Fan wire trimming module

A fan wire trimming module includes a lower moldboard, an upper moldboard and a base plate. One side of the lower moldboard is formed with a depression and multiple locating bosses. One side of the upper moldboard is formed with multiple locating holes. A periphery of the upper moldboard is formed with at least one fixing split. The locating bosses are fitted in the locating holes. A fixing member is assembled in the fixing split. The upper moldboard is formed with a stator receiving space and at least one hollow section. An inner circumference of the stator receiving space is formed with at least one rib. The hollow section is formed around the stator receiving space. A stator assembly is received in the stator receiving space. Multiple windings are wound on the stator assembly. One end of each winding is engaged in the fixing split.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates generally to a fan wire trimming module, and more particularly to a fan wire trimming module, which can greatly enhance the production efficiency and automate the production of thinner fans.

2. Description of the Related Art

Currently, there is a trend to make electronic products less bulky. Therefore, the fan disposed in various electronic products for driving airflow to dissipate the heat must therefore be thinner than the conventional fans currently in production. It has become a critical issue how to design and mass-produce thinned fans, having high power and better structural strength and that is equipped with a motor stator with a thinned structure.

In the manufacturing process of the stator of the existing thinned fans, after the windings are wound on the stator, there is no securing structure for fixing one end of the windings. Therefore, it is necessary to manually trim the wires so as to complete the successive relevant steps. As a result, in the step of soldering the windings, the windings are apt to displace and loosen. This leads to the shortcoming of poor production efficiency and is unbeneficial to automation of production.

It is therefore the applicant's intention to provide a fan wire trimming module, which can solve the above problems and address the shortcomings of the conventional fan.

SUMMARY OF THE INVENTION

It is therefore a primary object of the present invention to provide a fan wire trimming module, which can greatly enhance the production efficiency.

It is a further object of the present invention to provide the above fan wire trimming module, which can fulfill the requirement of automation of production.

To achieve the above and other objects, the fan wire trimming module of the present invention includes a lower moldboard, an upper moldboard and a base plate. One side of the lower moldboard is formed with a depression and multiple locating bosses. One side of the upper moldboard is formed with multiple locating holes. A periphery of the upper moldboard is formed with at least one fixing split. The locating bosses of the lower moldboard are fitted in the locating holes on the upper moldboard. A fixing member is assembled in the fixing split. The upper moldboard is formed with a stator receiving space and at least one hollow section. An inner circumference of the stator receiving space is formed with at least one rib. The hollow section is formed around the stator receiving space. The base plate is disposed in the depression. A bearing cup protrudes upward from one face of the base plate. A circuit board and a stator assembly are fitted on the bearing cup. The stator assembly is received in the stator receiving space. Multiple windings are wound on the stator assembly. One end of each winding is engaged in the fixing split.

The stator assembly is composed of multiple silicon steel sheets having poles protruding outward from the silicon steel sheets. The windings are wound around the poles. Each two adjacent poles define therebetween a receiving space in which the ribs of the stator are disposed.

According to the structural design of the present invention and as indicated above, the ribs of the stator receiving space are correspondingly received in the receiving spaces defined between the poles of the stator assembly. By means of the structures of the ribs, the radial angle of the stator assembly is fixed, whereby the stator assembly cannot be moved left and right. Moreover, by means of at least one soldering point formed on the circuit board, after one end of the winding of the stator assembly correspondingly passes through the soldering point, the end of the winding is engaged in the fixing split of the upper moldboard. Then, by means of the fixing member of the fixing split, the end of the winding is pulled and tensioned and securely engaged in the fixing split. Finally, the locating bosses of the lower moldboard are correspondingly fitted in the locating holes of the upper moldboard to secure the upper moldboard. Accordingly, by means of the structures of the upper and lower moldboards, the shortcoming of the conventional fan that the wire must be trimmed by labor so that the production efficiency is low can be eliminated. In this case, the production efficiency can be greatly enhanced. In addition, through the hollow section of the upper moldboard, the soldering point of the circuit board on the base plate is exposed to outer side. Therefore, the space necessary for the operation (such as tin tipping, insulation and wire soldering) in the manufacturing process of the stator assembly is reserved. Under such circumstance, the production of the stator assembly can be automated.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

As shown in the drawings, the fan wire trimming module2of the present invention includes a lower moldboard20, an upper moldboard21and a base plate22. One side of the lower moldboard20is formed with a depression200and multiple locating bosses201. The locating bosses201are disposed on a section of the lower moldboard20outside the depression200.

One side of the upper moldboard21is formed with multiple locating holes210. In addition, a periphery of the upper moldboard21is formed with at least one fixing split211. The locating bosses201are adapted to correspondingly fit in the locating holes210. A fixing member3is correspondingly assembled in the fixing split211. The fixing member3is securely mounted in the fixing split211by means of a locking member4. The fixing member3can be a leaf spring or an elastic member with elasticity. A center of the upper moldboard21is formed with a stator receiving space212and at least one hollow section214. An inner circumference of the stator receiving space212is formed with at least one rib213. It should be noted that the ribs213can be selectively arranged on the inner circumference of the stator receiving space212at equal intervals or unequal intervals. The hollow section214is correspondingly formed around the stator receiving space212.

The base plate22is correspondingly disposed in the depression200of the lower moldboard20in flush relation with the face of the lower moldboard20. A bearing cup220protrudes upward from one face of the base plate22. A circuit board221is correspondingly fitted on the bearing cup220. At least one soldering point222is formed on the circuit board221. The soldering point222extends outward from the hollow section214. A stator assembly23is correspondingly disposed on the circuit board221. The stator assembly23has a shaft hole234passing therethrough between two ends thereof. By means of the shaft hole234, the stator assembly23is correspondingly fitted on the bearing cup220. The stator assembly23is composed of multiple silicon steel sheets230. Multiple poles231protrude outward from the silicon steel sheets230. Multiple separate windings232are wound around the several poles231. Each two adjacent poles231define therebetween a rib receiving space233. The stator assembly23is correspondingly received in the stator receiving space212with the ribs213of the stator receiving space212correspondingly received in the rib receiving spaces233. One end of the winding232correspondingly passes through the soldering point222and then is engaged in the fixing split211.

According to the structural design of the present invention, the ribs213of the stator receiving space212are correspondingly received in the rib receiving spaces233defined between the poles231of the stator assembly23. By means of the structures of the ribs213, the radial angle of the stator assembly23is fixed, whereby the stator assembly23cannot be moved left and right. Moreover, by means of the soldering point222on the circuit board22, one end of the winding232of the stator assembly23is pulled and tensioned. After correspondingly passing through the soldering point222, the end of the winding232is engaged in the fixing split211of the upper moldboard21. Then, by means of the fixing member3of the fixing split211, the tensioned end of the winding232is securely engaged in the fixing split211. Finally, the locating bosses201of the lower moldboard20are correspondingly fitted in the locating holes210of the upper moldboard21to secure the upper moldboard21and prevent the upper moldboard21from freely moving in the manufacturing process of the stator assembly23. Accordingly, by means of the structures of the upper and lower moldboards20,21, the shortcoming of the conventional fan that the wire must be trimmed by labor so that the production efficiency is low can be eliminated. In this case, the production efficiency can be greatly enhanced.

In addition, through the hollow section of the upper moldboard21, the soldering point222of the circuit board221on the base plate22is exposed to outer side. Therefore, the space necessary for the operation (such as tin tipping, insulation and wire soldering) in the manufacturing process of the stator assembly23is reserved. Under such circumstance, the production of the stator assembly can be automated.

In conclusion, in comparison with the conventional fan, the present invention has the following advantages:

1. The production efficiency is greatly enhanced.

2. The production of the stator assembly can be automated.

The present invention has been described with the above embodiments thereof and it is understood that many changes and modifications in such as the form or layout pattern or practicing step of the above embodiments can be carried out without departing from the scope and the spirit of the invention that is intended to be limited only by the appended claims.