CN201854167U - Permanent magnet synchronous linear motor - Google Patents
Permanent magnet synchronous linear motor Download PDFInfo
- Publication number
- CN201854167U CN201854167U CN2010205410599U CN201020541059U CN201854167U CN 201854167 U CN201854167 U CN 201854167U CN 2010205410599 U CN2010205410599 U CN 2010205410599U CN 201020541059 U CN201020541059 U CN 201020541059U CN 201854167 U CN201854167 U CN 201854167U
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- permanent magnet
- base plate
- synchronous motor
- motor
- elementary
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Abstract
The utility model discloses a permanent magnet synchronous linear motor, which adopts a plurality of permanent magnets with the same size and shape, the cross section of each permanent magnet is shaped like a rectangle with four like chamfers, the permanent magnets are formed into a matrix type permanent magnet array on the surface of a field yoke, moreover, each four neighboring permanent magnets define a counter bore, and through the counter bores, fasteners fix the permanent magnets on a secondary base plate. Compared with the prior art, since the permanent magnet synchronous linear motor adopts the fasteners to fix the permanent magnets on the secondary base plate, the deformation of the motor structure, which is caused by the electromagnetic attraction between a primary and a secondary, can be effectively reduced, and thereby the normal operation of the motor is guaranteed. In addition, as a preference, the permanent magnet synchronous linear motor is also provided with coolers, which have the effects of reducing the temperature of the motor and retarding the temperature of the motor from being transferred to a load via a primary base plate.
Description
Technical field
The utility model relates to the techniques of linear motor field, relates in particular to a kind of permanent magnetic linear synchronous motor.
Background technology
Permanent magnetic linear synchronous motor is because of the advantage with contactless transmission is widely used at a high speed, the accurate advanced equipment of making, for example machine tooling center etc.But, there is electromagnetic attraction between existing permanent magnetic linear synchronous motor elementary and secondary, the electric machine structure easy deformation brings adverse effect for the safe operation of motor.
In addition, the motor windings temperature raises, and can quicken the aging of motor insulation material on the one hand, influences electrical machinery life; On the other hand, motor temperature is passed to load, will influence the precision and the stability of precision equipment.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, a kind of permanent magnetic linear synchronous motor is provided, can effectively reduce the electric machine structure distortion that causes because of electromagnetic attraction between elementary and secondary, a kind of preferred structure of this permanent magnetic linear synchronous motor is provided in addition, this preferred structure is owing to be provided with cooling device, can reduce the temperature of motor simultaneously, and motor temperature raises to the influence of load.
The utility model realizes that the technical scheme that above-mentioned purpose adopted is: a kind of permanent magnetic linear synchronous motor comprises primary and secondary, secondary elementary relatively moving linearly; Wherein, elementary elementary base plate and at least one iron core teeth that is placed on the elementary base plate of comprising twined winding coil on the iron core teeth, and insulation is isolated between the winding coil adjacent one another are; Secondary secondary floor plate, yoke, securing member and the identical permanent magnet of a plurality of size shape of comprising, the cross section of permanent magnet is the rectangle that has four identical chamferings, a plurality of permanent magnets are arranged alternately in yoke surfaces according to N, the S utmost point and form the matrix form permanent magnet array, and four permanent magnets adjacent one another are form a counterbore, and securing member is fixed on permanent magnet on the secondary floor plate by counterbore.
Above-mentioned securing member can be a trip bolt, and correspondingly, the chamfering of the cross section of permanent magnet can be the circular arc chamfering, and the counterbore that trip bolt is formed by the circular arc chamfering is fixed on permanent magnet on the surface of yoke.
As preferably, a kind of permanent magnetic linear synchronous motor of the utility model also is provided with cooling device to reduce motor temperature, guarantees that motor and motor load move safely and reliably.Cooling device comprises motor cooling and accurate cooling, and wherein motor cools off directly cooling winding coil, and accurate cooling is to be delivered to load through the cooled motor temperature of motor by elementary base plate in order to prevent.The specific implementation of cooling device is:
The bottom position of above-mentioned winding coil is provided with first cooling water pipe, and this first cooling water pipe forms heat transfer pathway through thermal grease conduction and winding coil bottom surface, constitutes the motor cooling, the cooling winding coil;
Between the contact-making surface of above-mentioned elementary base plate and iron core teeth second cooling water pipe is set, this second cooling water pipe forms heat transfer pathway by thermal grease conduction and elementary base plate, constitutes accurate cooling, is delivered to load to slow down through the cooled motor temperature of motor through elementary base plate.
Above-mentioned first cooling water pipe is preferably the flat structure, to increase the contact area of first cooling water pipe and winding coil, improves cooling effect.
Above-mentioned second cooling water pipe is preferably the flat structure, to increase the contact area between second cooling water pipe and elementary base plate, improves cooling effect.
Compared with prior art, a kind of permanent magnetic linear synchronous motor of the utility model is fixed on permanent magnet on the secondary floor plate because of adopting securing member, has effectively reduced the electric machine structure distortion that causes with time inter-stage electromagnetic attraction because of elementary, guarantees the motor operate as normal.In addition, as preferably, a kind of permanent magnetic linear synchronous motor of the utility model also is provided with cooling device, has the motor temperature of reduction and slows down motor temperature is delivered to load through elementary base plate effect.
Description of drawings
Fig. 1 is the composition structural representation of the utility model one embodiment;
Fig. 2 is the profile of Fig. 1;
Fig. 3 is the vertical view of sub section among Fig. 1;
Fig. 4 is the cooling device schematic diagram among the utility model embodiment.
Embodiment
Below with reference to drawings and Examples the utility model is described in further detail.
Fig. 1 to Fig. 4 is a kind of structural representation of a kind of permanent magnetic linear synchronous motor of the utility model, and Reference numeral wherein is: elementary 20, winding coil 21, iron core teeth 22, coil rack 23, groove carve 24, elementary base plate 25, first cooling copper tube 26, the second cooling siphunculus 27, first snap joint 30, second snap joint 31, the 3rd snap joint 32, the 4th snap joint 33, secondary 40, permanent magnet 41, chamfering 42, yoke 43, counterbore 44.
As shown in Figure 1, this is implemented a kind of permanent magnetic linear synchronous motor and comprises elementary 20 and secondary 40, secondary 40 elementary relatively 20 moving linearlies.As shown in Figure 2, elementary 20 comprise elementary base plate 25, be placed on a plurality of iron core teeth 22 on the elementary base plate 25 side by side, twining winding coil 21 on the iron core teeth 22, through winding coil skeleton 23 insulation, is constituting and carve 24 by groove behind the complete winding and fix between the winding coil 21 adjacent one another are; The bottom position of winding coil 21 is placed first cooling water pipe, 26, the first cooling water pipes 26 that are made of copper and is formed heat transfer pathway through thermal grease conduction and winding coil 21 bottom surfaces, constitutes the motor cooling, cooling winding coil 21; As shown in Figure 4, second cooling water pipe, 27, the second cooling water pipes 27 that are made of copper are set between the contact-making surface of elementary base plate 25 and iron core teeth 22 are fixed on the elementary base plate 25, form heat transfer pathway with elementary base plate 25 by thermal grease conduction, constitute accurate cooling, slow down the motor intensification and be delivered to load.
As shown in Figure 3, secondary 40 comprise the identical permanent magnet 41 of yoke 43, securing member and a plurality of size shape, the cross section of permanent magnet 41 is the rectangle that has four identical circular chamferings 42, permanent magnet 41 is alternately arranged according to N, the S utmost point, formation matrix form permanent magnet array is bonded on the yoke 43 and forms secondary module, some secondary module spliced connect, and promptly constitute secondary 40 of given stroke.The chamfering 42 of four permanent magnets 41 adjacent one another are forms a counterbore 44, be used to place securing member, securing member in the present embodiment is a trip bolt, trip bolt with secondary fixed on secondary floor plate, thereby reduce secondary 40 to greatest extent because of electromagnetic attraction deforms, guarantee the safe operation of motor.
As shown in Figure 4, coolant enters second cooling water pipe 27 through first snap joint 30, after 25 circulations of the elementary base plate that contacts with load, flows out through second snap joint 31, slows down that the motor feels hot to load transfer, realizes accurate cooling.Cool off the cooling fluid that second snap joint 31 is flowed out from precision, enter first cooling water pipe 26 through the 3rd snap joint 32, the bottom surface of all winding coils 21 of flowing through is back to coolant pump from the 4th snap joint 33, finishes the cooling of winding coil 21.Coolant is generally cooling water or cold oil.
Most preferred embodiment of the present utility model is illustrated, and various variations or the remodeling made by those of ordinary skills can not break away from scope of the present utility model.
Claims (7)
1. permanent magnetic linear synchronous motor, comprise elementary (20) and secondary (40), secondary (40) elementary relatively (20) moving linearly, it is characterized in that: described elementary (20) comprise elementary base plate (25) and are placed at least one iron core teeth (22) on the elementary base plate (25), twining winding coil (21) on the iron core teeth (22), insulation is isolated between the winding coil adjacent one another are (21); Described secondary (40) comprise secondary floor plate, yoke (43), securing member and the identical permanent magnet of a plurality of size shape (41), the cross section of described permanent magnet (41) is the rectangle that has four identical chamferings (42), a plurality of permanent magnets (41) are arranged in yoke (43) surface according to alternating polarity and form the matrix form permanent magnet array, and four permanent magnets (41) adjacent one another are form a counterbore (44), and described securing member is fixed on permanent magnet (41) on the secondary floor plate by counterbore (44).
2. a kind of permanent magnetic linear synchronous motor according to claim 1 is characterized in that: described winding coil (21) bottom is provided with first cooling water pipe (26), and described first cooling water pipe (26) forms heat transfer pathway through thermal grease conduction and winding coil (21) bottom surface.
3. a kind of permanent magnetic linear synchronous motor according to claim 1 and 2, it is characterized in that: between the contact-making surface of described elementary base plate (25) and iron core teeth (22) second cooling water pipe (27) is set, described second cooling water pipe (27) forms heat transfer pathway by thermal grease conduction and elementary base plate (25).
4. a kind of permanent magnetic linear synchronous motor according to claim 1 and 2 is characterized in that: described chamfering (42) is the circular arc chamfering.
5. a kind of permanent magnetic linear synchronous motor according to claim 2 is characterized in that: described first cooling water pipe (26) is the flat structure.
6. a kind of permanent magnetic linear synchronous motor according to claim 3 is characterized in that: described chamfering (42) is the circular arc chamfering.
7. a kind of permanent magnetic linear synchronous motor according to claim 3 is characterized in that: described second cooling water pipe (27) is the flat structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205410599U CN201854167U (en) | 2010-09-21 | 2010-09-21 | Permanent magnet synchronous linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205410599U CN201854167U (en) | 2010-09-21 | 2010-09-21 | Permanent magnet synchronous linear motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201854167U true CN201854167U (en) | 2011-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205410599U Expired - Lifetime CN201854167U (en) | 2010-09-21 | 2010-09-21 | Permanent magnet synchronous linear motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201854167U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951115A (en) * | 2010-09-21 | 2011-01-19 | 中国科学院宁波材料技术与工程研究所 | Permanent magnet linear synchronous motor |
| EP2808986A1 (en) * | 2013-05-27 | 2014-12-03 | Etel S. A.. | Cooling body for a linear motor |
-
2010
- 2010-09-21 CN CN2010205410599U patent/CN201854167U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951115A (en) * | 2010-09-21 | 2011-01-19 | 中国科学院宁波材料技术与工程研究所 | Permanent magnet linear synchronous motor |
| CN101951115B (en) * | 2010-09-21 | 2012-11-28 | 中国科学院宁波材料技术与工程研究所 | Permanent magnet linear synchronous motor |
| EP2808986A1 (en) * | 2013-05-27 | 2014-12-03 | Etel S. A.. | Cooling body for a linear motor |
| WO2014191129A1 (en) * | 2013-05-27 | 2014-12-04 | Etel S.A. | Heat sink for a linear motor |
| US9777972B2 (en) | 2013-05-27 | 2017-10-03 | Etel S.A. | Heat sink for a linear motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110601 |
|
| CX01 | Expiry of patent term |