CN203813607U - Direct current micromotor - Google Patents
Direct current micromotor Download PDFInfo
- Publication number
- CN203813607U CN203813607U CN201420186416.2U CN201420186416U CN203813607U CN 203813607 U CN203813607 U CN 203813607U CN 201420186416 U CN201420186416 U CN 201420186416U CN 203813607 U CN203813607 U CN 203813607U
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- CN
- China
- Prior art keywords
- casing
- fixed
- circuit board
- direct current
- emc circuit
- 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 - Lifetime
Links
- 239000002184 metal Substances 0.000 claims abstract description 30
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 18
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 8
- 244000185238 Lophostemon confertus Species 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a direct current micromotor. The direct current micromotor comprises a casing, a rotor, a magnetic tile, a plastic support, a carbon brush, a first bearing, an EMC circuit board, a metal cover plate and a power supply connecting piece. A shaft hole is arranged at the front end of the casing, and the tail end is openmouthed. The magnetic tile is fixed on the inner wall of the casing and encloses the rotor. The front end of the core shaft of the rotor goes through the shaft hole of the casing, and the rear end is fixed in the first bearing. The plastic support is arranged inside the tail end of the casing. The first bearing is fixed on the plastic support or on the metal cover plate. The carbon brush is fixed on the plastic support or at the end of the EMC circuit board and supplies power for the rotor. The EMC circuit board is fixed on the plastic support. The metal cover plate is fixed at the opening end of the casing. The grounding end of the EMC circuit board is connected with the metal cover plate or the casing. The power supply connecting piece is electrically connected with the carbon brush through the EMC circuit board. The electromagnetic compatibility of the direct current micromotor reaches three grades or more than three grades of CISPR25 and the requirements of usage on a high-grade automobile are met.
Description
Technical field
The utility model relates to a kind of direct current micromotor.
Background technology
Long-time driving, easily there is strain in driver's waist, the comfort level that impact is driven, therefore some high-grade automobiles considerations are installed massage machine at the waist of the seat of operator seat, and this massage machine need to be used a kind of direct current micromotor.But the EMC(Electro Magnetic Compatibility of high-grade automobile to this direct current micromotor, Electromagnetic Compatibility) requirement very high, need to reach three grades or the three grades of above requirements of CISPR25, and existing motor does not also reach such requirement.
Utility model content
The purpose of this utility model is to provide a kind of direct current micromotor, meets high EMC requirement required while use on high-grade automobile.
The technical scheme that realizes the utility model object is: a kind of direct current micromotor, comprises casing, rotor, magnetic shoe, plastic stent, carbon brush, clutch shaft bearing, EMC circuit board, metal cover board and supply electrical connector; Described casing front end arranges axis hole, and tail end is uncovered; Described magnetic shoe is fixed on the inwall of casing, and surrounds rotor; The front end of the mandrel of described rotor is through the axis hole of casing, and rear end is fixed in clutch shaft bearing; Described plastic stent is arranged on the tail end inside of casing; Described clutch shaft bearing is fixed on plastic stent or on metal cover board; Described carbon brush is fixed on the front end of plastic stent or EMC circuit board and is rotor power supply; Described EMC circuit board is fixed on plastic stent; Described metal cover board is fixed on the opening end of casing; The earth terminal of described EMC circuit board is connected with metal cover board or casing; The described electrical connector that supplies is electrically connected with carbon brush by EMC circuit board.
Described carbon brush is fixed on plastic stent or EMC circuit board by elastic arm or spring.
Described carbon brush is fixed on plastic stent or EMC circuit board by brush box and torsion spring.
Described EMC circuit board is provided with at least two earth terminals and is connected with metal cover board or casing.
Described is connecting line or metal terminal for electrical connector.
On the outer wall of described casing, be fixed with and protect magnetosphere.
Described clutch shaft bearing is fixed on plastic stent by trim ring, or by being fixed in the groove of metal cover board.
A kind of direct current micromotor, also comprises that axle is subject to plate and stainless steel gasket; Described axle is arranged between the bottom and plastic stent of rotor by plate; Described stainless steel gasket is arranged on axle and is subject between plate and plastic stent.
A kind of direct current micromotor, also comprises the crash roll being arranged between EMC circuit board and metal cover board.
A kind of direct current micromotor, also comprises the second bearing of the front end inside that is fixed on casing; The front end of the mandrel of described rotor is by the second bearing supporting.
Adopt technique scheme, the utlity model has following beneficial effect: (1) the utility model is built-in EMC circuit board in the casing of motor, and make the direct ground connection of EMC circuit board by metal cover board or casing, prove through test, this structure can make Electro Magnetic Compatibility of the present utility model reach the more than three grades or three grades of CISPR25, meets the requirement using on high-grade automobile.
(2) EMC circuit board of the present utility model is provided with at least two earth terminals and is connected with metal cover board or casing, and this structure not only can ensure that the earth terminal of EMC circuit board can quiet earth, can also improve the filtering performance of EMC circuit board.
(3) on the outer wall of casing of the present utility model, arrange and protect magnetosphere, this structure can further promote Electro Magnetic Compatibility of the present utility model.
(4) between EMC circuit board of the present utility model and metal cover board, be provided with crash roll, crash roll can be protected EMC circuit board, reduces noise simultaneously.
(5) between rotor of the present utility model and plastic stent, be provided with axle and be subject to plate and stainless steel gasket, can effectively prevent that rotor shifting from making plastic stent distortion, effectively increases the service life.
(6) front end of the mandrel of rotor of the present utility model is by the second bearing supporting, and this structure can reduce the friction of rotor mandrel.
Brief description of the drawings
For content of the present utility model is more easily expressly understood, according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
Label in accompanying drawing is:
Casing 1, protect magnetosphere 1-1, rotor 2, mandrel 2-1, magnetic shoe 3, plastic stent 4, carbon brush 5, clutch shaft bearing 6, trim ring 7, axle and be subject to plate 8, EMC circuit board 9, metal cover board 10, stainless steel gasket 11, connecting line 12, crash roll 13, the second bearing 14.
Embodiment
(embodiment 1)
See Fig. 1 and Fig. 2, the direct current micromotor of the present embodiment, comprises that casing 1, rotor 2, magnetic shoe 3, plastic stent 4, carbon brush 5, clutch shaft bearing 6, trim ring 7, axle are subject to plate 8, EMC circuit board 9, metal cover board 10, stainless steel gasket 11, supply electrical connector, crash roll 13 and the second bearing 14.
Casing 1 front end arranges axis hole, and tail end is uncovered.On the outer wall of casing 1, be fixed with and protect magnetosphere 1-1.Magnetic shoe 3 is fixed on the inwall of casing 1, and surrounds rotor 2.The front end of the mandrel 2-1 of rotor 2 is through the axis hole of casing 1, and rear end is fixed in clutch shaft bearing 6.Plastic stent 4 is arranged on the tail end inside of casing 1.Clutch shaft bearing 6 is fixed on plastic stent 4 by trim ring 7, or is fixed in the groove of metal cover board 10.Carbon brush 5 is fixed on the front end of plastic stent 4 or EMC circuit board and is powered for rotor 2 by elastic arm or spring or carbon box and torsion spring.Axle is arranged between the bottom and plastic stent 4 of rotor 2 by plate 8, and stainless steel gasket 11 is arranged on axle and is subject between plate 8 and plastic stent 4.EMC circuit board 9 is fixed on plastic stent 4.Metal cover board 10 is fixed on the opening end of casing 1.The earth terminal of EMC circuit board 9 is connected with metal cover board 10 or casing 1, and the earth terminal of EMC circuit board 9 is provided with at least two.Be electrically connected with carbon brush 5 by EMC circuit board 9 for electrical connector.Be connecting line 12 or metal terminal for electrical connector.Crash roll 13 is arranged between EMC circuit board 9 and metal cover board 10.The second bearing 14 is fixed on the front end inside of casing 1.The front end of the mandrel 2-1 of rotor 2 supports by the second bearing 14.
The direct current micromotor of the present embodiment is applicable to the direct current machine that external diameter is less than 30mm, is mainly used on equipment that the EMC Requirements such as high-grade automobile are higher.Prove after tested, Electro Magnetic Compatibility reaches the more than three grades or three grades of CISPR25, meets the requirement using on high-grade automobile.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (10)
1. a direct current micromotor, is characterized in that: comprise casing (1), rotor (2), magnetic shoe (3), plastic stent (4), carbon brush (5), clutch shaft bearing (6), EMC circuit board (9), metal cover board (10) and supply electrical connector; Described casing (1) front end arranges axis hole, and tail end is uncovered; Described magnetic shoe (3) is fixed on the inwall of casing (1), and surrounds rotor (2); The front end of the mandrel (2-1) of described rotor (2) is through the axis hole of casing (1), and rear end is fixed in clutch shaft bearing (6); Described plastic stent (4) is arranged on the tail end inside of casing (1); Described clutch shaft bearing (6) is fixed on plastic stent (4) or on metal cover board (10); Described carbon brush (5) is fixed on the front end of plastic stent (4) or EMC circuit board (9) and is rotor (2) power supply; Described EMC circuit board (9) is fixed on plastic stent (4); Described metal cover board (10) is fixed on the opening end of casing (1); The earth terminal of described EMC circuit board (9) is connected with metal cover board (10) or casing (1); The described electrical connector that supplies is electrically connected with carbon brush (5) by EMC circuit board (9).
2. a kind of direct current micromotor according to claim 1, is characterized in that: described carbon brush (5) is fixed on plastic stent (4) or EMC circuit board (9) by elastic arm or spring.
3. a kind of direct current micromotor according to claim 1, is characterized in that: described carbon brush (5) is fixed on plastic stent (4) or EMC circuit board (9) by brush box and torsion spring.
4. a kind of direct current micromotor according to claim 1, is characterized in that: described EMC circuit board (9) is provided with at least two earth terminals and is connected with metal cover board (10) or casing (1).
5. a kind of direct current micromotor according to claim 1, is characterized in that: described is connecting line (12) or metal terminal for electrical connector.
6. a kind of direct current micromotor according to claim 1, is characterized in that: on the outer wall of described casing (1), be fixed with and protect magnetosphere (1-1).
7. a kind of direct current micromotor according to claim 1, is characterized in that: it is upper that described clutch shaft bearing (6) is fixed on plastic stent (4) by trim ring (7), or be fixed on by fitted component in the groove of metal cover board (10).
8. a kind of direct current micromotor according to claim 1, is characterized in that: also comprise that axle is subject to plate (8) and stainless steel gasket (11); Described axle is arranged between the bottom and plastic stent (4) of rotor (2) by plate (8); Described stainless steel gasket (11) is arranged on axle and is subject between plate (8) and plastic stent (4).
9. a kind of direct current micromotor according to claim 1, is characterized in that: also comprise the crash roll (13) being arranged between EMC circuit board (9) and metal cover board (10).
10. a kind of direct current micromotor according to claim 1, is characterized in that: the second bearing (14) that also comprises the front end inside that is fixed on casing (1); The front end of the mandrel (2-1) of described rotor (2) is by the second bearing (14) supporting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420186416.2U CN203813607U (en) | 2014-04-16 | 2014-04-16 | Direct current micromotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420186416.2U CN203813607U (en) | 2014-04-16 | 2014-04-16 | Direct current micromotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203813607U true CN203813607U (en) | 2014-09-03 |
Family
ID=51452307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420186416.2U Expired - Lifetime CN203813607U (en) | 2014-04-16 | 2014-04-16 | Direct current micromotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203813607U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130298A (en) * | 2016-08-26 | 2016-11-16 | 蔡蔚珍 | High life direct current generator |
| CN106160309A (en) * | 2016-08-26 | 2016-11-23 | 蔡蔚珍 | High service life direct current generator |
| CN106415935A (en) * | 2015-11-09 | 2017-02-15 | 捷和电机制品(深圳)有限公司 | Motor and EMC element and/or grounding structure of ESD element |
| CN108496299A (en) * | 2016-04-19 | 2018-09-04 | 株式会社电装 | Brushless motor |
-
2014
- 2014-04-16 CN CN201420186416.2U patent/CN203813607U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106415935A (en) * | 2015-11-09 | 2017-02-15 | 捷和电机制品(深圳)有限公司 | Motor and EMC element and/or grounding structure of ESD element |
| WO2017079869A1 (en) * | 2015-11-09 | 2017-05-18 | 捷和电机制品(深圳)有限公司 | Motor and ground structure for electro-magnetic compatibility element and/or electro-static discharge element thereof |
| KR20170066312A (en) * | 2015-11-09 | 2017-06-14 | 씨씨엘 매뉴팩츄어링 (센젠) 리미티드 | Motor and ground structure of emc element and/or esd element thereof |
| JP2018500862A (en) * | 2015-11-09 | 2018-01-11 | 捷和電机制品（深▲せん▼）有限公司Ｃｃｌ Ｍａｎｕｆａｃｔｕｒｉｎｇ（Ｓｈｅｎｚｈｅｎ） Ｌｉｍｉｔｅｄ | Grounding structure of motor and its EMC element and / or ESD element |
| CN106415935B (en) * | 2015-11-09 | 2020-02-14 | 捷和电机制品(深圳)有限公司 | Motor and grounding structure of EMC component and/or ESD component thereof |
| US10644572B2 (en) | 2015-11-09 | 2020-05-05 | CCL Manufacturing (Shenzhen) Limited | Motor and ground structure of EMC element and/or ESD element thereof |
| CN108496299A (en) * | 2016-04-19 | 2018-09-04 | 株式会社电装 | Brushless motor |
| US11088599B2 (en) | 2016-04-19 | 2021-08-10 | Denso Corporation | Brushless motor |
| CN106130298A (en) * | 2016-08-26 | 2016-11-16 | 蔡蔚珍 | High life direct current generator |
| CN106160309A (en) * | 2016-08-26 | 2016-11-23 | 蔡蔚珍 | High service life direct current generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |