KR101991937B1 - A foam block for an air conditioner and a method for manufacturing a heat insulating member using the foam block - Google Patents

Abstract

The present invention relates to a foam block for an air conditioner insulator, which is attached to the edge or outlet of the rear side of a cover of an indoor unit for an air conditioner to block a joint between the cover and the indoor unit or to lead a wind direction to the outlet, and a method of manufacturing an insulator by using a foam block. According to the present invention, A foam center block (10) in the center and foam insulation blocks (20)(20′) on both sides of the foam center block (10) are integrated by being foamed, the bottom of the foam center block (10) is located on the same plane as the bottom of the foam insulation blocks (20)(20′), a furring bamboo piece (110) protruding at a height extended in contrast to the foam insulation blocks (20)(20′) is formed on the upper surface of the foam center block (10), and the sum of the widths of the bottom of the foam center block (10) and the bottom of the foam insulation blocks (20)(20′) is equal to or more than 36 mm. If the foam block for an air conditioner insulator and the insulator manufacturing method using the same are used, foaming can be possible even when the width of a foam insulation block is smaller than the diameter of a fuel injection feeder of a molding machine.

Description

A foam block for an air conditioner and a method for manufacturing a heat insulating member using the foam block {a foam block for an air conditioner and a method for manufacturing a heat insulating member using the foam block}

The present invention relates to a foam block for an air conditioner insulation member and a method for manufacturing an insulation member using the foam block, which will be described in more detail, attached to the edge or outlet of the cover rear surface of the air conditioner indoor unit to block the insulation and the seam between the indoor unit and the cover. It relates to a foam block for an air conditioner insulation member used to induce the discharge direction side wind direction and a method for manufacturing the insulation member using the foam block.

In general, an air conditioner is composed of a compressor, an outdoor heat exchanger, an expansion valve, an indoor heat exchanger, and the like, and is a device for lowering a room temperature or maintaining a comfortable state by heat exchange using a refrigerant gas. In this case, since the indoor heat exchanger is formed in a structure in which air heat-exchanged by blowing is ejected through the discharge passage, mold is easily generated inside the indoor heat exchanger cover due to condensation while cold air passes through the discharge passage.

Accordingly, the indoor unit of the separate type air conditioner disclosed in Korean Patent No. 10-229645 disclosed in the prior art includes: a rear plate member on which a heat exchanger is installed; a front panel coupled to the rear plate member; A blower fan installed in the member to blow air exchanged through the heat exchanger to the discharge port, a guide vane installed in the rear plate member to form a housing part of the blower fan and guide the blown air to the outlet port, and the guide vane. And a heat insulating plate member coupled by the coupling means. An air layer is formed between the guide vane and the insulating plate member, and the coupling means includes a plurality of coupling holes formed in the housing of the guide vane and a plurality of hook-type fixing members formed at positions corresponding to the coupling holes of the insulating plate member. Although the configuration has been pre-registered, the structure is complicated by the insulation to form an air layer by the insulation plate member on the back of the housing portion, and the insulation is not safe from condensation due to insufficient insulation at the end of the discharge port having the greatest temperature difference in the indoor unit. There was a problem.

In another conventional air conditioner of Korean Patent Laid-Open Publication No. 10-2010-76253, at least one air outlet is formed, and the case is rotatably installed on the case so as to open and close the air outlet, so that an outer surface forms an appearance of the case. It has a predetermined curvature, but the inner surface includes a vane having a planar shape to guide the flow of air discharged from the air discharge port, and the technology that the plate-shaped insulating member is coupled to the inner surface of the vane However, the insulation member coupled to the vane is exposed to the outside is dirty in appearance, due to the structural problem that requires a large power to operate the vane opening and closing due to the weight of the insulation member.

On the other hand, in recent years, foam polypropylene having excellent strength, durability, and heat insulation property is widely used instead of styrofoam as a heat insulating member. When the size is smaller than 36mm, the space between the tubular feeder and the feeder pin is narrow, so that the raw material supply is not smooth.) Therefore, the size of the foamed molding, that is, the inner wall surface of any one side of the cavity space of the mold apparatus must be larger than 36mm. none.

Therefore, there is a problem that the insulation member having a smaller width and longer length than the minimum diameter of the feeder, such as the insulation members used in the indoor unit of the air conditioner, cannot be manufactured using the expanded polypropylene.

KR 10-0229645 B1 (1999.08.17) KR 10-2010-76253 A (2010.07.06)

In the present invention, to solve the problems of the prior art as a new technology,

The problem to be solved by the present invention is to provide a foam block for air-conditioning insulation member and a method for manufacturing a thermal insulation member using the foam block that can be molded even the foam insulation block smaller than or equal to the diameter of the feed hole of the feeder.

In addition, since the foam hub block is used as a pair of foam insulation blocks and an integral structure to improve durability and is used as a mil-pin contact surface, even if the foam insulation block is designed in a compact structure, deformation and damage due to mil-pin load during mold ejection are prevented. An object of the present invention is to provide a heat insulating member for an indoor air conditioner.

In the present invention as a specific means for solving the above problems of the present invention constitute a foam block for the air conditioner insulation member for an indoor unit,

Foam foam blocks 10 and foam insulation blocks 20, 20 'are foamed integrally on both sides of foam foam block 10, and foam foam blocks 10 and foam insulation blocks 20 ( 20 '), the foam core block 10 is removed, and then two independent foam insulation blocks 20 and 20' are formed, and the foam insulation blocks 20 and 20 'discharge the air conditioner indoor unit. It is characterized in that the flow path is installed on the inner wall to form a heat insulation layer.

At this time, the foam insulating block 20, 20 'is provided with a longitudinal, horizontal mounting surface 24, 26 to be fixed in two sides contact with the inner wall (A1) of the indoor unit (A) discharge flow path, the vertical mounting surface (24) ) Is composed of a cutting surface from which the foam hub block 10 is removed, and the horizontal mounting surface 26 is characterized by consisting of a bottom surface orthogonal to the cutting surface.

In the method for manufacturing a heat insulating member for an indoor unit of an air conditioner according to the present invention, when the mold apparatus 1 is in a molded state, a bead feeding step in which the injection port 5a of the raw material injection feeder 5 is opened to supply beads into the cavity is provided. (S1); Injecting steam into the foaming mold apparatus 1 and foaming beads to foam the foam central block 10 at the center, and the foam insulating blocks 20 and 20 'integrally formed at both sides of the foam central block 10. Foam forming step (S2) to form a block 100; A blow-out step (S3) in which the foam block 100 is blown out at the same time as the foam molding die apparatus 1 is opened and opened; It is characterized in that it comprises a; cutting step (S4) for obtaining two independent foam insulation block 20, 20 'by cutting and removing the foam hub block 10 located in the center of the semi-finished molding (100) .

In addition, the mil pin protruding in the take-out step (S3) so that the foam block 100 is molded by direct impact on the bottom surface of the central block 10 so that the damage of the insulating blocks 20, 20 'by the impact does not occur. Characterized in that it is to be taken out from.

According to a specific means for solving the above problems, the present invention is to form two independent foam insulation blocks in a manner of cutting and removing the foam hub block after foam molding the foam hub block and a pair of foam insulation blocks integrally. Therefore, the foam insulation block can be foamed to a size smaller than the diameter of the raw material feeder of the mold apparatus, and in particular, the foam hub block is used in a unitary structure with a pair of foam insulation blocks to improve durability and to provide contact with the pin contact surface. Therefore, even if the foam insulation block is designed to have a compact structure, the expected effect is great, such that deformation and damage due to the mill pin load are prevented when the mold is taken out.

1 is a schematic view showing a process of forming a heat insulating member for an indoor air conditioner according to an embodiment of the present invention.
Figure 2 is a schematic diagram showing a process of integrally forming the foam foam block and the foam insulation block of the insulation member for air conditioner indoor unit.
Figure 3 is a state diagram schematically showing a process of forming a foam core block and foam insulation block by cutting the semi-finished product of the insulation member for the indoor unit of the air conditioner.
Figure 4 is an installation state sectional view showing a state in which the foam insulation block used as the insulation member for the air conditioner indoor unit of the present invention installed on the inner wall of the air conditioner indoor unit.
Figure 5 is a block diagram schematically showing a method of manufacturing a heat insulating member for an indoor air conditioner according to an embodiment of the present invention.
Figure 6 is a photograph of a foam block for a heat insulating member provided by the present invention.

Hereinafter, with reference to the accompanying drawings will be described a specific content for the practice of the present invention. In the following description of the present invention, when it is determined that the subject matter of the present invention may be unnecessarily obscured by those skilled in the art with respect to related known functions, the detailed description thereof will be omitted.

The present invention relates to a foam block for an air conditioner insulation member and a method for manufacturing an insulation member using the foam block, wherein the insulation member for an air conditioner indoor unit is foamed after integrally foaming the foam central block and a pair of foam insulation blocks. By forming two independent foam insulation blocks in a manner of cutting off the central block, the foam insulation block is characterized in that the foam molding is possible in a compact size of a size smaller than the diameter of the raw material injection feeder of the foam molding apparatus.

1 is a configuration diagram schematically showing the process of forming a heat insulating member for an indoor air conditioner according to an embodiment of the present invention, the heat insulating member for an air conditioner indoor unit according to the present invention, the foam central block 10 and the foam central block ( 10) If the foam block 100 is formed integrally with the foam insulation block 20, 20 'on both sides, and then cut between the foam hub block 10 and the foam insulation block 20, 20' The two independent foam insulation blocks 20, 20 'obtained are used as heat insulation members for air conditioner indoor units.

The foam block 100 is foam-molded using polypropylene beads for foam having much higher strength and durability than styrofoam.

At this time, the bottom of the foam core block 10 and the bottom of the foam insulating block 20, 20 'is integrally molded to match the plane, the bottom width of the foam central block 10 and the foam insulating block 20, 20 (20) ') The sum of the widths of the bottom surfaces is provided to be equal to or larger than the diameter of the feeder 5 of the foam molding die 1.

As an example, when the diameter of the feeder 5 of the foaming molding apparatus 1 is 36 mm, and the foam insulation blocks 20 and 20 'are to be formed to have a width of 15 mm, the width L of the foam central block 10 is L. ) Is designed to be 6mm or more, and the inner wall width of one side of the cavity space for integrally forming the foam pivot block 10 and the foam insulation block 20, 20 'is formed to be equal to or larger than 36 mm, and the foam having a diameter of 36 mm The feeder 5 of the molding die apparatus 1 is applicable.

In this way, the width of the required heat insulating member can be easily foam-molded to a compact size smaller than the diameter of the injection port 5a of the minimum raw material injection feeder 5 of the mold apparatus 1.

FIG. 2 is a configuration diagram schematically illustrating a process of integrally foaming the foam discard block and the foam insulation block of the insulation member for an indoor unit of an air conditioner. The feeder 5 of the foam molding apparatus 1 includes a tubular feeder body through which raw materials are conveyed. And a feeder cap 5b for opening and closing the tubular feeder inlet, and a feeder pin installed inside the tubular feeder to control the opening and closing operation of the feeder cap.

The feeder 5 is a device for supplying the raw material into the cavity of the mold, the injection of the raw material as shown, the feeder cap is pushed into the feeder body by the feeder pin while the mold apparatus 1 is closed with each other. When a bead (foam), which is a foaming material, is supplied into the cavity of the mold through a gap generated between the feeder cap and the inner diameter of the feeder body.

Due to this structural feature, most feeders are considered in that the supply of beads, which are foaming raw materials, is not smooth when a minimum diameter of the inlet hole 5a of the feeder 5 applied to the foam mold apparatus is formed to a size smaller than 36 mm. (5) Since the minimum diameter is standardized to 36 mm, the minimum molding width of the semi-finished molding 100 is limited to 36 mm or more.

Therefore, the present application foam molding the foam insulation block 20, 20 'having a narrow width compared to the minimum diameter of the feeder (5) that is commonly used integrally with the foam hub block 10, and then the foam hub block 10 By removing two foam insulation blocks 20, 20 'at the same time in a single cavity, the production yield is improved, and the foam insulation blocks 20, 20' having a smaller width than the diameter of the feeder 5 are formed. There is an advantage that the foam molding is made simple.

In addition, the foam insulation blocks 20 and 20 'are provided with vertical and horizontal mounting surfaces 24 and 26 so as to be fixed in two sides contact with the inner wall A1 of the indoor unit A discharge passage. ) Is composed of the cutting surface from which the foam hub block 10 is removed, and the horizontal mounting surface 26 is composed of the bottom surface orthogonal to the cutting surface. That is, after integrally foam molding the foam center block 10 and the foam insulation blocks 20 and 20 'as shown in FIG. 1 (a), the foam center block 10 and the foam insulation block as shown in FIG. Since it cuts between 20 and 20 ', the longitudinal and horizontal mounting surfaces 24 and 26 which are mutually orthogonal to each other on the foam insulation block 20 and 20' are simply formed, and the position to which a heat insulating material is applied According to the present invention, the arcuate curvature 22 may be formed on the other side to add functionality.

For example, as shown in a cross-sectional view showing a state in which the foam insulation block used as the insulation member for the air conditioner indoor unit of FIG. 4 is installed on the inner wall of the air conditioner indoor unit, the indoor unit A is discharged by the vertical and horizontal mounting surfaces 24 and 26. Two-sided contact with the inner wall of the flow path (A1) to maintain the fixing force while preventing the condensation phenomenon on the inner wall (A1) and the wing by the self-insulation, and by forming a curvature portion 22 on the front surface mutual interference during the rotation operation of the wing You can prevent it.

In the drawings of the present invention shows an example of the heat insulator applied to the discharge portion of the air conditioner, in the heat insulator applied to other positions can be formed foam insulation block without the curvature.

5 is a block diagram schematically illustrating a method of manufacturing a heat insulating member for an indoor unit of an air conditioner according to an embodiment of the present invention.

According to the present invention, a method for manufacturing a heat insulating member for an indoor air conditioner is performed by integrally foam molding a foam center block and a pair of foam insulation blocks, and then cuts and removes the foam center blocks so that two independent foam insulation blocks are provided. In order to be made including the bead injection step (S1), foam molding step (S2), take-out step (S3), cutting step (S4).

1. Bead injection step (S1)

Referring to FIG. 2 (a), when the mold apparatus 1 is in a mating state, that is, when the sealed cavity is prepared, the feeder cap 5b sealing the injection port 5a of the feeder 5 for raw material injection is prepared. This cylinder actuates the feeder body. At this time, the bead, the foaming raw material, is supplied into the cavity of the mold through a gap generated between the feeder cap and the inner diameter of the feeder body.

2. Foam molding step (S2)

In the foam molding step (S2) according to the present invention, as shown in FIG. 2 (b), steam is injected into the foam molding die 1 to foam the raw material. At this time, the foam central block 10 at the center and the foam insulating blocks 20 and 20 'are foamed integrally at both sides of the foam central block 10 to form the foam block 100 which is a semi-finished molded product as shown in FIG. Molding.

In the foam molding step (S2), the bottom of the foam central block 10 and the bottom of the foam insulating block 20, 20 'is integrally molded to match the plane, the bottom of the foam central block 10 as shown in FIG. The combined value of the bottom surface of the foam insulation blocks 20 and 20 'is configured to be equal to or larger than the diameter of the feeder 5 of the foaming mold apparatus 1.

At this time, in the forming step (S2), the bottom surface of the foam core block 10 is located on the same plane as the bottom surface of the foam insulation blocks 20, 20 ', the foam center block 10, the top surface of the foam insulation block 20 It is formed to protrude to an extended height (20 ') so that the force piece 110 of the' ㅗ 'type structure is provided.

Referring to Figure 1 (a), a pair of foam insulation blocks 20, 20 'is formed to be symmetrical around the foam hub block 10, but integrally foam molded foam block, that is, semi-finished molding (100) Force force piece 110 is formed to protrude in the longitudinal direction on the top).

3. Extraction step (S3)

As shown in FIG. 2 (c), the foam molding die apparatus 1 is opened and the semi-finished molded product 100 is taken out by the pin.

When manufacturing the foaming mold apparatus 1, the mill pin is disposed at a position corresponding to the foam core block 10 so that the mill pin is in direct contact with the bottom surface of the central block 10 when the pin is protruded in the mold ejection step.

When the milpin take-off load is applied to the foam pivot block 10 side, the foam block 100 in which the foam pivot block 10 and the insulation blocks 20 and 20 'are integrally formed is molded in such a manner as to be taken out of the mold. Therefore, even if the foam insulation blocks 20, 20 'thickness is designed to be thin, since the pinch take-out shock is transmitted to the central block 10, the deformation and damage of the insulation blocks 20 and 20' are prevented, thereby significantly reducing the defective rate of the product. There is an advantage that can be lowered.

4. Cutting step (S4)

Cutting step (S4) according to the present invention, by cutting the foam intermediate weight block 10 and the foam insulation block 20, 20 '20 stepped line 112 of the semi-finished molded product 100, foam intermediate weight block 10 After the removal, two independent foam insulation blocks 20 and 20 'are formed.

In the cutting step (S4), the semi-finished product 100 is linearly transported on the guide rail (2a) of the cutter 2, a pair of cutting blades (2b) are spaced apart on the guide rail (2a), A pair of stepped lines 112 are simultaneously cut between the foam hub block 10 and the foam insulating blocks 20 and 20 'by the cutting blade 2b.

To this end, in the forming step (S2), the stepped line 112 is formed at a position where the foam insulation block 20, 20 'and the foam central block 10 is in contact with the force piece 110, the stepped line ( 112 is provided to be used as a reference line to guide the cutting position in the cutting step (S4). As shown in FIG. 1 (a), the stepped line 112 is formed in a 'b' shape, and is provided to guide the movement path of the cutting blade 2b in the cutting step S4 described later as shown in FIG. There is an advantage that is precisely cut by hand.

In FIG. 3, the guide rails 2a of the cutting machine 2 are provided in a pair of parallel and spaced adjustable to guide both sides of the semi-finished molding 100, and are provided on the guide rails 2a to the driving source. A pair of cutting edges 2b are spaced apart from each other on the horizontal axis rotated, and the cutting edges 2b are set in consideration of the cutting removal width of the foam hub block 10.

When the semi-finished molded product 100 is put onto the guide rails 2a of the cutting machine 2, a pair of cutting blades 2b are formed at the top of the foam insulation block 20, 20 ′ and the foam hub block 1. When the semi-finished molding 100 is cut and removed along the stepped line 112 at a position where a) is in contact with each other, two independent foam insulation blocks 20 and 20 'are manufactured. At this time, the semi-finished product 100 moves on both side step lines 112 of the force pieces 110 to the cutting blade 2b while being transported on the guide rail 2a of the cutting machine 2, thereby bending to one side in the cutting process. It is effective to minimize the mass production of defective products by cutting or pulling.

As described above, the detailed description of the present invention has been described with respect to the most preferred embodiment of the present invention, but various modifications may be made without departing from the technical scope of the present invention. Therefore, the scope of protection of the present invention should not be limited to the above embodiments, but the scope of protection from the technologies described in the claims and the equivalent technical means will be recognized.

1: foam molding mold apparatus
2: cutter 2a: guide rail 2b: cutting blade
5: feeder 5a: inlet 5b: feeder cap
6: Bead, Raw Material
10: foam foam block
20, 20 ': foam insulation block 22: curvature
24: vertical mounting surface 26: horizontal mounting surface
100: semi-finished molding, foam block 110: strength fragment
112: step line A: indoor unit
A1: inner wall L: separation distance

Claims (5)

Foam foam block 10 in the center, and foam insulation block 20, 20 'is foamed integrally on both sides of the foam block 10,
The bottom surface of the foam hub block 10 is coplanar with the bottom surface of the foam insulation blocks 20 and 20 ',
On the upper surface of the foam hub block 10 is formed a force strip 110 is formed to protrude to an expanded height compared to the foam insulating block 20, 20 ',
The sum of the widths of the bottom surface of the foam core block 10 and the bottom surface of the foam insulation block 20, 20 ′ is equal to or larger than 36 mm, which is the inlet diameter of the minimum raw material injection feeder 5 of the foam molding apparatus 1. ,
The stepped line 112 is formed at a position where the foam insulation block 20, 20 ′ and the foam hub block 10 are in contact by the force strip 110.
The stepped line 112 is cut by using the cutting machine 2, and two independent foam insulation blocks 20 and 20 ′ obtained after removing the foam hub block 10 are used as the insulation member for an indoor air conditioner. ,
The foam insulation blocks 20 and 20 'are provided with vertical and horizontal mounting surfaces 24 and 26 so as to be fixed in two-side contact with the inner wall A1 of the indoor unit A discharge flow path, and the vertical mounting surface 24 is Foam foam block 10 is composed of the cut surface is removed, the horizontal mounting surface 26 is a foam block for air conditioning insulation member, characterized in that consisting of a bottom surface perpendicular to the cutting surface.
delete A bead injecting step (S1) in which the inlet (5a) of the raw material injecting feeder (5) is opened and the beads are supplied into the cavity when the mold apparatus (1) is in a mated state;
Injecting steam into the foaming mold apparatus 1 and foaming beads to foam the foam central block 10 at the center, and the foam insulating blocks 20 and 20 'integrally formed at both sides of the foam central block 10. Foam forming step (S2) to form a block 100;
A blowing step (S3) in which the foam block 100 is taken out at the same time as the foam molding die apparatus 1 is opened and opened by a mill pin;
And a cutting step (S4) of cutting and removing the foam central block 10 located at the center of the foam block 100 to obtain two independent foam insulating blocks 20 and 20 '.
The mil pin protruding in the take-out step (S3) is directly impacted on the bottom of the central block 10 so that the damage of the insulating blocks 20, 20 ′ is not caused by the impact, and thus the foam block 100 is taken out from the mold. Method for producing a heat insulating member using a foam block, characterized in that to make.
The method of claim 3,
In the foam molding step (S2), the foam core block 10, the upper surface is protruded in an expanded size compared to the foam insulation block 20, 20 'to constitute a force strip 110 of the' ㅗ 'type structure,
The stepped line 112, which is a reference line for guiding a cutting position, is formed at a position where the foam insulation block 20, 20 'and the foam central block 1 are in contact by the force strip 110,
In the cutting step S4, the stepped line 112 is used as a reference line to guide the cutting position.
The foam block 100, which is a semi-molded product, is linearly transported on the guide rail 2a of the cutter 2, and a pair of cutting edges 2b are spaced apart by the width of the foam hub block 10 on the guide rail 2a. Will be placed,
A pair of stepped lines 112 are simultaneously cut between the foam hub block 10 and the foam insulation blocks 20 and 20 'by a cutting blade 2b. Manufacturing method.
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