Heat-recovery ventilation unit with automatic filter cleaning

Abstract

The present invention comprises a case having a bypass ventilation space on one side, and an outdoor air intake space having an outdoor air intake port by means of a partition, an indoor air intake space having an indoor air intake port, an indoor air exhaust space having an indoor air exhaust port, and an outdoor air exhaust space having an outdoor air exhaust port, wherein an automatic dust cleaning type filter means is installed in each of the outdoor air intake port and the indoor air intake port, and a blower fan is installed in each of the indoor air exhaust space and the outdoor air exhaust space, and the dust discharge pipe of each automatic dust cleaning type filter means is connected to the outdoor air exhaust space, and an opening is formed in the outdoor air intake space, the indoor air intake space, and the indoor air exhaust space to be connected to the bypass ventilation space, and the indoor air intake space is divided by a blocking plate to form an opening in the blocking plate, and the opening of the blocking plate and the outdoor air intake port, the indoor air intake port, the indoor air exhaust port, the outdoor air exhaust port, The purpose is to provide a heat recovery ventilation device capable of automatic filter cleaning, wherein dampers are formed at the opening of the outdoor air intake space and the opening of the indoor air exhaust space, respectively, so that they can be opened and closed.

Description

Technology Field

[0001] The present invention relates to a heat recovery type ventilation device capable of automatic filter cleaning, and more specifically, to a heat recovery type ventilation device capable of heat recovery by being equipped with a heat exchange element, and capable of automatically cleaning a filter for filtering dust in outdoor air drawn into the indoor space and a filter for filtering dust in indoor air discharged from the indoor space to the outdoor space. Background Technology

[0003] Generally, air purification devices for ventilating indoor air are designed to guide indoor air to the outside or outdoor air to the inside, and are installed in various facilities such as general houses and apartments, as well as schools, hospitals, kitchens, and subway stations.

[0004] In particular, among air purifiers, a heat recovery type air purifier is equipped with a heat exchanger inside the case, and an outdoor air intake space for drawing in outdoor air, an outdoor air exhaust space for discharging indoor air to the outside, an indoor air exhaust space for discharging outdoor air towards the inside, and an indoor air intake space for drawing in indoor air are formed.

[0005] In addition, the heat exchanger is a tool for saving energy by enabling heat exchange between indoor air and outdoor air, and ventilation holes for intake and exhaust are formed in the outdoor air intake space, outdoor air exhaust space, indoor air exhaust space, and indoor air intake space of the air purification device to control the indoor space to a temperature, humidity, and airflow distribution suitable for human activity, and at the same time remove dust and other particles from the air.

[0006] However, a dust removal filter is installed on one side of the aforementioned heat exchanger, namely the side where outdoor air is drawn in, and on the other side of the heat exchanger, namely the side where indoor air is drawn in, to minimize damage to the heat exchanger caused by dust. However, until now, no air circulation device with a structure capable of automatically cleaning dust from such supply and exhaust filters has been developed. Consequently, after a certain period of time has passed since the filter was used, a worker must manually open the casing of the air circulation device to clean or replace the internal supply and exhaust filters. To address this, an automatic dust cleaning type filter means that automatically brushes the filter has been developed and disclosed by the applicant. Furthermore, to resolve the disadvantage that the dust brushed off by the brush cannot be discharged to the outside from the filter, i.e., the ventilation device, and thus contaminates the air, a technical configuration for discharging this dust to the outside of the ventilation device has also been disclosed in the applicant's development.

[0007] However, the problem is that in the case of ventilation systems equipped with heat exchangers, two filter means are installed: one to filter dust from the air drawn in from the outside to the inside, and conversely, to filter dust from the air discharged from the inside to the outside. Yet, in order to reduce manufacturing costs, no attempt has been made to solve this issue by utilizing only two blower fans and two automatic dust cleaning type filter means without significantly altering the configuration of the existing ventilation system.

[0009] [Prior Art Literature]

[0010] 1. Published Patent No. 10-2018-0132745

[0011] 2. Registered Patent No. 10-1828587 The problem to be solved

[0013] The objective of the present invention is to enable heat recovery by providing a heat exchange element, and to enable automatic cleaning of a filter for filtering dust in outdoor air drawn into the indoor space and a filter for filtering dust in indoor air discharged from the indoor space to the outdoor space, by utilizing only two blower fans and two automatic dust cleaning type filter means. means of solving the problem

[0015] The heat recovery type ventilation device of the present invention for achieving the above-mentioned purpose comprises a case having a bypass ventilation space on one side, an outdoor air intake space having an outdoor air intake port by means of a partition and having a heat exchange element inside the case, an indoor air intake space having an indoor air intake port, an indoor air exhaust space having an indoor air exhaust port, and an outdoor air exhaust space having an outdoor air exhaust port, wherein an automatic dust cleaning type filter means is installed in each of the outdoor air intake port and the indoor air intake port, and a blower fan is installed in each of the indoor air exhaust space and the outdoor air exhaust space, wherein the dust discharge pipe of each automatic dust cleaning type filter means is connected to the outdoor air exhaust space, and an opening is formed in the outdoor air intake space, the indoor air intake space, and the indoor air exhaust space to be connected to the bypass ventilation space, and wherein the indoor air intake space is divided by a blocking plate to form an opening in the blocking plate, and the opening of the blocking plate and the outdoor air intake port, It is characterized by having dampers formed in the indoor air intake, indoor air exhaust, outdoor air exhaust, the opening of the outdoor air intake space, and the opening of the indoor air exhaust space, respectively, so that they can be opened and closed. Effects of the invention

[0017] The above-described effect of the present invention is that it is a very useful invention that enables heat recovery by providing a heat exchange element, and enables automatic cleaning of a filter for filtering dust in outdoor air drawn into the indoor space and a filter for filtering dust in indoor air discharged from the indoor space to the outdoor space, while making this possible by utilizing only two blower fans and two automatic dust cleaning type filter means. Brief explanation of the drawing

[0019] FIG. 1 is a schematic plan view of the heat recovery type ventilation device of the present invention. FIG. 2 is a schematic side view of the heat recovery type ventilation device of the present invention. FIG. 3 is a perspective view showing only the automatic dust cleaning type filter means in the present invention. Figures (I) and (II) of FIG. 4 are reference diagrams for showing the airflow path for cleaning the dust automatic cleaning type filter means installed in the indoor air intake in the present invention. Figures (I) and (II) of FIG. 5 are reference diagrams for showing the airflow path for cleaning the dust automatic cleaning type filter means installed at the outdoor air intake in the present invention. Figures (I) and (II) of FIG. 6 are reference diagrams for showing the airflow path in the internal circulation clean operation mode in the present invention. Figures (I) and (II) of FIG. 7 are reference diagrams for showing the airflow path in the condensation prevention operation mode in the present invention. Figures (I) and (II) of FIG. 8 are reference diagrams for showing the airflow path in the bypass operation mode in the present invention. FIG. 9 is a planar structural diagram illustrating another embodiment of the heat recovery type ventilation device of the present invention. Specific details for implementing the invention

[0020] Hereinafter, embodiments of the present invention are described in detail with reference to the attached drawings so that those skilled in the art can easily implement the invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. Technical terms used herein are intended merely to refer to specific embodiments and are not intended to limit the invention. Also, singular forms used herein include plural forms unless the phrases clearly indicate otherwise. The meaning of "comprising" as used in the specification specifies a particular characteristic, area, integer, step, operation, element, and / or component, and does not exclude the existence or addition of other particular characteristics, areas, integers, steps, operations, elements, components, and / or groups. Unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as generally understood by those skilled in the art to which the present invention belongs. Terms defined in commonly used dictionaries are further interpreted to have meanings consistent with relevant technical literature and the present disclosure, and are not interpreted in an ideal or formal sense unless otherwise defined.

[0021] The embodiments of the present invention described with reference to the perspective drawings specifically illustrate ideal embodiments of the present invention. As a result, various variations of the drawings, such as variations in manufacturing methods and / or specifications, are expected. Accordingly, the embodiments are not limited to the specific form of the areas depicted and include variations in form resulting from manufacturing, for example. For example, areas depicted or described as flat may generally have rough or rough and non-linear characteristics. Additionally, parts depicted as having sharp angles may be rounded. Therefore, the areas depicted in the drawings are merely approximate, and their forms are not intended to depict the exact form of the areas or to narrow the scope of the present invention.

[0022] Hereinafter, preferred embodiments of a heat recovery ventilation device capable of automatic filter cleaning according to the present invention will be described in detail with reference to the attached drawings.

[0023] FIG. 1 is a schematic plan view of the heat recovery type ventilation device of the present invention, FIG. 2 is a schematic side view of the heat recovery type ventilation device of the present invention, FIG. 3 is a perspective view showing only the automatic dust cleaning type filter means of the present invention, FIG. 4 (I) and (II) are reference diagrams for showing the airflow path for cleaning the automatic dust cleaning type filter means installed at the indoor air intake of the present invention, FIG. 5 (I) and (II) are reference diagrams for showing the airflow path for cleaning the automatic dust cleaning type filter means installed at the outdoor air intake of the present invention, FIG. 6 (I) and (II) are reference diagrams for showing the airflow path in the internal circulation cleaning operation mode of the present invention, FIG. 7 (I) and (II) are reference diagrams for showing the airflow path in the condensation prevention operation mode of the present invention, and FIG. 8 (I) and (II) are bypasses in the present invention FIG. 9 is a reference diagram showing the airflow path in the operating mode, and is a planar structural diagram illustrating another embodiment of the heat recovery ventilation device of the present invention.

[0024] First, it should be noted that identical components or parts in the drawings are indicated by the same reference numerals whenever possible. Additionally, in describing the present invention, specific descriptions of related known functions or configurations are omitted to avoid obscuring the essence of the invention.

[0025] The present invention comprises a case (110) having a bypass ventilation space (110a) on one side, an outdoor air intake space (111) having an outdoor air intake port (1500) formed by each partition (1130) and having a heat exchange element (120) inside the case (110), an indoor air intake space (112) having an indoor air intake port (1400), an indoor air exhaust space (113) having an indoor air exhaust port (1600), and an outdoor air exhaust space (114) having an outdoor air exhaust port (1700). A dust automatic cleaning type filter means (1200) is installed in each of the outdoor air intake port (1500) and the indoor air intake port (1400), and a blower fan (113a, 114a) is installed in each of the indoor air exhaust space (113) and the outdoor air exhaust space (114). The dust discharge port (1200d) of each of the above-mentioned automatic dust cleaning type filter means (1200) is connected to the indoor air discharge space (114) by means of a dust discharge pipe (1220), and an opening (1110, 1120, 1130) connected to the bypass ventilation space (110a) is formed in each of the above-mentioned outdoor air intake space (111), indoor air intake space (112), and indoor air discharge space (113), and the above-mentioned indoor air intake space (112) is divided by a blocking plate (1300) to form an opening (1310) in the blocking plate (1300), and the outdoor air intake port (1500), indoor air intake port (1400), indoor air intake space (112), outdoor air discharge port (1700), and outdoor air In the opening (1110) of the intake space (111) and the opening (1130) of the indoor air exhaust space (113), a damper (1311, 1510, 1410, 1610, 1710, 1111, 1131) is formed and configured to be opened and closed according to a mode by a control unit (not shown).

[0026] At this time, as illustrated in FIGS. 4 to 8, the mode can be a cleaning mode of the filter (1200c) of each automatic dust cleaning type filter means (1200), as well as an internal circulation cleaning operation mode, a condensation prevention operation mode, a bypass operation mode, etc. At this time, the control unit controls the opening and closing of each damper, the operation and stopping of the blower (113a, 114a), and the operation and stopping of the automatic dust cleaning type filter means (1200), thereby causing the ventilation device (100) of the present invention to be driven according to the mode requested by the user.

[0027] It is preferable that the bypass ventilation space (110a) be formed in the lower part of the case (110), and the bypass ventilation space (110a) is connected to the opening (1110) of the outdoor air intake space (111), the opening (1120) of the indoor air intake space (112), and the opening (1130) of the indoor air exhaust space (113) so that air can pass through them.

[0028] Of course, a damper (1111) is formed in the opening (1110) of the outdoor air intake space (111) and a damper (1131) is formed in the opening (1130) of the indoor air exhaust space (113) so that they can be opened and closed by driving a motor (not shown).

[0029] However, a damper is not formed in the opening (1120) of the indoor air intake space (112). Instead, a blocking plate (1300) is installed between the heat exchanger (120) and the opening (1120) of the indoor air intake space (112), and an opening (1310) is formed in the blocking plate (1300), and then a damper (1311) is installed in the opening (1310). This is because, in order to clean the filter (1200c) of the dust automatic cleaning type filter means (1200) installed in the indoor air intake space (112), that is, the indoor air intake port (1400), air must be sucked in from the outdoor air intake port (1500), and in order to prevent the air sucked in in this way from unnecessarily passing through the heat exchanger (120), the indoor air intake space (112) must be in a blocked state. That is, when the indoor air intake space (112) is blocked, the inhaled outside air does not pass through the heat exchange element (120) but flows in through the opening (1110) of the outdoor air intake space (111) and the opening (1120) of the indoor air intake space (112), and is subjected to a backflow to the filter (1200c) of the automatic dust cleaning type filter means (1200), so that the dust is discharged along with the air through the dust discharge pipe (1220) and the outdoor air discharge space (114) to the indoor air discharge port (1600). At this time, the intake of air and dust is carried out through the blower (113) installed in the indoor air discharge space (113).

[0030] As such, all of the above dampers are opened and closed by the driving of a motor, and the driving of the motor is performed by a control unit provided in the ventilation device (100) of the present invention. The control unit is composed of a PC or a microprocessor, and by a pre-installed program, all electrical driving means, namely the dust automatic cleaning type filter means (1200), the blower fan (113a, 114a), and the dampers (1311, 1510, 1410, 1610, 1710, 1111, 1131), are automatically controlled according to each set mode.

[0031] It is preferable that the above-described automatic dust cleaning type filter means (1200) have a structure in which dust accumulated on the filter (1200c) as shown in FIG. 3 is shaken off by a brush (1200a) that rotates by the driving of a motor (1200b), and the dust shaken off is discharged to the outside through a dust discharge port (1200d). Of course, it is obvious that even if the automatic dust cleaning type filter means is not shown or described in the present invention, it is not limited to that structure as long as the operation of a blower is required.

[0032] However, a dust discharge pipe (1220) is connected to the dust discharge port (1200d) of the above-mentioned automatic dust cleaning type filter means (1200) by a connector (1210) so that the dust can be discharged to the outside of the case (110) through the outdoor air discharge space (114) when the blower fan (113a) is driven.

[0033] As such, since the present invention has a structure in which dust is removed by applying a reverse airflow to the filter of the automatic dust cleaning type filter means (1200), the direction of airflow during cleaning must be formed differently for the automatic dust cleaning type filter means (1200) installed in the outdoor air intake (1500) and the automatic dust cleaning type filter means (1200) installed in the indoor air intake (1400), depending on the direction of airflow.

[0034] Therefore, since it is necessary to control the direction of airflow for this purpose, it is natural that the opening and closing of each damper (1311, 1510, 1410, 1610, 1710, 1111, 1131) by the control unit is required.

[0035] FIG. 9 shows a heat recovery type ventilation device (100) of the present invention in which a sterilization means (2000) is formed on one side of a high-performance dust collection filter (1800) to sterilize the high-performance dust collection filter (1800) attached to one side of a heat exchange element (120) to remove fine dust from the air entering from the outside into the indoor space. At this time, the sterilization means (2000) may include an ultraviolet (UV) irradiation device, a high-temperature heating device, an ozone and plasma generator, a silver nano coating, a chemical coating, etc. The sterilization means (200) as described above is used only in a cleaning mode where indoor air is discharged to the outside, thereby enabling the supply of clean air through the sterilization of the filter. However, it is not used in a mode where air enters directly into the indoor space, thereby preventing the supply of sterilized air in a state harmful to the human body into the indoor space, which helps maintain the health of the user.

[0037] As described above, although the present invention has been explained by limited embodiments, the present invention is not limited thereto, and various modifications and variations are possible within the scope of the technical spirit of the present invention and the equivalent scope of the patent claims described below by those skilled in the art to which the present invention belongs.

Claims

Claim 1 A case having a bypass ventilation space on one side; an outdoor air intake space having an outdoor air intake port by means of a partition, provided with a heat exchanger inside the case, an indoor air intake space having an indoor air intake port, an indoor air exhaust space having an indoor air exhaust port, and an outdoor air exhaust space having an outdoor air exhaust port, wherein an automatic dust cleaning type filter means is installed in each of the outdoor air intake port and the indoor air intake port, and a blower fan is installed in each of the indoor air exhaust space and the outdoor air exhaust space, and the dust discharge pipe of each automatic dust cleaning type filter means is connected to the outdoor air exhaust space, and an opening is formed in the outdoor air intake space, the indoor air intake space, and the indoor air exhaust space that is connected to the bypass ventilation space, and the indoor air intake space is divided in two by a blocking plate to form an opening in the blocking plate, and the opening of the blocking plate and the outdoor air intake port, the indoor air intake port, the indoor air exhaust port, the outdoor air exhaust port, A heat recovery ventilation device capable of automatic filter cleaning, characterized in that dampers are formed in the opening of the outdoor air intake space and the opening of the indoor air exhaust space, respectively, so as to be opened and closed. Claim 2 A heat recovery type ventilation device capable of automatic filter cleaning, characterized in that, in claim 1, a high-performance dust collection filter is formed on one side of the heat exchange element, and a sterilization means is formed on one side of the high-performance dust collection filter, so as to be configured to operate in a cleaning mode in which indoor air is discharged to the outside.

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