CN218525025U - Circuit for changing motor power according to pressure - Google Patents
Circuit for changing motor power according to pressure Download PDFInfo
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- CN218525025U CN218525025U CN202223051577.4U CN202223051577U CN218525025U CN 218525025 U CN218525025 U CN 218525025U CN 202223051577 U CN202223051577 U CN 202223051577U CN 218525025 U CN218525025 U CN 218525025U
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Abstract
The utility model relates to the technical field of electric products, in particular to a circuit for changing the power of a motor according to pressure, which comprises a main control module, a power supply module, a sensing module and a driving module, wherein the power supply module, the sensing module and the driving module are all connected with the main control module; the sensing module is used for receiving the pressure signal and transmitting the pressure signal to the main control module; the main control module is used for driving the output power of the motor to change through the driving module according to the pressure signal; the main control module comprises a main control chip, and the model of the main control chip is PY32F003F1xU. The utility model discloses a sensing module sensing pressure changes, lets host system control drive module carry out output current's change according to pressure variation to reach the function that lets motor output change, thereby guaranteed actual use and experienced, feasible product has more intellectuality.
Description
Technical Field
The utility model belongs to the technical field of the electronic product technique and specifically relates to indicate a circuit that changes motor power according to pressure.
Background
For electric products such as electric toothbrushes, fascial guns and the like, the power of the electric products is usually supplied from a motor, and the motor is driven by a corresponding control circuit and the output power of the motor is adjusted. The existing motor control circuit usually realizes the adjustment of output power according to the times of corresponding cases by a user, although the mode is simple and convenient, the resistance of the product contacting with human body is different when the motor control circuit is in actual use, and at the moment, if the output power of the motor is still unchanged, the rotating speed of the motor is easy to be reduced, thereby influencing the actual use effect.
Disclosure of Invention
The utility model discloses problem to prior art provides a circuit according to pressure change motor power.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a circuit for changing motor power according to pressure, which comprises a main control module, a power supply module, a sensing module and a driving module which are all connected with the main control module,
the driving module is used for externally connecting a motor and driving the motor to rotate;
the sensing module is used for receiving the pressure signal and transmitting the pressure signal to the main control module;
the main control module is used for driving the output power of the motor to change through the driving module according to the pressure signal;
the main control module comprises a main control chip, and the model of the main control chip is PY32F003F1xU.
Further, the main control module further comprises a display module, the display module comprises a power lamp, a motor lamp and a control lamp which are all connected with the main control chip, the power lamp is used for displaying whether the main control chip is powered on, the motor lamp is used for displaying whether the motor is powered on, and the control lamp is used for feeding back the current output power of the motor.
Furthermore, the display module further comprises a control tube Q3, a control end of the control tube Q3 is connected to the main control chip, and two power-on ends of the control tube Q3 are respectively connected with power and a control lamp.
Furthermore, the power supply module comprises a voltage reduction module and a charging module, the voltage reduction module is used for supplying power to the external battery and supplying power to the sensing module after reducing the voltage of the current provided by the battery, the charging module is connected to the main control module and the external battery, and the charging module is used for supplying power to the main control module and charging the battery when being connected with an external power supply.
Furthermore, the voltage reduction module comprises a voltage reduction chip, a capacitor C3 and a capacitor C4, the voltage reduction chip is XC6214P272PR in model number, a second pin of the voltage reduction chip is grounded through the capacitor C3, a third pin of the voltage reduction chip is grounded through the capacitor C4, the second pin of the voltage reduction chip is externally connected with a battery, and the third pin of the voltage reduction chip is connected with the sensing module.
Furthermore, the charging module comprises a charging coil Rex, a charging chip, a capacitor C1 and a capacitor C6, the model of the charging chip is SGD5142ED, the input end of the charging coil Rex is externally connected with a power supply, the output end of the charging coil Rex is connected with the seventh pin of the charging chip, the sixth pin of the charging chip is externally connected with the positive electrode of the battery and is connected with the main control module, the sixth pin of the charging chip is connected with the negative electrode of the battery and the ground through the capacitor C6, and the first pin and the second pin of the charging chip are grounded.
Furthermore, the sensing module comprises a single chip microcomputer, a pressure sensor, a switch tube Q1 and a switch tube Q2, wherein the pressure sensor is connected to the single chip microcomputer, and the single chip microcomputer is connected to the main control module through the switch tube Q1 and the switch tube Q2.
Furthermore, the driving module comprises a driving chip, a capacitor C14, a capacitor C16 and a capacitor C19, an external battery of a fourth pin of the driving chip is grounded through the capacitor C14, a fifth pin and an eighth pin of the driving chip are respectively externally connected with the motor, a sixth pin of the driving chip is grounded and externally connected with the motor through the capacitor C16, and a seventh pin of the driving chip is grounded and externally connected with the motor through the capacitor C19.
Furthermore, a fifth pin of the main control chip is connected to a touch key, and the touch key is used for receiving a touch signal to wake up the main control chip when the main control chip is powered on.
The utility model has the advantages that: the utility model discloses a sensing module sensing pressure changes, lets host system control drive module carry out output current's change according to pressure variation to reach the function that lets motor output change, thereby guaranteed actual use and experienced, make the product more possess the intellectuality.
Drawings
Fig. 1 is a schematic block diagram of the present invention.
Fig. 2 is a schematic diagram of the main control module of the present invention.
Fig. 3 is a schematic diagram of the display module of the present invention.
Fig. 4 is a schematic diagram of the power supply module of the present invention.
Fig. 5 is a schematic diagram of the sensing module of the present invention.
Fig. 6 is a schematic diagram of the driving module of the present invention.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 6, the circuit for changing the power of a motor according to pressure provided by the present invention comprises a main control module, a power supply module, a sensing module and a driving module all connected to the main control module,
the driving module is used for externally connecting a motor and driving the motor to rotate;
the sensing module is used for receiving the pressure signal and transmitting the pressure signal to the main control module;
the main control module is used for driving the motor to output power to change through the driving module according to the pressure signal;
the main control module comprises a main control chip U4, the model of the main control chip U4 is PY32F003F1xU, the performance of the main control chip U4 is high, and the main control module can quickly respond to change the output power of the motor according to the signal change of the sensing module.
Specifically, for example, when the utility model is applied to an electric toothbrush, the sensing module can be arranged at the brush head, and when the user starts the toothbrush after the brush head position is pressed against the teeth, the main control module controls the driving module to work, so that the driving module drives the motor to rotate; if the force of the user changes, for example, the force of the brush head against the teeth increases, the signal of the sensing module changes and is transmitted to the main control module, and the main control module controls the output of the driving module to increase, so that the output power of the motor increases, that is, the increased part of the external force is offset by the increased output power, thereby ensuring the inconvenience of the rotating speed of the motor and the tooth brushing effect.
In this embodiment, main control module still includes the display module, and the display module is including all connecting with main control chip U4's power lamp LED8, motor lamp LED7 and control lamp, and power lamp LED8 is used for showing whether main control chip U4 is electrified, and motor lamp LED7 is used for showing whether the motor is electrified, and the control lamp is used for feeding back the current output power of motor. Display module mainly used shows the power whether opens, whether the motor is the state of circular telegram work promptly, and this control lamp can be the breathing lamp, changes along with motor output changes and corresponds luminance promptly and change to feedback luminance directly perceived and let the user learn, guarantee that the user can not exert oneself too hard and violent and cause the injury to the gum.
Specifically, the display module further comprises a control tube Q3, a control end of the control tube Q3 is connected to the main control chip U4, and two power-on ends of the control tube Q3 are respectively connected with the power supply and the control lamp. The control tube Q3 is preferably an MOS tube, a resistor R10 is arranged between a grid electrode and a source electrode of the control tube for protection, the grid electrode is connected to the POWER-CTRL end of the main control chip, the source electrode is externally connected with a battery, and a drain electrode is connected with the control lamp; the control lamp can be composed of a plurality of lamp beads LED1-LED6 which are connected in parallel, the input end of each lamp bead is grounded through a corresponding capacitor (C8, C9, C10, C12 and C14) respectively to achieve the protection effect, namely the main control chip controls the magnitude of the current passing between the source electrode and the drain electrode through the strength of the signal of the input grid electrode, and the effect of the breathing lamp is achieved.
In this embodiment, the power supply module includes a voltage reduction module and a charging module, the voltage reduction module is used for an external battery and supplies power to the sensing module after reducing the voltage of the current provided by the battery, the charging module is connected to the main control module and the external battery, and the charging module is used for an external power supply and supplies power to the main control module and charges the battery when the external power supply is applied.
Specifically, the voltage reduction module comprises a voltage reduction chip U2, a capacitor C3 and a capacitor C4, the model of the voltage reduction chip U2 is XC6214P272PR, a second pin of the voltage reduction chip U2 is grounded through the capacitor C3, a third pin of the voltage reduction chip U2 is grounded through the capacitor C4, a second pin of the voltage reduction chip U2 is externally connected with a battery, and the third pin of the voltage reduction chip U2 is connected with the sensing module.
Namely, the voltage reduction chip U2 is used for reducing the voltage of the battery to 2.7V and then supplying power to the sensing module so as to ensure that the sensing module works under the rated voltage and avoid burning out; the capacitor C3 and the capacitor C4 play a role in storing and releasing energy, and the stability of current is ensured.
Specifically, the module of charging includes charging coil Rex, charging chip U3, electric capacity C1 and electric capacity C6, charging chip U3's model is SGD5142ED, charging coil Rex's input external power supply, charging coil Rex's output is connected in charging chip U3's seventh pin, charging chip U3's the external battery of sixth pin is anodal and connect in host system, charging chip U3's the external battery negative pole of sixth pin warp electric capacity C6 and ground connection, charging chip U3's first pin and second pin ground connection.
Namely the utility model discloses the mode that the accessible is wireless charges, carries out rectification and steady voltage back to the electric energy that charging coil Rex obtained by charging chip U3, is battery charging on the one hand, and on the other hand does the utility model discloses supply power, in order to guarantee the utility model discloses can stable work under charged state.
In this embodiment, the sensing module includes singlechip U1, pressure sensor SP, switch tube Q1 and switch tube Q2, and pressure sensor SP connects in singlechip U1, and singlechip U1 connects in main control module through switch tube Q1 and switch tube Q2.
Through the mode that the pressure sensor SP receives different pressures and produces different signals, let singlechip U1 transmit the signal after handling to main control chip U4 to let main control chip U4 carry out the adaptability adjustment through drive module control motor rotational speed according to this signal, reached according to the effect of pressure self-adaptation adjustment output power.
In this embodiment, the driving module includes a driving chip U6, a capacitor C14, a capacitor C16 and a capacitor C19, an external battery at a fourth pin of the driving chip U6 is grounded via the capacitor C14, a fifth pin and an eighth pin of the driving chip U6 are respectively externally connected to a motor, a sixth pin of the driving chip U6 is grounded and externally connected to the motor via the capacitor C16, and a seventh pin of the driving chip U6 is grounded and externally connected to the motor via the capacitor C19.
Specifically, the type of the driving chip U6 is TC118S, and the output power (output power) of the motor can be adjusted according to the change of the control signal of the main control module.
In this embodiment, the fifth pin (TOUCH-KEY 2 end) of main control chip U4 is connected in TOUCH button K1, and TOUCH button K1 is used for receiving the TOUCH signal and awaken up main control chip U4 when main control chip U4 connects the electricity, lets the utility model discloses a mode that the TOUCH corresponds the position can start to let the outward appearance need not to set up bellied button specially, make and enclose to watch more succinctly.
Specifically, the TOUCH-KEY1 and the TOUCH-KEY2 of the main control chip U4 are connected with the same control chip U5, the model of the control chip U5 is a102C, and the control chip U5 is used for controlling the main control chip U4 to send out a corresponding control signal according to a signal of a TOUCH KEY, so that the signal processing is more accurate.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.
Claims (9)
1. A circuit for varying motor power as a function of pressure, comprising: comprises a main control module, a power supply module, a sensing module and a driving module which are connected with the main control module,
the driving module is used for externally connecting a motor and driving the motor to rotate;
the sensing module is used for receiving the pressure signal and transmitting the pressure signal to the main control module;
the main control module is used for driving the motor to output power to change through the driving module according to the pressure signal;
the main control module comprises a main control chip, and the model of the main control chip is PY32F003F1xU.
2. The circuit for varying motor power as a function of pressure of claim 1, wherein: the main control module further comprises a display module, the display module comprises a power lamp, a motor lamp and a control lamp which are all connected with the main control chip, the power lamp is used for displaying whether the main control chip is powered on, the motor lamp is used for displaying whether the motor is powered on, and the control lamp is used for feeding back the current output power of the motor.
3. The circuit for varying motor power as a function of pressure of claim 2, wherein: the display module further comprises a control tube Q3, the control end of the control tube Q3 is connected to the main control chip, and two power-on ends of the control tube Q3 are respectively connected with the power supply and the control lamp.
4. The circuit for varying motor power as a function of pressure of claim 1, wherein: the power supply module comprises a voltage reduction module and a charging module, the voltage reduction module is used for connecting an external battery and supplying power to the sensing module after reducing the voltage of the current provided by the battery, the charging module is connected to the main control module and the external battery, and the charging module is used for connecting an external power supply and supplying power to the main control module and charging the battery when the external power supply is connected.
5. The circuit for varying motor power as a function of pressure of claim 4, wherein: the voltage reduction module comprises a voltage reduction chip, a capacitor C3 and a capacitor C4, the model of the voltage reduction chip is XC6214P272PR, a second pin of the voltage reduction chip is grounded through the capacitor C3, a third pin of the voltage reduction chip is grounded through the capacitor C4, the second pin of the voltage reduction chip is externally connected with a battery, and the third pin of the voltage reduction chip is connected with the sensing module.
6. The circuit for varying motor power as a function of pressure of claim 4, wherein: the module that charges includes charging coil Rex, the chip that charges, electric capacity C1 and electric capacity C6, the model of the chip that charges is SGD5142ED, charging coil Rex's input external power source, charging coil Rex's output is connected in charging chip's seventh pin, charging chip's sixth pin is external battery positive pole and is connected in host system, charging chip's sixth pin is through the external battery negative pole of electric capacity C6 and ground connection, charging chip's first pin and second pin ground connection.
7. The circuit for varying motor power as a function of pressure of claim 1, wherein: the sensing module comprises a single chip microcomputer, a pressure sensor, a switch tube Q1 and a switch tube Q2, the pressure sensor is connected to the single chip microcomputer, and the single chip microcomputer is connected to the main control module through the switch tube Q1 and the switch tube Q2.
8. The circuit for varying motor power as a function of pressure of claim 1, wherein: the driving module comprises a driving chip, a capacitor C14, a capacitor C16 and a capacitor C19, wherein a fourth pin of the driving chip is externally connected with a battery and is grounded through the capacitor C14, a fifth pin and an eighth pin of the driving chip are respectively externally connected with a motor, a sixth pin of the driving chip is grounded and is externally connected with the motor through the capacitor C16, and a seventh pin of the driving chip is grounded and is externally connected with the motor through the capacitor C19.
9. The circuit for varying motor power as a function of pressure of claim 1, wherein: and a fifth pin of the main control chip is connected to the touch key, and the touch key is used for receiving a touch signal to wake up the main control chip when the main control chip is powered on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223051577.4U CN218525025U (en) | 2022-11-16 | 2022-11-16 | Circuit for changing motor power according to pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223051577.4U CN218525025U (en) | 2022-11-16 | 2022-11-16 | Circuit for changing motor power according to pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218525025U true CN218525025U (en) | 2023-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223051577.4U Active CN218525025U (en) | 2022-11-16 | 2022-11-16 | Circuit for changing motor power according to pressure |
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| Country | Link |
|---|---|
| CN (1) | CN218525025U (en) |
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- 2022-11-16 CN CN202223051577.4U patent/CN218525025U/en active Active
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