JP2902920B2 - Heat exchange unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchange unit provided with a hot water circuit such as a pump in an exterior body.

[0002]

2. Description of the Related Art A heat exchange unit of this type is disclosed, for example, in Japanese Patent Application Laid-Open No. 3-217737.
In this publication, the exterior of the heat exchange unit is divided into left and right parts by a partition plate, and a pump is attached to the partition plate from the side.

[0003]

In the above-described heat exchange unit, since the pump is fixed to the partition plate from the side, it is not easy to attach and detach the pump. Especially, screwing on the back side is difficult.

[0004] The present invention provides a heat exchange unit that facilitates mounting and dismounting of a pump.

[0005]

According to the present invention, an exterior body constituted by a bottom plate or the like is divided into a plurality of chambers in a horizontal direction by a partition plate.
In a heat exchange unit provided with a hot water circuit such as a circulating pump, a back side of the mounting part of the pump is inserted between a partition plate and a bottom plate, and a front side of the mounting part of the pump is connected to the bottom plate or the partition plate. It was stopped in.

[0006] In the heat exchange unit, a projection is provided on the bottom plate so as to correspond to a lower portion of the pump, and a rear side of a fitting for the pump is inserted between the partition plate and the bottom plate, and the pump is mounted. The front side of the tool is screwed to the bottom plate.

[0007]

In this heat exchange unit, the back side of the fitting of the pump is inserted between the partition plate and the bottom plate, and the back side of the fitting of the pump is fixed to the bottom plate or the partition plate, so that the pump is placed in the outer casing. Mounted.

Further, in the case where a projection portion corresponding to the lower portion of the pump is provided on the bottom plate, when the front side of the mounting portion of the pump is screwed to the bottom plate, the rear side of the mounting portion is divided by the projection portion as a fulcrum. Is connected exactly.

[0009]

An embodiment of the present invention will be described with reference to the drawings.
The heat exchange unit of the present invention is used as an outdoor unit of a separation-type air conditioner, and a hot water pipe is connected to an indoor unit including a hot water heat exchanger in which hot water circulates and a refrigerant heat exchanger in which refrigerant circulates. It is connected with the refrigerant pipe.

1 and 2, reference numeral 40 denotes a heat exchange unit, 1 denotes a burner for heating antifreeze, 2 denotes a gas governor, 3 denotes a hot water heat exchanger through which hot water circulates, and 4 denotes a high limit provided in the burner. Switch, 5 is a combustion gas exhaust port, 6 is a thermal fuse, 7 is a pressure tank,
8 is a hot water pipe connection, 9 is an air supply fan, 10 is an air supply fan motor, 11 is a drain port, 12 is a hot water thermistor, 13 is a gas port, 14 is a drain tank, 15 is an ignition transformer, and 16 is combustion. Confirmation lamp, 17 is hot water (antifreeze)
, A pump for heating, a heating substrate, a terminal, and a transformer provided on the heating substrate.

Reference numeral 21 denotes a fan guard, 22 denotes a propeller fan, 23 denotes a refrigerant compressor, 24 denotes a heat exchanger through which the refrigerant circulates, 25 denotes a connection valve (connection part) to which a refrigerant pipe is connected, and 90 denotes cooling. It is a substrate.

26 is a top plate, 27 is a front panel, 28 is a back panel in which both side plates and a back plate are integrally formed, and 29 is a bottom plate.

The pressure tank 7 is provided so as to protrude from the exterior body of the heat exchange unit, and is used for injecting antifreeze. The water inlet of the pressure tank is provided substantially horizontally, and the water inlet is almost entirely protruded to the side of the heat exchange unit (see FIGS. 8, 9 and 11).

Further, the connecting portion 8 to which the hot water pipe is connected,
Similarly, it is provided so as to protrude laterally from the exterior body of the heat exchange unit (see FIGS. 1 and 3). The connection part 25 to which the refrigerant pipe is connected is also provided so as to protrude laterally from the exterior body of the heat exchange unit (see FIGS. 1 and 3).

Reference numeral 30 denotes a cover for covering the connection portions 8, 25 and the pressure tank 7, and is formed of a synthetic resin. This cover is formed in a size to cover substantially the entire right side of the heat exchange unit. The cover 30 includes an upper cover portion 30A that covers the upper connection portion 8, a lower cover portion 30B that covers the lower connection portion 25, and a handle formed in a concave shape between the two cover portions. A portion 30C and flanges 30D provided on both sides and an upper portion are provided. For this reason, the cover 30 has a shape along the portion protruding from the connecting portions 8 and 25, and is formed along the protruding portion, so that the handle portion 30C is formed very naturally. It has become. Further, the handle portion 30C is located near a heavy compressor or burner arranged on the right side of the heat exchange unit, and the position to be handled when carrying is close to the center of gravity of the heat exchange unit. It is easy to carry around.

It is also conceivable that the hot water pipe should be led out in a direction different from that of the refrigerant pipe. This is, for example, the case where a hot water mat is used, and the direction of the hot water pipe to the hot water mat laid under the room is lower than the direction of the refrigerant pipe (the direction of the upper part of the room), and the direction is different (FIG. 18). In order to be able to cope with the leading out of the hot water pipe to the downwardly facing hot water mat, an opening 30E through which a set of hot water pipes can be led is provided at the lower part of the cover.

In this cover, a terminal plate is disposed immediately inside the cover, and if water such as rain enters the cover, the heat exchange unit may be damaged. Must. By providing the cover with a flange 30D, rain flows on both sides along the twill line between the flange and the cover portion, so that the structure has been made to minimize penetration of rain.

Further, a receiving portion 30F of a side plate formed almost completely on the left and right is provided inside the upper portion of the cover (see FIGS. 5 and 6).
In the case of infiltration into F (this portion is provided with a packing (not shown) and hardly penetrates rainwater or the like), the rainwater is guided along the receiving portion provided in the left-right direction. Rainwater is guided to a portion far from the electrical components, and the structure prevents the electrical components from being damaged.
30G, 30H, and 30I are hook pieces for attaching the cover 30.

FIG. 15 shows a circuit diagram of an air conditioner in which the heat exchange unit 40 and another heat exchange unit (indoor unit) 41 are connected, and a hot water circuit in which hot water circulates and a refrigerant circulate. A refrigerant circuit is formed.

The hot water circuit includes a hot water heat exchanger 3 heated by the burner 1, a hot water heat exchanger 42 disposed in the indoor unit, a pressure tank 7, and a drain tank 4.
3 and a circulation pump 17 are provided. Further, a gas supply path 44 for supplying a fuel gas to the burner, a gas proportional valve 45 and a gas solenoid valve 46 provided in the supply path are provided. A hot water mat 47, which can be connected as required, can also be connected to the connection port 8. Reference numeral 91 denotes a hot water pipe.

In the refrigerant circuit, a compressor 23 and a heat exchanger 2
4, a pressure reducing device 50, a refrigerant heat exchanger 51, and an accumulator 52 are provided. Reference numeral 53 denotes a pipe between the units.

12 to 17, reference numeral 60 denotes a pump 1
7 is a mounting tool for mounting the pump under the partition plate 61. 62 is a cover of the pump 17. 60
A is a rising piece formed on the front side, and 60B is a cover 6.
An insertion piece 60C inserted between the second plate 2 and the bottom plate 29 is an insertion piece (see FIGS. 14 to 17) formed on the back side to be inserted between the partition plate 61 and the bottom plate 28, and 60D, 60.
E and 60F are screw holes (see FIGS. 12, 13, and 17),
60G is a depression.

Referring to FIGS. 14 to 16, reference numeral 29A denotes a projection provided on the bottom plate toward the upper side.
It hits the lower part of 0.

In the heat exchange unit configured as described above, the pump is mounted as described below.

With the pump 17 attached to the fixture 60, the insertion piece 60B is inserted between the cover 62 and the bottom plate 29, and the insertion piece 60C is inserted into the partition plate 61 and the bottom plate 29.
Insert between Then, screw holes 60D, 60E, 6
Screw to 0F. Since the screwing is all on the front side and in the downward and rearward directions, it is easy to perform the screwing. When the screw is screwed into the screw hole, the protrusion 29A of the bottom plate 29 hits the mounting 60 of the pump 17, so that the insertion piece 60C is connected to the partition plate 61 with the protrusion 29A as a fulcrum. Therefore, the pump 17 is firmly supported by the bottom plate 29. Thereby, the vibration of the pump can be suppressed.

In this embodiment, the pump is not mounted on the side or on the rear side as a mounting method of the pump. The pump can be attached and detached very easily.

Also, according to this method of mounting the pump, the pump can be removed to the right without removing the cover, so that the cover must be removed as in the conventional pump (the cover must be removed). In general, the cover itself cannot be removed unless the parts that form the ventilation path, such as the bell mouth, are also removed.) Become.

[0028]

According to the present invention, when the rear side of the mounting bracket of the pump is inserted between the partition plate and the bottom plate, and the front side of the mounting bracket of the pump is fixed to the bottom plate or the partition plate, the pump is placed inside the outer casing. Since the pump is attached and the pump can be attached from the front side, the pump can be easily attached and detached.

Further, in the case where the projection which contacts the lower portion of the pump is provided on the bottom plate, when the front side of the mounting part of the pump is screwed to the bottom plate, the rear side of the mounting part is partitioned with the projection as a fulcrum. The pump is firmly attached because it is connected to the board exactly.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a front side of a heat exchange unit of the present invention.

FIG. 2 is a partially cutaway perspective view showing the rear side of the heat exchange unit.

FIG. 3 is a perspective view showing a relationship between the heat exchange unit and a cover.

FIG. 4 is a cross-sectional view for explaining a relationship between a cover and a heat exchange unit.

FIG. 5 is a side view showing an upper part of the cover.

FIG. 6 is a rear view showing an upper portion of the cover.

FIG. 7 is a sectional view showing an upper portion of the cover.

FIG. 8 is a front view of the heat exchange unit.

FIG. 9 is a plan view of the heat exchange unit.

FIG. 10 is a side view of the heat exchange unit.

FIG. 11 is a side view of the heat exchange unit showing a state where a cover is removed.

FIG. 12 is a perspective view showing how to attach a pump to the heat exchange unit.

FIG. 13 is a perspective view showing a relationship between a pump and a partition plate of the heat exchange unit.

FIG. 14 is an explanatory diagram showing a relationship between a pump and a partition plate of the heat exchange unit.

FIG. 15 is an explanatory diagram showing a relationship between a mounting member of the pump and a bottom plate.

FIG. 16 is an explanatory view showing a relationship between a mounting member of the pump and a bottom plate.

FIG. 17 is a plan view showing a fitting for the pump.

FIG. 18 is a perspective view showing a state in which one set of hot water pipes is pulled out from under a cover.

FIG. 19 is a hot water and refrigerant circuit diagram showing the relationship between the heat exchange unit and the indoor unit.

[Explanation of symbols]

 17 Pump 29 Bottom plate 29A Projection 40 Heat exchange unit 61 Partition plate 60 Fixture

Claims (2)

(57) [Claims] In a heat exchange unit provided with a hot water circuit such as a circulating pump, a rear side of a mounting member of the pump is partitioned by a partition plate. A heat exchange unit inserted between the bottom plate and the bottom plate, and the front side of the mounting fixture of the pump is fixed to the bottom plate or the partition plate. 2. In a heat exchange unit provided with a hot water circuit such as a circulating pump, an exterior body constituted by a bottom plate or the like is divided into a plurality of chambers in a horizontal direction by a partition plate. A heat exchange unit, wherein a back side of the mounting part of the pump is inserted between the partition plate and the bottom plate, and a front side of the mounting part of the pump is screwed to the bottom plate.