JPS6239338B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air conditioner, and in particular, to simplify the structure and facilitate assembly.

Conventionally, heat exchange elements of this type of air conditioner have a tube plate attached to and supported by a column of the air conditioner with screws, and an opening formed between the heat exchange elements is closed with a closing plate. The mounting legs of the wind blower were fixed to the pillar.

Such a configuration results in a complicated structure and a large number of parts, resulting in high cost and poor assembly performance.

This invention has been made to eliminate such drawbacks, and one embodiment of this invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes an air conditioner, which consists of a machine room part A, a heat exchange room part B, a casing part C, and a top plate part D.

First, the machine room portion A shown in FIG. 2 will be explained. In the figure, 2 is a stand formed into a dish shape as a whole by bending the front, rear, left, and right ends of a relatively thick steel plate;
are mounting feet made of L-shaped steel installed at the four corners of the upper surface of this table 2, each having screw holes 3a on each surface. 4 is a protrusion for positioning the panel, which will be described later; 5
is formed by bending a relatively thick steel plate into an L shape.
The lower end of each of the pillars 5 has a bolt hole 5a corresponding to the screw hole 3a of the mounting foot 3, and the upper end has a mounting hole formed by bending one side horizontally. It has a surface 5b, and a screw 6 is installed in this installation surface 5b. Therefore, the lower end of each support column 5 is overlapped with each mounting foot 3, and the bolt 7 is inserted into the screw hole 3a.
When inserted into the bolt holes 5a and tightened, the lower end surface of each support column 5 is assembled integrally with the mounting foot 3 in a state in which it is in contact with the base 2, and the outline of the machine room portion A is formed. Reference numeral 8 denotes a connecting plate that connects the columns 5 located on the front side and the rear side on both sides of the machine room part A, and serves to reinforce each column 5 and attach a cistern tank (not shown), etc., as necessary. It will be done. 9 and 10 are the compressor and suction accumulator fixed on the stand 2, and the machine room part A
They are arranged so as to be offset toward one side of the board and to form a predetermined space on the other side. 11 is a water side heat exchanger consisting of an inner tube and an outer tube, which are wound into a coil shape and fixed on the table 2 by a pair of support plates 12; Also, water flows between the inner and outer tubes. Further, the water side heat exchanger 11 is located on the back side of the machine room portion A, and is arranged in an L-shape with the compressor 9 and the accumulator 10. Reference numerals 13 and 14 denote water inlet pipes and water outlet pipes that communicate with the water circuit of the water side heat exchanger 11, and are connected to the air conditioning circuit (not shown) from either side. It is extending. 15 is a circulation pump installed in the water inlet pipe 13; 16 is a hinge 1 on the front support column 5;
For example, when installing the circulation pump 15 or servicing the refrigerant circuit, the control box 16 is rotated to the front side to obtain a predetermined service space in the machine room.

Next, the heat exchange chamber portion B shown in FIG. 3 will be explained. In the figure, 18 are arranged in a V-shape to face each other, and the refrigeration cycle equipment 9, 10, 1
As shown in FIG. 4, each heat exchange element 18 includes a large number of fins 18a, tube sheets 18b located on both sides of the fins 18a, and a plurality of fins 18a and It consists of a heat exchange tube 18c that penetrates the tube plate 18b and a u-bend 18d that communicates the heat exchange tube 18c to form a refrigerant flow path. Note that the tube plate 18b is bent at the opposite side of the heat exchange element 18 to form a flange portion 180b, and this flange portion 180b is provided with a screw insertion hole 181b. Also, a bent portion 182b is provided on the lower side of the tube plate 18b.
A bolt hole 183b is provided in this bent portion 182b.
has been established. Further, the tube plate 18b on the rear side has a right triangular ventilation hole 184b punched out below the fin 18a. A pair of inverted triangular closing plates 19 close the front side and the back side between the flange portions 180b of the heat exchange element 18;
a, 19b are the top and slope installation surfaces formed by bending the top side and two oblique sides of the closing plate 19 outward, respectively; the slope installation surface 19b has screw insertion holes 1;
90b is provided. Therefore, the closing plate 19 and the respective flanges 180b and 19b of the tube plate 18b of the heat exchange element 18 are overlapped to form the screw insertion hole 1.
By inserting and tightening the mounting screws 21 through 90b and 181b, each heat exchange element 18 is attached to the closing plate 19.
It is assembled into one piece while being supported by. 19c
are a pair of support parts provided on the pair of closing plates 19 and located between the heat exchange elements 18;
Reference numeral 9c is provided by making parallel notches of a predetermined width and extruding between the notches from the outside to the inside to form a support hole 190c, and the extruded surface 191c has a screw hole 192c. It is provided. Again in FIG. 3, 24 is the blade part 2.
4a and a motor section 24b, the blower 25 is configured such that the motor section 2
A pair of support members that support 4b from both sides are bent into an L-shape. 25a is a support piece formed on the vertical surface of this support member 25, and a screw 26
It is attached to the motor part 24b by. 25b is a mounting piece formed by bending both ends of the horizontal surface of the support member 25 downward and having a screw insertion hole 250b.
90c, insert the mounting screws 26 into the screw insertion holes 250b and the screw holes 192c, and tighten them.
9 to constitute a forced draft heat exchanger unit. 27 is a drain pan installed on the installation surface 5b of each support 5, and 27a is this drain pan 2.
Screw insertion holes provided on the left and right sides of 7, 27b
is a series of horizontal installation surfaces formed on the inner peripheral edge of the drain pan 27, and bolt holes 270b are provided at each corner of this horizontal installation surface 27b. Reference numeral 27c denotes a reservoir section connected to the horizontal installation surface 27b and drawn so that the depth of the drain pan becomes deeper sequentially from the front side to the rear side. A drain outlet 27d communicating with the deepest position of the reservoir section 27c is have Therefore, the screws 6 of each support column 5 are inserted into the bolt holes 270b of the drain pan 27 configured in this way, and the bolt holes 1 in the lower end installation surface of the closing plate 19 are inserted.
90b and tightened with the nuts 28, the heat exchanger unit will be supported by each support column 5 via the drain pan 27.

Next, the casing portion C shown in FIG. 1 will be explained. In the figure, 29 is a front panel that covers the front side of the machine room part A and the heat exchange room part B, and has a mounting surface 29a formed by bending both ends and a mounting surface 29a formed by bending the upper end. It has an upper end overlapping surface 29b that is recessed inward by approximately the thickness of the plate. Furthermore, the mounting surface 29d has protrusions 290a projecting outward at predetermined intervals, and a screw insertion hole 2 at the lower end.
91a, and a screw hole 290b is provided in the overlapping surface 29b. Reference numerals 30 and 31 denote left and right side panels 30a and 3, each of which is bent into an L-shape in cross section and covers the left and right side surfaces and half of the rear surface of the machine room section A and the heat exchange room section B, respectively.
1a is an air suction port formed by square punching at a position corresponding to the heat exchange chamber portion B of the side panels 30, 31, and 30b, 31b is provided at a position corresponding to the left and right side surfaces of the drain pan 27 on the side panels 30, 31. The screw insertion holes 30c and 31c are located on the side panel 3.
Protrusions 300c, 310c and 310c are formed in the same manner as the protrusion 290a of the front panel 29 at the front end overlapping surface where the front side edges of Nos. 0 and 31 are bent inward by approximately the thickness of the plate. Screw hole 301c, 3
11c. 30d and 31d are side panels 3
0,31 to the overlapping surface 29b of the front panel 29.
The screw hole 300 is formed in the same manner as the upper end overlapping surface.
d, 310d. Reference numeral 30e denotes a rear end overlapping surface formed at the rear end portion of the side panel 30 on the back side in the same manner as the front end overlapping portion 30c. Therefore, in such a panel configuration, first, the side panels 30 and 31 are placed on the stand 2, and the mounting position is determined by the projections 4 shown in FIG.
The rear end of the side panel 31 is overlapped at 0e. This overlapped part is tightened and fixed with a mounting screw (not shown), and the screw insertion hole 30 of the side panels 30, 31 is
b, 31b and the screw hole 27a of the drain pan 27
When the mounting screws 32 are inserted into and tightened, the left and right side surfaces and back surfaces of the machine room section A and the heat exchange room section B are covered. And the mounting surface 29a of the front panel 29
When the overlapping surfaces 30c and 31c of the side panels 30 and 31 are fitted together and the front panel 29 is pressed, the protrusion 290a of the front panel 29 and the protrusions 300c and 310c of the side panels 30 and 31 engage with each other, and the mounting surface The front panel 29 is attached to the side panels 30, 31 with the overlapping surfaces 30c, 31c overlapping the front panel 29a, and the front panel 29 and the side panels 3
0,31 screw insertion hole 291a and screw hole 3
The assembly of the casing portion C is completed by inserting the mounting screws 33 into the holes 01c and 311c and tightening them.

Next, the top plate portion D shown in FIG. 5 will be explained. In the figure, reference numeral 34 denotes a top plate formed into a dish shape by drawing, with an air outlet 34a in the center and equally spaced screw insertion holes 34b in the periphery of the air outlet 34a. Furthermore, screw insertion holes 34c are provided on each side surface. 35 is a ventilation net of a predetermined mesh attached to the lower surface of the air outlet 34a, 36 is a bell mouth made of thin steel plate or resin that is formed to widen from the upper end toward the lower end;
At the upper end, screw holes 36a are provided at the same pitch as the screw insertion holes 34b of the top plate 34. Therefore, the mounting screw 37 is inserted into the screw insertion hole 34b of the top plate 34, the mesh of the ventilation net 35, and the screw hole 3 of the bell mouth 36.
6a and tighten it to remove the top plate 34 and ventilation net 35.
and the bell mouth 36 are assembled together. The top plate portion 34 configured in this way has an overlapping surface 29b of the front panel 29 and side panels 30, 31,
30d and 31d, and the screw insertion holes 34c and screw holes 290b and 300 in the overlapped portions.
The assembly of the air conditioner is completed by inserting and tightening the mounting screws 38 shown in FIG. 1 through holes d and 310d. Therefore, when the compressor 9 and the blower 24 are operated, the air inlets 30a, 31a of the side panels 30, 31 are viewed from the left and right sides, and the air inlets 30a, 31a and the tube plate 18b of the heat exchange element 18 are viewed from the rear side. Air flows through the ventilation opening 184b to the heat exchanger unit, where it exchanges heat with the refrigerant, and then is discharged to the outside through the bell mouth 36, the ventilation network 35, and the air outlet 34a. On the other hand, on the refrigeration cycle side, normal cooling operation is performed and cold water is obtained in the water side heat exchanger 11. Circulate this cold water pump 1
5, the air is supplied to an air terminal (not shown) provided in the room to cool the room.

As described above, in this invention, a pair of heat exchange elements are arranged facing each other, and the closing plate connects the heat exchange elements to form one body, and closes the opening formed between the two heat exchange elements. Therefore, the structure is extremely simple, easy to assemble, and the number of parts is reduced, resulting in cost reduction.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of the entire air conditioner showing an embodiment of the present invention, and FIGS. 2, 3, 4, and 5 show the machine room portion of the air conditioner,
FIG. 2 is an exploded perspective view of a heat exchange chamber portion, a detailed assembly view of a heat exchange element, and a top plate portion. In addition, in the figures, the same reference numerals indicate the same or corresponding parts. In the figure, 2 is a stand, 3 is a mounting foot, 4 is a protrusion, 5 is a column, 6 is a screw, 7 is a bolt, 8 is a connecting plate, 9 is a compressor, 10 is an accumulator, 11 is a water side heat exchanger , 12 is a support plate, 13 and 14 are water inlet pipes,
and water outlet piping, 15 is a circulation pump, 16 is a control box, 17 is a hinge, 18 is a heat exchange element, 18b
19 is a tube plate, 19 is a support member, 21 is a mounting screw, 24 is a blower, 25 is a support member, 26
is the mounting screw, 27 is the drain pan, 28 is the nut,
29 is the front panel, 30, 31 are the side panels, 32,
33 is a mounting screw, 34 is a top plate, 35 is a ventilation net, 3
6 is a bell mouth, and 37 and 38 are mounting screws.

Claims (1)

[Claims] 1 A pair of heat exchange elements consisting of a large number of fins, tube sheets located on both sides of the fins, and heat exchange tubes penetrating the fins and tube sheets are arranged facing each other, and the heat exchange elements are connected to each other. and a pair of closing plates for closing between the heat exchange elements, and a blower device attached to the pair of closing plates for ventilation to each of the heat exchange elements. air conditioner.