JPH11304304A - 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 stores a refrigerant to be fed into a cylindrical body 100. A pipe 110 is arranged at the center of the body 100 to be a path of the refrigerant. 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 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. 9 is a sectional view of a receiver dryer to which the present invention is applied, which is of the same type as the receiver dryer described in Japanese Patent Application Laid-Open No. 6-249550. Receiver drier indicated as a whole by reference number 1 comprises a main body 10 is a cylindrical tank, with a header 20 which is welded by the welded portion W ₁ to the opening of the main body 10. Two through holes are formed in the upper surface of the header. The hole 22 is a coolant inlet, and the central hole 24 forms a coolant outlet. Hole 24
Forms a boss 26, into which a pipe 30 is inserted.

In the middle of the pipe 30, two disc-shaped filters and their support members 32 and 34 are mounted. The space formed by the two filters is filled with the desiccant 40. The refrigerant flowing from the inlet 22 is
Moisture is removed by the desiccant 40, stays at the lower part of the main body 10, and flows from the through hole (not shown) formed in the receiving member 36 supporting the pipe 30 to the outlet 24 through the pipe 30.

[0004]

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.

[0005]

The receiver dryer of the present invention has a cylindrical main body, a pipe disposed on the center axis of the main body, and a filter unit provided at an intermediate portion of the main body. The filter unit includes a first filter fixed to the inside of the main body, a first reinforcing member for holding the first filter, a first filter, and a first filter. A second member fixed to the inside of the main body, having a through hole that is disposed at a distance from the reinforcing member in the axial direction of the main body, has a through hole through which the pipe passes, and
And a second reinforcing member for holding 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 the main body. A cup-shaped member having an outer diameter smaller than the size, provided with slits in a side wall portion and a bottom wall portion, and provided with openings of the cup-shaped member facing each other.

[0006] The filter unit has a through hole through which the pipe penetrates, a first filter fixed inside the main body, a first reinforcing member holding the first filter, a first filter and a first filter. A second reinforcing member, which is disposed at a distance from the first reinforcing member in the axial direction of the main body, has a through hole through which the pipe passes, and is fixed inside the main body.
And a second reinforcing member for holding the second filter and a desiccant filled between the first filter and the second filter, wherein the first and second reinforcing members have a hemispherical shape. The member is provided with a net covering an opening formed by the rib, and the openings of the hemispherical member are disposed so as to face each other.

Further, the filter unit has a through hole through which the pipe penetrates, a first filter fixed inside the main body, a first reinforcing member holding the first filter, a first filter and a first filter. A second filter fixed to the inside of the main body and having a second filter fixed to the inside of the main body and having a through hole through which the pipe penetrates and is disposed at a distance from the first reinforcing member in the axial direction of the main body. And a desiccant filled between the first filter and the second filter, wherein the first reinforcing member is a disc-shaped member and has a mesh covering the opening formed by the ribs. The second reinforcing member is a cup-shaped member having an outer diameter smaller than the inner diameter of the main body, and a slit is provided on a side wall and a bottom wall thereof, and the opening of the cup-shaped member is provided. Is the first reinforcing member In which are arranged in a manner facing.

The filter unit has a through hole through which the pipe penetrates, a first filter fixed inside the main body, a first reinforcing member holding the first filter, a first filter and a first filter. A second reinforcing member, which is disposed at a distance from the first reinforcing member in the axial direction of the main body, has a through hole through which the pipe passes, and is fixed inside the main body.
And a second reinforcing member for holding the second 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. The second reinforcing member is a hemispherical member, and includes a net covering the opening formed by the rib, and the opening of the hemispherical member is the second member. The reinforcing member is disposed so as to face the reinforcing member.

[0009]

1A to 1C are a sectional view, a top view, and a bottom view, respectively, of a main part showing an embodiment of a receiver dryer according to the present invention, and FIG. is there.
FIG. 1A shows a half section. A pipe 110 serving as a refrigerant passage is provided upright on the axis of the tubular main body 100 of the receiver dryer. Then, a filter unit 200 is provided at the center of the main body 100 and is positioned by protrusions 102 and 104 formed on the main body 100 and protruding inward.

The filter unit 200 has a first reinforcing member 210 provided at one end and a first filter 220 fitted on the first reinforcing member. The first reinforcing member 210 is a cup-shaped member made of plastic or the like, has a mounting flange portion 212 and a hole 214 through which the pipe 110 penetrates, and has slits 218, 2 on the peripheral wall surface and the bottom surface.
16 are formed.

The first filter 220 is made by molding a felt-like material into a cup shape.
It has a flange portion 212 and a through hole 214 for the pipe 110. The second reinforcing member 250 disposed opposite to the first reinforcing member 210 is the same as the first reinforcing member 210, and has a flange portion 252, a pipe through hole 254, and a slit. 256, 258 are formed.

The second filter 240 fitted to the second reinforcing member 250 is the same as the first filter 220, and has a flange 242 and a pipe through-hole 244. The first reinforcing member 210 and the first filter 22
0, the second reinforcing member 250 and the second filter 240
Is filled with the desiccant 230. 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, and even if the main body 100 has a small diameter, sufficient filter capacity can be obtained. Can be provided.

FIGS. 3 and 4 show another embodiment of the present invention. Receiver dryer body 100 and pipe 1
10, the filter unit 300 is provided with
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.
And a through hole 314 for the pipe 110. The hemisphere is formed by a rib 316 and a net 318 is attached. First
The filter 320 has a hemispherical shape fitted to the first reinforcing member 310, and includes a flange 322 and a pipe through hole 324. 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 through hole 354, a rib 356, and a net 358 are provided. The second filter 340 is similar to the first filter 320, and has a flange 342 and a pipe through hole 344.

The first reinforcing member 310 is positioned by the protrusion 104 toward the inside of the main body 100, and the second reinforcing member 35.
0 is a projection 102 inward of the main body 100 and a pipe 110
Is positioned by the bulging portion 112 extending outward. The space between the first filter 320 and the second filter 340 is filled with the desiccant 330.

Since the filter unit 300 has the above-described configuration, a receiver dryer having a sufficient filter capability can be configured 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 between the receiver dryer main body 100 and the pipe 110 has a first reinforcing member 410 and a filter 420 laminated on the first reinforcing member 410. First reinforcing member 410
Is a disc-shaped member made of, for example, plastic and having an opening formed by a rib 416.
The opening with 4 is covered with a net 418. The first filter 420 is a disk-shaped member made of a felt-like material and has a pipe through hole 424.

The second reinforcing member 450 is a cup-shaped plastic member and has a flange 452, a pipe through-hole 454, and slits 456 and 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 and a pipe through hole 444. The first reinforcing member 410 and the first filter 420 are provided with the protrusion 1
04.

Second reinforcing member 450 and second filter 4
Reference numeral 40 denotes a protrusion 102 inward of the main body 100 and the pipe 11.
It is positioned by the bulging portion 112 outside the zero. First
The space between the filter 420 and the second filter 440 is filled with the desiccant 430. This filter unit 40
Since 0 has the above-described configuration, it is possible to configure a receiver dryer having a sufficient filtering ability 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 between the receiver dryer main body 100 and the pipe 110 has a first reinforcing member 510 and a filter 520 laminated on the first reinforcing member 510. 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. The opening having a pipe through hole 514 is covered with a net 518. The first filter 520 is a disk-shaped member made of a felt-like material and has a pipe through-hole 524.

The second reinforcing member 550 is a plastic cup-shaped member and includes a flange 552, a pipe through hole 554, a rib 556, and a net 558. The second filter 540 fitted to the second reinforcing member 550 is formed by forming a felt into a cup shape, and has a flange 542 and a pipe through hole 544. The first reinforcing member 510 and the first filter 520 are provided with the protrusion 10
4 position.

Second reinforcing member 550 and 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.

[0025]

As described above, the present invention relates to a refrigerant air-conditioner receiver dryer having a structure in which a pipe is disposed on an axis of a cylindrical main body having a relatively small diameter. The shape of the filter unit disposed in the intermediate portion can increase the surface area of the filter. Therefore, while reducing the size and weight of the receiver dryer, it is possible to secure the ability to remove foreign substances and moisture 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 110 Pipe 200 Filter unit 210 First reinforcing member 220 First filter 230 Desiccant 240 Second filter 250 Second reinforcing member

Claims (4)

[Claims] 1. 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. Has a through hole through which the pipe penetrates, and 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. A second filter and a second filter fixed to the inside of the main body, the second filter and the second filter being arranged at a distance from each other in the axial direction of the main body,
A second reinforcing member for holding the filter, and a desiccant filled between the first filter and the second filter, wherein the first and second reinforcing members are small with respect to the inner diameter of the main body. A receiver dryer having a cup-shaped member having an outer diameter, wherein slits are provided in a side wall and a bottom wall thereof, and openings of the cup-shaped member are arranged to face each other. 2. 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. Has a through hole through which the pipe penetrates, and 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. A second filter and a second filter fixed to the inside of the main body, the second filter and the second filter being arranged at a distance from each other in the axial direction of the main body,
A second reinforcing member for holding the 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 including 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 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. Has a through hole through which the pipe penetrates, and 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. A second filter and a second filter fixed to the inside of the main body, the second filter and the second filter being arranged at a distance from each other in the axial direction of the main body,
A second reinforcing member for holding the filter, and a desiccant filled between the first filter and the second filter, wherein the first reinforcing member is a disc-shaped member and is formed by a rib. The second reinforcing member is a cup-shaped member having an outer diameter smaller than the inner diameter of the main body, and the second reinforcing member is provided with slits in its side wall and bottom wall, A receiver dryer in which an opening of the member is disposed so as to face 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, the filter dryer comprising: Has a through hole through which the pipe penetrates, and 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. A second filter and a second filter fixed to the inside of the main body, the second filter and the second filter being arranged at a distance from each other in the axial direction of the main body,
A second reinforcing member for holding the filter, and a desiccant filled between the first filter and the second filter, wherein the first reinforcing member is a disc-shaped member and is formed by a rib. A second reinforcing member is a hemispherical member, and the second reinforcing member is a hemispherical member. The second reinforcing member is provided with a net covering the opening formed by the rib. Receiver dryers that are arranged facing each other.