JP2006066866A - Fan frame - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fan frame in which a surface for smoothly receiving wind is formed by joining an air guide and the drawing structure of the fan frame, so that the interception of wind is reduced and the effect of the fan is enhanced. <P>SOLUTION: The air frame includes a case having an opening, a motor base having a rotary blade placed thereon, the motor base being mounted in the case, at least one air guide mounted between the case and the motor base, and a power source line drawing structure for fixing the power source line of the fan and drawing the power source line from the case. The power source line drawing structure is joined to one of the air guides. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a fan frame, and more particularly, to a fan frame that can reduce the blockage of wind when a line is drawn.

  With the advancement of chemical technology, various electronic products are becoming more and more precise and the size is getting smaller. How to make good heat dissipation, maintain electronic devices in a specific temperature range, One important issue is whether it can be operated. A heat dissipation fan is universally used in electronic products that generate various types of heat. Generally, the fan wheel of a heat dissipation fan is mounted in the frame case, and then the case is installed in a position corresponding to the ventilation hole in the computer housing, or the heat to be dissipated is transferred. The purpose of heat dissipation is achieved by installing it near the device that emits heat and then rotating the fan wheel by driving the motor to dissipate the heat around the electronic device outside the vent.

  Please refer to FIG. 1A and FIG. 1B together. FIG. 1A is a schematic view of a fan frame of a conventional axial fan, and FIG. 1B is an overall cross-sectional view of the conventional axial fan made along the AA direction of FIG. 1A. Show. In the fan frame 11 of the conventional axial fan 10, devices such as a motor (not shown in the figure) and a rotary blade 17 are mounted. In FIG. 1B, the fan frame 11 is a case having one opening, and the two ends of the opening of the case 11 form an air inlet 12 and an air outlet 13, respectively. The motor base 14 is installed in the case 11 and is located at the wind outlet 13. The motor base 14 carries the rotary blades 17, and a plurality of stationary blades 16 are installed between the case 11 and the motor base 14 to guide the direction of airflow.

  Speaking of the assembly relationship between the power supply line 15 of the rotor blade and the case 11, most of the conventional fans are arranged along the side of the stationary blade 16 after bundling the power supply line 15 together and using the case 11. One fastening tape 18 is added on the top, and the bundled power line 15 can be passed through the fastening tape 18 and fixed. The fastening tape 18 is generally installed in the vicinity of where the stationary blade 16 is connected to the frame 11.

  However, the current design of the axial fan 10 is not desirable, and the power line 15 crosses the wind outlet portion, so that the wind that has flown out and the smooth air flow that has entered the original wind inlet 12 is blocked. Since the power line 15 is arranged on the stationary blade 16 side when the air flows into the power line 15, it creates a surface that receives unsmooth wind, blocks the wind, and reduces the wind pressure or air volume of the axial flow fan 10. Let For large fans, the effect is even greater.

  FIG. 1C shows a schematic view of another axial fan frame. Another conventional manufacturing method uses a plurality of rectangular columnar ribs 19, and the ribs 19 are installed between the case 11 and the motor base 14 to support the motor base 14. The power line 15 connected to the rotor blade can be installed behind the rib 19 to avoid a phenomenon of blocking the wind by creating a non-smooth, windy surface like the fastening tape 18 of FIG. 1B. be able to. However, the simple rib 19 design cannot satisfy the user's requirements for various wind pressures or airflow characteristics. Therefore, how to pay attention to the characteristics of the fan and how to reduce the wind block that is incurred when the line comes out is a subject of research.

  Therefore, in order to solve the above-mentioned problems, the present invention joins the line structure of the fan frame and the air guide device to create a surface that receives a smooth wind, reduces the blockage of the wind, and improves the effectiveness of the fan. Provide an enhanced fan frame.

  In accordance with the objects of the present invention, the present invention provides a fan frame including a motor base, at least one air guide device, and a power supply lead structure. The case has an opening, and the motor base is installed in the case and mounts the rotor blades. The air guide device includes a stationary blade or one bent rib, and the air guide device is installed between the case and the motor base. In the power line lead structure, the power line of the fan is fixed and the power line is taken out of the case. The power supply wiring structure is joined to one of the air guide devices. The power line lead-out structure has a conductive wire groove or a penetration hole, and the opening of the conductive wire groove faces the outside of the case, and the power supply line enters the conductive wire groove. One end of the conducting wire groove is connected to the motor base, and the other end is exposed to the outside of the case, and the power source wire is fixed by the conducting wire groove and is taken out of the case. A restricting portion is further installed on the conductor groove to prevent the power line in the conductor groove from dropping off. Alternatively, another hole is installed on the case, and the power supply line is passed through the hole so as to go out of the case. Further, the power line can be put out of the case by putting it in the space of the through hole of the power line leading structure.

  In accordance with the object of the present invention, an axial flow fan including a rotor blade and a frame is provided. The frame includes a case, a motor base, at least one air guide device, and a power supply structure. The case has an opening, and the motor base is installed in the case and mounts the rotor blades. The air guide device includes a stationary blade or one bent rib, and the air guide device is installed between the case and the motor base. In the power line lead structure, the power line of the fan is fixed and the power line is taken out of the case. The power supply wiring structure is joined to one of the air guide devices. The power line lead-out structure has a conductor groove or a penetration hole, the opening of the conductor groove is directed to the outside of the case, and the power line enters the conductor groove. One end of the conducting wire groove is connected to the motor base, and the other end is exposed to the outside of the case, and the power source wire is fixed by the conducting wire groove and is taken out of the case. A restricting portion is further installed on the conductor groove to prevent the power line in the conductor groove from dropping off. Alternatively, another hole is installed on the case, and the power line is taken out of the case through the through hole. Further, the power line can be put out of the case by putting it in the space of the through hole of the power line leading structure.

  According to the fan frame of the present invention, it is possible to join the power supply groove and the air guide device to create a surface that receives a smooth wind, to reduce the blockage of the wind, and to increase the effectiveness of the fan.

  In order that the objects, features, and advantages of the present invention will be more clearly understood, embodiments will be described below in detail with reference to the drawings.

  Please refer to FIG. 2A and FIG. 2B together. FIG. 2A shows a schematic view of a frame of an axial fan according to a preferred embodiment of the present invention, and FIG. 2B shows an overall cross section of the axial fan made along the BB direction of FIG. 2A. The figure is shown. In FIG. 2A, the frame 21 of the fan 20 of the present invention includes devices such as a motor base 24, a motor (not shown in the figure), and a rotary blade 27. The fan preferably comprises an axial fan and can be used in large machines, servo motors, assembly fans, or other electronic devices that generate heat to provide heat dissipation.

  The frame 21 includes a case, a motor base 24, at least one air guide device 26, and a power supply wiring structure 28. In FIG. 2B, the frame 21 is a case having one opening, and two ends of the opening of the case 21 form an air inlet 22 and an air outlet 23, respectively, and the motor base 24 is in the case 21. It is installed and located at the wind outlet 23, and the rotor blade 27 is placed thereon.

  The air guide device 26 is installed between the case 11 and the motor base 14. In the present embodiment, the air guide device 26 is a stationary blade, has an ability to guide the direction of the airflow, and is preferably installed at the air outlet 23. Alternatively, the air guide device 26 is provided with one bent rib, so that a design of a different angle can be made according to the required wind pressure and the amount of wind pressure, and a surface that can receive a smooth wind can be created. Also has the ability to guide.

  Please refer to FIG. 2B and FIG. 2C together. FIG. 2C shows an enlarged view of a portion Q in FIG. 2B. The power line drawing structure 28 fixes the power line 25 and leads the power line 25 from the case 21. The power supply wiring structure 28 is joined to one of the stationary blades 26 therein. The power line lead-out structure 28 has one conductor groove 31, the opening of the conductor groove 31 faces the outside of the case, and the power line 25 is in the conductor groove 31. Since the conducting wire groove 31 is located under the stationary blade 26, the power supply wiring structure 28 does not directly contact the direction of the airflow. Therefore, the smooth airflow that has entered from the wind inlet 22 The air flows through the smooth wind-receiving surface and flows out from the wind outlet 23 directly by the flow guide action of the stationary blade 26. Further, since the power supply line 25 is in the conducting wire groove 31 and is located under the stationary blade 26, there is a drawback that the air current is hindered when the power wires bundled together in the past are arranged on the stationary blade side. Can be improved.

  Alternatively, one end of the conductive wire groove 31 is connected to the motor base 24, the other end is directly exposed to the outside of the case 21, and the power supply line 25 is fixed by the power supply line drawing structure 28, and then directly led out of the case 21. Further, as shown in FIG. 2A, a restricting portion 29 (eg, lock, fastening tape, etc.) can be preferably installed on the conductor groove 31, and the power line 25 in the conductor groove 31 falls off. To prevent.

  Alternatively, one end of the conductor groove 31 is connected to the motor base 24 and the other end is directly connected to the case 21. Furthermore, one opening can be provided on the case 21, and after the power line 25 is passed through the opening, it can be directly taken out of the case 21. In addition, the power line can be put into a space provided in the through hole of the power line leading structure and taken out of the case.

  The power line lead-out structure 28 can be achieved by other methods besides receiving the power line by the conductive groove method. For example, a through hole is formed in one of the stationary blades 26 therein, and the power line 25 is put into a space that the through hole has and is taken out of the case 21.

  As mentioned above, the axial fan frame in the preferred embodiment described above is the same or different if the width of each air guide device does not weaken the wind pressure and air flow characteristics of the original axial fan. And is suitable for the present invention. e. g. The width of the stationary blade 26 joined to the power supply wiring structure 28 is wider than that of the stationary blade 26 not joined to the other power supply wiring structure 28.

  The preferred embodiments of the present invention have been described above, but this does not limit the present invention, and a few changes and modifications that can be made by those skilled in the art without departing from the spirit and scope of the present invention. It is possible to add. Accordingly, the scope of the protection claimed by the present invention is based on the scope of the claims.

The schematic of the fan frame of the conventional axial flow type fan is shown. 1B is a cross-sectional view of the entire conventional axial fan made along the AA direction of FIG. 1A. FIG. The schematic of the fan frame of another axial flow type fan is shown. 1 shows a schematic view of a fan frame of an axial fan according to a preferred embodiment of the present invention. 2B is a cross-sectional view of the entire axial flow fan made along the BB direction of FIG. 2A. FIG. 2B shows an enlarged view of a Q portion in FIG. 2B. FIG.

Explanation of symbols

10, 20 Axial-flow fan 11, 21 Fan frame 12, 22 Air inlet 13, 23 Air outlet 14, 24 Motor base 15, 25 Power line 16, 26 Stator blade 17, 27 Rotary blade 18 Retaining tape 19 Rib 28 Power line Out structure 29 Restriction part 31 Conductor groove

Claims (11)

A case with an aperture,
A motor base installed in the case on which the rotor blades are mounted;
Including at least one air guide device installed between the case and the motor base, and a power supply line extending structure for fixing the power line of the fan and extending the power line from the case;
The power supply line extending structure is a fan frame that is joined to one of the air guide devices.   2. The fan frame according to claim 1, wherein the power supply line extending structure has a conductor groove, an opening of the conductor groove faces an outside of the case, and the power line enters the conductor groove.   The two ends of the opening form an air inlet and an air outlet, respectively, on the case, the air guide device is installed at the air outlet, and an opening direction of the conductor groove is directed to the air outlet. 2. The fan frame according to 2.   The fan frame according to claim 2, wherein a hole is further provided on the case, and a power supply line in the conductor groove is passed through the hole to come out of the case.   One end of the conducting wire groove is connected to the motor base, the other end is exposed to the outside of the case, the power line is fixed by the conducting wire groove, and is taken out of the case. The fan frame as claimed in claim 2.   The fan frame according to claim 5, further comprising a restriction portion provided on the conductor groove to prevent the power line in the conductor groove from dropping off.   The fan frame according to claim 1, wherein the power line lead structure has a through hole, and the power line enters a space of the through hole and exits from the case.   2. The fan frame according to claim 1, wherein a width of the air guide device joined to the power supply line structure is different from a width of the air guide device not joined to the other power supply structure.   The fan frame according to claim 1, wherein the air guide device includes a stationary blade or a bent rib.   The fan frame according to claim 1, wherein the fan is an axial flow fan. A fan including a rotor blade and a frame,
A case with an aperture,
A motor base installed in the case on which the rotor blades are mounted;
Including at least one air guide device installed between the case and the motor base; and a power supply line extending structure for fixing the power supply line of the fan and extending the power supply line of the rotor blade from the case;
The power supply wiring structure is a fan formed by joining with one of the air guide devices.

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