CN217135152U - Device for quickly relieving locked rotation of electric nail clippers - Google Patents
Device for quickly relieving locked rotation of electric nail clippers Download PDFInfo
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- CN217135152U CN217135152U CN202220742822.7U CN202220742822U CN217135152U CN 217135152 U CN217135152 U CN 217135152U CN 202220742822 U CN202220742822 U CN 202220742822U CN 217135152 U CN217135152 U CN 217135152U
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- motor
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- current detection
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Abstract
The utility model discloses an electronic nail clippers stifled quick remove device that changes, including the control unit, motor drive unit and current detection unit, the motor passes through the motor drive unit and is connected with the control unit, the current detection unit is connected with the control unit and motor drive unit respectively, the work current change of current detection unit detection motor to give the control unit with the signal transmission, the corotation and the reversal of the control unit through motor drive unit control motor. The utility model discloses a quick release device of electronic nail clippers stalling detects the working current change of the motor through the current detection unit, judges whether the stalling phenomenon exists; if the locked rotor occurs, the working current of the motor is increased, the control unit can solve the locked rotor problem by controlling the positive and negative rotation of the motor, and the use of a common user is facilitated.
Description
Technical Field
The utility model relates to an electronic nail clippers field, in particular to electronic nail clippers stifled commentaries on classics removes device fast.
Background
The tool bit subassembly of electronic nail clippers has decided under some special scenes because its self structural morphology, for example when having the foreign matter to stretch into the tool bit, has the risk of being blocked by the foreign matter to make the tool bit unable continuation rotation, influence electronic nail clippers's normal use. And the common user can not remove the fault by himself, so it is necessary to design a device that can help the user to remove the locked-rotor fault quickly.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem, the utility model discloses an electronic nail clippers stifled commentaries on classics removes device fast, including the control unit, motor drive unit and current detection unit, the motor passes through the motor drive unit and is connected with the control unit, the current detection unit is connected with the control unit and motor drive unit respectively, the operating current of current detection unit detection motor changes to give the control unit with signal transmission, the corotation and the reversal of the control unit through motor drive unit control motor.
Furthermore, a No. 5 pin of the motor driving unit is connected with a No. 9 pin of the control unit, and a No. 1 pin and a No. 4 pin of the motor driving unit are respectively connected with the positive electrode and the negative electrode of the motor.
Furthermore, the current detection unit comprises a first resistor, a second resistor and a first capacitor, the first resistor and the first capacitor form an RC filter circuit, one end of the second resistor is connected with the No. 5 pin of the motor driving unit, and the other end of the second resistor is connected with the grounding terminal.
The utility model has the advantages that:
the utility model discloses a quick release device of electronic nail clippers stalling detects the working current change of the motor through the current detection unit, judges whether the stalling phenomenon exists; if the locked rotor occurs, the working current of the motor is increased, the control unit can solve the locked rotor problem by controlling the positive and negative rotation of the motor, and the use of a common user is facilitated.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic circuit diagram of the present invention;
fig. 2 is a schematic circuit diagram of the control unit of the present invention;
fig. 3 is a schematic circuit diagram of the motor driving unit of the present invention;
fig. 4 is a schematic circuit diagram of the motor of the present invention.
Reference numerals:
1-a control unit; 2, a motor; 3-a motor drive unit; 4-current detection unit.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the description of the embodiments, the terms "disposed," "connected," and the like are to be construed broadly unless otherwise explicitly specified or limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; either directly or through an intervening medium, or through internal communication between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the device for quickly removing the locked rotor of the electric nail clipper of the present embodiment includes a control unit 1, a motor 2, a motor driving unit 3 and a current detecting unit 4, the motor 2 is connected to the control unit 1 through the motor driving unit 3, the current detecting unit 4 is respectively connected to the control unit 1 and the motor driving unit 3, the current detecting unit 4 detects the working current change of the motor 2 and transmits the signal to the control unit 1, and the control unit 1 controls the forward rotation and the reverse rotation of the motor 2 through the motor driving unit 3 to remove the locked rotor problem.
The control unit 1 can adopt single-chip microcomputers of FT61F022A-RB, FT61F0A5-TRB, FT62F085E-TRB and the like; the motor driving unit 3 can adopt motor driving chips of HR9110, TMI8118S, BDR6121B and the like.
As shown in fig. 2-4, pin No. 5 of the motor driving unit 3 is connected to pin No. 9 of the control unit 1, and pin No. 1 and pin No. 4 of the motor driving unit 3 are respectively connected to the positive and negative electrodes of the motor 2.
The current detection unit 4 includes a first resistor R1, a second resistor R2, and a first capacitor C1, the first resistor R1 and the first capacitor C1 form an RC filter circuit, one end of the second resistor R2 is connected to the pin No. 5 of the motor drive unit 3, and the other end is connected to the ground.
The current detection unit 4 determines whether the working current of the motor 2 changes by detecting the voltage change at the two ends of the second resistor R2, and then determines whether the inside of the electric nail clipper is blocked by a foreign object to cause the motor stalling phenomenon. If the motor 2 is locked, the current passing through the motor 2 is increased, the voltage at the two ends of the second resistor R2 is also increased, at the moment, the control unit 1 stops the motor 2 from rotating for 1-2 seconds, and then rotates the motor 2 reversely for 1-2 seconds; then, the current passing through the motor 2 is detected again, and whether the foreign matters are discharged or not is judged; if the discharge is made, the motor 2 stops operating, and if the discharge is not made, the second reverse rotation is tried for 1-2 seconds. If the discharge is not performed (the locked rotor is not released) after n (n is 1, 2, 3 … 10) times of attempts, the whole machine is automatically shut down.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization of those skilled in the art; when the technical solutions are contradictory or cannot be combined, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
Claims (3)
1. The utility model provides an stifled quick remove device that changes of electronic nail clippers which characterized in that: the motor is connected with the control unit through the motor driving unit, the current detection unit is connected with the control unit and the motor driving unit respectively, the current detection unit detects the working current change of the motor and transmits a signal to the control unit, and the control unit controls the forward rotation and the reverse rotation of the motor through the motor driving unit.
2. The electric nail clipper locked-rotation quick release device according to claim 1, characterized in that: no. 5 pin of the motor driving unit is connected with No. 9 pin of the control unit, and No. 1 pin and No. 4 pin of the motor driving unit are respectively connected with the positive electrode and the negative electrode of the motor.
3. The electric nail clipper locked-rotation quick release device according to claim 2, characterized in that: the current detection unit comprises a first resistor, a second resistor and a first capacitor, the first resistor and the first capacitor form an RC filter circuit, one end of the second resistor is connected with the No. 5 pin of the motor driving unit, and the other end of the second resistor is connected with the grounding end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220742822.7U CN217135152U (en) | 2022-03-31 | 2022-03-31 | Device for quickly relieving locked rotation of electric nail clippers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220742822.7U CN217135152U (en) | 2022-03-31 | 2022-03-31 | Device for quickly relieving locked rotation of electric nail clippers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217135152U true CN217135152U (en) | 2022-08-05 |
Family
ID=82647308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220742822.7U Active CN217135152U (en) | 2022-03-31 | 2022-03-31 | Device for quickly relieving locked rotation of electric nail clippers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217135152U (en) |
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2022
- 2022-03-31 CN CN202220742822.7U patent/CN217135152U/en active Active
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