Motor and fan

Abstract

The utility model provides a motor and a fan. The motor comprises a bearing seat, a protective cover, a sealing piece, a circuit board, a stator, a shaft tube and a rotor. The bearing seat is provided with a wire outlet groove part. The protective cover is arranged above the bearing seat. The seal includes a first portion. The first part of the sealing piece is arranged between the wire outlet groove part of the bearing seat and the protective cover, and the first part of the sealing piece, the protective cover and the bearing seat form a closed space. The circuit board is arranged in the closed space. The stator is arranged on the protective cover. The shaft tube penetrates into the bearing seat, the protective cover and the stator. The rotor is pivoted to the shaft tube. According to the motor provided by the utility model, the circuit board is arranged in the closed space formed by the first part of the sealing element, the protective cover and the bearing seat, so that moisture-proof, dust-proof and salt mist-proof effects can be achieved.

Description

Technical Field

[0001] The utility model relates to a motor and a fan, and more specifically, to a motor and a fan that can prevent moisture, dust and salt spray. Background Art

[0002] The motors of the prior art are driven and controlled through a circuit board. Once the circuit board is affected by moisture or contaminated, the circuit may be corroded and short-circuited, resulting in abnormal operation of the motor. In order to prevent the circuit board from being affected by moisture or contaminated, the prior art has carried out vacuum coating protection for the circuit board. However, vacuum coating requires the use of expensive vacuum coating equipment, so the implementation cost is high. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a motor and a fan with the effects of moisture prevention, dust prevention and salt spray prevention.

[0004] To achieve the above object, the utility model provides a motor, which includes a base, a protective cover, a seal, a circuit board, a stator, a shaft tube and a rotor. The base has an outgoing line groove portion; the protective cover is arranged above the base; the seal includes a first part, and the first part of the seal is arranged between the outgoing line groove portion of the base and the protective cover, and the first part of the seal and the protective cover and the base form a closed space; the circuit board is arranged in the closed space; the stator is arranged on the protective cover; the shaft tube penetrates through the base, the protective cover and the stator; the rotor is pivotally connected to the shaft tube.

[0005] For the motor as described above, wherein the first part of the seal contacts the upper surface of the outgoing line groove portion and the protective cover.

[0006] For the motor as described above, wherein the seal further includes a second part, the base further has a first accommodation groove and a first annular wall surrounding the first accommodation groove, the protective cover has a second accommodation groove and a second annular wall surrounding the second accommodation groove, the second part of the seal is arranged between the first annular wall of the base and the second annular wall of the protective cover, and the second part of the seal and the first part of the seal and the protective cover and the base form the closed space.

[0007] For the motor as described above, wherein the second annular wall of the protective cover has a notch, the notch faces the outgoing line groove portion of the base, and the first part of the seal closes the notch of the second annular wall.

[0008] For the motor as described above, wherein the volume of the first part of the seal is smaller than the volume of the second part of the seal.

[0009] The motor as described above, wherein the motor further includes a wire, the wire passing through the gap of the second ring wall and electrically connected to the circuit board.

[0010] The motor as described above, wherein, in a cross-sectional view, a width of the first portion of the seal is greater than a width of the second portion of the seal.

[0011] The motor as described above, wherein, in a cross-sectional view, a height of the first portion of the seal is smaller than a height of the second portion of the seal.

[0012] The motor as described above, wherein the protective cover has a cover plate and a hollow protrusion, the hollow protrusion is arranged at the center of the cover plate and protrudes in a direction opposite to the seat, the shaft tube passes through the hollow protrusion of the protective cover, and the shaft tube is tightly fitted with the hollow protrusion.

[0013] In the motor as described above, the stator includes a lower winding sleeve, and the protective cover further has an upper ring portion and an annular groove, the upper ring portion surrounds the hollow convex portion, the annular groove is located between the upper ring portion and the hollow convex portion, and the lower winding sleeve is arranged in the annular groove.

[0014] In the motor as described above, the top surface of the lower winding sleeve is flush with the top surface of the hollow convex portion and the top surface of the upper ring portion.

[0015] In the motor as described above, the stator contacts the hollow convex portion and the upper ring portion.

[0016] The motor as described above, wherein the outer peripheral surface of the stator is aligned with the outer surface of the upper ring portion.

[0017] The motor as described above, wherein the lower winding sleeve contacts the inner surface of the upper ring portion.

[0018] The motor as described above, wherein the lower winding sleeve contacts the outer surface of the hollow protrusion.

[0019] The motor as described above, wherein the cover plate has a top surface, a plurality of protrusions protruding from the top surface, and a slot located between two adjacent protrusions, and the lower winding sleeve has a plurality of lower extensions, at least one of the plurality of lower extensions being confined in the slot.

[0020] In the motor as described above, the cover plate has a top surface and a groove recessed from the top surface, the lower winding sleeve has a plurality of lower extensions, and at least one of the plurality of lower extensions is confined in the groove.

[0021] The motor as described above, wherein the stator includes a conducting member that penetrates through the protective cover and the circuit board, and the conducting member is electrically connected to the circuit board.

[0022] The motor as described above, wherein the motor includes a sealing washer, the protective cover has a cover plate, the sealing washer is disposed between the cover plate of the protective cover and the circuit board, and the conducting member passes through the sealing washer.

[0023] The motor as described above, wherein the cover plate has an opening, the sealing washer is disposed around the opening of the cover plate, and the conducting member passes through the opening of the cover plate.

[0024] The motor as described above, wherein the sealing member further includes a second part, the bearing seat further has a first accommodation groove and a first annular wall surrounding the first accommodation groove, the first annular wall has a groove, and the second part of the sealing member is disposed in the groove of the first annular wall.

[0025] The motor as described above, wherein the protective cover has a second accommodation groove and a second annular wall surrounding the second accommodation groove, and a part of the second annular wall of the protective cover is disposed in the groove of the first annular wall and is covered by the second part of the sealing member.

[0026] The motor as described above, wherein the sealing member further includes a third part, the wire outlet groove part has an upper surface and a groove recessed from the upper surface, and the third part of the sealing member is disposed in the groove of the wire outlet groove part.

[0027] The motor as described above, wherein the third part of the sealing member contacts the first part of the sealing member.

[0028] The motor as described above, wherein the material of the third part of the sealing member is different from the material of the first part of the sealing member.

[0029] The motor as described above, wherein the bearing seat further has a first accommodation groove and a first annular wall surrounding the first accommodation groove, the protective cover has a second accommodation groove and a second annular wall surrounding the second accommodation groove, and the second annular wall of the protective cover is sleeved outside the first annular wall of the bearing seat.

[0030] The motor as described above, wherein the outer surface of the second annular wall is aligned with the outer peripheral surface of the bearing seat.

[0031] The motor as described above, wherein the protective cover further has a cover plate, the sealing member further includes a second part, and the second part of the sealing member is disposed between the cover plate of the protective cover and the first annular wall of the bearing seat.

[0032] The motor as described above, wherein the first annular wall of the bearing seat has a top surface and an annular groove recessed from the top surface, and the second part of the seal is disposed in the annular groove of the first annular wall.

[0033] The motor as described above, wherein the second part of the seal includes sealant or a sealing ring.

[0034] The motor as described above, wherein the first part of the seal includes sealant or a rubber plug.

[0035] The motor as described above, wherein electronic components are disposed on the circuit board, and the protective cover has a relief groove, and the electronic components are located in the relief groove of the protective cover.

[0036] The present utility model further provides a fan, including the motor as described above and a plurality of blades. The blades are connected to the rotor of the motor.

[0037] In the motor of the present utility model, the circuit board is disposed in a closed space formed by the first part of the seal, the protective cover and the bearing seat, which can achieve the effects of moisture-proof, dust-proof and salt mist-proof, and no vacuum coating equipment is required during the protection process, which can reduce the protection cost of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] When read in conjunction with the accompanying drawings, the manner in which some embodiments of the present utility model can be understood from the following detailed description. It should be noted that the various structures may not be drawn to scale, and the dimensions of the various structures may be increased or decreased arbitrarily for the sake of clarity of discussion.

[0039] Figure 1 Showing an exploded perspective view of a motor according to some embodiments of the present utility model.

[0040] Figure 2 Showing an assembled perspective view of a motor according to some embodiments of the present utility model.

[0041] Figure 3 Showing a cross-sectional view of a motor according to some embodiments of the present utility model.

[0042] Figure 4A Showing a perspective view of a protective cover according to some embodiments of the present utility model.

[0043] Figure 4B Showing another perspective view of a protective cover according to some embodiments of the present utility model.

[0044] Figure 5 Showing a cross-sectional view of a motor according to some embodiments of the present utility model.

[0045] Figure 6Shows a cross-sectional view of a motor according to some embodiments of the present utility model.

[0046] Figure 7 Shows a three-dimensional assembly view of a fan according to some embodiments of the present utility model.

[0047] Figure 8 Shows a cross-sectional view of a fan according to some embodiments of the present utility model.

[0048] Figure 9 Shows a schematic diagram of one or more stages according to some embodiments of a method for manufacturing a motor of the present utility model.

[0049] Figure 10 Shows a schematic diagram of one or more stages according to some embodiments of a method for manufacturing a motor of the present utility model.

[0050] Figure 11 Shows a schematic diagram of one or more stages according to some embodiments of a method for manufacturing a motor of the present utility model.

[0051] Figure 12 Shows a schematic diagram of one or more stages according to some embodiments of a method for manufacturing a motor of the present utility model.

[0052] Figure 13 Shows a schematic diagram of one or more stages according to some embodiments of a method for manufacturing a motor of the present utility model.

[0053] Figure 14 Shows a schematic diagram of one or more stages according to some embodiments of a method for manufacturing a motor of the present utility model.

[0054] Figure 15 Shows a schematic diagram of one or more stages according to some embodiments of a method for manufacturing a motor of the present utility model.

[0055] Figure 16 Shows a schematic diagram of one or more stages according to some embodiments of a method for manufacturing a motor of the present utility model.

[0056] Figure 17 Shows a schematic diagram of one or more stages according to some embodiments of a method for manufacturing a motor of the present utility model.

[0057] Figure 18 Shows a schematic diagram of one or more stages according to some embodiments of a method for manufacturing a motor of the present utility model.

[0058] Figure 19 Shows a schematic diagram of one or more stages according to some embodiments of a method for manufacturing a motor of the present utility model.

[0059] Figure 20 Schematic diagrams showing one or more stages of a method for manufacturing a motor according to the present utility model.

[0060] Description of reference numerals

[0061] 1. Motor;

[0062] 8. Fan;

[0063] 10. Holder;

[0064] 10'. Housing;

[0065] 11. Central tube part;

[0066] 12. First accommodation groove;

[0067] 14. First ring wall;

[0068] 16. Wire outlet groove part;

[0069] 20. Protective cover;

[0070] 21. Cover plate;

[0071] 22. Second accommodation groove;

[0072] 24. Second ring wall;

[0073] 25. Hollow convex part;

[0074] 26. Upper ring part;

[0075] 27. Ring groove;

[0076] 28. Relief groove;

[0077] 30. Sealing member;

[0078] 31. First part;

[0079] 32. Second part;

[0080] 33. Third part;

[0081] 40. Circuit board;

[0082] 42. Electronic component;

[0083] 50. Stator;

[0084] 60. Shaft tube;

[0085] 70. Rotor;

[0086] 72. Blade;

[0087] 90. Wire;

[0088] 91. Lower wire winding sleeve;

[0089] 92. Upper wire winding sleeve;

[0090] 93. Conductive connector;

[0091] 94. Sealing washer;

[0092] 10a. Bearing seat;

[0093] 10b. Bearing seat;

[0094] 101. Outer peripheral surface;

[0095] 14a. First ring wall;

[0096] 14b. First ring wall;

[0097] 140. Top surface;

[0098] 142. Groove;

[0099] 144. Ring groove;

[0100] 160. Upper surface;

[0101] 162. Groove;

[0102] 20b. Protective cover;

[0103] 21b. Cover plate;

[0104] 210. Top surface;

[0105] 211. Bottom surface;

[0106] 212. Protrusion;

[0107] 213. Card slot;

[0108] 214. Groove;

[0109] 216. Opening;

[0110] 24b. Second ring wall;

[0111] 240. Outer surface;

[0112] 242. Notch;

[0113] 250. Top surface;

[0114] 251. Outer surface;

[0115] 260. Top surface;

[0116] 261. Outer surface;

[0117] 262. Inner surface;

[0118] 32b, the second part;

[0119] 501, the outer peripheral surface;

[0120] 910, the top surface;

[0121] 912, the lower extension part;

[0122] C, the combined structure;

[0123] C', the combined structure;

[0124] S, the enclosed space. Specific embodiments

[0125] Combined with the description of the drawings and the specific embodiments of the present invention, the details of the present invention can be more clearly understood. However, the specific embodiments of the present invention described herein are only for the purpose of explaining the present invention and cannot be understood in any way as a limitation of the present invention. Under the teaching of the present invention, those skilled in the art can conceive any possible variations based on the present invention, and these should all be regarded as belonging to the scope of the present invention.

[0126] Unless otherwise defined, the up, down, left, right and other directions mentioned herein are based on the up, down, left, right and other directions shown in the present invention Figure 1 and are hereby stated together.

[0127] Figure 1 Showing an exploded perspective view of the motor 1 according to some embodiments of the present invention. Figure 2 Showing an assembled perspective view of the motor 1 according to some embodiments of the present invention. Figure 3 Showing a cross-sectional view of the motor 1 according to some embodiments of the present invention. With reference to Figures 1 to 3 , the motor 1 of the present invention may include a base 10, a protective cover 20, a seal 30, a circuit board 40, a stator 50 (including, for example, a stator core, a lower winding sleeve 91, an upper winding sleeve 92, a connecting member 93 and a coil (not shown)), a shaft tube 60, a rotor 70, a wire 90 (including, for example, a power line and a signal control line) and a sealing washer 94.

[0128] In some embodiments, as Figure 1 and Figure 3 shown, the base 10 may have a central tube portion 11, a first receiving groove 12, a first annular wall 14 and a wire outlet groove portion 16. The first receiving groove 12 may be located between the central tube portion 11 and the first annular wall 14. The first annular wall 14 may surround the first receiving groove 12. The wire outlet groove portion 16 may allow the wire 90 (such as a power line and a signal control line) to pass through. In some embodiments, as Figure 1As shown, the base 10 can be connected to the frame 10'.

[0129] Figure 4A Shows a perspective view of the protective cover 20 according to some embodiments of the present utility model. Figure 4B Shows another perspective view of the protective cover 20 according to some embodiments of the present utility model. With reference to Figure 3 、 Figure 4A and Figure 4B , the protective cover 20 can be disposed above the base 10. In some embodiments, as Figure 4A and Figure 4B shown, the protective cover 20 can have a cover plate 21, a second receiving groove 22, a second annular wall 24, a hollow protrusion 25, an upper annular portion 26, an annular groove 27, and a relief groove 28. The cover plate 21 can have a top surface 210, a bottom surface 211, a plurality of protrusions 212, a card slot 213, a groove 214, and an opening 216. The protrusions 212 can protrude from the top surface 210. The card slot 213 can be located between two adjacent protrusions 212. The groove 214 can be recessed from the top surface 210. The opening 216 can penetrate through the cover plate 21.

[0130] In some embodiments, as Figure 3 、 Figure 4A and Figure 4B shown, the second receiving groove 22 can be located below the bottom surface 211 of the cover plate 21. The second annular wall 24 can surround the second receiving groove 22. In some embodiments, the second annular wall 24 can have a notch 242. The notch 242 can face the wire outlet groove portion 16 of the base 10. The hollow protrusion 25 can be disposed at the center of the cover plate 21 and protrude in a direction opposite to the base 10. The upper annular portion 26 can surround the hollow protrusion 25. The annular groove 27 can be located between the upper annular portion 26 and the hollow protrusion 25. The relief groove 28 can communicate with the second receiving groove 22.

[0131] In some embodiments, as Figure 1 and Figure 3 shown, the seal 30 can include a first part 31 and a second part 32. The first part 31 of the seal 30 can be disposed between the wire outlet groove portion 16 of the base 10 and the protective cover 20 (e.g., the notch 242 of the second annular wall 24). In some embodiments, the first part 31 of the seal 30 can contact the upper surface 160 of the wire outlet groove portion 16 and the protective cover 20. In some embodiments, the first part 31 of the seal 30 can close the notch 242 of the second annular wall 24. In some embodiments, the first part 3l of the seal 30 can include a sealant or a rubber plug. In some embodiments, the first part 31 of the seal 30 can form a closed space S with the protective cover 20 and the base 10. In some embodiments, the closed space S can include the first receiving groove 12 of the base 10 and the second receiving groove 22 of the protective cover 20.

[0132] The second part 32 of the seal 30 can be disposed between the first annular wall 14 of the socket 10 and the second annular wall 24 of the protective cover 20. In some embodiments, the second part 32 of the seal 30 can include sealant or a sealing ring. In some embodiments, the second part 32 and the first part 31 of the seal 30, together with the protective cover 20 and the socket 10, can form an enclosed space S. In some embodiments, the volume of the first part 31 of the seal 30 can be smaller than the volume of the second part 32 of the seal 30.

[0133] In some embodiments, as Figure 3 shown, in a cross-sectional view, the width of the first part 31 of the seal 30 can be greater than the width of the second part 32 of the seal 30. The height of the first part 31 of the seal 30 can be smaller than the height of the second part 32 of the seal 30.

[0134] As Figure 1 and Figure 3 shown, the circuit board 40 can be disposed in the enclosed space S. In some embodiments, electronic components 42 (such as capacitors, transistors, transformers, sensors, or other IC components) can be configured on the circuit board 40, and the electronic components 42 can be located in the relief groove 28 of the protective cover 20 ( Figure 6 ).

[0135] As Figure 3 shown, the stator 50 can be disposed on the protective cover 20. In some embodiments, the stator 50 can contact the hollow protrusion 25 and the upper ring portion 26 of the protective cover 20. In some embodiments, the outer peripheral surface 501 of the stator 50 can be aligned with the outer surface 261 of the upper ring portion 26.

[0136] The shaft tube 60 can penetrate through the socket 10, the protective cover 20, and the stator 50. In some embodiments, the shaft tube 60 can penetrate through the central tube portion 11 of the socket 10, and the shaft tube 60 can be in a tight fit with the central tube portion 11. In some embodiments, the shaft tube 60 can pass through the hollow protrusion 25 of the protective cover 20, and the shaft tube 60 can be in a tight fit with the hollow protrusion 25.

[0137] The rotor 70 can be pivotally connected to the shaft tube 60.

[0138] The wire harness 90 (such as a power cord and a signal control line) can pass through the notch 242 of the second annular wall 24 of the protective cover 20 and be electrically connected to the circuit board 40.

[0139] The lower wire winding sleeve 91 can be disposed in the annular groove 27 of the protective cover 20. In some embodiments, the top surface 910 of the lower wire winding sleeve 91 can be flush with the top surface 250 of the hollow protrusion 25 and the top surface 260 of the upper ring portion 26. In some embodiments, the lower wire winding sleeve 91 can contact the inner surface 262 of the upper ring portion 26 and the outer surface 251 of the hollow protrusion 25.

[0140] In some embodiments, such as Figure 3 shown, the lower winding sleeve 91 may have a plurality of lower extensions 912. In some embodiments, the coil may be wound around the plurality of lower extensions 912 of the lower winding sleeve 91. In some embodiments, in order to position the lower winding sleeve 91, at least one of the plurality of lower extensions 912 may be limited in the groove 214 of the cover plate 21. In some embodiments, in order to prevent the lower winding sleeve 91 from rotating, at least one of the plurality of lower extensions 912 may be limited in the card slot 213 ( Figure 4A ) of the cover plate 21.

[0141] The upper winding sleeve 92 may be disposed on the stator 50 for winding the coil.

[0142] The connecting member 93 may penetrate through the protective cover 20 and the circuit board 40. The connecting member 93 may be electrically connected to the circuit board 40. In some embodiments, the connecting member 93 may be connected to a coil (not shown).

[0143] The sealing washer 94 may be disposed between the cover plate 21 of the protective cover 20 and the circuit board 40. In some embodiments, the sealing washer 94 may be disposed around the opening 216 of the cover plate 21, and the connecting member 93 may pass through the opening 216 of the cover plate 21 and the sealing washer 94.

[0144] The motor 1 of the present utility model disposes the circuit board 40 in the closed space S formed by the first part 31 of the seal 30, the protective cover 20 and the bearing seat 10, which can achieve the effects of moisture-proof, dust-proof and salt spray-proof, and there is no need to use a vacuum coating device during the protection process, which can reduce the protection cost of the circuit board 40.

[0145] Refer to Figure 5 , which shows a cross-sectional view of the motor 1a according to some embodiments of the present utility model. Figure 5 The motor 1a has a structure similar to that of the Figure 3 motor 1, and the main difference is only that: the structure of the bearing seat 10a and the seal 30 further include a third part 33.

[0146] In some embodiments, such as Figure 5As shown, the first annular wall 14a of the socket 10a may have a groove 142. The second part 32 of the seal 30 may be disposed in the groove 142 of the first annular wall 14a. In some embodiments, the second annular wall 24 of the protective cover 20 may be partially disposed in the groove 142 of the first annular wall 14a and covered by the second part 32 of the seal 30. In some embodiments, the wire outlet groove portion 16 of the socket 10a may have a groove 162. The groove 162 is recessed from the upper surface 160. The third part 33 of the seal 30 may be disposed in the groove 162 of the wire outlet groove portion 16. In some embodiments, the third part 33 of the seal 30 may contact the first part 31 of the seal 30. Thus, the first part 31, the second part 32, and the third part 33 of the seal 30 may form a closed space S with the protective cover 20 and the socket 10a. In some embodiments, the material of the third part 33 of the seal 30 may be different from the material of the first part 31 of the seal 30. In some embodiments, the third part 33 of the seal 30 may be a sealant, and the first part 31 of the seal 30 may be a rubber plug.

[0147] Refer to Figure 6 , which shows a cross-sectional view of the motor 1b according to some embodiments of the present invention. Figure 6 The motor 1b has a structure similar to that of the motor 1 in Figure 3 , and the main difference is only in the combination manner of the protective cover 20b and the socket 10b and the configuration of the second part 32b of the seal 30.

[0148] In some embodiments, as shown in Figure 6 , the second annular wall 24b of the protective cover 20b may be sleeved outside the first annular wall 14b of the socket 10b. In some embodiments, the outer surface 240 of the second annular wall 24b may be aligned with the outer peripheral surface 101 of the socket 10b. In some embodiments, the second part 32b of the seal 30 may be disposed between the cover plate 21b of the protective cover 20b and the first annular wall 14b of the socket 10b. In some embodiments, the first annular wall 14b of the socket 10b may have a top surface 140 and an annular groove 144 recessed from the top surface 140. The second part 32b of the seal 30 may be disposed in the annular groove 144 of the first annular wall 14b. In some embodiments, the second part 32b of the seal 30 may include a sealant or a sealing ring.

[0149] Figure 7 Shows a three-dimensional assembly view of the fan 8 according to some embodiments of the present invention. Figure 8 Shows a cross-sectional view of the fan 8 according to some embodiments of the present invention. Refer to Figure 7 and Figure 8 , the fan 8 of the present invention includes a motor 1 as shown in Figures 1 to 3 and a plurality of blades 72. The blades 72 may be connected to the rotor 70 of the motor 1.

[0150] Figures 9 to 14 Schematic diagrams showing one or more stages of a method for manufacturing a motor according to the present utility model. In some embodiments, the method is used to manufacture a motor 1 as shown in Figures 1 to 3 .

[0151] Refer to Figure 9 , a combined structure C is provided. The combined structure C may include a protective cover 20 and a stator 50 disposed on the protective cover 20. The stator 50 may include a conducting member 93 passing through the protective cover 20. Figure 9 The protective cover 20 of Figure 3 may be the same as the protective cover 20 of Figure 9 The stator 50 of Figure 3 may be the same as the stator 50 of Figure 9 The conducting member 93 of Figure 3 may be the same as the conducting member 93 of

[0152] In this step, a lower winding sleeve 91 may be further placed in the annular groove 27 of the protective cover 20, and an upper winding sleeve 92 may be placed on the stator 50. Figure 9 The lower winding sleeve 91 of Figure 3 may be the same as the lower winding sleeve 91 of Figure 9 The upper winding sleeve 92 of Figure 3 may be the same as the upper winding sleeve 92 of

[0153] Refer to Figure 10 , the circuit board 40 is placed into the protective cover 20, and the conducting member 93 passes through the circuit board 40. Figure 10 The circuit board 40 of Figure 3 may be the same as the circuit board 40 of Figure 10 In this step, a sealing washer 94 may be further placed between the cover plate 21 of the protective cover 20 and the circuit board 40, and the conducting member 93 passes through the sealing washer 94. Figure 3 The sealing washer 94 of

[0154] Refer to Figure 11 , the conducting member 93 and the circuit board 40 are welded together. In this step, the wire 90 and the circuit board 40 may be further welded together. Figure 11 The wire 90 of Figure 3 may be the same as the wire 90 of

[0155] Refer to Figure 12, pass the shaft tube 60 through the protective cover 20 and the stator 50. In this step, the shaft tube 60 can pass through the hollow convex part 25 of the protective cover 20, and the shaft tube 60 can be in a tight fit with the hollow convex part 25. Figure 12 The shaft tube 60 of Figure 3 can be the same as the shaft tube 60 of

[0156] Refer to Figure 13 , connect the shaft tube 60 with the socket 10. In this step, the shaft tube 60 can penetrate into the central tube part 11 of the socket 10, and the shaft tube 60 can be in a tight fit with the central tube part 11. Figure 13 The socket 10 of Figure 3 can be the same as the socket 10 of

[0157] Refer to Figure 14 , place the first part 31 of the seal 30 between the wire outlet groove part 16 of the socket 10 and the protective cover 20 to form a closed space S through the first part 31 of the seal 30, the protective cover 20 and the socket 10. In this step, the second part 32 of the seal 30 can be further placed between the first annular wall 14 of the socket 10 and the second annular wall 24 of the protective cover 20 to form a closed space S through the second part 32 and the first part 31 of the seal 30, the protective cover 20 and the socket 10. In this step, the notch 242 of the second annular wall 24 can be closed by the first part 31 of the seal 30. Figure 14 The first part 31 of the seal 30 of Figure 3 can be the same as the first part 31 of the seal 30 of Figure 14 The second part 32 of the seal 30 of Figure 3 can be the same as the second part 32 of the seal 30 of

[0158] Refer to Figure 3 , pivotally connect the rotor 70 to the shaft tube 60 to form the motor 1 as shown in [[ID=�2]] Figure 3 .

[0159] Figures 15 to 20 A schematic diagram showing one or more stages of a method for manufacturing a motor according to some embodiments of the present invention. In some embodiments, the method is used to manufacture the motor 1a as shown in Figure 5 .

[0160] Refer to Figure 15 , provide the combined structure C'. The combined structure C' can include the protective cover 20, the stator 50 disposed on the protective cover 20, and the first part 31 of the seal 30 in contact with the protective cover 20. The stator 50 can include the conducting member 93 passing through the protective cover 20. In this step, the first part 31 of the seal 30 can be placed at the notch 242 of the second annular wall 24. Figure 15 The protective cover 20 of Figure 5 can be the same as the protective cover 20 of Figure 15The stator 50 can be the same as [[ID= the stator 50. ​ The connecting member 93 can be the same as ​ the connecting member 93. ​ The first part 31 of the seal 30 can be the same as ​ the first part 31 of the seal 30.

[0161] In this step, the lower winding sleeve 91 can be further placed in the annular groove 27 of the protective cover 20, and the upper winding sleeve 92 can be placed on the stator 50. ​ The lower winding sleeve 91 can be the same as ​ the lower winding sleeve 91. ​ The upper winding sleeve 92 can be the same as ​ the upper winding sleeve 92.

[0162] Refer to ​ , place the circuit board 40 into the protective cover 20, and make the connecting member 93 penetrate through the circuit board 40. ​ The circuit board 40 can be the same as ​ the circuit board 40. In this step, the sealing washer 94 can be further placed between the cover plate 21 of the protective cover 20 and the circuit board 40, and make the connecting member 93 pass through the sealing washer 94. ​ The sealing washer 94 can be the same as ​ the sealing washer 94.

[0163] Refer to ​ , weld and join the connecting member 93 and the circuit board 40. In this step, the wire 90 can be further passed through the first part 31 of the seal 30, and then the wire 90 and the circuit board 40 are welded and joined. ​ The wire 90 can be the same as ​ the wire 90.

[0164] Refer to ​ , pass the shaft tube 60 through the protective cover 20 and the stator 50. In this step, the shaft tube 60 can pass through the hollow convex part 25 of the protective cover 20, and the shaft tube 60 can be in a tight fit with the hollow convex part 25. ​ The shaft tube 60 can be the same as ​ the shaft tube 60.

[0165] Refer to ​ , move the combined structure C', the circuit board 40 and the shaft tube 60 above the socket 10a. The first annular wall 14a of the socket 10a has a groove 142, and the wire outlet groove part 16 has a groove 162. Place the second part 32 of the seal 30 in the groove 142 of the first annular wall 14a. Place the third part 33 of the seal 30 in the groove 162 of the wire outlet groove part 16. ​ The socket 10a can be the same as ​of the seat 10a. ​ The second part 32 of the seal 30 may be the same as ​ the second part 32 of the seal 30. ​ The third part 33 of the seal 30 may be the same as ​ the third part 33 of the seal 30.

[0166] Refer to ​ , connect the shaft tube 60 to the seat 10a, and partially place the protective cover 20 (such as the second ring wall 24) into the second part 32 of the seal 30. In this step, the shaft tube 60 can penetrate into the central tube portion 11 of the seat 10a, and the shaft tube 60 can be in a tight fit with the central tube portion 11. In addition, the first part 31 of the seal 30 can be made to contact the third part 33 of the seal 30.

[0167] Refer to ​ , pivotally connect the rotor 70 to the shaft tube 60 to form a motor 1a as ​ shown.

[0168] The above embodiments are only for illustrating the principles and effects of the present invention, rather than limiting the present invention. Modifications and changes made by those skilled in the art to the above embodiments still do not violate the spirit of the present invention. The scope of the rights of the present invention shall be as set forth in the following claims.

Claims

1. A motor, characterized in that, The motor includes: a base having an outlet groove portion; a protective cover disposed above the base; a seal including a first portion, the first portion of the seal being disposed between the outlet groove portion of the base and the protective cover, and the first portion of the seal and the protective cover and the base form a closed space; a circuit board disposed in the closed space; a stator disposed on the protective cover; a shaft tube penetrating the base, the protective cover and the stator; and a rotor pivotally connected to the shaft tube.

2. The motor according to claim 1, wherein The first portion of the seal contacts the upper surface of the outlet groove portion and the protective cover.

3. The motor according to claim 1, characterized in that, The seal further includes a second portion, the base further has a first receiving groove and a first annular wall surrounding the first receiving groove, the protective cover has a second receiving groove and a second annular wall surrounding the second receiving groove, the second portion of the seal is disposed between the first annular wall of the base and the second annular wall of the protective cover, and the second portion of the seal and the first portion and the protective cover and the base form the closed space.

4. The motor according to claim 3, characterized in that, The second annular wall of the protective cover has a notch facing the outlet groove portion of the base, and the first portion of the seal closes the notch of the second annular wall.

5. The motor according to claim 4, wherein The volume of the first portion of the seal is smaller than the volume of the second portion of the seal.

6. The motor according to claim 4, wherein, The motor further includes a wire, the wire passes through the notch of the second annular wall and is electrically connected to the circuit board.

7. The motor according to claim 3, characterized in that, In a cross-sectional view, the width of the first portion of the seal is greater than the width of the second portion of the seal.

8. The motor according to claim 3, characterized in that, In a cross-sectional view, the height of the first portion of the seal is less than the height of the second portion of the seal.

9. The motor according to claim 1, characterized in that, The protective cover has a cover plate and a hollow convex portion, the hollow convex portion is disposed at the center of the cover plate and protrudes in a direction opposite to the base, the shaft tube passes through the hollow convex portion of the protective cover, and the shaft tube is in a tight fit with the hollow convex portion.

10. The motor according to claim 9, wherein, The stator includes a lower winding sleeve, the protective cover further has an upper ring portion and a ring groove, the upper ring portion surrounds the hollow convex portion, the ring groove is located between the upper ring portion and the hollow convex portion, and the lower winding sleeve is disposed in the ring groove.

11. The motor according to claim 10, wherein, The top surface of the lower winding sleeve is flush with the top surface of the hollow convex portion and the top surface of the upper ring portion.

12. The motor according to claim 10, characterized in that, The stator contacts the hollow convex portion and the upper ring portion.

13. The motor according to claim 10, characterized in that, The outer peripheral surface of the stator is aligned with the outer surface of the upper ring portion.

14. The motor according to claim 10, wherein, The lower winding sleeve contacts the inner surface of the upper ring portion.

15. The motor according to claim 10, characterized in that, The lower winding sleeve contacts the outer surface of the hollow convex portion.

16. The motor according to claim 10, wherein The cover plate has a top surface, a plurality of protrusions protruding from the top surface, and a card slot located between two adjacent protrusions, the lower winding sleeve has a plurality of lower extending portions, and at least one of the plurality of lower extending portions is limited in the card slot.

17. The motor according to claim 10, characterized in that, The cover plate has a top surface and a groove recessed from the top surface, the lower winding sleeve has a plurality of lower extending portions, and at least one of the plurality of lower extending portions is limited in the groove.

18. The motor according to claim 1, characterized in that, The stator includes a conducting member that penetrates through the protective cover and the circuit board, and the conducting member is electrically connected to the circuit board.

19. The motor according to claim 18, characterized in that, The motor further includes a sealing gasket. The protective cover has a cover plate, and the sealing gasket is disposed between the cover plate of the protective cover and the circuit board, and the conducting member passes through the sealing gasket.

20. The motor according to claim 19, wherein The cover plate has an opening, and the sealing gasket is disposed around the opening of the cover plate, and the conducting member passes through the opening of the cover plate.

21. The motor according to claim 1, characterized in that, The seal further includes a second part. The seat further has a first accommodation groove and a first annular wall surrounding the first accommodation groove. The first annular wall has a groove, and the second part of the seal is disposed in the groove of the first annular wall.

22. The motor according to claim 21, characterized in that, The protective cover has a second accommodation groove and a second annular wall surrounding the second accommodation groove. A part of the second annular wall of the protective cover is disposed in the groove of the first annular wall and is covered by the second part of the seal.

23. The motor according to claim 21, wherein The seal further includes a third part. The wire outlet groove portion has an upper surface and a groove recessed from the upper surface, and the third part of the seal is disposed in the groove of the wire outlet groove portion.

24. The motor according to claim 23, wherein The third part of the seal contacts the first part of the seal.

25. The motor according to claim 23, wherein The material of the third part of the seal is different from the material of the first part of the seal.

26. The motor according to claim 1, characterized in that, The seat further has a first accommodation groove and a first annular wall surrounding the first accommodation groove. The protective cover has a second accommodation groove and a second annular wall surrounding the second accommodation groove. The second annular wall of the protective cover is sleeved outside the first annular wall of the seat.

27. The motor according to claim 26, wherein The outer surface of the second annular wall is aligned with the outer peripheral surface of the seat.

28. The motor according to claim 26, wherein, The protective cover further has a cover plate, and the seal further includes a second part. The second part of the seal is disposed between the cover plate of the protective cover and the first annular wall of the seat.

29. The motor according to claim 28, wherein The first annular wall of the seat has a top surface and an annular groove recessed from the top surface, and the second part of the seal is disposed in the annular groove of the first annular wall.

30. The motor according to claim 28, characterized in that, The second part of the seal includes a sealant or a sealing ring.

31. The motor according to claim 1, characterized in that, The first part of the seal includes a sealant or a rubber plug.

32. The motor according to claim 1, wherein Electronic components are disposed on the circuit board. The protective cover has a relief groove, and the electronic components are located in the relief groove of the protective cover.

33. A fan, characterized in that, The fan includes: The motor according to claim 1; and A plurality of blades that are connected to the rotor of the motor.

Images