JP6480705B2 - Air conditioner - Google Patents

Description

  The present invention relates to an air conditioner.

  A conventional air conditioner is disclosed in Patent Document 1. The air conditioner described in Patent Document 1 mainly includes an exhaust heat side heat exchanger and a blower in the upper housing, and a compressor, a four-way valve, an expansion valve refrigeration cycle component, a use side heat exchanger, and a control in the lower housing. It is comprised with the box for control provided with the electronic component for use (refer FIG. 1, FIG. 2 of patent document 1). With this configuration, the maintenance work of the air conditioner is facilitated and the workability is improved.

International Publication No. 2011/099629 (Japanese Patent Application No. 2011-553918) (FIG. 1, FIG. 2, etc.)

  By the way, when installing an air conditioner for business use, after assembling once in the factory and confirming that the compressor operates normally, the air conditioner is divided into individual devices and parts and transported to the installation site. . Then, the individual equipment and parts are reassembled into the original air conditioner at the installation site, and the air conditioner is used.

  On the other hand, when an air conditioner is transported to the installation rooftop or the like without using an elevator, the equipment divided individually by a large crane must be lifted. When using a large crane, it is necessary to block the road. In addition, when a road is blocked, permission from a public institution is required. Therefore, there is a high need for transportation using an elevator.

  The air conditioner described in Patent Document 1 has an exhaust heat side heat exchanger installed in an upper housing, but includes a refrigeration cycle component such as a compressor in a lower housing. For this reason, when an air conditioner of a size that cannot be mounted in an elevator is carried in using an elevator, although it is highly maintainable, individual devices such as a compressor, a four-way valve, a pressure reducing device, a use-side heat exchanger, a control box, etc. Divide into equal parts. And after conveying each apparatus etc. to an installation place, it is necessary to reassemble to the original air conditioner in installation places, such as a rooftop.

  When transporting an air conditioner separately, divide the air conditioner into individual devices, wrap each device in packing material, store it in a cardboard or pallet, and carry it. Then, at the installation site, the packaging is unpacked and the individual devices and parts are reassembled into the air conditioner.

  At that time, an extra number of reciprocations and reassembly work are required for transportation. Therefore, due to the increase in the number of reciprocations in the elevator and the increase in reassembly work, it takes time from the installation site to the assembly work and the cost is increased.

  The present invention has been devised in view of the above circumstances, and an object thereof is to provide an air conditioner that can be easily transported and reassembled and can reduce installation costs.

In order to solve the above-described problems, an air conditioner according to the present invention includes a first component device constituting a plurality of refrigeration cycles, and a second component device through which a heat load medium flows so as to exchange heat with each of the refrigeration cycles. A plurality of lower housings on which some of the first and second constituent devices are mounted, and a plurality of lower housings provided on the lower housing and mounted with other constituent devices of an upper housing, wherein a lower housing and the upper housing, said portion of constituent equipment onboard the lower portion casing and the other constituent equipment onboard the upper Bukatamitai Each unit is disassembled and reassembled, and the lower casing is installed in a posture that is longer in the horizontal direction than in the vertical direction, and the horizontal dimension is longer than the vertical dimension. The upper casing is installed in a posture that is longer in the vertical direction than in the horizontal direction. Formed dimension is longer than the horizontal dimension, the number of the upper housing, the rather multi than the number of the lower housing, said upper housing includes a compressor is mounted as exhaust heat-side heat exchanger It is .

  According to the present invention, it is possible to realize an air conditioner that can be easily transported and reassembled and can be reduced in installation cost.

The refrigeration cycle system diagram of the air conditioner of Embodiment 1 which concerns on this invention. The perspective view which shows the division structure of the air conditioner of Embodiment 1. FIG. (a), (b) is a perspective view which shows the example of a utilization side heat exchanger holding member. (a) is the front view seen from the extension direction of piping in the state which connected between piping by the joint, (b) is sectional drawing which cut | disconnected piping to the longitudinal direction. The perspective view which shows the state which decomposed | disassembled the lower housing | casing. The perspective view which shows the state which decomposed | disassembled the lower housing | casing. (a) is a perspective view showing a posture in which one lower housing is rotated by approximately 90 ° in the vertical direction for transporting by elevator, and (b) is rotated by approximately 90 ° in the vertical direction for transporting the other lower housing by elevator. The perspective view which shows the attitude | position made to do. The perspective view which shows the completed shape after reassembly of an air conditioner. The perspective view which shows the division structure of the air conditioner of Embodiment 2 which concerns on this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
The air conditioner of the embodiment according to the present invention is an apparatus that performs cooling and heating, and is an air conditioner that is configured with a plurality of refrigeration cycles and that cannot be mounted on a transport elevator.

When an air conditioner having a size that cannot be mounted on an elevator is installed on the rooftop of the installation destination, the air conditioner needs to be divided into sizes that can be mounted on the elevator.
Therefore, it is necessary to reduce the number of divisions in order to suppress the number of elevator reciprocations and reassembly work.
Therefore, the present invention is characterized in that the air conditioner is divided in a state in which individual parts and devices are incorporated, and is divided so as to make maximum use of the dimensions in the elevator.

<< Embodiment 1 >>
FIG. 1 is a refrigeration cycle diagram of an air conditioner according to Embodiment 1 of the present invention.
The air conditioner C of Embodiment 1 includes a plurality of refrigeration cycles 1 (1A1, 1A2, 1B1, 1B2).

  In the refrigeration cycle 1, a compressor 1a, a four-way valve 2a, an exhaust heat side heat exchanger 3a, an expansion device 4a, a use side heat exchanger 5a or a use side heat exchanger 5b, and an accumulator 6a are connected by a pipe r. . Refrigerant sealed in the refrigeration cycle 1 passes through the pipes r, respectively, the compressor 1a, the four-way valve 2a, the exhaust heat side heat exchanger 3a, the expansion device 4a, the use side heat exchanger 5a or the use side heat exchanger 5b. And through the accumulator 6a.

  The solid line arrow of the four-way valve 2a in FIG. 1 indicates the flow of the refrigerant during the cooling operation. A heating operation is performed by switching the four-way valve 2a to the broken line arrow side. The use side heat exchanger 5a connected to the refrigeration cycles 1A1 and 1A2 and the use side heat exchanger 5b connected to the refrigeration cycles 1B1 and 1B2 are connected in series by a pipe 7a (7a1 and 7a2). The heat load medium responsible for cooling and heating passes through the pipe 7a and flows from the use side heat exchanger 5a to the use side heat exchanger 5b.

For example, water is used as the heat load medium, and low temperature water is produced in the case of cooling and high temperature water is produced in the case of heating by heat exchange in the use side heat exchangers 5a and 5b.
The compressor 1a is composed of a scroll compressor, a rotary compressor, or the like that has a variable operating capacity, a compressor that has a fixed operating capacity, or the like.
The use side heat exchangers 5a and 5b are configured by a laminated plate heat exchanger, a shell and tube heat exchanger, a double tube heat exchanger, and the like. The accumulator 6a performs gas-liquid separation so that liquid enters the compressor 1a and is not damaged.

<Cooling operation>
In the cooling operation, the high-temperature and high-pressure gas refrigerant compressed by the compressor 1a in the refrigeration cycle 1 passes through the flow path on the solid line side of FIG. 1 of the four-way valve 2a. Then, the heat is radiated and condensed by the exhaust heat side heat exchanger 3a to become a liquid refrigerant having a normal temperature and a high pressure.

  The room-temperature and high-pressure liquid refrigerant is decompressed by the expansion device 4a to become a low-temperature and low-pressure liquid refrigerant, and is vaporized by exchanging heat with the heat load medium sent from the pipe 7a in the use side heat exchanger 5a. It becomes a refrigerant and returns to the compressor 1a. In the use side heat exchangers 5a and 5b, the low-temperature and low-pressure liquid refrigerant absorbs heat from the heat load medium due to the latent heat of vaporization when the liquid refrigerant evaporates, thereby cooling the heat load medium.

<Heating operation>
In the case of heating operation, the high-temperature and high-pressure gas refrigerant compressed by the compressor 1a in the refrigeration cycle 1 passes through the flow path on the broken line side of FIG. 1 of the four-way valve 2a. Then, heat is exchanged with the heat load medium in the use side heat exchanger 5a to dissipate and condense into a liquid refrigerant at room temperature and high pressure. In the use side heat exchangers 5a and 5b, the heat load medium is heated by the condensation heat of the high-temperature and high-pressure gas refrigerant.
The room-temperature and high-pressure liquid refrigerant is decompressed by the expansion device 4a to become a low-temperature and low-pressure liquid refrigerant. The low-temperature and low-pressure liquid refrigerant is evaporated by the exhaust heat side heat exchanger 3a to become a low-temperature and low-pressure gas refrigerant and returns to the compressor 1a.

<Installation of air conditioner C>
FIG. 2 is a perspective view showing a divided structure of the air conditioner of Embodiment 1 according to the present invention.
When the air conditioner C is installed, in order to check the drive of the compressor 1a and the like and the operation check of the electronic components, it is common to check the operating state by assembling once in the manufacturer's production line. The operation check of the air conditioner C is not performed only at the delivery site. The air conditioner C is once assembled and transported, then disassembled and carried into the installation location (installation surface S), and the assembly procedure is performed again. Therefore, the air conditioner C is desired to have less disassembly work and reassembly work once assembled.

  Specifically, after confirming the driving and operation of the compressor 1a and electronic components, the air conditioner C is transported to an installation place (building) by a truck in an assembled state. However, considering truck transportation, the product height of the air conditioner C must be within the height limit of the Road Traffic Act, including the height of the truck bed, and the product height of the air conditioner C is within about 2500 mm. Is the limit.

After the air conditioner C is transported to the installation place (building) by truck, it is carried on the elevator to the installation place.
As described above, the air conditioner C is a size that cannot be mounted on an elevator, and is an air conditioner configured by a plurality of refrigeration cycles.

  If the air conditioner C is larger than the elevator car transported to the installation location (installation surface S) on the upper floor of the building, the air conditioner C is disassembled into a size smaller than the size of the elevator car, and the elevator car It is necessary to put on.

  The elevator car for carrying the air conditioner C has a shape in which the horizontal dimension is short and the vertical dimension is long. Horizontal dimensions are left and right dimensions and depth dimensions. The vertical dimension is the vertical dimension. The size of a cage of a 13-seater elevator of the JIS A4301 standard generally used is an entrance width (left-right dimension) of 900 mm, a depth of 1350 mm, and a height of 2100 mm (vertical dimension), and the height dimension is the largest.

  Therefore, the division shape has the same vertical shape as the internal shape of the elevator car and the number of divisions is reduced as much as possible. This has the effect of reducing the number of reciprocations of the elevator for carrying the air conditioner C. In other words, in order to reduce the number of times the elevator is used, it is desirable to divide the air conditioner C into the maximum size that fits within the elevator car size by effectively utilizing the height space of the car.

  Therefore, in the present invention, the air conditioner C can be disassembled and reassembled in unit units (upper housing 1K and lower housing 2K described later) having a size that fits the dimensions of the elevator car. Then, the air conditioner C is transported to the site by truck, disassembled in units of the upper casing 1K and the lower casing 2K of each unit, and the unit (upper casing 1K, lower casing 2K) in the elevator car Carry one to the installation floor each time.

From the above, first, since the air conditioner C is transported to the installation site by a truck, the height of the air conditioner C needs to be within about 2500 mm.
Secondly, since the elevator car is transported to the installation floor, the size of the air conditioner C when disassembled is the vertical elevator car dimensions (entrance width 900 mm, depth 1350 mm, height 2100 mm). It is necessary to fit.

Therefore, as shown in FIG. 2, the air conditioner C is divided into six parts, which are divided into four upper housings 1K arranged at the upper part and two lower housings 2K arranged at the lower part. did.
That is, the air conditioner C is divided into the lower housing 1K (1K1, 1K2) attached to the installation surface S and the upper housing 2K (2K1, 2K2, 2K3, 2K4) fixed on the lower housing 2K. , Divided and configured.

  By the way, in order to improve the heat exchange performance, a large surface of the exhaust heat side heat exchanger 3a is taken. And it is preferable that the waste heat side heat exchanger 3a is arrange | positioned at the upper part of the air conditioner C for waste heat. Moreover, since the exhaust heat area of the exhaust heat side heat exchanger 3a is large, it is preferable to place the exhaust heat side heat exchanger 3a vertically. This is because if the exhaust heat side heat exchanger 3a is placed horizontally, the air conditioner C becomes larger in the horizontal direction and the installation area of the air conditioner C becomes larger. Therefore, the exhaust heat side heat exchanger 3a is installed in the upper housing 1K.

  Since the exhaust heat area of the exhaust heat side heat exchanger 3a is large, the upper housing 1K in which the exhaust heat side heat exchanger 3a is installed has a vertically long shape. As an example, the vertical dimension of the upper housing 1K where the exhaust heat side heat exchanger 3a is placed is 1400 to 1500 mm.

  Each of the divided upper housing 1K and lower housing 2K has a size that is smaller than the size of a 13-seater elevator according to JIS A4301 and fits in the car. And the vertical dimension of the air conditioner C needs to be within about 2500 mm which can be transported by truck.

For these reasons, the upper housing 2K has a vertically long posture, and the lower housing 1K has a horizontally long posture that fits within a height of 1500 mm.
Then, when carrying in the elevator, the air conditioner C is divided into six parts, and the four upper housings 2K are carried in by the elevator as they are, and the two lower housings 1K are divided into the height dimensions of the elevator effectively. In order to reduce the number as much as possible, it is rotated about 90 ° and carried in by an elevator. Thereby, the four upper housing | casing 2K and the two lower housing | casing 1K can be carried in the elevator car one by one with the 13-seater elevator of the JISA4301 standard.

<Upper housing 1K>
Since the air conditioner C is configured by a plurality of refrigeration cycles, one refrigeration cycle is mounted on the upper housing 1K in which the exhaust heat side heat exchanger 3a is placed. Thereby, air conditioner C should just increase / decrease the number of upper cases 1K according to the number of refrigeration cycles. Since each upper housing 2K is equipped with the same type of components of the refrigeration cycle, the assemblability is good and the mass production is possible. Thereby, the air conditioner C has high productivity, and the production cost is reduced.

Therefore, the compressor 1a, the four-way valve 2a, the exhaust heat side heat exchanger 3a, the expansion device 4a, and the accumulator 6a constituting the refrigeration cycle are mounted on the upper housing 1K of the air conditioner C.
Further, since the upper casing 1K has a vertically long shape, it can be placed in the same posture without being placed horizontally on the elevator car. Therefore, the upper housing 2K is equipped with devices that need to be transported in the original arrangement posture without being laid down among the devices that constitute the air conditioner C.

  For example, a compressor having a rotation mechanism provided with a bearing and the like that cannot be rotated vertically by 90 ° is mounted on the upper housing 2K. When a vertical scroll compressor is used as the compressor 1a, the bearing is designed with a load applied in the vertical direction. Therefore, when the scroll compressor is transported in an elevator car, it is placed horizontally different from the original posture. This is because if the bearing is subjected to an excessive load different from the design, the bearing is damaged.

<Lower housing 1K1>
Since the lower casings 1K1 and 1K2 have a horizontally long shape, it is preferable to arrange components and equipment extending in the horizontal direction.
The lower housings 1K1 and 1K2 are mainly provided with use-side heat exchangers 5a and 5b, pipes 7a1 and 7a2, heat load medium circulating pump 8a and other parts through which a heat load medium flows, and a control box 9a.

  The usage-side heat exchanger 5a is mounted on the lower casing 1K1 from both sides in the longitudinal direction of the lower casing 1K1 using the usage-side heat exchanger holding members 10a and 10b (see FIGS. 3A and 3B). Fixed. FIGS. 3A and 3B are perspective views showing examples of the use side heat exchanger holding member.

  The use side heat exchanger holding member 10a shown in FIG. 3A is fixed to the insertion hole 10a1 through which the refrigerant pipe r1 of the use side heat exchanger 5a is inserted and the use side heat exchanger 5a (5b). A bolt insertion hole 10a2 is formed. Reinforcing brace 10a3 is fixed to lower plate 10a4 and upright plate 10a5 formed by bending with respect to lower plate 10a4 in utilization side heat exchanger holding member 10a.

  The lower plate 10a4 of the use side heat exchanger holding member 10a is fixed to the lower housing 1K1 by welding or the like. The use side heat exchanger 5a (5b) is fixed to the upright plate 10a5 with a bolt that passes through the bolt insertion hole 10a2.

  The utilization side heat exchanger holding member 10b shown in FIG. 3B includes a hole 10b1 through which the refrigerant pipe r1 of the utilization side heat exchanger 5a (5b) is inserted, and a bolt for fixing to the utilization side heat exchanger 5a. An insertion hole 10b2 is formed. Reinforcing support plates 10b3 and 10b3 are formed on the use side heat exchanger holding member 10b by bending both sides of the upright plate 10b5.

  The lower plate 10b4 of the use side heat exchanger holding member 10b is fixed to the lower housing 1K1 by welding or the like. The use-side heat exchanger 5a is fixed to the upright plate 10b5 with bolts that pass through the bolt insertion holes 10b2. In addition, the utilization side heat exchanger holding member 10b may not have the insertion hole 10b1 when the refrigerant pipe r1 is not inserted.

  The use side heat exchanger holding members 10a and 10b have a cross-sectional secondary moment I so that the use side heat exchangers 5a and 5b do not fall over even if the use side heat exchangers 5a and 5b are rotated by approximately 90 °. That is, the bending rigidity EI has a value that can sufficiently withstand the respective weights of the use side heat exchanger holding members 10a and 10b.

<Lower housing 1K2>
In the lower housing 1K2 of the air conditioner C, there is a circulation pump 8a for conveying the heat load medium to the inlet portions 5ai and 5bi (see FIG. 2) of the use side heat exchanger 5a and the use side heat exchanger 5b. Installed. Moreover, the use side heat exchanger 5b is mounted on the lower housing 1K2. Similarly to the use side heat exchanger 5a, the use side heat exchanger 5b is fixed to the lower housing 1K2 using the use side heat exchanger holding members 10a and 10b.

  The use side heat exchanger 5a on the lower housing 1K1 and the use side heat exchanger 5b on the lower housing 1K2 are connected via pipes 7a1 and 7a2. In other words, the heat load medium is pumped up by the circulation pump 8a and flows to the use side heat exchanger 5a and the use side heat exchanger 5b through the pipes 7a2 and 7a1. Thereby, the heat load medium is heat-exchanged by the use side heat exchanger 5a and the use side heat exchanger 5b, respectively, and a heat load medium at a desired temperature is created.

  The lower housing 1K1 and the lower housing 1K2 are individually assembled. The pipe 7a1 provided in the lower housing 1K1 and the pipe 7a2 provided in the lower housing 1K2 are relay-connected using a joint 11a (see FIGS. 4A and 4B). The joint 11a has the following configuration that can be easily divided and reassembled.

<Joint 11a>
Fig.4 (a) is the front view seen from the extension direction of piping in the state which connected between piping by the joint, and FIG.4 (b) is sectional drawing which cut | disconnected piping in the longitudinal direction.
One cylindrical rubber seal 11a1 is disposed on the outer periphery of the edge of the two pipes 7a1 and 7a2 to be connected (see FIG. 4B). The rubber seal 11a1 is covered with a pair of metal cases 11a2 from the outside, and the pair of cases 11a2 are tightened with bolts b1 to fix the seal 11a1.

<Configuration and connection assembly of lower housing 1K and upper housing 2K>
5 and 6 are perspective views showing a state in which the lower housing is disassembled.
Since the lower casings 1K1 and 1K2 have the same configuration, the lower casing 1K1 will be described, and the description of the configuration of the lower casing 1K2 will be omitted.

  The base B1 forming the lower housing 1K1 in FIG. 5 is configured by fixing a plurality of steel horizontal members w2 between the front and rear steel frames w1 by welding or the like. As the front and rear frames w1, for example, a substantially U-shaped grooved steel (sea channel) is used. A shape steel is used for the horizontal member w2.

Between the frame w1 and the horizontal member w2, a bottom plate t1 of a steel plate serving as a plate material is fixed by welding or the like to constitute a base B1. The bottom plate t1 of the water receiver is provided with a draining configuration.
A column material h1 constituted by a U-shaped bending of a sheet metal or an L-shaped bending is fixed to the frame body w1 and the horizontal member w2 of the base B1 by bolting, welding or the like, and the lower housing 1K1 is formed. It is. A brace s1 is fixed between the column members h1 by bolting or the like.

  And the control box 9a and the use side heat exchanger 5a are being fixed by bolting etc. on the frame w1, the horizontal member w2, and the bottom plate t1 of the lower housing 1K1.

  Similarly, the circulation pump 8 and the use side heat exchanger 5b are fixed by bolting or the like on the frame w1, the horizontal member w2, and the bottom plate t1 of the lower housing 1K2 in FIG.

The upper housing 2K shown in FIG. 2 has basically the same configuration as the lower housings 1K1 and 1K2.
A compressor 1a, a four-way valve 2a, an exhaust heat side heat exchanger 3a, an expansion device 4a, an accumulator 6a are attached to a frame body w1, a horizontal member w2, a bottom plate t1, etc. of the upper housing 2K (2K1, 2K2, 2K3, 2K4). Is detachably fixed by bolting or the like.

The frame body w1 of the upper housing 2K is detachably fixed to the pillar material h1 of the lower housings 1K1 and 1K2 by bolting or the like.
The pipes r1 and r2 are connected from the use side heat exchangers 5a and 5b of the lower casings 1K1 and 1K2 to the expansion devices 4a and accumulators 6a of the upper casings 2K1, 2K2, 2K3, and 2K4. Although a flare nut connection and a flange connection which are not necessary are basically used, a means such as welding using a firearm may be used.

<Installation of air conditioner C>
When the air conditioner C is transported to the installation location (installation surface S), the air conditioner C is first once for each unit of the upper and lower casings 1K and 2K divided on the production line in the factory. Assembled. And the operation check of the compressor 1a in the air conditioner C and an electronic component is performed. And it is carried by the truck to the building where the air conditioner C is installed.

  After that, it is disassembled in units of upper and lower housings 1K and 2K for transporting to the floor where the installation location (installation surface S) is located by an elevator. And the upper housing | casing 1K or the lower housing | casing 2K is carried to the installation floor in the cage | basket | car of an elevator one by one.

  Here, the upper casings 2K1 to 2K4 have a vertically long shape. Therefore, when the equipment of the air conditioner C transports the upper housings 2K1 to 2K4 by an elevator, it is placed on the elevator car in a posture installed on the installation surface S (see FIG. 8) and transported.

  On the other hand, since the lower casings 1K1 and 1k2 have a horizontally long shape, as shown in FIGS. 7 (a) and 7 (b), the lower casings 1K1 and 1k2 are placed on the elevator car in a posture rotated approximately 90 degrees. Transported. FIG. 7A is a perspective view illustrating a posture in which the lower casing 1K1 is rotated by approximately 90 ° in the vertical direction in which the lower casing 1K1 is transported by an elevator. FIG. 7B is a vertical view in which the lower casing 1K2 is transported by an elevator. It is a perspective view which shows the attitude | position rotated 90 degrees to the direction.

  Since the lower housing 1K1 is rotated about 90 degrees when transported by an elevator, the lower housing 1K1 is installed on the lower housing 1K1 so that the center of gravity G1 is below the middle when the posture is rotated about 90 degrees. A device control box 9a, a use side heat exchanger 5a, and the like are arranged.

The position of the center of gravity G1 in the lower housing 1K1 is calculated from the position of the center of gravity of the control box 9a, the position of the center of gravity of the use side heat exchanger 5a, and the like.
Since the lower housing 1k2 is rotated about 90 degrees when transported by an elevator, the lower housing 1k2 is installed on the lower housing 1K2 so that the center of gravity G2 is below the middle when the posture is rotated about 90 degrees. A circulation pump 8a, a use-side heat exchanger 5b, and the like of the devices are arranged.
The position of the center of gravity G2 in the lower housing 1K2 is calculated from the position of the center of gravity of the circulation pump 8a, the position of the center of gravity of the use side heat exchanger 5b, and the like.

When the lower housings 1K1 and 1K2 are carried by an elevator, the pallet p1 is used.
When the lower housing 1K2 is carried, the pipe 7a2 is located at the lower part, so that the tip of the pipe 7a2 is wrapped with a cushioning material and transported.

In this case, since the air conditioner C is disassembled into six upper and lower casings 1K and 2K, the elevator is reciprocated six times and transported.
Then, at the installation location (installation surface S), the disassembled upper and lower casings 1K and 2K are joined to reassemble the air conditioner C (see FIG. 8). FIG. 8 is a perspective view showing a completed shape of the air conditioner after reassembly. FIG. 8 shows a state where the cabinet (not shown) of the air conditioner C is removed.

  In this way, after assembling the air conditioner C once on the production line, disassembly of the air conditioner C, transportation by elevator, and reassembly at the installation location (installation surface S) are performed in units of the upper and lower housings 1K and 2K. To be done.

According to the said structure, there exists the following effect.
1. An air conditioner C having a size that cannot be mounted on an elevator composed of a plurality of refrigeration cycles is composed of a lower casing 1K and an upper casing 2K that incorporate internal components such as use side heat exchangers 5a and 5b. A unit for disassembly, transportation, and reassembly. Therefore, the work of disassembling, transporting, and reassembling the air conditioner C is performed in units of the lower housing 1K and the upper housing 2K, thereby saving labor and reducing the amount of work.

2. The lower housings 1K1, 1K2 are horizontally long, and the upper housings 2K1, 2K2, 2K3, 2K4 are vertically long. Then, the upper casings 2K1, 2K2, 2K3, and 2K4 are set to a size that can be placed on the elevator car as it is. The lower casings 1K1 and 1K2 have a structure that can be rotated upright by about 90 °, and have a size that can be carried into an elevator car in a posture rotated by about 90 ° vertically. Thereby, the division | segmentation number of the air conditioner C can be reduced as much as possible. Moreover, the lower casing 1K and the upper casing 2K can be carried one by one on the elevator car, and the number of reciprocations in the elevator can be reduced, so that labor saving can be achieved.

3. Since the lower housing 1K and the upper housing 2K are maximally sized to be placed on the elevator car, the number of divisions of the air conditioner C is reduced, and the air conditioner C can be disassembled, reassembled, and transported by the elevator. The amount of work can be reduced.

4). By installing parts and equipment that can be rotated about 90 ° vertically on the lower housings 1K1, 1K2, the use side heat exchangers 5a and 5b, the pipes 7a1, 7a2, the circulation pump 8a of the heat load medium, and the control box There is no need to disassemble and reassemble 9a.

5. Since the exhaust heat side heat exchanger 3a is arranged upright on the upper housing 2K, the exhaust heat area can be increased and the installation area of the air conditioner C can be made compact.

6). Since the compressor 1a is arranged in the upper housing 2K, the posture does not change during installation by an elevator and the rotation mechanism is not damaged. Therefore, the reliability of the compressor 1a can be maintained.

7). The upper housing 2K is mounted with a compressor 1a, a four-way valve 2a, an exhaust heat side heat exchanger 3, and an expansion device 4a. On the other hand, the lower housing 1K controls the use side heat exchangers 5a and 5b in which heat exchange of the heat load medium is performed, the pipes 7a1 and 7a2 through which the heat load medium flows, the circulation pump 8a, and the air conditioner C. A control box 9a including control electronic components is mounted.
Thereby, the same kind of component equipment of each refrigeration cycle can be mounted on the upper housing 2K. In addition, the pipes 7a1 and 7a2 through which the heat load medium flows can be configured long, and the number of connections of the pipes 7a1 and 7a2 can be reduced.

8). Since the same type of components of the refrigeration cycles 1A1 and 1B1 are mounted on the upper casing 2K, the same upper casing 2K can be mass-produced, and cost reduction by mass production can be achieved.

9. Since the horizontally long lower housings 1K1 and 1K2 are arranged on the lower side and the vertically long upper housings 2K1, 2K2, 2K3, and 2K4 are arranged on the upper side, the lower side is stable, so that the stability is high.

10. When the lower casings 1K1, 1K2 are transported by an elevator car, the center of gravity G1, G2 in a posture rotated by about 90 degrees is arranged below the center, so the lower casings 1K1, 1K2 The lower housings 1K1 and 1K2 do not fall down during transportation. Therefore, when carrying by an elevator, the stability is high, and the lower housing 1K1, 1K2 can be carried safely.

11. Since the height of the air conditioner C is 2.5 m or less, the air conditioner C can be transported by truck.

12 The number of divisions is reduced by adopting a structure in which the lower housing 1K incorporating the internal components such as the use side heat exchangers 5a and 5b can be rotated upright by about 90 °. For this reason, the number of reciprocations of the elevator can be reduced, and there is an effect that the work time is shortened and the carrying-in cost is greatly reduced.

13. As a result, the work of disassembling, transporting, and reassembling the air conditioner C is saved, and it can greatly contribute to the cost reduction of the installation work of the air conditioner C.

In the first embodiment, the upper housings 2K1, 2K2, 2K3, and 2K4 are divided into four and the lower housings 1K1 and 1K2 are divided into two. However, the number of divisions may be larger or smaller.
However, since the air conditioner C is disassembled, transported, and reassembled for each divided unit (upper housing 2K, lower housing 1K), it is desirable that the number of divisions is small in order to save labor. Further, not only one but also a plurality of refrigeration cycle components such as the compressor 1a, the four-way valve 2a, the exhaust heat side heat exchanger 3a, the expansion device 4a, the use side heat exchangers 5a and 5b, and the accumulator 6a are mounted. May be.

<< Embodiment 2 >>
FIG. 9 is a perspective view showing a divided structure of the air conditioner according to Embodiment 2 of the present invention.
The air conditioner 2C according to the second embodiment is configured such that the control box 9a is mounted on the upper housing 2K1.
Since other configurations are the same as those of the first embodiment, the same reference numerals are given, and detailed description thereof is omitted.

According to the above configuration, since the control box 9a is mounted on the upper upper housing 2K, wiring work is easy.
Further, the control box 9a is easy to operate, and the operability is good.
In addition, maintenance work can be performed easily and smoothly.

<< Other Embodiments >>
1. Although the case where the same device is mounted on the upper housings 2K1, 2K2, 2K3, and 2K4 has been described, a configuration in which the same device is not mounted may be employed.

2. In the air conditioners C and 2C of the first and second embodiments, the case of the two lower housings 1K1 and 1K2 and the four upper housings 2K1, 2K2, 2K3, and 2K4 has been described. The number of bodies may be singular or any plural number.

3. In the first and second embodiments, the car of a 13-seater elevator according to the JISA4301 standard has been described as an example. However, the upper housing 2K can be placed in the same posture as the installation posture, and the lower housing 1K can be rotated by approximately 90 degrees. The present invention can also be applied to elevators of other sizes as long as they are placed in the postures. That is, the upper casing 2K and the lower casing 1K can be configured so as to fall within the size of a car other than a 13-seater elevator according to the JIS A4301 standard. Also in this case, the same effects as the present invention can be obtained.

4). The first and second embodiments show examples of specific forms of the claims, and various specific forms are possible with the configuration described in the claims.

1, 1A1, 1A2, 1B1, 1B2 Refrigeration cycle 1a Compressor (first component device, component device of the same type)
1K1, 1k2 Lower housing 2a Four-way valve (first component, same type component)
2k1, 2k2, 2k3, 2k4 Upper housing 3a Waste heat side heat exchanger (first component, same type component)
4a expansion device (first component, component of the same type)
5a, 5b Use side heat exchanger (second component)
6a Accumulator (first component, same type component)
7a1, 7a2 piping (second component equipment)
8a Circulation pump (second component)
9a Control box (control device)
C, 2C Air conditioner S Installation surface

Claims (2)

A first component constituting a plurality of refrigeration cycles;
A second component device through which a heat load medium flows so as to exchange heat with each of the refrigeration cycles;
A plurality of lower housings on which some of the first and second component devices are mounted;
A plurality of upper casings provided on the lower casing and mounted with other components;
The lower housing and the upper housing are
Units one by one of the part of the configuration device wherein is mounted the lower section housing and said upper portion housing other constituent devices are mounted, decomposition, reassembly is performed,
The lower housing is installed in a posture that is longer in the horizontal direction than in the vertical direction, the horizontal dimension is formed longer than the vertical dimension,
The upper housing is installed in a posture that is longer in the vertical direction than in the horizontal direction, the vertical dimension is formed longer than the horizontal dimension,
The number of upper housing, rather multi than the number of said lower housing,
The upper casing is mounted with an exhaust heat side heat exchanger and a compressor, and is an air conditioner. A first component constituting a plurality of refrigeration cycles;
A second component device through which a heat load medium flows so as to exchange heat with each of the refrigeration cycles;
A plurality of lower housings on which some of the first and second component devices are mounted;
A plurality of upper casings provided on the lower casing and mounted with other components;
The lower housing and the upper housing are
Units one by one of said upper housing, wherein said lower portion housing construction equipment is mounted in the portion other constituent devices are mounted, decomposition, reassembly is performed,
The lower housing is installed in a posture that is longer in the horizontal direction than in the vertical direction, the horizontal dimension is formed longer than the vertical dimension,
The upper housing is installed in a posture that is longer in the vertical direction than in the horizontal direction, the vertical dimension is formed longer than the horizontal dimension,
The number of upper housing, rather multi than the number of said lower housing,
The upper housing is equipped with a compressor, a four-way valve, a heat exhaust side heat exchanger, an expansion device,
The lower casing is a control including a use side heat exchanger in which heat exchange of the heat load medium is performed, a pipe through which the heat load medium flows, a circulation pump for flowing the heat load medium, and control electronic components. An air conditioner that is equipped with a device.

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