CN209250418U - The handheld tool of power mechanism and the application power mechanism - Google Patents
The handheld tool of power mechanism and the application power mechanism Download PDFInfo
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- CN209250418U CN209250418U CN201821626884.1U CN201821626884U CN209250418U CN 209250418 U CN209250418 U CN 209250418U CN 201821626884 U CN201821626884 U CN 201821626884U CN 209250418 U CN209250418 U CN 209250418U
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- power mechanism
- motor
- control panel
- revolving speed
- pressure
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Abstract
A kind of power mechanism and the handheld tool using power mechanism, wherein power mechanism includes motor, worm screw, planetary gear set and control panel.Worm screw is driven by motor to rotate, and planetary gear set is engaged with worm screw and switch or operating condition of the control panel to control motor.
Description
Technical field
It is espespecially a kind of using motor as master the utility model relates to the handheld tool of power mechanism and the application power mechanism
Want the handheld tool of the power mechanism and application of the power resources power mechanism.
Background technique
In general, handheld tool currently on the market is mostly to directly drive transmission shaft and tool piece by brush motor (such as
Mill, drill bit etc.), however such configuration is very poor for the transfer efficiency of electric power, for example, use brush motor
The power conversion efficiency directly driven rough only 40%.In addition to this, the handheld tool of the prior art is upper and unstable in revolving speed control
Fixed, the torsion that can be provided is also very low.
Therefore, how to provide one kind has high power conversion efficiency, and can provide the power of stabilized (steady-state) speed and high torsion
The handheld tool of mechanism and the application power mechanism becomes industry project urgently to be resolved then.
Utility model content
For the variety of problems for solving the aforementioned prior art, a purpose of the utility model is to provide a kind of with height
Power conversion efficiency, and the handheld tool of the power mechanism and application of stabilized (steady-state) speed and high the torsion power mechanism can be provided.
In order to reach foregoing purpose, the power mechanism of the utility model is applied in a handheld tool, and power mechanism includes
Motor, worm screw, planetary gear set and control panel.Worm screw is driven by motor to rotate；Planetary gear set is engaged with worm screw；And control
Switch or operating condition of the making sheet to control motor.
In one embodiment, motor is Brushless DC motor.
In one embodiment, control panel has the function of Field orientable control.
In one embodiment, planetary gear set includes worm gear, sun gear, multiple external gears, outer gear ring and tooth rest,
Wherein, sun gear and worm gear are coaxial arrangement, and worm gear is engaged with worm screw, and wherein, sun gear is logical with multiple external gears
It crosses and is assembled in be meshed on tooth rest, tooth rest is to connect the transmission shaft outside one.
In one embodiment, control panel further includes temperature sensing module, to sense the temperature inside handheld tool.
In one embodiment, when the temperature that temperature sensing module is sensed is greater than a temperature default number, control panel
Issuing the first signal enables motor reduce revolving speed or shut down.
In one embodiment, control panel further includes pressure sensing module, the pressure born to sense handheld tool.
In one embodiment, when the pressure that pressure sensing module is sensed is greater than a first pressure default number, control
Making sheet, which issues second signal, enables motor reduce revolving speed or shut down.
In one embodiment, when the pressure that pressure sensing module is sensed is greater than a second pressure default number, control
Making sheet sending third signal enables motor be repeated and shuts down and start operating.
In one embodiment, control panel further includes revolving speed detecting module, and revolving speed detecting module controls the motor to feedback
Reach default revolving speed and differentiates the operating condition of the motor.
In one embodiment, power mechanism further includes inner housing, and worm screw and planetary gear set are arranged in inner housing
Portion.
The utility model also provides a kind of handheld tool, including any power mechanism of outer housing, above-described embodiment,
Control interface, transmission shaft, tool piece and power module.Power mechanism is arranged in outer housing；Control interface and power mechanism
Control panel be electrically connected, to input control signal；Transmission shaft and power mechanism interlock；Tool piece and transmission shaft linkage；With
And power module is to power supply needed for supplying power mechanism running.
Compared to the prior art, the power mechanism of the utility model includes motor, worm screw, planetary gear set and control
Plate provides power by motor, and worm screw has the function of switching kinetics direction, deceleration etc., and planetary gear set then equally has deceleration function
Energy and outstanding transmission efficiency, because of the characteristic of worm screw and planetary gear set, the power mechanism of the utility model has height
Power conversion efficiency and low speed output under have high torsion, and by control panel control motor operating condition it is suitable to provide
The revolving speed of various states is answered, Brushless DC motor can be also further used and has the control panel of Field orientable control function, then
Degree improves torsion, power conversion efficiency and more stable revolving speed.In addition to this, the control of the power mechanism of the utility model
Plate can also additional temp sensing module or pressure sensing module, reduce the risk of abnormality.Using the power of the utility model
The handheld tool of mechanism similarly has the above advantages, and sufficiently solves possessed disadvantage in the prior art.
Detailed description of the invention
Fig. 1 is the appearance diagram of the handheld tool of the utility model first embodiment.
Fig. 2 is the perspective view of the explosion of the power mechanism of the utility model second embodiment.
Fig. 3 is the functional block diagram of the control panel of the utility model 3rd embodiment.
Fig. 4 is the perspective view of the explosion of the handheld tool of the utility model fourth embodiment.
Symbol description:
10 motors
11 worm screws
12 planetary gear sets
120a worm gear
120b sun gear
121a, 121b, 121c, 121d external gear
122 outer gear rings
123 tooth rests
13 control panels
130 temperature sensing modules
131 pressure sensing modules
132 revolving speed detecting modules
14a, 14b inner housing
40a, 40b outer housing
41 power mechanisms
42a, 42b control interface
43 transmission shafts
44 tool pieces
45 power modules
Specific embodiment
Illustrate the embodiments of the present invention by particular specific embodiment below, those skilled in the art can be by
Content disclosed in the present specification understands other advantages and effect of the utility model easily.The utility model also can be by it
He is implemented or is applied different specific embodiments.
Referring to Fig. 1, Fig. 1 is the appearance diagram of the handheld tool of the utility model first embodiment.The utility model
Power mechanism apply in handheld tool as shown in Figure 1, furthermore, be using motor as major impetus source and
Convenient for the hand-held handheld tool used.
In general, handheld tool is often applied in the purposes of cleaning, grinding and waxing etc., by taking cleaning as an example, hand
The tool piece (such as brush) for holding tool can contact object and generate friction, therefore the power mechanism of handheld tool must provide enough
Torsion could have cleaning efficacy, this is also identical for using the handheld tool in other purposes.
Referring to Fig. 2, Fig. 2 is the perspective view of the explosion of the power mechanism of the utility model second embodiment.As shown, this
The power mechanism of utility model includes motor 10, worm screw 11, planetary gear set 12 and control panel 13.Motor 10 provides power,
Worm screw 11 is driven by motor 10 to rotate, and planetary gear set 12 is engaged with worm screw 11 and control panel 13 is to control motor 10
Switch or operating condition.
Worm screw 11 can be with switching kinetics direction, and compared to the configuration that existing handheld tool uses motor direct drive, this is practical
Motor 10 can be mounted on different directions by novel handheld tool, be relatively to be suitble to hand-held use by whole centre of gravity adjustment.In addition, phase
Compared with using the mode of gear mate gear to slow down, volume is more saved in such a way that 11 mate gear of worm screw slows down.
Planetary gear set 12 equally has deceleration, can further decrease the revolving speed of output, and have outstanding biography
Efficiency of movement, because of the characteristic of worm screw 11 and planetary gear set 12, the power mechanism of the utility model is imitated with high electrical power conversion
Rate and low speed output under have high torsion.
Control panel 13 be the circuit board with control function, the switch or operating condition of 13 controllable motor 10 of control panel,
Revolving speed including controlling motor 10, design of the prior art without control panel can only allow motor according to a default rotation speed operation, but this
The power mechanism of utility model can control the operating condition of motor 10 by control panel 13 to provide the revolving speed for adapting to various states.
For example, there can be delay startup design, be gradually increasing revolving speed when motor 10 is switched on rather than fierce acceleration, or setting multiple groups
Default revolving speed.
In further example, control panel 13 can also enable 10 reduction of speed of motor or stopping that tool piece is allowed to obtain bigger friction
Power, when handheld tool is used in cleaning or grinding, it is sometimes desirable to bigger frictional force to handle special status, and when tool piece by
Low speed or stopping can obtain the frictional force also bigger than persistently running at high speed when bringing into operation, therefore control horse by control panel 13
Reduction of speed, stopping and starting, which is repeated, up to 10 can allow handheld tool to obtain preferably cleaning or grainding capacity.
In one embodiment, motor 10 can be Brushless DC motor (BLDC).Brushless DC motor torsion under same volume
Higher than brush motor used in the prior art, Brushless DC motor is that (due to rotor motion, voltage is imported into counter electromotive force
Stator winding) trapezoidal shape mode, to detect the displacement on rotor, for create low torque fluctuation rotating excitation field.
In one embodiment, control panel 13 can have the function of Field orientable control (FOC, Field-Oriented
Control).Field orientable control function can be precisely controlled magnetic field size and direction, make that 10 torque of motor is steady, noise is small and effect
Rate is high, and the dynamic response with high speed.
In one embodiment, planetary gear set 12 may include worm gear 120a, sun gear 120b, multiple external gear 121a,
121b, 121c, 121d, outer gear ring 122 and tooth rest 123, wherein sun gear 120b and worm gear 120a is coaxial arrangement,
Worm gear 120a is engaged with worm screw 11, and sun gear 120b is by being assembled in multiple external gear 121a, 121b, 121c, 121d
To be meshed and tooth rest 123 is to connect the transmission shaft (repeating after appearance) outside one on tooth rest 123.Further come
It says, worm gear 120a and sun gear 120b is as power intake when operating, and outer gear ring 122 is fixed and 123 conduct of tooth rest
Power output end has the effect of reducing revolving speed.It should be noted that in this embodiment external gear 121a, 121b, 121c,
The quantity of 121d is four, and but not limited to this, can also have the external gear of different number in other embodiments.
Referring to Fig. 3, Fig. 3 is the functional block diagram of the control panel of the utility model 3rd embodiment.In one embodiment,
Control panel 13 may also include temperature sensing module 130, to sense the temperature inside the handheld tool.
In one embodiment, when the temperature that temperature sensing module 130 is sensed is greater than a temperature default number, control
Plate 13, which issues the first signal, enables motor 10 reduce revolving speed or shut down.When handheld tool upset operation internal temperature can on
It rises, motor 10 can be enabled to reduce revolving speed or stop fortune by 130 sensing temperature of temperature sensing module and before component is damaged
Turn.
In one embodiment, control panel 13 may also include pressure sensing module 131, be born to sense the handheld tool
Pressure.Specifically, tool piece can be pressed on other objects when using handheld tool, it is good clear in order to reach
Clean, grinding and other effects, user can also apply certain pressure.However when the pressure that handheld tool is born is excessive, having can
The component of handheld tool can be damaged.
In one embodiment, when the pressure that pressure sensing module 131 is sensed is greater than a first pressure default number,
Control panel 13, which issues second signal, enables motor 10 reduce revolving speed or shut down.The pressure mistake born in order to avoid handheld tool
Greatly, motor 10 can be enabled to reduce revolving speed or stop fortune by the sensing pressure of pressure sensing module 131 and before component is damaged
Turn.
In one embodiment, when the pressure that pressure sensing module 131 is sensed is greater than a second pressure default number,
The sending third signal of control panel 13 enables motor 10 be repeated and shuts down and start operating.As previously mentioned, when tool piece is by low
Speed stops that the frictional force also bigger than persistently running at high speed can be obtained when bringing into operation, therefore controls motor by control panel 13
10, which are repeated reduction of speed, stopping and starting, can allow handheld tool to obtain preferably cleaning or grainding capacity, and utilize setting second
The mode of pressure default number, allow user by hand-held tool apply it is stressed in a manner of trigger this function.
In another embodiment, control panel 13 also has the function of speed considerations, measures handheld tool revolving speed at any time, and carry out
Compensation.In other words, when pressure is less than aforementioned first pressure or second pressure default number, even handheld tool is in idle running shape
When state, control panel 13 still understands test constantly and compensates its revolving speed.
In another embodiment, control panel 13 may also include revolving speed detecting module 132, and revolving speed detecting module 132 is to return
Control motor 10 is awarded to reach setting speed and differentiate the operating condition of motor 10.When user's starting has this power mechanism
When handheld tool, revolving speed detecting module 132 can be according to setting one rotary speed setting signal of output to detect 10 revolving speed of motor, and obtains
One feedback signal.Not being when the feedback signal is feedback signal that revolving speed detecting module 132 is defaulted, then determines that current revolving speed becomes
Slowly.Accelerated at this point, control panel 13 can control motor 10, and revolving speed detecting module 132 can continue to capture real-time feedback
Signal, the feedback signal until smoothly capturing default just stop accelerating.When feedback signal of the acquisition to default, revolving speed is detectd
It surveys module 132 and determines that motor 10 has reached default revolving speed.In addition, working as the rotary speed setting signal that revolving speed detecting module 132 is exported
When having big difference with the feedback signal captured, the deadlock of motor 10 can be determined.
Referring to Fig. 2, in one embodiment, power mechanism may also include inner housing 14a, 14b, and worm screw 11 and row
Star gear set 12 is arranged inside inner housing 14a, 14b.Inner housing 14a, 14b can protect, be isolated or help fixed worm screw 11 with
And the equal components of planetary gear set 12.In this embodiment, inner housing 14a, 14b is to be combined to be formed and inner housing by two components
14a is also combined with outer gear ring 122, and but not limited to this, and in a further embodiment, inner housing can also have other formation side
Formula or in conjunction with other component.
Referring to Fig. 4, Fig. 4 is the perspective view of the explosion of the handheld tool of the utility model fourth embodiment.The utility model
A kind of handheld tool is also provided, including outer housing 40a, 40b, above-described embodiment one described in power mechanism 41, control interface
42a, 42b, transmission shaft 43, tool piece 44 and power module 45.
In one embodiment, power mechanism 41 is arranged in outer housing 40a, 40b.In this embodiment, outer housing 40a,
40b is to be combined to be formed by two components, and but not limited to this, and the setting of power mechanism 41 is combined and shape by outer housing 40a, 40b
At accommodating space in, and can be by other fixing piece combination power mechanisms 41 and outer housing 40a, 40b.
In one embodiment, the control panel 13 of control interface 42a, 42b and power mechanism 41 is electrically connected, to input control
Signal processed.For example, control interface 42a can be for turntable and control signal to input speed and control interface 42b can
For key and to the control signal of input switch, but not limited to this.It can lead between control interface 42a, 42b and control panel 13
Electric wire is crossed to be electrically connected.
In one embodiment, transmission shaft 43 and power mechanism 41 interlock and tool piece 44 is interlocked with transmission shaft 43.It passes
Moving axis 43 is used to the power that power mechanism 41 provides being sent to tool piece 44 to enable tool piece 44 rotate.In this embodiment,
Transmission shaft 43 is directly connected to the tooth rest 123 of power mechanism 41, and but not limited to this, in a further embodiment, transmission
Axis 43 can be indirectly connected with tooth rest 123 or be interlocked using other modes and power mechanism 41.
In one embodiment, tool piece 44 can be brush or mill, and but not limited to this, can replace depending on the application.
In one embodiment, power module 45 operates required power supply to supply power mechanism 41.For example, power supply
Module 45 can be rechargeable battery or to be connected with external power source power supply line, and but not limited to this.
In conclusion the power mechanism of the utility model includes motor, worm screw, planetary gear set and control panel, by horse
Up to power is provided, worm screw has the function of switching kinetics direction, deceleration etc., and planetary gear set is then equally with deceleration and excellent
Elegant transmission efficiency, because of the characteristic of worm screw and planetary gear set, the power mechanism of the utility model has high electrical power conversion
Efficiency and there is high torsion under low speed output, and adapts to various shapes by the operating condition of control panel control motor to provide
The revolving speed of state can also further use Brushless DC motor and have the control panel of Field orientable control function, improve turn round once again
Power, power conversion efficiency and more stable revolving speed.In addition to this, the control panel of the power mechanism of the utility model can also be attached
Add temperature sensing module or pressure sensing module, reduces the risk of abnormality.Using the hand of the power mechanism of the utility model
It holds tool similarly to have the above advantages, sufficiently solves possessed disadvantage in the prior art.
By the description of the above preferred embodiment, one skilled in the art is originally practical new when can more understand
The feature and spirit of type, only above-described embodiment only illustrates the principle and effect of the utility model, rather than to limit this reality
With novel.Therefore, the modification and variation that any pair of above-described embodiment carries out are without departing from the spirit of the utility model, and this is practical
Novel interest field should be as listed in the claims.
Claims (12)
1. a kind of power mechanism is applied in a handheld tool, which is characterized in that the power mechanism includes:
Motor；
Worm screw is driven by the motor and is rotated；
Planetary gear set is engaged with the worm screw, wherein the worm screw is also to switching kinetics direction；And
Control panel, to control the switch or operating condition of the motor.
2. power mechanism as described in claim 1, which is characterized in that the motor is Brushless DC motor.
3. power mechanism as claimed in claim 2, which is characterized in that the control panel has the function of Field orientable control.
4. power mechanism as described in claim 1, which is characterized in that the planetary gear set includes worm gear, sun gear, more
A external gear, outer gear ring and tooth rest, wherein the sun gear and the worm gear is are coaxially disposed, the worm gear and institute
Worm screw engagement is stated, and wherein, the sun gear is by being assembled on the tooth rest mutually to nibble with the multiple external gear
It closes, the tooth rest is to connect the transmission shaft outside one.
5. power mechanism as described in claim 1, which is characterized in that the control panel further includes temperature sensing module, to
Sense the temperature inside the handheld tool.
6. power mechanism as claimed in claim 5, which is characterized in that when the temperature that the temperature sensing module is sensed is big
When a temperature default number, the control panel, which issues the first signal, enables the motor reduce revolving speed or shut down.
7. power mechanism as described in claim 1, which is characterized in that the control panel further includes pressure sensing module, to
Sense the pressure that the handheld tool is born.
8. power mechanism as claimed in claim 7, which is characterized in that when the pressure that the pressure sensing module is sensed is big
When a first pressure default number, the control panel, which issues second signal, enables the motor reduce revolving speed or shut down.
9. power mechanism as claimed in claim 7, which is characterized in that when the pressure that the pressure sensing module is sensed is big
When a second pressure default number, the control panel sending third signal enables the motor be repeated and shuts down and start
Operating.
10. power mechanism as described in claim 1, which is characterized in that the control panel further includes revolving speed detecting module, described
Revolving speed detecting module controls the operating condition that the motor reaches default revolving speed and the differentiation motor to feedback.
11. power mechanism as described in claim 1, which is characterized in that the power mechanism further includes inner housing, and the snail
Bar and the planetary gear set are arranged inside the inner housing.
12. a kind of handheld tool characterized by comprising
Outer housing；
Power mechanism as described in any in claims 1 to 11, the power mechanism are arranged in the outer housing；
Control interface is electrically connected, to input control signal with the control panel of the power mechanism；
Transmission shaft is interlocked with the power mechanism；
Tool piece, with the transmission shaft linkage；And
Power module, to power supply needed for supplying the power mechanism running.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821626884.1U CN209250418U (en) | 2018-10-08 | 2018-10-08 | The handheld tool of power mechanism and the application power mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821626884.1U CN209250418U (en) | 2018-10-08 | 2018-10-08 | The handheld tool of power mechanism and the application power mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209250418U true CN209250418U (en) | 2019-08-13 |
Family
ID=67524597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821626884.1U Active CN209250418U (en) | 2018-10-08 | 2018-10-08 | The handheld tool of power mechanism and the application power mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209250418U (en) |
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2018
- 2018-10-08 CN CN201821626884.1U patent/CN209250418U/en active Active
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