JP2007501371A - Heat exchanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat exchange device inexpensive in terms of manufacturing.
A heat exchange device, in particular an automotive heat exchange device, comprising at least one distribution mechanism (7) and at least one assembly and / or distribution mechanism (1), wherein the assembly and / or The dispensing mechanism (1) forms at least two molded parts (2, 3), the molded parts form at least two flow paths (5, 6) for the fluid, and the molded parts (2, 3) are at least 3 Heat exchange device characterized by surface contact in two areas.
[Selection] Figure 2

Description

  The invention relates to a heat exchange device, in particular a heat exchange device for motor vehicles, comprising at least one distribution mechanism and at least one assembly and / or distribution mechanism, wherein the assembly and / or distribution mechanism is at least two shaped The present invention relates to a heat exchange device that forms a part and the molded part forms at least two flow paths for the fluid.

  Such heat exchange devices, for example for automobile air conditioners, are known from the state of the art.

  In the prior art, these devices have a number of flat tubular flow mechanisms for the refrigerant, and an assembly and / or distribution mechanism is arranged at the end of the flow mechanism. In that case, it is known that a number of distribution mechanisms are arranged in substantially two mutually parallel planes. For this purpose, the assembly and distribution mechanism has two flow paths separated from each other. These flow paths are realized in the state of the art through a flow coupling between both flow paths. As a problem that arises in this context, this is on the one hand relatively expensive to manufacture, and on the other hand, the heat exchange devices known from the state of the art cannot withstand the high pressures that are partially required.

  Therefore, an object of the present invention is to provide a heat exchange device that is cheaper in terms of manufacturing than the conventional technology.

  This is achieved according to the invention by the molded part making surface contact in at least three zones. Advantageous embodiments and configurations are the subject of the dependent claims.

Embodiment of the Invention

  The heat exchange device according to the invention has at least one distribution mechanism, preferably a number of distribution mechanisms and at least one assembly and / or distribution mechanism. In so doing, the assembly and / or distribution mechanism has at least two molded parts and, in some cases, preferably also has at least one or two limiting elements. The molded part then forms at least two flow paths for the fluid.

  In one embodiment, the assembly and / or distribution mechanism preferably has one transition region in at least one section, which transition region at least partly connects the at least two flow paths of the assembly and / or distribution mechanism to each other. Join. In doing so, the molded part makes surface contact in at least three zones.

  The molded part is a modular unit having a predetermined shape.

  Within the framework of the present invention, a limiting element is an element or mechanism that serves to limit or limit other mechanisms such as, for example, an assembly and / or distribution mechanism.

  Coupled to each other is a bond that allows liquid and / or gaseous fluids, such as refrigerants, to flow through the bond. Surface contact is not only that the contacts appear as dots in individual regions, but also in continuous regions, for example along lines with a finite width.

  In a preferred embodiment, the molded part is manufactured from one material selected from the group of materials including aluminum, aluminum alloys, iron, iron alloys, bronze, copper, copper alloys and the like.

  In another preferred embodiment, the molded part is substantially mirror symmetric along at least one longitudinal axis. This means that the molded part is substantially mirror-symmetric with respect to one plane containing the longitudinal axis in geometric terms. What is being discussed is a plane that is substantially perpendicular to the plane spanning both flow paths. Substantial mirror symmetry is that small irregularities, or protrusions and recesses, are not considered when considering symmetry.

  In another preferred embodiment, the contacting areas are spatially separated from one another. In another preferred embodiment, at least one molded part has edge projections, which at least partly secure one second molded part in at least one predetermined position. In this case, preferably the second molded part can have recesses, into which the projections engage. The projections then serve to fix both molded parts together, and the pre-fixed position is then finally fixed in another step.

  In another preferred embodiment, the assembly and / or dispensing mechanism has at least one inner molded part and one outer molded part. This is understood to mean that one molded part engages or contacts at least one section of the inner wall of the second molded part within at least one section of its outer wall during assembly or pre-fixation. This is explained below in connection with the figures.

  In another preferred embodiment, the individual molded parts can also have holes that also serve for pre-fixation. The holes are then preferably arranged in such a way that, for example, a substantially longitudinal object can be inserted into both holes and thus the molded parts are fixed to one another.

  In another preferred embodiment, the restricting element closes at least one flow path of the collecting tube in a gas-tight and / or liquid-tight manner. That is, liquid and / or gas cannot substantially flow beside the restricting element.

  In another preferred embodiment, the molded part has recesses for at least partially receiving the flat tubes, these recesses having a predetermined angle with respect to the main expansion direction of the collecting tube. The recesses can then have any geometric cross section, for example rectangular, elliptical, general polygonal or a mixture thereof. Alongside that, the recess can have an additional shaped part which serves as an introduction ramp for a flat tube, for example. The predetermined angle of each flow mechanism or flat tube is 0 ° to 90 °, preferably 0 ° to 30 °, particularly preferably 0 ° to 10 °.

  In another preferred embodiment, the transition region that at least partially couples the flow paths of the collecting pipes together is any selected from a group of cross sections having a polygonal shape, a circular shape, an elliptical shape or a mixed shape of these cross sections. Having a geometric cross section of

  In another preferred embodiment, the molded part has at least three bonded areas, and within the bonded area, at least two molded parts are bonded in a friction bonded, shape bonded and / or material bonded fashion. This is preferably the area where the molded part is in surface contact.

  In another preferred embodiment, the flow path of the collecting pipe has a shape such as a substantially circular shape, a drop shape, a polygonal shape, an elliptical shape or a mixed shape thereof in cross section.

  In another preferred embodiment, the joining area of the molded part is at least partly insulated between the flow paths.

  In another preferred embodiment, within the region of the transition region, the joining region of the molded parts is interrupted between the flow paths.

  In another preferred embodiment, the molded part has a substantially W-shaped or ω-shaped cross-section.

  Preferably, the ridges inside one flow path are at least partially chamfered.

  In another preferred embodiment, the transition region is turned at a predetermined angle with respect to the longitudinal axis of the assembly or distribution mechanism in at least one section. This angle is 0 ° to 90 °, preferably 15 ° to 75 °, particularly preferably 30 ° to 60 °, in particular about 45 °. This means that the flow direction of the refrigerant extends at a predetermined angle with respect to the longitudinal axis in this area.

  In another preferred embodiment, the molded part has recesses in at least the limiting element receiving areas, and the limiting elements are at least partially engaged in these recesses. The limiting element can preferably be pushed substantially into these recesses.

  In another preferred embodiment, a number of distribution mechanisms are extended between two assembly and / or distribution mechanisms. Preferably, the multiple flow mechanisms are then arranged in at least two substantially parallel planes. However, it is within the scope of the present invention to arrange a number of distribution mechanisms in three or more substantially parallel planes.

  In another preferred embodiment, a large number of flat tubes are arranged in at least one collecting and / or distributing mechanism, and at least two flow paths of the collecting and / or distributing mechanisms are connected to each other by a number of flow mechanisms or flat tubes. Pressure coupled. For this purpose, the flow mechanism has at least one bent or curved area. In this embodiment, preferably only a total of two sets and / or distribution mechanisms are provided.

  Within the preferred embodiment, the flow path is insulated by at least one partial recess in the joint area of the molded part between the flow paths. However, this recess can also extend along substantially the entire length of the assembly and / or distribution mechanism.

  In another preferred embodiment, the surface of the molded part and / or member of the device is coated with wax.

  The invention is further directed to a method for manufacturing a heat exchange device, in particular for motor vehicles, having at least one flow mechanism or flat tube and at least one assembly and / or distribution mechanism.

  In that case, in a first step, the molded parts are assembled into one assembly and / or dispensing mechanism and subsequently fixed. Thereafter, in the other steps, the remaining members are assembled and fixed. Finally, the molded parts and / or members are joined together in a material joining manner.

  Preferably, the fixing of the molded part is caused by molding the projections of at least one molded part.

  The present invention is further an apparatus for air-conditioning air sent into a passenger compartment of an automobile, comprising at least one compressor, one evaporator, one expansion valve, and one cooler. One evaporator and / or cooler is directed to one having one device of the above type.

  Other advantages and embodiments of the present invention will become apparent from the accompanying drawings.

  In FIG. 1, reference numeral 1 designates one assembly and / or distribution mechanism for a heat exchange device according to the present invention.

  This assembly and / or dispensing mechanism has one first molded part 2, in this case with one bottom, one second molded part 3 and one lid. Hereinafter, the first molded part 2 is referred to as a bottom, and the second molded part 3 is referred to as a lid.

  Reference numeral 4 denotes a joining plate attached to the lid 3 and serves to pre-fix at the bottom. In this embodiment, the bottom is on the inside and the lid is on the outside. However, conversely, the bottom can be the outside and the lid can be the inside. It is also possible to arrange the joining plate on the bottom instead of the lid, or a part of the joining plate on the lid and the other part on the bottom.

  A receiving portion or receiving mechanism 7 for receiving the flow mechanism or the flat tube 8 is provided on the bottom 3. These receiving mechanisms can have any shape, preferably adapted to the geometry of the flow mechanism. The rotation of the end section 9 of the flow mechanism 8 serves as a tube stop. But this is not essential. Reference numeral 13 denotes a punched or recessed portion of the bottom 2 and / or the lid 3, which is useful for thermal separation. Reference numeral 11 denotes a transition passage or joint between the left flow path and the right flow path in FIG. It is the septum 10 that serves to close the assembly and / or dispensing mechanism.

  FIG. 2 shows a cross section of the assembly and / or distribution mechanism of FIG. Reference numerals 5 and 6 are flow paths of both the collecting and / or distributing mechanism and have a predetermined hydraulic diameter. The bottom 2 and the lid 3 are in surface contact in three regions in the figure shown here, that is, at the center along the line written vertically and at the right and left edges in FIG. Reference numeral 4 is a protrusion or a joining plate that serves to pre-fix the bottom to the lid.

  FIG. 3 shows a bottom 2 for a heat exchange device according to the invention. In this case, a punching part 13 and a transition region 11 for thermal separation are shown. Here, the punched portion is not provided along the entire length of the bottom, but only in the region between one end of the bottom and the coupling portion 11. Especially in this region, thermal separation is of particular importance. This is because the temperature of the refrigerant changes very rapidly during circulation in this region after the supply of the refrigerant.

  FIG. 4 shows the lid 2 of FIG. 3 in plan view to reveal the geometric shape. In this embodiment, the transition region is arranged at an angle of 45 ° with respect to the longitudinal direction of the lid and thus the assembly and / or dispensing mechanism.

  Here, the receiving mechanism for the flow mechanism is vertically shaped, and the vertical direction is substantially parallel to the vertical direction of the bottom.

  FIG. 5 is a sectional view taken along line AA in FIG. In particular, the transition area 11 is shown. The transition region 11 is formed by a corresponding molding on the bottom 14. Reference numeral 7 denotes a receiving mechanism for a distribution mechanism.

  FIG. 6 shows a lid mechanism 3 for a heat exchange device according to the present invention. Reference numeral 4 denotes a protrusion or a joining plate, which serves to be fixed in advance by the bottom mechanism 2. Reference numeral 12 denotes two partition walls, which are arranged in both flow paths and serve to prevent the flow of refrigerant along the longitudinal direction of the collecting and / or distributing mechanism. Another partition 10 is arranged at the end of the assembly and / or distribution mechanism.

  FIG. 7 is a cross-sectional view of FIG. 6 along the line AA. The lid 3 also has one recess or molding 15 in the area of the transition area.

  FIG. 8 shows a heat exchange apparatus according to the present invention in order to specifically show the flow path of the refrigerant. The refrigerant reaches a region 16 of the collecting and / or distributing mechanism 1 through a supply unit (not shown). Within this region, the refrigerant can be distributed between the lower end of the collecting and / or distributing mechanism and the partition wall 12. The refrigerant preferably reaches the lower assembly and / or the distribution mechanism 1a or its region 17a via the flow mechanism 8 in which the cooling fins 38 are arranged. The refrigerant can then be distributed along the entire length of the lower assembly and / or distribution mechanism or along the right flow path or region 17a shown.

  The refrigerant then flows into the upper collection and / or region 18 of the distribution mechanism 1 via the flow mechanism 8. From there, the refrigerant reaches the area 19 of the collection and / or distribution mechanism 1 via the transition region 11. This area extends substantially between the left partition 12 and the lower end of the assembly and / or dispensing mechanism 1 in the figure. From there, the fluid reaches the region 17b shown on the left side in the drawing of the assembly-distribution mechanism 1 through the flow mechanism 8. Here the fluid can again be distributed along the entire flow path, ie the longitudinal direction of the collecting-distributing mechanism. Finally, the refrigerant reaches the zone 20 via the circulation mechanism 8 and is finally discharged from the heat exchange device via a discharge pipe (not shown).

  FIG. 9 shows another possibility for guiding the medium, ie the refrigerant, inside the heat exchange device. In this case, the apparatus first flows completely through the lower region, ie all the flow mechanisms, in both planes below the separation part 12. Finally, the refrigerant is sent into the upper region of the apparatus via the coupling portion 11 and continues to pass through the upper region of the entire apparatus again.

  For this purpose, the assembly and / or distribution mechanism 1 ′ shown in FIG. 9 also has a partition (not shown).

  FIG. 10 shows a heat exchange device according to the present invention in another preferred embodiment.

  In this embodiment, the device only has one assembly and / or distribution mechanism 1 with two flow paths. The distribution mechanism 8 has one curved region 8a. Here, the refrigerant flows from the flow path shown on the right side of the figure into the flow path on the left side. This device has partitions (not shown), which are located at 33 and 34. In addition, a transition region 11 is provided, which transition region joins both flow paths together. The transition of the refrigerant in the apparatus shown in FIG. 10 corresponds to that in FIG.

  FIG. 11 shows another plan view of the assembly and / or distribution mechanism. In this embodiment, the receiving mechanism is not arranged parallel to the longitudinal direction of the assembly and / or distribution mechanism 1 but at a predetermined angle with respect to the longitudinal direction. Reference numeral 13 is a recess which serves to thermally isolate the regions 5, 6 of both the assembly and / or distribution mechanism 1. The lid has a protrusion 4 that serves to pre-fix the lid mechanism to the bottom.

  FIG. 12 is a detailed view of the heat exchange apparatus according to the present invention. Here, the receiving mechanism 7 is substantially again parallel to the longitudinal direction of the assembly and / or dispensing mechanism 1.

  FIG. 13 is a sectional view taken along line AA in FIG. It can be seen that the recess 7 is lowered with respect to the bottom 2.

  FIG. 14 is a cross-sectional view of the assembly and / or distribution mechanism according to FIG. 12 along the line BB. At that time, the real W-shaped or Ω-shaped modeling at the bottom is effective.

  FIG. 15 shows, for example, the assembly and / or distribution mechanism 1a according to FIG. 8, where the lid and the bottom are separated from one another in order to make the inside visible. A plurality of insertion mechanisms 44 are provided, and the partition wall 12 can be inserted into these insertion mechanisms. Reference numeral 10 denotes a closing mechanism for closing the heat exchange device on the lower side and the upper side.

  FIG. 16 is a view of an embodiment of the heat exchange device according to the present invention as viewed from the interior space. In this case, reference numerals 21, 22, 23, and 24 denote various flow areas of the distribution mechanism. At that time, the partition 12 divides the regions 23 and 24 or 21 and 23. Reference numeral 25 denotes a protrusion useful for forming the transition region 11, and the coolant can be guided between the regions 21 and 22 along the transition region. The device can also have one or more such transition regions. In so doing, device 25 and device 25 'cooperate to cause actual guidance of the refrigerant. This device can have any cross-section as already mentioned above, or it can have any angle with respect to the flow passages or regions 21, 22, 23, 24. However, in another preferred embodiment, such protruding parts 25, 25 'for flow coupling can be placed only on either the lid or the bottom. It is also possible to produce a flow coupling such that two parallel partitions with holes are inserted into the assembly and / or distribution mechanism.

  In a preferred embodiment, a flat lid and bottom extending perpendicular to all contact surfaces are arranged mirror-symmetrically with each other.

  Furthermore, it is also possible to pass the refrigerant through the heat exchange device in another way, i.e. to provide a plurality of transition regions or to provide a plurality of flow paths arranged in the front and back. The distribution mechanism could be arranged on three or more parallel planes. Distribution for heat exchange can be done from top to bottom or from bottom to top.

  Both the supply and discharge of the refrigerant can be arranged either in one collection and / or distribution mechanism or in a different collection and / or distribution mechanism.

  17 to 19 show other embodiments, and FIG. 17 shows a cross-sectional view of one collecting-distributing mechanism 100 such as a collecting pipe. In this case, the assembly-distribution mechanism 100 is composed of two molded parts 101 and 102, and both molded parts are in contact with each other on at least three surfaces and the mating surface. Two passages 103, 104 are formed between both molded parts 101, 102. A partition wall 110 is inserted into the groove of the molded part 101 and / or 102 to induce or block fluid flow within the collection-distribution mechanism. In this case, one molded part 101 encloses the other molded part 102 at least partly by its end region or by joining plates 105, 106 arranged or molded in this end region.

  Further, the molded part 101 is provided with grooves, and the ends of the pipes are fitted into these grooves for fluid communication with the internal space of the assembly-distribution mechanism. The ends of the tube 120 are fitted into these grooves or holes, so that the ends are twisted and inserted vertically into the grooves.

  FIG. 18 is a view of the embodiment of FIG. The tube end 121 is inserted into a vertically aligned groove. The transition from one passage 130 to another 131 is effected by a substantially laterally extending passage 140, each vertically extending passage being blocked by two partitions 141, 142.

  FIG. 19 is a cross-sectional view of a corresponding collecting pipe. The passage as the overflow region 140a is formed by at least one bulging portion of both molded parts of the collecting-distributing mechanism. Or it can be provided in either of the molded parts, and two reinforcing partition walls 141a and 142a for blocking the vertical passage are provided.

1 is a partial view of a first embodiment of a heat exchange device according to the present invention. FIG. 3 is a cross-sectional view of the assembly and / or distribution mechanism according to the present invention. 1 shows a molded part for a heat exchange device according to the present invention. FIG. 4 is a plan view of a molded part for a heat exchange device according to the present invention shown in FIG. FIG. 5 is a cross-sectional view taken along line AA in FIG. 4. It is a figure of the other molded component for the heat exchange apparatus which concerns on this invention. It is sectional drawing along the AA line of FIG. It is a fragmentary view of the heat exchange device concerning the present invention. It is another partial figure of the heat exchange apparatus which concerns on this invention. 3 shows another embodiment of the heat exchange device according to the present invention. It is a fragmentary view of the molded component of other embodiment. FIG. 12 is another partial view of the molded part according to FIG. 11. It is sectional drawing along the AA line of FIG. It is sectional drawing along the BB line of FIG. FIG. 4 is an exploded view of a collection and / or distribution mechanism for a heat exchange device according to the present invention. 4 shows another embodiment of a collection and / or distribution mechanism for a heat exchange device according to the present invention. 3 shows another embodiment of the present invention. 3 shows another embodiment of the present invention. 3 shows another embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Assembly and / or distribution mechanism 2 1st shaping | molding component 3 2nd shaping | molding component 5, 6 Flow path 7 Receiving mechanism 8 Distribution mechanism or flat tube 9 Terminal area 10, 12 Partition 11 Transition area | region 21, Connection part 21, 22, 23, 24 Flow region 25, 25 'Protrusion part 38 Cooling fin 44 Insertion mechanism 100 Assembly-distribution mechanism 101, 102 Molded part 103, 104 Passage 105, 106 Joint plate 121 Pipe end 141, 142 Partition

Claims (25)

  A heat exchange device, in particular a heat exchange device for motor vehicles, comprising at least one distribution mechanism (7) and at least one assembly and / or distribution mechanism (1), wherein the assembly and / or distribution mechanism (1 ) Form at least two molded parts (2, 3), the molded parts form at least two flow paths (5, 6) for the fluid, and the molded parts (2, 3) are within at least three zones. A heat exchange device characterized by surface contact.   Heat exchange device, in particular a heat exchange device for motor vehicles, comprising at least one distribution mechanism (7) and at least one assembly and / or distribution mechanism (1), the assembly and / or distribution mechanism (1) Having at least two molded parts (2, 3) and optionally at least one or two restricting elements, the molded parts forming at least two flow paths (5, 6) for the fluid, The distribution mechanism has at least one transition region (12) in at least one section, which transition region at least partly couples the flow paths (5, 6) of the assembly and / or distribution mechanism together A heat exchange device characterized in that (2, 3) are in surface contact in at least three zones.   At least the molded part (2, 3) is manufactured from one material selected from the group of materials having aluminum, aluminum alloy, iron, iron alloy, bronze, copper, copper alloy, etc., The apparatus according to claim 1 or 2.   Device according to at least one of the preceding claims, characterized in that the molded part (2, 3) is substantially mirror-symmetrical along at least one longitudinal axis.   Device according to at least one of the preceding claims, characterized in that the contacting areas are spatially spaced from one another.   At least one molded part (3) has marginal projections (4), these projections at least partially fixing one second molded part (2) in at least one predetermined position, Device according to at least one of the preceding claims.   Device according to at least one of the preceding claims, characterized in that the assembly and / or dispensing mechanism comprises at least one inner molded part and one outer molded part.   Device according to at least one of the preceding claims, characterized in that the restriction element (10) closes at least one flow path of the collecting and / or dispensing mechanism in a gas-tight and / or liquid-tight manner.   The molded part (2, 3) has a receiving mechanism (7) for at least partially receiving the flat tube (8), the receiving mechanism having a predetermined angle with respect to the main expansion direction of the collecting tube; A device according to at least one of the preceding claims.   The molded part (2, 3) has at least three coupling areas, and at least two molded parts are coupled in a friction bonding type, a shape bonding type and / or a material bonding type inside the coupling area. An apparatus according to at least one of the preceding claims.   Device according to at least one of the preceding claims, characterized in that the flow path of the assembly and / or distribution mechanism has a cross-sectional shape that is substantially circular, drop-shaped, polygonal, elliptical, mixed, etc. .   Device according to at least one of the preceding claims, characterized in that the joining area of the molded part is at least partly insulated between the flow paths.   Device according to at least one of the preceding claims, characterized in that in the region of the transition region (11) at least one molded part joining region is interrupted between the flow paths.   Device according to at least one of the preceding claims, characterized in that the molded part (2, 3) has a substantially W-shaped or ω-shaped profile in cross section.   Device according to at least one of the preceding claims, characterized in that at least the edges inside the one flow path (5, 6) are chamfered.   The transition region (11) is arranged with respect to its longitudinal axis by turning a predetermined angle with respect to the longitudinal axis of the collecting tube, this angle being 0 ° to 90 °, preferably 15 ° to 75 °, particularly preferably 30 °. Device according to at least one of the preceding claims, characterized in that it is -60 °, in particular about 45 °.   6. The at least one of the preceding claims, characterized in that the molded part (2, 3) has at least recesses in the restricting element receiving areas, at least partially engaging the restricting elements in these recesses. apparatus.   At least one of the preceding claims, characterized in that a large number of flat tubes (8) extend between two sets and / or distribution mechanisms each having two flow paths (5, 6). The device described.   Device according to at least one of the preceding claims, characterized in that a number of flat tubes (8) are arranged in one collecting tube and at least two flow paths of the collecting tube are hydraulically coupled to one another.   At least one of the preceding claims, characterized in that the heat path is insulated by at least one partial recess (13) in the joining region of the molded part (2, 3) between the flow paths (5, 6) The device according to item.   Device according to at least one of the preceding claims, characterized in that the surfaces of the molded parts and members of the device are coated with wax. A method for producing a heat exchange device, in particular for motor vehicles, having at least one flat tube and at least one collecting tube,
-Assembling the molded parts (2, 3) into one collecting pipe (1);
-Fixing the molded part;
-Assembling and fixing the remaining parts;
A method comprising the step of joining molded parts and components, in particular in a material-joint manner.   23. Method according to claim 22, characterized in that fixing of the molded part is caused by molding the projection (4) of the at least one molded part.   An apparatus for air-conditioning air fed into a passenger compartment of an automobile, comprising at least one compressor, one evaporator, one expansion valve and one cooler, wherein at least one evaporator and / or Or an apparatus in which the cooler is an apparatus according to at least one of claims 1 to 21. 25. A device according to claim 24, characterized in that one housing of the ventilator, the heating device or the air conditioner receives a cooler and possibly has elements such as other air flow paths or air flow control elements.

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