KR102489026B1 - High density soundproof insulation door - Google Patents

Abstract

A high-density soundproof and insulated door according to the present invention includes a frame unit installed in an opening, a fixed connection unit coupled to the frame unit and moved toward the opening, and a sealing unit coupled to the fixed connection unit and moved to seal the opening. The sealing unit is provided inside the sound insulating part together with a sound absorbing part for sucking sound, a sound insulating part provided to cover at least a part of the sound absorbing part, and the sound absorbing part, wherein the sound absorbing part is the sound insulating part It may include a close contact part disposed adjacent to the sound-absorbing part so as to correspond to the height or width of the.

Description

High Density Soundproof Insulation Door{HIGH DENSITY SOUNDPROOF INSULATION DOOR}

The present invention relates to a soundproof door, and more particularly, to a high-density soundproofing and insulating door capable of primarily sound-absorbing and secondarily sound-absorbing by using a high-density panel and a sound-absorbing insulating material.

Among our housing types, multi-unit dwellings exist in various forms such as apartments, townhouses, and dormitories, and consideration for neighbors along with provision of individual rest is considered an essential element of communal life.

Along with the development of various housing types (apartment houses and detached houses), a variety of home appliances according to the lifestyle of modern people bring convenience to life that is not an option but an essential accompaniment, but on the other hand, energy consumption and noise problems The development of building materials that help improve the quality of life by minimizing it is necessary.

With the generalization of single and two-person households, various home appliances such as air conditioners, washing machines, and dryers are essential installed in our homes in a narrow residential environment. .

In addition, as the period of use of air conditioners increases due to climate change and tropical nights become more frequent, outdoor unit noise becomes an inconvenience to the residential environment, which seriously impairs the quality of sleep of modern people and causes nighttime problems caused by single and double households. The living noise generating environment is trending higher.

Home appliances such as washing machines and dryers and large boilers generate noise because they are operated by motors, so it is common sense to place them as far away as possible from the living room, kitchen, or living space where you sleep.

However, since the family structure in Korea has long been nuclear, and even single-person households are now appearing, the frequency of noise in small residential spaces is bound to increase. It has been going on for a long time already.

For this reason, in the construction market of apartment houses, the requirements for door facilities including multi-purpose rooms are focused on functionality such as insulation, airtight performance, and deformation prevention.

In the case of conventional multi-purpose doors used in boiler rooms, laundry rooms, verandas, etc., it is common to be composed of a turning door in which glass is combined with a PVC chassis that has high insulation and airtight performance and is not deformed by moisture.

In general, most of the door panels used as doors with soundproofing function are composed of insulating glass. Recently, products using insulating panels instead of glass have appeared on the market to enhance energy performance, but they have problems with poor soundproofing (sound insulation). there is.\

The WHO (World Health Organization) recommends that indoor noise at night should not exceed 30 dB, and warns that if it exceeds 55 dB, it may disturb sleep and increase the risk of heart disease. The maximum noise level is up to 70 dB.

Therefore, for a comfortable indoor space, the application of a door that requires a sound insulation (sound insulation) performance of Rw (weighted noise reduction index in dB) -35 dB or more can be said to be an essential residential environment factor.

In the case of a turning door in which glass is combined with a conventional PVC chassis used as a multi-purpose door, the strength is excellent and resistant to deformation due to moisture due to the PVC chassis and insulating glass, but there is an advantage that it is installed in the same space The design mismatch is unavoidable due to the difference in shape from the indoor door, and the manufacturing cost is high, so it is difficult to replace in case of breakdown or damage.

In order to solve the above problems, various methods of applying indoor doors to multi-purpose doors have been studied, but in the case of conventional indoor doors, it is impossible to implement strength capable of mounting hardware for multi-locking applied to multi-purpose doors. there has been

In addition, due to the nature of multi-purpose doors, insulation and airtightness must be high, but conventional indoor doors do not satisfy this, and most of them use processed wood such as medium density fiberboard (MDF), so they are vulnerable to distortion due to moisture. Problems remain as challenges.

On the other hand, among the elements of the door, not only sound insulation (sound insulation) but also issues regarding heat insulation are increasing. In the case of the windows and doors, an increase in energy consumption inevitably occurs due to an increase in the case of facing outdoor air, and the condensation problem caused by the temperature difference between inside and outside in winter acts as a major issue. It is necessary to develop a new door to solve this problem. .

The present invention is to solve the above problems, and it is an object to provide a high-density heat insulation soundproof door with improved sound insulation performance and heat insulation performance.

Specifically, in the case of a door installed indoors, it not only provides a door with excellent performance according to the relationship between the excellence of soundproofing and heat insulation and energy consumption, but also maintains aesthetics because the thickness does not increase, and provides insulation and insulation through material and density control. It is to provide a soundproof insulation door with excellent airtight performance and sound insulation and sound absorption functions.

The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the description below.

According to one aspect of the present invention in order to solve the above problems, a frame unit installed in an opening, a fixed connection unit coupled to be supported by the frame unit and moved toward the opening, and coupled to the fixed connection unit to form the opening It includes a sealing unit that is moved to seal, and the sealing unit is provided inside the sound insulating part together with a sound absorbing part that absorbs sound, a sound insulating part provided to cover at least a part of the sound absorbing part, and the sound absorbing part, and the sound absorbing part. A close-contact part disposed adjacent to the sound-absorbing part may be included so that the part corresponds to the height or width of the sound-insulating part.

In the airtight unit, the sound absorbing part having elasticity is disposed between a pair of sound insulating parts having the same size, and the sound insulating part may form a predetermined thickness by compressing the sound absorbing part.

In addition, the thickness of the sound absorbing part may be greater than the distance between the pair of sound insulating parts.

And if the sound-absorbing part has a lattice structure, it may include a density maintaining network provided to surround the circumference of the sound-absorbing part.

In addition, in the sealing unit, at least one sound absorbing part is disposed to correspond to a height of the sound insulating part corresponding to a height of the opening, and the close contact parts may be disposed at both ends of the sound absorbing part.

In addition, the close contact part may include a plurality of sound absorbing parts disposed between the sound absorbing parts.

In addition, the thickness of the close contact part and the thickness of the sound absorbing part may be 35 mm to 45 mm, and the thickness of the sound insulating part may be 3.0 mm to 4.5 mm.

The thickness of the close part may be 42 mm to 47 mm, the thickness of the sound insulating part may be 3.6 mm, and the thickness of the sound absorbing part may be 35 mm to 40 mm.

In addition, the sound insulation part may be a single sound insulation material composed of a specific gravity of PVC: 35%, Caco ³ : 62%, and additive: 3%.

And the sound insulation part may be a single high-density sound absorbing plate having a density of 2.15 kgs/m ³ .

Also, the fixed connection unit may be provided to slide on the frame unit.

The fixed connection unit may be rotatably provided in the frame unit.

According to the high-density soundproofing and insulating door of the present invention, there is an advantage in implementing sound insulation and sound absorption at the same time by using a high-density panel and a sound-absorbing insulation material.

In addition, in order to maintain high density, there is an advantage in that close contact parts, support and fixing parts, etc. are provided to firmly maintain the shape.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

The above summary, as well as the detailed description of the preferred embodiments of the present application set forth below, will be better understood when read in conjunction with the accompanying drawings. Preferred embodiments are shown in the drawings for the purpose of illustrating the present invention. However, it should be understood that this application is not limited to the precise arrangements and instrumentalities shown.
1 is a view showing a space equipped with a high-density soundproofing and insulating door according to an embodiment of the present invention;
Figure 2 is AA 'cross-sectional view of the high-density soundproof insulation door according to an embodiment of the present invention;
3 is a view showing a sound insulating part, a sound absorbing part, and a close contact part in a high-density soundproofing and insulating door according to an embodiment of the present invention;
4 is a view showing a support and fixing part in a high-density soundproofing and insulating door according to a second embodiment of the present invention;
5 is a view showing a state in which a plurality of support fixing parts and position fixing parts are provided in a high-density soundproof insulation door according to a second embodiment of the present invention to fix the sound-absorbing part to the inside of the door;
6 is a view showing a state in which the position fixing part fixes the position of the sound absorbing part in the high-density soundproof insulation door according to the second embodiment of the present invention;
7 is a conceptual diagram illustrating that noise generated in a noise generating space in a high-density soundproofing and insulating door according to an embodiment of the present invention is reduced while passing through the high-density soundproofing and insulating door;
Figure 8 (a) is a high-density soundproofing insulation door according to an embodiment of the present invention is provided in a casement form Figure 8 (b) is a high-density soundproofing insulation door according to an embodiment of the present invention provided in a sliding form It is a drawing showing the

Hereinafter, a preferred embodiment of the present invention in which the object of the present invention can be realized in detail will be described with reference to the accompanying drawings. In describing the present embodiment, the same name and the same reference numeral are used for the same configuration, and additional description thereof will be omitted.

1 is a view showing a space equipped with a high-density soundproofing and insulating door according to an embodiment of the present invention, FIG. 2 is a cross-sectional view A-A' of a high-density soundproofing and insulating door according to an embodiment of the present invention, and FIG. It is a view showing the sound insulation part 100, the sound absorbing part 200, and the close contact part 300 in the high-density soundproof insulation door according to an embodiment of the present invention, and FIG. 4 is a high-density soundproof insulation according to the second embodiment of the present invention 5 is a view showing the support and fixing part 400 in the door, and FIG. 5 is a high-density soundproof and insulating door according to a second embodiment of the present invention, in which a plurality of support and fixing parts are provided to fix the sound-absorbing part to the inside of the door Figure 6 is a view showing the position fixing part fixing the position of the sound-absorbing part in the high-density soundproof insulation door according to the second embodiment of the present invention, Figure 7 is a view showing the position of the sound-absorbing part in one embodiment of the present invention It is a conceptual diagram expressing that the noise generated in the noise generating space is reduced while passing through the high-density soundproofing and insulating door in the high-density soundproofing and insulating door according to the present invention, Figure 8 (a) is a high-density soundproofing and insulating door according to an embodiment of the present invention Figure 8 (b) is a view showing the state provided in the form of a high-density soundproof insulation door according to an embodiment of the present invention provided in the form of a sliding door.

As shown in FIG. 1, the present invention relates to a door provided to be able to open and close a noise generating space 14. Looking at the configuration, the frame unit 12, the fixed connection unit 13, and the frame unit 12, It includes a fixed connection unit 13 and a sealing unit 11.

As shown, the present invention relates to a door that opens and closes a noise generating space (14) where noise is generated in a home, such as a washing machine (19) or a boiler (18). It aims to reduce transmission to the space 15.

Here, the living space 15 refers to an apartment, villa, or a space where residents live, and the noise generating space 14 may be a multipurpose room equipped with a washing machine 19 and a boiler 18.

And the sealing unit 11 may be the same article as the door of the present invention.

As shown, a place where a resident stays for a long time in a living space 15 is a place where furniture such as a sofa 17 is placed, and if there is a noise generating space 14 adjacent to such a living space 15, the residents are harmed. The stress caused by the falling noise has no choice but to act greatly.

In the present invention devised due to this problem, the frame unit 12 provided in the opening 16 of the noise generating space 14 forms a rim on the opening 16 according to FIG. 2, and the fixed connection unit 13 is coupled to the frame unit 12 to rotate or slide, and the sealing unit 11 may be coupled thereto.

As shown, the frame unit 12 and the fixed connection unit 13 are hinged, and the fixed connection unit 13 may hold a part of the sealing unit 11.

This is only one embodiment, and the fixed connection unit 13 may be provided to enable sliding or opening in the form of gripping the sealing unit 11, and details will be described later.

Subsequently, the sealing unit 11 closes the opening 16 to isolate and absorb noise generated in the noise generating space 14, and at least the sound absorbing part 200 and the sound absorbing part 200 for absorbing sound The sound absorbing part 200 is provided inside the sound insulating part 100 together with the sound insulating part 100 and the sound absorbing part 200 provided to cover a part thereof, and the sound absorbing part 200 corresponds to the height or width of the sound insulating part 100. ) May include a close contact part 300 disposed adjacent to.

Specifically, in the sealing unit 11, a sound absorbing part 200 having elasticity is disposed between a pair of sound insulating parts 100 of the same size, and the sound insulating part 100 compresses the sound absorbing part 200 to have a predetermined thickness It is provided to form.

The sound insulation part 100 may be formed in a rectangular shape with a height longer than the width, and the sound absorbing part 200 has the same size as the sound insulation part 100 in width or height, and the sound insulation part 100 Correspondingly, it may be provided in plurality.

In addition, the close contact part 300 is disposed in an extra position while the sound absorbing part 200 is disposed between the pair of sound insulating parts 100, and when the close contact part 300 is disposed, the sound absorbing part 200 is elastically deformed You can press while doing it.

The sound insulation part 100 according to an embodiment of the present invention may be provided with a PVC board, and the PVC board may be provided with PVC: 35%, Caco ³ : 62%, and additive: 3%, and has a thickness of 3.0 mm. to 4.5 mm.

This sound insulation part 100 is a panel (PANNEL) that is not deformed rather than a commonly used PVC sheet, and is compressed with a high density with the above physical properties, and the sound insulation effect may be higher than that of the existing PVC board.

And the sound-absorbing part may be provided with glass wool (GLASS WOOL).

The sound absorbing part 200 is a material having elasticity, which does not cause corrosion of stainless steel, and may be a material that satisfies the corrosion resistance standards set forth by the American Society for Testing and Materials (ASTM) and the United States Atomic Energy Commission (USAEG).

The application of glass wool to the sound-absorbing part 200 of the present invention is to increase the heat insulation performance of the door.

Glass wool is a glass fiber such as silica sand, which has excellent fire resistance and is produced and used in various forms according to construction purposes.

In addition, it is delicately collected with a uniform fiber diameter, and its thermal conductivity is low, so it has excellent insulation and heat preservation effects, so that energy loss can be minimized.

In the sealing unit 11, the sound absorbing part 200 may be provided with a thickness of 35 mm to 45 mm, and when fixed between a pair of sound insulating parts 100, the thickness of the sound absorbing part 200 may be reduced by a predetermined amount.

This may be to achieve an effect of increasing the density by compressing the sound-absorbing part 200 in the thickness direction of the sound-absorbing part 200 as the sound-absorbing part 200 is an elastic material.

Therefore, the total thickness of the sealing unit 11 including the sound insulation part 100 and the sound absorption part 200 may be formed within 38 mm to 49.5 mm.

In this embodiment, the sound-absorbing part 100 may be provided with a thickness of 4 mm, the sound-absorbing part 200 with a thickness of 40 mm, and a total thickness of 48 mm.

On the other hand, the close contact part 300 is provided with the sound absorbing part 200 between the pair of sound insulating parts 100, the sound absorbing part 200 may be maintained at a uniform width or height, and the sound absorbing part 200 By pressing in the width or height direction of the sound absorbing part 200 to increase the sound absorption performance.

Referring to FIG. 3 as an example, a plurality of sound-absorbing parts 200 having the same width as the sound-absorbing parts 100 are disposed in a plurality in the vertical direction in a pair of rectangular sound-insulating parts 100 formed long in height. Assuming that, while the close contact part 300 is disposed between the plurality of sound-absorbing parts 200, the density of the sound-absorbing part 200 may be increased by pressing the sound-absorbing part 200 inward in the width direction.

As shown, the two sound-absorbing parts 200 are vertically disposed between the sound-absorbing parts 100, the upper and lower ends of the two sound-absorbing parts 200, and the close contact part 300 between the sound-absorbing parts 200 can be placed.

Through this, the sound absorbing part 200 is pressurized and the thickness increases, but the density may increase as a whole while being pressed in the thickness direction by the sound insulating part 100.

4 to 6, a support fixing part 400 and a position fixing part 600 for fixing a plurality of sound absorbing parts 200 are provided.

The support fixing part 400 is formed long and has a “T” shape when viewed from both sides, and the first support part 410 formed with “T” shaped protrusions when viewed from both sides, and has a “T” shape when viewed from both sides to accommodate the protrusions Including the second support part 420 provided, it is provided to be coupled to each other.

Therefore, the support fixing part 400 has a length corresponding to the longitudinal direction (vertical direction) or the width direction (left and right direction) of the sealing unit 11, and the sound absorbing part 200 provided inside the sealing unit 11 has the length The position can be fixed in the direction or the width direction.

This is a state in which the first support part 410 and the second support part 420 are coupled, the first support part 410 and the second support part 420 in a state where both sides are adhered to the inner surface of the sound insulation part 100 This may be because the sound absorbing part 200 is placed in between and coupled through. The support fixing part 400 compresses each end of the two sound-absorbing parts 200 in the thickness direction, and may guide the position where the sound-absorbing part 200 is disposed between the sound insulating parts 100.

For example, assuming that a pair of sound insulation parts 100 are a first sound insulation part (not shown) and a second sound insulation part (not shown), the first sound insulation part 410 may be attached or attached to the first sound insulation part. The first support part 410 and the second support part 420 are fixed and the second support part 420 is adhered or fixed to the second sound insulation part and the gap between the first sound insulation part and the second sound insulation part is narrowed. ) is combined with a predetermined amount, and the sound absorbing parts 200 are placed on both sides of the first supporting part 410 and the second supporting part 420, and then between the first sound insulating part and the second sound insulating part By narrowing further, the first support part 410 and the second support part 420 are coupled so that the position of the sound absorbing part 200 can be precisely positioned.

The support fixing part 400 penetrates the sound absorbing part 200 in a state in which the first supporting part 410 and the second supporting part 420 are bonded to the sound insulating part 100 (BONDING), and the sound absorbing part 200 The position of the fixed, or may be disposed between a plurality of sound-absorbing parts (200).

Therefore, a plurality of support fixing parts 400 can be fixed inside the sealing unit 11, and the sound absorbing part 200 can be pressed and positioned precisely.

This is because the position of the door in which the sound-absorbing part 200 having a small circumference is disposed inside the sound-insulating part 100 is not precisely fixed after a long time.

Meanwhile, a plurality of position fixing parts 600 may be disposed along the longitudinal direction (vertical direction) or the width direction (left-right direction) of the sealing unit 11 to fix the position of the sound-absorbing part 200 .

The position fixing part 600 is provided with a first fixing part and a second fixing part and is formed to be coupled to each other, and a rib formed on at least one of the first fixing part and the second fixing part, and the rib is inserted A hole may be formed so that the first fixing part and the second fixing part can be coupled to each other.

Therefore, the position fixing part 600 can fix the sound absorbing part 200 at a specific position designated by the user arbitrarily.

Also, as shown, the close contact part 300 and the support fixing part 400 may be used together.

In the height direction of the sound insulating part 100, a close contact part 300 on the inside of the sound insulating part 100, a sound absorbing part 200 on the lower part of the close contact part 300, and a support fixing part 400 on the lower part of the sound absorbing part 200 ), the sound absorbing part 200 under the support fixing part 400, and the close contact part 300 under the sound absorbing part 200 may be disposed.

In this way, since the close contact part 300 and the support fixing part 400 are disposed around the sound absorbing part 200, the sound absorbing part 200 is compressed, and the sound insulating part 100 is pressed in the thickness direction so that the sound absorbing part 200 density can be increased.

Through this, the average acoustic attenuation coefficient [dB] of the sealing unit 11 according to an embodiment of the present invention was measured as 39 (-1) dB.

The test results were conducted through the KCC Central Research Institute, and the accommodation room volume was 50.1m ² , the volume of the sound source room was 57.8m ² , and the experiment was conducted in the center frequency range of 100hz to 5000hz.

In general, when the sound pressure ratio (SPL: SOUND PRESSURE LEVEL) is 3, dB has 6.

Therefore, the improvement of 6 dB to 7 dB compared to the door sound attenuation coefficient of the present invention of 33 dB to 34 dB is a value that reduces the energy felt by a person twice.

Therefore, the high-density soundproof insulation door of the present invention was able to obtain the optimal sound attenuation coefficient [dB] by using the sound insulation part 100 4mm and the sound absorbing part 200 40mm having the above composition ratio.

Graph 1 below is a graph showing the normal distribution of high-density soundproofing and insulating doors according to the present invention.

The x-axis of Graph 1 represents the thickness, and the y-axis represents the acoustic attenuation coefficient [dB].

It can be seen that the acoustic attenuation coefficient [dB] is the highest when the thickness of the door according to the present invention is 48T.

<Table 1: Acoustic attenuation coefficient according to thickness>

And even in the test results measured by the KS F ISO 10140-2:2016 acoustics - sound insulation performance laboratory measurement method of building members in the same institution, the single numerical evaluation amount Rw + C = 39 (-1) dB (ISO 717-1: 2013) of I was able to get results.

In addition to sound insulation and sound insulation, tests and evaluations were also conducted for insulation and airtightness.

In the KSF 2278:2017 Test Method for Insulation of Doors and Doors/KS F 2292:2013 Test Method for Airtightness of Windows and Doors, the insulation performance was measured as 0.856W/(m2·K), and the airtightness performance was 0.70m ³ /hm ² has been measured

It can be confirmed that the result significantly exceeds the 35dB required in the current soundproofing and soundproofing door market.

As described above, the high-density soundproof and insulated door according to an embodiment of the present invention is intended to reduce the transmission of noise generated from the washing machine 19 or the boiler 18 to the living space 15 in the noise generating space 14. As shown in 7, in the noise generating space 14, 50 dB to 70 dB of noise from the washing machine 19 or 50 dB to 80 dB of the boiler 18 operating sound passes through the high-density soundproof insulation door of the present invention, and the high-density sound insulation part 100 and all directions It can flow into the living space 15 with low noise by the sound absorbing part 200 placed under pressure.

As described above, the high-density soundproofing insulation door according to the present invention has a soundproofing function close to 30dB, which is the recommended nighttime noise standard recommended by the WHO (World Health Organization), while using glass wool to provide excellent insulation performance Soundproofing It is designed to provide a sound insulation door.

Such attempts have been made by various companies, and in the conventional case, finishing materials, sound insulation materials, and Styrofoam were used, and it was confirmed that the thickness was not only thick, but the sound insulation and heat insulation performance was lower than that of this product despite the thickness.

For example, company A and company B, which sell soundproof doors on the market, will be described in comparison with the present invention.

Company A, like most companies, uses Styrofoam for insulation. When using Styrofoam, the manufacturing cost can be lowered, but the sound absorption and heat insulation performance to be originally pursued is inevitably low.

In the case of company B, as the ABS material panel and general PVC panel are bonded, defects inevitably occur depending on environmental factors.

However, unlike the conventional PVC panel, the sound insulation part 100 of the present invention has the composition described in the test report and has high-density sound insulation performance.

Specifically, the sound insulation part 100 of the present invention has undergone test results at KCC Central Research Institute and has been certified for its performance. Existing products have a dual structure of sound insulation material and finishing material, whereas in the present invention, the sound insulation part 100 is a single The composition shows the performance of high density and thin thickness.

Therefore, it is expected that the sound insulation performance of the sound insulation part 100 of the present invention will be further improved when a finishing material is added, such as a door in which a plurality of sound insulation parts 100 are formed according to living environment conditions or a finishing material of another company.

Figure 7 examined based on the above information is a sealing unit (

In addition, the high-density soundproofing and insulating door according to the present invention is not limited to indoors and can be installed anywhere where noise is generated.

Therefore, as shown in FIG. 8, the high-density soundproof door according to an embodiment of the present invention may be provided in the form of a sliding door or casement for sealing the opening 16, and the sound insulation part 100 and the sound absorbing part 200 of the present invention If provided, it can be installed in various forms.

As described above, the preferred embodiments according to the present invention have been reviewed, and the fact that the present invention can be embodied in other specific forms without departing from the spirit or scope in addition to the above-described embodiments is a matter of ordinary knowledge in the art. It is self-evident to them. Therefore, the embodiments described above are to be regarded as illustrative rather than restrictive, and thus the present invention is not limited to the above description, but may vary within the scope of the appended claims and their equivalents.

11: sealing unit
12: frame unit
13: fixed connection unit
100: sound insulation part
200: sound absorbing part
300: close contact part
400: support fixing part
600: position fixing part

Claims (12)

A frame unit installed in the opening;
a fixed connection unit coupled to the frame unit to be supported and moved toward the opening; and
a sealing unit coupled to the fixed connection unit and moving to seal the opening;
including,
The sealing unit is provided inside the sound insulating part together with a sound absorbing part for sucking sound, a sound insulating part provided to cover at least a part of the sound absorbing part, and the sound absorbing part, and the sound absorbing part has a height or width of the sound insulating part Including a close contact part disposed adjacent to the sound absorbing part so as to correspond,
The sound absorbing part,
Characterized in that it comprises a density maintaining network provided to surround the circumference of the sound-absorbing part when it has a lattice structure,
High-density sound insulation insulated door.
According to claim 1,
The sealing unit,
Characterized in that the sound-absorbing part having elasticity is disposed between a pair of the sound-insulating parts having the same size, and the sound-absorbing part forms a predetermined thickness by compressing the sound-absorbing part.
High-density sound insulation insulated door.
According to claim 2,
Characterized in that the thickness of the sound-absorbing part is greater than the distance between the pair of sound-absorbing parts,
High-density sound insulation insulated door.
delete According to claim 2,
The sealing unit,
Characterized in that at least one sound absorbing part is disposed corresponding to the height of the sound insulating part corresponding to the height of the opening, and the close contact parts are disposed at both ends of the sound absorbing part.
High-density sound insulation insulated door.
According to claim 5,
The close-fitting part,
Characterized in that a plurality of the sound-absorbing parts are disposed and disposed between the sound-absorbing parts,
High-density sound insulation insulated door.
According to claim 5,
Characterized in that the thickness of the close-fitting part and the thickness of the sound-absorbing part are 35 mm to 47 mm, and the thickness of the sound insulation part is 3.0 mm to 4.5 mm.
High-density sound insulation insulated door.
According to claim 7,
Characterized in that the thickness of the close part is 42 mm to 47 mm, the thickness of the sound insulation part is 3.6 mm, and the thickness of the sound absorbing part is 35 mm to 40 mm.
High-density sound insulation insulated door.
According to claim 1,
The sound insulation part,
PVC: 35%, Caco ³ : 62% and additives: characterized by consisting of a specific gravity of 3%,
High-density sound insulation insulated door.
According to claim 9,
The sound insulation part,
Characterized in that the density is 2.15kgs/m ³ ,
High-density sound insulation insulated door.
According to claim 1,
The fixed connection unit,
Characterized in that it is provided to slide on the frame unit,
High-density sound insulation insulated door.
According to claim 1,
The fixed connection unit,
Characterized in that it is rotatably provided in the frame unit,
High-density sound insulation insulated door.

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