JP5109925B2 - Heat exchange device and heating element storage device using the same - Google Patents

Description

  The present invention relates to a heat exchange device and a heating element storage device using the heat exchange device.

  For example, since a current of several tens of amperes or more flows in a mobile phone base station, it is also expressed as a heating element in a certain point. In other words, cooling is extremely important in order to stabilize the operation. Such a mobile phone base station has the following configuration in order to cool it (see FIG. 7).

  That is, as shown in FIG. 7, it has a configuration including a cabinet housing a transmitter / receiver serving as a heating element, and a heat exchanging device 101 mounted in an opening of the cabinet. The structure of the heat exchange device 101 includes a main body case 111 having a first suction port 107 and a first discharge port 108 for outside air, and a second suction port 109 and a second discharge port 110 for use in the cabinet, and this main body. A first blower 112 for outside air and a second blower 113 for cabinet inside provided in the case 111, and a heat exchanger 114 for exchanging heat between outdoor air and cabinet air in the main body case 111 are provided. (For example, the following patent document 1).

Although not shown, a louver is provided on the front side of the main body case 111 where the first suction port 107 is provided so that rainwater or the like does not enter. The main body case 111 is attached to the door of the cabinet so as to be freely opened and closed. A cover using a punching hole is attached to the door from the outside so as to cover the front surface of the heat exchange device 101 (the surface provided with the first suction port 107).
JP 2000-161875 A

  In the conventional heat exchange apparatus, the main body case 111 is attached to the door of the cabinet, and therefore the main body case 111 can be attached with the door open. Further, the mounting location is not limited to the door but may be mounted on a wall surface or the like, but may be mounted in a form protruding from the wall surface by providing an opening. However, in recent years, such a heat exchange device is required to have various mounting locations. That is, it is required that an opening is provided in the wall surface of an existing structure and the opening is embedded in the opening. In such a case, it is a problem that installation work can be performed from the outside of the wall surface and that maintenance can be easily performed from the outside.

  Therefore, an object of the present invention is to enable easy maintenance from the front side of the heat exchange device.

  In order to achieve this object, the present invention includes a main body case, a blower provided inside the main body case, and a heat exchanger, and on the outer side of the main body case, the main body case A heat exchange device provided with a cover having a plurality of openings covering the front surface of the main body case. A flange having a wall surface joining surface that is screwed to the wall surface and the cover, and the cover has a small decorative plate louver with a heat exchange device having a flange joint slope so that the outer peripheral portion is in contact with the outer peripheral side of the bent portion, This achieves the intended purpose.

  As described above, the present invention includes a main body case, a blower provided inside the main body case, and a heat exchanger, and a plurality of openings covering the main body case are provided on the outer side of the main body case. A heat exchanging device provided with a cover having a bent portion protruding to the front outer periphery of the main body case, projecting forward in a U shape at the base of the main body case, and screwed to the wall surface on the outer peripheral side. Since the decorative plate louver with the flange joint slope is small so that the outer peripheral part is in contact with the outer peripheral side of the bent part, the flange having the wall surface joining surface to be joined and the cover can be easily maintained from the front side of the apparatus Can do.

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

(Embodiment 1)
In FIG. 1, reference numeral 1 denotes a mobile phone base station in which a transmitter / receiver (not shown) is housed. Such a base station 1 is installed in various places. The base station 1 includes a box-shaped cabinet 2 and a transmitter / receiver provided in the cabinet 2. A heat exchange device 3 is provided on one side of the cabinet 2 so as to be embedded from the outside.

  The schematic configuration of the heat exchange device 3 will be described with reference to FIG. The heat exchanging device 3 includes a case 4 having an outside air inlet 5, an outside air outlet 6, and an inside air inlet 7 and an inside air outlet 8 for the inside of the cabinet 2. The heat exchange device 3 includes an outside air blower 9 for outside air, an inside air blower 10 for inside the cabinet 2, and a heat exchanger 11 that performs heat exchange between outside air and air inside the cabinet 2.

  With such a configuration, the heat exchange device 3 cools the transmitter / receiver by the heat exchanger 11. That is, a current of several tens of amperes or more flows in the transmitter / receiver, and the temperature rises accordingly. If such a high temperature of the transmitter / receiver is left unattended, its characteristics become unstable. When the heat exchange device 3 is operated, the high-temperature air in the cabinet 2 is supplied again into the cabinet 2 through the heat exchanger 11 by the inside air blower 10. On the other hand, the outside air having a temperature lower than that of the inside air is discharged to the outside air through the heat exchanger 11 by the outside air blower 9. In the heat exchanger 11, heat exchange is performed between the high-temperature inside air and the low-temperature outside air, and the inside air is cooled and supplied to the cabinet 2, and the inside of the cabinet 2 is cooled. Thus, the heat exchanger 11 cools the inside of the cabinet 2 by exchanging heat with the outside air, thereby preventing the transmitter / receiver from becoming unstable.

  Next, the largest characteristic part in the present embodiment will be described.

  That is, as shown in FIG. 2, the heat exchange device 3 is attached to be embedded in the wall surface 2 a of the cabinet 2. A cover 12 is provided on the front surface of the heat exchange device 3 to improve the appearance and protect the outside air intake 5. The cover 12 is provided with a punching hole for allowing air to pass therethrough (FIG. 6). More specifically, the case 4 of the heat exchange device 3 is provided with a flange 13 projecting from the periphery of the case 4 on substantially the same plane as the front surface. As shown in FIG. 3, the flange 13 has a shape protruding in a “<” shape at the base portion with the case 4. The protruding portion is a bent portion 13a, and the portion that is coupled to the wall surface 2a is a wall surface coupling surface 13b. The heat exchange device 3 is fitted so as to be embedded from the outside of the wall surface 2a, and is fixed by screwing (screw 14) between the wall surface coupling surface 13b of the flange 13 and the wall surface 2a.

  On the other hand, the cover 12 is provided with a flange joint slope 12a on the outer periphery thereof so as to be in contact with the outer peripheral side of the bent portion 13a provided on the flange 13. A screw hole (screw hole 12g shown in FIG. 6) for attaching the cover 12 is provided on the inclined surface on the outer peripheral side of the bent portion 13a, and the outer peripheral side of the bent portion 13a and the flange joint inclined surface 12a are coupled with the screw 15. become. The cover 12 is provided with an edge portion 12b on the outer peripheral side of the flange joint slope 12a so as to contact the wall surface coupling surface 13b of the flange 13. The edge portion 12b is provided with a hole 12c so as to avoid a screw 14 for screwing the flange 13 and the wall surface 2a, and the cover 12 is coupled only with the bent portion 13a of the flange 13.

  According to the above configuration, when the heat exchange device 3 is installed on the wall surface 2a of the cabinet 2, the cover 12 is attached to the flange 13, and the screw 14 for coupling the flange 13 and the wall surface 2a. Since the hole 12c is provided so as to avoid this, the screwing operation between the flange 13 and the wall surface 2a can be performed with the cover 12 attached.

  Further, the outer peripheral side of the edge 12 b of the cover 12 is folded back toward the front of the heat exchange device 3. (Folded portion 12d) A space formed between the folded portion 12d and the wall surface 2a is a space for applying the caulking material 16 so that water does not enter the inside. This space allows the caulking work to be easily performed, and furthermore, the caulking work can be surely performed.

  4 is a cross-sectional view of the heat exchange device 3 with the cover 12 removed, and FIG. 5 is a view as seen from the back side of the cover 12. As shown in FIGS. 4 and 5, louvers 12 e and 12 f are provided on the back side of the cover 12 so as to form an air flow. The louver 12e provided on the outside air intake port 5 side has a wing plate provided in the horizontal direction, and has a slope that falls outward. The louver 12e prevents moisture from entering due to rain from the outside. On the other hand, the louver 12f on the outside air discharge port 6 side is provided with a slat in the vertical direction so that air can flow easily.

  Further, as shown in FIG. 6, the screw pitch of the screw holes 12g provided in the cover 12 is different between the upper side and the lower side (upper screw pitch A and lower screw pitch B). Since the cover 12 will not perform its function if it is upside down, such a configuration eliminates mounting errors and performs its original function.

  In this embodiment, when the heat exchange device 3 is fixed to the wall surface 2a, the screw 14 is fixed to the wall surface 2a by screwing. However, the screw or bolt of the wall surface 2a is penetrated and fixed using a nut. However, similar actions and effects can be obtained.

  Also, since the screw head of the screw 14 faces the outside, special screws that cannot be easily removed, such as root screws and unidirectional screws (can be tightened with a normal screwdriver, etc., but a special tool is required for removal) It is desirable to use a simple screw.

  As described above, the present invention includes a main body case, a blower provided inside the main body case, and a heat exchanger, and a plurality of openings covering the main body case are provided on the outer side of the main body case. A heat exchanging device provided with a cover having a bent portion protruding to the front outer periphery of the main body case, projecting forward in a U shape at the base of the main body case, and screwed to the wall surface on the outer peripheral side. Since the flange provided with the wall surface joining surface to be joined and the cover have a flange joint slope so that the outer peripheral portion is in contact with the outer peripheral side of the bent portion, maintenance can be easily performed from the front side of the apparatus. Therefore, it is extremely useful as a cooling facility for base stations for communication equipment and other outdoor equipment.

The perspective view which shows the example of base station installation of one Embodiment of this invention Sectional drawing of the heat exchange apparatus of one Embodiment of this invention Detailed view of cover installation of one embodiment of the present invention The cover removal sectional view of the heat exchange device of one embodiment of the present invention Detailed view of inner surface of cover of one embodiment of the present invention Detailed view of cover fixing screw position of one embodiment of the present invention Sectional view of a conventional heat exchange device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base station 2 Cabinet 2a Wall surface 3 Heat exchange apparatus 4 Case 5 Outside air inlet 6 Outside air outlet 7 Inside air inlet 8 Inside air outlet 9 Outside air blower 10 Inside air blower 11 Heat exchanger 12 Cover 12a Flange joint slope 12b Edge 12c hole 12d Folding part 12e Louver 12f Louver 12g Screw hole 13 Flange 13a Bending part 13b Wall surface 14 Screw 15 Screw 16 Caulking material

Claims (8)

It has a main body case, a blower provided inside the main body case, and a heat exchanger, and a plurality of bowl-shaped slats with an inclination to the outside are provided on the outer wall portion of the main body case. A heat exchanging device provided with a louver having a plurality of openings on the outer side of the louver, and provided with a cover having a plurality of openings covering the main body case on the outer side of the main body case. A flange having a wall surface joining surface which is extended to the front outer peripheral portion of the main body case, provided with a bent portion protruding in a U-shape forward at the base of the main body case, and screwed to the wall surface on the outer peripheral side. And the said cover is a heat exchange apparatus which has a flange joint slope so that an outer peripheral part may contact | connect the outer peripheral side of the said bending part. The cover is provided with an edge in contact with a wall surface of the flange on the outer peripheral side of the flange-joint slope, and a hole having a diameter equal to or larger than the outer diameter of the screw head is formed in the screw-fastened part of the flange. The heat exchange apparatus according to 1. The heat exchange apparatus according to claim 2, wherein the cover is configured such that the outer peripheral side of the edge portion is folded back to the front side. The said air blower is a heat exchange apparatus as described in any one of Claims 1-3 provided in the lower part of the said main body case, inhaling air from the lower part of the said cover, and discharging | emitting from upper part. The heat exchanger according to any one of claims 1 to 4, wherein the cover is provided with a punching hole as a ventilation hole, and a louver is integrally provided on the back side. The heat exchanger according to any one of claims 1 to 5, wherein the louver is provided with a slat in the horizontal direction on the suction port side and a slat in the vertical direction on the discharge port side. The heat exchange device according to any one of claims 1 to 6, wherein a plurality of screw holes for screwing the bent portion are provided on the flange joint slope of the cover, and the screw holes have different hole pitches at the upper part and the lower part. . A heating element storage device on which the heat exchange device according to claim 1 is mounted.

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