CN1707937A - Operator control device of an electric power tool - Google Patents
Operator control device of an electric power tool Download PDFInfo
- Publication number
- CN1707937A CN1707937A CN 200510075589 CN200510075589A CN1707937A CN 1707937 A CN1707937 A CN 1707937A CN 200510075589 CN200510075589 CN 200510075589 CN 200510075589 A CN200510075589 A CN 200510075589A CN 1707937 A CN1707937 A CN 1707937A
- Authority
- CN
- China
- Prior art keywords
- operating means
- executive component
- electronic control
- housing
- potentiometer
- 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.)
- Granted
Links
- 230000001105 regulatory effect Effects 0.000 claims description 29
- 239000004065 semiconductor Substances 0.000 claims description 19
- 230000000694 effects Effects 0.000 claims description 6
- 230000005669 field effect Effects 0.000 claims description 2
- 238000009966 trimming Methods 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000002349 favourable effect Effects 0.000 description 5
- 239000004020 conductor Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000017060 Arachis glabrata Nutrition 0.000 description 1
- 241001553178 Arachis glabrata Species 0.000 description 1
- 235000010777 Arachis hypogaea Nutrition 0.000 description 1
- 235000018262 Arachis monticola Nutrition 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000266 injurious effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000020232 peanut Nutrition 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/14—Adjustable resistors adjustable by auxiliary driving means
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Adjustable Resistors (AREA)
- Control Of Electric Motors In General (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The invention relates to an operator-control device (1) of an electric power tool, which comprises an operator-control element (10) that can be actuated in a linear movement such as a trigger, and comprises an electronic control (14) which serves to control an electric motor, wherein the electronic control (14) has a resistor that is variably adjustable by means of a final control element (44) such as a wiper/slider and sets an operating state of the electric power tool, and wherein the operator-control element (10) and the final control element (44) are operatively connected to each other by means of a connecting device (24, 48), wherein the adjustable resistor is realized as a potentiometer (35), particularly as a rotary potentiometer (36) or as a trimming potentiometer, and the connecting device (24, 48) is an eccentric device (24, 26, 50, 52). The invention also relates to an operator-control device module system used in an operator-control device (1).
Description
Technical field
The present invention relates to a kind of operating means of electric tools, have the executive component that in rectilinear motion, to operate and have an electronic control part that is used to control motor, wherein this electronic control part have an operating state of regulating electric tools, by the resistance that a regulating part can be regulated with changing, reaching wherein, this executive component and regulating part act on connection each other by a jockey.
The invention still further relates to a kind of operating means modular system that is used for this operating means, this system or have at least two executive components and at least one electronic control part or have at least one executive component and at least two electronic control parts, wherein each executive component has one first connector and each regulating part has one second connector, can act on connection each other so that the effect by described first and second connector of each regulating part and each executive component is connected.
Background technology
The operating means that is used for electric tools is known.This operating means is usually directed to the electronic control part and the executive component that is located at enclosure interior at least in part that are arranged in the housing.Wherein electronic control part has a power semiconductor usually, and it is regulated by pulse width modulating signal and is applied on the motor with the adjustable average voltage that changes like this.Here the rated value of pulse duration is predetermined by an adjustable variable-resistance resistance value.This resistance can by the operator of electric tools by one can the rectilinear motion operation executive component regulate.Wherein executive component is connected with a regulating part (sliding contact) effect by jockey, and this regulating part reaches there according to its end of location change resistance guide rail and the resistance between the contact finger in slip on the resistance guide rail with a contact finger.In its technology implementation, the resistance guide rail is applied in voltage and measures the voltage that obtains between an end of contact finger and resistance guide rail.Therefore the voltage that the is extracted fingertip that connects forms confirmable functional relationship along the space orientation of resistance guide rail.In the case, this resistance guide rail also can make the tap of a plurality of discrete resistors that are one another in series.But its shortcoming is that the manufacturing cost of contact finger and resistance guide rail is high and always must individually carry out adaptive for different operating means.
Summary of the invention
According to the present invention, the operating means of an electric tools has been proposed, have the executive component that in rectilinear motion, to operate and have an electronic control part that is used to control motor, wherein this electronic control part has a resistance operating state of regulating electric tools, that can regulate by a regulating part with changing, and wherein this executive component and regulating part act on connection each other by a jockey, wherein, this adjustable resistance is configured as potentiometer, especially rotating potentiometer or trimmer potentiometer; And jockey is an eccentric.
This is very favorable because can use now standard, low-cost parts realize variable resistance.The application of potentiometer, especially rotating potentiometer can realize in this wise that promptly executive component is connected by an eccentric with regulating part.This means, the rectilinear motion of this executive component be converted into change the potentiometer resistance value, the rotatablely moving of regulating part.Configuration on eccentric is decided, especially make with regard to the inswept much rotary areas of potentiometer with regard to the stroke of pushing along executive component, can be by suitable design or definite size of electronic control part, when needing by using microcontroller, the operating characteristic of coming predetermined required electric tools relatively with the operation of executive component.
In a favourable configuration of the present invention, on potentiometer, be provided with a lever that is used for the adjusted part, this lever has a bolt on its end away from the rotation of regulating part.Therefore simply mode, i.e. operation by lever come the resistance that the adjusted part reaches influences potentiometer thus.
Advantageously, in executive component, be configured with an elongated hole that is used to insert described bolt.Therefore can make the motion in one direction definitely of this bolt by executive component, and this bolt on the other direction, promptly along elongated hole vertically on can freely move.This converts to for the rectilinear motion with executive component, and to rotatablely move be favourable.
In a further configuration of the present invention, electronic control part has at least one semiconductor element that is used for motor is supplied with electrical power.Therefore available simple mode, especially realize the control of motor by the electric current of pulse-width modulation.
Advantageously, this semiconductor element is configured field effect transistor (MOSFET).
Advantageously, electronic control part is arranged on the printed circuit board (PCB).The element of electronic control part comprises rotating potentiometer and possible semiconductor element thus, and the electrical connection between each element can realize in simple especially mode.Because the element of electronic control part also obtains enough mechanical fixation on printed circuit board (PCB), so this electronic control part can be irrespectively manufactured with other element, for example executive component.Operating means can advantageously be constructed like this: executive component does not have electronic component, and only is made up of injection-molded parts (being used for housing) and/or bending ram or punching press pressed part (being used for electrical contact).Therefore because other element of all of electronic control part all disposes on the printed circuit board (PCB), between electronic control part and executive component, only need simple the electrical connection.
Advantageously, executive component is set in the housing at least in part.The part of executive component is set at the outside of housing in the case, can be operated by the operator there, and another part is positioned at enclosure interior, here can form with the effect of regulating part to be connected.
In a favourable configuration of the present invention, potentiometer is set at and reaches the outside that semiconductor element is set at housing in the housing.The functional circuit that can add other on the one hand thus now with plain mode is because semiconductor element is easy to use.On the other hand the semiconductor element of housing outside during when needs simply mode be cooled.Based on employed printed circuit board (PCB), the layout of the semiconductor element that is proposed can realize with plain mode, arranges because only need consider the variation of printed conductor, for example increases printed conductor or other semiconductor element is installed.
Advantageously, housing and/or semiconductor element have been disposed at least one coldplate.Can cause favourable cooling thus.
Advantageously, housing has been disposed be used for housing is fixed on retaining element on the printed circuit board (PCB).Can realize thus printed circuit board (PCB) and housing reliably, and being connected of also can dismantling again as required.In the case advantageously, when housing only a side open wide and then when housing is connected with printed circuit board (PCB) this side covered or seal by a part of printed circuit board (PCB) at least.Constitute a chamber thus, the electronic control part and the potentiometer especially of its protection at least a portion are in order to avoid injurious effects, for example dust.
In a further configuration of the present invention, retaining element is configured to contact plug or steady pin.This housing is fixed on the printed circuit board (PCB) with can being similar to an electric device thus.If this housing will have other, especially standardized switching function (for example conversion to the right/left), then this retaining element is made to contact, and they are connected with at least one terminal of electronic control part when assembling then.These contacts especially can be the parts of the electric mechanical switch contact of housing in the case.If this housing does not have electric device, then retaining element can constitute steady pin.Though these pins can be welded in as element on the printed circuit board (PCB), unreal incumbent what electric work energy.
The invention still further relates in addition and have operating means modular system above-mentioned one or more features, that be used for operating means, this system or have at least two executive components and at least one electronic control part or have at least one executive component and at least two electronic control parts, wherein each executive component has one first connector and each regulating part has one second connector, so that each regulating part is connected and can effectively connects each other with the effect of each executive component by first and second connector, wherein first and second connector constitutes an eccentric.This modular system can allow different executive components combined with different electronic control parts.It can realize in this wise, and promptly each regulating part has one first connector, especially has the lever of a bolt and each executive component and have second connector, especially being used in executive component and insert the elongated hole of this bolt.This means in actual applications, can produce different executive components (for example in shape, color, material aspect difference) and different electronic control part (for example difference aspect electrical characteristics or envelop of function), wherein then can make each executive component and each electronic control part combined when needed based on to a certain degree standard interface.Can using very thus, the executive component and the electronic control part of peanut produce diversified operating means.
Description of drawings
Describe the present invention in detail by an embodiment now.Here accompanying drawing shows the exploded view of the operating means of an electric tools.
Embodiment
The operating means 1 of an electric tools has been shown in the accompanying drawing, and it has an executive component 10, and this executive component partly is arranged in the housing 12, and it also has an electronic control part 14, and this electronic control part is arranged on the printed circuit board (PCB) 16.This executive component 10 has a push rod 18, and this push rod can move along a motion direction lines 20 that is decorated with double-head arrow point-blank, and this executive component 10 also has a pressure button cover (Dr ü ckerkappe) 22.A zone of executive component 10 is implemented as first connector 24 and is had an elongated hole 26, and the longitudinal extension direction of this elongated hole and the direction of motion of executive component are vertically directed.Be provided with a simple circuit in housing 12, the terminal of this circuit stretches out from housing 12 by contact plug 28 and solder-bump 30.Described circuit is used for the direct processing of voltage polar switching on a processing of the position of change over switch 32/left and/or the motor to the right.
Rotating potentiometer 36 has a regulating part 44 of being represented by chain-dotted line, and it can rotate and cause the different resistance values of rotating potentiometer 36 around rotation 46 on different turned positions.This regulating part 44 has been disposed one second connector 48, this second connector have a lever 50 and one lever 50 away from the bolt 52 on the end of the rotation 46 of regulating part 44.Here this bolt 52 is by sizing and layout in this wise, so that this bolt 52 is engaged in the elongated hole 26 in the assembled state of operating means 1.
When obtaining following function under the situation that operating means 1 assembles: when the operator will operate this electric tools, he was applied to a pressure on the executive component 10, so that pressure button cover 22 is near housing 12.The displacement of push rod 18 and the displacement that has therefore also produced first connector 24 that comprises elongated hole 26 have been produced thus.Because bolt 52 is engaged in the elongated hole 26, so the displacement of elongated hole has also caused the displacement of bolt 52, the displacement of this bolt causes the rotation of regulating part 44 again by lever 50.Because bolt 52 on a circuit orbit around rotation 46 motion, therefore also one with the horizontal direction of motion direction lines 20 on the space displacement of generation bolt 52.This component will be received by the degree of freedom that allows by elongated hole 26.The resistance value of the rotating potentiometer 36 that the rotation by regulating part 44 produces change by electronic control part 14 detect and convert to one be used for semiconductor element 34, altered pulse duration of altered control signal-promptly.Can obtain different resistance values in the rotating potentiometer 36 for push stroke along the difference of motion direction lines 20, these resistance values will convert the different pulse durations that are used to control semiconductor element 34 to by electronic control part 14.In this way, can control or regulate the motor that this operating means 1 is given in configuration by this operating means 1.
Claims (12)
1. the operating means of an electric tools (1), have the executive component that in rectilinear motion, to operate (10) and have an electronic control part (14) that is used to control motor, wherein this electronic control part (14) has the operating state of an adjusting electric tools, the resistance that can regulate by a regulating part (44) with changing, and wherein this executive component (10) and regulating part (44) by a jockey (24,48) effect connects each other, and it is characterized in that: this adjustable resistance is configured as potentiometer (35), especially rotating potentiometer (36) or trimmer potentiometer; And jockey (24,48) is an eccentric (24,26,50,52).
2. according to the operating means (1) of claim 1, it is characterized in that: be provided with a lever (50) that is used for adjusted part (44) on potentiometer (35), this lever has a bolt (52) on the end of its rotation away from regulating part (44) (46).
3. according to one operating means (1) in the above claim, it is characterized in that: in executive component (10), be configured with an elongated hole (26), be used to cooperate a bolt (52).
4. according to one operating means (1) in the above claim, it is characterized in that: described electronic control part (14) has at least one and is used for semiconductor element (34) to the motor supply of electrical energy.
5. according to the operating means (1) of claim 4, it is characterized in that: described semiconductor element (34) is constructed to field effect transistor MOSFET.
6. according to one operating means (1) in the above claim, it is characterized in that: described electronic control part (14) is arranged on the printed circuit board (PCB) (16).
7. according to one operating means (1) in the above claim, it is characterized in that: described executive component (10) is set in the housing (12) at least in part.
8. according to the operating means (1) of claim 7, it is characterized in that: described potentiometer (35) is set at and reaches the outside that semiconductor element (34) is set at housing (12) in the housing (12).
9. according to one operating means (1) in claim 7 and 8, it is characterized in that: housing (12) and/or semiconductor element (34) have been disposed at least one coldplate (54).
10. according to one operating means (1) in the claim 7 to 9, it is characterized in that: housing (12) has been disposed be used for housing (12) is fixed on retaining element on the printed circuit board (PCB) (16).
11. the operating means (1) according to claim 10 is characterized in that: these retaining elements are configured to contact plug or steady pin (28).
12. be used for operating means modular system according to one of claim 1 to 11 or multinomial operating means (1), this system or have at least two executive components (10) and at least one electronic control part (14) or have at least one executive component (10) and at least two electronic control parts (14), wherein each executive component (10) has one first connector (24) and each regulating part (44) has one second connector (48), so that each regulating part (44) passes through described first and second connector (24 with each executive component (10), 48) effect connects can act on connection each other, it is characterized in that: first and second connector (24,48) constitute an eccentric (24,26,50,52).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200410027644 DE102004027644A1 (en) | 2004-06-05 | 2004-06-05 | Operating device of a power tool |
| DE102004027644.7 | 2004-06-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1707937A true CN1707937A (en) | 2005-12-14 |
| CN100479322C CN100479322C (en) | 2009-04-15 |
Family
ID=34833285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100755892A Expired - Fee Related CN100479322C (en) | 2004-06-05 | 2005-06-06 | Operator device of an electric power tool and operating device module system |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN100479322C (en) |
| DE (1) | DE102004027644A1 (en) |
| GB (1) | GB2414866B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB613421A (en) * | 1943-12-15 | 1948-11-29 | Berthiez Charles William | A remote control device for the control of electrically driven machines |
| US3842328A (en) * | 1972-03-01 | 1974-10-15 | Skil Corp | Speed control device with independent speed control and on-off operating members |
| DE3229058A1 (en) * | 1982-08-04 | 1984-02-16 | Progress-Elektrogeräte Mauz & Pfeiffer GmbH & Co, 7000 Stuttgart | ADJUSTMENT DEVICE FOR ADJUSTING THE SUCTION POWER OF A VACUUM CLEANER |
| DE3342474A1 (en) * | 1983-11-24 | 1985-06-13 | Preh, Elektrofeinmechanische Werke Jakob Preh Nachf. Gmbh & Co, 8740 Bad Neustadt | COUNTER |
| DE3511468A1 (en) * | 1985-03-29 | 1986-10-09 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Motor-settable level controller |
| EP0538280B1 (en) * | 1990-06-27 | 1994-08-17 | Marquardt GmbH | Rheostatic switching arrangement |
-
2004
- 2004-06-05 DE DE200410027644 patent/DE102004027644A1/en not_active Withdrawn
-
2005
- 2005-06-03 GB GB0511490A patent/GB2414866B/en not_active Expired - Fee Related
- 2005-06-06 CN CNB2005100755892A patent/CN100479322C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN100479322C (en) | 2009-04-15 |
| GB2414866A (en) | 2005-12-07 |
| GB2414866B (en) | 2007-01-03 |
| DE102004027644A1 (en) | 2006-06-08 |
| GB0511490D0 (en) | 2005-07-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20090415 Termination date: 20140606 |