CN114143997A - Brushless motor controller for hand-push mower - Google Patents
Brushless motor controller for hand-push mower Download PDFInfo
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- CN114143997A CN114143997A CN202111439325.6A CN202111439325A CN114143997A CN 114143997 A CN114143997 A CN 114143997A CN 202111439325 A CN202111439325 A CN 202111439325A CN 114143997 A CN114143997 A CN 114143997A
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- placing shell
- controller
- plate
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- brush rod
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
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Abstract
The utility model belongs to the technical field of motor controllers, and particularly relates to a brushless motor controller for a hand-push type mower, which comprises a placing shell; a fixed seat is arranged inside the placing shell; a controller body is arranged in the fixed seat; a plurality of groups of elastic ropes a are arranged between the fixed seat and the placing shell; one end of the elastic rope a is connected with the end part of the fixed seat, and the other end of the elastic rope a is connected with the inner side wall of the placing shell; the controller body is hung inside the placing shell through the elastic rope a, when the placing shell vibrates, the vibration received by the controller body can be dissipated at the elastic rope a, the influence of the vibration on the controller body is reduced, and the controller body can still keep a good working state in long-time use.
Description
Technical Field
The utility model belongs to the technical field of motor controllers, and particularly relates to a brushless motor controller for a hand-push type mower.
Background
The motors for lawn mowers are generally brushless motors, and the motors are all provided with a special controller for controlling the motors.
A chinese patent with publication number CN212138443U discloses a drive controller for a portable mower, which comprises a drive controller device main body, a connecting plate, a first protection plate, a second protection plate and a third protection plate, wherein the right side of the drive controller device main body is provided with the connecting plate, the upper end of the connecting plate is inserted with the first protection plate, the lower part of the connecting plate is inserted with the third protection plate, and the third protection plate and the first protection plate all penetrate through the connecting plate. The utility model is provided with a driving controller device main body, a connecting plate, a first protection plate, a third protection plate, a second inserting block, a rubber block and a first groove.
The existing motor controller is used for carrying out timely detection control on the motor, namely the controller is installed on the mower at a position closer to the motor, the motor is monitored and controlled in real time when the controller is used and observed for a long time, and the motor runs for a long time, so that the vibration generated by the motor has great influence on the normal detection of an anti-falling sensor and a temperature protector of the controller.
Therefore, the utility model provides a brushless motor controller for a hand-push type mower.
Disclosure of Invention
To remedy the deficiencies of the prior art, at least one of the technical problems set forth in the background is addressed.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the brushless motor controller for the hand-push type mower comprises a placing shell, a motor driving device and a motor control device, wherein the placing shell is arranged on the placing shell; a fixed seat is arranged inside the placing shell; a controller body is arranged in the fixed seat; a plurality of groups of elastic ropes a are arranged between the fixed seat and the placing shell; one end of the elastic rope a is connected with the end part of the fixed seat, and the other end of the elastic rope a is connected with the inner side wall of the placing shell; when the controller is used, the placing shell is installed on the mower and is close to the position of the motor, then the mower can be normally started to weed, the shell is placed in the controller body and is set to be suspended, the mower can work, the motor vibrates, the vibration effect can be conducted to the controller body through the placing shell, the fixing seat and the elastic rope a, however, the controller body is hung in the placing shell through the elastic rope a, when the placing shell vibrates, the vibration of the controller body can be dissipated at the elastic rope a, the influence of the vibration on the controller body is reduced, the controller body can be kept in a good working state in long-time use.
Preferably, an under-voltage protector, a locked rotor protector and a motor phase line circuit breaker are arranged in the controller body; an under-voltage protector, an over-voltage protector, an anti-toppling sensor and a temperature protector are arranged in the controller body; the controller body adopts Hall-free PWM square wave control and constant speed control, and obtains a rotor position signal of the motor through a back electromotive force signal of the motor. The brushless motor does not need a Hall sensor, so that the service life and the reliability of the brushless motor are prolonged; the brushless motor controller is mainly applied to a hand-push mower, a 16-bit MCU is adopted, and the software structure conforms to European Union safety certification; the controller body adopts the aluminum shell for heat dissipation, and the whole product is filled with glue, so that the product can work for a long time in any environment; the under-voltage protector, the locked rotor protector and the motor phase line circuit breaking protector which are arranged at the same time can ensure the reliability of the controller and the whole machine;
and is provided with an under-voltage protector, an over-voltage protector, an anti-toppling sensor and a temperature protector; compared with other motor driving circuits, the motor driving circuit has the following advantages;
1. the motor rotating speed automatic switching is realized according to the load, when the load is light, the motor rotating speed is controlled to operate at a low speed, and when the load is heavy, the motor rotating speed is controlled to operate at a high speed.
2. The Hall-free constant speed control is adopted, the EABS flexible electronic brake function is achieved, and the motor is guaranteed to be completely stopped within 2 seconds.
3. The anti-falling protection function is provided, once the inclination angle of the whole machine is detected to exceed 45 +/-10 degrees, the motor is not started or stopped, and the safety of users is ensured.
Preferably, the controller body is provided with a stabilizing plate; the stabilizing plate is in sliding fit with the controller body; a pair of elastic sheets is arranged between the stabilizing plate and the placing shell; a spongy cushion is arranged between the stabilizing plate and the controller body; through at the controller body and place and be equipped with the steadying plate between the casing, can put up the controller body inside placing the casing, reduce and place the casing when acutely rocking, the controller body can with place the problem of casing inside wall striking, the steadying plate passes through the shell fragment frame simultaneously and on placing the casing, can make the steadying plate can swing placing the casing inside, support the controller body, promote the controller body and placing the inside stability of casing, can make the controller body normally swing in the fixing base simultaneously.
Preferably, an air cushion is arranged between the stabilizing plate and the placing shell; an arc-shaped pressing plate is arranged between the stabilizing plate and the stabilizing plate; the arc-shaped pressing plate is arranged on the stabilizing plate through a spring; the other end of the arc-shaped pressing plate is contacted with the air cushion; a plurality of groups of air permeability pipes are communicated with the air cushion; through at the stabilizer plate and placing between the casing be equipped with the air cushion, can be when the controller body is placing inside the rocking of casing, extrude the air cushion repeatedly through the stabilizer plate, make the inside gas of air cushion pass through the permeability cell blowout, place the inside air flow of casing with higher speed, help the work heat dissipation of controller body, further promote the stability of controller body work, the air cushion still can carry out auxiliary stay to the stabilizer plate simultaneously for the stabilizer plate is more stable to the support of controller body.
Preferably, the end part of the vent pipe penetrates through the elastic sheet and extends to the outside of the elastic sheet; the middle part of the vent pipe is fixedly connected with the elastic sheet; fixed through permeability cell and shell fragment middle part, can drive the permeability cell swing when stabilizer plate quilt and shell fragment vibrate, make the jet-propelled scope of permeability cell bigger for place the inside more gas of casing and driven the circulation, further promote the control by temperature change effect of controller body.
Preferably, the side wall of the placing shell is provided with a breathable dustproof net; a swinging plate is arranged in the placing shell at a position corresponding to the breathable dustproof net; elastic ropes b are connected between the two ends of the swinging plate and the inner side wall of the placing shell; a plurality of groups of dredging brush rod bodies are fixedly connected to one side of the swinging plate close to the breathable dust screen; the diameter of the dredging brush rod body is smaller than the aperture of the breathable dust screen; the length of the dredging brush rod body is larger than the thickness of the ventilating dustproof net; the end part of the dredging brush rod body penetrates through the breathable dustproof net and extends to the other side of the breathable dustproof net; the breathable dustproof net is arranged on the side wall of the placing shell, so that the gas inside the placing shell and the gas outside the placing shell can exchange and circulate, the controller body can better dissipate heat, meanwhile, a swinging plate supported by an elastic rope b is arranged on one side of the breathable dustproof net, so that in the process of placing the shell to vibrate, the oscillating plate vibrates at one side of the air-permeable dustproof net, and the dredging brush rod body can reciprocate in the air-permeable dustproof net, the breathable dustproof net is dredged, the breathability of the breathable dustproof net is kept, so that the gas in the placing shell can exchange heat with the gas outside the placing shell smoothly, meanwhile, the swinging plate which shakes can accelerate the gas flow speed near the air-permeable dustproof net, so that the gas near the air-permeable dustproof net is circulated at an accelerated speed, and the problem that the air-permeable dustproof net is blocked is further reduced.
Preferably, a magnet a is fixedly connected to the side wall of the fixed seat; the side wall of the swinging plate is fixedly connected with a magnet b; the magnet a and the magnet b are mutually exclusive; through being equipped with magnet b on the swing board, can make fixing base magnet a promote magnet b and shake the sensation of movement when rocking for the swing range of swing board in ventilative dust screen department is bigger, makes the pull throughs of swing board accessible mediation brush body of rod to ventilative dust screen, reduces the problem that ventilative dust screen can be blockked up.
Preferably, a plurality of groups of swinging balls are arranged on the side wall of the placing shell; an elastic rope c is connected between the swinging ball and the placing shell; the swing ball is arranged on one side of the breathable dustproof net; through being equipped with the pendulum ball near ventilative dust screen, can make magnet b promote by magnet a and rock the time, the pendulum ball also can take place the swing, then beats ventilative dust screen for the impurity on ventilative dust screen surface is trembled to scatter and knocks off, has further guaranteed the gas permeability of ventilative dust screen.
Preferably, a ventilation cavity is formed in the dredging brush rod body; a plurality of groups of air outlet holes are formed in the dredging brush rod body; the air outlet is connected between the ventilation cavity and the side wall of the dredging brush rod body; through dredging the inside chamber of ventilating that is equipped with of the brush body of rod, can make gaseous from ventilating intracavity portion and flow through, then spout from the gas outlet department for ventilative dust screen's air permeability can be kept, reduces because of the mediation brush body of rod stretches into the ventilative dust screen air permeability that leads to inside and reduces too much problem at ventilative dust screen.
Preferably, the end part of the dredging brush rod body is provided with a flexible protection pad; an elastic supporting leg is arranged between the flexible protection pad and the dredging brush rod body; one end of the elastic supporting leg is connected to the flexible protection pad, and the other end of the elastic supporting leg is connected to the side wall of the dredging brush rod body; a gap is reserved between the flexible protection pad and the end part of the dredging brush rod body; be equipped with flexible protection pad through mediation brush rod body tip, can protect mediation brush rod body tip for the port department in chamber of ventilating is difficult for having dust impurity and grass bits and directly drops, keeps the air permeability in chamber of ventilating.
The utility model has the following beneficial effects:
1. according to the brushless motor controller for the hand-push type mower, the controller body is hung in the placing shell through the elastic rope a, when the placing shell vibrates, vibration of the controller body can be dissipated at the elastic rope a, the influence of the vibration on the controller body is reduced, and the controller body can be kept in a good working state in long-time use.
2. According to the brushless motor controller for the hand-push mower, the magnet b is arranged on the swinging plate, so that the magnet a can push the magnet b to swing dynamically when the fixing seat shakes, the swinging amplitude of the swinging plate at the position of the breathable dust screen is larger, the swinging plate can dredge the breathable dust screen more stably through dredging the hairbrush rod body, and the problem that the breathable dust screen is blocked is solved.
Drawings
The utility model will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is an enlarged view of a portion of FIG. 2 at B;
FIG. 5 is a drawing of a dredging brush rod body;
in the figure: 1. placing the shell; 11. a fixed seat; 12. a controller body; 13. an elastic cord a; 2. a stabilizing plate; 21. a spring plate; 22. a sponge cushion; 3. an air cushion; 31. a gas permeable pipe; 32. an arc-shaped pressing plate; 4. a breathable dust screen; 5. a swing plate; 51. an elastic cord b; 52. dredging the brush rod body; 6. a vent lumen; 61. an air outlet; 7. a flexible pad; 71. an elastic leg; 8. a magnet a; 81. a magnet b; 9. swinging the ball; 91. an elastic cord c.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.
Example one
As shown in fig. 1 to 4, a brushless motor controller for a push mower according to an embodiment of the present invention includes a housing 1; a fixed seat 11 is arranged in the placing shell 1; a controller body 12 is arranged in the fixed seat 11; a plurality of groups of elastic ropes a13 are arranged between the fixed seat 11 and the placing shell 1; one end of the elastic rope a13 is connected with the end part of the fixed seat 11, and the other end is connected with the inner side wall of the placing shell 1; when the controller body 12 is hung in the placing shell 1 through the elastic rope a13, when the placing shell 1 vibrates, vibration of the controller body 12 can be dissipated at the elastic rope a13, so that influence of vibration on the controller body 12 is reduced, and the controller body 12 can be kept in a good working state after long-term use.
An under-voltage protector, a locked rotor protector and a motor phase line circuit breaker are arranged in the controller body 12; an under-voltage protector, an over-voltage protector, an anti-toppling sensor and a temperature protector are arranged in the controller body 12; the controller body 12 adopts Hall-free PWM square wave control and constant speed control, and obtains a rotor position signal of the motor through a back electromotive force signal of the motor. The brushless motor does not need a Hall sensor, so that the service life and the reliability of the brushless motor are prolonged; the brushless motor controller is mainly applied to a hand-push mower, a 16-bit MCU is adopted, and the software structure conforms to European Union safety certification; the controller body 12 adopts an aluminum shell for heat dissipation, and the whole product is filled with glue, so that the product can work for a long time in any environment; the under-voltage protector, the locked rotor protector and the motor phase line circuit breaking protector which are arranged at the same time can ensure the reliability of the controller and the whole machine;
and is provided with an under-voltage protector, an over-voltage protector, an anti-toppling sensor and a temperature protector; compared with other motor driving circuits, the motor driving circuit has the following advantages
1. The automatic switching of the motor rotating speed is realized according to the load, when the load is light, the motor rotating speed is controlled to run at a low speed, and when the load is heavy, the motor rotating speed is controlled to run at a high speed; .
2. The Hall-free constant speed control is adopted, the EABS flexible electronic brake function is achieved, and the motor is guaranteed to be completely stopped within 2 seconds.
3. The anti-falling protection function is provided, once the inclination angle of the whole machine is detected to exceed 45 +/-10 degrees, the motor is not started or stopped, and the safety of users is ensured.
The controller body 12 is provided with a stabilizing plate 2; the stabilizing plate 2 is in sliding fit with the controller body 12; a pair of elastic sheets 21 is arranged between the stabilizing plate 2 and the placing shell 1; a spongy cushion 22 is arranged between the stabilizing plate 2 and the controller body 12; through being equipped with stabilizer plate 2 between controller body 12 and placing casing 1, can put up controller body 12 inside placing casing 1, reduce and place casing 1 when acutely rocking, controller body 12 can with place the problem of 1 inside wall striking of casing, stabilizer plate 2 puts up on placing casing 1 through shell fragment 21 simultaneously, can make stabilizer plate 2 can swing placing casing 1 inside, support controller body 12, promote controller body 12 and placing the inside stability of casing 1, can make controller body 12 normally swing in fixing base 11 inside simultaneously.
An air cushion 3 is arranged between the stabilizing plate 2 and the placing shell 1; an arc-shaped pressing plate 32 is arranged between the stabilizing plate 2 and the stabilizing plate; the arc-shaped pressing plate 32 is arranged on the stabilizing plate 2 through a spring; the other end of the arc-shaped pressing plate 32 is contacted with the air cushion 3; a plurality of groups of ventilation pipes 31 are communicated with the air cushion 3; through at stabilizer plate 2 and place and be equipped with air cushion 3 between the casing 1, can be when controller body 12 is placing casing 1 inside and is rocking, extrude air cushion 3 repeatedly through stabilizer plate 2, make the inside gas of air cushion 3 pass through permeability cell 31 blowout, place the inside air flow of casing 1 with higher speed, help the work heat dissipation of controller body 12, further promote the stability of controller body 12 work, air cushion 3 still can carry out the auxiliary stay to stabilizer plate 2 simultaneously, make stabilizer plate 2 more stable to the support of controller body 12.
The end part of the vent pipe 31 penetrates through the elastic sheet 21 and extends to the outside of the elastic sheet 21; the middle part of the vent pipe 31 is fixedly connected with the elastic sheet 21; fixed through permeability cell 31 and shell fragment 21 middle part, can drive permeability cell 31 swing when stabilizer plate 2 is vibrated with shell fragment 21, make the gas-jetted scope of permeability cell 31 bigger for place more gas of 1 inside of casing and driven the circulation, further promote the temperature control effect of controller body 12.
The side wall of the placing shell 1 is provided with a breathable dustproof net 4; a swinging plate 5 is arranged in the placing shell 1 at a position corresponding to the ventilating dustproof net 4; an elastic rope b51 is connected between the two ends of the swing plate 5 and the inner side wall of the placing shell 1; a plurality of groups of dredging brush rod bodies 52 are fixedly connected to one side of the swinging plate 5 close to the breathable dust screen 4; the diameter of the dredging brush rod body 52 is smaller than the aperture of the breathable dustproof net 4; the length of the dredging brush rod body 52 is larger than the thickness of the breathable dust screen 4; the end part of the dredging brush rod body 52 penetrates through the air-permeable dust-proof net 4 and extends to the other side of the air-permeable dust-proof net 4; the side wall of the placing shell 1 is provided with the breathable dustproof net 4, so that the gas inside the placing shell 1 can exchange and circulate with the gas outside the placing shell 1, the controller body 12 can radiate heat better, meanwhile, one side of the breathable dustproof net 4 is provided with the swinging plate 5 supported by the elastic rope b51, the swinging plate 5 can vibrate at one side of the breathable dustproof net 4 in the vibration process of the placing shell 1, the brush rod body 52 which is dredged can reciprocate in the breathable dustproof net 4 to dredge the breathable dustproof net 4, the breathability of the breathable dustproof net 4 is maintained, so that the gas inside the placing shell 1 can exchange heat with the gas outside the placing shell 1 more smoothly, meanwhile, the swinging plate 5 which is shaken can accelerate the gas flow speed near the breathable dustproof net 4, and the gas near the breathable dustproof net 4 can circulate rapidly, further reducing the problem that the air-permeable dust screen 4 will be blocked.
A magnet a8 is fixedly connected to the side wall of the fixed seat 11; a magnet b81 is fixedly connected to the side wall of the swinging plate 5; the magnet a8 and the magnet b81 are mutually exclusive; through being equipped with magnet b81 on swing plate 5, can make fixing base 11 magnet a8 promote magnet b81 and shake dynamic when rocking for swing plate 5 is bigger at the swing range of ventilative dust screen 4 department, makes swing plate 5 accessible mediation brush body of rod 52 carry out more stable mediation to ventilative dust screen 4, reduces the problem that ventilative dust screen 4 can be blockked up.
A plurality of groups of swinging balls 9 are arranged on the side wall of the placing shell 1; an elastic rope c91 is connected between the swinging ball 9 and the placing shell 1; the swinging ball 9 is arranged on one side of the breathable dustproof net 4; through being equipped with swing ball 9 near ventilative dust screen 4, can make magnet b81 promote by magnet a8 when rocking, swing ball 9 also can take place the swing, then beats ventilative dust screen 4 for the impurity on ventilative dust screen 4 surface is shaken loose and is knocked off, has further guaranteed the gas permeability of ventilative dust screen 4.
Example two
As shown in fig. 5, a first comparative example, in which another embodiment of the present invention is: a ventilation cavity 6 is formed in the dredging brush rod body 52; a plurality of groups of air outlet holes 61 are formed in the dredging brush rod body 52; the air outlet 61 is connected between the ventilation cavity 6 and the side wall of the dredging brush rod body 52; through dredging the inside chamber 6 that ventilates that is equipped with of brush body of rod 52, can make gaseous from ventilating the inside flow through of chamber 6, then spout from venthole 61 for ventilative dust screen 4's air permeability can be kept, reduces because of dredging that brush body of rod 52 stretches into the ventilative dust screen 4 air permeability that leads to inside and reduce too much problem.
The end part of the dredging brush rod body 52 is provided with a flexible protection pad 7; an elastic supporting leg 71 is arranged between the flexible protection pad 7 and the dredging brush rod body 52; one end of the elastic supporting leg 71 is connected to the flexible protection pad 7, and the other end is connected to the side wall of the dredging brush rod body 52; a gap is reserved between the flexible protection pad 7 and the end part of the dredging brush rod body 52; be equipped with flexible protection pad 7 through mediation brush body of rod 52 tip, can protect mediation brush body of rod 52 tip for the port department of chamber 6 of ventilating is difficult for having dust impurity and grass bits and directly drops, keeps the air permeability of chamber 6 of ventilating.
When the mower is used, the placing shell 1 is arranged on the mower and is close to the motor, then the mower can be normally started to weed, the placing shell 1 in the controller body 12 is arranged in a hanging mode, when the mower works and the motor vibrates, the vibration effect can be conducted to the controller body 12 through the placing shell 1, the fixed seat 11 and the elastic rope a13, however, the controller body 12 is hung in the placing shell 1 through the elastic rope a13, when the placing shell 1 vibrates, the vibration received by the controller body 12 can be dissipated at the elastic rope a13, the influence of the vibration on the controller body 12 is reduced, the controller body 12 can be erected in the placing shell 1 by arranging the stabilizing plate 2 between the controller body 12 and the placing shell 1, the problem that the controller body 12 can collide with the inner side wall of the placing shell 1 when the placing shell 1 shakes severely is reduced, meanwhile, the stabilizing plate 2 is erected on the placing shell 1 through the elastic sheet 21, so that the stabilizing plate 2 can swing inside the placing shell 1 to support the controller body 12, the stability of the controller body 12 inside the placing shell 1 is improved, and the controller body 12 can normally swing inside the fixing seat 11. Through at stabilizer plate 2 and place and be equipped with air cushion 3 between the casing 1, can be when controller body 12 is placing casing 1 inside and is rocking, extrude air cushion 3 repeatedly through stabilizer plate 2, make the inside gas of air cushion 3 pass through permeability cell 31 blowout, place the inside air flow of casing 1 with higher speed, help the work heat dissipation of controller body 12, further promote the stability of controller body 12 work, air cushion 3 still can carry out the auxiliary stay to stabilizer plate 2 simultaneously, make stabilizer plate 2 more stable to the support of controller body 12.
Fixed through permeability cell 31 and shell fragment 21 middle part, can drive permeability cell 31 swing when stabilizer plate 2 is vibrated with shell fragment 21, make the gas-jetted scope of permeability cell 31 bigger for place more gas of 1 inside of casing and driven the circulation, further promote the temperature control effect of controller body 12. The side wall of the placing shell 1 is provided with the breathable dustproof net 4, so that the gas inside the placing shell 1 can exchange and circulate with the gas outside the placing shell 1, the controller body 12 can radiate heat better, meanwhile, one side of the breathable dustproof net 4 is provided with the swinging plate 5 supported by the elastic rope b51, the swinging plate 5 can vibrate at one side of the breathable dustproof net 4 in the vibration process of the placing shell 1, the brush rod body 52 which is dredged can reciprocate in the breathable dustproof net 4 to dredge the breathable dustproof net 4, the breathability of the breathable dustproof net 4 is maintained, so that the gas inside the placing shell 1 can exchange heat with the gas outside the placing shell 1 more smoothly, meanwhile, the swinging plate 5 which is shaken can accelerate the gas flow speed near the breathable dustproof net 4, and the gas near the breathable dustproof net 4 can circulate rapidly, further reducing the problem that the air-permeable dust screen 4 will be blocked.
Through dredging the inside chamber 6 that ventilates that is equipped with of brush body of rod 52, can make gaseous from ventilating the inside flow through of chamber 6, then spout from venthole 61 for ventilative dust screen 4's air permeability can be kept, reduces because of dredging that brush body of rod 52 stretches into the ventilative dust screen 4 air permeability that leads to inside and reduce too much problem. Be equipped with flexible protection pad 7 through mediation brush body of rod 52 tip, can protect mediation brush body of rod 52 tip for the port department of chamber 6 of ventilating is difficult for having dust impurity and grass bits and directly drops, keeps the air permeability of chamber 6 of ventilating.
Through being equipped with magnet b81 on swing plate 5, can make fixing base 11 magnet a8 promote magnet b81 and shake dynamic when rocking for swing plate 5 is bigger at the swing range of ventilative dust screen 4 department, makes swing plate 5 accessible mediation brush body of rod 52 carry out more stable mediation to ventilative dust screen 4, reduces the problem that ventilative dust screen 4 can be blockked up.
Through being equipped with swing ball 9 near ventilative dust screen 4, can make magnet b81 promote by magnet a8 when rocking, swing ball 9 also can take place the swing, then beats ventilative dust screen 4 for the impurity on ventilative dust screen 4 surface is shaken loose and is knocked off, has further guaranteed the gas permeability of ventilative dust screen 4.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a brushless motor controller for hand propelled lawn mower which characterized in that: comprises a placing shell (1); a fixed seat (11) is arranged in the placing shell (1); a controller body (12) is arranged in the fixed seat (11); a plurality of groups of elastic ropes a (13) are arranged between the fixed seat (11) and the placing shell (1); one end of the elastic rope a (13) is connected with the end of the fixed seat (11), and the other end of the elastic rope a is connected with the inner side wall of the placing shell (1).
2. The brushless motor controller for the push type mower according to claim 1, wherein: an under-voltage protector, a locked rotor protector and a motor phase line circuit breaker are arranged in the controller body (12); an under-voltage protector, an over-voltage protector, an anti-toppling sensor and a temperature protector are arranged inside the controller body (12).
3. The brushless motor controller for the push type mower according to claim 1, wherein: the controller body (12) is provided with a stabilizing plate (2); the stabilizing plate (2) is in sliding fit with the controller body (12); a pair of elastic sheets (21) is arranged between the stabilizing plate (2) and the placing shell (1); a spongy cushion (22) is arranged between the stabilizing plate (2) and the controller body (12).
4. The brushless motor controller for the hand-push type mower according to claim 3, wherein: an air cushion (3) is arranged between the stabilizing plate (2) and the placing shell (1); an arc-shaped pressing plate (32) is arranged between the stabilizing plate (2) and the stabilizing plate; the arc-shaped pressing plate (32) is arranged on the stabilizing plate (2) through a spring; the other end of the arc-shaped pressing plate (32) is contacted with the air cushion (3); the air cushion (3) is communicated with a plurality of groups of ventilation pipes (31).
5. The brushless motor controller for the hand-push type mower according to claim 4, wherein: the end part of the vent pipe (31) penetrates through the elastic sheet (21) and extends to the outside of the elastic sheet (21); the middle part of the vent pipe (31) is fixedly connected with the elastic sheet (21).
6. The brushless motor controller for the push type mower according to claim 1, wherein: the side wall of the placing shell (1) is provided with a breathable dustproof net (4); a swinging plate (5) is arranged in the placing shell (1) at a position corresponding to the ventilating dust-proof net (4); elastic ropes b (51) are connected between the two ends of the swinging plate (5) and the inner side wall of the placing shell (1); a plurality of groups of dredging brush rod bodies (52) are fixedly connected to one side of the swinging plate (5) close to the breathable dust-proof net (4); the diameter of the dredging brush rod body (52) is smaller than the aperture of the ventilating dust screen (4); the length of the dredging brush rod body (52) is larger than the thickness of the ventilating dust screen (4); the end part of the dredging brush rod body (52) penetrates through the breathable dustproof net (4) and extends to the other side of the breathable dustproof net (4).
7. The brushless motor controller for the hand-push type mower according to claim 6, wherein: a ventilation cavity (6) is formed in the dredging brush rod body (52); a plurality of groups of air outlet holes (61) are formed in the dredging brush rod body (52); the air outlet hole (61) is connected between the ventilation cavity (6) and the side wall of the dredging brush rod body (52).
8. The brushless motor controller for the hand-push type mower according to claim 6, wherein: a flexible protection pad (7) is arranged at the end part of the dredging brush rod body (52); an elastic supporting leg (71) is arranged between the flexible protection pad (7) and the dredging brush rod body (52); one end of the elastic supporting leg (71) is connected to the flexible protection pad (7), and the other end of the elastic supporting leg is connected to the side wall of the dredging brush rod body (52); a gap is reserved between the flexible protection pad (7) and the end part of the dredging brush rod body (52).
9. The brushless motor controller for the push mower according to claim 8, wherein: a magnet a (8) is fixedly connected to the side wall of the fixed seat (11); a magnet b (81) is fixedly connected to the side wall of the swinging plate (5); the magnet a (8) and the magnet b (81) are mutually exclusive.
10. The brushless motor controller for the push mower according to claim 9, wherein: a plurality of groups of swinging balls (9) are arranged on the side wall of the placing shell (1); an elastic rope c (91) is connected between the swinging ball (9) and the placing shell (1); the swing ball (9) is arranged on one side of the breathable dustproof net (4).
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| CN202111439325.6A CN114143997B (en) | 2021-11-30 | 2021-11-30 | Brushless motor controller for hand-push mower |
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| CN202111439325.6A CN114143997B (en) | 2021-11-30 | 2021-11-30 | Brushless motor controller for hand-push mower |
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| CN114143997B (en) | 2023-04-07 |
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