JPH04120540U - air conditioner - Google Patents

Abstract

(57) [Summary] [Purpose] The compressor, heat exchanger,
To improve the sound insulation of an air conditioner in which a fan for a heat exchanger is installed in a box together with a throttle, and to simplify the shape of refrigerant piping. [Structure] In an air conditioner in which a box body 20 houses at least a compressor 1, a four-way valve 2a, a heat exchanger 3, and a throttle constituting a refrigeration cycle, and a blower for the heat exchanger is installed, the box body 20 The bottom plates 14 and 15 have a double bottom structure, and a space 21 is formed between them, and the four-way valve 2a and a part of the refrigerant pipe 6a are disposed within the space 21.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention covers at least the compressor, four-way valve, heat exchanger, and This invention relates to an improvement of an air conditioner in which a wind fan is installed inside a box.

0002

[Conventional technology]

FIG. 3 shows the refrigeration cycle of the outdoor unit of a conventional separate air conditioner. frozen cyclone The compressor 1, four-way valve 2, heat exchanger 3, throttle 4, control valve 5, and refrigerant pipe 6 Consists of main parts.

0003 FIG. 4 shows a box housing the refrigeration cycle shown in FIG. 3. Air blower inside the box 7 is stored together with the above-mentioned refrigeration cycle, and is normally installed in the compressor room 10 and the blower room 11. It is separated by a cutting plate 8. 12 is the side plate, but it is usually attached to the box body to reduce weight. The iron plate is thinner than the bottom plate.

0004 FIG. 5 shows the refrigerant piping inside the compressor room 10. As shown in FIG. The refrigerant pipe 6 is connected to the compressor room 1 It runs in an extremely complex three-dimensional manner, as if threading through the gap in the space within 0. This refrigerant A rubber weight 9 is attached to an appropriate part of the pipe 6, and the rubber weight 9 is used to hold the refrigerant. It plays the role of adjusting the natural frequency of the pipe 6 and damping it, and has the effect of preventing resonance. It looks like this. The throttle 4, control valve 5, and piping connecting these are shown in Figure 5. is omitted.

[0005] In addition, sound absorbing materials and sound insulating materials are housed in the compressor room 10 in order to soundproof the compressor 1. In addition, electrical equipment is also accommodated, so it is packed with almost no gaps. ing.

[0006]

[Problem that the idea aims to solve]

In the conventional air conditioners shown in FIGS. 3 to 5, the refrigerant pipe 6 is connected from the compressor 1. Since the pipe serves as a propagation path for vibrations, it needs to be longer than a certain length depending on the pipe diameter. In addition, the refrigerant pipe 6 must not break due to displacement when the compressor 1 starts or stops. Therefore, it has no choice but to have a complicated shape as shown in FIG. However, on the other hand, complex shapes Therefore, it is difficult to control the shape, and in some cases, the refrigerant pipe 6 may come into contact with the outer box. It makes an abnormally high pitched sound when touched. Also, it goes without saying that it takes a lot of man-hours to bend the refrigerant pipe 6. This increases costs.

[0007] On the other hand, the four-way valve 2 is a valve that controls the flow of refrigerant, but the switching is not performed. Makes a loud noise when Although the four-way valve 2 is housed in the compressor room 10, , it is inevitable that sound will come out through the box body.

[0008] The present invention attempts to provide an air conditioner that can solve the above problems. It is something that

[0009]

[Means to solve the problem]

This invention includes at least a compressor, a four-way valve, and a heat exchanger that constitute a refrigeration cycle inside the box. Air exchanger and throttle are housed and installed, and a blower for the heat exchanger is installed. In the harmonizer, the bottom plate of the box body has a double bottom structure and a space is formed therebetween, The four-way valve and part of the refrigerant piping were arranged in the same space.

0010

[Effect]

Since the present invention has the above-mentioned configuration, it is possible to avoid the four-way valve which generates a large noise during switching and the noise. A part of the refrigerant piping that is the source of the sound is contained within the space formed by the bottom plate of the box with a double bottom structure. This improves sound insulation.

[0011] In addition, in the space formed by the bottom plate with a double bottom structure, the refrigerant piping should be installed in a flat manner. It is easy to manufacture and the shape is stable.

0012 Furthermore, the four-way valve and part of the refrigerant piping are placed in the space formed by the double bottom structure bottom plate. By doing so, the space inside the box above the bottom plate increases, and the suction in this area increases. It is possible to sufficiently insulate sound and noise, and it also prevents the vibration of the bottom plate caused by the compressor. The sound generated by this is insulated by the double bottom structure of the bottom plate and does not leak outside. .

[0013]

【Example】

An outdoor unit of a separate air conditioner according to an embodiment of the present invention is shown in FIGS. 1 and 2. explain. 20 is a box body, the bottom plate of which has a double bottom structure, an upper bottom plate 14 and a lower bottom plate 1. 5, a closed space 21 is formed between the upper and lower base plates 14 and 15. It is formed. The upper bottom plate 14 and the lower bottom plate 15 are used to support a compressor, etc., which will be described later. The rigidity has been increased as much as possible. The upper part of the upper bottom plate 11 of the box body 20 is The compressor room 10a is divided into a compressor room 10a and a blower room 11a that are lined up in the direction. The compressor 1 and sound insulation materials for soundproofing the compressor 1 are housed in the blower room 11a. A heat exchanger 3 and its blower (not shown) are housed in the housing.

[0014] In the space 21 formed by the upper bottom plate 14 and the lower bottom plate 15, the air from the compressor 1 is A refrigerant pipe 6 houses a four-way valve 2a into which refrigerant is introduced and is connected to the four-way valve 2a. As shown in FIG. 1, a is arranged two-dimensionally within the space 21. Also, space Inside the section 21, there is no direct contact between the refrigerant pipe 6a and the upper and lower bottom plates 14, 15. A plurality of spacers 13 made of elastic material are provided to position the refrigerant pipe 6a. It is.

[0015] The compressor 1, four-way valve 2, and heat exchanger 3 are constructed as shown in FIG. 3 together with a throttle (not shown). are connected to form a refrigeration cycle.

[0016] In this embodiment, the four-way valve 2a and refrigerant pipe 6a, which are sources of sound and vibration, are closed. The upper base plate 14 and the lower base plate 14 are housed in the space 21 formed by the Since the bottom plate 15 is highly rigid, noise caused by the four-way valve 2a and the refrigerant pipe 6a is reduced. It is possible to improve sound insulation against

[0017] Further, the refrigerant pipe 6a is connected to the upper and lower bottom plates 14 by spacers 13 made of elastic material. 15, and noise leakage to the outside is further prevented. It will be done.

[0018] The refrigerant pipe 6a has a planar shape as described above, so it is easy to manufacture. It is easy to do so, and its shape can be stabilized.

[0019] Furthermore, the four-way valve 2a and its piping 6a, which were conventionally housed in the compressor room, are moved to the space. By accommodating it in the compressor room 21, the space in the compressor room 10a increases. Therefore, sound absorption and insulation in the compressor room 10 can be sufficiently performed.

[0020] Furthermore, the sound generated by the vibration of the bottom plate by the compressor 1 is caused by the rigidity Because the sound is insulated by the high double-layer structure of the upper and lower base plates 14 and 15, no sound leaks outside. Never.

[0021]

[Effect of the idea]

This invention includes at least a compressor, a four-way valve, and a heat exchanger that constitute a refrigeration cycle. In addition to installing the heat exchanger and the diaphragm, the bottom plate of the box in which the blower for the heat exchanger was installed was A space is formed between them as a heavy bottom structure, and a four-way valve and part of the refrigerant piping are installed in the space. By arranging (1) Sound generated from the four-way valve and refrigerant piping is less likely to leak outside. (2) The sound generated by the vibration of the bottom plate due to the compressor is suppressed by the bottom plate with a double bottom structure. It is sound insulated and prevents it from leaking outside. (3) The refrigerant piping within the space can be arranged flatly, making it easy to manufacture. At the same time, the shape can be stabilized. (4) By arranging a four-way valve and a part of the refrigerant pipe in the space, it is possible to This increases the amount of space inside the box, allowing for sufficient sound absorption and insulation. It is possible to achieve the following effects.

[Brief explanation of drawings]

FIG. 1 is a partial perspective view of the interior of an outdoor unit of an air conditioner according to an embodiment of the present invention.

FIG. 2 is an outline diagram of the outdoor unit according to the same embodiment.

FIG. 3 is a system diagram of the refrigeration cycle of the air conditioner.

FIG. 4 is a plan view of an outdoor unit of a conventional air conditioner.

FIG. 5 is a perspective view of refrigerant piping and the like inside the compressor chamber of the outdoor unit of the conventional air conditioner.

[Explanation of symbols]

1 Compressor 2, 2a four-way valve 3 Heat exchanger 6, 6a Refrigerant piping 13 Spacer 14 Upper bottom plate 15 Lower bottom plate 10,10a Compressor room 11, 11a Blower room 20 Box body

Claims (1)

[Scope of utility model registration request] 1. An air conditioner comprising at least a compressor, a four-way valve, a heat exchanger, and an aperture constituting a refrigeration cycle housed in a box body, and a blower for the heat exchanger is installed. An air conditioner characterized in that the bottom plate has a double bottom structure, a space is formed therebetween, and the four-way valve and a part of the refrigerant piping are disposed within the space.