JP2006144599A - Fan fixing tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily fix a fan, by using a pressurizing part applying pressure, which is directed to a fixed face, to a fan contact part. <P>SOLUTION: In a fan fixing tool, the fan contact part 2 is brought into contact with a fan case 24, and a first pressurizing part 4 and a first pressurizing part 4' are provided to apply the pressure, which is directed to the fixed face 12, to the fan contact part 2. Forces F1, F2 to spread the first pressurizing part 4 and first pressurizing part 4' to the outside is converted by the first pressurizing part 4 and first pressurizing part 4' into pressure F which is directed to the fixed face 12 and exerted on the fan contact part 2. Only by pressing the fan against the fixed face 20 with the pressure F, the fan can be fixed to the fixed face with simple structure without the need for a bolt, a nut, complicated spring structure or a snap. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to fixing a fan used for heat dissipation and cooling to a housing or the like.

  Conventionally, fans have been used for heat dissipation and cooling of electronic devices (see Patent Documents 1 to 4). The fan needs to be installed in the electronic device.

JP 2002-206500 A Japanese Utility Model Publication No. 6-56667 Japanese Utility Model Publication No. 5-72193 Japanese Utility Model Publication No. 6-78722

  However, when the fan is attached to an electronic device as in the above-described conventional technology, screwing is required (see Patent Documents 1 and 2), or a complicated spring structure is required (see Patent Document 3). ), And a snap is required (see Patent Document 4).

  Accordingly, an object of the present invention is to easily fix a fan.

  A fan fixing device according to the present invention is a fan fixing device for fixing a fan to a fixing surface, traversing a blade accommodating hole for accommodating a blade of the fan in an open state with respect to the outside of the fan, A fan contact portion that contacts the fan, and a pressurizing portion that applies pressure toward the fixed surface to the fan contact portion are configured.

  According to the fan fixture configured as described above, a fan fixture that fixes the fan to the fixing surface is provided. The fan contact portion traverses a blade accommodation hole that accommodates a blade of the fan in a state of being opened to the outside of the fan, and contacts the fan. The pressurizing unit applies pressure toward the fixed surface to the fan contact unit.

  In the fan fixing device according to the present invention, the fan contact portion may have a linear contact portion that is in contact with the fan.

  In the fan fixture according to the present invention, the fan contact portion has a remote portion that is further away from the fan than when the linear contact portion is extended, and the remote portion crosses the blade receiving hole. You may do it.

  In the fan fixture according to the present invention, the pressurizing portion includes a fulcrum portion fixed to the fixing surface, and a connection portion connected to the fan contact portion, and the fulcrum portion is You may make it be near the said fixed surface rather than the said connection part.

  The fan fixing device according to the present invention includes a first pressurizing portion and a second pressurizing portion, and the fulcrum portion of the first pressurizing portion is a point of the connection portion of the first pressurizing portion and You may make it arrange | position on the opposite side to the said fulcrum part of a said 2nd pressurizing part regarding the surface orthogonal to the said fixed surface including one point of the said connection part of a said 2nd pressurizing part.

  In the fan fixture according to the present invention, the fan may be disposed between the first pressurizing portion and the second pressurizing portion.

  In the fan fixing device according to the present invention, the plurality of fans are fixed to a fixed surface, and the plurality of fans are arranged between the first pressurizing portion and the second pressurizing portion. Also good.

  The fan fixture according to the present invention is a fan fixture for fixing a fan to a fixing surface, a fan contact portion that traverses the fan and contacts the fan, and a pressure toward the fixing surface at the fan contact portion. A first pressurizing part that applies pressure to the first pressurizing part across the fan, and a second pressurizing part that applies pressure toward the fixed surface to the fan contact part, The pressurizing portion has a first fulcrum portion fixed to the fixed surface, and a first connection portion connected to the fan contact portion, and the second pressurizing portion is attached to the fixed surface. A second connection portion connected to the fan contact portion, and the first support portion includes one point of the first connection portion and the second connection portion. The second fulcrum portion with respect to a plane including one point and perpendicular to the fixed plane; Configured as being positioned on opposite sides.

  According to the fan fixture configured as described above, a fan fixture that fixes the fan to the fixing surface is provided.

  The fan contact portion traverses the fan and contacts the fan. A 1st pressurization part applies the pressure which goes to the said fixed surface to the said fan contact part. The second pressurizing portion faces the first pressurizing portion with the fan interposed therebetween, and applies a pressure toward the fixed surface to the fan contact portion.

  The first pressurizing portion has a first fulcrum portion fixed to the fixed surface and a first connection portion connected to the fan contact portion.

  The second pressurizing portion has a second fulcrum portion fixed to the fixed surface and a second connection portion connected to the fan contact portion.

  The first fulcrum portion is disposed on the opposite side of the second fulcrum portion with respect to a plane that includes one point of the first connection portion and one point of the second connection portion and is orthogonal to the fixed surface.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view of a fan fixture 1, an outer wall 10, and a fan 20 according to an embodiment of the present invention. The fan 20 is fixed to the outer wall 10 by the fan fixture 1. In addition, the blade | wing 22b of the fan 20 is abbreviate | omitted for convenience in FIG.

  The outer wall 10 is a housing of an electronic device such as a computer, for example. However, the outer wall 10 is not necessarily a housing. For example, it is conceivable that the fan 20 fixed to the outer wall 10 is unitized so that it can be detached from the electronic device. In this case, the outer wall 10 is a part of the unit.

  The outer wall 10 includes a bottom surface 11, a fixing surface 12, a positioning guide pin 14, a fan fixing fulcrum protrusion 16, and a fan hole 18.

  The fixed surface 12 is a surface to which the fan 20 is fixed. The positioning guide pin 14 is a pin for determining the position of the fan 20 on the fixed surface 12. The positioning guide pins 14 protrude in the normal direction of the fixed surface 12. The fan fixture fulcrum projection 16 is a projection for hooking the fan fixture 1. The fan fixture fulcrum protrusion 16 has a hole oriented in the normal direction of the bottom surface 11, and the fan fixture 1 is hooked in the hole. The fan hole 18 is a hole for allowing the air generated by the fan 20 to flow outside the outer wall 10. Air is circulated between the inside and outside of the outer wall 10 to cool or radiate heat of the electronic circuit or the like inside the outer wall 10.

  The fan 20 includes a motor unit 22, a blade accommodation hole 23, and a fan case 24.

  FIG. 2 is a diagram illustrating a configuration of the fan 20. The motor unit 22 accommodates a motor (not shown) that rotates around a rotation axis in the normal direction of the fixed surface 12. A blade 22b (see FIG. 2B) is attached to the motor. A cover 22a is visible on the front side of the motor unit 22 (the side opposite to the fixed surface 12). As the motor rotates (for example, in the direction of the arrow shown in FIG. 2B), the blade 22b rotates, and the wind flows to the outside of the outer wall 10 (see FIG. 2A).

  The blade accommodation hole 23 is a hole that accommodates the blade 22 b in a state of being open to the outside of the fan 20. In the present embodiment, the blade accommodation hole 23 is an octagonal hole (see FIG. 2B). Thus, since the blades 22b are open to the outside of the fan 20 (more specifically, as shown in FIG. 2 (b), the blades 22b can be seen from the outside of the fan 20). In addition, the wind can circulate.

  The fan case 24 is a case on the outer periphery of the motor unit 22. At the corner of the fan case 24, a positioning cylinder 24a in which the positioning guide pins 14 are fitted is provided. The positioning cylinder 24a is a hollow cylinder, and the positioning guide pin 14 fits in the hollow portion. Instead of the positioning guide pins 14, corner projections for attaching the fan 20 may be used.

  The fan fixture 1 is for fixing the fan 20 to the fixing surface 12. The fan fixture 1 includes a fan contact portion 2, a first pressurizing portion 4, and a second pressurizing portion 4 '.

  FIG. 3 is a plan view (FIG. 3A), a front view (FIG. 3B), and a side view (FIG. 3C) of the fan fixture 1.

  The fan contact portion 2 has a remote portion 2a, a linear contact portion 2b, and a bent portion 2c. Referring to FIG. 3A, there are two linear contact portions 2b. When either one of the two linear contact portions 2b is extended, the other linear contact portion 2b is overlapped. Referring to FIG. 3A, there are two bent portions 2c having the same length. The two bent portions 2c are parallel to each other, and each is orthogonal to the linear contact portion 2b at the end of the linear contact portion 2b. The remote part 2a is a linear part that connects the ends of the bent part 2c that are not connected to the linear contact part 2b.

  The 1st pressurizing part 4 has the 1st connection part 4a and the 1st fulcrum part 4b. In the 1st connection part 4a, the edge part (one which the bending part 2c is not connected) of the linear contact part 2b, and the 1st pressurization part 4 are connected. The first pressurizing portion 4 extends linearly away from the fan contact portion 2 from the first connection portion 4a above the surface M (see FIG. 3C) where the fan contact portion 2 exists. To go. The first pressurizing portion 4 bends substantially at a right angle at the first fulcrum portion 4b (see FIG. 3C). However, when viewed from the front, the first pressurizing portion 4 is straight (see FIG. 3B).

  The second pressurizing portion 4 'has a second connection portion 4'a and a second fulcrum portion 4'b. In the second connection portion 4'a, the end of the linear contact portion 2b (the one where the bent portion 2c is not connected) and the second pressurizing portion 4 'are connected. The second pressurizing portion 4 ′ is a straight line away from the fan contact portion 2 and below the surface M (see FIG. 3C) where the fan contact portion 2 exists from the second connection portion 4′a. It extends into a shape. The second pressurizing portion 4 ′ is bent at a substantially right angle at the second fulcrum portion 4 ′ b (see FIG. 3C). However, when viewed from the front, the second pressurizing portion 4 ′ is straight (see FIG. 3B).

  The first fulcrum portion 4b is disposed on the opposite side of the surface M from the second fulcrum portion 4'b. More strictly, the surface M includes one point of the first connection portion 4a and one point of the second connection portion 4'a, and can be said to be a surface orthogonal to the fixed surface 12.

  Next, a procedure for fixing the fan 20 to the fixing surface 12 of the outer wall 10 by the fan fixture 1 and the shape at that time will be described.

  First, as shown in FIG. 1, the fan fixture 1, the outer wall 10, and the fan 20 are arranged. At this time, the angle formed by the first pressurizing portion 4 and the second pressurizing portion 4 ′ of the fan fixture 1 is θo (see FIG. 3C).

  Next, the fan 20 is brought close to the fixed surface 12, and the positioning cylinder 24 a of the fan 20 is fitted to the positioning guide pin 14.

  And the front-end | tip (part farther from the surface M than the 1st fulcrum part 4b (refer FIG.3 (c))) of the 1st pressurization part 4 of the fan fixing tool 1 and the front-end | tip of 2nd pressurization part 4 '( By pressing a portion further away from the surface M than the second fulcrum portion 4′b (see FIG. 3C), the angle formed by the first pressurizing portion 4 and the second pressurizing portion 4 ′ is determined from θo. Also make it smaller. The first pressurizing part 4 and the second pressurizing part 4 ′ are connected by the fan contact part 2. Therefore, since the fan contact portion 2 is twisted by the pressing of the tip of the first pressurizing portion 4 and the tip of the second pressurizing portion 4 ′, a force for returning to the original pressure is generated.

  The fan fixing fulcrum protrusion 16 is formed with a hole through which the tips of the first pressurizing portion 4 and the second pressurizing portion 4 ′ pass. Here, the tips of the first pressurizing portion 4 and the second pressurizing portion 4 ′ are passed through the holes of the fan fixture fulcrum protrusion 16. And the press to the fan fixture 1 is stopped.

  Then, the fan fixture 1 presses the fan 20 against the fixing surface 12. FIG. 4 is a perspective view showing a state in which the fan 20 is pressed against the fixed surface 12, FIG. 5 is a side view (viewed from the direction of arrow A in FIG. 1), and FIG. However, in FIG. 6, the vicinity of the tips of the first pressurizing portion 4 and the second pressurizing portion 4 'is not shown.

  At this time, the linear contact portion 2b contacts the fan case 24, and the fan contact portion 2 traverses the blade accommodation hole 23 so as to be farther from the fan 20 than when the remote portion 2a extends the linear contact portion 2b. Crosses the fan 20 (see FIGS. 4 and 6). Moreover, the fan 20 is arrange | positioned between the 1st pressurization part 4 and the 2nd pressurization part 4 '(refer FIG. 4, 6).

  When the pressing to the fan fixture 1 is stopped, the forces F1 and F2 that restore the angle formed by the first pressurizing unit 4 and the second pressurizing unit 4 ′ to θo are the first pressurizing unit 4 and the second pressurizing unit 4 ′. An attempt is made to widen the angle formed by the portion 4 ′ (see FIG. 5).

  However, the first fulcrum part 4b and the second fulcrum part 4'b are caught in the hole of the fan fixture fulcrum protrusion 16 and stopped. That is, the first fulcrum part 4 b and the second fulcrum part 4 ′ b are fixed to the fixed surface 12. Therefore, the force for restoring the angle formed by the first pressurizing part 4 and the second pressurizing part 4 ′ to θo is the first connection farther from the fixed surface 12 than the first fulcrum part 4b and the second fulcrum part 4′b. The force F attracts the portion 4a, the second connection portion 4′a, and the fan contact portion 2 to the fixed surface 12 (see FIG. 5). That is, the force that restores the angle formed by the first pressurizing unit 4 and the second pressurizing unit 4 ′ to θo causes the fan contact portion 2 to be fixed to the fixed surface by the first pressurizing unit 4 and the second pressurizing unit 4 ′. It is converted into a force F attracting to 12. This force F is a force that acts to attract the fan contact portion 2 to the fixed surface 12 and widen the angle formed by the first pressurizing portion 4 and the second pressurizing portion 4 ′.

  The linear contact portion 2b of the fan contact portion 2 is in contact with the fan case 24 (see FIGS. 4 and 6). Accordingly, the pressure toward the fixed surface 12 by the fan 20 is applied by the force F that attracts the fan contact portion 2 to the fixed surface 12. Therefore, the fan 20 is fixed to the fixed surface 12. Note that the angle formed by the first pressurizing unit 4 and the second pressurizing unit 4 ′ remains at θ smaller than θo (see FIG. 5). Therefore, the force F that attracts the fan contact portion 2 to the fixed surface 12 continues to work even after the tips of the first pressurizing portion 4 and the second pressurizing portion 4 ′ are stopped.

  According to the embodiment of the present invention, the first pressurizing portion 4 and the second pressurizing portion 4 ′ exert a force F that attracts the fan contact portion 2 to the fixed surface 12 to contact the fan contact portion 2. Is fixed to the fixing surface 12. Therefore, the material cost can be reduced as compared with the case where the fan 20 is fixed to the fixed surface 12 by using four sets of bolts and nuts (fitted to the four corners of the fan 20).

  Moreover, the blade housing hole 23 is traversed so as to be farther from the fan 20 than when the remote portion 2a extends the linear contact portion 2b. For this reason, the wind noise generated when the fan contact portion 2 cuts the wind flowing through the blade accommodation hole 23 can be reduced. It is more preferable that the fan fixture 1 is covered with a hose tube, a vinyl tube or the like so as to suppress the vibration of the fan fixture 1.

  Moreover, since the first fulcrum portion 4b and the second fulcrum portion 4′b are closer to the fixed surface 12 than the first connection portion 4a and the second connection portion 4′a, the side further away from the fixed surface 12 than the fan 20 is. The fan 20 can be fixed even if there is not much space on the front side of the fan 20 in FIG. On the other hand, when the fan 20 is fixed to the fixing surface 12 with a screw as in the prior art, the screw is placed before the fan 20 and then fixed by turning the screw. Space for the length is required. Therefore, the size of the printed circuit board in which the electronic circuit or the like is disposed inside the outer wall 10 is limited by a space corresponding to the length of the screw. However, according to the embodiment of the present invention, it is sufficient if there is a space in the outer wall 10 by the thickness of the fan 20, so the size of the printed circuit board is not limited so much and the degree of freedom in design is improved.

  The first fulcrum part 4b and the second fulcrum part 4′b are divided above and below the surface M, and the fan 20 is sandwiched between the first pressurizing part 4 and the second pressurizing part 4 ′. The fan 20 can be fixed most efficiently including the point of vibration suppression of the fan 20.

  Moreover, if the front-end | tip of 1st pressurization part 4 and 2nd pressurization part 4 'are pressed and let it pass through the hole of the protrusion 16 for fan fixing tool fulcrum, if a press is stopped, the fan 20 will be fixed to the fixed surface 12 This can reduce the number of installation steps. No special tools or jigs such as a screwdriver are required.

  Furthermore, since the fan 20 can be easily attached and detached (when the fan 20 is removed, the tips of the first pressurizing part 4 and the second pressurizing part 4 ′ are pressed so that the fan fixing fulcrum projections 16 can be removed. The fan 20 can be easily maintained and inspected.

  7 is a plan sectional view of the fan fixture 1 and the fan 20 according to the first modification. However, in FIG. 7, the vicinity of the tips of the first pressurizing portion 4 and the second pressurizing portion 4 ′ is not shown. The first modification differs from the above embodiment in that the fan contact portion 2 'is linear. Even if it is like the modification 1, the fan 20 can be easily fixed to the fixed surface 12, but it is disadvantageous in terms of suppressing wind noise.

  FIG. 8 is a plan view of the fan fixture 1 and the fan 20 according to the second modification. In the second modification, two fans 20 are arranged side by side, and the two fans 20 are arranged between the first pressurizing unit 4 and the second pressurizing unit 4 ′. Different. In the second modification, there are three linear contact portions 2b, and the two ends are the same as in the above embodiment, but the middle one is arranged between the two fans 20. Different from the above embodiment. In this way, a plurality of fans 20 can also be fixed.

1 is a perspective view of a fan fixture 1, an outer wall 10 and a fan 20 according to an embodiment of the present invention. 2 is a diagram illustrating a configuration of a fan 20. FIG. FIG. 3 is a plan view (FIG. 3A), a front view (FIG. 3B), and a side view (FIG. 3C) of the fan fixture 1. FIG. 4 is a perspective view of a state where the fan 20 is pressed against the fixed surface 12. FIG. 6 is a side view of a state where the fan 20 is pressed against the fixed surface 12. FIG. 6 is a plan sectional view showing a state where the fan 20 is pressed against the fixed surface 12. 6 is a plan sectional view of a fan fixture 1 and a fan 20 according to Modification 1. FIG. It is a top view of the fan fixing tool 1 and the fan 20 concerning the modification 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fan fixture 2 Fan contact part 2a Remote part 2b Linear contact part 4 1st pressurization part 4a 1st connection part 4b 1st fulcrum part 4 '2nd pressurization part 4'a 2nd connection part 4'b 1st Two fulcrum parts 12 Fixed surface 16 Protrusion for fan fixing tool fulcrum 20 Fan 22 Motor part 23 Blade accommodation hole 24 Fan case

Claims (8)

A fan fixture for fixing a fan to a fixed surface,
A fan contact portion that traverses a blade accommodation hole that accommodates a blade of the fan in a state of being open to the outside of the fan, and is in contact with the fan;
A pressurizing unit that applies a pressure toward the fixed surface to the fan contact unit;
Fan fixing device with. The fan fixture according to claim 1,
The fan contact portion is
A linear linear contact portion in contact with the fan;
Fan fixture. The fan fixture according to claim 2,
The fan contact portion is
Rather than extending the linear contact portion, having a remote portion away from the fan,
The remote portion traverses the vane receiving hole;
Fan fixture. The fan fixture according to claim 1,
The pressurizing part is
A fulcrum portion fixed to the fixed surface;
A connecting portion connected to the fan contact portion;
Have
The fulcrum portion is closer to the fixed surface than the connection portion;
Fan fixture. The fan fixture according to claim 1,
A first pressurizing part and a second pressurizing part;
The fulcrum portion of the first pressurizing portion includes a point of the connection portion of the first pressurization portion and a point of the connection portion of the second pressurization portion, and the surface is perpendicular to the fixed surface. It is arranged on the opposite side to the fulcrum part of the two pressurizing parts,
Fan fixture. The fan fixture according to claim 5,
The fan is disposed between the first pressurizing part and the second pressurizing part.
Fan fixture. The fan fixture according to claim 6,
Fixing the plurality of fans to a fixed surface;
A plurality of the fans are disposed between the first pressurizing unit and the second pressurizing unit.
Fan fixture. A fan fixture for fixing a fan to a fixed surface,
A fan contact section across the fan and in contact with the fan;
A first pressurizing portion that applies pressure toward the fixed surface to the fan contact portion;
A second pressurizing unit that faces the first pressurizing unit across the fan and applies a pressure toward the fixed surface to the fan contact unit;
With
The first pressurizing part includes a first fulcrum part fixed to the fixed surface, a first connection part connected to the fan contact part,
Have
The second pressurizing part includes a second fulcrum part fixed to the fixed surface, a second connection part connected to the fan contact part,
Have
The first fulcrum part is disposed on the opposite side of the second fulcrum part with respect to a plane orthogonal to the fixed surface including one point of the first connection part and one point of the second connection part.
Fan fixture.

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