TWI825884B - Motor stator, motor and fan - Google Patents

Abstract

The invention relates to a motor stator, a motor and a fan. The motor stator includes: a base, a winding sleeve, a coil and a digital conductor. The base includes: a first surface, a second surface, at least a first ring wall and a plurality of bosses. At least one first ring wall is disposed on the side of the first surface, and the at least one first ring wall has at least a first ring wall height. Several bosses are provided on the first surface. Each boss has a hollow portion that penetrates the first surface and the second surface. Each boss has a boss height, and the boss height is greater than the at least one first surface. Ring wall height. Each of the guide members passes through the hollow portion and extends from the first surface of the base to the second surface of the base. The at least one first ring wall of the stator of the motor of the present invention can prevent water from entering the base of the motor from the outside, and the use of the bosses can further prevent water from flowing from the base of the motor to the guides.

Description

Motor stator, motor and fan

The invention relates to a motor stator, a motor and a fan.

At present, the base of the stator of the conventional fan motor is used to set the stator coil. The end wires of the stator coil pass through the base, so that the end wires are electrically connected to the circuit board of the motor. However, water can easily enter the base from the outside. , and lead to a short circuit of the terminal wires, causing damage to the motor, so it is necessary to improve it.

The present invention provides a stator for a motor. In one embodiment, the stator of the motor includes: a base, a winding sleeve, a coil and a number conductor. The base includes: a first surface, a second surface, at least a first ring wall and a plurality of bosses. The second surface is opposite to the first surface. At least one first ring wall is disposed on the side of the first surface, and the at least one first ring wall has at least a first ring wall height. Several bosses are provided on the first surface. Each boss has a hollow portion that penetrates the first surface and the second surface. Each boss has a boss height, and the boss height is greater than the at least one first surface. Ring wall height. The winding sleeve is arranged on the first surface of the base. The coil is arranged on the winding sleeve. Each of the guide members passes through the hollow portion and extends from the first surface of the base to the second surface of the base.

The invention provides a motor. In one embodiment, the motor includes: a stator, a rotor and a circuit board as described above. The rotor is arranged around the stator. The circuit board is disposed on the second surface of the base of the stator, and the circuit board is electrically connected to the stator.

The invention provides a fan. In one embodiment, the fan includes: a motor as described above and an impeller. The impeller is arranged around the rotor.

Utilizing the at least one first ring wall of the base of the stator of the motor of the present invention can prevent water from entering the base of the stator of the motor from the outside, and using the plurality of bosses can further prevent water from flowing from the base of the stator of the motor to the base of the motor. And other guide parts. Furthermore, since the height of the boss is greater than the height of the at least one ring wall, if there is water accumulation in the base of the stator of the motor, the water can be discharged from the at least one first ring wall to prevent the water from flowing to the guide members.

FIG. 1 shows a first perspective perspective view of the stator of the motor of the present invention. Figure 2 shows an exploded schematic diagram of the stator of the motor of the present invention. FIG. 3 shows a second perspective perspective view of the stator of the motor of the present invention. Referring to FIGS. 1 to 3 , the stator 1 of the motor of the present invention includes: a base 10 , a winding sleeve 20 , a coil 30 and a digital conductor 40 . The base 10 includes: a first surface 11 , a second surface 12 , at least one first ring wall 13 and several bosses 14 . The stator 1 of the motor can be applied to a motor, and the motor can be installed in a fan. The fan of the present invention can be installed in equipment or systems such as personal computers and electronic devices to provide heat dissipation, but is not limited to the above.

In one embodiment, the second surface 12 of the base 10 is opposite to the first surface 11 . At least one first ring wall 13 is disposed on the side of the first surface 11 , and the at least one first ring wall 13 has at least a first ring wall height Hw1, Hw2. Several bosses 14 are provided on the first surface 11. Each boss 14 has a hollow portion 141 that penetrates the first surface 11 and the second surface 12. Each boss 14 has a boss height Hp. The platform height Hp is greater than the at least one first ring wall height Hw1, Hw2. The winding sleeve 20 is disposed on the first surface 11 of the base 10 . The coil 30 is arranged on the winding sleeve 20 . Each of the guide members 40 passes through the hollow portion 141 and extends from the first surface 11 of the base 10 to the second surface 12 of the base 10 .

In one embodiment, the at least one first surrounding wall 13 includes a first inner surrounding wall 131 and a first outer surrounding wall 132. The first inner surrounding wall 131 has a first inner surrounding wall height Hw1, and the first inner surrounding wall 131 has a first inner surrounding wall height Hw1. An outer ring wall 132 has a first outer ring wall height Hw2, and the first inner ring wall height Hw1 is greater than the first outer ring wall height Hw2. Therefore, by utilizing the height Hw1 of the first inner ring wall to be greater than the height Hw2 of the first outer ring wall, water can be further prevented from entering the interior of the base 10 of the stator 1 from the outside.

In one embodiment, the first outer ring wall 132 has at least one notch 133 extending from a top edge of the first outer ring wall 132 toward the first surface 11 , and the notch 133 has a depth Hd, and the depth Hd Less than the first outer ring wall height Hw2. In one embodiment, there is a distance D between the first inner ring wall 131 and the first outer ring wall 132 . Therefore, by utilizing the gap 133 , if there is water accumulation between the first inner ring wall 131 and the first outer ring wall 132 , and when there is too much water, the accumulated water can be discharged through the gap 133 .

In one embodiment, the winding sleeve 20 is used to wind the coil 30 , and the conductive members 40 are disposed on the winding sleeve 20 . In one embodiment, each conductive member 40 has an extension post 41, and the coil 30 includes a plurality of terminal wires 31. The terminal wires 31 can be externally connected to a circuit board and electrically connected to the circuit board. Each end wire 31 is wound around the extension post 41 . In one embodiment, the extension posts 41 of the guide members 40 and the winding sleeve 20 are integrally formed, and may be made of plastic or other materials. In one embodiment, a bottom end of the extension post 41 has a notch 43 for hooking the end wire 31. The extension post 41 of the guide member 40 and the wrapped end wire 31 pass through the hollow. When the portion 141 is installed, the end wire 31 will not fall off from the extension post 41 .

Therefore, the at least one first ring wall 13 of the base 10 of the stator 1 of the motor of the present invention can be used to prevent water from entering the base 10 of the stator 1 of the motor, and the plurality of bosses 14 can also be used to further prevent water from entering the base 10 of the stator 1 of the motor. The base 10 of the stator 1 of the motor flows to the conductive members 40 to prevent the terminal wires 31 wound around the conductive members 40 from short-circuiting, thus avoiding the short-circuit of the coils 30 . Furthermore, since the height Hp of the boss is greater than the height Hw1, Hw2 of the at least one ring wall, if there is water accumulation in the base 10 of the motor, the water can be discharged from the at least one first ring wall 13 to avoid water accumulation causing damage to the guides. If the terminal wire 31 wound by 40 is short-circuited, the coil 30 can be prevented from being short-circuited.

In one embodiment, each end wire is electrically connected to the extension post of each conductive member, that is, the end wires of the coil are directly electrically connected to the extension post of the conductor member. , or the end wires of the coil are respectively welded to the extension posts of the conductive members, the extension posts of the conductive members are made of conductive material or conductive elements, and the conductive members pass through the hollow part From the first surface to the second surface, the conductive members can be electrically connected to the circuit board on the second surface.

In one embodiment, the coil includes a plurality of terminal wires, and the plurality of terminal wires are the conductive members. That is, when the terminal wire of the coil is large or thick enough, the terminal wire can be directly used as a conductive member without the need for the extension column of the above embodiment, and can be connected from the first surface to the first surface through the hollow part. A second surface on which terminals of the coil can be electrically connected to the circuit board.

FIG. 4 shows a partially enlarged schematic view of the stator of the motor of the present invention from a second perspective. Referring to FIGS. 3 and 4 , in one embodiment, the base 10 of the stator 1 further includes a plurality of receiving seats 122 disposed on the second surface 12 to receive the end wires 31 . Each of the sockets 122 includes a wire trough, so that the terminal wire 31 is disposed in the wire trough. The terminal wire 31 can be connected to a circuit board through the socket 122 and electrically connected to the circuit board. In one embodiment, the base 10 of the stator 1 further includes a plurality of pins 121, which are respectively provided on the receiving seats 122 to electrically connect the terminal wires 31 and a circuit board. The latch 121 can be used to fix the terminal wire 31 in the wire groove of the socket 122 to prevent the terminal wire 31 from falling off the socket 122 . In one embodiment, the plug 121 can be a conductive element or a conductive material, and the plug 121 can be electrically connected to the circuit board, so that the coil is electrically connected to the circuit board.

Figure 5 shows a partial cross-sectional view of the second ring wall and the cover plate of the stator base of the motor of the present invention. Referring to FIGS. 3 to 5 , in one embodiment, the base 10 of the stator 1 further includes at least a second ring wall 16 disposed on the side of the second surface 12 . The at least one second surrounding wall 16 includes a second inner surrounding wall 161 and a second outer surrounding wall 162. The second inner surrounding wall 161 has a second inner surrounding wall height Hw3, and the second outer surrounding wall 162 has A second outer ring wall height Hw4, the second inner ring wall height Hw3 is greater than the second outer ring wall height Hw4. Therefore, by utilizing the height Hw3 of the second inner ring wall to be greater than the height Hw4 of the second outer ring wall, water can be prevented from entering the inside of the second surface 12 of the base 10 of the stator 1 from the outside.

In one embodiment, there is a groove 163 between the second inner ring wall 161 and the second outer ring wall 162 . The base 10 of the stator 1 further includes a waterproof ring 164 disposed in the groove 163 to further prevent water from entering the second surface 12 of the base 10 of the stator 1 from the outside. In one embodiment, the waterproof ring 164 is made of rubber or silicone.

FIG. 6 shows a first perspective perspective view of another embodiment of the stator of the motor of the present invention. Referring to FIG. 6 , in one embodiment, the base 10 of the stator 1 further includes bushings 142 , which are respectively provided in the hollow portions 141 of each boss 14 . In one embodiment, the bushing 142 is made of rubber or silicone. Therefore, when the guide members 40 pass through the hollow part 141 , the bushings 142 are disposed between the guide members 40 and the hollow part 141 to prevent water from flowing through the guide members 40 and the hollow part 141 . The hollow portion 141 flows to the second surface 12, causing a short circuit on the components of the circuit board.

Figure 7 shows a partial cross-sectional view of the motor of the present invention. Referring to FIG. 7 , in one embodiment, the base 10 of the stator 1 further includes a protective cover 17 disposed on the first surface 11 , that is, on the first surface 11 , the protective cover 17 is a protrusion. Relative to the second surface 12 , the protective cover 17 has a receiving groove 171 for receiving a Hall element 61 . The Hall element 61 is arranged on the circuit board 6 . In order to accommodate the height of the Hall element 61 , the height of the protective cover 17 may be higher than the height of the first inner ring wall 131 .

Figure 8 shows a schematic cross-sectional perspective view of the motor of the present invention. Referring to Figures 1, 2, 7 and 8, in one embodiment, the motor 7 of the present invention includes: the stator 1, a rotor 5 and a circuit board 6 as described above. The rotor 5 is arranged around the stator 1 . The circuit board 6 is disposed on the second surface 12 of the base 10 of the stator 1 , and the circuit board 6 is electrically connected to the stator 1 .

In one embodiment, the end wires 31 of the coil 30 of the stator 1 are electrically connected to the circuit board 6 on the second surface 12 of the base 10 of the stator 1, so that the circuit board 6 is electrically connected to the stator. 1.

In one embodiment, the rotor 5 has a rotating cover 51 and a magnetic component 52 . The rotating cover 51 covers the stator 1 . The magnetic component 52 is disposed on the rotating cover 51 and corresponds to the stator 1 . In one embodiment, the rotating cover 51 further includes an extension portion 511 extending downward from a bottom edge of the rotating cover 51. The extension portion 511 is disposed on the first inner ring wall 131 and the first outer wall. Within the distance D between the surrounding walls 132. The extension 511 can further prevent water from entering the first surface 11 of the base 10 of the stator 1 from the outside.

Referring to FIGS. 3 , 4 , 7 and 8 , in one embodiment, the end wires 31 of the receiving seats 122 of the base 10 of the stator 1 are electrically connected to the circuit board 6 . In one embodiment, the circuit board 6 is disposed in the second inner ring wall 161 of the base 10 of the stator 1 .

Figure 9 shows a schematic three-dimensional view of the rubber plug of the motor of the present invention. Figure 11 shows a schematic three-dimensional view of the fan of the present invention. Referring to FIGS. 8 , 9 and 11 , in one embodiment, the motor 7 of the present invention further includes a cover 71 , which is disposed under the circuit board 6 . The cover 71 includes a rubber plug 711 , used to cover a power cord 72, the rubber plug 711 is disposed on one side of the cover 71, the rubber plug 711 has an inner ring wall 712, allowing the power cord 72 to pass through, the inner ring wall 712 has Number of ring-shaped protrusions 713. In one embodiment, the annular protrusions 713 are semicircular. Utilizing the annular protrusion 713 of the rubber plug 711 can reduce the friction area, making it easy to assemble the power cord 72 to the rubber plug 711, and improve the waterproof performance to prevent water from flowing from the power cord to the circuit board 6, causing damage to the circuit board 6 .

Figure 10 shows a schematic cross-sectional perspective view of the fan of the present invention. Referring to Figures 10 and 11, in one embodiment, the fan 9 of the present invention includes the motor 7 and an impeller 8 as described above. The impeller 8 is arranged around the rotor 5 . The impeller 8 includes a plurality of blades 81 and is disposed on the rotating cover 51 of the rotor 5 .

The above embodiments only illustrate the principle and effect of the present invention, but do not limit the present invention. Those skilled in the art may make modifications and changes to the above embodiments without departing from the spirit of the invention. The scope of rights of the present invention shall be as listed in the patent application scope described below.

1: stator 5:Rotor 6:Circuit board 7: Motor 8: Impeller 9:Fan 10: Base 11: First surface 12: Second surface 13:The first ring wall 14:Boss 16:Second ring wall 17: Protective cover 20: Winding sleeve 30: coil 31:End line 40: Guide parts 41:Extended column 43: missing slot 51: Rotate the cover 52:Magnetic components 61: Hall element 71:Cover 72:Power cord 81: blade 121:Latch 122: receiving seat 131:First inner ring wall 132:First outer ring wall 133: Gap 141: Hollow part 142: Bushing 161:Second inner ring wall 162:Second outer ring wall 163: Groove 164: Waterproof ring 171: Accommodation slot 511:Extension 711: Rubber stopper 712: Inner ring wall 713: Annular protrusion D: distance HD: depth Hw1: Height of the first inner ring wall Hw2: Height of the first outer ring wall Hw3: Height of the second inner ring wall Hw4: Height of the second outer ring wall Hp: height of boss

Figure 1 shows a first perspective perspective view of the stator of the motor of the present invention;

Figure 2 shows an exploded schematic diagram of the stator of the motor of the present invention;

Figure 3 shows a second perspective perspective view of the stator of the motor of the present invention;

Figure 4 shows a partially enlarged schematic view of the stator of the motor of the present invention from a second perspective;

Figure 5 shows a partial cross-sectional schematic view of the second ring wall of the base of the stator of the motor of the present invention and the cover plate of the motor;

Figure 6 shows a first perspective perspective view of another embodiment of the stator of the motor of the present invention;

Figure 7 shows a partial cross-sectional schematic diagram of the motor of the present invention;

Figure 8 shows a cross-sectional perspective view of the motor of the present invention;

Figure 9 shows a schematic three-dimensional view of the rubber plug of the motor of the present invention;

Figure 10 shows a cross-sectional perspective view of the fan of the present invention; and

Figure 11 shows a schematic three-dimensional view of the fan of the present invention.

1: stator

10: Base

11: First surface

13:The first ring wall

14:Boss

20: Winding sleeve

30: coil

40: Guide parts

131:First inner ring wall

132:First outer ring wall

133: Gap

141: Hollow part

D: distance

HD: depth

Hw1: Height of the first inner ring wall

Hw2: Height of the first outer ring wall

Hp: boss height

Claims (26)

A stator of a motor, including: a base, including: a first surface, a second surface, at least a first ring wall and a plurality of bosses; the second surface is relative to the first surface; the at least a first ring The wall is provided on the side of the first surface, and the at least one first ring wall has at least a first ring wall height; the plurality of bosses are provided on the first surface, and each boss has a hollow portion that penetrates the first ring wall. A surface and the second surface, each of the bosses has a boss height, the boss height is greater than the height of the at least one first surrounding wall; a winding sleeve is provided on the first surface of the base; a coil, A number of conductors are provided on the winding sleeve, each of the conductors passes through the hollow part and extends from the first surface of the base to the second surface of the base, wherein the conductors are provided on the winding. A wire sleeve, wherein each conductor has an extension post, the coil includes a plurality of end wires, each of the end wires is wound around the extension post; and a number of receiving seats are provided on the second surface of the base to accommodate the Waiting line. The stator of the motor of claim 1, wherein the at least one first ring wall includes a first inner ring wall and a first outer ring wall, the first inner ring wall has a first inner ring wall height, and the first The outer ring wall has a first outer ring wall height, and the first inner ring wall height is greater than the first outer ring wall height. The stator of the motor of claim 2, wherein the first outer ring wall has at least one gap extending from a top edge of the first outer ring wall toward the first surface, and the gap has a depth, and the depth is less than The height of the first outer ring wall. The stator of the motor of claim 2, wherein there is a distance between the first inner ring wall and the first outer ring wall. The stator of the motor according to claim 1 further includes a plurality of bushings respectively provided in the hollow portion of each boss. For example, the stator of the motor of claim 5, wherein the bushings are made of rubber or silicone. For the stator of the motor of claim 1, each of the end wires is electrically connected to the extension post of each of the conductive members, and the extension post of each of the conductive members is made of conductive material. For the stator of the motor of claim 1, a bottom end of the extension column has a slot for hooking the end wire. For example, the stator of the motor of claim 1 also includes a plurality of pins respectively provided on the sockets to electrically connect the terminal wires and a circuit board. The stator of the motor of claim 1 further includes at least a second ring wall disposed on the side of the second surface. The stator of the motor of claim 10, wherein the at least one second ring wall includes a second inner ring wall and a second outer ring wall, the second inner ring wall has a second inner ring wall height, the second outer ring wall has a second outer ring wall height, the second inner ring wall height is greater than the second The height of the outer ring wall. The stator of the motor of claim 11, wherein there is a groove between the second inner ring wall and the second outer ring wall. The stator of the motor of claim 12 further includes a waterproof ring disposed in the groove. The stator of the motor of claim 1 further includes a protective cover disposed on the first surface, and relative to the second surface, the protective cover has a receiving groove for receiving a Hall element. The stator of the motor of claim 1, wherein the at least one first ring wall and the plurality of bosses are integrally formed. A motor, including: a stator as claimed in claims 1 to 15; a rotor disposed around the stator; a circuit board disposed on the second surface of the base of the stator, the circuit board electrically connected to the stator ; And a cover plate, arranged under the circuit board, the cover plate includes a rubber plug to cover a power cord, the rubber plug is arranged on one side of the cover plate, the rubber plug has an inner ring wall , the inner annular wall has several annular protrusions. The motor of claim 16, wherein the coil of the stator includes a plurality of terminal wires, and the terminal wires are electrically connected to the circuit board. The motor of claim 16, wherein the conductive members are electrically connected to the circuit board. The motor of claim 16, wherein the circuit board further includes a Hall element, and the base of the stator further includes a protective cover, which is disposed on the first surface of the base, and relative to the second surface, the protective cover has A receiving groove is used to receive the Hall element. The motor of claim 16, wherein the rotor has a rotating cover and a magnetic element, the rotating cover covers the stator, and the magnetic element is disposed on the rotating cover corresponding to the stator. The motor of claim 20, wherein the rotating cover further includes an extension extending downward from a bottom edge of the rotating cover, and the at least one first ring wall includes a first inner ring wall and a first outer ring wall. The ring wall has a distance between the first inner ring wall and the first outer ring wall, and the extension is provided within the distance between the first inner ring wall and the first outer ring wall. The motor of claim 16, wherein the base of the stator further includes a plurality of sockets arranged on the second surface of the base, each of the conductive members has an extension column, the coil includes a plurality of terminal wires, and the sockets Used to accommodate the terminal wires of the coil, and the terminal wires of the sockets are electrically connected to the circuit board. The motor of claim 16, wherein the base of the stator further includes at least a second ring wall, Disposed on the side of the second surface, the circuit board is disposed in the second inner ring wall of the base of the stator. Such as the motor of claim 16, wherein the annular protrusions are semicircular. A fan includes: a motor as claimed in claim 16; and an impeller arranged around the rotor. The fan of claim 25, wherein the rotor has a rotating cover and a magnetic element, the rotating cover covers the stator, the magnetic element is disposed on the rotating cover corresponding to the stator, and the impeller includes a plurality of blades, Set on the rotating cover.

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