JP2009252843A - Fixing member and device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fan unit fixing member that suppresses vibrations generated by a cooling fan, with simple constitution. <P>SOLUTION: The fan unit fixing member 1 includes two grooves across a center part 6. The groove 3 close to a chip part 2 between the two grooves is provided in order to be engaged with and fix a fan unit. The groove 4 close to a chip part 5 is provided in order to be engaged with and fix a fan fitting member. The fan unit fixing member 1 is inserted into a fixing hole of the fan unit and a fixing hole of the fitting member to fix the fan unit and fitting member. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a fixing member that is fixed to an attachment member for attaching a fan unit including a cooling fan.

  2. Description of the Related Art Conventionally, an electronic device generates heat due to the operation of an electronic circuit, a drive unit, etc., and the inside becomes high temperature. Therefore, a cooling fan for cooling the inside is usually attached.

  FIG. 8 is a diagram illustrating an example of a configuration of a mounting position of a conventional fan unit. The fan unit 101 including the cooling fan 102 is fixed to an attachment member 104 made of a sheet metal to which the fan unit 101 is attached by screws 103.

  In this configuration, when the cooling fan 102 is driven, the vibration of the cooling fan 102 is transmitted to the mounting member 104 so that the mounting member 104 resonates. For example, noise is generated or the image quality, sound quality, etc. are adversely affected. There was a problem.

  Therefore, for example, as shown in FIG. 9, there is a structure including a washer-like vibration-proof rubber member 105 that absorbs and blocks vibration between the fan unit 101 and the mounting member 104. However, also in the structure shown in FIG. 9, the fan unit 101 and the attachment member 104 are fixed by the screw 103, and the screw 103 is in contact with both the fan unit 101 and the attachment member 104. For this reason, the vibration of the cooling fan 102 cannot be sufficiently blocked.

  As another example, the configuration of the mounting position of the cooling fan described in Patent Document 1 can be given.

  FIG. 10 is a diagram showing a configuration of a cooling fan mounting device described in Patent Document 1. In FIG. The cooling fan 115 includes a frame 118, and a motor 119 is attached to the center of the frame 118. A rotating blade 120 is attached to the output shaft of the motor 119. The frame 118 is fixed to the fan base 122 by a fan fixing screw 121, and the fan base 122 is fixed to the chassis 124 in the cabinet via a vibration isolating rubber member 123.

  The anti-vibration rubber member 123 is made of column-shaped butyl rubber, and is configured such that seats of screws 121 are bonded and bonded to both ends thereof, and the fan base 122 and the chassis 124 are connected by nuts 128 screwed to the screws 126. It is fixed.

  As another example, the configuration of the mounting position of the cooling fan as shown in FIG. 11 can be cited.

  In this configuration, the fan unit 136 including the cooling fan 135 is grounded in the case 133, the fan unit 136 is fixed to the case 133 by the vibration isolating rubber members 134 a and 134 b, and the case 133 is made of sheet metal by the screw 131. It is fixed to the attachment member 132.

Utility Model Registration No. 2552610

  However, the configuration shown in FIGS. 10 and 11 includes many components in addition to the cooling fan. For this reason, there has been a problem that the cost is increased, the apparatus is enlarged due to the space provided with the parts, and time is required for assembly.

  The present invention has been proposed in view of such a conventional situation, and provides a fixing member capable of suppressing vibration generated from a cooling fan with a simple configuration and an apparatus including the fixing member. For the purpose.

  In order to achieve the above-described object, the fixing member according to the present invention is made of an elastic material, and has two grooves that fit into the fixing hole of the first member and the fixing hole of the second member, respectively. At least the insertion side is formed so that the cross section in the direction substantially perpendicular to the insertion direction is small.

  In order to achieve the above-described object, an apparatus according to the present invention includes a first member, a second member, and an elastic material, and includes a fixing hole for the first member and a second member. A fixing member having two grooves each fitted to the fixing hole, and the fixing member is formed so that at least the side to be inserted has a smaller cross section in a direction substantially perpendicular to the insertion direction, The first member and the second member are fixed via a fixing member.

  According to the present invention, the fixing member is made of an elastic material, and has two grooves that respectively fit the fixing hole of the first member and the fixing hole of the second member, and at least the side to be inserted is By forming the cross section in a direction substantially perpendicular to the insertion direction to be small, vibration generated from the cooling fan can be suppressed with a simple configuration.

  Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the drawings.

  FIG. 1 is a view showing an appearance of a fan unit fixing member 1 in an embodiment to which the present invention is applied. The fan unit fixing member 1 is used to fix a fan unit including a cooling fan to an attachment member made of a sheet metal for attaching a fan unit included in an apparatus main body such as an electronic device.

  The fan unit fixing member 1 has two grooves via the central portion 6. Of these two grooves, the groove 3 closer to the tip 2 is provided to be fitted and fixed to a fan unit described later. Further, the groove 4 on the side close to the tip portion 5 is provided to be fitted and fixed to a mounting member described later.

  The fan unit fixing member 1 is formed such that a cross section in a direction substantially perpendicular to an insertion direction in which the fan unit fixing member 1 is inserted into a fixing hole described later from the center portion 6 becomes small. That is, the fan unit fixing member 1 is formed so that the cross-sectional diameter of the cross section gradually decreases from the ends of the grooves 3 and 4 toward the tip portion 2 and the tip portion 5 respectively. Here, the cross-sectional diameter refers to a diameter of a cross section obtained by cutting in a substantially vertical direction with respect to a straight line connecting the tip portion 2 and the tip portion 5.

  Thus, when the fan unit fixing member 1 is inserted into a fixing hole of the fan unit and a fixing hole of the mounting member, which will be described later, the fan unit and the mounting member are fixed.

  The fan unit fixing member 1 is made of an elastic material that absorbs vibration and other impacts due to driving of the cooling fan by fixing. Examples of the material of the fan unit fixing member 1 include those having a hardness of 20 to 50 among elastic materials including rubber materials such as silicon rubber, acrylic rubber, and nitrile rubber. Thereby, it is possible not to transmit a vibration to an attachment member.

  FIG. 2 is a diagram illustrating an example of a specific configuration of the fan unit fixing member 1. In FIG. 2, φ represents a cross-sectional diameter. The unit of the numerical value is mm. The fan unit fixing member 1 shown in FIG. 2 is made of silicon rubber having a hardness of 30 or 40 (black, burr height of 0.1 or less).

  3-5 is a figure which shows an example of the aspect which attaches a fan unit to an attachment member via the fan unit fixing member 1 which consists of such a structure.

  As shown in FIG. 3, the fan unit 20 includes a cooling fan 21 and a housing 22 that surrounds the cooling fan 21. The housing 22 has fixing holes 23 a to 23 d for fixing to the attachment member 24. The groove 3 of the fan unit fixing member 1 has a diameter that is approximately the same as the diameter of the fixing holes 23a to 23d and a groove width that is approximately the same as the thickness of the fixing holes 23a to 23d.

  The attachment member 24 to which the fan unit 20 is attached is a chassis made of sheet metal. The mounting member 24 has a vent hole 25, and has fixing holes 26 a to 26 d for allowing the fan unit fixing member 1 to pass around the vent hole 25. The groove 4 of the fan unit fixing member 1 has a diameter substantially the same as the fixing holes 26a to 26d and a groove width substantially the same as the thickness of the fixing holes 26a to 26d.

  In order to fix the fan unit 20 and the attachment member 24, the following operation is performed. The front end portion 2 of the fan unit fixing member 1 is inserted into the fixing hole 23 a of the housing 22 of the fan unit 20. On the surface opposite to the insertion surface of the fan unit fixing member 1, the front end portion 2 of the fan unit fixing member 1 protruding from the fixing hole 23a is pulled. Then, since the fan unit fixing member 1 is made of the elastic material as described above, the fan unit fixing member 1 expands to reduce its cross section. As a result, the fan unit fixing member 1 passes through the fixing hole 23a even at the location having the largest diameter.

  If the pulling out of the fan unit fixing member 1 is stopped when the groove 3 is positioned in the fixing hole 23a of the housing 22, the groove 3 of the fan unit fixing member 1 and the fixing hole 23a of the housing 22 are fitted. Then, the cross section of the fan unit fixing member 1 returns to the original size.

  That is, when the fan unit fixing member 1 is stopped from being pulled out, the cross section before and after the groove 3 becomes larger than the cross section of the fixing hole 23a. It is stably fixed without falling off from the casing 22 of the.

  Also in the remaining fixing holes 23b to 23d, the fan unit fixing member 1 is attached to the housing 22 of the fan unit 20 by the same operation.

  As shown in FIG. 4, the fan unit 20 in which the four fan unit fixing members 1 are respectively attached to the fixing holes 23 a to 23 d is fixed to the attaching member 24 via the fan unit fixing member 1.

  In other words, the front end portion 5 of the fan unit fixing member 1 is inserted into the fixing hole 26a of the mounting member 24, and the fan unit fixing member protruding from the fixing hole 26a on the surface opposite to the insertion surface of the fan unit fixing member 1 is inserted. The tip 2 of 1 is pulled.

  In this way, the same operation as when the above-described fan unit fixing member 1 is fixed to the housing 22 of the fan unit 20 is performed, and the groove 5 of the fan unit fixing member 1 and the fixing hole 26a of the mounting member 24 are formed. Fit.

  By performing the above operation, the fan unit 20 and the mounting member 24 are fixed via the fan unit fixing member 1 as shown in FIG.

  Since the fan unit fixing member 1 in the present embodiment is made of an elastic material, only the fan unit fixing member 1 is a cooling fan that cannot be realized when it is fixed with a conventional metal screw or the like. It is possible to absorb the vibration that occurs when driving 21. Thereby, apparatus main bodies, such as an electronic device, can be used stably. Furthermore, it goes without saying that vibration can be more effectively reduced by selecting an elastic material for the fan unit fixing member 1 and optimizing the hardness.

  Further, according to the fan unit fixing member 1 in the present embodiment, since a conventional screw is not used, it is possible to prevent distortion of the shape caused by vibration when the cooling fan 21 is driven.

  Further, according to the fan unit fixing member 1 in the present embodiment, there is no need for other configurations such as a case for suppressing vibration in the fan unit and an auxiliary member for absorbing vibration, and thus space-saving can be achieved. Anti-vibration measures can be taken.

  Further, according to the fan unit fixing member 1 in the present embodiment, since the external impact is prevented from being transmitted to the bearing portion of the cooling fan 21, the cooling fan can be used stably over a long period of time.

  The shape of the fan unit fixing member according to the present invention is not limited to the shape described in the present embodiment.

  As an embodiment different from the above-described embodiment, the fan unit fixing member according to the present invention may be configured such that the tip portion is a tip portion 5a having a shape as shown in FIG. The fan unit fixing member shown in FIG. 6 corresponds to a shape in which the portion from the front end 5 of the fan unit fixing member 1 to the front of the groove 4 is removed. For this reason, the same components as those in the above-described embodiment will be described with the same reference numerals.

  In the embodiment shown in FIG. 6, the distal end portion 2 is inserted into the fixing holes 26 a to 26 d of the attachment member 24 from the opposite side to the above-described embodiment, that is, from the appearance side of the attachment member 24. Then, after fixing the fixing holes 26 a to 26 d of the mounting member 24 and the groove 4, the fixing holes 23 a to 23 d of the fan unit 22 and the groove 3 are respectively fitted.

  6, after the fan unit 20 is attached to the attachment member 24 as shown in FIG. 5, the tip portion 5, which is an unnecessary part in the fan unit fixing member 1, is cut off. You may make it obtain by forming 5a.

  The fan unit fixing member shown in FIG. 6 has a shape having such a tip portion 5a, so that the apparatus main body on which the fan unit is installed can have a simpler configuration, which is convenient when using the apparatus. It becomes possible to improve the property.

  In addition, the fan unit fixing member according to the present invention, as yet another embodiment, has a tip portion 5b having any shape with various designs such as a spherical shape as shown in FIG. It may be. The tip portion 5b is formed by subjecting the tip portion 5a to arbitrary processing. Since the fan unit fixing member shown in FIG. 7 is made of an elastic material, various designs of the tip portion 5b can be manufactured in a mold, for example.

  Also in the embodiment shown in FIG. 7, the distal end portion 2 is inserted into the fixing holes 26 a to 26 d of the attachment member 24 from the opposite side to the above-described embodiment, that is, from the appearance side of the attachment member 24. Then, after fixing the fixing holes 26 a to 26 d of the mounting member 24 and the groove 4, the fixing holes 23 a to 23 d of the fan unit 22 and the groove 3 are respectively fitted.

  7, the fan unit fixing member shown in FIG. 5 is attached to the mounting member 24, and then the fan unit fixing member 1 is cut at the front end portion 5 which is not necessary. The tip 5b may be formed by performing the above process.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

  In the above-described embodiment, the fan unit fixing member has a circular cross section.

  In addition, it goes without saying that the fan unit fixing member according to the present embodiment may have a hole, a dent, a groove, or the like that is filled with a tool such as a jig that is pulled in the longitudinal direction or a perpendicular direction.

It is a figure which shows the external appearance of the fan unit fixing member in embodiment to which this invention is applied. It is a figure which shows an example of the specific structure of the fan unit fixing member in this Embodiment. In this Embodiment, it is a figure which shows an example of the aspect which attaches a fan unit to an attachment member via a fan unit fixing member. In this Embodiment, it is a figure which shows an example of the aspect which attaches a fan unit to an attachment member via a fan unit fixing member. In implementation of this implementation, it is a figure which shows an example of the aspect which attaches a fan unit to an attachment member via a fan unit fixing member. In other embodiment to which this invention is applied, it is a figure which shows an example of the aspect which attaches a fan unit to an attachment member via a fan unit fixing member. In other embodiment to which this invention is applied, it is a figure which shows an example of the aspect which attaches a fan unit to an attachment member via a fan unit fixing member. It is a figure which shows an example of a structure of the attachment position of the conventional fan unit. It is a figure which shows an example of a structure of the attachment position of the conventional fan unit. It is a figure which shows an example of a structure of the attachment position of the conventional fan unit. It is a figure which shows an example of a structure of the attachment position of the conventional fan unit.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Fan unit fixing member, 2, 5 Tip part, 3, 4 groove, 6 Center part, 20 Fan unit, 22 Case, 24 Mounting member

Claims (6)

It is made of an elastic material, and has two grooves that fit into the fixing hole of the first member and the fixing hole of the second member,
A fixing member formed so that at least the side to be inserted has a smaller cross section in a direction substantially perpendicular to the insertion direction.   The fixing member according to claim 1, wherein the elastic material is made of a rubber material having a hardness of 20 to 50.   The fixing member according to claim 1, wherein the first member is a fan unit including a cooling fan, and the second member is an attachment member to which the fan unit is attached.   The fixing member according to claim 1, wherein an unnecessary portion is cut after the first member is attached to the second member.   The fixing member according to claim 1, wherein after the first member is attached to the second member, an unnecessary portion is cut and arbitrary processing is performed. A first member and a second member;
A fixing member made of an elastic material, and having two grooves that respectively fit with the fixing hole of the first member and the fixing hole of the second member;
The fixing member is formed such that at least the side to be inserted has a smaller cross section in a direction substantially perpendicular to the insertion direction,
An apparatus in which the first member and the second member are fixed via the fixing member.

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