CN111258369B - Knob and control method thereof - Google Patents
Knob and control method thereof Download PDFInfo
- Publication number
- CN111258369B CN111258369B CN201811450638.XA CN201811450638A CN111258369B CN 111258369 B CN111258369 B CN 111258369B CN 201811450638 A CN201811450638 A CN 201811450638A CN 111258369 B CN111258369 B CN 111258369B
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- knob
- rotation angle
- unit rotation
- angle adjustment
- circuit board
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
- G05G1/10—Details, e.g. of discs, knobs, wheels or handles
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The invention relates to a knob, which comprises a rotating body, wherein the rotating body comprises a column body inserted into a panel mounting hole, a rotary cover connected to the top of the column body and a sealing gasket arranged between the lower end surface of the rotary cover and a panel, an elastic piece is sleeved outside the column body, the first end of the elastic piece is pressed on the lower end surface of the panel, and the second end of the elastic piece is pressed on the column body so that the rotating body has the tendency of moving downwards. The knob realizes the end surface sealing of the rotary cover, and the sealing effect is better. The problem of seal failure does not occur even in the case where the seal end face is worn. The invention also relates to a control method of the knob, which comprises the steps of detecting and acquiring the pressure V applied to the knob through a pressure sensor; comparing V with a pressure threshold value range Vi corresponding to each unit rotation angle regulating quantity Mi, wherein i is a natural number; and if V falls into the range Vi, determining the unit rotation angle adjustment quantity of the knob to be Mi, so that the adjustability of the knob is strong.
Description
Technical Field
The invention relates to a knob and a control method of the knob.
Background
The knob is used in a variety of electrical appliances, and when the knob is mounted on a panel, a sealing ring is usually arranged between the knob and the panel in order to ensure the sealing property of the mounting on the panel. For example, in the chinese utility model patent "induction cooker and knob device" with the publication number CN202813494U (application number 201220382148.2), a sealing ring is provided between the knob and the panel, so as to prevent the external water from entering the electric appliance through the knob, further prevent the internal electronic components from being corroded or burned by the water, and further improve the safety performance and the service life of the electric appliance. But the radial seal between the knob and the panel is mainly realized in the structure, and in the long-term use process, along with the continuous use of the knob, the sealing ring is abraded, so that the sealing property between the knob and the panel is reduced. In addition, the control function of the knob is single, when the knob is used for gear adjustment, particularly when the gear is adjusted to be large, the large gear can be adjusted only by rotating a large angle, the unit adjustment variable of the knob is fixed, and the adjustability is low.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a knob with better sealing performance and without the influence of abrasion in view of the above prior art.
A second technical problem to be solved by the present invention is to provide a knob capable of adjusting a unit adjustment amount in view of the above prior art.
A third technical problem to be solved by the present invention is to provide a control method for a knob, which can achieve flexible adjustment and fast adjustment, in view of the above prior art.
The technical scheme adopted by the invention for solving the first technical problem is as follows: the utility model provides a knob, includes the rotator, the rotator is including inserting the cylinder of establishing in the panel mounting hole and connecting the spiral cover at the cylinder top, its characterized in that: still including setting up sealed the pad under the spiral cover between terminal surface and the panel, the cylinder overcoat is equipped with the elastic component, the first end of elastic component is pressed on the lower terminal surface of panel, the elastic component second end press on the cylinder and make the rotator have the trend of downward movement.
The technical scheme adopted by the invention for solving the second technical problem is as follows: the pressure sensor is embedded in the sealing gasket and is electrically connected with the circuit board.
In order to conveniently acquire the rotation angle of the knob and further realize the control of the adjustment amount of the knob, an encoder is arranged in the rotating body and is electrically connected with the circuit board.
In order to facilitate installation of the supporting piece, the lower end of the column body is sleeved with the supporting piece in an sleeved mode, the upper surface of the supporting piece is provided with a limiting groove, and the second end of the elastic piece abuts against the limiting groove.
In order to conveniently adjust the elastic force of the elastic part, the supporting part can be connected to the column body in an axially movable mode along the column body.
In order to realize the synchronous rotation of the elastic element and the rotating body, a gasket capable of rotating synchronously along with the cylinder is further sleeved outside the cylinder, and the first end of the elastic element abuts against the gasket and presses the gasket on the lower surface of the panel.
Preferably, the outer surface of the column body and the inner surface of the gasket are provided with limiting assemblies for realizing circumferential positioning.
In order to enable the friction surface of the sealing gasket to be located on the upper end face and further effectively guarantee effective sealing between the cylinder and the panel, a positioning piece is convexly arranged near the panel mounting hole, and a positioning groove capable of being clamped by the limiting piece is formed in the sealing gasket.
In order to conveniently realize the switch operation of the knob, a capacitor key is arranged at the center of the spiral cover and is electrically connected with the circuit board.
Simply, be equipped with the decurrent deep trouth of opening along the axial in the post, be connected with on the circuit board and stretch into the support column to the deep trouth, the support column overcoat is equipped with the spring of being connected with electric capacity button, circuit board electricity respectively.
Beautifully, be equipped with the downward deep groove of opening along the axial in the post, be provided with the lamp pole of being connected with the circuit board electricity in the deep groove.
In order to conveniently display the unit rotation angle adjustment quantity of the knob in real time, the display device further comprises a display screen electrically connected with the circuit board.
The technical scheme adopted by the invention for solving the third technical problem is as follows: a control method of a knob is characterized in that: detecting and acquiring pressure V applied to the knob through a pressure sensor;
comparing V with a pressure threshold value range Vi corresponding to each unit rotation angle regulating quantity Mi, wherein i is a natural number;
if V falls within the range Vi, the unit rotation angle adjustment amount of the knob is determined to be Mi.
Preferably, after determining that the unit rotation angle adjustment amount of the knob is Mi, a rotation signal of the knob is detected, and if the knob is not rotated within the preset time T1, the unit rotation angle adjustment amount of the knob is cleared to be Mi, and if the knob is rotated within the preset time T1, the control is implemented according to the unit rotation angle adjustment amount of Mi.
Preferably, during the rotation of the knob, if the time T for stopping the knob by the knob exceeds the preset time T0, if so, the unit rotation angle adjustment amount of the knob is adjusted to be a selected value M0.
Preferably, when the pressure V applied to the acquisition knob during the pressure sensor continuous time T2 falls within the range Vi in determining the unit rotation angle adjustment amount of the knob, the unit rotation angle adjustment amount of the knob is determined to be Mi.
Conveniently, when the pressure sensor detects and acquires the pressure V applied to the knob in real time, the unit rotation angle adjustment quantity Mi corresponding to the pressure V is displayed in real time.
Compared with the prior art, the invention has the advantages that: the sealing gasket in the knob is arranged between the rotary cover and the panel, so that the end face of the rotary cover is sealed, and the sealing effect is better. In addition, under the effect of elastic component, the rotator remains to have the trend of downward movement throughout for sealed the pad remains the inseparable combination with the panel throughout, even also can effectively guarantee the leakproofness between rotator and the panel under the circumstances that sealed terminal surface appears wearing and tearing, the sealed problem of inefficacy can not appear.
In addition, the pressure sensor is arranged in the sealing gasket and used for adjusting the unit rotation angle adjustment amount of the knob by applying different pressures to the knob, so that flexible adjustment of variables can be realized, and convenience in variable adjustment is improved.
Drawings
Fig. 1 is an exploded perspective view of a knob in an embodiment of the present invention.
FIG. 2 is a cross-sectional view of a knob in an embodiment of the present invention.
FIG. 3 is an exploded view of a panel and a gasket according to an embodiment of the present invention.
Fig. 4 is an exploded view of the rotator and the washer according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 to 4, the knob in this embodiment includes a rotating body 1, a sealing pad 3, an elastic member 4, a supporting member 7, a gasket 8, and a circuit board 5.
The rotary body 1 includes a column 11 inserted into the mounting hole of the panel 2 and a cap 12 connected to the top of the column 11, and the cap 12 in this embodiment includes a base plate and a side plate extending downward from the outer edge of the base plate. The panel 2 is provided with a groove corresponding to the side plate, and the lower end of the side plate can go deep into the groove, so that the waterproof effect can be further realized. While providing space for the axial movement of the rotary body 1.
The sealing gasket 3 is arranged in a space formed by the base plate, the side edge plate, the outer wall of the column body 11 and the panel 2. Namely, the sealing gasket 3 forms end face sealing between the screw cap 12 and the panel 2, and realizes sealing of a gap between the column body 11 and the panel 2. In order to avoid the rotation of the gasket 3 during the rotation of the rotating body 1, a positioning element 21 is protruded near the mounting hole of the panel 2, and a positioning groove 31 into which the limiting element can be inserted is formed in the gasket 3. In doing so, only the wear between the upper surface of the gasket 3 and the lower surface of the screw cap 12 mainly occurs.
The supporting member 7 is sleeved at the lower end of the column body 11, and the supporting member 7 can be adjusted and moved relative to the axial direction of the column body 11, the supporting member 7 in the embodiment adopts an adjusting nut, and the supporting member 7 is connected to the column body 11 in a threaded connection mode. The upper surface of the support 7 has a stopper groove 71.
The cylinder 11 is also sleeved with a gasket 8 which can synchronously rotate along with the cylinder 11, and the outer surface of the cylinder 11 and the inner surface of the gasket 8 are provided with limiting components for realizing circumferential positioning. The stop assembly in this embodiment comprises lugs 112 spaced circumferentially of the post 11 and recesses 81 provided on the inner surface of the washer 8 in correspondence with each lug 112. In this way, the protrusion 112 and the groove 81 are coupled to each other, so that the column 11 and the washer 8 are circumferentially retained, i.e. the washer 8 rotates along with the rotation of the rotating body 1. The gasket 8 in this embodiment is of inverted L-shape, i.e. the gasket 8 comprises a transverse portion and a longitudinal portion, the longitudinal portion then abutting against the outer wall of the column 11.
The elastic member 4 in this embodiment is a spring, which is sleeved outside the column 11, and two ends of the elastic member 4 respectively abut against the limiting groove 71 of the supporting member 7 and the lower surface of the transverse portion of the gasket 8, so that the upper surface of the transverse portion of the gasket 8 is close to the lower surface of the panel 2. The elastic member 4 can be rotated synchronously with the rotation of the rotating body 1. Avoid taking place friction between elastic component 4 and the panel 2, avoided the revolving force to elastic component 4's influence, guaranteed elastic component 4's life. While the spring 4 also keeps the tendency to move downwards at all times. Therefore, the tight fit among the sealing gasket 3, the panel 2 and the screw cap 12 can be ensured, and the problem of sealing failure can not occur even under the condition that the sealing gasket 3 is abraded.
In addition, by adjusting the position of the supporting member 7 on the cylinder 11, the elastic force of the elastic member 4 can be adjusted, thereby facilitating adjustment of the sealing strength and the damping strength of the knob.
A pressure sensor 6 is embedded in the sealing gasket 3, and the pressure sensor 6 is electrically connected with the circuit board 5. The pressure sensor 6 in this embodiment employs a force sensitive resistor, and the circuit board 5 is disposed below the rotating body 1. The built-in encoder that has in the rotator 1, the encoder is connected with circuit board 5 electricity, and then circuit board 5 conveniently acquires the turned angle signal of rotator 1.
In addition, a capacitor key is arranged at the center of the screw cap 12 and is electrically connected with the circuit board 5. In this embodiment, the cylinder 11 is provided with the deep groove 111 with a downward opening along the axial direction, the circuit board 5 is connected with the support column 9 capable of extending into the deep groove 111, the support column 9 can be a solid column or a lamp column, if the lamp column is adopted, the lamp column can be electrically connected with the circuit board 5, the knob is lightened during operation, the attractive effect is increased, and meanwhile, light with different colors can be displayed according to the setting. The supporting column 9 is sleeved with a spring 10 which is respectively and electrically connected with the capacitor key and the circuit board 5, and the spring 10 can transmit a capacitance change signal caused by the operation of a user on the capacitor key to the circuit board 5, so that the start-up and shutdown work of the knob is realized.
In addition, a display screen electrically connected with the circuit board 5 can be arranged on the rotary cover 12 of the knob, and the working information of the knob can be displayed through the display screen.
The control method of the knob comprises the following steps:
s1, standby of the knob;
s2, detecting and acquiring the pressure V applied to the knob through the pressure sensor 6; meanwhile, when the pressure sensor 6 detects and acquires the pressure V applied to the knob in real time, the unit rotation angle adjustment quantity Mi corresponding to the pressure V can be displayed in real time according to the unit rotation angle adjustment quantity;
s3, comparing V with a pressure threshold value range Vi corresponding to each unit rotation angle adjustment quantity Mi, wherein i is a natural number; if three unit rotation angle adjusting amounts M1, M2 and M3 can be provided, taking temperature adjustment as an example, M1 is 1 ℃, M2 is 3 ℃, M3 is 5 ℃, namely, the corresponding temperature adjusting amounts are 1 ℃, 3 ℃ and 5 ℃ every time the knob rotates 1 ℃; in the present embodiment, the larger the adjustment amount per unit rotation angle is, the larger the pressing force that needs to be applied to the knob is;
s3, if V falls into the range of Vi, determining whether the continuous time Tf during which V falls into the range of Vi reaches T2, where T2 is 1S in this embodiment; if so, determining the unit rotation angle adjustment quantity of the knob to be Mi; if not, returning to S2;
s4, detecting a rotation signal of the knob, if the knob is not rotated within the preset time T1, clearing the unit rotation angle adjustment amount of the current knob, and returning to S1; in this example, T1 is 1 s;
if the knob is rotated within the preset time T1, the control is realized according to the current corresponding unit rotation angle adjustment amount.
S5, if the time T for stopping the knob exceeds the preset time T0 during the rotation of the knob, T0 is 0.5S in this embodiment; if not, the control is realized according to the current unit rotation angle regulating quantity Mi; if yes, the unit rotation angle adjustment amount of the adjusting knob is a selected value M0, in this embodiment M0 is the minimum unit rotation angle adjustment amount; and proceeds to S4.
Claims (16)
1. A knob, includes rotator (1), rotator (1) is including inserting cylinder (11) of establishing in panel (2) mounting hole and connecting spiral cover (12) at cylinder (11) top, its characterized in that: the rotary cover is characterized by further comprising a sealing gasket (3) arranged between the lower end face of the rotary cover (12) and the panel (2), an elastic piece (4) is sleeved outside the cylinder (11), the first end of the elastic piece (4) is pressed on the lower end face of the panel (2), and the second end of the elastic piece (4) is pressed on the cylinder (11) so that the rotary body (1) has a downward moving trend;
the sealing gasket is characterized by further comprising a circuit board (5), wherein a pressure sensor (6) is embedded in the sealing gasket (3), and the pressure sensor (6) is electrically connected with the circuit board (5);
detecting and acquiring pressure V applied to the knob through a pressure sensor (6); comparing V with a pressure threshold value range Vi corresponding to each unit rotation angle regulating quantity Mi, wherein i is a natural number; if V falls within the range Vi, the unit rotation angle adjustment amount of the knob is determined to be Mi.
2. The knob of claim 1, wherein: the rotary body (1) is internally provided with an encoder which is electrically connected with the circuit board (5).
3. The knob according to claim 1 or 2, wherein: the lower extreme overcoat of cylinder (11) is equipped with a support piece (7), the upper surface of support piece (7) has spacing groove (71), the second end of elastic component (4) then supports in spacing groove (71).
4. The knob of claim 3, wherein: the supporting piece (7) can be connected to the column body (11) in a manner of moving along the axial direction of the column body (11).
5. The knob of claim 3, wherein: the cylinder (11) still overlaps outward and is equipped with packing ring (8) that can follow cylinder (11) synchronous revolution, the first end of elastic component (4) is supported on the packing ring and establish packing ring (8) pressure on the lower surface of panel (2).
6. The knob of claim 5, wherein: and limiting assemblies for realizing circumferential positioning are arranged on the outer surface of the column body (11) and the inner surface of the gasket (8).
7. The knob according to claim 1 or 2, wherein: the panel (2) is provided with a positioning piece (21) in a protruding mode near the mounting hole, and the sealing gasket (3) is provided with a positioning groove (31) into which the positioning piece can be clamped.
8. The knob of claim 1, wherein: the center of the spiral cover (12) is provided with a capacitor key, and the capacitor key is electrically connected with the circuit board (5).
9. The knob of claim 8, wherein: be equipped with opening decurrent deep trouth (111) along the axial in cylinder (11), be connected with on circuit board (5) and stretch into support column (9) in deep trouth (111), support column (9) overcoat is equipped with spring (10) of being connected with respectively with electric capacity button, circuit board (5) electricity respectively.
10. The knob of claim 8, wherein: the lamp post is characterized in that a deep groove (111) with a downward opening is formed in the column body (11) along the axial direction, and a lamp post electrically connected with the circuit board (5) is arranged in the deep groove (111).
11. The knob of claim 1, wherein: the display screen is electrically connected with the circuit board (5).
12. A control method of a knob according to any one of claims 1 to 11, characterized in that: detecting and acquiring pressure V applied to the knob through a pressure sensor (6);
comparing V with a pressure threshold value range Vi corresponding to each unit rotation angle regulating quantity Mi, wherein i is a natural number;
if V falls within the range Vi, the unit rotation angle adjustment amount of the knob is determined to be Mi.
13. The control method of a knob according to claim 12, wherein: and after the unit rotation angle adjustment quantity of the knob is determined to be Mi, detecting a rotation signal of the knob, clearing the unit rotation angle adjustment quantity of the knob to be Mi if the knob is not rotated within the preset time T1, and realizing control according to the unit rotation angle adjustment quantity Mi if the knob is rotated within the preset time T1.
14. The control method of a knob according to claim 13, wherein: during the rotation of the knob, if the time T for stopping the knob by the knob exceeds the preset time T0, if so, the unit rotation angle adjustment amount of the knob is adjusted to be a selected value M0.
15. The control method of a knob according to claim 12, wherein: when the unit rotation angle adjustment quantity of the knob is determined, when the pressure V applied to the pressure sensor (6) detected and acquired within the duration of T2 continuously falls within the range Vi, the unit rotation angle adjustment quantity of the knob is determined to be Mi.
16. The control method of a knob according to claim 12, wherein: when the pressure sensor (6) detects and acquires the pressure V applied to the knob in real time, the unit rotation angle adjustment quantity Mi corresponding to the pressure V is displayed in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811450638.XA CN111258369B (en) | 2018-11-30 | 2018-11-30 | Knob and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811450638.XA CN111258369B (en) | 2018-11-30 | 2018-11-30 | Knob and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111258369A CN111258369A (en) | 2020-06-09 |
| CN111258369B true CN111258369B (en) | 2022-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811450638.XA Active CN111258369B (en) | 2018-11-30 | 2018-11-30 | Knob and control method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN111258369B (en) |
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| DE102011003586A1 (en) * | 2011-02-03 | 2012-08-09 | Robert Bosch Gmbh | Knob-shaped multifunction control element for controlling computer units in motor car, has rotary engagement surfaces provided on different portions on periphery of control element such that surfaces are diametrically opposed to each other |
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| CN208000861U (en) * | 2017-12-29 | 2018-10-23 | 上海天逸电器有限公司 | A kind of semi-automatic twist button switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN200943711Y (en) * | 2006-09-01 | 2007-09-05 | 夏先明 | Air valve of compressed bag for storage |
| CN202838083U (en) * | 2012-08-07 | 2013-03-27 | 海能达通信股份有限公司 | Knob device and interphone |
| CN203706986U (en) * | 2014-03-05 | 2014-07-09 | 重庆梅安森科技股份有限公司 | Multi-gear position knob switch |
| CN204883469U (en) * | 2015-09-10 | 2015-12-16 | 惠州市德赛西威汽车电子股份有限公司 | Show knob |
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| Publication number | Publication date |
|---|---|
| CN111258369A (en) | 2020-06-09 |
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