JPH0116990Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an air conditioner that circulates a heat medium such as water through a cooling circuit and performs cooling with a fan coil unit installed indoors.

Generally, in an air conditioner in which multiple independent refrigeration cycles are installed in a single device, the size of the fan casing of each blower device is kept to the minimum necessary size in order to downsize the entire device. Furthermore, there is a tendency to arrange the fan casings as closely as possible. In order to make this a reality, it is necessary to fix the blower motor and fan casing separately, and the structure of the entire device is complicated in order to closely arrange the fan casing without impairing assembly workability, resulting in high manufacturing costs. When I got there, I had a problem.

This invention was made in view of the above-mentioned circumstances, and is intended to provide an air conditioner with a simple structure and excellent workability, particularly with the purpose of improving the assemblability of the blower.

An embodiment of this invention will be described below with reference to the drawings. FIG. 1 is an external perspective view of the air conditioner;
FIG. 2 is an exploded perspective view of the air conditioner. The air conditioner consists of a machine room section A located at the bottom and a heat exchanger room section B located above.

First, the machine room section A will be explained. 1 in the diagram
2 is a compressor, and 2 is a heat exchanger on the user side, which cools or heats the heat medium necessary for air conditioning or heating using a refrigeration cycle. The user side heat exchanger 2 and each compressor 1 are attached by screws or the like to a base plate 5 which is formed into a dish shape by bending the front, rear, right and left ends of a relatively thick steel plate. Reference numeral 6 indicates corner support columns erected at the four corners of the base plate 5; 7 indicates a center lower support support installed at the center of the front and back sides of the base plate 5; It is a side panel fixed to the side surface, set on the base plate 5, and has a heat medium inflow hole 11a and an outflow hole 11b, and the upper front and rear ends have support portions 11c formed by bending. . Reference numeral 12 denotes a control box installed on the base plate 5, in which electrical parts for controlling the operation of each compressor 1 and each blower motor described later are housed. Reference numeral 13 denotes a panel attached to the front side and rear side supports 6 that constitute the machine room portion A. As shown in FIG. 3, an L-shaped support plate 7a is fixed to the inner surface of the center lower column 7 at a predetermined height by welding or the like.

Next, the heat exchanger chamber portion B will be explained. Reference numeral 3 denotes a non-use side heat exchanger made up of a large number of aluminum fins and copper tubes, which is formed into an L-shape as shown in the figure and has tube sheets 3a and 3b at the ends.
b is screwed to the heat exchanger support plate 14 and formed into a substantially U-shape, and the tube plate 3a side is screwed to the center upper support 8, which will be described later. The U-shaped openings of the non-use side heat exchangers 3 are arranged to face each other. 4 is a blower device, and a blower motor 4
a, a blade 4b, a fan casing 4c having downwardly bent portions 40c on four sides, a motor mounting foot 4d, and a fan guard 4e.
One end of d is fixed to the blower motor 4a and the other end is fixed to the fan casing 4c by bolts, respectively, so that the blower device 4 is independent. Further, on the inner surface of the bent portion 40c of the fan casing 4c located at the center of the unit, relatively thin and flexible rectangular pieces 4f as shown in FIG. 3 are attached to the front and rear sides of the unit. . Reference numeral 8 denotes a center upper column connected to the upper end of the center lower column 7, and has a heat exchanger mounting surface 8a, a column connecting surface 8b, and a rectangular notch 8c at the upper end. A drain pan 9 is placed on the support parts 7a and 11c and partitions the machine room part A and the heat exchanger part B, and includes a frame 9a, a drain pan part 9b formed in a V-shape with the deepest part in the center, and It consists of a drain hole 9c provided on the back side for draining drain water from the deepest part of the drain pan section 9b. Reference numeral 10 denotes a partition plate set in the center of the heat exchanger chamber portion B, which prevents air from flowing between the left and right sides. In other words, air passages for each non-use side heat exchanger 3 are formed independently from each other. 1
A reinforcing plate 5 is attached to the top of the unit, and its purpose is to prevent deformation of the entire unit and improve its strength. On the other hand, on the refrigeration cycle side, each compressor 1, each non-use side heat exchanger 3, and each use side heat exchanger 2 are connected by refrigerant piping (not shown),
Two mutually independent refrigeration cycles are formed.

Next, a general procedure for assembling the heat exchanger chamber portion B of the air conditioner having such a configuration will be explained. First, in the machine room section A, the drain pan 9 is set on the upper surface of the support part 11c of the side panel 1 and the support part 7a of the center lower column 7, and fixed to the support parts 11c and 7a with screws or the like. The left and right drain pans 9 are positioned so that there is a predetermined gap (for example, about 10 to 15 mm) in the center as shown in Fig. 3, so the drain pans 9 and the support part 7a of the center lower support column 7 are used to connect the front and rear of the unit. A concave gap 12 is formed in the direction. Next, the unused side heat exchanger 3 is set in the installation part 9d on the drain pan 9, and the tube plates 3b on both sides of the unit are screwed to the heat exchanger supports 14 to temporarily fix it to the unit. Then, the center upper column 8 on the rear side is connected to the center lower column 7 with bolts, and at the same time, the non-use side heat exchanger 3
The surface of the tube plate 3a is fixed to the heat exchanger mounting surface 8a.
Next, a partition plate 10 for blocking left and right air circulation.
is dropped into the gap 12 formed by the drain pan 9 and the support part 7a, and is made to stand on its own so that it can slide in the front and back direction, and on the back side, the column connecting surface 8
The partition plate 10 is fixed to b with screws. Next, the blower device 4 is attached so as to cover the corner support 6 and the center upper support 8. in this case,
At the top of the center upper support 8 is a square-shaped notch 8.
c is provided, so when installing the left and right blowers 4, first insert the unit on both sides of the bent portion 40c of the fan casing 4c, then insert the bent portion 4 in the center side.
By inserting 0c into the notch 8c, the work can be done relatively smoothly. Next, the reinforcing plate 15 is set on the top of the unit, and the corner supports 6, the air blower 4, and the center upper support 8 on the rear side are fixed with bolts or the like. Then, wire the blower motor 4a of the blower device 4 to the fan casing 4.
The small piece 4f attached to the inner surface of c is bent downward along the partition plate to temporarily fix the upper part of the partition plate 10,
Finally, turn the center upper support 8 on the front side from below upwards to the bent part 40c of the fan casing 4c.
The upper end is fixed to the center lower support column 7 and the upper end is fixed to the air blower 4. Furthermore, the front side of the partition plate 10 is connected to the connecting surface 8b and the unused side heat is connected to the heat exchanger mounting surface 8a. The tube plate 3a of the exchanger 3 is fixed with screws to complete the assembly.

As described above, according to this invention, since the notch is provided at the top end of the pillar in the center of the air conditioner, it is relatively easy to insert the fan casing into the center side even when the fan casing is first inserted into the side pillar. can be inserted. In addition, even if you try to install the other blower after one of the blowers is installed, you can easily install it by slightly tilting the blower as described above.
It is also easy to bring the left and right blowers into close contact with each other, resulting in extremely good assembly performance.

[Brief explanation of drawings]

FIG. 1 is an external perspective view of an air conditioner showing an embodiment of this invention, FIG. 2 is an exploded perspective view, and FIG. 3 is an assembled structure diagram showing the main parts of this invention. In addition,
The same reference numerals in the figures indicate the same or corresponding parts. In the figure, 1 is a compressor, 2 is a use side heat exchanger, 3 is a non-use side heat exchanger, 4 is a blower, 5 is a base plate,
6, 7, and 8 are respectively the corner support, the center lower support, and the center upper support; 8c is the notch; 9
is the drain pan, 10 is the partition plate, A is the machine room part,
B indicates the heat exchanger chamber portion.

Claims (1)

[Scope of utility model registration request] In an air conditioner having mutually independent refrigeration cycles and configured to perform capacity control operation by stopping one of the refrigeration cycles, the base plate on which the compressor and user-side heat exchanger of each refrigeration cycle are installed; Supports erected at the four corners of the base plate and at the center of the front and rear sides, a drain pan placed on the supports provided on these supports,
A non-use side heat exchanger of each of the above-mentioned refrigeration cycles placed on each of these drain pans, a blower device consisting of a fan casing and a blower that covers the upper surface of each of these non-use side heat exchangers, and the above-mentioned non-use side heat exchanger. A partition plate is provided to partition between the heat exchangers, and a notch is provided at the upper end edge of the pillar that is erected at the center of the front and rear sides of the base plate, and the bent part of the periphery of the fan casing is inserted into the notch. and an air conditioner configured to support the fan casing.