CN201167306Y - Switch of electric tool - Google Patents
Switch of electric tool Download PDFInfo
- Publication number
- CN201167306Y CN201167306Y CNU2008200035706U CN200820003570U CN201167306Y CN 201167306 Y CN201167306 Y CN 201167306Y CN U2008200035706 U CNU2008200035706 U CN U2008200035706U CN 200820003570 U CN200820003570 U CN 200820003570U CN 201167306 Y CN201167306 Y CN 201167306Y
- Authority
- CN
- China
- Prior art keywords
- electric tool
- power supply
- switch
- handle
- control circuit
- Prior art date
- 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 - Fee Related
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Abstract
The utility model discloses a power supply control switch for hand-held type electric tools, which is characterized in that a circuit composed of a thyristor and electronic components is installed in a handle of a hand-held type electric tool, and the electric tool can be turned on and off by pressing a touch button switch of the handle of the electric tool, so as to control the power supply of the electric tool. The power supply control switch provided in the utility model can automatically cut off the power supply of the electric tool after being switched off; and has the advantages of reasonable structure, easy operation, good safety, long service life, and no sparking.
Description
Affiliated technical field
The utility model relates to a kind of electric tool switch, the power control switch that uses on particularly a kind of hand held electric tool.
Background technology
The electric tool of extensive use in every profession and trade at present, the function of the construction of switch that it is designed are to be used for opening or powered-down, so that the control motor moves or shuts down.Known electric tool, its power control switch are mechanical switch, its switch open and close all and must the electric tool user to lift the switch trigger operated and finish.And the electric tool user is using the electric tool attaching plug to connect power supply earlier, cause the user under the situation of not defence, to start electric tool running (under switch is in opening) suddenly, cause great bodily injury and damage probably to human body and property, be danger close, have big potential safety hazard.
Summary of the invention
It is a kind of rational in infrastructure that the purpose of this utility model is to provide, and operates light, safe, long service life no-spark generation, has the electric tool switch that the outage back is closed make and break and circuit automatically.
For achieving the above object, the utility model is to increase an electronic installation on electric tool, and this device adopts the electronics thyristor to replace mechanical switch.
Description of drawings
Fig. 1 is a hand held electric tool part-structure schematic diagram;
Fig. 2 is a hand held electric tool control circuit schematic diagram;
Specific implementation
As shown in Figure 1,1. increase a space in the housing at the hand held electric tool handle and place control circuit 3., this space motor 2. and button 4. between, 4. button is installed in handle tail end 1., 5. power line draws from handle tail end 1..
As shown in Figure 2,3. the power circuit of control circuit converts 220 volts of alternating voltages to direct voltage through step-down rectifying circuit, and 4. supply control circuit is made power supply and used.When electric tool was brought into use, 1. switching circuit was in closed condition, and 2. motor does not have electric current to pass through, and 2. motor can not rotate; Press the button 5., 1. 4. control circuit apply voltage to switching circuit, 1. thyristor conducting of switching circuit, and 2. motor has electric current to pass through, and motor rotates.After actuation button finger 5. left, button 5. contact recovered off-state under the effect of spring force, and 4. control circuit continues to keep 1. providing voltage to switching circuit; If will close electric tool, press the button again 5., 4. control circuit stops 1. to provide voltage to switching circuit, and 1. switching circuit turn-offs, and 2. motor stops operating.
Claims (4)
1. a hand held electric tool switch is characterized in that electric tool installation electronic switch control circuit, is opened or is turn-offed by high-power thyristor control power supply.
2. according to claim 1, by the high-power thyristor conducting or close realization the electric tool power supply is opened or turn-offed.
3. according to claim 1, the electric tool handle is adorned a contact button switch.
4. according to claim 1, electronic switch control circuit is installed in the electric tool handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200035706U CN201167306Y (en) | 2008-03-24 | 2008-03-24 | Switch of electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200035706U CN201167306Y (en) | 2008-03-24 | 2008-03-24 | Switch of electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201167306Y true CN201167306Y (en) | 2008-12-17 |
Family
ID=40192698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200035706U Expired - Fee Related CN201167306Y (en) | 2008-03-24 | 2008-03-24 | Switch of electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201167306Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107042325A (en) * | 2015-11-11 | 2017-08-15 | 罗伯特·博世有限公司 | Electric hand-held power tool |
-
2008
- 2008-03-24 CN CNU2008200035706U patent/CN201167306Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107042325A (en) * | 2015-11-11 | 2017-08-15 | 罗伯特·博世有限公司 | Electric hand-held power tool |
| US11413736B2 (en) | 2015-11-11 | 2022-08-16 | Robert Bosch Gmbh | Hand-held power tool |
| CN107042325B (en) * | 2015-11-11 | 2023-11-14 | 罗伯特·博世有限公司 | Hand-held electric tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20110324 |