CN201260097Y - Fan motor with stator winding improved and brushless heat radiating fan - Google Patents
Fan motor with stator winding improved and brushless heat radiating fan Download PDFInfo
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- CN201260097Y CN201260097Y CNU2008201464200U CN200820146420U CN201260097Y CN 201260097 Y CN201260097 Y CN 201260097Y CN U2008201464200 U CNU2008201464200 U CN U2008201464200U CN 200820146420 U CN200820146420 U CN 200820146420U CN 201260097 Y CN201260097 Y CN 201260097Y
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Abstract
The utility model discloses a fan motor of an improved stator winding, and a stator comprises a plurality of magnetic poles and coils in an equal number wound on each magnetic pole by a single wire, coils on at least two magnetic poles are taken as one group, adjacent two coils in each coil group are connected in series in opposite winding directions, a plurality of groups of coils are connected in parallel, and values of the wire diameter and number of turns of each coil suit the fan rotation speed to be achieved. The utility model also discloses a brushless radiator fan employing the fan motor in the meanwhile. The utility model has advantages of high winding efficiency of stator coils of the fan motor, wire drawing and breaking prevention, low requirements on winding machines, and low production costs of products.
Description
Technical field
The utility model relates to motor, is specifically related to the brushless radiator fan of a kind of fan motor and this fan motor of employing.
Background technology
The nowadays extensive use of electronic equipment, improving constantly of electrical performance, the thing followed is that the heat energy that electronic equipment produces also improves constantly, if properly do not control these heat energy, light then will influence the usefulness of electronic equipment, heavy then can burn electronic equipment, so need carry out forced cooling to electronic equipment.In the electronic equipment, because of considering production cost and heat radiation function, general normal use fan is as the heat radiation instrument now.Radiator fan mainly is made up of fan frame, hub portion, flabellum and motor, and wherein motor comprises stationary part and rotor portion, and its stationary part mainly is made up of stator coil and silicon steel sheet.Fan propeller generally all is to adopt single-phase driving in order to reach higher rotating speed and better efficient, and promptly rotor has only one group of coil, and coil has only line and a buttock line.
At monocoil driving rotor winding, the motor stator coil of prior art adopt the single line list around or two-wire and around realizing.As depicted in figs. 1 and 2, so-called single line list around mode, promptly begin to wind the line with the utmost point of single line from silicon steel sheet, if first positive direction very, then second coiling very in the other direction, and second utmost point and first is extremely adjacent, and the rest may be inferred, successively around the magnetic pole of adjacent silicon steel sheet and direction of winding one positive anti-phase.The main feature of this mode is: single enamelled wire, its line footpath is little, is easy to coiling.
For the rotating speed that promotes fan has two kinds of approach: the one, strengthen the line footpath, if strengthen the line footpath of single line, make line footpath chap, and the line footpath is thick excessively, and when surpassing the coiling specification of coil winding machine, coil winding machine can't wind the line, then need to change coil winding machine, thereby increased production cost; The 2nd, two-wire and around, so-called two-wire and around mode, be meant with two enamelled wires and come coiling as an enamelled wire together.The mode of coiling with the single line list around, begin coiling from the utmost point of silicon steel sheet, if the first very positive direction coiling, with first extremely adjacent second utmost point then be in the other direction, the rest may be inferred, and successively around the magnetic pole of adjacent silicon steel sheet, and the direction of coiling is one positive one anti-phase interval.
The main feature of this mode is: two-wire and around, promoted the rotating speed of fan, solved because single line line footpath is thick excessively, and the problem that coil winding machine can't be wound the line.But adopt two enamelled wires and around mode, very easily hanging wire, hinder line, thereby reduce the useful life of motor.
Summary of the invention
Main purpose of the present utility model solves the problems of the prior art exactly, and a kind of fan motor that improves stator winding is provided, and its stator coil can directly be realized high rotating speed with little line, and be easy to coiling, production cost is low.
Another purpose of the present utility model is to solve the problems of the prior art, and a kind of fan that adopts this fan motor is provided.
For achieving the above object, the utility model is by the following technical solutions:
A kind of fan motor that improves stator winding, described stator comprises a plurality of magnetic poles and is wound on the coil of the equal number on each magnetic pole with single line, it is characterized in that, with the coil at least 2 magnetic poles is one group, each is organized interior loop and is connected in series in adjacent the two the opposite mode of coiling direction, many group coils from parallel connection of coils connect, and the line footpath of described coil adapts with the rotation speed of the fan that will reach with the value of the number of turns.
Preferably:
Described magnetic pole is 4, and 2 coils on adjacent 2 magnetic poles are one group and are connected in series that 2 groups of coils from parallel connection of coils connect.
Described magnetic pole is 9, and 3 coils on 3 of adjacency magnetic poles are one group and are connected in series successively, and 3 groups of coils from parallel connection of coils connect.
A kind of brushless radiator fan, the stator and the rotor that comprise fan motor, described stator comprises a plurality of magnetic poles and is wound on the coil of the equal number on each magnetic pole with single line, it is characterized in that, with the coil at least 2 magnetic poles is one group, each is organized interior loop and is connected in series in adjacent the two the opposite mode of coiling direction, organizes coils from parallel connection of coils more and connects, and the line footpath of described coil adapts with the rotation speed of the fan that will reach with the value of the number of turns.
Preferably:
Described magnetic pole is 4, and 2 coils on adjacent 2 magnetic poles are one group and are connected in series that 2 groups of coils from parallel connection of coils connect.
Described magnetic pole is 9, and 3 coils on 3 of adjacency magnetic poles are one group and are connected in series successively, and 3 groups of coils from parallel connection of coils connect.
The utility model beneficial technical effects is:
Fan motor stator of the present utility model comprises a plurality of magnetic poles and is wound on the coil of the equal number on each magnetic pole with single line, with the coil at least 2 magnetic poles is one group, each is organized interior loop and is connected in series in adjacent the two the opposite mode of coiling direction, many group coils from parallel connection of coils connect, the line footpath of coil adapts with the rotation speed of the fan that will reach with the value of the number of turns, because coil groups is divided into a plurality of of parallel connection, coil can be with the single enamelled wire coiling in little line footpath like this, suitably improve the coiling number of turns of each coil simultaneously, with the be connected in parallel resistance of winding under the mode of raising, just can guarantee the high rotating speed of fan, preferably the single group coil with prior art changes into two groups of coils from parallel connection of coils of the present utility model, because half that total resistance of coil in parallel is a single group coil, constant in order to reach total resistance, just must be increased to original twice to the resistance of two groups of coils of parallel connection, so just can be identical after the parallel connection with the single group coil resistance, and resistance will strengthen twice, will use the thinner more number of turns of enamelled wire coiling.The rest may be inferred in the coiling in parallel of more groups of coils.The utility model is the same convenient around scheme with existing single line list, the winding efficiency height, can avoid the footpath coiling of big line, two-wire and around the time be easy to generate hanging wire, hinder line, to coil winding machine require low, thereby reduced production cost.
Description of drawings
The known motor stator coil of Fig. 1 connection diagram;
The stationary part cross sectional plan view of the known fan motor of Fig. 2;
The stator coil connection diagram of a kind of embodiment of Fig. 3 the utility model;
The motor stator cut-away section vertical view of a kind of embodiment of Fig. 4 the utility model.
Feature of the present utility model and advantage will further specify in conjunction with the accompanying drawings by embodiment.
Major label description in figure:
1, stator 2, enamelled wire 201, enamelled wire one end
202, the enamelled wire other end 3, coil 4, coil
5, reserve section 6, contact 7, contact
8, first utmost point 9, second utmost point 10, the 3rd utmost point
11, the 4th utmost point
Embodiment
As shown in Figure 3 and Figure 4, the fan motor stator 1 of present embodiment comprises 4 silicon steel sheet magnetic poles, is respectively first utmost point 8, second utmost point 9, the 3rd utmost point 10 and the 4th utmost point 11 successively.The coil of stator 1 is by single enamelled wire 2 coiled on four magnetic poles, stator coil in the present embodiment is one group with the coil on 2 magnetic poles, particularly, with 2 coils on first utmost point 8 and second utmost point 9 is one group, with 2 coils on the 3rd utmost point 10 and the 4th utmost point 11 is another group, 2 coil winding directions in each group are opposite and be connected in series, and two groups of coils from parallel connection of coils connect.For example, begin coiling from first utmost point 8 of silicon steel sheet, if first utmost point 8 is to wind the line with positive direction, then adjacent with first utmost point 8 magnetic pole second utmost point 9 is with opposite direction coiling 3, the 3rd utmost point 10 is another to magnetic pole adjacent with second utmost point 9 in the magnetic pole, to 10 coilings of the 3rd utmost point time, earlier at second utmost point 9 and the 3rd utmost point 10 (when having 4 magnetic poles, the 3rd utmost point 10 is the magnetic pole on first utmost point, 8 diagonal) between keep a circuitous lead-in wire and reserve section 5, then, the 3rd utmost point 10 with opposite direction coiling 4, the four utmost points 11 again with the positive direction coiling, thereby on two pairs of magnetic poles, lay out two groups of single line coils.After coiling was good, the reservation section 5 that will go between was blocked, and forms two and interfaces 6,7, was that enamelled wire one end 201 to contact 6 and the enamelled wire other end 202 to contact 7 is connected in parallel again with two groups of coils on two pairs of magnetic poles.Because adopt to be connected in parallel, its coil groups is divided into two around scheme with respect to existing single line list, is heterogeneous type of drive, therefore, directly descend fan to obtain same rotating speed for making identical enamelled wire line, the coil number of turns of reeling is set to have now the twice of single-phase driving.
In the present embodiment, the interior direction of winding of 2 coils on two magnetic poles of coil groups is opposite, guarantee that the magnetic pole of adjacent windings energising back generation is opposite on the same group, but not on the same group but the coil winding direction that is wound on the adjacent pole is identical, but the utility model is not limited to this coiling form, in different embodiment, for the coil in two coil groups respectively, its winding mode both can be identical, also can be opposite.
Present embodiment preferably changes into two groups of coils from parallel connection of coils of the present utility model with the single group coil of known arrangement, because half that total resistance of coil in parallel is a single group coil, constant in order to reach total resistance, just must be increased to original twice to the resistance of two groups of coils of parallel connection, so just can be identical after the parallel connection with the single group coil resistance, and resistance will strengthen twice, will use the thinner more number of turns of enamelled wire coiling.For example, the single line list that adopts prior art is around mode, if its line footpath 1.00mm, the number of turns of coiling is 100, adopt mode of the present utility model, make two groups of coils from parallel connection of coils, half that total resistance of the coil after the parallel connection is a single group coil, constant for total resistance, can directly be that the enamelled wire of 0.6mm is around 200 circles with line; If three groups of parallel connections, can adopt line directly for the enamelled wire of 0.4mm around 300 circles, by that analogy.The utility model is the same convenient around scheme with existing single line list, and the winding efficiency height can be avoided hanging wire, be hindered line, to coil winding machine require low, thereby reduced production cost
In the present embodiment, the fan motor stator silicon steel plate is 4 magnetic poles, therefore turn to two groups of bridging coils, but the silicon steel sheet of the utility model motor stator is not limited to 4 magnetic poles, similar, when the silicon steel sheet that adopts greater than 4 magnetic poles, then can constitute the fan motor stator that connects greater than two groups of coils from parallel connection of coils.For example, adopt the silicon steel sheet that 9 magnetic poles are arranged, 3 coils on 3 of adjacency magnetic poles are one group and are connected in series successively, and 3 groups of coils from parallel connection of coils connect.
On the other hand, the utility model also provides the brushless radiator fan that adopts this fan motor.The stator of fan motor preferably adopts the improvement setting of above embodiment, and the rotor of fan motor can adopt technical scheme well known in the art.
The utility model has reduced the requirement to coil winding machine, the coiling of single enamelled wire list, and the winding efficiency height, the line footpath is little, avoids hanging wire and hinders line, has reduced production cost.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.
Claims (6)
1. fan motor that improves stator winding, described stator comprises a plurality of magnetic poles and is wound on the coil of the equal number on each magnetic pole with single line, it is characterized in that, with the coil at least 2 magnetic poles is one group, each is organized interior loop and is connected in series in adjacent the two the opposite mode of coiling direction, many group coils from parallel connection of coils connect, and the line footpath of described coil adapts with the rotation speed of the fan that will reach with the value of the number of turns.
2. fan motor as claimed in claim 1 is characterized in that, described magnetic pole is 4, and 2 coils on adjacent 2 magnetic poles are one group and are connected in series that 2 groups of coils from parallel connection of coils connect.
3. fan motor as claimed in claim 1 is characterized in that, described magnetic pole is 9, and 3 coils on 3 of adjacency magnetic poles are one group and are connected in series successively, and 3 groups of coils from parallel connection of coils connect.
4. brushless radiator fan, the stator and the rotor that comprise fan motor, described stator comprises a plurality of magnetic poles and is wound on the coil of the equal number on each magnetic pole with single line, it is characterized in that, with the coil at least 2 magnetic poles is one group, each is organized interior loop and is connected in series in adjacent the two the opposite mode of coiling direction, organizes coils from parallel connection of coils more and connects, and the line footpath of described coil adapts with the rotation speed of the fan that will reach with the value of the number of turns.
5. brushless radiator fan as claimed in claim 4 is characterized in that, described magnetic pole is 4, and 2 coils on adjacent 2 magnetic poles are one group and are connected in series that 2 groups of coils from parallel connection of coils connect.
6. brushless radiator fan as claimed in claim 4 is characterized in that, described magnetic pole is 9, and 3 coils on 3 of adjacency magnetic poles are one group and are connected in series successively, and 3 groups of coils from parallel connection of coils connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201464200U CN201260097Y (en) | 2008-08-08 | 2008-08-08 | Fan motor with stator winding improved and brushless heat radiating fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201464200U CN201260097Y (en) | 2008-08-08 | 2008-08-08 | Fan motor with stator winding improved and brushless heat radiating fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201260097Y true CN201260097Y (en) | 2009-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201464200U Expired - Lifetime CN201260097Y (en) | 2008-08-08 | 2008-08-08 | Fan motor with stator winding improved and brushless heat radiating fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201260097Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101771320A (en) * | 2010-02-10 | 2010-07-07 | 无锡东南车辆科技有限公司 | DC brushless electric machine for photovoltaic water pump |
| CN103053098A (en) * | 2010-08-05 | 2013-04-17 | 瑞美技术有限责任公司 | Phase lead connection for parallel path electric machine |
| CN103378666A (en) * | 2012-04-27 | 2013-10-30 | 台达电子工业股份有限公司 | Motor |
-
2008
- 2008-08-08 CN CNU2008201464200U patent/CN201260097Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101771320A (en) * | 2010-02-10 | 2010-07-07 | 无锡东南车辆科技有限公司 | DC brushless electric machine for photovoltaic water pump |
| CN103053098A (en) * | 2010-08-05 | 2013-04-17 | 瑞美技术有限责任公司 | Phase lead connection for parallel path electric machine |
| CN103378666A (en) * | 2012-04-27 | 2013-10-30 | 台达电子工业股份有限公司 | 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: 20090617 |
|
| CX01 | Expiry of patent term |