KR101011972B1 - Fin block-unit for heat exchanger and method of manufacturing the same - Google Patents

Abstract

PURPOSE: A fin block unit for a heat exchanger and a manufacturing method thereof are provided to enable the formation of mutual heat exchange structure, between cooling water and air, inside a unit body. CONSTITUTION: A fin block unit for a heat exchanger is formed of a unit body(U). The unit body comprises a body(10), a first rectangular flange(20), a second rectangular flange(30), multiple cooling water flow parts(40), and multiple air flow parts(50). The first rectangular flange and the second rectangular flange are placed on the top and the bottom of the body. The cooling water flow part passes through the body. The air flow part passes through the body and the second rectangular flange. The front-end of the first rectangular flange is projected more than the front-end of the second rectangular flange. The back-end of the second rectangular flange is projected more than the back-end of the first rectangular flange.

Description

Fin block unit for heat exchanger and manufacturing method thereof {FIN BLOCK-UNIT FOR HEAT EXCHANGER AND METHOD OF MANUFACTURING THE SAME}

The present invention relates to a fin block unit used for a heat exchanger and a method of manufacturing the same, and in particular, by connecting a plurality of units to implement an alternating flow structure of the coolant, to improve the heat exchange efficiency fin block A unit and a method for manufacturing the same by casting molding casting thereof.

As a technology regarding a heat exchanger and this manufacturing method,

Korean Patent Publication No. 10-2004-0080830 (published Sep. 20, 2004, hereinafter referred to as 'prior art') `` Fin-tube integrated heat exchanger and its manufacturing method '' is proposed,

In the heat exchanger according to the prior art, the refrigerant is circulated inside, and a refrigerant pipe in which heat is exchanged with external air, and cooling fins for expanding the heat exchange area of the refrigerant pipe are integrally extruded and bent in multiple stages, and both ends of the refrigerant pipes are formed. Since the refrigerant is configured to be fixed by the support, the refrigerant circulates inside the refrigerant pipe, and when the heat exchange with the outside air, the heat transfer performance is excellent because the heat transfer performance is transferred to the cooling fins and the heat transfer efficiency is improved, and defrost efficiency This is an improved technology.

In addition, the method for manufacturing a heat exchanger according to the prior art performs the extrusion process of integrally extruding a refrigerant pipe through which the refrigerant can flow and a plate-shaped cooling fin forming unit, and a cooling fin integrally formed in the extruded refrigerant tube. Performing a cooling fin forming process of forming a cooling fin integrally with the refrigerant pipe by processing the forming unit, and performing a refrigerant pipe bending process of bending the refrigerant pipe having the cooling fin formed in a predetermined shape; The technology characterized in that the step of performing the support assembly process of assembling the support at both ends of the step by step.

The heat exchanger according to the prior art has to be applied only to a place that meets the performance of the heat exchanger in a pre-fabricated state, and uses a separate connection device for use in a place that requires more performance than the heat exchanger has. Therefore, there is a problem of connecting each heat exchanger or installing a plurality of heat exchangers.

In addition, the method for manufacturing a heat exchanger according to the prior art integrally forms the refrigerant pipe and the cooling fin forming unit by extrusion, processes the cooling fin forming unit, bends the refrigerant pipe into a predetermined shape, and finally supports the both ends of the refrigerant pipe. As it is completed through the process of assembling, the manufacturing process is complicated and there is a difficulty in manufacturing.

The conventional heat exchanger manufacturing method as well as the prior art is to perform a process of assembling each other by manufacturing the parts by extrusion or by pressing a more easy manufacturing method is required.

In order to solve the above problems, the heat exchanger fin block unit according to the present invention,

body;

First and second rectangular flanges arranged on each of the upper and lower parts of the body;

A plurality of cooling water distribution parts formed through the front and rear of the body; And

A plurality of air flow units formed to penetrate up and down from the first square flange to the body and the second square flange, and formed between the cooling water flow passages;

Consists of units containing

A front end of the first square flange protrudes more than a front end of the second square flange,

A rear end portion of the second square flange protrudes from a rear end portion of the first square flange.

And two or more units are interconnected in a line to form an aggregate,

Each of the first square flanges or each of the second square flanges in the two adjacent units is characterized in that the front and rear ends are connected to be in contact with each other.

On the other hand, in order to solve the above problems, the manufacturing method of the heat exchanger fin block unit according to the present invention,

A cavity for forming the body and the first and second rectangular flanges in the unit, and a plurality of coolant side and air side cores for forming each coolant flow unit and each air flow unit in the unit, and the coolant side A plurality of recesses arranged at the top of the core for smooth inflow of the casting, and interconnected adjacent recesses arranged at the top of each of the air-side cores, but having a smaller space area than the recesses. Preparing a mold including a plurality of ridges;

Injecting casting into the cavity of the mold;

Demolding the molded molded intermediate from the mold; And

Cutting and removing the molded portions filled in the recesses and the ridges in the demolded intermediate finished product, and cutting and removing the air flow parts so as to be visible;

It is made, including.

Each recess is characterized in that the space area is gradually expanded in the direction in which the casting flows in.

Fin block unit for a heat exchanger and a manufacturing method thereof according to the present invention,

The structure for mutual heat exchange between the coolant and the air is integrally implemented in one unit, and in particular, two or more units are interconnected by welding or the like, and a housing for the cover is provided therein to enable the implementation of an alternate flow structure of the coolant. It is effective to select and connect the proper quantity according to the required performance.

In addition, it is possible to manufacture one or two or more units at the same time by using a molding die, there is an effect capable of mass production.

In addition, there is an effect that can reduce the defective rate that can be generated because the casting injected during the molding casting is not completely filled.

1 is a three-dimensional block diagram and a rear configuration diagram showing a unit of a pin block unit according to the present invention,
2 is a plan view of FIG.
3 is a side configuration diagram of FIG. 1;
4 is a use state diagram according to the first embodiment of FIG. 1;
5 is a use state diagram according to the second embodiment of FIG. 1;
6 is a bottom configuration diagram showing a partial configuration of a mold for molding a unit of a pin block unit;
7 is a plan view showing a part of the configuration of the mold for molding the unit block of the pin block unit;
8 is a partial plan view showing the two recesses and the forward and backward driving means of the mold;
9 is a partial side view showing the casting movement path by the recess and the ridge of the mold;
10 is a plan view showing the intermediate finished demoulded from the mold,
11 is a manufacturing method flowchart.

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

Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the ordinary or dictionary meanings, and the inventors properly define the concept of terms in order to explain their invention in the best way. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that it can. Therefore, the embodiments described in the specification and the configuration shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various equivalents that may be substituted for them at the time of the present application It should be understood that there may be water and variations.

As shown in Figure 1 to 5, the heat exchanger fin block unit according to the present invention,

It is composed of a unit (U) including a body 10, the first and second rectangular flanges (20, 30), the cooling water flow section 40 and the air flow section (50).

Looking at each configuration,

Body 10 is

As shown in FIG. 1,

It is made of square pillar shape.

The first and second rectangular flanges 20 and 30 are

As shown in Figures 1 to 3,

It is arranged in each of the upper and lower body 10,

It consists of a square plate shape.

In this case, edges of the first and second rectangular flanges 20 and 30 are formed to protrude outward from the upper and lower surfaces of the body 10, respectively.

In particular, as shown in FIG. 3, the front end of the first square flange 20 protrudes more than the front end of the second square flange 30.

The rear end portion of the second square flange 30 protrudes from the rear end portion of the first square flange 20.

As shown in FIG. 2, the rear end of the second square flange 30 is visible when viewed from a plane, and the front end of the first square flange 20 is visible when viewed from the bottom.

Cooling water distribution unit 40

As shown in Figures 1 to 3,

For the distribution of incoming coolant,

It consists of a plurality of long hole types formed through the front and rear of the body (10).

At this time, the long hole type means a structure formed long vertically.

Each of the cooling water distribution parts 40 is formed at a predetermined interval in the horizontal direction of the body 10.

Air distribution unit 50

As shown in Figures 1 and 2,

For distribution of incoming air,

The first square flange 20 is formed through the body 10 and the second square flange 30 up and down, the plurality of long hole type is formed so as to sandwich each of the cooling water flow section 40 between. Is done.

The long hole type means a structure formed long before and after.

Each of the air flow units 50 is divided into a plurality of powder flow units 51 by partition walls 52 arranged at regular intervals in the front-rear direction.

Accordingly, each of the cooling water flow units 40 and the air flow units 50 form a non-communication structure with each other.

Unit (U) consisting of the above configuration

As a first embodiment, only one unit U may be implemented as a fin block unit for a heat exchanger.

As a second embodiment, it is possible to implement a fin block unit for a heat exchanger by connecting a plurality of units (U) to form one aggregate (A).

In a first embodiment,

As shown in FIG. 4, the unit U is configured to surround the circumference of the body 10 so as to be in close contact with each of both ends and the front and rear ends of the first and second rectangular flanges 20 and 30. And a unit housing 1 configured to have a cooling water inlet 1a and a cooling water outlet 1b in front and rear, respectively, so that the cooling water supplied to the inlet 1a is connected to the respective cooling water distribution parts 40. In this case, heat exchange with the air passing through each of the air flow units 50 is made, and finally, it is discharged through the outlet 1b.

In a second embodiment,

As shown in FIG. 5, a collective housing 2 for one aggregate A in which two or more units U are interconnected is provided.

More specifically, two or more units (U) are interconnected in a line to form one aggregate (A),

The front and rear ends of each first square flange 20 or each second square flange 30 in two adjacent units U are abutted and connected to each other to form an aggregate A.

For example, in the state in which the four units (U) are arranged in a line to be connected to each other in order from the top to the lower direction, the second square flange 30 and the second unit (U) of the first unit (U) Of the second square flange 30 is connected to each other by welding,

The first square flange 20 of the second unit U and the first square flange 20 of the third unit U are connected to each other by welding or the like.

The second square flange 30 of the third unit U and the second square flange 30 of the fourth unit U are connected to each other by welding or the like, thereby completing one assembly A.

At this time, the protruding end and the second square of the first square flange 20 connected by welding while being in close contact with both ends of the first and second rectangular flanges 20 and 30 of the unit U in the assembly A. It is configured to be in close contact with the protruding end of the flange 30, and also the inlet 2a in front or rear of the first unit (U), the outlet (2b) in front or rear of the last (here fourth) unit (U) By having a collective housing (2) configured to have a), the cooling water supplied to the inlet (2a) is passed through the cooling water distribution unit 40 of each unit (U), wherein the air distribution unit of each unit (U) Heat exchange with the air passing through the 50 is made, and finally discharged through the outlet (2b).

Looking at the flow of cooling water in the assembly (A) provided with the assembly housing (2),

Coolant

Passing through the inlet (2a) of the assembly housing (2)

Passing through the coolant distributor 40 of the first unit (U),

The coolant distribution of the second unit (U) through the gap space (S) between the front end of each second square flange (30) of the first unit (U) and the second unit (U) and the assembly housing (2) Past part 40,

The coolant distribution of the third unit (U) through the gap space (S) between the rear end of each first square flange (20) of the second unit (U) and the third unit (U) and the inner housing (2) Passing section 40,

The coolant distribution of the fourth unit (U) is passed through the gap space (S) between the front end of each second square flange (30) of the third unit (U) and the fourth unit (U) and the inner housing (2) Passing through the portion 40 is discharged through the outlet (2b) of the collective housing (2).

As a result, the cooling water has an alternating flow structure in the aggregate A provided with the collective housing 2.

On the other hand, the molding die for molding (M) for manufacturing a fin block unit for heat exchanger having the above configuration,

The lower body 100, the advancing body 200, the air side core 300, the coolant side core 400, the upper body 500, the recess 600 and the bulge 700.

Looking at each configuration,

The lower body 100

As shown in FIG.

Casting transport path 110, and

Concave-type mounting portion 120 formed at the end of the conveying path (110)

It is made, including.

At this time, the mounting portion 120 has a concave structure of the shape of the elongated front and rear.

Entering body 200

As shown in FIG. 8 and “A” of FIG. 8,

A pair is provided to each of the mounting portion 120 before and after,

The two receding bodies 200 are arranged on the mounting part 120 of the lower body 100 so as to be slid back and forth and, when contacted with each other, the body 10 and the first and second rectangular flanges 20 in the unit U. 30) to form a cavity 210 for molding.

In addition, the two backward bodies 200 are moved forward and backward by the forward and backward driving means 220, respectively.

The forward and backward driving means 220 includes a rod 221 connected to each of the progressive bodies 200, a plate 222 coupled to an end of the rod 221, and a piston 223 connected to the plate 222. And a body 224 for wrapping the piston 223 and operating the piston 223 forwards and backwards in response to the inflow of oil.

The air side core 300

As shown in FIG. 8 and “A” of FIG. 8,

Arranged in the cavity 210 for forming each air flow unit 50 in the unit (U),

As a result, a plurality of units are provided in the unit U to match the powder flow units 51 of the air flow units 50.

The coolant side core 400

As shown in FIG. 8 and “A” of FIG. 8,

It is arranged between the two advancing body 200 which is in contact with each other for forming the cooling water distribution unit 40 in the unit (U),

As a result, a plurality of units are provided in the unit U to fit each cooling water distribution part 40.

And each of the cooling water side core 400 is composed of two powders (410, 420) formed in each of the two advancing bodies 200,

The two powders 410 and 420 are formed on respective inner walls of the two advancing bodies 200.

Therefore, the two powders 410 and 420 which are separated into two are in contact with each other while the two advancing bodies 200 are moved in the direction facing each other by the advancing and driving unit 220, so that each of the cooling water distribution parts 40 Molding is possible.

The upper body 500

As shown in FIG. 6,

A casting supply part 510 arranged at an upper side of the lower body 100 to the transfer path 110, and

Cover portion 520 for covering the upper portion of the cavity 210

It is made, including.

Recess 600

As shown in " I "

In order to form the casting inlet space portion 610 on the upper side of each of the air-side core 300 is formed in the cover portion 520 of the upper body 500,

Each recess 600 has a structure in which the space area gradually expands in the direction in which the casting flows in.

The structure of the recess 600 has the following function together with the ridge 700 to be described later,

When the castings are sequentially filled from the first recess 600 adjacent to the end of the transport path 110 of the lower body 100 to the final recess 600, the castings introduced into the initial recess 600 are initially recessed. Before passing through the ridge 700 between the recess 600 and its next recess 600, it is filled in a cavity 210 located on the side of the initial recess 600, the initial recess 600 and its The gap 700 is filled between the next recesses 600 and filled in the cavity 210 located at the next recess 600 side.

As a result, the casting moves in sequence from the first to the last (last) recess 600 side until the cavity is filled in the area of the cavity 210 located in the last recess 600 side.

Therefore, the casting occupies the cavity 210 area before passing through the gap of the ridge 700 by the pressure generated when passing through the narrow gap of the ridge 700.

The first recess refers to a recess 600 adjacent to an end of the transport path 110.

The term " final recess " refers to the recess 600 that is located last starting from the first recess 600.

The ridge 700

As shown in " I "

It is formed in the cover portion 520 of the upper body 500 to be arranged on the upper side of each of the cooling water side core 400 to interconnect each recess 600, that is, the inlet space 610, It has a narrower space area than the recess 600.

The casting mold (M) having the above configuration is a structure for molding casting one unit (U), but as shown throughout the drawings, it can be implemented to be able to mold molding the two units (U) at the same time, Not limited to this, it will be possible to deform and change so that at least three units (U) can be molded and cast simultaneously.

Mold casting two units (U) The mold (M) of the variant

The transfer path 110 of the lower body 100 is made of a branched form in two,

The mounting portion 120 is formed at each end of the transfer path 110 divided into two,

The two advancing bodies 200 are arranged in the mounting portions 120,

The air side core 300 and the coolant side core 400 are arranged in the cavity 210 formed by the two recesses 200,

As described above, the upper body 500 having the cover portion 520 and the casting supply portion 510 in which the recess 600 and the ridge 700 are formed to fit the respective cores 300 and 400 are the lower body. 100 will be located above.

Therefore, the casting supplied to the supply unit 510 is moved to each end side of the branched transport path 110,

The moved casting is filled in two cavities 210, so that two units (U) can be cast at the same time.

And casting mold (M) according to the present invention

As shown in FIG. 9, there is provided an air vent means 800 for releasing air pressure in the transfer path 110 and the cavity 210 when the casting is injected.

The air vent means 800 is

A lower uneven portion 810 formed at the discharge side of the casting filled in the cavity 210, that is, at the last recess 600, in the upper body 500 and connected to the cavity 210, and

The upper concave-convex portion 820 is formed on the upper body 500 so that the lower concave-convex portion 810 and the male and female are coupled but the male and female space is provided so that the interspace portion is provided.

It is made, including.

And casting mold (M) according to the present invention

As shown in FIG. 9, a lower support body 900A on which the lower body 100 is mounted, and an upper support body 900B on which the upper body 500 is mounted may be further provided.

In addition, the lower support (900A) or the upper support (900B), or both may be provided with a lifting means (1000),

In addition, the lower support 900A may be provided with a stripper means 1100 for automatic demoulding of the molded body U formed.

On the other hand, the fin block unit manufacturing method for a heat exchanger using a casting mold having the above configuration

As shown in FIG.

Preparing the mold (M) (S10),

Injecting a casting into the cavity 210 of the mold M (S20),

Demolding the intermediate finished product U1 molded from the mold M (S30), and

Cutting and removing the molded parts filled in the recesses 600 and the ridges 700 in the demolded intermediate finished product U1, and cutting and removing the molded parts so that the respective air flow units 50 are visible ( S40)

It is made, including.

The casting injection step (S20) is a step of injecting the casting into the supply unit 510 of the upper body 500, the injected casting is the cavity 210 via the transport path 110 of the lower body 100 Is moved into.

In the demolding step (S30), the lower body 100 and the lower support body 900A are lowered by the elevating means 1000, and each forward and backward body 200 is moved forward and backward by the backward driving means 220. ) Is moved, and the strip intermediate means (1100) to separate the cavity intermediate finished (U) from the cavity (210).

10 and 10, the cutting removing step S40 cuts and removes the molded portions filled in the recesses 600 and the ridges 700, and at the same time, the transfer path. Filled and filled in the 110 and the supply unit 510 is removed to cut.

In addition, the step of grinding the cutting surface may further include.

In the above description of the present invention with reference to the accompanying drawings, a heat exchanger having a specific shape and structure described with a focus on the "block block unit and a method for manufacturing thereof" The present invention can be variously modified and changed by those skilled in the art, such Modifications and variations are to be construed as falling within the protection scope of the present invention.

U: monomer U1: intermediate finished
A: aggregate M: mold
10: body
20: first square flange
30: second square flange
40: cooling water distribution section
50: air distribution unit
51: powder distribution unit 52: partition wall
100: lower body
110: transfer path 120: mounting portion
200: progressive body
210: cavity 220: forward and backward driving means
221: rod 222: plate
223 piston 224 body
300: air side core
400: coolant side core
410, 420: powder
500: upper body
510: supply part 520: cover part
600: recess
610: inlet space
700: ridge
800: air vent means
810: lower uneven portion 820: upper uneven portion
900A: Lower support
900B: Upper support
1000: lifting means
1100: stripper means

Claims (4)

Body 10;
First and second rectangular flanges 20 and 30 arranged on upper and lower portions of the body 10, respectively;
A plurality of cooling water distribution parts 40 formed through the front and rear of the body 10; And
A plurality of air flow passages are formed so as to penetrate up and down from the first square flange 20 to the body 10 and the second square flange 30, and each of the cooling water flow portions 40 is interposed therebetween. 50;
Consists of a unit (U) comprising a,

A front end portion of the first square flange 20 protrudes more than a front end portion of the second square flange 30.
A rear end portion of the second square flange 30 protrudes more than a rear end portion of the first square flange 20.
The method of claim 1,
Two or more units (U) are interconnected in a line to form one aggregate (A),
Fin block unit for a heat exchanger, characterized in that the front and rear ends of each of the first square flange (20) or each of the second square flange (30) in the adjacent two units (U) are in contact with each other.
The cavity 210 for forming the body 10 and the first and second rectangular flanges 20 and 30 in the unit body (U) of claim 1, and arranged in the unit body (U) of the claim 1, respectively, 40) and a plurality of coolant side and air side cores 400 and 300 for forming each air flow section 50, and a plurality of lees for smooth inflow of castings, which are arranged on top of each of the coolant side cores 400. Multiple recesses arranged on top of each of the recess 600 and each air side core 300 to interconnect adjacent recesses 600 with a smaller space area than the recesses 600. Preparing a mold M including a base 700;
Injecting a casting into the cavity 210 of the mold M;
Demolding the molded intermediate finished product (U1) from the mold (M); And
Cutting and removing the molded portions filled in the recesses 600 and the ridges 700 in the demolded intermediate finished product U1, and cutting and removing the air flow units 50 so as to be visible;
Fin block unit manufacturing method for a heat exchanger comprising a.
The method of claim 3, wherein
Each recess 600 is a fin block unit manufacturing method for a heat exchanger, characterized in that the space area is gradually expanded in the direction in which the casting flows into.

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