JP2007513309A - Heat exchangers and receiver dryer components for heat exchangers - Google Patents

Abstract

  The present invention relates to a receiver / dryer component of a refrigerant condenser of a vehicle air conditioner, and includes a receiver and a replaceable dryer mounted therein, and the receiver has a jacket wall extending around its long axis. The jacket wall is formed from the first tube at least partially extending in the longitudinal direction, and the receiver has at least one refrigerant intake opening and at least one refrigerant discharge opening. The discharge opening is arranged at the end of the receiver facing the first axial end, and the second end opposite to the first axial end of the receiver has a dryer replacement takeout opening. And a removable cap for the extraction opening is provided in the region of the second end, and the first tube has a removable cap. An adapter device or a first molded part for a removable cap is provided on the side opposite to the one end, and the removable cap is locked to the adapter device or the first molded part. Retained.

Description

  The present invention relates to receiver dryer components for heat exchangers, in particular to refrigerant condensers and heat exchangers for vehicle air conditioners.

  The receiver dryer component is used, for example, in a refrigerant condenser of a vehicle air conditioner. Particularly in this field, receiver dryer components, also called capacitor modules, have a receiver with a dryer. Such a dryer comprises, for example, a dryer cartridge and a strainer and can be configured as one component with them.

  A condenser for an air conditioner is usually provided with a tube fin block, and both ends of the tube are connected to collector tubes. One receiver is arranged in parallel and adjacent to one of these collector tubes. The receiver is connected through at least two overflow openings for fluid flow to an adjacent collector tube, through which fluid (especially refrigerant) can flow from the collector tube. It can flow into the receiver and fluid or refrigerant can flow from the receiver into the collector tube through another overflow opening.

  In a vehicle, such a capacitor is usually mounted so that the collector tube and the receiver are arranged substantially vertically. The overflow opening through which fluid or refrigerant flows as it flows from the receiver into the collector tube, or the corresponding receiver discharge opening, is usually located at the bottom of the receiver. This is because, in particular, this arrangement can reduce or prevent the possibility of any gasified fluid or refrigerant present in the receiver, if any, from the receiver opening.

  From Patent Document 1, a vehicle air conditioner capacitor having a tube-shaped extruded portion for forming a tube-shaped collector and a collector-shell half shell is known. Another half shell, shaped to this half shell of the extrusion, forms part of the jacket wall of the collector tube. The tube end of the tube fin block is fitted to the half shell of the collector tube made separately from the extruded portion. This half shell facing the tube fin block is described as the bottom and the half shell opposite the tube fin block is described as the lid. In such an extruded receiver with an integral lid, the wall thickness of the receiver is usually constant throughout its length. Since the collector tube lid portion and the receiver are directly connected by the extrusion molding portion, heat is usually directly conducted between the collector tube and the receiver.

  From US Pat. No. 6,057,059, a refrigerant condenser for a vehicle air conditioner is known in which a jacket wall of a collector or receiver is formed by one tube and a tube portion extruded under the tube. There are two holes in the jacket wall of this tube part, and the corresponding collar on the adjacent collector tube is fitted by press caulking so that fluid can flow. Therefore, the refrigerant can flow into the receiver or the refrigerant can be discharged from the receiver. The upper end of the receiver is closed by a pushed-in lid, and this lid is provided with an extended portion in an overhanging manner, so that this portion wraps and closes the upper end of the adjacent collector tube . The receiver and collector tube are held before brazing by the press caulking located at the lid and the lower part, and when this area is brazed and brazing is produced, the receiver and the adjacent collector tube are firmly attached at the upper end. And locked. The lower end of the receiver is closed with a plug.

From Patent Document 3, a capacitor is known in which the entire jacket wall of the receiver is composed of a single hollow tube. The wall thickness of the tube is substantially constant and the upper end is closed with a threaded lid.
German Patent Application Publication No. 197072020 European Patent Application No. 1310748 European Patent Application No. 0936423 German Patent Application Publication No. 10306192 German Patent Application No. 10338527 German Patent Application Publication No. 10306197

  An object of the present invention is to provide a receiver / dryer component for a heat exchanger that can be manufactured at low cost and can be stably operated.

  The present invention proposes a receiver dryer component according to claim 1 and a heat exchanger according to claim 30. Preferred embodiments are described in the dependent claims.

  The invention particularly relates to a receiver dryer component for a heat exchanger comprising a receiver and a dryer. This dryer is in the receiver and can be replaced, that is, it is not fixed in such a way that it cannot be removed without breaking it. The receiver has a jacket wall that extends about the longitudinal axis. The jacket wall is substantially composed of the first tube at least partially when viewed from the longitudinal direction of the receiver. The receiver also has at least one inlet opening for a fluid, such as a refrigerant, and an outlet opening for that fluid. At least the outlet opening is disposed at the end of the receiver facing the first axial end. The inlet opening may also be located at the end facing the first axial end of the receiver, or at another part of the receiver, in particular the second end opposite the first end. You can also. The inlet opening and the outlet opening are each preferably located on the jacket wall of the receiver. At the second axial end of the receiver opposite the first end is a removal or replacement opening for dryer replacement. The dryer can be removed through the opening for removal and a (new) dryer can be set. The receiver further has a removable cap for the removal opening. The removable cap is provided in the range of the second end. In particular, the removable opening can be closed or opened by using this removable cap. This cap can be removed either because it is not already held by the receiver when the cap is open, or because it is held by the receiver when the cap is open but does not block the removal opening. There can be. The end of the first tube opposite to the first end is provided with an adapter device or a first molded part, which holds the removable cap in a locked state. Or support.

  In order to hold or support in this way, for example, a cap that can be removed by screwing or the like directly engages with the adapter device or the first molded part, or via an element sandwiched between, for example, a lock ring, etc. The adapter device or the first molded part can be supported or held in a particularly combined manner.

  The cap can be prevented from opening unless the holding element that locks the cap is removed with the cap closed, and an example of such a holding element is a lock ring.

  Desirably, the cap is held axially.

  The dryer can comprise or consist of, for example, a dryer cartridge and strainer. The strainer can be combined and integrated as a single component with such a dryer cartridge, or it can exist separately from such a dryer cartridge. In particular, the dryer may be a dryer / strainer cartridge. An example embodiment of such a dryer cartridge or dryer / strainer cartridge and desirably an embodiment of the present invention includes US Pat. With respect to these, these embodiments are the subject of this disclosure. The dryer portion of this dryer serves to remove moisture of the fluid or refrigerant, particularly water. The strainer can filter out particulates present in the fluid or refrigerant, for example, due to wear or similar reasons.

  Replaceable dryers, particularly dryer cartridges and strainers or strainer / dryer cartridges, are preferably pushed into the receiver in the brazing furnace after brazing during the manufacturing process.

  It is possible to use a brazing dryer, in particular a dryer with a brazing dryer part and a brazing strainer part. Brazing dryers are particularly those that do not break or break in the brazing furnace.

  The cap can be, for example, a plug-type cap or a screw-type cap.

  For example, especially when the receiver is incorporated into a vehicle air conditioner refrigerant condenser and attached to the vehicle, the second end of the receiver is the upper end, so a removable cap is connected or attached to the upper end of the receiver.

  The first molded part is preferably inserted into and brazed to the first tube of the receiver. The first tube can be manufactured as a single part or a single piece, or a plurality of individually manufactured parts can be connected to form a single piece of tube. For example, it is also possible to assemble, or weld or braze a plurality, especially two half tube moldings. Therefore, for example, a separation surface may occur in the longitudinal direction of the tube. Desirably, the first tube is cylindrical. However, other shapes of cross sections may be shown. Desirably, the adapter device or the first molded part is formed in a tube shape or a ring shape. The adapter device can be, for example, an adapter ring. The first molded part can also be an adapter device. In a preferred embodiment, the first molded part is connected to the first tube such that the first molded part forms a jacket wall part of the receiver that is connected to the jacket wall part formed by the first tube. ing. The adapter device or the first molded part is in particular a part or device manufactured separately from the first tube. Particularly preferably, they are securely connected to the first tube, as already mentioned. Such a secure connection is made, for example, by welding or brazing. In this case, it is particularly desirable that the connection be leak-free. Desirably, the wall thickness of the tube-shaped first molded part is at least partially greater than the wall thickness of the first tube in useful embodiments. In the preferred embodiment, the wall thickness of the first tube is constant, especially when viewed from the circumferential direction and the long axis direction. The inner surface of the first molded part is, in a preferred development, partially or completely substantially circular when viewed in cross section. When viewed from various points along the long axis, the first molded portion has various (inner) circumferential dimensions, i.e., inner surface circumferential dimensions. For example, a step or an inclination can be provided when viewed from the long axis direction. In particular, if the inner surface is circular or the cross section is circular, the diameters may be varied.

  The first tube is desirably a welded tube made from a semi-finished material.

  In a preferred embodiment, the cap is completely embedded in the first molded part in the closed state. In a preferred embodiment of the invention, the first molded part is provided with at least one groove, in particular a circumferential groove, for fitting the lock ring. This groove may be located in the inner surface of the first molded part. A locking ring can be fitted in such a groove in a removable manner, whereby the cap element can be held in a locked state in a removable manner. In this case, in particular, a plug can be used as the cap. The removable locking connection of the receiver can thus be realized, for example, with a plug with a lock ring. Also, the removable lock connection can be realized with a screw-type plug or a screw-type cap. For this purpose, the screw-type plug or screw-type cap is provided with a screw thread, which is locked by being engaged and screwed with the reverse screw thread in the first molding part. The threaded cap may have an internal thread and the first molded part may have an external thread, or the threaded cap may have an external thread and the first molded part may have a corresponding internal thread. . Desirably at least one sealing device is provided. The sealing device is particularly preferably provided for sealing the cap held in a removable form against the first molded part or adapter device. For this purpose, for example, one or more circumferential grooves are provided in the cap element, and one O-ring is set in each of these grooves. Particularly in such embodiments, the first molded part is desirably provided with a joining surface for the one or more O-rings. Also, such a joint or contact surface for the one or more O-rings can be formed by one surface portion of the first tube. In such an embodiment, it is useful to take care that each interface has its own tolerance. The joining surface can be in particular the first molded part or part of the inner surface of the first tube, but especially for the first tube, especially when the (inner) shape is circular, the tolerance of the inner diameter is acceptable. Note that is reduced accordingly. If such a joining surface is formed by one surface part of the first tube, the first molded part can be made smaller or shorter accordingly. In a preferred embodiment, in particular, it is possible for the first molded part to have only one groove for setting one lock ring or to thereby cause a connection with the tube. In a preferred embodiment, the first molded part is circular. As a result, the amount of input material can be suppressed to a small amount under certain conditions, and the processing can be simplified. However, the first molded portion can have other shapes. The first molded part can in particular have any outer contour. Such an outer contour can form a contact surface with the collector tube, for example. Also, the outer contour of the first molded part can additionally or alternatively form a contact surface with the holder. Such a holder can be, for example, a ring holder. Such a holder or ring holder may be responsible for holding the collector tube against the receiver, for example. This is for example by fitting the collector tube to the receiver or holding it in a similar manner with at least one such holder, but at this time in the production in the brazing furnace the receiver and the holder and / or The brazing of the holder and the collector tube is additionally performed. This means that the receiver can be attached to the collector tube via such a holder, which can be formed in particular as a ring holder, and this attachment is particularly preferably not fixed or removable after the brazing process. Done.

  In a preferred embodiment, the first molded part is formed short. In particular, the first molded portion can be configured to be relatively short as compared to the first tube as viewed from the long axis direction of the receiver. The first molded portion can be configured to be shorter in the direction of the major axis than in the direction perpendicular to the major axis. However, it is also possible to configure the first molded part longer in the direction of the major axis than in the direction perpendicular to the major axis.

  Desirably, this first molded part is circular.

  Particularly desirably, the wall thickness of the first molded portion is greater than the wall thickness of the first tube. There may be variations in the wall thickness of the first molded part.

  In a particularly desirable embodiment, the first molded part is provided with a thread for engaging a thread provided on the cap, or a groove for setting a lock ring that holds the cap in a removable state. However, the other wall thickness in the area of this thread or this groove is equal to or greater than the wall thickness of the first tube. This is in particular due to the fact that this groove is a recess provided in this wall or that a helical recess is provided in the thread, and remains in the area of these respective recesses. The wall thickness of is equal to or greater than the wall thickness of the first tube.

  In a preferred embodiment of the present invention, the fluid inlet opening provided in the first receiver is arranged in an end facing the first axial end. However, this inlet opening can also be arranged at other locations, in particular at the end opposite to the first axial end.

  The inlet opening and the outlet opening are arranged in the jacket wall of the receiver in a particularly preferred embodiment. Preferably, the receiver is provided with a rim hole. This rim hole particularly preferably projects outward. With this rim hole, the preferred method defines the openings by defining the boundaries of the inlet or outlet openings.

  Also, the receiver can be provided with a protruding portion projecting outward, preferably with a ring-shaped outer contact surface. Such protrusions desirably define or define the boundaries of the inlet or outlet openings.

  In particularly desirable embodiments, such a protrusion or rim hole is provided in the first tube.

  In a preferred development of the invention, a second molded part is provided in the end of the receiver, facing towards the first end of the receiver. This second molded part is an extruded molded part in the preferred embodiment.

  In a preferred development, this second molded part is provided with intake openings and discharge openings for the fluid or for the receiver refrigerant. In a particularly desirable embodiment, the intake opening and the discharge opening are formed as holes in the jacket wall of the second molded part.

  This second molded part is preferably connected to the first tube, in particular directly connected. This connection can be a non-removable connection, in particular a brazing or welding bond or the like.

  This second molded part is closed at the end opposite to the second end of the receiver by a removable cap, such as a screw cap or plug or the like. This removable cap can be, for example, a removable cap located in the first molded part. Similarly, similar threads or grooves for setting the lock ring can be provided in the second molded part. Furthermore, a suitable sealing device can be provided for sealing the cap that locks the second molded part against the second molded part. An interface similar to that described with respect to the first molded part or the removable connection therein may be provided on the second molded part. Further, a similar groove can be provided to hold the removable cap on the second molded part.

  The second molded part can also be locked to the end opposite to the second end of the receiver using a non-removable cap. This cap can seal the first end of the receiver, for example by forming a groove connection with a sealing force.

  Preferably, a strainer device is mounted in the receiver. Such strainer devices together with a dryer form a single component, for example a dryer cartridge. In the present invention, such a component is also expressed as a dryer.

  The present invention further proposes a heat exchanger comprising the receiver dryer component of the present invention. Such a heat exchanger can be a refrigerant condenser for a vehicle air conditioner in particular.

  In a preferred embodiment, such a heat exchanger comprises a tube block or tube fin block, which is configured as a plurality of tubes and tube fin blocks that are at least partially parallel. In particular, it is provided with fins arranged between the tubes. The first end of each of the tubes of this block is attached to a first collector tube arranged in parallel with the receiver. This first collector tube is arranged in particular next to the receiver, for example it can be held in this receiver. The first collector tube has at least two openings, one of which is assigned to the receiver intake opening and the other to the receiver discharge opening, so that the overflow opening or overflow respectively. -A duct is formed. For example, it is possible to arrange additional ducts or the like between the openings assigned to each other. Through these overflow openings or overflow ducts, fluid or refrigerant can flow from the first collector tube to the receiver and vice versa.

  Particularly desirably, a second collector tube may be further provided to attach the second end of each tube of the tube block or tube fin block. Particularly in such embodiments with two collector tubes, the tube or tube fin block tube or the entire tube can be formed straight.

  The front of the tube of the tube block or the tube fin block is preferably provided with a plurality of openings, which are connected via a duct inside the tube.

  Desirably, the second end of the tube of the tube block or tube fin block is attached to a second collector tube disposed parallel to the first collector tube.

  The first collector tube preferably has a shell-like lid and a shell-like bottom bonded thereto. The lid portion and the bottom portion are bonded to each other by brazing or welding, for example. The lid portion and the bottom portion are arranged with each other so as to form a jacket wall of the first receiver. An opening such as a slit is provided at the bottom, and a first tube end of a tube block or a tube fin block is attached to the opening.

  The second collector tube can be composed of, for example, one lid portion and one bottom portion. At this time, the second tube end of the tube of the tube block or the tube fin block is formed in the opening or slit of the bottom portion. Install.

  In a preferred embodiment, the first collector tube is provided with a plurality of rim holes that project inward or outward to form openings, these rim holes preferably being provided in the lid and on the receiver side. Facing. One of these rim holes is assigned to the intake opening and one to the discharge opening of the receiver.

  In a preferred embodiment, the rim holes of such first collector tube are telescopically inserted into the rim hole of the receiver, thereby forming an overflow opening or overflow duct. One of these overflow openings or overflow ducts is used to allow fluid or refrigerant to flow from the first collector tube to the receiver, and the other overflow openings or overflow ducts allow fluid to flow from the receiver to the first collector.・ Used to flow into the tube.

  Rimholes can be arranged such that the rimholes of the receiver and the rimholes of the first collector tube are not in the telescopically inserted relationship with each other so that their front surfaces projecting outwardly meet. At this time, the front surfaces abutted with each other preferably have the same shape and dimensions. This front surface can be annular, for example.

  Two rim holes whose front faces are abutted against each other can be covered together with one sleeve arranged radially outward. The sleeve can also be arranged radially inward of the rim holes butted against each other. Desirably, the rim holes assigned to each other are brazed together and / or brazed with such sleeves, if any. Such a brazing process can be performed in a brazing furnace, for example.

  When the first collector tube forms an opening assigned to the intake opening or the receiver discharge opening, the first collector tube is shaped outward and the outer contact surface can be preferably ring-shaped. .

  Preferably, the first collector tube is provided with a collar that protrudes outwardly to form one opening each, and these collars are fitted into the intake opening or the discharge opening of the receiver, and the overflow opening. Forming a section or overflow duct. At this time, in particular, the intake opening or the discharge opening can be formed as holes, respectively, and particularly preferably arranged in the second molded part of the receiver. Even in this range, a hermetic connection is preferably made. Particularly preferably, brazing adhesion is also performed in this range.

  Also preferably, the second molded part is provided with an outer surface area facing the first collector tube, which is adapted to the shape of the outer surface area of the first collector tube. The outer surface area of the second molded part is, for example, arched. Particularly desirably, these outer surface areas are in contact with each other. The corresponding outer surface area of the collector tube can be, for example, a cylindrical piece.

Particularly preferably, the overflow opening or the overflow duct is formed along one of the variations described in US Pat. No. 6,099,056, which is hereby incorporated by reference into this patent application. Since the connection between the first collector tube and the receiver described therein is also performed in the preferred embodiment, Patent Literature 5 is cited also in this regard, and the embodiment is also the subject of the present disclosure. . This is especially in respect of the connection establishment step, in particular in the area of the overflow opening or overflow duct.
However, it should be noted here that the common lid of the present invention, which is provided at the upper end of the receiver or collector tube in the above-mentioned patent application, is not provided. This is because the part of the lid that covers the receiver cannot be removed.
In a preferred embodiment, however, it is possible to provide a ring holder covering the upper end of the first collector tube, for example according to US Pat. It has a ring-shaped or arc-shaped area that completely or partially surrounds the collector.

  As already mentioned, there is an extrusion at the end of the receiver facing the first axial end, i.e. the lower end. A hole facing the collector tube can be formed in the extruded portion, and a rim hole of the collector tube can be fitted into the hole to form an overflow opening or overflow duct. This second molded part or molded part can be connected to the first tube of the receiver, which can be inserted into its upper end to form a brazed first molded part.

  In the region of the lower end or the first axial end, as already mentioned, the second molded part is provided with a removable cap. In the preferred embodiment, the cap-covered opening not only allows the dryer to be removed from the top, but can also be removed from the bottom.

  In a preferred embodiment, the receiver and the first collector tube are separated by a single slit, but are adjacent to each other.

  The configuration of the second extrusion molding part and the overflow opening or overflow duct can be as described in, for example, Patent Document 2, and in this respect, this is cited as the object of the present invention. This is a preferred embodiment of the present invention.

  The receiver can be of any length. For example, one or both sides of the receiver can be shorter than the first collector tube. Also, one or both sides of the receiver can be longer than the first collector tube. It can also be the same length as the first collector tube.

  The first molded part is preferably an extruded part. The first molded part and / or the second molded part can be provided with a contact surface for the first collector tube or the lid of the first collector tube. Further, the first molded part and / or the second molded part can include an extrusion holder.

  In particularly desirable embodiments, the wall thickness of the first tube is configured to withstand burst pressures or pressures that occur in the receiver during operation. It is also possible to increase the wall thickness to some extent, for example, slightly.

  Particularly desirably, the wall thickness of the first molded part and / or the second molded part is greater than the wall thickness of the first tube.

  A removable cap is provided at the upper end of the receiver or at the second end of the receiver so that the replaceable dryer can be removed, set, or replaced through the opening covered by the cap. You can. It is often useful to perform the exchange at the upper end because it is easier to work at the upper end due to the structure of the heat exchanger. The provision of a molded part for the adapter or the removable cap at the upper or second end of the receiver replaces the dryer in the preferred embodiment through an opening located in the upper region. In addition to making this possible, it is also the basis for numerous embodiments that reduce cost and weight. Thus, for example, the collector jacket wall can be constructed with a relatively thin wall thickness over a wide range, can withstand the pressure or burst pressure generated in the receiver, and can be removed in the range of the upper end or second end of the receiver. Possible caps can be arranged, and the caps can be held almost securely in a locked state. Thus, for example, the molded part or adapter device arranged at the first or upper end can be provided with threads or grooves for setting the lock ring, or similar recesses, for which the entire length of the receiver can be provided. There is no need to increase the wall thickness. Thus, the wall thickness of the receiver, for example in the range of the first tube, can withstand the pressure or burst pressure generated in the receiver during operation, but there are grooves or threads for the removable cap element there. Once placed, it can be made thin enough that it can no longer be adequately protected. Thus, in a preferred development, the wall thickness of the adapter or first molded part is such that the grooves, threads and the like are not thick enough to be dangerous even if such recesses are provided. Can be thickened.

  In the present invention, it is possible to remove or replace the dryer from above or from the top opening of the receiver. On the basis of the present invention, in particular in embodiments that can be taken out or replaced from an opening or replacement opening arranged in the region of the second opening, as also showing the preferred embodiment The cost can be reduced by eliminating the long extruded portion. Embodiments of the present invention can also be reduced in weight, either directly or by development. Embodiments of the present invention are useful to place a removable cap on the top of the receiver so that the dryer can be replaced in a simpler and preferred manner, or in some cases, allowing the dryer to be replaced first. Or, it is useful when used in vehicles that need it. The present invention also provides the basis for the thermal separation of the first collector tube and receiver in a simple manner.

  Hereinafter, examples will be described with reference to the drawings, but the present invention is not limited thereto.

  FIG. 1 illustrates a portion of an example of a heat exchanger 1 of the present invention comprising an example of a receiver 10 of the present invention or an example of a receiver dryer component of the present invention.

  The heat exchanger 1 includes a receiver (collector) 10, a first collector tube 12, and a second collector tube and tube fin block 14 (not shown). The tube fin block 14 is provided with a number of tubes 16 arranged in parallel, which are formed, for example, as flat tubes, extending straight and each first end being a first collector tube. 12 is attached. For this purpose, the first collector tube 12 is provided with openings formed as slits facing the tube fin block, and these tube ends are attached to these openings. These tube ends can be inserted slightly into the collector tube 12 if desired. The second end of the tube 16 of the tube fin block 14 (not shown in FIG. 1) is also attached to the second collector tube (not shown), so that the first end is passed through the tube 16. A flow connection can be made between the collector tube 12 and the second collector tube, respectively.

  In a preferred embodiment, the present invention is installed or utilized in a vehicle air conditioner refrigerant capacitor.

  At this time, since the refrigerant flows through the tube 16, a refrigerant connection is created between the first collector tube 12 and the second collector tube via the tube 16. A plurality of intermediate walls can be mounted in the collector tube that divide perpendicularly to its long axis so that the refrigerant meanders through the tube 16 and the two collector tubes. At this time, for example, a plurality of tubes 16 may be arranged between the two dividing walls.

  The collector tubes can each consist of one bottom and one lid, each bottom facing the tube fin block 14 and the lid on the opposite side of the tube fin block 14. . A receiver 10 is arranged next to the first collector tube 12, and the receiver 10 extends substantially parallel to the first collector tube 12. The receiver 10 can be located on the opposite side of the first collector tube 12 from the tube fin block. The receiver 10 can also be pivoted in the direction of this tube fin block.

  A second collector tube, not shown, does not include such a receiver 10.

  The upper and lower sides of the second collector tube are locked by appropriate locking means. Here, for example, a non-removable lid can be used. A removable lid can also be used. Non-removable lids can be attached in particular by brazing or welding.

  Fins are respectively arranged between the tubes 16 of the tube fin block 14, and air flows through these fins, particularly in a direction transverse to the longitudinal direction of the tube 16.

  The receiver 10 includes a first tube 20 and a first molded portion 22. The first molded portion 22 is disposed at the end of the receiver 10 on the side opposite to the first end 24. This end is the upper end. The first molded portion 22 extends substantially to the second or upper end 26 of the receiver 10.

  In the embodiment of FIG. 1, the first tube 20 is basically a hollow cylinder. The molded portion 22 has a substantially circular shape, and the outer sleeve surface has a substantially cylindrical shape. There is a groove in a part of the inside of the molded part, which will be further described in the following figures.

  The wall thickness of the first tube 20 is thinner than the wall thickness of the molded part 22. Therefore, the first tube 20 is basically formed with a thinner wall than the molded portion 22.

  Between the receiver 10 and the first collector tube 12, an overflow opening or overflow duct 28, 30 is provided. The overflow opening 28 or overflow duct 28 serves to allow fluid or refrigerant to flow from the receiver 10 to the first collector tube 12, and the overflow opening or overflow duct 30 contains fluid or refrigerant. The first collector tube 12 serves to flow to the receiver 10. A seal lip or appropriate dividing means is provided between the overflow openings 28 and 30 to prevent fluid or refrigerant from flowing directly from the overflow opening 30 into the overflow opening 28 inside the receiver 10. Yes. The receiver 10 is also provided with a dryer, which is provided with a dryer cartridge and a strainer. The dryer portion or dryer cartridge of this dryer serves to remove moisture or moisture from the fluid or refrigerant. For this purpose, for example, granules or powders or the like can be used. The strainer has a role of removing particulate matter mixed in the fluid or the refrigerant due to, for example, abrasion.

  The first tube 20 can be, for example, a welded tube.

  The first molded portion 22 is set on the first tube 20 and brazed thereto.

  At the second end or lower end 24 of the first tube 20, the tube is locked. For this purpose, a cap element 32 is provided. This cap element 32 in the embodiment of FIG. 1 is non-removably and hermetically connected to the first tube 20. For this purpose, for example, brazing adhesion can be used.

  A ring holder 34 is provided in the range of the second end 26 or the upper end of the receiver 10. The ring holder 34 at least partially surrounds the receiver 10 or the first molded part 22 thereof, but here surrounds the entire circumference. As shown in FIG. 2, the ring holder has a bent portion that slightly protrudes from the front surface of the molded portion. The ring holder is further provided with an attachment portion, which is fitted in the upper end or upper region of the first collector tube 12. Thereby, the attached part of the ring holder can form a lid for locking the first collector tube 12 in this range. The ring holder can also surround the collector tube from the outside. The ring holder can also be inserted so as to be held in the opening on the front surface of the collector tube. Desirably, the ring holder is attached to the first collector tube 12 and the receiver 10 or the first molded portion 22 so as to be clamped. With such a ring holder, the first collector tube 12 can be held on the receiver 10 or the first molded part 22, or via this ring holder, the collector reservoir 10 is at least in the upper region in the first collector. Can be attached to the tube 12 In the brazing process in the brazing furnace, the ring holder 34 is brazed to the first collector tube 12 and the receiver 10 or the first molding portion 22 in the brazing furnace. This is performed, for example, so as to seal the upper end of the first collector tube 12.

  Prior to entering the brazing furnace, a pre-fixing brazing point or bonding location can be provided.

  FIG. 2 is an enlarged view of the upper part of the embodiment of FIG. 1, but here the receiver 10 or the first tube 20, the first molded part 22 and the ring holder 34 are partially broken. The device is shown tilted slightly forward compared to the embodiment of FIG.

  In FIG. 2, there is a removable cap element 36 by which the second end 26 or upper end 26 of the receiver can be locked. The cap element 36 is here formed as a plug. The outer surface of the cap element 36 is provided with two circumferentially arranged grooves spaced apart in the vertical direction, and a sealing device formed as an O-ring 38 is arranged in each of these grooves. ing. The inner surface of the molded part 22 is provided with a joint surface 40 for the O-ring of the plug 36.

  Furthermore, one circumferential groove 42 is provided on the inner surface of the first molded portion 22, and a lock ring can be fitted into this groove.

  A plug or cap element 36 is inserted into the first molded part, so that the plug or cap element 36 can be kept in its locked state by means of a locking ring arranged in the groove 24 or later. Then lock. The lock ring can be removed using a suitable tool, for example, so that the cap can be removed again or the dryer can be removed.

  A stopper or other suitable means can be used to prevent the cap from falling into the receiver 10.

  For this purpose, for example, a distance piece or a stopper or a spring or a device for accumulating a similar force can be provided.

  Desirably, the dryer can be configured in particular as a dryer cartridge and kept in a particular position in a removable state.

  For this purpose, for example, a device for accumulating force or an elastic holding element and / or the like can be provided.

  An example relating to such holding is disclosed in US Pat. No. 6,057,836 by the present applicant and is hereby incorporated by reference into this disclosure as a preferred embodiment.

  The above patent also discloses a dryer configured as a dryer strainer cartridge. The dryer, or dryer element, or strainer element, or dryer strainer cartridge configuration can also be used in a preferred embodiment of the present invention, and in this regard, reference is made to US Pat. And

  The inner surface of the first molded portion 22 has a circumferential inclination, and for example, an O-ring can be slowly attached by this inclination. Therefore, this inclination is disposed above the joint surface of the first molded portion 22.

  As shown in FIG. 2, the wall thickness of the first molded portion is thicker than the wall thickness of the first tube 10. This is because the first molded portion is in contact with the terminal end of the tube 20 so as to be substantially flush in the contact range between the first molded portion 22 and the tube 20 on the radially inner side, Further, on the outer side in the radial direction, an attachment portion 44 that is in close contact with the outer surface so as to cover or wrap around the tube 20 is provided.

  Here, the tube 20 is supported by the first molded portion 22 in the axial direction, and the molded portion 22 is covered with the first tube 20.

  FIG. 3 is an enlarged view of an example of the lower part of the embodiment of FIG. 1, partially cut open.

  The cut-away portion shows a portion of the dryer or dryer cartridge or dryer / strainer cartridge, which can be configured, for example, as described in Applicant's US Pat. In particular, the dryer cartridge or the dryer / strainer cartridge can be configured as one unit with a strainer. However, the strainer can be provided separately from the strainer cartridge. Dryer cartridges and strainers are also referred to as dryers.

  In FIG. 3, the overflow opening or overflow duct 28 is shown cut open. In this figure, there are provided projecting portions 60 and 62 for forming the overflow opening of the overflow duct 28 in the receiver 10 or the first tube 20 on the one hand and in the first collector tube 12 on the other hand. Each of the protruding portions protrudes outward and is slightly inserted here, but other configurations are possible. In the range of the overflow opening, including the overflow opening 30, the first collector tubes 12 are firmly brazed to each other.

  The dryer / strainer cartridge or dryer cartridge 64 of the dryer 66 is held in a removable notch fitting 68 in the receiver 10, so this cartridge is fixed in the longitudinal direction of the collector reservoir, Can be removed. At least one of the disk-like elements 69, 69a can be a sealing lip. The seal lips 69, 69a in particular prevent fluid or refrigerant from flowing directly from the overflow opening or overflow duct 30 to the overflow opening or overflow duct 28 and ensure that the fluid or refrigerant passes through the dryer. Can do.

  FIG. 3 further shows that a slit is provided between the receiver 10 and the first collector tube 12, and these slits can be substantially separated from each other.

  FIG. 4 shows a partial cross-sectional view of the embodiment of FIG.

  As can be seen from this figure, the slope 44 of the molded part 22 is in the direction of the upper end of the receiver 10 or the first end 24 when viewed from the position where the O-ring 38 is disposed. In FIG. 4, the groove 42 provided on the inner surface of the first molded part 22 and comprising a lock ring for holding the cap element 36 is also clearly visible.

  Further, in FIG. 4, in the contact range between the first lock portion 22 and the first tube 20, these components are in contact with each other at substantially the same height on the inner surface thereof, and the attached portion of the first molded portion 22 is shown. It is well shown that 46 extends to cover the outer surface of the first tube 20. FIG. 4 also shows a lock ring 72 set in the groove 42.

  FIG. 5 shows an example of an alternative embodiment of the receiver 10 or the first collector tube 12, showing the range towards the lower end or the first end, respectively. This embodiment can in particular be a component of a heat exchanger. For example, this embodiment of FIG. 5 may be an alternative to the lower range of the heat exchanger of the embodiment of FIG. For example, the embodiment of FIG. 5 may alternatively be provided in the lower range of the embodiment of FIG. The upper range of the receiver 10 in FIG. 5 can be configured as described in the description of FIGS. 2 and 4, for example. In the receiver 10 of FIG. 5, for example, a dryer strainer cartridge or a dryer cartridge 64 of the dryer 66 can be arranged as described in the description of FIG.

  The receiver 10 of the embodiment of FIG. 5 differs in that the first tube 20 does not extend to the end 24, particularly at the end facing the first end 24. According to FIG. 5, the second molding part or the second extrusion molding part 80 is arranged at the lower end or the first end of the receiver. The second extrusion molding portion 80 is connected to the first tube 20 on the side opposite to the first molding portion. In the embodiment of FIG. 5, a first molded part is also provided in the illustrated manner, which part can be configured in particular as already described above, but is not shown in FIG. The wall thickness of the second extruded portion 80 is thicker than the wall thickness of the first tube 20. Extrusion 80 can be configured in particular in the same manner as the extrudate in the area under the receiver described with reference to the lower part of the receiver of FIG. This is the subject of this disclosure. Similarly, since the lower range of the first collector tube is similarly illustrated in FIG. 2 of Patent Document 2, the above patent example is cited as an embodiment of the lower range of the first collector tube. These examples are the subject of this disclosure.

  In particular, the wall thickness of the second molded portion 80 is thicker than the first tube 20 of the receiver 10. In particular in the embodiment of FIG. 5, the second molded part is provided with passage holes 82, 84 on the side facing the first collector tube 12, in these holes the first collector tube or the first collector. The rim hole 86 or 88 of the tube lid 90 is inserted or inserted in an attached state. The second molded part 80 further has a region 92 of its outer surface, which is adapted to the shape of the outer surface region 94 of the first collector tube 12 or the lid 90 and touches or is in contact with this surface region. It is in close contact with. As can be seen from FIG. 5, this outer surface area 92 of the second molded part 18 is formed in an arch shape.

  FIG. 6 illustrates an alternative embodiment of the end of the receiver 10 located in the upper region of the embodiment of FIGS. 2 and 4 or in the region of the second end 26 in a partially cut away form. It is. The embodiment of FIG. 6 can be combined with the embodiment of FIGS. 1 and / or 3 and / or 5 in particular. In the following, the differences between the embodiment of FIG. 6 and the embodiment of FIGS. 2 and 4 will be mainly described, but for the other features of the preferred embodiment, reference is made to the description of FIGS.

  The difference between the embodiment of FIG. 6 and the embodiment of FIG. 2 or 4 is that the joining surface 40 for the two O-rings 38 is mainly formed by a part of the inner surface of the first molded part 22. Instead, it is formed by a part of the inner surface of the first tube 20. At this time, it is desirable that the tolerance of the inner surface portion or the inner diameter of the first tube 20 is small or very small.

  Thus, in the embodiment of FIG. 6, the molded part 22 is configured smaller or shorter (compared to the embodiment of FIG. 2 or 4) and includes only a groove 42 for mounting the lock ring 72. Yes. This molded portion is connected to the first tube 20 by, for example, the method described with reference to the previous drawing.

  FIG. 7 is an example of an embodiment of the lower range of the receiver 10, and can be combined with other embodiments described as examples in this figure as an alternative to the embodiment of the receiver 10 described in FIG. 3, for example. Also in the embodiment of FIG. 7, although not shown, a first molded portion 22 and a removable cap element 36 are provided at the upper or second end of the receiver.

  In the following, differences from the lower range of the receiver 22 embodiment of FIG. 3 in particular will be described.

  In the embodiment of FIG. 7, a second molding portion 80 a is provided at the upper end of the receiver 10 or the end opposite to the second end 24, which is made by, for example, extrusion molding. Further, in the embodiment of FIG. 7, the receiver is locked at the first lower end by a (second) removable cap 100. This (second) removable cap 100 is configured, for example, as a removable cap element 36 that locks the upper end or first end 24 of the receiver 10. In FIG. 7, the cap 100 is configured as a plug, which is substantially the same as the plug 36 described in FIGS. The second molded portion 80a can also be configured in the same manner as the first molded portion described with reference to FIGS. This second molded part can be, for example, an extruded part.

  In particular, two circumferential grooves that are spaced apart in the axial direction can be provided in the plug or cap 100 in a particularly similar manner, each plug or cap having an O-ring 38 for sealing. The O-ring is installed to seal the second molded portion 80a or the inner surface of the first tube 20. This second molded part is provided in particular with a circumferential groove, to which a removable lock ring holding the cap 100 is attached. In particular, the connection between the second molded portion 80a and the end of the adjacent tube 20 is performed between the opposite end of the tube 20 and the removable cap provided at the upper end, including the corresponding shape of the connection range. This can be the same as the description of the connection.

1 is a partial illustration of an example of a heat exchanger 1 of the present invention comprising a receiver of the present invention. The upper part of FIG. 1 is enlarged and partly cut open. The lower part of the embodiment of FIG. 1 is enlarged and partly cut open. FIG. 3 is a partial sectional view of the embodiment of FIG. 2. It is the figure which removed the lower end of the collector and the 1st collector tube partially. 3 is another example embodiment of the upper part of FIG. 2 is another example embodiment in the lower part of FIG.

Explanation of symbols

1 heat exchanger 10 receiver 12 first collector tube 14 tube fin block 16 14 tube 18 14 fin 20 first tube 22 first molded part 24 10 first end 26 10 upper end 28, 30 overflow Duct or overflow opening 32, 36 Cap element 34 Ring holder 38 O-ring 40 22 interface 42 Groove 44 Inclination 46 Attached portion 60 12 Protruding portion 62 10 Protruding portion 64 Dryer cartridge 66 Dryer 68 Removable notch 70 Slit 72 Lock ring 80 Second molded portion 80a Hole 86 drilled in second molded portion 82, 84 80 First collector tube rim hole 88 First collector tube rim hole 90 Lid 92 80 Outer surface area 94 12 or 90 outer surface area

Claims (43)

A receiver dryer component for a refrigerant condenser of a heat exchanger, especially a vehicle air conditioner,
A receiver and a replaceable dryer mounted in the receiver, the receiver having a jacket wall extending about its long axis, the jacket wall having at least one first longitudinally extending wall; The receiver is formed in a portion of a tube, the receiver comprising at least one intake opening for a fluid, such as a refrigerant, and at least one discharge opening for the fluid, the discharge opening being the receiver's It is arranged at the end facing the first axial end, and the receiver has a take-out opening for replacing the dryer at the second axial end opposite to the first end, and A removable cap for the extraction opening is in the range of the second end;
A first molded part for an adapter device or a removable cap is provided on the opposite side of the first tube from the first end, the removable cap being held here in a locked state. A heat exchanger characterized by that.   The component according to claim 1, wherein an end of the adapter device or the first molded part is inserted into one end of the first tube or is placed on one end of the first tube. The component to be.   Component according to any one of the preceding claims, characterized in that the adapter device or the first molded part is glued directly to the first tube, in particular by brazing or welding. component.   A component according to any one of the preceding claims, wherein the adapter device or the first molded part extends around the long axis of the receiver, a part of the jacket wall of the receiver, in particular a second of the jacket wall. A component, characterized in that it forms an end arranged at the end.   The component according to any one of the preceding claims, wherein the first molded part or the adapter device is formed in a tube shape or a ring shape.   A component according to any one of the preceding claims, wherein the first molded part is an extruded part.   The component according to any one of the preceding claims, wherein the wall thickness of the first tube is substantially constant.   The component according to any one of the preceding claims, wherein the adapter device or the first molded part is a separate part from the first tube.   The component according to any one of the preceding claims, wherein a part or the whole of a cross section of the inner surface of the first molded portion viewed from a direction perpendicular to the major axis direction is circular. Feature, component.   A component according to any one of the preceding claims, wherein the (inner) circumferential dimension of the cross section perpendicular to the major axis direction of the inner surface of the first molded part varies along this major axis. Feature, component.   A component according to any one of the preceding claims, characterized in that the first molded part is provided with at least one groove for mounting a lock ring.   12. A component according to claim 11, wherein a removable lock ring is arranged in the groove, whereby the cap element is blocked in a direction opposite to the first end of the component. A component characterized by that.   A component according to any one of the preceding claims, wherein the cap element is formed as a screw cap and is screwed onto the thread of the adapter device or the first molded part so that the cap of the receiver is removable. A component, characterized in that it can be locked.   A component according to any one of the preceding claims, wherein the component is removably held against at least one sealing device, in particular against the first molded part or adapter device or against the first tube. A component, characterized in that it comprises at least one sealing device for sealing a cap.   A component according to any one of the preceding claims, characterized in that the cap and / or the first molded part or adapter device is provided with at least one groove for mounting an O-ring.   A component according to any one of the preceding claims, wherein at least one O-ring is held in one groove or any one groove of the cap, and the O-ring and the first molded part or adapter. Component, characterized in that it is sealed by working with a part of the surface of the device and / or the first tube, in particular with a part of the inner surface.   A component according to any one of the preceding claims, characterized in that the length of the first molded part in the longitudinal direction of the receiver is short, in particular shorter than the first tube.   The component according to claim 1, wherein the first molded part is formed in a circular shape.   A component according to any one of the preceding claims, characterized in that the wall thickness of the first molded part is thicker than the wall thickness of the first tube.   The component according to any one of the preceding claims, wherein the first molded part is provided with a thread for fitting a cap with a thread and / or a groove for attaching a lock ring, A component, characterized in that the remaining wall thickness, which has been reduced by this thread recess or groove, is equal to or greater than the wall thickness of the first tube.   A component according to any one of the preceding claims, characterized in that a fluid intake opening is arranged at the end facing the first axial end of the receiver.   A component according to any one of the preceding claims, wherein the receiver intake or discharge opening is formed as a rim hole, in particular protruding outwardly, and these rim holes in particular form at least part of the overflow duct. A component characterized by forming.   Component according to any one of the preceding claims, characterized in that the receiver intake or discharge opening is preferably provided with an outer contact surface in the form of a ring for the shape of protruding outwards. component.   24. A component according to any one of claims 22 and 23, wherein a protruding portion or rim hole is provided in the first tube.   Component according to any one of the preceding claims, characterized in that a second molded part, preferably extruded, is provided at the end of the receiver, facing the first end of the receiver. Component.   26. The component according to claim 25, wherein the second molded part is provided with a receiver intake opening and / or a discharge opening, each of which is formed in particular as a hole in the jacket wall. A component that is characterized by   27. Component according to any one of claims 25 and 26, characterized in that the second molded part is bonded directly to the first tube, for example by brazing adhesion or the like.   28. Component according to any one of claims 25 to 27, wherein the second molded part is locked in the region of the end opposite the second end of the receiver, in particular by a removable cap. A component characterized by being locked.   A component according to any one of the preceding claims, wherein a fluid strainer device is mounted in the receiver, preferably the strainer device forms a component together with a dryer cartridge. Features a component.   A heat exchanger comprising the receiver-dryer component according to any one of the preceding claims, particularly a refrigerant condenser for a vehicle air conditioner. A heat exchanger according to claim 30, wherein
The heat exchanger comprises a tube block or tube / fin block, comprising a plurality of tubes at least partially substantially parallel and possibly fins disposed between the tubes, the first end. Is attached to the first collector tube, and a receiver is disposed in parallel with the first collector tube, the first collector tube having at least two openings, of these openings. One is assigned to the receiver intake opening and the other is assigned to the receiver discharge opening, so that an overflow opening or overflow duct is formed, and fluid or refrigerant is drawn from the first collector tube. A heat exchanger characterized in that it can flow to the receiver and vice versa.   32. A heat exchanger according to claim 31, wherein a second collector tube is provided, the second collector tube being attached to the second end of the tube of the tube block or tube / fin block. A heat exchanger, characterized in that   33. A heat exchanger according to any one of claims 30 to 32, wherein the first collector tube has a shell-like lid and a shell that is glued to it, in particular brazed or welded. The first collector tube jacket wall is formed by the interaction between the lid and the bottom, and the bottom of the tube block or the tube of the tube / fin block is formed on the bottom. An opening for attaching one tube end, in particular, a slit is provided.   34. A heat exchanger according to any one of claims 30 to 33, wherein the first collector tube is provided with rim holes projecting inwardly or outwardly to form openings, these A heat exchanger, characterized in that the rim hole is assigned to the intake opening or the discharge opening of the receiver.   35. A heat exchanger according to any one of claims 30 to 34, wherein the rim hole of the first collector tube is telescopically fitted into the rim hole of the receiver, thereby forming an overflow opening or overflow duct A heat exchanger characterized by:   36. A heat exchanger as claimed in any one of claims 30 to 35, wherein the rim hole of the first collector tube and the rim hole of the receiver are each directed outward to form an overflow opening or overflow duct. The heat exchanger is characterized in that the front surfaces of the rim holes are arranged so as to abut each other, and the front surfaces of the rim holes that abut each other preferably have substantially the same shape and dimensions.   37. A heat exchanger according to claim 36, wherein the rim holes, whose front faces are butted against each other, are surrounded radially outward by a common sleeve, or in a radially inner common sleeve, in particular A heat exchanger characterized by being stored in contact.   38. A heat exchanger according to any one of claims 30 to 37, wherein an outer contact is made with the first collector tube to form an opening assigned to the intake opening or the receiver discharge opening. A heat exchanger, characterized in that the surface is preferably ring-shaped and comprises a part formed towards the outside.   39. A heat exchanger as claimed in any one of claims 30 to 38, wherein the first collector tube is provided with collars each projecting outwardly and forming a single opening. , Fitted into an overflow opening or overflow duct to form a receiver intake or discharge opening, the receiver intake and / or discharge opening preferably being in the second molded part A heat exchanger characterized by being arranged.   40. A heat exchanger according to any one of claims 30 to 39, wherein the second molded part is provided with an outer surface area facing the first collector tube, the surface area being A heat exchanger characterized in that it is formed in an arcuate shape in accordance with the shape of the outer surface area of the collector tube, these outer surface areas being in contact with each other.   41. A heat exchanger according to any one of claims 30 to 40, characterized in that the receiver and the first collector tube are spaced apart from each other by a slit.   A heat exchanger according to any one of claims 30 to 41, provided with a holding element, in particular formed as a ring holder, in the area of the second end of the receiver, A heat exchanger characterized in that the receiver is held in the first collector tube and optionally forms an end cover for the first collector tube.   43. The heat exchanger according to claim 42, wherein the ring holder sandwiches the receiver in a ring-shaped or partial ring-shaped part.

Images