CN102280951A - Driving device - Google Patents
Driving device Download PDFInfo
- Publication number
- CN102280951A CN102280951A CN2010101955806A CN201010195580A CN102280951A CN 102280951 A CN102280951 A CN 102280951A CN 2010101955806 A CN2010101955806 A CN 2010101955806A CN 201010195580 A CN201010195580 A CN 201010195580A CN 102280951 A CN102280951 A CN 102280951A
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- magnetic
- conductive part
- drive unit
- magnetic conductive
- rotor
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Abstract
The invention relates to a driving device which is provided with a stator, wherein the stator is provided with a magnetic conducting element made of a magnetic conducting material; the magnetic conducting material is an annular enclosed body; the inner side edge of the magnetic conducting element, which faces to the center of the magnetic conducting element, is provided with a plurality of main magnetic parts in an extending way at intervals; a coil group is sleeved on each main magnetic part; a rotor is arranged at the tail end of each main magnetic part; air gaps are formed between the peripheries of the rotors and all the main magnetic conducting parts at intervals, so that the magnetic force generated by the stator can be directly and magnetically connected to the rotors so as to prevent overlarge magnetic loss from generating, and therefore the cost of the driving device can be reduced, and the whole volume of the driving device can be reduced.
Description
Technical field
The present invention relates to a kind of drive unit, particularly a kind of being used in drives the drive unit that gauge pointer rotates.
Background technology
Drive the drive unit that gauge pointer rotates, formed, yet present stator utilizes mostly coil is set on the magnetic conductive part in the mode that stator drives rotor, and, make its terminal magnetic be connected to rotor by the extension of magnetic conductive part two ends, to drive rotor rotation, yet this kind practice is for having following disappearance:
(1) in order to dwindle the volume of drive unit, its coil is with shape setting side by side, and the magnetic conductive part two ends are connected to rotor with bending extension mode magnetic, and therefore, coil is when being assembled to magnetic conductive part, and the magnetic conductive part that is subjected to the magnetic conductive part bending limits and difficult assembling.
(2) because the magnetic conductive part end is connected to rotor to extend mode magnetic, when the magnetic force that coil is produced conducts to the magnetic conductive part end, the diffusing leakage of magnetic force is very high, therefore magnetic conductive part must use the material of high magnetic capacity made, just can make the terminal magnetic force that produces of magnetic conductive part be enough to drive rotor rotation, and the material price of high magnetic capacity is very high, therefore cost is greatly risen, if to increase the coil winding number of turns, strengthen the magnetic force of magnetic conductive part end, volume is increased.
Be with, how to solve above-mentioned known problem and disappearance, be the problem of being engaged in research and development that this relevant dealer desires most ardently.
Summary of the invention
Main purpose of the present invention is, the direct magnetic of magnetic force that utilizes stator to produce is connected to rotor, produces to avoid excessive magnetic loss, can reducing the cost of drive unit, and can dwindle the drive unit overall volume.
For reaching above-mentioned purpose, a kind of drive unit of the present invention, being used to drive gauge pointer rotates, this drive unit is provided with stator and rotor, wherein: this stator is provided with the made magnetic conductive part of magnetic conductive material, magnetic conductive part is the ring seal body, and the magnetic conductive part medial margin is extended with a plurality of main magnetic portion at interval towards the magnetic conductive part center, and is arranged with coil groups in each main magnetic portion; This rotor ring-type is arranged with a plurality of magnetic regions, and the magnetic pole of adjacent magnetic region is opposite, and rotor is positioned at the end of each main magnetic portion, and the main magnetic of rotor peripheries and each portion produces air gap at interval, and rectifying for rotor peripheries of each coil groups.
Beneficial effect of the present invention is: main magnetic portion is extended towards the magnetic conductive part center by the magnetic conductive part inner edge and forms, and coil groups is sheathed in the main magnetic portion, when therefore main magnetic portion is subjected to the coil groups induction by current and goes out magnetic force, magnetic force can directly pass the magnetic region that air gap magnetic switches through son, so the magnetic force of main magnetic portion is when magnetic connects the magnetic region, suitable low of the magnetic loss that produces, and then can consider down at cost, use the lower material of magnetic capacity to make magnetic conductive part, to reduce cost, and the coil winding number of coil groups also can be relative minimizing, to dwindle the drive unit overall volume.
Description of drawings
Fig. 1 is a stereo appearance figure of the present invention;
Fig. 2 is a top view of the present invention;
Fig. 3 is the three-dimensional exploded view of the local member of the present invention.
Description of reference numerals: 1, stator; 11, magnetic conductive part; 111, lamellar body; 12, main magnetic portion; 13, coil groups; 131, pedestal; 132, coil; 14, secondary magnetic portion; 15, short slot; 2, rotor; 21, magnetic region; 3, air gap.
Embodiment
See also Fig. 1 to shown in Figure 3, find out that by knowing among the figure drive unit of the present invention is provided with stator 1 and rotor 2, wherein:
This stator 1 is provided with the made magnetic conductive part 11 of magnetic conductive material, magnetic conductive material can be silicon steel sheet, magnetic conductive part 11 is a ring seal and by a plurality of lamellar body 111 stacking forming, and magnetic conductive part 11 medial margins are extended with a plurality of main magnetic portion 12 at interval towards magnetic conductive part 11 centers, and magnetic conductive part 11 side between two main magnetic portions 12 is provided with the short slot 15 that forms high resistant magnetic section, the opposite side medial margin is extended with secondary magnetic portion 14 at interval towards magnetic conductive part 11 centers, and is arranged with coil groups 13 in the main magnetic portion 12; Coil groups 13 is provided with the pedestal 131 that is sheathed on main magnetic portion 12 outer rims, and pedestal 131 surfaces are arranged with coil 132.
These rotor 2 circular row are shown a plurality of magnetic regions 21, and the magnetic pole of adjacent magnetic region 21 is opposite, and rotor 2 is positioned at the end of each main magnetic portion 12, and the main magnetic of rotor 2 peripheries and each portion 12 produces air gap 3 at interval, and rectifying for rotor 2 peripheries of each coil groups 13.
From the above mentioned, when coil 132 energising of coil groups 13, each main magnetic portion 12 can induction produce magnetic force, and main magnetic portion 12 terminal magnetic force can pass air gap 3 magnetic and switch through son 2, produce the commentaries on classics distance when the magnetic region 21 of rotor 2 is subjected to this magnetic field, can utilize and change apart from promoting the direction rotation of rotor 2 according to magnetic field.
Moreover this two main magnetic portion 12 forms 120 degree angles, and magnetic region 21 quantity are 2N, and N can be 2,4,5 or 7, and just magnetic region 21 quantity are 4,8,10 or 14.
Be with, the design of stator 1 of the present invention can improve the disappearance of prior art, and the effect that can promote drive unit, its key technology is, main magnetic portion 12 is extended towards magnetic conductive part 11 centers by magnetic conductive part 11 inner edges and forms, and coil groups 13 is sheathed in the main magnetic portion 12, when therefore main magnetic portion 12 is subjected to coil groups 13 inductions by current and goes out magnetic force, magnetic force can directly pass the magnetic region 21 that air gap 3 magnetic switch through son 2, so the magnetic force of main magnetic portion 12 is when magnetic connects magnetic region 21, suitable low of the magnetic loss that produces, and then can consider down at cost, use the lower material of magnetic capacity to make magnetic conductive part 11, to reduce cost, and coil 132 winding numbers of coil groups 13 also can be relative minimizing, to dwindle the drive unit overall volume.
Only the above, only be preferred embodiment of the present invention, when can not limiting scope of the invention process, so the displacement of the change of numerical value or equivalent elements such as with this, or, all should still belong to the category that patent of the present invention contains according to equalization variation and modification that the present patent application claim is done.
Claims (6)
1. a drive unit is used to drive gauge pointer and rotates, and this drive unit is provided with stator and rotor, it is characterized in that:
This stator is provided with the made magnetic conductive part of magnetic conductive material, and magnetic conductive part is the ring seal body, and the magnetic conductive part medial margin is extended with a plurality of main magnetic portion at interval towards the magnetic conductive part center, and is arranged with coil groups in each main magnetic portion;
This rotor ring-type is arranged with a plurality of magnetic regions, and the magnetic pole of adjacent magnetic region is opposite, and rotor is positioned at the end of each main magnetic portion, and the main magnetic of rotor peripheries and each portion produces air gap at interval, and rectifying for rotor peripheries of each coil groups.
2. drive unit as claimed in claim 1 is characterized in that, this magnetic conductive part forms by a plurality of lamellar bodies are stacking.
3. drive unit as claimed in claim 1 is characterized in that, this magnetic conductive material is a silicon steel sheet.
4. drive unit as claimed in claim 1 is characterized in that, this magnetic conductive part medial margin is extended with secondary magnetic portion at interval towards the magnetic conductive part center.
5. drive unit as claimed in claim 1 is characterized in that, this coil groups is provided with the pedestal that is sheathed on main magnetic portion outer rim, and the pedestal surface is arranged with coil.
6. drive unit as claimed in claim 1 is characterized in that, this magnetic conductive part is provided with the short slot that forms high resistant magnetic section between two main magnetic portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101955806A CN102280951A (en) | 2010-06-09 | 2010-06-09 | Driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101955806A CN102280951A (en) | 2010-06-09 | 2010-06-09 | Driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102280951A true CN102280951A (en) | 2011-12-14 |
Family
ID=45106186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101955806A Pending CN102280951A (en) | 2010-06-09 | 2010-06-09 | Driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102280951A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106702657A (en) * | 2016-11-18 | 2017-05-24 | 珠海格力电器股份有限公司 | Drum washing machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1169612A (en) * | 1996-04-15 | 1998-01-07 | 日立金属株式会社 | Permanent magnet field type rotating machine |
| CN1407694A (en) * | 2001-09-06 | 2003-04-02 | 建准电机工业股份有限公司 | Easily-starting brushless D.C. motor |
| CN1691467A (en) * | 2004-04-19 | 2005-11-02 | 台达电子工业股份有限公司 | Motor and structure of its stator and rotor |
| CN1747290A (en) * | 2004-09-08 | 2006-03-15 | 有限会社金星研究所 | Motor and devive using this |
-
2010
- 2010-06-09 CN CN2010101955806A patent/CN102280951A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1169612A (en) * | 1996-04-15 | 1998-01-07 | 日立金属株式会社 | Permanent magnet field type rotating machine |
| CN1407694A (en) * | 2001-09-06 | 2003-04-02 | 建准电机工业股份有限公司 | Easily-starting brushless D.C. motor |
| CN1691467A (en) * | 2004-04-19 | 2005-11-02 | 台达电子工业股份有限公司 | Motor and structure of its stator and rotor |
| CN1747290A (en) * | 2004-09-08 | 2006-03-15 | 有限会社金星研究所 | Motor and devive using this |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106702657A (en) * | 2016-11-18 | 2017-05-24 | 珠海格力电器股份有限公司 | Drum washing machine |
| CN106702657B (en) * | 2016-11-18 | 2023-07-14 | 珠海格力电器股份有限公司 | Drum washing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111214 |