JPS6365181A - Compressor - Google Patents

Abstract

PURPOSE:To improve the extent of cooling capacity, by locking a suction plate, molding a valve plate, a suction muffler and a suction pipe together, solidly, to an interval between a cylinder and a cylinder head with a bolt. CONSTITUTION:A suction plate 31 is made up of molding a suction port 31a to be interconnected to a compression space 23, a valve plate 31c provided with a discharge port 31b, a suction muffler 31d and a suction pipe 31e together solidly with heat insulating materials such as plastic or the like. A cylinder head 34, covering the discharge port 31b, is locked to a cylinder 29 by bolts via a suction lead 33 and the suction plate 31. Therefore, a temperature rise in refrigerant gas flowing in a combustion chamber from the shell inside is prevented, thus cooling capacity is improvable.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a compressor used in a refrigeration system, and particularly relates to parts constituting a compression mechanism.

2. Description of the Related Art In recent years, compressors have become widely used in refrigeration equipment, and in particular, higher efficiency compressors have greatly contributed to energy savings in refrigeration equipment.

An example of the conventional compressor mentioned above will be described below with reference to the drawings.

FIGS. 4 and 5 show an example of a conventional compressor. In FIGS. 4 and 5, 1 is a conventional compressor. Reference numeral 2 is a shell in the form of a closed container, and contains an electric motor section (not shown) for driving the compressing rock section 3 and the compressing machine section 3. Reference numeral 4 denotes a cylinder forming the compressing machine part 3 and forming a compression chamber 6. 6 is a metal valve plate, and 7 is a metal cylinder head, both of which are fixed to the cylinder 4 with a plurality of bolts 8. 9 is a piston that reciprocates in the compression chamber 5 within the cylinder 4. 1° is a hollow suction muffler, with suction through hole 10a on one side.
A suction pipe 10b is formed on the other side, and a suction hole 6af formed in the valve plate 6 is attached through the suction pipe 10b, so that the compression chamber 5 in the cylinder 4 and the inside of the cylinder 2 are communicated with each other. 11, the shell is filled with cold gas.

The operation of the compressor constructed as follows will be explained below.

First, as the piston 9 in the compression chamber 6 moves toward the bottom dead center, the pressure in the compression chamber 5 drops, and at the same time, the refrigerant gas 11 in the VC shell 2 flows through the suction through hole 10a, the suction muffler 10. It passes through the suction pipe 10b and the suction hole 6a of the valve plate 6 and flows into the compression chamber 5.

Problems that Kohaku is trying to solve However, in the above-mentioned aquatic system, when the front R2 piston 9 is located at the top dead center of the compression chamber 5, the refrigerant gas 11 has the highest pressure and temperature, and the piston reaches the top dead center. Nearby parts have the highest temperature. At this time, since the valve plate 6 located on the piston top dead center side of the compression chamber 5 is made of metal, it has good heat conduction and reaches a high temperature ξ. 6, which reduces the cooling capacity and reduces the efficiency of the compressor.

The suction muffler 10 and the valve plate 6 are separate bodies, and the suction muffler 1o is connected by the suction pipe 10b being press-inserted into the suction hole 6a of the valve plate 6 by the suction pipe 1ob formed in the suction muffler 10. Since the suction muffler 10 is stopped, there is a problem in that it is difficult to firmly fix the suction muffler 10.

The present invention solves the above problems by using a suction muffler with a 10° suction T.
l 10 b and the valve plate 6 are integrally molded with a heat insulating material such as plastic to prevent the temperature of the refrigerant gas 11 flowing into the compression chamber 6 from rising.

To provide a compressor 1 capable of improving the efficiency of a compressor 1 and firmly fixing a suction muffler 10.

Means for Solving the Problems In order to solve the above problems, the compressor of the present invention has a cylinder forming a compression chamber, a piston that reciprocates within the compression chamber, and a valve plate and a suction insulating material made of a heat insulating material such as plastic. This engine is equipped with a suction plate that is formed by integrally molding a muffler and a suction pipe, and the suction plate is fixed with bolts between a cylinder and a 7-cylinder cylinder head.

Function The present invention has the above-mentioned configuration, so that the refrigerant gas is compressed into the compression chamber.
By molding the entire path that flows into the compression chamber with a heat insulating material such as plastic, the temperature of the refrigerant gas is prevented from rising, increasing the cooling capacity and improving the efficiency of the compressor. It will be firmly fixed.

EXAMPLE Hereinafter, a compressor according to an example of the present invention will be described with reference to the drawings. 1 to 3 show a compressor according to an embodiment of the present invention. Components that are the same as before are described using the same reference numerals.

In FIG. 3, 21 is a compressor, which is equipped with a compression chamber 23 inside a shell 22 (jH section 24 and front compression mechanism section 24).
The electric motor unit 28 includes a rotor 26 and a stator 27, which operate through a crankshaft 25. 11 is a refrigerant gas filling the shell 22. In FIGS. 1 and 2, 29 is a cylinder that forms the compression chamber 23, 30 is a piston that reciprocates in the compression chamber 23, 31 is a suction plate, and a suction hole 31a that communicates with the compression chamber 23; and a valve plate equipped with a discharge hole 31b) 3
1C, a suction muffler 31d, and a suction pipe 31e that communicates the suction hole 31a with the suction muffler 31d are integrally molded with a heat insulating material such as plastic. 32 is a suction through hole that connects the inside of the suction muffler 31d and the shell 22.
It communicates with the inside. 33 (k) is a suction lead that operates due to the pressure difference between the compression chamber 23 and the inside of the suction muffler 31d.

34 is a cylinder head that covers the discharge hole 31b;
One phase is fixed to the cylinder 29 by a plurality of bolts 36 with the suction lead 33 and the suction plate 31 interposed therebetween. Reference numeral 36 denotes a discharge lead which is operated by the pressure difference between the compression chamber 23 and the discharge chamber 37 formed by the cylinder head 34.

The operation of the compressor constructed as described above will be explained below with reference to FIGS. 1 to 3.

First, FIG. 3 shows the entire compressor 21. When the electric motor section 28 is energized, the heater 26 rotates and the crankshaft 25 simultaneously rotates, causing the piston 30':'! :
Lower to bottom dead center. As the piston 3° falls to the bottom dead center ((), the pressure in the compression chamber 23 decreases, and the refrigerant gas 11 in the shell 22 flows through the suction through hole 32 and the suction muffler 31d.
, the suction pipe 31e, and the suction hole 3 of the valve plate 31c.
1a, pushes down the suction lead 33 toward the compression chamber 23, and flows into the compression chamber 23. Next, the pressure of the refrigerant gas 11 flowing into the compression chamber 23 increases as the piston 30 moves to the top dead center, and the refrigerant gas 11 flows out into the discharge chamber 37 through the discharge hole 31b.

As described above, according to this embodiment, by integrally molding the path through which the refrigerant gas in the shell flows into the compression chamber from the inside of the shell with a heat insulating material such as plastic, the temperature of the refrigerant gas flowing into the compression chamber increases. Boulder 2: Improves machine efficiency and securely fixes the suction muffler.

Effects of the Invention As described above, the suction pump is made up of a cylinder that forms a compression chamber, a piston that reciprocates in the compression chamber, a valve plate, a suction muffler, and a suction pipe that are integrally molded using a heat insulating material such as plastic. and a cylinder head, and by fixing the suction plate between the cylinder and the cylinder head with bolts, the temperature rise of the refrigerant gas flowing into the compression chamber from inside the shell is stopped.1. Imaka? t
In addition to improving compressor efficiency by increasing power, the suction muffler can be firmly fixed.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a main part of a compressor according to an embodiment of the present invention, FIG. The figures are the same (cross-sectional view of a conventional compressor), and FIG. 5 is an enlarged sectional view of the main parts of the conventional compressor. 21...--Compressor, 23... Compression chamber, 29...
・Cylinder, 30... Piston, 31... Suction plate, 31c... Valve plate, 31d...
Suction muffler, 31e...Suction pipe, 34...So IJ 7 head, 35...Bolt. Name of agent: Patent attorney Toshio Nakao and 1 other person23
- Compression chamber 31cm Valve plate 2?
- Cylinder 31a - Oxidized muffler 30 - Stomach 31e - Cough supply 31 - Suction plate
34- Cylinder head No. 1 Fig. 2 35-" Bolt Fig. 3 21-.71 Reduction 7 aircraft Fig. 4 Fig. 5

Claims (1)

[Claims] It consists of a cylinder forming a compression chamber, a piston that reciprocates within the compression chamber, a suction plate made of a heat insulating material such as plastic, and a valve plate, a suction muffler, and a suction pipe integrally molded, and a cylinder head. A compressor characterized in that a plate is fixed between the cylinder and the cylinder head with bolts.