TWM604982U - Stator structure of fan - Google Patents

Abstract

This creation is a fan stator structure that includes a silicon steel sheet group and a plurality of conductive supports. The silicon steel sheet group includes a plurality of silicon steel sheets sandwiched between an insulating frame group and wound by a coil. Each conductive support has a fixed Part, a joint part, and an accommodating area set between the fixing part and the joint part, the fixing part and the joint part are respectively located at opposite ends of the conductive bracket, the fixing part is combined with the insulating frame group, and each accommodating The area is used to separately house the first and last sections of the coil, and to contact each conductive support separately. Through this creation, this structure can achieve the effects of improving the yield, simplifying the manufacturing process, and saving labor and cost.

Description

Fan stator structure

This creation relates to a fan stator structure, especially a fan stator structure that can save manpower, improve yield and reduce costs.

Please refer to Figures 1A and 1B. The most important fan is that the stator and the rotor are arranged correspondingly, and operate by inductive magnetism. Among them, the conventional stator 1 is a stack of silicon steel sheets 11 and a stack of silicon steel sheets. An upper insulating frame 12 and a lower insulating frame 13 are respectively arranged on the upper and lower sides of the silicon steel sheet 11, and a coil 14 is wound on each pole of the plurality of silicon steel sheets 11, and finally the coil 14 and a circuit board 17 are welded to complete the manufacturing operation. Since the winding of the coil 14 on the stator 1 in the prior art can be performed manually or by an automated machine, the winding operation mainly involves winding the first end 141 of the coil 14 around one of the poles to fix it. The head end 141 is kept as a free end and is wound in a twist shape, and then the poles are wound. Finally, the head end 141 and the end 142 of the coil 14 are arranged again. However, the conventional technology can only manually manage the wire for the wire management process (for example, the first end 141 and the end 142 are coiled in a twist shape in Figure 1A), and different operators perform wire reeling and arranging The coils 14 and ends 141 and 142 after finishing the work have different diameters, thicknesses and lengths of twist-like windings, so they must go through a trimming (refinement) procedure. Adjust the appropriate length. In addition, when the coil heads, ends 141, 142 are plugged and electrically connected to the circuit board 17 after trimming, they must also be manually fixed through soldering, and the head and ends 141 must be fixed manually during the wire management operation. 142 Due to the increase in the overall wire diameter after the wire is wound, the corresponding opening 171 on the circuit board 17 must be enlarged in addition to the opening 171, and when the opening 171 is enlarged, problems such as tin leakage 181 will occur, and The solder package 182 on the circuit board 17 corresponding to the soldering part has also increased a lot, and the remaining coils 14 and ends 141, 142 after soldering are not beautiful due to the excessive length of the coil Therefore, the short circuit must be processed by another cutting program, which is time-consuming and labor-intensive. In this way, although the stator 1 of the conventional fan can be wound by a mechanized automatic machine in the winding work, and after the winding work is completed, it is finally welded to the circuit board 17, but still must be manually arranged, trimmed, Work steps such as trimming and trimming make the manufacturing process complicated, time-consuming and laborious, and have a high defect rate. Therefore, how to improve the lack of knowledge and reduce manufacturing steps, significantly reduce man-hours, reduce manpower and increase yield, is the current industry's most important goal.

One purpose of this creation is to provide a fan stator structure that can improve yield, simplify manufacturing procedures, and greatly reduce labor and cost. This creation provides a fan stator structure, which includes a silicon steel sheet group and a plurality of conductive supports. The silicon steel sheet group includes a plurality of silicon steel sheets sandwiched between an insulating frame group and wound by a coil. Each conductive support has a fixed Portion, a coupling portion, and a receiving area provided between the fixing portion and the coupling portion, the fixing portion and the coupling portion are respectively located at opposite ends of the conductive bracket, the fixing portion is combined with the insulating frame group, each The accommodating area of the conductive bracket is used to separately house the first and last sections of the coil so that the first and last sections of the coil are in contact with the conductive brackets. This structure can save labor and cost, and also It can improve the yield rate and simplify the manufacturing process.

The above-mentioned purpose of this creation and its structural and functional characteristics will be described based on the preferred embodiments of the accompanying drawings. Please refer to Figures 2A, 2B, 3A, and 5, this creation provides a fan stator structure 2. The fan stator structure 2 includes a silicon steel sheet group 21, an insulating frame group 22, a plurality of conductive supports 24 and a coil 25. The silicon steel sheet group 21 is formed by stacking a plurality of silicon steel sheets 211; the insulating frame group 22 has an upper insulating frame 221 and a lower insulating frame 222. The upper and lower insulating frames 221 and 222 are respectively arranged on the silicon steel sheet group 21 The upper and lower sides, so that the plurality of silicon steel sheets 211 are sandwiched between the upper insulation frame 221 and the lower insulation frame 222, where the lower side of the silicon steel sheet group 21 is opposite to the lower insulation frame as shown in FIG. 222. The upper side of the silicon steel sheet group 21 is opposite to the upper insulating frame 221. The plurality of conductive brackets 24 are made of conductive materials, and the conductive materials are selected from metallic materials or non-metallic materials. In this embodiment, two conductive brackets 24 are selected for illustration. Each conductive bracket 24 has a fixing portion 243, A coupling portion 240 and a receiving area 245 disposed between the fixing portion 243 and the coupling portion 240, wherein the fixing portion 243 and the coupling portion 240 are respectively disposed on opposite ends of the conductive support 24, and the fixing portion 243 is fixed in the insulating frame hole 223 opened on the lower insulating frame 222 of the insulating frame group 22 in a plug-in (assembly connection) manner, but it is not limited to this. In another embodiment, the conductive frame 24 The fixing portion 243 can be formed on the lower insulating frame 222 by integral covering or integral injection molding. The coupling portion 240 is protruding and exposed outside the lower insulating frame 222, and the conductive support 24 is close to the coupling portion 240. A protruding body 242 protrudes from the position of, the coupling portion 240 and the protruding body 242 jointly define the receiving area 245, the coupling portion 240 is electrically connected (through plugging or welding) to a circuit board 3, the protruding The exit body 242 can abut the side of the circuit board 3 facing the silicon steel sheet group 21 (ie, the second surface 34). The receiving area 245 is, for example, a groove (notch or groove or groove) for receiving the The coil first section 251 and the coil end section 252 (tail end) of the coil 25 are respectively in contact with each conductive support 24, and the height of the protrusion 242 is lower than or flush with the joint 240, so that the conductive support The whole of 24 is roughly like ㄐ, but it is not limited to this. The following is the creation of the conductive support 24 in different implementations to accommodate and fix the coil first section 251 and coil end section 252. In some other embodiments, refer to Figure 3B between the joint 240 and the protrusion 242 of the conductive bracket 2 to form a substantially U-shaped receiving area 245 or a V-shaped receiving area in Figure 3C. 245, or the protrusion 242 of the conductive support 24 in Figure 3D is the same height as the coupling portion 240 and the whole is fork-shaped, or the protrusion 242 of the conductive support 24 in Figure 3E is near the inner side of the upper end and the corresponding coupling portion The inner sides of 240 are projected inward to contact each other so that the receiving area 245 is roughly raindrop-shaped, or the protrusion 242 of the conductive support 24 and the coupling portion 240 in Figure 3F are provided with a plurality of recesses at intervals relative to each other. Region 245 is generally sawtooth-shaped. In another embodiment, referring to Figures 4A and 4B, the coupling portion 240 is inserted through the circuit board 3 and electrically connected to each other, and the receiving area 245 is represented as a neck (Figure 4B) or a through hole (Figure 4B). Fig. 4A) or grooves or notches or grooves for the coil first section 251 and the coil end section 252 of the coil 25 to be wound or pierced to fix the coil 25 and contact each conductive support 24 respectively. The receiving area 245 of the above-mentioned various aspects may further have at least one bonding surface 2451. When the coil first section 251 and the coil end section 252 are disposed in the receiving area 245, they will contact the bonding surface 2451, and the bonding surface 2451 is rough. If the surface (cut) is uneven or jagged or sharp, scrape off (scratch) the insulating layer on the surface of the coil first section 251 and the coil end section 252, so that the conductive support 24 and the coil first section 251 and the coil end section 252 electrical connection. The circuit board 3 is provided with a first surface 33, a second surface 34, and a plurality of holes 31. A plurality of electronic components 35 are inserted on the first surface 33. The plurality of holes 31 are opened in the circuit board corresponding to the plurality of conductive supports 24. 3, and the plurality of holes 31 pass through the second surface 34 from the first surface 33 of the circuit board 3, so as to allow the bonding portion 240 of the corresponding conductive bracket 24 to directly penetrate and protrude from the second surface 34 The first surface 33 and the circuit board 3 are provided with soldering points 32 on the first surface 33 around the hole 31, so that the joint 240 of the conductive bracket 24 protruding and exposed on the first surface 33 penetrates the soldering point The welding method is welded together with the corresponding welding point 32, so that the conductive bracket 24 is electrically connected to the circuit board 3, which is used to fix the circuit board 3, and can limit the proper protrusion of the joint 240 on the first surface 33. The welding length is used to improve the problem that the first and the end of the conventional coil must be cut off. Therefore, compared with the conventional design, the manufacturing process can be reduced to shorten the assembly time. In an alternative implementation, a solder layer is formed on the outer surface of the joint 240 of the plurality of conductive brackets 24 and heated, and the solder layer is melted. The plurality of conductive brackets 24 are exposed on the first surface 33 of the joint 240 and the circuit board. The soldering points 32 of 3 are connected, so that the conductive bracket 24 is electrically connected to the circuit board 3. In addition, the first section 251 of the coil and the end section 252 of the coil are in contact with the joint 240 and the protrusion 242 of the conductive support 24, and can be welded by a welding method such as resistance welding or laser welding, so that they have better conductivity and Bond strength. Therefore, the design of the fan stator structure 2 created by this invention can greatly simplify the manufacturing process and save manpower, effectively shorten assembly man-hours, reduce costs and increase yield, and can effectively solve the problem of conventional stator winding operations. Later, it can only be carried out manually, which causes many problems such as complicated manufacturing procedures, time-consuming and laborious, high defect rate, and high cost.

2: Fan stator structure 21: Silicon steel sheet group 211: Silicon steel sheet 22: Insulation frame group 221: upper insulating frame 222: Lower insulation frame 223: Insulation frame hole 24: Conductive bracket 240: Joint 242: protruding body 243: fixed part 245: Containment Area 2451: binding surface 25: coil 251: First section of coil 252: coil end 3: circuit board 31: Hole 32: Welding point 33: first surface 34: second surface 35: electronic components

Figure 1A is a schematic view of the processing of the coil and circuit board of the conventional fan stator. Figure 1B is a schematic diagram of a conventional fan stator and circuit board combination. Figure 2A is an exploded perspective view of an embodiment of the creation. Figure 2B is a combined three-dimensional diagram of an embodiment of the creation. Figure 3A is a three-dimensional schematic diagram of the conductive bracket of one embodiment of the creation. Figures 3B-3F and 4A-4B are schematic diagrams of different implementations of the conductive bracket according to an embodiment of the creation. Figure 5 is a schematic diagram of the combination of a fan stator structure and a circuit board according to an embodiment of the creation.

2: Fan stator structure

21: Silicon steel sheet group

22: Insulation frame group

221: upper insulating frame

222: Lower insulation frame

24: Conductive bracket

240: Joint

242: protruding body

3: circuit board

31: Hole

32: Welding point

33: first surface

34: second surface

35: electronic components

Claims (8)

A fan stator structure includes: A silicon steel sheet group, including a plurality of silicon steel sheets sandwiched between an insulating frame group and wound by a coil; and A plurality of conductive brackets, each conductive bracket has a fixing part, a joining part, and a receiving area provided between the fixing part and the joining part, the fixing part and the joining part are respectively located at opposite ends of the conductive support, The fixing part is combined with the insulating frame group, and the accommodating area of each conductive support is used to separately receive the first and last sections of the coil, so that the first and last sections of the coil are respectively in contact with the conductive support. In the fan stator structure described in the first item of the scope of patent application, a protruding body protrudes from a position of the conductive support near the joint portion, and the joint portion and the protruding body jointly define the receiving area as a slot. For the fan stator structure described in item 1 of the scope of patent application, the receiving area is a groove, notch, groove, neck or a perforation. In the fan stator structure described in item 2 of the scope of patent application, the joint is electrically connected to a circuit board. For the fan stator structure described in item 1 of the scope of patent application, the insulating frame group has an upper insulating frame and a lower insulating frame, the silicon steel sheet group is arranged between the upper insulating frame and the lower insulating frame, and each conductive frame The fixed part is fixedly arranged on the lower insulating frame. According to the fan stator structure described in item 4 of the scope of patent application, a solder layer is formed on the outer surface of the joint portion for electrical connection with the circuit board. For the fan stator structure described in item 1 of the scope of patent application, the connection between the first and last sections of the coil and the corresponding conductive support is resistance welding or laser welding. As for the fan stator structure described in item 1 of the scope of patent application, the fixing part of the conductive bracket is arranged on the insulating frame assembly in any manner of assembly or integral molding.

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