CN216056852U - Intelligence airing machine elevator motor control circuit - Google Patents
Intelligence airing machine elevator motor control circuit Download PDFInfo
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- CN216056852U CN216056852U CN202122198283.3U CN202122198283U CN216056852U CN 216056852 U CN216056852 U CN 216056852U CN 202122198283 U CN202122198283 U CN 202122198283U CN 216056852 U CN216056852 U CN 216056852U
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Abstract
The utility model discloses an intelligent clothes airing machine lifting motor control circuit which comprises a motor, a first electronic switch, a second electronic switch, a signal judgment logic circuit and an MCU (microprogrammed control Unit); the MCU control unit comprises a first output end and a second output end; the first electronic switch is connected between the first output end of the MCU control unit and the motor so as to control the motor to rotate in a first direction; the second electronic switch is connected between the signal judgment logic circuit and the motor so as to control the motor to generate second steering opposite to the first steering; the first output end of the MCU control unit controls the on-off of the first electronic switch; the signal judgment logic circuit is connected to the first output end and the second output end, and signals of the two output ends of the MCU control unit are interlocked to control the second electronic switch to be opened and closed, so that the possibility that the first electronic switch and the second electronic switch are simultaneously opened is avoided, two windings of the motor are simultaneously started, and the motor is prevented from being damaged.
Description
Technical Field
The utility model relates to a control circuit in the field of clothes airing, in particular to a control circuit for a lifting motor of an intelligent clothes airing machine.
Background
The alternating current tubular motor used by the intelligent clothes airing machine at present controls the positive rotation and the negative rotation of the motor by two groups of different windings in the motor, so that the rising and the falling of the airing rod of the clothes airing machine are realized. The work of the forward winding or the reverse winding is controlled by the control circuit, but when the control circuit fails or external interference exists, the control of the two windings of the motor is failed, and particularly when the two windings are switched on simultaneously, the motor is damaged or damaged.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problem of control error of the two windings of the motor, the utility model provides a control signal judgment circuit which is used for reversely interlocking the forward and reverse control signals output by the MCU so as to avoid the condition of simultaneously switching on the two windings and further avoid the damage to the motor.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the intelligent clothes airing machine lifting motor control circuit comprises a motor, a first electronic switch, a second electronic switch, a signal judgment logic circuit and an MCU (microprogrammed control Unit);
the MCU control unit comprises a first output end and a second output end;
the first electronic switch is connected between the first output end of the MCU control unit and the motor so as to control the motor to rotate in a first direction;
the second electronic switch is connected between the signal judgment logic circuit and the motor so as to control the motor to generate second steering opposite to the first steering;
the first output end of the MCU control unit controls the on-off of the first electronic switch;
the signal judgment logic circuit is connected to the first output end and the second output end, and signals of the two output ends of the MCU control unit are interlocked to control the second electronic switch to be opened and closed.
The utility model adopts a further preferable technical scheme for solving the technical problems as follows: the interlocking means that when the first output end and the second output end output the steering signals simultaneously, the signal judgment logic circuit locks the signals to close the second electronic switch.
The utility model adopts a further preferable technical scheme for solving the technical problems as follows: the signal judgment logic circuit comprises an inverter and a comparator;
the first output end of the MCU control unit is connected with the input end of the reverser;
the output end of the inverter is connected with the first input end of the comparator;
the second input end of the comparator is connected with the second output end of the MCU control unit;
the output end of the comparator is connected with the input end of the second electronic switch.
The utility model adopts a further preferable technical scheme for solving the technical problems as follows: the inverter inverts the voltage signal of the first output end of the MCU control unit and inputs the inverted voltage signal to the first input end of the comparator;
a voltage signal of a second output end of the MCU control unit is input into a second input end of the comparator;
the comparator compares and processes the voltage signal of the first input end with the voltage signal of the second input end and then outputs the voltage signal;
when the voltage of the first input end is less than or equal to the voltage of the second input end, the comparator outputs a low level closing instruction to the second switch.
The utility model adopts a further preferable technical scheme for solving the technical problems as follows: the motor comprises a first winding for first steering and a second winding for second steering, wherein the first electronic switch is connected with the first winding, and the second electronic switch is connected with the second winding.
The utility model adopts a further preferable technical scheme for solving the technical problems as follows: the first direction is changed into positive rotation, the second direction is changed into negative rotation, the first output end is used for outputting a positive rotation signal, and the second output end is used for outputting a negative rotation signal.
The utility model adopts a further preferable technical scheme for solving the technical problems as follows: the electronic switch is a relay, a controllable silicon and an MOS tube.
The utility model adopts a further preferable technical scheme for solving the technical problems as follows: the MCU control unit triggers the first steering signal or the second steering signal according to the environmental condition.
The utility model adopts a further preferable technical scheme for solving the technical problems as follows: the environmental conditions include at least one of temperature, light, clothes drying degree and manual operation.
The utility model adopts a further preferable technical scheme for solving the technical problems as follows: the intelligent clothes airing machine lifting motor control circuit comprises an alternating current tubular motor, a first electronic switch, a second electronic switch, a signal judgment logic circuit and an MCU (microprogrammed control Unit);
the motor comprises a first winding for forward rotation of the motor and a second winding for reverse rotation of the motor;
the MCU control unit comprises a forward rotation signal output end and a reverse rotation signal output end;
the signal judgment logic circuit comprises an inverter and a comparator;
the positive rotation signal output end is electrically connected with the input end of the first electronic switch and the input end of the reverser,
the first input end of the comparator is electrically connected with the output end of the inverter;
the inversion signal output end is electrically connected with the second input end of the comparator;
the output end of the comparator is electrically connected with the input end of the second electronic switch;
the output end of the first electronic switch is electrically connected with a first winding of the motor;
and the output end of the second electronic switch is electrically connected with a second winding of the motor.
Compared with the prior art, the utility model has the advantages that the signal of the second output end is processed by the signal judgment logic circuit and then is sent to the second electronic switch, so that the reverse interlocking of the signals is realized, and the damage of the motor caused by the fact that the motor receives two opposite steering signals is avoided.
When the first electronic switch has a high-level working instruction, the instruction generates a low level through the inverter, and a closing instruction is sent to the second electronic switch through the signal judgment logic circuit.
When the first electronic switch has a low level closing instruction, a high level is generated through the reverser, and if the MCU sends a motor reversal high level working instruction, the signal judgment logic circuit sends a high level working instruction to the second electronic switch.
And if the MCU does not send a motor working instruction, the logic judgment circuit sends a low-level working instruction to the second electronic switch.
Therefore, the signal judgment logic circuit avoids the possibility that the first electronic switch and the second electronic switch are simultaneously started, and avoids the simultaneous starting of two windings of the motor so as to prevent the motor from being damaged.
Drawings
The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the preferred embodiments and therefore should not be taken as limiting the scope of the utility model. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.
Fig. 1 is a control circuit of a lifting motor of an intelligent clothes airing machine according to a preferred embodiment;
FIG. 2 is a schematic diagram of a signal determination logic of a preferred embodiment;
FIG. 3 is a diagram illustrating a forward high level signal output terminal and a reverse low level signal output terminal;
FIG. 4 is a diagram illustrating a forward rotation signal output terminal at a low level and a reverse rotation signal output terminal at a reverse high level;
FIG. 5 is a diagram illustrating a forward rotation signal output terminal at a forward high level and a reverse rotation signal output terminal at a reverse high level;
fig. 6 is a schematic diagram of the forward rotation signal output terminal and the reverse rotation signal output terminal both at a forward high level.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is illustrative only, and is not to be construed as limiting the scope of the utility model.
It should be noted that: like reference numerals refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.
In the description of the present invention, it is also to be noted that the term "connected" is to be understood broadly and may be either electrically or signal connected, unless explicitly stated or limited otherwise. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.
The intelligent clothes airing machine controls two groups of different windings in the motor through the control circuit to control the positive rotation or the negative rotation of the motor, so that the rising or falling action of the airing rod of the clothes airing machine is realized. If both windings are switched on simultaneously, damage or destruction of the motor can occur.
As shown in fig. 1, the present embodiment provides a control circuit applied to an intelligent clothes airing machine for preventing a motor a from being damaged, which includes a motor a, a first electronic switch B, a second electronic switch C, a signal judgment logic circuit D, and an MCU control unit E.
The MCU control unit comprises a first output end 3 and a second output end 4; the first electronic switch is connected between the first output end of the MCU control unit and the motor so as to control the motor to rotate in a first direction; the second electronic switch is connected between the signal judgment logic circuit and the motor so as to control the motor to generate second steering opposite to the first steering; the first output end of the MCU control unit controls the on-off of the first electronic switch; the signal judgment logic circuit is connected to the first output end and the second output end, and signals of the two output ends of the MCU control unit are interlocked to control the second electronic switch to be opened and closed.
The interlocking means that when the first output end and the second output end output the steering signals simultaneously, the signal judgment logic circuit locks the signals to close the second electronic switch.
As shown in fig. 1 and 2, specifically, the motor a includes a first winding 1 for a first direction of rotation and a second winding 2 for a second direction of rotation; the MCU control unit E comprises a first output end 3 and a second output end 4, the first output end 3 outputs a first turning signal, and the second output end 4 outputs a second turning signal opposite to the first turning signal.
The first electronic switch B is connected between the first output terminal 3 and the first winding 1 of the motor a; the input end of the signal judgment logic circuit D is connected with the first output end 3 and the second output end 4; the second electronic switch C is connected between the output of the signal decision logic D and the second winding 2 of the motor a.
When the first output end 3 outputs the first signal, a starting instruction is formed for the first electronic switch B, and the first electronic switch B is started to switch on the first winding 1, so that the motor A rotates in a first direction. The signal judgment logic circuit D analyzes the output signals of the first output terminal 3 and the second output terminal 4, and sends an opening instruction to the second electronic switch C only when receiving the second turning signal, and the second electronic switch C is opened to switch on the second winding 2, so that the motor a makes a second turn.
Therefore, the signal of the second output end 4 is processed by the signal judging logic circuit D and then is sent to the second electronic switch C, and the damage of the motor A caused by the fact that the motor A receives two opposite steering signals is avoided.
Specifically, in the present embodiment, the first forward rotation refers to forward rotation of the motor a, and the second forward rotation refers to reverse rotation of the motor a. The first output end 3 of the MCU control unit E is a forward rotation signal output end, the second output end 4 is a reverse rotation signal output end, the first forward rotation signal is a forward rotation signal, and the second reverse rotation signal is a reverse rotation signal. The first electronic switch B controls the motor A to rotate forwards, and the second electronic switch C controls the motor A to rotate backwards.
In this embodiment, the first and second steering signals are voltage signals, and the motor a, the first electronic switch B, the second electronic switch C, the signal determination logic circuit D, and the MCU control unit E are all electrically connected to realize signal transmission therebetween.
And the MCU control unit E automatically triggers a signal according to environmental conditions, wherein the environmental conditions comprise at least one of temperature, illumination, clothes drying degree and manual operation. Still alternatively, the MCU control unit E operates the remote controller trigger signal with a user.
Preferably, the first electronic switch B and the second electronic switch C may be any one of a relay, a thyristor and a MOS transistor.
As shown in fig. 1 and 2, the signal judgment logic circuit D includes an inverter 5 and a comparator 6. The input end of the reverser 5 is connected with the positive rotation signal output end of the MCU control unit E and the input end of the first electronic switch B, and the output end of the reverser 5 is connected with the first input end 61 of the comparator 6.
The inverted signal output of the MCU control unit E is connected to the second input 62 of the comparator 6. The output of the comparator 6 is connected to the input of the second electronic switch C.
And the forward rotation signal and the reverse rotation signal output by the MCU control unit E are both high level, otherwise, the low level is output. The inverter 5 inverts the voltage inputted from the forward rotation signal output terminal, and the comparator 6 compares the voltage of the first input terminal 61 with the voltage of the second input terminal 62. When the voltage of the first input terminal 61 is less than or equal to the voltage of the second input terminal 62, the output terminal of the comparator 6 is at a low level. The first electronic switch B and the second electronic switch C are both switched on at a high level and switched off at a low level to stop working.
As shown in fig. 1 and 3, the signal a at the forward rotation signal output terminal of the MCU control unit E is a forward high level pulse, and the signal b at the reverse rotation signal output terminal is a continuous low level, i.e. a continuous low level is output to the second input terminal 62 of the comparator 6, i.e. no reverse rotation signal is output.
At this time, the signal c of the first electronic switch B is a forward high-level pulse, that is, the first electronic switch B receives a high-level turn-on command to drive the first winding 1 to rotate forward.
Meanwhile, the inverter 5 receives the signal a at the forward signal output terminal and inverts it to form an inverted signal d, that is, inverts the forward high level pulse and outputs the inverted high level pulse to the first input terminal 61 of the comparator 6.
The voltage at the first input 61 < the voltage at the second input 62, and the signal e at the output of the comparator 6 is low, that is, a low-level turn-off command is sent to the second electronic switch C, and the second winding 2 cannot be driven.
As shown in fig. 1 and 4, the signal a at the forward rotation signal output end of the MCU control unit E is at a continuous low level, i.e., no forward rotation signal is output. That is, the signal c of the first electronic switch B is at a low level, that is, the forward rotation signal output end sends a low level turn-off command to the first electronic switch B, and the first winding 1 cannot be driven.
Meanwhile, the signal b at the output end of the inverted signal is an inverted high level pulse, that is, an inverted high level pulse is output to the second input end 62 of the comparator 6, that is, an inverted signal is output.
The inverter 5 receives the signal a at the forward rotation signal output terminal and inverts it to form an inverted signal d, i.e. it receives a continuous low level and inverts it to a continuous low level, i.e. the inverter 5 outputs a continuous low level to the first input terminal 61 of the comparator 6.
The voltage of the first input terminal 61 > the voltage of the second input terminal 62, and the signal e at the output terminal of the comparator 6 is an inverted high level pulse, that is, the comparator 6 outputs a high level turn-on command to the second electronic switch C, so as to drive the second winding 2 of the motor a to rotate reversely.
As shown in fig. 1 and 5, a signal a at the forward rotation signal output end of the MCU control unit E is a forward high level pulse, and a signal b at the reverse rotation signal output end is a reverse high level pulse.
The signal c of the first electronic switch B is a positive high level pulse, that is, the first electronic switch B receives a high level turn-on command to drive the first winding 1 to rotate positively.
Meanwhile, the inverter 5 receives the forward high level pulse and inverts it, and the inverted signal d formed by the inverter 5 is an inverted high level pulse and outputs the inverted high level pulse to the first input terminal 61 of the comparator 6. The second input 62 of the comparator 6 is an inverted high pulse.
The first input terminal 61 is at the second input terminal 62, and the output terminal of the comparator 6 is at low level, that is, a low-level turn-off command is sent to the second electronic switch C, so that the second winding 2 cannot be driven.
Even, as shown in fig. 1 and 6, the signal a at the forward rotation signal output end and the signal b at the reverse rotation signal output end of the MCU control unit E are both positive high level pulses.
The signal c of the first electronic switch B is a positive high level pulse, that is, the first electronic switch B receives a high level turn-on command to drive the first winding 1 to rotate positively.
Meanwhile, the inverter 5 receives the forward high level pulse and inverts it, and the inverted signal d formed by the inverter 5 is an inverted high level pulse, that is, the inverted high level pulse is output to the first input terminal 61 of the comparator 6. The second input 62 of the comparator 6 is the signal b at the output of the inverted signal, i.e. a positive high pulse.
The voltage at the first input 61 < the voltage at the second input 62, and the signal e at the output of the comparator 6 is low, that is, a low-level turn-off command is sent to the second electronic switch C, and the second winding 2 cannot be driven.
In summary, only when the high-level pulse output from the inversion signal output terminal is received, the signal determination logic circuit D sends an on command to the second electronic switch C, and the second electronic switch C is turned off under other conditions, so that the second winding 2 cannot rotate.
Therefore, the signal judgment logic circuit avoids the possibility that the first electronic switch and the second electronic switch are simultaneously started, and avoids the simultaneous starting of two windings of the motor so as to prevent the motor from being damaged.
The intelligent clothes airing machine lifting motor control circuit provided by the utility model is described in detail, a specific example is applied in the description to explain the principle and the implementation mode of the utility model, and the description of the embodiment is only used for helping to understand the utility model and the core idea. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The intelligent clothes airing machine lifting motor control circuit is characterized by comprising a motor, a first electronic switch, a second electronic switch, a signal judgment logic circuit and an MCU (microprogrammed control Unit);
the MCU control unit comprises a first output end and a second output end;
the first electronic switch is connected between the first output end of the MCU control unit and the motor so as to control the motor to rotate in a first direction;
the second electronic switch is connected between the signal judgment logic circuit and the motor so as to control the motor to generate second steering opposite to the first steering;
the first output end of the MCU control unit controls the on-off of the first electronic switch;
the signal judgment logic circuit is connected to the first output end and the second output end, and signals of the two output ends of the MCU control unit are interlocked to control the second electronic switch to be opened and closed.
2. The intelligent clothes airing machine lifting motor control circuit according to claim 1, wherein the interlocking means that when the first output end and the second output end simultaneously output the steering signal, the signal judgment logic circuit locks the signal to turn off the second electronic switch.
3. The intelligent clothes airing machine lifting motor control circuit according to claim 1, characterized in that the signal judgment logic circuit comprises an inverter and a comparator;
the first output end of the MCU control unit is connected with the input end of the reverser;
the output end of the inverter is connected with the first input end of the comparator;
the second input end of the comparator is connected with the second output end of the MCU control unit;
the output end of the comparator is connected with the input end of the second electronic switch.
4. The intelligent clothes airing machine lifting motor control circuit according to claim 3, characterized in that the inverter inverts a voltage signal at the first output end of the MCU control unit and inputs the inverted voltage signal to the first input end of the comparator;
a voltage signal of a second output end of the MCU control unit is input into a second input end of the comparator;
the comparator compares and processes the voltage signal of the first input end with the voltage signal of the second input end and then outputs the voltage signal;
when the voltage of the first input end is less than or equal to the voltage of the second input end, the comparator outputs a low level closing instruction to the second switch.
5. The intelligent clothes horse lifting motor control circuit according to claim 1, wherein the motor comprises a first winding for a first direction change and a second winding for a second direction change, the first electronic switch is connected with the first winding, and the second electronic switch is connected with the second winding.
6. The intelligent clothes horse lifting motor control circuit according to claim 1, wherein the first direction is forward rotation, the second direction is reverse rotation, the first output end is used for outputting a forward rotation signal, and the second output end is used for outputting a reverse rotation signal.
7. The intelligent clothes airing machine lifting motor control circuit according to claim 1, characterized in that the electronic switch is a relay, a thyristor or an MOS tube.
8. The intelligent clothes horse lifting motor control circuit according to claim 1, wherein the MCU control unit triggers the first or second turning signal according to an environmental condition.
9. The intelligent clothes horse lifting motor control circuit according to claim 8, wherein the environmental conditions comprise at least one of temperature, light, clothes drying degree and manual operation.
10. The intelligent clothes airing machine lifting motor control circuit is characterized by comprising an alternating current tubular motor, a first electronic switch, a second electronic switch, a signal judgment logic circuit and an MCU (microprogrammed control Unit);
the motor comprises a first winding for forward rotation of the motor and a second winding for reverse rotation of the motor;
the MCU control unit comprises a forward rotation signal output end and a reverse rotation signal output end;
the signal judgment logic circuit comprises an inverter and a comparator;
the positive rotation signal output end is electrically connected with the input end of the first electronic switch and the input end of the reverser,
the first input end of the comparator is electrically connected with the output end of the inverter;
the inversion signal output end is electrically connected with the second input end of the comparator;
the output end of the comparator is electrically connected with the input end of the second electronic switch;
the output end of the first electronic switch is electrically connected with a first winding of the motor;
and the output end of the second electronic switch is electrically connected with a second winding of the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122198283.3U CN216056852U (en) | 2021-09-10 | 2021-09-10 | Intelligence airing machine elevator motor control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122198283.3U CN216056852U (en) | 2021-09-10 | 2021-09-10 | Intelligence airing machine elevator motor control circuit |
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| CN216056852U true CN216056852U (en) | 2022-03-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114337461A (en) * | 2021-09-10 | 2022-04-12 | 金华好哥信息技术有限公司 | Control circuit and method for preventing motor damage applied to intelligent clothes airing machine |
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2021
- 2021-09-10 CN CN202122198283.3U patent/CN216056852U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114337461A (en) * | 2021-09-10 | 2022-04-12 | 金华好哥信息技术有限公司 | Control circuit and method for preventing motor damage applied to intelligent clothes airing machine |
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