Mounting bracket, air-cooling fan unit, wireless device, and air-cooling fan installation method

Abstract

To provide a fixing bracket which includes an entrainment preventing function, facilitates work for attaching / removing an air-cooling fan, and enables improvement of working efficiency, and to provide an air-cooling fan unit, a wireless device, and an attachment method of the air-cooling fan.SOLUTION: In a fixing bracket, a plane part 71 having multiple holes for suctioning and exhausting air includes: stud parts 75 which are inserted into fixing holes 11 (first holes) formed on a surface (a first surface), which faces an opposite side of a wall surface of a housing 5, of an air-cooling fan 1 to be fixed; screw receiving parts 72 each of which is provided facing the stud part 75 and to each of which a screw 51 inserted into a fixing hole 14 (a second hole) formed on a surface (a second surface), which contacts with the wall surface of the housing 5, of the air-cooling fan 1 is fixed; and connection parts 73 each of which connects the plane part 71 with the screw receiving parts 72.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a mounting bracket for attaching an air-cooling fan that cools the inside of the housing of an electronic device to the housing, and more particularly to a mounting bracket, an air-cooling fan unit, a wireless device, and an air-cooling fan installation method that can facilitate installation and removal of the air-cooling fan and improve work efficiency. [Background technology]

[0002] [Prior art description: Figure 6] 2. Description of the Related Art In electronic devices, there are forced air-cooling type housings in which a cooling fan is attached inside the housing so that heat generated inside the housing does not adversely affect the components. In such a housing, when the wiring path is close to the intake side of the air-cooling fan, a metal fitting for preventing the wiring from coming into contact with the rotating part of the fan is attached.

[0003] The configuration of a conventional entanglement prevention fitting and a method for attaching an air-cooling fan will be described with reference to Fig. 6. Fig. 6 is an explanatory diagram showing the configuration of a conventional entanglement prevention fitting and a method for attaching an air-cooling fan. As shown in FIG. 6, conventionally, the four corners of an air-cooling fan 1 and an entanglement prevention bracket 2 are aligned and fixed together to the inside surface of a housing 5 by means of fixing screws 4.

[0004] Specifically, with the entanglement prevention bracket 2 pressed against the surface of the air-cooled fan 1 opposite the housing 5, the fixing screws 4 are inserted from the outside of the housing 5 through the wall of the housing 5, the fixing holes of the air-cooled fan 1, and the fixing holes of the entanglement prevention bracket 2, in that order, and the fixing screws 4 are fixed with the nuts 3 arranged at the four corners of the entanglement prevention bracket 2, thereby fixing the air-cooled fan 1 and the entanglement prevention bracket 2 to the inner surface of the housing 5. The entanglement prevention fitting 2 prevents the wires 6 from being entangled in the moving parts of the air-cooling fan 1. Furthermore, a plurality of holes for exhausting or suctioning air are formed in the wall surface of the housing 5, and the housing 5 is shaped to provide an electromagnetic shielding effect.

[0005] In other words, in the conventional configuration, the air-cooled fan 1 and the entanglement prevention bracket 2 were separate parts, making them difficult to handle, and the nut 3 would sometimes fall into the housing 5 during installation / removal, making the installation / removal work complicated.

[0006] [Related Technology] Incidentally, a conventional technique relating to a configuration with a fan inside a housing is disclosed in Japanese Patent Laid-Open Publication No. 2008-28597 entitled "Surveillance Camera" (Patent Document 1). Patent Document 1 describes a surveillance camera in which heat generated by an imaging element or a camera power supply is circulated inside the camera housing using a fan. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] JP 2008-28597 A Summary of the Invention [Problem to be solved by the invention]

[0008] As described above, conventional entanglement prevention fittings are separate components from the air-cooled fan 1, which means that handling each part is complicated and inconvenient when installing / removing the air-cooled fan and entanglement prevention fitting.

[0009] Incidentally, Patent Document 1 does not disclose that the cooling fan and the entanglement prevention fitting are integrated into one body.

[0010] The present invention has been made in consideration of the above-mentioned circumstances, and aims to provide a mounting bracket, an air-cooled fan unit, a wireless device, and an air-cooled fan installation method that have an anti-entanglement function, facilitate the installation / removal of the air-cooled fan, and improve work efficiency. [Means for solving the problem]

[0011] The present invention, which solves the problems of the conventional examples described above, is a mounting bracket that is attached to an air-cooled fan inside a housing and prevents wiring from becoming entangled inside the housing, and is characterized by having a flat portion having a plurality of holes for intake or exhaust, a stud portion provided on the flat portion and having a protrusion that is inserted and fixed into a first hole formed on a first surface that is the front of the air-cooled fan, a screw receiving portion formed opposite the stud portion and into which a screw inserted into a second hole formed on a second surface that is the back of the air-cooled fan and contacts the housing is fixed, and a connecting portion that connects the flat portion and the screw receiving portion.

[0012] The present invention also provides an air-cooled fan unit that is mounted inside a housing, characterized in that the stud portion of the mounting bracket is inserted into and fixed to a first hole in the air-cooled fan.

[0013] The present invention also provides a wireless device having a housing in which the above-mentioned air-cooled fan unit is mounted, characterized in that a screw inserted from outside the housing through a screw hole formed in the housing and a second hole in the air-cooled fan is fixed in the screw receiving portion.

[0014] The present invention also provides a method for mounting an air-cooled fan to a housing, characterized in that a protruding stud portion provided on a flat portion of a mounting bracket having multiple holes for intake and exhaust is inserted and fixed into a first hole formed in a first surface, which is the front surface of the air-cooled fan, and a screw inserted from outside the housing through a screw hole formed in the housing and a second hole formed in a second surface, which is the back surface of the air-cooled fan and contacts the housing, is fixed by a screw receiving portion connected to the flat portion. Effect of the Invention

[0015] According to the present invention, there is provided a mounting bracket which is attached to an air-cooled fan inside a housing and prevents wiring from becoming entangled inside the housing, the mounting bracket comprising: a flat portion having a plurality of holes for intake or exhaust; a stud portion provided on the flat portion and having a protrusion which is inserted and fixed into a first hole formed on a first surface which is the front of the air-cooled fan; a screw receiving portion formed opposite the stud portion and which receives a screw inserted into a second hole formed on a second surface which is the back of the air-cooled fan and which contacts the housing; and a connecting portion which connects the flat portion and the screw receiving portion. Therefore, the mounting bracket and the air-cooled fan are connected by inserting and fixing the stud portion into the first hole on the first surface of the air-cooled fan, thereby forming an integrated unit. Also, there is an effect that small parts such as nuts for receiving the screws are not required, which makes it easier to attach / remove the mounting bracket from / to the housing and improves work efficiency.

[0016] Furthermore, according to the present invention, an air-cooled fan unit is attached to the inside of a housing, and the stud portion of the mounting bracket is inserted into and fixed to the first hole of the air-cooled fan. Therefore, the air-cooled fan unit can be attached / detached as a whole to the housing, preventing parts from separating or falling, making the work easier and improving work efficiency.

[0017] Furthermore, according to the present invention, there is provided a wireless device having a housing to which the above-mentioned air-cooled fan unit is attached, wherein a screw is inserted from outside the housing through a screw hole formed in the housing and a second hole in the air-cooled fan and fixed in the screw receiving portion. Therefore, since the screw penetrates the second surface of the air-cooled fan and is fixed, the screw can be shorter than conventional screws that must penetrate both the second surface and the first surface, and the air-cooled fan unit can be attached / detached from the housing as a single unit, which has the effect of improving work efficiency.

[0018] Furthermore, according to the present invention, there is provided a method of mounting an air-cooled fan to a housing, in which a protruding stud portion provided on a flat portion of a mounting bracket having multiple holes for intake and exhaust is inserted and fixed into a first hole formed in a first surface, which is the front surface of the air-cooled fan, and a screw is inserted from outside the housing through a screw hole formed in the housing and a second hole formed in a second surface, which is the back surface of the air-cooled fan and contacts the housing, and is fixed by a screw receiving portion connected to the flat surface. Therefore, the mounting bracket and the air-cooled fan can be connected outside the housing to form a unit, and then the unit can be mounted to the housing, which has the effect of preventing parts from separating or falling into the housing, making the work easier and improving work efficiency. [Brief description of the drawings]

[0019] [Figure 1] FIG. 2 is an explanatory diagram showing the configuration of the mounting bracket. [Diagram 2] FIG. 2 is an explanatory diagram showing the configuration of the air-cooling fan unit. [Diagram 3] 1 is an explanatory diagram showing the assembly of the air-cooling fan unit. [Figure 4] FIG. 2 is an explanatory diagram of the external appearance of the air-cooling fan unit. [Diagram 5] 4 is an explanatory diagram showing a method of installing the air-cooling fan. FIG. [Figure 6] 1A and 1B are explanatory diagrams showing the configuration of a conventional entanglement prevention fitting and a method of attaching an air-cooling fan. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. [Outline of the embodiment] A mounting bracket according to an embodiment of the present invention (the mounting bracket) secures an air-cooled fan inside a housing and prevents the wiring inside the housing from getting tangled, and is provided with a flat portion having a plurality of holes for intake or exhaust, a stud portion having a protrusion which is inserted and fixed into a first hole formed in a surface of the air-cooled fan facing away from the housing wall (the first surface, referred to as the front surface), a screw receiving portion provided opposite the stud portion and into which a screw which is inserted into a second hole formed in a surface of the air-cooled fan that contacts the housing wall (the second surface, referred to as the back surface), is secured, and a connecting portion which connects the flat portion and the screw receiving portion, and the mounting bracket and the air-cooled fan are connected by fixing the stud portion to the first surface of the air-cooled fan to form an integrated unit which can be attached to and removed from the housing as a unit, and the parts do not come apart during work, making work easy and improving work efficiency.

[0021] In addition, the air-cooled fan unit of this embodiment (this air-cooled fan unit) is a unit in which this mounting bracket is fixed to a first surface of an air-cooled fan, and the wireless device of this embodiment (this wireless device) is a unit in which this air-cooled fan unit is attached to a housing. Moreover, the method of mounting the air-cooling fan according to this embodiment (the present mounting method) is a method of mounting the air-cooling fan in combination with the present mounting bracket and mounting the combined air-cooling fan to the housing.

[0022] [Configuration of this mounting bracket: Figure 1] The configuration of this mounting bracket will be described with reference to Fig. 1. Fig. 1 is an explanatory diagram showing the configuration of this mounting bracket, where (a) is a perspective view seen from the front (front) side, and (b) is a perspective view seen from the back (rear) side. As shown in FIG. 1, the mounting bracket 7 is a bracket formed by processing a single piece of sheet metal, and includes a flat portion 71 with a plurality of holes 70, four screw receiving portions 72 arranged parallel to the flat portion 71, and two connecting portions 73 that are perpendicular to the flat portion 71 and connect the flat portion 71 and the screw receiving portions 72.

[0023] Each part will be explained. The flat surface portion 71 is a porous portion having a plurality of holes 70 arranged in succession, and has a function of preventing the wiring inside the housing from getting entangled in the rotating part of the air-cooling fan. In the example of Fig. 1, the flat surface portion 71 is formed in a rectangular shape. Shapes other than a rectangle are acceptable, but it is preferable that the shape be similar to the planar shape of the cooling fan to prevent the wiring from getting tangled, and that it is not larger than necessary.

[0024] The connection parts 73 are provided on two opposing sides of the flat surface part 71, each connected to a screw receiving part 72, and the flat surface part 71, the screw receiving part 72, and the connection parts 73 are formed as a whole in a U-shape. The connection parts 73 protrude toward the rear side so as to be perpendicular to the flat surface part 71, and the two connection parts 73 are provided in parallel.

[0025] The screw receiving portions 72 are provided at two tip portions of the U-shape of the connecting portion 73 and are formed so as to protrude inwardly of the flat portion 71 and perpendicular to the connecting portion 73. In other words, two screw receiving portions 72 are provided for each connecting portion 73, for a total of four screw receiving portions 72 for this mounting bracket 7.

[0026] A through hole 76 is formed near the tip of the screw receiving portion 72, and a screw receiving nut 74 is provided on the flat surface portion 1 side of the screw receiving portion 72 so as to overlap the through hole 76. The screw-receiving nut 74 receives and fixes the screw inserted from the outside of the housing, and is adhesively fixed to the screw-receiving portion 72 so as not to come off the mounting bracket 7.

[0027] As described below, the depth direction length of connection portion 73 is formed to be shorter than the thickness of the air-cooled fan, and the rear side of screw receiving portion 72 is formed close to the rear side (the side not in contact with the housing) of the housing that constitutes the second surface (the rear surface, the surface attached to the housing) of the air-cooled fan. In other words, the air-cooling fan is in direct contact with the inner wall of the housing, which prevents exhaust air from returning to the inside of the housing.

[0028] Furthermore, studs 75 are provided near the four corners on the rear side of the flat portion 71, protruding to face the screw receiving portions 72. The studs 75 are protrusions that are inserted into fixing holes in the air-cooled fan 1, and the air-cooled fan 1 and the mounting bracket 7 are fixed by the studs 75 to form an integrated unit (air-cooled fan unit).

[0029] In other words, the mounting bracket 7 is configured so that the air-cooled fan 1 is sandwiched in the space behind the flat portion 71 (on the rear side) and the stud portions 75 hold the air-cooled fan 1 . Although the stud portion 75 is made of metal here, it may be of any shape or material as long as it has a structure that will not fall out. For example, it may be a rubber protrusion as long as it has a shape that allows it to be inserted into the fixing hole of the air-cooled fan 1 and has the function of not falling out after insertion.

[0030] [Configuration of the cooling fan unit: Figure 2] Next, the configuration of the air-cooling fan unit will be described with reference to Fig. 2. Fig. 2 is an explanatory diagram showing the configuration of the air-cooling fan unit, and is a perspective view seen from the front side. As shown in FIG. 2, this air-cooling fan unit is configured by inserting and fixing an air-cooling fan 1 having the same configuration as a conventional air-cooling fan into the mounting bracket 7 shown in FIG. For clarity of explanation, in this specification, the air-cooled fan 1 alone will be referred to as the "air-cooled fan," and the configuration in which the air-cooled fan 1 and the mounting bracket 7 are integrated will be referred to as the "air-cooled fan unit."

[0031] As shown in Fig. 2, the air-cooling fan unit 10 is formed by combining and fixing an air-cooling fan 1 (shown by a solid line) to a mounting bracket 7. The dotted line in Fig. 2 shows the state in which the air-cooling fan 1 is in the process of being fitted into the mounting bracket 7.

[0032] Specifically, fixing holes 11 are provided at the four corners of the first surface (the front surface, the surface opposite to the surface attached to the case) of the housing of the air-cooled fan 1, and the stud portions 75 of the mounting bracket 7 are inserted into the fixing holes 11, and the stud portions 75 and the air-cooled fan 1 are connected and fixed by stud nuts 13 on the back side (rear side) of the first surface.

[0033] Here, the work of connecting the air-cooled fan 1 and the mounting bracket 7 to assemble the air-cooled fan unit 10 can be performed outside the housing, making the work easier without dropping the stud nuts 13 inside the housing. As a result, with the front of the air-cooled fan 1 covered by the flat portion 71 of the mounting bracket 7, the four corners of the first face of the air-cooled fan 1 are fixed to the four corners of the flat portion 71 of the mounting bracket 7, forming the air-cooled fan unit 10.

[0034] The air-cooled fan unit 10 constructed in this manner is an integrated structure, so that when attaching / removing it from the housing, small parts such as the stud nuts 13 do not come apart, making it easy to handle and improving work efficiency.

[0035] Furthermore, fixing holes 14 are provided at the four corners of a second surface (the rear surface, the surface opposite to the first surface, the surface attached to the case) of the housing of the air-cooling fan 1. Fixing holes 14 are holes into which screws are inserted to attach air-cooling fan 1 to a housing. The housing of the air-cooling fan 1 is not circular along the fan body, but has a rectangular shape with protruding corners, and fixing holes 11 and 14 are formed in the protruding parts.

[0036] [Assembling the cooling fan unit: Figure 3] Next, assembly of the air-cooling fan unit 10 will be described with reference to Fig. 3. Fig. 3 is an explanatory diagram showing assembly of the air-cooling fan unit, where (a) is a right side view and (b) is a rear view. As shown in Figures 3(a) and (b), when fitting the air-cooled fan 1 into the mounting bracket 7, the fan is rotated so as to avoid the screw receiving portions 72 protruding from the four corners of the mounting bracket 7 (dotted line state), and then rotated in the opposite direction to align it with the appropriate position, and the stud portion 75 is inserted into the fixing hole 11 and fixed in place by tightening the stud nut 13. In the fitted state, the screw receiving portion 72 of the mounting bracket 7 is disposed adjacent to the rear side of the second surface of the air-cooling fan 1 .

[0037] [Appearance of the cooling fan unit: Figure 4] Next, the external appearance of the air-cooling fan unit 10 will be described with reference to Fig. 4. Fig. 4 is an explanatory diagram of the external appearance of this air-cooling fan unit, where (a) is a front view, (b) is a top (plan) view, (c) is a right side view, and (d) is a rear view. As shown in FIG. 4(a), the air-cooled fan unit 10 has a flat portion 71 of the mounting bracket 7 fixed to the front side of the air-cooled unit 1, and as shown in (c), a stud portion 75 of the mounting bracket 7 penetrates the first surface of the air-cooled fan 1 and is fixed with a stud nut 13.

[0038] Furthermore, the screw receiving portion 72 of the mounting bracket 7 is inserted between the first surface and the second surface of the air-cooling fan 1, and is disposed on the rear side of the second surface. In the air-cooling fan unit 10, the fixing hole 14 provided on the second surface of the air-cooling fan 1, the through hole 76 of the screw receiving portion 72, and the axis of the screw receiving nut 74 are formed to coincide with each other.

[0039] When mounting the air-cooled fan 1 to the housing, with the second surface (the surface on the right side in FIG. 4(c)) of the air-cooled fan 1 in contact with the inner wall surface of the housing, a screw is inserted from outside the housing, passing through the wall surface of the housing, the fixing hole 14 of the air-cooled fan 1, and the through hole 76 of the mounting bracket 7, and secured with the screw-receiving nut 74.

[0040] [How to install this cooling fan: Figure 5] Next, a method for mounting the present air-cooling fan will be described with reference to Fig. 5. Fig. 5 is an explanatory diagram showing a method for mounting the present air-cooling fan. 5, first, the air-cooling fan 1 and the mounting bracket 7 are connected outside the housing 5 to assemble the air-cooling fan unit 10. At this stage, the first surface (front surface) of the air-cooling fan 1 is fixed to the mounting bracket 7.

[0041] 5, the air-cooling fan unit 10 is placed inside the wall surface of the housing 5 and fixed with screws 51. The screws 51 pass through the wall surface of the housing 5, the fixing holes 14 of the air-cooling fan 1, and the through holes 76 of the mounting bracket 7, and are fixed with screw-receiving nuts 74. In other words, the screws 51 only fasten the second surface of the air-cooling fan 1 and do not need to reach the first surface, so they can be shorter than in the past.

[0042] In this way, the air-cooling fan unit 10 can be attached to the housing 5 without using small parts such as nuts separate from the unit, making the installation / removal work easier and improving work efficiency. Furthermore, the air-cooling unit 10 is configured so that the flat portion 71 of the mounting bracket 7 covers the moving portion of the air-cooling fan 1, thereby preventing the wiring 6 inside the housing 5 from getting tangled in the fan.

[0043] The housing 5 to which the present air-cooling fan unit 10 is attached is not subject to any restrictions on the drilling of holes other than the holes through which the fixing screws 51 pass. Therefore, the exhaust (or intake) hole 52 can be shaped to also function as an electromagnetic shield, and the housing can be provided with the EMC (Electro Magnetic Compatibility) performance required for the housing. In other words, the housing 5 is configured not to apply electromagnetic waves that can become interference waves to other devices, and not to receive interference electromagnetic waves from other devices.

[0044] [Effects of the embodiment] According to this mounting bracket, a flat portion 71 having a plurality of holes for intake or exhaust is provided with a stud portion 75 which is inserted into and fixed to a fixing hole 11 (first hole) formed in a surface (first surface) of the air-cooled fan 1 facing away from the wall surface of the housing 5, a screw receiving portion 72 which is provided opposite the stud portion 75 and to which a screw 51 which is inserted into a fixing hole 14 (second hole) formed in a surface (second surface) of the air-cooled fan 1 which contacts the wall surface of the housing 5 is fixed, and a connection portion 73 which connects the flat portion 71 and the screw receiving portion 72. This fixes the air-cooled fan inside the housing and prevents the wiring inside the housing from getting tangled. The mounting bracket 7 and the air-cooled fan 1 are connected by fixing the stud portion 75 to the first surface of the air-cooled fan 1 to form an integrated air-cooled fan unit 10 which can be attached to and detached from the housing 5 as a unit. The parts do not come apart during work, making it easy to work and improving work efficiency. [Industrial Applicability]

[0045] The present invention is suitable for a mounting bracket, an air-cooled fan unit, a wireless device, and an air-cooled fan installation method that have an anti-entanglement function, facilitate the installation / removal of an air-cooled fan, and improve work efficiency. [Explanation of symbols]

[0046]

[0033] 1... air-cooled fan, 2... entrapment prevention bracket, 3... nut, 4... fixing screw, 5... housing, 6... wiring, 7... mounting bracket, 10... air-cooled fan unit, 11,14... fixing hole, 13... stud nut, 52,70... hole, 51... screw, 71... flat portion, 72... screw receiving portion, 73... connection portion, 74... screw receiving nut, 75... stud portion, 76... through hole

Claims

1. A mounting bracket that is attached to an air-cooling fan inside a housing and prevents wiring inside the housing from becoming entangled, A flat surface having a plurality of holes for intake or exhaust of air; a stud portion provided on the flat portion and having a protrusion that is inserted into a first hole formed in a first surface that is a front surface of the air-cooling fan and fixed thereto; a screw receiving portion formed to face the stud portion and to which a screw inserted into a second hole formed in a second surface of the air-cooling fan that is in contact with the housing is fixed; and a connecting portion that connects the flat portion and the screw receiving portion.

2. An air-cooling fan unit that is attached to the inside of a housing, 2. An air-cooling fan unit according to claim 1, wherein said stud portion of said mounting bracket is inserted into a first hole of said air-cooling fan and fixed thereto.

3. A wireless device having a housing to which the cooling fan unit according to claim 2 is attached, A wireless device, characterized in that a screw inserted from outside the housing through a screw hole formed in the housing and a second hole in the air-cooling fan is fixed in the screw receiving portion.

4. A method for mounting a cooling fan to a housing, comprising the steps of: a protruding stud portion provided on a flat portion of a mounting bracket having a plurality of holes for intake or exhaust is inserted into and fixed to a first hole formed on a first surface, which is a front surface of the air-cooling fan; An installation method characterized in that a screw inserted from outside the housing through a screw hole formed in the housing and a second hole formed in a second surface of the air-cooled fan that is the back surface of the air-cooled fan and contacts the housing is fixed by a screw receiving portion connected to the flat portion.

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