JPH045976Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a refrigerant receiver used in a cooling, refrigeration, and air conditioning system, and particularly relates to a refrigerant receiver for an automobile cooling system (car cooler).

[Prior Art] Generally, a cooling/refrigeration air conditioner is constituted by equipment as shown in FIG. That is,
The refrigerant in the refrigerant receiver 1 is transferred to the evaporator 3 by the expansion valve 2.
It is ejected into the interior, where it evaporates under isothermal and equal pressure conditions, absorbs heat from the outside, and is then adiabatically compressed by the compressor 4.
The refrigerant is cooled and condensed in the condenser 5 and returned to the refrigerant receiver 1 .
A refrigerant receiver is a container in which liquefied refrigerant is temporarily retained, and since the required amount of refrigerant constantly changes depending on outside air conditions and operating conditions, it has a function to cope with load fluctuations, and also has a function to respond to load fluctuations. It has a built-in desiccant and strainer to remove moisture and dirt.

Conventionally, the refrigerant receiver 1 has been made of mesh or aluminum, but when moisture enters the refrigerant Freon, corrosion occurs due to hydrochloric acid and hydrofluoric acid generated by hydrolysis, and It had drawbacks such as being heavy.

The present inventors solved the above problem by proposing a refrigerant receiver made of synthetic resin (Japanese Patent Application No. 59-183264). As shown in FIG. 4, this synthetic resin refrigerant liquid receiver is formed by integrally joining a head part 7 and a lower bottom part 8, each of which is formed separately, with a bottle-shaped liquid receiver main body 6. and the refrigerant inlet pipe 9 and suction part 1
A refrigerant outlet pipe 10 having a diameter of 0' is integrally formed with the head section 7. Also, sight glass 11
is attached by adhesion or welding of synthetic resins, or by caulking the resin around the sight glass 11 using ultrasonic waves, etc., and a desiccant 12 for removing moisture from the refrigerant is placed inside to prevent wicking. 10' lower part 1
A strainer 13 for removing foreign matter such as dust is attached to 0'a.

The strainer 13 usually has a mesh of 100 mesh or more, has a suitable area, has chemical resistance, vibration resistance,
Since strength and strength are required, metal meshes such as stainless steel are used.

[Problems to be solved by the invention] However, the above-mentioned stainless steel strainer is not only expensive due to high material cost and laborious assembly process, but also unstable installation due to the installation position. It had drawbacks such as damage due to vibration of objects.

In view of the above circumstances, the purpose of the present invention is to provide a synthetic resin refrigerant receiver that can be easily and stably installed without using expensive materials such as stainless steel, and has a strainer part that is resistant to vibrations. shall be.

[Means for Solving the Problems] The present invention has been made to achieve the above object, and its gist is that the invention has a refrigerant inlet pipe and a suction part whose lower end opening opens near the inner bottom of the liquid receiver. In a synthetic resin refrigerant receiver for a cooling, refrigeration, and air conditioner, a refrigerant outlet pipe is provided integrally at the top of the head of a bottle-shaped receiver body formed by integrally joining a head and a bottom. , a notch is formed in the inner bottom of the liquid receiver body, extending radially outward leaving a part in the center thereof into which the lower end of the suction part can be inserted and fitted, and in the free end corner located in the center. The lower end of the refrigerant outlet pipe suction part is fitted into the center of the radial rib, and an elastic toric body is placed in the notch, and the toric body and the rib The refrigerant liquid receiver made of synthetic resin has an annular mesh body disposed on the upper surface thereof, the inner peripheral edge and the outer peripheral edge of which are liquid-tight with respect to the outer periphery of the suction part and the inner periphery of the bottom part, respectively.

[Specific structure and operation of the invention] Figures 1a, b and 2 are a longitudinal sectional view, a partially enlarged part, and a cross sectional view showing an embodiment of a synthetic resin refrigerant receiver according to the invention. , the same parts as in FIG. 4 are given the same reference numerals and their explanations will be omitted.

Reference numeral 14 in the figure denotes a predetermined portion which is radially integrally molded on the inner bottom portion of the bottom portion 8 of the liquid receiver main body, leaving a portion in the center where the lower end 10′a of the solvent outlet pipe suction portion is fitted. Multiple ribs in height. Of the lower end 10'a of the suction part, the rib 14...
Below a position approximately at the same height as the upper edge 14a, a step portion 10'c is formed as a narrow diameter portion 10'b having a slightly smaller diameter. In addition, the rib 14
A notch 14b is provided at the corner of the free end opposite to the stepped portion 10'c of the suction part, and the notch 14b and the outer periphery of the narrow diameter part 10'b of the suction pipe are An annular body 15 whose upper surface 15a has higher elasticity than the upper edge 14a of the rib is fitted between the rib upper edge 14a and the rib upper edge 14a. Further, a narrow annular stepped portion 8a is formed at a height of the upper edge 14a of the rib on the inner peripheral surface of the bottom portion 8, surrounding the inner periphery. These torus 1
5, the upper edge 14a of the rib 14, and the upper surface of the narrow annular stepped portion 8a, an inner peripheral edge 16a is formed.
is sandwiched between the upper surface 15a of the toric body and the stepped portion 10'c, and the outer peripheral edge 16b is fixed to the narrow annular stepped portion 8a by gluing or welding. is formed.

Since the synthetic resin refrigerant receiver of the present invention has the above structure, the rib notch 14 of the bottom portion 8
After fitting the elastic toric body 15 to b, placing the resin annular net body 16 on the upper surface 15a and the rib upper edge 14a, and gluing or welding it to the bottom inner peripheral stepped portion 8a,
By inserting the narrow diameter part 10'b of the suction part into the annular body 16, and by joining and integrating the bottom part 8 and head part 7, it is possible to reduce the number of assembly steps and to reduce costs by using resin for the net. Furthermore, since the inner peripheral edge 16a and the outer peripheral edge 16b of the net body are fixed, and the middle part is supported and fixed to the rib upper edge 14a,
The contents will not be damaged by vibration etc.

Further, the refrigerant introduced from the refrigerant inlet pipe 9 passes through the refrigerant port through the mesh whose inner peripheral edge 16a and outer peripheral edge 16b are liquid-tightly fixed to the outer periphery of the suction part 10' and the inner periphery of the bottom part 8, respectively. Since the solvent is guided to the suction part 10' of the outlet pipe 10, the short pass of the solvent is prevented.
A strainer section 17 that can completely remove dust and the like is obtained.

Further, during assembly, the toric body 15 and the annular mesh body peripheral edge 16a may be integrated and then attached to the bottom portion 8. Further, it is preferable to use the same resin as the material of the liquid receiver main body 6 or a resin having a similar melting point to enable welding, but it is particularly advantageous to use a polyamide resin in terms of molding and assembly. Furthermore, since various adhesives have been developed recently, a metal net can be used as needed.

[Effects] As described above, the synthetic resin solvent receiver according to the present invention requires less assembly time and can be obtained at low cost.Moreover, the strainer part is fixedly supported at the middle part by radial ribs, and the inner part is fixedly supported by the radial ribs. The periphery and the outer periphery each have a net that is liquid-tightly attached to the outer periphery of the suction part and the inner periphery of the bottom part, so that short passes of the solvent are prevented, foreign substances such as dust are completely removed, and the contents are prevented from vibrating. This is an excellent product as it has a strainer part that will not be damaged by straining.

[Brief explanation of the drawing]

Figures 1a, b and 2 show an embodiment of the synthetic resin refrigerant receiver of the present invention.
is a longitudinal cross-sectional view taken along the line I-I in Fig. 2, Fig. 1b is an enlarged view of part A in Fig. 1a, and Fig. 2 is a partially cutaway sectional view taken along the - line in Fig. 1a. The cutaway diagram, FIG. 3, is a diagram showing an example of a cooling system, and FIG. 4 is a longitudinal cross-sectional view of a conventional synthetic resin refrigerant receiver. 6...Liquid receiver body, 7...Head part, 8...Bottom part, 8a...Step part, 9...Refrigerant inlet pipe, 1
0... Refrigerant outlet pipe, 10'... Suction part, 10'a...
... Lower end of suction part, 10'b... Narrow diameter part, 10'c...
Stepped portion, 14...Rib, 14a...Rib upper edge, 14
b... Notch, 15... Toric body, 15a... Upper surface, 16... Net body, 16a... Inner peripheral edge, 16b...
...Outer rim.

Claims (1)

[Scope of utility model registration request] A bottle-shaped liquid receiver main body formed by integrally joining a head part 7 and a bottom part 8 with a refrigerant inlet pipe 9 and a refrigerant outlet pipe 10 having a suction part 10' whose lower end opening opens near the inner bottom of the liquid receiver. In the synthetic resin refrigerant liquid receiver of the cooling refrigeration and air conditioner which is provided integrally with the upper part of the head part 7 of No. 6, the lower end of the suction part 10' is located at the center of the inner bottom of the liquid receiver main body. A rib 14 is provided at a free end corner that extends radially outward leaving a portion that can be inserted and fitted, and has a notch 14b located at the center,
The lower end of the refrigerant outlet pipe suction part 10' is fitted into the center of the radial rib 14, and the notch 1
4b is placed with an elastic toric body 15, and the upper surfaces of the toric body 15 and the ribs 14 have an inner peripheral edge and an outer peripheral edge that are liquid-tight with respect to the outer circumference of the suction part and the inner circumference of the bottom part, respectively. A refrigerant liquid receiver made of synthetic resin, characterized in that an annular mesh body 16 is disposed therein.