WO2011087158A2 - 熱交換器挿通管の掴持体及びその掴持体を用いた熱交換器の製造方法とその装置並びに製造された熱交換器を有する空気調和機及び/又はその室外機 - Google Patents
熱交換器挿通管の掴持体及びその掴持体を用いた熱交換器の製造方法とその装置並びに製造された熱交換器を有する空気調和機及び/又はその室外機 Download PDFInfo
- Publication number
- WO2011087158A2 WO2011087158A2 PCT/JP2011/051374 JP2011051374W WO2011087158A2 WO 2011087158 A2 WO2011087158 A2 WO 2011087158A2 JP 2011051374 W JP2011051374 W JP 2011051374W WO 2011087158 A2 WO2011087158 A2 WO 2011087158A2
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- WO
- WIPO (PCT)
- Prior art keywords
- tube
- heat exchanger
- pipe
- gripping body
- contact member
- Prior art date
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Classifications
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- 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
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- 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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/06—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes in openings, e.g. rolling-in
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- 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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/08—Tube expanders
- B21D39/20—Tube expanders with mandrels, e.g. expandable
Definitions
- the present invention expands the pipe using a pipe gripping body so as to keep the entire length of the pipe inserted into each through hole of the heat dissipating fins of a plurality of superposed heat exchangers substantially the same as before the pipe expansion.
- the outer diameter of the tube is substantially the same as the inner diameter of the gripping body itself or the inner diameter between the abutting members (the inner diameter between the projecting bodies when the projecting body is provided inside the abutting member).
- the expanded portion along the longitudinal direction of the expanded portion mandrel
- the mouth portion of the pipe provided with the pipe expanding portion The tube mouth side of the tube located securely and firmly inside the heat exchanger while reliably preventing deformation and breakage due to interference between the tip of the tube gripping member and the tube abutting member Can be held in the same manner as the tube mouth side of the tube located outside the heat exchanger, and a heat exchanger insertion tube gripping body, and a heat exchanger manufacturing method and apparatus using the gripping body
- the present invention relates to an air conditioner having a manufactured heat
- the one described in the former gazette is a heat constructed by inserting a large number of hairpin tubes 7 through a large number of radiating fins 6 polymerized at a predetermined interval.
- the hairpin portion 7c of the hairpin tube 7 is connected to the tube.
- the mandrel 2 for tube expansion is inserted from the tube opening part 7b of the hairpin tube 7, and the tube opening part 7b side rather than the radiation fin 6 on one end side
- the expanded portion 7d is fixed in the through-hole 9 of the clamp 8 that does not move to the hairpin portion 7c, and the subsequent insertion of the expansion mandrel 2 into the hairpin tube 7 is performed by the clamp body. 8 to fix the hairpin tube 7 fixing part Restrained without moving to the down portion 7c side, a method of performing in a state of being restrained without and moving the fixed portion of the hairpin tube 7 by the hook member 10 to the tube opening 7b.
- the hairpin tube 7 on the tube opening 7 side of the radiating fin 6 in the hairpin tube 7 is fixed in the through hole 9 of the clamp body 8, and this fixed portion is restrained without moving to the hairpin portion 7c side.
- the hairpin tube 7 tries to contract at the time of tube expansion through the insertion of the tube expansion mandrel 2, but since the hairpin portion 7c is also restrained by the hook body 10, the contraction of the hairpin tube 7 is prevented, As a result, the thickness of the hairpin tube 7 is absorbed, and as a result, the contraction of the entire length of the tube after the tube expansion can be minimized.
- the heat exchanger manufacturing method according to the above method has the following problems.
- the tube port portion 7 b of the hairpin tube 7 is fixed in the through hole 9 of the clamp 8, so that it is inserted into the radiating fins 6 in a zigzag manner, for example.
- the number of hairpin tubes 7 is three rows, four rows, and a plurality of rows, the hairpin tubes 7 located on the inner side cannot be fixed by the clamps 8.
- the above problem can be solved by mechanically changing the diameter of the through hole 9 of the clamp 8 by the throttle mechanism.
- the interval between the hairpin tubes 7 is complicated. If it is made up of parts and becomes smaller than the distance between adjacent mechanisms, it cannot be used at all due to the problem of the installation space of the diaphragm mechanism, and in any case, a limit occurs.
- 1c represents a mounting table for the heat exchanger 5 erected on the base 1b.
- a plurality of superposed radiating fins 6 are provided in the heat exchanger 5.
- a plurality of hairpin tubes 7 having a predetermined length are inserted in a row (not shown) in a direction along the surface of the mounting table 1c, and the heat exchanger 5 is mounted above the mounting table 1c.
- a pressing plate 11 for pressing and fixing to the mounting table 1c is provided to be movable up and down.
- Reference numeral 2 denotes a mandrel for tube expansion provided on the apparatus main body 1a in a substantially horizontal state and capable of reciprocating.
- the mandrel for tube expansion 2 is opposed to the mandrel 2 for tube expansion as shown in FIGS. 2 (a) and 2 (b).
- a plurality of tubes that are formed with an inclined surface 3b that is inclined in a direction that expands toward the tube opening 7b side of the tube 7 that is formed, and that are radially expandable / contractible (arrow E) in a direction that intersects the longitudinal direction of the hairpin tube 7.
- a gripping body 3 having a contact member 3f is externally fitted so as to be reciprocally movable, and the inclined surface 3b is formed so as to reach the tip 3o of the tube contact member 3f.
- the male screw portion 3k provided on the other end side opposite to the tube contact member 3f can reciprocate at a predetermined pitch in the longitudinal direction of the hairpin tube 7 through reciprocating means such as a cylinder (not shown).
- the holding body 3d is provided with a male screw portion 3h provided at the other end of a guide tube holding member 3d which can reciprocate (arrow G) via reciprocating means such as a cylinder (not shown).
- a gripper guide cylinder 3c screwed and held through is slidably fitted outside.
- Each of the tube abutting members 3f of the gripping body 3 may be four sheets (for example, six sheets may be used to surround the outer periphery of the mandrel 2 along the longitudinal direction of the tube expansion mandrel 2; The optimum number of sheets may be set according to the diameter.)
- the gripping body guide cylinder 3c is provided between the pipe contact members 3f via the guide cylinder holding member 3d.
- the gripping body guide cylinder is provided with an inclined surface 3b which is provided on the outer peripheral surface of each of the tube contact members 3f and which is inclined in a direction extending toward the tube opening 7b of the opposing tube 7 when it is advanced to the side.
- the inner surface of 3c slides while being pressed down in the axial direction of the hairpin tube 7, so that each of the tube contact members 3f is slit-shaped with a predetermined width dimension 3u for reducing the diameter radially in the axial direction of the mandrel 2.
- the gap 3a has a certain length along the longitudinal direction of the hairpin tube 7. It has a structure having a so-called collet chuck mechanism, which is formed at regular intervals at four locations (not necessarily at four locations, which is proportional to the set number of tube contact members 3f).
- a plurality of gripping bodies 3 having tube abutting members 3f are provided in a direction along the surface of the mounting table 1c to face the individual tube opening portions 7b of the hairpin tubes 7 inserted through the heat exchanger 5 (see FIG. Not shown).
- 1 shows a sandwiching body moving device composed of a guide rail 12 that reciprocates and a reciprocating cylinder 4f that allows the base table 4d to reciprocate, and the pair of sandwiching bodies 4a are inserted into the radiating fins 6 of the heat exchanger 5.
- a plurality (not shown) are provided in the direction along the surface of the mounting table 1c to face the hairpin portion 7c of each hairpin tube 7 that has been made.
- the mandrel 2 for expanding the tube is press-fitted into the hairpin tube 7 of the heat exchanger to manufacture the heat exchanger 5.
- the heat exchanger 5 is mounted on the mounting table 1c, and then the pressing plate 11 positioned above is lowered to place the heat exchanger 5 on the mounting table. Press and fix between 1c.
- the hairpin portion 7c of the hairpin tube 7 of the heat exchanger 5 is moved forward (not shown) along the guide rail 12 by operating the reciprocating cylinder 4f of the sandwiching body moving device 4 and The drive cylinder 4e is driven to hold the hairpin portions 7c of the hairpin tubes 7 by the substantially tongue-shaped concave portions 4g in a plan view of the pair of sandwiching bodies 4a as shown in FIG.
- the inner surface of the substantially tongue-shaped concave portion 4g in plan view facing the sandwiching body 4a goes around to the substantially U-shaped inner peripheral surface portion of the hairpin portion 7c.
- the substantially U-shaped inner peripheral surface portion is provided with a convex portion 4c having a generally tongue shape in plan view that prevents movement in the contraction direction.
- each expansion mandrel 2 is press-fitted at a predetermined depth (arrow A) from the tube opening 7b of each hairpin tube 7 to expand the expansion portion 7d having a predetermined length.
- the peripheral surface portion 7e is moved forward (arrow B) via the gripping body holding member 3l to the peripheral surface portion 7e of the expanded tube portion 7d from the tube mouth portion 7b side of the hairpin tube 7.
- the gripping body 3 is externally fitted in an enclosed state by a plurality of tube contact members 3f that can be expanded and contracted.
- the grip body guide tube 3c is provided on the outer surface of each of the tube contact members 3f and slides and presses the inclined surface 3b inclined in the direction of expanding toward the tube port 7b side of the opposite tube 7 so that each tube holder is pressed.
- Each of the contact members 3f is reduced in diameter by a space distance of a predetermined width dimension 3u of the slit-shaped gap 3a, that is, an anti-radial shape in the axial direction of the tube expansion mandrel 2, and each tube contact member 3f is a hairpin.
- the peripheral surface portion 7e of the expanded portion 7d of the tube 7 is firmly held and held.
- the tube expansion mandrel 2 is held in a state where the peripheral surface portion 7e of the tube expansion portion 7d in the vicinity of the tube opening portion 7b of the hairpin tube 7 is firmly held via the plurality of tube contact members 3f of the holding body 3.
- the sandwiching body moving device 4 having the sandwiching body 4a sandwiching the hairpin portion 7c is slightly moved in the same direction as the forward direction of the tube expansion mandrel 2 ( By retracting (not shown) and applying a tensile force to the entire hairpin tube 7, not only the entire length of the hairpin tube 7 is contracted but also the sliding of the hairpin tube 7 from the tube contact member 3f and the sandwiching body 4a. Therefore, it is possible to manufacture a heat exchanger in which the shrinkage of the entire length of the hairpin tube 7 is further minimized, and as a result, it is possible to manufacture a heat exchanger in which the material cost is minimized. I can do it.
- each holding body 3 having a plurality of tube contact members 3f that advance from the direction of the tube opening 7b of the hairpin tube 7 can be individually fixed.
- each of the tube contact members 3f of the gripping body 3 is Since the peripheral surface portion 7e of the tube expansion portion 7d of the hairpin tube 7 is gripped by reducing the diameter thereof in an anti-radial manner via the slit-shaped gap 3a having a predetermined width 3u provided between the tube contact members 3f. Even if there is a slight difference in the tube diameter, the tube opening of the hairpin tube 7 is securely and firmly adjusted through the spatial distance of the slit-shaped gap 3a having a predetermined width 3u between the tube contact members 3f.
- the hook body 10 In addition to being able to hold the portion 7b side, also in the hairpin portion 7c, the hook body 10 having a shape that matches the arc shape substantially the same as the inner periphery of the hairpin portion 7c, which differs for each tube diameter of the hairpin tube 7. , Expand the tube by exchanging it for each tube diameter of the hairpin tube 7 Because there is no need for any inconvenience that the hairpin tube 7 needs to be bent, the arc shape of the hairpin portion 7c of the hairpin tube 7 can be securely held firmly through the pair of holding bodies 4a without being deformed.
- the outer diameter of the hairpin tube 7 used for the tube expansion (the tube diameter considering the arc shape) is slightly different depending on the type of the heat exchanger 5 or the total length of the hairpin tube 7 is slightly different, A desired expansion tube can be applied to the heat exchanger and produced without modifying the manufacturing apparatus.
- the hairpin tube is connected to the radiating fin 6 of the heat exchanger 5.
- 7 is inserted in a zigzag pattern (not shown) as described above, and each hairpin tube 7 inserted in a zigzag pattern is inserted into a plurality of rows of three or four rows so as to make the interval (insertion pitch) close to each other.
- the width (separation distance) between the facing tubes of the hairpin tube 7 and the length of protrusion from the end side radiation fin 6 of the hairpin portion 7c of the hairpin tube 7 are considered.
- the hairpin tube 7 does not necessarily have to be inserted into the heat radiating fins 6 of the heat exchanger 5, for example, even when a large number of straight tubes (not shown) are inserted into the heat radiating fins 6 of the heat exchanger 5, One end of the straight pipe projecting from the end-side radiating fin 6 is sandwiched and held by the pair of sandwiching bodies 4a, and thereafter, the mandrel 2 for expanding the tube from the tube opening 7b on the other end side of the straight pipe is the same as described above. By press-fitting through the process, a high-quality heat exchanger with high dimensional accuracy can be produced.
- the tube for expanding the tube is also used. Even if the tube diameter is slightly different depending on the type of heat exchanger specifications, the hairpin tube or straight tube located on the inner side is as strong and strong as the hairpin tube or straight tube located on the outer side. It is possible to hold and expand pipes, and to produce high-quality heat exchangers that minimize material costs by minimizing the shrinkage of the overall length. .
- the peripheral surface portion 7e of the gripped expanded tube portion 7d is pressed (arrow D) to each of the tube contact members 3f at positions where they contact the hairpin tube 7 and the expanded tube portion 7d.
- the tube expansion portion 7d is more firmly formed.
- the problems to be solved by the present invention are as follows. That is, according to the heat exchanger manufacturing apparatus 1 having the above-described configuration, the inclined surface 3b that is inclined in the direction that expands toward the tube opening 7b side of the opposing tube 7 is formed, and the longitudinal direction of the hairpin tube 7 is A gripping body 3 having a plurality of pipe contact members 3f that are radially expandable / retractable (arrow E) in an intersecting direction can be externally fitted in a reciprocating manner from a pipe opening 7b of the pipe 7, and the inclined surface 3b
- the gripping body 3 is formed so as to reach the tip 3o of the tube contact member 3f, and the male screw portion 3k provided on the other end side opposite to the tube contact member 3f is disposed in the longitudinal direction of the hairpin tube 7.
- a reciprocating means such as a cylinder (not shown) or the like is screwed to and held by a gripping body holding member 3l that can reciprocate at a predetermined pitch (arrow F).
- Reciprocating (arrow G) via reciprocating means such as (not shown) Since the guide cylinder holding member 3d is externally slidably fitted with a gripping body guide cylinder 3c that is screwed and held via a male screw part 3h provided at the other end, the guide cylinder 3c is By sliding the tube abutting member 3f toward the tube port 7b side of the tube 7 along the inclined surface 3b, the diameter of each of the tube abutting members 3f is reduced radially, while the tube abutting member 3f.
- the tip of the guide tube 3c becomes the tip 3o of the tube abutting member 3f. It is necessary to advance the guide tube 3c while sliding it on the inclined surface 3b of the tube contact member 3f to a position where it can reach.
- the holding body 3 Each of the tube abutting members 3f is connected to the peripheral surface portion 7e of the expanded portion 7d of the hairpin tube 7 to some extent via the spatial distance of the slit-shaped gap 3a having a predetermined width dimension 3u provided between the tube abutting members 3f. Since the gripping is performed while adjusting, the diameter of the tube diameter is automatically adjusted through the slit-shaped gap 3a between the respective tube contact members 3f, so that the tube opening of the hairpin tube 7 is securely and firmly fixed.
- the inclined surface 3b of the tube contact member 3f is the tube contact member. Since it is formed to a position that reaches the tip 3o of 3f, When the diameter of the abutting member 3f is reduced, the tip of the gripper guide cylinder 3c must be moved to the position of the tip 3o of the tube abutting member 3f. Even when the outer diameter of 3 itself is made as small as necessary, the outer diameter dimension of the gripping body guide cylinder 3c to be externally fitted is always up to the tip 3o of the opposing pipe contact member 3f that is reduced in diameter when expanded.
- each straight tube or each hairpin tube 7 With a significantly narrow interval is held by the gripping body guide tube.
- a gripping body 3 having a simple structure in which the gripping body guide cylinder 3c is slidably reciprocated on the tube abutting member 3f toward the tube opening 7b.
- the distance between the straight pipes and the hairpin pipes 7 inserted through the heat radiation fins 6 is extremely narrow. Even in such a case, the gripping body 3 that can avoid the contact of the gripping body guide tube 3c located next to the gripping body 3 and can significantly reduce the interval (pitch), and the heat exchange having the gripping body 3 Development of a container manufacturing device has been desired.
- the outer diameter of the expanded portion of the pipe is the gripping body 3 or the gripping body 3. If it is smaller than the inner diameter between the tube abutting members 3f, there is no problem in fitting the gripping body 3 or the tube abutting member 3f to the peripheral surface portion 7e of the straight tube or the expanded portion 7d of each hairpin tube 7.
- the outer diameter of the expanded portion of the tube is substantially the same as the inner diameter between the gripping body 3 and the tube contact member 3f of the gripping body 3 (the inner diameter between the protrusions 3e when the projection body 3e is provided).
- the axial center direction of the expanded tube portion 7d along the longitudinal direction of the mandrel of the expanded tube portion 7d is slightly inclined so as to deviate from the axial direction of the gripping body 3 along the longitudinal direction of the mandrel.
- the tube opening 7b of the tube provided with the expanded portion 7d and the tip 3o of the tube abutting member 3f are in contact with or in contact with each other. Even sometimes deformed or damaged either, some improvements were necessary.
- the distance between the straight pipe and the hairpin pipe that is reduced in size (using a thin tube or reducing the size of the heat exchanger itself, etc.) by energy saving or cost reduction and inserted into the heat radiating fin of the heat exchanger or heat dissipation.
- the distance between the straight tubes and hairpin tubes inserted in a staggered manner in the fin 6 but also each straight tube and each hairpin tube are inserted into the radiation fins in multiple rows such as 3 rows, 4 rows, etc.
- the outer diameter of the expanded portion of the tube for expanding the tube is slightly different depending on the type of the heat exchanger, each straight tube inserted through the radiating fin as described above
- the outer diameter of the expanded portion of the tube is not limited to the inner diameter of the gripping body itself or the inner diameter between the abutting members (if a protrusion is provided, the protrusion The inner diameter between the body) is about the same as the length of the mandrel in the expanded section. Even if the axial center direction of the expanded tube portion along the direction is slightly inclined so as to deviate from the axial direction of the gripper along the longitudinal direction of the mandrel, the expanded tube portion is provided to solve all the above problems.
- a heat exchanger insertion tube gripping body of the heat exchanger a method of manufacturing the heat exchanger using the gripping body, an apparatus therefor, and a manufactured heat exchanger to manufacture a heat exchanger that is substantially equivalent
- An air conditioner and / or an outdoor unit thereof is provided.
- the present invention takes the following means to solve the above-mentioned problems. That is, the invention described in claim 1 is used in the heat exchanger manufacturing apparatus 1 and reciprocates to the tube expansion mandrel 2 that can be press-fitted from the tube port portion 7 b of the tube 7 inserted through the heat radiating fins 6 of the heat exchanger 5. It has a plurality of tube abutting members 3f that can be movably fitted and that are radially expandable / contractable in a direction intersecting the longitudinal direction of the tube 7, and are opposed to the outer surface of the tube abutting member 3f.
- Sliding means is formed which has an inclined surface 3b which is inclined in a direction extending toward the tube opening 7b side of the tube 7 and reciprocally slides on the inclined surface 3b of the tube contact member 3f in the longitudinal direction of the tube.
- a heat exchanger insertion tube gripping body 3 that expands and contracts each of the tube abutting members 3f radially, and a plurality of radially expandable and contractable tube abutting members 3f are provided in a reciprocating direction of the mandrel 2 for expanding the tube.
- An object of the present invention is to provide a gripping body for a heat exchanger insertion tube having a formed configuration.
- the sliding means for reciprocally sliding the inclined surface 3b of the tube abutting member 3f of the holding body 3 in the longitudinal direction of the tube is a guide tube. 3c, and the outer diameter 3w of the guide tube 3c and the maximum outer diameter 3v of the gripping body 3 comprising the pipe contact member 3f facing each other so as to have the inclined surface 3b.
- the maximum outer diameter dimension 3v is set to be equal to or smaller than the outer diameter dimension 3w of the guide cylinder 3c.
- the invention according to claim 3 is that in the gripping body, the gripping body 3 is configured such that the radially expanding and contracting tube abutting member 3f includes the slit-shaped gap 3a from a predetermined position to the tube opening portion of the pipe 7.
- the gripping body 3 is configured such that the radially expanding and contracting tube abutting member 3f includes the slit-shaped gap 3a from a predetermined position to the tube opening portion of the pipe 7.
- the invention described in claim 4 is the projection that protrudes in the axial direction of the tube 7 on the inner surface of the gripping body 3 on the side of the tube opening 7b of the tube contact member 3f of the gripping body 3.
- a body 3e is provided, and when the tube contact member 3f is externally fitted to the protrusion 3e from the tube opening 7b side of the tube 7, the protrusion 3e and the tube 7b of the tube 7 collide with each other.
- a curved surface is provided.
- the gripping body 3 having the tube abutting member 3f has a gripping body that expands and contracts radially when the gripping body 3 is held by the gripping body holding member 3l. 3 is provided with a restricting means for restricting the expansion / contraction position of the tube contact member 3f (rotation restriction with respect to the holding body holding member 3l).
- An inclined surface 3g or a curved surface inclined in a direction extending toward the portion 7b is provided, and an inclined surface 3b provided on the outer surface of the tube contact member 3f of the gripping body 3 is provided with the tube contact. This is because it is provided at a position that avoids reaching the tip 3o of the member 3f.
- the invention according to claim 7 is a first step of forming a tube-expanded portion having a predetermined length by press-fitting a tube-expanding mandrel at a predetermined depth from a tube opening portion of a tube inserted through a heat radiating fin of the heat exchanger. And a plurality of slit-shaped gaps having a predetermined width dimension provided in the longitudinal direction along the reciprocating direction of the tube expansion mandrel, and the slit-shaped gaps extend from a predetermined position toward the tube mouth portion of the pipe.
- the gripping body of the heat exchanger insertion tube having a plurality of pipe abutting members that are radially expandable / contractible so as to have an enlarged width dimension that gradually increases the predetermined width dimension toward the outside is surrounded by the expanded pipe portion.
- Each of the contact members is reduced in diameter in the axial direction of the tube expansion mandrel so as to gradually reduce the expanded width dimension obtained by gradually increasing the predetermined width dimension of the slit-shaped gap from the predetermined position, and the pipes are connected via the respective tube abutting members.
- a third stroke for firmly gripping and holding the peripheral surface portion of the expanded pipe portion, and a mandrel for expanding the pipe in a state where the peripheral surface portion of the expanded pipe portion of the tube is firmly held by each tube abutting member of the gripping body Is further press-fitted into the pipe to provide a method of manufacturing a heat exchanger using a gripping body of a heat exchanger insertion pipe comprising a fourth step of integrating the radiating fin and the pipe.
- the invention according to claim 8 is provided on the inner surface of the plurality of tube abutting members that are radially expandable and contractible on the tube mouth side.
- the slit-shaped gap has an enlarged width dimension that gradually increases the predetermined width dimension from a predetermined location toward the tube mouth portion of the pipe.
- the plurality of tube abutting members that can be expanded and contracted by being formed have slit-shaped gaps that are radially curved or bent from the vicinity of a predetermined portion toward the tube opening portion of the tube.
- the invention according to claim 9 is the method of manufacturing a heat exchanger using the gripping body of the heat exchanger insertion tube, and the gripping body 3 having the tube abutting member 3f includes the gripping body.
- a restricting means for restricting the expansion / contraction position of the tube abutting member 3f of the gripping body 3 that expands and contracts radially when the gripping body holding member 3l is held.
- the invention according to claim 10 is a method of manufacturing a heat exchanger using a gripping body of the heat exchanger insertion tube, and allows the inclined surface 3b of the tube contact member 3f to reciprocate in the longitudinal direction of the tube.
- the sliding means for sliding comprises a guide cylinder 3c, and the maximum outer diameter dimension of the gripping body 3 comprising the outer diameter dimension 3w of the guide cylinder 3c and the tube abutting member 3f facing each other so as to have the inclined surface 3b.
- the maximum outer diameter 3v of the gripping body 3 is set to be equal to or smaller than the outer diameter 3w of the guide cylinder 3c.
- the invention according to claim 11 is to provide an air conditioner including a heat exchanger manufactured by a method of manufacturing a heat exchanger using a gripping body of the heat exchanger insertion tube.
- the invention described in claim 12 provides an outdoor unit used in an air conditioner including a heat exchanger manufactured by a method of manufacturing a heat exchanger using a gripping body of the heat exchanger insertion tube. There is.
- the invention described in claim 13 is used in the heat exchanger manufacturing apparatus 1 and reciprocates to the expansion mandrel 2 that can be press-fitted from the tube port portion 7 b of the tube 7 inserted into the radiating fin 6 of the heat exchanger 5. It has a plurality of tube abutting members 3f that can be movably fitted and that can radially expand and contract in a direction intersecting the longitudinal direction of the tube 7, and are opposed to the outer surface of the tube abutting member 3f.
- An inclined surface 3b that is inclined in a direction that expands toward the tube opening 7b side of the tube 7 is formed, and the inclined surface 3b of the tube contact member 3f is slidably reciprocated in the longitudinal direction of the tube, thereby
- a heat exchanger insertion tube gripping body 3 having sliding means for radially expanding and contracting each of the contact members 3f is provided, and an inner surface of the tube contact member 3f on the tube opening 7b side is provided with a tube 7
- a protrusion 3e protruding in the axial direction is provided, and the protrusion 3e has a tube opening portion of the tube 7
- An inclined surface 3m or a curved surface inclined in a direction expanding toward the tube opening 7b side of the tube 7 facing the tip 3o of the contact member 3f is provided, and on the inner peripheral surface of the tip of the guide tube 3c.
- an inclined surface 3g or a curved surface inclined in a direction extending toward the tube opening 7b side of the opposing tube 7 is provided to reduce sliding wear with the inclined surface 3b on the outer surface of the tube contact member 3f.
- the heat exchanger manufacturing apparatus provided at a position where the inclined surface 3b provided on the outer surface of the tube contact member 3f of the holding body 3 avoids reaching the tip 3o of the tube contact member 3f.
- the plurality of radially expanding and contracting tube abutting members 3f are provided on the mandrel 2 for expanding the tube.
- a plurality of slit-shaped gaps 3a having a predetermined width dimension 3u provided in the longitudinal direction of the gripping body 3 along the backward movement direction are formed.
- An object of the present invention is to provide a heat exchanger manufacturing apparatus configured to have an expanded width dimension 3x obtained by gradually expanding the predetermined width dimension 3u toward the mouth portion 7b.
- the pipe 3 is used to avoid reaching the tip 3o of the pipe abutting member 3f of the holding body 3.
- An inclined surface 3b provided on the outer surface of the abutting member 3f is provided on the rear side which is on the side opposite to the tip 3o from the formation position of the protrusion 3e provided on the inner surface of the tube abutting member 3f on the tube opening 7b side. That is.
- the invention described in claim 15 is the gripping body 3 used in the heat exchanger manufacturing apparatus 1, in which the gripping body 3 is attached to and detached from the gripping body holding member 3 l. This is because a tool locking portion 3j used for the above is provided.
- the holding body 3 in the holding body 3 used in the heat exchanger manufacturing apparatus 1, the holding body 3 is made to hold the holding body 3 on the holding body holding member 3l. At this time, there is provided a regulating means for regulating the expansion / contraction position of the tube abutting member 3f of the gripping body 3 that expands and contracts radially (rotation regulation with respect to the gripping body holding member 3l).
- the sliding means used for the gripping body 3 used in the heat exchanger manufacturing apparatus 1 comprises the guide cylinder 3c, and the guide cylinder 3c is held by the guide cylinder 3c. This is because a tool locking portion 3i used for attaching to and detaching from the member 3d is provided.
- the present invention relates to a gripping body 3 of a heat exchanger insertion tube used in a heat exchanger manufacturing apparatus 1, and a tube opening portion of a pipe 7 in which the gripping body 3 is inserted into a radiating fin 6 of a heat exchanger 5.
- 7b has a plurality of tube abutting members 3f that can be reciprocally fitted to a tube expansion mandrel 2 that can be press-fitted from the tube 7b, and can be radially expanded and contracted in a direction intersecting the longitudinal direction of the tube 7.
- an inclined surface 3b is formed which is inclined in a direction expanding toward the tube opening 7b side of the opposite tube 7, and the inclined surface 3b of the tube contact member 3f is formed in the longitudinal direction of the tube.
- a plurality of 3 f are provided in the longitudinal direction of the gripping body 3 along the reciprocating direction of the tube expansion mandrel 2.
- the slit is formed through a slit-shaped gap 3a having a predetermined width dimension 3u, and the slit-shaped gap 3a is enlarged by gradually increasing the predetermined width dimension 3u from the predetermined position toward the tube opening 7b of the tube 7. Since it is formed so as to have the width dimension 3x, when fitting the tube contact member 3f from the tube port 7b side of the tube 7, each tube contact facing the tube port 7b of the tube 7 Each tube through a slit-shaped gap 3a having a predetermined width dimension 3u provided in plural in the longitudinal direction of the holding body 3 so as to form each tube abutting member 3f with a maximum opening diameter 3y and an expansion / contraction range amount of the member 3f.
- the outer diameter 7i of the expanded portion 7d on the tube opening 7b side of the tube 7 is the inner diameter of the gripping body 3 itself or the tube abutting member.
- the tip end of the tube contact member 3f and the tube port portion 7b of the tube 7 come into contact with or contact each other via each tube contact member 3f having the maximum opening diameter 3y and the expansion / contraction range amount increased, and at least one of them is in contact. There is an effect that the deformation and breakage can be surely prevented.
- the sliding means for reciprocatingly sliding the inclined surface 3b of the tube abutting member 3f of the gripping body 3 in the longitudinal direction of the tube comprises the guide tube 3c.
- the maximum outer diameter 3w of the gripping body 3 is defined by the outer diameter 3w of the guide cylinder 3c and the maximum outer diameter 3v of the gripping body 3 composed of the pipe contact member 3f facing each other so as to have the inclined surface 3b.
- the tube abutting member 3f can be accommodated within the outer diameter 3w of the guide tube 3c in a state of being expanded from the slit-shaped gap 3a having a width dimension 3u.
- the distance between the pipes 7 or the distance between the straight pipes inserted is the conventional distance. Even when the distance between the guide cylinders 3c is increased corresponding to the case where the distance between the guide cylinders 3c becomes narrower, the tube abutting members 3f of the respective gripping bodies 3 housed in the respective adjacent guide cylinders 3c are used. Even when the tube 7 is operated to grip the expanded portion 7d on the tube opening 7b side, it is possible to reliably prevent contact or contact between the adjacent tube contact members 3f.
- a plurality of pipe contact members 3f that are radially expandable / contractible of the gripping body 3 are arranged so that the slit-shaped gap 3a is located at a predetermined position from the pipe opening 7b of the pipe 7.
- a protrusion 3e protruding in the axial direction of the tube 7 is provided on the inner surface of the tube contact member 3f of the gripping body 3 on the tube mouth portion 7b side.
- the tube contact member 3f is externally fitted to the protrusion 3e from the tube opening 7b side of the tube 7, the tube opening due to the collision between the protrusion 3e and the tube opening 7b of the tube 7 is provided.
- an inclined surface 3m or a curved surface is provided which is inclined in a direction extending from the top 3p of the protrusion 3e toward the tube opening 7b of the tube 7 facing the tip 3o of the tube contact member 3f.
- the tube holder of the holding body 3 that expands and contracts radially is provided.
- a restricting means for restricting the expansion / contraction position of the contact member 3f rotation restriction with respect to the gripping body holding member 3l
- the expanded portion of the tube 7 inserted through the radiation fin 6 of the heat exchanger 5 When the end plate (not shown) provided near 7d and the distance between adjacent inserted pipes 7 are short, etc., when the diameter of the pipe contact member 3f of each gripping body 3 is increased radially.
- the pipe of the gripping body 3 having the gripping body guide cylinder 3c from the tube port portion 7b of each straight pipe or each hairpin pipe 7 When the abutting member 3f is fitted externally, the gripping body guide cylinders 3c having a reduced outer diameter 3q can avoid abutment between the gripping body guide cylinders 3c located next to each other. Due to cost reduction, the straight pipes inserted into the heat radiating fins of the heat exchanger and the intervals between the hairpin pipes 7 and the straight pipes inserted into the radiating fins 6 in a zigzag manner and the hairpin pipes 7 are reduced.
- the heat exchanger 5 in which not only the intervals but also the straight tubes and the hairpin tubes are inserted into the radiating fins 6 in a plurality of rows such as three rows and four rows, and the intervals between the tubes are remarkably narrow. There is an effect that you can.
- the tube can be reciprocally fitted to the tube expansion mandrel 2 that can be press-fitted from the tube port portion 7b of the tube 7 inserted through the heat radiation fin 6 of the heat exchanger 5.
- a plurality of tube contact members 3f that are radially expandable / contractible in a direction intersecting with the longitudinal direction of the tube 7 are provided, and a tube opening portion of the opposite tube 7 is provided on the outer surface of the tube contact member 3f.
- An inclined surface 3b inclined in a direction extending toward the 7b side is formed, and each of the tube abutting members 3f is slidably reciprocally moved in the longitudinal direction of the tube on the inclined surface 3b of the tube abutting member 3f.
- a heat exchanger insertion tube gripping body 3 having sliding means for radially expanding and contracting is provided, and the inner surface of the tube contact member 3f on the tube port 7b side protrudes in the axial direction of the tube 7.
- the protrusion 3e is provided, and the protrusion 3e is provided with a tube contact member from the tube opening 7b side of the tube 7.
- the tip 3o of the tube abutting member 3f is projected from the top 3p of the projection 3e in order to prevent deformation of the tube 7b due to the collision between the projection 3e and the tube 7b of the tube 7.
- An inclined surface 3m or a curved surface that is inclined in a direction that expands toward the tube opening 7b side of the tube 7 that opposes the tube 7 is provided, and on the inner peripheral surface of the distal end of the guide tube 3c, the tube abutting member 3f is provided.
- An inclined surface 3g or a curved surface that is inclined in a direction that expands toward the tube opening 7b side of the opposite tube 7 in order to reduce sliding wear with the inclined surface 3b of the outer surface is provided.
- the heat exchanger manufacturing apparatus 1 provided at a position where the inclined surface 3b provided on the outer surface of the tube contact member 3f avoids reaching the tip 3o of the tube contact member 3f.
- a plurality of tube contact members 3f that can be expanded and contracted are gripped along the reciprocating direction of the tube expansion mandrel 2.
- a plurality of slit-shaped gaps 3a having a predetermined width dimension 3u provided in the longitudinal direction of the body 3 are formed, and the slit-shaped gaps 3a are formed from a predetermined position toward the tube opening 7b of the tube 7.
- the gripping body 3 in which the axial center direction of the expanded portion 7d along the longitudinal direction of the mandrel is along the longitudinal direction of the mandrel 3 is slightly inclined so as to deviate from the axial direction of the tube 3, and the tip of the tube contact member 3f and the tube 7 are connected to each other through the tube contact members 3f having the maximum opening diameter 3y and the expansion / contraction range amount increased.
- the present invention provides a gripping body even when the diameter of the hairpin tube 7 of the heat exchanger 5 for expanding the tube differs depending on the type of the specifications of the heat exchanger 5.
- Each of the three tube contact members 3f is automatically adjusted to fit the tube diameter via the slit-shaped gap 3a provided between the tube contact members 3f, and provided on the tube contact member 3f.
- the protrusion 3e presses the peripheral surface portion 7e of the tube expansion portion 7d formed on the tube mouth portion 7b side of the hairpin tube 7 to form a bulging portion 7g in the axial direction of the tube 7 on the peripheral surface portion 7e.
- the opposing tube contact member whose diameter is reduced through the slit-shaped gap 3a when expanding the outer diameter 3q of the gripper guide tube 3c fitted to the gripper 3 having the tube contact member 3f.
- the reference diameter the inner diameter 3r as viewed from the gripping body guide tube 3c
- the distance between the tops of the inclined surfaces 3b of 3f is determined when the diameter of the tube contact member 3f is reduced. It is possible to set the pipe expansion portion 3s having the outer diameter dimension 3n to a position 3t separated from the tip 3o of the pipe contact member 3f in the direction opposite to the pipe opening 7b.
- the holding body guide tube 3c It is possible to reduce the inner diameter 3r of the holding body guide tube 3c, and as a result, the outer diameter 3q of the holding body guide tube 3c can be reduced naturally. Or the distance between each adjacent hairpin tube 7 Even when the interval between the inserted straight pipes is significantly narrower than the conventional interval, the holding body having the holding body guide cylinder 3c from the tube port portion 7b of each straight pipe or each hairpin pipe 7. When the three tube abutting members 3f are externally fitted, the gripping body guide cylinders 3c whose outer diameter dimension 3q is reduced can avoid abutment of each of the adjacent gripping body guide cylinders 3c.
- the present invention is provided on the outer surface of the tube contact member 3f so as to avoid reaching the tip 3o of the tube contact member 3f of the gripping body 3. Since the inclined surface 3b is provided on the rear side on the side opposite to the tip 3o from the formation position of the protrusion 3e provided on the inner surface of the tube contact member 3f on the tube opening 7b side, the tube contact member 3f is provided.
- the tube expansion portion 3s having the outer diameter 3n when the diameter is reduced to a position 3t farthest away from the tip 3o of the tube contact member 3f in the direction opposite to the tube portion 7b Therefore, it is possible to minimize the inner diameter dimension 3r of the gripping body guide cylinder 3c by the separated distance, and as a result, the outer diameter dimension 3q of the gripping body guide cylinder 3c can be set to the minimum. Therefore, the interval between the hairpin tubes 7 and each adjacent Even when the interval between the pin tubes 7 or the interval between the inserted straight tubes is extremely narrow, the grips having the gripping body guide cylinders 3c from the tube ports 7b of the respective straight tubes and the hairpin tubes 7 are used.
- each of the straight pipes and hairpin pipes 7 inserted into the heat radiating fins of the heat exchanger and staggered through the heat radiating fins 6 are reduced in size (energy saving, cost reduction, etc.)
- the holding body 3 is provided with a tool locking portion 3j used for detaching the holding body 3 from the holding body holding member 3l. Therefore, for example, by simply locking and rotating a tool such as a screwdriver on the tool locking portion 3j, not only the gripping body 3 is replaced due to wear but also the distance between the hairpin tubes 7 and the adjacent position.
- the gripping body 3 has a gripping body 3 that radially expands and contracts when held by the gripping body holding member 3l.
- a restricting means for restricting the expansion / contraction position of the contact member 3f for example, an end plate (not shown) provided in the vicinity of the expanded portion 7d of the tube 7 inserted through the heat radiating fin 6 of the heat exchanger 5 is provided.
- the guide tube 3c is provided with a tool locking portion 3i used for attaching and detaching the guide tube 3c to and from the guide tube holding member 3d.
- a tool such as a screwdriver
- the guide tube 3c can be exchanged easily and reliably in an extremely short time in correspondence with the interval between the hairpin tubes 7 or the interval between the inserted straight tubes, the tube diameter, and the like.
- FIG. 1 is a front view of a heat exchanger manufacturing apparatus according to the present invention.
- FIG. 2 shows a use state of the heat exchanger manufacturing apparatus of the present invention, (a) is an enlarged partial cross-sectional view of the main part, (b) is an enlarged view of the main part, and (c) and (d) are the main parts during the expansion.
- FIG. FIG. 3 shows the state of the gripping body used in the heat exchanger manufacturing apparatus of the present invention at the time of manufacturing before the slit-shaped gap opening processing, (a) is a front view, and (b) is HH in (a).
- FIG. 4 shows a gripping body guide cylinder used in the heat exchanger manufacturing apparatus of the present invention, wherein (a) is a partially enlarged view, (b) is a front view, and (c) is a line II of (b). Sectional drawing.
- FIG. 5 shows a use state of the gripping body used in the heat exchanger manufacturing apparatus of the present invention before the slit-shaped gap opening processing, (a) is a sectional view before gripping the tube, and (b) is after gripping the tube.
- FIG. 6A and 6B show a state after the slit-shaped gap opening processing of the gripping body used in the heat exchanger manufacturing apparatus of the present invention, FIG. .
- FIG. 5 shows a use state of the gripping body used in the heat exchanger manufacturing apparatus of the present invention before the slit-shaped gap opening processing
- FIG. 6A and 6B show a state after the slit-shaped gap opening processing of the gripping body used in the heat exchanger manufacturing apparatus of the present invention, FIG.
- FIG. 7 shows a use state of the gripping body used in the heat exchanger manufacturing apparatus of the present invention after the slit-shaped gap opening processing
- (a) is a sectional view when gripping the inclined pipe
- (b) is a pipe. Sectional drawing at the time of gripping a pipe
- FIG. 8 is a cross-sectional view showing another embodiment of the gripper used in the heat exchanger manufacturing apparatus of the present invention after the slit-like gap opening processing.
- FIG. 9 is a partial cross-sectional view showing another embodiment of the gripping body used in the heat exchanger manufacturing apparatus of the present invention after slit-like clearance opening processing.
- FIG. 10 shows an embodiment of a product including a heat exchanger manufactured by using a gripping body used in the heat exchanger manufacturing apparatus of the present invention, and (a) is an air conditioner including the heat exchanger. (B) is an outdoor unit provided with a heat exchanger used in an air conditioner.
- FIG. 11 is an enlarged partial cross-sectional view of a main part of a clamping body used in a conventional heat exchanger manufacturing apparatus.
- 12A and 12B show a conventional heat exchanger manufacturing apparatus, in which FIG. 12A is an enlarged front view during tube expansion, FIG. 12B is a perspective view of a clamp, and FIG.
- a gripping body of a heat exchanger insertion tube according to the present invention, a method and apparatus for manufacturing a heat exchanger using the gripping body, an air conditioner having the manufactured heat exchanger, and / or an outdoor unit thereof
- the gripping body guide cylinder is used as the sliding means
- the heat exchanger manufacturing apparatus including the gripping body on which the guide cylinder is slidably fitted is used to reduce the size of the heat.
- the exchanger and various insertion pipes with different pipe diameters but also the case of manufacturing a heat exchanger in which the interval between the pipes is extremely narrow. The description of the same part as the configuration is omitted.
- a heat exchanger manufacturing apparatus for realizing a heat exchanger manufacturing method including a tube contact member itself of a gripping body of a heat exchanger insertion tube and a guide tube, as shown in FIG.
- the mounting table 1c is reduced in size (thin tubes, etc.) by energy saving and cost reduction, and the hairpin tubes 7 are inserted into the radiating fins 6 in a plurality of rows such as a staggered shape, three rows, and four rows, for example.
- Heat exchanger 5 (hairpin tube 7 (not shown) inserted in a plurality of rows such as zigzag, three rows, four rows, etc.) in which the intervals between the tubes 7 and the hairpin tubes 7 located next to each other are extremely narrow.
- a predetermined number of a pair of sandwiching bodies 4a provided facing the hairpin portions 7c of the hairpin tube 7 inserted through the heat radiating fins 6 of the heat exchanger 5 are moved to the sandwiching body provided with the sandwiching bodies 4a.
- the reciprocating cylinder 4f of the device 4 is actuated to advance the base 4d along the guide rail 12 (not shown), and the drive cylinder 4e is driven to form a generally tongue-like shape in plan view of each pair of sandwiching bodies 4a.
- the concave portions 4g hold the hairpin portions 7c of the hairpin tubes 7 protruding from the heat radiating fins 6 of the heat exchanger 5, respectively.
- the opposing planes of the pair of holding bodies 4a In order to more firmly prevent the shrinkage of the hairpin tube 7 during the tube expansion, the inner surface of the generally tongue-shaped concave portion 4g is inserted into the substantially U-shaped inner peripheral surface portion of the hairpin portion 7c. Prevents movement of the circumferential surface in the shrinking direction Viewed substantially tongue-shaped convex portion 4c which is provided to face.
- each expansion mandrel 2 is press-fitted at a predetermined depth (arrow A) from the tube opening 7b of each hairpin tube 7 to expand the expansion portion 7d having a predetermined length. Then, the peripheral surface portion 7e is moved forward (arrow B) to the peripheral portion 7e of the expanded tube portion 7d from the side of the mouth portion 7b of the hairpin tube 7 via the gripping body holding member 3l.
- the gripping body 3 is externally fitted in a surrounding state by a plurality of tube contact members 3f that can be expanded and contracted.
- the holding body guide cylinder 3c is provided on the outer surface of each tube contact member 3f of the holding body 3 and slides on the inclined surface 3b inclined in the direction of expanding toward the tube opening 7b side of the opposing tube 7.
- each tube contact member 3f firmly holds and holds the peripheral surface portion 7e of the expanded portion 7d of the hairpin tube 7.
- the tube contact member 3f includes the gripper guide tube 3c and the tube contact member 3f.
- the gripping body 3 shown in FIGS. 3 to 5 described later is used. As shown in FIG.
- the tube contact member 3f presses (arrow D) the peripheral surface portion 7e of the gripped expanded tube portion 7d at a position where it contacts the expanded tube portion 7d of the hairpin tube 7.
- a protrusion 3e (the protrusion 3e described with reference to FIG. 2D) that can form a bulging portion 7g in the axial direction of the mandrel 2 on the inner peripheral portion 7f of the hairpin tube 7 is shown in FIGS.
- the projection 3e is slightly different in shape but performs the same function.), So that the peripheral surface portion 7e of the expanded portion 7d is gripped and held more firmly, so that the tube opening at the time of expansion It becomes possible to set the reference position of the portion 7b more reliably.
- the heat exchanger manufacturing apparatus provided with the gripping body 3 and the guide tube 3c disclosed in FIGS. 3 to 5 as described above, the intervals between the hairpin tubes 7 and the hairpin tubes 7 located next to each other.
- the heat exchanger manufacturing apparatus 1 is provided with an expanded tube that can be press-fitted from the tube port portion 7b of the tube 7 inserted into the heat radiating fins 6 of the heat exchanger 5.
- a plurality of tube contact members 3f that can be reciprocally fitted to the mandrel 2 and that can be radially expanded and contracted in a direction intersecting the longitudinal direction of the tube 7, and the outer surface of the tube contact member 3f Is formed with an inclined surface 3b inclined in a direction extending toward the tube opening 7b side of the opposing tube 7, and reciprocally slides along the inclined surface 3b of the tube contact member 3f in the longitudinal direction of the tube.
- a guide tube 3c that radially expands and contracts each of the tube contact members 3f.
- a heat exchanger insertion tube gripping body 3 is provided, and an inner surface of the tube contact member 3f on the tube opening 7b side is provided with a protrusion 3e protruding in the axial direction of the tube 7, and When the tube contact member 3f is externally fitted to the projection 3e from the side of the tube port 7b of the tube 7, the tube port 7b is deformed by the collision between the projection 3e and the tube port 7b of the tube 7.
- the guide cylinder 3c has an inner peripheral surface inclined in a direction that expands toward the tube mouth portion 7b side of the opposite tube 7 so as to reduce sliding wear with the inclined surface 3b of the outer surface of the tube contact member 3f.
- the inclined surface 3g or the curved surface is provided, and the inclined surface is provided on the outer surface of the tube contact member 3f of the gripping body 3.
- a gripping body holding member 3l (not shown) is attached to the expanded portion 7e of the pipe 7 having a predetermined pipe diameter 7h serving as a reference. Then, the gripping body guide tube 3c is moved forward (arrow J) to the tube port 7b side of the tube 7 through the guide tube holding member 3d.
- Each of the tube contact members 3f reduces the diameter of the expanded portion 7d of the tube 7 having a predetermined tube diameter 7h through the spatial distance of the slit-shaped gap 3a having a predetermined width 3u provided between the tube contact members 3f.
- the projection 3e held by the operation (arrow K) and further provided on the tube abutting member 3f is connected to the tube expanding portion 7
- the peripheral surface portion 7e is pressed to form a bulging portion 7g (not shown) in the axial direction of the tube 7 on the peripheral surface portion 7e, and is firmly held and held by the tube contact member 3f.
- the outer diameter 3q of the gripping body guide tube 3c fitted on the gripping body 3 having the tube contact member 3f is reduced in diameter through the slit-shaped gap 3a having a predetermined width 3u.
- the distance between the tops of the inclined surfaces 3b of the opposed pipe contact members 3f is 3n. It is possible to set the tube expansion portion 3s having the outer diameter 3n when the diameter of the member 3f is reduced to a position 3t separated from the tip 3o of the tube contact member 3f in the direction opposite to the tube opening 7b.
- the inner diameter dimension 3r of the gripping body guide cylinder 3c can be reduced by the separated distance, and as a result, the outer diameter dimension 3q of the gripping body guide cylinder 3c can be reduced naturally.
- the holding body guide cylinder 3c having a smaller outer diameter 3p makes contact between the adjacent holding body guide cylinders 3c.
- the heat exchanger 5 in which not only the distance between the straight pipes and the hairpin pipes 7 but also the straight pipes and the hairpin pipes are inserted into the radiating fins 6 in a plurality of rows such as three rows and four rows, so that the interval between the tubes is remarkably reduced. There is an advantage that can be manufactured satisfactorily.
- an inclined surface 3b provided on the outer surface of the tube abutting member 3f to avoid reaching the tip 3o of the tube abutting member 3f of the holding body 3 as described above is a tube.
- the tube contact member 3f is provided on the rear side opposite to the tip 3o from the formation position of the protrusion 3e provided on the inner surface of the tube opening 7b side of the contact member 3f, the diameter of the tube contact member 3f is reduced. It is possible to set the pipe expansion portion 3s having the outer diameter dimension 3n to a position 3t that is farthest away from the tip 3o of the pipe contact member 3f in the direction opposite to the pipe opening 7b, and thus the separated distance.
- the outer diameter dimension 3q of the gripping body guide tube 3c can be set to the minimum.
- the interval of the tube 7 and the interval or insertion of each hairpin tube 7 located next to the tube 7 Even when the interval between the straight pipes is extremely narrow, the pipe abutment of the gripping body 3 having the gripping body guide cylinder 3c from the tube port portion 7b of each straight pipe or each hairpin pipe 7
- the gripping body guide cylinder 3c having the smallest outer diameter 3p can avoid contact between the gripping body guide cylinders 3c located next to each other.
- the straight tubes and hairpin tubes 7 that are ultra-miniaturized (extra-thin tubes, etc.) and that are inserted through the heat dissipating fins of the heat exchanger and the spacing between the hairpin tubes 7 and the heat dissipating fins 6 are staggered
- the heat exchanger 5 in which the straight pipes and the hairpin pipes are inserted into the heat radiating fins 6 in a plurality of rows such as three rows and four rows as well as the intervals between the tubes is manufactured optimally. There is an advantage that you can.
- the holding body 3 having the above-described configuration is provided with a tool locking portion 3j used for attaching and detaching the holding body 3 to and from the holding body holding member 3l
- the tool locking portion 3j In addition, for example, by simply locking and rotating a tool such as a screwdriver, not only replacing the gripping body 3 due to wear or the like, but also the interval between the hairpin tubes 7 or the interval between each adjacent hairpin tube 7 or the insertion.
- a tool such as a screwdriver
- the tool locking portion 3i includes, for example, By simply locking and rotating a tool such as a screwdriver, not only the replacement of the guide tube 3c due to wear or the like, but also the interval between the hairpin tubes 7 and the distance between each adjacent hairpin tube 7 or each inserted straight
- a tool such as a screwdriver
- a slit-shaped gap having a predetermined width dimension is formed from a predetermined position toward the tube mouth portion of the tube so as to form a tube contact member of the gripping body.
- FIG. 6 a pipe 7 in which a gripping body 3 of a heat exchanger insertion tube used in a heat exchanger manufacturing apparatus for realizing the heat exchanger manufacturing method is inserted into the heat radiating fins 6 of the heat exchanger 5.
- a plurality of tube abutting members 3f that can be reciprocally fitted to a tube expansion mandrel 2 that can be press-fitted from the tube opening portion 7b, and that are radially expandable and contractable in a direction intersecting the longitudinal direction of the tube 7.
- an inclined surface 3b is formed on the outer surface of the tube abutting member 3f so as to be inclined toward the tube port 7b side of the opposing tube 7, and the inclined surface 3b of the tube abutting member 3f is formed on the outer surface of the tube abutting member 3f.
- Each of the tube contact members 3f is radially expanded / reduced via sliding means that reciprocally slides in the longitudinal direction of the tube, and the plurality of radially expandable / contractable tube contact members 3f are used for tube expansion.
- the slit-shaped gap 3a gradually increases the predetermined width dimension 3u from the predetermined position toward the tube opening 7b of the pipe 7.
- a plurality of predetermined width dimensions 3u provided in the longitudinal direction of the gripping body 3 so as to form the respective tube contact members 3f, the maximum opening diameter 3y (arrow M) and the expansion / contraction range amount (space distance) of the tube contact member 3f. It is possible to greatly expand the maximum opening diameter and the expansion / contraction range (space distance) of each pipe contact member 3f through the slit-shaped gap 3a.
- a pipe 7 having a predetermined pipe diameter 7h serving as a reference has an axial direction of the expanded portion 7d of the pipe 7 along the longitudinal direction of the mandrel. Even when it is slightly inclined so as to deviate from the axial direction of the gripping body 3 along the longitudinal direction, the maximum opening diameter 3y and the amount of expansion / contraction range are greatly increased through each tube contact member 3f. Thus, there is an advantage that it is possible to surely prevent at least one of the tip end of the tube abutting member 3f and the tube opening 7b of the tube 7 from contacting or abutting to be deformed or damaged.
- the slit-shaped gap 3a of the gripping body 3 gradually expands the predetermined width dimension 3u from the predetermined position toward the tube opening 7b of the pipe 7.
- the inner diameter of the gripping body 3 itself or the inner diameter of the tube contact member 3f (when a protrusion is provided)
- the plurality of tube contact members 3f that are radially expandable / contractible of the gripping body 3 are arranged so that the slit-shaped gap 3a extends from a predetermined position toward the tube opening 7b of the tube 7.
- each tube abutting member 3f is changed from the maximum opening diameter 3y to the minimum opening diameter in proportion to the sliding distance of the guide tube 3c (the outer diameter of the tube expansion portion of the tube).
- the anti-radial shrinkage amount is different, there is an advantage that the expansion / contraction range amount can be adjusted as easily and surely as possible until a so-called gripping operation).
- a protrusion 3e that protrudes in the axial direction of the tube 7 is provided on the inner surface of the tube contact member 3f of the gripping body 3 on the tube mouth portion 7b side.
- the tube contact member 3f is externally fitted to the protrusion 3e from the tube opening 7b side of the tube 7, the tube opening 7b due to the collision between the protrusion 3e and the tube opening 7b of the tube 7 is provided.
- an inclined surface 3m or a curved surface is provided which is inclined in a direction extending from the top 3p of the protrusion 3e toward the tube opening 7b of the tube 7 facing the tip 3o of the tube contact member 3f.
- the guide cylinder 3c is opposed to the inner peripheral surface at the tip thereof so as to reduce sliding wear with the inclined surface 3b of the outer surface of the tube contact member 3f.
- An inclined surface 3g or a curved surface that is inclined in a direction that expands toward the tube opening 7b side of the tube 7 that is to be formed, and an inclined surface 3b that is provided on the outer surface of the tube contact member 3f of the gripping body 3 is provided.
- the distance between the hairpin tubes 7 and the distance between the adjacent hairpin tubes 7 is significantly narrower than the conventional intervals.
- the tube contact member 3f When the distance between the tops of the inclined surfaces 3b of the tube contact member 3f is determined as a reference diameter (the inner diameter 3r as viewed from the gripping body guide tube 3c) as the outer diameter 3n, the tube contact member 3f It is possible to set the tube expansion portion 3s having the outer diameter 3n when the diameter is reduced to a position 3t separated from the tip 3o of the tube contact member 3f in the direction opposite to the tube opening 7b. It is possible to reduce the inner diameter 3r of the gripper guide cylinder 3c by the distance, and as a result, the outer diameter 3q of the gripper guide cylinder 3c can also be reduced naturally.
- the holding body guide cylinder 3c is provided from the tube port portion 7b of each straight tube or hairpin tube 7.
- the gripping body guide cylinder 3c having a small outer diameter 3q avoids the abutment of the adjacent gripping body guide cylinders 3c.
- a sliding means that reciprocally slides in the longitudinal direction of the inclined surface 3 b of the tube contact member 3 f of the gripping body 3 uses a guide cylinder 3 c.
- the outer diameter 3w of the guide cylinder 3c and the maximum outer diameter 3v of the gripping body 3 composed of the pipe contact member 3f facing each other so as to have the inclined surface 3b are the maximum outer diameter of the gripping body 3.
- the tube abutting member 3f can be accommodated within the outer diameter 3w of the guide tube 3c in a state of being expanded from the slit-shaped gap 3a having a predetermined width 3u.
- the interval between the hairpin tubes 7 or the interval between the straight tubes inserted is the conventional Even when the distance between the guide cylinders 3c is increased corresponding to the case where the distance is significantly narrower than the distance, the tube abutting members 3f of the holding bodies 3 housed in the adjacent guide cylinders 3c are respectively interposed. Therefore, even when the tube 7 is operated to grip the expanded portion 7d on the tube opening 7b side, there is an advantage that the contact or contact of the adjacent tube contact member 3f can be surely prevented.
- the holding body 3 that expands and contracts radially when the holding body 3 is held by the holding body holding member 3l.
- a restricting means such as a notch N, a recess (not shown), or a protrusion (not shown) for restricting the expansion / contraction position of the tube contact member 3f (rotation restriction with respect to the holding body holding member 3l) is provided.
- the holding state of the gripping body holding member 3l or other parts corresponding to the control means of the gripping body 3 comes into contact with or comes into contact with the control means to hold the control state.
- a mandrel for tube expansion is press-fitted at a predetermined depth from a tube port portion of a tube inserted into the heat radiating fin of the heat exchanger, and a tube expansion portion of a predetermined length is formed
- a first step of forming, and a plurality of slit-shaped gaps of a predetermined width dimension provided in the longitudinal direction along the reciprocating direction of the tube expansion mandrel, and the slit-shaped gaps are A gripping body of a heat exchanger insertion tube having a plurality of pipe abutting members that are radially expandable / contractable so as to have an enlarged width dimension that gradually expands the predetermined width dimension toward the pipe opening direction.
- a tube contact member formed on the outer surface of the tube contact member and having an inclined surface inclined in a direction extending toward the tube opening side of the opposite tube. Press while sliding the inclined surface of the tube toward the tube mouth side
- Each of the tube abutting members is reduced in diameter in the axial direction of the mandrel for tube expansion so as to gradually reduce the expanded width dimension obtained by gradually increasing the predetermined width dimension of the slit-shaped gap from the predetermined position through the sliding means.
- the heat exchanger is manufactured by the heat exchanger manufacturing method comprising the fourth step of integrating the radiating fin and the tube by press-fitting the tube expansion mandrel into the tube while holding and holding
- the slit-shaped gap 3a is formed so as to have an enlarged width dimension 3x obtained by gradually expanding the predetermined width dimension 3u from the predetermined position toward the tube opening 7b of the pipe 7
- the tube contact member 3f is externally fitted from the side of the portion 7b, the tube mouth portion 7b of the tube 7
- a plurality of predetermined opening diameters 3y (arrows M) and expansion / contraction range amounts (space distances) of the pipe contact members 3f facing each other are provided in the longitudinal direction of the gripper 3 so as to form the pipe contact members 3f. It is possible to significantly expand the maximum opening diameter
- a pipe 7 having a predetermined pipe diameter 7h serving as a reference has a mandrel in the axial direction of the expanded portion 7d of the pipe 7 along the longitudinal direction of the mandrel.
- the slit-shaped gap 3a of the gripping body 3 extends from the predetermined position toward the tube port 7b of the tube 7.
- the predetermined width dimension 3u is formed so as to have an expanded width dimension 3x that is gradually expanded toward the end
- the outer diameter 7i of the expanded portion 7d on the side of the tube opening 7b of the tube 7 is the same as that of the gripping body 3 itself.
- the inner diameter or the inner diameter between the tube contact members 3f (the inner diameter between the protrusions when the protrusions are provided) is approximately the same diameter 7i (larger than a certain predetermined pipe diameter 7h).
- the tip of the tube contact member 3f and the tube opening 7b of the tube 7 come into contact or contact with each other via the tube contact member 3f with the maximum opening diameter 3y and the expansion / contraction range expanded, and at least one of them is deformed. There is an advantage that damage can be surely prevented.
- the heat exchanger 5 manufactured by the heat exchanger manufacturing method using the gripping body of the heat exchanger insertion tube is, together with various devices such as a blower, as shown in FIG.
- various devices such as a blower, as shown in FIG.
- the air conditioner 20 housed in the casing 20a or the manufactured heat exchanger 5 is sold in the outdoor unit 21 used in the air conditioner 20, as shown in FIG.
- the distribution cost and the product cost can be greatly reduced through the heat exchanger which is reduced in size by reducing the tube diameter and / or bringing the interval between adjacent tubes closer.
- the heat exchanger 5 manufactured by the manufacturing method of the present invention as described above is used for the air conditioner 20 or the outdoor unit 21 used in the air conditioner 20, such an air conditioner is a so-called air handling unit or fan. It can be a central air conditioner called a coil unit, or an individual air conditioner called a packaged air conditioner or room air conditioner. In short, if it is an air conditioner using a heat exchanger, its specific structure Needless to say, the shape, type, size, system configuration, etc. are not limited at all. Moreover, the heat exchanger manufactured by the manufacturing method of this invention may be used for the product of various fields, and a use field, a sales field, etc. are not limited at all.
- a large number of hairpin tubes 7 do not necessarily have to be inserted into the heat radiating fins 6 of the heat exchanger 5. ) May be inserted, and the material, shape, type, number, insertion pattern, etc. of the tube used are not limited at all.
- the heat exchanger manufacturing apparatus including the gripping body 3 having the tube contact member 3f and the gripping body guide cylinder 3c slidably fitted thereto is a so-called horizontal type.
- a tube expansion device it is not necessary to be a horizontal tube expansion device, it may be a vertical tube expansion device, and not only the specific structure, type and characteristics of the heat exchanger manufacturing apparatus, but also the number of tube contact members Needless to say, the (number of sheets), the number of the gripping bodies and the sandwiching bodies, the arrangement, the arrangement location, etc. are not limited.
- the present invention expands the pipe using a pipe gripping body so as to keep the entire length of the pipe inserted through each through hole of the heat dissipating fins of the plurality of superposed heat exchangers substantially the same as before the pipe expansion.
- the outer diameter of the tube is substantially the same as the inner diameter of the gripping body itself or the inner diameter between the contact members (the inner diameter between the protrusions when a protrusion is provided inside the contact member). Even when the diameter is increased, the axis of the expanded portion along the longitudinal direction of the expanded portion mandrel Even if the direction is slightly inclined so as to be shifted from the axial direction of the gripper along the longitudinal direction of the mandrel, in order to solve all the above problems,
- the tube mouth portion of the tube located securely and firmly inside the heat exchanger while reliably preventing deformation or breakage due to contact or contact with the tip of the tube abutting member of the tube gripping body
- the heat exchanger insertion tube gripping body that can be held in the same manner as the tube mouth side of the tube located on the outside of the heat exchanger, and a heat exchanger manufacturing method using the gripping body and its
- the present invention relates to an air conditioner having an apparatus and a manufactured heat exchanger and / or an outdoor unit thereof
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- Details Of Heat-Exchange And Heat-Transfer (AREA)
Abstract
Description
即ち、上記構成からなる熱交換器製造装置1によれば、対向する管7の管口部7b側に向かって拡がる方向に傾斜した傾斜面3bが形成されると共に、ヘアピン管7の長手方向と交差する方向に放射状で拡縮自在(矢印E)な複数の管当接部材3fを有する掴持体3が管7の管口部7bから往復動自在に外嵌可能で、且つ前記傾斜面3bは管当接部材3fの先端3oにまで届くべく形成され、しかも該掴持体3は上記管当接部材3fと反する他端側に設けられた雄螺子部3kを、ヘアピン管7の長手方向にシリンダー(図示せず)等の往復動作手段を介して所定のピッチで往復動自在(矢印F)な掴持体保持部材3lに螺着されて保持されると共に、該掴持体3にはシリンダー(図示せず)等の往復動作手段を介して往復動自在(矢印G)なガイド筒保持部材3dに、他端部に設けられた雄螺子部3hを介いて螺着保持された掴持体ガイド筒3cが摺動自在に外嵌されてなることから、該ガイド筒3cを管当接部材3fの傾斜面3bに沿って管7の管口部7b側に向かって摺動させることで管当接部材3fの夫々を反放射状で縮径させつつ、管当接部材3fの管口部7b側の内面に設けられた突起体3eによりヘアピン管7の拡管部7dの周面部7eを押圧して該周面部7eに管7の軸芯方向に膨出部7gを形成させてより強固に掴持して保持することで拡管時に於ける管口部7bの基準位置をより確実に設定することが可能となりより高い精度を有した拡管作業を介して寸法精度の極めて高いより高品質の熱交換器を生産することが出来るものであるが、如何せん、上記構成からなる掴持体3の管当接部材3fの傾斜面3bは管当接部材3fの先端3oにまで届くべく形成されてなることから、ガイド筒3cの先端が管当接部材3fの先端3oに届く位置まで該ガイド筒3cを管当接部材3fの傾斜面3bに摺動させながら前進させる必要がある。
即ち、請求項1記載の発明は、熱交換器製造装置1に用いられ、且つ熱交換器5の放熱フィン6に挿通された管7の管口部7bから圧入可能な拡管用マンドレル2に往復動自在に外嵌可能で、しかも前記管7の長手方向と交差する方向で放射状に拡縮自在な複数の管当接部材3fを有し、且つ該管当接部材3fの外面には、対向する管7の管口部7b側に向かって拡がる方向に傾斜した傾斜面3bが形成され、しかも該管当接部材3fの傾斜面3bを管の長手方向に往復自在に摺動する摺動手段を介して管当接部材3fの夫々を放射状に拡縮させる熱交換器挿通管の掴持体3であって、前記放射状に拡縮自在な複数の管当接部材3fが拡管用マンドレル2の往復動方向に沿った掴持体3の長手方向に複数設けられた所定幅寸法3uのスリット状隙間3aを介して形成されてなり、しかも該スリット状隙間3aが所定箇所から前記管7の管口部7b側に向かって前記所定幅寸法3uを徐々に拡大した拡大幅寸法3xを有すべく形成された構成にしてなる熱交換器挿通管の掴持体を提供することにある。
かかる一実施形態では、摺動手段に掴持体ガイド筒を用いると共に、該ガイド筒を摺動自在に外嵌した掴持体を備えた熱交換器製造装置を用いて、小型化された熱交換器や管径の異なる各種の挿通管のみならず、各管の間隔が著しく狭くなった熱交換器を製造する場合等について説明するが、該熱交換器製造装置の各部構成について、従来の構成と同じ箇所の説明は省略するものとする。尚、掴持体の管当接部材を形成すべく所定幅寸法のスリット状隙間が所定箇所から管の管口部方向に向かって前記所定幅寸法を徐々に拡大した拡大幅寸法を有した管当接部材を備えた構成の掴持体の一実施形態に関しては、以下、先に説明する掴持体の管当接部材自体の構成の一実施形態と作用効果の違いから別けて後段にて説明する。
1a 製造装置本体
2 拡管用マンドレル
3 掴持体
3a スリット状隙間
3b 管当接部材の傾斜面
3c 掴持体ガイド筒
3d ガイド筒保持部材
3e 突起体
3f 管当接部材
3g 傾斜面
3h 掴持体ガイド筒の雄螺子部
3i 掴持体ガイド筒の道具係止部
3j 掴持体の道具係止部
3k 掴持体の雌螺子部
3l 掴持体保持部材
3o 掴持体の先端
3p 突起体の頂部
4 挟持体移送装置
5 熱交換器
6 放熱フィン
7 ヘアピン管(直管)
Claims (17)
- 熱交換器製造装置(1)に用いられ、且つ熱交換器(5)の放熱フィン(6)に挿通された管(7)の管口部(7b)から圧入可能な拡管用マンドレル(2)に往復動自在に外嵌可能で、しかも前記管(7)の長手方向と交差する方向で放射状に拡縮自在な複数の管当接部材(3f)を有し、且つ該管当接部材(3f)の外面には、対向する管(7)の管口部(7b)側に向かって拡がる方向に傾斜した傾斜面(3b)が形成され、しかも該管当接部材(3f)の傾斜面(3b)を管の長手方向に往復自在に摺動する摺動手段を介して管当接部材(3f)の夫々を放射状に拡縮させる熱交換器挿通管の掴持体(3)であって、前記放射状に拡縮自在な複数の管当接部材(3f)が拡管用マンドレル(2)の往復動方向に沿った掴持体(3)の長手方向に複数設けられた所定幅寸法(3u)のスリット状隙間(3a)を介して形成されてなり、しかも該スリット状隙間(3a)が所定箇所から前記管(7)の管口部(7b)方向に向かって前記所定幅寸法(3u)を徐々に拡大した拡大幅寸法(3x)を有すべく形成された構成にしてなることを特徴とする熱交換器挿通管の掴持体。
- 前記管当接部材(3f)の傾斜面(3b)を管の長手方向に往復自在に摺動する摺動手段がガイド筒(3c)からなり、しかも該ガイド筒(3c)の外径寸法(3w)と前記傾斜面(3b)を有すべく対向する管当接部材(3f)からなる掴持体(3)の最大外径寸法(3v)とにおいて、該掴持体(3)の最大外径寸法(3v)がガイド筒(3c)の外径寸法(3w)以下に設定されてなることを特徴とする請求項1記載の熱交換器挿通管の掴持体。
- 前記放射状に拡縮自在な複数の管当接部材(3f)が、前記スリット状隙間(3a)が所定箇所から前記管(7)の管口部(7b)方向に向かって所定幅寸法(3u)を徐々に拡大した拡大幅寸法(3x)を有すべく形成されることによりスリット状隙間(3a)の所定箇所近傍より管(7)の管口部(7b)方向に向かって放射状に湾曲又は屈曲してなることを特徴とする請求項1又は2記載の熱交換器挿通管の掴持体。
- 前記管当接部材(3f)の管口部(7b)側の内面には、管(7)の軸芯方向へと突出した突起体(3e)が設けられ、且つ該突起体(3e)には、管(7)の管口部(7b)側から管当接部材(3f)が外嵌される際に、突起体(3e)と管(7)の管口部(7b)との衝突による該管口部(7b)の変形を防止すべく突起体(3e)の頂部(3p)から管当接部材(3f)の先端(3o)へと対向する管(7)の管口部(7b)側に向かって拡がる方向に傾斜した傾斜面(3m)又は湾曲面が設けられてなることを特徴とする請求項1乃至3の何れかに記載の熱交換器挿通管の掴持体。
- 前記管当接部材(3f)を有する掴持体(3)には、該掴持体(3)を掴持体保持部材(3l)に保持された際に、放射状に拡縮する掴持体(3)の管当接部材(3f)の拡縮位置を規制する規制手段が設けられてなることを特徴とする請求項1乃至4の何れかに記載の熱交換器挿通管の掴持体。
- 前記ガイド筒(3c)の先端内周面には、前記管当接部材(3f)の外面の傾斜面(3b)との摺動摩耗を低減すべく対向する管(7)の管口部(7b)側に向かって拡がる方向に傾斜した傾斜面(3g)又は湾曲面が設けられてなり、しかも前記掴持体(3)の管当接部材(3f)の外面に設けられた傾斜面(3b)が、該管当接部材(3f)の先端(3o)に達するのを回避する位置に設けられてなることを特徴とする請求項2乃至5の何れかに記載の熱交換器挿通管の掴持体。
- 熱交換器の放熱フィンに挿通された管の管口部から拡管用マンドレルを所定の深さ寸法で圧入して所定の拡管部を形成する第一工程と、前記拡管用マンドレルの往復動方向に沿った長手方向に複数設けられた所定幅寸法のスリット状隙間を介して形成され、しかも該スリット状隙間が所定箇所から前記管の管口部方向に向かって前記所定幅寸法を徐々に拡大した拡大幅寸法を有すべく放射状に拡縮自在な複数の管当接部材を有した熱交換器挿通管の掴持体を前記拡管部に包囲状態で外嵌する第二行程と、前記管当接部材の外面に設けられ、且つ対向する管の管口部側に向かって拡がる方向に傾斜した傾斜面が形成された管当接部材の傾斜面を管の管口部側に向かって摺動しつつ押圧する摺動手段を介して管当接部材の夫々をスリット状隙間の所定幅寸法を所定箇所から徐々に拡大した拡大幅寸法を徐々に縮めるべく拡管用マンドレルの軸芯方向に縮径させて各管当接部材を介して管の拡管部の周面部を強固に掴持して保持する第三工程と、前記管の拡管部の周面部を掴持体の各管当接部材で強固に掴持して保持した状態で拡管用マンドレルをさらに管内に圧入することで放熱フィンと管とを一体化する第四行程とからなることを特徴とする熱交換器挿通管の掴持体を用いた熱交換器の製造方法。
- 前記放射状に拡縮自在な複数の管当接部材の管口部側の内面には、管の軸芯方向へと突出した突起体が設けられてなり、しかも前記スリット状隙間が所定箇所から前記管の管口部方向に向かって所定幅寸法を徐々に拡大した拡大幅寸法を有すべく形成されることにより前記拡縮自在な複数の管当接部材が、スリット状隙間の所定箇所近傍より管の管口部方向に向かって放射状に湾曲又は屈曲してなることを特徴とする請求項7記載の熱交換器挿通管の掴持体を用いた熱交換器の製造方法。
- 前記管当接部材(3f)を有する掴持体(3)には、該掴持体(3)を掴持体保持部材(3l)に保持させた際に、放射状に拡縮する掴持体(3)の管当接部材(3f)の拡縮位置を規制する規制手段が設けられてなることを特徴とする請求項7又は8記載の熱交換器挿通管の掴持体を用いた熱交換器の製造方法。
- 前記管当接部材(3f)の傾斜面(3b)を管の長手方向に往復自在に摺動する摺動手段がガイド筒(3c)からなり、しかも該ガイド筒(3c)の外径寸法(3w)と前記傾斜面(3b)を有すべく対向する管当接部材(3f)からなる掴持体(3)の最大外径寸法(3v)とにおいて、該掴持体(3)の最大外径寸法(3v)がガイド筒(3c)の外径寸法(3w)以下に設定されてなることから特徴とする請求項7及至9の何れかに記載の熱交換器挿通管の掴持体を用いた熱交換器の製造方法。
- 前記請求項7乃至10の何れかの製造方法により製造された熱交換器を備えてなることを特徴とする空気調和機。
- 前記請求項7乃至10の何れかの製造方法により製造された熱交換器を備えてなること特徴とする空気調和機に用いられる室外機。
- 熱交換器製造装置(1)に用いられ、且つ熱交換器(5)の放熱フィン(6)に挿通された管(7)の管口部(7b)から圧入可能な拡管用マンドレル(2)に往復動自在に外嵌可能で、しかも前記管(7)の長手方向と交差する方向で放射状に拡縮自在な複数の管当接部材(3f)を有し、且つ該管当接部材(3f)の外面には、対向する管(7)の管口部(7b)側に向かって拡がる方向に傾斜した傾斜面(3b)が形成され、しかも該管当接部材(3f)の傾斜面(3b)を管の長手方向に往復自在に摺動することで管当接部材(3f)の夫々を放射状に拡縮させる摺動手段を具備する熱交換器挿通管の掴持体(3)を有すると共に、該管当接部材(3f)の管口部(7b)側の内面には、管(7)の軸芯方向へと突出した突起体(3e)が設けられ、且つ該突起体(3e)には、管(7)の管口部(7b)側から管当接部材(3f)が外嵌される際に、突起体(3e)と管(7)の管口部(7b)との衝突による該管口部(7b)の変形を防止すべく突起体(3e)の頂部(3p)から管当接部材(3f)の先端(3o)へと対向する管(7)の管口部(7b)側に向かって拡がる方向に傾斜した傾斜面(3m)又は湾曲面が設けられ、且つ前記ガイド筒(3c)の先端内周面には、前記管当接部材(3f)の外面の傾斜面(3b)との摺動摩耗を低減すべく対向する管(7)の管口部(7b)側に向かって拡がる方向に傾斜した傾斜面(3g)又は湾曲面が設けられてなり、しかも前記掴持体(3)の管当接部材(3f)の外面に設けられた傾斜面(3b)が、該管当接部材(3f)の先端(3o)に達するのを回避する位置に設けられた熱交換器製造装置であって、前記放射状に拡縮自在な複数の管当接部材(3f)が拡管用マンドレル(2)の往復動方向に沿った掴持体(3)の長手方向に複雑に設けられた所定幅寸法(3u)のスリット状隙間(3a)を介して形成されてなり、しかも該スリット状隙間(3a)が所定箇所から前記管(7)の管口部(7b)方向に向かって前記所定幅寸法(3u)を徐々に拡大した拡大幅寸法(3x)を有すべく形成された構成にしてなることを特徴とする熱交換器製造装置。
- 前記掴持体(3)において、該掴持体(3)の管当接部材(3f)の先端(3o)に達するのを回避すべく、該管当接部材(3f)の外面に設けられた傾斜面(3b)が、管当接部材(3f)の管口部(7b)側の内面に設けられた突起体(3e)の形成位置より反先端(3o)側となる後方側に設けられてなることを特徴とする請求項13記載の熱交換器製造装置。
- 前記掴持体(3)には、該掴持体(3)を掴持体保持部材(3l)に着脱させるために用いる道具係止部(3j)が設けられてなることを特徴とする請求項13又は14記載の熱交換器製造装置。
- 前記掴持体(3)には、該掴持体(3)を掴持体保持部材(3l)に保持させた際に、放射状に拡縮する掴持体(3)の管当接部材(3f)の拡縮位置を規制する規制手段が設けられてなることを特徴とする請求項13乃至15の何れかに記載の熱交換器製造装置。
- 前記摺動手段がガイド筒(3c)からなり、且つ該ガイド筒(3c)にはガイド筒(3c)をガイド筒保持部材(3d)に着脱させるために用いる道具係止部(3i)が設けられてなることを特徴とする請求項13乃至16の何れかに記載の熱交換器製造装置。
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CN201180000487.8A CN102510780B (zh) | 2010-01-15 | 2011-01-14 | 热交换器插通管的夹持体及利用该夹持体的热交换器制造方法与装置、空调装置及/或室外机 |
US13/522,237 US9015943B2 (en) | 2010-01-15 | 2011-01-14 | Holder for pipe in heat exchanger, method and device for manufacturing heat exchanger using said holder, and air conditioner and/or outdoor unit having said heat exchanger |
KR1020117026700A KR101345995B1 (ko) | 2010-01-15 | 2011-01-14 | 열교환기 삽입관의 파지체 및 그 파지체를 사용하는 열교환기의 제조방법과 그 장치 및 제조된 열교환기를 구비하는 공기조화기 및/또는 그 실외기 |
US14/318,331 US9091493B2 (en) | 2010-01-15 | 2014-06-27 | Holder for pipe in heat exchanger, method and device for manufacturing heat exchanger using said holder, and air conditioner and/or outdoor unit having said heat exchanger |
US14/318,350 US9182179B2 (en) | 2010-01-15 | 2014-06-27 | Holder for pipe in heat exchanger, method and device for manufacturing heat exchanger using said holder, and air conditioner and/or outdoor unit having said heat exchanger |
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JP2010-022548 | 2010-01-15 | ||
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PCT/JP2010/057987 WO2011086713A1 (ja) | 2010-01-15 | 2010-04-30 | 熱交換器製造装置 |
JP2011018996A JP5870418B2 (ja) | 2010-01-15 | 2011-01-12 | 熱交換器挿通管の掴持体及びその掴持体を用いた熱交換器の製造方法とその装置 |
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US13/522,237 A-371-Of-International US9015943B2 (en) | 2010-01-15 | 2011-01-14 | Holder for pipe in heat exchanger, method and device for manufacturing heat exchanger using said holder, and air conditioner and/or outdoor unit having said heat exchanger |
US14/318,331 Division US9091493B2 (en) | 2010-01-15 | 2014-06-27 | Holder for pipe in heat exchanger, method and device for manufacturing heat exchanger using said holder, and air conditioner and/or outdoor unit having said heat exchanger |
US14/318,350 Division US9182179B2 (en) | 2010-01-15 | 2014-06-27 | Holder for pipe in heat exchanger, method and device for manufacturing heat exchanger using said holder, and air conditioner and/or outdoor unit having said heat exchanger |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2013012100A2 (ja) * | 2011-07-20 | 2013-01-24 | 京進工業株式会社 | 熱交換器挿通管の掴持体の製造方法及びその掴持体を用いた熱交換器の製造方法並びに製造された熱交換器を有する空気調和機及び/又はその室外機 |
CN112846685A (zh) * | 2019-11-12 | 2021-05-28 | 日高精机株式会社 | 发夹状热交换管的排列装置 |
CN113319563A (zh) * | 2021-06-22 | 2021-08-31 | 全椒赛德利机械有限公司 | 基于管片式散热器的自动上料穿管机构 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5422751Y2 (ja) * | 1975-09-04 | 1979-08-07 | ||
JP3347201B2 (ja) * | 1992-12-30 | 2002-11-20 | 株式会社リコー | 現像剤収納容器及び画像形成装置 |
JPH06230062A (ja) * | 1993-01-29 | 1994-08-19 | Hioki Ee Corp | 回路基板検査機のプローブピン取付装置 |
JPH073833U (ja) * | 1993-06-21 | 1995-01-20 | 京進工業株式会社 | 拡管ビレット |
JPH0999334A (ja) * | 1995-07-28 | 1997-04-15 | Hidaka Seiki Kk | 拡管装置及び拡管方法 |
JP3768715B2 (ja) * | 1999-02-15 | 2006-04-19 | 京進工業株式会社 | 熱交換器の製造方法及びその装置 |
-
2011
- 2011-01-14 WO PCT/JP2011/051374 patent/WO2011087158A2/ja active Application Filing
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WO2013012100A2 (ja) * | 2011-07-20 | 2013-01-24 | 京進工業株式会社 | 熱交換器挿通管の掴持体の製造方法及びその掴持体を用いた熱交換器の製造方法並びに製造された熱交換器を有する空気調和機及び/又はその室外機 |
JP2013039618A (ja) * | 2011-07-20 | 2013-02-28 | Kyoshin Kogyo Kk | 熱交換器挿通管の掴持体の製造方法及びその掴持体を用いた熱交換器の製造方法並びに製造された熱交換器を有する空気調和機及び/又はその室外機 |
WO2013012100A3 (ja) * | 2011-07-20 | 2013-03-14 | 京進工業株式会社 | 熱交換器挿通管の掴持体の製造方法及びその掴持体を用いた熱交換器の製造方法並びに製造された熱交換器を有する空気調和機及び/又はその室外機 |
US9656355B2 (en) | 2011-07-20 | 2017-05-23 | Kyoshin Kogyo Co., Ltd. | Manufacturing method for grip member for insertion tube in heat exchanger, manufacturing method for heat exchanger using said grip member, and air conditioner and/or outdoor unit having said heat exchanger |
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CN113319563A (zh) * | 2021-06-22 | 2021-08-31 | 全椒赛德利机械有限公司 | 基于管片式散热器的自动上料穿管机构 |
CN113319563B (zh) * | 2021-06-22 | 2022-04-08 | 全椒赛德利机械有限公司 | 基于管片式散热器的自动上料穿管机构 |
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