CN201122865Y - motor stator - Google Patents

Abstract

A stator arrangement for a motor, comprising: a stator unit, a positioning element, a circuit board, a conductive element and a coil. The stator unit comprises an upper insulating frame with a first winding part, a lower insulating frame and a silicon steel sheet. The positioning piece is arranged on the upper insulating frame. The circuit board is connected to the positioning member and has a first through hole. The conductive piece is mounted on the positioning piece, and part of the conductive piece penetrates through the first through hole of the circuit board and is electrically connected with the circuit board. The coil is winded on the first winding part of the upper and lower insulation frames and is electrically connected with the conductive piece. Borrow by the utility model discloses a design to avoid the end of current stator device's coil when the equipment, easily because of the perforation internal face fracture of friction collision this circuit board, borrow this to reach and improve the utility model discloses a product yield and reduction in manufacturing cost's efficiency.

Description

motor stator

【Technical field】

The utility model relates to a stator device, in particular to a motor stator device.

【Background technique】

Referring to Fig. 1, a general heat dissipation fan 1 includes a housing base 11, a stator 12 disposed in the housing base 11, a circuit board 13 connected to the stator 12, a shaft passing through the stator 12 and the circuit board 13 Tube 14, and a fan wheel 15 rotatably sheathed in the shaft tube 14.

The stator 12 has a receiving ring 121 for the shaft tube 14 to pass through, four connecting seats 122 respectively surrounding and connected to the receiving ring 121 , and four conductive coils 123 respectively wound on the connecting seats 122 . Each connection base 122 has a plug-in portion 124 at the bottom, and a conductive pin 125 located on the plug-in portion 124, each conductive coil 123 has a lead-out wire 127 that is not wound and fixed, and it is wound on the corresponding conductive pin 125 . The circuit board 13 has a plurality of insertion holes 126 through which the conductive pins 125 pass.

When the stator 12 is combined with the circuit board 13, each conductive pin 125 together with the lead wire 127 wound on it is inserted through the corresponding jack 126 of the circuit board 13, and then the two can be welded together on the circuit The solder joints on the back of the board 13, so that the four conductive coils 123 are connected and fixed with the circuit board 13 and form an electrical connection. The circuit board 13 can be energized by an external power source, and energized and excited with the four conductive coils 123 to generate a magnetic field, and the fan wheel 15 is driven to rotate by using the principle of magnetic mutual repulsion.

However, when each conductive pin 125 is inserted through the corresponding insertion hole 126 of the circuit board 13, the gap between the two is too narrow because the diameter of the insertion hole 126 is almost equal to the diameter of the conductive pin 125. , and because the lead-out wires 127 are soft and easy to break, each lead-out wire 127 must be tightly wound on the corresponding conductive pin 125 to reduce its footprint, otherwise it is very easy to connect with the circuit board 13 The inner wall surface of the socket 126 is rubbed and collided to form a fracture, so as to affect the electrical connection relationship between the four conductive coils 123 and the circuit board 13, so that the conductive coils 123 of the stator 12 cannot be effectively energized and excited to drive the fan wheel 15 to rotate, thus reducing The product yield rate and product quality are relatively unstable, which will affect the product image and competitiveness of the industry.

Therefore, how to improve the product yield and reduce the manufacturing cost has become the research direction that the related industry wants to study hard.

【Content of utility model】

The purpose of the utility model is to provide a motor stator device which can effectively avoid friction and collision between the lead-out wire of the coil and the perforated inner wall surface of the circuit board, resulting in fracture.

The stator device of the motor of the utility model comprises: a stator unit, a positioning part, a circuit board, a conductive part, and a coil.

The stator unit includes an upper insulating frame and a lower insulating frame with a first winding part stacked correspondingly to each other, and a silicon steel sheet sandwiched between the upper insulating frame and the lower insulating frame. The positioning part is arranged on the upper insulating frame. The circuit board is connected to the positioning member and has a first through hole. The conductive member is installed on the positioning member, and partly passes through the first through hole of the circuit board, and is electrically connected with the circuit board. The coil is wound on the first winding portion of the upper and lower insulating frames, and one end of the coil is electrically connected with the conductive member.

The beneficial effect of the utility model lies in that: by virtue of the design that the conductive part is installed on the positioning part and electrically connected to the coil, the lead-out wire of the general stator is prevented from rubbing and colliding with the perforated inner wall surface of the circuit board to form a fracture, And reach the effect of improving product quality and stability of the utility model.

【Description of drawings】

Fig. 1 is a sectional view of the internal structure of a general cooling fan;

Fig. 2 is a three-dimensional exploded view of a preferred embodiment of the stator device of the motor of the present invention;

Figure 3 is a perspective view illustrating the relative positions of the components of the preferred embodiment;

Fig. 4 is a partial sectional view for illustrating the state that the stator device of the motor of the present invention is installed on a cooling fan.

【Detailed ways】

The stator device of the motor of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments:

Referring to Fig. 2, Fig. 3 and Fig. 4, the preferred embodiment of the stator device of the motor of the present invention is suitable for being installed in a heat dissipation fan 2 (shown in Fig. 4), and the heat dissipation fan 2 includes a housing base 21, a A shaft tube 22 fixed at the center of the shell seat 21, a fan wheel 23 rotatably arranged on the shaft tube 22, and a magnet ring 24 arranged inside the fan wheel 23, the stator device of the motor includes a certain Subunit 3 , a positioning element 33 , a circuit board 4 , three conductive elements 5 , and three coils 6 .

It is worth mentioning that, in Fig. 4, for the convenience of description, only the partial internal structure of the cooling fan 2 is drawn, and the combination and operation principle of the cooling fan 2 can be easily completed by those familiar with motor skills, and it is not the subject of this comparison. The focus of the preferred embodiment is explained, so forgive me for not repeating it here.

The stator unit 3 includes an upper insulating frame 313 and a lower insulating frame 314 stacked corresponding to each other, and several silicon steel sheets 32 interposed between the upper insulating frame and the lower insulating frame 313 , 314 . Moreover, the upper and lower insulating frames 313 , 314 each have four first wrapping portions 312 , and the upper insulating frame 313 has three protrusions 315 adjacent to the first wrapping portions 312 and arranged at intervals.

The positioning member 33 is disposed on the upper insulating frame 313 and has four second through holes 331 .

The circuit board 4 is connected to the positioning member 33 and has four first through holes 41 communicating with the second through holes 331 of the positioning member 33 .

Each conductive member 5 is passed through one of the first through holes 41 and the connected second through hole 331, and has a part of the second winding portion 51 protruding from the positioning member 33, and the conductive member 5 is It is electrically connected with the circuit board 4 .

One of the coils 6 of the coils 6 is alternately wound on two adjacent first winding portions 312, and the remaining two coils 6 are respectively wound on other first winding portions 312, and each coil 6 One end 61 is wrapped around the adjacent second wrapping portion 51 to be electrically connected to the conductive member 5 .

What needs to be added here is that in this preferred embodiment, when assembling the stator device of the motor, in order to facilitate the winding operation of the coil 6, the coil 6 is first wound on the first A step of winding part 312, then after inserting each conductive part 5 in the positioning part 33, then the end 61 of each coil 6 is wound on the second winding part 51 of its adjacent conductive part 5; but If the coil 6 is not temporarily wound after the coil 6 is wound on the first winding portion 312, the coil 6 is easy to loosen and loosen when the conductive member 5 is inserted into the position, and Affects subsequent assembly operations; therefore, after each coil 6 is wound on the first winding portion 312, its end 61 can be temporarily wound and fixed by means of the protruding post 315 arranged on the upper insulating frame 313, and then, to be After the conductive element 5 is inserted, it is removed and wound on the second wrapping portion 51 of the conductive element 5 .

When the stator device is energized, the current is transmitted to the coil 6 via the circuit board 4 and the conductive member 5, so that the coil 6 generates a magnetic field after being energized and excited. And because this upper and lower insulating frame 313,314 is made by insulating material, so the electric current on the described coil 6 is blocked by this upper and lower insulating frame 313,314, only remaining magnetic force still can pass through this upper, lower insulating frame 313,314. The lower insulating frames 313 , 314 function, and generate magnetic repulsion with the magnet ring 24 disposed inside the fan wheel 23 of the above-mentioned cooling fan 2 , thereby pushing the fan wheel 23 to rotate.

Therefore, compared with the general cooling fan 1 mentioned above, when each conductive pin 125 is inserted through the corresponding jack 126 of the circuit board 13, because the hole diameter of the jack 126 is almost equal to that of the conductive pin 125 diameter, causing the gap between the two to be too narrow, so that the lead wire 127 wound around each conductive pin 125 is likely to rub against the inner wall of the socket 126 of the circuit board 13 to form a fracture, so as to affect the four stator coils 123 and The electrical connection relationship of the circuit board 13.

The stator device of the motor of the present invention is installed on the positioning member 33 by the conductive member 5, and is electrically connected to the coil 6, so that the conductive member 5 is passed through the second through hole 331 and the second through hole 331 of the positioning member 33. In the first through hole 41 of the circuit board 4, it is electrically connected with the circuit board 4, and has the design of the second winding part 51 for the winding and electrical connection of the coil 6, so as to ensure that the circuit board 4 and the coil are electrically connected. 6 electrical connection relationship, in order to improve the product yield and stability of the utility model, and can reduce the cost consumption of manufacturing products, so the purpose of the utility model can indeed be achieved.

Claims (3)

1. the stator apparatus of a motor, comprise: a stator unit, a circuit board, a coil, this stator unit comprise correspond to each other folded establish one have the last insulating frame of one first wound portion and insulating frame once, reach a silicon steel sheet that is folded between this upper and lower insulating frame; And this circuit board has one first perforation; And this coil spooling is on first wound portion of this upper and lower insulating frame; It is characterized in that: the stator apparatus of this motor also comprises one and is arranged at the keeper on the insulating frame on this, and an electric-conductor; This electric-conductor is installed on this keeper, and partly is arranged in first perforation of this circuit board, and is electrically connected with this circuit board; And this circuit board is connected with on this keeper, and an end of this coil is electrically connected with this electric-conductor.

2. the stator apparatus of motor according to claim 1, it is characterized in that: this keeper has one second perforation, and this electric-conductor be arranged in this first and second the perforation in, and have a part and protrude in the second outer wound portion of this keeper, and the end of this coil is that spooling is on this second wound portion.

3. as the stator apparatus of motor as described in the claim 2, it is characterized in that: have at least one projection on this on the insulating frame.

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