KR101773663B1 - core assembly for heat exchanger manufacturing method - Google Patents
core assembly for heat exchanger manufacturing method Download PDFInfo
- Publication number
- KR101773663B1 KR101773663B1 KR1020150071909A KR20150071909A KR101773663B1 KR 101773663 B1 KR101773663 B1 KR 101773663B1 KR 1020150071909 A KR1020150071909 A KR 1020150071909A KR 20150071909 A KR20150071909 A KR 20150071909A KR 101773663 B1 KR101773663 B1 KR 101773663B1
- Authority
- KR
- South Korea
- Prior art keywords
- tube bar
- pair
- core assembly
- bending
- pin
- Prior art date
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
- F28F3/10—Arrangements for sealing the margins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
- F28F9/06—Arrangements for sealing elements into header boxes or end plates by dismountable joints
- F28F9/14—Arrangements for sealing elements into header boxes or end plates by dismountable joints by force-joining
-
- 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
- F28F2275/10—Fastening; Joining by force joining
Abstract
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a core assembly constituting a heat exchanger for cooling a fluid such as cooling water or oil, and more particularly to a core assembly having a bending section at an outer end of a lower and an upper plate, Since the alignment position of the pin and the tube bar is divided through the engaging jaw and the bending portion, the assembling property is improved, the dimensional stability is enhanced, the joining is performed at the inclined portion of the engaging jaw and the inclined surface of the tube bar, And more particularly, to a core assembly for a heat exchanger and a method of manufacturing the core assembly.
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a core assembly constituting a heat exchanger for cooling a fluid such as cooling water or oil, and more particularly to a core assembly having a bending section at an outer end of a lower and an upper plate, Since the alignment position of the pin and the tube bar is divided through the engaging jaw and the bending portion, the assembling property is improved, the dimensional stability is enhanced, the joining is performed at the inclined portion of the engaging jaw and the inclined surface of the tube bar, And more particularly, to a core assembly for a heat exchanger and a method of manufacturing the core assembly.
Generally, in driving an engine such as a ship or an automobile, the temperature of the combustion gas in the combustion chamber reaches 2,000 DEG C or more, and a considerable amount of this temperature is conducted to the cylinder, the cylinder head, the piston, and the valve.
If the temperature of such a portion becomes excessively high, the strength of the component material is lowered, resulting in failure, shortening the life span, and deteriorating the combustion state, resulting in knocking or early ignition.
Further, in the state where the cooling is incomplete, the lubricating function such as the breakage of the oil film on the cylinder wall may be deteriorated and the cooling water may be deteriorated, resulting in abnormal wear, pressing, or the like. On the contrary, if the engine is over cooled, the amount of heat lost due to cooling is large among the heat generated from the combustion, so that the thermal efficiency of the engine is lowered and the fuel consumption is increased. In this way, the cooling water (heating medium) that has passed through the engine and is heated must be cooled to a proper level through a heat exchanger. As with cooling water, engine oil and mission oil are essentially used to drive the engine. Oil (heat medium) lubricates mechanical parts such as engine cylinders and crankshafts to reduce friction and disturbances, It should be cooled through a machine.
7A is an enlarged view of part A of FIG. 7A. Referring to FIG. 7A, the heat exchanger includes an
The core assembly is formed by first assembling the respective components of the core assembly and completing the assembly through brazing, joining the upper and lower tanks to the core assembly, and joining pipes for supplying and discharging cooling water to the upper and lower tanks ≪ / RTI >
The
The heating medium unit is composed of a pin inserted between the lower and upper plates, and a tube disposed at both ends of the fin. The plate and the tube bar are alternately laminated, so that brazing is performed on the upper and lower surfaces of the tube bar.
However, there is a problem in that the assembling process is complicated because the position where the plate and the pin and the tube bar are placed are not partitioned, and when they are not placed at the time of stacking or when the position is changed during assembly, defects occur. In addition, since the joining is performed only on the top and bottom surfaces of the tube bar, development of a core assembly having a structure capable of improving oil tightness, bonding strength and pressure resistance can be obtained when joining is not completed in some parts It is necessary.
SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a bending part at the outer end of lower and upper plates, To provide a core assembly for a heat exchanger and a manufacturing method thereof.
Further, the object of the present invention is to provide an apparatus and a method for assembling the tube and the tube bar in which the alignment position of the fin and the tube bar is divided through the stopping jaw and the bending portion to improve the assemblability and the dimensional stability, And an airtightness at the interface is improved to prevent the heat medium from leaking, and a method for manufacturing the core assembly.
To this end, the core assembly for a heat exchanger according to the present invention is a method for manufacturing a core assembly for a heat exchanger in which a heating medium unit through which a heating medium flows and an air unit through which air exchanges heat with the heating medium are alternately stacked, Wherein a pair of bending portions are formed by bending both ends of the bending portion, and a pair of latching jaws are formed in parallel with the bending portion inside the bending portion, wherein a pin connecting portion is provided on the inner side with respect to the latching jaw, A tube bar joint portion and a bending portion bent at the tube bar joint portion are provided; A step S2 of laminating a tube bar on the tube bar joint portion divided by the bending portion and the engagement jaw of the lower plate, and laminating a pin on the pin joint portion defined by the pair of engagement jaws; A step S3 of stacking the upper plate so that the tube bar stacked in the step S2 is disposed on the tube bar joint part defined by the bending part of the upper plate and the engaging jaw; A step S4 of laminating an air pin on the upper plate and a pair of head bars disposed on both ends of the air pin; And a step S5 of joining the core assembly formed by sequentially repeating the steps S1 to S4, wherein at least a cladding layer is formed on the tube bar, the lower and upper plates, and the core assembly The tubular bar is joined to the lower plate by a brazing method in which the clad layer is heated and melted. The tubular bar has a hook, a tube bar and a bending part provided on the lower plate, a hook, a tube bar, Wherein the tube bar has a pair of inclined surfaces disposed in a triangular shape at an inner end thereof and a vertical surface at an outer end thereof and a pair of horizontal surfaces connecting the pair of inclined surfaces to the vertical surface, The "
And the pair of inclined surfaces are in surface contact with the inclined portions respectively provided at the engagement protrusions of the lower and upper plates and the vertex area of the inner end where the pair of inclined surfaces meet is formed in the lower and upper plates And the pair of horizontal surfaces and the vertical surfaces are brought into surface contact with the tube bar joint portion and the bending portion respectively provided on the lower and upper plates so that the pin and the tube bar are stacked on the lower plate in Step S2, And the fin and the tube bar can be aligned at an accurate position merely by laminating the upper plate in the step S3, thereby improving the assembling property.delete
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SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a core assembly for a heat exchanger and a method of manufacturing the same, in which a bending portion is provided at an outer end of a lower and an upper plate, The strength and the pressure resistance can be improved.
In addition, the core assembly for a heat exchanger and the method of manufacturing the same according to the present invention can improve the assemblability and the dimensional stability because the alignment positions of the fin and the tube bar are separated through the engagement jaw and the bending portion, Since the joining is carried out at the inclined surface of the bar, the airtightness at the interface is improved and the heating medium such as oil or water can be more reliably prevented from being counted.
FIG. 1 is a perspective view showing a heat exchanger equipped with a core assembly according to the present invention, FIG. 2 is a front view of FIG. 1, and FIG. 3 is a plan view showing a laminated structure of an air unit and a heating medium unit.
FIG. 4 is a perspective view showing a heating medium unit according to the present invention, FIG. 5 is a plan view of FIG. 4, and FIG. 6 is a sectional view of FIG.
FIG. 7A is a perspective view showing a conventional heat exchanger, and FIG. 7B is an enlarged view of a portion A in FIG. 7A.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, the terms described below are defined in consideration of the functions of the present invention, and these may vary depending on the intention of the user, the operator, or the precedent. Therefore, the definition should be based on the contents throughout this specification.
FIG. 1 is a perspective view showing a heat exchanger equipped with a core assembly according to the present invention, FIG. 2 is a front view of FIG. 1, and FIG. 3 is a plan view showing a laminated structure of an air unit and a heating medium unit.
1 to 3, the core assembly according to the present invention is used in a heat exchanger for cooling a heating medium with air as a refrigerant. The core assembly includes an
The heating medium may be oil or water.
The high-temperature oil circulating around the engine, etc. of the vehicle flows into the
The
The
The
FIG. 4 is a perspective view showing a heating medium unit according to the present invention, FIG. 5 is a plan view of FIG. 4, and FIG. 6 is a sectional view of FIG.
4 to 6, the
A
When the outer end surface of the
By providing the
The lower and
The hooking
The
The
Hereinafter, preferred embodiments of a method of manufacturing a core assembly for a heat exchanger according to the present invention will be described in detail.
The method for manufacturing a core assembly for a heat exchanger according to the present invention is characterized in that the lower and
In step S1, the bending
Since the engaging
The hooking
As described above, when the inner end of the
A clad layer (not shown) is formed on at least surfaces of the
Consequently, by providing the bending portions at the outer ends of the lower and upper plates, it is possible to widen the bonding area between the tube bars and improve the bonding strength and the pressure resistance.
In addition, since the alignment position of the pin and the tube bar is divided through the engaging jaw and the bending portion, the assembling property is improved, the dimensional stability is enhanced, and the inclined portion of the engaging jaw is joined to the inclined portion of the tube bar, Can be improved to more reliably prevent leakage of heat medium such as oil or water.
While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities. Accordingly, the scope of the present invention should be construed as being limited to the embodiments described, and it is intended that the scope of the present invention encompasses not only the following claims, but also equivalents thereto.
100: Heat exchanger 110: Upper tank
111: Heating medium inlet port 120: Lower tank
121: heating medium outlet 130: core assembly
133: core guard 140: first space part
150: second space part 151: air unit
152: Air pin 153: Head bar
154: head bar body 155: heat transfer part
160:
163: Bending section 165:
166: an inclined portion 167: a pin joint
168: tube bar junction 180: pin
190: tube bar 191: incline
Claims (7)
A pair of bending portions are formed by bending both ends of the lower and upper plates so as to form a pair of hooks parallel to the bending portion on the inner side of the bending portion, A step S1 of providing a tube bar joint and a bending part bent at the tube bar joint;
A step S2 of laminating a tube bar on the tube bar joint portion divided by the bending portion and the engagement jaw of the lower plate, and laminating a pin on the pin joint portion defined by the pair of engagement jaws;
A step S3 of stacking the upper plate so that the tube bar stacked in the step S2 is disposed on the tube bar joint part defined by the bending part of the upper plate and the engaging jaw;
A step S4 of laminating an air pin on the upper plate and a pair of head bars disposed on both ends of the air pin;
(S5) of bonding the core assembly formed by sequentially repeating steps (S1) to (S4)
A cladding layer is formed on at least the tube bar, the lower and upper plates, and the core assembly of the step S5 is joined by a brazing method in which the cladding layer is heated and melted,
Wherein the tube bar is aligned with a seating space defined by a latching jaw, a tube bar joint and a bending portion provided on the lower plate, a latching jaw provided on the upper plate, a tube bar joint, and a bending portion,
Wherein the tube bar has a pair of inclined surfaces arranged in a triangular shape at an inner end thereof, a vertical surface at an outer end thereof, and a pair of horizontal surfaces connecting the pair of inclined surfaces to a vertical surface, "It is done in form,
Wherein the pair of inclined surfaces are in surface contact with the inclined portions provided on the engaging jaws of the lower and upper plates, and the vertex area of the inner end where the pair of inclined surfaces meet is sandwiched between a pair of engaging jaws Wherein the pair of horizontal surfaces and vertical surfaces are in surface contact with the tube bar joint portion and the bending portion provided on the lower and upper plates, respectively,
The pin and the tube bar are stacked on the lower plate in the step S2 and the fin and the tube bar are aligned with each other only by laminating the upper plate in the step S3 so that the assembling property is improved. Assembly manufacturing method.
Priority Applications (1)
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KR1020150071909A KR101773663B1 (en) | 2015-05-22 | 2015-05-22 | core assembly for heat exchanger manufacturing method |
Applications Claiming Priority (1)
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KR1020150071909A KR101773663B1 (en) | 2015-05-22 | 2015-05-22 | core assembly for heat exchanger manufacturing method |
Related Child Applications (1)
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KR1020160173958A Division KR101773723B1 (en) | 2016-12-19 | 2016-12-19 | core assembly for heat exchanger |
Publications (2)
Publication Number | Publication Date |
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KR20160137172A KR20160137172A (en) | 2016-11-30 |
KR101773663B1 true KR101773663B1 (en) | 2017-08-31 |
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KR1020150071909A KR101773663B1 (en) | 2015-05-22 | 2015-05-22 | core assembly for heat exchanger manufacturing method |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2543973Y2 (en) | 1990-06-29 | 1997-08-13 | 株式会社テネックス | Heat exchanger |
JP2000141028A (en) * | 1998-11-04 | 2000-05-23 | Denso Corp | Plate for brazing and manufacture of heat exchanger |
JP2014214897A (en) * | 2013-04-23 | 2014-11-17 | 昭和電工株式会社 | Heat exchanger |
-
2015
- 2015-05-22 KR KR1020150071909A patent/KR101773663B1/en active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2543973Y2 (en) | 1990-06-29 | 1997-08-13 | 株式会社テネックス | Heat exchanger |
JP2000141028A (en) * | 1998-11-04 | 2000-05-23 | Denso Corp | Plate for brazing and manufacture of heat exchanger |
JP2014214897A (en) * | 2013-04-23 | 2014-11-17 | 昭和電工株式会社 | Heat exchanger |
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Publication number | Publication date |
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KR20160137172A (en) | 2016-11-30 |
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