TWI618331B - Protective structure of stator and fan using the same - Google Patents

Abstract

The present invention is a stator protection structure and a fan thereof. The stator protection structure includes a plurality of silicon steel sheets, at least one first filler and a coating body. The steel sheets are wound with a plurality of coils, and each of the steel sheets has one a hole and a plurality of magnetic poles extending outward from the hole and defining a space, the first filler is accommodated in the space, and the coating system is disposed outside the silicon steel sheet The upper filler is integrated with the first steel sheet and the first filler; therefore, the first filler is accommodated in the space between each two magnetic poles, so as to effectively reduce the amount of the coating material, thereby effectively achieving cost saving. The effect of the person.

Description

Stator protection structure and its fan

The present invention relates to a fan stator structure, and more particularly to a stator protection structure and a fan thereof that achieve cost-saving effects.

Referring to FIGS. 1A, 1B, and 1C, the conventional waterproof and dustproof stator structure is applied to a fan 2, which includes a plurality of silicon steel sheets 10 and a waterproof rubber layer 11 which are wound around the steel sheet 10. A plurality of coils 12 are provided, and each of the silicon steel sheets 10 has a hole 101 formed at a center of the silicon steel sheet 10, and a plurality of magnetic poles 103 extend outward from the hole 101, and the two magnetic poles 103 are disposed therebetween. There is a space 104, the waterproof rubber layer 11 is accommodated in the space 104, and is coated on the silicon steel sheet 10, that is, the waterproof rubber layer 11 is sprayed into the steel sheet 10 and the space 104. The glue is filled so that the water-repellent rubber layer 11 is filled in each of the spaces 104, and the steel sheets 10 are covered, so that the stator is effectively waterproof and dust-proof by the waterproof rubber layer 11.

In addition, the fan 2 includes a frame body 21, a fan wheel 22, and a certain sub-group (that is, the stator structure 1). The frame body 21 has an accommodation space 211 for receiving the fan wheel 22, and a shaft barrel 212. The fan wheel 22 has a shaft center 221 and is pivoted relative to the shaft barrel 212. The plurality of blades 223 are formed along the circumference of the fan wheel 22, and the stator group is formed. The structure and the connection relationship are the same as those of the foregoing stator structure 1, and will not be described herein.

However, although the conventional technology can achieve the waterproof and dustproof effect, it extends another problem, that is, due to the relationship of the space 104 between each of the two magnetic poles 103, a die (not shown) is used for the steel. When the sheet 10 is integrally formed by injection molding, the glue liquid (that is, the glue liquid forming the waterproof rubber layer 11) in the space 104 is filled first, and then the glue liquid is coated on the steel sheet 10 to be The water-repellent rubber layer 11 is formed on the outer side of the steel sheet 10, so that the amount of the material of the waterproof rubber layer 11 is increased, which leads to an increase in cost.

In addition, since the resource recovery person needs to spend more time and manpower in the recycling of the conventional stator in response to environmental protection, the water repellent layer 11 on the outer side of the silicon steel sheet 10 is included in the space 104. After the water-repellent rubber layer 11 integrated with the outer side is forcibly separated, the subsequent recycling process can be continued, thereby causing an extra labor and time cost.

As described above, the prior art has the following disadvantages: 1. Increased cost; 2. Excessive labor and time cost.

Therefore, how to solve the above problems and problems in the past, that is, the inventors of this case and the relevant manufacturers engaged in this industry are eager to study the direction of improvement.

Accordingly, in order to effectively solve the above problems, it is an object of the present invention to provide a stator protection structure that is efficiently accommodated in a space defined by a plurality of first fillers in a space defined between two magnetic poles.

Another object of the present invention is to provide a stator protection structure having a reduced amount of coating material.

Another object of the present invention is to provide a stator protection structure having a waterproof, dustproof, and salt spray resistant effect.

Another object of the present invention is to provide a fan with cost savings.

In order to achieve the above object, the present invention provides a stator protection structure, comprising: a plurality of coils wound on a plurality of silicon steel sheets, each of the steel sheets having a hole and a plurality of magnetic poles extending outward from the hole and being symmetrical, and a space is defined between each of the two magnetic poles; at least one first filler is accommodated in the space; and a coating system is coated on the outer side of the silicon steel sheets to combine with the silicon steel sheets and the first filler Therefore, the combination of the plurality of silicon steel sheets, the first filler and the covering body of the present invention makes it possible to effectively achieve cost-saving effects.

The present invention further provides a fan, comprising a fan wheel, a frame body and a certain sub-group. The fan wheel has an axis and a plurality of blades are formed around the circumference of the fan wheel. The frame body has a receiving space. The fan wheel is formed at the center of the frame and is pivoted with the axis of the opposite fan wheel.

The stator assembly is sleeved on the shaft cylinder, and comprises at least one first filler, a covering body and a plurality of silicon steel sheets wound with a plurality of coils, each of the steel sheets having a hole and a plurality of magnetic poles The hole extends outwardly and is symmetrically formed, and the space between each of the two magnetic poles defines a space for accommodating the first filler.

The covering body is disposed on the outer side of the silicon steel sheets to be integrated with the silicon steel sheets and the first filling material; therefore, the first filling material is accommodated in the space between each two magnetic poles to effectively reduce The amount of the coating material is used to effectively achieve cost-saving effects.

3‧‧‧ stator protection structure

31‧‧‧矽Steel sheet

32‧‧‧ hole

33‧‧‧ magnetic pole

331‧‧‧Extension

332‧‧‧ Extension

334‧‧‧ gap

34‧‧‧Magnetic pole

35‧‧‧ Magnetic end face

36‧‧‧ Space

37‧‧‧ coil

38‧‧‧First filler

381‧‧‧

39‧‧‧ Covering body

4‧‧‧Fan

41‧‧‧fan wheel

411‧‧‧Axis

412‧‧‧ leaves

43‧‧‧ frame

431‧‧‧ accommodating space

433‧‧‧ shaft tube

5‧‧‧Circuit board

51‧‧‧ gap

52‧‧‧Second filler

Figure 1A is a partial cross-sectional view of a conventional stator structure.

Figure 1B is a schematic cross-sectional view of a conventional stator structure.

Figure 1C is a schematic diagram of the implementation of the prior art.

2A is a partial cross-sectional view showing the stator protection structure of the first preferred embodiment of the present invention.

2B is a top cross-sectional view showing the stator protection structure of the first preferred embodiment of the present invention.

Figure 3 is a schematic cross-sectional view showing a first preferred embodiment of the present invention.

Figure 4 is an exploded perspective view of a first preferred embodiment of the present invention.

Figure 5 is a partial cross-sectional view showing the stator protection structure of the second preferred embodiment of the present invention.

Figure 6 is a schematic cross-sectional view showing a second preferred embodiment of the present invention.

The above object of the present invention, as well as its structural and functional features, will be described in accordance with the preferred embodiments of the drawings.

Referring to FIGS. 2A and 2B, the present invention is a stator protection structure and a fan thereof. In the first preferred embodiment of the present invention, the stator protection structure 3 includes a plurality of silicon steel sheets 31 and at least a first filler 38. And a covering body 39 on which the plurality of coils 37 are wound, and each of the steel sheets 31 has a hole 32, and a plurality of magnetic poles 33 extending outward from the hole 32 and being symmetrical ( That is, the magnetic poles 33 extend outwardly along the hole 32 and are symmetrically formed, and a space 36 is defined between each of the two magnetic poles 33 for receiving the first filler 38; in short, each of the first A filler 38 is received in the space 36 opposite to each other such that the outer side of the first filler 38 abuts against the inner side of the space 36.

In addition, the magnetic pole 33 has an extending portion 331 and a radially curved surface extending portion 332. One end of the extending portion 331 is formed to extend outward from the magnetic pole 33 itself, and the other end of the extending portion 331 is connected to form. The extension portion 332 is formed, and the extension portions 331 are overlapped to form a magnetic pole post 34 (see FIG. 2A). The extension portions 332 are overlapped to form a magnetic pole surface 35 (see, for example, FIG. 2A).

A gap 334 is formed between each of the two expansion portions 332, and the gap 334 is connected to the corresponding space 36. The first filler 38 has a protrusion 381 that protrudes from the first filler 38 toward the corresponding gap 334 to be received in the gap 334.

Furthermore, the covering body 39 is disposed on the outer side of the silicon steel sheet 31 so as to be integrated with the steel sheet 31 and the first filler 38, that is, the covering body 39 is integrally coated and coated. The magnetic pole 34 and the magnetic pole surface 35 and the first filler 38 constitute the stator protection structure 3, so that the stator protection structure 3 of the present invention transmits the coating body 39 to achieve waterproof, dustproof and salt spray prevention effects. .

In addition, when manufacturing, a mold (not shown) only needs to be glued to the outside of the silicon steel sheet 31 to cover the first steel sheet 31 and the first filler 38 disposed in the space 36, and the mold is demolded. The covering body 39 is formed on the tantalum steel sheets 31, so that the first filling material 38 is filled in the space 36, so that the amount of the material of the covering body 39 is effectively reduced, thereby effectively achieving the cost saving effect.

In addition, since the covering body 39 is only formed on the steel sheet 31, there is no relationship that any glue is poured into the space 36, so that the resource recycler can quickly pack the resource when sorting the resources. The cover 39 separates the tantalum steel sheets 31 to effectively shorten the resource classification time, thereby effectively saving labor costs.

Continuing to refer to Figures 3 and 4, supplemented by Figures 2A and 2B, the stator protection structure 3 of the preferred embodiment is applied to a fan 4, which includes a fan wheel 41 and a frame 43. And a certain sub-group (that is, the above-mentioned stator-guaranteed structure 3), wherein the fan wheel 41 has a shaft center 411 and a plurality of blades 412, one end of the shaft 411 is fixedly fixed to the fan wheel 41, and the like The blade 412 is formed to surround the circumferential side of the fan wheel 41. The frame body 43 has an accommodating space 431 for accommodating the fan wheel 41. A shaft cylinder 433 is formed at the center of the frame body 43 and opposite to the axis 411 of the fan wheel 41. One end is pivoted. The hole 32 of the stator assembly (that is, the stator protection structure 3) is sleeved on the shaft 433, and the overall structure, the connection relationship and the efficiency thereof are the same as those of the stator protection structure 3, and the details are not described herein again. .

Therefore, when the fan 4 is running or stopped, moisture or dust is prevented from penetrating into the stator group through the covering body 39, so as to effectively prevent the silicon steel sheet 31 and the coil 37 in the stator group from being damaged by erosion (such as the silicon steel sheet 31 or The coil 37 is rusty). Therefore, the integrated steel sheet 31, the first filler 38 and the covering body 39 of the present invention are integrated into one design, so that the stator group can not only protect the stator group from water, dust and salt spray, but also effectively saves the economy. The effect of cost.

FIG. 5 is a schematic view showing a second preferred embodiment of the present invention. The preferred embodiment is substantially the same as the structure and the connection relationship of the first preferred embodiment, so the difference between the two is not described again. The steel sheet 31 is butted to a circuit board 5, and the circuit board 5 defines a gap 51 between the corresponding steel sheets 31. The gap 51 is provided with at least one second filler 52 to make the second The outer side of the filler 52 abuts against the inner side of the gap 51, that is, the outer side of the second filler 52 abuts against the side of the steel sheet 31 and the circuit board 5, respectively.

In addition, the covering body 39 is disposed on the outer sides of the silicon steel sheets 31 and the circuit board 5 to be integrated with the silicon steel sheets 31 and the first and second fillers 38 and 52 and the circuit board 5. That is, the cover body 39 is integrally coated and coated on the pole post 34 and the pole end surface 35, the first and second fillers 38 and 52, and the circuit board 5 to constitute the stator protection structure 3. The covering body 39 of the invention can effectively prevent foreign matter (such as water, dust, salt spray) from infiltrating into the circuit board 5 and the silicon steel sheets 31, thereby effectively preventing the oxidation of the silicon steel sheets 31.

6 is a schematic cross-sectional view showing a second preferred embodiment of the present invention; the stator protection structure 3 of the preferred embodiment 5 is applied to the fan 4, wherein the structure and connection relationship of the fan 4 and The component symbols are substantially the same as those of the fan 4 of the first preferred embodiment described above, and therefore will not be further described herein.

As described above, the present invention has the following advantages compared with the prior art: 1. has cost saving; 2. shortens resource classification time and saves labor cost; 3. has waterproof, dustproof and anti-salt effect; 4. has prevention The effect of equal oxidation of the steel sheet 31.

It is to be understood that the above-described methods, shapes, configurations, and devices of the present invention are intended to be included within the scope of the present invention.

Claims (14)

A stator protection structure comprising: a plurality of silicon steel sheets, wherein a plurality of coils are wound thereon, each of the steel sheets has a hole and a plurality of magnetic poles extending outward from the hole and being symmetric, and each of the two magnetic poles defines a a space; at least one first filler, which is accommodated in the space; and a covering body disposed on the outer side of the silicon steel sheets to be integrated with the silicon steel sheets and the first filler. The stator protection structure of claim 1, wherein the magnetic pole has an extension portion and an expansion portion, one end of the extension portion is formed to extend outward from the magnetic pole itself, and the other end is connected to form the extension portion. And the extensions overlap to form a pole, and the extensions overlap to form a pole end surface. The stator protection structure according to claim 2, wherein a gap is formed between each of the two expansion portions to communicate with the space. The stator protection structure of claim 3, wherein the first filler has a protrusion that protrudes from the first filler toward the gap to be received in the gap. The stator protection structure of claim 2, wherein the coating system is integrally coated on the pole post and the magnetic pole face and the first filler. The stator protection structure according to claim 2, wherein the silicon steel sheets are butted to a circuit board, and the circuit board is provided with at least one second filler corresponding to a gap between the steel sheets. The covering body is disposed on the outer sides of the silicon steel sheets and the circuit board to be integrated with the steel sheets, the first and second fillers, and the circuit board. The stator protection structure according to claim 6, wherein the coating system integrally emits the magnetic pole and the magnetic pole surface and the first and second fillers and the circuit board. A fan includes: a wheel having an axis, and a plurality of blades are formed around the circumference of the wheel; a frame having an accommodation space for receiving the fan wheel, and a barrel is formed at the center of the frame a pivotal portion opposite to the axis of the fan wheel; and a certain subgroup disposed on the shaft cylinder, and comprising: a plurality of silicon steel sheets, the plurality of coils being wound thereon, each of the steel sheets having one The hole, and the plurality of magnetic poles extend outwardly along the hole and are symmetrically formed, and a space is defined between each of the two magnetic poles; at least one first filler is accommodated in the space; and a covering body is provided On the outer side of the tantalum steel sheets, they are integrated with the tantalum steel sheets and the first filler. The fan of claim 8, wherein the magnetic pole has an extension portion and an extension portion, one end of the extension portion is formed to extend outward from the magnetic pole itself, and the other end is connected to form the extension portion, and the pole portion is The extensions overlap to form a pole, and the extensions overlap to form a pole face. The fan of claim 9, wherein a gap is formed between each of the two extensions to communicate with the space. The fan of claim 10, wherein the first filler has a protrusion that protrudes from the first filler toward the gap to be received in the gap. The fan of claim 9, wherein the coating system is integrally coated on the pole post and the magnetic pole face and the first filler. The fan of claim 9, wherein the silicon steel sheets are butted to a circuit board, and the circuit board is provided with at least one second filler corresponding to a gap between the steel sheets. The covering body is disposed on the outer side of the steel sheet and the circuit board to be integrated with the steel sheet and the first and second fillers and the circuit board. The fan of claim 12, wherein the coating system integrally emits the magnetic pole and the magnetic pole face and the first and second fillers and the circuit board.