JP2857790B2 - Fan mounting structure - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a fan mounting structure for mounting a cooling fan to a support frame.

(Conventional technology and its disadvantages)

Generally, a fan that cools the inside of the apparatus includes a substantially rectangular frame body and a blade body rotatably mounted on the frame body. Through holes are formed in the four corners of the frame main body, and screw holes are formed in the support frame corresponding to the respective through holes, and mounting screws are screwed into the screw holes through the through holes. This allows the fan to be mounted on the support frame as required.

However, the conventional mounting structure requires four mounting screws, which increases the manufacturing cost. In addition, these mounting screws must be screwed in for mounting, and the mounting operation is complicated. Should depend on the problem.

[Object of the invention]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and a main object thereof is to provide a fan mounting structure in which a fan can be mounted with a relatively simple configuration and with a relatively simple operation. .

[Summary of the Invention]

In the fan mounting structure of the present invention, the fan includes a main body that covers an outer peripheral portion of the blade, a frame main body on which the blade is rotatably mounted, and axially located at both ends in the axial direction of the main body. A pair of end walls that are vertical and at least a part of the outer circumference is a flat portion, and a pair of locking portions are provided at both ends of the flat portion between the end walls and have recesses that open outward at both ends,
One of the locking portions is locked to the support frame by a first working piece provided integrally with the support frame abutting from the outside through the recess, and the other locking portion is
A second working piece detachably mounted on the support frame by a mounting tool is engaged with the support frame through the recess from the outside, and is locked to the support frame.

Further, in the fan mounting structure of the present invention, the fan includes a frame body on which the blade body is rotatably mounted, and the frame body includes a body portion covering an outer peripheral portion of the blade, and both ends in the axial direction of the body portion. A pair of end walls which are located perpendicular to the axial direction and at least a part of the outer periphery of which is a flat portion, and a first locking portion which is located at one end of the flat portion of the end wall and has a recess which opens outward. A second locking portion is provided at the other end of the flat portion of the end wall and has a fan-side through-hole penetrating the pair of end walls, and the first locking portion is provided on the support frame. A first working piece provided integrally is engaged with the support frame by contacting the recess from the outside through the recess, and the second locking portion sandwiches the pair of end walls from the outside in the axial direction. A second working piece integrally provided with the support frame at a position Is fixed to the support frame by inserting the pin-shaped member on the emission side through holes and the device-side through-hole.

[Specific examples of the invention]

 Hereinafter, this will be described in more detail with reference to the accompanying drawings.

First Specific Example FIGS. 1 and 2 show a first specific example of a fan mounting structure according to the present invention.

In FIG. 1, the illustrated fan includes a substantially rectangular frame body 2. The frame main body 2 includes a main body 4 existing in an outer peripheral portion, a blade mounting portion 6 existing substantially in a central portion,
It has a plurality of connecting parts 8 for connecting the main body part 4 and the blade mounting part 6. Since both end walls 18 and 19 described later are substantially rectangular, they have flat portions on four sides. Wing body 10
Is rotatably mounted on the frame body 2. Feather body
Reference numeral 10 denotes a central body (not shown) having a circular shape, and a plurality of blades 12 extending radially outward from the central body at intervals in the circumferential direction. A member (not shown) is rotatably supported by the blade mounting portion 6 of the frame main body 2 via bearing means. Although not shown,
A stator is disposed on the blade mounting portion 6, and an eight-rotor magnet is mounted on the central body of the blade body 10 in proximity to the stator. The above-described configuration of the fan is substantially the same as the known configuration, and the blade body 10 is rotated by supplying a current to the armature coil of the stator as required.

Referring to FIG. 2 together with FIG. 1, the manner of mounting the fan will be described. In the first specific example, locking portions 14 and 16 are provided at lower corners (both ends of the flat portion) of the frame main body 2. In the example shown in the figure, the locking portions 14 and 16 extending toward the corners are formed integrally by hollowing the vicinity of both sides of the corners of the frame body 2 in a substantially triangular shape. Locking part
Reference numerals 14 and 16 are formed between both end walls 18 and 19 of the frame body 2, and one side surfaces 14a and 16a (upper surfaces in FIG. 1) of the locking portions 14 and 16 act as locking surfaces as described later. I do.

The support frame 20 to which the fan is attached (for example, a copy frame, a word processor, a support frame of a personal computer, etc.)
A working tongue piece (functioning as a first working piece) 22 and a female screw hole are formed. The action tongue piece 22 is formed by cutting and raising a part of the support frame 20, and extends linearly upward from the support frame 20 by a predetermined angle. A fixing member 26 (functioning as a second action piece) is detachably attached to the female screw hole by a mounting screw 24. The fixing member 26 has a base 28 attached to the support frame 20, and an action section 30 linearly extending upward from the base 28 by a predetermined angle.

Attach the fan as follows. First, the fan is placed on the support frame 20 and moved in the direction indicated by the arrow 32 (to the left in FIG. 1), so that the operating tongue piece 22 of the support frame 20 and one of the locking portions 14 of the frame main body 22 are connected. Engage. Next, the action portion 30 of the fixing member 26 is caused to act on the other locking portion of the frame main body 2, and the base 28 of the fixing member 26 is attached to the support frame 20 by the attachment screw 24 in the state of the action. Thus, the frame body 2 of the fan is held at a predetermined position by the action tongue piece 22 and the fixing member 26, and the frame body 2 is fixed on the support frame 2. In the solid heel state, since the pair of locking portions 14 and 16 of the fan are located between the operating tongue 22 and the fixing member 26, the operating tongue
The movement of the fan in the left-right direction and the movement in the vertical direction in FIG. In addition, since the operation tongue 22 and the fixing member 26 are located between both end walls 18 and 19 of the frame body 2 of the fan, these operation tongues
The movement of the fan in the direction perpendicular to the plane of FIG. 1 is reliably prevented by the fixing member 22 and the fixing member 26.

In order to fix the fan more securely, it is preferable that the fixing member 26 is made of, for example, a leaf spring and held at a predetermined position by the elastic force of the fixing member 26. Instead of the fixing member 26, the working tongue piece 22 may have elasticity, and the fixing member 26 and / or the working tongue piece 22 (the surface acting on the locking portions 14 and 16) may be formed in a sheet shape. A rubber material may be provided.

FIG. 3 shows a modification of the fixing member. In FIG. 3, the illustrated fixing member 26 'is composed of a wire-like member, the base 28' of which is substantially U-shaped, and its action portion 30 'is provided at predetermined positions from both ends of the base 28'. The fixing member 26 'is inclined in the upward direction and extends linearly. Such a fixing member 26' is used in place of the fixing member 26 shown in FIGS.
8 'is the washer 34 and the mounting screw 24 as shown in FIG.
To the support frame 20. Also in this modification, it is preferable that the action portion 30 'of the fixing member 26' be somewhat elastically deformed.

Second Specific Example FIGS. 4 and 5 show a part of a second specific example of the fan mounting structure according to the present invention. 1 and 2
The same members as those in the specific example shown in the drawings will be described with the same numbers.

4 and 5, the basic configuration of the fan in the second specific example is substantially the same as that of the first specific example, and a pair of lower corner portions of the rectangular frame body 2 are provided. (Only the second locking portion is shown in FIGS. 4 and 5). A through-hole 42 (which functions as a fan-side through-hole) extending in the axial direction (the direction perpendicular to the plane of FIG. 4 and the vertical direction in FIG. 5) is formed in one of the pair of locking portions 16. (The end wall of the frame body 2 also penetrates.) The support frame 20 to which the fan is attached is provided with a pair of fixing members 44 and 46 corresponding to one of the locking portions 16 and the other. An operating tongue (not shown) similar to that of the first embodiment is provided corresponding to the locking portion (corresponding to the first locking portion). Can be formed from resin,
It is fixed to the support frame 20 with an adhesive at predetermined intervals. These fixing members 44 and 46 can be fixed by outsert molding. The fixing members 44 and 46 are formed with through holes 48 and 50 (functioning as device-side through holes) corresponding to the through holes 42 of the frame body 2. The working tongue piece can be formed by cutting and raising a part of the support frame 20, as in the first specific example.

To install the fan in the second specific example,
The fan is placed on the support frame 20 and moved to the left in FIG. 4, so that the operating tongue (not shown) of the support frame 20 and the other engagement piece (not shown) of the fan are engaged. At the same time, the lower right portion of the fan in FIG. 4 is positioned between the pair of fixing members 44 and 46. Next, a pair of fixing members
44 and 46 through holes 48 and 50 and frame body 2 through hole 42
And the fixing pin 52 (acting as a pin-like member) is inserted through the through holes 42, 48 and 50. Thus, the movement tongue and the fixing pin 52 of the support frame 20 prevent the frame body 2 from moving in the left-right direction and the movement in the vertical direction in FIG. The movement of the main body 2 in the direction perpendicular to the paper surface in FIG. 4 is prevented, so that the fan is held at a predetermined mounting position. In the second specific example, the working tongue (not shown) can be made elastic to securely fix the fan.

As described above, specific examples of the fan mounting structure according to the present invention have been described. However, the present invention is not limited to these specific examples, and various changes and modifications can be made without departing from the scope of the present invention.

For example, the shape and the like of the locking portion provided on the frame main body and the acting tongue piece and / or the fixing member acting on the locking portion can be appropriately selected.

[Brief description of the drawings]

FIG. 1 is a front view showing a first specific example of a fan mounting structure according to the present invention. FIG. 2 is a partial plan view showing the fixing member and its vicinity in the fan mounting structure of FIG. 1 as viewed from above. FIG. 3 is a partial plan view showing a modification of the fixing member. FIG. 4 is a partial front view showing a part of a second specific example of the fan mounting structure according to the present invention. FIG. 5 is a sectional view taken along line VV in FIG. 2 Frame body 10 Blades 14 and 16 Locking portion 20 Support frame 22 Working tongue 26 Fixing member 42 Through holes 44 and 46 Fixing members 48 and 50 … Through-hole 52 …… fixing pin

Claims (2)

(57) [Claims] 1. A fan mounting structure for mounting a fan on a support frame of an apparatus, wherein the fan includes a frame body on which a blade body is rotatably mounted, and the frame body includes an outer peripheral portion of the blade body. A body portion to be covered, a pair of end walls positioned at both ends in the axial direction of the body portion and perpendicular to the axial direction, at least a part of the outer periphery of which is a flat portion, and located at both ends of the flat portion between the end walls. A pair of locking portions having recesses opening outward at both ends are provided, and one of the locking portions is configured such that a first working piece integrally provided on the support frame abuts from the outside through the recesses. Is locked to the support frame, and the other locking portion is
A fan mounting structure, wherein a second action piece detachably mounted on the support frame by a mounting tool is engaged with the support frame by contacting the recess from the outside through the recess. 2. A fan mounting structure for mounting a fan on a support frame of an apparatus, wherein the fan includes a frame body on which a blade body is rotatably mounted, and the frame body includes an outer peripheral portion of the blade body. A main body portion to be covered, and a pair of end walls located at both ends in the axial direction of the main body portion and perpendicular to the axial direction and at least a part of the outer periphery is a flat portion,
A first locking portion which is located at one end of the flat portion of the end wall and has a recess which opens outward, and a fan side penetration which is located at the other end of the flat portion of the end wall and penetrates the pair of end walls. A second locking portion having a hole is provided, and the first locking portion is provided on the support frame by a first working piece provided integrally with the support frame coming into contact with the outside through the recess. And the second locking portion is
A second operating piece having a device-side through-hole provided integrally with the support frame at a position sandwiching the pair of end walls from the outside in the axial direction has a pin-shaped member in the fan-side through-hole and the device-side through-hole. Is fixed to the support frame by inserting
A fan mounting structure characterized in that: