CN205123533U - A disconnect -type brushless motor for high -power electric circular saw - Google Patents
A disconnect -type brushless motor for high -power electric circular saw Download PDFInfo
- Publication number
- CN205123533U CN205123533U CN201520310695.3U CN201520310695U CN205123533U CN 205123533 U CN205123533 U CN 205123533U CN 201520310695 U CN201520310695 U CN 201520310695U CN 205123533 U CN205123533 U CN 205123533U
- Authority
- CN
- China
- Prior art keywords
- rotor
- casing
- stator
- electric machine
- brushless electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Brushless Motors (AREA)
Abstract
The utility model relates to an electric tool field, a disconnect -type brushless motor for high -power electric circular saw that specifically says so, it includes the casing, is provided with a brushless motor stator in this casing, this stator fit in is equipped with a brushless motor rotor, is provided with the drive outside the casing the rotatory drive module of rotor, this drive module install with the casing in the complex end cover. The utility model discloses a series excitation replacement makes the electric circular saw from there being the brush to move towards brushless, moves towards intelligent control from on -off control, efficiency can improve 30% with, and the life -span is quite a few times traditional series excitation drivens, a whole set of brushless control system is customized based on the current structure of electric circular saw casing, and the intelligent control module is fixed at the casing outsidely, presss from both sides between casing and plastic end cover, motor stator, rotor assembling inside the casing, the dismouting mutually noninterfere.
Description
Technical field
The utility model relates to field of power tools, is a kind of internal brushless electric machine that alternative typical high power electric circular saw has brush series machine specifically.
Background technology
Along with the increasingly serious energy problem in the whole world, the motor product of efficient energy-saving must be subject to each side attention and and the support of national policy, conventional power tool series excitation type of drive efficiency is low, the life-span is short, therefore carries out brushless control in this field and must will become a kind of industrial trend.Electric tool adopts three-phase brushless dc motor and Single-chip Controlling can energy-conservation of consumption reduction more than 30%, and its life-span will be longer.But for large power, electrically annular saw, limit by factors such as structure, control strategy and costs, by integrated with it for brushless technology, form electromechanical integrated product, do not increase again the complexity of structure simultaneously, also there is no corresponding product in the market.
Utility model content
For above-mentioned technical problem, the utility model provides a kind of cost performance high, compact to design, convenient for installation and maintenance, the life-span is long, efficiency is high, torque characteristics better a kind of separate type brushless electric machine for large power, electrically annular saw, it comprises housing, a brushless motor stator is provided with in this housing, coordinate in this stator and be provided with a brushless electric motor rotor, be provided with the driver module driving described rotor to rotate in hull outside, this driver module is arranged on in the end cap coordinated described in housing.
As preferably, described stator comprises the stator silicon steel sheet being laminated into column and the plastic parts being arranged on silicon steel sheet both sides vertically, plastic parts is wound with the line bag be connected with described driver module.
As preferably, described plastic parts one end is provided with back-up ring, and this back-up ring and plastic parts are fastened by fastener.
As preferably, described rotor comprises and is laminated into columned rotor silicon steel sheet, strip magnet steel in the side's of being embedded with on rotor.
As preferably, described in each, rotor silicon steel sheet four limit is by arc transition, centre be provided with fixing magnet steel dovetail groove and for alleviating the opening that rotor deadweight is arranged.
As preferably, described driver module comprises the circuit board being provided with driving chip and the radiator arranging circuit board side, and the three-phase output end of circuit board is connected with stator line bag, and two inlet wires are connected on control switch.
As preferably, described circuit board is fixed on radiator inside by bridge heap with driving chip, and fills with casting glue.
As preferably, the described radiator back side evenly side's of being provided with shape thermal column.
The utility model adopts intelligent driver module to control, and substitutes traditional series machine as follows as its advantage of electric circular saw power using brushless electric machine:
One, non-carbonate, without rotor windings, electric machine structure is simple, can realize motor non-maintaining
Driving is encouraged in two, traditional series connection, produces electric spark all the time in carbon brush and rotor electrical contact work, and be not suitable for using at some Code in Hazardous Special Locations, brushless electric machine does not then have the misgivings of this respect, and fail safe is higher.
Three, brushless electric machine adopts intelligent object to control, and can monitor in real time, fault alarm etc. to the operating state of motor, does not worry burning motor.
Four, brushless intelligent control module, pass through algorithm optimization, less hardware resource is have employed than traditional brushless control strategy, PCB volume is accomplished minimum, structurally by module heat radiator innovative design, with minimum size, the material economized most meets control system cooling requirements, therefore control module cost performance is high, has the good market competitiveness.
Five, a whole set of brushless control system is customized based on electric circular saw housing existing structure, and intelligent control module is fixed on outside, is clipped between housing and plastic end cover; Motor stator, rotor are assemblied in enclosure interior, and dismounting is non-interference.
To sum up, adopt the utility model by series excitation replace make electric circular saw from brushing away to brushless, move towards Based Intelligent Control from switch control rule, efficiency can improve 30% with, and the life-span be traditional series excitation drive several times.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model.
Fig. 2 is the perspective view of stator in the utility model.
Fig. 3 is the perspective view of the utility model rotor.
Fig. 4 is the perspective view of driver module in the utility model.
Embodiment
The separate type brushless electric machine for large power, electrically annular saw is introduced in detail below in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4, it comprises housing 9, a brushless motor stator 4 is provided with in this housing, coordinate in this stator and be provided with a brushless electric motor rotor 5, be provided with the driver module 2 driving described rotor to rotate in hull outside, this driver module is arranged on in the end cap 1 coordinated described in housing; Drive module setting of the present utility model is in hull outside, and motor stator and rotor are fixed on case inside, and both dismounting are non-interference, realizes separate type and installs.
Described stator 4 comprises stacked pillared stator silicon steel sheet 42 and is arranged on the plastic parts 41 of silicon steel sheet both sides vertically, plastic parts is wound with the line bag be connected with described driver module, thus is formed with stator and isolate; Described plastic parts one end is provided with back-up ring 44, and this back-up ring and plastic parts are fastened by fastener; To package protective action to stator line, the foreign material being entered housing cavity by air channel are made to become damage not to line bag.
In the utility model, described rotor 5 comprises and is laminated into columned rotor silicon steel sheet 52, the side's of being embedded with strip magnet steel 51 on rotor, rotor magnetic steel is rare earth permanent-magnetic material neodymium iron boron, described in each, rotor silicon steel sheet four limit is by arc transition, centre be provided with fixing magnet steel dovetail groove and for alleviating rotor deadweight and the opening 53 that arranges, opening is subtriangular; Parts should be assembled in advance at implementation process transfer 5, fan 7, power transmission shaft 8, just coordinate with electric circular saw other parts and assemble, be provided with plastic barrier sheet 6 between fan 7 on power transmission shaft 8 and stator 4, during to make fan work, foreign material do not enter reducing gear by air channel and pollute; After power transmission shaft is seated, rotor is in stator center position.
Described driver module 2 comprises the circuit board 21 being provided with driving chip 3 and the radiator 22 arranging circuit board side, and the three-phase output end of circuit board is connected with stator line bag, and two inlet wires are connected on control switch; Described circuit board is fixed on radiator inside by bridge heap with driving chip, and fills with casting glue; Circuit board adopts high accuracy control algolithm and high-power reliable full-bridge driving chip to carry out alternative traditional bulky capacitor control mode, realizes without electric capacity, controls without Hall; Described circuit board package is inner at radiator, and evenly gather the side's of being provided with shape thermal column at the radiator back side, and area of dissipation is maximized, and its inside circumference and the bottom even densely covered side of being provided with shape groove, which increase the adhesive force of casting glue; Driver module is contained in outside, has the adjacent with power transmission shaft of wiring board, and the back side of band thermal column is towards plastic end cover.In implementation process, the line of circuit board amounts to five, and inlet wire two is connected with control switch, access single phase poaer supply; Outlet three connects with brushless motor stator line bag, is three phase mains.It is electric that switch motion makes driver module obtain, and export three-phase pulse voltage by setpoint frequency, thus produce rotating magnetic field on stator, stator field synchronous axial system together just followed by rotor; Switch resets, and driver module quits work, and rotating magnetic field disappears, rotor stall.
Above-mentioned execution mode is only for illustration of the utility model, and be not to restriction of the present utility model, the those of ordinary skill of relevant technical field, when not departing from the utility model spirit and scope, can also make various change and modification, therefore all equivalent technical schemes also should belong to category of the present utility model.
Claims (7)
1. the separate type brushless electric machine for large power, electrically annular saw, comprise housing, a brushless motor stator is provided with in this housing, coordinate in this stator and be provided with a brushless electric motor rotor, it is characterized in that: be provided with the driver module driving described rotor to rotate in hull outside, this driver module is arranged in the end cap that coordinates with housing, described stator comprises the stator silicon steel sheet being laminated into column and the plastic parts being arranged on silicon steel sheet both sides vertically, plastic parts is wound with the line bag be connected with described driver module.
2. brushless electric machine according to claim 1, is characterized in that: described plastic parts one end is provided with back-up ring, and this back-up ring and plastic parts are fastened by fastener.
3. brushless electric machine according to claim 1, is characterized in that: described rotor comprises and is laminated into columned rotor silicon steel sheet, strip magnet steel in the side's of being embedded with on rotor.
4. brushless electric machine according to claim 3, is characterized in that: described in each, rotor silicon steel sheet four limit is by arc transition, centre be provided with fixing magnet steel dovetail groove and for alleviating the opening that rotor deadweight is arranged.
5. brushless electric machine according to claim 1, it is characterized in that: described driver module comprises the circuit board being provided with driving chip and the radiator arranging circuit board side, the three-phase output end of circuit board is connected with stator line bag, and two inlet wires are connected on control switch.
6. brushless electric machine according to claim 5, is characterized in that: described circuit board is fixed on radiator inside by bridge heap with driving chip, and fills with casting glue.
7. brushless electric machine according to claim 6, is characterized in that: the described radiator back side evenly side's of being provided with shape thermal column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520310695.3U CN205123533U (en) | 2015-05-14 | 2015-05-14 | A disconnect -type brushless motor for high -power electric circular saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520310695.3U CN205123533U (en) | 2015-05-14 | 2015-05-14 | A disconnect -type brushless motor for high -power electric circular saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205123533U true CN205123533U (en) | 2016-03-30 |
Family
ID=55579105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520310695.3U Expired - Fee Related CN205123533U (en) | 2015-05-14 | 2015-05-14 | A disconnect -type brushless motor for high -power electric circular saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205123533U (en) |
-
2015
- 2015-05-14 CN CN201520310695.3U patent/CN205123533U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101214644B (en) | Frequency conversion electric tool | |
| CN101951109A (en) | Direct drive type permanent magnet direct current brushless motor | |
| CN204376659U (en) | Electric motor car birotor fluid-cooled electrical machine | |
| CN201813296U (en) | Direct drive permanent magnet direct circuit (DC) brushless motor | |
| CN102891577B (en) | Switch reluctance motor | |
| CN102315709B (en) | High-power energy-saving motor | |
| CN201386637Y (en) | Full voltage direct current draught fan suitable for stepless speed regulating driving | |
| CN204538932U (en) | A kind of built-in pair of isolated dc brushless electric machine for high-power electric pick | |
| CN201966776U (en) | Permanent magnet DC brushless motor for driving air compressor | |
| CN201146437Y (en) | High-efficiency high-capacity density inner rotor and external rotor hollow motor | |
| CN205123533U (en) | A disconnect -type brushless motor for high -power electric circular saw | |
| CN205051539U (en) | Energy -conserving motor of intelligence | |
| CN208723689U (en) | A kind of threephase asynchronous sound insulation and noise reduction protective cover | |
| CN101630886B (en) | Double-stator and double-rotor welding generator | |
| CN2800638Y (en) | Highly effective DC brushless motor-AC generator | |
| CN201332325Y (en) | Energy-saving negative pressure generating device | |
| CN210349500U (en) | Water-cooling multi-pole integral magnetizing tool | |
| CN215394439U (en) | Angle grinder | |
| CN201781398U (en) | Brushless motor | |
| CN201430486Y (en) | Motor case body | |
| CN104659999A (en) | Built-in double-insulation brushless direct-current motor used for high-power electric breaker | |
| CN105186809A (en) | Intelligent energy-saving motor | |
| CN1649237A (en) | High efficiency DC brushless motor-AC generator | |
| CN104467339A (en) | Linear vibration motor with gravity compensation function | |
| CN111917260A (en) | Special permanent magnet motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20190514 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |