CN107591268A - A kind of brake structure being applied in electric tool switch - Google Patents
A kind of brake structure being applied in electric tool switch Download PDFInfo
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- CN107591268A CN107591268A CN201710896048.9A CN201710896048A CN107591268A CN 107591268 A CN107591268 A CN 107591268A CN 201710896048 A CN201710896048 A CN 201710896048A CN 107591268 A CN107591268 A CN 107591268A
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- push rod
- spring
- movable contact
- terminals
- housing
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Abstract
The invention discloses a kind of brake structure being applied in electric tool switch,Including housing,Push rod is installed on housing,One end of push rod is that push rod is inner,The other end is push rod outer end,Push rod is inner to be provided with main spring between rear side inwall,Connection projection is provided with one end lateral wall that push rod is located in housing,One end of connection projection is fixedly connected with a secondary bar,Ring body is surrounded with outside secondary bar,Stage clip is arranged with secondary bar,Stage clip offsets with inner wall of ring body,A B+ terminal and a D terminal are provided between ring body and front side board,Ring body is provided with conduction connector towards one end of front side board,When push rod is not by external force,Conduction connector contradicts with B+ terminals and D terminals simultaneously under the driving of stage clip,B+ terminals are made to be connected with D terminals,The B+ terminals are electrically connected with motor positive terminal,The D terminals are electrically connected with motor negative terminal.By the enabled quick release by way of electric discharge of the inertia of motor, motor is set to stall rapidly.
Description
Technical field
The present invention relates to a kind of motor switch, particularly a kind of brake structure being applied in electric tool switch.
Background technology
Electric tool, the electric tool driven in particular with motor, generally use push switch when operation
It is controlled, usually closes motor by lower switch starter motor, trip switch, because revolution has inertia, therefore works as
After operating personnel's trip switch, motor can also continuous running one end time, in this time, electric tool is still in operation
Cheng Zhong, therefore security incident risk be present, thereby increases and it is possible to converted products is damaged, by taking electric hammer as an example, when operating personnel unclamp
After switch, for a period of time, within this time, still there are larger vibrations in electric hammer for motor continuous running, the tup of front end according to
So there is larger impulse force, now, if electric hammer is touched other articles by operating personnel, may cause because of the impulse force of tup
Other articles damage, if touching people, may injure human body, therefore, it is necessary to which providing a kind of can make electric tool
The brake structure that motor stops rapidly.
The content of the invention
The technical problems to be solved by the invention are：A kind of brake structure being applied in electric tool switch is provided, should
Brake structure can make the motor of electric tool substantially reduce endurance period after motor power-off by the rapid stopping that running at high speed,
Avoid electric tool from being damaged after trip switch to other articles or people, improve the safety in utilization of electric tool.
In order to solve the above technical problems, the technical solution adopted by the present invention is：It is a kind of to be applied in electric tool switch
Brake structure, including hollow housing, are provided with the push rod mounting hole connected with inside on housing front side board, in push rod mounting hole
Push rod is installed, one end of push rod is inserted in housing, and the other end is stretched out outside housing, and push rod is located at one end in housing in push rod
End, the other end be push rod outer end, with push rod it is inner it is relative be housing rear side inwall, the push rod is inner and rear side inwall it
Between be provided with main spring, the main spring applies the axial force to hull outside to push rod, and the push rod is located at one in housing
End lateral wall on be provided with one connection projection, the one end of the connection projection away from push rod be fixedly connected with one it is parallel with push rod
The secondary bar of setting, secondary bar extend towards extreme direction outside push rod, and a strip ring body is surrounded with outside secondary bar, and secondary bar is located at the ring body
Inside, the length direction of ring body is consistent with the bearing of trend of secondary bar, and the secondary bar is arranged with pressure towards one end of push rod outer end
Spring, stage clip offset towards one end of push rod outer end with inner wall of ring body, fixed between the inwall of the ring body and housing front side board to set
A B+ terminal and a D terminal are equipped with, the ring body is provided with conduction connector towards one end of housing front side board, works as push rod
Not in the case of by external force, the conduction connector contradicts with B+ terminals and D terminals simultaneously under the driving of stage clip, makes B+ terminals
Connected with D terminals, the motor positive terminal or negative terminal of the B+ terminals and electric tool are electrically connected with, described
The motor negative terminal or positive terminal of D terminals and electric tool are electrically connected with.
As a kind of preferable scheme, a convex is additionally provided with one end lateral wall that the push rod is located in housing
The briquetting risen, a movable contact spring mounting seat relative with briquetting is provided with the housing, is provided with movable contact spring mounting seat dynamic
Contact, the both ends of the movable contact spring positioned at the both sides of movable contact spring mounting seat and can carry out tilting by fulcrum of mounting seat respectively, move and touch
One end of piece is relative with briquetting, and the other end is provided with movable contact, and a stationary contact mounting seat, stationary contact are additionally provided with the housing
Point mounting seat is divided into the both sides of movable contact spring with briquetting, and stationary contact mounting seat is relative with movable contact, solid in stationary contact mounting seat
Surely stationary contact is provided with, movable contact is relative with stationary contact, and the side of movable contact spring is provided with a spring retention posts, described dynamic
A spring is connected with contact, the other end of the spring is fixedly connected on spring retention posts, the Spring driving movable contact with
Stationary contact is inconsistent, and movable contact spring one end relative with briquetting sets the compression terminal of oriented briquetting direction extension, works as push rod
When not acted on by external force, the compression terminal and briquetting are inconsistent, and one end that movable contact spring is located at movable contact tilts, with stationary contact point
From when push rod stress moves to enclosure interior, conduction connector necessarily has been detached from B before the compression terminal departs from briquetting
+ terminal and D terminals, the movable contact are electrically connected with B+ terminals, and power supply is electrically connected with D terminals in the stationary contact
Positive and negative electrode, or the movable contact are electrically connected with D terminals, and the positive and negative of power supply is electrically connected with B+ terminals in the stationary contact
Pole.
As a kind of preferable scheme, described push rod the inner is axially arranged main spring installing blind, the main spring
One end is inserted in the main spring installing blind, be provided with the rear side inwall of the housing one it is relative with main spring installing blind
Glue nail, the main spring is set in glue and nails on.
As a kind of preferable scheme, the ring body is formed by laths of metal bending, and the conduction connector is ring body sheet
Body, the ring body include the contact site towards the inner guide part of push rod and towards front side board, and the width of the guide part is than pressure
Big 0.5~the 1.5mm of external diameter of spring, not less than 2/3rds of the length of secondary bar, the secondary bar is arranged in guide part length, is connect
The end bending part circular arc transition of contact portion forms arc contact surface, and the B+ terminals and D terminals are respectively arranged with an inclined-plane,
Two inclined-planes are set into splayed, and two inclined-planes and two arc contact surfaces correspond.
As a kind of preferable scheme, the spring retention posts are located at the same side of movable contact spring with stationary contact mounting seat, and
Close to movable contact one end, the spring applies a pulling force to movable contact spring, drives movable contact closely to be contradicted with stationary contact.
As a kind of preferable scheme, the movable contact spring mounting seat is the plate set perpendicular to push rod, and mounting seat direction is pressed
One end of block is provided with the groove for installing movable contact spring, is embedded in the middle part of the movable contact spring in groove, positioned at mounting seat both sides
Movable contact spring width be more than groove width.
The beneficial effects of the invention are as follows：By setting secondary bar on push rod, and ring body is set in secondary bar, set in ring body
Conduction connector, B+ terminals and D terminals relative with one end of ring body and be separated from each other are set in housing so that push rod exists
Not in the state of by external force, conduction connector can connect B+ terminals and D terminals so that the positive terminal and negative pole of motor
Binding post connects, and after motor short circuit, the inertia potential energy of motor obtains quick release by electric current caused by its rotation, so as to
It is quick to reduce motor rotary speed, motor is stalled rapidly.
Brief description of the drawings
Fig. 1 is the sectional view of the present invention；
Fig. 2 is the structural representation of the push rod in Fig. 1；
Fig. 3 is the structural representation of the ring body in Fig. 1；
Fig. 4 is Fig. 1 reverse sectional view；
Fig. 5 is the mounting structure schematic diagram of movable contact spring in Fig. 3.
In Fig. 1~Fig. 5：1st, housing, 1-1, front side board, 1-2, rear side inwall, 2, push rod mounting hole, 3, push rod, 3-1, push away
Bar is inner, 3-2, push rod outer end, 4, main spring, 5, connection projection, 6, secondary bar, 7, ring body, 7-1, guide part, 7-2, contact site,
7-3, arc contact surface, 8, stage clip, 9, B+ terminals, 10, D terminals, 11, conduction connector, 12, briquetting, 13, movable contact spring installation
Seat, 14, movable contact spring, 15, movable contact, 16, stationary contact mounting seat, 17, stationary contact, 18, spring retention posts, 19, spring, 20, by
Pressure side, 21, main spring installing blind, 22, glue nail, 23, groove.
Embodiment
Below in conjunction with the accompanying drawings 1, specific embodiments of the present invention are described in detail.
A kind of brake structure being applied in electric tool switch as shown in FIG. 1 to 3, including hollow housing 1, shell
The push rod mounting hole 2 connected with inside is provided with the front side board 1-1 of body 1, push rod 3 is installed in push rod mounting hole 2, push rod 3
In one end insertion housing 1, the other end is stretched out outside housing 1, and one end that push rod 3 is located in housing 1 is push rod the inner 3-1, the other end
For push rod outer end 3-2, relative with push rod the inner 3-1 is in rear side the inwall 1-2, push rod the inner 3-1 and rear side of housing 1
Main spring 4 is provided between wall 1-2, the main spring 4 applies to push rod 3 to the axial force outside housing 1, the push rod 3
In being provided with a connection projection 5 on one end lateral wall in housing 1, the one end of the connection projection 5 away from push rod 3 is fixedly connected
There is a secondary bar being be arranged in parallel with push rod 36, secondary bar 6 extends towards push rod outer end 3-2 directions, is surrounded with outside secondary bar 6 one long
Bar shaped ring body 7, secondary bar 6 are located at the inside of the ring body 7, and the length direction of ring body 7 is consistent with the bearing of trend of secondary bar 6, the pair
Bar 6 towards push rod outer end 3-2 one end are arranged with stage clip 8, and stage clip 8 is towards push rod outer end 3-2 one end and the inwall phase of ring body 7
Support, a B+ terminal 9 and a D terminal 10 are fixedly installed between the ring body 7 and the front side board 1-1 of housing 1 inwall, it is described
Ring body 7 is provided with conduction connector 11 towards the front side board 1-1 of housing 1 one end, described when push rod 3 is not in the case of by external force
Conduction connector 11 contradicts with B+ terminals 9 and D terminals 10 simultaneously under the driving of stage clip 8, B+ terminals 9 is connected with D terminals 10,
The motor positive terminal or negative terminal of the B+ terminals 9 and electric tool are electrically connected with, the D terminals 10 and electricity
The motor negative terminal or positive terminal of power driven tools are electrically connected with.
By setting secondary bar 6 on push rod 3, and ring body 7 is set in secondary bar 6, conduction connector 11 is set in ring body 7,
B+ terminals 9 and D terminals 10 relative with one end of ring body 7 and be separated from each other are set in housing 1 so that push rod is not by outer
In the state of power, conduction connector 11 can connect B+ terminals 9 and D terminals 10 so that the positive terminal and negative pole of motor
Binding post connects, and after motor short circuit, the inertia potential energy of motor obtains quick release by electric current caused by its rotation, so as to
It is quick to reduce motor rotary speed, motor is stalled rapidly.
As shown in Figure 4, Figure 5, an outwardly convex is additionally provided with one end lateral wall that the push rod 3 is located in housing 1
Briquetting 12, be provided with a movable contact spring mounting seat 13 relative with briquetting 12 in the housing 1, set in movable contact spring mounting seat 13
Movable contact spring 14 is equipped with, the both ends of the movable contact spring 14 positioned at the both sides of movable contact spring mounting seat 13 and can be respectively fulcrum with mounting seat 13
Tilting is carried out, one end of movable contact spring 14 is relative with briquetting 12, and the other end is provided with movable contact 15, is additionally provided with the housing 1
One stationary contact mounting seat 16, stationary contact mounting seat 16 are divided into the both sides of movable contact spring 14, and stationary contact mounting seat with briquetting 12
16 is relative with movable contact 15, stationary contact 17 is fixedly installed in stationary contact mounting seat 16, movable contact 15 is relative with stationary contact 17, position
The side of movable contact spring 14 is provided with a spring retention posts 18, a spring 19, the spring are connected with the movable contact spring 14
19 other end is fixedly connected on spring retention posts 18, and the spring 19 driving movable contact 15 and stationary contact 17 are inconsistent, described
The one end relative with briquetting 12 of movable contact spring 14 sets the compression terminal 20 of the oriented direction of briquetting 12 extension, when push rod 3 is not by external force
During effect, the compression terminal 20 and briquetting 12 are inconsistent, and one end that movable contact spring 14 is located at movable contact 15 tilts, with stationary contact 17
Separation, when the stress of push rod 3 is to when moving inside housing 1, conduction connector 11 must before the compression terminal 20 departs from briquetting 12
B+ terminals 9 and D terminals 10 so are had been detached from, the movable contact 15 and B+ terminals 9 are electrically connected with, the stationary contact 17 and D terminals
10 are electrically connected the positive and negative electrode of power supply, or the movable contact 15 and D terminals 10 are electrically connected with, the stationary contact 17 and B+
The positive and negative electrode of power supply is electrically connected in terminal 9.
When electric tool runs well, movable contact spring 14 is closely contradicted by driving for spring 19 with stationary contact 17, therefore can
The vibrations that resistance electric tool work is, prevent movable contact spring 14 from producing electric arc, carbon distribution because occurring flash phenomenon with stationary contact 17,
The normal connection of movable contact spring 14 and stationary contact 17 is influenceed, therefore, it is possible to effectively improve the service life of switch.
And when push rod 3 is not acted on by external force, or during external force release, when push rod 3 moves to outside housing 1, briquetting 12
Component depresses the compression terminal 20 of movable contact spring 14, and one end of movable contact 15 of movable contact spring 14 tilts, movable contact 15 and stationary contact 17
Separation, make the motor dead electricity of electric tool, so that it is guaranteed that the ensuing short circuit carried out to motor will not cause power supply positive and negative electrode
Short circuit.
Push rod the inner 3-1 is axially arranged main spring installing blind 21, and the main bullet is inserted in one end of the main spring 4
In spring installing blind 21, radially constrained by main spring installing blind 21, avoid main spring 4 from being bent under compressed state, institute
State and a glue nail 22 relative with main spring installing blind 21,4 sets of the main spring are provided with the rear side inwall 1-2 of housing 1
It is located on glue nail 22, is equally applicable to the compression to main spring 4 and play the guiding role, also, glue nail 22 is inserted into main spring
In installing blind 21, the axial movement to push rod 3 also plays a guide effect, the pressing of push rod 3 is got up more stable.
As shown in figure 3, the ring body 7 is formed by laths of metal bending, it is easy to process, reduces production cost, and work as motor
When short circuit, bigger heat can be produced, there is larger surface area can discharge heat rapidly, keep away for metal ring body 7
Exempt from localized hyperthermia and cause switching damage, therefore the conduction connector 11 is ring body 7 itself, ring body 7 includes inner towards push rod
3-1 guide part 7-1 and the contact site 7-2 towards front side board 1-1, the width of the guide part 7-1 are bigger than the external diameter of stage clip 8
0.5~1.5mm so that ring body 7 can have the offset of certain amplitude, when the end of ring body 7 is respectively between B+ terminals and D terminals
Spacing when error be present, if ring body 7 does not possess offset, occur that the end of ring body 7 only touches B+ terminals and D ends
One in son, and gap be present with another, cause to open a way, the function that motor stops rapidly can not being realized, and ring body 7 possesses
After offset, ring body 7 can be under the driving of stage clip 8, after its one end touches one in B+ terminals and D terminals, can be due to
The imbalance of power and produce skew, the effect of skew be then ring body 7 end can with it is another in another B+ terminal and D terminals
Individual contact, so that it is guaranteed that ring body 7 can touch B+ terminals and D terminals simultaneously, it is ensured that the realization for the function that motor stops rapidly.
For the length of the guide part 7-1 not less than 2/3rds of the length of secondary bar 6, the secondary bar 6 is arranged on guide part
In 7-1, to meet guide effect of the secondary bar 6 to ring body 7, contact site 7-2 end bending part circular arc transition forms arc and connect
Contacting surface 7-3, the B+ terminals and D terminals are respectively arranged with an inclined-plane, and two inclined-planes are set into splayed, and two inclined-planes and two arcs
Shape contact surface 7-3 is corresponded, and the other end end bending part circular arc transition of ring body 7 is formed into arc contact surface 7-3, works as ring
When body 7 deflects, can ensure that two arc contact surface 7-3 still can effectively with corresponding B+ terminals or D ends
Sub close conflict.
The spring retention posts 18 are located at the same side of movable contact spring 14 with stationary contact mounting seat 16, and close to movable contact 15 1
End, the spring 19 apply a pulling force to movable contact spring 14, drive movable contact 15 closely to be contradicted with stationary contact 17.
Spring retention posts 18 can also be located at the opposite side of movable contact spring 14 relative to stationary contact mounting seat 16, then spring 19 is adopted
With pretensioned spring, movable contact 15 is pressed on stationary contact 17 using spring 19, when briquetting 12 presses to compression terminal 20, in advance
The spring 19 of compression further compresses, and movable contact 15 separates with stationary contact 17.
The scheme of the same side that spring retention posts 18 and stationary contact mounting seat 16 are located to movable contact spring 14 is used in the present invention,
Be advantageous to rational deployment of the spring 19 in housing 1, compression spring 19 may result in spring 19 and bend in addition, but draw high spring
19 are not present the buckling phenomenon of spring 19, so that control of the spring 19 to movable contact spring 14 is more reliable and stable.
The movable contact spring mounting seat 13 is the plate set perpendicular to push rod 3, and mounting seat 13 is set towards one end of briquetting 12
There is the groove 23 for installing movable contact spring 14, the middle part of movable contact spring 14 is embedded in groove 23, positioned at the both sides of mounting seat 13
The width of movable contact spring 14 is more than the width of groove 23, and the assembling structure of movable contact spring 14 is simple, is easy to assemble, and limit effect is steady
Fixed, the tilting of movable contact spring 14 is flexible, is the guarantee for controlling the 17 accurate folding of movable contact 15 and stationary contact.
The present invention operation principle be：A kind of brake knot being applied in electric tool switch as shown in Figure 1 to 4
Structure, when push rod 3 is not acted on by external force, conduction connector 11 connects B+ terminals and D terminals all the time for it, makes motor all the time in short
Connect state, meanwhile, briquetting 12 depresses compression terminal 20, movable contact spring 14 be located at one end of movable contact 15 and tilts, movable contact 15 and
Stationary contact 17 separates, and motor disconnects with power supply, and motor is in stop state.
When needing to use electric tool, by lower push-rod 3 (pressing push rod 3 i.e. into housing), the movement of push rod 3 drives secondary bar
6 movements, the movement of secondary bar 6 promote ring body 7 to move, and the movement of ring body 7 directly results in conduction connector 11 and separated with B+ terminals, D terminals,
Then motor is in open-circuit condition, then proceedes to press push rod 3, and briquetting 12 and compression terminal 20 are relative to be slided, until briquetting 12 with
Compression terminal 20 departs from, and compression terminal 20 departs from briquetting 12 and is no longer influenced by pressure, then pulling force effect of the movable contact spring 14 in spring 19
Under, movable contact 15 is moved to stationary contact 17, until movable contact 15 closely contradicts with stationary contact 17, motor and power on, horse
Up to starting to rotate.
When needing to stop motor, cancel the power of pressing push rod 3, make push rod 3 under the elastic potential energy of main spring 4 to housing
Mobile outside 1, in moving process, briquetting 12 contacts with compression terminal 20 first, then lasting shifting of the compression terminal 20 in briquetting 12
Being depressed in dynamic, then the one end of movable contact 15 tilts, and is separated with stationary contact 17, after motor dead electricity, because inertia continued deceleration rotates,
But because inertia is larger, therefore underdrive needs the regular hour, and motor is in generating state in this process, by
It can not be released in electric energy, therefore the inertia potential energy of motor can not be eliminated quickly, be continued to move in push rod 3, until
The contact site 7-2 of ring body 7 and B+ terminals and D termination contacts so that B+ terminals are connected with D terminals, i.e., by motor short circuit, quickly hold
It is continuous to discharge electric energy caused by revolution, heat energy is converted electrical energy into, is discharged by the ring body 7 of metal, so as to quickly disappear
Except the rotator inertia of motor, motor is set to stop rapidly.
The principle and its effect of above-described embodiment only illustrative the invention, and the embodiment that part uses,
Not for the limitation present invention；It should be pointed out that for the person of ordinary skill of the art, the invention structure is not being departed from
On the premise of think of, various modifications and improvements can be made, these belong to protection scope of the present invention.
Claims (6)
1. a kind of brake structure being applied in electric tool switch, it is characterised in that including hollow housing (1), housing (1)
The push rod mounting hole (2) connected with inside is provided with front side board (1-1), push rod (3) is installed in push rod mounting hole (2), pushed away
In one end insertion housing (1) of bar (3), the other end stretches out housing (1) outside, and one end that push rod (3) is located in housing (1) is push rod
Inner (3-1), the other end is push rod outer end (3-2), and that relative with push rod inner (3-1) is the rear side inwall (1- of housing (1)
2) main spring (4), is provided between the push rod inner (3-1) and rear side inwall (1-2), the main spring (4) is to push rod (3)
Apply to the outside axial force of housing (1), a company is provided with one end lateral wall that the push rod (3) is located in housing (1)
Projection (5) is connect, the one end of the connection projection (5) away from push rod (3) is fixedly connected with a secondary bar being be arranged in parallel with push rod (3)
(6), secondary bar (6) extends towards push rod outer end (3-2) direction, and a strip ring body (7), secondary bar (6) are surrounded with outside secondary bar (6)
Positioned at the inside of the ring body (7), the length direction of ring body (7) is consistent with the bearing of trend of secondary bar (6), secondary bar (6) direction
One end of push rod outer end (3-2) is arranged with stage clip (8), and stage clip (8) is towards the one end of push rod outer end (3-2) and ring body (7) inwall
Offset, a B+ terminal (9) and a D are fixedly installed between the ring body (7) and the inwall of housing (1) front side board (1-1)
Terminal (10), the ring body (7) are provided with conduction connector (11) towards one end of housing (1) front side board (1-1), work as push rod
(3) not in the case of by external force, the conduction connector (11) under the driving of stage clip (8) simultaneously with B+ terminals (9) and D terminals
(10) contradict, B+ terminals (9) is connected with D terminals (10), the B+ terminals (9) and the motor positive terminal of electric tool
Or negative terminal is electrically connected with, the D terminals (10) and the motor negative terminal or positive terminal of electric tool
Son is electrically connected with.
2. a kind of brake structure being applied in electric tool switch according to claim 1, it is characterised in that described to push away
The briquetting (12) of an outwardly convex is additionally provided with one end lateral wall that bar (3) is located in housing (1), the housing (1) is interior
A movable contact spring mounting seat (13) relative with briquetting (12) is provided with, movable contact spring mounting seat is provided with movable contact spring on (13)
(14), the both ends of the movable contact spring (14) can be clicked through positioned at the both sides of movable contact spring mounting seat (13) and for branch with mounting seat (13) respectively
Row tilting, with briquetting (12) relatively, the other end is provided with movable contact (15), is gone back in the housing (1) for one end of movable contact spring (14)
A stationary contact mounting seat (16) is provided with, stationary contact mounting seat (16) is divided into the both sides of movable contact spring (14) with briquetting (12),
And stationary contact mounting seat (16) and movable contact (15) are relatively, and stationary contact (17) is fixedly installed in stationary contact mounting seat (16), move
Contact (15) relatively, a spring retention posts (18) is provided with positioned at the side of movable contact spring (14) with stationary contact (17), described dynamic
A spring (19) is connected with contact (14), the other end of the spring (19) is fixedly connected on spring retention posts (18), should
Spring (19) driving movable contact (15) and stationary contact (17) are inconsistent, and the movable contact spring (14) one end relative with briquetting (12) is set
It is equipped with the compression terminal (20) extended to briquetting (12) direction, when push rod (3) is not acted on by external force, the compression terminal (20)
Inconsistent with briquetting (12), one end that movable contact spring (14) is located at movable contact (15) tilts, and is separated with stationary contact (17), works as push rod
(3) stress is to during movement, conduction connector (11) is inevitable before the compression terminal (20) departs from briquetting (12) inside housing (1)
B+ terminals (9) and D terminals (10) are had been detached from, the movable contact (15) is electrically connected with B+ terminals (9), the stationary contact (17)
The positive and negative electrode of power supply is electrically connected with D terminals (10), or the movable contact (15) is electrically connected with D terminals (10), it is described
The positive and negative electrode of power supply is electrically connected with B+ terminals (9) for stationary contact (17).
3. a kind of brake structure being applied in electric tool switch according to claim 1, it is characterised in that described to push away
Bar the inner (3-1) is axially arranged a main spring installing blind (21), and it is blind that main spring installation is inserted in one end of the main spring (4)
In hole (21), a glue nail relative with main spring installing blind (21) is provided with the rear side inwall (1-2) of the housing (1)
(22), the main spring (4) is set on glue nail (22).
A kind of 4. brake structure being applied in electric tool switch according to claim 1, it is characterised in that the ring
Body (7) is formed by laths of metal bending, and the conduction connector (11) is ring body (7) itself, and the ring body (7) includes direction and pushed away
The guide part (7-1) of bar the inner (3-1) and the contact site (7-2) towards front side board (1-1), the width of the guide part (7-1)
External diameter than stage clip (8) is big 0.5~1.5mm, and 2/3rds of length not less than the length of secondary bar (6), the secondary bar (6) is set
In guide part (7-1), the end bending part circular arc transition of contact site (7-2) forms arc contact surface (7-3), the B+ ends
Son and D terminals are respectively arranged with an inclined-plane, and two inclined-planes are set into splayed, and two inclined-planes and two arc contact surfaces (7-3) one
One correspondence.
A kind of 5. brake structure being applied in electric tool switch according to claim 2, it is characterised in that the bullet
Spring locating dowel (18) is located at the same side of movable contact spring (14) with stationary contact mounting seat (16), and close to movable contact (15) one end, institute
State spring (19) and a pulling force is applied to movable contact spring (14), drive movable contact (15) closely to be contradicted with stationary contact (17).
6. a kind of brake structure being applied in electric tool switch according to claim 2, it is characterised in that described dynamic
Contact mounting seat (13) is the plate set perpendicular to push rod (3), and mounting seat (13) is provided with towards one end of briquetting (12) to be used for
The groove (23) of movable contact spring (14) is installed, is embedded in the middle part of the movable contact spring (14) in groove (23), positioned at mounting seat (13) two
The width of the movable contact spring (14) of side is more than the width of groove (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710896048.9A CN107591268B (en) | 2017-09-28 | 2017-09-28 | Brake structure applied to electric tool switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710896048.9A CN107591268B (en) | 2017-09-28 | 2017-09-28 | Brake structure applied to electric tool switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107591268A true CN107591268A (en) | 2018-01-16 |
| CN107591268B CN107591268B (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710896048.9A Active CN107591268B (en) | 2017-09-28 | 2017-09-28 | Brake structure applied to electric tool switch |
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| CN (1) | CN107591268B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06223674A (en) * | 1993-01-27 | 1994-08-12 | Omron Corp | Trigger switch |
| CN201936791U (en) * | 2011-03-11 | 2011-08-17 | 乐清市杰拉华电器有限公司 | DC speed regulation switch |
| CN102568896A (en) * | 2011-12-05 | 2012-07-11 | 张家港华捷电子有限公司 | Speed control switch |
| CN103198937A (en) * | 2013-03-08 | 2013-07-10 | 上海拜骋电器有限公司 | Linkage combined brake structure of switch, switch and electric tool |
| CN104282456A (en) * | 2014-09-16 | 2015-01-14 | 张家港华捷电子有限公司 | Switch in electric tool |
| CN207338196U (en) * | 2017-09-28 | 2018-05-08 | 苏州华之杰电讯股份有限公司 | A kind of brake structure being applied in electric tool switch |
-
2017
- 2017-09-28 CN CN201710896048.9A patent/CN107591268B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06223674A (en) * | 1993-01-27 | 1994-08-12 | Omron Corp | Trigger switch |
| CN201936791U (en) * | 2011-03-11 | 2011-08-17 | 乐清市杰拉华电器有限公司 | DC speed regulation switch |
| CN102568896A (en) * | 2011-12-05 | 2012-07-11 | 张家港华捷电子有限公司 | Speed control switch |
| CN103198937A (en) * | 2013-03-08 | 2013-07-10 | 上海拜骋电器有限公司 | Linkage combined brake structure of switch, switch and electric tool |
| CN104282456A (en) * | 2014-09-16 | 2015-01-14 | 张家港华捷电子有限公司 | Switch in electric tool |
| CN207338196U (en) * | 2017-09-28 | 2018-05-08 | 苏州华之杰电讯股份有限公司 | A kind of brake structure being applied in electric tool switch |
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| CN107591268B (en) | 2020-06-19 |
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