JP2010286228A - Heat exchanger device and heating element storing device using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To attain a smaller device size in a heat exchanger device and a heating element storing device using the same. <P>SOLUTION: The heat exchanger device includes a box body 12b provided on the front side of a body case 12. The box body 12b includes a resin-made scroll casing for covering a blowing fan 13 and a cubic metallic case for covering a heat exchanger 14, which are provided in an integrated manner, and a wedge-shaped dent having the back surface side as an apex, or a wedge-shaped projection swollen toward the inner surface is formed on the side surface of the box body 12b. The upper side of the wedge-shaped projection forms a support frame 18a for supporting the heat exchanger 14 on the lower side, and supports the inclined lower surface of the heat exchanger 14 from below. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

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. 11).

  That is, it has a configuration including a cabinet in which a transmitter / receiver serving as a heating element is stored, and a heat exchange device (101) mounted in an opening of the cabinet. As shown in FIG. 11, the structure of the heat exchange device 101 includes 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. The main body case 111, the first blower 112 for outside air and the second blower 113 for inside the cabinet provided in the main body case 111, and heat exchange between outdoor air and cabinet air are performed in the main body case 111. The configuration includes a heat exchanger 114 (refer to Japanese Patent Laid-Open No. 2000-161875 as a prior document similar to this).

JP 2000-161875 A

  In the above-described conventional heat exchange device, a structure in which two blowers, that is, a first blower 112 for outside air, a second blower 113 for use in a cabinet, and a heat exchanger 114 are housed in one main body case 111. Therefore, the main body case 111 itself is large. On the other hand, mobile phone base stations have been reduced in size, and the heat exchange device itself is also required to be reduced in size.

  Accordingly, the object of the present invention is to reduce the size of the heat exchange device.

  In order to achieve this object, the present invention provides the first intake port and the first discharge port for the first environment on the front surface, and the second intake port and the second discharge port for the second environment on the back surface. A main body case, a first environmental blower fan provided in the main body case, and a heat exchanger for exchanging heat between the air in the first environment and the air in the second environment in the main body case. The heat exchanger has a configuration in which a plurality of plate bodies are polymerized in a state where they are separated from each other by a predetermined distance, and is provided with air inlets for the first environment and the second environment on two opposing surfaces formed in the stacking direction, One of the other surfaces formed in the stacking direction is provided with a first environmental air outlet, and a second environmental air outlet is provided on a surface opposite to the surface provided with the first environmental air outlet. The surface provided with the first air inlet for the environment is directed to the blower fan, and further, the first The second air outlet is provided in contact with the first outlet provided in the main body case and the second outlet provided in the main body case, and the second air outlet is provided in the main body case. A chamber is formed between the air inlet and the second environmental air inlet, and the main body case is composed of a box having an opening on the back side and a back plate provided on the back side of the box. In this way, the intended purpose is achieved.

  As described above, the present invention provides a main body case in which the first intake port and the first discharge port for the first environment are provided on the front surface, and the second intake port and the second discharge port for the second environment are provided on the back surface, A heat exchanger for exchanging heat between air in the first environment and air in the second environment in the main body case; and a heat exchanger for exchanging heat between the air in the first environment and the air in the second environment. Has a structure in which a plurality of plates are polymerized in a state of being separated by a predetermined distance, and is provided in the stacking direction by providing air inlets for the first environment and the second environment on two opposing surfaces formed in the stacking direction. A first environmental air outlet is provided on one of the other surfaces, and a second environmental air outlet is provided on a surface opposite to the surface provided with the first environmental air outlet, The surface provided with the first environmental air inlet is directed to the blower fan, and further, the first environmental air outlet is The second air outlet for the environment is installed in contact with the second outlet provided in the main body case at the first outlet provided in the body case, and the second air inlet and the second air outlet. A chamber is formed between the air inlet for the environment, and the main body case is composed of a box having an opening on the back side and a back plate provided on the back side of the box. The exchange device is miniaturized.

The perspective view which shows the example of installation of one Embodiment of this invention Cross section of the heat exchanger Sectional view of the heat exchange device and heating element storage device The perspective view of the heat exchange apparatus of the 2nd Embodiment of this invention Exploded sectional view of the heat exchanger Enlarged cross-sectional view of the heat exchanger part of the heat exchanger The perspective view of the circulation fan part of the heat exchange apparatus of the 3rd Embodiment of this invention Cut perspective view of the circulation fan part of the heat exchanger Exploded sectional view of the circulation fan part of the heat exchanger The exploded perspective view of the circulation fan part of the heat exchanger Configuration diagram of conventional heat exchanger

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

(Embodiment 1)
In FIG. 1, reference numeral 1 denotes a building, and a mobile phone base station 3 is provided on the rooftop 2 thereof. The base station 3 is provided with a box-shaped cabinet 4, a transmitter / receiver 5 provided in the cabinet 4, and a door 7 that can be opened and closed at the front opening of the cabinet 4. It is attached.

  As shown in FIGS. 2 and 3, the heat exchanging device 6 has a first intake port 8 and a first discharge port 9 for outside air (first environment) and the inside of the cabinet 4 (second environment, hereinafter referred to as inside air). ) Second air inlet 10 and second outlet 11, an external air blowing fan 13 provided in the main body case 12, and heat of the outside air and the inside air in the main body case 12. And a heat exchanger 14 for performing exchange.

  The heat exchanger 14 has a configuration in which a plurality of plates made of synthetic resin and having a parallelogram shape are polymerized in a state of being spaced apart from each other by a predetermined distance. A plurality of rectifying walls are provided on the surface of the plate body to partition the surface into lanes. The plate body has a parallelogram shape with a long vertical direction, and the rectifying wall extends from one end of the plate body serving as an inflow port toward the other end side. The rectifying wall has a shape that curves toward one long side (side adjacent to the inlet side at an obtuse angle) before the other end side, and is connected to the outlet. By such a plate (rectifying wall), a plurality of substantially L-shaped air lanes are formed on the plate. According to such a heat exchanger 14, with respect to the inside air (second environmental air passage), the short air lane is provided on the cabinet 4 side, and the long air lane is provided on the outside air side. On the other hand, for the outside air (first environment air passage), a long air lane is provided on the cabinet 4 side, and a short air lane is provided on the outside air side.

  In such a heat exchanger 14, the bottom surface is the outside air side first inlet 14 a (first air inlet for the environment), and the outside air outlet is connected to the first outlet 9. Further, in the heat exchanger 14, the top surface is the second air inlet 14 b (second air inlet for environment) on the inside air side, and the air outlet is connected to the second outlet 11.

  The blower fan 13 for outside air is provided at a position where air is sent toward the first inflow port 14a. In the second air inlet 14b (second environmental air inlet) for the inside of the cabinet 4, the second inlet 14b itself becomes a slope and the air inlet (second inlet 10) in the cabinet 4 is used. A chamber 16 is formed between the two.

  Next, the operation of the heat exchange device 6 will be described. Air (inside air) heated to high temperature by the transmitter / receiver 5 in the cabinet 4 is sent into the chamber 16 from the second air inlet 10 of the heat exchange device 6 by the circulation fan 17 provided in the cabinet 4. On the other hand, the cold outside air is sucked from the first intake port 8 by the operation of the blower fan 13 and sent to the first inlet 14 a of the heat exchanger 14. In the heat exchanger 14, heat exchange is performed between cold outside air and high temperature inside air, and the cooled inside air is blown into the cabinet 4 from the second discharge port 11, and the outside air is discharged from the first discharge port 9. It will be released again to the outside air.

  According to such a configuration, by using the heat exchanger 14 having a parallelogram in cross section, the blown air from the circulation fan 17 in the cabinet 4 passes through the chamber 16 to the second intake port 10 side. It will flow into the 2nd inlet 14b of the heat exchanger 14 which faced. Therefore, the air heated in the cabinet 4 efficiently flows into the heat exchanger 14. Moreover, since the heat exchanger 14 uses a parallelogram-shaped plate, the angle of bending is small in the internal air blowing lane, and the pressure loss is suppressed to be small. Furthermore, since the inside air side is blown using the circulation fan 17 provided in the cabinet 4, the size of the main body case 12 can be kept small.

(Embodiment 2)
Next, a second embodiment of the present invention will be described with reference to FIGS. About the same structure as 1st Embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  As shown in FIGS. 4 and 5, in the second embodiment, the main body case 12 has a back plate 12a on the back side of the frame body whose front and rear surfaces are open, and an opening on the back plate 12a side. 12 and a box 12b provided on the front side of the frame 12 (which can also be expressed as the front side of the frame). The box 12b is composed of a scroll casing formed of a resin that covers the blower fan 13 and a metal cuboid case that covers the heat exchanger 14. On the side surface of the box body 12b, a wedge-shaped depression having the back side as a vertex is provided. This dent swells as it is on the inner surface side of the box 12b and forms a wedge-shaped protrusion. The upper side of the wedge-shaped protrusion is a support frame 18a that supports the heat exchanger 14 on the lower side. That is, the support frame 18a is a side provided obliquely along the inclined lower surface of the heat exchanger 14 so as to be lowered toward the back plate 12a (back side). Moreover, the support frame 18b is provided so that the edge part of the front side of the support frame 18a may be connected. This support base 18b is a rail-shaped thing protruded to the inner surface side of the box 12b, and supports the front side of the heat exchanger 14 from the lower side.

  As in the first embodiment, the heat exchanger 14 is formed by laminating substantially parallelogram plates.

  In addition, a cover 15 serving as a decorative plate is provided on the front side of the heat exchange device 6. The cover 15 is provided with a louver for taking in air at a portion facing the first intake port 8 and a louver for blowing out air at a portion facing the first discharge port 9. In the box body 12b, which is an outer shell of the heat exchanger 14, a partition 19 is horizontally provided around the box body 12b between the first discharge port 9 and the lower surface (first inlet 14a). Is provided. The partition 19 is in contact with the inner surface of the cover 15 to divide the upper part (first discharge port 9 side) and the lower part (first intake port 8 side).

  As shown in FIG. 5, the back plate 12 a is provided with a heat exchanger pressing protrusion 21 in the horizontal direction so as to press the heat exchanger 14 against the front surface side. The motor mounting portion of the blower fan 13 is provided with a motor recess 22 that protrudes outward.

  As shown in FIG. 6, a top surface ridge 23 is provided at the boundary between the top surface and the front surface of the box body 12 b, that is, the front surface side of the top surface so as to be pushed into the inside of the box body 12 b. Is provided. In the top surface ridge 23, the top portion of the heat exchanger 14 is brought into contact with the corner portion on the front surface side, and the chamber 16 is formed between the top surface of the box 12 b and the second inflow port of the heat exchanger 14. It will be.

  According to such a configuration, since the outer periphery of the blower fan 13 is a scroll casing, it is possible to efficiently flow the wind toward the first inflow port 14a.

  Further, since the partition 19 is provided so as to partition the first intake port 8 and the first discharge port 9, a shortcut between the intake air and the blown air is prevented.

  Moreover, since the top surface bulge 23 forms the chamber 16 that secures a distance between the top surface of the box 12b and the second inlet 14b, the air sucked from the second air inlet 10 is efficient. It often flows to the second inlet 14b.

  The drive board for driving the blower fan 13 is attached to the outside of the main body case 12 so that the heat generated from the drive board is not easily transmitted to the air flowing through the heat exchanger 14, and the influence on the heat exchange efficiency is reduced. can do.

(Embodiment 3)
Next, the circulation fan 17 will be described with reference to FIGS.

  As shown in FIGS. 7 and 8, the circulation fan 17 is housed in a box-shaped case 31 having a first environment suction port 24 provided on the bottom surface to constitute a circulation fan unit 30. A fan unit discharge port 37 is provided on a side surface of the case 31 and is connected to the second air intake port 10 of the heat exchange device 6. The case 31 is composed of a box 38 composed of a top surface and side surfaces, and a bottom plate 39 constituting the top surface. One of the side surfaces of the box 38 is a fan unit discharge port 37. Further, as shown in FIG. 8, the motor of the circulation fan 17 is attached to the top surface of the box 38, and a motor attachment portion 32 protruding outward is provided at the attachment position of the housing. Yes. Further, a step portion 33 is provided around the motor mounting position (motor mounting portion 32) so as to protrude outward so as to fix the motor mounting tool.

  FIG. 9 is a vertical cross-sectional view when the circulation fan unit 30 is disassembled. The circulation fan 17 is fixed to the box 38 after being attached to the motor fixing bracket 26. A step portion 33 is formed in accordance with the motor fixing bracket 26. A drive board 28 on which a circuit for driving the motor is mounted is attached to the motor fixing bracket 26. The bottom plate 39 is provided with a bottom plate partition plate 34 that divides an area where the drive board 28 is provided and an area where the circulation fan 17 is provided and the blown air flows. Around the bottom plate 39 (as also shown in FIG. 10), a joint portion 35 bent at an acute angle is provided on the box body 38 side. On the side of the box body 38, a joint flange 36 that is in surface contact with the joint portion 35 is provided so as to be bent inward.

  According to such a configuration, the attachment strength of the circulation fan 17 can be secured at the upper part of the circulation fan unit 30 by the box 38 provided with the side surface. Further, the maintenance can be performed by removing the bottom plate 39 with the bottom plate 39 side facing up. Further, the box 38 is provided with a stepped portion 33 for mounting the motor fixing bracket 26 and a motor mounting portion 32 serving as a protrusion to ensure the strength of the top surface. Furthermore, the bottom plate partition plate 34 separates the drive board 28 serving as a heat generating portion and the section of the circulation fan 17 serving as a ventilation path, so that heat is not easily transmitted to the circulation air path.

  As described above, the present invention provides a main body case in which the first intake port and the first discharge port for the first environment are provided on the front surface, and the second intake port and the second discharge port for the second environment are provided on the back surface, A heat exchanger for exchanging heat between air in the first environment and air in the second environment in the main body case; and a heat exchanger for exchanging heat between the air in the first environment and the air in the second environment. Has a structure in which a plurality of plates are polymerized in a state of being separated by a predetermined distance, and is provided in the stacking direction by providing air inlets for the first environment and the second environment on two opposing surfaces formed in the stacking direction. A first environmental air outlet is provided on one of the other surfaces, and a second environmental air outlet is provided on a surface opposite to the surface provided with the first environmental air outlet, The surface provided with the first environmental air inlet is directed to the blower fan, and further, the first environmental air outlet is The second air outlet for the environment is installed in contact with the second outlet provided in the main body case at the first outlet provided in the body case, and the second air inlet and the second air outlet. A chamber is formed between the air inlet for the environment, and the main body case is composed of a box having an opening on the back side and a back plate provided on the back side of the box. The exchange device is miniaturized. Therefore, for example, it is extremely useful as a cooling facility for a communication equipment base station having a limited installation area and other outdoor installation equipment.

DESCRIPTION OF SYMBOLS 1 Building 2 Rooftop 3 Base station 4 Cabinet 5 Transmitter / receiver 6 Heat exchange device 8 1st inlet 9 First outlet 10 Second inlet 11 Second outlet 12 Body case 12a Back plate 12b Box 13 Fan DESCRIPTION OF SYMBOLS 14 Heat exchanger 14a 1st inflow port 14b 2nd inflow port 16 Chamber 17 Circulation fan 18a Support mount 18b Support mount 19 Partition 21 Heat exchanger press protrusion 22 Motor depression 23 Top surface protrusion 30 Circulation fan unit 31 Case 38 Box 39 Bottom plate

Claims (11)

A main body case provided with a first intake port and a first discharge port for the first environment on the front surface, and a second intake port and a second discharge port for the second environment on the back surface, and provided in the main body case A blower for the first environment; and a heat exchanger for exchanging heat between the air in the first environment and the air in the second environment in the main body case, the heat exchanger having a plurality of plates It is configured to be polymerized in a state of being separated from each other, and air inlets for the first environment and the second environment are provided on two opposing surfaces formed in the stacking direction, and one of the other surfaces formed in the stacking direction is the first. A first environmental air outlet is provided, and a second environmental air outlet is provided on a surface opposite to the surface provided with the first environmental air outlet. The surface provided is directed to the blower fan, and the air vent for the first environment is provided in the main body case. The second air outlet for the second environment is installed in one outlet so as to be in contact with the second outlet provided in the main body case, and the second air inlet and the second air inlet for the environment A chamber in which a chamber is formed, and the main body case is constituted by a box having an open back side and a back plate provided on the back side of the box. The heat exchanger according to claim 1, wherein the box body is made of resin in a scroll casing that covers the blower fan portion, and a rectangular box body that covers the heat exchanger is made of metal. The plate forming the heat exchanger has a substantially parallelogram shape, and the surface provided with the first environmental air inlet is the same as the surface provided with the first environmental air outlet. The surface adjacent to the obtuse angle and provided with the second environmental air inlet is adjacent to the surface provided with the second environmental air outlet at the second obtuse angle. 2. The heat exchange device according to 2. The heat exchange apparatus according to claim 3, wherein a rail-like support frame is provided on an inner wall surface of the box body so as to come into contact with the periphery of the first ambient air suction port of the heat exchanger. A wedge-shaped depression having a vertex on the back side is provided on the side surface of the box body to form a wedge-shaped protrusion on the inner wall surface, and the upper side of the wedge-shaped protrusion is connected to the support frame of the heat exchanger. The heat exchange device according to claim 4, which is a part. A ridge is provided inside the box so as to push the boundary between the top and front of the box inward, and the top of the heat exchanger is formed at a corner formed by the ridge and the front of the box. The heat exchanging device according to any one of claims 3 to 5, wherein the abutting member is abutted. The heat exchanging device according to any one of claims 1 to 6, wherein the back plate has a protrusion provided so as to press the heat exchanger against a front surface side. The heat exchange device according to any one of claims 1 to 7, wherein the back plate is provided with a recess for mounting a motor for driving the blower fan. The heat exchange device according to any one of claims 1 to 8, a cabinet that forms a second environment in which a heating element is provided, and a second environment of the heat exchange device that is provided on a top surface of the cabinet. A fan case that conveys the air in the cabinet to the air suction port, and the fan case that houses the circulation fan sucks in the air in the cabinet and a box that integrates a frame and a top surface. A heating element storage device comprising a bottom surface provided with an air inlet. The periphery of the bottom surface of the fan case is bent at an acute angle toward the box body, and the periphery of the bottom surface side is bent inward so as to join the bent portion of the bottom surface to the box body side of the fan case. The heating element storage device according to claim 9 formed. The heating element according to claim 9 or 10, wherein an air outlet to the heat exchange device is provided on one of the side surfaces of the box of the fan case, and a connection flange with the heat exchange device is provided around the air outlet. Storage device.

Images