JPS61218784A - Refrigeration cycle apparatus - Google Patents

Abstract

PURPOSE:To try to improve dumping effect on vibration and reduce noise by covering, via a heat insulating material, the outer peripheries of vibrating members such as a compressor casing, an exhaust pipe and the like with a dual-layer vibration-dumping member consisting of a shock absorbing material and a non-elastic body laminated outside said shock absorbing material. CONSTITUTION:The adhesive parts 11 are formed on the outer periphery of a compressor casing 10 and that of an exhaust pipe 14, and heat insulating material 12 is stuck to the outer periphery of the casing 10 and that of the pipe 14 through the adhesive parts 11. The outer periphery of the heat insulating material 12 is covered with a dual-layer vibration-dumping material 13 consisting of a shock absorbing material 13A of urethane or the like and a non-elastic body 13B having rigidity such as metal, hard plastic or the like and laminated outside the shock absorbing material 13A. Since the outer peripheries of the compressor casing 10 and the like are covered with the heat insulating material 12 and the vibration-dumping material 13 in a multi-layer form as the above, much more dumping effect on vibration and noise reduction can be expected as compared with the conventional case to cover the same with only the vibration-dumping material 13.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a refrigeration cycle device such as an air conditioner, and more particularly to a refrigeration cycle device with improved vibration damping method around a compressor.

[Technical background of the invention and its problems] Conventionally, this type of refrigeration cycle device has been constructed as shown in the plan view of the main part in FIG. There is. That is, the suction pipe 2 is connected to the compressor 1 via a suction cup 4 attached to the compressor 1, and the other end is connected to the four-way valve 5.

This four-way valve 5 is further connected to the discharge pipe 3.

Then, the outer peripheries of the suction piping 2 and the discharge piping 3 in the middle are coated with butyl rubber 6 for the required length, and
The outer peripheries of the compressor 1 and the suction and discharge pipes 2.3 are surrounded by a collar 7 made of rubber, felt, or the like.

Further, as shown in FIG. 5(A), an adhesive part 1B is formed on the outer periphery of the body of the compressor casing 1A of the compressor 1, and a cushioning material 8 such as urethane is adhered to this adhesive part 1B. The outer periphery of this cushioning material 8 is coated with an inelastic material 9 such as metal or hard plastic. In almost the same way, as shown in FIG. 5 (8), the discharge piping 3 of the compressor 1
An adhesive portion 1B of a required length is formed on the outer periphery of the cushioning member 1B, the above-mentioned II shock absorbing material 8 is adhered to this adhesive portion 1B, and the outer periphery of this cushioning material 8 is covered with the above-mentioned inelastic body 9.

Furthermore, as shown in FIG. 4, the suction piping 2 and the discharge piping 3 were arranged long in an attempt to damp the vibrations of the piping, etc., but a sufficient vibration damping effect could not be obtained. For this reason, in an air conditioner in which the capacity of the compressor 1 is variable by controlling the power frequency of the compressor 1 using an inverter (not shown), operation of the compressor 1 in a low frequency band may cause vibrations in the piping. was. Therefore, the operating frequency band of the compressor 1 has been narrowly limited.

Also, when the compressor 1 is operated, the compressor 1
Since the temperature of the discharge pipe 3 rises to a considerably high temperature, there is a risk that the buffer material 8, such as urethane, attached to the outer periphery of these 1 and 3 may be thermally damaged.

[Purpose of the invention]

The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide a refrigeration cycle device that has a simple configuration, improves vibration damping performance, and achieves noise reduction and downsizing.

[Summary of the Invention] In order to achieve the above-mentioned object, the present invention covers the outer periphery of a vibrating member such as a compressor casing or a discharge pipe with a damping material via a heat insulating material.

(Embodiment of the Invention) Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the main parts of an embodiment of the present invention, with piping and the like omitted. An adhesive part 11 is formed on the outer periphery of a compressor casing 10 that houses a compressor main body (not shown). There is.

A heat insulating material 12 is attached to the outer periphery of the compressor casing 10 via this adhesive part 11. The outer periphery of this heat insulating material 12 is coated with a damping material 13 . The damping material 13 is formed in a 2WJ structure consisting of a cushioning material 13A such as urethane and a rigid inelastic body 13B such as metal or hard plastic laminated on the outside of the cushioning material 13A.

Furthermore, damping material 13 is also applied to the outer periphery of the discharge pipe 14 connected to the discharge side of the compressor main body (not shown).
is covered. That is, the adhesive part 11 is formed on the outer periphery of the discharge piping 14 in the middle of the required piping, and the heat insulating material 1 is formed on the outer periphery.
2 is coated, and then the damping material 13 is coated.

In addition, in FIG. 1, the reference numeral 15 is a suction cup.

According to this embodiment, as shown in FIG.
can withstand use, and the maximum temperature of the conventional example is 11, for example.
It has a thermal margin of about 30' CI degrees compared to about 0 to 130' Celsius.

° In other words, regarding high-temperature members such as the compressor casing 1o and the discharge piping 14 that rise to a high temperature during operation of the compressor, the outer peripheries of these 1o and 14 and the damping material 13
Since the insulation material 12 is interposed between the vibration damping material 1 and
3 is protected by a heat insulating material 12 to prevent damage due to high temperatures. Therefore, even at such high temperatures, the soundness of the damping material 13 is maintained, a damping effect is achieved, and noise accompanying vibration can be reduced.

As a result, the compressor casing 10 and the discharge piping 14
This makes it possible to operate the compressor at a high output such that the temperature of the compressor rises above that of the conventional example, and it is possible to expand the operating frequency band of a refrigeration cycle device such as an air conditioner having an inverter.

Furthermore, since the outer peripheries of the compressor casing 10 and discharge piping 14 are coated multiple times with the damping material 13 and with the heat insulating material 12, the conventional example of covering the outer peripheries of these 10.14 with only the damping material is not possible. Compared to this, it is possible to improve the vibration damping performance and further reduce noise.

As a result, the length of piping such as the discharge piping 14 can be reduced, and the piping space can be reduced.
(see FIG. 4) can be omitted, saving installation space.

Although the outdoor unit of the air conditioner 8]a has been described in this embodiment, the present invention is not limited to this, and any refrigeration cycle used in a refrigerator or the like may be used.

(Effects of the Invention) As described above, the present invention covers the outer periphery of a vibrating member such as a compressor casing or a discharge pipe with a damping material via a heat insulating material.

Therefore, according to the present invention, even when vibrating members such as the compressor casing and discharge piping rise to high temperatures due to compressor operation, the damping material is protected by the heat insulating material, thereby preventing damage to the damping material. However, it is possible to achieve a vibration damping effect.

Further, since the outer periphery of the compressor casing etc. is coated multiple times with a heat insulating material and a vibration damping material, it is possible to improve the vibration damping effect compared to a conventional example in which the outer periphery is coated with only a damping material. As a result, excellent effects such as further reduction in noise caused by these vibrations can be achieved.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a main part of an embodiment of a refrigeration cycle device according to the present invention, FIG. 2 is a partial block diagram of a part of the discharge piping connected to the compressor casing shown in FIG. 1, and FIG. Diagram for explaining the effect of the embodiment shown in FIG. 1, No. 4
5(A) is a block diagram of the compressor shown in FIG. 4, and FIG. 5(B) is a partial block diagram of a part of the discharge piping shown in FIG. 4. . DESCRIPTION OF SYMBOLS 10... Compressor casing, 11... Adhesive part, 12... Heat insulating material, 13... Damping material, 13A...
Cushioning material, 13B... Inelastic body, 14... Discharge piping.

Claims (2)

[Claims] 1. A refrigeration cycle device characterized in that the outer periphery of vibrating members such as a compressor casing and discharge piping is coated with a damping material via a heat insulating material. 2. The refrigeration cycle device according to claim 1, wherein the vibration damping material has a two-layer structure consisting of a buffer material and an inelastic body laminated on the outside of the buffer material.