CN102478792A - Electric tool - Google Patents
Electric tool Download PDFInfo
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- CN102478792A CN102478792A CN2010105651246A CN201010565124A CN102478792A CN 102478792 A CN102478792 A CN 102478792A CN 2010105651246 A CN2010105651246 A CN 2010105651246A CN 201010565124 A CN201010565124 A CN 201010565124A CN 102478792 A CN102478792 A CN 102478792A
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- electric tool
- microcontroller
- sampling resistor
- management
- synchronization device
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Abstract
The invention discloses an electric tool, which comprises a motor, an external electric tool connecting socket and a synchronous management device which is respectively and electrically connected with the motor and the external electric tool connecting socket. The synchronous management device comprises a sampling resistor and a microcontroller, wherein the sampling resistor is electrically connected with the connecting socket. After the electric tool is powered on, the connecting socket is connected with an external electric tool and the external electric tool is powered on and started up, the sampling resistor is powered on, and the microcontroller judges whether the connecting socket is connected with the external electric tool or not and whether the external electric tool is powered on and started up or not by detecting whether the sampling resistor is powered on or not. By judging whether the external electric tool is connected, powered on and started up or not through the sampling resistor, the synchronous management device can more effectively implement the synchronous management of the operation of two electric tools.
Description
Technical field
The present invention relates to a kind of electric tool, especially a kind of electric tool with management by synchronization device, for example, suction cleaner.
Background technology
Along with the development of electric tool, the scope of its application is more and more extensive.Simultaneously, being used of multiple different electric tools, also more and more widely.Therefore, also just develop the electric tool that to have sync control device, the fuselage of this electric tool is provided with the access socket, can insert another electric tool, but the electric tool that its synchro control inserts, but both synchronous operations, compounding practice.
At present; The electric tool that more commonly has sync control device on the market is a suction cleaner; It cooperates synchronous working with electric tools such as sander, reciprocating drills usually; These outside electric tools are linked on the access socket that is arranged on the suction cleaner, control both synchronous operations by the sync control device of suction cleaner then.
This sync control device normally adopts mutual inductor to respond to and inserts whether inserted outside electric tool and energising startup in the socket.But because the character of mutual inductor itself causes its inductive effects and insensitive sometimes,, possibly have the malfunctioning situation generation of induction, thereby cause both can not synchronous operation, or synchronous operation be poor if too small through electric current.
Summary of the invention
For the deficiency of the management by synchronization performance of the management by synchronization device that overcomes existing electric tool, the present invention provides a kind of electric tool, its management by synchronization device can efficient synchronization management himself and the outside electric tool synchronous operation between the two that inserts.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of electric tool; It comprises that motor, outside electric tool insert socket and insert the management by synchronization device that socket electrically connects with motor and outside electric tool respectively; Wherein the management by synchronization device includes sampling resistor and microcontroller, and wherein sampling resistor electrically connects with the access socket; After the electric tool energising; When the access socket inserts outside electric tool and energising startup; Sampling resistor promptly can be switched on; Whether microcontroller switches on through detecting sampling resistor, and then judges and insert whether socket inserts outside electric tool and energising starts, thereby implements the synchronous operation bookkeeping between two electric tools.
Further, in different embodiments, wherein whether the microcontroller of management by synchronization device has voltage through detecting sampling resistor, and then judges and insert whether socket inserts outside electric tool and energising starts.
Further, in different embodiments, wherein the management by synchronization device includes controllable silicon, and microcontroller is controlled motor respectively with high and low two kinds of different output powers output through the control controllable silicon.
Further; In different embodiments; Wherein be provided with first default value in the microcontroller, microcontroller is according to the magnitude of voltage of the detected sampling resistor comparative result greater than first default value, through the SCR control motor with high power way of output output power.
Further, in different embodiments, wherein the management by synchronization device includes first operational amplifier, and it electrically connects with sampling resistor and microcontroller respectively.
Further; In different embodiments; Wherein be provided with second default value in the microcontroller, microcontroller is according to the magnitude of voltage of the detected sampling resistor comparative result greater than second default value, through the SCR control motor with low-power way of output output power.
Further, in different embodiments, wherein the management by synchronization device includes second operational amplifier, and it electrically connects with sampling resistor and microcontroller respectively.
Further, in different embodiments, wherein microcontroller can detect the current value of the main circuit of electric tool, and when finding it greater than 15 ampere-hours, microcontroller can send instruction and break off main circuit.
Further, in different embodiments, wherein microcontroller has delay function.
Further, in different embodiments, the electric tool that wherein the present invention relates to is a suction cleaner.
The invention has the beneficial effects as follows; Because the present invention adopts sampling resistor to substitute mutual inductor and inserts the signal sampling that the electric tool energising starts; Can overcome mutual inductor sample under-sensitive problem effectively, make the management by synchronization device can be more efficiently management by synchronization between the operation of enforcement two electric tools.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the building-block of logic of the electric tool that the present invention relates to.
Embodiment
The present invention relates to a kind of electric tool, it includes the management by synchronization device, is used for management by synchronization and electric tool (for example suction cleaner) that the present invention relates to and outside electric tool (for example, sander, reciprocating drill, electric hammer or the like) synchronous operation between the two that inserts.
See also shown in Figure 1, the management by synchronization device include sampling resistor, microcontroller (Micro Controller Unit, MCU) and controllable silicon.Wherein microcontroller electrically connects with sampling resistor and controllable silicon respectively, and controls both operations.For controllable silicon, microcontroller comprises its operation, makes its conducting or closes; For conducting, also can comprise the mode of conducting, the control power supply is exported to the power size of motor, and then control motor output power is high and low.For sampling resistor, microcontroller to its operation then be sampling its whether switch on, and then obtain its current value information of passing through and/or magnitude of voltage information.
Wherein controllable silicon electrically connects with electric tool its own power source and motor respectively, and whether its conducting, and whether the decision electric tool self turns round.Microcontroller is through whether conducting of the circuit between SCR control power supply and motor; And through controlling the silicon controlled conduction mode: first, second conduction mode; The control power supply is exported to the power size of motor, thereby makes that motor can be respectively with high or low power output.
Sampling resistor then is to insert socket with electric tool its own power source and outside electric tool respectively to be connected.When the access socket inserts outside electric tool; Under the situation of energising; Electric tool its own power source, sampling resistor and the outside electric tool that inserts can form the circuit of a conducting, thereby make the electric tool its own power source for the outside electric tool that inserts power is provided.And sampling resistor energising at this moment, it has electric current and passes through, and also can there be voltage in its two ends simultaneously.At this moment microcontroller is to its electrifying information sampling, for example to the operation of sampling resistor; Obtain its current value information of passing through or magnitude of voltage information; Then with microcontroller in preset first standard figures (it typically is 0, also can be other numerical value and indefinite certainly) compare; When sampling numerical value during, can judge that electric tool has inserted outside electric tool and energising starts greater than its interior first standard figures.
After microcontroller judges that inserting socket inserts outside electric tool and power on circuitry startup, promptly can operate the controllable silicon conducting, thereby realize electric tool and the outside synchronous operation that inserts between electric tool.And when microcontroller judge sampling resistor do not have electric current through or do not have voltage; Can think that promptly the access socket does not insert outside electric tool or turning circuit interrupts; Thereby the operation controllable silicon is closed, and then makes the power interruption of electric tool for himself motor power is provided.This interruption can be instant interruption, also can be to postpone interrupting behind the certain hour, and this function is for microcontroller, and it has delay function and can realize.And can confirm voluntarily concrete time delay, for example, specifically can be 1 second, 2 seconds, 3 seconds, 4 seconds, 5 seconds, 6 seconds, 7 seconds, 8 seconds, 9 seconds, 10 seconds, 15 seconds, 20 seconds, 25 seconds, 30 seconds or the like, and unrestricted.
Further, for the numerical value of avoiding the data that microcontroller sampling obtains is too little, when comparing with first standard figures, it is disconnected erroneous judgement to occur.One first operational amplifier can be set, to amplify the sampling numerical value that obtains between microcontroller and sampling resistor.
Further, in some cases, can there be the situation of the peak power of the electric tool that restriction uses in some country.And the electric tool of two synchronous operations if be powerful electric tool all, the situation that both power stacks surpass limit maximum power then might occur.At this moment, microcontroller can be through control silicon controlled conduction mode, and restriction electric tool power supply is the power that the motor of self provides, and makes motor with lower power output, thereby satisfies the requirement of Power Limitation.
Specifically can be; Second standard figures is set in the microcontroller; The sampling numerical value that obtains when sampling is just greater than first standard figures during less than second standard figures, and the microprocessor controls controllable silicon is with the first mode conducting, just; Do not limit the electric tool power supply and power is provided, thereby make motor export with high power for self motor.And the sampling numerical value that obtains when sampling is during simultaneously greater than first, second standard figures, and the microprocessor controls controllable silicon is with the second mode conducting, and just, restriction electric tool power supply provides power for the motor of self, thereby makes motor export with low-power.
Further, for the numerical value of avoiding the data that microcontroller sampling obtains is too little, when comparing with second standard figures, it is disconnected erroneous judgement to occur.One second operational amplifier can be set, to amplify the sampling numerical value that obtains between microcontroller and sampling resistor.First operational amplifier and second operational amplifier are connected in parallel between the two.
Further, for avoiding being provided with the electric tool of management by synchronization device, the electric current that flows through in its main circuit is excessive, the danger that might produce.Microcontroller in the management by synchronization device also can detect the current value of the electric current that passes through in the electric tool main circuit.When the current value of finding main circuit surpasses certain numerical value, promptly can send instruction and interrupt main circuit, and then make the electric tool of electric tool and access cut off the power supply.And the lowest high-current value of the main circuit that limits can set up on their own according to actual needs, for example, specifically can be: 10 amperes, 13 amperes, 15 amperes, 18 amperes, 20 amperes, 22.5 amperes, 25 amperes, 30 amperes or the like, and unrestricted.
The present invention adopts sampling resistor to substitute the signal sampling that mutual inductor inserts electric tool, can overcome mutual inductor sample under-sensitive problem effectively, makes the management by synchronization of management by synchronization device between can more efficiently enforcement two electric tools operation.
Claims (10)
1. electric tool; It comprises that motor, outside electric tool insert socket and insert the management by synchronization device that socket electrically connects with motor and outside electric tool respectively; It is characterized in that; Wherein the management by synchronization device includes sampling resistor and microcontroller, and wherein sampling resistor electrically connects with the access socket; After the electric tool energising; When the access socket inserts outside electric tool and energising startup; Sampling resistor promptly can be switched on; Whether microcontroller switches on through detecting sampling resistor, and then judges and insert whether socket inserts outside electric tool and energising starts, thereby implements the synchronous operation bookkeeping between two electric tools.
2. electric tool as claimed in claim 1 is characterized in that, wherein whether the microcontroller of management by synchronization device has voltage through detecting sampling resistor, and then judges and insert whether socket inserts outside electric tool and energising starts.
3. electric tool as claimed in claim 1 is characterized in that wherein the management by synchronization device includes controllable silicon, and microcontroller is controlled motor respectively with high and low two kinds of different output powers output through the control controllable silicon.
4. electric tool as claimed in claim 3; It is characterized in that; Wherein be provided with first default value in the microcontroller, microcontroller is according to the magnitude of voltage of the detected sampling resistor comparative result greater than first default value, through the SCR control motor with high power way of output output power.
5. electric tool as claimed in claim 4 is characterized in that wherein the management by synchronization device includes first operational amplifier, and it electrically connects with sampling resistor and microcontroller respectively.
6. electric tool as claimed in claim 3; It is characterized in that; Wherein be provided with second default value in the microcontroller, microcontroller is according to the magnitude of voltage of the detected sampling resistor comparative result greater than second default value, through the SCR control motor with low-power way of output output power.
7. electric tool as claimed in claim 6 is characterized in that wherein the management by synchronization device includes second operational amplifier, and it electrically connects with sampling resistor and microcontroller respectively.
8. electric tool as claimed in claim 1 is characterized in that wherein microcontroller can detect the current value that the electric tool main circuit passes through, when its greater than 15 ampere-hours, microcontroller can send the main circuit that electric tool is broken off in instruction.
9. electric tool as claimed in claim 1 is characterized in that wherein microcontroller has delay function.
10. electric tool as claimed in claim 1 is characterized in that, it is a suction cleaner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105651246A CN102478792A (en) | 2010-11-30 | 2010-11-30 | Electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105651246A CN102478792A (en) | 2010-11-30 | 2010-11-30 | Electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102478792A true CN102478792A (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105651246A Pending CN102478792A (en) | 2010-11-30 | 2010-11-30 | Electric tool |
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| Country | Link |
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| CN (1) | CN102478792A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105629778A (en) * | 2014-11-28 | 2016-06-01 | 天佑电器（苏州）有限公司 | Combined electric tool collaboration system and method |
| CN105988383A (en) * | 2015-02-11 | 2016-10-05 | 天佑电器（苏州）有限公司 | Combination tool cooperation system and cooperation method thereof |
| CN109656156A (en) * | 2017-10-12 | 2019-04-19 | 苏州宝时得电动工具有限公司 | Electric tool starts control method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2702814Y (en) * | 2004-05-17 | 2005-06-01 | 张汉诚 | Combined dust collecting controller for electric abrasive finishing machine |
| CN2820458Y (en) * | 2005-07-06 | 2006-09-27 | 孔钊 | Combined electric tool and its synchronous controller |
| EP2047784A2 (en) * | 2007-10-11 | 2009-04-15 | BLACK & DECKER INC. | Vacuum electronic switch detection system |
| CN201227237Y (en) * | 2008-02-05 | 2009-04-29 | 布莱克和戴克公司 | Vacuum cleaner |
| CN202078264U (en) * | 2010-11-30 | 2011-12-21 | 天佑电器（苏州）有限公司 | Electric tool |
-
2010
- 2010-11-30 CN CN2010105651246A patent/CN102478792A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2702814Y (en) * | 2004-05-17 | 2005-06-01 | 张汉诚 | Combined dust collecting controller for electric abrasive finishing machine |
| CN2820458Y (en) * | 2005-07-06 | 2006-09-27 | 孔钊 | Combined electric tool and its synchronous controller |
| EP2047784A2 (en) * | 2007-10-11 | 2009-04-15 | BLACK & DECKER INC. | Vacuum electronic switch detection system |
| CN201227237Y (en) * | 2008-02-05 | 2009-04-29 | 布莱克和戴克公司 | Vacuum cleaner |
| CN202078264U (en) * | 2010-11-30 | 2011-12-21 | 天佑电器（苏州）有限公司 | Electric tool |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105629778A (en) * | 2014-11-28 | 2016-06-01 | 天佑电器（苏州）有限公司 | Combined electric tool collaboration system and method |
| CN105988383A (en) * | 2015-02-11 | 2016-10-05 | 天佑电器（苏州）有限公司 | Combination tool cooperation system and cooperation method thereof |
| CN109656156A (en) * | 2017-10-12 | 2019-04-19 | 苏州宝时得电动工具有限公司 | Electric tool starts control method and device |
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Application publication date: 20120530 |
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