CN110323084B - Brushless motor integrated control switch - Google Patents
Brushless motor integrated control switch Download PDFInfo
- Publication number
- CN110323084B CN110323084B CN201910658805.8A CN201910658805A CN110323084B CN 110323084 B CN110323084 B CN 110323084B CN 201910658805 A CN201910658805 A CN 201910658805A CN 110323084 B CN110323084 B CN 110323084B
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- Prior art keywords
- reversing
- base
- deflector rod
- bracket
- speed regulating
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- 230000001105 regulatory effect Effects 0.000 claims description 79
- 239000002184 metal Substances 0.000 claims description 39
- 239000011888 foil Substances 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 7
- 239000012634 fragment Substances 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
- H01H23/02—Details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
- H01H23/02—Details
- H01H23/12—Movable parts; Contacts mounted thereon
- H01H23/14—Tumblers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/08—Arrangements for controlling the speed or torque of a single motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/30—Arrangements for controlling the direction of rotation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to a brushless motor integrated control switch, which comprises a first cover plate, a second cover plate, a base, a PCB control plate and a switch component, wherein the first cover plate and the second cover plate are mutually embedded and assembled; the switch assembly and the PCB control board are arranged in the inner cavity of the base, the reversing assembly of the switch assembly is arranged in the reversing chute of the base, the reversing crank comprises a rotating shaft, a deflector rod and a deflector handle, the free end part of the deflector rod is provided with a bracket, the bracket is abutted with the inner wall of the base through a reversing spring, and one side of the bracket, facing the deflector rod, is provided with a plurality of grooves; the two opposite sides of the reversing slide block are respectively in sliding abutting connection with the side wall of the reversing slide groove and the deflector rod, a reversing guide groove is formed in the reversing slide block, a guide column is arranged on the deflector rod, and the deflector rod swings along the circumferential direction of the rotating shaft to drive the reversing slide block to axially slide back and forth along the reversing slide groove; the reversing slide block is in sliding contact with the inner bottom surface of the base and is opposite to the PCB control board, and the reversing slide block is fixedly connected with a reversing spring plate. After the invention is used, the integrated control switch has stable reversing, easy reversing and longer service life.
Description
Technical Field
The invention relates to the field of brushless motors, in particular to an integrated control switch of a brushless motor.
Background
Most of the current brushless motor switches in the market adopt a switch part and a control part which are separately designed, namely, the switch part and the control part are composed of independent brushless signal switches and independent circuit control boards. The mode has the problems of complex connection between the switch and the control board, poor reliability, low assembly efficiency, difficult maintenance, overhigh maintenance cost and the like.
In order to solve the above problems, enterprises have attempted to integrate the switch part and the brushless motor control part of the electric tool into one integrated control switch, integrate the circuit control system (including the main control circuit, the speed regulating circuit and the reversing circuit) with the mechanical signal part of the switch, save the assembly space, simplify the process, and save the cost. The utility model named "a brushless integrated switch" (application No. 201810139563.7) and the utility model named "a brushless integrated switch" (application No. 201820242894.9) each propose a solution in which a switch portion and a control portion are integrated.
However, the above scheme has the following problems: the reversing effect of the reversing structure of the brushless motor is poor, the service life is short, and the integral control switch is possibly poor in overall sense texture and short in service life, so that the product sales is not facilitated.
Disclosure of Invention
In view of the above, the present invention provides an integrated control switch for a brushless motor. After the invention is used, the integrated control switch has stable reversing, longer service life and improved product quality of enterprises.
The technical scheme adopted by the invention is as follows:
The integrated control switch of the brushless motor comprises a first cover plate, a second cover plate, a box-shaped base, a first PCB control board and a switch component, wherein the first cover plate and the second cover plate are positioned at two sides of the base and are assembled with the base in a jogged manner; the switch assembly is arranged in the cavity of the base, the first PCB control board is arranged in the base and covers the switch assembly, the first PCB control board is fixedly provided with a reversing metal foil and a speed regulating metal foil towards one face of the switch assembly, the base is provided with an input terminal and an output terminal, the speed regulating metal foil is connected with the input terminal through a circuit on the first PCB control board, and the reversing metal foil is connected with the output terminal through a circuit on the first PCB control board, and the switch assembly is characterized in that: the switch assembly comprises a reversing assembly and a speed regulating assembly, wherein the inner cavity of the base is provided with a reversing chute for placing the reversing assembly and a speed regulating cavity for placing the speed regulating assembly, the speed regulating cavity is internally provided with a speed regulating chute, one side of the speed regulating chute is provided with a conductive metal sheet and a rocker spring sheet which are connected in series in the switch circuit, and the speed regulating assembly controls the state of the rocker spring sheet to control the opening and closing of the switch circuit; a deflector rod hole communicated with the reversing chute and a shaft hole which is perpendicular to the deflector rod hole and is arranged at the other end of the deflector rod hole relative to the reversing chute are arranged on the side wall of the base at one axial end of the reversing chute, and at least one of the two ends of the shaft hole is communicated with the outside of the base; the reversing assembly is arranged in the reversing chute and comprises a reversing crank which is rotationally connected in the shaft hole, wherein the reversing crank comprises a rotating shaft which is rotationally connected in the shaft hole and at least one end of which extends out of the shaft hole, a deflector rod which is fixedly connected on the rotating shaft and is inserted into the reversing chute through a deflector rod hole, and a deflector rod which is fixedly connected at one end of the rotating shaft, which is positioned outside the base, the deflector rod and the deflector rod are both vertical to the axial direction of the rotating shaft, a support is oppositely arranged at the free end of the deflector rod, one end of the support, which is opposite to the deflector rod, is abutted with the inner side wall of the base through a reversing spring, two or three grooves are formed in one side of the support, which faces the deflector rod, all the grooves are sequentially arranged along the radial direction of the rotating shaft, and the free ends of the deflector rod extend into one groove through smooth convex ribs;
The reversing assembly further comprises a reversing slide block, the reversing slide block is positioned between the deflector rod and the side wall of the reversing chute, two opposite sides of the reversing slide block are respectively in sliding butt joint with the side wall of the reversing chute and the deflector rod, one side of the reversing slide block, which faces the deflector rod, is provided with a reversing guide groove which is obliquely arranged relative to the axial direction of the reversing chute, the deflector rod is provided with a guide post which is inserted into the reversing guide groove and can slide along the length direction of the reversing guide groove, and the deflector rod swings along the circumferential direction of the rotating shaft to drive the reversing slide block to slide back and forth along the axial direction of the reversing chute;
one side of the reversing slide block, which faces the inner bottom surface of the base, is in sliding contact with the inner bottom surface of the base, one surface of the reversing slide block, which is opposite to the base, faces the first PCB control board, and a reversing spring plate which is in contact with the reversing metal foil to realize electric connection is fixedly connected to the reversing slide block.
As a preferred scheme, set up the speed governing hole with speed governing spout intercommunication on the base lateral wall of speed governing spout axial one end, speed governing subassembly includes sliding connection in the downthehole push rod of speed governing, sliding connection in the speed governing spout and with push rod fixed connection's speed governing slider to and set up the speed governing spring who keeps away from push rod one end at the speed governing slider, speed governing spring sets up along speed governing spout axial, one end is contradicted with the speed governing slider, the other end is in butt with the base inside wall that speed governing spring contradicted, fixedly connected with is used for fixing a position speed governing fastener of speed governing spring on the base inside wall that speed governing spring contradicted, at the speed governing slider one side towards first PCB control panel is fixed and is provided with two speed governing shell fragments, two speed governing shell fragments are just right and butt with speed governing metal foil simultaneously.
As a preferable scheme, the speed regulating spring is a precompressed ring spring, the speed regulating clamping piece is a cone, one end of the speed regulating clamping piece with the larger diameter is fixedly connected with the inner side wall of the base, and the other end of the speed regulating clamping piece is inserted into an inner hole of the speed regulating spring to limit the side swing of the speed regulating spring.
As a preferred solution, two reversing springs are arranged at the bottom of the bracket.
As a preferable scheme, the reversing guide groove and the axial direction of the reversing chute form an included angle of 20-80 degrees.
As a preferable scheme, a first bracket opening for inserting the end part of the bracket is formed in the inner bottom surface of the base, and the bracket can axially slide along the reversing chute under the limitation of the first bracket opening.
As a preferred scheme, a notch is formed in the first PCB control board, a second bracket opening is formed between the notch and the inner side wall of the base, the bracket is inserted into the second bracket opening towards one end of the first PCB control board, the bracket can only move along the axial direction of the reversing chute under the limitation of the first bracket opening and the second bracket opening, and all the grooves are located in the base.
As a preferable scheme, any two adjacent grooves are connected through smooth convex ribs, and the free end of the deflector rod is hemispherical and stretches into one groove 1.
The beneficial effects of the invention are as follows:
The invention realizes the locking of the position of the shifting handle by utilizing the matching of the shifting handle and a plurality of grooves on the bracket, realizes the sliding of the driving reversing slide block in the swinging process of the shifting handle by matching of the guide post and the reversing guide groove, and drives the reversing elastic piece on the reversing slide block to move so as to connect different reversing metal foils, thereby realizing the reversing of the brushless motor. The support moves towards the bottom and returns under the combined action of the bottom of the reversing crank and the reversing spring in the reversing process, when the free end of the deflector rod slides relative to the support, the support can swing slightly under the action of the reversing spring so that the free end of the deflector rod slides from one groove to the other groove more easily, the deflector rod can be reversed more easily, meanwhile, the friction force between the deflector rod and the support is reduced, the abrasion of the support is reduced, and the service life of the reversing assembly of the switch is prolonged.
Drawings
FIG. 1 is a schematic diagram of the combination state of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a front view of the base of the present invention.
Fig. 4 is a rear view of the base of the present invention.
Fig. 5 is a perspective view of a base according to the present invention.
Fig. 6 is a perspective view of a reversing assembly according to the present invention.
Fig. 7 is a front view of the reversing assembly of the present invention.
Fig. 8 is a schematic diagram of a reversing crank in accordance with the present invention.
Fig. 9 is a schematic diagram of a reversing slide according to the present invention.
Fig. 10 is a schematic view of a stent according to the present invention.
FIG. 11 is a schematic view of a timing assembly according to the present invention.
Fig. 12 is a schematic view of the reversing assembly assembled in a base.
Fig. 13 is a schematic view of the timing assembly assembled in the base.
Fig. 14 is a schematic view of both the reversing assembly and the governor assembly assembled in the base.
Fig. 15 is a schematic diagram of the assembly of a first PCB control board and a second PCB control board.
Fig. 16 is a schematic view of a first PCB control board and base assembly.
Fig. 17 is a cross-sectional view of the first PCB control board and the base assembled in the A-A direction.
Wherein: 1. a first cover plate; 2. a PCB control board; 201. a first PCB control board; 2011. a speed regulating metal foil; 2012. reversing the metal foil; 202. a second PCB control board; 203. an FPC; 3. a reversing assembly; 301. a reversing crank; 3011. a guide post; 3012. a rotating shaft; 3013. a deflector rod; 3014. a shifting handle; 302. a bracket; 3021. a groove; 3022. convex ribs; 303. a reversing spring; 304. a reversing slide block; 3041. a reversing guide groove; 3042. a reversing spring plate; 4. a speed regulating assembly; 401. a push rod; 402. a speed regulating slide block; 403. a speed regulating spring plate; 404. a speed regulating spring; 405. a speed regulation clamping piece; 5. a base; 501. a deflector rod hole; 502. a speed regulating hole; 503. a reversing chute; 504. a speed regulating cavity; 5041. a speed regulation chute; 505. a first bracket opening; 506. a shaft hole; 507. a first separator; 508. a second bracket opening; 6. a second cover plate; 7. an input terminal; 8. an output terminal; 9. a conductive metal sheet; 10. a rocker spring plate; 11. closing the spring.
Detailed Description
The following describes specific embodiments of the present invention with reference to the drawings.
The first cover plate 1 and the second cover plate 6 are positioned at two sides of the base 5 and are assembled with the base 5 in a jogged manner, the base 5 is in a box-shaped structure, an inner cavity is formed in the base 5, one side of the first cover plate 1 facing the opening is a mouth part, one side of the second cover plate 6 facing the second cover plate is a bottom part, the first PCB control plate 201 is arranged at the mouth part of the base 5 and is kept fixed by being abutted by the first cover plate 1, the second cover plate 6 is in a box-shaped structure and is a mouth part facing the base 5, after the second cover plate 6 is covered on the base 5, a cavity is formed with the bottom part of the base 5, the second PCB control plate 202 is arranged in a cavity formed by the base 5 and the second cover plate 6, a notch is formed in the base 5, the notch is arranged in the inner cavity of the base 5, the notch is divided into a reversing chute 503 for placing the reversing assembly 3 and a speed regulating cavity 504 for placing the speed regulating assembly 4 by the first baffle plate, the speed regulating cavity 504 is provided with a chute 5041, the speed regulating cavity 5041 is arranged at one end of the speed regulating cavity 5041 opposite to the side wall of the base 5, which is communicated with the shaft hole 506 of the base 5, and the shaft hole 506 is arranged at one end of the speed regulating rod 501 is communicated with the shaft hole 506 of the base 5, which is communicated with the shaft hole 506 at the other end of the speed regulating rod 501, and is arranged at the other end of the shaft hole 506 is communicated with the shaft hole 503 of the speed regulating rod 501.
A speed regulation metal foil 2011 and a reversing metal foil 2012 are fixedly arranged on the surface of the first PCB control board 201 facing the base 5, the speed regulation metal foil 2011 and the reversing metal foil 2012 respectively facing the speed regulation chute 5041 and the reversing chute 503.
The reversing assembly 3 is arranged in the reversing chute 503 and comprises a reversing crank 301 rotatably connected in the shaft hole 506, the reversing crank 301 comprises a rotating shaft 3012 rotatably connected in the shaft hole 506, two ends of the rotating shaft 3012 extend out of the shaft hole 506 respectively, a deflector rod 3013 fixedly connected to the rotating shaft 3012 and inserted into the reversing chute 503 through the deflector rod hole 501, and a deflector rod 3014 fixedly connected to any end of the rotating shaft 3012 outside the base 5, the deflector rod 3013 and the deflector rod 3014 are perpendicular to the axial direction of the rotating shaft 3012, a bracket 302 is oppositely arranged at the free end of the deflector rod 3013, one end of the bracket 302 opposite to the deflector rod 3013 is abutted against the inner side wall of the base 5 through a reversing spring 303, three grooves 3021 are formed in one side of the bracket 302 facing the deflector rod 3013, the three grooves 3021 are sequentially arranged along the radial direction of the rotating shaft 3012, the free ends of the deflector rod 3013 are connected through smooth convex ribs 3022, and the free ends of the deflector rod 3013 are hemispherical and extend into one groove 3021.
The reversing assembly 3 further comprises a reversing slide block 304, the reversing slide block 304 is located between the deflector rod 3013 and the first partition 507, two sides of the reversing slide block 304 are respectively in sliding contact with the first partition 507 and the deflector rod 3013, a reversing guide groove 3041 which forms an angle of 30 degrees, 45 degrees or 60 degrees with the axial direction of the reversing slide groove 503 is formed in one side of the reversing slide block 304, which faces the deflector rod 3013, a guide post 3011 which is inserted into the reversing guide groove 3041 is arranged on the deflector rod 3013, the guide post 3011 can slide along the length direction of the reversing guide groove 3041, and the deflector rod 3014 swings along the circumferential direction of the rotating shaft 3012 to drive the reversing slide block 304 to slide back and forth along the axial direction of the reversing slide groove 503.
One side of the reversing slide block 304 facing the inner bottom surface of the base 5 is in sliding contact with the inner bottom surface of the base 5, one surface of the reversing slide block 304 facing away from the base 5 faces the first PCB control board 201 and is opposite to reversing metal foils 2012 arranged on the first PCB control board 201, one side of the reversing slide block 304 facing the first PCB control board 201 is fixedly connected with reversing elastic pieces 3042 used for being in contact with the reversing slide block 304 to realize electric connection, the number of the reversing metal foils 2012 is three, the reversing elastic pieces are sequentially and discretely arranged along the axial direction of the reversing chute 503, and when the reversing elastic pieces 3042 axially move along the reversing chute 503, the reversing elastic pieces can be in contact with any two adjacent reversing metal foils 2012 to realize the conduction of the two adjacent reversing metal foils 2012, and can also be arranged between the two empty positions of the three reversing metal foils 2012 to disconnect a switch circuit.
The bottom surface of the base 5 is provided with a first bracket opening 505 corresponding to the bracket 302, one end of the bracket 302, which faces the inner bottom surface of the base 5, is inserted into the first bracket opening 505, the first PCB control board 201 is provided with a notch, a second bracket opening 508 is formed by the notch and the inner side wall of the base 5, one end of the bracket 302, which faces the first PCB control board 201, is inserted into the second bracket opening 508, and the bracket 302 can only move along the axial direction of the reversing chute 503 under the limitation of the first bracket opening 505 and the second bracket opening 508, and all the grooves 3021 are positioned inside the base 5.
As shown in fig. 3, 11 and 13, the speed regulating hole 502 is located at one axial end of the speed regulating chute 5041, the speed regulating assembly 4 comprises a push rod 401 slidably connected in the speed regulating chute 5041, a speed regulating slider 402 slidably connected in the speed regulating chute 5041 and fixedly connected with the push rod 401, and a speed regulating spring 404 arranged at one end of the speed regulating slider 402 far away from the push rod 401, wherein the speed regulating spring 404 is axially arranged along the speed regulating chute 5041, one end of the speed regulating spring 404 is abutted against the speed regulating slider 402, the other end of the speed regulating spring abuts against the inner side wall of the base 5, a speed regulating clamping piece 405 for positioning the speed regulating spring 404 is fixedly connected with the inner side wall of the base 5 abutted against the speed regulating spring 404, in this embodiment, the speed regulating spring 404 is a precompressed ring spring, the speed regulating clamping piece 405 is a cone, and one end with a large diameter of the speed regulating clamping piece 405 is fixedly connected with the inner side wall of the base 5, and the other end of the speed regulating spring 404 is inserted into the inner hole of the speed regulating spring 404 to limit the side swing. Two speed regulating spring plates 403 are fixedly arranged on one side of the speed regulating slide block 402 facing the first PCB control board 201, and the two speed regulating spring plates 403 are opposite to and abutted against the speed regulating metal foil 2011 at the same time.
As shown in fig. 13, a side of the speed regulation chute 5041 away from the reversing component 3 is provided with a conductive metal sheet 9 and a rocker spring 10 connected in series in a switch circuit, the speed regulation slider 402 of the speed regulation component 4 is abutted against the upper end of the rocker spring 10 under the condition of no external force, the upper end of the rocker spring 10 is pressed to move rightward so as to separate the lower end of the rocker spring 10 from the conductive metal sheet 9, the switch circuit is disconnected, when the push rod 401 is pushed to move downward, the upper end of the rocker spring 10 is separated from the speed regulation slider 402, and under the traction of the closing spring 11, the lower end of the rocker spring 10 is abutted against the conductive metal sheet 9 so as to close the switch circuit.
In order to reduce the size of the switch, the PCB control board is divided into a first PCB control board 201 and a second PCB control board 202, and the first PCB control board 201 and the second PCB control board 202 are connected through an FPC203 (i.e., a flexible circuit board). In this embodiment, the speed regulating metal foil 2011 on the first PCB control board 201 is connected to the input terminals 7 through the circuits on the first PCB control board 201, the FPC203 and the second PCB control board 202, the reversing metal foil 2012 on the first PCB control board 201 is connected to the output terminals 8 through the circuits on the first PCB control board 201, the FPC203 and the second PCB control board 202, two input terminals 7 are used for external power supply, three output terminals 8 are used for external load, and the load is brushless motor.
After the invention is used, when the speed is required to be regulated, only the push rod 401 is required to be pushed, the push rod 401 pushes the speed regulating slide block 402 to slide in the speed regulating slide groove 5041, so that the position of the speed regulating elastic sheet 403 fixedly arranged on one side of the speed regulating slide block 402 is changed, the position of the speed regulating elastic sheet 403 contacting the speed regulating metal foil 2011 is also changed, the circuit resistance value of the PCB control board 2 is changed, and the speed control of the brushless motor by the control switch is realized.
As shown in fig. 6, when the free end of the lever 3013 is inserted into the middle groove 3021, the guide post 3011 is located in the middle position of the reversing guide groove 3041, and at this time, two ends of the reversing spring 3042 are respectively located in two spaces between the three reversing metal foils 2012, so that the circuit of the control switch is turned off, and is in a protection state.
As shown in fig. 7, when a motor rotation direction needs to be selected, a manual toggle handle 3014 swings clockwise, the toggle handle 3014 drives a rotating shaft 3012 to rotate, the rotating shaft 3012 drives a toggle rod 3013 to rotate clockwise, the toggle rod 3013 rotates to enable a free end of the toggle rod 3013 to slide into a groove 3021 on the left side of the toggle rod 3011 from a middle groove 3021 so as to achieve locking, in the rotating process of the toggle rod 3013, a guide post 3011 swings, the swing of the guide post 3011 drives a reversing slide block 304 to slide along the reversing slide groove 503 in a direction away from the rotating shaft 3012, the reversing slide block 304 drives a reversing elastic sheet 3042 to move axially along the reversing slide groove 503 so as to switch on two adjacent reversing metal foils 2012, and a control switch circuit can be switched on to control the brushless motor to rotate at different speeds in one direction under the control of a push rod 401.
When the rotation direction of the motor needs to be changed, the manual stirring handle 3014 swings anticlockwise, so that the free end of the stirring rod 3013 slides into one groove 3021 on the right side of the middle groove 3021, the guide post 3011 drives the reversing slide block 304 to slide towards the direction close to the rotating shaft 3012 in the swinging process of the stirring rod 3013, the reversing slide block 304 drives the reversing elastic sheet 3042 to axially move along the reversing slide groove 503 to connect the other reversing metal foil 2012 with the middle reversing metal foil 2012, the control switch circuit can be connected, and the brushless motor can be controlled to rotate in the opposite direction at different speeds under the control of the push rod 401.
Because the position of the reversing slide block 304 changes to change the contact position of the reversing elastic sheet 3042 and the reversing metal foil 2012, the signal of the external three-phase power changes, so as to control the brushless motor to perform reversing work. When the free end of the shift lever 3013 moves away from one of the grooves 3021, the shift lever 3013 presses the support 302 against the inner side wall of the base 5, the reversing spring 303 is compressed, and when the free end of the shift lever 3013 enters the other groove 3021, the support 302 is reset under the action of the reversing spring 303, so that the shift lever 3013 is limited in the groove 3021. In the reversing process, the bracket 302 moves towards the bottom and returns to the original position, and the integral contact area of the bracket 302 is large, so that the stability is better, and the travel of the reversing spring 303 is relatively smaller, so that the integrated control switch is stable in reversing after the reversing device is used, the service life is longer, and the product quality of enterprises is improved.
The above description is intended to illustrate the invention and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the invention.
Claims (8)
1. The integrated control switch of the brushless motor comprises a first cover plate (1), a second cover plate (6), a box-shaped base (5), a first PCB control board (201) and a switch assembly, wherein the first cover plate (1) and the second cover plate (6) are positioned at two sides of the base (5) and are assembled in a jogged manner with the base (5); The switch assembly is arranged in a cavity of the base (5), the first PCB control board (201) is arranged in the base (5) and covers the switch assembly, one surface of the first PCB control board (201) facing the switch assembly is fixedly provided with a reversing metal foil (2012) and a speed regulating metal foil (2011), the base (5) is provided with an input terminal (7) and an output terminal (8), the speed regulating metal foil (2011) is connected with the input terminal (7) through a circuit on the first PCB control board (201), the reversing metal foil (2012) is connected with the output terminal (8) through a circuit on the first PCB control board (201), The method is characterized in that: the switch assembly comprises a reversing assembly (3) and a speed regulating assembly (4), wherein a reversing chute (503) for placing the reversing assembly (3) and a speed regulating cavity (504) for placing the speed regulating assembly (4) are arranged in an inner cavity of the base (5), a speed regulating chute (5041) is arranged in the speed regulating cavity (504), one side of the speed regulating chute (5041) is provided with a conductive metal sheet (9) and a rocker spring sheet (10) which are connected in series in a switch circuit, and the speed regulating assembly (4) controls the state of the rocker spring sheet (10) so as to control the opening and closing of the switch circuit; A deflector rod hole (501) communicated with the reversing chute (503) and a shaft hole (506) perpendicular to the deflector rod hole (501) and arranged at the other end of the deflector rod hole (501) relative to the reversing chute (503) are arranged on the side wall of the base (5) at one axial end of the reversing chute (503), and at least one of the two ends of the shaft hole (506) is communicated with the outside of the base (5); The reversing assembly (3) is arranged in the reversing chute (503) and comprises a reversing crank (301) which is rotationally connected in the shaft hole (506), the reversing crank (301) comprises a rotating shaft (3012) which is rotationally connected in the shaft hole (506) and at least one end of which extends out of the shaft hole (506), a deflector rod (3013) which is fixedly connected on the rotating shaft (3012) and is inserted into the reversing chute (503) through the deflector rod hole (501), and a deflector handle (3014) which is fixedly connected at one end of the rotating shaft (3012) which is positioned outside the base (5), the deflector rod (3013) and the deflector handle (3014) are both vertical to the axial direction of the rotating shaft (3012), The free end part of the deflector rod (3013) is oppositely provided with a bracket (302), one end of the bracket (302) opposite to the deflector rod (3013) is abutted with the inner side wall of the base (5) through a reversing spring (303), two or three grooves (3021) are formed in one side of the bracket (302) facing the deflector rod (3013), all the grooves (3021) are sequentially arranged along the radial direction of the rotating shaft (3012), any two adjacent grooves (3021) are connected through a smooth convex rib (3022), and the free end of the deflector rod (3013) extends into one of the grooves (3021);
The reversing assembly (3) further comprises a reversing slide block (304), the reversing slide block (304) is positioned between the deflector rod (3013) and the side wall of the reversing chute (503), two opposite sides of the reversing slide block (304) are respectively in sliding butt joint with the side wall of the reversing chute (503) and the deflector rod (3013), a reversing guide groove (3041) which is obliquely arranged relative to the axial direction of the reversing chute (503) is formed in one side of the reversing slide block (304) facing the deflector rod (3013), a guide post (3011) which is inserted into the reversing guide groove (3041) and can slide along the length direction of the reversing guide groove (3041) is arranged on the deflector rod (3013), and the deflector rod (3014) swings along the circumferential direction of the rotating shaft (3012) to drive the reversing slide block (304) to slide back and forth along the axial direction of the reversing chute (503);
One side of the reversing slide block (304) facing the inner bottom surface of the base (5) is in sliding contact with the inner bottom surface of the base (5), one surface of the reversing slide block (304) facing away from the base (5) faces the first PCB control board (201), and a reversing elastic sheet (3042) which is in contact with the reversing metal foil (2012) to realize electric connection is fixedly connected to the reversing slide block (304).
2. The brushless motor integrated control switch as claimed in claim 1, wherein: the utility model provides a speed governing subassembly (4) is including push rod (401) of sliding connection in speed governing hole (502), sliding connection in speed governing spout (5041) and with push rod (401) fixed connection's speed governing slider (402) on base (5) lateral wall of speed governing spout (5041) axial one end, and set up speed governing spring (404) of push rod (401) one end is kept away from to speed governing slider (402), speed governing spring (404) set up along speed governing spout (5041) axial, one end is contradicted with speed governing slider (402), the other end is in butt with base (5) inside wall, fixedly connected with on base (5) inside wall that is contradicted with speed governing spring (404) is used for location speed governing fastener (405) of speed governing spring (404), one side towards first PCB control panel (201) at speed governing slider (402) is fixed with two speed governing shell fragments (403), two speed governing shell fragments (403) are just right and butt with speed governing metal foil (2011) simultaneously.
3.A brushless motor integrated control switch as claimed in claim 2, wherein: the speed regulating spring (404) is a precompressed ring spring, the speed regulating clamping piece (405) is a cone, one end of the speed regulating clamping piece (405) with a large diameter is fixedly connected with the inner side wall of the base (5), and the other end of the speed regulating clamping piece is inserted into an inner hole of the speed regulating spring (404) to limit the side swing of the speed regulating spring (404).
4. The brushless motor integrated control switch as claimed in claim 1, wherein: two reversing springs (303) are arranged at the bottom of the bracket (302).
5. The brushless motor integrated control switch as claimed in claim 1, wherein: the reversing guide groove (3041) and the axial direction of the reversing slide groove (503) form an included angle of 20-80 degrees.
6. The brushless motor integrated control switch as claimed in claim 1, wherein: a first bracket opening (505) for inserting the end part of the bracket (302) is formed in the inner bottom surface of the base (5), and the bracket (302) can axially slide along the reversing chute (503) under the limitation of the first bracket opening (505).
7. The brushless motor integrated control switch as claimed in claim 6, wherein: a notch is formed in the first PCB control board (201), a second bracket opening (508) is formed between the notch and the inner side wall of the base (5), the bracket (302) is inserted into the second bracket opening (508) towards one end of the first PCB control board (201), the bracket (302) can only move along the axial direction of the reversing chute (503) under the limitation of the first bracket opening (505) and the second bracket opening (508), and all grooves (3021) are located inside the base (5).
8. The brushless motor integrated control switch as claimed in claim 1, wherein: any two adjacent grooves (3021) are connected through smooth convex ribs (3022), and the free end of the deflector rod (3013) is hemispherical and extends into one groove (3021).
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| CN110867332B (en) * | 2019-10-25 | 2024-08-09 | 苏州华之杰电讯股份有限公司 | Dome lamp switch |
| CN115274327B (en) * | 2022-09-19 | 2022-12-27 | 苏州华之杰电讯股份有限公司 | Reversing shifting handle mounting structure applied to linear sliding contact type reversing switch |
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| US3814886A (en) * | 1973-02-12 | 1974-06-04 | Cutler Hammer Inc | Miniature electrical reversing switch mounted on trigger operated switch for hand-held tools |
| DE19955640B4 (en) * | 1999-11-19 | 2004-07-08 | Valeo Schalter Und Sensoren Gmbh | Electrical switching device |
| CN206098245U (en) * | 2016-08-26 | 2017-04-12 | 东莞辰达电器有限公司 | a speed switch |
| CN107591261B (en) * | 2017-09-29 | 2021-01-26 | 苏州华之杰电讯股份有限公司 | Brushless direct current pure signal switch |
| CN108198707A (en) * | 2018-02-11 | 2018-06-22 | 苏州华之杰电讯股份有限公司 | A kind of brushless integrated switch |
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| CN210006627U (en) * | 2019-07-22 | 2020-01-31 | 苏州华之杰电讯股份有限公司 | brushless motor integrated control switch |
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