CN2894034Y - DC frequency conversion brushless torque motor - Google Patents
DC frequency conversion brushless torque motor Download PDFInfo
- Publication number
- CN2894034Y CN2894034Y CN 200620008888 CN200620008888U CN2894034Y CN 2894034 Y CN2894034 Y CN 2894034Y CN 200620008888 CN200620008888 CN 200620008888 CN 200620008888 U CN200620008888 U CN 200620008888U CN 2894034 Y CN2894034 Y CN 2894034Y
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- motor
- frequency conversion
- phase
- torque motor
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- Expired - Fee Related
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- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model relates to a brushless DC Torque frequency motor mainly applied to electric vehicles, wherein a stator comprises a department of salt tablets stacked silicon steel group. A silicon steel punching is provided with 9 heart-shaped grooves, or straight grooves spaced in circumference evenly, which are the motor winding wire slots and covered with the magnetic circles fixed on the magnetic circle bracket. The rotor is constructed by the motor winding wire slots and the motor cover connected by the spindle bearing. The magnetic circles comprise 10 motor covers and the magnetic steel circularly and evenly arranged in N-S-N-S style, which therefore generate 5 pairs of magnetic fields. The corresponding motor tri-phase winding comprises 9 groups of coils, which are set within 9 winding wires slots in the style of every two adjacent groups overlapping partly according to the arranging sequence and connection sequence. The element hall controlled by electromagnetic is provided every three slots, with the phase angle of 240 degree. When electrified, the spindle is fixed, while the rotor rotates. The utility model has the advantages of high rotating speed, high efficiency, low material consumption etc.
Description
Technical field
The utility model relates to motor, is mainly used in the DC frequency conversion brushless torque motor of motor vehicle.
Background technology
Chinese patent ZL03229449.2 electric vehicle brushless motor is the same with other brushless electric machine, has advantages such as simple in structure, dependable performance, is widely used in motor vehicle.But there is following defective in they: can't realize running up, its angular speed must not be greater than 1500 ° of per seconds, when promptly not using greater than 2500 °; Be confined to low speed, the motor torque pulsation is little, so stator is radial and axial oversize, the cost height, and consumptive material is big, influences the motor vehicle lightness; Can't overcome the big problem of no-load current, because the motor vehicle rotating speed exceeds motor rotating speed allowable, control system and rotating speed are asynchronous, exist than mistake, and counter electromotive force of motor is big, and efficient is relatively low.
Summary of the invention
In order to overcome the defective of prior art, the utility model provides DC frequency conversion brushless torque motor, and this device is realized high efficiency, small size, purpose cheaply when solving a rotating speed limitation difficult problem.
The utility model realizes that the technical scheme of above-mentioned purpose is: its middle part is provided with motor stator, and stator is made of with electric machine main shaft the folded group of silicon steel punching, and the folded group of described silicon steel punching is provided with 9 and is circumferentially uniform heart-shaped groove, and this heart groove is the electric machine winding groove; Be with magnetosphere outward, magnetosphere is fixed on the magnetosphere support, and the magnetosphere support constitutes motor rotor part by electric machine main shaft and left and right sides end cap bearing, and described magnetosphere is formed by 10 slices watts of shapes and according to the magnet steel of N-S-N-S mode circumference uniform distribution, constitutes 5 pairs of magnetic fields; Motor three-phase winding coil is 9 groups of coils and according to putting in order and the order of connection, and per two groups of adjacent both sides are overlapped to be placed in 9 winding slots of the folded group of silicon steel punching; 3 of electromagnetic control Hall element quantity are installed on the edge, groove position of the folded group of silicon steel sheet winding coil output with 120 ° of angles respectively.
The utility model operation principle and beneficial effect are: motor three phase windings, DC power supply with sinusoidal wave three-phase pulse input, promotes rotor and stator relative motion because of inhaling mutually or repelling each other through Hall and the frequency conversion of mainboard control system, when stator is fixed, rotor forward or counter-rotating.Change the multiple-grooved number and be few groove number, change multipole few utmost point that is, the increase torque fluctuation improves galvanomagnetic effect, improves electric efficiency greatly.Especially creatively design 240 ° in phase angle, breaking through control system and high rotating speed is that high frequency exists an error difficult problem, effectively reduces no-load current.Because Conversion of energy is that speed is kinetic energy, so high-speed electric expreess locomotive unit power consumptive material is few, reaches energy-conservation purpose.Through strict test, 180～500W no-load current, 0.2～0.3A, rated speed is 3000r/min; Rotating speed is at 5000～10000r/min, and no-load current is 0.8A.Be suitable for the range of speeds 500～10000r/min, overall efficiency reaches more than 96.8%, thereby improves the brushless electric machine performance comprehensively.The utility model can be widely used in motor vehicle, comprises electric automobile etc.
Description of drawings
Fig. 1 looks the longitudinal profile structural representation for the utility model DC frequency conversion brushless torque motor master;
Fig. 2 is the utility model DC frequency conversion brushless torque motor cross-sectional view corresponding with A-A;
Fig. 3 is the utility model DC frequency conversion brushless torque motor magnet steel schematic diagram.
In Fig. 1,2,3:
1--magnetosphere support 2--motor stator
The right electric motor end cap 4--of 3--electric machine main shaft
The right main shaft bearing 6--of 5--magnet steel
7--left side electric motor end cap 8--electric machine main shaft fairlead
The right main shaft bearing 10--of 9--winding coil
Heart-shaped groove (or winding slot) 12--of 11--Hall
Embodiment
The utility model discloses a kind of motor that relates to, be mainly used in the DC frequency conversion brushless torque motor of motor vehicle, its middle part is provided with motor stator 2, stator 2 is made of with electric machine main shaft 4 the folded group of silicon steel punching, the folded group of described silicon steel punching is provided with 9 and is circumferentially uniform heart-shaped groove 11, and this heart groove is the electric machine winding groove; Be with magnetosphere outward, magnetosphere is fixed on the magnetosphere support 1, the magnetosphere support passes through right main shaft bearing 5 of motor and left main shaft bearing 9 and right electric motor end cap 3, left electric motor end cap 7 and constitutes motor rotor parts, described magnetosphere is formed by 10 slices watts of shapes and according to the magnet steel 6 of N-S-N-S mode circumference uniform distribution, constitutes 5 pairs of magnetic fields; Motor three-phase winding coil 10 is 9 groups of coils and according to putting in order and the order of connection, and per two groups of adjacent both sides are overlapped to be placed on 11 li of 9 winding slots of the folded group of silicon steel punching; Electromagnetic control Hall element 12 quantity are 3, are installed on the edge, groove position of winding coil output of the folded group of silicon steel sheet or input with 120 ° of angles respectively.
Heart-shaped groove 11 can be a straight trough.
3 groups of coils of motor three-phase winding coil 10 every phases, direction of winding be first group reverse, second group is forward, the 3rd group reverse; First group of top of every phase is for drawing or incoming line, and every phase the 3rd group end joins, and constitutes the three-phase closed circuit.
Electromagnetic control Hall element 12 can be located between folded group of silicon steel sheet and the left main shaft bearing 9 on the packing ring, and the position is corresponding with three phase winding tops, and angle is 120 °; Can establish magnet steel (or soft magnetism) in addition on left electric motor end cap 7 bearing positions, the relative magnet steel of magnet steel size 6 is scaled, and arrangement, position and quantity are corresponding with magnet steel 6, and the magnet steel that other establishes can be located at Hall 12 outsides, forms magnetic control system system each other.
The orientation is left and right, suitable, contrary be facility for text description, will wherein arbitrarily oppositely not influence the enforcement of this patent.
Claims (9)
1, DC frequency conversion brushless torque motor, its middle part is provided with motor stator, and stator is made of folded group of silicon steel punching and electric machine main shaft; Overcoat magnetosphere, magnetosphere are fixed on the magnetosphere support, and the magnetosphere support constitutes motor rotor part by electric machine main shaft bearing and left and right sides electric motor end cap; Motor three phase windings, coil are on stator, and corresponding electromagnetic control Hall element is evenly distributed on stator rim, forms the three phase mains input system, it is characterized in that described three phase windings, and phase angle is 240 °.
2, DC frequency conversion brushless torque motor as claimed in claim 1 is characterized in that the folded group of described silicon steel punching is provided with 9 and is circumferentially uniform heart-shaped groove or straight trough, and this heart groove or straight trough are the winding slot of motor windings.
3, DC frequency conversion brushless torque motor as claimed in claim 1 is characterized in that described magnetosphere forms by 10 slices watts of shapes and by the magnet steel of N-S-N-S mode circumference uniform distribution, constitutes 5 pairs of magnetic fields.
4, DC frequency conversion brushless torque motor as claimed in claim 1 is characterized in that described motor three phase windings are 9 groups of coils and according to putting in order and the order of connection, and per two groups of adjacent both sides are overlapped to be placed in 9 winding slots of the folded group of silicon steel punching.
5, DC frequency conversion brushless torque motor as claimed in claim 1 is characterized in that electromagnetic control Hall element quantity is 3, is installed on the edge, 3 lead lead-out groove positions of winding coil with 120 ° of angles respectively.
6, DC frequency conversion brushless torque motor as claimed in claim 1 or 2, the external diameter that it is characterized in that described silicon steel punching are 60～300 millimeters, and folded group thickness is 15～200 millimeters.
7, DC frequency conversion brushless torque motor as claimed in claim 1 is characterized in that wide C15～100 millimeter of described magnet steel, thick A2.5～5 millimeter, arc length B15～90 millimeter.
8, DC frequency conversion brushless torque motor as claimed in claim 1 is characterized in that power line, electromagnetic control Hall element lead enter or draw by the electric machine main shaft fairlead.
9, DC frequency conversion brushless torque motor as claimed in claim 1 is characterized in that three phase windings, three groups of coils of every phase, and direction of winding is: first group is reverse, and second group is forward, and the 3rd group is reverse; First group of top of every phase is in order to draw or output line, and every phase the 3rd group end joins, and constitutes the three-phase closed circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620008888 CN2894034Y (en) | 2006-03-24 | 2006-03-24 | DC frequency conversion brushless torque motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620008888 CN2894034Y (en) | 2006-03-24 | 2006-03-24 | DC frequency conversion brushless torque motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2894034Y true CN2894034Y (en) | 2007-04-25 |
Family
ID=38062185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620008888 Expired - Fee Related CN2894034Y (en) | 2006-03-24 | 2006-03-24 | DC frequency conversion brushless torque motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2894034Y (en) |
-
2006
- 2006-03-24 CN CN 200620008888 patent/CN2894034Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070425 |