CN208162759U - A kind of electric saw easy to use - Google Patents
A kind of electric saw easy to use Download PDFInfo
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- CN208162759U CN208162759U CN201820766771.5U CN201820766771U CN208162759U CN 208162759 U CN208162759 U CN 208162759U CN 201820766771 U CN201820766771 U CN 201820766771U CN 208162759 U CN208162759 U CN 208162759U
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- driving motor
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- 238000009434 installation Methods 0.000 claims abstract description 23
- 239000007858 starting material Substances 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 230000002159 abnormal effect Effects 0.000 claims description 8
- 239000013078 crystal Substances 0.000 claims description 4
- 241000208340 Araliaceae Species 0.000 claims 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims 1
- 235000003140 Panax quinquefolius Nutrition 0.000 claims 1
- 235000008434 ginseng Nutrition 0.000 claims 1
- 230000005611 electricity Effects 0.000 description 6
- 230000001960 triggered effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000001012 protector Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A kind of electric saw easy to use, including guide plate, saw chain, shell is installed, it is set to the intracorporal driving motor of the mounting shell, control device and for the driving motor, with the battery of control device power supply, the guide plate is located at driving motor front end, the guide plate is fixedly connected with installation shell, the saw chain is located on the outside of guide plate, the saw chain is flexibly connected with guide plate, the saw chain is connect with driving engine, the control device includes starter, overcurrent protection switch, voltage regulation unit, Overvoltage protecting unit, over-current protecting unit, PWM control unit, driving unit and display unit.The utility model can prevent the output voltage of battery from generating violent variation, so that battery be substantially improved and use cruise duration.
Description
Technical field
The utility model relates to a kind of electric saws, refer in particular to a kind of electric saw easy to use.
Background technique
Electric saw, also known as " power saw ", by German An Deleiasi.Si Dier is invented in nineteen twenty-six, is greatly saved
Time spent by cutting material and manpower.Electric saw is using electricity as power, for cutting the cutter of timber, building stones, steel etc.
Tool, there is pointed tooth at edge.It says good-bye fixed and portable, saw blade is usually to be made of tool steel, there is circular, bar shaped and chain type
Etc. a variety of.
For now, most electric saw not can control battery and carry out stablizing output appropriate on the market, and can not be directed to
The material category of be intended to operation is promoted to adjust the revolving speed of control motor when the charge capacity of battery is higher with higher voltage
So that motor is made high speed rotation, if the material of be intended to operation does not have to so high revolving speed, that is, causes the waste of battery electric power, not only
Shorten electric saw uses cruise duration, more significantly reduces the service efficiency of battery.
Utility model content
The utility model provides a kind of electric saw easy to use, and main purpose is to overcome the existing consumption of existing electric saw
The low defect of energy, battery availability factor.
In order to solve the above technical problems, the utility model adopts the following technical solution：
A kind of electric saw easy to use, including guide plate, saw chain, installation shell, to be set to the intracorporal driving of the mounting shell electric
Machine, control device and the battery for powering to the driving motor and control device, the guide plate are located at driving motor
Front end, the guide plate are fixedly connected with installation shell, and the saw chain is located on the outside of guide plate, and the saw chain is flexibly connected with guide plate,
The saw chain is connect with driving engine, and the control device includes starter, overcurrent protection switch, voltage regulation unit, over-voltage guarantor
Shield unit, over-current protecting unit, PWM control unit, driving unit and display unit, the starter are installed in the mounting shell
On body and it is electrically connected to the output end of battery, so that control opens and closes the power supply of each load；The overcurrent protection switch is series at
Between battery and driving motor, the overcurrent protection switch is a no-fuse switch protector with non-demolition characteristic, with
Under the abnormal conditions that current overload occurs, that is, the de-energizing actions of contact escape are executed, the overcurrent protection switch is simultaneously equipped with dress
Reset button on installation shell can reopen overcurrent protection switch after excluding for abnormal conditions；The pressure stabilizing
Unit is connected to the output end of overcurrent protection switch, to input the voltage of battery, and an exportable burning voltage；The over-voltage
Protection location generates reference voltage value by the burning voltage that voltage regulation unit exports in the way of dividing, and can separately sense battery output
The sensing voltage value of voltage, and sensing voltage is worked as compared with sensing voltage value carries out voltage quasi position with the reference voltage value
When value is higher than reference voltage value, that is, the signal of output voltage high levle is controlled, when sensing voltage value is lower than reference voltage value, then
Control the signal of output voltage low level；The over-current protecting unit can sense the sensing electric current that battery is attracted and exported
Value, and with the current value compared with a preset reference current value carries out current value, when sensing current value is higher than with reference to electricity
When flow valuve, that is, the signal of output off current HIGH level is controlled, when sensing current value lower than reference current value, then controls output electric current
The signal of low level；The PWM control unit is used to receive the voltage high levle signal of Overvoltage protecting unit output and overcurrent is protected
The electric current low level signal of unit output is protected, and pulse wave width modulation signal is exported according to received signal；The driving is single
Member is a power crystal, and power input is connected to the output end of overcurrent protection switch, and output end is then connected to driving motor,
Another signal input part receives the pulse wave width modulation signal of PWM control unit output, for the control driving unit triggered time
Length, and control driving unit output pulse wave electric voltage in the way of pulse wave width modulation and drive driving motor rotation, Jin Erke
Control driving motor is maintained at the idling mode of the slow-speed of revolution.
Further, the starting handle for manipulating the starter is provided on the installation shell.
Further, the display unit be installed in installation shell on, and be equipped with can show voltage normal first respectively
4th display group of display component, the second display component of undertension, the third display component of overcurrent and idling mode
Part.
Further, above-mentioned electric saw further includes a temperature sensor and alarm, and the guide plate is guide metal, described
Saw chain is wound around the side of the guide metal, and the temperature sensor is installed on guide metal and leads for incuding the metal
The temperature of plate, the output end of the temperature sensor are connected with the enable end of the PWM control unit, the PWM control unit
Output end be connected with the enable end of the alarm.
Further, the installation shell is sequentially provided with apron plate, preceding handle and rear handle below the guide plate.
Further, it is additionally provided with laser leveler on the installation shell, the laser leveler and battery electricity
Connection.
1, the utility model structure is simple, practical, by the way that PWM control unit is arranged, can set idling first with it
Driving motor revolving speed under state, the driving unit exports the fixation average voltage after pulse wave width modulation, and promotees
Driving motor is set to be maintained at the idling mode for being not enough to carry out the slow-speed of revolution of sawmilling operation, and the display unit receives idling
The signal of state, and trigger display component and display component according to received signal, to carry out, display voltage is normal and idling
State, and in operating process, if control driving motor moment improves revolving speed, it can prevent the output voltage of battery from generating acute
Strong variation, so that battery be substantially improved and use cruise duration.
2, in the present invention, thereon by setting guide metal and by saw chain winding, since guide metal is easy
It is thermally conductive, thus with real-time delivery and the heat on saw chain can be distributed, and temperature sensor is set in guide metal, Ke Yishi
When perceive its temperature, to perceive the temperature of saw chain indirectly, and remind user in time, it made effectively to control the work of electric saw
Duration, and then extend the service life of electric saw.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the utility model
Fig. 2 is the functional block diagram of above-mentioned control device in the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clear, complete description, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Figures 1 and 2.A kind of electric saw easy to use 1, including guide plate 10, saw chain 11, installation shell 2, be set to this
Driving motor 4 in shell 2, temperature sensor 40, control device 6, alarm 41 are installed and are used for the driving motor
4, the battery 3 that temperature sensor 40, control device 6 and alarm 41 are powered, the guide plate 10 are located at 4 front end of driving motor,
The guide plate 10 is fixedly connected with installation shell 2, and the saw chain 11 is located at 10 outside of guide plate, the saw chain 11 and 10 activity of guide plate
Connection, the saw chain 11 are sequentially connected with driving motor 4, and the guide plate 10 is guide metal 10, and the saw chain 11 is wound around this
The side of guide metal 10, the temperature sensor 40 are installed on guide metal 10 and for incuding the guide metal 10
Temperature, the output end of the temperature sensor 40 are connected with the enable end of the control device 6, the output of the control device 6
End is connected with the enable end of the alarm 41.
Referring to Figures 1 and 2.The installation shell 2 is sequentially provided with apron plate 20, preceding handle 21 below the guide plate 10
And rear handle 22.
Referring to Figures 1 and 2.Be additionally provided with laser leveler 23 on the installation shell 2, the laser leveler 23 with it is described
Battery 3 is electrically connected.
Referring to Figures 1 and 2.The control device 6 includes starter 60, overcurrent protection switch 61, voltage regulation unit 62, over-voltage
Protection location 63, over-current protecting unit 64, PWM control unit 65, driving unit 66 and display unit 67, the starter 60 fill
Set on the output end installed on shell 2 and be electrically connected to battery 3, so that control opens and closes the power supply of each load；The mistake
It carries protective switch 61 to be series between battery 3 and driving motor 4, the overcurrent protection switch 61 is one with non-demolition characteristic
No-fuse switch protector, in occur current overload abnormal conditions under, that is, execute contact escape de-energizing actions, it is described
Overcurrent protection switch 61 can simultaneously be opened after excluding for abnormal conditions equipped with the reset button being installed on installation shell 2 again
Open overcurrent protection switch 61；The voltage regulation unit 62 is connected to the output end of overcurrent protection switch 61, to input the electricity of battery 3
Pressure, and an exportable burning voltage；The burning voltage that the Overvoltage protecting unit 63 is exported using voltage regulation unit 62 is with the side of partial pressure
Formula generates reference voltage value, can separately sense the sensing voltage value of 3 output voltage of battery, and with the reference voltage value and sensing
Voltage value carries out the comparison of voltage quasi position, when sensing voltage value is higher than reference voltage value, that is, controls output voltage high levle
Signal then controls the signal of output voltage low level when sensing voltage value is lower than reference voltage value；The over-current protecting unit
64 can sense the sensing current value that battery 3 is attracted and exported, and with the current value and a preset reference current value into
The comparison of row current value controls the signal of output off current HIGH level, works as sensing when sensing current value higher than reference current value
When current value is lower than reference current value, then the signal of output electric current low level is controlled；The PWM control unit 65 was for receiving
The electric current low level signal that the voltage high levle signal and over-current protecting unit 64 for pressing protection location 63 to export export, and according to institute
Received signal exports pulse wave width modulation signal；The driving unit 66 is a power crystal, and power input is connected to
The output end of overcurrent protection switch 61, output end are then connected to driving motor 4, and another signal input part receives PWM control unit 65
The pulse wave width modulation signal of output for controlling the length in 66 triggered time of driving unit, and utilizes pulse wave width modulation
Mode controls driving unit 66 and exports the pulse wave electric voltage drive rotation of driving motor 4, and then controllable driving motor 4 is maintained at low turn
The idling mode of speed.
Referring to Figures 1 and 2.The display unit 67 is installed on installation shell 2, and is equipped with and can be shown that respectively voltage is normal
The first display component, the second display component of undertension, the third display component of overcurrent and idling mode the 4th
Display component.
Referring to Figures 1 and 2.The battery 3 is nickel-metal hydride battery, alkaline battery, nickel-cadmium cell, lithium battery or lighium polymer
Battery.Referring to Figures 1 and 2.Above-mentioned overcurrent protection switch 61 is series between battery 3 and driving motor 4, which opens
Closing 61 can be a no-fuse switch protector with non-demolition characteristic, under the abnormal conditions that current overload occurs, that is, to hold
The de-energizing actions of row contact escape；The voltage regulation unit 62 is connected to the output end of overcurrent protection switch 61, to input battery 3
Voltage (Vbb), an and exportable burning voltage (Vcc)；The Overvoltage protecting unit 63 is exported steady using voltage regulation unit 62
Constant voltage (Vcc) generates reference voltage value (Vref) in a manner of dividing, and can separately sense the sensing of 3 output voltage of battery (Vbb)
Voltage value (Vbb1), and with the reference voltage value (Vref) compared with sensing voltage value (Vbb1) carries out voltage quasi position, when
When sensing voltage value (Vbb1) is higher than reference voltage value (Vref), that is, the signal of output voltage high levle is controlled, sensing voltage is worked as
When being worth (Vbb1) lower than reference voltage value (Vref), then the signal of output voltage low level is controlled；The over-current protecting unit 64
The sensing current value (Im) that battery 3 is attracted and exported can be sensed, and it is preset with reference to electricity with one with the current value (Im)
Flow valuve (Iref) carries out the comparison of current value, when sensing current value (Im) higher than reference current value (Iref), i.e. control output
The signal of electric current high levle then controls the low standard of output electric current when sensing current value (Vbb1) lower than reference current value (Iref)
The signal of position；The PWM control unit 65 is connected with the first adjustment component being installed on installation shell 2 and second adjustment group
Part, the first adjustment component and second adjustment component are variable resistance, and by adjusting change the first adjustment component and second
The resistance value of component is adjusted, it is another to can receive the duration of adjustment output pulse wave electric voltage high levle and low level is set separately
The electric current low level signal that the voltage high levle signal and over-current protecting unit 64 that Overvoltage protecting unit 63 exports export, and according to
Received signal exports pulse wave width modulation signal；The driving unit 66 is a power crystal, power input connection
In the output end of overcurrent protection switch 61, output end is then connected to driving motor 4, and another signal input part receives PWM control unit
The pulse wave width modulation signal of 65 outputs for controlling the length in 66 triggered time of driving unit, and utilizes pulse wave width modulation
Mode control driving unit 66 and export pulse wave electric voltage driving motor 4 is promoted to rotate, and then controllable driving motor 4 be maintained at it is low
The idling mode of revolving speed, and the appropriate working speed of regulation driving motor 4 can be carried out；The display unit 67 is installed in mounting shell
On body 2, and it is equipped with and can shows voltage normal first display component, the second display component of undertension, overcurrent respectively
4th display component of third display component and idling mode, the voltage quasi position letter that another receivable Overvoltage protecting unit 63 exports
Number and the current level signal that exports of over-current protecting unit 64, and trigger first, second, third and fourth respectively according to received signal
Display component shown, so that user grasped battery 3 and driving motor 4 at any time operates with state.
Referring to Figures 1 and 2.The present embodiment first with the PWM control unit 65 of the control device 6 before use, can set
Determine 4 revolving speed of driving motor under idling mode, the first adjustment component of PWM control unit 65 is fixed, and sets adjustment the
For two adjustment components to minimum value, the driving unit 66 exports the fixation average voltage after pulse wave width modulation, and promotees
Driving motor 4 is set to be maintained at the idling mode for being not enough to carry out the slow-speed of revolution of sawmilling operation, and the display unit 67 receives
The signal of idling mode, and display component and display component are triggered according to received signal, with carry out display voltage it is normal and
Idling mode, and in operating process, if control 4 moment of driving motor improves revolving speed, the output voltage of battery 3 can be prevented
Violent variation is generated, so that battery be substantially improved and use cruise duration.
Referring to Figures 1 and 2.For the present embodiment when carrying out sawmilling operation, operator can be directed to the type in various soils, and sharp
The appropriate working speed that regulation driving motor 4 is carried out with the PWM control unit 65 of the control device 6, in the first adjustment group
In the case that part remains unchanged, by adjusting the length of time of second adjustment component, i.e., the output of changeable PWM control unit 65
The duty cycle of pulse wave, and change the actual average voltage of supply driving motor 4, and become by the height of actual average voltage
Change, the appropriate working speed of regulation driving motor 4 can be carried out, the output of driving unit 66 is controlled in a manner of pulse wave width modulation
Pulse wave electric voltage, and driving motor 4 is promoted to rotate with working speed appropriate, for carrying out sawmilling operation, and utilize pulse wave wide
Degree modulation mode controls output pulse wave electric voltage and driving motor 4 is promoted to rotate, and can not only extend using cruise duration, and can make to drive
Dynamic 4 revolving speed of motor can be held in for a long time to be allowed in working range, and then reaches the practical mesh that battery availability factor is substantially improved
's；Separately in course of normal operation, the Overvoltage protecting unit 63 of the control device 6 is the sense for carrying out sensing battery 3 and exporting
It surveys voltage value (Vbb1), and is compared with reference voltage value (Vref), and over-current protecting unit 64 also carries out sensing storage simultaneously
The sensing current value (Im) that battery 3 exports, and be compared with reference current value (Iref), when the sensing of Overvoltage protecting unit 63
Voltage value (Vbb1) is higher than reference voltage value (Vref), i.e. the signal of output voltage high levle to PWM control unit 65 and mistake
When flowing the sensing current value (Im) of protection location 64 lower than reference current value (Iref), that is, export the signal of electric current low level extremely
PWM control unit 65, the PWM control unit 65 persistently export pulse wave width modulation signal according to received signal, with
Control driving unit 66 exports pulse wave electric voltage and driving motor 4 is promoted to rotate, for carrying out sawmilling operation.
Referring to Figures 1 and 2.It in the present embodiment, will if the saw chain that electric saw occurs is blocked and stopped by the object on hard ground
Will lead to driving motor 4 can not be successfully rotation, at this point, driving motor 4 in order to overcome this one hinder, it will always increase input electricity
Stream, improves output torque, is hindered with overcoming, if general is so that load current appearance is different however, this situation fails to exclude as early as possible
It often improves, and then in current overload condition occurs, the over-current protecting unit 64 of the control device 6, which can sense, compares electric power storage
The sensing current value (Im) that pond 3 exports is higher than the abnormal conditions of reference current value (Iref), at this point, the PWM control unit 65
It will be reset in time, and stop output pulse wave width modulation signal, the driving unit 66 also stops output pulse wave electric voltage and promotes
Driving motor 4 rotates, and achievees the purpose that overload protection, and the another display unit 67 is to receive what over-current protecting unit 64 exported
Electric current high levle signal, and display component is triggered according to received signal and carries out display current overload condition, user can root
It according to situation shown by display unit 67, gets obstacles out of the way, if current overload condition occurs, and over-current protecting unit 64 is not
When movement, the de-energizing actions of contact escape are also executed using the overcurrent protection switch 61.
Referring to Figures 1 and 2.In the present embodiment, the electric power of battery 3 is gradually consumed, when Overvoltage protecting unit 63
Sensing voltage value (Vbbl) when being lower than reference voltage value (Vref), the Overvoltage protecting unit 63 is output voltage low level
Signal at this point, the PWM control unit 65 will be reset in time, and stops output pulse wave width modulation signal, and the driving is single
Member 66 also stops output pulse wave electric voltage and driving motor 4 is promoted to rotate, to prevent 3 over-discharge of battery, the display unit 67
The voltage low level signal that Overvoltage protecting unit 63 exports is received, and display component is triggered according to received signal and is shown
Show undertension situation, user can the situation according to display unit 67, battery 3 is removed, and charges, and
It can reach the purpose for extending 3 service life of battery.
The starting handle 24 for manipulating the starter is provided on the installation shell 2.
Compared to the prior art, the beneficial effect that the utility model generates is:
The utility model structure is simple, practical, thereon by setting guide metal 10 and by 11 winding of saw chain, by
It is easy in guide metal 10 thermally conductive, thus with real-time delivery and the heat on saw chain 11 can be distributed, and temperature sensor 40 is set
It is placed in guide metal 10, to perceive the temperature of saw chain 11 indirectly, and can remind in time and use with its temperature of real-time perception
Person makes it effectively control the operating time of electric saw 1, and then extends the service life of electric saw 1.
A kind of electric saw easy to use provided by the utility model is described in detail above.It is used herein
Specific case is expounded the principles of the present invention and embodiment, and the explanation of above example is only intended to help to manage
Solve the method and its core concept of the utility model.It should be pointed out that for those skilled in the art, not
Under the premise of being detached from the utility model principle, several improvements and modifications can be made to this utility model, these improve and repair
Decorations are also fallen into the protection scope of the utility model claims.
Claims (6)
1. a kind of electric saw easy to use, it is characterised in that：Including guide plate, saw chain, installation shell, it is set in the mounting shell body
Driving motor, control device and the battery for powering to the driving motor and control device, the guide plate be located at
Driving motor front end, the guide plate are fixedly connected with installation shell, and the saw chain is located on the outside of guide plate, and the saw chain and guide plate are living
Dynamic connection, the saw chain are connect with driving engine, the control device include starter, overcurrent protection switch, voltage regulation unit,
Overvoltage protecting unit, over-current protecting unit, PWM control unit, driving unit and display unit, the starter are installed in described
The output end of battery is installed on shell and is electrically connected to, so that control opens and closes the power supply of each load；The overcurrent protection switch
It is series between battery and driving motor, the overcurrent protection switch is that a no-fuse switch with non-demolition characteristic is protected
Device, under the abnormal conditions that current overload occurs, that is, to execute the de-energizing actions of contact escape, the overcurrent protection switch is simultaneously set
There is the reset button being installed on installation shell that can reopen overcurrent protection switch after excluding for abnormal conditions；It is described
Voltage regulation unit is connected to the output end of overcurrent protection switch, to input the voltage of battery, and an exportable burning voltage；It is described
Overvoltage protecting unit generates reference voltage value by the burning voltage that voltage regulation unit exports in the way of dividing, and can separately sense battery
The sensing voltage value of output voltage, and sensing is worked as compared with sensing voltage value carries out voltage quasi position with the reference voltage value
When voltage value is higher than reference voltage value, that is, the signal of output voltage high levle is controlled, when sensing voltage value is lower than reference voltage value
When, then control the signal of output voltage low level；The over-current protecting unit can sense the sensing that battery is attracted and exported
Current value, and with the current value compared with a preset reference current value carries out current value, when sensing current value is higher than ginseng
When examining current value, that is, the signal of output off current HIGH level is controlled, when sensing current value lower than reference current value, then controls output
The signal of electric current low level；The PWM control unit is used to receive the voltage high levle signal and mistake of Overvoltage protecting unit output
The electric current low level signal of protection location output is flowed, and pulse wave width modulation signal is exported according to received signal；The drive
Moving cell is a power crystal, and power input is connected to the output end of overcurrent protection switch, and output end is then connected to driving
Motor, another signal input part receive the pulse wave width modulation signal of PWM control unit output, when for control driving unit triggering
Between length, and controlled in the way of pulse wave width modulation driving unit output pulse wave electric voltage drive driving motor rotation, into
And controllable driving motor is maintained at the idling mode of the slow-speed of revolution.
2. a kind of electric saw easy to use as described in claim 1, it is characterised in that：It is provided on the installation shell for grasping
Control the starting handle of the starter.
3. a kind of electric saw easy to use as claimed in claim 2, it is characterised in that：The display unit is installed in installation shell
On, and be equipped with can show respectively normal first display component of voltage, the second display component of undertension, overcurrent third
4th display component of display component and idling mode.
4. a kind of electric saw easy to use as described in claim 1, it is characterised in that：It further include a temperature sensor and alarm
Device, the guide plate are guide metal, and the saw chain is wound around the side of the guide metal, and the temperature sensor is installed on metal
Temperature on guide plate and for incuding the guide metal, the output end of the temperature sensor and the PWM control unit
Enable end is connected, and the output end of the PWM control unit is connected with the enable end of the alarm.
5. a kind of electric saw easy to use as described in claim 1, it is characterised in that：The installation shell is below the guide plate
It is sequentially provided with apron plate, preceding handle and rear handle.
6. a kind of electric saw easy to use as described in claim 1, it is characterised in that：Laser is additionally provided on the installation shell
Level meter, the laser leveler are electrically connected with the battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820766771.5U CN208162759U (en) | 2018-05-22 | 2018-05-22 | A kind of electric saw easy to use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820766771.5U CN208162759U (en) | 2018-05-22 | 2018-05-22 | A kind of electric saw easy to use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208162759U true CN208162759U (en) | 2018-11-30 |
Family
ID=64364104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820766771.5U Expired - Fee Related CN208162759U (en) | 2018-05-22 | 2018-05-22 | A kind of electric saw easy to use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208162759U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112338276A (en) * | 2019-08-08 | 2021-02-09 | 罗伯特·博世有限公司 | Brake device, chain saw and method for protecting an operator |
-
2018
- 2018-05-22 CN CN201820766771.5U patent/CN208162759U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112338276A (en) * | 2019-08-08 | 2021-02-09 | 罗伯特·博世有限公司 | Brake device, chain saw and method for protecting an operator |
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