JPH11304305A - Receiver drier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve a higher filtering function of a receiver drier for storing a refrigerant of a car air conditioner. SOLUTION: A receiver drier stores a refrigerant to be fed into a cylindrical body 100. A filter unit 200 has a pair of cup-shaped filters 220 and 240 arranged facing each other and is filled with a desiccant 230. The filters 220 and 240 are fitted into the cup-shaped reinforcing members 210 and 250 and the reinforcing members 210 and 250 are positioned and fixed by protrusions 104 and 102 formed inside the body 100.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receiver dryer provided in a refrigeration cycle for storing a liquid-phase refrigerant.

[0002]

2. Description of the Related Art FIG.
It is sectional drawing of the conventional receiver dryer disclosed by No. 45 publication. The receiver dryer generally designated by reference numeral 1 has a bottomed cylindrical main body 10 whose upper part is open.
The main body is manufactured by extruding an aluminum alloy, for example.
Is opened. Further, a bolt hole 15 for mounting the receiver dryer 1 is provided at the center of the bottom portion 12. An inwardly protruding portion 16 is formed at the center of the cylindrical main body 10 by rolling or the like. Since the main body 10 is made of an aluminum alloy or the like, the protruding portion 16 can be easily processed.

[0003] A disc-shaped lower filter member 40 is mounted on the protruding portion 16 of the main body 10. Below the lower filter member 40, a liquid-phase refrigerant chamber 2 containing a liquid-phase refrigerant 28 is placed.
4 is defined. The lower filter member 40 mounted on the protrusion 16 may be a metal plate having a number of small holes called, for example, a punching metal. On the upper part of the lower filter member 40, a holding member 4 made of nonwoven fabric or the like is provided.
2 is filled with a desiccant 22. An upper filter member 50 is placed above the drying chamber 20 filled with the desiccant 22 via a holding member 52 made of nonwoven fabric or the like. The upper filter member 50 is made of a punching metal or the like, like the lower filter member 40.

A head member 30 is inserted into an upper opening of the cylindrical main body 10 and fixed by welding means 36 or the like. The head member 30 is a disk-shaped member made of an aluminum alloy or the like of the same material as the main body 10, and has an inlet 32
Having. A bolt hole 34 for mounting the receiver dryer 1 is provided at the center of the head member 30.

[0005] The refrigerant sent from the cooling system flows into the main body 10 from the inlet 32 of the receiver dryer 1. The flowing refrigerant passes through the opening of the upper filter 50, passes through the non-woven cloth 52, and is sent to the drying chamber 20. The drying chamber 20 is filled with a desiccant 22 having hygroscopicity. The water mixed in the refrigerant is adsorbed by the desiccant, and the refrigerant from which the water has been removed flows down into the liquid-phase refrigerant chamber 24 through the lower nonwoven cloth 42 and the lower filter member 40.

[0006]

Among air conditioners, a car air conditioner mounted on a vehicle is required to be small and light. The size and weight reduction of the receiver dryer
This is achieved by reducing the outer diameter of the cylindrical container serving as the main body of the receiver dryer. However, when the main body has a small diameter, the effective area of the filter for removing foreign substances in the refrigerant becomes small, which causes a shortage of the ability of the filter. The present invention provides a receiver dryer that solves these problems.

[0007]

A receiver dryer of the present invention is a refrigerant receiver dryer for an air conditioner having a cylindrical main body and a filter unit provided at an intermediate portion of the main body, wherein the filter unit comprises: A first filter fixed to the inside of the main body, a first reinforcing member holding the first filter, and a first filter and the first reinforcing member, the first filter being spaced from the first filter and the first reinforcing member in an axial direction of the main body. A second filter fixed to the inside of the main body, a second reinforcing member holding the second filter, and a desiccant filled between the first filter and the second filter. And the first
And the second reinforcing member is a cup-shaped member having an outer diameter smaller than the inner diameter of the main body, provided with slits in its side wall and bottom wall, and the openings of the cup-shaped member are mutually connected. They are arranged facing each other.

The first and second reinforcing members are hemispherical members, each having a net covering an opening formed by a rib, and provided with the openings of the hemispherical members facing each other. Is what is done.

Further, the first reinforcing member is a disk-shaped member having a net covering the opening formed by the rib, and the second reinforcing member has an outer diameter smaller than the inner diameter of the main body. Wherein the side wall and the bottom wall are provided with slits, and the opening of the cup-shaped member is disposed so as to face the first reinforcing member.

Further, the first reinforcing member is a disk-shaped member having a net covering the opening formed by the rib, and the second reinforcing member is a hemispherical member, formed by the rib. A net covering the opening, and the opening of the hemispherical member is disposed so as to face the first reinforcing member.

[0011]

FIG. 1 is a sectional view, a top view and a bottom view of a main part of a receiver dryer according to an embodiment of the present invention.
FIG. 2 is a component configuration diagram. The receiver dryer has a tubular main body 100, and a filter unit 200 is disposed at the center of the main body 100, and is positioned by inwardly protruding projections 102 and 104 formed on the main body 100.

The filter unit 200 has a first reinforcing member 210 provided at one end, and a first filter 220 fitted to the first reinforcing member. The first reinforcing member 210 is a cup-shaped member made of plastic or the like, has a flange portion 212 for attachment, and has slits 218 and 216 formed on the peripheral wall surface and the bottom surface.

The first filter 220 is made by molding a felt-like material into a cup shape.
It has a flange portion 222. The second reinforcing member 250 disposed opposite to the first reinforcing member 210 is the same as the first reinforcing member 210, has a flange portion 252, and has slits 256 and 258 formed therein. You.

The second filter 240 fitted on the second reinforcing member 250 is similar to the first filter 220 and has a flange 242. A desiccant 230 is filled in a space formed by the first reinforcing member 210 and the first filter 220 and the space formed by the second reinforcing member 250 and the second filter 240. The desiccant 230 has a function of absorbing and removing moisture in the refrigerant.

Since the receiver dryer of the present invention includes the filter unit having the above-described configuration, the effective area of the filter can be increased. Can be provided.

FIGS. 3 and 4 show another embodiment of the present invention. The filter unit 300 disposed inside the receiver dryer main body 100 includes a first reinforcing member 31.
0 and a first filter 320 fitted to the first reinforcing member 310.

The first reinforcing member 310 has a hemispherical shape made of, for example, plastic, and has a flange 312.
Is provided. The hemisphere is formed by ribs 316 and mesh 318
Is attached. The first filter 320 has a hemispherical shape fitted to the first reinforcing member 310 and includes a flange 322. The first filter 320 is made of a felt-like material.

The second reinforcing member 350 disposed opposite to the first reinforcing member 310 and the first filter 320 includes:
It has the same structure as the first reinforcing member, and has a flange 352,
A rib 356 and a net 358 are provided. Second filter 340
Is similar to the first filter 320 and has a flange 342.

The first reinforcing member 310 is positioned by the projection 104 inside the main body 100. Second reinforcing member 3
50 is positioned by a protrusion 102 on the inside of the main body 100. First filter 320 and second filter 340
Is filled with the desiccant 330

Since the filter unit 300 has the above configuration, a receiver dryer having a sufficient filter capability can be formed even with the small-diameter main body 100. The reinforcing members 310 and 350 are connected to the net 318,
Since the network 358 is provided, the networks 318 and 358 can be provided with a filter function, so that the filters 320 and 340 can be omitted.

FIGS. 5 and 6 show still another embodiment of the present invention. The filter unit 400 disposed inside the receiver dryer main body 100 has a first reinforcing member 410 and a first filter 420 laminated on the first reinforcing member 410. The first reinforcing member 410 is made of, for example, plastic and has a disk shape in which an opening is formed by a rib 416, and the opening is covered with a net 418. The first filter 420 is a disk-shaped filter made of a felt-like material.

The second reinforcing member 450 is made of a plastic cup and has a flange 452 and a slit 45.
6,458. The second filter 440 fitted to the second reinforcing member 450 is formed by forming a felt into a cup shape and has a flange 442. The first reinforcing member 410 and the first filter 420 are positioned by the protrusion 104 inside the main body 100.

Second reinforcing member 450 and second filter 4
40 is positioned by a protrusion 102 inward of the body 100. First filter 420 and second filter 44
The space between 0 is filled with the desiccant 430. Since the filter unit 400 has the above configuration, it is possible to configure a receiver dryer having a sufficient filter capability even in the case of the main body 100 having a small diameter.

FIGS. 7 and 8 show still another embodiment of the present invention. The filter unit 500 disposed inside the receiver dryer main body 100 includes a first reinforcing member 510.
And a filter 520 laminated on the first reinforcing member 510
Having. The first reinforcing member 510 is made of, for example, plastic and has a disk shape in which an opening is formed by a rib 516, and the opening is covered with a net 518. The first filter 520 is a disc-shaped filter made of a felt-like material.

The second reinforcing member 550 is a hemispherical plastic member, and has a flange 552 and a net 558 for covering the opening formed by the rib 556. Second reinforcement member 55
The second filter 540 that is fitted to the zero is made of a hemispherical felt and has a flange 542. First
The reinforcing member 510 and the first filter 520 are
Positioned by a protrusion 104 inward of zero.

The second reinforcing member 550 and the second filter 5
40 is positioned by the protrusion 102 inward of the main body 100. First filter 520 and second filter 5
The space between 40 is filled with desiccant 530. Since the filter unit 500 has the above-described configuration, a receiver dryer having a sufficient filter capability can be configured even with the small-diameter main body 100.

[0027]

As described above, the present invention relates to a filter receiver for a car air conditioner having a cylindrical main body having a relatively small diameter, and a filter unit disposed at an intermediate portion of the main body. The shape can increase the surface area of the filter and increase the filter capacity. Therefore, while reducing the size and weight of the receiver dryer, it is possible to ensure the ability to remove foreign substances in the refrigerant as large as a large receiver dryer.

[Brief description of the drawings]

FIG. 1 is a sectional view, a top view, and a bottom view showing a main part of an embodiment of a receiver dryer according to the present invention.

FIG. 2 is a component configuration diagram of the receiver dryer of FIG. 1;

FIG. 3 is a sectional view of a main part showing another embodiment of the receiver dryer of the present invention.

FIG. 4 is a component configuration diagram of the receiver dryer of FIG. 3;

FIG. 5 is a sectional view, a top view, and a bottom view of a main part showing another embodiment of the receiver dryer of the present invention.

FIG. 6 is a component configuration diagram of the receiver dryer of FIG. 5;

FIG. 7 is a sectional view, a top view, and a bottom view of a main part showing another embodiment of the receiver dryer of the present invention.

FIG. 8 is a component configuration diagram of the receiver dryer of FIG. 7;

FIG. 9 is a sectional view showing the overall configuration of a receiver dryer to which the present invention is applied.

[Explanation of symbols]

 Reference Signs List 100 Main body of receiver dryer 102, 104 Inward projection 200 Filter unit 210 First reinforcing member 220 First filter 230 Desiccant 240 Second filter 250 Second reinforcing member

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[Procedure amendment]

[Submission date] January 12, 1999

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 4

[Correction method] Change

[Correction contents]

Claims (4)

[Claims] 1. A refrigerant receiver / dryer for an air conditioner having a cylindrical main body and a filter unit provided at an intermediate portion of the main body, wherein the filter unit is a first filter fixed inside the main body. A first reinforcing member that holds the first filter, and a second reinforcing member that is disposed at a distance from the first filter and the first reinforcing member in the axial direction of the main body and fixed inside the main body. A second reinforcing member for holding the filter and the second filter; and a desiccant filled between the first filter and the second filter, wherein the first and second reinforcing members have an inner diameter of a main body. A cup-shaped member having a small outer diameter with respect to the cup-shaped member, provided with slits in a side wall and a bottom wall thereof, and provided with openings of the cup-shaped member facing each other. 2. A refrigerant dryer for an air conditioner, comprising a cylindrical main body and a filter unit provided at an intermediate portion of the main body, wherein the filter unit is a first filter fixed inside the main body. A first reinforcing member that holds the first filter, and a second reinforcing member that is disposed at a distance from the first filter and the first reinforcing member in the axial direction of the main body and fixed inside the main body. A second reinforcing member for holding the filter and the second filter; and a desiccant filled between the first filter and the second filter, wherein the first and second reinforcing members are hemispherical members. A receiver dryer comprising a net covering an opening formed by a rib, wherein the openings of the hemispherical members are disposed so as to face each other. 3. A refrigerant receiver / dryer for an air conditioner, comprising a cylindrical main body and a filter unit provided at an intermediate portion of the main body, wherein the filter unit is a first filter fixed inside the main body. A first reinforcing member that holds the first filter, and a second reinforcing member that is disposed at a distance from the first filter and the first reinforcing member in the axial direction of the main body and fixed inside the main body. A second reinforcing member for holding the filter and the second filter; and a desiccant filled between the first filter and the second filter, wherein the first reinforcing member is a disk-shaped member and includes a rib. And the second reinforcing member is a cup-shaped member having an outer diameter smaller than the inner diameter of the main body, and has slits formed on its side wall and bottom wall. With a cup-shaped part Receiver drier opening of is disposed in a manner facing the first reinforcing member. 4. A receiver dryer for a refrigerant for an air conditioner, comprising: a cylindrical main body; a pipe disposed on a central axis of the main body; and a filter unit provided at an intermediate portion of the main body. A first filter fixed to the inside of the main body, a first reinforcing member holding the first filter, and a first filter and the first reinforcing member spaced apart in the axial direction of the main body from the first filter and the first reinforcing member. A second filter fixed to the inside of the main body, a second reinforcing member holding the second filter, and a desiccant filled between the first filter and the second filter. The first reinforcing member is a disc-shaped member provided with a net covering the opening formed by the ribs, and the second reinforcing member is a hemispherical member, the net covering the opening formed by the ribs With a hemispherical member Receiver drier part are arranged in a manner facing the first reinforcing member.