JP5670868B2 - Cooling air leakage prevention structure of shelf - Google Patents

Description

  The present invention relates to a cooling air leakage prevention structure for a shelf, and more particularly to a cooling air leakage prevention structure for a shelf that prevents leakage of cooling air from a unit non-mounting slot.

  Today, transmission devices are divided into multiple units with communication functions in order to distribute failure risks, to quickly maintain failure points, and to make it easier to expand the functions of the devices. Thus, a mechanism for individually inserting into and removing from the slot of the shelf is provided. In addition, since electronic parts such as semiconductors are mounted on the unit, in order to cool the heat generated from these electronic parts, a fan unit is mounted on the shelf and these electronic parts are cooled by the ventilation of the fan. .

  It is important that the cooling of the units is configured so that the cooling efficiency is uniform. For example, for maintenance, one unit (not shown) from a plurality of units 3 mounted on the shelf 1 as shown in FIG. ) Is removed, the unit non-mounting slot (empty slot at which the unit is removed) 5 becomes an opening, and most of the cooling air W from the fan (not shown) leaks to the outside and is mounted around There is a problem that hinders cooling of the unit 3.

  Therefore, conventionally, when an operator removes the unit, a lid called a filler is attached to the opening of the unit non-mounting slot to prevent cooling air from leaking.

  Further, in Patent Document 1, as shown in FIGS. 10 to 12, a storage frame 11 having an upper frame 7 and a lower frame 9, and a guide rail disposed so as to face the upper frame 7 and the lower frame 9. 13 and a unit 15 that can be inserted / removed by guiding the guide rail 13, storing the plurality of units 15 in the storage frame 11, and improving the shelf 17 that allows the cooling air W to pass through each of the units 15. A bellows 19 that is expanded and contracted along the guide rail 13 so as to form a closed state that blocks ventilation of the cooling air W by removal of the unit 15 and forms an open state that opens ventilation of the cooling air W by insertion of the unit 15. A shelf 17 is disclosed in which a frame is disposed on an upper frame 7 and a lower frame 9. In FIG. 10, reference numerals 21 and 23 denote fan units disposed on the upper frame 7 and the lower frame 9.

JP-A-7-231186

  However, the filler is complicated to manage and there is a risk of forgetting to install it due to a work mistake.

  On the other hand, the shelf 17 shown in FIG. 10 and below has a drawback that the entire shelf 17 is enlarged due to the structure in which the upper frame 7 and the lower frame 9 for accommodating the thick bellows 19 are provided above and below the storage frame 11. . That is, since the size of the transmission device is determined and the mounting volume of the structure is limited, the storage frame 11 cannot be reduced to a predetermined volume or less. For this reason, by providing the upper frame 7 and the lower frame 9 on the upper and lower sides of the storage frame 11, the entire shelf 17 is increased in size.

  Although not shown, a ventilation path is formed between the bellows 19 disposed on the upper frame 7 and the lower frame 9, and an inlet is formed on the bellows 19 disposed on the lower frame 9. As shown in the figure, when the unit 15 is removed, cooling air is taken into the bellows 19 disposed on the lower frame 9 from the intake, and at the same time, the cooling air is blown to the bellows 19 on the upper frame 7 side through the ventilation path. In addition, since both of the bellows 19 have a complicated configuration in which the bellows 19 are distracted, it has been pointed out that the maintenance takes time and the manufacturing cost increases.

  The present invention has been devised in view of such circumstances, and provides a cooling air leakage prevention structure for a shelf that prevents leakage of cooling air from a unit non-mounting slot and that has a simple structure and does not require maintenance. With the goal.

In order to achieve such an object, the cooling air leakage prevention structure for a shelf according to the present invention is provided by cooling a fan from a ventilation opening provided in each slot to a plurality of units of a removable transmission device housed in each slot. A shelf for ventilating the wind, and a slide plate for opening and closing the vent opening is provided in each slot, and a locking member for locking the unit is provided on the slide plate, and interlocked with insertion / extraction of the unit a slide plate slidably configured, by removal of the unit from the slot to close the ventilation openings in the slide plate, the insertion of the unit into pre-SL slot, opens the ventilation openings in the slide plate The locking member is a locking piece formed at the distal end of the slide plate on the insertion side, and presses and urges the slide plate between the slide plate and the back side wall of the shelf. Spring characterized in that it is stretched.

Further, the cooling air leakage prevention structure of the shelf according to the present invention allows the cooling air to be ventilated by a fan from a ventilation opening provided in each slot to a plurality of units of the removable transmission device housed in each slot. In addition, a slide plate that opens and closes the ventilation opening is disposed in each slot, and a locking member that locks the unit is provided on the slide plate, and the slide plate is slid in conjunction with insertion and removal of the unit. The ventilation port is closed with the slide plate when the unit is removed from the slot, and the ventilation port is opened with the slide plate when the unit is inserted into the slot. The elastic holding member is formed with a pair of elastic holding pieces for holding the insertion side end of the slot when the unit is inserted into the slot .

Further, the cooling air leakage prevention structure of the shelf according to the present invention allows the cooling air to be ventilated by a fan from a ventilation opening provided in each slot to a plurality of units of the removable transmission device housed in each slot. In addition, a slide plate that opens and closes the ventilation opening is disposed in each slot, and a locking member that locks the unit is provided on the slide plate, and the slide plate is slid in conjunction with insertion and removal of the unit. The ventilation port is closed with the slide plate when the unit is removed from the slot, and the ventilation port is opened with the slide plate when the unit is inserted into the slot. A link mechanism that is mounted between the slide plate and the back side wall of the shelf via a hinge, bends upward when the unit is inserted, and extends when the unit is removed. The bottom of the serial unit, together with the recess linkage bent upward is engaged is formed, on the rear side of the unit, that the projecting piece for locking the slide plate upon insertion into the slot is formed Features.

According to the cooling air leakage prevention structure according to the present invention , since the inflow of the cooling air by the fan to the unit non-mounting slot is blocked, the cooling air leaks to the outside from the opening of the unit non-mounting slot from which the unit is removed. There is no end.

  Therefore, there is no possibility of hindering the cooling of the unit mounted in another slot, and the air vent is automatically opened and closed by the slide plate when the unit is inserted / removed. It is possible to prevent it reliably.

  In addition, the structure in which the thin slide plates are slidably arranged has the advantage that the shelf is not increased in size, the structure is extremely simple, maintenance is not required, and the manufacturing cost is low.

1 is an overall perspective view of a shelf including a cooling air leakage prevention structure according to an embodiment of the present invention . It is a top view explaining operation | movement of a cooling air leakage prevention structure. It is a top view explaining operation | movement of a cooling air leakage prevention structure. It is sectional drawing of the shelf of FIG. It is the front view, top view, and side view of a clamping member used for the cooling wind leakage prevention structure which concerns on another embodiment in this invention . It is a principal part top view explaining operation | movement of a cooling air leak prevention structure. It is a side view explaining operation | movement of the link mechanism used for the cooling wind leakage prevention structure which concerns on another embodiment in this invention . It is a principal part side view explaining the operation | movement of a cooling air leakage prevention structure. It is a whole perspective view of the conventional shelf. It is a whole perspective view of the conventional shelf provided with the cooling air leakage prevention structure. It is sectional drawing of the shelf of FIG. 10 which shows operation | movement of a cooling air leakage prevention structure. It is sectional drawing of the shelf of FIG. 10 which shows operation | movement of a cooling air leakage prevention structure.

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

1 to 4 show an embodiment of the present invention. In FIG. 1, reference numeral 31 denotes a shelf, and the shelf 31 includes a plurality of units of function-divided transmission apparatuses (reference numeral 33 in FIG. 4). A plurality of slots 35 are defined by partition walls 37. Then, a rectangular insertion hole 41 is formed in the bottom 39 of each slot 35, and a fan unit 43 for passing cooling air is attached to each slot 35 below the shelf 31 as shown in FIG. Yes.

  2 to 4 show details of the cooling air leakage prevention structure 45 according to the present embodiment. In FIG. 2, reference numeral 47 denotes a thin fixing plate fitted into the insertion hole 41. The ventilation holes 49 having a rectangular shape in plan view are opened at equal intervals.

  Further, a thin slide plate 51 having the same size as that of the fixed plate 47 is disposed on the fixed plate 47, and a vent hole 53 having the same size corresponding to the vent hole 49 is located at the same position on the slide plate 51. Is provided. Then, when the four corners of the fixed plate 47 and the slide plate 51 coincide as shown in FIG. 3, the air vents 49 and 53 overlap and open, and as shown in FIG. When the slide plate 51 is slid in the direction of removal 33), the air vent 49 on the fixed plate 47 side is gradually closed by the slide plate 51.

  The slide plate 51 is guided and held by a pair of left and right guide members 55 provided on the bottom portion 39 of the slot 35. As a result of the slide plate 51 being held by the guide member 55 in this manner, ventilation from the fan is performed. The slide plate 51 is not blown upward.

  On the other hand, as shown in FIGS. 2 to 4, a locking piece (locking member) 57 bent upward is provided at the insertion-side end of the slide plate 51, and the slide plate 51 and the back side of the shelf 31 are further provided. A spring 61 that presses and urges the slide plate 51 in the direction of arrow A is stretched between the back wire board 59 mounted on the side wall, and when the unit 33 is removed from the slot 35, as shown in FIG. The slide plate 51 is moved in the direction of arrow A by the spring force of the spring 61 so that the slide plate 51 closes the ventilation port 49 on the fixed plate 47 side.

  As shown in FIG. 4, when the unit 33 is inserted into the slot 35, the distal end of the insertion side of the unit 33 is locked to the locking piece 57, and in this state, the unit 33 resists the spring force of the spring 61. As 33 is further inserted, the slide plate 51 moves in the direction of arrow B in FIG. Then, when the unit 33 is housed in the slot 35 and the connector 63 on the unit 33 side is connected to a connector (not shown) on the back wire board 59 side, as shown in FIG. The four corners 51 coincide with each other so that the ventilation openings 49 and 53 overlap each other.

  Further, in this state, the unit 33 is removed from the slot 35 and at the same time, the slide plate 51 is moved again in the direction of arrow A by the spring force of the spring 61 as shown in FIG. 49 is closed. In addition, in FIG. 2, reference numeral 65 denotes a guide rail that guides the unit 33 when the unit 33 is inserted and removed. Although not shown, an exhaust hole is provided on the upper surface of the shelf 31.

  Since the cooling air leakage prevention structure 45 according to the present embodiment is configured in this way, in the state where the unit 33 is not housed in the slot 35, the slide plate 51 has the spring force of the spring 61 as shown in FIG. Thus, the slide plate 51 closes the ventilation port 49 on the fixed plate 47 side.

  As shown in FIG. 4, when the unit 33 is inserted into each slot 35, the insertion side tip of the unit 33 is locked to the locking piece 57 in the slot 35, and in this state, the spring force of the spring 61 is reduced. If the unit 33 is further inserted against it, the slide plate 51 moves in the direction of arrow B in FIG. When the unit 33 is housed in the slot 35 and the connector 63 is connected to the connector on the back wire board 59 side, as shown in FIG. 3, the four corners of the fixed plate 47 and the slide plate 51 coincide with each other. The mouths 49 and 53 overlap.

  For this reason, when the fan of the fan unit 43 is driven, the cooling air from the fan flows into the slot 35 through the vent holes 49 and 53, and the unit 33 is cooled. And the cooling air which cooled the unit 33 is exhausted from the exhaust hole provided in the upper surface of the shelf 31. FIG.

  Further, when one unit 33 is removed for maintenance, for example, while the unit 33 in each slot 35 is cooled by the cooling air from the fan, at the same time, as shown in FIG. The slide plate 51 is moved in the direction of arrow A by the spring force, and the slide plate 51 closes the ventilation port 49 on the fixed plate 47 side.

  As a result, the inflow of the cooling air from the fan to the unit non-mounting slot 35 is blocked, and the cooling air does not leak outside through the opening of the unit non-mounting slot 35 from which the unit 33 is removed.

  Therefore, according to the present embodiment, there is no possibility that the cooling of the unit 33 mounted in the other slot 35 is hindered, and the ventilation port 49 of the fixed plate 47 is automatically opened by the slide plate 51 as the unit 33 is inserted and removed. As a result, the cooling air leakage from the unit non-mounting slot 35 can be reliably prevented.

  Further, in the present embodiment, the shelf 31 is not increased in size as compared with the conventional example shown in FIG. 10 and subsequent figures, because the thin slide plate 51 is slidably disposed on the thin fixed plate 47. Compared to the conventional example, the structure is extremely simple, maintenance is not required, and the manufacturing cost is low.

5 and 6 show a cooling air leakage prevention structure in accordance with another embodiment of the present invention, in this embodiment, instead of the locking piece 57 and the spring 61, the insertion-side front end of the slide plate 51, A rubber clamping member (locking member) 67 as shown in FIG. 5 is mounted. In addition, since the other structure except an invention part is the same as embodiment mentioned above , the same code | symbol is attached | subjected to the same thing and those description is abbreviate | omitted.

  As shown in the front view, plan view, and side view of FIGS. 5A, 5B, and 5C, the clamping member 67 includes a rectangular parallelepiped base 69 attached on the slide plate 51 and the base. A pair of elastic clamping pieces 71 and 73 having a trapezoidal shape in plan view formed integrally on the upper surface thereof along the left and right sides of the base 69, and as shown in FIGS. Are successively narrowed in the unit insertion direction. Then, as shown in FIG. 6, when the unit 33 is inserted into the slot 35, the leading end of the unit 33 on the insertion side is inserted into the gap 75 between the elastic clamping pieces 71 and 73 by being guided by the guide rail 65. The holding pieces 71 and 73 are lightly held.

  Therefore, when the unit 33 is further inserted into the slot 35, the slide plate 51 is moved in the unit insertion direction in conjunction with this, so that the unit 33 is accommodated in the slot 35 and the connector 63 is connected to the back wire board 59 side. When the connector is connected to the connector, the fixed plate 47 and the slide plate 51 coincide with each other so that the vent holes 49 and 53 overlap each other as in the above embodiment. At this time, the distal end of the unit 33 on the insertion side is firmly held by the elastic holding pieces 71 and 73.

  Further, when the unit 33 is removed from the slot 35 in this state, the slide plate 51 is moved in the unit removal direction in conjunction with this, and the ventilation port 49 on the fixed plate 47 side is closed. When the unit 33 is removed from the slot 35, the slide plate 51 remains moved to the opening side of the unit non-mounting slot 35.

  After that, when the unit 33 is again inserted into the slot, as described above, the guide rail 65 guides the insertion end of the unit 33 to be inserted into the interval 75 between the elastic clamping pieces 71 and 73. Both elastic clamping pieces 71 and 73 are lightly clamped.

  Since the cooling air leakage prevention structure 77 according to the present embodiment is configured in this way, the inflow of the cooling air from the fan to the unit non-mounting slot 35 is blocked, and the unit non-mounting slot 35 in which the unit 33 is removed is removed. Cooling air does not leak outside through the opening.

  Therefore, also in this embodiment, the intended purpose can be achieved as in the above-described embodiment, there is no possibility of hindering cooling of the unit 33 mounted in the other slot 35, and the insertion / removal of the unit 33 is possible. As a result, the air vent 49 of the fixed plate 47 is automatically opened and closed by the slide plate 51, so that it is possible to reliably prevent cooling air leakage from the unit non-mounting slot 35.

  Further, due to the structure in which the thin slide plate 51 is slidably disposed on the thin fixed plate 47, the shelf 31 is not increased in size as compared with the conventional example of FIG. The structure is extremely simple, maintenance is not required, and manufacturing costs are low.

7 and 8 show a cooling air leakage prevention structure according to another embodiment of the present invention . This embodiment replaces the holding member 67 described above with a slide plate 51 and a back wire board 59 via a hinge 79. FIG. A link mechanism 87 including three stays 81, 83, and 85 is provided between the two.

  In addition, since this embodiment also has the same configuration as that of the embodiment of FIG. 1 except for the invention part, the same components are denoted by the same reference numerals, and description thereof is omitted.

  FIGS. 7A, 7B, and 7C are side views showing the operation of the link mechanism 87 when the unit 33 is not mounted, inserted, and mounted, as shown in FIG. 7A. The link mechanism 87 extends when the unit 33 is not mounted. However, as shown in the drawing, the link mechanism 87 is provided with a slight play L. When the link mechanism 87 is pressed in the direction of arrow C (unit insertion direction) as shown in FIGS. 7B and 7C, the connecting portion of the two stays 81 and 83 moves upward, The entire link mechanism 87 is configured to bend upward.

  On the other hand, as shown in FIG. 8, a concave portion 89 is formed at the bottom of the unit 33-1 to engage the link mechanism 87 bent upward as shown in FIG. On the side, a protruding piece 91 is formed which is engaged with the rear end side of the slide plate 51 when inserted into the slot 35.

  When the unit 33-1 is inserted into the slot, the projecting piece 91 is locked to the rear end side of the slide plate 51. Accordingly, the link mechanism 87 is moved as shown in FIG. ) To bend upward sequentially as shown in FIG. When the unit 33-1 is housed in the slot 35 and the connector 63 is connected to the connector on the back wire board 59 side, the bent link mechanism 87 is engaged with the recess 89 as shown in FIG. As in the above-described embodiment, the fixed plate 47 and the slide plate 51 coincide with each other so that the ventilation ports 49 and 53 overlap each other.

  On the other hand, when the unit 33 is removed from the slot 35 in this state, the link mechanism 87 locked to the recess 89 extends from FIG. 7 (c) to FIG. 7 (b) and FIG. 7 (a). The slide plate 51 is moved in the unit removal direction to close the ventilation port 49 on the fixed plate 47 side. When the unit 33 is removed, the slide plate 51 remains moved to the opening side of the unit non-mounting slot 35.

  Thereafter, when the unit 33 is inserted into the slot again, the protrusion 91 is locked to the rear end side of the slide plate 51 as described above, and the link mechanism 87 is moved along with the movement of the unit 33-1. Is sequentially bent upward as shown in FIG. 7 (a) to FIG. 7 (b).

  Since the cooling air leakage prevention structure 93 according to the present embodiment is configured as described above, the inflow of cooling air from the fan to the unit non-mounting slot 35 is blocked, and the unit non-mounting slot from which the unit 33-1 has been removed is removed. Cooling air does not leak outside through the opening 35.

  Therefore, according to the present embodiment, the intended purpose can be achieved as in the above-described embodiments, and there is no possibility that the cooling of the unit 33-1 mounted in the other slot 35 may be hindered. As a result of the insertion and removal of 33-1, the air vent 49 of the fixed plate 47 is automatically opened and closed by the slide plate 51, so that it is possible to reliably prevent cooling air leakage from the unit non-mounting slot 35.

  Further, due to the structure in which the thin slide plate 51 is slidably disposed on the thin fixed plate 47, the shelf 31 is not increased in size as compared with the conventional example of FIG. The structure is extremely simple, maintenance is not required, and manufacturing costs are low.

In each of the above embodiments, the case where the fan unit is mounted on the lower side of the shelf has been described. However, the present invention can also be applied to the case where the fan unit is mounted on the upper portion of the shelf.
Thus, in this case, the fixed plate and the slide plate are mounted on the upper surface of the shelf.

31 Shelf 33 Unit 35 Slot 37 Bulkhead 41 Insertion hole 43 Fan unit 45, 77, 93 Cooling air leakage prevention structure 47 Fixing plate 49, 53 Ventilation port 51 Slide plate 55 Guide member 57 Locking piece (locking member)
59 Back wire board 61 Spring 63 Connector 65 Guide rail 67 Holding member (locking member)
69 Base 71, 73 Elastic clamping piece 75 Distance 79 Hinge 81, 83, 85 Stay 87 Link mechanism 89 Recess 91 Projection piece

Claims (3)

A shelf that allows cooling air to be ventilated by a fan from a ventilation opening provided in each slot to a plurality of units of a transmission device that can be inserted and removed, which is accommodated in each slot,
A slide plate that opens and closes the vent is disposed in each slot, and a locking member that locks the unit is provided on the slide plate so that the slide plate can be slid in conjunction with the insertion and removal of the unit. ,
The removal of the unit from the slot, said closing the ventilation openings in the slide plate, the insertion of the unit into pre-SL slot, opening the vent in the slide plate,
The locking member is a locking piece formed at the distal end of the slide plate on the insertion side, and a spring that presses and urges the slide plate is stretched between the slide plate and the rear side wall of the shelf. The cooling air leakage prevention structure of the shelf characterized by. A shelf that allows cooling air to be ventilated by a fan from a ventilation opening provided in each slot to a plurality of units of a transmission device that can be inserted and removed, which is accommodated in each slot,
A slide plate that opens and closes the vent is disposed in each slot, and a locking member that locks the unit is provided on the slide plate so that the slide plate can be slid in conjunction with the insertion and removal of the unit. ,
By removing the unit from the slot, the vent is closed with the slide plate, and by inserting the unit into the slot, the vent is opened with the slide plate,
The shelf cooling air leakage prevention structure according to claim 1, wherein the locking member is an elastic clamping member formed with a pair of elastic clamping pieces for clamping the insertion side tip of the slot when the unit is inserted into the slot . A shelf that allows cooling air to be ventilated by a fan from a ventilation opening provided in each slot to a plurality of units of a transmission device that can be inserted and removed, which is accommodated in each slot,
A slide plate that opens and closes the vent is disposed in each slot, and a locking member that locks the unit is provided on the slide plate so that the slide plate can be slid in conjunction with insertion and removal of the unit. ,
By removing the unit from the slot, the vent is closed with the slide plate, and by inserting the unit into the slot, the vent is opened with the slide plate,
The locking member is a link mechanism that is mounted between the slide plate and the back side wall of the shelf via a hinge, bends upward when the unit is inserted, and extends when the unit is removed.
The bottom of the unit is formed with a recess for locking the link mechanism that bends upward, and a protrusion is formed on the rear end of the unit for locking with the slide plate when inserted into the slot. The cooling air leakage prevention structure of the shelf which is the feature.

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