KR20120111981A - Heat exchanger - Google Patents

Abstract

PURPOSE: A heat exchanger is provided to minimize an error rate by securely assembling radiation fins to radiation pin joints of a main body and to reduce water contamination because lead is not required. CONSTITUTION: A heat exchanger comprises a main body. The main body is vertically divided into upper and lower bodies(8,9) and is horizontally divided into a radiator(2), an oil cooler(3), and a condenser(4). Heat exchanger pipes(6) are assembled to coupling holes formed on the upper and lower bodies. Radiation fins(7) are assembled between the heat exchange pipes. The radiator, the oil cooler, and the condenser have upper inlets(16) connected to fluid paths(11) of the heat exchange pipes and lower outlets(17).

Description

Heat exchanger

The present invention relates to a heat exchanger, and more particularly, a radiator and an oil cooler used in automobiles, tractors, excavators, forklifts, etc. to cool, a condenser for cooling and heating air conditioners, and an auxiliary bucket using a lightweight synthetic resin material to produce a split body. It is to provide a heat exchanger to fix (heat, vibration) fusion, improve heat exchange efficiency and maximize heat dissipation, and improve manufacturing convenience.

In general, automobiles, tractors, excavators, forklifts, etc. to circulate the cooling water or oil to cool the high temperature heat generated from the engine, power steering oil, etc. to radiate heat through a heat exchanger such as a radiator or oil cooler.

Since radiators and oil coolers are manufactured separately and mounted inside an engine room such as a car, manufacturing costs are high, and a lot of time is required for the assembly and installation process, and workability is deteriorated, and space occupies a lot. There was an urgent need for a solution to this problem.

In addition, in the case of air conditioners for cooling and heating, the heat exchange of the refrigerant is performed through a condenser. In general, non-metallic pipes of outdoor units for air conditioning and heating are used when the temperature drops below 5 degrees below zero. There was a discontinuance.

In order to solve this problem, the inventor of the present invention has applied for a 'heat exchanger' of an improved configuration.

That is, in Korean Patent Application No. 10-2010-0019125, in the construction of a heat exchanger, a condenser such as a radiator, an oil cooler, an auxiliary bucket, and a heating / cooling air conditioner is manufactured using a lightweight synthetic resin material, which is divided into two parts, to be fused and fixed. The heat dissipation fins can be firmly assembled to the heat dissipation fin coupling portion of the main body to minimize low carbon emissions, simplify the manufacturing process, reduce cost, ease of installation, space occupancy, and disclose a heat exchanger having excellent heat dissipation. The patented invention has a limitation in increasing the surface area for heat exchange because the fluid passage through the fluid is simply made of a tubular body, and therefore, the improvement in heat exchange efficiency is inevitably limited.

And since the whole body is formed by fusion of front and rear nutrients, the fusion surface is wide, and the synthetic resin liquid flows down when performing the fusion operation, and the post-processing process must be performed after fixing and fixing the main body. Was also holding.

In addition, the welding surface was large, so it was difficult to accurately fix the welding on the mold, and the defect rate of the product was high, such that leakage occurred at the welding site because the welding surface was not accurately welded.

KR 10-2010-0019125 A 2010.03.03.

Accordingly, the heat exchanger provided in the present invention is intended to circumvent the problems of the present inventor's prior patent application in which the radiator, the oil cooler and the condenser, and the auxiliary bucket are integrally manufactured.

That is, the heat exchanger of the present invention is to provide a heat exchanger that can minimize the troublesome post-processing and product failure rate generated during the fusion operation by minimizing the fusion site.

In addition, the present invention is to provide a heat exchanger that can maximize the surface area for heat exchange to improve the excellent heat exchange efficiency and heat dissipation.

Accordingly, the present invention provides the following heat exchanger in order to achieve the above problems.

That is, according to the present invention, the upper body and the lower body are divided into upper and lower parts by using a synthetic resin material, and the main body is divided into a radiator, an oil cooler, and a condenser, and a coupling formed on the second body of the upper body. The heat exchanger pipe is fitted through the coupling hole formed in the first body of the ball and the lower body, and the heat exchanger pipes fitted in the coupling hole are fusion-fixed to each other, and the first body and the lower body on the upper part of the second body of the upper body. A second main body is fused and fixed to the lower part of the first body of the main body, and heat dissipation fins are fitted and assembled between the heat exchange pipes, and the radiator, the oil cooler, and the condenser communicate with the fluid passage and the lower outlet of the heat exchange pipe. It is characterized by.

In addition, the present invention is the heat exchanger body is divided into the upper body and the lower body up and down using a synthetic resin material, the main body is formed of a radiator, oil cooler, condenser, the second body and the lower body of the upper body The first main body of the heat exchanger pipe is assembled to the heat exchanger pipe and then the supporter-cap is fitted to the fluid passage of the heat exchanger pipe and then inserted into the injection molding machine to be configured integrally with the heat exchanger pipe during insert injection molding, 2, the first body and the lower body of the first body and the lower body of the second body is fixed to the second body, the radiator, the oil cooler, the condenser, the upper inlet is characterized in that the communication with the fluid passage and the lower outlet of the heat exchange pipe. It is done.

In addition, the present invention is characterized in that a plurality of protrusions are formed in the fluid passage of the heat exchange pipe to increase the heat transfer surface area.

In addition, the heat exchange pipe is characterized in that a metal coating layer such as aluminum (Al), copper (Cu) is formed.

The heat exchanger of the present invention is manufactured by using a lightweight synthetic resin material such as a radiator and an oil cooler, an auxiliary bucket and a cooling / heating air conditioner, which are used in automobiles, tractors, excavators, forklifts, etc., to cool down the upper and lower parts of the main body. After the assembly of the body, it is fused and fixed or insert injection molding.The heat dissipation fin can be firmly assembled to the heat dissipation fin joint of the main body. Minimized, no post-processing is required, and heat exchange efficiency can be maximized.

In addition, the present invention is a large invention that can reduce the water pollution at the same time to reduce the carbon emissions during the production of heat exchanger can also reduce water pollution, and can greatly contribute to the weight reduction of the product.

1 is a front configuration diagram of a partially disassembled state showing a preferred embodiment of the radiator provided in the present invention
Figure 2 is a perspective view showing the state before assembly of the upper body and the heat exchange pipe in the heat exchanger provided in the present invention
Figure 3 is a heat exchanger provided in the present invention, the perspective view showing the state before assembly in another embodiment of the upper body and the heat exchange pipe
Figure 4 is a heat exchanger provided in the present invention, the perspective view showing the state before assembly in another embodiment of the upper body and the heat exchange pipe
Figure 5 is a heat exchanger provided in the present invention, a perspective view showing some other embodiments for fitting the heat exchange pipe assembly in the body
Figure 6 is a perspective view of the heat exchanger body of the present invention produced by dividing the body in three directions
7 is a front configuration view showing another embodiment of the heat dissipation fin coupled to the heat exchange pipe in the heat exchanger provided in the present invention.
Figure 8 is a cross-sectional configuration of the separated state when insert injection molding by coupling the supporter-cap to the heat exchange pipe in the heat exchanger provided in the present invention
9 is a cross-sectional configuration of a state in which the insert injection molding by coupling the supporter-cap to the heat exchange pipe in the heat exchanger provided in the present invention
10 is a cross-sectional configuration of a state in which a product is completed after insert injection molding by coupling a supporter-cap to a heat exchange pipe in a heat exchanger provided in the present invention;
Figure 11 is a perspective view of the main parts extracted when insert injection molding by coupling the supporter-cap to the heat exchange pipe in the heat exchanger provided in the present invention
12 is a perspective view of the main portion of the insert injection molding when the heat exchanger pipe is provided in two or more stages in the front and rear direction in the heat exchanger provided in the present invention
13 is a planar configuration diagram when the heat exchanger pipe is provided in two or more stages in the front-rear direction in the heat exchanger provided by the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a preferred embodiment of a heat exchanger provided by the present invention.

That is, the heat exchanger 1 of the present invention injection molding the main body using a material such as nylon resin than the non-metal aluminum and the like.

The main body of the heat exchanger 1 is separately extruded so as to be installed between the upper body 8 which is injection-molded in a vertical split type, the lower body 9 which is separately injection-molded, and between the upper body 8 and the lower body 9. It consists of a plurality of heat exchange pipes (6) produced by a method such as molding, a plurality of heat radiation fins (7) assembled between the heat exchange pipes (6).

The upper body (8) comprises a radiator (2), an oil cooler (3), a condenser (4) and an auxiliary bucket (5), which are injection molded into a vertical split type.

That is, the upper main body 8 is configured to vertically divide the upper first main body 8a and the lower second main body 8b, which is fusion-fixed upper part of the heat exchange pipe 6 with the second main body 8b. It is to.

The heat exchange pipe 6, which is mainly manufactured by a method such as extrusion molding using a separate synthetic resin material, is cut into a desired length and then fitted into a coupling hole 10 formed in the second body 8b of the upper body 8. After fusion is fixed.

The heat exchange pipes 6 and the heat dissipation fins 7 may maximize the heat dissipation fins 7 and the thermal conductivity by forming a film layer such as aluminum (Al) and copper (Cu) having excellent heat transfer to a predetermined thickness.

As is generally known, a method of forming a metal film layer on the heat exchange pipe 6 and the heat dissipation fins 7 is performed. First, a chemical treatment is performed for plating in a state in which the heat dissipation fins 7 are coupled to the heat exchange pipe 6, and then the outer surface portion is formed. Electroplating is performed after the metal coating is applied to form a metal coating layer of aluminum (Al) or copper (Cu) having a predetermined thickness. When the metal film layer is formed as described above, the metal film layer fills the gap generated between the two materials when the heat exchange pipe 6 and the heat dissipation fin 7 are fitted, thereby doubling the thermal conductivity.

The shape of the heat exchange pipe 6 may be composed of a rectangular, small rectangular, long oval shape, such as a large cross section as shown in Figures 2 to 4, in order to maximize the heat transfer surface area in the fluid passage 11 therein A plurality of protrusions 12 are formed at predetermined intervals.

The upper part of the heat exchange pipe 6 is fused after fitting with the coupling hole 10 of the second body 8b, and the lower part of the coupling hole formed in the first body 9a forming the upper part of the lower body 9. (13) and it is fixed after fusion.

The fusion fixing method of the heat exchange pipe 6 may be performed using thermal fusion, vibration fusion, adhesive, or the like. For example, when the hot plate is pressed around the upper and lower coupling holes 10 and 13, the second resin is made of synthetic resin. When the surroundings of the coupling holes 10 and 13 of the main body 8b and the first main body 9a are melted and hardened in the molten state with the heat exchange pipe 6, the method is such that the thermal fusion is fixed or the coupling holes 10 and 13. When the surrounding edge is melted and pressed toward the heat exchange pipe (6), the inner portion of the coupling hole (10, 13) is melted to the center portion and thermally fused and fixed. Or various known welding methods such as vibration welding can be used.

Figure 5 is an enlarged perspective view of the main portion showing some other embodiments of the present invention.

That is, the heat exchange pipe 6 and the front surface of the second body (8b) of the upper body (8) in order to increase the convenience when fitting the fitting holes (10, 13) of the upper body (8) and the lower body (9) The front surface of the first body 9a of the lower body 9 can be closed using a separately manufactured panel 14, and the front surfaces of the coupling holes 10 and 13 are opened to form a heat exchange pipe 6 ) Can be assembled from the front.

That is, since the front surface of the coupling holes 10 and 13 is open, the heat exchange pipe 6 is first assembled into the front surface, and then the panel 14 is connected to the second body 8b and the lower body 9 of the upper body 8. The first main body 9a is fixed by heat fusion or the like, and the heat exchange pipe 6 coupled to the coupling holes 10 and 13 is fixed by heat fusion or the like.

6 is a perspective view showing another embodiment of the present invention.

That is, the case where it is possible to manufacture by dividing the main body into three equal parts in the front-rear direction at the time of making the front and rear thickness of the heat exchanger 1 thick is illustrated.

FIG. 7 shows another embodiment of the present invention, in which heat dissipation fins 7 having coupling holes equal to the cross-sectional shape of heat exchange pipes 6 are sequentially coupled to the heat exchange pipes 6 in the vertical direction. This is to make the heat exchange pipe 6 and the heat dissipation fin 7 separately, and then insert the mold into the mold more easily when the main body is injection molded, so as to maximize the speed and convenience of the work during the molding by the insert molding method. It is.

Meanwhile, the present invention manufactures the heat exchange pipe 6 and the heat dissipation fin 7 which are coupled through the coupling holes 10 and 13 separately, and inserts the main body into the mold during injection molding, and then inserts the mold into the insert injection molding method. You can maximize your writing.

As such, when inserting the heat dissipation fins 7 into the heat exchange pipes 6 and performing insert injection molding into the injection molding machine, the gaps in which the heat exchange pipes 6 made of synthetic resin are deformed or deformed due to the high pressure and temperature of the injection machine The injection of molten resin, which is intended to be injected into the furnace, is very likely to cause insert injection molding or defects.

In order to solve this problem, as shown in FIGS. 8 to 11, supporter caps (support caps) 18 are fitted to both ends of the fluid passage 11 of the heat exchange pipe 6.

The supporter-cap 18 is made of a material having heat resistance and pressure resistance to protect and support the heat exchange pipe 6 so as not to deform even at high temperature and high pressure generated in the injection molding machine when insert injection molding is performed.

After insert injection molding is completed, the supporter-cap 18 is separated from the fluid passage 11 of the heat exchange pipe 6.

12 and 13 are a cross-sectional view and a plan view showing another embodiment of the present invention.

That is, since the width of the heat exchanger pipe 6 of the heat exchanger 1 is narrow and the height can be increased, the thickness of the heat exchanger 1 can be thickened by making the heat exchanger pipe 6 at least two stages before and after. In this case, in this case, the second body 8b of the upper body 8 is injection molded separately using a synthetic resin material, and then fitted to the upper part of the heat exchange pipe 6, and a separate support body 19 is formed. 2 Assemble the assembly to have a predetermined distance in the lower part of the main body 8b, and then insert it into a mold and insert injection molding as in the embodiment described above to fill the synthetic resin material between the second main body 8b and the support main body 19 while the second is filled. The main body 8b and the support main body 19 are to be fixed in a state in which two or more steps are coupled back and forth.

In the figure, reference numeral 15 is a bracket, 16 is an inlet, 17 is an outlet, and 20 is a mold.

The heat exchanger of the present invention, which can be variously implemented as described above, is first integrated with a radiator 2 and an oil cooler 3, a condenser 4, and an auxiliary bucket 5 when mounted on various equipment such as an automobile. There is an advantage that can be easily mounted in the mounting position using the bracket 15, as well as packaging, transport, and also has the advantage of minimizing the space occupancy.

In addition, the main body of the heat exchanger (1) is injection molded using a synthetic resin material, and the first body for fixing the upper body (8) and the lower body (9) by fitting heat exchange pipes (6), and then fixing them by thermal fusion or the like. (8a, 9a) and the second body (8b, 9b) divided by minimizing the heat-sealed portion can minimize the defective rate when the product is completed, heat exchange pipe (6) and heat radiation fins (7) by assembling the injection molding machine It is also possible to manufacture the heat exchanger 1 by using the insert injection molding method by inserting.

In addition, a plurality of protrusions 12 are formed in the fluid passage 11 of the heat exchange pipe 6, and a metal film layer such as aluminum and copper having excellent thermal conductivity is formed on the heat exchange pipe 6 and the heat dissipation fin 7 to heat transfer surface area. To maximize the heat exchange efficiency will be increased.

In addition, the heat dissipation fins (7) are sandwiched between the heat exchange pipes (6), so it is very easy to handle with light weight, and the installation is completed by connecting only the piping lines to the inlet (16) and the outlet (17). It is.

In addition, fluids and gases such as cooling water, cooling oil, and refrigerant introduced through the inlet 16 into the radiator 2, the oil cooler 3, and the condenser 4, respectively, are naturally dropped through the fluid passage 11 while the fluid flows down naturally. The heat exchange is made through the heat dissipation fins 7 outside the passage 11, which can minimize the pressure by a natural dropping method.

And since the synthetic resin material constituting the heat exchanger (1) is made of a synthetic resin material such as nylon resin, the heat dissipation effect is superior to that of aluminum (Al), copper (Cu), etc. at room temperature, so that the heat dissipation effect is reduced. In addition, through the fluid passage 10, the fluid discharged to the outlet 17 is continuously circulated to the cooling line of the engine, the air conditioner, etc. to efficiently perform the heat exchange operation.

It will be apparent to those skilled in the art that various modifications, substitutions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. will be.

Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by the embodiments and the accompanying drawings.

The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

The heat exchanger of the present invention is a radiator, an oil cooler, a condenser, an auxiliary bucket, and the like by using a synthetic resin to minimize the manufacturing process and maximize the cost reduction and heat dissipation.

DESCRIPTION OF SYMBOLS 1 Heat exchanger 2: Radiator 3: Oil cooler 4: Condenser 5: Auxiliary bucket 6: Heat exchange pipe 7: Heat dissipation fin 8: Upper main body 8a: 1st main body 8b: 2nd main body 9: Lower main body 9a: 1st main body 9b: 2nd main body 10: coupling hole 11: fluid passage 12: protrusion 13: coupling hole 14: panel 18: supporter-cap 19: support body

Claims (4)

In constructing a heat exchanger;
The heat exchanger body is divided into an upper body and a lower body up and down using a synthetic resin material,
The main body is divided into a radiator, an oil cooler, a condenser,
Through the coupling hole formed in the second body of the upper body and the coupling hole formed in the first body of the lower body to sandwich the heat exchange pipe,
The heat exchanger pipes fitted in the coupling holes are fused and fixed to each other,
The first body and the second body below the first body of the lower body to the upper portion of the second body of the upper body fusion-fixed,
Heat dissipation fins are fitted between the heat exchange pipes,
The radiator, the oil cooler, the condenser has an upper inlet port is in communication with the fluid passage and the lower outlet of the heat exchange pipe. In constructing a heat exchanger;
The heat exchanger body is divided into an upper body and a lower body up and down using a synthetic resin material,
The main body is divided into a radiator, an oil cooler, a condenser,
The second body of the upper body and the first body of the lower body is assembled with the heat exchanger pipe when inserting the injection molding machine by inserting the supporter-cap into the fluid passage of the heat exchanger pipe after assembling the heat dissipation fin to the heat exchanger pipe and inserting the injection molding machine. To be able to
The first body and the second body below the first body of the lower body to the upper portion of the second body of the upper body fusion-fixed,
The radiator, the oil cooler, the condenser has an upper inlet port is in communication with the fluid passage and the lower outlet of the heat exchange pipe. In constructing a heat exchanger;
The heat exchanger body is divided into an upper body and a lower body up and down using a synthetic resin material,
The main body is divided into a radiator, an oil cooler, a condenser,
The second body of the upper body and the first body of the lower body are separately injection-molded a synthetic resin material and assembled heat dissipation fins in heat exchange pipes of two or more stages before and after, and then injection molding the support body with a separate synthetic resin material on the lower part of the second body. To the heat exchange pipe,
After inserting the supporter-cap into the fluid passage of the heat exchange pipe, the insert is inserted into the injection molding machine so that the synthetic resin material is filled between the second body and the support body during the injection molding process so that the heat exchange pipe can be integrally formed.
The first body and the second body below the first body of the lower body to the upper portion of the second body of the upper body fusion-fixed,
The radiator, the oil cooler, the condenser has an upper inlet port is in communication with the fluid passage and the lower outlet of the heat exchange pipe. 4. The method according to any one of claims 1 to 3,
And a metal coating layer such as aluminum (Al) and copper (Cu) on the heat exchange pipe and the heat dissipation fin.

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