JPH11257803A - Receiver drier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the structure of a receiver drier incorporated in an air- conditioner for automobile compact, simpler, and lighter in weight. SOLUTION: A receiver drier 1 has a bottomed cylindrical main body 10 and a sealing member 40 which seals the opening of the main body 10. The main body 10 is manufactured by cold forging an aluminum alloy material and a boss section 20 which is protruded outward from the bottom face of the main body 10 is integrally formed with the main body 10. The sealing member 40 is also manufactured by cold forging the aluminum alloy material and has a disk-like sealing section 41 which is engaged with the opening of the main body 10 and an attaching section 42 which is extended outward from the sealing section 41. The attaching section 42 has an attaching surface 46 formed in parallel with the axial line of the main body 10 and an outlet port 50 for refrigerant.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receiver dryer for a car air conditioner used for a vehicle cooling system and temporarily storing a liquid-phase refrigerant.

[0002]

2. Description of the Related Art For example, Japanese Patent Application Laid-Open No. 9-4945 discloses a receiver dryer for a car air conditioner. The receiver dryer disclosed in the above publication has a bottomed cylindrical main body having an open top, a drying member provided in the main body, and a head member serving as a sealing member for sealing the opening of the main body. And
It has a coolant inlet provided on the head member and a coolant outlet provided on the bottom of the main body. In such a conventional receiver dryer, the refrigerant flows in from the head of the cylindrical receiver dryer and passes through the filter member and the drying member to remove moisture and contaminants, and is sent out from the bottom outlet. Therefore, the structure is simplified, and the flow of the refrigerant is smooth.

[0003]

However, in the conventional receiver dryer, since the head portion is formed by cutting the material, the material is wasted, and there is a problem in that resources are saved. SUMMARY OF THE INVENTION It is an object of the present invention to solve the conventional problems and to provide a receiver dryer having a resource-saving and light-weight configuration without material loss.

[0004]

That is, a receiver dryer according to the present invention has a bottomed cylindrical main body having an open end, and a sealing member for sealing the opening of the main body. A coolant inlet provided at the bottom and a coolant outlet provided at the sealing member are provided, and the main body and the sealing member are formed by cold forging. Further, the bottom of the main body has a boss smaller than the outer diameter of the main body, and the boss has a through hole serving as a coolant inlet and a bottomed screw hole juxtaposed to the through hole. It is characterized by.

The sealing member has a disk-shaped sealing portion that engages with the opening of the main body, and a mounting portion extending from the sealing portion along the axial direction of the main body. A mounting surface parallel to the axis of the main body is formed, and the mounting surface is provided with a refrigerant outlet communicating with the inside of the main body and a screw hole juxtaposed to the outlet. Furthermore, the mounting surface is formed near the central axis.

[0006] As described above, by forming the main body and the sealing member by cold forging, it is possible to prevent waste of the material and save resources of the material. Further, the boss at the bottom of the main body is smaller than the outer diameter of the main body, and is integrally formed at the same time when the main body is formed, so that the material can be saved and the weight can be reduced.

Further, the sealing member is formed from a material by cold forging, and the mounting portion is also integrally formed. The mounting surface may be machined, so that the structure is reduced in weight and the number of processing and assembly steps is reduced. be able to. Furthermore, since the mounting surface is formed near the center axis of the main body, the mounting structure of the receiver dryer can be made compact without projecting outside the main body.

[0008]

1 is a sectional view of a receiver dryer according to the present invention, FIG. 2 is a top view, FIG. 3 is a bottom view, and FIG. 4 is a view taken in the direction of arrow A in FIG. The receiver dryer generally denoted by reference numeral 1 has a bottomed cylindrical main body 10 having one end opened. The main body 10 is formed by, for example, cold forging an aluminum alloy material into an elongated cylindrical shape with a bottom. Since the aluminum alloy has good workability, for example, the boss portion 20 provided to extend outward from the bottom portion can also be formed integrally.

The boss portion 20 has side surfaces 22 and 24 formed of flat surfaces having a width smaller than the outer diameter of the main body 10, thereby saving material and reducing weight. The boss portion 20 is provided with a through hole 30 penetrating in the axial direction of the main body 10 and a screw hole 32 with a bottom. The through hole 30 is an inflow port into which the refrigerant of the car air conditioner flows, and is connected to a condenser by connecting a pipe or the like (not shown).

Inside the main body 10, a pair of filters 6 is provided.
A drying chamber is defined by 2 and 64, and the drying agent 70 is filled. On the upper surface of the upper filter 62, the first holding plate 6
0 is provided to support the filter 62. This holding plate 6
0 is made of, for example, a mesh-shaped metal plate. First
In order to position the holding plate 60 in the main body 10, notch processing is performed from the outer peripheral portion of the main body 10, and the first projection 12 protruding inside the main body 10 is formed. This projection 12
Are provided, for example, at three places on the circumference, and the first holding plate 6
0 is held in the main body 10. Instead of forming the projections 12 by notch processing, the outer peripheral portion may be subjected to rolling processing to form an annular portion projecting inward.

The lower filter 64 includes a second holding plate 66.
Is supported on the lower side. This second holding plate 66 is
It is positioned inside the main body 10 by the second protrusions 14 protruding inward. The second protrusions 14 are provided at three places on the circumference. Instead of forming this projection by notch processing, a groove that projects inward by rolling processing can also be used.

A sealing member 4 for sealing the open end of the main body 10
0 has a disc-shaped sealing portion 41 to be engaged with the opening of the main body 10 and a mounting portion 42 projecting outward from the sealing portion 41. Both side surfaces 42a and 42b of the mounting portion 42 are formed in a column shape smaller than the outer diameter of the sealing portion 41. The sealing member 40 is formed by cold forging an aluminum alloy or the like similar to the material of the main body 10 to form the material of the sealing member 40.

Next, the material is machined to form the engaging portion 41a with the opening end of the main body 10 and the mounting surfaces 44 and 46. Axis mounting surface 46 parallel to the main body 10 at this time is formed in the vicinity of the center line, for example, because they are processed into a surface that is displaced outwardly by the width dimension G ₁ with respect to the center line of the body 10, the receiver-drier The mounting structure does not protrude to the outside, so that a miniaturized configuration can be achieved.

On a mounting surface 46 parallel to the axis of the main body 10,
Through-hole 50 penetrating into body 10 and bottomed screw hole 5
2 are formed. The through hole 50 is formed by connecting two bottomed holes at a right angle. This through hole 50 is used as a coolant outlet. The sealing member 40 forms a welded portion AW on the main body 10 by arc welding and is fixed.

FIG. 5 shows that the receiver dryer 1 is sealed with a sealing member 4.
It is explanatory drawing which shows the structure attached to other apparatuses of a car air conditioner, such as a condenser, using the 0 attachment part 42, and omits and shows the main body bottom part. The mounting surface 46 of the mounting portion 42 abuts against a mating member such as the flange 100, and the lower portion of the receiver dryer 1 is fixed to another device by a bolt 110 screwed into the screw hole 52. The flange 100 is a member also serving as a pipe attachment member for sending the refrigerant connected to the refrigerant outlet 50 of the sealing member 40 to the next device of the car air conditioner such as an expansion valve.

Since the mounting flange 100 is accommodated in the outer diameter region of the main body 10 of the receiver dryer 1, a mounting space for the receiver dryer can be easily secured even in a car air conditioner having a small mounting space. .

[0017]

As described above, the receiver dryer of the present invention forms the bottomed cylindrical main body and the sealing member for sealing the opening of the main body by cold forging. Resources can be achieved. Moreover, since the boss provided on the outside of the bottom of the main body also has a simple shape with a small width, the boss can be integrally formed with the main body, so that material saving and weight reduction can be achieved.

Further, the sealing member for sealing the opening of the main body also has a disk-shaped sealing portion covering the opening of the main body, and a mounting portion projecting from the sealing portion in the axial direction of the main body. Is formed by cold forging to form a material with a minimum processing allowance, thereby improving the material yield and reducing the weight. Also, since the mounting surface provided on the sealing member can be formed near the center axis of the main body and can be machined,
A configuration in which the number of processing and assembly steps is reduced can be realized. Also,
The structure for mounting the receiver dryer does not need to protrude outward, and there is an advantage that the mounting space for the receiver dryer can be easily secured.

[Brief description of the drawings]

FIG. 1 is a sectional view of a receiver dryer of the present invention.

FIG. 2 is a top view of the receiver dryer of the present invention.

FIG. 3 is a bottom view of the receiver dryer of the present invention.

FIG. 4 is a view taken in the direction of arrow A in FIG. 1;

FIG. 5 is an explanatory view showing a mounting structure of a receiver dryer of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Receiver dryer 10 Main body 12, 14 Notch processing part protruded inward 20 Boss part 30 Inflow port 40 Sealing member 41 Sealing part 42 Mounting part 46 Mounting surface 50 Outflow 60 Upper holding plate 62 Upper filter 64 Lower filter 66 Lower part Presser plate

Claims (4)

[Claims] 1. A receiver dryer for temporarily storing a liquid-phase refrigerant, which is provided in a vehicle cooling system, and has a bottomed cylindrical main body having one end opened, and a seal for sealing an opening of the main body. It has a stop member, a coolant inlet provided at the bottom of the main body, and a coolant outlet provided at the sealing member, and the main body and the sealing member are formed by cold forging an aluminum alloy material. A receiver dryer. 2. The bottom of the main body has a boss smaller than the outer diameter of the main body. The boss has a through hole serving as a coolant inlet, and a bottomed screw hole juxtaposed to the through hole. The receiver dryer according to claim 1, further comprising: 3. The sealing member has a disk-shaped sealing portion engaged with the opening of the main body, and a mounting portion extending from the sealing portion along the axial direction of the main body. 2. A receiver dryer according to claim 1, wherein a mounting surface parallel to the axis of is formed, and the mounting surface includes a refrigerant outlet communicating with the inside of the main body and a screw hole juxtaposed to the outlet. 4. The receiver dryer according to claim 3, wherein the mounting surface is formed near the central axis.