Securing structure for fan sensing element

A securing structure for fan sensing element includes a substrate and a stator. The substrate has a first face and at least one electronic element plug-in connected to the first face. The stator is correspondingly disposed on the substrate. The stator has a silicon steel sheet assembly, a first insulation support and a second insulation support. Two sides of the silicon steel sheet assembly are respectively connected to the first and second insulation supports. The second insulation support is formed with a cavity in a position where the electronic element is positioned, whereby the electronic element is received in the cavity. Accordingly, when assembling the stator and the electronic element, the displacement of the stator and the electronic element can be avoided. In addition, the windings are prevented from being damaged.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a securing structure for fan sensing element, which can eliminate the problem of displacement of the stator and the electronic element and prevent the windings from being damaged.

2. Description of the Related Art

In the modern society, cooling fans with heat dissipation function have become very important components in various electronic products. The cooling fans are applied to many electronic devices ranging from small-size portable electronic devices to large-size electronic equipments of transportation tools. When an electronic device operates, high heat is often generated at the same time to affect the working efficiency of the electronic device or even cause crash of the electronic device. Therefore, the electronic device generally needs a cooling fan to dissipate the heat and lower the temperature of the electronic device so as to keep the electronic device stably working. The reliability and durability of the fan itself are also key factors to ensure that the electronic device works stably. Therefore, nowadays, all the existent fan manufacturers are striving to develop more diversified fans to satisfy various heat dissipation requirements.

Please refer toFIGS. 1A and 1B.FIG. 1Ais a perspective exploded view of a conventional securing structure for fan sensing element.FIG. 1Bis a perspective assembled view of the conventional securing structure for fan sensing element. The conventional securing structure for fan sensing element includes a stator assembly10and a circuit board11. The stator assembly10includes multiple silicon steel sheets101and at least one insulation support102. A sensing element11is disposed on the circuit board11. The sensing element111on the market is generally secured to the circuit board11by means of surface mount technology (SMT) or by means of plug-in connection. When assembling the stator assembly10with the circuit board11, due to the tolerances of the respective components of the fan, the stator assembly10and the sensing element111are often displaced from their true positions. This will cause the problem of rotational speed deviation. In addition, when assembling the stator assembly10and the sensing element111, the windings12are often abraded by the sensing element111. This will damage the windings12.

According to the above, the conventional technique has the following shortcomings:1. The stator assembly and the sensing element are often displaced from their true positions.2. The displacement of the stator assembly and the sensing element will cause the problem of rotational speed deviation.3. The windings are likely to be damaged.

SUMMARY OF THE INVENTION

It is therefore a primary object of the present invention to provide a securing structure for fan sensing element, which can eliminate the problem of displacement of the stator and the electronic element.

It is a further object of the present invention to provide the above securing structure for fan sensing element, which can eliminate the problem of rotational speed deviation due to the displacement of the stator and the electronic element.

It is still a further object of the present invention to provide the above securing structure for fan sensing element, which can prevent the windings from being damaged.

To achieve the above and other objects, the securing structure for fan sensing element of the present invention includes a substrate and a stator. The substrate has a first face and at least one electronic element plug-in connected to the first face. The stator is correspondingly disposed on the substrate. The stator has a silicon steel sheet assembly, a first insulation support and a second insulation support. Two sides of the silicon steel sheet assembly are respectively connected to the first and second insulation supports. The second insulation support is formed with a cavity in a position where the electronic element is positioned, whereby the electronic element is received in the cavity.

In the above securing structure for fan sensing element, the cavity is formed on the second pole of the second insulation support. When assembling the stator and the electronic element, the stator and the electronic element are prevented from displacing from their true positions. In this case, the problem of rotational speed deviation due to the displacement of the stator and the electronic element can be eliminated. In addition, when assembling the stator and the electronic element, the electronic element is connected in the cavity so that the windings wound around the stator are prevented from being scraped or damaged.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Please refer toFIGS. 2A,2B,2C and2D.FIG. 2Ais a perspective exploded view of a first embodiment of the securing structure for fan sensing element of the present invention.FIG. 2Bis another perspective exploded view of the first embodiment of the securing structure for fan sensing element of the present invention.FIG. 2Cis a perspective assembled view of the first embodiment of the securing structure for fan sensing element of the present invention.FIG. 2Dis another perspective assembled view of the first embodiment of the securing structure for fan sensing element of the present invention. According to the first embodiment, the securing structure for fan sensing element of the present invention includes a substrate20and a stator21. The substrate20has a first face201and at least one electronic element202. The electronic element202has a plug-in connection section2021plugged in the first face201.

The stator21is correspondingly disposed on the substrate20. The stator21has a silicon steel sheet assembly211, a first insulation support212and a second insulation support213. Two sides of the silicon steel sheet assembly211are respectively connected to the first and second insulation supports212,213. The silicon steel sheet assembly211has a first end face2111and a second end face2112. The first insulation support212is connected to the first end face2111, while the second insulation support213is connected to the second end face2112. The stator21is formed with a central through hole214axially passing through the silicon steel sheet assembly211and the first and second insulation supports212,213.

The first and second insulation supports212,213respectively have multiple first poles2121and multiple second poles2131. The first poles2121are respectively aligned with the second poles2131. The first and second insulation supports212,213further respectively have a first winding section2122and a second winding section2132. Multiple windings22are wound on the first and second winding sections2122,2132(as shown inFIG. 2D).

The second insulation support213is formed with a cavity2133in a position where the electronic element202is positioned. The electronic element202is correspondingly received in the cavity2133. In this embodiment, the cavity2133is formed on, but not limited to, the second pole2131in a position where the electronic element202is positioned for illustration purposes only. Alternatively, the cavity2133can be formed on a different part of the second insulation support213according to the type of the fan.

In the securing structure for fan sensing element of the present invention, the cavity2133is formed on the second pole2131of the second insulation support213. When assembled, the first insulation support212is correspondingly assembled with the first end face2111, while the second insulation support213is correspondingly assembled with the second end face2112. The electronic element202plugged in the first face201of the substrate20is correspondingly received in the cavity2133of the second pole2131. Accordingly, when assembling the stator21and the electronic element202, the displacement of the stator21and the electronic element202can be avoided and the stator21can be located in a true position. In this case, the problem of rotational speed deviation due to the displacement of the stator21and the electronic element202can be eliminated. In addition, when assembling the stator21and the electronic element202, the electronic element202is connected in the cavity2133so that the windings22wound around the stator21are prevented from being scraped or damaged.

Please now refer toFIGS. 3A and 3Bas well asFIG. 2D.FIG. 3Ais a perspective exploded view of a second embodiment of the securing structure for fan sensing element of the present invention.FIG. 3Bis a perspective assembled view of the second embodiment of the securing structure for fan sensing element of the present invention. The second embodiment is partially identical to the first embodiment in components and connection relationship between the components and thus will not be repeatedly described hereinafter. The second embodiment is mainly different from the first embodiment in that the cavity2133is formed on another section of the second pole2131. When assembled, the electronic element202plugged in the first face201of the substrate20is correspondingly received in the cavity2133. Accordingly, when assembling the stator21and the electronic element202, the displacement of the stator21and the electronic element202can be avoided and the stator21can be located in a true position. In this case, the problem of rotational speed deviation due to the displacement of the stator21and the electronic element202can be eliminated. In addition, when assembling the stator21and the electronic element202, the electronic element202is connected in the cavity2133so that the windings22wound around the stator21are prevented from being scraped or damaged.

According to the aforesaid, in comparison with the conventional technique, the present invention has the following advantages:

1. The displacement of the stator and the electronic element is avoided.

2. The problem of rotational speed deviation is eliminated.

3. The windings are prevented from being damaged.

The present invention has been described with the above embodiments thereof and it is understood that many changes and modifications in 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.