WO2024203171A1 - 熱交換器の製造方法 - Google Patents
熱交換器の製造方法 Download PDFInfo
- Publication number
- WO2024203171A1 WO2024203171A1 PCT/JP2024/009077 JP2024009077W WO2024203171A1 WO 2024203171 A1 WO2024203171 A1 WO 2024203171A1 JP 2024009077 W JP2024009077 W JP 2024009077W WO 2024203171 A1 WO2024203171 A1 WO 2024203171A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- assembly
- fin group
- fins
- flat tubes
- flat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/08—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal
- B21D53/085—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal with fins places on zig-zag tubes or parallel tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
- F28F1/325—Fins with openings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/08—Fins with openings, e.g. louvers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/12—Fins with U-shaped slots for laterally inserting conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/04—Fastening; Joining by brazing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts
- F28F2280/04—Means for preventing wrong assembling of parts
Definitions
- This disclosure relates to a method for manufacturing a heat exchanger.
- Patent Document 1 discloses a heat exchanger equipped with flat heat transfer tubes (flat tubes) and plate-shaped fins.
- the windward portion of each of the multiple heat transfer tubes arranged vertically is inserted into the flat grooves of the upstream flat fins, and the leeward portion is inserted into the flat grooves of the downstream flat fins.
- Patent Document 1 discloses a heat exchanger with a structure in which fin groups are individually arranged on the upwind and downwind sides of flat tubes.
- specific methods for manufacturing a heat exchanger with such a structure have not been fully considered.
- the objective of this disclosure is to manufacture a heat exchanger having flat tubes and two groups of fins.
- a first aspect of the present disclosure is directed to a method for manufacturing a heat exchanger (10) comprising a plurality of flat tubes (20) and a first fin group (41) and a second fin group (42), each of which is composed of a plurality of plate-shaped fins (30), each of which has a plurality of slots (32) having an open end (33) formed at the outer edge of the fin (30), and each of the plurality of flat tubes (20) is inserted into the slots (32) of each of the fins (30) constituting the first fin group (41) and the slots (32) of each of the fins (30) constituting the second fin group (42).
- the manufacturing method of the heat exchanger (10) of this embodiment includes a first step of inserting the flat tubes (20) into the slots (32) of the fins (30) constituting the first fin group (41) to form an assembly (50) consisting of the first fin group (41) and a plurality of the flat tubes (20), and a second step of arranging the second fin group (42) in a position in which the open ends (33) of the slots (32) of the fins (30) constituting the second fin group (42) are positioned on the upper side, arranging the assembly (50) in a position in which the flat tubes (20) are positioned on the lower side, and inserting the flat tubes (20) of the assembly (50) from above into the slots (32) of the fins (30) constituting the second fin group (42).
- the first and second steps are performed.
- the first fin group (41) and the flat tube (20) are combined to form an assembly (50).
- the second fin group (42) is arranged in a position in which the open end (33) of the slot (32) faces upward, and the assembly (50) is arranged in a position in which the flat tube (20) is located on the lower side.
- the flat tube (20) of the assembly (50) is inserted from above into the slot (32) of the fin (30) that constitutes the second fin group (42).
- the flat tube (20), the first fin group (41), and the second fin group (42) are combined.
- the second aspect of the present disclosure is the first aspect, in which, in the first step, the first fin group (41) is arranged in a position in which the open ends (33) of the slots (32) of the fins (30) constituting the first fin group (41) are positioned on the upper side, the flat tubes (20) are inserted from above into the slots (32) of the fins (30) constituting the first fin group (41), and an inversion step is performed before the second step to invert the assembly (50) formed in the first step from a position in which the flat tubes (20) are positioned on the upper side to a position in which the flat tubes (20) are positioned on the lower side.
- the flat tubes (20) are inserted from above into the slots (32) of the fins (30) that make up the first fin group (41).
- an inversion step is performed between the first and second steps.
- the assembly (50) formed in the first step is inverted from a position in which the flat tubes (20) are located on the upper side to a position in which the flat tubes (20) are located on the lower side.
- the third aspect of the present disclosure is the first or second aspect, and in the second step, a pressing member (65) having a flat pressing surface (66) on the lower surface is used, and the pressing surface (66) of the pressing member (65) is brought into contact with the upper outer edge of the fin (30) of the assembly (50) arranged in a position in which the flat tube (20) is located on the lower side, and the assembly (50) is pressed down by the pressing member (65), thereby inserting the flat tube (20) of the assembly (50) from above into the slot (32) of the fin (30) constituting the second fin group (42).
- the assembly (50) is pressed down with a pressing member (65) so that the flat tubes (20) of the assembly (50) are inserted into the slots (32) of the fins (30) that constitute the second fin group (42).
- the fourth aspect of the present disclosure is the third aspect, in which the pressing member (65) used in the second step includes a plurality of pressing blocks (67) whose lower surfaces form the pressing surface (66).
- the assembly (50) is pressed down by a pressing member (65) having a plurality of pressing blocks (67).
- the fifth aspect of the present disclosure is the first or second aspect, wherein the second step includes a straightening step of straightening the deflection of the assembly (50) arranged in a position in which the flat tube (20) is located on the lower side, and in the second step, the flat tube (20) of the assembly (50) in a state in which the deflection has been straightened is inserted from above into the slot (32) of the fin (30) constituting the second fin group (42).
- the assembly (50) in a state where the deflection has been corrected is combined with the second fin group (42). This reduces the possibility that the fins (30) will be crushed by the flat tubes (20) during the process of inserting the flat tubes (20) of the assembly (50) into the slots (32) of the fins (30) that constitute the second fin group (42).
- the sixth aspect of the present disclosure is the fifth aspect, in which the straightening step includes a first straightening step of correcting horizontal deflection of the assembly (50) by clamping the assembly (50) from the horizontal direction.
- the horizontal deflection of the assembly (50) arranged in a position in which the flat tube (20) is located on the lower side is corrected.
- the seventh aspect of the present disclosure is the sixth aspect, in which in the first straightening step, the assembly (50) is clamped from both sides in the arrangement direction of the flat tubes (20) and from both sides in the arrangement direction of the fins (30).
- the assembly (50) is clamped from both sides in the arrangement direction of the flat tubes (20) and from both sides in the arrangement direction of the fins (30). As a result, the horizontal deflection of the assembly (50) arranged with the flat tubes (20) positioned at the bottom is corrected.
- the eighth aspect of the present disclosure is any one of the fifth to seventh aspects, in which the second step uses a pressing member (65) having a flat pressing surface (66) on the lower surface, and the pressing surface (66) of the pressing member (65) is brought into contact with the upper outer edge of the fin (30) of the assembly (50) arranged in a position in which the flat tube (20) is located on the lower side, and the assembly (50) is pressed down by the pressing member (65), thereby inserting the flat tube (20) of the assembly (50) from above into the slot (32) of the fin (30) constituting the second fin group (42), and the straightening step includes a second straightening step in which the assembly (50) is pressed against the pressing surface (66) of the pressing member (65) to straighten the deflection in the vertical direction of the assembly (50).
- the assembly (50) is pressed down with a pressing member (65) so that the flat tubes (20) of the assembly (50) are inserted into the slots (32) of the fins (30) that constitute the second fin group (42).
- the assembly (50) is pressed against the pressing surface (66) of the pressing member (65).
- the ninth aspect of the present disclosure is the eighth aspect, in which in the second straightening step, both ends of the flat tube (20) in the assembly (50) are lifted to press the assembly (50) against the pressing surface (66) of the pressing member (65).
- both ends of the flat tube (20) of the assembly (50) are lifted.
- the assembly (50) is pressed against the pressing surface (66) of the pressing member (65), and the deflection of the assembly (50) in the vertical direction is corrected.
- the tenth aspect of the present disclosure is the eighth aspect, in which in the second straightening step, both ends of the flat tube (20) in the assembly (50) and the middle part in the extension direction of the flat tube (20) are lifted, thereby pressing the assembly (50) against the pressing surface (66) of the pressing member (65).
- the assembly (50) is raised at both ends of the flat tube (20) and at the middle part of the flat tube (20) in the extension direction. As a result, the assembly (50) is pressed against the pressing surface (66) of the pressing member (65), and the deflection of the assembly (50) in the vertical direction is corrected.
- FIG. 1 is a front view of the heat exchanger.
- FIG. 2 is a cross-sectional view of the heat exchanger taken along line AA of FIG.
- FIG. 3 is a plan view of the fin.
- FIG. 4 is a process diagram showing a method for manufacturing a heat exchanger.
- FIG. 5 is a schematic perspective view showing the first fin group in the first step.
- FIG. 6 is a front view of the first fin group and the flat tubes in the first step.
- FIG. 7 is a schematic perspective view of the assembly formed in the first step.
- FIG. 8 is a front view of the assembly formed in the first step.
- FIG. 9 is a front view of the assembly showing the inversion process in the inversion step.
- FIG. 10 is a cross-sectional view showing the CC cross section of FIG.
- FIG. 11 is a plan view of the assembly and the pressing member in the second step.
- FIG. 12 is a plan view of the assembly and the clamping member in the second step.
- FIG. 13 is a plan view of the assembly and the clamping member in the first straightening step.
- FIG. 14 is a cross-sectional view showing the cross section BB of FIG. 13 in the first straightening step.
- FIG. 15 is a cross-sectional view showing the cross section taken along line BB of FIG. 13 in the second straightening step.
- FIG. 16 is a cross-sectional view corresponding to FIG. 10, illustrating the process of moving the assembly downward in the second step.
- FIG. 17 is a cross-sectional view corresponding to FIG.
- FIG. 18 is a cross-sectional view corresponding to FIG. 10, showing the state in which the combination of the assembly and the second fin group is completed in the second step.
- FIG. 19 is a plan view of the first modified example of the embodiment, which corresponds to FIG.
- FIG. 20 is a cross-sectional view of a second modified example of the embodiment, which corresponds to FIG.
- This embodiment is a method for manufacturing a heat exchanger (10).
- the heat exchanger (10) is provided in a refrigerant circuit of an air conditioner that operates in a refrigeration cycle, and exchanges heat between the refrigerant flowing through the refrigerant circuit and air.
- the heat exchanger (10) includes one core (15) and two first header pipes (16, 17).
- the core (15) includes a plurality of flat tubes (20) and a plurality of fins (30).
- the flat tubes (20), the fins (30), and the header pipes (16, 17) are all made of aluminum or an aluminum alloy.
- Each of the two header collecting pipes (16, 17) is an elongated cylindrical member. Note that the shape and structure of the header collecting pipes (16, 17) shown here are merely examples. In the heat exchanger (10) shown in FIG. 1, the first header collecting pipe (16) is disposed on the left side of the core (15), and the second header collecting pipe (17) is disposed on the right side of the core (15).
- the flat tube (20) is a tube having a flat shape whose width is greater than its thickness.
- the cross section of the flat tube (20) perpendicular to its elongation direction is a rectangle with rounded corners or an oval shape with arcs at both ends.
- the flat tubes (20) are arranged such that their extension direction (axial direction) is generally horizontal and their sides along the width direction face each other.
- the flat tubes (20) are also arranged vertically at regular intervals.
- Each flat tube (20) constituting the core (15) has one end inserted into the first header collector pipe (16) and the other end inserted into the second header collector pipe (17).
- Each header collector pipe (16, 17) is joined to the flat tube (20) by brazing.
- the flat tube (20) has a plurality of flow paths (21).
- Each flow path (21) is a straight flow path extending along the elongation direction of the flat tube (20).
- the plurality of flow paths (21) are arranged in the width direction of the flat tube (20).
- Each flow path (21) opens to both end faces of the flat tube (20).
- Each flow path (21) communicates with the internal space of the header collecting pipe (16, 17).
- the fin (30) is a long, thin plate-like member.
- One long side of the fin (30) is a linear continuous edge portion (31) that continues from one end of the fin in the longitudinal direction to the other end.
- the fin (30) has a plurality of slots (32).
- the slots (32) are elongated notches for inserting the flat tubes (20).
- Each slot (32) extends in the short side direction of the fin (30) (a direction perpendicular to the continuous edge portion (31)).
- Each slot (32) opens to the outer edge of the fin (30).
- each slot (32) has an opening end (33) at the outer edge of the fin (30).
- each slot (32) opens to the other long side of the fin (30) (in other words, the long side opposite the continuous edge portion (31)).
- multiple slots (32) are formed at regular intervals from one another in the long side direction of the fin (30) (parallel to the continuous edge portion (31)).
- the number of slots (32) formed in one fin (30) is the same as the number of flat tubes (20) that make up the core (15).
- Each slot (32) is divided into a pipe introduction portion (32a) and a pipe holding portion (32b).
- the pipe introduction portion (32a) is a portion that continues to the open end (33).
- the width (length in a direction parallel to the continuous edge portion (31)) of the pipe introduction portion (32a) gradually increases toward the open end (33).
- the pipe holding portion (32b) is a long and narrow portion that extends in the direction of the short side of the fin (30).
- the width (length in a direction parallel to the continuous edge portion (31)) of the pipe holding portion (32b) is substantially constant.
- the width of the pipe holding portion (32b) is slightly narrower than the thickness of the flat tube (20).
- the fin (30) has a raised portion (34) between adjacent slots (32) to promote heat transfer.
- the shape of the fins (30) constituting the first fin group (41) and the shape of the fins (30) constituting the second fin group (42) may be the same or different.
- the shape of the cut-and-raised portions (34) of the fins (30) constituting the first fin group (41) and the fins (30) constituting the second fin group (42) may be different.
- the core (15) includes a flat tube (20), a first group of fins (41), and a second group of fins (42).
- Each of the first fin group (41) and the second fin group (42) is composed of a plurality of fins (30).
- the number of fins (30) constituting each fin group (41, 42) is preferably the same, but may be different.
- the plurality of fins (30) are arranged facing each other and spaced apart at regular intervals.
- the corresponding slots (32) of each fin (30) are aligned in a row in the arrangement direction of the fins (30).
- the first fin group (41) is disposed in front of the flat tube (20) in FIG. 2.
- Each fin (30) constituting the first fin group (41) is disposed with its continuous edge portion (31) facing forward and the open end (33) of the slot (32) facing rearward.
- the front portion of the flat tube (20) fits into the slot (32) of the fin (30) constituting the first fin group (41).
- the fins (30) constituting the first fin group (41) are joined to the flat tube (20) by brazing.
- the second fin group (42) is disposed on the rear side of the flat tube (20) in FIG. 2.
- Each fin (30) constituting the second fin group (42) is disposed with the open end (33) of the slot (32) facing forward and the continuous edge portion (31) facing rearward.
- the rear portion of the flat tube (20) fits into the slot (32) of the fin (30) constituting the second fin group (42).
- the fins (30) constituting the second fin group (42) are joined to the flat tube (20) by brazing.
- Heat exchanger manufacturing method- A method for manufacturing the heat exchanger (10) having the above-described structure will be described below.
- a core assembling step, a header attaching step, and a joining step are carried out in this order.
- the core assembly process is a process of combining the flat tubes (20), the first fin group (41), and the second fin group (42) to form the core (15).
- the core assembly process will be described in detail later.
- the header attachment process is a process of attaching a first header collector pipe (16) and a second header collector pipe (17) to the core (15) formed in the core assembly process.
- the header attachment process one end of each flat tube (20) constituting the core (15) is inserted into the first header collector pipe (16), and the other end of each flat tube (20) constituting the core (15) is inserted into the second header collector pipe (17).
- the joining process is a process in which the fins (30) and the header collector pipes (16, 17) are joined to the flat tubes (20) by brazing.
- the core (15) to which the header collector pipes (16, 17) are attached is placed in a heating furnace or the like and heated. As a result, the brazing material melts, and the fins (30) and the header collector pipes (16, 17) are joined to the flat tubes (20).
- the core assembly process includes a first process, an inversion process, and a second process, which are carried out in this order.
- the second process includes a straightening process.
- the straightening process includes a first straightening process and a second straightening process.
- the first step is a step of combining the first fin group (41) and the flat tubes (20) to form an assembly (50).
- all of the flat tubes (20) constituting the core (15) are combined with the first fin group (41).
- all of the flat tubes (20) constituting the heat exchanger (10), which is a finished product are combined with the first fin group (41).
- each fin (30) is arranged with its continuous edge (31) facing downward and the open end (33) of the slot (32) facing upward.
- the multiple fins (30) are arranged such that their corresponding slots (32) are aligned in a row in the arrangement direction of the fins (30).
- the fins (30) constituting the first fin group (41) are surrounded by a frame- or tray-shaped member to maintain the orientation shown in FIG. 5.
- the slots (32) of each fin (30) arranged in a row form a slot row (35).
- the first fin group (41) has the same number of slot rows (35) as the number of slots (32) formed in one fin (30).
- flat tubes (20) are inserted one by one into each slot row (35) of the first fin group (41).
- the flat tubes (20) are inserted from top to bottom with the width direction of the flat tubes (20) roughly vertical to the slots (32) that form the corresponding slot row (35) and with the extension direction of the flat tubes (20) aligned along the arrangement direction of the fins (30).
- an assembly (50) is formed in which the first fin group (41) and the flat tubes (20) are combined.
- the assembly (50) is in a position in which the continuous edge (31) of the fin (30) is located on the lower side and the flat tubes (20) are located on the upper side. Note that the cut-and-raised portions (34) of the fins (30) are not shown in Figure 7.
- the inversion step is a step of inverting the position of the assembly (50) formed in the first step.
- the assembly (50) is in a position in which the flat tubes (20) are located at the top.
- the assembly (50) is inverted from a position in which the flat tubes (20) are located at the top to a position in which the flat tubes (20) are located at the bottom.
- the assembly (50) is held by an arm-shaped member (not shown), and the position of the assembly (50) is inverted by rotating this arm-shaped member by 180°.
- the second step is a step of combining the assembly (50) and the second fin group (42) to form the core (15).
- a straightening step is performed to straighten the deflection of the assembly (50), and the assembly (50) in a straightened state is combined with the second fin group (42).
- the fins (30) constituting the second fin group (42) are arranged in the same manner as the fins (30) of the first fin group (41) in the first step (see FIG. 5). Specifically, in the second step, all the fins (30) constituting the second fin group (42) are arranged facing each other at regular intervals. Each fin (30) is arranged with its continuous edge portion (31) facing downward and with the open end (33) of the slot (32) facing upward. The multiple fins (30) are also arranged such that their corresponding slots (32) are aligned in a row in the arrangement direction of the fins (30).
- the second fin group (42) is placed on a flat base member (60).
- the fins (30) constituting the second fin group (42) are surrounded by a frame- or tray-shaped member to maintain the position shown in FIG. 5.
- the slots (32) of each fin (30) lined up in a row form a slot row (35).
- the same number of slot rows (35) are formed as the number of slots (32) formed in one fin (30).
- the assembly (50) that has been subjected to the inversion step is disposed above the second fin group (42).
- the assembly (50) is disposed above the second fin group (42) with the flat tubes (20) located on the lower side. In this state, each flat tube (20) of the assembly (50) faces the slot row (35) of the corresponding second fin group (42).
- the assembly (50) is disposed below the pressing member (65).
- the pressing member (65) is a flat member that covers the entire assembly (50) when viewed from above.
- the lower surface of the pressing member (65) is a flat pressing surface (66).
- the pressing surface (66) faces the continuous edge portion (31) of the fin (30) that constitutes the first fin group (41) of the assembly (50) (see Fig. 10).
- the assembly (50) in the second step, is surrounded by four clamping members (71-74).
- one end of each of the fins (30) constituting the first fin group (41) faces the first clamping member (71) and the other end of each of the fins (30) faces the second clamping member (72).
- one end face of each of the flat tubes (20) faces the third clamping member (73) and the other end face of each of the flat tubes (20) faces the fourth clamping member (74).
- Each of the first clamping member (71) and the second clamping member (72) is a long and thin member extending in the horizontal direction.
- the surface of each of the first clamping member (71) and the second clamping member (72) facing the assembly (50) is a substantially vertical surface.
- the first clamping member (71) is disposed on the left side of the assembly (50) and faces the left end of the fin (30) that constitutes the first fin group (41).
- the second clamping member (72) is disposed on the right side of the assembly (50) and faces the right end of the fin (30) that constitutes the first fin group (41).
- the third clamping member (73) and the fourth clamping member (74) are each elongated members extending in the horizontal direction. As also shown in FIG. 14, the third clamping member (73) and the fourth clamping member (74) each include a clamping portion (73a, 74a) and a support portion (73b, 74b).
- the surface of the clamping portion (73a, 74a) facing the assembly (50) is a substantially vertical surface.
- the support portion (73b, 74b) is a portion that protrudes from the clamping portion (73a, 74a) toward the assembly (50).
- the upper surface of the support portion (73b, 74b) is a substantially horizontal surface.
- the third clamping member (73) is disposed on the front side of the assembly (50).
- the third clamping member (73) has a clamping portion (73a) facing the end face of the flat tube (20) and a support portion (73b) positioned below the end of the flat tube (20) (see FIG. 14).
- the fourth clamping member (74) is disposed on the rear side of the assembly (50).
- the fourth clamping member (74) has a clamping portion (74a) facing the end face of the flat tube (20) and a support portion (74b) positioned below the end of the flat tube (20) (see FIG. 14).
- the first straightening step is a step of straightening the horizontal deflection of the assembly (50) arranged in an orientation in which the flat tubes (20) are located on the lower side.
- the flat tubes (20) inserted into the slot rows (35) of the first fin group (41) are held in the first fin group (41) by frictional force. Therefore, the assembly (50) may bend horizontally due to relative displacement between the first fin group (41) and the flat tubes (20). Therefore, in the first straightening process, the horizontal bending of the assembly (50) is straightened.
- the second clamping member (72) is pressed against the assembly (50).
- the assembly (50) is clamped from both the left and right sides in FIG. 13 by the first clamping member (71) and the second clamping member (72).
- the assembly (50) is clamped from both sides in the arrangement direction of the flat tubes (20) (in other words, the longitudinal direction of the fins (30)) by the first clamping member (71) and the second clamping member (72).
- the pressing member (65) is not shown in FIG. 12 and FIG. 13.
- the third clamping member (73) and the fourth clamping member (74) are each pressed against the assembly (50).
- the assembly (50) is clamped from both the front and rear sides in FIG. 13 by the third clamping member (73) and the fourth clamping member (74).
- the assembly (50) is clamped from both sides in the arrangement direction of the fins (30) (in other words, the extension direction of the flat tubes (20)) by the third clamping member (73) and the fourth clamping member (74).
- the assembly (50) in a position in which the flat tubes (20) are located on the lower side is clamped from both sides in the arrangement direction of the flat tubes (20) by the first clamping member (71) and the second clamping member (72), and is also clamped from both sides in the arrangement direction of the fins (30) by the third clamping member (73) and the fourth clamping member (74).
- the horizontal deflection of the assembly (50) in a position in which the flat tubes (20) are located on the lower side is corrected.
- the second straightening step is a step of straightening out any bending in the vertical direction of the assembly (50) arranged in a position in which the flat tubes (20) are located on the lower side.
- the assembly (50) arranged with the flat tubes (20) positioned on the lower side may bend downward near the center in the arrangement direction of the flat tubes (20) (left-right direction in FIG. 10) due to elastic deformation of the fins (30). Also, the assembly (50) arranged with the flat tubes (20) positioned on the lower side may bend upward.
- each flat tube (20) When the assembly (50) is curved, the width direction of each flat tube (20) is tilted relative to the vertical direction. This makes it impossible to insert the flat tube (20) straight from above into the slot row (35) of the second fin group (42), which may result in the fins (30) of the second fin group (42) being crushed. Therefore, in the second straightening process, the bending of the assembly (50) in the vertical direction is straightened.
- the third clamping member (73) and the fourth clamping member (74) move upward, and the upper surfaces of the support portions (73b, 74b) come into contact with the ends of the flat tubes (20).
- the assembly (50) that is horizontally sandwiched between the four clamping members (71-74) is lifted by the third clamping member (73) and the fourth clamping member (74) and pressed against the pressing surface (66) of the pressing member (65).
- the pressing surface (66) of the pressing member (65) is a flat horizontal surface.
- the assembly (50) is combined with the second fin group (42) in a state in which deflections in the horizontal and vertical directions are corrected.
- the assembly (50) is clamped horizontally by the four clamping members (71-74) and moves downward while being pressed against the pressing surface (66) of the pressing member (65).
- each flat tube (20) of the assembly (50) enters into the corresponding slot row (35) of the second fin group (42).
- the assembly (50) is then pressed further downward by the pressing member (65).
- each flat tube (20) of the assembly (50) enters into the corresponding slot row (35) of the second fin group (42), and the assembly (50) is combined with the second fin group (42).
- a core (15) is formed, which is composed of the flat tube (20), the first fin group (41), and the second fin group.
- a first step and a second step are performed.
- the first fin group (41) and the flat tubes (20) are combined to form an assembly (50).
- the second fin group (42) is arranged in a position in which the open ends (33) of the slots (32) face upward, and the assembly (50) is arranged in a position in which the flat tubes (20) are located on the lower side.
- the flat tubes (20) of the assembly (50) are inserted from above into the slots (32) of the fins (30) constituting the second fin group (42).
- the flat tubes (20), the first fin group (41), and the second fin group (42) are combined.
- the flat tubes (20) are inserted from above into the slots (32) of the fins (30) that make up the first fin group (41). Therefore, the fins (30) of the first fin group (41) arranged as shown in FIG. 5 can be placed on a stable platform-like member, for example, and the flat tubes (20) can be inserted into each slot row (35) of the first fin group (41) in that state. Therefore, when combining the first fin group (41) and the flat tubes (20), the fins (30) of the first fin group (41) can be reliably kept in an aligned position, and the flat tubes (20) can be easily inserted into each slot row (35) of the first fin group (41).
- the assembly (50) formed in the first step of the manufacturing method of this embodiment is in an orientation in which the flat tubes (20) are located on the upper side.
- an inversion step is performed to invert the assembly (50) to an orientation in which the flat tubes (20) are located on the lower side, and then the second step is performed.
- the assembly (50) in a position in which the flat tubes (20) are positioned at the bottom is pressed down by the pressing member (65), so that the flat tubes (20) of the assembly (50) are inserted into the slot row (35) of the second fin group (42).
- the fins (30) of the second fin group (42) arranged as shown in FIG. 5 are placed on a stable base member (60), and the flat tubes (20) of the assembly (50) are inserted from above into the slot row (35) of the second fin group (42).
- each fin (30) of the second fin group (42) can be reliably maintained in an aligned position, and the flat tube (20) can be easily inserted into each slot row (35) of the second fin group (42).
- a straightening step is carried out to straighten the deflection of the assembly (50), and the assembly (50) in a straightened state is combined with the second fin group (42).
- the relative positions of the flat tubes (20) constituting the assembly (50) change from the correct positions when the assembly (50) is not bent. Therefore, when the assembly (50) is bent, the flat tubes (20) of the assembly (50) cannot be accurately positioned above the corresponding slot rows (35) of the second fin group (42). Therefore, when the bent assembly (50) is combined with the second fin group (42), the flat tubes (20) of the assembly (50) are not inserted straight from above into the corresponding slot rows (35) of the second fin group (42), and there is a risk that the fins (30) of the second fin group (42) will be crushed by the flat tubes (20).
- the assembly (50) in a state where the deflection has been corrected is combined with the second fin group (42). Therefore, the flat tubes (20) of the assembly (50) can be inserted straight from above into the corresponding slot rows (35) of the second fin group (42). Therefore, according to the manufacturing method of this embodiment, it is possible to reduce the possibility that the fins (30) of the second fin group (42) will be crushed by the flat tubes (20) when combining the assembly (50) with the second fin group (42).
- the horizontal deflection of the assembly (50) in a position in which the flat tubes (20) are located on the lower side is corrected in the first straightening process
- the vertical deflection of the assembly (50) in a position in which the flat tubes (20) are located on the lower side is corrected in the second straightening process. Therefore, in the second step of the manufacturing method of this embodiment, the assembly (50) in which both the horizontal deflection and the vertical deflection have been corrected can be combined with the second fin group (42). Therefore, according to this embodiment, it is possible to reliably reduce the possibility that the fins (30) of the second fin group (42) will be crushed by the flat tubes (20) when combining the assembly (50) with the second fin group (42).
- the pressing member (65) used in the second step may include a plurality of pressing blocks (67).
- the pressing member (65) shown in Fig. 19 includes two pressing blocks (67).
- the lower surface of each of the two pressing blocks (67) forms a flat pressing surface (66).
- the two pressing blocks (67) are arranged side by side in the arrangement direction of the flat tubes (20) in the assembly (50) (the left-right direction in Fig. 19).
- the pressing surface (66) of the pressing member (65) is larger than the heat exchanger (10) to be manufactured. Therefore, when a pressing member (65) made of a single member is used to manufacture a large heat exchanger (10), the rigidity of the large pressing member (65) needs to be ensured, which may increase the weight of the pressing member (65). Therefore, by configuring the pressing member (65) with multiple pressing blocks (67) as in this modified example, the rigidity of each pressing block (67) can be ensured while the weight of each pressing block (67) can be reduced, thereby reducing the weight of the entire pressing member (65).
- the assembly (50) may be pressed against the pressing member (65) by the third clamping member (73), the fourth clamping member (74), and the intermediate support member (75).
- the intermediate support member (75) is a member extending in a direction perpendicular to the extension direction (front-rear direction in Fig. 20) of the flat tubes (20) constituting the assembly (50).
- the intermediate support member (75) abuts against the center of the extension direction of the flat tubes (20) constituting the assembly (50).
- the intermediate support member (75) moves upward in conjunction with the third clamping member (73) and the fourth clamping member (74), and lifts the assembly (50) together with the third clamping member (73) and the fourth clamping member (74).
- the flat tubes (20) are long, when the assembly (50) is arranged with the flat tubes (20) positioned on the bottom, the flat tubes (20) may bend to a non-negligible extent. In that case, if the ends of the flat tubes (20) are supported by the third clamping member (73) and the fourth clamping member (74) and the center of the flat tubes (20) in the extension direction is supported by the intermediate support member (75), the flat tubes (20) can be straightened in the second straightening step. As a result, even if the flat tubes (20) are long, the bending in the vertical direction of the assembly (50) arranged with the flat tubes (20) positioned on the bottom can be reliably corrected.
- the second fin group (42) arranged below the assembly (50) may be moved upward to insert the flat tube (20) of the assembly (50) into the slot row (35) of the second fin group (42).
- the assembly (50) may be moved downward and the second fin group (42) may be moved upward at the same time to insert the flat tube (20) of the assembly (50) into the slot row (35) of the second fin group (42).
- the assembly (50) and the second fin group (42) arranged below the assembly (50) are brought relatively close to each other, so that the flat tube (20) of the assembly (50) is inserted into the slot row (35) of the second fin group (42).
- the present disclosure is useful for manufacturing methods for heat exchangers.
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Abstract
Description
本実施形態の製造方法によって製造される熱交換器(10)について説明する。この熱交換器(10)は、冷凍サイクルを行う空気調和機の冷媒回路に設けられ、冷媒回路を流れる冷媒を空気と熱交換させる。
二つのヘッダ集合管(16,17)のそれぞれは、細長い筒状の部材である。なお、ここに示すヘッダ集合管(16,17)の形状と構造は、単なる一例である。図1に示す熱交換器(10)では、コア(15)の左側に第1ヘッダ集合管(16)が配置され、コア(15)の右側に第2ヘッダ集合管(17)が配置される。
図2に示すように、扁平管(20)は、厚さよりも幅が長い扁平な形状の管である。この扁平管(20)は、その伸長方向と直交する断面が、角の丸い長方形状、又は両端が円弧となる長円形状である。
図3に示すように、フィン(30)は、細長い板状の部材である。フィン(30)の一方の長辺は、フィンの長手方向の一端から他端まで連続した直線状の連続縁部(31)である。
図1及び図2に示すように、コア(15)は、扁平管(20)と、第1フィン群(41)と、第2フィン群(42)とを備える。
上述した構造の熱交換器(10)の製造方法について説明する。本実施形態の熱交換器(10)の製造方法では、コア組立工程と、ヘッダ取付工程と、接合工程とが順に行われる。
図4に示すように、コア組立工程では、第1工程と、反転工程と、第2工程とが順に行われる。第2工程では、矯正工程が行われる。矯正工程では、第1矯正工程と第2矯正工程とが行われる。
第1工程は、第1フィン群(41)と扁平管(20)を組み合わせて組立体(50)を形成する工程である。第1工程では、コア(15)を構成する扁平管(20)の全てが、第1フィン群(41)と組み合わされる。従って、第1工程では、完成品である熱交換器(10)を構成する扁平管(20)の全てが、第1フィン群(41)と組み合わされる。
反転工程は、第1工程において形成された組立体(50)の姿勢を反転させる工程である。
第2工程は、組立体(50)と第2フィン群(42)を組み合わせてコア(15)を形成する工程である。第2工程では、組立体(50)の撓みを矯正する矯正工程が行われ、撓みを矯正された状態の組立体(50)が第2フィン群(42)と組み合わされる。
第2工程において、第2フィン群(42)を構成するフィン(30)は、第1工程における第1フィン群(41)のフィン(30)と同様に配列される(図5を参照)。具体的に、第2工程では、第2フィン群(42)を構成する全てのフィン(30)が、互いに向かい合う姿勢で、互いに一定の間隔をおいて配列される。各フィン(30)は、連続縁部(31)が下側となり、スロット(32)の開口端(33)が上側になる姿勢で配置される。また、複数のフィン(30)は、それぞれの対応するスロット(32)が、フィン(30)の配列方向に一列に並ぶように配置される。
図10に示すように、第2工程では、反転工程を経た組立体(50)が、第2フィン群(42)の上方に配置される。組立体(50)は、扁平管(20)が下側に位置する姿勢で、第2フィン群(42)の上方に配置される。この状態において、組立体(50)の各扁平管(20)は、対応する第2フィン群(42)のスロット列(35)と向かい合う。
第2工程において、組立体(50)は、押付け部材(65)の下方に配置される。図11に示すように、押付け部材(65)は、上方から見て組立体(50)の全体を覆う平板状の部材である。押付け部材(65)の下面は、平坦な押付け面(66)である。押付け面(66)は、組立体(50)の第1フィン群(41)を構成するフィン(30)の連続縁部(31)と向かい合う(図10を参照)。
図12に示すように、第2工程において、組立体(50)は、四つの挟持部材(71~74)に囲まれる。組立体(50)は、第1フィン群(41)を構成する各フィン(30)の一方の端部が第1挟持部材(71)と向かい合い、各フィン(30)の他方の端部が第2挟持部材(72)と向かい合う。また、組立体(50)は、各扁平管(20)の一方の端面が第3挟持部材(73)と向かい合い、各扁平管(20)の他方の端面が第4挟持部材(74)と向かい合う。
第1矯正工程は、扁平管(20)が下側に位置する姿勢で配置された組立体(50)の水平方向の撓みを矯正する工程である。
第2矯正工程は、扁平管(20)が下側に位置する姿勢で配置された組立体(50)の上下方向の撓みを矯正する工程である。
組立体(50)は、水平方向と上下方向の撓みを矯正された状態で、第2フィン群(42)と組み合わされる。
本実施形態の熱交換器(10)の製造方法では、第1工程と第2工程とが行われる。第1工程では、第1フィン群(41)と扁平管(20)を組み合わせることによって、組立体(50)が形成される。第2工程において、第2フィン群(42)は、スロット(32)の開口端(33)が上向きとなる姿勢で配置され、組立体(50)は、扁平管(20)が下側に位置する姿勢で配置される。第2工程では、第2フィン群(42)を構成するフィン(30)のスロット(32)に対して、組立体(50)の扁平管(20)が上方から挿し込まれる。その結果、扁平管(20)と、第1フィン群(41)と、第2フィン群(42)とが組み合わされる。
本実施形態の製造方法の第1工程において形成された組立体(50)は、扁平管(20)が上側に位置する姿勢となっている。本実施形態の製造方法では、反転工程を行い、組立体(50)を扁平管(20)が下側に位置する姿勢に反転させた後に、第2工程を行う。
本実施形態の製造方法の第2工程では、組立体(50)の撓みを矯正する矯正工程が行われ、撓みを矯正された状態の組立体(50)が第2フィン群(42)と組み合わされる。
本実施形態の熱交換器(10)の製造方法には、下記のような変形例を適用できる。
図19に示すように、第2工程で用いられる押付け部材(65)は、複数の押付けブロック(67)を備えていてもよい。図19に示す押付け部材(65)は、二つの押付けブロック(67)を備える。二つの押付けブロック(67)は、それぞれの下面が平坦な押付け面(66)を構成する。二つの押付けブロック(67)は、組立体(50)における扁平管(20)の配列方向(図19における左右方向)に並んで配置される。
図20に示すように、第2矯正工程では、第3挟持部材(73)と、第4挟持部材(74)と、中間支持部材(75)とによって、組立体(50)を押付け部材(65)に押し付けてもよい。中間支持部材(75)は、組立体(50)を構成する扁平管(20)の伸長方向(図20における前後方向)と直交する方向に延びる部材である。中間支持部材(75)は、組立体(50)を構成する扁平管(20)の伸長方向の中央部に当接する。中間支持部材(75)は、第3挟持部材(73)及び第4挟持部材(74)と連動して上方へ移動し、第3挟持部材(73)及び第4挟持部材(74)と共に組立体(50)を持ち上げる。
上記第2工程では、組立体(50)の下方に配置された第2フィン群(42)を上方へ移動させることによって、組立体(50)の扁平管(20)を第2フィン群(42)のスロット列(35)に挿し込んでもよい。また、上記第2工程では、組立体(50)を下方へ移動させると同時に、第2フィン群(42)を上方へ移動させることによって、組立体(50)の扁平管(20)を第2フィン群(42)のスロット列(35)に挿し込んでもよい。このように、本実施形態の第2工程では、組立体(50)と、組立体(50)の下方に配置された第2フィン群(42)とを相対的に近づけることによって、組立体(50)の扁平管(20)が第2フィン群(42)のスロット列(35)に挿し込まれる。
20 扁平管
30 フィン
32 スロット
33 開口端
41 第1フィン群
42 第2フィン群
50 組立体
65 押付け部材
66 押付け面
67 押付けブロック
Claims (10)
- 複数の扁平管(20)と、それぞれが複数の板状のフィン(30)からなる第1フィン群(41)及び第2フィン群(42)とを備え、複数の上記フィン(30)のそれぞれには、該フィン(30)の外縁に開口端(33)を有するスロット(32)が複数形成され、複数の上記扁平管(20)のそれぞれが、上記第1フィン群(41)を構成する各上記フィン(30)の上記スロット(32)と、上記第2フィン群(42)を構成する各上記フィン(30)の上記スロット(32)とに挿し込まれた熱交換器(10)の製造方法であって、
上記第1フィン群(41)を構成する上記フィン(30)の上記スロット(32)に上記扁平管(20)を挿し込み、上記第1フィン群(41)と複数の上記扁平管(20)からなる組立体(50)を形成する第1工程と、
上記第2フィン群(42)を構成する上記フィン(30)の上記スロット(32)の上記開口端(33)が上側に位置する姿勢で上記第2フィン群(42)を配置し、上記組立体(50)を上記扁平管(20)が下側に位置する姿勢で配置し、上記第2フィン群(42)を構成する上記フィン(30)の上記スロット(32)に上記組立体(50)の上記扁平管(20)を上方から挿し込む第2工程とを含む
熱交換器の製造方法。 - 上記第1工程では、上記第1フィン群(41)を構成する上記フィン(30)の上記スロット(32)の上記開口端(33)が上側に位置する姿勢で上記第1フィン群(41)を配置し、上記第1フィン群(41)を構成する上記フィン(30)の上記スロット(32)に上記扁平管(20)を上方から挿し込み、
上記第1工程において形成された上記組立体(50)を、上記扁平管(20)が上側に位置する姿勢から上記扁平管(20)が下側に位置する姿勢に反転させる反転工程を、上記第2工程の前に行う
請求項1に記載の熱交換器の製造方法。 - 上記第2工程では、下面が平坦な押付け面(66)である押付け部材(65)を用い、上記扁平管(20)が下側に位置する姿勢で配置された上記組立体(50)の上記フィン(30)の上側の外縁に上記押付け部材(65)の上記押付け面(66)を接触させ、上記押付け部材(65)によって上記組立体(50)を押し下げることにより、上記第2フィン群(42)を構成する上記フィン(30)の上記スロット(32)に上記組立体(50)の上記扁平管(20)を上方から挿し込む
請求項1又は2に記載の熱交換器の製造方法。 - 上記第2工程において用いられる上記押付け部材(65)は、それぞれの下面が上記押付け面(66)を構成する複数の押付けブロック(67)を備える
請求項3に記載の熱交換器の製造方法。 - 上記第2工程は、上記扁平管(20)が下側に位置する姿勢で配置された上記組立体(50)の撓みを矯正する矯正工程を含み、
上記第2工程では、撓みを矯正された状態の上記組立体(50)の上記扁平管(20)を、上記第2フィン群(42)を構成する上記フィン(30)の上記スロット(32)に上方から挿し込む
請求項1又は2に記載の熱交換器の製造方法。 - 上記矯正工程は、上記組立体(50)を水平方向から挟み込むことによって上記組立体(50)の水平方向の撓みを矯正する第1矯正工程を含む
請求項5に記載の熱交換器の製造方法。 - 上記第1矯正工程では、上記組立体(50)を、上記扁平管(20)の配列方向の両側から挟み込むと共に、上記フィン(30)の配列方向の両側から挟み込む
請求項6に記載の熱交換器の製造方法。 - 上記第2工程では、下面が平坦な押付け面(66)である押付け部材(65)を用い、上記扁平管(20)が下側に位置する姿勢で配置された上記組立体(50)の上記フィン(30)の上側の外縁に上記押付け部材(65)の上記押付け面(66)を接触させ、上記押付け部材(65)によって上記組立体(50)を押し下げることにより、上記第2フィン群(42)を構成する上記フィン(30)の上記スロット(32)に上記組立体(50)体の上記扁平管(20)を上方から挿し込み、
上記矯正工程は、上記組立体(50)を上記押付け部材(65)の上記押付け面(66)に押し付けることによって、上記組立体(50)の上下方向の撓みを矯正する第2矯正工程を含む
請求項5~7のいずれか一つに記載の熱交換器の製造方法。 - 上記第2矯正工程では、上記組立体(50)における上記扁平管(20)の両方の端部を持ち上げることによって、上記組立体(50)を上記押付け部材(65)の上記押付け面(66)に押し付ける
請求項8に記載の熱交換器の製造方法。 - 上記第2矯正工程では、上記組立体(50)における上記扁平管(20)の両方の端部と上記扁平管(20)の伸長方向の中間部とを持ち上げることによって、上記組立体(50)を上記押付け部材(65)の上記押付け面(66)に押し付ける
請求項8に記載の熱交換器の製造方法。
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| CN202480008621.6A CN120569268A (zh) | 2023-03-31 | 2024-03-08 | 热交换器的制造方法 |
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| JPH03128167A (ja) | 1989-10-13 | 1991-05-31 | Matsushita Refrig Co Ltd | 熱交換器の製造方法 |
| JP2003262485A (ja) * | 2002-03-07 | 2003-09-19 | Mitsubishi Electric Corp | フィンチューブ型熱交換器、その製造方法及び冷凍空調装置 |
| JP2013221713A (ja) * | 2012-04-18 | 2013-10-28 | Mitsubishi Electric Corp | 熱交換器およびヒートポンプ装置 |
| CN205748069U (zh) * | 2016-05-12 | 2016-11-30 | 国电南京自动化股份有限公司 | 一种用于中低温烟气余热回收及利用的换热元件 |
| JP2020169734A (ja) * | 2019-04-01 | 2020-10-15 | 三菱電機株式会社 | 熱交換器コア組立装置 |
| CN112444146A (zh) * | 2019-08-29 | 2021-03-05 | 青岛海信日立空调系统有限公司 | 一种微通道换热器及空调 |
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|---|---|---|---|---|
| CN102192671B (zh) * | 2010-03-16 | 2015-06-03 | 乐金电子(天津)电器有限公司 | 扁管换热器及其装配方法 |
| US10406588B2 (en) * | 2015-06-18 | 2019-09-10 | Hidaka Seiki Kabushiki Kaisha | Apparatus for inserting flattened tubes into heat exchanger fins |
| US10406589B2 (en) * | 2015-07-08 | 2019-09-10 | Hidaka Seiki Kabushiki Kaisha | Apparatus for inserting flattened tubes into heat exchanger fins |
| JP2017172810A (ja) * | 2016-03-18 | 2017-09-28 | 三菱電機株式会社 | フィンチューブ式熱交換器の製造方法及びフィンチューブ式熱交換器 |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH03128167A (ja) | 1989-10-13 | 1991-05-31 | Matsushita Refrig Co Ltd | 熱交換器の製造方法 |
| JP2003262485A (ja) * | 2002-03-07 | 2003-09-19 | Mitsubishi Electric Corp | フィンチューブ型熱交換器、その製造方法及び冷凍空調装置 |
| JP2013221713A (ja) * | 2012-04-18 | 2013-10-28 | Mitsubishi Electric Corp | 熱交換器およびヒートポンプ装置 |
| CN205748069U (zh) * | 2016-05-12 | 2016-11-30 | 国电南京自动化股份有限公司 | 一种用于中低温烟气余热回收及利用的换热元件 |
| JP2020169734A (ja) * | 2019-04-01 | 2020-10-15 | 三菱電機株式会社 | 熱交換器コア組立装置 |
| CN112444146A (zh) * | 2019-08-29 | 2021-03-05 | 青岛海信日立空调系统有限公司 | 一种微通道换热器及空调 |
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| EP4644017A1 (en) | 2025-11-05 |
| EP4644017A4 (en) | 2026-04-01 |
| CN120569268A (zh) | 2025-08-29 |
| JP7564472B1 (ja) | 2024-10-09 |
| JP2024148180A (ja) | 2024-10-18 |
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