JP2007056681A - Fan holder structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fan holder structure simply formed, compatible to various types, and easily solving problems in noise, air quantity, and heat. <P>SOLUTION: Rectangular parallelepiped mounting parts 1b for mounting a fan plate 2 with a predetermined air hole allowing the air from a fan to pass therethrough are projectedly installed on both front end inner sides of a fan holder 1. The fan plate 2 can be fitted between the mounting part 1b and the fan holder 1 body side from the upper side as shown by the arrow. With this constitution, the fan plate 2 can be attached to and detached from the fan holder 1 and replaced. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a fan holder structure for a fan for cooling an apparatus.

Conventionally, various fan holder structures for fans that cool the inside of various devices such as electronic devices have been proposed. For example, Patent Document 1 discloses a fan unit mounting structure that simplifies mounting and dismounting operations by facilitating mounting and dismounting of the fan unit on the mounting substrate.

Specifically, there is provided a fan unit including a fan having a plurality of rotating blades and a housing surrounding the fan, and a fan unit mounting structure for fixing the fan unit to a mounting board. A holder for attaching the fan unit to the substrate is provided, and a holding portion that fits the housing and a press-fitting groove for press-fitting and holding the attachment substrate are provided in the holder.

And according to this structure, it is supposed that a fan unit can be fixed easily and easily, without using fixing tools, such as a screw and a screw, and the assembly workability | operativity of a fan unit can be improved. In addition, the fan unit is fitted and held in the holding part, and when replacing the fan unit, it can be easily removed by simply pulling the fan unit upward. Yes.

Also, Patent Document 2 describes a fan fixing structure that improves workability when fixing a fan. Specifically, a fan having a guide hole at an appropriate location, a guide rail into which the fan is inserted, a spring plate that presses the guide rail, and a vertical planting from the bottom so as to fit into the guide hole And a fan plate on which the fan is mounted.

According to this configuration, since the fan plate on which the fan is mounted and the fan are fixed without screws from the vertical direction and the horizontal direction, even when the fan is replaced, it can be easily removed and attached. You can do that.
JP 2003-304085 A Japanese Utility Model Publication No. 4-18490

However, in various devices such as electronic devices that require cooling, there are various heat requirements for each model, and accordingly, the necessary air volume and noise countermeasures vary. Had to wake up the mold separately. For this reason, noise, air volume, and heat countermeasures are difficult, requiring a long examination period and increasing costs.

The present invention has been made in view of such problems, and an object thereof is to provide a fan holder structure that can be applied to various models with a simple configuration and that can easily cope with noise, air volume, and heat.

In order to achieve the above object, according to the present invention, a fan holder in which a fan is mounted and a fan plate having a predetermined air hole that is detachably attached to a front end portion of the fan holder and allows air from the fan to pass therethrough. It is characterized by comprising.

The fan plate is inserted between a mounting portion extending from a front end portion of the fan holder and a receiving portion provided at the front end portion, and between the leaf spring portion protruding from the mounting portion and the receiving portion. It is inserted and held.

Further, the fan plate is held and fixed at a predetermined position of the fan holder by fitting a protrusion provided on the leaf spring portion with a fitting hole provided on the fan plate.

The fan plate may have a shape in which a portion where the air hole is opened is inflated forward.

According to the present invention, it is possible to provide a fan holder structure that can be applied to various models with a simple configuration and that can easily cope with noise, air volume, and heat.

Specifically, with regard to cooling of the apparatus, the fan is common and the fan holder can be commonly used by one type of mold, and it becomes possible to cope with various apparatus types by replacing only the fan plate.

In addition, even with a single model, it is possible to study by changing only the fan plate, which makes it easy to take measures against noise, airflow, and heat.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view schematically showing a fan holder structure according to Embodiment 1 of the present invention. As shown in the figure, at the rear end portion of the fan holder 1 having a substantially rectangular tube shape, a long plate-shaped mounting portion 1a for mounting the fan holder 1 on the device side (not shown) protrudes from the left and right outer sides. Yes. A mounting hole 1aa for screwing is provided in the mounting portion 1a. A fan (not shown) is attached inside the fan holder 1 and is externally attached to the side surface or back surface of the apparatus together with the fan holder 1.

On the other hand, at the front end of the fan holder 1, a long plate-like mounting portion 1b for projecting a fan plate 2 having a predetermined air hole through which the wind from the fan passes is provided on both inner sides.
As shown by the arrow, between the mounting portion 1b and the fan holder 1 main body side, the fan plate 2
Can be inserted from above. With this configuration, the fan plate 2 can be attached to and detached from the fan holder 1 and exchanged. Details will be described later.

2A and 2B are schematic views showing the mounting structure of the fan plate in the fan holder. FIG. 2A is a front plan view, FIG. 2B is a front view, and FIG. It is sectional drawing.
As shown in the figure, the mounting portion 1b extends forward from both left and right sides of the front end portion of the fan holder 1 body, and then protrudes inward, and has a substantially L shape in plan view. Also,
A thin plate-like receiving portion 1c is provided at a position facing the mounting portion 1b at the front end portion of the fan holder 1.

Further, a leaf spring portion 1ba for providing an elastic force for holding the fan plate 2 to the mounting portion 1b.
Is provided. As shown in FIG. 4B, this has a shape protruding like a handle from the front surface of the mounting portion 1b toward the rear side. The upper and lower ends of this are connected to the mounting portion 1b.
When the fan plate 2 is inserted between the front end portion of the fan holder 1 and the mounting portion 1b from above, the fan plate 2 is inserted between the leaf spring portion 1ba and the receiving portion 1c and is held by the elasticity of the leaf spring portion 1ba. The

In addition, for example, a protrusion p is provided at the center of the rear surface of the leaf spring portion 1ba, and the corresponding fan plate 2 is provided.
If the fitting hole h is provided in the front surface of the fan and the projection p is fitted into the hole h, the fan plate 2 is securely held and fixed at a predetermined position. The material for forming the fan holder 1 and the fan plate 2 may be resin or sheet metal. With the above configuration, the fan plate 2 can be attached to and detached from the fan holder 1 simply by sliding the fan plate 2 at the front portion of the fan holder 1. The configuration is not limited to the above.

FIG. 3 is a diagram showing various shapes of the air holes 2 a that are opened in the fan plate 2. Figure (
(a) is a type with a large number of circular holes, FIG. (b) is a type with arc-shaped slits along the rotation direction of the fan, and (c) is a radial grid hole. Type.
Various other types are conceivable. Thus, by replacing various types of fan plates 2, the air volume and noise of the fan can be adjusted.

Generally, since the opening area of the fan plate is proportional to the air volume, the noise increases as the air volume increases. On the other hand, since the wind noise becomes smaller as the number of fins provided between the air holes is smaller, the noise is reduced. Therefore, when the opening area is the same, FIG. 3C is a conventional orthodox type, but there are cases where the wind noise is increased due to the large number of fins, which is disadvantageous. On the other hand, in the same figure (b), since the slit is opened along the rotation direction of the fan,
Wind noise is also reduced. Further, in FIG. 5A, noise countermeasures are insufficient, but since only a circular hole is required, die machining is easy and cost reduction can be achieved.

There is also a method of moving the air hole portion away from the fan in order to reduce the wind noise. For example, as shown in a right side cross-sectional view in FIG. 4, the fan plate 2 has a portion in which the air holes 2 a are opened and is inflated to the front, so that the fan plate (not shown) mounted in the fan holder 1 can be used. 2 can be moved away substantially, the wind from the fan is not directly blown to the air holes 2a, and the wind noise can be reduced.

As described above, according to the present invention, the fan can be shared and the fan holder can be used in common with one type of mold for cooling the device. Will be able to. Of course, in a single model, it is possible to study by changing only the fan plate, so that noise, air volume, and heat countermeasures can be easily implemented.

  The present invention is applicable to any device that requires cooling by a fan.

The perspective view which shows typically the fan holder structure which concerns on Example 1 of this invention. The schematic diagram which shows the attachment structure of a fan plate. The figure which shows the various shapes of the air hole opened in a fan plate. The right side sectional view showing the shape where the air hole portion of the fan plate is inflated forward.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fan holder 1a, 1b Mounting part 1c Receiving part 1ba Leaf spring part 2 Fan plate 2a Air hole

Claims (4)

A fan holder to which a fan is attached, and a fan plate that is detachably attached to a front end portion of the fan holder and has a predetermined air hole through which air from the fan passes,
The fan plate is inserted between a mounting portion extending from a front end portion of the fan holder and a receiving portion provided at the front end portion, and is inserted between a leaf spring portion protruding from the mounting portion and the receiving portion. Held
A fan holder structure in which the fan plate is held and fixed at a predetermined position of the fan holder by fitting a protrusion provided on the leaf spring portion with a fitting hole provided in the fan plate. A fan holder structure comprising: a fan holder to which a fan is attached; and a fan plate that is detachably attached to a front end portion of the fan holder and has a predetermined air hole through which air from the fan passes. . The fan plate is inserted between a mounting portion extending from a front end portion of the fan holder and a receiving portion provided at the front end portion, and is inserted between a leaf spring portion protruding from the mounting portion and the receiving portion. The fan holder structure according to claim 2, wherein the fan holder structure is held by a fan. 4. The fan holder structure according to claim 2, wherein a portion of the fan plate in which the air hole is opened is inflated forward. 5.

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