CN1304758C

CN1304758C - Fan device

Info

Publication number: CN1304758C
Application number: CNB03115915XA
Authority: CN
Inventors: 白木学; 小野寺启; 钱华
Original assignee: SHANGHAI SIKAO ELECTRONIC CO Ltd
Current assignee: SHANGHAI SIKAO ELECTRONIC CO Ltd
Priority date: 2003-03-21
Filing date: 2003-03-21
Publication date: 2007-03-14
Anticipated expiration: 2023-03-21
Also published as: CN1532423A

Abstract

The present invention provides a fan device which comprises a rotor and a stator, wherein the rotor is arranged in the stator, and comprises a shaft, an impeller and a magnet, wherein the shaft is positioned on the center of the impeller, and the magnet is attached to the inner side of the impeller; the stator comprises a bearing, a bearing pipe seat, a coil pipe, a sub-coil of a motor, a base plate and a casing, wherein the bearing is arranged in the bearing pipe seat, the bearing pipe seat is sheathed in the coil pipe, the sub-coil of a motor is sheathed on the coil pipe, and the coil pipe is composed of an upper coil pipe and a lower coil pipe. When the fan of the present invention is melted by heat and strengthened, only the sub-coil of a motor needs to be melted by heat, and the coil pipe does not need to be melted by heat; after the treatment process is finished, the sub-coil of a motor is installed on the coil pipe. Thus, a process for heating the coil pipe is omitted, and the coil pipe can not deform; thereby, the rate of finished products of the fan is greatly improved, and the cost is reduced.

Description

Blower fan apparatus

Technical field

The present invention relates to electric device, more specifically refer to be used for to dispel the heat better and the blower fan apparatus of blowing.

Background technique

The sectional view of traditional blower fan apparatus is with shown in Figure 5, and blower fan apparatus 101 comprises rotor 102 and stator 103.Rotor 102 comprises axle 104, impeller 105, magnet 106.

Stator 103 has bearing 108, bearing base 109, motor subcoil 111, yoke plate 112, coil pipe 113 up and down, and coil pipe 113 is whole shape, and circle pipe 113 is placed on the bearing base 109.

Direct current (d.c.) flows into motor subcoil 111, and magnetic bearing base 109 is magnetized, and Pei Zhi yoke plate 112 is magnetized at the N utmost point and the S utmost point respectively up and down, and the flange 112a of periphery is relative positions with magnet 106.Even number flange 112a up and down disposes alternately at circumferencial direction, and magnet 106 is magnetized at circumferencial direction and is identical even number.Attract repulsive force according to forming between flange 112a and the magnet 106, rotor 102 rotations have constituted blower fan apparatus like this.

But, in the above-mentioned blower fan apparatus, after twisting in fan coil 111 on the coil pipe 113, when heat is melted firm processing, because the cause of being heated, volume has the coil pipe 113 of coil 111 to be out of shape, and makes the electrical property of blower fan and mechanical property become bad, when serious, therefore the whole wind machine all can be scrapped.

Summary of the invention

At the problems referred to above that the conventional fan device exists, the purpose of this invention is to provide a kind of coil pipe when heat is melted firm processing, the blower fan apparatus that is difficult for deforming.

In order to address the above problem, the present invention adopts following technological scheme:

A kind of blower fan apparatus, comprise rotor and stator, rotor is placed in the stator, and rotor contains axle, impeller, magnet, axle is positioned at the central authorities of impeller, magnet adheres on the impeller inboard, and stator contains bearing, bearing base, coil pipe, motor subcoil, substrate, shell, and bearing places in the bearing base, the bearing base is placed in the coil pipe again, the motor subcoil is placed on the coil pipe, and coil pipe places shell by substrate, wherein:

Described coil pipe is made up of last coil pipe and lower coil pipe, and last coil pipe and lower coil pipe fasten, and the described coil pipe of going up has a tube portion that is placed in the motor subcoil, and last coil pipe is provided with four protuberances;

Described lower coil Guan Chengyi plectane has the ccontaining circular hole of going up coil socket portion on the plectane, the lower coil pipe is provided with and four corresponding protuberances of protuberance of last coil pipe.

Described upward coil pipe and lower coil pipe are inlayed coil yoke plate and lower coil yoke plate respectively.

The described coil socket subordinate port of going up has two protuberances, and having on the described lower coil pipe circular hole can the ccontaining recess of going up two protuberances of coil socket subordinate port.

Because the present invention has adopted above-mentioned technological scheme, on traditional blower fan structure basis, coil pipe is designed to coil pipe and lower coil pipe, when blower fan of the present invention being carried out the firm processing of heat thawing, as long as being carried out heat, the motor subcoil melts processing, will not melt processing together with carrying out heat by coil pipe, after disposing, again the motor subcoil is installed on the coil pipe.Therefore, saved the operation of wanting on the heating coil pipe, coil pipe can not be out of shape, and makes the yield rate of blower fan improve greatly, has reduced cost.

Description of drawings

Figure 1 shows that the sectional schematic diagram of blower fan apparatus of the present invention.

Fig. 2 is the STRUCTURE DECOMPOSITION schematic representation of Fig. 1 blower fan apparatus.

Fig. 3 A is that the A-A of Fig. 3 B is to sectional schematic diagram.

Fig. 3 B is the elevational schematic view that goes up coil pipe.

Fig. 4 A is the schematic top plan view of lower coil pipe.

Fig. 4 B is that the A-A of Fig. 4 A is to sectional schematic diagram.

Fig. 5 is the sectional schematic diagram of conventional fan device.

Embodiment

See also Fig. 1, shown in Figure 2, blower fan apparatus 1 of the present invention comprises rotor 2 and stator 3, and rotor 2 is placed in the stator 3.Rotor 2 comprises axle 4, impeller 5, ringshaped magnet 6 and is formed in one that axle 4 is positioned at the central authorities of impeller 5, and magnet 6 adheres on impeller 5 inboards, and magnet 6 and axle 4 become one and together rotate.In the embodiment of the invention, magnet 6 is spaced apart in peripheral direction, and impeller 5 rotations produce wind-force, air-supply vertically.

Stator 3 comprises shell 7, bearing 8, bearing base 9, goes up coil pipe 10, lower coil pipe 11, motor subcoil 12, substrate 13, bearing 8 places in the bearing base 9, in the coil pipe after bearing base 9 is placed on again and is fastened by last coil pipe 10, lower coil pipe 11, motor subcoil 12 is placed on the coil pipe, coil pipe places shell 7 by substrate 13, and shell 7 has the inner space that rotor 2 rotates freely.Allow it flow into air outside, from other local exhausting airs from an end of opening.

Last coil pipe 10 and lower coil pipe 11 are being inlayed respectively and are being gone up coil yoke plate 15 and lower coil yoke plate 16, and last coil pipe 10 and lower coil pipe 11 peripheral parts are respectively protuberance 15a and protuberance 16a.

Cylindrical bearing base 9 is ccontaining bearing 8 in inside, and last coil pipe 10 and lower coil pipe 11 are inserted on the periphery of base 9, push down coil pipe 10 by top, is being pressed simultaneously, and it also is a kind of magnetic that motor subcoil 12 has been played the iron core effect.

Shown in Fig. 3 A, Fig. 3 B, it has a 10a of portion last coil pipe 10, is hole 10b in the 10a of tube portion inside, and around the 10a of tube portion motor subcoil 12 is arranged.Last coil yoke plate 15 is integral with last coil pipe 10 inside by resin and is connected, and last coil pipe 10 is provided with four protuberance 15a.The 10a of tube portion the two recess 10c of place are arranged bottom, other then is the two protuberance 10d of place.

Shown in Fig. 4 A, Fig. 4 B, lower coil pipe 11 is in the circular plate shape slightly of the porose 11b of central authorities, and lower coil yoke plate 16 is integral with lower coil pipe 11 inside by resin and is connected, and there is the corresponding protuberance 16a with 10 4 protuberance 15a of last coil pipe in four places of periphery.There are two local recess 11a at the edge of hole 11b of central authorities, and make peace greatly the reach the standard grade amplitude of protuberance 10d of circle pipe 10 of the amplitude of recess 11a is identical.When assembling recess 11a and protuberance 10d, coincide mutually.

When assembling blower fan apparatus 1 of the present invention, at first ring magnet 6 is fixed on the inboard of impeller 5, in central installation shaft 4, be assembled into rotor 2.Bearing 8 is pressed into the inside of bearing base 9.

Then, in advance the motor subcoil 12 that melts behind the spiral is inserted on the 10a of tube portion of coil pipe 10, allows the recess 11a of lower coil pipe 11 and protuberance 10d coincide, lower coil pipe 11 is installed.Then bearing base 9 is inserted and led on the hole of the coil pipe that has assembled 10b, 11b, again mutual group such as substrate 13, shell 7 are dressed up stator 3.At last, the axle 4 of rotor 2 is inserted on the bearing 8 of inside of bearing base 9, the blower fan apparatus assembling finishes.

When in a single day flowing in the motor subcoil by substrate 13 direct current (d.c.)s, the bearing base 9 of magnetic will be magnetized, contact the bearing base 9 about on coil yoke plate 15, lower coil yoke plate 16 magnetize at the N utmost point, the S utmost point respectively.4 protuberance 15a of peripheral part are the N utmost points, and 4 protuberance 16a are S utmost points, magnetize in the circumferencial direction ends of the earth, and with magnet 6 relative configurations, so according to mutual attraction repulsive force, torques take place in magnet 6, rotor 2 rotations.

Because coil pipe is designed to coil pipe 10 and lower coil pipe 11, thus motor subcoil 12 heat melt handle after, can insert in the coil pipe, in addition, the usefulness resin last coil yoke plate 15 and lower coil yoke plate 16 respectively with last coil pipe 10.Lower coil pipe 11 is set into one, and it is good to have reached precision, low-cost structure.

Last coil pipe 10 and lower coil pipe 11 places are provided with protuberance 10d and the recess 11a that contraposition is used respectively, can improve the precision of blower fan assembling.

Claims

1, a kind of blower fan apparatus, comprise rotor and stator, rotor is placed in the stator, and rotor contains axle, impeller, magnet, axle is positioned at the central authorities of impeller, magnet adheres on the impeller inboard, and stator contains bearing, bearing base, coil pipe, motor subcoil, substrate, shell, and bearing places in the bearing base, the bearing base is placed in the coil pipe again, the motor subcoil is placed on the coil pipe, and coil pipe places shell by substrate, it is characterized in that:

2, blower fan apparatus as claimed in claim 1 is characterized in that: described upward coil pipe and lower coil pipe are inlayed coil yoke plate and lower coil yoke plate respectively.

3, blower fan apparatus as claimed in claim 1 is characterized in that: the described coil socket subordinate port of going up has two protuberances, and having on the described lower coil pipe circular hole can the ccontaining recess of going up two protuberances of coil socket subordinate port.