JPH0742185U - Fan module - Google Patents

Abstract

(57) [Abstract] [Purpose] It is an object of the present invention to provide a fan module having two axial fans for cooling printed boards and the like, which enables active maintenance. [Structure] Two fan cases 15A and 15B that individually accommodate two axial fans 1A and 1B, respectively, and these two fan cases 15 that are separately arranged in the front and the rear.
A unit case 20 that removably accommodates A and 15B via the relay connector 5, and when the axial fan 1A arranged on the front side of the unit case 20 is replaced, the fan case is used. When the 15A is pulled forward and replaced, and the axial fan 1B arranged on the rear side of the unit case 20 is replaced, the fan case 15B is once pulled out forward, and then it is pulled out further from above. Configure to replace.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fan module equipped with two or more axial fans, and more particularly to a fan module capable of active maintenance for performing maintenance work without stopping the device.

[0002]

[Prior art]

 4 (a) and 4 (b) are a schematic plan view and a side sectional view of the main part showing a conventional structure of a fan module and its mounting example, and FIGS. 5 (a) and 5 (b) show a conventional fan module replacement method. FIG. 3 is a schematic plan view for explaining.

As shown in FIGS. 4A and 4B, the printed board 90 mounted on the device frame 80 is arranged adjacent to the lower air duct 81 and the upper air duct 82 of the device frame 80, respectively. It is cooled by two pairs (four) of fan modules 55. These fan modules 55 are two axial fans (hereinafter referred to as fans) 1A and 1B that operate by being electrically connected to a power supply circuit provided on the back panel 60 side through a power connector 3. The units are arranged in the front and rear of the unit case 20 in a vertically long shape to facilitate replacement work of the fan module 55. In the figure, 8 is a fixing screw for fixing the fans 1A and 1B to the unit case 20, and 56 is a handle used when the unit case 20 is inserted and removed.

The air α sucked in the direction of the arrow from the lower air duct 81 by the two pairs (four) of fan modules 55 arranged below and above the device frame 80 is printed on the back panel 60. While the plate 90 is being cooled, it is discharged from the upper air duct 82 to the rear of the device frame 80 as shown by the arrow.

A conventional fan module replacement method will be described below with reference to FIGS. 5 (a) and 5 (b). The conventional fan module 55 has a cassette structure in which two fans 1A and 1B are housed in one unit case 20, as described with reference to FIGS. 4 (a) and 4 (b). Therefore, even if either the fan 1A or 1B fails, the entire fan module 55 is replaced. FIG. 5A is a diagram showing the arrangement of the fan module 55 in a normal state, and FIG. 5B is a diagram showing a state in which one of the fan modules 55 is extracted from the device frame 80. When replacing the fan module 55, pull out the corresponding fan module 55 in the direction of the arrow and replace it.

If one of the two fan modules 55 is pulled out as shown in FIG. 5B, the flow rate of the air α flowing in the printed board mounting area Z is greatly reduced and at the same time, The flow path of the cooling air α is disturbed and the cooling efficiency of the printed board is significantly reduced.

[0007]

[Problems to be solved by the device]

 In the conventional fan module 55, if either the fan 1A or 1B fails, the entire fan module 55 must be replaced. However, if the fans 1A and 1B are removed from the printed board mounting area Z at the same time, the cooling efficiency of the printed board will be significantly reduced. Therefore, in the case of the conventional fan module 55, maintenance work is performed without stopping the device. Active maintenance could not be applied.

The present invention aims to realize a fan module capable of active maintenance.

[0009]

[Means for Solving the Problems]

 The fan module according to the present invention, as shown in FIG. 1, includes two fan cases 15A and 15B for independently accommodating two axial fans 1A and 1B, respectively. One unit case 20 that detachably accommodates the two fan cases 15A and 15B via the relay connector 5 is provided, and the axial fan 1A arranged on the front side of the unit case 20 is replaced. When the fan case 15A is pulled forward and replaced, and when the axial fan 1B arranged on the rear side of the unit case 20 is replaced, pull the fan case 15B forward and then from the upper side. The feature is that it is configured to be moved forward and replaced.

[0010]

[Action]

 The two fan cases 15A and 15B installed in this fan module are provided by separately accommodating the two fans 1A and 1B separately arranged in front of and behind the unit case 20, respectively. , 1B can be selectively exchanged. Further, the unit case 20 holds the two fan cases 15A and 15B detachably via the relay connector 5, thereby enabling independent replacement of the fans 1A and 1B.

[0011]

【Example】

 The present invention will be described in detail below with reference to the drawings. FIGS. 1 (a), (b) and (c) are schematic plan views of a main part and a cross-sectional view of the main part showing one embodiment of the present invention, and FIGS. 2 (a), (b) and (c) are FIG. 3 (a) and FIG. 3 (b) are a schematic plan view and a side sectional view of an essential part showing an application example of the present invention. The same parts as those in FIGS. 4 and 5 are designated by the same reference numerals.

As shown in FIGS. 1 (a), 1 (b) and 1 (c), a fan module 50 according to the present invention includes two fans 1A and 1B (hereinafter, these may be collectively referred to as a fan 1). ), And the two fan cases 15A and 15B, which are independently housed, and the two fan cases 15A and 15B, which are separately arranged in the front and the rear, can be attached and detached via the relay connector 5, respectively. When replacing the axial fan 1A arranged on the front side of the unit case 20, the fan case 15A is pulled out to the front to replace the unit case 20. When the axial fan 1B arranged on the rear side is to be replaced, the fan case 15B is once pulled out to the front and then moved further from above to the front for replacement. In the figure, 3 is a power connector for supplying power to the fan 1, 5 is a relay connector for electrically connecting the power connector 3 and the fan 1, and 10 is a partition plate provided between the fan cases 15A and 15B. Show.

In this fan module 50, the fans 1A and 1B are independently arranged in the two fan cases 15A and 15B, so that when one of the fans 1A and 1B fails, Can be selectively and freely removed from the device frame 80 and replaced (or repaired).

FIG. 1C is a diagram showing a procedure for pulling out the fans 1 A and 1 B to the front of the apparatus frame 80. As shown in FIG. 1 (c), when pulling out the fan 1A to the front of the device frame 80, if the fan case 15A housing the fan 1A is pulled forward to the front (direction of arrow A), the fan 1A and the power supply The relay connector 5 electrically connecting the connector 3 is removed, and the fan case 15A housing the fan 1A is pulled out of the device frame 80. Even at this time, the fan 1B housed in the fan case 15B continues to rotate.

When taking out the fan 1B, the fan case 15B in which the fan 1B is housed is once moved in the direction of arrow A to remove the relay connector 5 connecting the fan 1B and the power supply connector 3, and then The fan case 15B is moved from the upper side (direction of arrow B) to the front side (direction of arrow C) and pulled out in front of the device frame 80. At this time, the fan 1A housed in the fan case 15A continues to rotate.

By configuring the fan module 50 in this way, even if one of the fans 1 becomes inoperative, the other fan 1 continuously operates. As described above, the fan module 50 according to the present invention can selectively take out only the fan 1 that needs to be replaced, so that the damage when replacing the fan 1 is small. Therefore, in the case of the fan module 50 according to the present invention, active maintenance is possible.

Next, a modification of the present invention will be described with reference to FIGS. 2 (a), (b) and (c). As shown in FIGS. 2 (a), 2 (b) and 2 (c), this fan module 50A includes two fan cases 15A and 15B for independently accommodating two axial fans 1A and 1B, and a front side. And these two fan cases 15A and 15B, which are separately arranged in the rear, are detachably held via the power connector 3 and the relay connector 5, respectively, and these two box 7A and 7B. When replacing the axial fan 1A that is equipped with a pair of connecting arms 40 that mechanically connects and is housed in the fan case 15A on the front side, pull out the fan case 15A as it is and replace it. When replacing the axial fan 1B housed in the side fan case 15B, the fan case 15B is pulled out to the front while the box 7A is lifted up via the connecting arm 40 and replaced. Is made.

This fan module 50A includes a box 7A and 7B indirectly holding two fan cases 15A and 15B that individually house two fans 1A and 1B, which are separately arranged on the front side and the rear side. The two fans 1A and 1B can be independently taken out by being equipped, and the two boxes 7A and 7B are mechanically connected by the connecting arm 40 so as to be held by the box 7B on the rear side. The feature of the structure is that the fan case 15B that is installed is easily taken out.

Finally, an application example of the present invention will be described with reference to FIGS. 3 (a) and 3 (b). As shown in FIGS. 3 (a) and 3 (b), this fan module 50B has a turnable structure that holds a plurality of fan cases 15 that individually hold the axial flow fans 1, respectively. When replacing a specific axial fan 1 among the plurality of axial fans 1 arranged on the turntable 70 in such a manner that the table 70 is mounted and removed radially, The turntable 70 is rotated to guide the fan case 15 that holds the axial fan 1 to the fan outlet 88 provided in the front portion of the apparatus frame 80, which is pulled out in the direction of arrow A to be replaced.

In this fan module 50B, each fan case 15 is arranged on the turntable 70 that rotates in the direction of the arrow RR ′ about the center axis 77 as a rotation center, so that the fan case 15 can be easily attached and detached. is there. In the figure, 85 is a stopper arranged on the device frame 80 side, 71 is a stopper arranged on the turntable 70 side, and these stoppers 71 and 85 rotate the turntable 70 by 360 degrees or more. By doing so, the cable 4 connected to the power connector 3 is provided to prevent the cable 4 from being twisted and causing a disconnection accident.

Since each of the fan modules 50, 50A, 50B according to the present invention is configured to selectively take out only a specific fan 1 from the plurality of fans 1, the activity of the fan module is increased. Maintenance is possible.

[0022]

[Effect of device]

 As is clear from the above description, the fan module according to the present invention is configured so that only a specific fan can be selectively taken out of the plurality of fans arranged inside, Active maintenance of the fan module is possible.

[Brief description of drawings]

FIG. 1 is a schematic plan view and a side sectional view of an essential part showing an embodiment of the present invention,

FIG. 2 is a schematic plan view showing a modified example of the present invention and a side view of a main part,

FIG. 3 is a schematic plan view and a side sectional view of an essential part showing an application example of the present invention;

FIG. 4 is a schematic plan view showing a structure of a conventional fan module and an example of mounting the fan module, and a side sectional view of essential parts;

FIG. 5 is a schematic plan view for explaining a conventional fan module replacement method,

[Explanation of symbols]

 1, 1A, 1B Fan 3 Power connector 4 Cable 5 Relay connector 7A, 7B Box 8 Fixing screw 10 Partition plate 15, 15A, 15B Fan case 20 Unit case 27 Rail 30 Guide 40 Connecting arm 41 Pin 43, 71, 85 Stopper 50 , 50A, 50B, 55 Fan module 56 Handle 60 Back panel 70 Turntable 77 Center axis 80 Device frame 81 Lower air duct 82 Upper air duct 88 Fan outlet 90 Print board α Air Z Print board mounting area

Claims (3)

[Scope of utility model registration request] 1. A fan module comprising two axial fans (1A) and (1B) mounted in front and rear, wherein the axial fans (1A) and (1B) are housed independently of each other. Two fan cases (15A), (15B) and these two fan cases (15A), which are separately arranged in the front and the rear,
(15B) via a relay connector (5) and a detachable housing for each unit case (20), and the axial fan (1A) placed on the front side of the unit case (20). When replacing the fan case (15A), pull it out forward to replace it.When replacing the axial fan (1B) located on the rear side of the unit case (20), temporarily replace the fan case (15B). A fan module characterized in that after being pulled out to the front, the fan module is further moved from the upper side to the front side for replacement. 2. A fan module comprising two axial fans (1A) and (1B) mounted in front and rear, wherein the two axial fans (1A) and (1B) are independent of each other. Two fan cases (15A) and (15B) to be housed, and these two fan cases (15A and 15B) which are separately arranged in the front and the rear.
Two boxes (7A), (7A), (7B) holding (A), (15B) detachably via the power connector (3) and the relay connector (5), respectively.
B) and a pair of connecting arms (40) for mechanically connecting the two boxes (7A) and (7B), and the axial fan (15A) housed in the front fan case (15A) 1A) is replaced by pulling the fan case (15A) forward and replaced, and when replacing the axial fan (1B) housed in the rear fan case (15B), the connecting arm
A fan module, characterized in that after the box (7A) is lifted up via the (40), the fan case (15B) is pulled out forward for replacement. 3. A fan module equipped with a plurality of axial fans (1), comprising a plurality of fan cases (15) for independently holding the axial fans (1). The turntable (70) is provided so as to be rotatable.
0) When replacing a specific axial fan (1) among the plurality of axial fans (1) arranged above, the turntable (70) is rotated and the axial fan (1) is rotated. The fan module is characterized in that the fan case (15) for holding the () is guided to the fan outlet (88) provided in the front part of the device frame (80) for replacement.