CN217986061U - Signal generating part based on device inductance characteristic and electric tool thereof - Google Patents
Signal generating part based on device inductance characteristic and electric tool thereof Download PDFInfo
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- CN217986061U CN217986061U CN202222356325.6U CN202222356325U CN217986061U CN 217986061 U CN217986061 U CN 217986061U CN 202222356325 U CN202222356325 U CN 202222356325U CN 217986061 U CN217986061 U CN 217986061U
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Abstract
The utility model relates to the technical field of electric tools, in particular to a signal generating part based on device inductance characteristics and an electric tool thereof, which comprises a signal generating part arranged on the electric tool, wherein the signal generating part comprises a substrate, a manual executing part, a hollow inductor and a magnetizer, the manual executing part is movably connected on the substrate, fixed parts are arranged on the manual executing part and the substrate, two fixed parts generate movement which is relatively close to or relatively far away from through the movement of the manual executing part, and the hollow inductor and the magnetizer are respectively connected with the two fixed parts; the magnetic conductivity of the magnetizer material of the hollow inductor is changed, so that the inductance of the hollow inductor is changed, namely the hollow inductor and the magnetizer are separately installed, the inductance of the hollow inductor can be changed through the change of the relative distance between the magnetizer and the hollow inductor, and the change of the inductance is linear.
Description
Technical Field
The utility model belongs to the technical field of the electric tool technique and specifically relates to a signal generation spare and electric tool based on device inductance characteristic is related to.
Background
The blade position control of the existing electric pruning shears is mainly realized by using a Hall device induction magnet based on Hall effect. The working principle is as follows: the hall effect is essentially the deflection of moving charged particles in a magnetic field caused by the lorentz force. When charged particles (electrons or holes) are confined in a solid material, this deflection causes an accumulation of positive and negative charges in the direction of the vertical current and magnetic field, thus forming an additional transverse electric field, i.e. a hall field. The distance from the trigger magnet to the Hall device can be judged by detecting the size of the electromotive force of the electric field through the modern technology, so that the positions of the pruning shears trigger and the blade are correlated, and the position of the pruning shears blade is controlled.
But the current method of inducing a magnet in a Hall device to realize the position control of the blade of the electric pruning shears has the following defects: when the linear Hall device is installed after being selected and determined, the S pole or the N pole of the magnet needs to be determined, which can affect the production efficiency, and the reason is as follows: because the linear Hall effect IC responds in proportion to the magnetic flux density, the signal output range of the linear Hall device is from 0V to Vout, when no magnetic field exists, 1/2 of the analog output drive is Vout, the south and north magnetic poles generate unique voltages in an induction mode, the linearity of the induction magnet of the Hall device is influenced, if the position of the blade of the electric scissors is controlled in the induction magnet mode of the Hall device, the linearity processing needs an MCU processor to carry out complicated mathematical calculation, and the effect of free movement is difficult to achieve.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.
The utility model provides a signal produces piece based on device inductance characteristic, including installing the signal production piece on electric tool, the signal production piece includes the base plate, manual execution spare, hollow inductance and magnetizer, manual execution spare swing joint is on the base plate, all be provided with fixed position on manual execution spare and base plate, the removal that two fixed positions produced to be close to relatively or keep away from relatively through the activity of manual execution spare, hollow inductance and magnetizer are connected respectively in two fixed positions, the magnetizer inserts or keeps away from along hollow inductance middle part along the hollow inductance middle part through the removal that two fixed positions are close to relatively or keep away from relatively.
Preferably, the manual actuator comprises a movable part and a connecting part, the movable part is movably connected to the base plate through the connecting part, and the fixed part of the manual actuator is arranged on the movable part.
Preferably, a first return spring abutting on the movable member is supported on the substrate, and the movable member is returned by the first return spring.
Preferably, the connecting member is fixed on the substrate, the connecting member is provided with a rotating shaft structure, and the movable part rotates around the rotating shaft structure.
Preferably, the hollow inductor is fixedly connected to the fixed portion of the substrate, the magnetizer is in transmission connection with the fixed portion of the movable part, a guide sleeve is arranged on the substrate, the magnetizer is in guide connection with the guide sleeve, and the magnetizer is inserted into or far away from the middle portion of the hollow inductor through the guide sleeve.
Preferably, the magnetizer is connected to the fixed portion of the movable member in an abutting manner, a second return spring abutting against the guide sleeve is arranged on the magnetizer, and the magnetizer is reset through the second return spring.
Preferably, the fixed part is arranged at one end of the movable part, the middle part of the movable part is in running fit with the rotating shaft structure, and the other end of the movable part is used as a manual execution end.
Preferably, the connecting piece is fixed on the base plate, a guide hole structure is arranged on the connecting piece, the movable part is connected with the guide hole structure in a sliding mode, the upper end of the movable part serves as a manual execution end, and the fixed portion is arranged at the lower end of the movable part.
An electric tool comprises the signal generating part based on the inductance characteristic of the device, and further comprises a main body, wherein a working head is arranged at the front end of the main body, a circuit control unit is arranged inside the main body, the signal generating part is installed on the main body, and the signal generating part and the working head are both electrically connected with the circuit control unit.
Preferably, the substrate and the main body are integrally formed, the hollow inductor is arranged inside the main body, the magnetizer is arranged at one end of the manual actuating piece, the other end of the manual actuating piece is used as a manual actuating end and is exposed outside the main body, and the middle of the manual actuating piece is movably connected with the main body.
Compared with the prior art, the beneficial effects of the utility model are that:
the manual actuating part is driven manually, so that the manual actuating part can move by taking the position movably connected to the substrate as a reference, and the fixing parts on the manual actuating part can move to realize the movement that the two fixing parts are relatively close to or relatively far away from each other through the movement of the manual actuating part.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a first embodiment of a signal generating component in the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the signal generating element in the present invention;
fig. 3 is a schematic structural diagram of a third embodiment of a signal generating element in the present invention;
fig. 4 is a schematic structural diagram of a fourth embodiment of a signal generating element in the present invention;
fig. 5 is a schematic structural diagram of a fifth embodiment of a signal generating element in the present invention;
fig. 6 is a schematic structural view of the electric power tool of the present invention.
The reference numerals and names in the figures are as follows:
the device comprises a working head 1, a circuit control unit 2, a main body 3, a substrate 10, a first return spring 11, a guide sleeve 12, a manual actuator 20, a movable part 21, a connecting piece 22, a rotating shaft structure 23, a guide hole structure 24, an air-core inductor 30, a magnetizer 40 and a second return spring 41.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-6, in the embodiment of the present invention, the inductance is implemented by using the inductance induction magnetizer 40, and the structure of the inductance generally comprises the frame, the winding, the shielding cover, the packaging material, the magnetizer 40, etc. the present invention changes the inductance based on changing the relative position between the magnetizer 40 and the coil, when the magnetizer 40 is completely separated from the coil, the air is used as the medium of the magnetizer 40, and when the magnetizer 40 is slowly inserted into the gap in the middle of the coil, the inductance is changed along with the movement of the magnetizer 40; according to the above principle, the magnetizer 40 is fixed on the trigger of the pruning shears according to the drawing, and the coil is also fixed at a corresponding reasonable position; specifically, the utility model discloses a signal generation spare based on device inductance characteristic, including installing the signal generation spare on electric tool, the signal generation spare includes base plate 10, manual execution part 20, hollow inductance 30 and magnetizer 40, manual execution part 20 swing joint is on base plate 10, all be provided with fixed position on manual execution part 20 and base plate 10, the removal that is close to relatively or keeps away from is produced through manual execution part 20's activity to two fixed positions, hollow inductance 30 and magnetizer 40 are connected respectively in two fixed positions, magnetizer 40 inserts or keeps away from along hollow inductance 30 middle part through the removal that two fixed positions are close to relatively or keep away from relatively along hollow inductance 30 middle part.
Through the technical scheme, when in use, the manual actuator 20 is driven manually, so that the manual actuator 20 moves by taking the position of the manual actuator 20 movably connected to the base plate 10 as a reference, the manual actuator 20 comprises a movable part 21 and a connecting part 22, the movable part 21 is movably connected to the base plate 10 through the connecting part 22, the fixed part of the manual actuator 20 is arranged on the movable part 21, so that the fixed part on the manual actuator 20 is operated to realize the relative approaching or relative separating movement of the two fixed parts through the movement of the manual actuator 20, the movement of the manual actuator 20 generally adopts the modes of manual operation, twisting, pressing, pulling and the like, and in order to realize the self-resetting after the manual operation, the base plate 10 is provided with the first return spring 11 butted with the movable part 21, and the movable part 21 is reset through the first return spring 11; by utilizing the structural characteristics, the hollow-core inductor 30 and the magnetizer 40 are respectively connected to the two fixing parts, so that the magnetizer 40 is inserted into the middle of the hollow-core inductor 30 or far away from the middle of the hollow-core inductor 30 through the relative approaching or relative far movement of the two fixing parts, and the relative position of the magnetizer 40 and the hollow-core inductor 30 is changed, thereby changing the inductance.
Referring to fig. 1-2, for the first and second embodiments of the signal generating device of the present invention, the movable member 21 is rotatably connected to the base plate 10 to realize the movement, the connecting member 22 is fixed on the base plate 10, the connecting member 22 is provided with the rotating shaft structure 23, the movable member 21 rotates around the rotating shaft structure 23, the hollow inductor 30 and the magnetizer 40 can be respectively disposed on the movable member 21 and the base plate 10, and the hollow inductor 30 and the magnetizer 40 can also be respectively disposed on the base plate 10 and the movable member 21, which are set according to the actual requirements;
referring to fig. 3, for the third embodiment of the signal generating component of the present invention, when the movable component 21 moves due to the structure, the moving track of the fixed portion is an arc, which results in that the magnetizer 40 cannot be inserted into or kept away from the center of the hollow inductor 30 along the center of the hollow inductor 30, for this purpose, the hollow inductor 30 may be fixedly connected to the fixed portion of the substrate 10, the magnetizer 40 is drivingly connected to the fixed portion of the movable component 21, the substrate 10 is provided with the guide sleeve 12, the magnetizer 40 is connected to the guide sleeve 12 in a guiding manner, the magnetizer 40 is inserted into or kept away from the center of the hollow inductor 30 along the center of the hollow inductor 30 through the guide sleeve 12, and the structure of the guide sleeve 12 is utilized, so as to limit the moving direction of the magnetizer 40, and the magnetizer 40 and the movable component 21 are in a driving connection manner; if the pushing is driven by the pushing mode, a second return spring 41 butted with the guide sleeve 12 is arranged on the magnetizer 40, and the magnetizer 40 is reset by the second return spring 41; in addition, in order to make the manual actuator 20 simulate the structure of trigger pulling, the fixed part is arranged at one end of the movable part 21, the middle part of the movable part 21 is rotatably matched with the rotating shaft structure 23, and the other end of the movable part 21 is used as the manual actuating end, so that the manual actuator 20 is actuated in a manual pulling mode.
Referring to fig. 4-5, for the fourth and fifth embodiments of the signal generating device of the present invention, the movable part 21 is slidably connected to the substrate 10, the connecting part 22 is fixed on the substrate 10, the connecting part 22 is provided with the guiding hole structure 24, the movable part 21 is slidably connected to the guiding hole structure 24, the upper end of the movable part 21 is used as a manual actuating end, the fixing portion is arranged at the lower end of the movable part, similarly, the hollow inductor 30 and the magnetizer 40 can be respectively arranged on the movable part 21 and the substrate 10, and the hollow inductor 30 and the magnetizer 40 can also be respectively arranged on the substrate 10 and the movable part 21.
Referring to fig. 6, in practical application, according to the inductance calculation formula:
L＝N2μA/l
wherein, L is inductance, N is the number of turns of the coil, mu is the magnetic conductivity of the magnetizer, A is the cross-sectional area of the magnetizer, and L is the length of the coil; from the above formula, the inductance of the air-core inductor 30 is proportional to the permeability of the magnetizer material, and when the permeability of the magnetizer material increases, the inductance increases linearly. Conversely, when the magnetic conductivity of the magnetizer material is reduced, the inductance is reduced, and the reduction is also linear, and the magnetizer material is applied to an electric tool, the utility model discloses an adopt an electric tool, can be electric tools such as electric scissors, electric pliers, electric saw, including the above-mentioned a signal generation piece based on device inductance characteristic, still include main part 3, be provided with working head 1 at the front end of main part 3, be provided with circuit control unit 2 in the inside of main part 3, signal generation piece is installed on main part 3, and signal generation piece and working head 1 all are connected with circuit control unit 2 electricity; the substrate 10 is fixedly matched with the main body 3, or the substrate 10 is directly integrated with the main body 3, so that the hollow inductor 30 is arranged inside the main body 3, the magnetizer 40 is arranged at one end of the manual actuating part 20, the other end of the manual actuating part 20 is used as a manual actuating end and is exposed out of the main body 3, and the middle part of the manual actuating part 20 is movably connected with the main body 3.
Taking electric scissors as an example, a working head 1 of the electric scissors is an electric scissors head, a hollow inductor 30 is electrically connected to a circuit control unit 2 of the electric scissors, a magnetizer 40 is installed on a manual actuating part 20 of the electric scissors, the manual actuating part 20 of the electric scissors is a trigger structure, and when the manual actuating part 20 is in a loose state, the magnetizer 40 is separated from the inside of the hollow inductor 30;
when the manual actuator 20 is repeatedly executed, the magnetizer 40 is correspondingly inserted into and separated from the hollow inductor 30, and the speed of the magnetizer 40 moving in the hollow inductor 30 follows the speed of the manual actuator 20 for related actions such as locking and releasing.
To sum up, when the manual actuator 20 is in the process of being buckled and loosened, the whole magnetizer 40 performs corresponding inserting and separating movement inside the hollow inductor 30, and through the movement, the magnetic conductivity of the magnetizer material of the hollow inductor 30 is changed, so that the inductance of the hollow inductor 30 is changed, and the change of the inductance is linear.
Therefore, the utility model discloses an overcome current technical defect who uses hall element, separate hollow inductance 30 and magnetizer 40 and install, the relative distance through magnetizer 40 and hollow inductance 30 changes the purpose that can reach the inductance value that changes hollow inductance 30, based on this mode, just can be through the processing of corresponding signal conditioning circuit, the MCU is successful has detected the change of inductance value, perfect judgement current manual executive 20's operation action range, more important a bit, MCU can perfectly detect the relative distance of the relative hollow inductance 30 of magnetizer 40, each distance point can all map to current electric scissors's blade position, thereby the blade position that has realized electric scissors is corresponding with manual executive 20's position, the follow-up of blade position is moved.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (10)
1. The utility model provides a signal produces piece based on device inductance characteristic, including installing the signal and producing the piece on electric tool, a serial communication port, the signal produces the piece and includes the base plate, manual execution spare, hollow inductance and magnetizer, manual execution spare swing joint is on the base plate, all be provided with fixed position on manual execution spare and base plate, the removal that two fixed position produced to be close to relatively or keep away from relatively through the activity of manual execution spare, hollow inductance and magnetizer are connected respectively in two fixed position, the magnetizer inserts or keeps away from along hollow inductance middle part along the hollow inductance middle part through the removal that two fixed position are close to relatively or keep away from relatively.
2. The device inductance characteristic-based signal generating element as claimed in claim 1, wherein the manual actuating element comprises a movable part and a connecting element, the movable part is movably connected to the substrate through the connecting element, and a fixed part of the manual actuating element is arranged on the movable part.
3. A device-inductance-characteristic-based signal generating element as claimed in claim 2, wherein a first return spring is carried on the substrate in abutment with the movable element, the movable element being returned by the first return spring.
4. A device inductance characteristic-based signal generating element as claimed in claim 3, wherein the connecting member is fixed to the substrate, the connecting member is provided with a pivot structure, and the movable member is pivoted about the pivot structure.
5. The device inductance characterization-based signal generating element according to claim 4, wherein the hollow inductor is fixedly connected to a fixed portion of the substrate, the magnetizer is drivingly connected to a fixed portion of the movable member, a guide sleeve is disposed on the substrate, the magnetizer is connected to the guide sleeve in a guiding manner, and the magnetizer is inserted into or removed from a central portion of the hollow inductor through the guide sleeve.
6. The device according to claim 5, wherein the magnetizer is coupled to the fixed portion of the movable member in an abutting manner, and a second return spring is disposed on the magnetizer and abuts against the guide sleeve, and the magnetizer is returned by the second return spring.
7. The device inductance characteristic-based signal generating element as claimed in claim 4, wherein the fixed portion is disposed at one end of the movable member, a middle portion of the movable member is rotatably engaged with the rotation shaft structure, and the other end of the movable member serves as a manual actuating end.
8. The device inductance characteristic-based signal generating device as claimed in claim 3, wherein the connecting member is fixed on the substrate, the connecting member is provided with a guide hole structure, the movable member is slidably connected with the guide hole structure, an upper end of the movable member serves as a manual actuating end, and the fixed portion is disposed at a lower end of the movable member.
9. An electric tool, comprising the signal generating part based on the inductance characteristic of the device as claimed in any one of claims 1 to 8, characterized by further comprising a main body, a working head is arranged at the front end of the main body, a circuit control unit is arranged inside the main body, the signal generating part is mounted on the main body, and the signal generating part and the working head are both electrically connected with the circuit control unit.
10. The power tool of claim 9, wherein the base plate is integrally formed with the body, the hollow inductor is disposed inside the body, the magnetic conductor is disposed at one end of the manual actuator, the other end of the manual actuator serves as a manual actuating end and is exposed outside the body, and the middle of the manual actuator is movably connected to the body.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222356325.6U CN217986061U (en) | 2022-09-03 | 2022-09-03 | Signal generating part based on device inductance characteristic and electric tool thereof |
| EP23193445.6A EP4331787A3 (en) | 2022-09-03 | 2023-08-25 | Signal generator based on inductance characteristics of element, electric shearing tool, and shear opening degree control method for electric shearing tool |
| TW112132159A TW202410794A (en) | 2022-09-03 | 2023-08-25 | Signal generator based on inductance characteristics of element, electric shearing tool, and shear opening degree control method for electric shearing tool |
| KR1020230112051A KR20240032642A (en) | 2022-09-03 | 2023-08-25 | Signal generator based on inductance characteristics of element, electric shearing tool, and shear opening degree control method for electric shearing tool |
| JP2023138951A JP2024035813A (en) | 2022-09-03 | 2023-08-29 | Signal generator based on inductance characteristic of device, electric cutting tool, and cutting opening control method of electric cutting tool |
| US18/459,007 US20230403984A1 (en) | 2022-09-03 | 2023-08-30 | Signal generator based on inductance characteristics of element, electric shearing tool, and shear opening degree control method for electric shearing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222356325.6U CN217986061U (en) | 2022-09-03 | 2022-09-03 | Signal generating part based on device inductance characteristic and electric tool thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217986061U true CN217986061U (en) | 2022-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222356325.6U Active CN217986061U (en) | 2022-09-03 | 2022-09-03 | Signal generating part based on device inductance characteristic and electric tool thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217986061U (en) |
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2022
- 2022-09-03 CN CN202222356325.6U patent/CN217986061U/en active Active
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