CN108112356A - Electric tool - Google Patents
Electric tool Download PDFInfo
- Publication number
- CN108112356A CN108112356A CN201611067327.6A CN201611067327A CN108112356A CN 108112356 A CN108112356 A CN 108112356A CN 201611067327 A CN201611067327 A CN 201611067327A CN 108112356 A CN108112356 A CN 108112356A
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- CN
- China
- Prior art keywords
- speed
- motor
- electric tool
- regulating switch
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000010276 construction Methods 0.000 claims description 11
- 238000009333 weeding Methods 0.000 claims description 4
- 244000025254 Cannabis sativa Species 0.000 description 12
- 230000005611 electricity Effects 0.000 description 7
- 238000010009 beating Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
- A01D69/02—Driving mechanisms or parts thereof for harvesters or mowers electric
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Harvester Elements (AREA)
Abstract
The present invention relates to a kind of electric tool, including：Motor；Power supply circuit, the motor to be given to power, the power supply circuit includes；Controller, to control the rotating speed of the motor；Main switch is electrically connected with the controller, to control the rotating speed of the break-make of the power supply circuit and the adjustment motor；Speed-regulating switch, it is electrically connected with the controller, wherein described speed-regulating switch has very fast gear, when the speed-regulating switch is not in the very fast gear, the controller controls the motor with relatively low rotary speed working and passes through the rotating speed for operating the main switch and adjusting motor, when the speed-regulating switch is in the very fast gear by control, the controller controls the motor with relatively high rotary speed working.Speed-regulating switch is only when in very fast gear, and motor just with higher rotary speed working, and when speed-regulating switch is not in very fast gear, with relatively low rotary speed working realized and rotating speed is effectively adjusted according to operating mode, improved the effective rate of utilization of energy by motor.
Description
Technical field
The present invention relates to power tools technology field, more particularly to a kind of electric tool.
Background technology
Grass-mowing machine is a kind of common gardens type electric tool.Traditional grass-mowing machine speed governing uses normally closed, i.e. machine tune
If it can keep operating under this speed without artificially triggering machine when saving a certain speed.When in fast state, if real
Using the smaller usage time that can shorten machine is loaded, effective utility of laser power is relatively low on border.If grass-mowing machine uses direct current supply,
Then DC machine list bag usage time is short.
The content of the invention
Based on this, it is necessary to which speed governing, high electronic of effective utility of laser power can be carried out according to loading condition by providing one kind
Instrument.
A kind of electric tool, including：
Motor；
Power supply circuit, the motor to be given to power, the power supply circuit includes；
Controller, to control the rotating speed of the motor；
Main switch is electrically connected with the controller, to control the break-make of the power supply circuit and adjust the motor
Rotating speed；
Speed-regulating switch is electrically connected with the controller, wherein the speed-regulating switch has very fast gear, the speed-regulating switch
When being not in the very fast gear, the controller controls the motor with relatively low rotary speed working and passes through and operate the master
The rotating speed of switch adjustment motor, when the speed-regulating switch is in the very fast gear by control, the controller controls the electricity
Machine is with relatively high rotary speed working.
Above-mentioned electric tool, speed-regulating switch only when in very fast gear, motor just with higher rotary speed working, and
When speed-regulating switch is not in very fast gear, for motor with relatively low rotary speed working, the motor of such electric tool can be only in spy
Just with higher rotary speed working in the case of different heavy load, realize and rotating speed is effectively adjusted according to operating mode, improve the effective rate of utilization of energy.
In one embodiment, the speed-regulating switch further includes several constant speed gears, and the speed-regulating switch is in described
During constant speed gear, the electric tool controls the rotating speed of the motor by operating the main switch.
In one embodiment, when the speed-regulating switch switches between different constant speed gears, the main switch can be controlled
The scope for making the rotating speed of the motor is different.
In one embodiment, the main switch is knob-type stepless speed-regulating switch.
In one embodiment, the speed-regulating switch under external force can be by the constant speed gear switch to very fast shelves
Position, the electric tool also have an elastic construction, during external force revocation, the elastic construction offer make the speed-regulating switch by
Very fast gear switch is constant speed gear and is maintained at the elastic force of the constant speed gear.
In one embodiment, the electric tool is weeding apparatus.
In one embodiment, the electric tool is grass-mowing machine.
In one embodiment, the electric tool includes installing the motor casing of the motor, with motor casing being connected
Main handle, the main switch and speed-regulating switch are arranged at outside the main handle.
In one embodiment, the auxiliary-handle for holding is connected on the main handle.
In one embodiment, the end of the main handle is connected with battery pack.
In one embodiment, when the speed-regulating switch is in the very fast gear by control, the controller controls institute
Motor is stated to work with constant rotational speed.
In one embodiment, the constant rotational speed is the maximum output rotating speed of motor.
Description of the drawings
Fig. 1 is the structure diagram of the electric tool of one embodiment；
Fig. 2 is the partial cutaway schematic of the electric tool of one embodiment；
Fig. 3 is the schematic diagram of the control circuit of the electric tool of one embodiment.
100th, electric tool 110, motor casing 112, mounting portion
114th, switching part 120, motor 130, main handle
140th, auxiliary-handle 150, battery pack 162, controller
164th, main switch 166, speed-regulating switch 170, elastic construction
Specific embodiment
In order to which the purpose of the present invention, technical solution and advantage is more clearly understood, with reference to the accompanying drawings and embodiments,
The present invention will be described in further detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention,
Do not limit the present invention.
The present invention is directed to propose a kind of electric tool, it can be achieved that effectively adjust the rotating speed of machine according to operating mode, improves energy
Effective rate of utilization.When electric tool is is equipped with the hand-held of dc-battery bag or self-traveling electric tool, due to energy
Amount is effectively used, and avoids unnecessary waste, achievees the purpose that improve single battery bag usage time.
The preferred embodiment of detailed description electric tool of the present invention below in conjunction with the accompanying drawings.
Join Fig. 1, illustrate the electric tool 100 of one embodiment of the invention.Wherein electric tool 100 is with weeding apparatus
Exemplified by, specifically illustrated by taking grass-mowing machine as an example.Electric tool 100 can also be other kinds of electric tool, such as
Can be other kinds of weeding apparatus, such as self-traveling grass trimmer.Electric tool 100 can also be cutting class instrument, such as
Electric circular saw.
Electric tool 100 includes motor casing 110, the motor 120 for being installed on motor casing 110, the master being connected with motor casing 110
Handle 130, the auxiliary-handle 140 for being connected to main handle 130, the battery pack 150 for being connected to 130 end of main handle.
Motor casing 110 includes the switching part 114 for accommodating the mounting portion 112 of motor 120 and being connected with mounting portion 112.Main hand
Handle 130 is mounted on switching part 114.Switching part 114 and 112 setting at an acute angle of mounting portion, make main handle 130 and mounting portion 112
Setting at an acute angle, person easy to operation grasp main handle 130, beat the grass operation when operation facility, meet ergonomics.
Motor 120 is to outputting rotary power, drive cutting element work.Cutting element is generally rope of beating the grass.Motor 120
Drive, which beats the grass to restrict, to rotate at a high speed, the grass cut using the high-speed rotating power cut needs of rope of beating the grass.
Auxiliary-handle 140 is installed on main handle 130, substantially u-shaped, and both ends are connected to main handle 130.Use electric tool
100 beat the grass operation when, one hand of operator holds main handle 130, and another hand holds auxiliary-handle 140, ensures what is managed
Stability, and then ensure that operation of beating the grass smoothly completes.
Battery pack 150 is mounted on 130 end of main handle, and electric tool 100 is allow to depart from external power supply, expands operation model
It encloses.For powering to motor 120, the connection circuit of power supply circuit passes through battery pack 150 from the inside of main handle 130.Electronic work
The outside of tool 100 does not have numerous and diverse circuit, and one side appearance is clean and tidy, on the other hand avoids the influence of circuit in operation process yet,
It will not be such as suspended to by branch sundries, in addition, also avoiding the trouble of the circuit of winding exposure when electric tool 100 stores.Electricity
Battery in pond bag 150 can be lithium electricity, ickel-cadmium cell etc..
Join Fig. 2 and Fig. 3, with reference to Fig. 1, the power supply electricity powered to motor 120 is provided between battery pack 150 and motor 120
Road.Power supply circuit includes controller 162, main switch 164 and speed-regulating switch 166.Controller 162 and motor 120 and battery pack 150
Electrical connection, to control the rotating speed of motor 120.Main switch 164 is electrically connected with controller 162, for controlling entire power supply circuit
Break-make, while also to match somebody with somebody hop controller 162 adjust motor 120 rotating speed.
Join Fig. 3, speed-regulating switch 166 is electrically connected with controller 162.Wherein, speed-regulating switch 166 includes several constant speed gears
D and very fast gear S.In the present embodiment, illustrated, but needed exemplified by two constant speed gears D1, D2 are set
The quantity of bright constant speed gear D is not limited to two, according to demand, can set 2 or more.
Speed-regulating switch 166 can switch between two constant speed gears D1, D2, when speed-regulating switch 166 is in constant speed gear
During D2, under external force, speed-regulating switch 166 can also be switched to very fast gear S by constant speed gear D2.
Join Fig. 2, also there is elastic construction 170 inside the main handle 130 of electric tool 100.Speed-regulating switch 166 can also be by
, it is necessary to overcome the resistance of elastic construction 170 and be always maintained at so that speed-regulating switch when constant speed gear D2 switches to very fast gear S
166 maintain very fast gear S.When external force cancels, the offer of elastic construction 170 makes speed-regulating switch 166 be switched to by very fast gear S
Constant speed gear D2 and the elastic force for being maintained at constant speed gear D2.Therefore, speed-regulating switch 166 can be only switched to very fast when needed
Gear S.The elastic elements such as spring, spring washer may be employed in elastic construction 170.
Electric tool 100 is started shooting after work, and speed-regulating switch 166 is in constant speed gear D1 or constant speed gear D2.Controller 162
Control motor 120 is with relatively low rotary speed working and passes through the rotating speed for operating main switch 164 and adjusting motor 120.Main switch at this time
164 in addition to playing the role of on-off switch, can also be adjusting the rotating speed of motor 120.Main switch 164 can be knob
Formula stepless speed-regulating switch.When speed-regulating switch 166 is switched in very fast gear S, controller 162 controls motor 120 with opposite
High rotary speed working, main switch 164 only play on-off switch, do not play speed governing.
When speed-regulating switch 166 switches between different constant speed gears, main switch 164 can control the rotating speed of motor 120
Scope is different.Specifically, when speed-regulating switch 166 is in constant speed gear D1, main switch 164 controls electricity between 0~5500 rev/min
The rotating speed of machine 120.When speed-regulating switch 166 is in constant speed gear D2, main switch 164 controls motor between 0~6500 rev/min
120 rotating speed.
When speed-regulating switch 166 is in very fast gear S, main switch 164 only plays on-off switch, does not play speed governing.
Controller 162 controls motor 120 to be higher than rotary speed working of the speed-regulating switch 166 in constant speed gear.In this example, speed governing is opened
When closing 166 in very fast gear S, controller 162 controls motor 120 with 8000 revs/min of work of constant rotational speed.The constant rotating speed
It can be the maximum output rotating speed of motor.
Speed-regulating switch 166 is in very fast gear S, and main switch 164 can also both play on-off switch, also plays speed governing work
With.At this point, the rotating speed of motor 120 is higher than rotary speed working of the speed-regulating switch 166 in constant speed gear, it is also possible in high rotating speed model
Interior fine tuning is enclosed, such as the rotating speed of motor 120 is finely tuned between 7000 revs/min~8000 revs/min.
When operation is beaten the grass in the execution of electric tool 100, the operation on the lawn that density is low or height is low, electric at this time after start
Power driven tools 100 load relatively low, load as normal load.Speed-regulating switch 166 is adjusted by main switch 164 in constant speed gear D
The rotating speed of motor 120 adapts to the requirement of 120 adjustment of rotational speed of motor under normal load.Under normal load grass condition, motor 120 turns
Fast general requirement is at 5000 revs/min~6000 revs/min, output power about 400W.
When careless condition is switched to density height, withered grass, top grass when severe careless condition by the lawn that density is low or height is low, electronic work
100 load increase of tool, loads badly to load.If still being cut with more original cutting speed, cutting efficiency is slow.Therefore,
At this point, speed-regulating switch 166 is switched to very fast gear S by constant speed gear D and is maintained at very fast gear S, controller 162 controls electricity
With higher rotary speed working, motor 120 is maintained under high-power state and works machine 120, adapts to the careless condition that load becomes larger, and ensures electricity
The cutting efficiency of power driven tools.Under the severe careless condition of load, the rotating speed of motor 120 is generally required at 7500 revs/min~8000 revs/min,
Output power about 700W.
When the careless condition end of job badly loaded, the action that speed-regulating switch 166 is made to be maintained at very fast gear S is cancelled, it is very fast
Gear S automatically switches to constant speed gear D under the action of elastic construction 170, then motor 120 will not be with high rotating speed, high power shape
State works, and avoids causing the wasting of resources under low-load operating mode.
The electric tool 100 of the present embodiment, speed-regulating switch 166 is only when in very fast gear S, and 120 ability of motor is with more
High rotary speed working, and when speed-regulating switch 166 is not in very fast gear S, motor 120 is so electric with relatively low rotary speed working
The motor 120 of power driven tools 100 can be realized and effectively adjusted according to operating mode only in special heavy load just with higher rotary speed working
Rotating speed is saved, improves the effective rate of utilization of energy, improves the usage time of battery pack.
In the present embodiment, speed-regulating switch 166 and auxiliary-handle 140 are located at the same side of main handle 130, the then position of main switch 164
In the opposite side of main handle 130.When making the speed-regulating switch 166 overcome the resistance of elastic construction 170 to be maintained at very fast gear S compared with
For convenience.
Each technical characteristic of above example can be combined arbitrarily, to make description succinct, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield is all considered to be the scope of this specification record.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that come for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (12)
1. a kind of electric tool, which is characterized in that including：
Motor；
Power supply circuit, the motor to be given to power, the power supply circuit includes；
Controller, to control the rotating speed of the motor；
Main switch is electrically connected with the controller, to control the rotating speed of the break-make of the power supply circuit and the adjustment motor；
Speed-regulating switch is electrically connected with the controller, wherein the speed-regulating switch has very fast gear, the speed-regulating switch is not located
When the very fast gear, the controller controls the motor with relatively low rotary speed working and passes through and operate the main switch
Adjust the rotating speed of motor, the speed-regulating switch by control in the very fast gear when, the controller control the motor with
Relatively high rotary speed working.
2. electric tool according to claim 1, which is characterized in that the speed-regulating switch further includes several constant speed shelves
Position, when the speed-regulating switch is in the constant speed gear, the electric tool controls the motor by operating the main switch
Rotating speed.
3. electric tool according to claim 2, which is characterized in that the speed-regulating switch is cut between different constant speed gears
When changing, the main switch can control the scope of the rotating speed of the motor different.
4. electric tool according to claim 2, which is characterized in that the main switch is knob-type stepless speed-regulating switch.
5. electric tool according to claim 2, which is characterized in that the speed-regulating switch under external force can be by described
To very fast gear, the electric tool also has elastic construction for constant speed gear switch, when the external force cancels, the elastic construction
Offer makes the speed-regulating switch by very fast gear switch for constant speed gear and is maintained at the elastic force of the constant speed gear.
6. electric tool according to claim 1, which is characterized in that the electric tool is weeding apparatus.
7. electric tool according to claim 1, which is characterized in that the electric tool is grass-mowing machine.
8. electric tool according to claim 7, which is characterized in that the electric tool includes installing the motor
Motor casing, the main handle that is connected with motor casing, the main switch and speed-regulating switch are arranged at outside the main handle.
9. electric tool according to claim 7, which is characterized in that the assistant for holding is connected on the main handle
Handle.
10. electric tool according to claim 7, which is characterized in that the end of the main handle is connected with battery pack.
11. electric tool according to claim 1, which is characterized in that the speed-regulating switch is by control in described very fast
During gear, the controller controls the motor to work with constant rotational speed.
12. electric tool according to claim 11, which is characterized in that the constant rotational speed turns for the maximum output of motor
Speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611067327.6A CN108112356A (en) | 2016-11-28 | 2016-11-28 | Electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611067327.6A CN108112356A (en) | 2016-11-28 | 2016-11-28 | Electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108112356A true CN108112356A (en) | 2018-06-05 |
Family
ID=62224692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611067327.6A Pending CN108112356A (en) | 2016-11-28 | 2016-11-28 | Electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108112356A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110739890A (en) * | 2018-07-02 | 2020-01-31 | 苏州宝时得电动工具有限公司 | speed control method of electric tool and electric tool |
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|---|---|---|---|---|
| GB2047427A (en) * | 1979-04-26 | 1980-11-26 | Kubota Ltd | Automatic control of speed |
| US5163273A (en) * | 1991-04-01 | 1992-11-17 | Wojtkowski David J | Automatic lawn mower vehicle |
| DE4235098A1 (en) * | 1992-10-17 | 1994-04-21 | Schmetz Roland Dipl Wirtsch In | Device for handling materials e.g. separating potatoes from earth - or mixing feedstuffs, having cylindrical container mounted on tractor with cover which pivots about same axis as container. |
| JP2006217843A (en) * | 2005-02-09 | 2006-08-24 | Masaaki Iwatani | Electric bush cutter |
| JP2007116957A (en) * | 2005-10-26 | 2007-05-17 | Matsushita Electric Works Ltd | Lawn mower |
| CN101377229A (en) * | 2007-08-29 | 2009-03-04 | 苏州宝时得电动工具有限公司 | Speed changing tool and speed changing control method thereof |
| CN201222872Y (en) * | 2008-07-23 | 2009-04-22 | 上海沃施园艺用品制造有限公司 | Frequency-conversion electric lawn trimmer |
| CN101867338A (en) * | 2010-05-19 | 2010-10-20 | 南京德朔实业有限公司 | Speed control system of brush cutter and control method thereof |
| CN202517460U (en) * | 2012-03-13 | 2012-11-07 | 庆腾精密科技股份有限公司 | Electric tool capable of manually and automatically changing speed |
| CN205232798U (en) * | 2015-01-23 | 2016-05-18 | 株式会社牧田 | An edge -trimmer |
| CN207022560U (en) * | 2016-11-28 | 2018-02-23 | 苏州宝时得电动工具有限公司 | Electric tool |
-
2016
- 2016-11-28 CN CN201611067327.6A patent/CN108112356A/en active Pending
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|---|---|---|---|---|
| GB2047427A (en) * | 1979-04-26 | 1980-11-26 | Kubota Ltd | Automatic control of speed |
| US5163273A (en) * | 1991-04-01 | 1992-11-17 | Wojtkowski David J | Automatic lawn mower vehicle |
| DE4235098A1 (en) * | 1992-10-17 | 1994-04-21 | Schmetz Roland Dipl Wirtsch In | Device for handling materials e.g. separating potatoes from earth - or mixing feedstuffs, having cylindrical container mounted on tractor with cover which pivots about same axis as container. |
| JP2006217843A (en) * | 2005-02-09 | 2006-08-24 | Masaaki Iwatani | Electric bush cutter |
| JP2007116957A (en) * | 2005-10-26 | 2007-05-17 | Matsushita Electric Works Ltd | Lawn mower |
| CN101377229A (en) * | 2007-08-29 | 2009-03-04 | 苏州宝时得电动工具有限公司 | Speed changing tool and speed changing control method thereof |
| CN201222872Y (en) * | 2008-07-23 | 2009-04-22 | 上海沃施园艺用品制造有限公司 | Frequency-conversion electric lawn trimmer |
| CN101867338A (en) * | 2010-05-19 | 2010-10-20 | 南京德朔实业有限公司 | Speed control system of brush cutter and control method thereof |
| JP3168218U (en) * | 2010-05-19 | 2011-06-02 | チェルボン リミテッド | Brush cutter speed control system |
| CN202517460U (en) * | 2012-03-13 | 2012-11-07 | 庆腾精密科技股份有限公司 | Electric tool capable of manually and automatically changing speed |
| CN205232798U (en) * | 2015-01-23 | 2016-05-18 | 株式会社牧田 | An edge -trimmer |
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Non-Patent Citations (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110739890A (en) * | 2018-07-02 | 2020-01-31 | 苏州宝时得电动工具有限公司 | speed control method of electric tool and electric tool |
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Application publication date: 20180605 |