KR20190133374A - Total Heat Exchanger - Google Patents

Abstract

An objective of the present invention is to provide a total heat exchanger having added air cleaning and bypass functions while maintaining the volume of a total heat exchanger. The total heat exchanger comprises: an outer case of a box shape having an outdoor inlet into which outside air flows, an indoor outlet to discharge air entering from the outdoor inlet to an indoor space, an indoor inlet into which inside air flows, and an outdoor outlet to discharge air entering from the indoor inlet to an outdoor space; a total heat exchange module which is installed at the center of the outer case, and includes a heat transfer element to exchange heat between the outside air and the inside air; and an inner panel installed on a lower portion of the total heat exchange module across the interior of the outer case to form an upper space and a lower space of the outer case. The inner panel includes an indoor air inlet hole formed on a portion adjacent to the indoor inlet, and a first communication hole formed on a portion adjacent to the outdoor inlet. A flow passage for cleaning air communicating with the upper space by the indoor air inlet hole and the first communication hole and connecting the indoor inlet and the outdoor inlet is formed in the lower space.

Description

Total Heat Exchanger

The present invention relates to a total heat exchanger for exchanging heat at the same time as the intake and exhaust of indoor and outdoor air, and more particularly, a heat transfer including a bypass flow path directly connecting the indoor and outdoor without passing through the heat exchange element inside the total heat exchanger. It is about an exchange.

In general, an electrothermal heat exchanger is used as a component of an air conditioning system of a building, and the indoor air discharged and the outdoor air sucked in heat are discharged in the process of discharging the indoor air to the outside for the ventilation of the building and sucking the outdoor air into the room. By replacing them, it is possible to reduce the loss of ventilation in maintaining the thermal condition of the room.

Such a heat exchanger is provided with an inlet and an outlet on the indoor side and a flow path therebetween so that indoor air is discharged, as well as a flow path therebetween. A flow path is formed between them.

The total heat exchange module including the total heat exchange element is installed in the case of the enclosure shape in which each inlet and outlet is formed, and a plurality of partitions are formed at the intersection of each flow path, and the total heat exchange element is formed at the center portion thereof. The indoor air and the outdoor air pass through the flow path formed between the partition walls and have a configuration in which heat is exchanged by the total heat exchange element. Therefore, the outdoor air is changed to a temperature similar to that of the indoor air and introduced into the room, thereby minimizing indoor heat loss.

However, if the indoor and outdoor temperatures are similar, or if you want to change the indoor temperature to be similar to the outdoor temperature, it is necessary to discharge the indoor air as it is or to introduce the outdoor air as it is without going through the heat exchange element. Accordingly, since a separate bypass pipe or a flow path is formed, plans for a structure capable of minimizing interference with other components and increasing space utilization are continuously being improved.

In addition, if the electrothermal heat exchanger includes other functions to improve the indoor air environment in addition to the ventilation, additional parts are needed to realize the function, and a separate pipe connecting the parts and the inlets and outlets formed at the indoor and outdoor sides is provided. This is necessary. Therefore, since the structure is complicated and the product size is enormous, a conventional electrothermal heat exchanger has only its original function of ventilating indoor air and exchanging heat of indoor and outdoor air.

The present invention is to solve the problems of the prior art as described above, specifically adding the air cleaning function to the conventional heat exchanger, and implements the air cleaning function without maintaining or significantly increasing the conventional parts and volume It is an object to provide a total heat exchanger.

In addition, the present invention has an air cleaning function, at the same time has a bypass function to immediately exhaust the indoor air to the outside, the heat exchanger is a configuration for implementing the air cleaning function and bypass function compactly accommodated in the conventional heat exchanger The purpose is to provide.

In order to solve the above problems, an embodiment of the present invention provides an outdoor side inlet through which external air is introduced, an indoor side outlet through which air introduced from the outdoor side inlet is discharged into the room, an indoor side inlet through which internal air is introduced, and the An outer case of a housing shape in which an outdoor side outlet through which air introduced from the indoor side inlet is discharged to the outside is formed; An electrothermal heat exchange module installed at a central portion of the outer case and including a heat transfer element to exchange heat between the external air and the internal air; And an inner panel disposed below the electrothermal exchange module to cross the inside of the outer case to form an upper space and a lower space of the outer case. Includes, the inner panel, the indoor air inlet hole is formed in the portion adjacent to the indoor side inlet, the first communication hole is formed in the portion adjacent to the outdoor side inlet, the lower space, the indoor air inlet and The first communication hole is in communication with the upper space and characterized in that the air cleaning passage for connecting the indoor entrance and the outdoor entrance is formed.

In this case, the lower space itself may be a flow path, and a separate flow path connecting the indoor air inflow hole and the first communication hole may be formed.

In another aspect, the present invention is a filter installed on the surface facing the outdoor side inlet of the total heat exchange module; And an intake fan installed at the indoor side outlet, wherein the indoor air flowing into the indoor side entrance is easily discharged through the air cleaning passage and the filter to the indoor side outlet.

Therefore, as the indoor air moves to the outdoor side inlet along the air cleaning passage and passes through the filter to be introduced back into the room, the heat exchanger has an air cleaning function. Thus, the present invention can implement the air cleaning function only by the heat exchanger installed when the building air conditioning, there is an advantage that does not need to install an air cleaner separately.

In addition, the outer case of the present invention further comprises a flange extending from the circumference of the interior side inward direction of the outer case, the lower side of the flange is formed through the flow path, the indoor air inlet hole and the flow path hole It may further include a connection channel for connecting. Accordingly, the indoor air may be introduced into the air cleaning passage formed in the lower space of the outer case through the connection passage.

Furthermore, the present invention further includes a first electric damper rotatably installed about a horizontal axis inside the flange, wherein the first electric damper includes a first direction and a first direction for completely closing the indoor entrance. A second direction of opening only the passage hole among the indoor side entrances in a direction rotated by a predetermined angle from the second direction, and a third direction of opening the interior side entrance in the front direction in a direction rotated a predetermined angle from the first direction and the second direction; It can be provided as possible.

Therefore, in the present invention, by rotating the first electric damper, the indoor side entrance of the total heat exchanger can be completely closed, or only the air cleaning oil can be opened and used only in the air cleaning mode, or the front opening can be used to ventilate the indoor air.

The present invention may further include a second electric damper for opening and closing the outdoor side entrance. The second electric damper opens the outdoor side entrance when the outdoor air is introduced into the room for ventilation, and closes the outdoor side entrance to circulate only the indoor air when the heat exchanger is not used or is intended to be used only in the air cleaning mode. This is preferred. That is, when the first electric damper is rotated in the second direction, and is intended to be used only in the air cleaning mode, the second electric damper preferably closes the outdoor entrance.

In another aspect, the present invention may further include an air cleaning damper for opening and closing the first communication hole. This is to open and close the first communication hole according to whether the pre-heat exchanger uses the air cleaning mode.

In the inner panel of the present invention, a second communication hole is formed in a portion adjacent to the outdoor side outlet, and the lower space communicates with the upper space by the indoor air inlet hole and the second communication hole. A bypass flow path connecting the outdoor side inlet may be formed.

In another aspect, the present invention, the bypass damper for opening and closing the communication hole formed in the outdoor side outlet side; An exhaust fan installed at the outdoor side outlet; Further, it may be provided so that the indoor air flowing into the indoor side entrance easily passes through the bypass flow passage to the outdoor side exit.

In addition, the lower space of the present invention, the first guide wall is installed in the direction connecting the indoor side entrance and the outdoor side outlet so as to limit the air flow in the indoor side exit direction; And a second guide wall provided in a direction connecting the indoor side inlet and the outdoor side outlet to restrict the air flow from the outdoor side inlet to the outdoor side outlet. It may further include.

In the present invention, the lower space of the outer case is used as a flow path, but the air cleaning flow path and the bypass flow path are connected to each flow path from the indoor side entrance, and the air from the indoor side entrance to the outdoor side exit and the outdoor side entrance. The first guide wall and the second guide wall are installed to facilitate the flow.

In addition, the center of the upper surface of the outer case of the present invention, a hole may be formed so that the heat exchange module can be inserted. In addition, a filter is installed on the surface facing the outdoor side inlet and the indoor side inlet of the electrothermal exchange module, and the filter is provided to be inserted through a hole formed in the upper surface of the electrothermal exchange module, and one side of the hole. A grip groove may be formed in the groove. Through this, it is possible to simply replace the total heat exchange module by releasing only the bolt for fixing the heat exchange module without removing the outer case, it is also possible to easily replace only the filter using the groove for the grip.

According to the problem solving means of the present invention as described above it can be expected a variety of effects including the following matters. However, the present invention is not achieved by exerting all of the following effects.

According to the present invention, as the indoor air moves to the outdoor side entrance along the air cleaning passage and passes through the filter to be introduced back into the room, the heat exchanger has an air cleaning function. Thus, the present invention can implement the air cleaning function only by the heat exchanger installed when the building air conditioning, there is an advantage that does not need to install an air cleaner separately. In addition, by using the internal space of the total heat exchanger as a flow path and using components included in the total heat exchanger such as a filter, the production is simple, the configuration is compact, and economical.

In addition, the present invention uses the lower space of the outer case as a flow path, by additionally installing the first guide wall and the second guide wall, the indoor air introduced into the indoor side entrance easily moves to the outdoor side exit or outdoor side entrance side. Can be.

In addition, it is possible to replace the heat exchange module simply by releasing only the bolt fixing the heat exchange module without removing the outer case, and the filter groove can be easily replaced by using the groove for the grip.

1 is a perspective view of the total heat exchanger of the present invention,
Figure 2 is an exploded perspective view of the inner panel and the lower case of the present invention,
Figure 3 is a plan view of the outer case and the heat exchange module removed from Figure 1,
4 is a bottom view of FIG. 2;
FIG. 5 is a cross-sectional view taken along the line VV ′ of FIG. 1 from the A direction; FIG.
6A to 6C are cross-sectional views illustrating an operating state in which the first electric damper of FIG. 5 is positioned in a first direction, a second direction, and a third direction;
7 is a cross-sectional view taken along the line B′-V ′ of FIG. 1 from B direction;
8A and 8B are cross-sectional views illustrating an operating state in which the second electric damper of FIG. 7 opens and closes the outdoor side entrance.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

Figure 1 is a perspective view of the heat exchanger of the present invention, Figure 2 is an exploded perspective view of the inner panel and the lower case of the present invention, Figure 3 is a plan view of the outer case and the heat exchange module removed from Figure 1, Figure 4 is the bottom of Figure 2 5 is a cross-sectional view of the V-V 'section of FIG. 1 viewed from the A direction, and FIGS. 6A to 6C are operating states in which the first electric damper of FIG. 5 is positioned in a first direction, a second direction, and a third direction. 7 is a cross-sectional view of the cross-sectional view taken along line B of FIG. 1 in the B direction, and FIGS. 8A and 8B are cross-sectional views illustrating an operation state in which the second electric damper of FIG. 7 opens and closes the outdoor side entrance.

As shown in these drawings, the present invention is installed so as to cross the inside of the outer case 100, the heat exchange module 500, which is installed in the center of the outer case 100, the outer case 100 of the shape of the enclosure An inner panel 110 forming an upper space and a lower space of the case 100 is included.

Referring to FIG. 1, the outer case 100 includes an outdoor side inlet 103 through which external air is introduced, an indoor side outlet 104 through which air introduced from the outdoor side inlet 103 is discharged into the room, and internal air is introduced therein. The indoor side inlet 101 and the outdoor side outlet 102 through which air introduced from the indoor side inlet 101 are discharged to the outside are formed. Each inlet and outlet is formed on the side of the outer case (100). In the drawing, each inlet and outlet are formed at each side edge of the outer case 100, but the reference numerals are shown only in the portion where the flange 120 is formed.

The outer case 100 is composed of an upper case 100a and a lower case 100b for assembling, and as shown in FIG. 1, the heat exchange module 500 is inserted through a central portion of the upper case 100a. The total heat exchange module 500 is disposed so that the upper surface is coincident with the upper surface of the upper case 100a.

Although not illustrated, the heat exchange module 500 is provided to allow the indoor air and the outdoor air to cross and flow between the partition walls including a plurality of partition walls. The heat exchange element is installed in the partition walls to exchange heat energy with the indoor air and the outdoor air. Can be. Therefore, each inlet and outlet passes through the total heat exchange element of the total heat exchange module 500 installed in the center portion, and thus the indoor air is outdoor through the indoor side inlet 101, the heat exchange module 500, and the outdoor side outlet 102. The air is discharged to the outdoor air through the outdoor side inlet 103, the total heat exchange module 500, and the indoor side outlet 104.

The total heat exchange module 500 is assembled to the upper case (100a) by a bolt or the like, is provided to replace the total heat exchange module 500 without disassembling the outer case (100).

The filter 400 is installed on the surface facing the outdoor side inlet 103 of the electrothermal exchange module 500 and the surface facing the indoor side inlet 101. The filter 400 filters the foreign matter in the air before the air passes through the total heat exchange module 500. The filter 400 is also provided to be inserted into the heat exchange module 500 through a hole formed in the top surface of the heat exchange module 500. Further, it is preferable that a grip groove 410 is formed at one side of the hole so as to easily detach and detach the filter 400. Therefore, there is an advantage that the filter 400 can be replaced without disassembling the electrothermal exchange module 500 or the outer case 100.

Referring back to FIG. 2, an inner panel 110 is mounted on the lower case 100b. Inside the lower case 100b, a flow path forming wall 201 is formed along a lower circumference. The flow path forming wall 201 may be formed to protrude inward from the central portion of each side surface.

The inner panel 110 is seated and assembled on the jaw formed by the flow path forming wall 201. A protrusion 111 having a shape corresponding to the flow path forming wall 201 is formed on the bottom surface of the inner panel 110 to improve assemblability, and the flow path is formed by the ribs 112 formed along the circumference of the inner panel 110. It may be seated and assembled on the forming wall 201.

Therefore, a space is formed between the lower case 100b and the inner panel 110 by the flow path forming wall 201, and the space becomes the air cleaning passage 200 and the bypass passage 200 to be described later.

Figure 3 shows the upper surface of the inner panel 110 after removing the outer case 100, the intake and exhaust fan 300 and the heat exchange module 500 for forcing a fluid flow is installed on the upper surface of the inner panel 110. do. The intake fan 301 is for inhaling outdoor air into the room and is installed at a corner adjacent to the indoor side outlet 104, and the exhaust fan 302 is for discharging indoor air to the outside and is adjacent to the outdoor side outlet 102. It is installed in the corner.

In addition, the heater case 130 may be installed in an outer direction of the outer case 100 along the circumference of the outdoor side outlet 102, and a heater may be installed by winding a heating wire on the outer circumference of the heater case 130. This is to inhale the outdoor air by heating if the indoor temperature is to be maintained higher than the outdoor temperature.

In addition, a cylindrical inner flange 120a may extend in the inward direction of the outer case 100 along the circumference of the indoor side inlet 101. The inner flange 120a may not only easily guide the indoor air to pass through the heat exchange module 500, but may also guide the indoor air to a flow path 200 formed below the inner panel 110 as described below. have.

FIG. 4 illustrates a bottom surface of the inner panel 110. An inner air inlet 230 is formed at a portion adjacent to the indoor side inlet 101, and adjacent to the outdoor side inlet 103. A first communication hole 214 is formed in the portion, and a second communication hole 212 is formed in the portion adjacent to the outdoor side outlet 102. An air cleaning damper 213 is installed in the first communication hole 214, and a bypass damper 211 is installed in the second communication hole 212.

In addition, the lower surface of the inner panel 110, the first guide wall 221 is installed in a direction connecting the indoor side inlet 101 and the outdoor side outlet 102 so as to restrict the air flow in the direction of the indoor side outlet (104) And a second guide wall 222 provided in a direction connecting part of the indoor side inlet 101 and the outdoor side outlet 102 while restricting air flow from the outdoor side inlet 103 to the outdoor side outlet 102. ) Is formed. That is, the second guide wall 222 has air from the indoor side entrance 101 to the outdoor side exit 102 without restricting the air flow from the indoor side entrance 101 to the outdoor side entrance 103. The flow is formed to facilitate. Although the first guide wall 221 and the second guide wall 222 are illustrated as being formed on the lower surface of the inner panel 110, the first guide wall 221 and the second guide wall 222 may be formed on the lower case 100b in the same manner.

5 and 6, a connection flow path 232 connecting the inner flange 120a of the indoor side entrance 101 and the flow path 200 under the inner panel 110 is formed, and the indoor side entrance 101 is formed. ), The first electric damper 240 is installed.

A flow path hole 231 is formed in the circumferential direction under the inner flange 120a, and a connection flow path 232 connecting the flow path hole 231 and the indoor air inlet hole 230 formed in the inner panel 110 is provided. Is formed. Therefore, the indoor air may enter the heat exchange module 500 through the indoor side inlet 101 and the inner flange 120a or may flow into the lower side of the inner panel 110 through the connection passage 232.

The first electric damper 240 is installed to open and close the indoor side entrance 101 inside the inner flange 120a. The first electric damper 240 is in the form of a disc, and has a horizontal shaft 240a, and both ends of the shaft 240a are rotatably installed on the inner flange 120a. The first electric damper 240 may be provided to be rotated by a motor.

The first electric damper 240 is a first direction (see FIG. 6A) that completely closes the indoor side entrance 101, and rotates a predetermined angle from the first direction only in the flow path hole 231 of the indoor side entrance 101. It is rotatably provided in the 3rd direction (refer FIG. 6C) which fully opens an indoor side entrance by the direction rotated a predetermined angle from the 2nd direction (refer FIG. 6B) opening, a 1st direction, and a 2nd direction.

7 and 8, the second electric damper 250 is installed at the outdoor side entrance 103. The second electric damper 250 may be formed in the hole 120 forming the outdoor side inlet 103 of the outer case 100 or the flange 120 extending from the outdoor side inlet 103. In addition, the second electric damper 250 may be any type as long as it can open and close the outdoor side entrance 103, but in one embodiment, is provided in the form of a disc and is rotatable by a motor having an axis 250a at the center thereof. Can be.

Accordingly, the second electric damper 250 is configured to be rotatable in a closed state (FIG. 8A) for completely closing the outdoor side inlet 103 and an open state (FIG. 8B) for opening the outdoor side inlet 103.

The present invention adds an air cleaning function and a bypass function to an electrothermal heat exchanger having a ventilation function. Hereinafter, an operation relationship in the ventilation mode, the air cleaning mode, and the bypass mode will be described.

In the general ventilation mode, the air cleaning damper 213 and the bypass damper 211 close the first communication hole 214 and the second communication hole 212, respectively, and the first electric damper 240 is indoors. The side entrance 101 is positioned in the third direction to open the front, and the second electric damper 250 is positioned to open the outdoor side entrance 103. Therefore, indoor air is discharged only to the outdoor side outlet 102, and no air is discharged to the flow path 200 formed under the inner panel 110 by the air cleaning damper 213 and the bypass damper 211. This general air flow is shown by the arrows in FIG. 3.

In the air cleaning mode, the first electric damper 240 is located in the second direction opening only the flow path hole 231, and the air cleaning damper 213 opens the first communication hole 214 for bypass. The damper 211 closes the second communication hole 212, and the second electric damper 250 is positioned in a state of closing the outdoor side entrance 103. Therefore, outdoor air is not introduced into the room by the second electric damper 250, and only indoor air circulates inside the heat exchanger. The flow of indoor air entering the indoor side inlet 101 is shown by the X-X 'line arrow in FIG. Referring to this, the indoor air introduced into the heat exchanger flows through the connection flow passage 232 to the lower inner flow path 200 of the inner panel, and moves upward through the first communication hole 214 to filter 400 and the heat transfer element. It is discharged through the indoor side outlet 104 in a purified state through. That is, in the air cleaning mode, the air cleaning passage 200 is formed in the lower portion of the inner panel.

In the bypass mode, the air cleaning damper 213 closes the first communication hole 214, the bypass damper 211 opens the second communication hole 212, and the first electric damper 240. Is positioned in the second direction to open only the passage hole 231. The path by which indoor air is bypassed to the outside is shown by the arrow Y-Y 'in FIG. Referring to this, the indoor air introduced through the indoor side inlet 101 flows through the connection passage 232 to the lower inner channel 200 of the inner panel, and moves upward through the second communication hole 212 to the outdoor side outlet. Via 102 can be immediately discharged without passing through the total heat exchange module (500). That is, the bypass passage 200 is formed in the lower portion of the inner panel in the bypass mode.

As a result, the present invention maintains the volume of the total heat exchanger by implementing the air cleaning function and the bypass function very compactly in the conventional heat exchanger, and in the air cleaning function, the filter 400 and the structure already used conventionally By using it as it is, there is an advantage in structure and economic efficiency. Functions in each mode by installing a damper while allowing air to flow up and down the inner panel 110 through the indoor air inlet hole 230, the first communication hole 214, and the second communication hole 212. This can be implemented reliably.

The above description is merely illustrative of the technical spirit of the present invention, and those skilled in the art to which the present invention pertains various modifications and variations without departing from the essential characteristics of the present invention. The scope of protection should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

100: outer case 100a: upper case
100b: lower case 101: indoor side entrance
102: outdoor side exit 103: outdoor side entrance
104: outdoor side exit 110: inner panel
111: protrusion 112: rib
120: flange 120a: inner flange
130: heater case 200: euro
201: flow path forming wall 211: bypass damper
212: second communication hole 213: air cleaning damper
214: first communication hole 221: first guide wall
222: second guide wall 230: indoor air inlet
231: euro ball 232: connection euro
240: first electric damper 250: second electric damper
300: intake fan 301: intake fan
302: exhaust fan 400: filter
410: grip groove 500: heat exchange module

Claims (11)

Outdoor side inlet where outside air flows in, Indoor side outlet where air from the outside side inlet is discharged into the room, Indoor side inlet where the inside air is inlet, and Outdoor side in which air from the indoor side outlet is discharged to the outside An outer case having an enclosure shape having an outlet;
An electrothermal heat exchange module installed at a central portion of the outer case and including a heat transfer element to exchange heat between the external air and the internal air; And
An inner panel disposed below the electrothermal exchange module to cross the inside of the outer case to form an upper space and a lower space of the outer case;
Including,
The inner panel, the indoor air inlet hole is formed in a portion adjacent to the indoor side inlet, the first communication hole is formed in a portion adjacent to the outdoor side inlet,
The lower space, the heat exchanger characterized in that the air cleaning passage for communicating with the upper space by the indoor air inlet hole and the first communication hole connecting the indoor side inlet and the outdoor side inlet is formed.
The method of claim 1,
A filter installed on a surface of the electrothermal heat exchange module facing the outdoor side inlet; And
An intake fan installed at the indoor side outlet;
Including more,
And an indoor air flowing into the indoor side inlet is discharged through the air cleaning passage and the filter to the indoor side outlet.
The method of claim 2,
The outer case further includes a flange extending in the inward direction of the outer case from the circumference of the indoor side inlet,
The passage hole is formed through the lower side of the flange,
And a connection flow path connecting the indoor air inflow hole and the flow path hole.
The method of claim 3,
Further comprising a first electric damper rotatably installed around the horizontal axis in the flange,
The first electric damper may include a first direction that completely closes the indoor side entrance, a second direction that rotates a predetermined angle from the first direction, and a second direction, the first direction, and the first opening of the passage hole among the indoor side entrances. Electrothermal heat exchanger characterized in that it is rotatably provided in a third direction to open the interior side entrance to the front in a direction rotated by a predetermined angle from two directions.
The method of claim 2,
And a second electric damper for opening and closing the outdoor side entrance.
The method of claim 1,
And an air cleaning damper for opening and closing the first communication hole.
The method of claim 1,
The inner panel has a second communication hole is formed in a portion adjacent to the outdoor side outlet,
And a bypass flow passage communicating with the upper space by the indoor air inlet hole and the second communication hole, and connecting the indoor inlet and the outdoor inlet to the lower space.
The method of claim 6,
A bypass damper for opening and closing the second communication hole; And
An exhaust fan installed at the outdoor side outlet;
Including more,
Electrothermal heat exchanger characterized in that the indoor air flowing into the indoor inlet is discharged to the outdoor side exit through the bypass passage.
The method according to any one of claims 1 to 7,
In the lower space,
A first guide wall installed in a direction connecting the indoor side inlet and the outdoor side outlet to restrict air flow in the indoor side outlet direction; And
A second guide wall installed in a direction connecting the indoor side inlet and the outdoor side outlet to limit the air flow from the outdoor side inlet to the outdoor side outlet;
Electrothermal heat exchanger comprising a further.
The method of claim 1,
The center of the upper surface of the outer case, the heat exchanger, characterized in that the hole is formed so that the heat exchange module can be inserted.
The method of claim 9,
Filters are installed on the surface of the electrothermal heat exchange module facing the outdoor side inlet and the surface facing the indoor side inlet, respectively.
The filter is provided to be inserted through a hole formed in the top surface of the total heat exchange module,
The heat exchanger, characterized in that the groove for the grip is formed on one side of the hole.

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