JP3066305B2 - Air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner having improved reliability by reducing stress applied to piping during operation.

[0002]

2. Description of the Related Art Generally, in an air conditioner in which a compressor, an accumulator, and the like are connected to a pipe, the vibration of the compressor is suppressed, thereby suppressing the occurrence of cracks in the pipe connection and improving the reliability of the pipe connection. It is desired. Traditionally,
In order to suppress the vibration of the compressor, it is common to fix the compressor to the bottom plate of the air conditioner with a vibration-proof rubber (for example, JP-A-6-280798). However, in the case where the accumulator is connected to the compressor by piping, the vibration of the compressor tends to cause a crack in the connection portion between the two, and stress is concentrated on the U-shaped bent portion of the piping, so that the U-shaped piping is formed. Is considered to be inferior in earthquake resistance. For this purpose, conventionally, the piping is lengthened and bent, for example, into a U-shape, so that stress is not concentrated on the connecting portion between the two.

[0003]

However, conventional techniques are not perfect, and the piping is lengthened, for example, to reduce
If the pipe is bent into a character shape, this kind of pipe connection work is performed in a narrow portion, so that there is a problem that the connection work becomes extremely difficult.

[0004] Therefore, an object of the present invention is to make it possible to easily perform a pipe connection operation, and furthermore, it is possible to reduce the reliability of the pipe connection part without concentrating stress on the pipe connection part and the U-shaped pipe bent part. It is to provide an air conditioner that can be improved.

[0005]

[0006]

[0007]

[0008]

[0009]

According to a first aspect of the present invention, there is provided a partition plate for partitioning a heat exchange room and a machine room, and a vibration isolator is provided on a bottom plate of the air conditioner through the partition plate. One vibrating plate is provided which is fixed through the heat exchanger. An accumulator connected to a pipe is disposed on one portion of the vibrating plate, which extends into the heat exchange chamber, and the other extends into the machine room. An air conditioner characterized in that a compressor connected to a pipe is disposed in a portion of the air conditioner.

[0010] By doing so, the surface area of one vibration plate is increased, thereby suppressing the entire run-out. Therefore, the run-out of the pipe connection is reduced, and the reliability of the pipe connection is further improved. be able to.

[0011]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

The air conditioner according to the present embodiment is composed of an indoor unit (not shown) and an outdoor unit, and allows a refrigerant to flow through a refrigerant circuit connected by a refrigerant pipe to perform a cooling operation and a heating operation. It is supposed to. The outdoor unit is disposed outside and exchanges heat with outdoor air to condense the refrigerant during the cooling operation and release heat to the outside air, and evaporate the refrigerant during the heating operation to take in heat from the outside air.

As shown in FIGS. 1 and 2, the outdoor unit 5 houses refrigeration equipment of a refrigerant circuit. That is, a substantially L-shaped heat exchanger 9 is housed and arranged in a substantially L-shape, and a propeller fan 11, a fan motor 13, and a support plate 15 for mounting the fan motor for blowing outdoor air to the heat exchanger 9. Is stored. The panel 16
Is provided with a fan guard 17. On the right side in FIG. 2 in the indoor unit 5, a compressor 19 for forming a refrigerant circuit, an accumulator 21, a four-way valve 22, a strainer 23, a heater 25 wound around the compressor and heating the compressor are provided. Have been. At the upper part of the outdoor unit 5 in FIG. 2, various electric components 27 are arranged so as to be separated from the heat exchanger 9 by a partition plate 29 described later.

On the other hand, the outdoor unit 5 includes a bottom plate 31, outer plates 33 and 34, a top plate 35, and the panel 16 described above. Then, by driving a propeller fan 11 provided on the front side of the heat exchanger 9, outside air is blown to the heat exchanger 9 to exchange heat. In the present embodiment, the support plate to which the fan motor 13 is attached is separated into a pair of support plates 15a and 15b, as shown in FIG. 3, and the fan motor 13 is installed therebetween.

The pair of support plates 15a and 15b are formed by bending plates, and a lower portion 41 fixed to the bottom plate 31 and a support portion 43 to which the fan motor 13 is fixed.
And an upper part 45 sandwiched between the upper part of the heat exchanger 9 and the top plate 35. On the bottom 41,
A tongue piece 47 is formed on the bottom plate, and a screw hole 49 for screwing the bottom plate 31 is formed.

The upper part 45 is provided with positioning pieces 46 extending left and right, and the positioning pieces 46 hit the heat exchanger 9 to determine the positions of the support plates 15a and 15b. The support portion 43 is formed by cutting and raising a temporary fixing claw (hook) 53 which is engaged with a locking hole 51 (see FIGS. 4 and 5) formed in the flange 13a of the motor 13a. An intermediate portion of the support portion 43 is cut out in an arc shape so as to support the body of the fan motor 13. Also,
A screw hole 55 for screwing the flange 13a of the motor is formed in the support portion 43.

The upper part 45 is formed with a bent part 57 which is hooked and stopped on the upper part of the heat exchanger 9 as shown in FIGS.
As shown in FIG. 7, the bent portion 57 is fixed to the heat exchanger by screws. Support plate 1 for fan motor 13
In the state where the fan motor 13 is mounted on the heat exchanger 9, the pair of support plates 15 a and 15 b are arranged on the front surface of the heat exchanger 9 so as to sandwich the fan motor 13 as shown in FIG. There is enough space for ventilation. Moreover, since the support plates 15a and 15b are arranged separately, there is no need to form a ventilation hole required by one support plate, so that the processing of the support plate can be facilitated.

According to this embodiment, referring to FIG.
The interior of the outdoor unit 5 is divided into a heat exchange room 101 and a machine room 102.
As shown in FIG. 2, the partition plate 29 has an opening 29a, and a single vibration plate 103 extends through the opening 29a. Is provided.

Referring to FIG. 1, one vibration plate 103 straddles the heat exchange chamber 101 and the machine room 102, and therefore has a considerably large surface area.

One vibration plate 103 is fixed to the bottom plate 31 of the air conditioner via a vibration isolating rubber (vibration isolating means) 104, and on the vibration plate 103 and in the heat exchange chamber 101. The accumulator 21 which remains connected to the pipe is arranged in one of the extending portions 103a, and the compressor 19 which is still connected to the pipe is arranged in the other portion 103b which extends into the machine room 102.

According to this, since the pipe connecting portion connecting the compressor 19 and the accumulator 21 is arranged on one vibration plate 103 together with the compressor 19 and the accumulator 21, vibration occurs in the compressor 19. Even if this is done, the pipe connection swings together with the compressor 19 and the accumulator 21 on the vibration plate 103, so that stress is not concentrated on the pipe connection and troubles such as cracks are eliminated.

As shown in FIGS. 1 and 2, when a four-way valve 22 is provided, the four-way valve 22 is fixed to the outer plate of the compressor 19 by using a support plate 24 or the like. ,
It is desirable that the four-way valve 22 be disposed together with the accumulator 21 on one vibration plate 103. By doing so, it is possible to prevent a crack from being formed in the pipe connection portion connected to the four-way valve 22, and to improve the reliability thereof.

Further, as described above, since one vibration plate 103 straddles the heat exchange chamber 101 and the machine chamber 102, the surface area is considerably large. Since it is possible to greatly suppress the deflection of the pipe connection portion, the stress applied to the U-shaped bent portion (for example, 105, 106, etc.) of these pipes can also be suppressed as designed, and excessive stress Will not start. This can further improve the reliability of the pipe connection.

Further, according to this embodiment, since the accumulator 21 is installed in the heat exchange chamber 101, the following effects can be obtained.

(1) During the cooling operation, the outdoor heat exchanger 9 functions as a condenser. In the above-described configuration, the air radiated from the condenser hits the outer surface of the accumulator 21, so that the accumulator 21 Since the refrigerant exchanges heat with the liquid refrigerant inside the refrigerant and returns to the compressor 19 in an overheated state, the enthalpy on the suction side increases due to an increase in the overheat area,
The capacity is improved, and the reliability of the compressor 19 is improved.

(2) During the heating operation, the outdoor heat exchanger 9 serves as an evaporator. In the above-described configuration, the air radiated from the evaporator is higher than the temperature of the outer surface of the accumulator 21. In addition, the enthalpy is increased by an amount corresponding to the heating of the liquid refrigerant in the accumulator 21 due to the heating by the air, the capacity is improved, and the reliability of the compressor 19 is improved as in the cooling operation.

Another embodiment will be described with reference to FIG.

The compressor 1 is placed on one vibration plate 103.
9. The mounting of the accumulator 21 together is the same as that described above, but according to another embodiment, the compressor 19 has the vibration plate 103 via the auxiliary vibration isolating rubber (auxiliary vibration isolating means) 105. Is placed on top. According to this,
Since the vibration itself of the compressor 19 is suppressed by the auxiliary vibration isolator 105, the reliability of the pipe connection can be further improved.

The present invention is not limited to the above-described embodiment, but can be variously modified without departing from the gist of the present invention. For example, it is clear that the vibration isolating means is not limited to the vibration isolating rubber, but may be a vibration isolating spring or the like.

[0030]

[0031]

[0032]

[0033]

According to the first aspect of the present invention, there is provided a partition plate for partitioning the heat exchange chamber and the machine room, and penetrates the partition plate and is fixed to the bottom plate of the air conditioner via vibration isolating means. 1
A vibrating plate is provided, and an accumulator connected to a pipe is disposed on one part of the vibrating plate extending into the heat exchange chamber, and a pipe connected to the other part extending into the machine chamber. Since the compressed compressor is arranged, the surface area of one vibrating plate is increased, and the entire run-out is suppressed. Therefore, the run-out of the pipe connection is reduced, and the reliability of the pipe connection is further improved.

[Brief description of the drawings]

FIG. 1 is a front view showing a main part of an outdoor unit according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the outdoor unit shown in FIG.

FIG. 3 is a perspective view showing a pair of support plates extracted from FIG. 1;

FIG. 4 is a front view showing a state where a fan motor is temporarily fixed to a support plate.

FIG. 5 is a side view of the support plate and the fan motor shown in FIG.

FIG. 6 is a front view showing another embodiment.

[Explanation of symbols]

 5 Outdoor unit 9 Heat exchanger 19 Compressor 21 Accumulator 22 Four-way valve 101 Heat exchange chamber 102 Machine room 103 Vibration plate 104 Vibration isolation means 105 Auxiliary vibration isolation means

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Tamura ▲ Yoshi ▼ Hisashi 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Inside Sanyo Electric Co., Ltd. (72) Inventor Hisashi Kogure 2 Keihanhondori, Moriguchi-shi, Osaka 5-5-5 Sanyo Electric Co., Ltd. (56) References JP-A-3-267637 (JP, A) JP-A-7-35376 (JP, A) (58) Fields studied (Int. Cl. ⁷ , DB name) F24F 5/00

Claims (1)

(57) [Claims] [Claim 1 further comprising a partition plate for partitioning the heat exchange chamber and a machine chamber, the partition plate through the one of the vibration plate fixed provided via the vibration isolating means on the bottom plate of the air conditioner, On this vibrating plate, an accumulator connected to a pipe is arranged on one part extending into the heat exchange chamber,
An air conditioner wherein a compressor connected by piping is arranged in the other part extending into the machine room.