CN210983130U - Knob structure with forward and reverse recognition function and remote controller - Google Patents
Knob structure with forward and reverse recognition function and remote controller Download PDFInfo
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- CN210983130U CN210983130U CN201921637831.4U CN201921637831U CN210983130U CN 210983130 U CN210983130 U CN 210983130U CN 201921637831 U CN201921637831 U CN 201921637831U CN 210983130 U CN210983130 U CN 210983130U
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Abstract
The utility model discloses a take knob structure and remote controller of positive reverse recognition function is equipped with knob, detection switch, first pulse generating circuit and second pulse generating circuit, and first pulse generating circuit can produce pulse signal when the knob clockwise turning, and second pulse generating circuit can produce pulse signal when the knob anticlockwise turning to as the control signal of telecommunication of knob structure output, consequently, the utility model discloses a knob function that can positive reverse rotation control has with low costs advantage.
Description
Technical Field
The utility model relates to a take knob structure of positive reverse recognition function to and remote controller of applied this knob structure.
Background
In the prior art, a knob used on a remote controller is single in structure, the use cost is high due to the limitation of the structure, a multi-port control is required to identify the rotating position of the knob to realize the rotating speed control, the software processing difficulty is high, and the ports of an MCU are indirectly increased, so that the design cost of electronic hardware is increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses one of the technical problem that will solve is: the knob structure with the forward and reverse recognition function is provided to solve the problem that a knob applied to an existing remote controller is high in cost.
Solve above-mentioned technical problem, the utility model discloses the technical scheme who adopts as follows:
the utility model provides a take knob structure of positive reverse recognition function which characterized in that: the knob structure comprises a knob, a detection switch, a first pulse generating circuit and a second pulse generating circuit, wherein the detection switch is provided with a first fixed terminal, a second fixed terminal and a movable terminal fixedly connected with a shifting lever, the movable terminal is driven to move forward to be in contact with the first fixed terminal when the shifting lever is shifted forward, the movable terminal is driven to move backward to be in contact with the second fixed terminal when the shifting lever is shifted backward, and the movable terminal is reset to a position where the movable terminal is not in contact with both the first fixed terminal and the second fixed terminal when the shifting lever is not shifted;
the edge of the knob is provided with a plurality of trigger lugs arranged at intervals around the rotation axis of the knob so that: when the knob rotates clockwise, the trigger lug of the knob can forward shift the shift lever of the detection switch, and when the knob rotates anticlockwise, the trigger lug of the knob can reverse shift the shift lever of the detection switch;
the movable terminal of the detection switch is electrically connected with a direct current power supply through a current-limiting resistor, the first pulse generation circuit can generate a pulse signal when the first fixed terminal of the detection switch is electrified, and the second pulse generation circuit can generate a pulse signal when the second fixed terminal of the detection switch is electrified.
Thus, the utility model discloses a theory of operation as follows:
when the detection switch does not work, namely the knob is not rotated, the shifting lever is not shifted, the movable terminal is positioned at a position which is not in contact with the first fixed terminal and the second fixed terminal, so that the first fixed terminal and the second fixed terminal of the detection switch are powered off, and the first pulse generating circuit and the second pulse generating circuit do not generate pulse signals;
when the knob is rotated clockwise, the driving lever is shifted forwards, the movable terminal is contacted with the first fixed terminal, so that the first fixed terminal of the detection switch is electrified, the first pulse generation circuit generates a pulse signal, and the electronic equipment provided by the utility model can identify that a user rotates the knob clockwise when detecting that the first pulse generation circuit generates the pulse signal, so that a corresponding control instruction can be executed;
when the knob is by anticlockwise rotation, the driving lever is reversed and is stirred, the movable terminal with the contact of the fixed terminal of second, make detect switch's the circular telegram of the fixed terminal of second, second pulse generation circuit produces pulse signal, and this makes and has used the utility model discloses an electronic equipment when detecting second pulse generation circuit and producing pulse signal, can discern that the user has carried out anticlockwise rotation operation to the knob, can carry out corresponding control command according to this.
Preferably: the first pulse generating circuit is provided with a first parallel circuit consisting of a first resistor and a first capacitor, one end of the first parallel circuit is grounded, and the other end of the first parallel circuit is electrically connected with a first fixed terminal of the detection switch and is used as an output end of the first pulse generating circuit.
Preferably: the second pulse generating circuit is provided with a second parallel circuit consisting of a second resistor and a second capacitor, one end of the second parallel circuit is grounded, and the other end of the second parallel circuit is electrically connected with a second fixed terminal of the detection switch and is used as an output end of the second pulse generating circuit.
Thus, the principle of the first and second pulse generating circuits generating pulse signals is as follows:
when the trigger projection of the knob is used for shifting the shifting lever of the detection switch, the following steps are carried out: when the knob is not rotated or the deflector rod is in a space between two trigger lugs of the rotating knob, the first fixed terminal of the detection switch is powered off, and the output end of the first pulse generation circuit outputs a low level;
when the knob rotates clockwise to a certain trigger lug to positively stir the shifting lever of the detection switch, a first fixed terminal of the detection switch is electrified, the output end of the first pulse generation circuit is changed from a low level to a high level, and the knob continues to rotate clockwise until the trigger lug exceeds the shifting lever of the detection switch, so that when the shifting lever enters a space between the trigger lug and the next trigger lug, a movable terminal of the detection switch is reset, and the output end of the first pulse generation circuit is restored from the high level to the low level.
Similarly, in the counterclockwise rotation process of the knob, when each trigger bump toggles the shift lever of the detection switch, the output end of the second pulse generation circuit can generate a high-level pulse signal.
As a preferred embodiment of the present invention: the knob structure further comprises a pulse setting circuit, the pulse setting circuit is provided with a first diode, a second diode, a third resistor and an inverter, the anode of the first diode is electrically connected with the output end of the first pulse generating circuit, the anode of the second diode is electrically connected with the output end of the second pulse generating circuit, the cathode of the first diode is electrically connected with the cathode of the second diode and then connected to the input end of the inverter, the input end of the inverter is grounded through the third resistor, and the output end of the inverter outputs pulse signals for counting;
and, each of the trigger protrusions is evenly spaced around the rotational axis of the knob.
Therefore, the electronic device of the present invention can identify the rotation direction of the knob through the outputs of the first and second pulse generating circuits, and count the number of the pulse signals output by the phase inverter in unit time to obtain the rotation speed of the knob; the counting of the pulse signals output by the phase inverter is replaced by counting the pulse signals output by the first pulse generating circuit and the second pulse generating circuit, the switching noise possibly introduced by the knob in the rapid rotation can be filtered by the phase inverter, and the accuracy of counting the pulse signals is improved.
Preferably, the inverter is an inverter chip with the model number of 74L VC1G04, a pin A of the inverter chip is an input end of the inverter, a GND pin of the inverter chip is grounded, a VCC pin of the inverter chip is connected with the direct-current power supply, and a pin Y of the inverter chip is an output end of the inverter.
Preferably: the edge of the knob is provided with 18 trigger lugs which are evenly spaced around the axis of rotation of the knob.
As a preferred embodiment of the present invention: the knob structure further comprises a balance switch having the same structure as the detection switch, and the balance switch and the detection switch are symmetrically arranged around the rotation axis of the knob.
Therefore, when the knob rotates clockwise or anticlockwise, the two symmetrically-arranged trigger convex blocks of the knob can simultaneously toggle the shifting lever of the detection switch and the shifting lever of the balance switch so as to improve the rotating hand feeling of the knob.
Preferably, the model of the detection switch is Pannasonic ESE23J101, and the model of the balance switch is A L PS SSCM 110100.
The utility model discloses another of the technical problem that will solve: the remote controller is provided to solve the problem that a knob applied to an existing remote controller is high in cost.
Solve above-mentioned technical problem, the utility model discloses the technical scheme who adopts as follows:
the utility model provides a remote controller, includes face-piece and PCBA board, its characterized in that: the remote controller also comprises a knob structure with a forward and reverse recognition function; the knob passes through the knob mounting hole on the face-piece expose and with but knob mounting hole rotatable cooperation, detection switch, first pulse generation circuit and second pulse generation circuit all set up on the PCBA board.
Compared with the prior art, the utility model discloses following beneficial effect has:
first, the utility model discloses be equipped with knob, detection switch, first pulse generation circuit and second pulse generation circuit, first pulse generation circuit can produce pulse signal when the knob clockwise turning, and second pulse generation circuit can produce pulse signal when the knob anticlockwise turning to as the control signal of telecommunication of knob structure output, consequently, the utility model discloses a knob function that can positive reverse rotation control has with low costs advantage.
Second, the utility model discloses a set up the pulse circuit of setting for the pulse signal of phase inverter output can be used for the count, provides the hardware basis for the rotation rate that records the knob through the unit interval count, and can improve the accuracy to the pulse signal count.
Third, the utility model discloses a set up the balanced switch, can promote the rotatory of knob and feel.
Drawings
The invention will be described in further detail with reference to the following drawings and specific embodiments:
fig. 1 is a schematic structural view of a knob structure of the present invention;
fig. 2 is a schematic cross-sectional structural view of the knob structure of the present invention;
fig. 3 is a schematic circuit diagram of the knob structure of the present invention.
Detailed Description
The present invention will be described in detail with reference to the following embodiments and the accompanying drawings to help those skilled in the art to better understand the concept of the present invention, but the scope of the claims of the present invention is not limited to the following embodiments, and all other embodiments obtained without creative work for those skilled in the art will fall within the scope of the present invention without departing from the scope of the present invention.
Example one
As shown in fig. 1 to 3, the utility model discloses a knob structure with forward and reverse recognition function, including knob K, detection switch SW1, first pulse generation circuit and second pulse generation circuit, wherein, detection switch SW1 has first fixed terminal a, second fixed terminal b and movable terminal c fixedly connected with driving lever d, and when driving lever d is stirred forward, drive movable terminal c forward move to contact with first fixed terminal a, when driving lever d is stirred reversely, drive movable terminal c reverse move to contact with second fixed terminal b, when driving lever d is not stirred, movable terminal c resets to the position of not contacting with first fixed terminal a and second fixed terminal b;
the edge of the knob K is provided with a plurality of trigger projections K1 arranged at intervals around the rotation axis of the knob K, so that: when the knob K rotates clockwise, the triggering projection K1 of the knob K can forward toggle the toggle rod d of the detection switch SW1, and when the knob K rotates anticlockwise, the triggering projection K1 of the knob K can reverse toggle the toggle rod d of the detection switch SW 1;
the movable terminal c of the detection switch SW1 is electrically connected to the dc power supply VDD through a current limiting resistor R9, the first pulse generating circuit is capable of generating a pulse signal when the first fixed terminal a of the detection switch SW1 is energized, and the second pulse generating circuit is capable of generating a pulse signal when the second fixed terminal b of the detection switch SW1 is energized.
Thus, the utility model discloses a theory of operation as follows:
when the rotary knob K does not work, namely the rotary knob K is not rotated, the shifting rod d is not shifted, the movable terminal c is positioned at a position which is not in contact with the first fixed terminal a and the second fixed terminal b, so that the first fixed terminal a and the second fixed terminal b of the detection switch SW1 are powered off, and the first pulse generating circuit and the second pulse generating circuit do not generate pulse signals;
when the knob K is rotated clockwise, the shift lever d is shifted forward, the movable terminal c is in contact with the first fixed terminal a, so that the first fixed terminal a of the detection switch SW1 is electrified, and the first pulse generation circuit generates a pulse signal, which enables the electronic device of the utility model to be applied, when the first pulse generation circuit is detected to generate the pulse signal, the clockwise rotation operation of the knob K by a user can be recognized, and accordingly, a corresponding control instruction can be executed;
knob K is when counter-clockwise turning, driving lever d is stirred by the reverse, movable terminal c with the contact of second fixed terminal b makes the second fixed terminal b of detection switch SW1 circular telegram, second pulse generation circuit produces pulse signal, and this makes and has used the utility model discloses an electronic equipment when detecting second pulse generation circuit and producing pulse signal, can discern that the user has carried out counter-clockwise turning operation to knob K, can carry out corresponding control command according to this.
The above is a basic implementation manner of the first embodiment, and further optimization, improvement and limitation may be performed on the basis of the basic implementation manner:
preferably: the first pulse generating circuit is provided with a first parallel circuit composed of a first resistor R6 and a first capacitor C4, one end of the first parallel circuit is grounded, and the other end is electrically connected to the first fixed terminal a of the detection switch SW1 and serves as an output terminal G2 of the first pulse generating circuit.
Preferably: the second pulse generating circuit is provided with a second parallel circuit consisting of a second resistor R7 and a second capacitor C3, one end of the second parallel circuit is grounded, and the other end of the second parallel circuit is electrically connected with a second fixed terminal b of the detection switch SW1 and is used as an output end G3 of the second pulse generating circuit.
Thus, the principle of the first and second pulse generating circuits generating pulse signals is as follows:
when the trigger bump K1 of the knob K is toggled the toggle lever d of the detection switch SW1, that is: when the knob K is not rotated, or the shift lever d is in a space between two trigger bumps K1 of the rotating knob K, the first fixed terminal a of the detection switch SW1 is powered off, and the output terminal G2 of the first pulse generation circuit outputs a low level;
when the knob K rotates clockwise to a certain trigger bump K1 to move the deflector rod d of the detection switch SW1 forward, the first fixed terminal a of the detection switch SW1 is powered on, the output terminal G2 of the first pulse generation circuit is changed from a low level to a high level, and when the knob K continues to rotate clockwise until the aforesaid trigger bump K1 surpasses the toggle lever d of the detection switch SW1, when the shift lever d enters the space between the previous trigger protrusion K1 and the next trigger protrusion K1, the movable terminal c of the detection switch SW1 is reset and the output terminal G2 of the first pulse generating circuit is returned from a high level to a low level, whereby, during the clockwise rotation of the knob K, when each trigger bump K1 toggles the toggle lever d of the detection switch SW1, the output terminal G2 of the first pulse generating circuit can generate a high-level pulse signal.
Similarly, in the counterclockwise rotation process of the knob K, when each trigger bump K1 toggles the toggle lever d of the detection switch SW1, the output terminal G3 of the second pulse generating circuit can generate a high-level pulse signal.
Example two
On the basis of the first embodiment, the second embodiment further adopts the following preferred structure:
the knob structure further comprises a pulse setting circuit, the pulse setting circuit is provided with a first diode D3, a second diode D4, a third resistor R8 and an inverter U2, the anode of the first diode D3 is electrically connected with the output end G2 of the first pulse generating circuit, the anode of the second diode D4 is electrically connected with the output end G3 of the second pulse generating circuit, the cathode of the first diode D3 and the cathode of the second diode D4 are electrically connected and then connected to the input end of the inverter U2, the input end of the inverter U2 is grounded through the third resistor R8, and the output end E1 of the inverter U2 outputs pulse signals for counting; the third resistor R8 is used to ensure that the input terminal of the inverter U2 is kept low when the switch is not activated.
And, the respective trigger protrusions K1 are arranged at regular intervals around the rotation axis of the knob K.
Therefore, the electronic device of the present invention can identify the rotation direction of the knob K through the outputs of the first pulse generating circuit and the second pulse generating circuit, and count the number of pulse signals output by the phase inverter U2 to calculate the number of pulse signals output by the phase inverter U2 per unit time, thereby obtaining the rotation speed of the knob K; the counting of the pulse signals output by the phase inverter U2 is replaced by the counting of the pulse signals output by the first pulse generating circuit and the second pulse generating circuit, so that the switching noise possibly introduced by the knob K in the rapid rotation can be filtered by the phase inverter U2, and the accuracy of the counting of the pulse signals is improved.
The above is the basic implementation manner of the second embodiment, and further optimization, improvement and limitation can be made on the basis of the basic implementation manner:
preferably, the inverter U2 is an inverter chip with the model number 74L VC1G04, the pin A of the inverter chip is the input end of the inverter U2, the pin GND of the inverter chip is grounded, the pin VCC of the inverter chip is connected with the DC power supply VDD, and the pin Y of the inverter chip is the output end E1 of the inverter U2.
Preferably: the edge of the knob K is provided with 18 trigger lugs K1 which are uniformly arranged around the rotation axis of the knob K at intervals.
EXAMPLE III
On the basis of the first embodiment or the second embodiment, the third embodiment further adopts the following preferable structure:
the knob structure further includes a balance switch SW2 having the same structure as the sensing switch SW1, the balance switch SW2 and the sensing switch SW1 being symmetrically arranged around the rotation axis of the knob K.
Therefore, when the knob K rotates clockwise or counterclockwise, the two symmetrically arranged trigger protrusions K1 of the knob K can simultaneously toggle the toggle lever d of the detection switch SW1 and the toggle lever of the balance switch SW2, so as to improve the rotation hand feeling of the knob K.
The above is the basic implementation of the third embodiment, and further optimization, improvement and limitation can be made on the basis of the basic implementation:
preferably, the detection switch SW1 is of the Pannasonic ESE23J101 type, and the balance switch SW2 is of the A L PS SSCM110100 type, but other types of switches that can also perform the above functions of the detection switch SW1 and the balance switch SW2 can be used.
Example four
The fourth embodiment discloses a remote controller, which comprises a face shell, a PCBA board and a knob structure with a forward and reverse identification function, wherein the knob structure comprises a first knob and a second knob; the knob K is exposed through a knob mounting hole in the face shell and is in rotatable fit with the knob mounting hole, and the detection switch SW1, the balance switch SW2, the pulse setting circuit, the first pulse generating circuit and the second pulse generating circuit are all arranged on the PCBA board.
The present invention is not limited to the above-mentioned embodiments, and according to the above-mentioned contents, according to the common technical knowledge and conventional means in the field, without departing from the basic technical idea of the present invention, the present invention can also make other equivalent modifications, replacements or changes in various forms, all falling within the protection scope of the present invention.
Claims (9)
1. The utility model provides a take knob structure of positive reverse recognition function which characterized in that: the knob structure comprises a knob (K), a detection switch (SW1), a first pulse generating circuit and a second pulse generating circuit, wherein the detection switch (SW1) is provided with a first fixed terminal (a), a second fixed terminal (b) and a movable terminal (c) fixedly connected with a shifting lever (d), when the shifting lever (d) is shifted forwards, the movable terminal (c) is driven to move forwards to be in contact with the first fixed terminal (a), when the shifting lever (d) is shifted reversely, the movable terminal (c) is driven to move reversely to be in contact with the second fixed terminal (b), and when the shifting lever (d) is not shifted, the movable terminal (c) is reset to a position where the movable terminal (c) is not in contact with both the first fixed terminal (a) and the second fixed terminal (b);
the edge of the knob (K) is provided with a plurality of trigger cams (K1) arranged at intervals around the axis of rotation of the knob (K) such that: when the knob (K) rotates clockwise, the triggering convex block (K1) of the knob (K) can forward poke the poking rod (d) of the detection switch (SW1), and when the knob (K) rotates anticlockwise, the triggering convex block (K1) of the knob (K) can reverse poke the poking rod (d) of the detection switch (SW 1);
the movable terminal (c) of the detection switch (SW1) is electrically connected with a direct current power supply (VDD) through a current limiting resistor (R9), the first pulse generation circuit can generate a pulse signal when the first fixed terminal (a) of the detection switch (SW1) is electrified, and the second pulse generation circuit can generate a pulse signal when the second fixed terminal (b) of the detection switch (SW1) is electrified.
2. The knob structure with forward and reverse recognition function according to claim 1, characterized in that: the first pulse generating circuit is provided with a first parallel circuit composed of a first resistor (R6) and a first capacitor (C4), one end of the first parallel circuit is grounded, and the other end of the first parallel circuit is electrically connected with a first fixed terminal (a) of the detection switch (SW1) and is used as an output end (G2) of the first pulse generating circuit.
3. The knob structure with forward and reverse recognition function according to claim 2, characterized in that: the second pulse generating circuit is provided with a second parallel circuit consisting of a second resistor (R7) and a second capacitor (C3), one end of the second parallel circuit is grounded, and the other end of the second parallel circuit is electrically connected with a second fixed terminal (b) of the detection switch (SW1) and is used as an output end (G3) of the second pulse generating circuit.
4. The knob structure with forward and reverse recognition function according to claim 3, characterized in that: the knob structure further comprises a pulse setting circuit, the pulse setting circuit is provided with a first diode (D3), a second diode (D4), a third resistor (R8) and an inverter (U2), the anode of the first diode (D3) is electrically connected with the output end (G2) of the first pulse generation circuit, the anode of the second diode (D4) is electrically connected with the output end (G3) of the second pulse generation circuit, the cathode of the first diode (D3) and the cathode of the second diode (D4) are electrically connected and then connected to the input end of the inverter (U2), the input end of the inverter (U2) is grounded through the third resistor (R8), and the output end (E1) of the inverter (U2) outputs pulse signals for counting;
and the trigger lugs (K1) are uniformly arranged around the rotation axis of the knob (K).
5. The knob structure with forward and reverse recognition function according to claim 4, wherein said inverter (U2) is an inverter chip with model 74L VC1G04, pin A of the inverter chip is the input terminal of said inverter (U2), pin GND of the inverter chip is grounded, pin VCC of the inverter chip is connected to said DC power supply (VDD), and pin Y of the inverter chip is the output terminal (E1) of said inverter (U2).
6. The knob structure with forward and reverse recognition function according to claim 4, characterized in that: the edge of the knob (K) is provided with 18 trigger lugs (K1) which are evenly arranged around the rotation axis of the knob (K).
7. The knob structure with forward and reverse recognition function according to any one of claims 1 to 6, characterized in that: the knob structure further includes a balance switch (SW2) having the same structure as the detection switch (SW1), the balance switch (SW2) and the detection switch (SW1) being symmetrically arranged around the rotation axis of the knob (K).
8. The knob structure with forward and reverse recognition function according to claim 7, wherein the model of said detection switch (SW1) is Pannasonic ESE23J101, and the model of said balance switch (SW2) is A L PS SSCM 110100.
9. The utility model provides a remote controller, includes face-piece and PCBA board, its characterized in that: the remote controller also comprises a knob structure with a forward and reverse recognition function according to any one of claims 1 to 8; the knob (K) is exposed through a knob mounting hole in the face shell and is in rotatable fit with the knob mounting hole, and the detection switch (SW1), the first pulse generation circuit and the second pulse generation circuit are all arranged on the PCBA board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921637831.4U CN210983130U (en) | 2019-09-27 | 2019-09-27 | Knob structure with forward and reverse recognition function and remote controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921637831.4U CN210983130U (en) | 2019-09-27 | 2019-09-27 | Knob structure with forward and reverse recognition function and remote controller |
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| Publication Number | Publication Date |
|---|---|
| CN210983130U true CN210983130U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921637831.4U Active CN210983130U (en) | 2019-09-27 | 2019-09-27 | Knob structure with forward and reverse recognition function and remote controller |
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| Country | Link |
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| CN (1) | CN210983130U (en) |
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- 2019-09-27 CN CN201921637831.4U patent/CN210983130U/en active Active
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