TWI500852B - Stator - Google Patents

Description

Fan stator

The present invention relates to a fan stator, and more particularly to a fan stator having a gas passage.

Referring to FIG. 1 , a conventional heat dissipation fan 10 includes a stator 11 , a fan wheel 12 and a base 13 for driving the rotation of the fan wheel 12 . The stator 11 includes a lower insulation frame 11 a . a circuit board 11b and a steel sheet group 11c, the lower insulation frame 11a, the circuit board 11b and the silicon steel sheet group 11c are disposed on one of the shafts 13a of the base 13, when the stator 11 drives the fan wheel 12 to rotate The temperature of the electronic component on the silicon steel sheet group 11c or the circuit board 11b is increased, and the fan wheel 12 is rotated to generate a gas wall with respect to the base 13, so that the circuit board 11b is insulated from the lower portion. The air of a higher temperature between the shelves 11a is confined between the circuit board 11b and the lower insulating frame 11a, and cannot convect air with a lower temperature between the circuit board 11b and the susceptor 13, so that The temperature of the electronic component on the silicon steel sheet group 11c or the circuit board 11b continues to rise to prevent heat dissipation, thereby affecting the rotation efficiency of the heat dissipation fan 10 or causing damage to the electronic components on the circuit board 11b.

The main object of the present invention is to provide a fan stator which is disposed in a first space below the circuit board of the driving unit and a portion between the silicon steel sheet group and the circuit board by a gas passage disposed in the driving unit. Two spaces are connected.

A fan stator of the present invention comprises a driving unit, a silicon steel sheet set and a gas passage. The driving unit has a supporting member and a circuit board. The circuit board includes an upper surface, a lower surface and a through surface. An engagement hole of the lower surface, the connection hole has a closed ring wall, the circuit board is coupled to the support member, and has a first space under the circuit board, the silicon steel sheet set is disposed above the circuit board, the steel plate a gap is formed between the chip set and the circuit board, so that a second space is formed between the silicon steel sheet set, the circuit board and the support member, and the gas passage is disposed on the driving unit, and the gas passage is adjacent to the support member. And the bonding hole of the circuit board, the gas channel is connected to the first space under the circuit board and the second space between the silicon steel sheet group and the circuit board.

When the cooling fan is actuated, the temperature of the electronic component of the silicon steel sheet group or the circuit board is increased, thereby affecting the rotation performance of the cooling fan. The fan stator of the present invention is the first of the gas passages under the circuit board. a space and a second space between the set of silicon steel sheets and the circuit board, such that air can flow in the gas passage, the first space and the second space, to facilitate flow of air to the silicon steel sheet set or circuit The electronic components on the board dissipate heat.

Referring to FIG. 2, a first embodiment of the present invention is a fan stator 100 for driving a fan wheel 200. The fan stator 100 includes a driving unit 110 and a silicon steel sheet set 120. The driving unit 110 has a supporting member 111 and a circuit board 112. Referring to FIG. 3, in the embodiment, the supporting member 111 is a sleeve of the lower insulating frame X1. .

Referring to FIGS. 2 and 4 , the circuit board 112 is coupled to the support member 111 , and has a first space A1 under the circuit board 112 . The silicon steel sheet set 120 is disposed above the circuit board 112 . The silicon steel sheet set 120 . A gap G is formed between the circuit board 112 and the support member 111. The second space A2 is formed between the circuit board 112 and the support member 111. In the embodiment, the circuit board 112 has a joint. The support member 111 is bored in the engagement hole 112a of the circuit board 112.

Referring to FIG. 4, the fan stator 100 includes a gas passage P disposed in the driving unit 110. The gas passage P is adjacent to the supporting member 111 and the engaging hole 112a of the circuit board 112. The channel P communicates with the first space A1 located under the circuit board 112 and the second space A2 between the silicon steel sheet group 120 and the circuit board 112 to allow air to pass through the gas channel P and the first space A1. Flowing in the second space A2, in the embodiment, the gas passage P is a through hole 112d penetrating through an upper surface 112b and a lower surface 112c of the circuit board 112. The engagement hole 112a has a closed ring wall. 112e, referring to FIG. 2, the through hole 112d is a ring wall 112e recessed in the engaging hole 112a of the circuit board 112.

Referring to Figures 2 and 4, the fan stator 100 further includes an upper insulating frame X2 disposed between the lower insulating frame X1 and the upper insulating frame X2, a coil (not shown). The lower insulating frame X1, the silicon steel sheet set 120 and the upper insulating frame X2 are wound, and the coil is electrically connected to the circuit board 112. The fan stator 100 is mounted on a base 300, and the fan wheel 200 A hub 210 covers at least the upper insulating frame X2 and the silicon steel sheet set 120. When the fan stator 100 drives the fan wheel 200 to rotate, the electronic component on the silicon steel sheet set 120 or the circuit board 112 (not shown) The temperature rises because the gas passage P (that is, the through hole 112d) communicates between the first space A1 below the circuit board 112 and the second portion between the silicon steel sheet group 120 and the circuit board 112. The space A2 is such that the air of the higher temperature of the first space A1 can flow with the air of the lower temperature of the second space A2 to dissipate heat from the electronic components on the silicon steel sheet set 120 or the circuit board 112.

Referring to FIG. 5, in a second embodiment of the present invention, a fan stator 100 includes a driving unit 110, a silicon steel sheet set 120, and a gas passage P. The second embodiment differs from the first embodiment in the support. The member 111 contacts the upper surface 112b of the circuit board 112 such that air having a higher temperature of the first space A1 and a lower temperature of the second space A2 can pass through the gas passage P (ie, the through hole 112d). Flowing to dissipate heat from the electronic component on the silicon steel sheet set 120 or the circuit board 112.

Referring to FIGS. 6 and 8, in a third embodiment of the present invention, a fan stator 100 includes a driving unit 110, a silicon steel sheet set 120, and a gas passage P. The driving unit 110 has a supporting member 111 and a circuit. The board 112 is coupled to the support member 111. In the embodiment, the circuit board 112 has an engagement hole 112a. The engagement hole 112a has a closed annular wall 112e. The support member 111 is disposed in the board. The engagement hole 112a of the circuit board 112.

Referring to FIG. 8 , a first space A1 is disposed under the circuit board 112 . The silicon steel sheet set 120 is disposed above the circuit board 112 . The silicon steel sheet set 120 , the circuit board 112 and the support member 111 are formed. There is a second space A2.

Referring to FIGS. 7 and 8, the third embodiment differs from the first embodiment in that the support member 111 has a ring wall 111a, a receiving space 111b surrounded by the ring wall 111a, and a ring wall 111a disposed on the ring wall 111a. a venting space 111b, the accommodating space 111b is connected to the accommodating space 111b and the second space A2. The gas channel P is formed by the accommodating space 111b and the air hole 111c. The gas passage P is adjacent to the support member 111 and the engagement hole 112a of the circuit board 112. In this embodiment, the annular wall 111a has an end edge 111d, and the air hole 111c is recessed in the end edge 111d. The sleeve 111b can be provided with a sleeve 130 and a bearing 140 for pivoting a shaft 220 of the fan wheel 200 to the bearing 140.

Referring to FIG. 8, when the fan stator 100 drives the fan wheel 200 to rotate, the temperature of the electronic components (not shown) on the silicon steel sheet set 120 or the circuit board 112 rises due to the gas passage P (ie, The first space A1 connected to the receiving space 111b and the air hole 111c under the circuit board 112 and the second space A2 located between the silicon steel sheet group 120 and the circuit board 112, so that the The air having a higher temperature of the first space A1 and the air having a lower temperature of the second space A2 may flow through the accommodating space 111b and the gas passage P formed by the air hole 111c to the pair of silicon steel sheets 120 or The electronic components on the circuit board 112 dissipate heat.

Referring to FIG. 9, a fourth embodiment of the present invention, a fan stator 100 includes a driving unit 110, a silicon steel sheet set 120, and a gas passage P. The fourth embodiment differs from the third embodiment in that the support The member 111 contacts the upper surface 112b of the circuit board 112, such that the air having a higher temperature of the first space A1 and the air having a lower temperature of the second space A2 can pass through the gas passage P (ie, the accommodating space) 111b and the air hole 111c are configured to generate a flow to dissipate heat from the electronic component on the silicon steel sheet set 120 or the circuit board 112.

The scope of the present invention is defined by the scope of the appended claims, and any changes and modifications made by those skilled in the art without departing from the spirit and scope of the invention are within the scope of the present invention. .

10‧‧‧ cooling fan
11‧‧‧ Stator
11a‧‧‧Insulated frame
11b‧‧‧Circuit board
11c‧‧‧矽Steel sheet group
12‧‧‧fan wheel
13‧‧‧Base
13a‧‧‧ shaft column
100‧‧‧fan stator
110‧‧‧ drive unit
111‧‧‧Support
111a‧‧‧Circle wall
111b‧‧‧ accommodating space
111c‧‧‧ vent
111d‧‧‧End edge
112‧‧‧Circuit board
112a‧‧‧Join hole
112b‧‧‧Upper surface
112c‧‧‧ lower surface
112d‧‧‧through hole
112e‧‧‧Circle
120‧‧‧矽Steel sheet group
130‧‧‧ bushings
140‧‧‧ bearing
200‧‧‧fan wheel
210‧‧·wheels
220‧‧‧ shaft
300‧‧‧Base
A1‧‧‧First space
A2‧‧‧Second space
G‧‧‧ gap
P‧‧‧ gas passage
X1‧‧‧ lower insulation frame
X2‧‧‧Insulation frame

Figure 1: A cross-sectional view of a conventional heat dissipating fan. Fig. 2 is an exploded perspective view showing a first embodiment of a fan stator of the present invention. Fig. 3 is a perspective view of the lower insulating frame of the first embodiment of the present invention. Fig. 4 is a cross-sectional view showing the fan stator and the fan wheel combination of the first embodiment of the present invention. Fig. 5 is a cross-sectional view showing a combination of a fan stator and a fan wheel according to a second embodiment of the present invention. Figure 6 is a perspective exploded view of a third embodiment of a fan stator of the present invention. Figure 7 is a perspective view of a lower insulating frame of a third embodiment of the present invention. Figure 8 is a cross-sectional view showing a combination of a fan stator and a fan wheel of a third embodiment of the present invention. Figure 9 is a cross-sectional view showing a combination of a fan stator and a fan wheel according to a fourth embodiment of the present invention.

100‧‧‧fan stator

110‧‧‧ drive unit

111‧‧‧Support

111a‧‧‧Circle wall

111b‧‧‧ accommodating space

111c‧‧‧ vent

111d‧‧‧End edge

112‧‧‧Circuit board

112a‧‧‧Join hole

120‧‧‧矽Steel sheet group

130‧‧‧ bushings

140‧‧‧ bearing

200‧‧‧fan wheel

210‧‧·wheels

220‧‧‧ shaft

A1‧‧‧First space

A2‧‧‧Second space

P‧‧‧ gas passage

X1‧‧‧ lower insulation frame

X2‧‧‧Insulation frame

Claims (9)

A fan stator includes: a driving unit having a supporting member and a circuit board, the circuit board including an upper surface, a lower surface, and an engaging hole extending through the upper surface and the lower surface, the engaging hole having a closed a circuit board, the circuit board is coupled to the support member, and has a first space under the circuit board, the support member has a ring wall, a receiving space surrounded by the ring wall, and a vent hole disposed in the ring wall The accommodating space is connected to the first space; a steel sheet group is disposed above the circuit board, and a gap is formed between the silicon steel sheet group and the circuit board, so that the silicon steel sheet group, the circuit board and the supporting member Forming a second space therebetween, the air hole of the support member communicates with the accommodating space and the second space; and a gas passage is disposed at the driving unit, the gas passage is adjacent to the support member and the circuit board An engagement hole, the gas passage is connected to the first space below the circuit board and the second space between the steel sheet group and the circuit board, the gas passage is formed by the accommodation space and the air hole to make. The fan stator of claim 1, wherein the gas passage is a through hole penetrating the upper surface and the lower surface of the circuit board. The fan stator according to claim 2, wherein the through hole is a ring wall recessed in the engaging hole of the circuit board. The fan stator of claim 2, wherein the support member is disposed through the engagement hole of the circuit board. The fan stator of claim 2, wherein the support member contacts the upper surface of the circuit board. The fan stator of claim 1, wherein the ring wall has an end The rim is recessed in the end edge. The fan stator of claim 1, wherein the support member is disposed through the engagement hole of the circuit board. The fan stator of claim 1, wherein the support member contacts the upper surface of the circuit board. The fan stator of claim 1, wherein the support member is a sleeve of a lower insulation frame.