CN209607616U - A kind of fool proof brushless direct-current switch of tool - Google Patents
A kind of fool proof brushless direct-current switch of tool Download PDFInfo
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- CN209607616U CN209607616U CN201920799113.0U CN201920799113U CN209607616U CN 209607616 U CN209607616 U CN 209607616U CN 201920799113 U CN201920799113 U CN 201920799113U CN 209607616 U CN209607616 U CN 209607616U
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- briquetting
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Abstract
The utility model relates to a kind of fool proof brushless direct-current switches of tool, including switch main body, PBU pushbutton unit, reversing arrangement and wiring board, PBU pushbutton unit includes button assembly and connects electrical component with the first of button assembly cooperation, reversing arrangement includes that commutation component and second connect electrical component, commutation component on be additionally provided with first connect electrical component cooperate it is self-locking from locking plate, first, which connects electrical component correspondence, is provided with from locking plate side and cooperates self-locking self-locking briquetting from locking plate, commutation component drive to cooperate from locking plate with self-locking briquetting self-locking when being in self-locking state from locking plate, commutation component drive to release from locking plate with self-locking briquetting self-locking when being in prograde circuit or circuit for reversing on-state from locking plate.The utility model is driven from locking plate and self-locking briquetting by commutation component and is cooperated, and realizes that brushless direct-current switch facilitates self-locking, quick release effect, avoid causing because of self-locking effect difference safety accident there is a situation where.
Description
Technical field
The utility model relates to a kind of fool proof brushless direct-current switches of tool.
Background technique
Brushless direct-current switch is mainly used on the electric tools such as electric drill, electric hammer, cutting machine, electric blower, including switch master
Body, PBU pushbutton unit, commutation regulating device and wiring board, PBU pushbutton unit and commutation regulating device are mounted in switch cylinder, route
Plate is set in switch main body, by push button device, so that the electrical contact of PBU pushbutton unit glides and the gold on wiring board
Belong to contact contact and carry out conductive, relieving push button device, is powered off, realized by the reset spring reset in PBU pushbutton unit
The control that circuit is cut-off；Commutation regulating device includes reversing bar, transmission shaft and commutator segment, and control reversing bar carries out different conditions
Switching, transmitted torque on the commutator segment in switch main body by transmission shaft so that commutator segment driving commutation regulating device
Electrical contact contacted with the hard contact forward or reverse on wiring board and turning circuit, realize changing for brushless direct-current switch
To adjusting.
Brushless direct-current switch is easy to touch PBU pushbutton unit because of maloperation in use, so that circuit is led
It is logical, it is easy to cause safety accident.Existing brushless direct-current switch is provided on the reversing bar of commutation regulating device to be filled with button
The limited block of cooperation is set, when reversing bar is in designated position, the limited block on gag lever post is abutted with the button of PBU pushbutton unit, one
Determine to avoid PBU pushbutton unit danger caused by by external force pushing turning circuit lock in degree.But existing brushless direct-current switch is self-locking
Structure is insecure, and when the power being applied on PBU pushbutton unit is excessive, limited block skids with button bearing surface, can button be filled
The downward turning circuit of stress is set, and the state for the regulating device that commutates changes and turning circuit, is easy to cause safety accident.
Utility model content
Purpose of the utility model is to solve problems of the prior art, and providing one kind has safety device,
Can be carried out when not in use by safety device it is self-locking, thus avoid accident occur brushless direct-current switch.
To achieve the above object, the utility model provides following technical solution: a kind of tool is fool proof brushless straight
Stream switchs, including switch main body, PBU pushbutton unit, reversing arrangement and wiring board, is provided with the first mounting groove in the switch main body
And second mounting groove, the wiring board are set in switch main body, the PBU pushbutton unit includes button assembly and and button assembly
The first of cooperation connects electrical component, and described first, which connects electrical component, is set in the first mounting groove, and the button assembly and first connects electricity
Component is cooperatively connected and is set to outside switch main body, and the button assembly driving first connects electrical component and wiring board cooperates, described
Reversing arrangement includes that commutation component and second connect electrical component, and described second, which connects electrical component, is set in the second mounting groove, described to change
It connects electrical component to component and second to be cooperatively connected and be set to switch main body side, the commutation Component driver second connects electrical component
Cooperate with wiring board, is provided on the commutation component to connect electrical component with first and cooperate and self-locking connects electricity from locking plate, described first
Component is corresponding to be provided with from locking plate side and cooperates self-locking self-locking briquetting from locking plate, and the commutation component drive is in from locking plate
Make to cooperate from locking plate with self-locking briquetting when self-locking state self-locking, the commutation component drives from locking plate and is in prograde circuit
Or make to release from locking plate with self-locking briquetting when circuit for reversing on-state self-locking.
By using above-mentioned technical proposal, the first of PBU pushbutton unit connects electrical component and is set in the first mounting groove, button group
Part and first connects electrical component and is cooperatively connected and is set on switch main body, and the second of reversing arrangement connects electrical component and be set to the second peace
In tankage, commutation component and second connects the side that electrical component is cooperatively connected and is set to switch main body, and wiring board is set to switch
In main body and electrical component is connect with first and second connects electrical component cooperation.It is provided on commutation component with the rotation of commutation component and is changed
State from locking plate, first connects that electrical component is corresponding to be provided with self-locking briquetting from locking plate side.When commutation component is in self-locking state
When, it drives from locking plate and is in self-locking state, cooperate from locking plate and self-locking briquetting, whole self-locking, the button dress of realization device
It sets and not can turn on circuit, avoid the generation of accident；When the component that commutates is in prograde circuit or circuit for reversing on-state, band
It is dynamic to be staggered from locking plate and self-locking briquetting, realize unlock, PBU pushbutton unit stress connects switching circuit when pushing, device operates normally.
The utility model is further arranged: the commutation component includes reversing bar and transmission shaft, and the transmission shaft is vertically set
It is placed in one end of reversing bar, it is described to be set on the other end of the transmission shaft with respect to reversing bar from one end of locking plate and turn with reversing bar
Dynamic, the other end for corresponding to reversing bar from locking plate is provided with self-locking jacking block, and the self-locking jacking block is matched with self-locking briquetting.
By using above-mentioned technical proposal, it is sheathed on the transmission shaft being fixedly connected with reversing bar from one end of locking plate, from
Locking plate is rotated with the rotation of transmission shaft, when reversing bar turns to self-locking state, self-locking state is also turned to from locking plate, to make
Turn to the first lower section for connecing self-locking briquetting on electrical component derived from the self-locking jacking block on locking plate so that the upper top surface of self-locking jacking block with
The bottom surface of self-locking briquetting mutually abuts, and button assembly is unable to stress and drives first to connect electrical component downslide connection circuit, realizes certainly
Lock；When reversing bar rotation drives from locking plate to circuit on-state forward or reverse, so that the pedestal jacking block of self-locking on piece and the
One connects the self-locking briquetting mutual dislocation on electrical component, so that self-locking state contacts, button assembly is that first can be driven to connect in stress
Electrical component, which glides, connects circuit.
The utility model is further arranged: be provided with partition between first mounting groove and the second mounting groove, it is described every
One end of plate corresponding button component be provided with perforation the first mounting groove and the second mounting groove pass through openings, it is described from locking plate in it
Font setting, described from locking plate includes linkage section, flat segments and self-locking section, and the linkage section and transmission shaft are cooperatively connected, described
Self-locking jacking block is set in self-locking section, and one end of the flat segments is mutually perpendicular to and is fixedly connected with linkage section, and the other end runs through
Pass through openings are mutually perpendicular to and are fixedly connected with the self-locking section being set in the first mounting groove.
By using above-mentioned technical proposal, the first mounting groove is separated with the second mounting groove by partition, and partition is corresponding
One end of button assembly is provided with the pass through openings of the first mounting groove and the second mounting groove, is set to second from the linkage section of locking plate
It is cooperatively connected in mounting groove and with commutation component, is set in the first mounting groove from the self-locking section of locking plate, it is self-locking in self-locking section
Jacking block and first connects that self-locking briquetting cooperation on electrical component is self-locking or unlock, runs through pass through openings and both ends from the flat segments of locking plate
It is connect respectively with linkage section and self-locking section, from locking plate in being arranged in a zigzag, the space in switch main body is rationally utilized, so that whole
Body structure is more compact, reasonable.
The utility model is further arranged: the length from locking plate is less than the length of the partition, the flat segments
Thickness is less than the height of pass through openings.
By using above-mentioned technical proposal, the length of partition is less than from the length of locking plate, it is small from the thickness of locking plate flat segments
In the height of pass through openings, when being swung from locking plate by transmission shaft with reversing bar, from locking plate can smoothly in switch main body into
Row is swung, and bumps against the inner wall of wiring board or switch main body during the swing；From locking plate flat segments when with being swung from locking plate not
Can be stuck at pass through openings causes device to damage.
The utility model is further arranged: the thickness of the self-locking briquetting is less than the described first thickness for connecing electrical component, institute
The thickness for stating self-locking jacking block is less than the thickness of the self-locking briquetting.
By using above-mentioned technical proposal, the width that the width of self-locking briquetting connects electrical component less than first, self-locking jacking block
Width is less than the width of self-locking briquetting, avoids the feelings that self-locking jacking block is contacted with self-locking briquetting always when with swinging from locking plate
Condition.
The utility model is further arranged: the commutation component further includes being changed by what transmission shaft was fixedly connected with reversing bar
To piece, the metal clips being set to below commutator segment, the commutator segment stirs unit and second by commutation and connects electrical component linkage
The middle part setting of cooperation, the metal clips is fluted, and the groove is matched with the end of the commutator segment, the commutator segment
When end is in groove, reversing arrangement is generally in self-locking state, so that self-locking jacking block and the mutually self-locking cooperation of self-locking briquetting,
When the end of the commutator segment is in the two sides of groove, reversing arrangement is in prograde circuit or circuit for reversing on-state, self-locking
Jacking block and self-locking briquetting unlock.
By using above-mentioned technical proposal, commutation is fixedly connected with reversing bar, and when reversing bar rotates, commutator segment is also therewith
Rotation, commutator segment rotate when by commutate stir unit stir second connect electrical component carry out rotate forward reversion commutation or reset, from
And realize that commutation is adjusted, when commutator segment is caught in the groove of metal clips with the end that reversing bar turns to commutator segment, so that
It drives self-locking jacking block to turn to below the self-locking briquetting that first connects electrical component from locking plate, makes the upper top surface of self-locking jacking block and self-locking pressure
The bottom surface of block mutually abuts, and button assembly is unable to stress and drives first to connect electrical component downslide connection circuit, realizes self-locking；When changing
Commutator segment is driven by transmission shaft to bar and is rotated from locking plate, the groove of the end abjection metal clips of commutator segment, self-locking on piece
The self-locking briquetting that is connect with first on electrical component of self-locking jacking block separate, push button may make first to connect and slip under electrical component at this time
Circuit passband, commutation component drive second to connect electrical component and commutate, and realize the self-locking and unlock of brushless direct-current switch.Metal clips
Setting user can be enabled to carry out more clearly knowing the variable condition of commutator segment when commutation is adjusted rotating reversing bar.
The utility model is further arranged: it includes being set to commutator segment corresponding second to connect electrical component that unit is stirred in the commutation
The arc guide barrel of side is set to second and connects the column of stirring that electrical component corresponds to commutator segment side, and the column correspondence of stirring is changed
It is set in arc guide barrel to one end of piece and cooperates with arc guide barrel.
By using above-mentioned technical proposal, the arc guide barrel that unit is stirred in commutation is set to commutator segment corresponding second and connects electric group
Part side, stirs column and is set to second and connects electrical component and correspond to commutator segment side, and the one end for stirring column is set to arc guide barrel
Interior, when commutator segment is rotated with reversing bar to side, the port that arc guide barrel corresponds to rotation direction side is dialled to column is stirred
It is dynamic, cunning or downslide are carried out so that stirring column and driving second to connect electrical component, so that second connects the metal touching on electrical component
Head contacts turning circuit with the hard contact on wiring board forward or reverse, and the commutation of realization device is adjusted.
The utility model is further arranged: the reversing bar on the transmission shaft other end with respect to being additionally provided with for self-locking limit
Position fixture block, the button assembly includes pressing piece, and the side that the pressing piece corresponds to reversing bar is provided with limit briquetting, the limit
Position briquetting is arranged close to the end face of reversing bar one end in radian, and the limit card block and limit briquetting cooperate.
By using above-mentioned technical proposal, limit card block and limit briquetting cooperation, when reversing bar drives commutator segment and self-locking
Piece rotation so that the end of commutator segment sticks into the groove of metal clips, on the self-locking jacking block of self-locking on piece and the first sliding shoe oneself
Lock briquetting mutually abuts, and connects electrical component cooperation with first from locking plate and realizes self-locking, while the limit card block on reversing bar is positioned at pressing
Below limit briquetting on casting die, limit card block and limit briquetting cooperate, and limit briquetting is mutually abutted with limit card block, real
Existing double self locking.
With reference to the accompanying drawing and specific embodiment is described further the utility model.
Detailed description of the invention
Fig. 1 is the overall structure figure of the utility model embodiment；
Fig. 2 is the local structural graph one of the utility model embodiment；
Fig. 3 is the local structural graph two of the utility model embodiment；
Fig. 4 is the local structural graph three of the utility model embodiment；
Fig. 5 is the local structural graph four of the utility model embodiment；
Fig. 6 is the local structural graph five of the utility model embodiment；
Fig. 7 is the local structural graph six of the utility model embodiment；
Fig. 8 is the local structural graph seven of the utility model embodiment；
Figure label meaning: switch main body -1, the first mounting groove -11, the second mounting groove -12, partition -121, perforation is opened
Mouth -122, PBU pushbutton unit -2, button assembly -21, pressing piece -211, limit briquetting -212, the first connect electrical component -22, self-locking pressure
Block -221, reversing arrangement -3, commutate component -31, from locking plate -311, self-locking jacking block -3111, and linkage section -3112, flat segments -
3113, self-locking section -3114, reversing bar -312, limit card block -3121, transmission shaft -313, commutator segment -314, metal clips -315,
Groove -3151, the second connects electrical component -32, and unit -33 is stirred in commutation, and arc guide barrel -331 stirs column -332, wiring board -4.
Specific embodiment
This specific embodiment is only the explanation to the present embodiment, is not the limitation to the present embodiment, this field skill
Art personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as
All by the protection of Patent Law in the scope of the claims of the present embodiment.
Referring to attached drawing 1-8, present embodiment discloses a kind of fool proof brushless direct-current switches of tool, including switch main body
1, PBU pushbutton unit 2, reversing arrangement 3 and wiring board 4 are provided with the first mounting groove 11 and the second mounting groove in the switch main body 1
12, the wiring board 4 is set in switch main body 1, and the PBU pushbutton unit 2 includes button assembly 21 and cooperates with button assembly 21
First connect electrical component 22, described first, which connects electrical component 22, is set in the first mounting groove 11, the button assembly 21 and first
It connects electrical component 22 to be cooperatively connected and be set to outside switch main body 1, the driving of button assembly 21 first connects electrical component 22 and route
Plate 4 cooperates, and the reversing arrangement 3 includes that commutation component 31 and second connect electrical component 32, and described second, which connects electrical component 32, is set to
In second mounting groove 12, the commutation component 31 and second connects the mating connection of electrical component 32 and is set to 1 side of switch main body, institute
It states commutation component 31 driving second and connects electrical component 32 and the cooperation of wiring board 4, be provided on the commutation component 31 and connect electricity with first
Component 22 cooperate it is self-locking from locking plate 311, described first connect electrical component 22 it is corresponding from 311 side of locking plate be provided with from locking plate
The self-locking self-locking briquetting 221 of 311 cooperations, the drive of commutation component 31 make when being in self-locking state from locking plate 311 from locking plate
311 cooperate self-locking with self-locking briquetting 221, and the commutation component 31, which drives, be in prograde circuit from locking plate 311 or reversion is electric
Make to release from locking plate 311 with self-locking briquetting 221 when the on-state of road self-locking.By using above-mentioned technical proposal, PBU pushbutton unit 2
First connect electrical component 22 and be set in the first mounting groove 11, button assembly 21 connects electrical component 22 with first and is cooperatively connected and is arranged
In on switch main body 1, the second of reversing arrangement 3 connects electrical component 32 and is set in the second mounting groove 12, and commutate component 31 and second
The side that electrical component 32 is cooperatively connected and is set to switch main body 1 is connect, wiring board 4 is set in switch main body 1 and connects with first
Electrical component 22 and second connect electrical component 32 cooperation.Commutation component 31 on be provided with commutation component 31 rotation and change state from
Locking plate 311, first, which connects the correspondence of electrical component 22, is provided with self-locking briquetting 221 from 311 side of locking plate.When commutation component 31 is in self-locking
It when state, drives from locking plate 311 and is in self-locking state, cooperate from locking plate 311 and self-locking briquetting 221, realization device is whole
It is self-locking, PBU pushbutton unit 2 not can turn on circuit, avoid the generation of accident；When commutation component 31 is in prograde circuit or reversion
When circuit on-state, drive is staggered from locking plate 311 and self-locking briquetting 221, realizes unlock, and 2 stress of PBU pushbutton unit connects when pushing
Logical switching circuit, device operate normally.
The present embodiment is further arranged: the commutation component 31 includes reversing bar 312 and transmission shaft 313, the transmission shaft
313 are vertically installed in one end of reversing bar 312, and described one end from locking plate 311 is set to transmission shaft 313 with respect to reversing bar 312
The other end on and rotate with reversing bar 312, the other end from the corresponding reversing bar 312 of locking plate 311 is provided with self-locking jacking block
3111, the self-locking jacking block 3111 is matched with self-locking briquetting 221.By using above-mentioned technical proposal, from one end of locking plate 311
It is sheathed on the transmission shaft 313 being fixedly connected with reversing bar 312, is rotated from locking plate 311 with the rotation of transmission shaft 313, when changing
Self-locking state is turned to bar 312, also turns to self-locking state from locking plate 311, so that from the self-locking jacking block on locking plate 311
3111 turn to the first lower section for connecing self-locking briquetting 221 on electrical component 22, so that the upper top surface of self-locking jacking block 3111 and self-locking pressure
The bottom surface of block 221 mutually abuts, and button assembly 21 is unable to stress and drives first to connect the downslide connection circuit of electrical component 22, realizes certainly
Lock；When the rotation of reversing bar 312 drives from locking plate 311 to circuit on-state forward or reverse, so that from the pedestal on locking plate 311
Jacking block and first connects 221 mutual dislocation of self-locking briquetting on electrical component 22, so that self-locking state contacts, button assembly 21 is in stress
It is that first can be driven to connect the downslide of electrical component 22 to connect circuit.
The present embodiment is further arranged: partition 121, institute are provided between first mounting groove 11 and the second mounting groove 12
The one end for stating 121 corresponding button component 21 of partition is provided with the pass through openings of perforation the first mounting groove 11 and the second mounting groove 12
122, it is described to be arranged from locking plate 311 in zigzag, it is described to include linkage section 3112, flat segments 3113 and self-locking section from locking plate 311
3114, the linkage section 3112 is cooperatively connected with transmission shaft 313, and the self-locking jacking block 3111 is set in self-locking section 3114, institute
The one end for stating flat segments 3113 is mutually perpendicular to and is fixedly connected with linkage section 3112, and the other end is through pass through openings 122 and setting
It is mutually perpendicular to and is fixedly connected in the self-locking section 3114 in the first mounting groove 11.By using above-mentioned technical proposal, the first installation
Slot 11 is separated with the second mounting groove 12 by partition 121, and one end of 121 corresponding button component 21 of partition is provided with the first peace
The pass through openings 122 of tankage 11 and the second mounting groove 12 are set in the second mounting groove 12 simultaneously from the linkage section 3112 of locking plate 311
It is cooperatively connected, is set in the first mounting groove 11 from the self-locking section 3114 of locking plate 311, in self-locking section 3114 with commutation component 31
Self-locking jacking block 3111 and first connect on electrical component 22 self-locking briquetting 221 cooperate self-locking or unlock, from the flat segments of locking plate 311
3113 through pass through openings 122 and both ends are connect with linkage section 3112 and self-locking section 3114 respectively, set from locking plate 311 in zigzag
It sets, the space in switch main body 1 is rationally utilized, so that overall structure is more compact, reasonable.
The present embodiment is further arranged: the length from locking plate 311 is less than the length of the partition 121, described straight
The thickness of section 3113 is less than the height of pass through openings 122.By using above-mentioned technical proposal, from the length of locking plate 311 be less than every
The length of plate 121 is less than the height of pass through openings 122 from the thickness of 311 flat segments 3113 of locking plate, when passing through biography from locking plate 311
Moving axis 313 is swung with reversing bar 312, can smoothly be swung in switch main body 1 from locking plate 311, be hit during the swing
To wiring board 4 or the inner wall of switch main body 1；Perforation will not be stuck in when with swinging from locking plate 311 from 311 flat segments 3113 of locking plate
Being open at 122 causes device to damage.
The present embodiment is further arranged: the thickness of the self-locking briquetting 221 is less than the described first thickness for connecing electrical component 22,
The thickness of the self-locking jacking block 3111 is less than the thickness of the self-locking briquetting 221.By using above-mentioned technical proposal, self-locking briquetting
The width that 221 width connects electrical component 22 less than first, the width of self-locking jacking block 3111 are less than the width of self-locking briquetting 221, keep away
The case where self-locking jacking block 3111 is contacted with self-locking briquetting 221 always when with swinging from locking plate 311 is exempted from.
The present embodiment is further arranged: the commutation component 31 further includes connecting by the way that transmission shaft 313 and reversing bar 312 are fixed
The commutator segment 314 connect, the metal clips 315 being set to below commutator segment 314, the commutator segment 314 stir unit by commutation
33, which connect electrical component 32 with second, is linked, the middle part of the metal clips 315 setting fluted 3151, the groove 3151 with
The end of the commutator segment 314 matches, when the end of the commutator segment 314 is in groove 3151, reversing arrangement 3 generally in
Self-locking state, so that self-locking jacking block 3111 and the mutual self-locking cooperation of self-locking briquetting 221, the end of the commutator segment 314 is in recessed
When the two sides of slot 3151, reversing arrangement 3 is in prograde circuit or circuit for reversing on-state, self-locking jacking block 3111 and self-locking briquetting
221 unlocks.By using above-mentioned technical proposal, commutation is fixedly connected with reversing bar 312, the commutator segment when reversing bar 312 rotates
314 also rotate with it, and by commutation stir unit 33 when commutator segment 314 rotates and stir second and connect electrical component 32 and carry out rotating forward reversion
Commutation or reset, thus realize commutation adjust, when commutator segment 314 is caught in the end that reversing bar 312 turns to commutator segment 314
When in the groove 3151 of metal clips 315, so that driving self-locking jacking block 3111 to turn to first from locking plate 311 connects electrical component 22
Self-locking 221 lower section of briquetting, abuts the upper top surface of self-locking jacking block 3111 and the bottom surface of self-locking briquetting 221 mutually, button assembly
21, which are unable to stress, drives first to connect the downslide connection circuit of electrical component 22, realizes self-locking；When reversing bar 312 passes through 313 band of transmission shaft
It moves commutator segment 314 and is rotated from locking plate 311, the groove 3151 of the end abjection metal clips 315 of commutator segment 314, from locking plate 311
On the self-locking briquetting 221 that is connect with first on electrical component 22 of self-locking jacking block 3111 separate, push button may make first to connect at this time
Electrical component 22, which glides, connects circuit, and commutation component 31 drives second to connect electrical component 32 and commutates, and realizes brushless direct-current switch
Self-locking and unlock.The setting of metal clips 315 can enable user more clear when rotating reversing bar 312 and carrying out commutation adjusting
Know to Chu the variable condition of commutator segment 314.
The present embodiment is further arranged: it includes being set to commutator segment 314 corresponding second to connect electricity that unit 33 is stirred in the commutation
The arc guide barrel 331 of 32 side of component, be set to second connect corresponding 314 side of commutator segment of electrical component 32 stir column 332, institute
It states and stirs one end of the corresponding commutator segment 314 of column 332 and be set in arc guide barrel 331 and cooperate with arc guide barrel 331.By adopting
With above-mentioned technical proposal, the arc guide barrel 331 that unit 33 is stirred in commutation is set to commutator segment 314 corresponding second and connects electrical component 32 1
Side, stirs column 332 and is set to second and connect corresponding 314 side of commutator segment of electrical component 32, and the one end for stirring column 332 is set to arc
In shape guide groove 331, when commutator segment 314 is rotated with reversing bar 312 to side, arc guide barrel 331 corresponds to the end of rotation direction side
It mouthful stirs to stirring column 332, carries out cunning or downslide so that stirring column 332 and driving second to connect electrical component 32, thus
So that second connects the metal contact on electrical component 32 and the hard contact contact turning circuit on wiring board 4 forward or reverse, it is real
The commutation of existing device is adjusted.
The present embodiment is further arranged: being additionally provided on opposite 313 other end of transmission shaft of the reversing bar 312 for self-locking
Limit card block 3121, the button assembly 21 includes pressing piece 211, and the side of the corresponding reversing bar 312 of the pressing piece 211 is set
It is equipped with limit briquetting 212, the limit briquetting 212 is arranged close to the end face of 312 one end of reversing bar in radian, the limit card block
3121 cooperate with limit briquetting 212.By using above-mentioned technical proposal, limit card block 3121 and limit briquetting 212 cooperate,
When reversing bar 312 drives commutator segment 314 and rotates from locking plate 311, so that the end of commutator segment 314 sticks into metal clips 315
In groove 3151, from locking plate 311, self-locking jacking block 3111 is mutually abutted with briquetting 221 self-locking on the first sliding shoe, from locking plate 311
It is self-locking that the cooperation realization of electrical component 22 is connect with first, while the limit card block 3121 on reversing bar 312 is located at the limit on pressing piece 211
212 lower section of position briquetting, limit card block 3121 and limit briquetting 212 cooperate, and limit briquetting 212 and limit card block 3121 are mutual
It abuts, realizes double self locking.
Although switch main body -1, the first mounting groove -11, the second mounting groove -12 are used more herein, partition -121,
Pass through openings -122, PBU pushbutton unit -2, button assembly -21, pressing piece -211, limit briquetting -212, the first connect electrical component -22,
Self-locking briquetting -221, reversing arrangement -3, commutate component -31, and from locking plate -311, self-locking jacking block -3111, linkage section -3112 is straight
Section -3113, self-locking section -3114, reversing bar -312, limit card block -3121, transmission shaft -313, commutator segment -314, metal clips -
315, groove -3151, the second connects electrical component -32, and unit -33 is stirred in commutation, and arc guide barrel -331 stirs column -332, route
Plate -4, but it does not exclude the possibility of using other terms.The use of these items is only for be more convenient to describe and explain
The essence of the present embodiment；Being construed as any additional limitation all is disagreed with the present embodiment spirit.
Claims (8)
1. a kind of fool proof brushless direct-current switch of tool, including switch main body, PBU pushbutton unit, reversing arrangement and wiring board,
The first mounting groove and the second mounting groove are provided in the switch main body, the wiring board is set in switch main body, described to press
Button device includes button assembly and connects electrical component with the first of button assembly cooperation, and described first, which connects electrical component, is set to the first peace
In tankage, the button assembly and first connects electrical component and is cooperatively connected and is set to outside switch main body, the button assembly driving
First connects electrical component and wiring board cooperation, and the reversing arrangement includes that commutation component and second connect electrical component, and described second connects electricity
Component is set in the second mounting groove, and the commutation component and second connects electrical component and is cooperatively connected and is set to switch main body one
Side, the commutation Component driver second connect electrical component and wiring board and cooperate, it is characterised in that: be provided on the commutation component and
First, which connects electrical component, cooperates self-locking from locking plate, and described first connects corresponding is provided with from locking plate side of electrical component cooperates with from locking plate
Self-locking self-locking briquetting, the commutation component drive make when being in self-locking state from locking plate from locking plate and self-locking briquetting phase interworking
Close it is self-locking, commutation component drive make when being in prograde circuit or circuit for reversing on-state from locking plate from locking plate with it is self-locking
Briquetting releases self-locking.
2. the fool proof brushless direct-current switch of a kind of tool according to claim 1, it is characterised in that: the commutation group
Part includes reversing bar and transmission shaft, and the transmission shaft is vertically installed in one end of reversing bar, described to be set to from one end of locking plate
Transmission shaft rotates on the other end of reversing bar and with reversing bar, and the other end for corresponding to reversing bar from locking plate is provided with certainly
Jacking block is locked, the self-locking jacking block is matched with self-locking briquetting.
3. the fool proof brushless direct-current switch of a kind of tool according to claim 2, it is characterised in that: first peace
Partition is provided between tankage and the second mounting groove, one end of the partition corresponding button component is provided with the first mounting groove of perforation
With the pass through openings of the second mounting groove, it is described from locking plate in a zigzag be arranged, it is described from locking plate include linkage section, flat segments and from
Lock section, the linkage section and transmission shaft are cooperatively connected, and the self-locking jacking block is set in self-locking section, one end of the flat segments with
Linkage section is mutually perpendicular to and is fixedly connected, and the other end mutually hangs down through pass through openings with the self-locking section being set in the first mounting groove
Direct join is fixedly connected.
4. the fool proof brushless direct-current switch of a kind of tool according to claim 3, it is characterised in that: described from locking plate
Length be less than the length of the partition, the thickness of the flat segments is less than the height of pass through openings.
5. the fool proof brushless direct-current switch of a kind of tool according to claim 4, it is characterised in that: the self-locking pressure
The thickness of block is less than the described first thickness for connecing electrical component, and the thickness of the self-locking jacking block is less than the thickness of the self-locking briquetting.
6. the fool proof brushless direct-current switch of a kind of tool according to claim 5, it is characterised in that: the commutation group
The metal clips that part further includes the commutator segment being fixedly connected by transmission shaft with reversing bar, is set to below commutator segment, it is described to change
Stir unit by commutation to piece and connect electrical component with second and be linked, the middle part of the metal clips be arranged it is fluted, it is described
Groove is matched with the end of the commutator segment, and when the end of the commutator segment is in groove, reversing arrangement is generally in self-locking
State, so that self-locking jacking block and the mutually self-locking cooperation of self-locking briquetting, when the end of the commutator segment is in the two sides of groove, commutation
Device is in prograde circuit or circuit for reversing on-state, and self-locking jacking block and self-locking briquetting unlock.
7. the fool proof brushless direct-current switch of a kind of tool according to claim 6, it is characterised in that: the commutation is dialled
Moving cell includes being set to commutator segment corresponding second to connect the arc guide barrel of electrical component side, be set to second and connect electrical component correspondence and change
To the column of stirring of piece side, it is described stir column and correspond to one end of commutator segment be set in arc guide barrel and match with arc guide barrel
It closes.
8. the fool proof brushless direct-current switch of a kind of tool according to claim 7, it is characterised in that: the reversing bar
It is additionally provided on the opposite transmission shaft other end for self-locking limit card block, the button assembly includes pressing piece, the pressing
The side that part corresponds to reversing bar is provided with limit briquetting, and the limit briquetting is arranged close to the end face of reversing bar one end in radian,
The limit card block and limit briquetting cooperate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920799113.0U CN209607616U (en) | 2019-05-30 | 2019-05-30 | A kind of fool proof brushless direct-current switch of tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920799113.0U CN209607616U (en) | 2019-05-30 | 2019-05-30 | A kind of fool proof brushless direct-current switch of tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209607616U true CN209607616U (en) | 2019-11-08 |
Family
ID=68406990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920799113.0U Expired - Fee Related CN209607616U (en) | 2019-05-30 | 2019-05-30 | A kind of fool proof brushless direct-current switch of tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209607616U (en) |
-
2019
- 2019-05-30 CN CN201920799113.0U patent/CN209607616U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191108 Termination date: 20200530 |