CN205881773U - Switch and electric tool - Google Patents
Switch and electric tool Download PDFInfo
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- CN205881773U CN205881773U CN201620076504.6U CN201620076504U CN205881773U CN 205881773 U CN205881773 U CN 205881773U CN 201620076504 U CN201620076504 U CN 201620076504U CN 205881773 U CN205881773 U CN 205881773U
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Abstract
The utility model provides a switch for the electric tool, include: switch shell, trigger part and response piece accept among the switch shell, a response response trigger part to generate corresponding status signal, first operating parts, the part accept in among the switch shell, operationally make the trigger part and the relative position of response piece change, the signal terminal that is just reversing sets up and is in switch shell is outside, and with a response electric connection, the status signal that will respond to the piece transmits for connected electric tool, when the relative position of trigger part and response piece is in the primary importance, the response piece generates a status signal, expresses in corotation signal and the reverse signal, when the relative position of trigger part and response piece is in the second place, the response generates the 2nd status signal, in expression corotation signal and the reverse signal another.
Description
Technical field
This utility model relates to a kind of switch.
This utility model further relates to a kind of electric tool with this switch.
Background technology
The switch contact using current collector and fixed touch plate of existing electric tool realizes the positive and negative of power tool more
Turning switching, fixed touch plate includes forward contact and reverse contact, the movable contact being joined directly together with the reversing bar of power tool
By contacting with forward fixed touch plate or reverse fixed touch plate, thus export corresponding forward signal or reverse signal.On the one hand,
Due to contact and contact long-term contact and friction brings loss, the impact of the most severe vibrations, to contact and the choosing of contact
Material, processing technique require high, add switch cost.On the other hand, long-term contact, rub, shaking also can worn contact
With contact, the contact internal resistance being greatly increased between them, the most directly disengage, therefore, it is impossible to export reliable and stable rotating
Signal.
Utility model content
Based on this, it is necessary to for the problems referred to above, it is provided that a kind of low cost and the motor switch of signal stabilization.A kind of electronic
Switch, including:
First housing, the outer surface of the first housing offers stirs groove；
Poke rod, is slidingly disposed at and stirs in groove, and one end of poke rod is positioned at the first housing, the other end of poke rod
Protrude from the outer surface of the first housing；
Motor switch also includes that the first trigger member, the second trigger member and induction pieces, the first trigger member and the second trigger member are divided
Not being positioned at the both sides that poke rod is positioned at one end of the first housing, it is interior and solid relative to the first housing that induction pieces is located at the first housing
Fixed；
Stir groove and include the first end and the second end, when poke rod is struck to the first end, the first trigger member of poke rod
Corresponding induction pieces, induction pieces senses the first trigger member output high level or low level；When poke rod is struck to the second end, dial
Second trigger member correspondence induction pieces of lever, induction pieces senses the second trigger member, when output and induction pieces sense the first trigger member
The contrary low level of level of output or high level, induction pieces and the first contact and the second contact are non-contact inductive.
Wherein in an embodiment, induction pieces is Hall element, and the first trigger member is magnetic towards one end of induction pieces
The N pole of ferrum, the second trigger member is towards the S pole that one end is Magnet of induction pieces.
Wherein in an embodiment, motor switch also includes control circuit, and control circuit includes speed-regulating control circuit,
The outfan of speed-regulating control circuit is connected with controller, and speed-regulating control circuit includes the first resistance and slide rheostat, the first electricity
Resistance is connected with slide rheostat.
Wherein in an embodiment, control circuit also includes rotating switching circuit, rotating switching circuit defeated
Going out end to be connected with controller, rotating switching circuit includes Hall element.
Wherein in an embodiment, motor switch also includes elastic component, and elastic component is moveable with slide rheostat
Connect, press elastic component under external force, make elastic component be connected the resistance of regulation slide rheostat with slide rheostat.
Wherein in an embodiment, the first housing also includes press section, and elastic component is positioned at the cavity of press section, presses
Splenium is positioned at the side of the first housing, is provided with sliding tray in the first housing, and under external force, press section presses bullet along sliding tray
Property part.
Wherein in an embodiment, motor switch also includes that the second housing, the second housing are provided with the first groove and
The press section of one housing coordinates.
Wherein in an embodiment, the outer surface of first housing at place, press section is additionally provided with fixing seat, the second shell
Body is additionally provided with the second groove, and the second housing is arranged on first by the second groove of the second housing and the fixing seat cooperation of the first housing
On housing.
Wherein in an embodiment, the first housing is for closing housing, and control circuit is enclosed in the first housing.
Wherein in an embodiment, the first hull outside is additionally provided with binding post.
This utility model also provides for another electric tool switch, and described switch is operationally to connected electricity
Power driven tools sends positive rotaring signal and reverse signal, and described switch includes: switch case；Trigger member and induction pieces, be housed in described
In switch case, induction pieces sensing trigger member, and generate corresponding status signal；First operating parts, be partially housed in described in open
Close in housing, operationally make trigger member change with the relative position of induction pieces；Rotating signal terminal, is arranged on described
Outside switch case, it is electrically connected with induction pieces, the status signal of induction pieces is passed to connected electric tool；When touching
The relative position of outbox and induction pieces is when primary importance, and described induction pieces generates the first status signal, represents positive rotaring signal
With in reverse signal, when the relative position of trigger member and induction pieces is in the second position, described induction pieces generates the
Two-state signal, represent in positive rotaring signal and reverse signal another.
Preferably, described induction pieces is fixedly installed in described switch case, and described first operating parts operationally makes institute
The position stating trigger member changes so that trigger member changes with the relative position of induction pieces.
Preferably, described first status signal and the second status signal are voltage signal.
Preferably, described first status signal is the signal that numerical value is higher than the first preset value；Described second status signal is
Numerical value is less than the signal of the second preset value；Described first preset value is more than or equal to the second preset value.
Preferably, described trigger member is magnetics, and described induction pieces is linear response element.
Preferably, described inductive switching element is switch Hall, and described first status signal is high level signal, described
Two-state signal is low level signal.
Preferably, described trigger member includes the first separately positioned Magnet and the second Magnet, when described trigger member is in
During one position, the N pole of described first Magnet is the most right with induction pieces, when described trigger member is in the second position, and described second magnetic
The S pole of ferrum is the most right with induction pieces.
Preferably, described switch also includes the second operating parts, speed governing element and speed-regulating signal terminal；Described second operating parts
It is arranged on outside described switch case, is operationally in different positions；Described speed governing element is arranged in described switch case,
The diverse location responding the second operating parts exports the preset rotation speed that different status signals represents different；Described speed-regulating signal terminal
It is arranged on outside described switch case, is electrically connected with described speed governing element, the status signal of speed governing element is passed to it even
The electric tool connect.
Preferably, the status signal of speed governing element output is voltage signal.
Preferably, described second operating parts switches in the way of stepless between different locations.
Preferably, described switch also includes the 3rd operating parts, on-off element and make-and-break signal terminal；3rd operating parts part
It is contained in described switch case, is operationally in diverse location；Described on-off element is arranged in described switch case, response
Being in diverse location in the 3rd operating parts, described on-off element is in Guan Bi or off-state；Described make-and-break signal terminal is arranged
Outside described switch case, it is electrically connected with described on-off element, the state of on-off element is passed to connected electronic
Instrument.
Preferably, described 3rd operating parts is the second operating parts, and described second operating parts includes release conditions and triggers shape
State, in the released state, described on-off element is off, the status signal that the output of described speed governing element is fixing, is touching
Under hair-like state, described on-off element is in closure state, and the status signal of described speed governing element output is with the position of the second operating parts
Put change and change.
Preferably, the firstth mutually isolated district and the secondth district, described secondth district and the external world are comprised in described switch case
Tightness is higher than described firstth district and extraneous tightness, and described induction pieces and trigger member are arranged in described firstth district, described
Speed governing element is arranged in described secondth district.
This utility model also provides for a kind of electric tool, and described electric tool includes motor, control module and switch,
Described control module with described switch be electrically connected with, and according to switch send signal control motor rotary motion, described in open
Close as foregoing switch.
Preferably, described motor is brushless electric machine, the signal control that described control module is transmitted according to rotating signal terminal
The power-up sequence of brushless electric machine coil processed, thus control motor and realize forward or reverse.
Preferably, described control module controls to flow through the side of the electric current of motor according to the signal that rotating signal terminal transmits
To, thus control motor and realize forward or reverse.
The induction pieces of above-mentioned motor switch and trigger member are contactless, thus avoid traditional motor switch to use contact
The loss problem brought with contact pad, improves the life-span of switch.
Accompanying drawing explanation
Fig. 1 is the structure chart of the motor switch of a kind of embodiment；
Fig. 2 is the structure chart of the motor switch of another embodiment；
Fig. 3 is the operating diagram that poke rod is in the first operating position；
Fig. 4 is the operating diagram that poke rod is in the second operating position；
Fig. 5 is the circuit theory diagrams of the motor switch of a kind of embodiment；
Fig. 6 is the stroke value relatable schematic diagram with slide rheostat of the elastic component of a kind of embodiment；
Fig. 7 is the structure chart of a kind of electric tool；
Fig. 8 is that the first operating parts of the switch of electric tool shown in Fig. 7 is in the work of primary importance and the second position and shows
It is intended to；
Fig. 9 is the sensing element output signal diagram of Fig. 8 illustrated embodiment.
Detailed description of the invention
In order to make the technical solution of the utility model and advantage clearer, below in conjunction with drawings and Examples, right
This utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain this reality
With novel, it is not used to limit this utility model.
As it is shown in figure 1, a kind of motor switch, including the first housing 10, poke rod the 102, first trigger member, the second trigger member
And induction pieces.The outer surface of the first housing 10 offers stirs groove 101.
Poke rod 102 is slidingly disposed to be stirred in groove 101, and one end of poke rod 102 is positioned at the first housing 10, stirs
The other end of bar 102 protrudes from the outer surface of the first housing 10.Operator regulates poke rod 102 exist by stirring poke rod 102
Stir the position of groove 101.
First trigger member and the second trigger member lay respectively at the both sides that poke rod 102 is positioned at one end of the first housing 10,
Induction pieces is located in the first housing 10, and relative first housing 10 is fixed.Stir groove 101 and include the first end 103 and the second end
104, poke rod 102 has the first operating position and the second operating position.Specifically, it is struck to stirring groove when poke rod 102
101 the first end 103 time, poke rod 102 on the first operating position, the first trigger member correspondence induction pieces of poke rod 102, sense
Answer part to sense the first trigger member output high level or low level, thus control the motor forward or reverse of power tool；When dialling
Lever 102 is struck to when stirring the second end 104 of groove 101, poke rod 102 on the second operating position, the of poke rod 102
Two trigger member correspondence induction pieces, induction pieces senses the second trigger member output low level or high level, induction pieces sensing the first triggering
The level that the level of part output senses the second trigger member output with induction pieces is contrary, thus controls the motor reversion of power tool
Or rotate forward.
This induction pieces is connected with the controller of motor, and controller receives high level or low level, the root of induction pieces output
Judging that switch is in forward or reverse state according to the high level received and low level, the corresponding power tool that controls rotates forward or anti-
Turn.
The induction pieces of above-mentioned motor switch and the first trigger member or the second trigger member are non-contact inductive, and poke rod is being dialled
When the first end of dynamic groove or the second end, corresponding first trigger member or second touches the induction pieces that correspondence is fixed in the first housing,
Induction pieces senses the first trigger member or the second trigger member and exports high level or low level, and controller is according to the high level received
Or low level controls the forward or reverse of power tool accordingly, owing to induction pieces and the first trigger member or the second trigger member are non-
Contact senses, thus avoids traditional motor switch to use the loss problem that contact is brought with contact pad, reduces electronic
The cost of switch.
In another embodiment, induction pieces is Hall element, and the first trigger member and the second trigger member are towards induction pieces
One end be respectively the two poles of the earth that magnetic pole is contrary, the i.e. first trigger member is towards the N pole that one end is Magnet of induction pieces, the second trigger member
Towards the S pole that one end is Magnet of induction pieces, or, the first trigger member towards the S pole that one end is Magnet of induction pieces, second
Trigger member is towards the N pole that one end is Magnet of induction pieces.
As it is shown on figure 3, when poke rod 102 is struck to when stirring the first end 103 of groove 101, and the first trigger member is near suddenly
That element, the first trigger member is towards the N pole that one end is Magnet of induction pieces, and Hall element senses the change in magnetic field, output height
Level.As shown in Figure 4, when poke rod 102 is struck to when stirring the second end 104 of groove 101, and the second trigger member is near Hall unit
Part, the second trigger member is towards the S pole that one end is Magnet of induction pieces, and Hall element senses the change in magnetic field, output low level.
By using Hall element as induction pieces, using Magnet as the first trigger member and the second trigger member, first touches
Outbox and the second trigger member are the two poles of the earth that Magnet is contrary towards one end of induction pieces, make the change of Hall element sensing magnetic pole and defeated
Going out different high level signals or low level signal, controller is according to the high level signal or low of the Hall element output received
Level signal judges that poke rod is in forward or reverse and controls the forward or reverse of power tool, thus realizes power tool
Rotating switches.Simultaneously as the high level of Hall element output or low level signal are digital signal, this signal can be direct
Detected by controller, signal stabilization, capacity of resisting disturbance is strong.
As it is shown in figure 5, motor switch also includes control circuit, control circuit includes rotating switching circuit 30, rotating
The outfan of switching circuit 30 is connected with the controller of power tool, and rotating switching circuit includes aforementioned Hall element.Such as Fig. 1
Shown in Fig. 2, motor switch also has binding post 109, the outfan of rotating switching circuit 30 by binding post 109 with
Controller connects, and controller receives high level or the low level of Hall element output, according to the high level received and low level
Judge that switch is in forward or reverse state, corresponding control power tool forward or reverse.
The control circuit of motor switch also includes speed-regulating control circuit 40, and the outfan of speed-regulating control circuit 40 is by electronic
The binding post 109 of switch is connected with controller, and speed-regulating control circuit 40 includes the first resistance R1 and slide rheostat R2, and first
Resistance R1 connects with slide rheostat R2, and controller, according to slide rheostat R2 and the resistance of the first resistance R1, obtains speed governing control
The electric current of circuit processed, and the rotating speed of the output electric current regulation motor according to speed-regulating control circuit.
Motor switch also includes elastic component 42, and elastic component 42 is movably connected with slide rheostat R2, at External Force Acting
Lower pressing elastic component 42, makes elastic component be connected the resistance of regulation slide rheostat with slide rheostat R2.
Concrete, regulated the resistance of slide rheostat R2 by elastic component 42, elastic component 42 in an initial condition with slip
Rheostat R2 disconnects, and presses this elastic component 42 under external force.As shown in Figure 6, for stroke and the slide rheostat of elastic component
Value relatable schematic diagram, elastic component shift motion interval 1.6 ± 0.2～2.8 ± 0.2mm, for the pre-bright stroke of signal lights, i.e.
When elastic component moves 1.6 ± 0.2～2.8 ± 0.2mm, the signal lights of rotational speed regulation is opened.When elastic component under external force
Continuing to move to, elastic component moves to slide rheostat, and contacts with the wiper of slide rheostat, by the mobile tune of elastic component
The resistance of part slide rheostat.When elastic component moves 2.8 ± 0.2mm, elastic component contacts with slide rheostat, starts regulation mobile
Rheostatic resistance, along with the increase of elastic component shift motion, the resistance of slide rheostat increases, when the movement 6.8 of elastic component
During ± 0.3mm, the resistance of slide rheostat is maximum, and the shift motion of elastic component is maximum up to 8.0 ± 0.2mm.Pass through elastic component
The resistance of regulation slide rheostat, thus regulate size of current and realize regulating the rotating speed of power tool.Above-mentioned motor switch, no
It is only capable of realizing the rotating switching of power tool, additionally it is possible to realize the rotational speed regulation of electric tool.
As it is shown in figure 1, the first housing also includes that press section 105, press section 105 are cavity body structure, elastic component 105 be positioned at by
In the cavity of splenium 105, press section 105 is positioned at the side of the first housing 10 and protrudes from the outer surface of the first housing 10, and first
Being provided with sliding tray in housing, under external force, press section 105 presses elastic component along sliding tray, makes elastic component move, and with cunning
Dynamic rheostatic wiper contact, when the wiper of elastic component with slide rheostat contacts with each other, and operator can be according to difference
Need press section is applied different pressure, regulate the resistance of slide rheostat to change the decrement of elastic component；When
During pressure release, press section resets under the effect of elastic component.Wherein, the stroke of elastic component is relevant with the decrement of elastic component,
The decrement of elastic component and the resistance of slide rheostat are predetermined proportionate relationship.
Above-mentioned motor switch, presses elastic component by arranging press section 105 at the outer surface of the first housing 10, by regulation
The resistance of the stroke adjustment slide rheostat of elastic component and regulate electric tool rotating speed, easy to operate.
In another embodiment, as in figure 2 it is shown, motor switch also includes that the second housing 20, the second housing 20 are provided with
The press section 105 of the first groove and the first housing coordinates, thus realizes pressing elastic component by pressing the second housing 20.Such as Fig. 2
Shown in, the second housing is arcuate structure away from one end of the first housing, meets ergonomics, it is simple to operator operates with hands.
Further, the outer surface of the first housing 10 is additionally provided with fixing seat 106, and the second housing 20 contacts with the first housing 10
One end have the second groove coordinated with this fixing seat 106, by the second housing 20 coordinating by fixing seat 106 and the second groove
It is arranged on the first housing 10.First housing 10 and the second housing 20 are the detachable structure coordinating and installing, and are convenient for changing and clearly
Manage the device in the first housing 10.
First housing 10 is for closing housing, and induction pieces, trigger member and elastic component and control circuit are enclosed in the first housing
In 10, thus device is avoided to be disturbed by dust and foreign body.
Motor switch also has binding post 109, and binding post 109 is positioned at outside the first housing 10, for by the first housing
Interior control circuit connects and is connected with controller and power supply.
It is illustrated in figure 7 the better embodiment of a kind of electric tool that this utility model provides.Electric tool 200 includes
Tool housing 201, the switch 100 being arranged on tool housing 201, energy provides unit 204, and is housed in tool housing
Motor 206 in 201 and control module 202.Control module 202 and switch 100 electric connection, and according to switch 100 transmission
Signal controls the rotary motion of motor 206.
Switch 100 operationally sends positive rotaring signal and reverse signal to connected control module 202.Control module
202 control motor 206 according to positive rotaring signal rotates forward, and controls motor 206 according to reverse signal and inverts.
In the case of motor 206 is brush motor, when control module 202 receives the positive rotaring signal of switch 100 transmission,
Control module 202 controls energy provides unit 204 to be first direction to the current direction of motor 206；Control module 202 receives
During the reverse signal of switch 100 transmission, control module 202 controls energy provides unit 204 to be the to the current direction of motor 206
Two directions.First direction is contrary with second direction.
In the case of motor 206 is brushless electric machine, brushless electric machine includes the 1st coil, the 2nd coil ... N coil.Control
When molding block 202 receives the positive rotaring signal of switch 100 transmission, it is first that control module 202 controls the power-up sequence of N number of coil
Power-up sequence, the such as the 1st coil to N coil or the 2nd coil to N coil again to the 1st coil；Control module 202 receives
To switch 100 transmission reverse signal time, it is the second power-up sequence that control module 202 controls the power-up sequence of N number of coil, such as
N coil to the 1st coil or N-1 coil to the 1st coil again to N coil.First power-up sequence of the energising of N number of coil
Contrary with the second power-up sequence.
Switch 100 includes switch case, trigger member and induction pieces, the first operating parts and rotating signal terminal.Trigger
Part and induction pieces are housed in switch case, induction pieces sensing trigger member, and generate corresponding status signal and be sent to rotating
Signal terminal.First operating parts is partially housed in switch case, can be operated by operator and be in different positions, and drive
Trigger member is in relative primary importance and the second position with induction pieces.Rotating signal terminal is arranged on outside switch case,
It is electrically connected with induction pieces, the status signal of induction pieces is passed to connected electric tool.When trigger member and induction pieces
When being in relative primary importance, induction pieces generates the first status signal, represents in positive rotaring signal or reverse signal, when
When trigger member is in the relative second position with induction pieces, induction pieces generates the second status signal, represents positive rotaring signal or reversion
Another in signal.
It is illustrated in figure 1 the structure chart of a kind of better embodiment of switch 100.Now switch case is the first housing
10.First operating parts is poke rod 102.Rotating signal terminal is binding post 109.In present embodiment, induction pieces is solid
Surely it is arranged in switch case.The position of trigger member changes with the change of the position of the first operating parts so that trigger member and sense
The relative position answering part switches between the first position and the second position.In other embodiments, it is also possible to be trigger member position
Putting fixing, the position of induction pieces changes with the change of the position of the first operating parts so that the phase para-position of trigger member and induction pieces
Put and switch between the first position and the second position.The structure of switch 100 can also be that those skilled in the art are according to above-mentioned note
Carry common knowledge other structures thinkable combining this area.
The mode of the interphase interaction of induction pieces and trigger member is induction mode, the most non-contacting mode.Specifically, non-connect
Touch induction mode can be photovoltaic, piezo electrics, magnetoelectricity mode, capacitive way, inductively in any one.?
Under different induction modes, it is further divided into switching regulator sensing and linear formula senses.
As a example by magnetoelectricity mode, trigger member is Magnet, and induction pieces is that linear Hall is to realize the sensing of linear formula.Now, touch
Corresponding relation between the magnitude of voltage of the position of outbox and induction pieces output is as shown in Figure 8 and Figure 9.When trigger member is in first
When putting, the status signal of induction pieces output is the first status signal.First status signal is the electricity that voltage is higher than the first preset value A
Pressure signal.When trigger member is in the second position, the status signal of induction pieces output is the second status signal.Second status signal
For the voltage voltage signal less than the second preset value B.First preset value A is more than or equal to the second preset value B.
As a example by magnetoelectricity mode, trigger member is Magnet, and induction pieces can be that linear Hall is to realize the sensing of linear formula, sensing
Part can also sense to realize switching regulator for switch Hall or tongue tube.Now, the first status signal is high level signal, second
Status signal is low level signal.For realizing above-mentioned functions, induction pieces has multiple with the specific constructive form of trigger member.
In embodiment as shown in Figures 3 and 4, induction pieces is switch Hall, and trigger member includes linking with poke rod 102
The first Magnet and the second Magnet.First Magnet and the second Magnet are separately positioned.First Magnet and the second Magnet are respectively provided with N
Pole and S pole.When poke rod 102 is in primary importance, the N pole of the first Magnet is the most right with induction pieces.Induction pieces senses magnetic field
Change, exports the first status signal, high level.When poke rod 102 is in the second position, the S pole of the second Magnet and induction pieces
The most right.Induction pieces senses changes of magnetic field, exports the second status signal, low level.In present embodiment, the first status signal and
Second status signal is voltage signal.In other embodiments, the first status signal and the second status signal can also be electricity
Stream signal, pulse signal etc..
In the embodiment shown in Fig. 1 and 2, induction pieces is fixedly installed in switch case, and the position of trigger member is with
The change of the position of one operating parts and change so that the relative position of trigger member and induction pieces primary importance and the second position it
Between switch.In other embodiments, trigger member can be fixedly installed in switch case, and the position of induction pieces is with the first operation
The change of the position of part and change so that trigger member is cut between the first position and the second position with the relative position of induction pieces
Change.Switch 100 the most operationally sends speed-regulating signal to connected control module 202.Control module 202 is believed according to speed governing
Number control motor 206 is in corresponding rotary speed.
Switch 100 farther includes the second operating parts, speed governing element and speed-regulating signal terminal.Second operating parts is arranged on out
Outside the housing of pass, operationally it is in different positions.Speed governing element is arranged in described switch case, responds the second operating parts
Diverse location exports the preset rotation speed that different status signals represents different.Speed-regulating signal terminal is arranged on outside switch case, with
Speed governing element is electrically connected with, and the status signal of speed governing element is passed to connected electric tool.The output of speed governing element
Status signal can be voltage signal, current signal, resistance signal, pulse signal etc..
The evolution of the second operating parts can realize regulating without step velocity by the way of sliding, it is also possible to by knob
Mode has realized step velocity regulation.A kind of concrete enforcement such as Fig. 1 and 2 institute realizing regulating without step velocity by slip mode
Show.
At Fig. 1, in the embodiment shown in 2,5, the second operating parts is press section 105, and speed governing element is speed regulating control electricity
Road 40, speed-regulating signal terminal is the binding post 109 being connected with the VR in Fig. 5.Second operating parts selectively farther includes
Second housing 20.Second housing 20 is provided with the first groove and coordinates with press section 105, thus expands operator and press press section 105
Time pressing area, improve pressing comfortableness.Second operating parts is operationally pressed or discharges, thus is at triggering
State and release conditions.When the second operating parts is in triggering state, the elastic component 42 in press section 105 is compressed, thus adjusts
The output resistance of joint slide rheostat R2, and then the magnitude of voltage of regulation speed-regulating signal terminal output.When the second operating parts is in
During release conditions, the resistance value of slide rheostat R2 is fixed value, and accordingly, the voltage signal of speed-regulating signal terminal output is
Fixed value.
At Fig. 1, in the embodiment shown in 2,5, binding post 109 had both included speed-regulating signal terminal, also included rotating
Signal terminal.Therefore, the control module 202 of connected electric tool both can receive the rotating of switch 100 transmission
Signal, it is also possible to receive the speed-regulating signal of switch 100 transmission.
Operator operates the first operating parts makes trigger member be in primary importance, and rotating signal terminal is to the control of electric tool
Molding block 202 exports high level signal, and the signal that control module 202 identification switch 100 sends is positive rotaring signal.Otherwise, operation
Person operates the first operating parts makes trigger member be in the second position, and rotating signal terminal is defeated to the control module 202 of electric tool
Going out low level signal, the signal that control module 202 identification switch 100 sends is reverse signal.
Subsequently, operator triggers the second operating parts, and rests on fixed position.This positional information is turned by speed-regulating signal terminal
Turning to voltage signal and pass to control module 202, control module 202 identifies the preset rotation speed of the setting of operator.
When, in electric tool, energy provides the on and off switch Guan Bi in the energy delivery circuit of unit 204 to motor 206
After, control module 202 controls motor 206 and rotates forward, and turns with target according to the signal control motor 206 of speed-regulating signal terminal transmission
Speed rotates.
At Fig. 1, in the embodiment shown in 2,5, standing part (resistance R2) and movable part that speed governing element comprises are (sliding
The slide bar of dynamic rheostat R2) it is the two parts contacted with each other.In other embodiments, standing part and movable part can be
Non-contacting two parts.It is specially in Chinese patent application CN201510883689.1 the mode disclosed.
Switch 100 the most operationally sends make-and-break signal, control module 202 basis to connected control module 202
Make-and-break signal, control module 202 controls motor 206 and rotates or stop.
Switch 100 also includes the 3rd operating parts, on-off element and make-and-break signal terminal.3rd operating parts is partially housed in out
Close housing, be operationally in diverse location.On-off element is arranged in switch case, is in difference in response to the 3rd operating parts
Position, on-off element is in Guan Bi or off-state.Make-and-break signal terminal is arranged on outside switch case, electrically connects with on-off element
Connect, the state of on-off element is passed to connected electric tool.3rd operating parts can be arranged independent of the second operating parts,
Its function can also be fused in the second operating parts.
Such as Fig. 1, in the embodiment shown in 2,5, the 3rd operating parts is the second operating parts.Second operating parts includes release
State and the state of triggering, in the released state, on-off element is off, the status signal that the output of speed governing element is fixing,
In the firing state, on-off element is in closure state, and the status signal of speed governing element output becomes with the position of the second operating parts
Change and change.On-off element is the A in Fig. 5, the switch between two nodes of B, and make-and-break signal terminal is and A, the wiring that B connects
Terminal 109.On-off element in present embodiment can be the on and off switch of electric tool, it is also possible to for signaling switch.When logical
When disconnected element is on and off switch, on-off element closes, and the energy of electric tool provides unit 204 to believe through on and off switch and break-make
Number terminal transmits to motor 206, and motor 206 starts.When on-off element is signaling switch, the state of signaling switch is believed through break-make
Number terminal passes to control module 202, and control module 202 controls energy provides the energy delivery circuit of unit 204 to motor 206
In on and off switch Guan Bi or disconnect, thus control motor 206 and start or stop.
In present embodiment, binding post 109 had both included rotating signal terminal, also included make-and-break signal terminal and speed governing
Signal terminal.Therefore, the control module 202 of connected electric tool both can receive the rotating of switch 100 transmission
Signal, it is also possible to receive make-and-break signal and the speed-regulating signal of switch 100 transmission.
Operator operates the first operating parts makes trigger member be in primary importance, and rotating signal terminal is to the control of electric tool
Molding block 202 exports high level signal, and control module 202 identifies that high level signal represents positive rotaring signal.Otherwise, operator operates
First operating parts makes trigger member be in the second position, and rotating signal terminal exports low electricity to the control module 202 of electric tool
Ordinary mail number, control module 202 identifies that low level signal represents reverse signal.
Subsequently, operator triggers the second operating parts, and once the second operating parts is triggered, and on-off element closes, and energy provides
The energy delivery circuit Guan Bi of unit 204 to motor 206, control module 202 controls motor 206 and starts to rotate forward.When operator touches
When sending out the second operating parts and rest on fixed position, this positional information is converted into voltage signal and passes to control by speed-regulating signal terminal
Molding block 202, control module 202 identifies the preset rotation speed of the setting of operator, and according to the signal of speed-regulating signal terminal transmission
Control motor 206 to rotate with preset rotation speed.
In aforementioned switches 100, the induction pieces and the trigger member model of action each other that send rotating signal are sense
The mode answered, the most non-contacting mode；Between standing part and the movable part of the speed governing element internal sending speed-regulating signal
Model of action can be induction mode or the way of contact.Housing dust-proof is required different by the way of contact and cordless, its
The middle way of contact is higher to dust-proof requirement.Therefore, the effect between the standing part and movable part of speed governing element internal
When mode is the way of contact, it is preferred that the inner volume of switch case comprises the firstth mutually isolated district and the secondth district.Secondth district
With extraneous tightness higher than the firstth district and extraneous tightness.Induction pieces and trigger member are arranged in the firstth district.Speed governing element
It is arranged in the secondth district.Being more highly preferred to, on-off element is also disposed at the secondth district.
It will be appreciated by persons skilled in the art that the switch 100 that this utility model provides can also be only capable of sending to rotate forward
Or reverse signal, and make-and-break signal, and speed-regulating signal can not be sent.Now, switch 100 includes switch case, the first operation
Part, trigger member, induction pieces, rotating signal terminal, the second operating parts, on-off element and make-and-break signal terminal etc..
Embodiment described above only have expressed several embodiments of the present utility model, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to this utility model the scope of the claims.It should be pointed out that, common for this area
For technical staff, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these all belong to
In protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be as the criterion with claims.
Claims (14)
1. an electric tool switch, described switch operationally sends positive rotaring signal with anti-to connected electric tool
Rotaring signal, it is characterised in that described switch includes:
Switch case；
Trigger member and induction pieces, be housed in described switch case, induction pieces sensing trigger member, and generates corresponding state letter
Number；
First operating parts, is partially housed in described switch case, operationally makes trigger member send out with the relative position of induction pieces
Raw change；
Rotating signal terminal, is arranged on outside described switch case, is electrically connected with induction pieces, by the status signal of induction pieces
Pass to connected electric tool；
When the relative position of trigger member and induction pieces is in primary importance, described induction pieces generates the first status signal, represents
In positive rotaring signal and reverse signal one, when the relative position of trigger member and induction pieces is in the second position, described sensing
Part generates the second status signal, represents another in positive rotaring signal and reverse signal；
Described trigger member is magnetics, and described induction pieces is linear response element.
Switch the most according to claim 1, it is characterised in that described induction pieces is fixedly installed in described switch case,
Described first operating parts operationally makes the position of described trigger member change so that the relative position of trigger member and induction pieces
Change.
Switch the most according to claim 1, it is characterised in that described first status signal and the second status signal are voltage
Signal.
Switch the most according to claim 1, it is characterised in that described first status signal is that numerical value is higher than the first preset value
Signal；Described second status signal is the signal that numerical value is less than the second preset value；Described first preset value is more than or equal to the
Two preset values.
Switch the most according to claim 1, it is characterised in that described trigger member includes the first separately positioned Magnet and
Two Magnet, when described trigger member is in primary importance, the N pole of described first Magnet is the most right with induction pieces, when described trigger member
When being in the second position, the S pole of described second Magnet is the most right with induction pieces.
Switch the most according to claim 1, it is characterised in that described switch also include the second operating parts, speed governing element and
Speed-regulating signal terminal；Described second operating parts is arranged on outside described switch case, is operationally in different positions；Described tune
Speed element is arranged in described switch case, and the diverse location different status signal of output responding the second operating parts represents different
Preset rotation speed；Described speed-regulating signal terminal is arranged on outside described switch case, is electrically connected with described speed governing element, by speed governing
The status signal of element passes to connected electric tool.
Switch the most according to claim 6, it is characterised in that the status signal of speed governing element output is voltage signal.
Switch the most according to claim 6, it is characterised in that described second operating parts in the way of stepless in different positions
Switch between putting.
Switch the most according to claim 6, it is characterised in that described switch also include the 3rd operating parts, on-off element and
Make-and-break signal terminal；3rd operating parts is partially housed in described switch case, is operationally in diverse location；Described break-make unit
Part is arranged in described switch case, is in diverse location in response to the 3rd operating parts, and described on-off element is in Guan Bi or disconnected
Open state；Described make-and-break signal terminal is arranged on outside described switch case, is electrically connected with described on-off element, by on-off element
State pass to connected electric tool.
Switch the most according to claim 9, it is characterised in that described 3rd operating parts is the second operating parts, described second
Operating parts includes release conditions and triggering state, and in the released state, described on-off element is off, described speed governing unit
The status signal that part output is fixing, in the firing state, described on-off element is in closure state, the output of described speed governing element
Status signal changes with the change in location of the second operating parts.
11. switches according to claim 6, it is characterised in that comprise the firstth mutually isolated district in described switch case
With the secondth district, the tightness in described secondth district and the external world is higher than described firstth district and extraneous tightness, and described induction pieces is with tactile
Outbox is arranged in described firstth district, and described speed governing element is arranged in described secondth district.
12. 1 kinds of electric tools, described electric tool includes motor, control module and switch, and described control module is with described
Switch is electrically connected with, and the signal sent according to switch controls the rotary motion of motor, it is characterised in that described switch is such as power
Profit requires the switch described in 1-11 any one.
13. electric tools according to claim 12, it is characterised in that described motor is brushless electric machine, described control mould
Tuber controls the power-up sequence of brushless electric machine coil according to the signal that rotating signal terminal transmits, thus controls motor and realize rotating forward
Or reversion.
14. electric tools according to claim 12, it is characterised in that described control module is according to rotating signal terminal
The signal of transmission controls to flow through the sense of current of motor, thus controls motor and realize forward or reverse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620076504.6U CN205881773U (en) | 2016-01-26 | 2016-01-26 | Switch and electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620076504.6U CN205881773U (en) | 2016-01-26 | 2016-01-26 | Switch and electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205881773U true CN205881773U (en) | 2017-01-11 |
Family
ID=57687059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620076504.6U Active CN205881773U (en) | 2016-01-26 | 2016-01-26 | Switch and electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205881773U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106997821A (en) * | 2016-01-26 | 2017-08-01 | 苏州宝时得电动工具有限公司 | Switch and electric tool |
| CN108702119A (en) * | 2017-10-16 | 2018-10-23 | 深圳和而泰智能控制股份有限公司 | A kind of motor control method and electric system |
| CN114161368A (en) * | 2020-09-10 | 2022-03-11 | 欧姆龙株式会社 | Trigger switch |
-
2016
- 2016-01-26 CN CN201620076504.6U patent/CN205881773U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106997821A (en) * | 2016-01-26 | 2017-08-01 | 苏州宝时得电动工具有限公司 | Switch and electric tool |
| CN108702119A (en) * | 2017-10-16 | 2018-10-23 | 深圳和而泰智能控制股份有限公司 | A kind of motor control method and electric system |
| CN114161368A (en) * | 2020-09-10 | 2022-03-11 | 欧姆龙株式会社 | Trigger switch |
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