TWI458423B - Inspection apparatus for fan - Google Patents

Description

Fan inspection device

The present invention relates to an inspection apparatus, and more particularly to an inspection apparatus for vibration of a heat dissipation fan.

With the continuous improvement of the performance of electronic devices, heat sinks have become one of the indispensable devices in current electronic devices. If the heat energy generated by the electronic devices is not properly dissipated, the performance will be poor, and the heat will cause electrons. The device was burned. The heat sink is more important for microelectronic components (such as Integrated Circuits), because with the increase of the degree of integration and the advancement of packaging technology, the area of the integrated circuit is continuously reduced, and the unit area is The accumulated heat energy is relatively higher, so the heat dissipation device with high heat dissipation performance has been actively developed by the electronics industry.

The most widely used heat sink today is a fan. Factors such as imperfect homogenization of the material being produced and limitations in the accuracy of the production can cause the fan to vibrate during operation. In particular, if the fan blade weight is unevenly distributed, the fan center will not be able to coincide with its center of rotation, which may cause the fan to unbalance or vibrate during operation, resulting in reduced fan precision and reliability. noise. Therefore, before the finished fan is shipped from the factory, the fan manufacturer needs to inspect the finished fan to control the quality of the shipment.

The current fan manufacturer's vibration inspection method for the finished fan is mostly carried out manually. The inspector takes the way of grasping the fan with one hand. When the fan is powered on, the inspector judges the fan in the third space with the finger feeling. The amount of vibration in the amount. However, this type of hand-feeling test often produces unreliable results with different testers' own test techniques, and the tester is prone to fatigue after a period of inspection, resulting in poor accuracy of the test results. .

Therefore, how to provide a cooling fan vibration inspection method and device thereof, which can replace the current hand sensing inspection method and improve the accuracy of the inspection result, is one of the current important topics.

Therefore, in order to solve the above problems, the present invention provides a fan inspection device, which can replace the current hand inspection method, utilizes mechanical sensing, and uniform inspection conditions and standards, thereby improving the accuracy and accuracy of the inspection results. In addition, by digitizing the test results, it is convenient for the examiner to directly know whether the fan meets the standard by directly reading the value of the test result.

According to an object of the present invention, a fan inspection device is provided for measuring a vibration value generated by at least one fan. The inspection device includes a carrier, a vibration sensor and a plurality of fasteners, and the carrier has an accommodation. The space can be used to carry the fan, and the vibration sensor is disposed on the bottom surface of the carrying platform relative to the receiving space for sensing the vibration value, and the locking component is correspondingly disposed on the opposite side of the carrying platform for fixing the fan.

The fan inspection device has a ejector pin and an elastic member, wherein the protruding portion of the ejector pin faces the accommodating space, and the protruding portion of the thimble is in the shape of a circular arc streamline. The member further has abutting block, and the elastic member is disposed between the thimble and the abutting block, and the abutting block has a perforation, and the opposite sides of the carrying platform respectively have at least one positioning hole, and the positioning hole is coupled with the locating hole. The perforations of the blocks correspond to each other, so that the fasteners can be fixed to the carrier by at least one screw, rivet or the like.

In addition, the fan has a frame body, and the frame body is further provided with a plurality of screw holes, and each of the thimble pins is abutted against the top fan frame and the screw hole thereof, and at least one side of the fan frame is attached to the top surface of the carrier platform. The elastic member is a spring, and the fastening member is disposed on the opposite side of the carrying platform in an inserting manner. The fan inspection device further has a plurality of base columns, the base columns are coupled to the carrier and each has an elastic body, and the elastic system is composed of a spring, a silicone, a rubber or the like. The vibration sensor is electrically connected to a vibration analyzer for analyzing the induced vibration value, and the vibration sensor and the vibration analyzer are electrically connected to a computer to digitize the inspection result by reading The magnitude of the test result is used to determine whether the fan meets the standard, and the vibration sensor is disposed at the center of the bottom surface of the carrying platform relative to the accommodating space. The vibration sensor includes at least two sensing points for respectively sensing the radial and axial vibration components of the fan, and the frame system of the fan is substantially square, circular, elliptical or diamond-shaped, and the housing space in the bearing platform is Corresponding to the shape of the frame of the cooling fan, the fan is a series fan, and the carrying platform is made of phenolic resin, ABS resin or polymer material.

The above and other objects, features, and advantages of the present invention will become more apparent and understood.

Please refer to FIG. 1A and FIG. 1B simultaneously. FIG. 1A is a schematic diagram of the fan and fan inspection device of the present invention, and FIG. 1B is a schematic diagram of the fan inspection device of FIG. 1A. The fan inspection device 20 includes a carrier 21, a vibration sensor 22, a plurality of latching members 23 and a plurality of base posts 24. The accommodating table 21 has an accommodating space 211 for allowing a fan 10 to be installed in the accommodating space 211, and the vibration sensor 22 is disposed at the center of the bottom surface of the loading table 21 with respect to the accommodating space 211. One of the vibration values generated when the fan 10 is rotated. The base post 24 is for coupling with the carrier 21, and the base post 24 further has an elastic body 241, and the elastic body 241 can be composed of a spring, silicone, rubber or the like. The latching member 23 is disposed on opposite sides of the carrying platform 21 for fixing the fan 10.

Please refer to Figure 2, which is a schematic exploded view of the fastener of the fan inspection device. The latching member 23 of the fan inspection device 20 of the present invention can be subdivided into a thimble 231, an elastic member 232 and a resisting block 233. In the actual installation, the thimble, the elastic element and the abutting block are first inserted into the opposite sides of the carrying platform 21. First, the protruding portion 231a of the ejector pin 231 is first loaded toward the accommodating space 211 such that the protruding portion 231a of the ejector pin 231 faces the accommodating space 211, and the elastic member 232 and the abutting block 233 are sequentially loaded. Then, the corresponding block 233 is rotated to allow the through holes 233a on the resisting block 233 to correspond to the positioning holes 212 on the carrying platform 21, and then pass through the positioning holes 212 and the through holes with screws 25, rivets or the like. 233a, the snap member 23 is fixed to the carrier 21. In the embodiment, the fastening member 23 is fixed by one screw above and below, but is not limited thereto, and may be fixed by a single screw.

Please also refer to Figures 3A and 3B. Figures 3A and 3B are schematic cross-sectional views of the fan placed in the fan inspection device. If the fan 10, such as a series fan, is to be loaded into the accommodating space 211, only the wind is required. After the frame 11 of the fan 10 is first aligned with the accommodating space 211, the frame of the fan 10 is pressed down, and the protruding portion 231a of the ejector pin 231 is in the shape of a circular arc stream, and the force of the original pressing force can be converted into The urging force of the elastic member 232, after the elastic member 232 receives the force from the ejector pin 231, causes the elastic member 232 to undergo compression deformation, so that the frame 11 of the fan 10 can enter the accommodating space 211. When the screw hole 12 of the frame 11 is aligned with the thimble 231, the elastic member 232 releases a partial compressive force to push the thimble 231, and the center of the protruding portion 231a of the thimble 231 partially enters the screw hole 12. The remaining portion is abutted against the frame 11 of the fan 10 so that the fan 10 can be fixed in the fan inspection device 20, and at least one side of the frame 11 is attached to the top surface of the carrier 21. In addition, if the fan 10 is taken out from the carrying platform 21, it is easy to quickly disassemble by simply clamping the fan 10 by hand and applying upward force, and the snapping member 23 is operated in the reverse order of the front section. Narration.

When the fan 10 rotates, the generated vibration is transmitted to the base column 24 via the carrier 21, and the carrier 21 can be made of phenolic resin, ABS resin or polymer material in order to allow the vibration generated by the fan 10 to be effectively transmitted. . As a result, as a result of the weight reduction of the stage 21, the acceleration generated during the vibration is also amplified, and the sensing accuracy of the vibration sensor 22 is improved, as shown in FIG. 1A. Further, since the base post 24 has the elastic body 241, the displacement generated by the vibration is appropriately amplified when the vibration is received, and thus the vibration sensor 22 is more likely to detect the vibration of the fan 10.

In addition, referring to FIG. 1B again, in order to allow the vibration sensor 22 to more accurately measure the vibration value, the vibration sensor 22 is disposed at the center of the bottom surface of the stage 21, and the vibration sensor 22 has at least At the second sensing point, the distance from the fan 10 is slightly adjusted according to the actual situation. Thus, the amount of vibration can be finely adjusted according to the principle of the lever, so that the vibration sensor 22 can appropriately amplify the vibration value. Therefore, the sensing points can respectively induce vibration components in the radial direction and the axial direction of the fan 10. After the sensing point is electrically connected to a vibration analyzer, the obtained vibration value is numerically analyzed, and then electrically connected to a computer, and the inspection result is digitized and output. In this way, the operator can objectively know whether the detected fan 10 meets the standard by interpreting the numerical value of the test result.

Thus, by the vibration sensor 22 in the fan inspection device 20, the user can easily detect the vibration values of the radial sides of the fan 10, and the characteristics of the quick disassembly, which is more convenient for quick judgment. Good product.

However, the advantage of the fastening member 23 of the present invention is not limited thereto. Since the elastic member 232 is, for example, a spring, when the elastic member 232 is elastically degraded, the elastic member can be easily and quickly replaced by loosening the screw 25 or the rivet. 232, the fastening member 23 can be kept in the same strength as the screw hole 12 of the fan 10. In this way, the consistency detected by the vibration sensor 22 can be ensured.

In addition, depending on the shape of the casing 11 of the fan 10, the accommodation space 211 in the stage 21 can be changed correspondingly. Therefore, whether it is a square, a circle, an ellipse or a diamond, or even a single rotor fan or a tandem fan, the fan inspection device 20 of the present invention can be applied for measurement.

In summary, the fan inspection device proposed by the present invention can replace the current hand sensing method, adopt mechanical sensing, and adopt uniform inspection conditions and standards, which not only accelerates the inspection efficiency, but also improves the accuracy and accuracy of the inspection result. Sex. The fan inspection device proposed by the invention can speed up the installation and disassembly of the fan, and the inspection result is digitized, so that the tester can directly and quickly determine whether the fan meets the standard by directly reading the value of the inspection result.

While the present invention has been described above in terms of a preferred embodiment, it is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application.

10. . . fan

11. . . framework

12. . . Screw hole

20. . . Fan inspection device

twenty one. . . Carrying platform

211. . . Housing space

212. . . Positioning hole

twenty two. . . Vibration sensor

twenty three. . . Fastener

231. . . thimble

231a. . . Protruding

232. . . Elastic component

233. . . Offset block

233a. . . perforation

twenty four. . . Base column

241. . . Elastomer

25. . . Screw

FIG. 1A is a schematic view of a fan and fan inspection device of the present invention.

Fig. 1B is a schematic view of the fan inspection device of Fig. 1A.

Figure 2 is a schematic diagram of a detailed part of the fastener of the fan inspection device.

3A and 3B are schematic cross-sectional views showing the fan placed in the fan inspection device.

20. . . Fan inspection device

twenty one. . . Carrying platform

211. . . Carrying space

twenty three. . . Fastener

twenty four. . . Base column

241. . . Elastomer

Claims (20)

A fan inspection device for measuring a vibration value generated by at least one fan, the inspection device comprising: a carrier having an accommodation space for carrying the fan; and a vibration sensor disposed on the carrier a bottom surface of the table for sensing the vibration value; a plurality of fastening members each having an elastic member correspondingly disposed on opposite sides of the loading platform for fixing the fan; and a plurality of base columns each having a An elastomer, and the base pillars are coupled to the carrier; wherein the vibration sensor includes at least two sensing points for respectively sensing a radial and axial vibration component of the fan. The fan inspection device of claim 1, wherein each of the fastening members further has a thimble. The fan inspection device of claim 2, wherein one of the protruding portions of the ejector pin faces the accommodating space. The fan inspection device of claim 3, wherein the protruding portion of the thimble is in the shape of a circular arc streamline. The fan inspection device of claim 2, wherein the fastening component further has abutting block, and the elastic component is disposed between the thimble and the abutting block. The fan inspection device of claim 5, wherein the abutting block further has a perforation. The fan inspection device of claim 6, wherein the two opposite sides of the carrier have at least one positioning hole, and the positioning hole corresponds to the through hole of the abutting block. The fan inspection device according to claim 7 is characterized in that the fastener member is fixed to the carrier by the at least one screw, rivet or the like passing through the positioning hole and the through hole. The fan inspection device of claim 2, wherein the fan further has a frame body, and the frame body further has a plurality of screw holes. The fan inspection device of claim 9, wherein each of the ejector pins abuts the frame body and the screw hole. The fan inspection device of claim 10, wherein at least one side of the frame is attached to a top surface of the carrier. The fan inspection device of claim 2, wherein the elastic member is a spring. The fan inspection device of claim 1, wherein the fastening members are disposed in an inserting manner on opposite sides of the loading platform. The fan inspection device of claim 1, wherein the elastic system is a spring, a silicone, a rubber or the like. The fan inspection device of claim 1, wherein the vibration sensor is electrically coupled to a vibration analyzer for analyzing the induced vibration value. The fan inspection device according to claim 15, wherein the vibration sensor and the vibration analyzer are electrically connected to a computer, and the inspection result is digitized, and the fan is known by reading the value of the inspection result. Whether it meets the standard. The fan inspection device of claim 1, wherein the vibration sensor is disposed on the carrier relative to the accommodating space At the center of the bottom surface. The fan inspection device of claim 1, wherein the frame system of the fan is substantially square, circular, elliptical or diamond-shaped, and the accommodation space in the carrier corresponds to the frame of the fan. Body shape size. The fan inspection device of claim 1, wherein the fan is a tandem fan. The fan inspection device according to claim 1, wherein the carrier is made of phenolic resin, ABS resin or polymer material.