CN208019534U - Electric cutting tool - Google Patents
Electric cutting tool Download PDFInfo
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- CN208019534U CN208019534U CN201820355377.2U CN201820355377U CN208019534U CN 208019534 U CN208019534 U CN 208019534U CN 201820355377 U CN201820355377 U CN 201820355377U CN 208019534 U CN208019534 U CN 208019534U
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- cutting tool
- cutting part
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Abstract
The utility model is related to a kind of electric cutting tools.It includes：Relative position detector, the relative position between cutting part for detecting object and electric cutting tool to be cut；Control assembly generates driving instruction according to relative position；Driving device drives cutting part according to driving instruction.According to the electric cutting tool of the utility model embodiment; the relative position between the cutting part of object and electric cutting tool to be cut can be detected by relative position detector; driving instruction is generated according to relative position; and cutting part is driven by driving device according to driving instruction; to accurately detect it is counter kick action and in time progress it is counter kick protection, improve the safety of electric cutting tool.
Description
Technical field
The utility model is related to power tools technology field more particularly to a kind of electric cutting tools.
Background technology
Electric tool is using a kind of relatively broad power tool holding with a hand operation.Electric tool generally comprises biography
Dynamic component (such as reciprocator), Power Component (such as direct current generator or alternating current generator), Power Supply Assembly (such as battery), control
Component (such as switch, motor control, lithium electrical protective device etc.), casing (for coating aforementioned components), and it is set to casing
On grip device (such as handle, auxiliary-handle) etc..Electric tool usually provides electricity by loading Power Supply Assembly (such as battery)
Stream, driving Power Component (such as motor) rotate, and then drive work operations head to carry out operation by transmission component.
Operating personnel operate electric cutting tool such as electric chain saw during, the cutting part of electric cutting tool with
Be easy to happen when object to be cut contact it is counter kick action, operating personnel's injury may be caused.In the related art, it is therefore possible to use three
The detection of the components such as axis accelerometer is counter to kick action, and progress is mechanically counter to kick protection, but the anti-reliability for kicking protected mode is relatively low.
Utility model content
In view of this, the utility model proposes a kind of electric cutting tool, it can realize that the counter of high reliability kicks protection,
Improve the safety of electric cutting tool.
One side according to the present utility model provides a kind of electric cutting tool, including：
Relative position detector is opposite between object to be cut and the cutting part of the electric cutting tool for detecting
Position；
Control assembly generates driving instruction according to the relative position；
Driving device drives the cutting part according to the driving instruction.
In one possible implementation, the control assembly includes：
First judgment module, for according to the relative position, judging that the position between object and cutting part to be cut is closed
System.
In one possible implementation, the control assembly further includes：
First directive generation module, for when in first time threshold, the position relationship from not in contact with becoming contacting,
Again from contact become not in contact with when, generate the first driving instruction；
The driving device makes the cutting part brake according to the first driving instruction.
In one possible implementation, the electric cutting tool further includes：
Current sensing means, the electric current for detecting the driving device；
The control assembly is additionally operable to, and according to the relative position and the electric current, generates the driving instruction.
In one possible implementation, the control assembly further includes：
Second judgment module, for judging the electric current for no-load current or load current.
In one possible implementation, the control assembly further includes：
Second directive generation module, for when in second time threshold, the position relationship from not in contact with becoming contacting,
Become again from contact not in contact with and the electric current becomes load current from no-load current, and becomes no-load current from load current
When, generate the second driving instruction；
The driving device makes the cutting part brake according to the second driving instruction.
In one possible implementation, the control assembly further includes：
Object to be cut, and the electricity is not detected for working as the relative position detector in third directive generation module
When stream is load current, third driving instruction is generated；
The driving device according to the third driving instruction, reduce actuating speed or in a pulsed fashion to cutting part into
Row driving.
In one possible implementation, the control assembly further includes：
Object to be cut, and the electricity is not detected for working as the relative position detector in 4th directive generation module
When stream is no-load current, the 4th driving instruction is generated；
The driving device reduces actuating speed or the cutting part is made to brake according to the 4th driving instruction.
In one possible implementation, the position relationship include object to be cut with the electric cutting tool it
Between distance whether be more than threshold value；
The control assembly further includes：
5th directive generation module, for being no-load current when the distance is more than the first distance threshold and the electric current
When, generate the 5th driving instruction
The driving device drives cutting part according to the 5th driving instruction, with the first actuating speed, and described first drives
Dynamic speed is less than the operating rate of the cutting part.
In one possible implementation, the control assembly further includes：
6th directive generation module, for when the distance is less than or equal to the first distance threshold, generating the 6th driving
Instruction
The driving device drives cutting part according to the 6th driving instruction, with operating rate.
In one possible implementation, the control assembly further includes：
7th directive generation module, for when in third time threshold, the position relationship from contact become not in contact with,
And electric current generates the 7th driving instruction when becoming no-load current from load current；
The driving device reduces actuating speed according to the 7th driving instruction, or the cutting part is made to brake.
In one possible implementation, the relative position detector includes the first detector and the second detector；
First detector and second detector are located at the cut surface both sides of the cutting part.
In one possible implementation, the electric cutting tool further includes：
Motion sensor, the direction of motion for detecting the cutting part；
Current sensing means, the electric current for detecting driving device,
The control assembly further includes：
Second judgment module, for judging the electric current for load current or no-load current；
8th directive generation module, when the electric current be load current, and first detector and it is described second detection
When object to be cut is not detected in detector in device, in front of the direction of motion of the cutting part, generates the 8th driving and refer to
It enables,
The driving device reduces actuating speed or is carried out in a pulsed fashion to cutting part according to the 8th driving instruction
Driving.
In one possible implementation,
The main body of the cutting part and electric cutting tool connects；
The relative position detector includes range sensor；
The range sensor is located at the front of the main body, and sensing direction direction is parallel with the length direction of cutting part
Direction.
In one possible implementation, the electric cutting tool is chain saw.
In one possible implementation, the relative position detector is infrared sensor, laser sensor, ultrasound
It is one or more in wave sensor and visual sensor.
According to the electric cutting tool of the utility model various aspects, object to be cut can be detected by relative position detector
Relative position between body and the cutting part of electric cutting tool generates driving instruction according to relative position, and is referred to according to driving
Enable by driving device drive cutting part, to accurately detect it is counter kick action and in time progress it is counter kick protection, improve electronic cut
Cut the safety of tool.
According to below with reference to the accompanying drawings to detailed description of illustrative embodiments, the other feature and aspect of the utility model will
It becomes apparent.
Description of the drawings
Including in the description and the attached drawing of a part for constitution instruction and specification together illustrate this practicality newly
Exemplary embodiment, feature and the aspect of type, and for explaining the principles of the present invention.
Fig. 1 shows a kind of block diagram of electric cutting tool according to one embodiment of the utility model.
Fig. 2 shows the schematic diagrames according to a kind of electric cutting tool of the utility model one embodiment.
Fig. 3 a- Fig. 3 e respectively illustrate according to the cutting part of electric cutting tool of one embodiment of the utility model a kind of with
The schematic diagram of position relationship between object to be cut.
Fig. 4 shows a kind of block diagram of electric cutting tool according to one embodiment of the utility model.
Specific implementation mode
The various exemplary embodiments, feature and aspect of the utility model are described in detail below with reference to attached drawing.In attached drawing
Identical reference numeral indicates functionally the same or similar element.Although the various aspects of embodiment are shown in the accompanying drawings,
It is unless otherwise indicated, it is not necessary to attached drawing drawn to scale.
Dedicated word " exemplary " means " being used as example, embodiment or illustrative " herein.Here as " exemplary "
Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.
In addition, in order to better illustrate the utility model, given in specific implementation mode below numerous specific
Details.It will be appreciated by those skilled in the art that without certain details, the utility model can equally be implemented.In some realities
In example, method well known to those skilled in the art, means, element and circuit are not described in detail, in order to highlight this reality
With novel purport.
Fig. 1 shows a kind of block diagram of electric cutting tool according to one embodiment of the utility model.Fig. 2 shows bases
A kind of schematic diagram of electric cutting tool of one embodiment of the utility model.As shown in Figure 1, the electric cutting tool includes：
Relative position detector 11, for detecting between object 14 to be cut and the cutting part 15 of the electric cutting tool
Relative position；
Control assembly 12 generates driving instruction according to the relative position；
Driving device 13 drives the cutting part 15 according to the driving instruction.
Embodiment according to the present utility model detects object and electric cutting tool to be cut by relative position detector
Cutting part between relative position, driving instruction is generated according to relative position, and is driven by driving device according to driving instruction
Dynamic cutting part, to accurately detect it is counter kick action and progress is counter in time kicks protection, improve the safety of electric cutting tool.
Fig. 2 shows the schematic diagrames according to a kind of electric cutting tool of the utility model one embodiment.As shown in Fig. 2,
Electric cutting tool can have main body 10, cutting part 15 that can be connect with main body 10, and relative position detector 11 may include
Range sensor 111 and 112 positioned at the front of main body 10.The sensing direction of range sensor 111 and 112 can towards with cutting
The parallel direction of the length direction in portion 15, is respectively formed sense wire as shown in Figure 2 (or sensing region) 113 and 114.In this way,
When object 14 to be cut enters sensing region, range sensor 111 and 112 can sense object to be cut 15 and itself it
Between distance, so as to detect the relative position between object 14 and cutting part 15 to be cut.The utility model is to opposite
The installation site and particular number of position detector 11 are not restricted.
In one possible implementation, electric cutting tool may include chain saw, can also be other kinds of electricity
Dynamic cutting tool, the utility model are not restricted the concrete type of electric cutting tool.
In one possible implementation, relative position detector is infrared sensor, laser sensor, ultrasonic wave biography
It is one or more in sensor and visual sensor.The utility model does not make the concrete type and distance measuring method of position detector
Limitation.
In one possible implementation, which further includes that the control assembly 12 of installation in the main body 10 is filled with driving
Set 13.Wherein, control assembly 12 can be realized by special hardware circuit, can also by general procedure hardware (such as CPU,
Microcontroller, field programmable logic device FPGA etc.) combine executable logical order to realize, to execute the work of control assembly 12
Process, wherein executable logical order can be based on prior art means and realize.
In one possible implementation, control assembly 12 can be according to the phase between object 14 to be cut and cutting part 15
To position, driving instruction is generated；Driving device 13 can drive cutting part 15 according to driving instruction.
Fig. 3 a- Fig. 3 e respectively illustrate according to the cutting part of electric cutting tool of one embodiment of the utility model a kind of with
The schematic diagram of position relationship between object to be cut.
In one possible implementation, control assembly 12 may include：
First judgment module, for according to relative position, judging that the position between object 14 and cutting part 15 to be cut is closed
System.
For example, control assembly 12 can be judged object 14 to be cut and cut by the first judgment module according to relative position
Cut the position relationship between portion 15.Wherein it is possible to it is preset with the first distance threshold L, such as can be by range sensor 111
It is set as the first distance threshold L with the horizontal distance of 112 sensing the feedback of position to the front end of cutting part 15.Work as range sensor
111 and 112 are not detected object 14 (as shown in Figure 2) to be cut；Or one in range sensor 111 and 112 does not detect
To object 14 to be cut, another detects that object 14 to be cut is more than the first distance threshold L with sensing the feedback of position distance；Or distance
Sensor 111 and 112 detects that object 14 to be cut is more than the first distance threshold L (such as Fig. 3 a institutes at a distance from sensing the feedback of position
Show) when, it can be determined that position relationship is object 14 to be cut not in contact with cutting part 15.
When one in range sensor 111 and 112 detects that object 14 to be cut is less than first with sensing the feedback of position distance
Distance threshold L, another is not detected object 14 (as shown in Figure 3b) to be cut or detects object 14 to be cut and sensing position
When setting distance more than the first distance threshold L, it can be determined that position relationship is that object 14 to be cut contacts cutting part 15.
In one possible implementation, the control assembly further includes：
First directive generation module, for when in first time threshold, the position relationship from not in contact with becoming contacting,
Again from contact become not in contact with when, generate the first driving instruction；
The driving device makes the cutting part brake according to the first driving instruction.
For example, if within the short time (first time threshold), the position of object 14 to be cut and cutting part 15 is closed
System becomes from not in contact with becoming contacting, and from contact not in contact with it may be considered that electric cutting tool has occurred and counter kicks action, need
It is counter to be kicked protection.
In this case, the first directive generation module of control assembly can generate the first driving instruction, and driving device can
According to the first driving instruction, cutting part is made to brake, to avoid damaging to operating personnel.The first time threshold can be set
It is set to such as 2s.It should be appreciated that the first time threshold may be set according to actual conditions, the utility model does not limit this
System.
Fig. 4 shows a kind of block diagram of electric cutting tool according to one embodiment of the utility model.As shown in figure 4,
In a kind of possible realization method, which may also include：
Current sensing means 16, the electric current for detecting the driving device；
The control assembly 12 is additionally operable to, and according to the relative position and the electric current, generates the driving instruction.
In one possible implementation, control assembly further includes：Second judgment module, for judging that the electric current is
No-load current or load current.
For example, which may also include current sensing means 16, which can connect
It is connected to driving device 13, to detect the electric current of driving device 13.Wherein, control assembly can be judged by the second judgment module
The electric current of driving device 13 is no-load current or load current.When the cutting part 15 of electric cutting tool is not in contact with object to be cut
When 14, the power of driving device 13 is smaller, and the no-load current of driving device 13 is also smaller；When the cutting part when electric cutting tool
15 contact and when cutting object 14 to be cut, the power of driving device 13 is larger, and the load current of driving device 13 is also larger.From
And the second judgment module can be no-load current or load current according to the electric current of curent change situation judging-driving unit 13.
In one possible implementation, the control assembly may also include：
Second directive generation module, for when in second time threshold, the position relationship from not in contact with becoming contacting,
Become again from contact not in contact with and the electric current becomes load current from no-load current, and becomes no-load current from load current
When, generate the second driving instruction；The driving device makes the cutting part brake according to the second driving instruction.
For example, if within the short time (second time threshold), the position of object 14 to be cut and cutting part 15 is closed
System becomes from not in contact with becoming contacting, and from contact not in contact with and the electric current of driving device 13 is become loading from no-load current
Electric current, and no-load current is become from load current, it may be considered that electric cutting tool have occurred it is counter kick action, need to carry out anti-
Kick protection.
In this case, the second directive generation module of control assembly can generate the second driving instruction, and driving device can
According to the second driving instruction, cutting part is made to brake, to avoid damaging to operating personnel.The second time threshold can be set
It is set to such as 2s.It should be appreciated that the second time threshold may be set according to actual conditions, the value of the second time threshold can
With identical or different with the value of first time threshold, the utility model is not restricted this.
In one possible implementation, the position relationship includes between object and electric cutting tool to be cut
Whether distance is more than threshold value；
The control assembly further includes：
5th directive generation module, for being no-load current when the distance is more than the first distance threshold and the electric current
When, generate the 5th driving instruction
The driving device drives cutting part according to the 5th driving instruction, with the first actuating speed, and described first drives
Dynamic speed is less than the operating rate of the cutting part.
For example, when operating personnel prepare to cut object 14 to be cut, electric cutting tool, driving dress can be started
Set the rotation of 13 driving cutting parts 15.It is more than first at a distance between cutting part 15 of the object 14 to be cut with electric cutting tool
Distance threshold (as shown in Figure 3a), and when the electric current of driving device 13 is no-load current, it can be determined that cutting part 15 is not in contact with waiting for
Cut object 14.
In this case, control assembly can generate the 5th driving instruction by the 5th directive generation module, and driving device can
According to the 5th driving instruction, cutting part 15 is driven with the first actuating speed of the operating rate less than the cutting part.Pass through this
Kind mode, can make 15 low speed of cutting part run, to reduce power, extend the use of the battery pack of electric cutting tool
Time.It should be appreciated that the first actuating speed can be set as the arbitrary speed of the operating rate less than cutting part, the utility model
The specific value of first actuating speed is not restricted.
In one possible implementation, the control assembly further includes：6th directive generation module, for when described
When distance is less than or equal to the first distance threshold, the 6th driving instruction is generated；
The driving device drives cutting part according to the 6th driving instruction, with operating rate.
For example, when operating personnel's operation electric cutting tool starts to cut object 14 to be cut, 15 meeting of cutting part
It contacts and cuts object 14 to be cut.If the distance between object 14 to be cut and cutting part 15 are less than or equal to the first distance
Threshold value (as shown in Figure 3c), and the electric current of driving device 13 becomes load current from no-load current, then may determine that cutting part 15
Start to contact and cut object 14 to be cut.Control assembly can generate the 6th driving instruction by the 6th directive generation module.It drives
Dynamic device 13 can drive cutting part according to the 6th driving instruction with operating rate, that is, driving cutting part 15 is run at high speed.
In this way, it can make the cutting part high-speed cruising of electric cutting tool to cut object 14 to be cut.
In one possible implementation, the control assembly further includes：
Object to be cut, and the electricity is not detected for working as the relative position detector in third directive generation module
When stream is load current, third driving instruction is generated；
The driving device according to the third driving instruction, reduce actuating speed or in a pulsed fashion to cutting part into
Row driving.
For example, it operates electric cutting tool in operating personnel and cuts 14 period of object to be cut, relative position detection
Device can detect always the distance between object 14 and cutting part 15 to be cut.If relative position detector is not detected to be cut
Object is cut, and the electric current is load current, then can determine whether that object 14 to be cut will be cut off (such as shown in Fig. 3 d).
In this case, control assembly 12 can generate third driving instruction by third directive generation module.Driving device
13 can reduce the actuating speed of cutting part or are driven in a pulsed fashion to cutting part according to third driving instruction.Pass through this
Kind of mode can make electric cutting tool fall-back or be transported in a pulsed fashion when object 14 to be cut will be cut off
Row, to improve the safety of electric cutting tool.
In one possible implementation, the control assembly further includes：
Object to be cut, and the electricity is not detected for working as the relative position detector in 4th directive generation module
When stream is no-load current, the 4th driving instruction is generated；
The driving device reduces actuating speed or the cutting part is made to brake according to the 4th driving instruction.
For example, it operates electric cutting tool in operating personnel and cuts 14 period of object to be cut, if relative position
Object to be cut is not detected in detector, and the electric current of driving device 13 is no-load current, then can determine whether object 14 to be cut
It is cut off (such as shown in Fig. 3 e).
In this case, control assembly 12 can generate the 4th driving instruction by the 4th directive generation module.Driving device
13 according to the 4th driving instruction, can reduce the actuating speed of cutting part 15 or cutting part 15 is made to brake.In this way, may be used
So that electric cutting tool fall-back or braking when object 14 to be cut has been turned off, to improve electric cutting tool
Safety.
In one possible implementation, the control assembly further includes：The control assembly further includes：
7th directive generation module, for when in third time threshold, the position relationship from contact become not in contact with,
And electric current generates the 7th driving instruction when becoming no-load current from load current；
The driving device reduces actuating speed according to the 7th driving instruction, or the cutting part is made to brake.
For example, after operating personnel's operation electric cutting tool completes the cutting of object 14 to be cut, electronic cutting
Tool is far from the object cut.If between object 14 to be cut and cutting part 15 position relationship from contact become not in contact with,
And the electric current of driving device 13 becomes no-load current from load current, then may determine that object 14 to be cut has cut completion (example
As shown in Figure 3 e).
In this case, control assembly 12 can generate the 4th driving instruction by the 7th directive generation module.Driving device
13 according to the 4th driving instruction, can reduce the actuating speed of cutting part 15 or cutting part 15 is made to brake.In this way, may be used
So that electric cutting tool fall-back or braking when object 14 to be cut has been turned off, to improve electric cutting tool
Safety.
As shown in figure 4, in one possible implementation, which may also include：
Motion sensor 17, the direction of motion for detecting the cutting part；
Current sensing means 16, the electric current for detecting the driving device,
The control assembly 12 further includes：
Second judgment module, for judging the electric current for load current or no-load current；
8th directive generation module, when the electric current be load current, and first detector and it is described second detection
When object to be cut is not detected in detector in device, in front of the direction of motion of the cutting part, generates the 8th driving and refer to
It enables,
The driving device reduces actuating speed or is carried out in a pulsed fashion to cutting part according to the 8th driving instruction
Driving.
In one possible implementation, the relative position detector includes the first detector and the second detector,
First detector and the second detector are located at the cut surface both sides of cutting part.
For example, motion sensor 17 can be in the main body of electric cutting tool or on cutting part, be cut for detecting
Cut the direction of motion in portion；Current sensing means 16 may be connected to driving device 13, to detect the electric current of driving device 13；Relatively
Position detector 11 may include positioned at the first detector of the cut surface both sides of cutting part and the second detector (such as shown in Fig. 2
Range sensor 111 and 112), sensing direction can be towards the direction parallel with the length direction of cutting part.
In one possible implementation, control assembly 12 can pass through the electricity of the second judgment module judging-driving unit 13
Stream is load current or no-load current.If the electric current of driving device 13 is load current, and first detector and described
It, then can be with when object to be cut is not detected in detector in second detector, in front of the direction of motion of the cutting part
Judge that object 14 to be cut will be cut off (such as shown in Fig. 3 d).In this case, control assembly 12 can pass through the 8th instruction
Generation module generates the 8th driving instruction.Driving device 13 can according to the 8th driving instruction, reduce cutting part actuating speed or with
Pulse mode drives cutting part.
In this way, can make electric cutting tool when object 14 to be cut will be cut off fall-back or
It runs in a pulsed fashion, to improve the safety of electric cutting tool.
According to the electric cutting tool of the utility model embodiment, object to be cut can be detected by relative position detector
Relative position between body and the cutting part of electric cutting tool generates driving instruction according to relative position, and is referred to according to driving
Enable and cutting part driven by driving device, to electric cutting tool is counter kick when send out signal in time and brake in time, realize instead
Protection is kicked, the safety of electric cutting tool is improved；It single packet time that battery pack can be extended by intelligent speed-regulating, increases
Electric cutting tool uses the working time；/ the pulse cutting that slows down can be carried out before material to be cut body is cut off, after severance
Deceleration/stopping cutting, to realize the safeguard protection in cutting and after cutting.
Each embodiment of the utility model is described above, above description is exemplary, and non-exclusive, and
And it is also not necessarily limited to disclosed each embodiment.Without departing from the scope and spirit of illustrated each embodiment, for
Many modifications and changes will be apparent from for those skilled in the art.The choosing of term used herein
It selects, it is intended to best explain the principle, practical application or the technological improvement to the technology in market of each embodiment, or make this skill
Other those of ordinary skill in art field can understand each embodiment disclosed herein.
Claims (16)
1. a kind of electric cutting tool, which is characterized in that including：
Relative position detector, for detecting the opposite position between object to be cut and the cutting part of the electric cutting tool
It sets；
Control assembly generates driving instruction according to the relative position；
Driving device drives the cutting part according to the driving instruction.
2. electric cutting tool according to claim 1, which is characterized in that the control assembly includes：
First judgment module, for according to the relative position, judging the position relationship between object and cutting part to be cut.
3. electric cutting tool according to claim 2, which is characterized in that the control assembly further includes：
First directive generation module, for when in first time threshold, the position relationship from not in contact with becoming contacting, and by
Contact become not in contact with when, generate the first driving instruction；
The driving device makes the cutting part brake according to the first driving instruction.
4. electric cutting tool according to claim 2, which is characterized in that further include：
Current sensing means, the electric current for detecting the driving device；
The control assembly is additionally operable to, and according to the relative position and the electric current, generates the driving instruction.
5. electric cutting tool according to claim 4, which is characterized in that the control assembly further includes：
Second judgment module, for judging the electric current for no-load current or load current.
6. electric cutting tool according to claim 5, which is characterized in that the control assembly further includes：
Second directive generation module, for when in second time threshold, the position relationship from not in contact with becoming contacting, and by
Contact becomes not in contact with and the electric current becomes load current from no-load current, and when becoming no-load current from load current, raw
At the second driving instruction；
The driving device makes the cutting part brake according to the second driving instruction.
7. electric cutting tool according to claim 5, which is characterized in that the control assembly further includes：
Object to be cut is not detected for working as the relative position detector in third directive generation module, and the electric current is
When load current, third driving instruction is generated；
The driving device reduces actuating speed or is driven in a pulsed fashion to cutting part according to the third driving instruction
It is dynamic.
8. electric cutting tool according to claim 5, which is characterized in that the control assembly further includes：
Object to be cut is not detected for working as the relative position detector in 4th directive generation module, and the electric current is
When no-load current, the 4th driving instruction is generated；
The driving device reduces actuating speed or the cutting part is made to brake according to the 4th driving instruction.
9. electric cutting tool according to claim 5, which is characterized in that the position relationship include object to be cut with
Whether the distance between described electric cutting tool is more than threshold value；
The control assembly further includes：
5th directive generation module is used for when the distance is more than the first distance threshold and the electric current is no-load current, raw
At the 5th driving instruction
The driving device drives cutting part, the first driving speed according to the 5th driving instruction, with the first actuating speed
Operating rate of the degree less than the cutting part.
10. electric cutting tool according to claim 9, which is characterized in that the control assembly further includes：
6th directive generation module, for when the distance is less than or equal to the first distance threshold, generating the 6th driving instruction；
The driving device drives cutting part according to the 6th driving instruction, with operating rate.
11. electric cutting tool according to claim 5, which is characterized in that the control assembly further includes：
7th directive generation module, for when in third time threshold, the position relationship from contact become not in contact with and electricity
When stream becomes no-load current from load current, the 7th driving instruction is generated；
The driving device reduces actuating speed according to the 7th driving instruction, or the cutting part is made to brake.
12. electric cutting tool according to claim 1, which is characterized in that the relative position detector includes first
Detector and the second detector,
First detector and second detector are located at the cut surface both sides of the cutting part.
13. electric cutting tool according to claim 12, which is characterized in that further include：
Motion sensor, the direction of motion for detecting the cutting part；
Current sensing means, the electric current for detecting driving device,
The control assembly further includes：
Second judgment module, for judging the electric current for load current or no-load current；
8th directive generation module, when the electric current be load current, and in first detector and second detector,
When object to be cut is not detected in detector in front of the direction of motion of the cutting part, the 8th driving instruction is generated,
The driving device reduces actuating speed or is driven in a pulsed fashion to cutting part according to the 8th driving instruction
It is dynamic.
14. electric cutting tool according to claim 1, which is characterized in that
The main body of the cutting part and electric cutting tool connects；
The relative position detector includes range sensor；
The range sensor is located at the front of the main body, the sensing direction direction side parallel with the length direction of cutting part
To.
15. according to any one of claim 1~14 electric cutting tool, which is characterized in that the electric cutting tool is
Chain saw.
16. according to claim 1~14 any one of them electric cutting tool, which is characterized in that the relative position detection
Device is one or more in infrared sensor, laser sensor, ultrasonic sensor and visual sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820355377.2U CN208019534U (en) | 2018-03-15 | 2018-03-15 | Electric cutting tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820355377.2U CN208019534U (en) | 2018-03-15 | 2018-03-15 | Electric cutting tool |
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| CN208019534U true CN208019534U (en) | 2018-10-30 |
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ID=63906900
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| CN201820355377.2U Active CN208019534U (en) | 2018-03-15 | 2018-03-15 | Electric cutting tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110270717A (en) * | 2018-03-15 | 2019-09-24 | 苏州宝时得电动工具有限公司 | Electric cutting tool |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110270717A (en) * | 2018-03-15 | 2019-09-24 | 苏州宝时得电动工具有限公司 | Electric cutting tool |
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