Heat Recovery Ventilation System with Automatic Filter Cleaning and Sterilization

Abstract

The present invention relates to a heat recovery type ventilation device capable of automatic filter cleaning, comprising a case and a case having a heat exchange element inside the case, the case being divided into an outdoor air inlet space having an outdoor air inlet by a partition, an indoor air inlet space having an indoor air inlet, an indoor air outlet space having an indoor air outlet, and an outdoor air outlet space having an outdoor air outlet; wherein an automatic dust cleaning type filter means is installed in each of the outdoor air inlet and the indoor air inlet, and a blower fan is installed in each of the indoor air outlet space and the outdoor air outlet space; wherein the dust discharge pipe of each automatic dust cleaning type filter means is connected to the indoor air outlet space, and an opening equipped with a damper is formed in the partition between the indoor air inlet space and the outdoor air outlet space so as to be openable and closable. The effect of the present invention is that heat recovery is possible by providing a heat exchange element, and there is a filter for filtering dust in the outdoor air entering the indoor space and a filter for filtering dust in the indoor air discharged from the indoor space to the outdoor space. It is a very useful invention that enables automatic cleaning and sterilization of the filter, while making this possible by utilizing only two blower fans and two automatic dust cleaning type filter means.

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 entering indoors and a filter for filtering dust in indoor air discharged from indoors to the outside. 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 inlet space for outdoor air to enter, an outdoor air outlet space for discharging indoor air to the outside, an indoor air outlet space for discharging outdoor air to the inside, and an indoor air inlet space for introducing 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 regulate 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 introduced, and on the other side of the heat exchanger, namely the side where indoor air is introduced, in order 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, a dust-automatic 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 entering from the outside into the indoors, and conversely, to filter dust from the air being discharged from the indoors 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 and sterilization of a filter for filtering dust in outdoor air entering indoors and a filter for filtering dust in indoor air discharged from indoors to outdoors, 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 and an outdoor air inlet space having an outdoor air inlet by means of a partition, an indoor air inlet space having an indoor air inlet, an indoor air outlet space having an indoor air outlet, and an outdoor air outlet space having an outdoor air outlet, wherein an automatic dust cleaning type filter means is installed in each of the outdoor air inlet and the indoor air inlet, and a blower fan is installed in each of the indoor air outlet space and the outdoor air outlet space, and the dust discharge pipe of each of the automatic dust cleaning type filter means is connected to the indoor air outlet space, and an opening having a damper is formed in the partition between the indoor air inlet space and the outdoor air outlet space, and a blocking plate is formed between the heat exchanger and the indoor air inlet in the indoor air inlet space, and an opening having a damper is also formed in the blocking plate so as to be openable and closable.

[0016] In another embodiment of the present invention, a high-performance dust collection filter for removing fine dust is installed in an opening equipped with a damper in the partition between the indoor air inlet space and the outdoor air outlet space, and a filter sterilization means for sterilizing the high-performance dust collection filter is installed on one side of the high-performance dust collection filter at a predetermined distance. Effects of the invention

[0018] 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 and sterilization of a filter for filtering dust in outdoor air entering indoors and a filter for filtering dust in indoor air discharged from indoors to outdoors, while utilizing only two blower fans and two automatic dust cleaning type filter means. Brief explanation of the drawing

[0020] FIG. 1 is a schematic plan view of the heat recovery type ventilation device of the present invention. FIG. 2 is a perspective view showing only the automatic dust cleaning type filter means in the present invention. FIG. 3 is a reference diagram for showing the airflow path in the automatic cleaning operation mode of the external air filter and exhaust filter in the present invention. FIG. 4 is a reference diagram for showing the airflow path in the heat recovery ventilation operation mode in the present invention. FIG. 5 is a planar structural diagram illustrating another embodiment of the heat recovery type ventilation device of the present invention. FIG. 6 is a reference diagram for showing the airflow path in the high-performance dust collection filter sterilization operation mode in the present invention. FIG. 7 is a reference diagram for showing the airflow path in the internal circulation clean operation mode in the present invention. Specific details for implementing the invention

[0021] 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.

[0022] 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.

[0023] 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.

[0024] FIG. 1 is a schematic plan view of the heat recovery type ventilation device of the present invention; FIG. 2 is a perspective view showing only the automatic dust cleaning type filter means of the present invention; FIG. 3 is a reference diagram showing the airflow path in the automatic cleaning operation mode of the outdoor air filter and the exhaust filter of the present invention; FIG. 4 is a reference diagram showing the airflow path in the heat recovery ventilation operation mode of the present invention; FIG. 5 is a plan view showing another embodiment of the heat recovery type ventilation device of the present invention; FIG. 6 is a reference diagram showing the airflow path in the high-performance dust collection filter sterilization operation mode of the present invention; and FIG. 7 is a reference diagram showing the airflow path in the internal circulation cleaning operation mode of the present invention.

[0025] 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.

[0026] The present invention comprises a case (110), an outdoor air inlet space (111) having an outdoor air inlet (1500) formed by each partition (1130) and equipped with a heat exchange element (120) inside the case (110), an indoor air inlet space (112) having an indoor air inlet (1400), an indoor air outlet space (113) having an indoor air outlet (1600), and an outdoor air outlet space (114) having an outdoor air outlet (1700). A dust automatic cleaning type filter means (1200) is installed in each of the outdoor air inlet (1500) and the indoor air inlet (1400), and a blower fan (113a, 114a) is installed in each of the indoor air outlet space (113) and the outdoor air outlet space (114). The dust discharge port (1200d) of the filter means (1200) is connected to the indoor air discharge space (113) by the dust discharge pipe (1220), and an opening (1100) equipped with a damper (1111) is formed in the partition between the indoor air inlet space (112) and the outdoor air discharge space (114), and a blocking plate (1300) is formed between the heat exchange element (120) and the indoor air inlet (1400) in the indoor air inlet space (112), and an opening (1310) equipped with a damper (1311) is formed in the blocking plate (1300).

[0027] 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. 2 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.

[0028] 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 indoor air discharge space (113) when the blower fan (113a) is driven.

[0029] 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 inlet (1500) and the automatic dust cleaning type filter means (1200) installed in the indoor air inlet (1400), depending on the direction of airflow.

[0030] Therefore, since it is absolutely necessary to control the direction of airflow for this purpose, it is natural that the opening and closing of each damper (1111, 1311, 1410, 1510, 1610, 1710) by the control unit is required. The above dampers are configured to open and close by driving a motor (not shown).

[0031] In the present invention with such a structure, when the blower fan (113a, 114a) operates, a reverse airflow is applied to the filter (1200c) of the automatic dust cleaning type filter means (1200), and the dust passes through the dust discharge pipe (1220) and is then discharged to the indoor air outlet (1600) through the indoor air discharge space (113).

[0032] 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, and the control unit is composed of a PC or a microprocessor, etc., and all electrical driving means, namely the dust automatic cleaning type filter means (1200), blower fan (113a, 114a), and damper (1111, 1311, 1410, 1510, 1610, 1710), are automatically controlled according to each set operating mode by a pre-installed program.

[0033] At this time, as illustrated in FIGS. 3 to 4 and FIG. 6, each operating mode can be a cleaning mode of the filter (1200c) of each automatic dust cleaning type filter means (1200), as well as a heat recovery ventilation operating mode, a high-performance dust collection filter sterilization operating mode, an internal circulation cleaning operating mode, etc. To this end, 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 enabling the ventilation device (100) of the present invention to provide the mode requested by the user.

[0034] In addition, the present invention preferably installs a high-performance dust collection filter (1120) for removing fine dust in the opening (1100), and a filter sterilization means (1130) spaced apart at a predetermined distance from one side of the high-performance dust collection filter (1120) may be installed to sterilize the high-performance dust collection filter (1120). In this case, the filter sterilization means (1130) may use an ultraviolet (UV) irradiation device, a high-temperature heating device, an ozone and plasma generator, a silver nano coating, a chemical coating, etc.

[0035] The filter sterilization means (1130) 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 a high-performance dust collection filter, but is not used in a mode where air enters directly into the indoor space, thus preventing the supply of sterilized air that is harmful to the human body into the indoor space, thereby helping to maintain the user's health.

[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 heat recovery type ventilation device comprising a case, an outdoor air inlet space having an outdoor air inlet by means of a partition and having a heat exchange element inside the case, an indoor air inlet space having an indoor air inlet, an indoor air outlet space having an indoor air outlet, and an outdoor air outlet space having an outdoor air outlet, wherein an automatic dust cleaning type filter means is installed in each of the outdoor air inlet and the indoor air inlet, and a blower fan is installed in each of the indoor air outlet space and the outdoor air outlet space, and the dust discharge pipe of each of the automatic dust cleaning type filter means is connected to the indoor air outlet space, and an opening having a damper is formed in the partition between the indoor air inlet space and the outdoor air outlet space, wherein a blocking plate is formed between the heat exchange element and the indoor air inlet in the indoor air inlet space, and an opening having a damper is also formed in the blocking plate, wherein in the opening having a damper in the partition between the indoor air inlet space and the outdoor air outlet space A heat recovery type ventilation device capable of automatic filter cleaning, characterized by installing a high-performance dust collection filter for removing fine dust, and installing a filter sterilization means for sterilizing the high-performance dust collection filter on one side of the high-performance dust collection filter at a predetermined distance apart. Claim 2 delete

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