KR102209816B1 - Heat recovery ventilation system that can easily change the suction and discharge direction of the inside and outside air - Google Patents

Abstract

The present invention relates to a heat recovery ventilation apparatus with ease of change in intake and discharge directions of indoor and outdoor air. According to the present invention, the heat recovery ventilation apparatus comprises: a ventilation casing divided into an air supply space, a ventilation space, an exhaust space, and an outdoor air space; a heat exchange element installed in the center of the ventilation casing; an air supply blower; and an exhaust blower. According to the present invention, the efficiency of supplying indoor air can be improved.

Description

Heat recovery ventilation system that can easily change the suction and discharge direction of the inside and outside air

The present invention relates to a heat recovery ventilator capable of recovering and ventilating internal and external air, and to a heat recovery ventilating device that can easily change the suction and discharge directions of internal and external air to a desired direction.

In general, a ventilation system for performing ventilation is installed in buildings of a certain size or larger.

Ventilation system introduces outside air into the room and ventilates it to exchange inside air and outside air forcibly by a blower fan so that the inside air is discharged to the outside.As outside air with a large temperature difference is introduced into the room during cooling and heating, the cooling and heating energy efficiency decreases. Therefore, a heat exchange element is installed inside to prevent the cooling and heating energy efficiency from decreasing by exchanging internal and outdoor air.

On the other hand, the ventilation system equipped with a heat exchange element can prevent a decrease in cooling and heating energy efficiency by exchanging internal and outdoor air with each other.However, when the temperature difference between indoors and outdoors does not occur significantly, such as during the season, the outside air is introduced directly into the room. There is a problem that there is a problem in that there is a problem in that energy is wasted by performing cooling and heating as the internal and external air are introduced by heat exchange in the heat exchange element.

In order to solve this problem, there is a bar disclosed in Korean Patent Application Publication No. 10-2018-0029305 (published on March 21, 2018) "combined heat exchange ventilator".

The conventional composite heat exchange ventilator has an external air intake port and an internal air discharge port on the outdoor side, an internal air intake port and an external air supply port on the indoor side, and an outside air intake space communicating with the outside air intake port, the inside air. A case comprising an internal air discharge space in communication with the discharge port, an internal air suction space in communication with the internal air intake port, and an external air supply space in communication with the external air supply port therein; A heat exchanger provided in the case; A suction blower that sucks outdoor air into the case and supplies it to the indoor side, and a discharge blower that sucks indoor air into the case and discharges it to the outside; A bypass cover configured under the heat exchanger in the case and constituting a bypass flow path through which the internal air intake port and the internal air discharge port communicate without passing through the heat exchanger; Bypass means for selectively communicating the internal air intake port and the bypass flow path; And an intermediate damper provided between the external air intake space and the internal air discharge space in the case to selectively communicate the external air intake space and the internal air discharge space.

The conventional composite heat exchange ventilator of this configuration selectively controls the movement of the inside air so that it does not heat exchange the inside air by the bypass flow channel, so that the outside air that is not heat-exchanged with the inside air is introduced as it is during the inter-season period, thereby obtaining a cooling and heating effect by the outside air. Could improve.

In addition, the conventional composite heat exchange ventilator was able to reduce indoor pollution by recirculating the inside air by an intermediate damper, blocking introduction of outside air when the outside air is contaminated, and cleaning the inside air.

However, in the conventional composite heat exchange ventilator, since the suction blower is connected to the outside air supply port and the discharge blower is coupled to the inside air discharge port, the space occupied by the suction fan and the discharge fan is to change the positions of the outside air supply port and the internal air discharge port. There was a problem in that the case had to be remade because it had to be considered.

In addition, even if the composite heat exchange ventilator is installed on the ceiling of the room, it is difficult to form an outside air supply port on the upper or lower surface of the case, and thus, there is a problem in that the duct must be connected.

In addition, when the bet is circulated by the intermediate damper, there is a problem that the supply efficiency of the bet decreases as resistance increases due to a long movement distance of the bet because it must pass through both the bypass flow path, the outside air supply space, and the bet discharge space.

In addition, since the bypass means selectively opens and closes the air intake port and the bypass flow path, there is a problem that foreign substances penetrate into the bypass means when stopping, and the trouble of removing the lid during inspection because it does not have a separate inspection port is a problem. There was this.

In addition, since the intermediate damper is installed in a straight line with respect to the case, there is a problem that the size of the case is increased.

The present invention has been conceived to solve the above problems, and the problem to be solved by the present invention is to form an air supply and discharge space by means of an air supply partition plate, and the exhaust space to form an exhaust discharge space by an exhaust partition plate. Thus, by forming the air supply and exhaust ports in the air supply and exhaust space, the air supply and exhaust ports can be formed in various directions, and when installed on the ceiling, the air supply and the air supply can be formed on the bottom or upper surface of the ventilation casing. Therefore, it is possible to perform ventilation by circulating internal and external air directly without connecting the duct directly to the supply and exhaust ports, and by forming an internal air circulation port in the bypass flow path, the internal air passing through the bypass flow path is transferred to the outside air space. Since it is introduced immediately and supplied to the room after air purification by the air filter, the supply efficiency of the bet can be improved by shortening the movement path of the bet, and the return port, the bypass channel and the bet bypass damper are used in various forms. An object of the present invention is to provide a heat recovery ventilator that can circulate air and can easily change the direction of intake and discharge of inside and outside air, which can prevent the penetration of foreign substances when the operation is stopped by an inside air bypass damper.

The heat recovery ventilation device in which the intake and discharge directions of internal and external air can be easily changed according to an embodiment of the present invention to achieve the above-described problem is an air supply space in communication with a supply port through which outside air is discharged, and internal air is introduced into the interior. Ventilation space through which ventilation ports are communicated, exhaust spaces in communication with exhaust ports through which internal air is discharged, ventilation casings divided into external air spaces in communication with external air through which outside air is introduced, the air supply space, ventilation space, exhaust space and outside air A heat exchange element that is installed in the center of the ventilation casing to partition the space and exchanges heat by crossing the outside air introduced into the air outlet and the inside air introduced into the ventilation opening, and is installed in the air supply space to force internal and outdoor air from the ventilation casing. A supply air blower that circulates to the room and supplies it to the room; an exhaust blower installed in the exhaust space to forcibly circulate internal and outdoor air from the ventilation casing to discharge it to the outside, and the air supply space allows the air supply port from the ventilation casing to various directions. In the supply air supply space to form a supply air discharge space that is located at a portion where the corner of the ventilation casing is located and communicates with the air supply port, the heat exchange element is located to supply the outside air passing through the heat exchange element to the supply air discharge space. A supply air inlet space in which the air supply blower is installed, and an air supply partition plate for dividing the air supply space into the air supply discharge space and the air supply inlet space, and the exhaust space includes the exhaust port in various directions in the ventilation casing. The exhaust space is located at a portion where the corner of the ventilation casing is located in the exhaust space so as to be formed and communicates with the exhaust port, and is located at a portion where the heat exchange element is located so as to exhaust the inside of the heat exchange element to the exhaust discharge space. And an exhaust introduction space in which the exhaust blower is installed, and an exhaust partition plate partitioning the exhaust space into the exhaust discharge space and the exhaust introduction space.

Includes a bypass flow passage connecting the ventilation space and the exhaust introduction space so that the internal air of the heat exchange element is formed at an upper or lower portion of the heat exchange element and the internal air introduced into the ventilation port is discharged to the exhaust port without passing through the heat exchange element. can do.

The internal air introduced into the bypass flow passage is formed in the bypass flow passage to send the internal air introduced into the outside air space to be introduced back into the interior through the air filter, and is installed in the internal air circulation port communicating with the outdoor air space, and the internal air circulation port. It may include an internal air circulation damper for opening and closing the internal air circulation port.

And a return port communicating the exhaust discharge space and the outside air space to return a part of the internal air exhausted to the exhaust discharge space to the outside air space, and an inside return damper installed at the return port to open and close the return port. It may include characterized in that.

When the ventilation casing is installed on the ceiling of the room, the air supply port and the ventilation port may be formed on a surface facing the floor of the room in the ventilation casing so as to directly supply outside air or suck inside air without connecting a duct. have.

The ventilation casing is formed in the ventilation casing to replace the heat exchange element or filter, or to open the ventilation casing to check, and an inspection door installed at the inspection port to open and close the inspection port, and installed in the inspection door It may include an inspection cover to close the ceiling.

The bypass damper rotates between a first communication port communicating with the heat exchange element side, a second communication port communicating with the bypass passage part side, and the first communication port while being rotated between the first communication port and the second communication port. , Or a selection door that selects and seals the second communication port, and the selection door seals the first communication port so that the first communication port and the second communication port can be sealed together when the introduction of bet is blocked. And a second door part sealing the first door part and the second communication port, and the first door part and the second door part have an angle corresponding to an angle formed by the first communication port and the second communication port. I can.

According to the present invention, the air supply space is divided into a supply air inlet space and an air supply discharge space by a supply device partition plate, and the exhaust space is divided into an exhaust inlet space and an exhaust discharge space by an exhaust partition plate, so that the positions of the supply ports and the exhaust ports can be varied. The direction can be easily changed, and when a heat recovery ventilator is installed on the indoor ceiling by forming the air supply and ventilation ports on the top or bottom of the ventilation casing, the inside and outside air can be directly inside the room even if the duct is not connected to the air supply and ventilation. It can be ventilated by suction or discharge.

In addition, an internal air circulation port that can introduce bet into the outside air space is formed in the bypass flow path, and in the air cleaning mode, the internal air is moved to the outside air space through the internal air circulation port and is supplied to the room through the air filter. By shortening the route, the supply efficiency of bet can be improved.

In addition, the internal air circulation damper and the internal air return damper are separately installed, so that the air cleaning mode and the internal air return mode can be individually performed.

In addition, the bet return damper is installed inclined in the ventilation casing, so that not only can the size of the ventilation casing be minimized, but also the inspection door is installed to be opened and closed by the latch member and the clasp at the inspection hole, so that inspection can be performed easily. , Mode conversion controller is installed on the controller cover, so it is easy to check and repair the mode conversion controller.

In addition, the bypass damper selects the bypass mode and the heat transfer mode and operates. At the same time, when the operation is stopped, the selector door of the bypass damper seals both the first communication port and the second communication port to prevent foreign matter from entering the ventilation casing. It can block the inflow.

1 is a perspective view showing a state in which an upper casing of a ventilation casing is separated, constituting a heat recovery ventilator in which intake and discharge directions of internal and external air can be easily changed according to an embodiment of the present invention.
FIG. 2 is a bottom view showing a heat recovery ventilator in which the intake and discharge directions of internal and external air can be easily changed according to an embodiment of the present invention, and shows a state in which the operation is stopped.
FIG. 3 is a bottom view showing a heat recovery ventilator for easy change in intake and discharge directions of internal and external air according to another embodiment of the present invention.
FIG. 4 is a perspective view of a heat recovery ventilator in which the intake and discharge directions of internal and external air can be easily changed according to another embodiment of the present invention as viewed from the bottom, and shows a state in which the finishing cover and the inspection door are separated.
5 is a schematic side cross-sectional view of a heat recovery ventilator for easy change in intake and discharge directions of internal and external air according to another embodiment of the present invention, installed on a ceiling of an indoor space.
6 is a bottom view of a heat recovery ventilator in which intake and discharge directions of internal and external air can be easily changed according to an embodiment of the present invention, showing an operating state of the heat transfer mode.
7 is a bottom view of a heat recovery ventilator in which intake and discharge directions of internal and external air can be easily changed according to an exemplary embodiment of the present invention, showing an operating state of the bypass mode.
FIG. 8 is a bottom view of a heat recovery ventilator in which intake and discharge directions of internal and external air can be easily changed according to an embodiment of the present invention, showing an operating state of the internal air return mode.
9 is a bottom view of a heat recovery ventilator in which intake and discharge directions of internal and external air can be easily changed according to an embodiment of the present invention, showing an operating state of the air cleaning mode.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in FIGS. 1 to 2, the heat recovery ventilation apparatus 100 in which the intake and discharge directions of internal and external air can be easily changed according to an embodiment of the present invention may include a ventilation casing 110.

The ventilation casing 110 may have a rectangular box shape with an empty inside, and the ventilation casing 110 includes a ventilation opening 114 through which bet (indoor air) is introduced into the ventilation casing 110, and a ventilation opening 114 The exhaust port 112 for discharging the internal air introduced into the outside, the external air (113) through which outside air (external air) is introduced into the interior of the ventilation casing 110, and the outside air introduced through the external air (113) into the interior A supply port 111 to supply may be formed.

The supply port 111, the exhaust port 112, the outside port 113, and the ventilation port 114 formed in the ventilation casing 110 are ventilation casings so that the inside and outside air cross at the central part of the ventilation casing 110. It may be formed on the circumferential side of the (110), or may be formed on the upper or lower surface of the ventilation casing (110).

In addition, the internal space of the ventilation casing 110 may be installed in the center of the heat exchange element 140, which will be described below, and the ventilation space 114a communicated with the ventilation opening 114 by the heat exchange element 140, an external device It may be divided into an external air space 113a communicating with the 113, an exhaust space 112a communicating with the exhaust port 112, and an air supply space 111a communicating with the air supply port 111.

Of course, a partition wall for partitioning the spaces may be further formed between the ventilation casing 110 and the heat exchange element 140.

The ventilation casing 110 may be formed by overlapping the lower casing and the upper casing in a vertically divided form, and the ventilation casing 110 may be injection-molded by synthetic resin or manufactured by sheet metal.

The ventilation casing 110 may be provided with an inspection hole 115 capable of inspecting the interior of the ventilation casing 110, and the inspection hole 115 is a ventilation opening 114 of the ventilation casing 110, an external device 113, When the air supply port 111 and the exhaust port 112 are formed as a circumferential surface of the ventilation casing 110, it may be formed on the upper or lower surface of the ventilation casing 110.

The inspection hole 115 opens the inside of the ventilation casing 110 so that all components installed therein can be checked, and the size of the heat exchange element 140 and the air filter 145 to be described below can be replaced. Can be formed as

An inspection door 120 for opening and closing the inspection hole 115 may be installed in the inspection hole 115, and when the inspection door 120 is pressed toward the inspection hole 115 by a structure such as a known push button A detachable means 125 may be installed that is fixed and is released when pressing again.

A plurality of detachable means 125 may be installed between the inspection door 120 and the inspection hole 115.

Here, since the configuration of the detachable means 125 having the structure of a push button is a known configuration, a detailed description will be omitted.

In the inspection door 120, the air filter 145 is detached so that only the air filter 145 can be replaced even if the inspection hole 115 is not opened through the inspection door 120 at a portion corresponding to the air filter 145. The filter hole may be formed through, and a filter cover 123 for opening and closing the filter hole may be detachably installed in the filter hole.

For example, when the heat recovery ventilation device 100 is installed on the ceiling, the inspection port 120 is installed on the bottom facing the floor from the ventilation casing 110 to open and close the inspection door 120 from the bottom of the heat recovery ventilation device 110 can do.

The filter cover 123 is also detachably coupled from the inspection door 120 by a detachment means 125 so that the air filter 145 can be replaced by removing the filter cover 123 without opening the inspection door 120. have.

The ventilation casing 110 may be provided with a controller insertion unit 117 in which the mode switching controller 135 is installed, and the controller insertion unit 117 is ventilated so that the mode switching controller 135 can be easily inserted from the outside. The casing 110 may be cut to have an open shape.

On the other hand, the controller insertion portion 117 may be installed a controller cover 130 for opening and closing the open controller insertion portion 117, the mode switching controller 135 is installed in the controller cover 130, the controller cover 130 When the controller insertion part 117 is sealed through), the mode switching controller 135 is carried into the inside of the controller insertion part 117, and when the controller cover 130 is removed from the controller insertion part 117, the mode is switched. The controller 135 may be carried out from the controller insertion unit 117.

As shown in Figures 2 to 4, the heat recovery ventilator 100, which is easy to change the suction and discharge directions of internal and external air according to an embodiment of the present invention, the heat recovery ventilator 100 includes a heat exchange element 140. Can include.

The heat exchange element 140 may prevent a decrease in cooling/heating energy efficiency by exchanging the heat of the inside air and the heat of the outside air to match the inside and outside air at a temperature similar to each other.

The heat exchange element 140 may be installed in the center of the ventilation casing 110, and the heat exchange element 140 may be formed in a form in which a plurality of corrugated heat exchange sheets are stacked in a rectangular block shape.

The heat exchange element 140 may be installed in a rhombus shape with respect to the ventilation casing 110 so that each circumferential surface faces the supply port 111, the exhaust port 112, the external port 113, and the ventilation port 114. The internal space of the ventilation casing 110 may be divided into an air supply space 111a, an exhaust space 112a, an external air space 113a, and a ventilation space 114a by the element 140.

The heat exchange element 140 may be a total heat exchange element that exchanges both heat and moisture or a sensible heat exchange element that only exchanges heat, and the heat exchange element 140 may have a flow path that intersects each other without contacting internal and external air. .

In addition, the heat exchange element 140 may be installed to be replaceable through the inspection hole 115 inside the ventilation casing 110.

As shown in Figs. 2 to 4, the heat recovery ventilator 100 in which the intake and discharge directions of internal and external air can be easily changed according to an embodiment of the present invention includes a supply air blower 181 and an exhaust blower 183. can do.

The air supply fan 181 is installed in the air supply space 111b, which will be described below, among the air supply space 111a, sucks air in the air supply space 111b, and discharges it to the air supply discharge space 111c. By introducing outside air into the interior of the ventilation casing 110 through 113), it is possible to supply air into the room through the supply port 111.

The exhaust blower 183 is installed in the exhaust inlet space 112b, which will be described below, among the exhaust space 112a, sucks air from the exhaust inlet space 112b and discharges it to the exhaust outlet space 112c. Introducing the bet into the interior of the ventilation casing 110 through ), it can be exhausted to the outside through the exhaust port 112.

At this time, the air supply blower 181 does not supply only the outside air introduced into the outside air outlet 113 into the room, but the inside air introduced into the ventilation casing 110 through the ventilation opening 114 according to the operation mode. It may be supplied to the room through 111, and the exhaust blower 183 does not discharge all the bet discharged through the ventilation opening 114 to the ventilation opening 114, but the inside of the ventilation casing 110 It can also be cycled back in.

The supply air blower 181 and the exhaust blower 183 may be implemented in the form of rotating a fan by an electric motor, and the fan is installed inside the blowing housing having an inlet and an outlet, and according to the rotation of the fan by the electric motor. The air sucked through the inlet can be discharged through the outlet.

At this time, the inlet of the air supply fan 181 introduces outside air or internal air into the ventilation casing 110 in a form that sucks air from the air supply inlet space 111b, and the inlet of the exhaust fan 183 is an exhaust inlet space ( It is possible to introduce outside air or inside air into the ventilation casing 110 in the form of inhaling the air of 112b).

As shown in FIGS. 1 to 4, the heat recovery ventilator 100 in which the intake and discharge directions of internal and external air can be easily changed according to an embodiment of the present invention includes an air supply partition plate 111d and an exhaust partition plate 112d. It may include.

The supply air supply board 111d is a supply air discharge space 111c that communicates with a supply port for supplying the outside air sucked into the air supply space 111a into the air supply space 111b and the air supply space 111b into the interior. ) Can be divided.

The supply air discharge space 111c may be located at the corner of the ventilation casing 110 in which the air supply space 111a is located so as to communicate with the air supply 111 in the air supply space 111a, and the air supply inflow space 111b is It may be located on the side of the heat exchange element 140, which is a position opposite to the discharge space 111c.

A supply air blower 181 is installed in the supply air inlet space 111b to introduce the outside air that has passed through the heat exchange element 140 by the air supply air blower 181 to the supply air inlet space 111b and then discharge it to the air supply discharge space 111c. Outdoor air may be supplied to the interior through the air supply port 111 communicating with the air supply discharge space 111c in a form.

When the ventilation casing 110 is viewed from the top, the supply air discharge space 111c divides the corner formed by the circumference of both sides of the ventilation casing 110 in a diagonal shape parallel to the facing side of the heat exchange element 140 Therefore, not only can the supply port 111 be formed by selecting from both sides of the supply air discharge space 111c, but also the supply air supply 111 on the upper or lower surface corresponding to the supply air discharge space 111c in the ventilation casing 110 Since it can be formed, the supply port 111 can be formed in the ventilation casing 110 in various directions.

The exhaust partition plate 112d is an exhaust space communicating with an exhaust inlet space 112b through which the exhaust space 112a is introduced and an exhaust port 112 for discharging the inner air sucked into the exhaust inlet space 112b to the outside. It can be divided into (112c).

The exhaust discharge space 112c may be located at the corner of the ventilation casing 110 in which the exhaust space 112a is located so as to communicate with the exhaust port 112 in the exhaust inlet space 112b, and the exhaust inlet space 112b is exhausted. It may be located on the side of the heat exchange element 140 that is a position opposite to the discharge space (112c).

An exhaust blower 183 is installed in the exhaust inlet space 112b to introduce the bet that has passed through the heat exchange element 140 by the exhaust blower 183 to the exhaust inlet space 112b and then discharge it to the exhaust outlet space 112c. It can be discharged to the outdoors through the exhaust port 112 communicating with the exhaust discharge space (112c) in the form.

When looking at the ventilation casing 110 from the top, the exhaust discharge space 112c has a corner portion formed by gathering both sides of the circumference of the ventilation casing 110 in a diagonal shape parallel to the facing side of the heat exchange element 140. Since it is formed by partitioning, it is possible to select from both sides of the exhaust and discharge space 112c to form the supply port 112, and also to the upper or lower surface corresponding to the exhaust discharge space 112c in the ventilation casing 110 Since the exhaust port 112 can be formed, the exhaust port 112 can be formed in the ventilation casing 110 in various directions.

For example, as shown in FIG. 2, in the embodiment, the air supply 111 is formed in parallel on the side where the ventilation opening 114 is formed in the ventilation casing 110, and on the side opposite to the ventilation opening 114 The external device 113 may be positioned, and the exhaust port 112 may be formed side by side on the side where the external device 113 is formed.

As shown in FIG. 3, as in another embodiment, the ventilation opening 114 in the ventilation casing 110 is formed on a side different from the embodiment, and the external device 113 is parallel to the side on which the ventilation opening 114 is formed. ), and forming an exhaust port 112 on the side of the ventilation casing 110 facing the external port 113, and forming the air supply port 111 on the side where the exhaust port 112 is formed.

4 and 5, as in another embodiment, when the heat recovery ventilator 100 is installed on the indoor ceiling, the air supply 111 on the bottom facing the floor from the ventilation casing 110 ), and the ventilation port 114 may be formed on the same surface as the air supply port 111 so as to directly inhale or exhaust the bet from the room without the need to install a duct.

In this case, in another embodiment, the exhaust port 113 and the external device 113 may be formed at various positions on the circumferential surface of the ventilation casing 110.

Of course, the described embodiment is only an example, and it goes without saying that the air supply port, the exhaust port, the ventilation port, and the external port may be formed in the ventilation casing in various directions other than the embodiment.

As shown in Figure 4, in another embodiment may further include a finishing cover 121.

When the heat recovery ventilator 100 is installed on the ceiling, the finishing cover 121 may close the ceiling without the heat recovery ventilator 100 installed on the ceiling being visible from the outside.

The finishing cover 121 may cover a part of the ceiling finishing panel that is opened to install the heat recovery ventilation device 100, and the finishing cover 121 is a panel having a sense of unity with the ceiling to provide a sense of unity with the ceiling. It can also be implemented.

The finishing cover 121 is detachably coupled to the bottom surface of the ventilation casing 110 or the ceiling finishing panel to open the inspection door 120 of the heat recovery ventilation device 110, or the finishing cover 121 is a ventilation casing 110 ) Can be fixed.

Here, when the finishing cover 121 is fixedly installed on the ventilation casing 110 or the ceiling finishing panel, the inspection door 120 is opened so that the inspection door 120 can be opened without removing the finishing cover 121. ) And the cover door (121a) is installed in the corresponding part to open the finishing cover (121) through the cover door (121a), and when the finishing cover (121) is opened, the ventilation casing (110) through the inspection door (120) ) May be configured to open.

The closing cover 121 has a ventilation opening 141 and a supply opening 111 respectively corresponding to the ventilation opening 114 and the supply opening 111 formed on the bottom of the ventilation casing 110 to ventilate the air in the room. A diffuser hole 121b through which air moves may be formed through the portion.

As shown in FIG. 2, the heat recovery ventilator 100 in which the intake and discharge directions of internal and external air can be easily changed according to the embodiment of the present invention may include an air filter 145.

The air filter 145 may be installed on the surface of the heat exchange element 140 facing the outside air space 113a, and the air filter 145 collects outside air or foreign substances contained in the inside air flowing into the outside air space 113a. After filtering, it is provided to the heat exchange element 140, and internal or outdoor air that has passed through the heat exchange element 140 is introduced into the room by the air supply blower 181 to provide clean air that is not polluted into the room.

The air filter 145 may be installed in a form in which air filters 145 having different filtration properties are overlapped.

The air filter 145 may overlap one or more filters of a HEPA filter, a pre-treatment filter, a post-treatment filter, an odor removal filter, and an antibacterial filter.

In addition, the air filter 145 is installed not only on the surface of the heat exchange element 140 facing the outside air space 113a, but also on the surface of the heat exchange element 140 facing the ventilation space 114a, and through the ventilation opening 114 It is possible to prevent the heat exchange element 140 from being contaminated by foreign substances contained in the incoming bet.

On the other hand, the air filter 145 is attached to the heat exchange element 140 so that when the heat exchange element 140 is replaced, the air filter 145 is exchanged together, or the air filter 145 can be replaced separately from the heat exchange element 140. It can be installed in the ventilation casing 110 so that.

As shown in FIGS. 1 and 2, the heat recovery ventilation apparatus 100 for which the intake and discharge directions of internal and external air can be easily changed according to an embodiment of the present invention includes a bypass flow passage 160 Can include.

In the bypass flow path unit 160, the bet flowing into the ventilation space 114a through the ventilation port 114 does not pass through the heat exchange element 140, but moves to the exhaust space 112a and discharges the bet through the exhaust port 112. can do.

Here, the heat exchange element 140 exchanges heat with each other while the internal and external air cross each other, and because neither of the internal and external air passes through the heat exchange element 140, heat exchange does not occur. In the case of heat exchange, since cooling or heating is rather required, the bypass flow path unit 160 may be exhausted to the exhaust port 112 by bypassing the inside air so that internal air and outside air do not heat exchange.

The bypass flow path unit 160 is formed in the form of a tunnel that partially partitions the lower or upper portion of the heat exchange element 140 through which the bet and the air do not pass so as to connect the ventilation space 114a and the exhaust discharge space of the exhaust space 112a. Can be.

The bypass flow path unit 160 may include an internal air circulation port 161.

The inner air circulation port 161 is formed in the bypass passage unit 160 to communicate with the outside air space 113a in the bypass passage unit 160 so that the bet passing through the bypass passage unit 160 can be introduced into the interior. I can.

The internal air circulation port 161 sends the internal air flowing into the bypass flow passage 160 through the ventilation space 114a to the external air space 113a and passes through the air filter 145 in the external air space 113a, and a heat exchange element ( 140), the air that has moved to the air supply space 111a, and the air that has moved to the air supply space 111a is supplied back to the room through the air supply port 111, so that the internal air is filtered from foreign substances by the air filter 145. Can be supplied indoors again.

Meanwhile, the bypass flow path unit 160 may be formed in a portion positioned in the opposite direction to the inspection hole of the ventilation casing 110 with the heat exchange element 140 as the center.

For example, when the bypass flow path unit 160 is formed above the heat exchange element, the inspection hole may be formed in a portion of the ventilation casing positioned below the heat exchange element.

As shown in FIGS. 1 and 9, the heat recovery ventilation apparatus 100 in which the intake and discharge directions of internal and external air can be easily changed according to an embodiment of the present invention may include an internal air circulation damper 165.

The bet circulation damper 165 may send or block the bet discharged through the bet circulation port 161 of the bypass flow path unit 160 to the ventilation space 114a.

In the internal air circulation damper 165, a space communicating with the internal air circulation port 161 is formed under the external air space 113 in a state where the external air space 113a is divided up and down by a partition plate, and the internal air circulation damper 165 is formed on the partition plate. ) Is installed to open and close the internal air circulation opening 161 to the external air space 113a according to the opening of the internal air circulation damper 165, which is introduced into the lower air space 113a through the internal air circulation opening 161. have.

For example, when the internal air circulation damper 165 is opened, internal air supplied through the internal air circulation port moves to the upper portion of the external air space 113a, and the internal air that has moved to the external air space 113a is an air filter 145 and a heat exchange element ( The bet moved to the air supply space 111a through 140 and moved to the air supply space 111a may be introduced into the room through the air supply hole 111.

On the other hand, when the internal air circulation damper 165 is sealed, the internal air introduced into the ventilation space 114a does not directly enter the external air space 113a, moves to the exhaust space 112a, and moves to the exhaust space 112a. The bet may be discharged to the outside through the exhaust port 112.

The internal air circulation damper 165 may be in the form of a butterfly door having a hinge shaft in the center to minimize the opening and closing space, and the internal air circulation damper 165 is a motor damper that opens and closes the internal air circulation port 161 by the operation of the motor. Can be

As shown in FIGS. 2 and 8, the heat recovery ventilator 100 in which the intake and discharge directions of internal and external air can be easily changed according to an embodiment of the present invention may include an internal air return damper 170.

The internal air return damper 170 may move the internal air introduced into the exhaust space 112a to the external air space 113a, mix internal air with the external air, and introduce the internal air through the heat exchange element 140 into the interior.

The internal return damper 170 is installed at the return port 173 communicating the exhaust space 112a and the outside air space 113a to open and close the return port 173 to open the return port 173, the exhaust space 112a When the inner air of) is introduced into the outside air space 113a and the return port 173 is closed, the inside air of the exhaust space 112a can be blocked from being introduced into the outside air space 113a.

At this time, the exhaust space 112a is partially partitioned from the exhaust port 112 by the exhaust partition wall 171 so that the bet exhausted by the exhaust blower 183 passes between the exhaust partition wall 171 and the exhaust port 112 A return port 173 is formed to move to the outside air space 113a, and an internal return damper 170 may be installed in the return port 173.

The exhaust partition wall 171 may be connected to an exhaust partition plate 112d that divides the exhaust space 112a to extend the exhaust discharge space 112b in a direction in which the outside air space 113a is located.

On the other hand, the return port 173 forms the end of the exhaust partition wall 171 to be inclined, and by forming the return port 173 at the inclined portion to minimize the space occupied by the return damper 170, the return damper 170 ), it is possible to prevent the size of the ventilation casing 110 from being enlarged.

The bet return damper 170 may be a motor damper that opens and closes a door by a motor, and the bet return damper 170 is implemented in the form of a butterfly-type door having a hinge axis at the center, thereby minimizing the installation space.

The internal air introduced into the ventilation port 114 by the return port 173 may be supplied back to the room through the air filter 145, but when the return port 173 is used, the internal air circulation formed in the bypass passage part 160 Since the movement path of the bet is longer than that of circulating the bet through the sphere 161, the supply efficiency of the bet supplied to the room may decrease, so if the bet is circulated after being cleaned, it is circulated through the bet circulation port 161 It is desirable to make it.

As shown in FIGS. 4 to 7, the heat recovery ventilator 100 in which the intake and discharge directions of internal and external air can be easily changed according to an embodiment of the present invention includes an exhaust damper 185 and an external air damper 187 can do.

The exhaust damper 185 is installed in the exhaust port 112 to open and close the exhaust port 112 or adjust the opening of the exhaust port 112, and the outdoor air damper 187 is installed in the outdoor port 113 to be ) Can be opened or closed, or the opening degree of the external device 113 can be adjusted.

The exhaust damper 185 and the outside air damper 187 may be motor dampers in which a door is operated by a motor.

As shown in FIGS. 2 to 7, the heat recovery ventilation apparatus 100 in which the intake and discharge directions of internal and external air can be easily changed according to an embodiment of the present invention may include a bypass damper 150.

The bypass damper 150 is installed in the ventilation space 114a and the heat exchanger element 140 sends the bet introduced into the ventilation space 114a through the ventilation opening 114 to the side, You can choose to send it.

The bypass damper 150 may be installed at a corner portion of the ventilation space 114a to prevent the size of the ventilation casing 110 from becoming enlarged due to the installation of the bypass damper 150.

The bypass damper 150 may include a first communication port 155, a second communication port 156, and a selection door 157.

The first communication port 155 may supply the inner air introduced into the ventilation opening 114 to the heat exchange element 140 so that the inner air introduced into the ventilation space 114a may move toward the heat exchange element 140.

The bypass damper 150 is provided with a first partition wall 151 to confine the bet introduced into the ventilation space 114a through the ventilation opening 114, and the second partition wall 152 is in the first partition wall 151 This vertically erected ventilation space 114a partitioned by the first partition wall 151 is divided into a first space 153 and a second space 154, and the first space 153 defines the ventilation port 114 The first communication port 155 is formed in the first partition wall 151 in which the first space 153 is located, and the first communication port 155 is formed in the second partition wall 152 and the first space 153 and The second communication port 156 may be formed to communicate with the second space 154.

At this time, the first space 153 has a floor partitioned from the bypass flow path 160 so that bet does not flow into the lower portion where the bypass flow path 160 is located, and the bottom of the second space 154 is bypassed. It is installed to communicate with the flow path unit 160.

On the other hand, the selection door 157 is rotated by the bypass damper 150 to seal the first communication port 155 and the second communication port 156 together according to the rotation angle, or the first communication port 155 or Any one of the second communication ports 156 can be selected and opened and closed, and the selection door 157 includes a first door part 157a and a second communication port 156 that seal the first communication port 155. The sealing second door portion 157b may be formed to form an angle corresponding to an angle formed by the first and second partition walls 151 and 152.

The bypass damper 150 configured in this way is the first door part 157a of the selector door 157 to block foreign substances from flowing into the ventilation casing 110 through the ventilation opening 114 when the equipment is stopped. The first communication port 155 is sealed, and the second door part 157b is positioned in a state where the second communication port 156 is sealed (see FIG. 8).

In addition, in the heat transfer mode, the selection door 157 rotates to open the first communication port 155, but when the selection door 157 rotates, the first door part 157a seals the second communication port 156. And, the second door portion 157b, which was sealing the second communication port 156, overlaps with the first partition wall 151 located in the second space 154 to prevent the bet flowing through the ventilation port 114. It is supplied to the heat exchange element 140 side through the first communication port 155 of the one space 153 (see FIG. 6).

On the other hand, in the bypass mode, the selection door 157 rotates to open the second communication port 156, but when the selection door 157 rotates, the second door part 157b becomes the first communication port 155 Is sealed, and the first door part 157a is positioned by rotating toward the ventilation space 114a where the heat exchange element 140 is located, and the inside air introduced into the first space 153 through the ventilation opening 114 is a second space. It may be provided to the bypass flow path unit 160 positioned below through 154 (see FIG. 7 ).

Of course, the bypass damper 150 may be located by changing the first communication port 155 and the second communication port 156 to corresponding positions according to the formation position of the exhaust port 111 in the ventilation casing 110. .

The bypass damper 150 configured as described above seals the first communication port 155 and the second communication port 156 together when the equipment is stopped, so that foreign substances are transferred to the interior of the ventilation casing 110 through the ventilation port 114. Inflow can be blocked, and in the heat transfer mode, the first communication port 155 is opened and the second communication port 156 is closed to send the bet introduced through the ventilation port 114 to the heat exchange element 140. , In the bypass mode, the second communication port 156 is opened and the first communication port 155 is closed, so that the bet introduced through the ventilation port 114 may be selectively sent to the bypass channel unit 160.

As shown in FIG. 2, the heat recovery ventilator 100 in which the intake and discharge directions of internal and external air can be easily changed according to an embodiment of the present invention may include a mode switching controller 135.

The mode switching controller 135 may control the heat recovery ventilator 100 in a pre-stored mode.

For example, the mode switching controller 135 includes a heat transfer mode, a bypass mode, an internal air return mode, and an air cleaning mode, so that when a temperature difference between indoors and outdoors reaches a preset temperature difference, the heat exchange element 140 can heat exchange. The heat transfer mode is selected and operated, and when the temperature difference between indoors and outdoors is lower or higher than the indoor temperature within the range of the preset temperature difference, cooling and heating is required, but when the introduction of outside air can be sufficiently solved, the internal air heat exchange device ( 140), and if the temperature difference between indoors and outdoors exceeds a preset temperature difference, the internal air is mixed and circulated to prevent condensation and to secure the amount of indoor ventilation. When the mode is selected and the pollution of the outside air is higher than the preset pollution level due to yellow sand or fine dust, the air cleaning mode that circulates the inside air without introducing outside air can be selected and operated.

The operation relationship of each mode selected by the mode switching controller 135 will be described in more detail when explaining the actions and effects between the following configurations.

The mode switching controller 135 includes a supply air blower 181, an exhaust blower 183, an internal air return damper 170, an internal air circulation damper 165, a bypass damper 150, an exhaust damper 185, and Components that operate electronically or electrically, such as the outside air damper 187, can be controlled.

The mode switching controller 135 further includes a temperature sensor for measuring indoor and outdoor temperature and a pollution measuring sensor for measuring outdoor pollution so that basic information for driving by switching modes may be further included, or temperature information for each region and Pollution information can be provided through the Internet and operated by selecting a mode.

Hereinafter, the operation and effect between each component according to an embodiment of the present invention will be described together with a control method of the heat recovery ventilator 100 in which the intake and discharge directions of internal and external air can be easily changed according to an embodiment of the present invention.

The heat recovery ventilator 100, which is easy to change the suction and discharge directions of internal and external air according to an embodiment of the present invention, includes a ventilation opening 114, an air supply opening 111, and an external air supply 113 around the side of the ventilation casing 110. ), the exhaust port 112 is formed so that internal air and outside air can cross each other, and a heat exchange element 140 is installed in the center of the ventilation casing 110, and the internal space of the ventilation casing 110 is a heat exchange element 140 The ventilation space 114a in communication with the ventilation port 114, the air supply space 111a in communication with the air inlet 111, the outside air space 113a in communication with the external outlet 113, and the exhaust port 112 It is divided into an exhaust space 112a.

On the other hand, the air supply space 111a is a supply air supply space 111c located at the edge of the ventilation casing 110 and an air supply inflow space 111b located at the side of the heat exchange element 140 by the air supply partition plate 111d. The exhaust space 112a is divided into an exhaust space 112c located at the edge of the ventilation casing 110 by an exhaust partition plate 112d and an exhaust inflow space 112b located at the heat exchange element 140 side. It is divided into.

In addition, a bypass flow path part 160 connecting the ventilation space 114a and the exhaust inflow space 112b of the exhaust space 112a is formed in the upper or lower part of the heat exchange element 140, and the bypass flow path part 160 ) Is formed with an inner air circulation port 161 communicating with the outside air space (113a).

In the ventilation space 114a, a bypass damper 150 is installed to selectively send the bet introduced into the ventilation port 114 toward the heat exchange element 140 side or the bypass passage part 160 side, and the inner air circulation port 161 An internal air circulation damper 165 for opening and closing the internal air circulation port 161 communicating the bypass flow passage part 170 and the outside air space 113a is installed.

In addition, an internal return damper 170 for opening and closing the return port 173 is installed in the return port 173 communicating between the exhaust space 112a and the outside air space 113a, and a supply air blower ( 181 is installed, and an exhaust blower 183 is installed in the exhaust inlet space 112b.

On the other hand, the ventilation casing 110 is provided with an inspection hole 115 for replacing or inspecting the heat exchange element 140, the inspection opening 115 is opposite to the bypass flow channel 160 with the heat exchange element 140 as the center. It is formed on the upper or lower portion of the heat exchange element 140 located in the direction to be.

An inspection door 120 is installed in the inspection opening 115 to open and close the inspection opening 115, and a filter hole formed in a portion corresponding to the air filter 145 to replace only the air filter 145 in the inspection door 120 A filter cover 123 for opening and closing is installed.

In another embodiment, the finishing cover 121 may be installed on the inspection door 120, and the closing cover 121 includes a supply port 111 formed on a surface facing the floor of the room in the ventilation casing 110 and It may be formed through the ventilation hole 114 so that the internal air and the outside air flow through the ventilation.

On the other hand, the ventilation casing 110 is formed with a controller insertion portion 117 into which the mode switching controller 135 is inserted, and the mode switching controller 135 is installed on the controller cover 130 sealing the controller insertion portion 117 When the controller cover 130 seals the controller insertion unit 117, the mode switching controller 135 is configured to be inserted into the controller insertion unit 117.

The heat recovery ventilator 100, which can easily change the direction of intake and discharge of inside and outside air according to an embodiment of the present invention configured as described above, is provided by the mode switching controller 135 according to a mode previously stored according to a temperature difference between indoors and outdoors or pollution degree of outside air. Can be selected and operated by

The control method of the heat recovery ventilator 100 in which the intake and discharge directions of internal and outdoor air can be easily changed according to the embodiment of the present invention is a heat recovery ventilator 100 that is easy to change the intake and discharge directions of internal and outdoor air according to the embodiment. ), but it goes without saying that other embodiments and other embodiments can be controlled in the same manner.

The control method of the heat recovery ventilation apparatus 100 in which the intake and discharge directions of internal and external air can be easily changed according to an embodiment of the present invention may include a heat transfer mode.

The heat transfer mode may be selected by the mode switching controller 135 when the temperature difference between indoors and outdoors reaches a preset temperature difference.

As shown in FIG. 6, when the heat transfer mode is selected, the mode switching controller 135 operates the bypass damper 150 so that the bet introduced into the ventilation port 114 is supplied to the heat exchange element 140.

The bypass damper 150 opens the first communication port 155 through which the motor rotates the selection door 157 to communicate with the heat exchange element 140 side. When the selection door 157 opens the first communication port 155, the first door part 157a seals the second communication port 156, and the second door part 157b is the second space 154. It overlaps the first partition wall 151 positioned at.

And, the mode switching controller 135 seals the return port 173 by the return damper 170, and also seals the air circulation port 161 by the air circulation damper 165, and the exhaust damper 185 The outside air damper 187 is controlled to open the exhaust port 112 and the outside port 113, and the supply air blower 181 and the exhaust blower 183 are operated.

When the heat transfer mode is operated in this way, the bet is introduced into the ventilation space 114a through the ventilation opening 114 by the exhaust blower 183, and the bet flowing into the first space 153 of the bypass damper 150 is controlled. 1 Through the communication port 155, the heat exchange element 140 passes through the exhaust inlet space of the exhaust space 112a, moves to the exhaust discharge space, and is discharged to the outside through the exhaust port 112 formed in the exhaust discharge space.

At the same time, outside air is introduced into the outside air space 113a through the air outlet 113 by the air supply blower 181, and after filtering foreign substances from the outside air space 113a through the air filter 145, the heat exchange element 140 After exchanging heat with the inside through the air supply space, it is introduced into the supply air inlet space of the air supply space 111a, and the outside air introduced into the air supply space is discharged to the supply air discharge space, and is supplied indoors through a supply port communicating with the supply air discharge space. .

In this way, in the heat transfer mode, the internal and outdoor air passes through the heat exchange element, and the internal and outdoor air heat exchange in the heat exchange element to introduce temperature-compensated outdoor air into the room, thereby preventing a decrease in cooling and heating energy efficiency.

The control method of the heat recovery ventilator 100 in which the intake and discharge directions of internal and outdoor air can be easily changed according to an embodiment of the present invention may include a bypass mode.

In bypass mode, the temperature of the outside air is higher than the indoor temperature within a preset temperature difference, such as during the season, and requires heating only by the outside air temperature, or the temperature of the outside air is lower than indoors, so it is necessary to perform cooling with only the outside air temperature. When set to, it can be selected by the mode switching controller 135.

As shown in FIG. 7, when the bypass mode is selected, the mode switching controller 135 rotates the selection door 157 of the bypass damper 150 to open the second communication port 156, and the selection door When 157 rotates to open the second communication port 156, the second door part 157b seals the first communication port 155, and the first door part 157a is the heat exchange element 140 It is located protruding into the located ventilation space (114a).

And the mode switching controller 135 seals the internal air circulation port 161 by the internal air circulation damper 165, and seals the return port 173 by the internal air return damper 170, and the exhaust damper 185 and outside air The exhaust port 112 and the external port 113 are opened by the damper 187 to operate the air supply fan 181 and the exhaust fan 183.

In this way, when the bypass mode is operated, the bet is introduced into the ventilation space 114a through the ventilation opening 114 by the exhaust blower 183, and the bet flowing into the ventilation space 114a is controlled by the selection door 157. The bet moves from the first space 153 to the second space 154 through the second communication port 156, and moves to the second space 154, without passing through the heat exchange element 140, but the bypass passage unit 160 The bet moves to the exhaust inflow space of the exhaust space 112a through and moves to the exhaust inflow space and is discharged to the outdoors through the exhaust port 112 communicating with the exhaust space.

At the same time, outside air is introduced into the outside air space 113a through the air outlet 113 by the air supply blower 181, and after filtering foreign substances from the outside air space 113a through the air filter 145, the heat exchange element 140 The air flows into the air supply inflow space through the air supply inflow space, and the outside air that flows into the air supply air inflow space moves to the air supply air discharge space and is supplied indoors through a supply port communicating with the air supply air supply space.

In the bypass mode, the outside air passes through the heat exchange element, but the inside air does not pass through the heat exchange element through the bypass flow passage, so it is introduced into the room while maintaining the temperature without changing the temperature of the outside air. Energy can be saved by performing cooling and heating.

The control method of the heat recovery ventilation device in which the intake and discharge directions of internal and external air can be easily changed according to an embodiment of the present invention may include an internal air return mode.

When the temperature difference between indoors and outdoors exceeds a preset temperature difference, the bet return mode may be selected by the mode switching controller 135 to prevent condensation from occurring in the ventilation casing and secure the amount of ventilation in the room.

As shown in FIG. 8, when the bet return mode is selected, the mode switching controller 135 is controlled so that the selection door 157 of the bypass damper 150 opens the first communication port 155, and the selection door When 157 opens the first communication port 155, the first door part 157a of the selection door 157 seals the second communication port 156, and the second door part 157b is It overlaps with the first partition wall 151 of the space 154.

And, the mode switching controller 135 seals the internal air circulation port 161 by the internal air circulation damper 165, opens the return opening 173 by the internal air return damper 170, and The device 113 is opened or closed by the exhaust damper 185 and the outdoor air damper 187, or the air supply blower 181 in the state in which the opening degree of the external device 113 and the exhaust port 112 is adjusted according to the temperature difference between indoors and outdoors. And the exhaust blower 183 is operated.

When the exhaust blower 183 is operated, the bet flows into the ventilation space 114a through the ventilation port 114, and the bet flows into the ventilation space 114a passes through the heat exchange element 140 through the first communication port 155. After passing through, the bet passing through the heat exchange element 140 moves to the exhaust inlet space and the exhaust discharge space.

In addition, a part of the bet that has moved to the exhaust discharge space is discharged to the outside through the exhaust port 112, but the remaining part moves to the outside space 113a through the return port 173.

The bet moved to the outside air space (113a) is mixed with the outside air introduced into the outside air space (113a) through the air outlet (113) by the air supply blower (181), the temperature of the outside air introduced into the inside of the ventilation casing (110) As is increased, by reducing the temperature difference between the inside and outside air of the ventilation casing 110, it is possible to prevent the occurrence of condensation due to the temperature difference between indoors and outdoors, and at the same time introduce the outside air into the room together with the inside air to secure the amount of indoor ventilation.

At this time, the mode switching controller 135 controls the opening of the outside air damper 187 and the exhaust damper 185 according to the temperature difference between the inside and outside of the ventilation casing 110 to control the mixing amount of the inside and outside air. The temperature difference can be adjusted.

Here, when the bet return mode operates, when the opening degree of the bet return damper 170 is 0°, it is all closed, and when the bet return damper 170 is all open, the bet return damper 170 is returned at an angle of 5° to 45°. (173) can be opened.

If the opening degree of the bet return damper 170 is less than 5°, condensation may occur due to the small amount of decrease in the temperature difference due to the small circulation of the bet. If the opening degree of the bet return damper 170 exceeds 45°, the amount of bet introduced There are many, which can reduce the effectiveness of ventilation.

And, assuming that the opening degrees of the outside air damper 187 and the exhaust damper 185 are all closed when 0° and all open when 90°, the outside air damper 187 and the exhaust damper 185 are 45° to 85°. The external device 113 and the exhaust port 112 can be opened at an angle of.

If the opening degree of the outdoor air damper 187 and the exhaust damper 185 is less than 45°, the amount of discharged internal air and the amount of external air introduced decreases, thereby reducing the ventilation effect, and the opening degree of the outdoor air damper 187 and the exhaust damper 185 When is greater than 85°, the amount of bet moving from the exhaust space 112a to the outside space 113a decreases, and the effect of the bet return is insignificant.

On the other hand, the external air damper 187 and the exhaust damper 185 are 90° to open the external air port 113 and the exhaust port 112 at an angle inversely proportional to the opening degree of the internal air return damper 170-internal air return damper 170 The outside opening 113 and the exhaust port 112 can be opened in response to the opening degree of the internal return damper 170.

For example, when the opening degree of the internal return damper 170 is 5°, the external air damper 187 and the exhaust damper 185 are at an angle of 90°-5° (opening of the internal return damper) = 85°. ) And the exhaust port 112 may be opened so that the outdoor air damper 187 and the exhaust damper 185 may open the external port 113 and the exhaust port 112 in response to the opening degree of the internal return damper 170.

In this way, by adjusting the opening degree so that the internal air return damper 170, the external air damper 187, and the exhaust damper 185 are in inverse proportion to the internal air return damper 170, the amount of the internal air and the external air introduced The temperature difference can be easily adjusted.

And, if necessary, the exhaust port 112 is sealed by the exhaust damper 185 to send all the inside air to the outside air space 113a to mix the inside and outside air, or the outside air hole 113 is sealed by the outside air damper 187 Accordingly, the occurrence of condensation may be prevented by increasing the internal temperature of the ventilation casing 110 only with the internal air temperature only to the external air space 113a while the introduction of external air is blocked.

The control method of the heat recovery ventilation apparatus in which the intake and discharge directions of internal and external air can be easily changed according to an embodiment of the present invention may include an air cleaning mode.

The air cleaning mode may be selected by the mode switching controller 135 when the concentration of yellow sand or fine dust increases and the degree of pollution of the outside air increases.

As shown in FIG. 9, when the air cleaning mode is selected, the mode switching controller 135 rotates the selection door 157 so that the bypass damper 150 opens the second communication port 156.

At this time, the selection door 157 is rotated so that the second door part 157b seals the first communication port 155, and the first door part 157a is positioned so that it protrudes in the direction in which the heat exchange element 140 is located. do.

And, the mode switching controller 135 controls the air circulation damper 165 to open the air circulation port 161, and the air return damper 170 closes the return port 173, and the exhaust damper 185 Accordingly, the exhaust port 112 is closed, and the exhaust fan 183 is not operated in a state in which the outdoor port 113 is closed by the outdoor air damper 187, but only the air supply fan 181 is operated.

When the air supply blower 181 is operated, the air outlet 113 and the exhaust opening 112 are closed, so that the inside air through the ventilation opening 114 by the suction power of the air supply blower 181 is ventilated through the ventilation opening 114 The bet introduced into (114a) and introduced into the ventilation space (114a) is connected to the bypass flow passage (160) through the second communication port (156) of the first space (153) of the bypass damper (150). Move to space 154.

The bet that has moved to the second space 154 moves through the bypass passage unit 160, and moves to the outside air space 113a through the internal air circulation port 161 due to the closing of the exhaust port 112, and the outside air space ( The bet moved to 113a) passes through the air filter 145 to filter out foreign substances contained in the bet, passes through the heat exchange element 140, moves to the air supply space 111a, and is supplied back to the room through the supply port 111. , In a state in which contaminated outside air is blocked, clean air can be circulated and supplied to the room in the form of circulating contaminated internal air by the air filter 145.

2, when the operation of the heat recovery ventilator 100 is stopped, the mode switching controller 135 seals the exhaust port 112 by the exhaust damper 185, and the outside air damper 187 The mechanism 113 is sealed, the first door portion 157a of the selection door 157 seals the first communication port 155, and the second door portion 157b seals the second communication port 156 By controlling the bypass damper 150 so that it is possible to prevent foreign substances from penetrating into the ventilation casing 110 through the ventilation opening 114, the exhaust opening 112, and the external opening 113.

Here, the mode switching controller 135 can operate by automatically switching to another mode according to environmental changes while performing a specific mode, and the mode switching controller 135 is controlled differently according to environmental changes other than the exemplarily described modes. Other modes may be further included.

And, when performing inspection such as replacement of the heat exchange element 140 of the heat recovery ventilator 100, cleaning or replacement of the air filter 145, or repairing a failure, the inspection door 120 through the latch member 123 Is released and the inspection door 120 is lifted, the opposite direction of the latch member 123 is over the inspection door 120 by the latch portion 121, so the heat recovery ventilation device 100 is installed on the ceiling. In this case, it is possible to prevent the occurrence of a safety accident while the inspection door 120 falls.

In addition, when the mode switching controller 135 is repaired, if the controller cover 130 is removed from the controller insertion unit 117, the mode switching controller 135 is installed on the controller cover 130, so that it can be easily separated. have.

On the other hand, as in another embodiment, when the heat recovery ventilator 100 is installed on the indoor ceiling, the ventilation opening 114 and the air supply 111 are on the surface facing the floor of the room in the ventilation casing 110. Because it is formed, it is not necessary to install separate ducts in the ventilation port 114 and the air supply port 111, and it is possible to directly inhale the inside air or discharge the outside air into the room by boat.

In addition, in order to replace or inspect the heat exchange element 140, the inspection door 120 may be opened to perform replacement or inspection. When replacing the air filter 145, the filter cover 123 formed on the inspection door 120 There is an advantage that the air filter 123 can be easily replaced by opening the filter hole through ).

Accordingly, the heat recovery ventilator 100, which is easy to change the direction of intake and discharge of internal and external air according to an embodiment of the present invention, is provided with the supply air inlet space 111b and the air supply space 111a by the air supply plan 111d. A desired location around the ventilation casing 110 by dividing it into an exhaust space 111c, and dividing the exhaust space 112a into an exhaust inlet space 112b and an exhaust discharge space 112c by an exhaust partition plate 112d. In addition to the supply port 111 and the exhaust port 112 can be formed, the supply port 111 and the ventilation port 114 can be formed on the top or bottom of the ventilation casing 110 Even if the duct is not connected to the ventilation port 114, the inside air can be discharged to the outside or outside air can be introduced indoors.

In addition, by selectively supplying internal air to the bypass flow path unit 160 and the heat exchange element 140 by the bypass damper 150, cooling or heating can be performed by outside air while improving the cooling and heating energy efficiency. .

In addition, since the bypass damper 150 completely seals the ventilation opening 114 when the operation is stopped, it is possible to prevent the penetration of foreign substances into the ventilation opening 114, and there is no need to install a damper to seal the ventilation opening 114. Production cost can be reduced.

In addition, by bypassing the bet passing through the bypass flow passage unit 160 by the bypass damper 150 and the inner air circulation damper 165 and passing through the air filter 145, the introduction of outside air is blocked when polluted outdoors. The supply of bet is not only able to clean and supply the bet to the room, but also because the movement path of the bet is shortened rather than circulating the bet through the bet return port 173 by circulating the bet by the bet circulation port 161 Efficiency can be improved.

In addition, since the internal air and external air are mixed and supplied by the internal return damper 170, the occurrence of condensation can be prevented, and the internal air return damper 170 is installed in an inclined manner to reduce the size of the ventilation casing 110. .

In addition, in order to replace or inspect the heat exchange element 140, the inspection door 120 may be opened to perform replacement or inspection. When replacing the air filter 145, the filter cover 123 formed on the inspection door 120 There is an advantage that the air filter 145 can be easily replaced by opening the filter hole through ).

In the above, the embodiments of the present invention have been described, but the scope of the present invention is not limited thereto, and the embodiments of the present invention are easily changed by those of ordinary skill in the technical field to which the present invention pertains and are recognized as equivalent. It includes all changes and modifications to the extent that it becomes available.

100: Heat recovery ventilation device that facilitates changing the intake and discharge directions of internal and external air
110: ventilation casing 111: air supply
111a: air supply space 111b: air supply inflow space
111c: air supply and discharge space 111d: air supply board
112: exhaust port 112a: exhaust space
112b: exhaust inflow space 112c: exhaust exhaust space
112d: exhaust partition plate 113: outside air
113a: outdoor space 114: vent
114a: ventilation space 115: access port
117: controller insertion part 120: inspection door
121: finishing cover 123: filter cover
125: detachment means 130: controller cover
135: mode switching controller 140: heat exchange element
145: air filter 150: bypass damper
151: first bulkhead 152: second bulkhead
153: first space 154: second space
155: first communication port 156; 2nd communication port
157: selection door 157a: first door portion
157b: second door portion 160: bypass passage portion
161: internal air circulation port 165: internal air circulation damper
170: bet return damper 171: exhaust bulkhead
173: return port 181: supply air blower
183: exhaust blower 185: exhaust damper
187: outside air damper

Claims (7)

The air supply space communicates with the air supply port that discharges the outside air into the room, the ventilation space communicates with the ventilation port through which the internal air flows, the exhaust space communicates with the exhaust port through which the internal air is discharged, and communicates with the outside air through which outside air is introduced. Ventilation casing divided into the outside air space,
A heat exchange element installed in the center of the ventilation casing to divide the supply air space, the ventilation space, the exhaust space, and the outside air space, and heat-exchanging while passing through the air introduced into the external air and the internal air introduced into the ventilation opening,
A supply air blower installed in the air supply space to forcibly circulate internal and external air from the ventilation casing and supply it to the interior;
An exhaust blower installed in the exhaust space and forcibly circulating inside and outside air in the ventilation casing to discharge it to the outside,
The air supply space is
A supply air discharge space in the air supply space to form the air supply ports in various directions in the ventilation casing and communicate with the air supply ports,
A supply air inlet space in which the air supply blower is installed, located at a portion in which the heat exchange element is located so as to supply outside air passing through the heat exchange element to the air supply discharge space, and
And a supply mechanism partition plate partitioning the air supply space into the air supply discharge space and the air supply inflow space,
The exhaust space is
An exhaust discharge space located at a portion where an edge of the ventilation casing is located in the exhaust space so as to form the exhaust port in various directions in the ventilation casing and communicated with the exhaust port,
An exhaust introduction space in which the exhaust blower is installed, located at a portion in which the heat exchange element is located so as to exhaust the air passing through the heat exchange element to the exhaust discharge space, and
And an exhaust partition plate partitioning the exhaust space into the exhaust discharge space and the exhaust introduction space,
And a return port communicating the exhaust discharge space and the outside air space to return a part of the bet exhausted to the exhaust discharge space to the outside air space, and an inside return damper installed at the return port to open and close the return port, ,
The return port has an end obliquely formed on the exhaust partition wall partitioning the exhaust discharge space and the outside air space so as to reduce the volume of the Singapore ventilation casing by minimizing the space occupied by the inner return damper, and the return port is formed at an inclined portion Heat recovery ventilation device, characterized in that it is easy to change the intake and discharge directions of internal and external air. The method of claim 1,
Includes a bypass flow passage connecting the ventilation space and the exhaust introduction space so that the internal air of the heat exchange element is formed at an upper or lower portion of the heat exchange element and the internal air introduced into the ventilation port is discharged to the exhaust port without passing through the heat exchange element. Heat recovery ventilation device, characterized in that it is easy to change the intake and discharge directions of internal and external air. The method of claim 2,
An air filter installed on a surface of the heat exchange element corresponding to the outside air space to filter out foreign matter,
An internal air circulation port formed in the bypass flow passage and communicated with the external air space so that the internal air introduced into the bypass flow passage part is sent to the outside air space and introduced back into the room through the air filter, and
Heat recovery ventilation device, characterized in that it comprises an internal air circulation damper for opening and closing the internal air circulation port, and easy to change the direction of intake and discharge of internal and external air. delete The method of claim 1,
The air supply port and the ventilation port
When the ventilation casing is installed on the ceiling of the room, the ventilation casing is formed on a surface facing the floor of the room so that outside air is supplied or sucked into the room without connecting a duct. Heat recovery ventilator for easy change of suction and discharge direction. The method of claim 5,
The ventilation casing is
An inspection port formed in the ventilation casing to open the ventilation casing to replace or inspect the heat exchange element or filter, and
An inspection door installed at the inspection port to open and close the inspection port,
Heat recovery ventilator, characterized in that it is installed on the inspection door and includes a finishing cover for closing the ceiling. The method of claim 2,
And a bypass damper installed in the ventilation space to send the internal air introduced into the ventilation space through the ventilation port to the heat exchange element, or to select and send to the bypass flow path part,
The bypass damper is
A first communication port communicating with the side of the heat exchange element,
A second communication port communicating with the side of the bypass flow passage,
It includes a selection door that rotates between the first communication port and the second communication port and selects and seals the first communication port or the second communication port,
The selection door includes a first door part sealing the first communication port and a second door part sealing the second communication port so that the first communication port and the second communication port can be sealed together when the introduction of the bet is blocked. And, the first door part and the second door part have an angle corresponding to the angle formed by the first communication port and the second communication port. Device.

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