JPH0114825Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an outdoor unit that can be formed into a vertically long and thin shape and has a compact structure without taking up much installation space.

(Prior art) A single outdoor unit for an air conditioner that is shared by multiple indoor units is installed outdoors or in a machine room. It is desirable to have a compact structure that can be used to reduce the number of air conditioners, and many of them are long and thin with short dimensions in the front and back depth directions. Recently, outdoor units equipped with two or more compressors have been frequently used, and there is a tendency for even more compact units to be required.

To meet these demands, an outdoor unit using a horizontal compressor has been developed, for example, in the
This is known from JP 58-67283, especially from FIGS. 3 and 5, which uses one horizontally placed compressor and places it below a horizontally arranged partition plate.
The outdoor coil, such as a condenser, is placed above this partition plate, creating a vertically long and thin structure, but the outdoor coil and compressor are placed above and below the horizontally arranged partition plate. The height of the outdoor unit is the sum of the required height dimensions of both devices, and the problem is that the height is longer than the depth.Furthermore, since there is only one compressor, it is difficult to compress it. Another problem was that if a two-machine structure was to be used, the height or depth would have to be further increased.

On the other hand, as an example of a structure in which a plurality of compressors are installed under a partition plate, there is a known structure disclosed in Japanese Utility Model Application Publication No. 58-135664, particularly in FIG.
The problem was that the compressor was long and tall because it was installed vertically.

Therefore, in 1983, a horizontal compressor was used, and the compressor and the outdoor coil were placed one behind the other, rather than one above the other, thereby significantly shortening both the height and depth. This is a known method proposed in Japanese Patent No. 55377, and is schematically shown in FIG.

In the above example, the upper and lower partition plates 7' that partition the compressor 13' and the outdoor coil 16' are
It has a swash plate structure which is inclined from the lower edge of the housing 6' toward the exhaust port, and refrigerant circuit parts such as a horizontal compressor 13' and an accumulator are fixed to the bottom plate of the housing.

Although this has the advantage of reducing the external dimensions, if the compressor 13' or the like is to be taken out of the housing for maintenance reasons, the outdoor fan 17' and the motor for the fan 17' may be removed. M,
There is a drawback that it is necessary to remove all the upper and lower partition plates 7', which makes maintenance extremely troublesome.
It is fully expected that if two compressors 13' are installed, the external dimensions will increase significantly.

Furthermore, apart from the above-mentioned known example, there is an example of the Utility Model Openings published in 1983-
69969, the main structure of which is shown in Figure 8, is a machine room in which two compressors 13', 13'' are placed adjacent to the side of a fan coil room 9'. Since the structure is installed at 10', the height is low, but the floor area of the machine room is large, and the horizontal area occupied for installation is large, and as a result, the bottom frame has to be enlarged. The biggest drawback was that it disappeared.

(Problems to be solved by the invention) In this way, in each of the conventional examples, only one of the floor area and height can be reduced, and the other has problems in terms of form, which leads to an increase in size. This invention was developed in response to the fact that there are difficulties in workability when maintaining compressors, which prevents outdoor units equipped with multiple compressors from being more compact and easier to handle. The horizontal area occupied by the compressor and refrigerant container can be reduced by special consideration of the shape and installation of the compressor and the refrigerant container, as well as the shape and arrangement of the partition member that separates the fan coil room from the machine room. The main purpose of this invention is to make it possible to reduce the size and height of the compressor, and also to improve the maintenance of the compressor, thereby increasing its versatility in terms of both equipment cost and maintenance management. .

(Means for Solving the Problems) Therefore, the present invention provides a horizontal compressor 13 having a plurality of compression mechanisms 14 and 15, an outdoor coil 16, and an outdoor fan 17 as an outdoor unit of an air conditioner. , the structure is based on a structure in which large and vertically elongated refrigerant containers 18 and 19 such as an accumulator are provided in a casing 1, and upper and lower partition members 7 are installed horizontally in the casing 1, and left and right partition members are provided horizontally in the casing 1. 8 is set upright, and an L-shaped machine room 10 is formed inside the casing 1, comprising a horizontally elongated space 11 provided below the upper and lower partition members 7 and a vertically elongated space 12 provided on the sides of the left and right partitions 8. and a fan coil chamber 9 formed between the casing 1 and the machine chamber 10.
The casing 1 forming the fan coil chamber 9 is provided with air circulation ports 4, 5, and 6, and an outdoor fan 17 and an outdoor coil 16 are disposed within the fan coil chamber 9. , the upper and lower partition members 7 have a partition plate structure that is inclined upward from the lower end of the outdoor coil 16 to the lower end of the air circulation port 4, and the horizontally installed compressor 13 is connected to the horizontally elongated space 11. The refrigerant containers 18 and 19 are housed in the longitudinal space 12 and fixed to a compressor mounting plate 20 provided so as to be slidable in the longitudinal direction.
The structure is such that it is housed in a

(Function) In the present invention, the compressor 13 is connected to a plurality of compression mechanisms 14, 1.
5 is installed horizontally and integrally, it is possible to reduce the height dimension for installation as much as possible. L below and to the side of
The compressor 13 is housed in the lower horizontally elongated space 11, and the vertically elongated refrigerant containers 18 and 19 are housed in the vertically elongated space 12. In order to reduce each dimension (length), it is possible to effectively utilize the space within the casing to create a structure in which each device is compactly assembled.

Furthermore, since the upper and lower partition members 7 have an inclined partition plate structure, the compressor 13 can be connected to the outdoor coil 16.
Since the compressor 13 and the outdoor coil 16 can partially overlap vertically and longitudinally, the height dimension of the unit can be reduced. It is possible to prevent the depth dimension from increasing to the left while shortening the length.

In addition, since the compressor 13 is fixed to a compressor mounting plate 20 that can be slid in and out of the front and back direction, the partition member, the empty outside fan 17, and the refrigerant container 1
8 and 19, maintenance is easy.

(Example) Hereinafter, the present invention will be described in detail based on the accompanying drawings.

Figures 1 to 3 show the structure of one example of the outdoor unit of the present invention, in which 1 is a casing in the shape of a vertically thin rectangular box with a shallow depth and a high height (length); A bottom frame 2 is provided at the bottom, and an L-shaped coil support stand is integrally made of channel steel and is abutted against the left side edge of the periphery of the bottom frame 2 and a majority of the trailing edge thereof. 3
The front surface of the casing 1 has an air flow port 4, such as an exhaust port, while the back and left side surfaces have air flow ports 5, 6, such as an intake port.

The inside of the casing 1 has an upper and lower partition member 7 formed from the coil support stand 3 and a partition plate section connected to the support stand 3 and installed horizontally near the bottom frame 2.
and the casing 1 from the right end of the upper and lower partition member 7.
A rectangular box-shaped fan coil chamber 9 having an exhaust port 4 and intake ports 5, 6 is formed by a left and right partition plate 8 extending upright parallel to the right side plate of the casing, and
The fan coil chamber 9 is partitioned into an L-shaped machine room 10 consisting of a horizontally elongated space 11 and a vertically elongated space 12 provided below and on the sides.

In the fan coil chamber 9, an outdoor fan 17 having a propeller-shaped structure with a short rotational axis is disposed in front of the exhaust port 4, and its width is smaller than its depth. An outdoor coil 16 having an L-shaped horizontal cross section with a long horizontal cross section, for example, a cross-fin coil, is placed and fixed on the coil support stand 3 at the rear of the inlet 5, 6 located directly inward. It's forcing me.

On the other hand, in the horizontally elongated space 11 of the L-shaped machine room 10, two compression mechanisms 14 and 15 are arranged horizontally and are housed in a horizontally cylindrical housing 21 connected to the left and right. A compressor 13 of the shape They are connected to each other via piping to form a predetermined refrigeration cycle.

Note that 22 is an electrical component box disposed in the upper part of the vertically elongated space 12.

Therefore, the left and right partition members 8 are formed of vertically long flat plates, and extend between the front plate of the casing 1 and the end tube plate of the outdoor coil 16 and between the top plate and the upper and lower partition members 7. On the other hand, the upper and lower partition members 7 are formed from a partition plate portion having a horizontal surface portion and a slope portion bent at an obtuse angle, and a top plate portion of the coil support base 3. By abutting both members and horizontally disposing them between the front and rear surfaces of the casing 1, the structure is arranged so as to be inclined upward from the lower end of the outdoor coil 16 to the lower end of the exhaust port 4. will be established.

By forming the upper and lower partition members 7 into a swash plate structure in this way, the horizontally elongated space 11 is designed so that the compressor 13 is located not directly below the outdoor coil 16 but diagonally forward and downward, as shown in FIG. It is possible to provide an appropriately long overlapping margin between the compressor 13 and the outdoor coil 16 in the direction and height direction, and the external dimensions can be shortened as much as possible.

The partition plate portion of the upper and lower partition member 8 is fixed by partially locking the rear edge portion to the top plate portion of the coil support base 3, and the front edge portion is fixed at several locations distributed on the front side of the casing 1. , for example, a support leg member 23 consisting of a steel bar standing upright at two points.
They are fixed by engaging with each other by tightening screws, etc., and are thus stably positioned.

In this embodiment, the partition plate portion of the upper and lower partition member 8 is provided with a raised edge portion by bending the right end and front end of the horizontal surface portion slightly upward, so that rainwater and the outdoor coil 16 can be prevented from entering the machine room 10. This helps prevent drainage from entering the tank.

On the other hand, the coil support stand 3 is formed as a stand to support the outdoor coil 16 which is large and relatively heavy, and as shown in FIG. 4, the top plate part is made of channel steel. Drain holes 24 are drilled at several locations on the outside, and a gutter 25 with an upright plate fixed by welding or the like is installed on the inner pocket side of the channel steel material to remove drain and rainwater falling from the outdoor coil 16. It is formed so that it can be led to the gutter 25 through the drain hole 24.

The gutter 25 is provided on a longitudinal side member extending from side to side and a short side member extending from front to back of the coil support base 3 having an L-shaped cross section, and is directed toward a corner where both members intersect at right angles. It is installed so that it slopes downward, and these two gutters 25, 25
The drain and rainwater collected at the corner are received by a drain receiver 26 arranged at this corner, and can be discharged outside the unit through a drain pipe connected to the drain receiver 26. It's summery.

Thus, the coil support stand 3 serves both as a stand and as a drainer for receiving and discharging drain, and is configured to prevent icing during winter operation.

Next, to briefly explain the structure and mounting manner of the compressor 13, the compressor 13 has compression elements 14A, 15
A and motors 14B and 15B are directly connected to each other.

The compressor is of a horizontal type in which two horizontally elongated compression mechanisms 14 and 15 are disposed on the left and right sides in an oblong cylindrical housing 21, and the illustrated example is a high-pressure dome-shaped compressor with a high pressure region inside the housing 21. Suction mufflers 27, 27 provided in association with the compression mechanisms 14, 15 are located on the same front or rear side of the housing 21, and are connected to the compression elements 14A, 15A through piping, respectively. .

By doing so, the horizontal area occupied by the compressor 13 can be reduced as much as possible, and in particular, the depth dimension in the front-rear direction can be shortened.

In FIG. 5, reference numeral 28 denotes mounting legs extending from the housing 21 at two locations in the front and back, perpendicular to the longitudinal direction of the housing 21, and each having a bolt insertion hole at its tip.

The compressor 13 having the above-described structure is not directly fixed to the bottom frame 2, but is fixed to the front side of the casing 1 via a compressor support 29 and a compressor mounting plate 20 as shown in the figure. It is housed in the horizontally elongated space 11 so that it can be taken in and taken out.

The compressor support stand 29 includes a front frame 29A and a rear frame 29B of equal shape made of elongated steel plates with a square cross section, and a right side frame 2 of equal shape made of an elongated steel plate with a square cross section.
The four frames 9C and left side frame 29D are connected to form a rectangular frame, and the compressor support stand 29, which becomes this rectangular frame, is placed on a predetermined position of the bottom frame 2, and the front and rear The frames 29A and 29B are fixed to the bottom frame 2 with screws using screw holes drilled in the portions that make surface contact with the bottom frame 2, respectively.

However, in the left and right side frames 29C and 29D,
The side frames 2 are attached by welding or the like so that the longitudinal sides of the rails 30, 30 each having a cross-sectional shape extend in the front-rear direction.
The front end of each side frame 29C, 29D has a tongue piece 32 with a screw hole 31 that is inclined forward and downward, while the rear end has a floating tongue piece 32. A hook-shaped stopper 33 for preventing damage is integrally provided upright.

The compressor mounting plate 20, which is slidably mounted on the compressor support stand 29 having such a structure, is made by hollowing out the center of a rectangular plate made of thick steel plate into a rectangular shape similar to the rectangular plate. It is formed into a picture frame shape having a front side, a rear side, a right side, and a left side similar to the support stand 29, and the inner and outer edges of each side are bent slightly upward at right angles, and the left and right sides are bent slightly longer. At the front end, a tongue piece 35 having a small hole 34 is provided.
The tongue piece 32 has a position and an angle of inclination corresponding to the tongue piece 32, and is integrally protruded and inclined downward from the front.

Further, the compressor mounting plate 20 has the mounting legs 28, 28 on the front end side and the rear end side of the left and right sides.
Select positions corresponding to the bolt insertion holes provided in the 4 bolt insertion holes and drill the bolt insertion holes respectively, and insert the bolts 36 from below into each of the four bolt insertion holes to remove the corners of each bolt. The head is erected and fixed to the compressor mounting plate 20 by welding.

When the compressor mounting plate 20 thus constructed is mounted on the compressor support stand 29, the square heads of the two bolts 36, 36 on the right side fit into the grooves of the rail 30 on the right side frame 29C. On the other hand, 2 on the left side
Similarly, the square head of the book bolts 36 and 36 is on the left side frame 2.
9D, the compressor mounting plate 20 can be guided by the rail 30 and slid back and forth, and when pushed fully backward, the hook-shaped stopper 33 A stopper that comes into contact with the rear edge of the compressor mounting plate 20 and engages in a groove cut on the rear side to hold down the compressor mounting plate 20 so that it does not go any deeper and does not float up. Moreover, since the tongue pieces 35 and 32 overlap in this state, the compressor mounting plate 20 can be securely fixed with screws using the small hole 34 and the screw hole 31 so that it does not move.

The compressor 13 is a bushing-type anti-vibration rubber 3.
The compressor is mounted on the compressor mounting plate 20 so that the bolt insertion holes of the mounting legs 28 fit into the bolts 36 loosely fitted with the bolts 7, and are fixed to the bolts 36 with nuts. It can be securely fixed to the compressor mounting plate 20, and the compressor mounting plate 2
0 and the rails 30, 3 of the compressor support stand 29.
It can be slid along with 0.

In the outdoor unit described in detail above, by removing the front plate of the casing 1 and removing the support leg members 23, 23, there are no obstacles in front of the compressor 13 in the horizontally elongated space 11. The space section expands.

Therefore, when pulling out the compressor 13 forward for maintenance, after removing the refrigerant pipes connected to the compressor 13, the respective screw holes 31, 31 are removed.
When the screws screwed into the rail 3 are loosened and removed, and the compressor 13 is pulled forward, the compressor mounting plate 20 is attached to the rail 3, as is clear from the above.
0 and 30 and easily slides forward, the compressor 13 can be easily taken out.

Moreover, there is no need to remove the upper and lower partition members 7 when the compressor 13 is taken in and out.

By the way, during cooling and heating operations, the drain generated in the outdoor coil 16 or the rainwater that enters the fan coil chamber 9 and flows through the coil 16 is drained from the drain hole 24 of the coil support 3 as described above. After flowing down into the gutters 25, 25, the drain is discharged to the outside, so that the drain does not enter the machine room 10, and icing can be prevented, especially during winter operation.

In addition, the horizontally elongated space 11 surrounded by the bottom frame 2, the upper and lower partition members 7, the coil support 3, and the front plate of the casing 1 can prevent heat radiation from the compressor 13 and improve the heating capacity, while the outdoor coil 1
It is possible to prevent condensed ice from freezing by warming the drain dripping from 6.

(Effect of the invention) As described in detail above, the present invention has a plurality of compression mechanisms 1
A compressor 13 is used in which the compressor 4 and 15 are assembled into a horizontal structure and is stored horizontally in a horizontally elongated space 11 directly below the fan coil chamber 9. large refrigerant containers 18, 19
Since the fan coil chamber 9 is housed vertically in the longitudinally elongated space 12 on the side thereof, it is possible to reduce the height and width of the outdoor unit as much as possible to obtain a compact unit.

Moreover, unlike the case where the upper and lower partition members 7 are made of a horizontal plate, they are provided so as to be inclined upward from the lower end of the rear outdoor coil 16 to the lower end of the air circulation opening 4, so that the outdoor coil 16 and Compressor 1
3, it is possible to arrange an overlap in the height direction and the depth direction, and therefore the height,
It is possible to further reduce each dimension of depth.

Furthermore, since the vertically elongated space 12 only needs to have a space that can accommodate the elongated refrigerant containers 18 and 19 such as an accumulator, it is possible to suppress the increase in dimension in the width direction as much as possible, and the outdoor unit is made more compact as a whole. can be provided.

In the present invention, the compressor 13 is fixed to the compressor mounting plate 20 which is slidably provided in the front-rear direction and is housed in the horizontally elongated space 11, so that it is easy to remove the front plate of the casing 1. During work, a space free of obstacles can be developed in front of the compressor 13 and only the compressor 13 can be taken out, making maintenance of the compressor 13 extremely easy.

Thus, the present invention allows the height, depth, and height of the outdoor unit to be
By shortening each dimension of the width, it is possible to make the compressor 13 more compact, reduce the installation floor space, and facilitate maintenance work on the compressor 13.
Since the horizontally elongated space 11 that houses the fan coil chamber 9 is arranged below the fan coil chamber 9, various excellent effects can be achieved, such as preventing the drain from freezing during winter operation and realizing stable operation.

[Brief explanation of the drawing]

1 to 3 are a plan view, a front view, and a right side view showing an internal structure according to an example of the present invention, FIG. 4 is a perspective view of a coil support stand according to an example of the present invention, and FIG.
The figure is also an exploded perspective view of the mounting structure of the compressor, and Figure 6 is a cross-sectional front view of the rail section in Figure 5.
7 and 8 are a cutaway perspective view and a plan view of each example of a conventional outdoor unit. 1...Casing, 4...Air distribution port, 7...
Vertical partition member, 8... Left and right partition member, 9... Fan coil room, 10... Machine room, 11... Horizontally elongated space, 12... Vertically elongated space, 13... Compressor, 1
4, 15... Compression mechanism, 16... Outdoor coil,
17... Outdoor fan, 18, 19... Refrigerant container, 20... Compressor mounting plate.

Claims (1)

[Scope of utility model registration request] A horizontal compressor 13 having a plurality of compression mechanisms 14 and 15, an outdoor coil 16, and an outdoor fan 1
This outdoor unit is equipped with large and vertically elongated refrigerant containers 18 and 19 such as a refrigerant container 7 and an accumulator in a casing 1, in which upper and lower partition members 7 are installed horizontally, and left and right partition members 8 are installed upright. Inside the casing 1, there is an L-shaped machine room 10 consisting of a horizontally elongated space 11 provided below the upper and lower partition members 7 and a vertically elongated space 12 provided on the sides of the left and right partitions 8; and a fan coil chamber 9 formed between the fan coil chamber 9 and the machine room 10. Air circulation ports 4, 5, and 6 are provided in the casing forming the fan coil chamber 9, and a fan coil chamber 9 is provided in the fan coil chamber 9. While the outer fan 17 and the outdoor coil 16 are arranged, the upper and lower partition members 7 have a partition plate structure that is inclined upward from the lower end of the outdoor coil 16 to the lower end of the air circulation opening 4, The horizontally placed compressor 13 is housed in the horizontally elongated space 11 and fixed to a compressor mounting plate 20 that is slidably provided in the front-rear direction, and each refrigerant container 1
8 and 19 are housed in the vertically elongated space 12.