 3.

The "plurality of arc switch blocks" according to the embodiment of the present invention includes, but is not limited to, three arc segments 211, 212, 213 corresponding to the detection contacts PB1, PB2, and PB3 of the position detection switch 12.

The detection contact of the position detection switch 12 may be a convex structure protruding on the surface of the position detection switch 12, or may be a concave structure recessed on the surface of the position detection switch 12.

The first arc-shaped section 211, the second arc-shaped section 212 and the third arc-shaped section 213 which are coaxial can be distributed on the dial 2 in the same radial direction or in different radial positions; the first detection contact PB1, the second detection contact PB2, and the third detection contact PB3 are arranged coaxially with the dial 2, and may be distributed on the circuit board 1 at the same radial position or different radial positions.

The circuit board 1 is provided with an MCU chip 11 which is in communication connection with the position detection switch 12.

The circuit board 1 is provided with a position sensor 13, and the dial 2 is rotatably connected with the position sensor 13 through a convex shaft 22. The position sensor 13 employs a high-precision angle sensor for detecting the angular position of the operating handle 33. Wherein the circuit board 1 can also use a potentiometer to detect the angular position of the operating handle 33.

A friction pad 23 is provided between the protruding shaft 22 and the position sensor 13. The circuit board 1 is provided with a communication interface 14 which is in communication connection with the MCU chip 11.

Referring to fig. 1 to 8, the present invention discloses a stepless adjusting knob, which includes a housing 31 and a bottom cover 32, wherein the rotation adjusting device according to the above embodiment is enclosed in the housing 31, an operating handle 33 is disposed on the housing 31 for rotating the dial 2, and the circuit board 1 is disposed on the bottom cover 32.

The shell 31 is provided with a fixed seat 34, and the operating handle 33 passes through the fixed seat 34 to be connected with the dial 2. A silica gel ring 35 is arranged between the operating handle 33 and the inner wall of the fixed seat 34. The side wall of the operating handle 33 has a pin 331 extending in the radial direction thereof, and the end of the dial 2 is provided with a positioning hole 201, and the pin 331 is positioned in the positioning hole 201. A spring 36 is provided between the dial 2 and the operating handle 33.

Referring to fig. 9, the stepless adjusting knob according to the present invention is connected to a lower computer through a data communication line, and the lower computer controls the operation of the gas appliance.

When the stepless adjustment knob-controlled gas appliance is in the off state, the first detection contact PB1, the second detection contact PB2, and the third detection contact PB3 of the position detection switch 12 are in the off state.

As shown in fig. 10, the present invention discloses a stepless adjustment method, wherein a rotary dial 2 drives a switch dial 21 to trigger a position detection switch 12, and a MCU chip 11 receives and correspondingly outputs a working instruction according to position detection information of the position detection switch 12.

The work instructions output by the MCU chip 11 include a lower burner work instruction, a self-cleaning function instruction and an upper burner work instruction.

The stepless adjustment method also detects the rotation angle of the dial 2 through the position sensor 13 and transmits the angle information to the MCU chip 11.

When the MCU chip 11 outputs a lower burner working instruction, the rotation angle of the dial 2 is 250 degrees, when the MCU chip 11 outputs a self-cleaning function instruction, the dial 2 rotates to 270 degrees, and when the MCU chip 11 outputs an upper burner working instruction, the dial 2 rotates rightwards to trigger the detection contact of the position detection switch 12 to be closed.

The MCU chip 11 outputs the lower burner working instruction, the self-cleaning function instruction and the upper burner working instruction through the communication interface 14.

In the specific implementation of the method, the operating handle 33 which is arranged at the original closed position is rotated leftwards by 20-245 degrees by connecting the operating handle 33 with the dial 2, so that the first detection contact PB1 of the position detection switch 12 is closed;

when the operating handle 33 rotates to 250 ° to the left, the MCU chip 11 reads the state of the first detection contact PB1 of the position detection switch 12 and the angle signal ADC value of the position sensor 13; (ADC, acronym of Analog-to-Digital Converter, refers to an Analog-to-Digital Converter or Analog-to-Digital Converter, refers to a device that converts an Analog signal of a continuous variable into a discrete Digital signal.)

The MCU chip 11 calculates the ADC value and converts the ADC value into a temperature value, and sends a lower combustor working instruction and formulates the combustor working temperature through the communication interface 14;

the operating handle 33 continues to rotate to 270 degrees until the first detection contact PB1, the second detection contact PB2 and the third detection contact PB3 of the position detection switch 12 are closed, and the MCU chip 11 sends a self-cleaning function command;

the operating handle 33 placed at the original closed position is rotated rightward, so that the third detection contact PB3 and the first detection contact PB1 of the position detection switch 12 are closed, the MCU chip 11 sends out an upper burner operating instruction through the communication interface 14, and sets the operating temperature of the burner.

When the operating handle 33 rotates to different angles, different combinations of the detection contacts PB1, PB2, PB3 of the position detection switch 12 are triggered, and the position sensor 13 realizes simultaneous operation of position measurement and operation mode.

In summary, the actual samples of the present invention are prepared according to the description and the drawings, and after a plurality of usage tests, the effect of the usage tests proves that the present invention can achieve the expected purpose, and the practical value is undoubted. The above-mentioned embodiments are only for convenience of illustration and not intended to limit the invention in any way, and those skilled in the art will be able to make equivalents of the features of the invention without departing from the technical scope of the invention.