CN209786857U - electric tool control device and electric tool - Google Patents
electric tool control device and electric tool Download PDFInfo
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- CN209786857U CN209786857U CN201920994228.5U CN201920994228U CN209786857U CN 209786857 U CN209786857 U CN 209786857U CN 201920994228 U CN201920994228 U CN 201920994228U CN 209786857 U CN209786857 U CN 209786857U
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Abstract
The utility model discloses an electric tool controlling means, electric tool, include: an ultra-low power consumption switching module; a tool control module; a power-on module; the power-on module is electrically connected with a direct current power supply; the ultra-low power consumption switching module is electrically connected with the power-on module, and can form a loop with the direct-current power supply in a power-on state of the power-on module; the tool control module is electrically connected with the ultra-low power consumption switching module, and can be connected with the direct-current power supply and form a loop in the power-on state of the power-on module, and the tool control module can also control the ultra-low power consumption switching module to be switched into the ultra-low power consumption state. The electric tool control device can be switched to enter an ultra-low power consumption state under the condition that the power-on module is powered on all the time.
Description
Technical Field
The utility model belongs to the technical field of automatically controlled, especially, relate to an electric tool controlling means, electric tool.
background
Currently, electric tools using batteries, power is supplied by lithium batteries. The lithium battery has the minimum discharge requirement, and the service life of the lithium battery can be seriously influenced by over discharge, even the lithium battery is directly scrapped. Due to cost constraints and versatility considerations, most current power tools do not have over-discharge protection for the lithium battery itself, and therefore require a controller connected thereto to perform the over-discharge protection function.
when a user pulls the trigger (the power-on module is powered on), the electric tool is not turned off in time due to other reasons, or the electric tool is stopped after triggering an abnormal protection mechanism, the user mistakenly thinks that the trigger is loosened, so that the trigger is not loosened all the time. At this time, the controller consumes power all the time, so that the lithium battery is over-discharged, the service life of the lithium battery is shortened or the lithium battery is damaged.
SUMMERY OF THE UTILITY MODEL
the technical purpose of the utility model is to provide an electric tool control device, electric tool and control method, this kind of electric tool control device can switch electric tool control device and get into the state of ultralow power consumption under the last electric module power-on condition always.
in order to solve the above problem, the technical scheme of the utility model is that:
an electric tool control device comprising: an ultra-low power consumption switching module; a tool control module; a power-on module; the power-on module is electrically connected with a direct current power supply; the ultra-low power consumption switching module is electrically connected with the power-on module, and can form a loop with the direct-current power supply in a power-on state of the power-on module; the tool control module is electrically connected with the ultra-low power consumption switching module, and can be connected with the direct-current power supply and form a loop in the power-on state of the power-on module, and the tool control module can also control the ultra-low power consumption switching module to be switched into the ultra-low power consumption state.
according to the utility model discloses an embodiment, the ultra-low power consumption switches the module and includes: the circuit comprises a first ultralow-power-consumption resistor, a first capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a first conducting switch, a second conducting switch and a third conducting switch; the power-on module is electrically connected with a positive electrode of the direct-current power supply, a first end of the first capacitor is electrically connected with the power-on module, and a first end of the first capacitor is also electrically connected with a first end of the first ultra-low power consumption resistor; the second end of the first capacitor is electrically connected with the first end of the third resistor; the second end of the first ultra-low power consumption resistor is electrically connected with the negative electrode of the direct current power supply; the first end of the first resistor is electrically connected with the positive electrode of the direct-current power supply, and the first end of the first resistor is also electrically connected with the first end of the first conduction switch; the second end of the first resistor is electrically connected with the first end of the second resistor, and the second end of the first resistor is also electrically connected with the second end of the first conducting switch; a first end of the second resistor is electrically connected with a second end of the first conducting switch, a second end of the second resistor is electrically connected with a first end of the second conducting switch, and a second end of the second resistor is also electrically connected with a first end of the third conducting switch; a second end of the third resistor is electrically connected with a second end of the third conduction switch; a first end of the fourth resistor is electrically connected with a second end of the second conduction switch, and a second end of the fourth resistor is electrically connected with an output control pin of the tool control module; the third end of the first conduction switch is electrically connected with the anode port of the tool control module; the third end of the second conduction switch is electrically connected with the negative electrode of the direct-current power supply; the third end of the third conducting switch is electrically connected with the negative electrode of the direct-current power supply; the output control pin of the tool control module is electrically connected with the negative electrode of the direct-current power supply; in an initial power-on state of the power-on module, the third conducting switch is conducted, the first conducting switch is conducted, the tool control module is initially powered on, and the second conducting switch is conducted; in a transition state, the third conducting switch is opened, and the tool control module can be disconnected from the fourth resistor according to the set delay time; and in an ultra-low power consumption state, the first conducting switch is open, the second conducting switch is open, and the third conducting switch is open.
According to the utility model discloses an embodiment, the ultra-low power consumption switches the module and includes: the second ultra-low power consumption resistor, the second capacitor, the fifth resistor, the sixth resistor, the seventh resistor and the eighth resistor; a fourth conducting switch and a fifth conducting switch; the power-on module is electrically connected with the negative electrode of the direct-current power supply, the first end of the second capacitor is electrically connected with the power-on module, and the first end of the second capacitor is also electrically connected with the first end of the second ultra-low power consumption resistor; the second end of the second capacitor is electrically connected with the first end of the eighth resistor; the second end of the second ultra-low power consumption resistor is electrically connected with the positive electrode of the direct current power supply; the first end of the fifth resistor is electrically connected with the positive electrode of the direct-current power supply, and the first end of the fifth resistor is also electrically connected with the first end of the fourth conducting switch; a second end of the fifth resistor is electrically connected with a first end of the sixth resistor, and a second end of the fifth resistor is also electrically connected with a second end of the fourth conducting switch; a first end of the sixth resistor is electrically connected to a second end of the fourth conducting switch, a second end of the sixth resistor is electrically connected to a first end of the fifth conducting switch, and a second end of the sixth resistor is also electrically connected to a second end of the eighth resistor; a second end of the eighth resistor is electrically connected with a first end of the fifth conducting switch; a first end of the seventh resistor is electrically connected with a second end of the fifth on-switch, and a second end of the seventh resistor is electrically connected with an output control pin of the tool control module; the third end of the fourth conduction switch is electrically connected with the anode port of the tool control module; the third end of the fifth conducting switch is electrically connected with the negative electrode of the direct-current power supply; the output control pin of the tool control module is electrically connected with the negative electrode of the direct-current power supply; in an initial power-on state of the power-on module, the fourth conducting switch is conducted, the tool control module is initially powered on, and the fifth conducting switch is conducted; in a transition state, the tool control module can be electrically disconnected from the seventh resistor according to the set delay time, and the fifth conducting switch is opened; and in the ultra-low power consumption state, the fourth conducting switch is open and the fifth conducting switch is open.
According to an embodiment of the present invention, the first conducting switch is a PNP triode or a PMOS triode; the second conducting switch and/or the third conducting switch is an NPN triode or an NMOS triode.
according to an embodiment of the present invention, the fourth conducting switch is a PNP triode or a PMOS triode; the fifth conducting switch is an NPN triode or an NMOS triode.
Based on the same conception, the utility model also provides an electric tool, including the electric tool controlling means in the above-mentioned embodiment.
According to an embodiment of the present invention, the electric tool is an angle grinder.
The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:
The utility model relates to an embodiment's electric tool control device can realize the switching of the super low power consumption state of device through setting up super low power consumption switching module and instrument control module, and under last electric module power-on state always, the steerable super low power consumption switching module of instrument control module cuts into super low power consumption state, and the DC power supply that can avoid using like this excessively discharges.
drawings
Fig. 1 is a block diagram of a control device for an electric tool according to the present invention;
fig. 2 is a hardware circuit diagram of an ultra-low power switching module according to the present invention;
Fig. 3 is a hardware circuit diagram of another ultra-low power switching module according to the present invention;
fig. 4 is a flowchart of a control method of an electric tool according to the present invention;
FIG. 5 is a sub-flowchart of the step A1 in FIG. 4;
Fig. 6 is a control block diagram of the electric tool in practical use of the electric tool of the present invention.
Detailed Description
the following describes an electric tool control device and an electric tool in further detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims.
example 1
Referring to fig. 1 to 3, an electric tool control device includes: an ultra-low power consumption switching module; a tool control module; a power-on module; the power-on module is electrically connected with the direct current power supply; the ultra-low power consumption switching module is electrically connected with the power-on module, and can form a loop with the direct-current power supply in the power-on state of the power-on module; the tool control module is electrically connected with the ultra-low power consumption switching module, and can be connected with a direct current power supply to form a loop in the power-on state of the power-on module, and the tool control module can also control the ultra-low power consumption switching module to switch into the ultra-low power consumption state.
In the electric tool control device in this embodiment, the switching of the ultra-low power consumption state of the device can be realized by setting the ultra-low power consumption switching module and the tool control module, and the tool control module can control the ultra-low power consumption switching module to switch into the ultra-low power consumption state when the power-on module is powered on all the time, so that excessive discharge of a used direct-current power supply can be avoided.
Specifically, the power-on module is a trigger of the electric tool, and if the electric tool is in a shutdown state but the power-on module is not turned off, the electric tool system is always in a power-on state, the tool control module continuously consumes power, and the direct-current power supply is over-discharged. In the electric tool control device in this embodiment, if the power-on module is always in the power-on state in the shutdown state, the tool control module may control the ultra-low power consumption switching module to switch into the ultra-low power consumption state, so that the tool control module may be in the power-off state, and excessive discharge of the used dc power supply is avoided.
example 2
Referring to fig. 2, on the basis of embodiment 1, this embodiment provides a specific application example of the ultra-low power switching module, specifically, the ultra-low power switching module includes: the circuit comprises a first ultra-low power consumption resistor R8, a first capacitor C4, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first conducting switch Q1, a second conducting switch Q2 and a third conducting switch Q3; the power-on module S1 is electrically connected with the positive electrode of the direct-current power supply, the first end of the first capacitor C4 is electrically connected with the power-on module S1, and the first end of the first capacitor C4 is also electrically connected with the first end of the first ultra-low power consumption resistor R8; a second end of the first capacitor C4 is electrically connected with a first end of the third resistor R3; the second end of the first ultra-low power consumption resistor R8 is electrically connected with the negative pole of the direct current power supply; a first end of the first resistor R1 is electrically connected with the positive electrode of the direct current power supply, and a first end of the first resistor R1 is also electrically connected with a first end of the first on-switch Q1; the second end of the first resistor R1 is electrically connected with the first end of the second resistor R2, and the second end of the first resistor R1 is also electrically connected with the second end of the first on-switch Q1; a first end of the second resistor R2 is electrically connected to a second end of the first on-switch Q1, a second end of the second resistor R2 is electrically connected to a first end of the second on-switch Q2, and a second end of the second resistor R2 is further electrically connected to a first end of the third on-switch Q3; a second terminal of the third resistor R3 is electrically connected to a second terminal of the third on-switch Q3; a first end of the fourth resistor R4 is electrically connected with a second end of the second on-switch Q2, and a second end of the fourth resistor R4 is electrically connected with an output control pin of the tool control module; the third end of the first conduction switch Q1 is electrically connected with the positive electrode port of the tool control module; the third end of the second on-switch Q2 is electrically connected with the negative pole of the direct current power supply; the third end of the third on-switch Q3 is electrically connected with the negative pole of the direct current power supply; the output control pin of the tool control module is electrically connected with the negative electrode of the direct-current power supply; in the initial power-on state of the power-on module S1, the third on-switch Q3 is turned on, the first on-switch Q1 is turned on, the tool control module is initially powered on, and the second on-switch Q2 is turned on; in the transitional state, the third on switch Q3 is open, and the tool control module can be electrically disconnected from the fourth resistor R4 according to the set delay time; in the ultra-low power consumption state, the first conducting switch Q1, the second conducting switch Q2 and the third conducting switch Q3 are open.
further, the first conducting switch Q1 is a PNP transistor or a PMOS transistor; the second conducting switch Q2 and/or the third conducting switch Q3 is an NPN transistor or an NMOS transistor.
the working principle or working process of the module in this embodiment will be described below.
in this embodiment, the power-on module S1 (hereinafter referred to as a trigger) is electrically connected to the positive electrode of the dc power supply, before the trigger is closed, the voltage across the first capacitor C4 is 0V, when the trigger is closed (in an initial power-on state), the voltage across the right end of the first capacitor C4 gradually decreases from the power voltage, the third conducting switch Q3 is turned on for a period of time, and in this period of time, the system is powered on and the second conducting switch Q2 is turned on through the fourth resistor R4, so as to maintain the power supply of the tool control module. When the voltage at the right end of the first capacitor C4 drops to a level where it cannot maintain the third on-switch Q3 open, the third on-switch Q3 is turned off. When the tool control module detects that the ultra-low power consumption delay reaches the preset time, the tool control module closes the second conducting switch Q2 through the fourth resistor R4, and the electric tool control device is powered off to enter an ultra-low power consumption state. At the moment, the current of the battery is the voltage of the battery divided by the first ultra-low power consumption resistor R8, and ultra-low power consumption and function completion can be realized by adjusting the resistance value of the first ultra-low power consumption resistor R8 and the capacitance value of the first capacitor C4.
example 3
Referring to fig. 3, on the basis of embodiment 1, this embodiment provides a specific application example of the ultra-low power switching module, specifically, the ultra-low power switching module includes: a second ultra-low power consumption resistor R9, a second capacitor C8, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7 and an eighth resistor R10; a fourth conducting switch Q4, a fifth conducting switch Q5; the power-on module S1 is electrically connected with the negative electrode of the DC power supply, the first end of the second capacitor C8 is electrically connected with the power-on module S1, and the first end of the second capacitor C8 is also electrically connected with the first end of the second ultra-low power consumption resistor R9; a second end of the second capacitor C8 is electrically connected with a first end of the eighth resistor R10; the second end of the second ultra-low power consumption resistor R9 is electrically connected with the positive electrode of the direct-current power supply; a first end of the fifth resistor R5 is electrically connected to the positive electrode of the dc power supply, and a first end of the fifth resistor R5 is also electrically connected to a first end of the fourth on-switch Q4; a second end of the fifth resistor R5 is electrically connected to a first end of the sixth resistor R6, and a second end of the fifth resistor R5 is further electrically connected to a second end of the fourth on-switch Q4; a first end of the sixth resistor R6 is electrically connected to a second end of the fourth conducting switch Q4, a second end of the sixth resistor R6 is electrically connected to a first end of the fifth conducting switch Q5, and a second end of the sixth resistor R6 is further electrically connected to a second end of the eighth resistor R10; a second end of the eighth resistor R10 is electrically connected to a first end of the fifth conducting switch Q5; a first end of the seventh resistor R7 is electrically connected with a second end of the fifth on-switch Q5, and a second end of the seventh resistor R7 is electrically connected with an output control pin of the tool control module; the third end of the fourth conducting switch Q4 is electrically connected with the positive electrode port of the tool control module; the third end of the fifth on-switch Q5 is electrically connected with the negative pole of the direct-current power supply; the output control pin of the tool control module is electrically connected with the negative electrode of the direct-current power supply; in the initial power-on state of the power-on module S1, the fourth conducting switch Q4 is turned on, the tool control module is initially powered on, and the fifth conducting switch Q5 is turned on; in the transition state, the tool control module may be electrically disconnected from the seventh resistor R7 according to the set delay time, and the fifth on-switch Q5 is opened; in the ultra low power state, the fourth conducting switch Q4 is open and the fifth conducting switch Q5 is open.
further, the fourth conducting switch Q4 is a PNP transistor or a PMOS transistor; the fifth conducting switch Q5 is an NPN transistor or an NMOS transistor.
The working principle or working process of the module in this embodiment will be described below.
In this embodiment, the upper electrical module S1 (hereinafter referred to as a trigger) is electrically connected to the positive electrode of the dc power supply, the voltage across the second capacitor C8 is 0V before the trigger is closed, when the trigger is closed, the voltage at the right end of the second capacitor C8 gradually increases from 0V, and during the increase, the fourth conducting switch Q4 is turned on for a period of time. During the period, the system is powered on and the fifth conducting switch Q5 is opened through the seventh resistor R7, so that the system power supply is maintained. When the system detects that the ultra-low power consumption delay reaches the preset time, the system closes the fifth conducting switch Q5 through the seventh resistor R7, the voltage of the right end of the second capacitor C8 gradually rises, and when the fourth conducting switch Q4 cannot be maintained to be opened, the system is powered down to enter an ultra-low power consumption state. At the moment, the current of the battery is the voltage of the battery divided by the second ultra-low power consumption resistor R9, and ultra-low power consumption and function completion can be realized by adjusting the resistance value of the second ultra-low power consumption resistor R9 and the capacitance value of the second capacitor C8.
example 4
Based on the same conception, the utility model also provides an electric tool, including the electric tool controlling means in the above-mentioned embodiment. Specifically, the power tool is an angle grinder.
Referring to fig. 4, the following describes a control method of the electric power tool, including:
a1, the tool control module detects the idle running time of the electric tool;
A2, if the no-load delay time reaches the preset no-load operation time, controlling the electric tool to stop;
a3, the tool control module enters an ultra-low power consumption state for timing;
a4, detecting whether the power-on module is in a power-on state;
And A5, if the ultra-low power consumption state reaches the set delay time, the tool control module controls the ultra-low power consumption switching module to switch into the ultra-low power consumption state.
referring to fig. 5, further, the control method of the electric tool further includes:
A1', if the electric tool is in abnormal protection shutdown, the tool control module enters into ultra-low power consumption state for timing.
Further, the tool control module detecting an idle running time of the power tool further comprises:
A101, judging whether the electric tool is in an idle running state or not;
and A102, starting the idle running state timing.
The following is a concrete method of controlling the electric power tool in practical use.
referring to fig. 6, in the case that the user does not turn off the power-on module (hereinafter referred to as a trigger) in time, in this case, the user pulls the trigger, the electric tool is in the no-load operation condition, the battery power of the general lithium-ion electric tool is exhausted after continuously running for about 2 hours in no-load operation, and the battery power of the angle grinder is exhausted after continuously running for about 30 minutes in no-load operation. When the user does not in time loosen the trigger, the utility model discloses a no-load running state can be judged to the controller to begin the timing, after the specific time of delay, shut down. Within this delay time, if the user is using the power tool, i.e., the controller detects a non-idle running condition, the idle delay mechanism is exited until the idle running condition is entered again. The specific time of the dead time delay is typically 30 seconds to 1 minute. The controller enters the ultra low power consumption state after a delay time after shutdown, which is typically 20 seconds to 1 minute. Within this delay time, if the user releases the trigger, the delay mechanism entering the ultra low power state is exited.
for the case of shutdown after the power tool triggers the abnormal protection mechanism:
Under the condition, a user pulls a trigger and uses the electric tool, and the electric tool stops after triggering an abnormal protection mechanism. The controller enters the ultra low power state after a delay after shutdown for a specified time, typically 20 seconds to 1 minute. Within this delay, if the user releases the trigger, the delay mechanism to enter the ultra low power state is exited.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.
Claims (7)
1. an electric tool control device, characterized by comprising:
an ultra-low power consumption switching module;
A tool control module;
a power-on module;
The power-on module is electrically connected with a direct current power supply;
The ultra-low power consumption switching module is electrically connected with the power-on module, and can form a loop with the direct-current power supply in a power-on state of the power-on module;
the tool control module is electrically connected with the ultra-low power consumption switching module, and can be connected with the direct-current power supply and form a loop in the power-on state of the power-on module, and the tool control module can also control the ultra-low power consumption switching module to be switched into the ultra-low power consumption state.
2. The power tool control device of claim 1, wherein the ultra-low power switching module comprises: the circuit comprises a first ultralow-power-consumption resistor, a first capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a first conducting switch, a second conducting switch and a third conducting switch;
wherein the content of the first and second substances,
the power-on module is electrically connected with the positive electrode of the direct-current power supply, the first end of the first capacitor is electrically connected with the power-on module, and the first end of the first capacitor is also electrically connected with the first end of the first ultra-low power consumption resistor; the second end of the first capacitor is electrically connected with the first end of the third resistor;
The second end of the first ultra-low power consumption resistor is electrically connected with the negative electrode of the direct current power supply;
The first end of the first resistor is electrically connected with the positive electrode of the direct-current power supply, and the first end of the first resistor is also electrically connected with the first end of the first conduction switch; the second end of the first resistor is electrically connected with the first end of the second resistor, and the second end of the first resistor is also electrically connected with the second end of the first conducting switch;
A first end of the second resistor is electrically connected with a second end of the first conducting switch, a second end of the second resistor is electrically connected with a first end of the second conducting switch, and a second end of the second resistor is also electrically connected with a first end of the third conducting switch;
a second end of the third resistor is electrically connected with a second end of the third conduction switch;
A first end of the fourth resistor is electrically connected with a second end of the second conduction switch, and a second end of the fourth resistor is electrically connected with an output control pin of the tool control module;
the third end of the first conduction switch is electrically connected with the anode port of the tool control module;
The third end of the second conduction switch is electrically connected with the negative electrode of the direct-current power supply;
the third end of the third conducting switch is electrically connected with the negative electrode of the direct-current power supply;
the output control pin of the tool control module is electrically connected with the negative electrode of the direct-current power supply;
In an initial power-on state of the power-on module, the third conducting switch is conducted, the first conducting switch is conducted, the tool control module is initially powered on, and the second conducting switch is conducted;
in a transition state, the third conducting switch is opened, and the tool control module can be disconnected from the fourth resistor according to the set delay time;
and in an ultra-low power consumption state, the first conducting switch is open, the second conducting switch is open, and the third conducting switch is open.
3. The power tool control device of claim 1, wherein the ultra-low power switching module comprises: the second ultra-low power consumption resistor, the second capacitor, the fifth resistor, the sixth resistor, the seventh resistor and the eighth resistor; a fourth conducting switch and a fifth conducting switch;
Wherein the content of the first and second substances,
the power-on module is electrically connected with the negative electrode of the direct-current power supply, the first end of the second capacitor is electrically connected with the power-on module, and the first end of the second capacitor is also electrically connected with the first end of the second ultra-low power consumption resistor; the second end of the second capacitor is electrically connected with the first end of the eighth resistor;
The second end of the second ultra-low power consumption resistor is electrically connected with the positive electrode of the direct current power supply;
The first end of the fifth resistor is electrically connected with the positive electrode of the direct-current power supply, and the first end of the fifth resistor is also electrically connected with the first end of the fourth conducting switch; a second end of the fifth resistor is electrically connected with a first end of the sixth resistor, and a second end of the fifth resistor is also electrically connected with a second end of the fourth conducting switch;
A first end of the sixth resistor is electrically connected to a second end of the fourth conducting switch, a second end of the sixth resistor is electrically connected to a first end of the fifth conducting switch, and a second end of the sixth resistor is also electrically connected to a second end of the eighth resistor;
A second end of the eighth resistor is electrically connected with a first end of the fifth conducting switch;
a first end of the seventh resistor is electrically connected with a second end of the fifth on-switch, and a second end of the seventh resistor is electrically connected with an output control pin of the tool control module;
The third end of the fourth conduction switch is electrically connected with the anode port of the tool control module;
The third end of the fifth conducting switch is electrically connected with the negative electrode of the direct-current power supply;
the output control pin of the tool control module is electrically connected with the negative electrode of the direct-current power supply;
in an initial power-on state of the power-on module, the fourth conducting switch is conducted, the tool control module is initially powered on, and the fifth conducting switch is conducted;
in a transition state, the tool control module can be electrically disconnected from the seventh resistor according to the set delay time, and the fifth conducting switch is opened;
and in the ultra-low power consumption state, the fourth conducting switch is open and the fifth conducting switch is open.
4. The power tool control device of claim 2, wherein the first conducting switch is a PNP transistor or a PMOS transistor; the second conducting switch and/or the third conducting switch is an NPN triode or an NMOS triode.
5. the power tool control device of claim 3, wherein the fourth conducting switch is a PNP transistor or a PMOS transistor; the fifth conducting switch is an NPN triode or an NMOS triode.
6. An electric power tool comprising the electric power tool control device according to any one of claims 1 to 5.
7. The power tool of claim 6, wherein the power tool is an angle grinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920994228.5U CN209786857U (en) | 2019-06-28 | 2019-06-28 | electric tool control device and electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920994228.5U CN209786857U (en) | 2019-06-28 | 2019-06-28 | electric tool control device and electric tool |
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| Publication Number | Publication Date |
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| CN209786857U true CN209786857U (en) | 2019-12-13 |
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| CN201920994228.5U Active CN209786857U (en) | 2019-06-28 | 2019-06-28 | electric tool control device and electric tool |
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| CN (1) | CN209786857U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190655A (en) * | 2019-06-28 | 2019-08-30 | 斯泰宝机电科技(昆山)有限公司 | A kind of electric tool control device, electric tool and control method |
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2019
- 2019-06-28 CN CN201920994228.5U patent/CN209786857U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190655A (en) * | 2019-06-28 | 2019-08-30 | 斯泰宝机电科技(昆山)有限公司 | A kind of electric tool control device, electric tool and control method |
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