EP1193455A1 - Receiver-Drier - Google Patents

Receiver-Drier Download PDF

Info

Publication number
EP1193455A1
EP1193455A1 EP01122367A EP01122367A EP1193455A1 EP 1193455 A1 EP1193455 A1 EP 1193455A1 EP 01122367 A EP01122367 A EP 01122367A EP 01122367 A EP01122367 A EP 01122367A EP 1193455 A1 EP1193455 A1 EP 1193455A1
Authority
EP
European Patent Office
Prior art keywords
receiver
drier
hole
pipe
cap members
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01122367A
Other languages
German (de)
French (fr)
Other versions
EP1193455B1 (en
Inventor
Takuji c/o Fujikoki Corporation Furuta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujikoki Corp
Original Assignee
Fujikoki Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujikoki Corp filed Critical Fujikoki Corp
Publication of EP1193455A1 publication Critical patent/EP1193455A1/en
Application granted granted Critical
Publication of EP1193455B1 publication Critical patent/EP1193455B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/003—Filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/006—Accumulators

Definitions

  • the present invention relates to a receiver-drier for storing the refrigerant used in an air conditioning device of a vehicle and the like.
  • the air conditioning device mounted on a vehicle and the like is equipped with a receiver-drier that stores the refrigerant compressed by a compressor and liquidized by a condenser, and removes the moisture within the refrigerant.
  • the receiver-drier is formed of a cylindrical body, a refrigerant entrance through which the refrigerant enters the body, and a refrigerant exit.
  • the entrance and the exit of the refrigerant are positioned in the opposite sides in the axial direction of the body, and a drying chamber filled with a drying agent is equipped between the entrance and the exit.
  • the receiver-drier body comprises a cylindrical shape with one end being opened, formed of aluminum alloy so as to reduce the weight of the member.
  • the aluminum alloy has advantageous plasticity and fluidity, so the cylindrical body and a pipe that penetrates through the center portion of the body can be formed together integrally by forging.
  • Japanese Laid-Open Patent Publication No. 5-305381 discloses a method for forming a double walled cylinder having one closed end by forging an aluminum alloy material.
  • the lid member is made of the same aluminum alloy material as the body, and the lid is fixed to the body by MIG welding means and the like.
  • the pipe, the plug and the like that are connected to the body are made of copper alloy material, so these members are joined to the body using for example a mechanical bonding means or a brazing means.
  • the present invention provides a receiver-drier applying an improved bonding means for fixing the pipe etc. onto the body.
  • the receiver-drier comprises as basic means a double wall cylinder body with a bottom and having a pipe member mounted to the center portion thereof, a pair of cap members penetrated by the pipe member and positioned inside said body, a drying agent filled to the space between the pair of cap members, and a lid member that covers the opening portion of said body.
  • the present receiver-drier further comprises a body made of aluminum alloy which is forged integrally with a bottom member including a hole that communicates to said pipe member, a pipe inserted to the hole formed to the bottom member of the body and joined thereto by in-furnace brazing, and a coil spring positioned between the lid member and one of the cap members.
  • the receiver-drier can be equipped with a body made of aluminum alloy which is forged integrally with a bottom member including a hole that communicates to the pipe member, a pipe inserted to a first hole formed to the bottom member of the body and bonded thereto by in-furnace brazing, a plug screwed onto a second hole either formed to the bottom member of the body or to the body, and a coil spring mounted between the lid member and one of the cap members.
  • the present receiver-drier can also include a body made of aluminum alloy which is forged integrally with a bottom member including a hole that communicates to the pipe member, a head having both a protrusion inserted to the hole formed to the bottom member of the body and a hole to which a protrusion formed to the bottom member of the body is inserted, and a bolt for fixing the head to the bottom portion of the body.
  • the present receiver-drier further comprises a groove formed by knurling or punching the outside of said body, the groove protruding inwardly to the body so as to position the cap member.
  • FIG. 1 is a cross-sectional view showing the first embodiment of the present invention
  • FIG. 2 is a plan view thereof.
  • the receiver-drier shown as a whole by reference number 100 comprises a body 110 formed by creating a cylindrical body with a bottom by forging an aluminum alloy material.
  • the bottom member 120 of the body 110 is equipped with a first passage hole 122 and a second passage hole 124 for the refrigerant.
  • One of the two passage holes for the refrigerant becomes the entrance hole of the refrigerant, and the other becomes the exit hole.
  • Pipes 140 and 142 made of copper alloy are respectively inserted to the two holes 122 and 124, and bonded thereto by in-furnace brazing.
  • a lid member 150 made of aluminum alloy is fit to the other end of the body 110 opposite the bottom member 120, which is fixed to position by TIG welding W 1 .
  • a pipe member 130 formed to the center portion of the body 110 is integrally formed when forging the body 110.
  • a pair of cap members 160 and 170 penetrated by the pipe member 130 are positioned opposing one another in the body.
  • the inner side of the cap members 160 and 170 are equipped with metallic mesh members 162 and 172, respectively, and the space defined by the body and the cap members is filled with a drying agent 180.
  • a groove 112 protruding inwardly is formed on the outer periphery of the body 110 by a knurling process or a punching process.
  • the groove 112 creates a protrusion 112a that protrudes inwardly to the body, which is used for positioning the first cap member 160 in the axial direction that is positioned at a determined distance from the lid member 150.
  • a coil spring 155 is inserted between the lid member 150 and the second cap member 170, constantly pressing the second cap member 170 toward the first cap member 160. According to this structure, the density of the drying agent 180 is maintained uniformly, and the moisture within the refrigerant can be absorbed and removed effectively.
  • the refrigerant entering the body travels through the pipe member 130 formed integrally to the center of the body 110, and exits through the open end 132 into the space formed between the lid member 150 and the second cap member 170.
  • the refrigerant passes through the second cap member 170 having gaps and the mesh member 172 into the drying agent 180, by which the moisture of the refrigerant is removed.
  • the refrigerant passes through the mesh member 162 and the first cap member 160 having gaps and is stored in the space formed between the first cap member 160 and the bottom member 120 of the body 110, before being sent out to other members of the air conditioning device through the second pipe 142.
  • the body 110 having two holes 122 and 124 formed to the bottom member 120 thereof and including a pipe member 130 integrally formed thereto is manufactured by forging, to which are assembled cap members 160, 170 and mesh members 162, 172. Then, the drying agent 180 is filled in the determined space, and the coil spring 155 is inserted thereto before fitting the lid member 150 to the body, which is welded by TIG welding W 1 .
  • pipes 140 and 142 are inserted to the assembled body, to which are performed in-furnace brazing so as to bond the pipes 140 and 142 to the holes 122 and 124 formed to the bottom member 120 of the body 110.
  • the receiver-drier is manufactured by a less number of manufacturing steps.
  • the whole body is heated up to approximately 600 °C within the furnace, but the heat resistance of the receiver-drier can be secured by using metallic material for forming the cap members and the mesh members.
  • FIG. 3 is a cross-sectional view showing the second embodiment of the present invention
  • FIG. 4 is a plan view thereof.
  • the receiver-drier shown as a whole by reference number 200 comprises a body 210 formed by brazing an aluminum alloy material into a cylindrical shape with a bottom.
  • a first passage hole 222 and a second passage hole 224 are formed to the bottom member 220 of the body 210.
  • One of the two passage holes for the refrigerant is used as the entrance hole of the refrigerant, and the other is used as the exit hole.
  • a pipe 240 and a plug 242 made of copper alloy are respectively inserted to the holes 222 and 224, and the pipe 240 and the plug 242 are welded to position by in-furnace brazing.
  • a lid member 250 made of aluminum alloy is fit to the opening of the body 210 opposite the bottom member 220, which is fixed to position by TIG welding W 1 .
  • the pipe member 230 formed to the center area of the body 210 is formed integrally with the body when forging the body 210.
  • a pair of cap members 260 and 270 penetrated by the pipe member 230 is positioned so as to oppose to one another inside the body 210.
  • Metallic mesh members 262 and 272 are respectively positioned inside the cap members 260 and 270, and the space formed by these members within the body is filled with a drying agent 280.
  • a groove 212 protruding inwardly is formed on the outer periphery of the body 210 by a knurling process or a punching process.
  • the groove 212 creates a protrusion 212a that protrudes inwardly to the body, which is used for positioning the first cap member 260 in the axial direction that is positioned at a determined distance from the lid member 250.
  • a coil spring 255 is inserted between the lid member 250 and the second cap member 270, constantly pressing the second cap member 270 toward the first cap member 260. According to this structure, the density of the drying agent 280 is maintained uniformly, and the moisture within the refrigerant can be absorbed and removed effectively.
  • the refrigerant entering the body travels through the pipe member 230 formed integrally to the center of the body 210, and exits through the open end 232 into the space formed between the lid member 250 and the second cap member 270.
  • the refrigerant passes through the second cap member 270 having gaps and the mesh member 272 into the drying agent 280, by which the moisture in the refrigerant is removed.
  • the refrigerant passes through the mesh member 262 and the first cap member 260 having gaps and is stored in the space between the first cap member 260 and the bottom member 220 of the body 210, before being sent out to other members of the air conditioning device through the hole 224 formed to the bottom member 220 of the body and through the hole 244 of the plug 242.
  • the body 210 having a hole 222 utilized as the first passage hole of the refrigerant formed to the bottom member 220 thereof and including a pipe member 230 integrally formed thereto is manufactured by forging, and thereafter, a side hole 224 utilized as the second passage hole of the refrigerant is formed by after-processing as the second hole. Then, the cap members 260, 270 and mesh members 262, 272 are assembled to the body, the drying agent 280 is filled into the determined space, and the coil spring 255 is inserted in position before fitting the lid member 250 to the body, which is fixed by TIG welding W 1 .
  • the pipe 240 and the plug 242 are inserted to the hole 222 and the hole 224 formed to the bottom member 220 of the assembled body, and the pipe 240 and the plug 242 is respectively fixed to the hole 222 and hole 224 on the bottom member 220 of the body 210 by in-furnace brazing.
  • the receiver-drier is manufactured by a less number of manufacturing steps.
  • the whole body is heated up to approximately 600 °C within the furnace, but the heat resistance of the receiver-drier can be secured by using metallic material to form the cap members and the mesh members.
  • the position of the second hole formed as a side hole 224 in the embodiment of FIG. 3 is not limited to the bottom member 220, but the second hole or side hole 224 can be formed on the body 210 close to the bottom member 220 by after-processing, as shown in the third embodiment of FIG. 5.
  • the plug 242 is inserted to the side hole 224 and fixed thereto by in-furnace brazing.
  • FIG. 6 is a cross-sectional view showing the fourth embodiment of the present invention
  • FIG. 7 is a plan view thereof.
  • the receiver-drier shown as a whole by reference number 300 comprises a body 310 formed by forging an aluminum alloy material into a cylinder-shaped body with a bottom.
  • the bottom member 320 of the body 310 is equipped with a first refrigerant passage hole 322 formed roughly to the center of the bottom member 320, and a second passage hole 324 formed to a protrusion 326 equipped to the bottom member 320.
  • One of the two passage holes for the refrigerant becomes the entrance for the refrigerant, and the other passage becomes the exit of the refrigerant.
  • a corresponding member of a head 340 is inserted to the two holes 322 and 324 and bonded thereto.
  • a lid member 350 made of aluminum alloy is fit to the other end of the body 310 opposite the bottom portion 320, which is fixed to position by TIG welding W 1 .
  • a pipe member 330 formed to the center portion of the body 310 is integrally formed when forging the body 310.
  • a pair of cap members 360 and 370 penetrated by the pipe member 330 are positioned so as to oppose to one another in the body.
  • the inner side of the cap members 360 and 370 are equipped with sponge-like filter members 362 and 372, respectively, and the space defined by the body and the cap members is filled with a drying agent 380.
  • a groove 312 protruding inwardly is formed on the outer periphery of the body 310 by a knurling process or a punching process.
  • the groove 312 creates a protrusion 312a that protrudes inwardly to the body, which is used for positioning the first cap member 360 in the axial direction that is positioned at a determined distance from the lid member 350.
  • the second cap member 370 is also positioned by a groove 314 formed similarly by a knurling process or a punching process .
  • a groove 314 formed similarly by a knurling process or a punching process .
  • the head 340 comprises a protrusion 342 that fits into the first hole 322.
  • the bottom member 320 of the body 310 comprises a protrusion 326 formed integrally with the body 310 and fits to the hole 344 of the head 340.
  • Seal members 343 and 327 are fit respectively to each protrusion 342 and 326, and then the protrusions are respectively inserted to the corresponding holes 322 and 344.
  • a bolt 345 is used to secure the head 340 to the body 310.
  • the refrigerant entering the body through the first hole 322 travels through the pipe member 330 formed integrally to the center of the body 310, and exits through the open end 332 into the space formed between the lid member 350 and the second cap member 370.
  • the refrigerant passes through the second cap member 370 having gaps and the filter member 372 into the drying agent 380, by which the moisture in the refrigerant is removed.
  • the refrigerant passes through the filter member 362 and the first cap member 360 having gaps and is stored in the space between the first cap member 360 and the bottom member 320 of the body 310, before being sent out to other members of the air conditioning device through the second hole 342.
  • the body 310 having the hole 322 and the protrusion 326 including the hole 324 formed to the bottom member 320 thereof and including the pipe member 330 integrally formed thereto is manufactured by forging. Then, cap members 360, 370 and filter members 362, 372 are assembled to the body, the drying agent 180 is filled to the determined space, and the lid member 150 is fit to the body, which is fixed by TIG welding W 1 .
  • a head 340 is fit to the assembled body, which is fixed by a bolt 345.
  • the receiver-drier can be manufactured by a smaller number of steps .
  • the first passage hole 322 is formed to the substantial center of the bottom member 320 of the body, and the second passage hole 324 is formed to the protrusion 326 equipped to the bottom member 320 of the body.
  • the position to which the protrusion 326 is equipped could be varied from the embodiment shown in FIG. 6. That is, as explained in the fifth embodiment shown in FIG. 8, the protrusion 326 formed to fit into the hole 344 of the plug 340 is integrally formed to the body 310 at the substantial center of the bottom member 320, and the first passage hole 322 is formed to the protrusion 326.
  • the second passage hole 324 to which a protrusion 342 formed to the plug 340 is inserted is formed to the bottom member 320 of the body.
  • the receiver-drier according to the present invention integrally forms a double wall cylinder body by forging an aluminum alloy material, which assembles necessary members in its structure. Therefore, the present receiver drier can be manufactured by a smaller number of processes or assembly steps.
  • the pipe or plug member made of copper alloy is joined to the body by in-furnace brazing, the required strength of the body can be secured by a simple structure.

Abstract

The receiver-drier shown as a whole by reference (100) comprises a body (110) formed by forging an aluminium alloy material into a cylinder body with a bottom. A first passage hole (122) and a second passage hole (124) for the refrigerant are formed to the bottom portion (120) of the body (110). One of the two refrigerant passage holes is used as the refrigerant entrance, and the other is used as the refrigerant exit. Copper alloy pipes (140,142) are respectively inserted to the two holes (122,124), which are bonded thereto by in-furnace brazing. The opening of the body (110) opposite the bottom member (120) has an aluminium alloy lid member (150) fit thereto. The pipe member (130) formed to the center area of the body (110) is integrally formed with the body (110) when forging and creating the body.

Description

The present invention relates to a receiver-drier for storing the refrigerant used in an air conditioning device of a vehicle and the like.
The air conditioning device mounted on a vehicle and the like is equipped with a receiver-drier that stores the refrigerant compressed by a compressor and liquidized by a condenser, and removes the moisture within the refrigerant.
The receiver-drier is formed of a cylindrical body, a refrigerant entrance through which the refrigerant enters the body, and a refrigerant exit.
The entrance and the exit of the refrigerant are positioned in the opposite sides in the axial direction of the body, and a drying chamber filled with a drying agent is equipped between the entrance and the exit.
The receiver-drier body comprises a cylindrical shape with one end being opened, formed of aluminum alloy so as to reduce the weight of the member.
The aluminum alloy has advantageous plasticity and fluidity, so the cylindrical body and a pipe that penetrates through the center portion of the body can be formed together integrally by forging.
For example, Japanese Laid-Open Patent Publication No. 5-305381 discloses a method for forming a double walled cylinder having one closed end by forging an aluminum alloy material.
SUMMARY OF THE INVENTION
In order to form a receiver-drier having as its body a double wall cylinder formed according to the above-mentioned prior-art method, it is necessary to cover the open end with a lid member, and to fix a pipe and the like to the opening portion that communicates to the entrance and the exit of the refrigerant.
The lid member is made of the same aluminum alloy material as the body, and the lid is fixed to the body by MIG welding means and the like.
The pipe, the plug and the like that are connected to the body are made of copper alloy material, so these members are joined to the body using for example a mechanical bonding means or a brazing means.
The present invention provides a receiver-drier applying an improved bonding means for fixing the pipe etc. onto the body.
The receiver-drier according to the present invention comprises as basic means a double wall cylinder body with a bottom and having a pipe member mounted to the center portion thereof, a pair of cap members penetrated by the pipe member and positioned inside said body, a drying agent filled to the space between the pair of cap members, and a lid member that covers the opening portion of said body. The present receiver-drier further comprises a body made of aluminum alloy which is forged integrally with a bottom member including a hole that communicates to said pipe member, a pipe inserted to the hole formed to the bottom member of the body and joined thereto by in-furnace brazing, and a coil spring positioned between the lid member and one of the cap members.
According to another aspect of the invention, the receiver-drier can be equipped with a body made of aluminum alloy which is forged integrally with a bottom member including a hole that communicates to the pipe member, a pipe inserted to a first hole formed to the bottom member of the body and bonded thereto by in-furnace brazing, a plug screwed onto a second hole either formed to the bottom member of the body or to the body, and a coil spring mounted between the lid member and one of the cap members.
The present receiver-drier can also include a body made of aluminum alloy which is forged integrally with a bottom member including a hole that communicates to the pipe member, a head having both a protrusion inserted to the hole formed to the bottom member of the body and a hole to which a protrusion formed to the bottom member of the body is inserted, and a bolt for fixing the head to the bottom portion of the body.
According to another aspect of the invention, the present receiver-drier further comprises a groove formed by knurling or punching the outside of said body, the groove protruding inwardly to the body so as to position the cap member.
BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a cross-sectional view showing the first embodiment of the present invention;
  • FIG. 2 is a plan view of FIG. 1;
  • FIG. 3 is a cross-sectional view showing the second embodiment of the present invention;
  • FIG. 4 is a plan view of FIG. 3;
  • FIG. 5 is a cross-sectional view showing the third embodiment of the present invention;
  • FIG. 6 is a cross-sectional view showing the fourth embodiment of the present invention;
  • FIG. 7 is a plan view of FIG. 6; and
  • FIG. 8 is a cross-sectional view showing the fifth embodiment of the present invention.
    • DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
    FIG. 1 is a cross-sectional view showing the first embodiment of the present invention, and FIG. 2 is a plan view thereof.
    The receiver-drier shown as a whole by reference number 100 comprises a body 110 formed by creating a cylindrical body with a bottom by forging an aluminum alloy material. The bottom member 120 of the body 110 is equipped with a first passage hole 122 and a second passage hole 124 for the refrigerant. One of the two passage holes for the refrigerant becomes the entrance hole of the refrigerant, and the other becomes the exit hole.
    Pipes 140 and 142 made of copper alloy are respectively inserted to the two holes 122 and 124, and bonded thereto by in-furnace brazing.
    A lid member 150 made of aluminum alloy is fit to the other end of the body 110 opposite the bottom member 120, which is fixed to position by TIG welding W1.
    A pipe member 130 formed to the center portion of the body 110 is integrally formed when forging the body 110.
    A pair of cap members 160 and 170 penetrated by the pipe member 130 are positioned opposing one another in the body. The inner side of the cap members 160 and 170 are equipped with metallic mesh members 162 and 172, respectively, and the space defined by the body and the cap members is filled with a drying agent 180.
    A groove 112 protruding inwardly is formed on the outer periphery of the body 110 by a knurling process or a punching process. The groove 112 creates a protrusion 112a that protrudes inwardly to the body, which is used for positioning the first cap member 160 in the axial direction that is positioned at a determined distance from the lid member 150.
    A coil spring 155 is inserted between the lid member 150 and the second cap member 170, constantly pressing the second cap member 170 toward the first cap member 160. According to this structure, the density of the drying agent 180 is maintained uniformly, and the moisture within the refrigerant can be absorbed and removed effectively.
    In a receiver-drier where the first pipe 140 is used as the entrance of the refrigerant, the refrigerant entering the body travels through the pipe member 130 formed integrally to the center of the body 110, and exits through the open end 132 into the space formed between the lid member 150 and the second cap member 170. The refrigerant passes through the second cap member 170 having gaps and the mesh member 172 into the drying agent 180, by which the moisture of the refrigerant is removed.
    Thereafter, the refrigerant passes through the mesh member 162 and the first cap member 160 having gaps and is stored in the space formed between the first cap member 160 and the bottom member 120 of the body 110, before being sent out to other members of the air conditioning device through the second pipe 142.
    When manufacturing the receiver-drier, the body 110 having two holes 122 and 124 formed to the bottom member 120 thereof and including a pipe member 130 integrally formed thereto is manufactured by forging, to which are assembled cap members 160, 170 and mesh members 162, 172. Then, the drying agent 180 is filled in the determined space, and the coil spring 155 is inserted thereto before fitting the lid member 150 to the body, which is welded by TIG welding W1.
    Next, pipes 140 and 142 are inserted to the assembled body, to which are performed in-furnace brazing so as to bond the pipes 140 and 142 to the holes 122 and 124 formed to the bottom member 120 of the body 110.
    According to the method disclosed above, the receiver-drier is manufactured by a less number of manufacturing steps.
    Moreover, as for the in-furnace brazing, the whole body is heated up to approximately 600 °C within the furnace, but the heat resistance of the receiver-drier can be secured by using metallic material for forming the cap members and the mesh members.
    FIG. 3 is a cross-sectional view showing the second embodiment of the present invention, and FIG. 4 is a plan view thereof.
    The receiver-drier shown as a whole by reference number 200 comprises a body 210 formed by brazing an aluminum alloy material into a cylindrical shape with a bottom. A first passage hole 222 and a second passage hole 224 are formed to the bottom member 220 of the body 210. One of the two passage holes for the refrigerant is used as the entrance hole of the refrigerant, and the other is used as the exit hole.
    A pipe 240 and a plug 242 made of copper alloy are respectively inserted to the holes 222 and 224, and the pipe 240 and the plug 242 are welded to position by in-furnace brazing.
    A lid member 250 made of aluminum alloy is fit to the opening of the body 210 opposite the bottom member 220, which is fixed to position by TIG welding W1.
    The pipe member 230 formed to the center area of the body 210 is formed integrally with the body when forging the body 210.
    A pair of cap members 260 and 270 penetrated by the pipe member 230 is positioned so as to oppose to one another inside the body 210. Metallic mesh members 262 and 272 are respectively positioned inside the cap members 260 and 270, and the space formed by these members within the body is filled with a drying agent 280.
    A groove 212 protruding inwardly is formed on the outer periphery of the body 210 by a knurling process or a punching process. The groove 212 creates a protrusion 212a that protrudes inwardly to the body, which is used for positioning the first cap member 260 in the axial direction that is positioned at a determined distance from the lid member 250.
    A coil spring 255 is inserted between the lid member 250 and the second cap member 270, constantly pressing the second cap member 270 toward the first cap member 260. According to this structure, the density of the drying agent 280 is maintained uniformly, and the moisture within the refrigerant can be absorbed and removed effectively.
    The refrigerant entering the body travels through the pipe member 230 formed integrally to the center of the body 210, and exits through the open end 232 into the space formed between the lid member 250 and the second cap member 270. The refrigerant passes through the second cap member 270 having gaps and the mesh member 272 into the drying agent 280, by which the moisture in the refrigerant is removed.
    Thereafter, the refrigerant passes through the mesh member 262 and the first cap member 260 having gaps and is stored in the space between the first cap member 260 and the bottom member 220 of the body 210, before being sent out to other members of the air conditioning device through the hole 224 formed to the bottom member 220 of the body and through the hole 244 of the plug 242.
    When manufacturing the receiver-drier, the body 210 having a hole 222 utilized as the first passage hole of the refrigerant formed to the bottom member 220 thereof and including a pipe member 230 integrally formed thereto is manufactured by forging, and thereafter, a side hole 224 utilized as the second passage hole of the refrigerant is formed by after-processing as the second hole. Then, the cap members 260, 270 and mesh members 262, 272 are assembled to the body, the drying agent 280 is filled into the determined space, and the coil spring 255 is inserted in position before fitting the lid member 250 to the body, which is fixed by TIG welding W1.
    Next, the pipe 240 and the plug 242 are inserted to the hole 222 and the hole 224 formed to the bottom member 220 of the assembled body, and the pipe 240 and the plug 242 is respectively fixed to the hole 222 and hole 224 on the bottom member 220 of the body 210 by in-furnace brazing.
    According to the method disclosed above, the receiver-drier is manufactured by a less number of manufacturing steps.
    Moreover, as for the in-furnace brazing, the whole body is heated up to approximately 600 °C within the furnace, but the heat resistance of the receiver-drier can be secured by using metallic material to form the cap members and the mesh members.
    According further to the present invention, the position of the second hole formed as a side hole 224 in the embodiment of FIG. 3 is not limited to the bottom member 220, but the second hole or side hole 224 can be formed on the body 210 close to the bottom member 220 by after-processing, as shown in the third embodiment of FIG. 5. According also to the third embodiment, the plug 242 is inserted to the side hole 224 and fixed thereto by in-furnace brazing.
    FIG. 6 is a cross-sectional view showing the fourth embodiment of the present invention, and FIG. 7 is a plan view thereof.
    The receiver-drier shown as a whole by reference number 300 comprises a body 310 formed by forging an aluminum alloy material into a cylinder-shaped body with a bottom. The bottom member 320 of the body 310 is equipped with a first refrigerant passage hole 322 formed roughly to the center of the bottom member 320, and a second passage hole 324 formed to a protrusion 326 equipped to the bottom member 320. One of the two passage holes for the refrigerant becomes the entrance for the refrigerant, and the other passage becomes the exit of the refrigerant.
    A corresponding member of a head 340 is inserted to the two holes 322 and 324 and bonded thereto.
    A lid member 350 made of aluminum alloy is fit to the other end of the body 310 opposite the bottom portion 320, which is fixed to position by TIG welding W1.
    A pipe member 330 formed to the center portion of the body 310 is integrally formed when forging the body 310.
    A pair of cap members 360 and 370 penetrated by the pipe member 330 are positioned so as to oppose to one another in the body. The inner side of the cap members 360 and 370 are equipped with sponge- like filter members 362 and 372, respectively, and the space defined by the body and the cap members is filled with a drying agent 380.
    A groove 312 protruding inwardly is formed on the outer periphery of the body 310 by a knurling process or a punching process. The groove 312 creates a protrusion 312a that protrudes inwardly to the body, which is used for positioning the first cap member 360 in the axial direction that is positioned at a determined distance from the lid member 350.
    The second cap member 370 is also positioned by a groove 314 formed similarly by a knurling process or a punching process . By the elasticity of the sponge- like filter members 362 and 372, the density of the drying agent 380 is maintained uniformly, and the moisture within the refrigerant can be absorbed and removed effectively.
    The head 340 comprises a protrusion 342 that fits into the first hole 322. Similarly, the bottom member 320 of the body 310 comprises a protrusion 326 formed integrally with the body 310 and fits to the hole 344 of the head 340.
    Seal members 343 and 327 are fit respectively to each protrusion 342 and 326, and then the protrusions are respectively inserted to the corresponding holes 322 and 344. A bolt 345 is used to secure the head 340 to the body 310.
    The refrigerant entering the body through the first hole 322 travels through the pipe member 330 formed integrally to the center of the body 310, and exits through the open end 332 into the space formed between the lid member 350 and the second cap member 370. The refrigerant passes through the second cap member 370 having gaps and the filter member 372 into the drying agent 380, by which the moisture in the refrigerant is removed.
    Thereafter, the refrigerant passes through the filter member 362 and the first cap member 360 having gaps and is stored in the space between the first cap member 360 and the bottom member 320 of the body 310, before being sent out to other members of the air conditioning device through the second hole 342.
    When manufacturing the receiver-drier, the body 310 having the hole 322 and the protrusion 326 including the hole 324 formed to the bottom member 320 thereof and including the pipe member 330 integrally formed thereto is manufactured by forging. Then, cap members 360, 370 and filter members 362, 372 are assembled to the body, the drying agent 180 is filled to the determined space, and the lid member 150 is fit to the body, which is fixed by TIG welding W1.
    Next, a head 340 is fit to the assembled body, which is fixed by a bolt 345.
    According to the manufacturing method explained above, the receiver-drier can be manufactured by a smaller number of steps .
    According to the embodiment shown in FIG. 6, the first passage hole 322 is formed to the substantial center of the bottom member 320 of the body, and the second passage hole 324 is formed to the protrusion 326 equipped to the bottom member 320 of the body. However, it should be noted that the position to which the protrusion 326 is equipped could be varied from the embodiment shown in FIG. 6. That is, as explained in the fifth embodiment shown in FIG. 8, the protrusion 326 formed to fit into the hole 344 of the plug 340 is integrally formed to the body 310 at the substantial center of the bottom member 320, and the first passage hole 322 is formed to the protrusion 326. Further, the second passage hole 324 to which a protrusion 342 formed to the plug 340 is inserted is formed to the bottom member 320 of the body.
    As explained above, the receiver-drier according to the present invention integrally forms a double wall cylinder body by forging an aluminum alloy material, which assembles necessary members in its structure. Therefore, the present receiver drier can be manufactured by a smaller number of processes or assembly steps.
    Further, since the pipe or plug member made of copper alloy is joined to the body by in-furnace brazing, the required strength of the body can be secured by a simple structure.

    Claims (5)

    1. A receiver-drier comprising a double wall cylinder body with a bottom and having a pipe member mounted to the center area thereof, a pair of cap members penetrated by the pipe member and positioned inside said body, a drying agent filled to the space formed between said pair of cap members, and a lid member that covers the opening portion of said body:
      wherein said receiver-drier characterizes in comprising a body made of aluminum alloy which is forged integrally with a bottom member including a hole that communicates to said pipe member;
      a pipe inserted to the hole formed to the bottom member of the body and joined thereto by in-furnace brazing; and
      a coil spring positioned between the lid member and one of the cap members.
    2. A receiver-drier comprising a double wall cylinder body with a bottom and having a pipe member mounted to the center area thereof, a pair of cap members penetrated by the pipe member and positioned inside said body, a drying agent filled to the space formed between said pair of cap members, and a lid member that covers the opening portion of said body:
      wherein said receiver-drier characterizes in comprising a body made of aluminum alloy which is forged integrally with a bottom member including a hole that communicates to said pipe member;
      a pipe inserted to a first hole formed to the bottom member of the body and bonded thereto by in-furnace brazing;
      a plug screwed onto a second hole formed to the bottom member of the body; and
      a coil spring mounted between said lid member and one of said cap members.
    3. A receiver-drier comprising a double wall cylinder body with a bottom and having a pipe member mounted to the center area thereof, a pair of cap members penetrated by the pipe member and positioned inside said body, a drying agent filled to the space formed between said pair of cap members, and a lid member that covers the opening portion of said body:
      wherein said receiver-drier characterizes in comprising a body made of aluminum alloy which is forged integrally with a bottom member including a hole that communicates to said pipe member;
      a pipe inserted to the hole formed to said bottom member of the body and bonded thereto by in-furnace brazing;
      a plug screwed onto the hole formed to said body; and
      a coil spring mounted between said lid member and one of said cap members.
    4. A receiver-drier comprising a double wall cylinder body with a bottom and having a pipe member mounted to the center area thereof, a pair of cap members penetrated by the pipe member and positioned inside said body, a drying agent filled to the space formed between said pair of cap members, and a lid member that covers the opening portion of said body:
      wherein said receiver-drier characterizes in comprising a body made of aluminum alloy which is forged integrally with a bottom member including a hole that communicates to said pipe member;
      a head having a protrusion and a hole, said protrusion being inserted to the hole formed to the bottom member of the body and said hole to which is inserted a protrusion formed to the bottom member of said body; and
      a bolt for fixing said head to the bottom portion of the body.
    5. A receiver-drier according to any one of claims 1, 2, 3 or 4, wherein said receiver-drier comprises a groove formed by knurling or punching the outside of said body, said groove protruding inwardly to the body so as to position said cap member.
    EP01122367A 2000-09-29 2001-09-19 Receiver-Drier Expired - Lifetime EP1193455B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    JP2000297989 2000-09-29
    JP2000297989A JP2002107010A (en) 2000-09-29 2000-09-29 Receiver dryer

    Publications (2)

    Publication Number Publication Date
    EP1193455A1 true EP1193455A1 (en) 2002-04-03
    EP1193455B1 EP1193455B1 (en) 2005-08-17

    Family

    ID=18780022

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP01122367A Expired - Lifetime EP1193455B1 (en) 2000-09-29 2001-09-19 Receiver-Drier

    Country Status (6)

    Country Link
    EP (1) EP1193455B1 (en)
    JP (1) JP2002107010A (en)
    KR (1) KR100782589B1 (en)
    CN (1) CN1187564C (en)
    DE (1) DE60112683T2 (en)
    TW (1) TW528844B (en)

    Cited By (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2004025195A1 (en) * 2002-08-31 2004-03-25 Behr Gmbh & Co. Manifold for cooling agent, heat exchanger, cooling agent closed circuit and method for producing a manifold
    FR2871559A1 (en) * 2004-06-14 2005-12-16 Georges Favier COMPACT HEAT PUMP HEAT OF WATER / WATER TYPE
    EP1916488A1 (en) * 2006-10-27 2008-04-30 Behr France Hambach S.A.R.L. Heat exchanger, in particular a condenser
    CN108826767A (en) * 2018-06-13 2018-11-16 苏州逸新和电子有限公司 A kind of copper-iron alloy liquid storage device

    Families Citing this family (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE102005033168B4 (en) 2005-07-13 2009-04-16 Jahn Gmbh Umform- Und Zerspanungstechnik Dryer for a cooling medium in a cooling medium circuit, in particular for an air conditioning system of a vehicle
    KR100973917B1 (en) * 2007-12-28 2010-08-03 성창전기(주) Decoration of cover for lamp
    CN101994427A (en) * 2009-08-20 2011-03-30 招远山玲锁业有限公司 Double-tube storehouse lock
    FR2954198B1 (en) * 2009-12-22 2012-02-03 Valeo Systemes Thermiques METHOD FOR BRAZING AN AIR CONDITIONING CIRCUIT COMPONENT COMPRISING A REFRIGERANT FLUID RESERVOIR BOTTLE AND SUCH A BOTTLE
    CN102313412A (en) * 2010-07-01 2012-01-11 浙江三花制冷集团有限公司 Matching device of barrel body and connecting pipe
    JP6364152B2 (en) * 2012-10-30 2018-07-25 株式会社不二工機 accumulator

    Citations (12)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE3543206A1 (en) * 1985-12-06 1987-06-11 Bellino Emaillier Stanz Metal Dryer container for air-conditioning and/or cooling installations
    US4707999A (en) * 1985-02-25 1987-11-24 Nippondenso Co., Ltd. Receiver for refrigerant apparatus
    FR2603498A3 (en) * 1986-09-04 1988-03-11 Kenmore Spa Filtration device for refrigeration circuits
    GB2266485A (en) * 1992-04-28 1993-11-03 Nippon Denso Co Process of producing one-end-closed double pipe
    US5365751A (en) * 1993-09-13 1994-11-22 General Motors Corporation Universal accumulator dehydrator assembly
    US5375327A (en) * 1992-05-01 1994-12-27 Automotive Fluid Systems, Inc. Method of manufacturing a receiver dryer
    FR2707891A1 (en) * 1993-07-19 1995-01-27 Manuli Automobile France Sa Filtration device for refrigeration circuit and method of manufacturing such a device.
    US5575833A (en) * 1992-09-25 1996-11-19 Parker-Hannifin Corporation Refrigerant recycling system and apparatus
    US5580451A (en) * 1995-05-01 1996-12-03 Automotive Fluid Systems, Inc. Air conditioning refrigerant fluid dryer assembly
    JPH11201590A (en) * 1998-01-20 1999-07-30 Fujitsu General Ltd Dryer
    JP2000171127A (en) * 1998-12-02 2000-06-23 Fuji Koki Corp Receiver drier
    EP1044836A1 (en) * 1999-04-14 2000-10-18 Hansa Metallwerke Ag Accumulator for an air conditioner of the orifice type, particularly for vehicle air conditioners

    Patent Citations (12)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4707999A (en) * 1985-02-25 1987-11-24 Nippondenso Co., Ltd. Receiver for refrigerant apparatus
    DE3543206A1 (en) * 1985-12-06 1987-06-11 Bellino Emaillier Stanz Metal Dryer container for air-conditioning and/or cooling installations
    FR2603498A3 (en) * 1986-09-04 1988-03-11 Kenmore Spa Filtration device for refrigeration circuits
    GB2266485A (en) * 1992-04-28 1993-11-03 Nippon Denso Co Process of producing one-end-closed double pipe
    US5375327A (en) * 1992-05-01 1994-12-27 Automotive Fluid Systems, Inc. Method of manufacturing a receiver dryer
    US5575833A (en) * 1992-09-25 1996-11-19 Parker-Hannifin Corporation Refrigerant recycling system and apparatus
    FR2707891A1 (en) * 1993-07-19 1995-01-27 Manuli Automobile France Sa Filtration device for refrigeration circuit and method of manufacturing such a device.
    US5365751A (en) * 1993-09-13 1994-11-22 General Motors Corporation Universal accumulator dehydrator assembly
    US5580451A (en) * 1995-05-01 1996-12-03 Automotive Fluid Systems, Inc. Air conditioning refrigerant fluid dryer assembly
    JPH11201590A (en) * 1998-01-20 1999-07-30 Fujitsu General Ltd Dryer
    JP2000171127A (en) * 1998-12-02 2000-06-23 Fuji Koki Corp Receiver drier
    EP1044836A1 (en) * 1999-04-14 2000-10-18 Hansa Metallwerke Ag Accumulator for an air conditioner of the orifice type, particularly for vehicle air conditioners

    Non-Patent Citations (2)

    * Cited by examiner, † Cited by third party
    Title
    PATENT ABSTRACTS OF JAPAN vol. 1999, no. 12 29 October 1999 (1999-10-29) *
    PATENT ABSTRACTS OF JAPAN vol. 2000, no. 09 13 October 2000 (2000-10-13) *

    Cited By (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2004025195A1 (en) * 2002-08-31 2004-03-25 Behr Gmbh & Co. Manifold for cooling agent, heat exchanger, cooling agent closed circuit and method for producing a manifold
    US7428825B2 (en) 2002-08-31 2008-09-30 Behr Gmbh & Co. Kg Manifold for cooling agent, heat exchanger, cooling agent closed circuit and method for producing a manifold
    FR2871559A1 (en) * 2004-06-14 2005-12-16 Georges Favier COMPACT HEAT PUMP HEAT OF WATER / WATER TYPE
    WO2006005832A1 (en) * 2004-06-14 2006-01-19 Horps, Michel Compact water/water heat pump core, and heat pump comprising same
    EP1916488A1 (en) * 2006-10-27 2008-04-30 Behr France Hambach S.A.R.L. Heat exchanger, in particular a condenser
    CN108826767A (en) * 2018-06-13 2018-11-16 苏州逸新和电子有限公司 A kind of copper-iron alloy liquid storage device

    Also Published As

    Publication number Publication date
    TW528844B (en) 2003-04-21
    CN1358976A (en) 2002-07-17
    EP1193455B1 (en) 2005-08-17
    KR20020025833A (en) 2002-04-04
    KR100782589B1 (en) 2007-12-06
    DE60112683T2 (en) 2006-06-08
    CN1187564C (en) 2005-02-02
    JP2002107010A (en) 2002-04-10
    DE60112683D1 (en) 2005-09-22

    Similar Documents

    Publication Publication Date Title
    US6851468B2 (en) Heat exchanger
    US6918436B2 (en) Brazed condenser for an air conditioner
    EP1193455A1 (en) Receiver-Drier
    US5179780A (en) Universal seamless receiver-dehydrator assembly for an automotive air conditioning system
    US20080148768A1 (en) Receiver tank for a condensor and method of manufacturing the same
    US5938236A (en) Gas generator for an air bag
    CA2409535C (en) Baffle connection for an accumulator and related method of manufacturing
    JP4836510B2 (en) Receiver dryer
    US20040149078A1 (en) Method of fabricating a housing assembly
    KR100561606B1 (en) Connection structure of condenser header and receiver drier tank for air conditioner
    AU729955B2 (en) Tube end closure
    JP4014781B2 (en) accumulator
    JP2005003265A (en) Heat exchanger and its manufacturing method
    JPH0338604Y2 (en)
    KR101215782B1 (en) Accumulator and Manufacturing Method of The Same
    TW491928B (en) Intake manifold
    KR100537228B1 (en) Structure for temporary assembly of devices mounted on condenser of automobile's airconditioner
    JP2007017060A (en) Refrigerant gas-liquid separator and method for manufacturing refrigerant gas-liquid separator
    JPS61175461A (en) Gas liquid separator
    JPH0413582Y2 (en)
    JPS6026312Y2 (en) Capacitor connector connection device
    JPH10318631A (en) Manufacturing method for liquid receiver
    JPS63207966A (en) Receiver
    JP2001132885A (en) Cylindrical body connecting structure
    KR100229417B1 (en) Method for brazing of a condenser use in an automobile

    Legal Events

    Date Code Title Description
    PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

    Free format text: ORIGINAL CODE: 0009012

    AK Designated contracting states

    Kind code of ref document: A1

    Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

    Kind code of ref document: A1

    Designated state(s): DE ES FR GB IT NL

    AX Request for extension of the european patent

    Free format text: AL;LT;LV;MK;RO;SI

    17P Request for examination filed

    Effective date: 20020709

    AKX Designation fees paid

    Free format text: DE ES FR GB IT NL

    17Q First examination report despatched

    Effective date: 20040329

    GRAP Despatch of communication of intention to grant a patent

    Free format text: ORIGINAL CODE: EPIDOSNIGR1

    GRAS Grant fee paid

    Free format text: ORIGINAL CODE: EPIDOSNIGR3

    GRAA (expected) grant

    Free format text: ORIGINAL CODE: 0009210

    AK Designated contracting states

    Kind code of ref document: B1

    Designated state(s): DE ES FR GB IT NL

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: NL

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20050817

    REG Reference to a national code

    Ref country code: GB

    Ref legal event code: FG4D

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: FR

    Payment date: 20050824

    Year of fee payment: 5

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: GB

    Payment date: 20050826

    Year of fee payment: 5

    REF Corresponds to:

    Ref document number: 60112683

    Country of ref document: DE

    Date of ref document: 20050922

    Kind code of ref document: P

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: DE

    Payment date: 20050929

    Year of fee payment: 5

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: ES

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20051128

    NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
    ET Fr: translation filed
    PLBE No opposition filed within time limit

    Free format text: ORIGINAL CODE: 0009261

    STAA Information on the status of an ep patent application or granted ep patent

    Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

    26N No opposition filed

    Effective date: 20060518

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: IT

    Payment date: 20060930

    Year of fee payment: 6

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: DE

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20070403

    GBPC Gb: european patent ceased through non-payment of renewal fee

    Effective date: 20060919

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: ST

    Effective date: 20070531

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: GB

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20060919

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: FR

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20061002

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: IT

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20070919