CN101764447A - Flat DC motor - Google Patents
Flat DC motor Download PDFInfo
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- CN101764447A CN101764447A CN200910109895A CN200910109895A CN101764447A CN 101764447 A CN101764447 A CN 101764447A CN 200910109895 A CN200910109895 A CN 200910109895A CN 200910109895 A CN200910109895 A CN 200910109895A CN 101764447 A CN101764447 A CN 101764447A
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- stator support
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Abstract
The invention discloses a flat DC motor which is composed of a core mechanism, a rotating shaft, and front and back end covers. The core mechanism comprises a stator support (1), silicon steel sheets (2) arranged on the stator support, a coil (3), two rotor pallets (4) arranged respectively at the upper and the lower ends of the stator support, and two groups of permanent magnets (5) respectively arranged on the rotor pallets (4). The rotating shaft (7) penetrates through the middle part of the core mechanism and is supported by two bearings (8) arranged in grooves at two end faces of the stator support (1). The front and the back end covers (6) are fixed on the stator support (1) to form a motor housing, wherein the stator support (1) is made of insulating material. The invention eliminates the eddy current since an alternating magnetic field acts on the stator support when the motor is in operation and improves the motor efficiency greatly.
Description
Technical field
The present invention relates to flat DC motor.
Background technology
Dull and stereotyped direct current machine generally is made of parts such as movement, rotating shaft and housings.In the prior art, stator coil is fixed on the stator bracket that is made of metallic conductor.This structure makes motor in operation process, and the permanent magnet in two rotors produces very big alternating magnetic field vertically in the annular space that the external diameter and the internal diameter of permanent magnet are formed.If stator bracket is made by conductor or semi-conducting material, then motor is in running, and conductor or semi-conducting material can form very big eddy current in inside, rotor is produced extremely strong resistance, make motor power consumption increase greatly.Chinese patent application 02248000.5 discloses a kind of coreless high power density disk type electric machine, its technical scheme that adopts be with disc type stator coil and motor metal shell mutually by and closely connect, thereby increased the thermal capacitance of stator coil greatly and the heat of coil distributed by the motor metal shell that exposes.Evidence, the motor of Zhi Zuoing in this way, though solved heat dissipation problem to a certain extent, but because stator bracket is made with metal material, in motor operation course, the alternating magnetic field that rotor permanent magnet produces vertically forms very big short circuit current in stator bracket inside, thereby causes motor rotation speed low, and power consumption is very big.
Therefore, how reducing the short circuit current that alternating magnetic field produces, reduce motor temperature, is the technical problem that needs to be resolved hurrily in the industry.
Summary of the invention
The objective of the invention is to overcome above-mentioned problems of the prior art, propose a kind of flat DC motor.
For achieving the above object, the technical solution used in the present invention is a kind of flat DC motor of design, and this motor is made up of movement, rotating shaft and front and rear cover.Described movement comprises: stator bracket, be installed in silicon steel sheet on the stator bracket and coil, two be installed in the rotor pallet of stator bracket upper and lower side respectively and be installed in two group permanent-magnets on the rotor pallet respectively; Described rotating shaft is installed in the middle of running through movement, by two bearings that are placed in the stator bracket both ends of the surface groove; Described front and rear cover is fixed on the stator bracket, forms motor housing; Wherein, described stator bracket adopts the insulating material manufacturing, and described rotor pallet is made by ferrous material.
The insulating material of making stator bracket comprises engineering plastics, industrial ceramics or toughened glass.
Compared with prior art, the flat DC motor of the present invention's proposition has the following advantages:
1. because stator bracket has adopted insulating material making (non-conductor, non-semiconductor material), eliminated motor action of alternating magnetic field in service in the eddy current that stator bracket produced, electric efficiency is greatly improved.
2. the rotor pallet adopts ferrous material to make, and has both made things convenient for the location of magnet, makes that again magnetic flux has had the loop between magnet N, the S utmost point.During installation, the groove of magnet directly being put into the rotor pallet gets final product.
3. when making low-power machine, silicon steel sheet can not installed, and stator bracket and coil thickness part be attenuate easily, generally is no more than 12 millimeters.
Description of drawings
Below in conjunction with drawings and Examples the present invention is described in detail, wherein:
Fig. 1 is the installation diagram of one embodiment of the invention;
Fig. 2 is the structural representation of stator component among the present invention;
Fig. 3 is the right cutaway view of stator component;
Fig. 4 is the structural representation of rotor parts of the present invention;
Fig. 5 is the cutaway view of rotor part.
Specific implementation method
Fig. 1 shows a preferred embodiment of the present invention.As shown in Figure 1, the flat DC motor of the present invention's proposition is made up of movement, rotating shaft and front and rear cover.Movement comprises: stator bracket 1, be installed in silicon steel sheet 2 on the stator bracket and coil 3, two be installed in the rotor pallet 4 of stator bracket upper and lower side respectively and be installed in one group of magnet 5 on the rotor pallet respectively.Four bolts 10 of front and rear cover 6 usefulness are fixed on the stator bracket 1.Front and rear cover is provided with the multilayer scallop hole, so that motor radiating.Front and rear cover 6 is formed motor housing with stator bracket 1.One rotating shaft 7 runs through in the middle of the movement installs, and is supported by the bearing 8 in two grooves that are placed in stator bracket 1 both ends of the surface.Two rotors are placed on two end faces of stator, and with two pins 9 rotating shaft and rotor pallet are locked, and making the gap between magnet 5 and the silicon steel sheet 2 is 0.5 millimeter.
The stator of motor is made up of 2,9 coils 3 of 1,9 groups of silicon steel sheets of stator bracket and 3 Hall elements 11 as shown in Figures 2 and 3.On stator bracket 1, be provided with the fixedly scallop hole of silicon steel sheet 2 of the fan-shaped cavity of 9 fixed coils 3 and 9, these fan-shaped cavitys and scallop hole are circle-shaped and are evenly arranged on the stator bracket, and corresponding with the annulus formed of the fan-shaped permanent magnet installed 5 on the rotor pallet.Coil 3 is divided into three groups of A, B, C, and every group of three coils are connected in series, and are placed in the fan-shaped cavity.Silicon steel sheet 2 is placed in the scallop hole, and 3 Hall elements 11 are arranged in respectively between two coils.Each terminal of organizing coil links to each other, and forms a common port; Top respectively with external drive circuit UNICOM, the input of hall sensor 11, the external control electronic circuit of output line are with the control circuit commutation.Drive circuit and Hall control electronic circuit are known circuit, do not repeat them here.At the center of stator bracket 1, both ends of the surface are respectively arranged with the groove that bearing 8 is installed.
As shown in Figure 4 and Figure 5, rotor is made of rotor pallet 4 and permanent magnet 5.Rotor pallet 4 usefulness iron quality metal materials are made, and have both made things convenient for the location of permanent magnet 5, can make again between the N, the S utmost point of permanent magnet 5 and form flux circuit.Rotor pallet 4 is oblate shape, and it is provided with the annular groove of fixed sectors permanent magnet 5.12 fan-shaped permanent magnets are arranged in this embodiment, alternately in the groove of rotor pallet 4.
Stator bracket 1 among the present invention adopts insulating material, as plastics, nylon, engineering ceramics or toughened glass manufacturing.Because stator bracket is made by insulating material (non-conductor or non-semiconductor material), then motor is in running, the alternating magnetic field that rotor permanent magnet produces vertically is very little at the eddy current that stator interior forms, and the resistance that rotor is produced reduces, and makes motor power consumption reduce greatly.In experimentation, test with materials such as ABS, MC, nylon, TP engineering plastics, Merlon respectively, compare with the stator bracket of conductor or semi-conducting material manufacturing, under the situation of other term harmonization, designed motor running speed of the present invention becomes several times to improve, and power consumption also is much smaller.
Following table is the stator bracket that insulating material and non-insulating material are done, in empty load of motor data contrast of surveying in service.As can be seen, the stator bracket of making of insulating material can make the rotating speed of motor increase substantially from correction data, and performance obviously is better than adopting metal to make the motor of stator bracket.
| The stator bracket material | Rotating speed/minute | Voltage | Electric current |
| Stainless steel | 152 change | ??48v | ??3.A |
| The stator bracket material | Rotating speed/minute | Voltage | Electric current |
| Aluminium | 148 change | ??48v | ??3A |
| Nylon | 1235 change | ??48v | ??0.64A |
| Merlon | 1225 change | ??48v | ??0.59A |
| ??ABS | 1231 change | ??48v | ??0.62 |
| ??MC | 1229 change | ??48v | ??0.61 |
| Industrial ceramics | 1241 change | ??48v | ??0.65A |
| Toughened glass | 1280 change | ??48v | ??0.68A |
In experimentation of the present invention, when motor moves, with any one metal material, as: stainless steel, copper, iron, aluminium, magnesium are placed on stator bracket position (up and down in the annular space that the magnet in two rotors is formed vertically), metal material is under the effect of alternating magnetic field, and temperature can be elevated to hot very soon.
When making low-power machine, on the stator bracket silicon steel sheet can be installed, stator bracket and coil thickness part be attenuate easily, generally is no more than 12 millimeters.
Experiment showed, that the present invention is the flat DC motor of a kind of efficient, energy-conservation, easy assembling, easy care.
Claims (4)
1. flat DC motor, be made up of movement, rotating shaft and front and rear cover, described movement comprises: stator bracket (1), be installed in silicon steel sheet (2) on the stator bracket and coil (3), two be installed in the rotor pallet (4) of stator bracket upper and lower side respectively, be installed in a group permanent-magnet (5) on the rotor pallet respectively; Described rotating shaft (7) is installed in the middle of running through movement, is supported by two bearings (8) that are placed in stator bracket (1) the both ends of the surface groove; Described front and rear cover (6) is fixed on the stator bracket (1), forms motor housing; It is characterized in that: described stator bracket (1) adopts the insulating material manufacturing.
2. flat DC motor according to claim 1 is characterized in that: the insulating material of described manufacturing stator bracket (1) comprises engineering plastics, industrial ceramics or toughened glass.
3. flat DC motor according to claim 2 is characterized in that: the insulating material of described manufacturing stator bracket (1) is ABS, MC, nylon, polycarbonate or TP engineering plastics.
4. flat DC motor according to claim 1 is characterized in that: described rotor pallet (4) is by the iron quality metal material manufacturing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910109895A CN101764447A (en) | 2009-11-27 | 2009-11-27 | Flat DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910109895A CN101764447A (en) | 2009-11-27 | 2009-11-27 | Flat DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101764447A true CN101764447A (en) | 2010-06-30 |
Family
ID=42495473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910109895A Pending CN101764447A (en) | 2009-11-27 | 2009-11-27 | Flat DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101764447A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593969A (en) * | 2012-03-01 | 2012-07-18 | 中山市艾克动力电机科技有限公司 | Non-rare earth magnet motor |
| CN102624106A (en) * | 2011-01-27 | 2012-08-01 | 深圳飞能能源有限公司 | Disk type motor stator and radiating method thereof |
| CN102624173A (en) * | 2011-01-27 | 2012-08-01 | 深圳飞能能源有限公司 | Stator disc of permanent magnet disc motor |
| CN102857048A (en) * | 2012-08-14 | 2013-01-02 | 常州蓝晶科技有限公司 | Silicon electrode framework of motor stator |
| CN102857047A (en) * | 2012-08-14 | 2013-01-02 | 常州蓝晶科技有限公司 | Manufacturing method of shell of motor stator |
| CN103225714A (en) * | 2013-04-07 | 2013-07-31 | 陕西申瑞电化器材科技有限公司 | High-voltage anti-eddy cable clamp |
| CN108512365A (en) * | 2018-04-18 | 2018-09-07 | 上海马陆日用友捷汽车电气有限公司 | A kind of dc motor |
-
2009
- 2009-11-27 CN CN200910109895A patent/CN101764447A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624106A (en) * | 2011-01-27 | 2012-08-01 | 深圳飞能能源有限公司 | Disk type motor stator and radiating method thereof |
| CN102624173A (en) * | 2011-01-27 | 2012-08-01 | 深圳飞能能源有限公司 | Stator disc of permanent magnet disc motor |
| CN102624106B (en) * | 2011-01-27 | 2014-03-19 | 深圳飞能能源有限公司 | Disk type motor stator and radiating method thereof |
| CN102593969A (en) * | 2012-03-01 | 2012-07-18 | 中山市艾克动力电机科技有限公司 | Non-rare earth magnet motor |
| CN102857048A (en) * | 2012-08-14 | 2013-01-02 | 常州蓝晶科技有限公司 | Silicon electrode framework of motor stator |
| CN102857047A (en) * | 2012-08-14 | 2013-01-02 | 常州蓝晶科技有限公司 | Manufacturing method of shell of motor stator |
| CN102857048B (en) * | 2012-08-14 | 2014-09-17 | 常州蓝晶科技有限公司 | Silicon electrode framework of motor stator |
| CN102857047B (en) * | 2012-08-14 | 2015-05-20 | 常州蓝晶科技有限公司 | Manufacturing method of shell of motor stator |
| CN103225714A (en) * | 2013-04-07 | 2013-07-31 | 陕西申瑞电化器材科技有限公司 | High-voltage anti-eddy cable clamp |
| CN103225714B (en) * | 2013-04-07 | 2016-05-04 | 陕西申瑞电化器材科技有限公司 | The anti-eddy current cable cleat of high pressure |
| CN108512365A (en) * | 2018-04-18 | 2018-09-07 | 上海马陆日用友捷汽车电气有限公司 | A kind of dc motor |
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Application publication date: 20100630 |