CN202078264U - Electric tool - Google Patents
Electric tool Download PDFInfo
- Publication number
- CN202078264U CN202078264U CN2010206325165U CN201020632516U CN202078264U CN 202078264 U CN202078264 U CN 202078264U CN 2010206325165 U CN2010206325165 U CN 2010206325165U CN 201020632516 U CN201020632516 U CN 201020632516U CN 202078264 U CN202078264 U CN 202078264U
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- CN
- China
- Prior art keywords
- electric tool
- microcontroller
- sampling resistor
- management
- synchronization device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses an electric tool, which comprises a motor, an external electric tool connection socket and a synchronization management device, wherein the synchronization management device is electrically connected with the motor and the external electric tool connection socket. The synchronization management device comprises a sampling resistor and a microcontroller, wherein the sampling resistor is electrically connected with the connection socket; after the electric tool is electrified, when the connection socket is connected with an external electric tool, and the external electric tool is started electrically, the sampling resistor is also electrified, and the microcontroller judges whether the connection socket is connected to the external electric tool and the external electric tool is started electrically by detecting whether the sampling resistor is electrified. By adopting the sampling resistor to judge whether the connection socket is connected with the external electric tool and the external electric tool is started electrically, the synchronization management device can more effectively implement the synchronization management for the operating of two electric tools.
Description
Technical field
The utility model relates to a kind of electric tool, especially a kind of electric tool with management by synchronization device, for example, dust catcher.
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 Synchronization 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 dust catcher, it cooperates synchronous working with electric tools such as sander, percussion drills usually, these outside electric tools are linked on the access socket that is arranged on the dust catcher, control both synchronous operation by the sync control device of dust catcher then.
This sync control device normally adopts transformer to respond to and inserts whether inserted outside electric tool and energising startup in the socket.But because the character of transformer itself causes its inductive effects and insensitive sometimes,, may have the malfunctioning situation generation of induction, thereby cause both can not synchronous operation, or synchronous operation be poor if too small by electric current.
The utility model content
For the deficiency of the management by synchronization performance of the management by synchronization device that overcomes existing electric tool, the utility model 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 scheme that its technical problem that solves the utility model adopts 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 by detecting sampling resistor, and then judge and insert whether socket inserts outside electric tool and energising starts, thereby implement the synchronous operation bookkeeping between two electric tools.
Further, in different embodiments, wherein whether the microcontroller of management by synchronization device has voltage by 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 by 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, by the SCR control motor with high power way of output power output.
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, by the SCR control motor with low-power way of output power output.
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 disconnect main circuit.
Further, in different embodiments, wherein microcontroller has delay function.
Further, in different embodiments, wherein the electric tool that relates to of the utility model is a dust catcher.
The beneficial effects of the utility model are, because the utility model adopts sampling resistor to substitute transformer 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 drawings and Examples the utility model is further specified.
Fig. 1 is the building-block of logic of the electric tool that relates to of the utility model.
The specific embodiment
The utility model relates to a kind of electric tool, it includes the management by synchronization device, be used for management by synchronization and the utility model electric tool (for example dust catcher) that relates to and outside electric tool (for example, sander, percussion 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 ControllerUnit, 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 power output 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 by whether conducting of the circuit between SCR control power supply and motor, and by 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 the electric tool that makes the electric tool its own power source insert for the outside provides power.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 the operation of sampling resistor, be to its electrifying information sampling, for example, obtain its current value information of passing through or magnitude of voltage information, then with microcontroller in default 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 by 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 interruptions of electric tool provide power for himself motor.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 determine 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 the restriction peak power then might occur.At this moment, microcontroller can be by control silicon controlled conduction mode, and restriction electric tool power supply makes motor with lower power output, thereby satisfies the requirement of Power Limitation for the power that self motor provides.
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, the microprocessor control controllable silicon is with the first mode conducting, just, do not limit the electric tool power supply and provide power, 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 control 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 utility model adopts sampling resistor to substitute the signal sampling that transformer inserts electric tool, 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.
Claims (6)
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 whether the management by synchronization device includes the sampling resistor that electrically connects with described access socket and can switch on by detecting sampling resistor, and then judge and insert whether socket inserts outside electric tool and energising starts, thereby implement the microcontroller of the synchronous operation bookkeeping between two electric tools.
2. electric tool as claimed in claim 1 is characterized in that, wherein the management by synchronization device includes one and is subjected to described microprocessor control and can controls described motor respectively with the controllable silicon of high and low two kinds of different output powers output.
3. electric tool as claimed in claim 2 is characterized in that wherein the management by synchronization device includes first operational amplifier, and it electrically connects with sampling resistor and microcontroller respectively.
4. electric tool as claimed in claim 3 is characterized in that wherein the management by synchronization device includes second operational amplifier, and it electrically connects with sampling resistor and microcontroller respectively.
5. electric tool as claimed in claim 1 is characterized in that wherein microcontroller has delay function.
6. electric tool as claimed in claim 1 is characterized in that, it is a dust catcher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206325165U CN202078264U (en) | 2010-11-30 | 2010-11-30 | Electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206325165U CN202078264U (en) | 2010-11-30 | 2010-11-30 | Electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202078264U true CN202078264U (en) | 2011-12-21 |
Family
ID=45338924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206325165U Expired - Lifetime CN202078264U (en) | 2010-11-30 | 2010-11-30 | Electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202078264U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478792A (en) * | 2010-11-30 | 2012-05-30 | 天佑电器（苏州）有限公司 | Electric tool |
| CN112601481A (en) * | 2018-06-29 | 2021-04-02 | 罗伯特·博世有限公司 | System comprising a suction device and a hand-held power tool, and method for operating the system |
-
2010
- 2010-11-30 CN CN2010206325165U patent/CN202078264U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478792A (en) * | 2010-11-30 | 2012-05-30 | 天佑电器（苏州）有限公司 | Electric tool |
| CN112601481A (en) * | 2018-06-29 | 2021-04-02 | 罗伯特·博世有限公司 | System comprising a suction device and a hand-held power tool, and method for operating the system |
| CN112601481B (en) * | 2018-06-29 | 2023-03-10 | 罗伯特·博世有限公司 | System comprising a suction device and a hand-held power tool, and method for operating the system |
| US11998164B2 (en) | 2018-06-29 | 2024-06-04 | Robert Bosch Gmbh | System formed of suction device and hand-held power tool, and method for operating the system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111221 |