KR102598583B1 - Noise reduction type heat recovering ventilation apparatus - Google Patents

Abstract

The present invention relates to a noise reduction heat recovery ventilator, wherein an air supply inlet and an exhaust outlet are formed on one side, an air supply outlet and an exhaust inlet are respectively formed on the bottom, and an air supply flow path and an exhaust air passage leading from the air supply inlet to the air supply outlet are provided. A device housing formed so that exhaust passages leading from the inlet to the exhaust outlet intersect each other, a total heat exchange element installed at the intersection of the air supply passage and the exhaust passage to exchange heat between the supply air and exhaust air, and the air supply passage and the exhaust air. It may include a supply air blower and an exhaust blower, respectively installed in the flow path, and an air supply guider, which is installed at the air supply outlet and guides the air discharged from the air supply outlet to diffuse and be supplied.
According to the present invention, there is an advantage in that the air supplied from the air supply outlet is diffused and dispersed in one direction and is discharged to minimize the generation of air supply noise, thereby improving convenience of use and ventilation efficiency.

Description

Noise reduction type heat recovery ventilation apparatus}

The present invention relates to a heat recovery ventilation device, and in particular, in a ductless heat recovery ventilation device in which supply and exhaust are supplied and discharged directly without going through a duct, a noise-reducing heat recovery device that can improve convenience of use by reducing supply noise and improve ventilation efficiency at the same time. It's about ventilation.

In general, a ventilation device is installed inside a building to comfortably ventilate the air in a sealed room by discharging indoor polluted air to the outside and introducing fresh outdoor air into the room.

In the past, such ventilation devices were simply structured to exhaust indoor air to the outdoors through a blower and bring outdoor air into the indoors, resulting in excessive waste of energy due to heat loss as the heated or cooled air from indoors was discharged outdoors as is. There was a problem.

In other words, in the summer, the cooled indoor air is discharged to the outdoors and the hot outdoor air is brought indoors. As the indoor temperature rises, the cooling efficiency decreases and energy consumption inevitably increases. Conversely, in the winter, the heated air is discharged indoors. As indoor air is discharged to the outdoors and cold outdoor air is introduced indoors, heating efficiency decreases as the indoor temperature decreases, resulting in an increase in energy consumption.

In response to this simple ventilation problem, a heat recovery ventilation device has been proposed that can minimize heat loss generated during the ventilation process and maintain indoor temperature through heat exchange between indoor air exhausted to the outside and outdoor air supplied indoors. It is being used.

The heat recovery ventilation device is formed such that an air supply passage through which outdoor air flows into the room and an exhaust passage through which indoor air is discharged to the outdoors intersect inside the device housing, and a total heat exchange element is installed at the intersection of the air supply passage and the exhaust passage. It is configured to exchange heat between the external air supplied and the internal air exhausted as it passes through the insulation exchange element.

These heat recovery ventilators can be classified into duct type and non-duct type depending on the method of supplying and exhausting indoor air. In particular, the ductless type has a structure in which the exhaust inlet and air supply outlet communicate directly with the indoor space, not through ducts and diffusers. This is a method in which supply and exhaust are carried out without any problem.

However, in the case of such a ductless heat recovery ventilator, air is discharged directly into the room from the air supply outlet adjacent to the discharge end of the air blower, so compared to a duct-type heat recovery ventilator in which air is discharged through a diffuser after passing through a duct, the air is relatively discharged into the room. As a result, a large amount of air supply noise is inevitable, and there is a problem that this air supply noise causes inconvenience in use.

Registered Patent No. 10-1560192 (Announcement Date: October 14, 2015)

The present invention is proposed to solve the above-described conventional problems. The purpose of the present invention is to minimize the generation of air supply noise by encouraging the air supplied from the air supply outlet to be discharged while spreading in one direction, thereby improving convenience of use and ventilation efficiency. The goal is to provide a noise-reducing heat recovery ventilation device that can

As a means of solving the problems of the present invention to achieve the above-mentioned purpose,

An air supply inlet and an exhaust outlet are formed on one side, and an air supply outlet and an exhaust inlet are formed on the bottom, and an air supply path leading from the air supply inlet to the air supply outlet and an exhaust flow path leading from the exhaust inlet to the exhaust outlet are formed to cross each other. An apparatus housing, a total heat exchange element installed at the intersection of the air supply passage and the exhaust passage to exchange heat between the air supply and exhaust air, a supply air blower and an exhaust blower respectively installed in the air supply passage and the exhaust air passage, and A device cover consisting of an upper frame coupled to the lower part of the device housing along the bottom edge of the device housing, and a cover plate supported by the upper frame and spaced downward at a certain interval to form a ventilation space between the device housing and the device housing. and an air supply guider installed at the air supply outlet and guiding the air discharged downward from the air supply outlet to be supplied while spreading in one direction of the ventilation space, wherein the air supply guider is coupled to the air supply outlet and moves downward. A body portion is formed in which a pair of vertical plates are protruding and connected to each other at an obtuse angle, and at the lower center portion is formed a horizontal plate having an arc-shaped tip while being bent horizontally from the pair of vertical plates, and is arranged in front of the pair of vertical plates. A noise-reducing heat recovery ventilator is disclosed, which includes a plurality of wing parts extending in an arc shape and having both left and right ends connected to a pair of vertical plates.

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Additionally, the wing portion may have a cross-sectional shape that extends vertically for a certain length from the top and then is bent forward and inclined downward for a certain length.

In addition, the plurality of wing parts are arranged to form concentric circles with each other and to be spaced apart from each other at regular intervals in the front and rear direction. The upper end of the front wing part corresponds to the lower end of the rear wing part in the vertical direction, and the last wing part corresponds to the upper end of the plurality of wing parts in the vertical direction. The upper part may be arranged so that its vertical position corresponds to the tip of the horizontal plate.

According to the noise reduction heat recovery ventilation device according to the present invention,

By guiding the air discharged directly into the room through the air supply guider installed at the air supply outlet to spread and disperse in one direction, it is possible to reduce air supply noise and eliminate inconvenience in use, while also improving air supply efficiency by minimizing air supply resistance. There is an advantage to being able to do it.

In addition, it is to be added that, in addition to the effects specifically stated above, unique effects that can be easily derived and expected from the characteristic configuration of the present invention may also be included in the effects of the present invention.

1 is a diagram illustrating the external configuration of a noise reduction type heat recovery ventilator according to an embodiment of the present invention;
Figure 2 is a diagram illustrating the configuration of a device housing according to an embodiment of the present invention;
Figure 3 is a diagram illustrating a separated device housing and device cover according to an embodiment of the present invention;
Figure 4 is a diagram illustrating a three-dimensional air supply guider according to an embodiment of the present invention;
Figure 5 is a three-dimensional diagram illustrating the air supply guider according to an embodiment of the present invention from the rear side;
Figure 6 is a three-dimensional illustration of the air supply guider according to an embodiment of the present invention by turning it upside down;
Figure 7 is a plan view illustrating the air supply guider according to an embodiment of the present invention;
Figure 8 is a diagram illustrating a cross section of the air supply guider along line “AA” in Figure 7;
Figure 9 is a cross-sectional view illustrating a state in which the air supply guider is installed between the device housing and the device cover.

Hereinafter, a preferred embodiment of the noise reduction type heat recovery ventilator according to the present invention will be described in detail with reference to the attached drawings.

This embodiment is provided to explain the present invention more clearly to those with average knowledge in the art, and the shape, size, number, and spacing between elements of the elements in the attached drawings are provided for a clearer explanation. It may be expressed in a reduced or exaggerated manner for emphasis, and is not limited to the matters illustrated in the drawings unless specifically limited.

Additionally, when describing an embodiment, if a component is described as being “provided,” “formed,” “installed,” “coupled,” “fixed,” or “connected” to another component, , it may be directly provided, formed, installed, combined, fixed, or connected to other components, but it should be understood that other components may exist in the middle.

In addition, terms indicating directions such as front, back, left, right, up, down, etc. are only used to describe the direction shown and observed in the drawing, and these terms may also change if the shown and observed direction changes. It must be understood that it exists.

In addition, when describing the embodiments, in principle, if it is determined that matters already obvious to those skilled in the art, such as related known functions or known configurations, may unnecessarily obscure the technical features of the present invention, We will omit the explanation.

1 to 9 illustrate a noise reduction heat recovery ventilator according to an embodiment of the present invention.

First, as illustrated in FIGS. 1 to 3, a noise reduction type heat recovery ventilation device (hereinafter abbreviated as “ventilator”) according to an embodiment of the present invention includes a device housing 100 and a total heat exchanger. It may include an element 200, an air supply blower 300a and an exhaust blower 300b, a device cover 400, and an air supply guider 500.

The device housing 100 forms the overall appearance of the ventilation device and is a part that accommodates the basic components for ventilation, namely the total heat exchange element 200, the air supply blower 300a, and the exhaust blower 300b.

The device housing 100 has an air supply inlet 110, an air supply outlet 120, an exhaust inlet 130, and an exhaust outlet 140 for ventilation, and there is an air supply flow path (S.F.) and an exhaust flow path ( E.F) is formed.

The air supply inlet 110 is a part through which outside air flows in from the outdoors, the air supply outlet 120 is a part through which the inflowed outside air is discharged into the room, and the exhaust inlet 130 is a part through which air flows in from the inside. And the exhaust outlet 140 is a part where air introduced from the room is discharged to the outdoors.

As illustrated in the drawings, the air supply inlet 110 and the exhaust outlet 140 are parts through which outdoor air flows in or indoor air is discharged outdoors, so they may be formed on one side of the device housing 100, Each can be connected to a ventilation duct (not shown) installed to extend outdoors.

On the other hand, the air supply outlet 120 and the exhaust inlet 130 are parts through which indoor air flows in or outside air is discharged indoors, so they are each formed on the bottom of the device housing to allow ventilation with the indoor air directly without passing through a duct. It can be.

That is, indoor air is directly sucked in through the exhaust inlet 130, and outdoor air is directly discharged indoors through the air supply outlet 120.

The air supply flow path (S.F) is a flow path that leads from the air supply inlet (110) to the air supply outlet (120) and guides the outside air to be supplied, and the exhaust flow path (E.F.) leads from the exhaust inlet (130) to the exhaust outlet (140). As a flow path for exhausting air, the air supply flow path (S.F) and the exhaust air flow path (E.F.) are formed to cross each other.

The device housing 100, which has a configuration for the ventilation function as described above, may be formed in the form of a hexahedron as illustrated in the drawing, and a corner inclined surface 150 that is chamfered and inclined at a certain angle may be formed at each corner. .

The corner inclined surface 150 is an inclined surface formed at an angle at each corner of the device housing 100, and a bolt bracket 160 may be formed to protrude on this corner inclined surface 150.

The bolt bracket 160 is a configuration for installing the ventilation device of the present invention on the ceiling, and is coupled with an anchor bolt so that the device housing 100 can be fixed and supported by an anchor bolt (not shown) fixed to the ceiling wall. This is the part that takes place.

Next, the total heat exchange element 200 is installed at the intersection of the air supply flow path (S.F) and the exhaust flow path (E.F.). Accordingly, the outside air flowing into the air supply inlet 110 and the inside air flowing into the exhaust inlet 130 are As they pass through the heat exchange elements 200, heat exchange takes place between them.

The total heat exchange element 200 may be configured in the shape of a square box in which functional corrugated cardboard is stacked at right angles so that heat exchange occurs without mixing the incoming and outgoing outdoor air with the internal air. However, it is not limited to this, and heat exchange elements of various known structures may be used.

The air supply blower (300a) is installed in the air supply passage (S.F.), and the exhaust blower (300b) is installed in the exhaust passage (E.F.). Specifically, the air supply blower (300a) is installed in the air supply passage (E.F.) adjacent to the air supply outlet (120). It is installed on the rear side of the exhaust flow path (E.F), and the exhaust blower (300b) may be installed on the rear side of the exhaust flow path (E.F) adjacent to the exhaust outlet (140).

These air supply blowers (300a) and exhaust blowers (300b) are blowers for forcibly introducing and blowing out outdoor air and indoor air through the supply air flow path (S.F) and exhaust flow path (E.F), respectively, and are equipped with a blower motor and a blower motor, respectively. It may be composed of a blowing fan that forcibly blows out air while being rotated.

Next, the device cover 400 is coupled to the lower part of the device housing 100 and can cover the device housing 100 installed inside the ceiling so that it is not exposed downward.

This device cover 400 may include an upper frame 410 and a cover plate 420, as illustrated in FIG. 3 .

The upper frame 410 may be coupled along the bottom edge of the device housing 100.

This upper frame 410 may be composed of a plurality of frame bars 411 connected in a structure corresponding to the edge shape of the device housing 100, and when the upper frame 410 is coupled to the bottom of the device housing 100 The bottom of the device housing 100 may remain exposed without being obscured.

A panel block 412 may be formed on one side of the upper frame 410, and the panel block 412 includes a display means that displays the operating status of the ventilation device or the indoor air condition so that the user can recognize it. , a communication unit for transmitting and receiving signals with a remote control, etc. may be provided.

The cover plate 420 is a plate material of a certain size and is located below the upper frame 410 to prevent the bottom of the device housing 100 from being exposed downward.

This cover plate 420 is supported on the upper frame 410 by a plurality of support pieces 421 and can be positioned at a certain distance downward from the upper frame 410.

In this way, the cover plate 420 is spaced downward at a certain distance from the upper frame 410 coupled to the bottom of the device housing 100, so that the bottom surface of the device housing 100 and the air supply outlet 120 and the exhaust inlet 130 are formed. A ventilation space is formed between the cover plates 420 through which internal air can be sucked in and outdoor air can be discharged.

Next, the air supply guider 500 is installed at the air supply outlet 120 of the device housing 100 to diffuse and disperse the air discharged from the air supply outlet 120 to reduce air supply noise and achieve efficient air supply. Perform the function of guiding as much as possible.

The air supply guider 500 for this purpose is illustrated in FIGS. 4 to 8. As illustrated in the drawings, the air supply guider 500 includes a body portion and a wing portion 530 when viewed broadly. It can be configured.

The body part is coupled to the air supply outlet 120 and protrudes downward from the air supply outlet 120, thereby preventing the air discharged from the air supply outlet 120 from hitting the cover plate 420 and spreading in all directions, and preventing the air from spreading in all directions. It is possible to induce air supply by spreading only in one direction toward the front of the body, that is, only in one direction of the ventilation space.

As illustrated in the drawings, this body part may be configured to include a pair of vertical plates 510 and a horizontal plate 520.

The pair of vertical plates 510 extend vertically downward from the air supply outlet 120 and may be connected to each other at an obtuse angle.

That is, as illustrated in FIG. 7 , when viewed from a plan view, the pair of vertical plates 510 may be obliquely extended so that the distance between them increases from the rear central portion toward the front.

This pair of vertical plates 510 has an obtuse angle shape that guides the air discharged downward from the air supply outlet 120 to spread only toward the front.

Here, in consideration of the arrangement structure and improvement of the diffusion angle of the blowers (300a, 300b) installed close to the air supply outlet (120), as illustrated in Figures 5 and 7, one of the pair of vertical plates (510) The vertical plate 510 may have a bent extension portion 511 that is bent at a certain angle and extends rearward from about the middle of the extension length.

The horizontal plate 520 is formed at the bottom center of the body portion, and may be formed by bending horizontally from the bottom of the pair of vertical plates 510 toward the front.

As illustrated in FIGS. 4 and 6, the front end 521 of this horizontal plate 520 may be formed in an arc shape.

The wing portion 530 is formed in front of a pair of vertical plates 510, and extends in an arc shape so that both left and right ends can be connected to the pair of vertical plates.

As illustrated in the cross-sectional view of FIG. 8, the wing portion 530 may have a cross-sectional shape that extends vertically for a certain length from the top and then curves forward and extends downward for a certain length.

That is, the wing portion 530 has a circular arc shape when viewed in the longitudinal direction on a plane, as illustrated in FIG. 7, and extends left and right between a pair of vertical plates 510, and when viewed in cross section, it is illustrated in FIG. 8. It may have a shape close to a streamlined L-shape, extending vertically and then sloping downward toward the front.

The wing portions 530 of the above configuration are comprised of a plurality, and may be arranged to form concentric circles with each other and to be spaced apart from each other at regular intervals in the front and rear directions.

In addition, between the plurality of wing parts 530 arranged in a concentric circle, the upper end of the front wing part 530 corresponds to the lower end of the rear wing part 530 in the vertical direction, and the uppermost wing part 530 has the upper end. The distal end 521 of the flat plate 520 may be arranged so that the vertical positions correspond to each other.

That is, as illustrated in FIG. 7, when viewed on a plane, the upper arc of the last wing portion 530 closest to the horizontal plate 520 corresponds to the arc of the tip portion 521 of the horizontal plate 520 in the vertical direction. It can be (coincident or close to), and the upper arcs of the remaining wing portions 530 may correspond in their vertical positions to the lower arcs of the wing portions 530 located rearward of the wing portions 530.

Meanwhile, the air supply guider 500 of the above configuration has a flange end 540 and an insertion piece 550 at the top of the body portion, as illustrated in the drawings, for airtight coupling with the air supply outlet 120. can be formed.

The flange end 540 is formed at the top of the body portion and is in close contact with the bottom of the device housing 100 along the edge of the air supply outlet 120, and the insertion piece 550 is located upward from the flange end 540. It is a part that protrudes and is inserted into the air supply outlet (120).

The flange end 540 and the insertion piece 550 are not only the upper part of the pair of vertical plates 510 constituting the body portion, but also the air supply outlet 120 so that they can be coupled and inserted along the entire edge of the air supply outlet 120. ) can be formed integrally on the front side, corresponding to the shape of ).

In addition, in order to ensure structural safety between the plurality of wing parts 530, the plurality of wing parts 530 extend radially forward from the pair of vertical plates 510 and connect and support the pair of vertical plates 510 and the plurality of wing parts 530. A support plate 560 may be further formed.

As illustrated in FIG. 9, the air supply guider 500 having the above configuration is installed coupled to the air supply outlet 120 and is located in the ventilation space between the bottom of the device housing 100 and the cover plate 420. .

And, in this state located in the ventilation space, the air discharged from the air supply outlet 120 can be easily discharged in one direction without receiving resistance from the cover plate 420 blocking the lower side of the air supply outlet 120. In addition to improving ventilation efficiency by inducing air to be dispersed in one direction and distributed and discharged along the divided flow path, noise generated during air supply is reduced.

That is, the air discharged downward from the air supply outlet 120 has its discharge path toward the rear blocked by a pair of rear vertical plates 510 connected to each other at an obtuse angle and a horizontal plate 520 formed at the bottom and a cover plate. The collision resistance with (420) is minimized and discharge is achieved by spreading only toward the front.

In addition, the diffusion of air is accelerated by the plurality of wing parts 530 that are arranged in concentric circles at regular intervals and have a streamlined cross-sectional shape, and the air is dispersed and discharged along the divided paths, thereby further reducing mutual noise. It will be canceled out.

Therefore, it can be seen that according to the heat recovery ventilation device of the present invention, it is possible to improve air supply efficiency and minimize inconvenience in use due to supply air noise through unidirectional diffusion and dispersion of air by the air supply guider 500.

Preferred embodiments of the present invention have been described in detail above, but the technical scope of the present invention is not limited to the content described in the above-described embodiments and drawings, and can be modified or modified by those skilled in the art. It will be said that the changed equivalent configuration does not deviate from the scope of the technical idea of the present invention.

The symbols for major parts in the attached drawings are explained as follows.
100: device housing 120: air supply outlet
200: Heat exchange element 400: Device cover
410: Top frame 420: Cover plate
500: Supply guider 510: Vertical plate
520: horizontal plate 530: wing part

Claims (5)

An air supply inlet 110 and an exhaust outlet 140 are formed on one side, and an air supply outlet 120 and an exhaust inlet 130 are formed on the bottom, and the air supply inlet 110 is connected to the air supply outlet 120. A device housing (100) formed so that the supply air passage (SF) and the exhaust passage (EF) leading from the exhaust inlet (130) to the exhaust outlet (140) intersect each other;
A total heat exchange element 200 installed at the intersection of the air supply flow path (SF) and the exhaust flow path (EF) to exchange heat between the supplied air and the exhausted air;
a supply air blower (300a) and an exhaust blower (300b) installed in the air supply passage (SF) and exhaust passage (EF), respectively;
The device housing 100 is coupled to the lower part of the device housing 100, and is coupled to the upper frame 410 along the bottom edge of the device housing 100, and is supported by the upper frame 410 and spaced downward at a certain interval. ) A device cover 400 consisting of a cover plate 420 forming a ventilation space between the devices; and
It is installed at the air supply outlet 120 and guides the air discharged downward from the air supply outlet 120 to spread in one direction of the ventilation space and supply air.
The air supply guider 500,
It is coupled to the air supply outlet 120 and protrudes downward, and a pair of vertical plates 510 are connected to each other at an obtuse angle, and at the center of the bottom, a tip portion 521 of an arc shape is bent horizontally from the pair of vertical plates 510. ) a body portion formed with a horizontal plate 520 having,
A noise-reducing heat recovery ventilator comprising a plurality of wing portions 530 arranged in front of the pair of vertical plates 510 and extending in an arc shape so that both left and right ends are connected to the pair of vertical plates 510. delete delete According to clause 1,
The wing portion 530 is a noise-reducing heat recovery ventilator having a cross-sectional shape that extends vertically for a certain length from the top and then curves forward and extends downward for a certain length. According to clause 4,
The plurality of wing portions 530 are arranged at regular intervals in the front and rear directions while forming concentric circles with each other,
Among the plurality of wing parts 530, the upper end of the front wing part 530 corresponds to the lower end of the rear wing part 530 in the vertical direction, and the uppermost wing part 530 has an upper end of the horizontal plate 520. A noise reduction type heat recovery ventilator, characterized in that the vertical positions correspond to (521).

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