CN2144892Y

CN2144892Y - Quick plug and connecting combined small size radiating fan

Info

Publication number: CN2144892Y
Application number: CN92243731U
Authority: CN
Inventors: 洪银树
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-12-15
Filing date: 1992-12-15
Publication date: 1993-10-27
Anticipated expiration: 2002-12-15

Abstract

The utility model discloses a quick plug and connecting combined small size heat radiation fan, comprising the parts of the fan blade 3 of the rotor, the coil 1 of the stator, the circuit board 2, etc. At least two convex posts 12 are arranged on the base 11 of the coil 1 of the stator part. The utility model is characterized in that a neck part 13 whose diameter is smaller than the diameter of the convex post and the shape of whose end head looks like a cone head 14 is arranged on the front end of the convex post 12. The neck part 13 is clamped in the positioning hole 21 of the circuit board 2 to form the fixing combination between the coil and the circuit board. The plug and connecting combined mechanism of the heat radiation fan makes the assembly speed fast, and no harmful combustion gases contaminate environment. When a thought hole 22 loading lying type starting integrated circuit block 23 is arranged on the circuit board, then the heat radiation fan can be more ultrathin miniaturization.

Description

Quick plug and connecting combined small size radiating fan

The utility model relates to the heat emission fan technical field, relates in particular to a kind of super-thin small heat-dissipating fan.

Existing Chang Yong heat emission fan, the system that combines between loop A and the wiring board B is provided with plastic cement projection D by the pedestal C of loop A as shown in Figure 4, projection D partly protrudes from outside the hole E of wiring board B, and the plastic cement projection D that protrudes is given fusion pressure or flat F, thereby loop A and wiring board B are connected with hot melting way.Because in conjunction with trouble comparatively, and it is harmful to health, therefore very undesirable to emit combustion gas with hot melting way.

The purpose of this utility model is to provide a kind of heat emission fan of quick plant integrated structure, to improve work efficiency and to improve work situation, avoids polluting.

The purpose of this utility model is to realize like this, on the pedestal of heat emission fan coil, be provided with at least two projections, the front end of projection is that a diameter is little than the projection diameter, and the neck that matches with the location hole of substrate, the termination portion of neck is provided with the step that a diameter is a bit larger tham location hole, and termination portion is the conehead shape foremost.

During the heat emission fan assembling, the conical head of the end of the projection of pedestal on it is imposing under the enough pressure, can pass location hole apace, make its neck card sink into location hole, and by cone head part greater than the step of location hole with coil and wiring board secure bond, thereby realize the purpose of quick grafting combination.

With drawings and Examples the utility model structure is further narrated below.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the present utility model.

Fig. 2 is the utility model three-dimensional assembly diagram.

Fig. 3 is a B position enlarged drawing among Fig. 2.

Fig. 4 is the secure bond structure chart of coil and wiring board in the existing small heat-dissipating fan.

By Fig. 1～3 as seen, the small heat-dissipating fan is by the flabellum 3 of rotor and the coil 1 of stator, part such as wiring board 2 grades is formed, central rotating shaft 31 in the flabellum 3 passes the centre bore 13 of coil 1, the installing hole 24 of wiring board 2, be buckled in the neck position of rotating shaft 31 and make up by a locating ring 32, on the pedestal 11 of the coil 1 of stationary part, be provided with at least 2 projections 12, the front end that it is characterized in that projection 12 be a diameter than the projection diameter little and neck 13 that match with location hole 21 on the substrate 2, the termination portion of neck is provided with the step 16 that a diameter is a bit larger tham location hole 21, and its front end 14 is the conehead shape, projection 12 can pass the location hole 21 of wiring board, and blocks the secure bond of sinking into the neck of projection and forming coil and wiring board.During the heat emission fan assembling, projection 12 makes conehead 14 and step 16 pass location hole 21 fast under enough pressure, makes neck 13 card sink into location hole 21, and by the effect of step 16, coil 1 is combined with wiring board 2 eye-splice rapidly, thereby realize quick grafting secure bond.

Structure shown in Figure 3 offers separating tank 15 for adopting at the center of projection 12, so that the conical head 14 of projection and step 16 more can pass through the location hole 21 of substrate 2 easily, and forms secure bond.

The through hole 22 in the wiring board 2 is to be provided with in it and to be provided with for starting integrated circuit block 23 being crouched lie among Fig. 1,2 in addition, the volume and the thickness of heat emission fan are reduced, and more exquisite miniaturization, but also can make the magnetic field center that magnetic pole produced of starting integrated circuit and rotor more approaching.Because the position angle of integrated circuit block is fixed, the starting point of rotor is also fixed, thus when both magnetic field centers more near the time, the starting operation of motor is just more good, the life-span of heat emission fan is just long, and does not have dead angle or the generation of inoperative situation.

By above-mentioned these architectural features as can be known, the utility model can be pegged graft in conjunction with fixing effect fast and be avoided the hot melt projection to produce generation smelly, poisonous gas, therefore can increase effect greatly and improve production environment.And the starting integrated circuit block that the perforate 22 on the wiring board and interior lying type thereof are provided with then reduces general thickness and makes the heat emission fan small ultra-thinization then more make it have advantage.

Claims

1, a kind of small heat-dissipating fan of quick grafting combination is by the flabellum 3 of rotor and the coil 1 of stator, part such as wiring board 2 grades is formed, central rotating shaft 31 in the flabellum 3 passes the centre bore 13 of coil 1, the installing hole 24 of wiring board 2, be buckled in the neck position of rotating shaft 31 and make up by a locating ring 32, on the pedestal 11 of the coil 1 of stationary part, be provided with at least 2 projections 12, the front end that it is characterized in that projection 12 be a diameter than the projection diameter little and neck 13 that match with location hole 21 on the substrate 2, the termination portion of neck is provided with the step 16 that a diameter is a bit larger tham location hole 21, and its front end 14 is the conehead shape.

2,, it is characterized in that the central authorities of projection 12 have vertical shape separating tank 15 by the described small heat-dissipating fan of claim 1.

3, by the described small heat-dissipating of claim 1 fan, it is characterized in that the appropriate location of wiring board 2 is provided with through hole 22, be provided with lying posture in the through hole 22 and rise and employ integrated circuit 23.