CN213151732U

CN213151732U - Fan stator structure

Info

Publication number: CN213151732U
Application number: CN202022147692.6U
Authority: CN
Inventors: 卢彦志; 陈信宏
Original assignee: Asia Vital Components Shenzhen Co Ltd
Current assignee: Asia Vital Components Shenzhen Co Ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-05-07
Anticipated expiration: 2030-09-25

Abstract

The utility model relates to a fan stator structure, including a silicon steel sheet group and plural conductive support, this silicon steel sheet group contains plural silicon steel sheet clamp and establishes between an insulating frame group and is wound by a coil, each conductive support has a fixed part and a joint portion and one sets up the district of acceping between fixed part and joint portion, this fixed part is located the opposite both ends of this conductive support with this joint portion respectively, this fixed part combines with this insulating frame group, each is acceptd the district and is used for receiving the head, the end section of this coil respectively, go into in order to contact with each conductive support respectively, through the utility model discloses this structure can reach the effect that promotes the qualification rate, simplifies the manufacturing procedure and use manpower sparingly and cost.

Description

Fan stator structure

Technical Field

The present invention relates to a stator structure of a fan, and more particularly to a stator structure of a fan, which can save labor, improve qualification rate and reduce cost.

Background

Referring to fig. 1A and 1B, the fan is mainly configured by a stator and a rotor, and operates in an induction excitation manner, wherein the conventional stator 1 is formed by stacking a plurality of silicon steel sheets 11, an upper insulating frame 12 and a lower insulating frame 13 are respectively disposed on the upper and lower sides of the stacked silicon steel sheets, coils 14 are wound on the poles of the plurality of silicon steel sheets 11, and finally the coils 14 are welded to a circuit board 17 to complete the manufacturing operation.

Because the winding of the coil 14 on the stator 1 can be performed manually or by an automated machine in the prior art, the winding operation is mainly performed by wrapping the head end 141 of the coil 14 around one of the poles for fixing, keeping the head end 141 as a free end and winding the free end into a twisted shape, then performing the winding operation on each pole, and finally performing the wire arrangement operation on the head end 141 and the tail end 142 of the coil 14. However, in the prior art, the wire arranging operation procedure only needs to be performed manually (such as winding the head end 141 and the tail end 142 in a twist shape in fig. 1A), and the wire diameter and the length of the twisted winding of the head end 141 and the tail end 141, 142 of the coil 14 after the arranging process are different from each other by different operators, so that the appropriate length needs to be adjusted by a trimming (finishing) procedure.

In addition, when the coil heads and the ends 141 and 142 after the trimming operation are inserted into and electrically connected with the circuit board 17, the coil heads and the ends 141 and 142 are fixed by soldering tin manually, and because the overall wire diameter of the coil heads and the ends 141 and 142 is increased after winding in the wire arranging operation, the corresponding opening 171 on the circuit board 17 must be enlarged, and the opening 171 is enlarged, and the problem of tin leakage 181 is caused, and the soldering tin bag 182 on the circuit board 17 corresponding to the soldered portion is also enlarged a lot, and the coil 14 heads and the ends 141 and 142 left after soldering are not beautiful enough with the remaining soldering tin, and the length is too long to cause short circuit easily, so that the trimming process is required to be carried out, which is time-consuming and labor-consuming. Although the stator 1 of the conventional fan can be wound by a mechanical automatic machine during the winding operation, the winding operation is completed and finally the stator is welded on the circuit board 17, and the winding operation still needs to be performed through manual operation steps such as wire arrangement, trimming, cutting and the like, so that the manufacturing and production process is complicated, time-consuming and labor-consuming, and the qualification rate is low.

Therefore, how to improve the existing defects, reduce the manufacturing steps, greatly reduce the labor hour, reduce the labor power and increase the yield is the first goal of the current business.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can promote the qualification rate, simplify the manufacturing procedure, reduce the fan stator structure of manpower and cost by a wide margin.

In order to achieve the above object, the utility model adopts the following technical scheme:

a fan stator structure, comprising:

a silicon steel sheet group, which comprises a plurality of silicon steel sheets, wherein the silicon steel sheets are clamped between insulating frame groups and are wound by a coil; and

each conductive support is provided with a fixing part, a combining part and a containing area arranged between the fixing part and the combining part, the fixing part and the combining part are respectively positioned at two opposite ends of the conductive support, and the fixing part is combined with the insulating support group, wherein the containing area of each conductive support is used for respectively containing the head section and the tail section of the coil so as to enable the head section and the tail section of the coil to be respectively contacted with each conductive support.

The fan stator structure, wherein: a protruding body protrudes from the position of the conductive support close to the combining part, and the combining part and the protruding body jointly define the containing area as a groove.

The fan stator structure, wherein: the accommodating area is a groove, a gap, a groove, a neck or a through hole.

The fan stator structure, wherein: the combining part is electrically connected with a circuit board.

The fan stator structure, wherein: the insulation frame group is provided with an upper insulation frame and a lower insulation frame, the silicon steel sheet group is arranged between the upper insulation frame and the lower insulation frame, and the fixing part of each conductive support is fixedly arranged on the lower insulation frame.

The fan stator structure, wherein: a solder layer is formed on the outer surface of the combining part for electrically connecting the circuit board.

The fan stator structure, wherein: the connection between the first and the last sections of the coil and the corresponding conductive bracket is resistance welding or laser welding.

The fan stator structure, wherein: the fixing part of the conductive bracket is arranged on the insulating bracket group in any one of assembling and integral forming modes.

Through the utility model discloses this structure can reach and save the manpower and save the cost, and can also reach and promote the qualification rate, simplify manufacturing procedure.

Drawings

Fig. 1A is a schematic view illustrating a conventional fan stator coil and circuit board processing.

Fig. 1B is a schematic diagram of a conventional fan stator and circuit board assembly.

Fig. 2A is an exploded perspective view of an embodiment of the present invention.

Fig. 2B is a perspective view of an embodiment of the present invention.

Fig. 3A is a schematic perspective view of a conductive bracket according to an embodiment of the present invention.

Fig. 3B-3F and fig. 4A-4B are schematic diagrams of different forms of the embodiment of the conductive bracket according to the present invention.

Fig. 5 is a schematic view of a combination of a fan stator structure and a circuit board according to an embodiment of the present invention.

Description of reference numerals: a fan stator structure 2; a silicon steel sheet group 21; a silicon steel sheet 211; an insulating frame group 22; an upper insulating frame 221; a lower insulating frame 222; an insulating frame hole 223; a conductive support 24; a bonding portion 240; a projection 242; a fixing portion 243; a receiving area 245; a bonding surface 2451; a coil 25; a coil head section 251; a coil end section 252; a circuit board 3; a hole 31; a weld 32; a first surface 33; a second surface 34; and an electronic component 35.

Detailed Description

The above objects, together with the structure and functional characteristics of the invention, will be best understood from the following description of the preferred embodiments when read in connection with the accompanying drawings.

Referring to fig. 2A, fig. 2B, fig. 3A, and fig. 5, the present invention provides a fan stator structure 2, the fan stator structure 2 includes a silicon steel sheet set 21, an insulating frame set 22, a plurality of conductive brackets 24, and a coil 25, the silicon steel sheet set 21 is formed by stacking a plurality of silicon steel sheets 211; the insulating frame set 22 has an upper insulating frame 221 and a lower insulating frame 222, the upper and

lower insulating frames

221, 222 are respectively disposed on the upper and lower sides of the silicon steel sheet set 21, so that the plurality of silicon steel sheets 211 are sandwiched between the upper insulating frame 221 and the lower insulating frame 222, wherein as shown in fig. 2, the lower side of the silicon steel sheet set 21 is opposite to the lower insulating frame 222, and the upper side of the silicon steel sheet set 21 is opposite to the upper insulating frame 221.

The plurality of conductive brackets 24 are made of conductive material selected from metal material or non-metal material, in this embodiment, two conductive brackets 24 are selected, each conductive bracket 24 has a fixing portion 243, a combining portion 240 and a receiving area 245 disposed between the fixing portion 243 and the combining portion 240, wherein the fixing portion 243 and the combining portion 240 are respectively disposed at two opposite ends of the conductive bracket 24, and the fixing portion 243 is fixed in the insulating bracket hole 223 formed on the lower insulating bracket 222 of the insulating bracket set 22 in an inserting (assembling) manner, but not limited thereto, in another embodiment, the fixing portion 243 of the conductive bracket 24 can be formed on the lower insulating bracket 222 in an integrally coating or integrally injection molding manner, the combining portion 240 is exposed outside the lower insulating bracket 222 in a protruding manner, and a protruding body 242 is protruded beside the position of the conductive bracket 24 close to the combining portion 240, the combination portion 240 and the protrusion 242 jointly define the receiving area 245, the combination portion 240 is electrically connected (through-plugged or soldered) to a circuit board 3, the protrusion 242 can abut against one side (i.e. the second surface 34) of the circuit board 3 facing the silicon steel sheet set 21, the receiving area 245 is, for example, a slot (notch or groove) for receiving a coil first section 251 and a coil last section 252 (tail end) of the coil 25, so as to respectively contact with each conductive bracket 24, and the height of the protrusion 242 is lower than or equal to the combination portion 240, so that the conductive bracket 24 is generally shaped like ㄐ as a whole, but not limited thereto.

The following are various embodiments of the conductive support 24 of the present invention for receiving and securing the coil first segment 251 and the coil last segment 252. In other embodiments, referring to fig. 3B, a substantially U-shaped receiving area 245 is formed between the combining portion 240 and the protrusion 242 of the conductive bracket 2, or the V-shaped receiving area 245 is formed in fig. 3C, or the protrusion 242 and the combining portion 240 of the conductive bracket 24 are at the same height and are entirely forked in fig. 3D, or the inner side of the protrusion 242 of the conductive bracket 24 near the upper end and the inner side of the corresponding combining portion 240 in fig. 3E are protruded and contacted with each other to make the receiving area 245 substantially rain-drop-shaped, or the inner sides of the protrusion 242 and the combining portion 240 of the conductive bracket 24 in fig. 3F are recessed with a plurality of notches at intervals to make the receiving area 245 substantially zigzag. In another embodiment, referring to fig. 4A and 4B, the connecting 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 (fig. 4B) or a through hole (fig. 4A) or a groove or a notch or a groove for winding or fixing the coil head 251 and the coil tail 252 of the coil 25 and contacting with the conductive brackets 24 respectively.

The accommodating area 245 of each aspect may further have at least one combining surface 2451, and when the first coil section 251 and the last coil section 252 are disposed in the accommodating area 245, the first coil section 251 and the last coil section 252 will contact the combining surface 2451, and because the combining surface 2451 is a rough or uneven surface or a sawtooth or sharp surface (cut), the insulating layer on the surfaces of the first coil section 251 and the last coil section 252 is scraped (scratched), so that the conductive support 24 is electrically connected to the first coil section 251 and the last coil section 252.

The circuit board 3 has a first surface 33, a second surface 34 and a plurality of holes 31, the first surface 33 is inserted with a plurality of electronic components 35, the plurality of holes 31 are opened on the circuit board 3 corresponding to the plurality of conductive brackets 24, and the plurality of holes 31 penetrate through the second surface 34 from the first surface 33 of the circuit board 3, so that the bonding portions 240 of the corresponding conductive brackets 24 directly penetrate through the second surface 34 and protrude out of the first surface 33, and the circuit board 3 is provided with soldering points 32 on the first surface 33 around the holes 31, so that the bonding portions 240 of the conductive brackets 24 protruding out of the first surface 33 are soldered with the corresponding soldering points 32 by means of tin-dipping spot welding, the conductive brackets 24 are electrically connected with the circuit board 3 to fix the circuit board 3, and the proper soldering length of the bonding portions 240 protruding out of the first surface 33 can be limited, the problem that the head and the tail end of the existing coil must be cut off is improved, so the utility model discloses compare in the current time of can reaching to subtract and remove manufacturing procedure and further shorten the equipment man-hour.

In an alternative implementation, after a solder layer is formed on the outer surface of the bonding portion 240 of the plurality of conductive brackets 24 and heated, the solder layer is melted to connect the bonding portion 240 of the plurality of conductive brackets 24 exposed on the first surface 33 with the soldering point 32 of the circuit board 3, so that the conductive brackets 24 are electrically connected with the circuit board 3.

In addition, the coil head 251 and the coil tail 252 can be welded by a welding method, such as resistance welding or laser welding, at the joint 240 and the protrusion 242 contacting the respective conductive support 24, so that the coil head 251 and the coil tail 252 have better conductivity and bonding strength.

Therefore, through the utility model discloses this fan stator structure 2's design can simplify the manufacturing procedure by a wide margin and use manpower sparingly and effectively reach and shorten the equipment man-hour, and then with reduce cost and promote the qualification rate, and still, can effectively solve and only can go on through the manual mode after the current stator wire winding operation and cause that the manufacturing process is numerous and diverse, waste time and energy and not qualification rate height, with high costs a great deal of problem.

Claims

1. A fan stator structure, comprising:

2. The fan stator structure according to claim 1, wherein: a protruding body protrudes from the position of the conductive support close to the combining part, and the combining part and the protruding body jointly define the containing area as a groove.

3. The fan stator structure according to claim 1, wherein: the accommodating area is a groove, a gap, a groove, a neck or a through hole.

4. The fan stator structure according to claim 2, wherein: the combining part is electrically connected with a circuit board.

5. The fan stator structure according to claim 1, wherein: the insulation frame group is provided with an upper insulation frame and a lower insulation frame, the silicon steel sheet group is arranged between the upper insulation frame and the lower insulation frame, and the fixing part of each conductive support is fixedly arranged on the lower insulation frame.

6. The fan stator structure according to claim 4, wherein: a solder layer is formed on the outer surface of the combining part for electrically connecting the circuit board.

7. The fan stator structure according to claim 1, wherein: the connection between the first and the last sections of the coil and the corresponding conductive bracket is resistance welding or laser welding.

8. The fan stator structure according to claim 1, wherein: the fixing part of the conductive bracket is arranged on the insulating bracket group in any one of assembling and integral forming modes.