KR102548326B1 - Heat Exchanger - Google Patents

Abstract

An object of the present invention is to provide a total heat exchanger in which outside air introduction and inside discharge passages can be formed separately without separately providing outside air and exhaust ducts,
A total heat exchanger in which a total heat exchange element is installed in a housing to exchange heat between ventilated air through the total heat exchange element, wherein the housing includes an outside air room in which outdoor air flows into the housing to form a flow path leading to the total heat exchange element; An air supply room connected to the outside air room through the total heat exchange element and forming a flow path through which air is supplied to the room, and an exhaust room connected to the room through the total heat exchange element and forming a flow path through which indoor air is exhausted to the outside. The housing is installed so that the front surface is in contact with the indoor area and the rear surface is in contact with the outdoor area, and a part of the outside air room and the exhaust room communicates with the outdoors through the rear surface of the housing, and a rear grill installed on the rear surface of the housing. Further, the rear grill is characterized in that an outside air hole through which outdoor air flows into the housing and communicates with the outside air room and an exhaust hole through which indoor air is discharged to the outside and communicates with the exhaust room are formed through.

Description

Total Heat Exchanger {Heat Exchanger}

The present invention relates to a ventilation fan for ventilating indoor air to the outdoors. More specifically, it relates to a total heat exchanger that includes a total heat exchange element as one of the ventilation fans and can reduce heating and cooling loss through heat exchange between indoor and outdoor air.

The total heat exchange element is one in which a plurality of spacers are alternately arranged in layers in a direction that intersects each other, forming a flow path in two directions that intersect. The total heat exchanger refers to a ventilation fan in which indoor and outdoor air exchanges heat using such a total heat exchange element, and is a device that can increase cooling and heating efficiency than a normal ventilation fan.

1 is a plan view showing the internal structure of a conventional total heat exchanger. Referring to this, in the total heat exchanger 1, the total heat exchange element 3 is obliquely arranged in the housing 2 of the enclosure shape, so that the suction and discharge ports of the flow path are secured. In addition, partition walls 4 are formed from the apex of the total heat exchange element 3 to the inner wall of the housing 2, so that the outside air and the inside do not mix. Accordingly, the bet RA is sucked into the housing 2 by the blowing fan 5 and exhausted EA to the outside via the total heat exchange element 3 and the blowing fan 5. Further, the outside air (OA) is sucked into the housing 2 by the blowing fan 5 and supplied to the room via the total heat exchange element 3 and the blowing fan 5 as SA.

On the other hand, when the indoor/outdoor temperature difference is not large, a bypass mode for directly exhausting (EA) the bet (RA) without passing through the total heat exchange element (3) may be additionally implemented. The bypass mode may be configured by forming a hole in the bulkhead 4 and installing a motorized damper that opens and closes the hole. Therefore, if only the ventilation fan 5 on the exhaust (EA) side is driven with the electric damper open, the bet (RA) can be directly exhausted (EA) without passing through the total heat exchange element (3). Patent Document 1 below also has the same structure.

However, the structure of forming the partition wall 4 or installing the electric damper on the partition wall 4 causes a problem in that the overall width W of the housing increases due to the width of the partition wall 4, and the size As a problem, there is a limitation that the total heat exchanger can only be installed in a buried type in the ceiling or in a standing type on the indoor floor.

In addition, since the outside air and exhaust ducts of the total heat exchanger are provided separately in both the ceiling-embedded type and the standing type, there is no problem of mixing of the outside air and exhaust. However, there is a problem in that separate outdoor air and exhaust ducts are provided to separate the outdoor air introduction passage and the indoor air discharge passage, causing an increase in the overall size and limiting the installation form.

10-1638065 B1, Air purifier type ventilation system using bypass and filter and method of supplying and exhausting indoor and outdoor air using the same

The present invention is to solve the problems of the prior art as described above, and specifically, an object of the present invention is to provide a total heat exchanger in which external air introduction and internal discharge passages can be formed separately without separately preparing external air and exhaust ducts. .

An embodiment of the present invention provides the following total heat exchanger in order to solve the above problems.

The present invention is a total heat exchanger in which a total heat exchange element is installed in a housing to exchange heat with ventilated air through the total heat exchange element, wherein the housing forms a flow path through which outdoor air flows into the housing to reach the total heat exchange element. An outdoor air room connected to the outdoor air room through the total heat exchange element and connected to the air supply room and the room connected through the total heat exchange element to form a flow path through which air is supplied to the room, and forming a flow path through which indoor air is exhausted to the outdoors The housing is partitioned to include an exhaust room, and the housing is installed so that the front side is in contact with the indoor area and the rear side is in contact with the outdoor area, and a part of the outside air room and the exhaust room communicates with the outdoors through the rear surface of the housing. Further comprising a rear grill installed, wherein the rear grill has an outdoor air hole through which outdoor air flows into the housing and communicates with the outdoor air room, and an exhaust hole through which indoor air is discharged to the outdoors and communicates with the exhaust room. to be

In addition, a partition is formed on the inside of the rear grill so that the flow path connected to the outside air hole of the rear grill and the outside air room, and the flow path connected to the exhaust hole of the rear grill and the exhaust room are formed separately.

In addition, the rear grill includes a grill body disposed to face the rear surface of the housing and extending in one direction, and grill wings extending from both sides of the grill body toward the rear surface of the housing, the outside air hole and the exhaust hole. is characterized in that it is formed on different sides of the rear grill.

In addition, the rear grill includes a grill body disposed to face the rear surface of the housing and extending in one direction, and grill wings extending from both sides of the grill body toward the rear surface of the housing, the outside air hole and the exhaust hole. Is characterized in that it is formed spaced apart from each other at one end and the other end of the rear grill.

In addition, the rear grill includes a grill body disposed to face the rear surface of the housing and extending in one direction, and grill wings extending from both sides of the grill body toward the rear surface of the housing, and the outside air hole is the grill body. It is formed in the grill wings formed on one side of the body, and the exhaust hole is formed in the grill wings formed on the other side of the grill body.

In addition, the outside air hole is formed at one end of the grill blade, and the exhaust hole is formed at the other end of the grill blade.

In addition, the rear grill includes a grill body disposed to face the rear surface of the housing and extending in one direction, and grill wings extending from both sides of the grill body toward the rear surface of the housing, and the grill body has one end It is formed to protrude more in the outdoor direction than the other end, an inclined surface is formed between one end and the other end of the grill body, and the extension length of the grill blade is characterized in that one end is longer than the other end.

According to the problem solving means of the present invention as described above, various effects including the following can be expected. However, the present invention is not established when all of the following effects are exerted.

According to the present invention, in introducing outside air through the rear grill or exhausting the bet, since the outside air and the bet are not mixed, ventilation is effected efficiently.

In addition, since the handrail can be avoided through the inclined surface formed on the grill body, the total heat exchanger can be installed at a height suitable for use by the user among the walls.

1 is a plan view showing the internal structure of a conventional total heat exchanger;
2 is a perspective view showing a state in which the total heat exchanger of the present invention is installed on a window frame;
3 is a perspective view showing a direction in which the total heat exchanger of FIG. 2 is installed on a window frame;
4 is an exploded perspective view of the total heat exchanger of FIG. 2;
5 is a perspective view of the inner panel of FIG. 4;
6 is a perspective view of the total heat exchange element of FIG. 4;
7 is a perspective view of the HEPA filter unit of FIG. 4;
8 is a perspective view of the lower grill panel of FIG. 4;
Figure 9 is a perspective view of the rear grill of Figure 4;
10 is a longitudinal cross-sectional view of the total heat exchanger of FIG. 2 viewed from the side;
11 is a longitudinal cross-sectional view of the total heat exchanger of FIG. 2 viewed from the front;
12 is a longitudinal sectional view for showing the shape of a circular rib surrounding an exhaust motor of the present invention;
13 is a view showing the air flow during normal mode operation of the present invention;
14 is a view showing the air flow during the bypass mode operation of the present invention;
15 is a diagram showing the air flow when the air cleaning mode of the present invention is operated.

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

Figure 2 is a perspective view showing a state in which the total heat exchanger of the present invention is installed on the window frame, Figure 3 is a perspective view showing the direction in which the total heat exchanger of Figure 2 is installed on the window frame, Figure 4 is an exploded perspective view of the total heat exchanger of Figure 2, Figure 5 is a perspective view of the inner panel of FIG. 4, FIG. 6 is a perspective view of the total heat exchange element of FIG. 4, FIG. 7 is a perspective view of the HEPA filter unit of FIG. 4, FIG. 8 is a perspective view of the lower grill panel of FIG. 4, and FIG. A perspective view of the rear grill, FIG. 10 is a longitudinal cross-sectional view of the total heat exchanger of FIG. 2 viewed from the side, FIG. 11 is a longitudinal cross-sectional view of the total heat exchanger of FIG. 2 viewed from the front, FIG. 12 is a shape of a circular rib surrounding the exhaust motor of the present invention Fig. 13 is a view showing the air flow during normal mode operation of the present invention, Fig. 14 is a view showing the air flow during bypass mode operation of the present invention, Figure 15 is a view showing the air flow of the present invention This is a diagram showing the air flow when operating in the clean mode.

Referring to Figures 2 and 3, the total heat exchanger 10 of the present invention can be installed inside the wall forming the side of the building, in particular, can be installed to form a part of the window frame (20). 2 shows that the total heat exchanger 10 of the present invention is installed on the window frame 20, and the front side is the indoor side and the rear side is the outdoor side in the drawing. Referring to FIG. 3, an installation space 30 penetrating indoors and outdoors is formed in the window frame 20, and a guide 40 for inserting the total heat exchanger 10 or guiding air flow is installed at the upper and lower parts of the installation space 30. It can be. The total heat exchanger 10 of the present invention may be installed by being inserted in the installation space 30 formed on the window frame 20 from indoor to outdoor direction. For installation, upper and lower portions of the window frame 20 and the total heat exchanger 10 may be formed with rails that can be assembled with each other.

Figure 4 shows an exploded view in the front and rear directions of the total heat exchanger (10). Referring to this, the inner panel 160 is assembled on the front side of the housing 20, and the total heat exchange element 130, the HEPA filter unit 140, and the lower grill panel 150 are on the front side 163 of the inner panel 160. ) is inserted, and then the front panel 110 is assembled and finished. And the rear grill 170 is assembled at the rear of the housing 20.

The inner panel 160 is shown in detail in FIGS. 2 and 5 . Referring to this, the inner panel 160 is formed of a front surface 163 and a thin side surface 164, and the side surface 164 has a first inlet portion 161 and a second inlet portion 161 to allow indoor air to flow into the housing 20. The inlet portion 162 may be spaced apart in the longitudinal direction and concave in a groove shape. That is, the first inlet 161 and the second inlet 162 may be formed in a shape penetrating the side surface 164 . A display unit 165 indicating a control state may be formed on the front surface of the inner panel 160, and an element accommodating hole 166 and a filter so that the total heat exchange element 130 and the HEPA filter 145 can be inserted and removed, respectively. Accommodating holes 167 may be disposed in the longitudinal direction and formed through. The element accommodating hole 166 may be formed in a shape corresponding to one surface of the total heat exchange element 130, and a first inlet 161 is formed on the side of the element accommodating hole, so that air introduced from the room is stored in the element. Through the space formed by the hole 166 it can flow into the flow path of the total heat exchange element 130. The side of the filter accommodating hole 167 is preferably formed in a closed shape, so that the HEPA filter 145 can be installed and replaced through the filter accommodating hole 167, and at the same time, the HEPA filter 145 Unnecessary exposure can be avoided. In addition, a third inlet 168 may be formed through the lower portion of the filter accommodating hole 167 . It is preferable that the second inlet 162 is formed on the side of the third inlet 168, and through these configurations, indoor air can flow into the housing 20 and separate from the total heat exchange element 130. euros can be formed.

6 shows a total heat exchange element 130. The total heat exchanger 10 is inserted into the housing 20 through the element accommodating hole 166 described above. The total heat exchange element 130 is generally inserted and installed in the housing 20 of the total heat exchanger 10 in a direction in which no flow path is formed, but the present invention is characterized in that it is inserted in a direction in which one of the crossing flow paths is formed. to be Accordingly, the element installation rib 132 supporting the edge 130a formed in the flow direction may be formed in the housing 20 . In addition, a pre-filter 131 may be mounted on one surface of the total heat exchange element 130 through which the bet is introduced. In addition, an element handle 131a may be formed on the surface where the flow path is formed so that the total heat exchange element 130 can be inserted and removed in the direction of the flow path, and the element handle 131a can be formed on the pre-filter 131, , It may be formed in a concave groove shape in the frame of the pre-filter 131.

7 shows the HEPA filter unit 140. The HEPA filter unit 140 is configured to purify air supplied to the room, and is inserted into the housing 20 through the above-described filter accommodating hole 167. It also includes a drawer-shaped filter case 141 in which a HEPA filter 145 is accommodated. A filter flange 143 may protrude outward from an upper end of the filter case 141 so as to be accommodated and supported by a filter rail 142 formed in the housing 20 in a sliding manner.

8 shows a lower grill panel 150, and a lower grill 151 is formed in a shape of a plurality of holes on one side of the lower grill panel 150. Bet may flow into the housing 20 through the lower grill panel 150 .

9 shows a rear grill 170, and the rear grill 170 is installed on the rear surface of the housing 20 and is formed to introduce outside air or exhaust air. The rear grill 170 is formed in a shallow box shape, a grill body 171 disposed to face the rear surface of the housing 20, and grill wings 172 extending downward from both sides of the grill body 171 includes In addition, the location of the inlet may be separated using a partition 175 as shown in the drawing so that the introduced outdoor air and the exhausted indoor air do not mix. More specifically, the grill wings 172 are formed on the entire side surface, but the exhaust hole 174 is formed on one side of the upper part and the outside air hole 173 is formed on the other side of the lower part in FIG. 9 (b), and the exhaust hole The space in which the 174 and the outside air hole 173 are formed may be blocked with a partition 175 so that outside air and exhaust air are spatially separated and ventilated. Accordingly, a first flow path connected to the outside air hole 173 of the rear grill 170 and the outside air room 210 and a second flow path connected to the exhaust hole 174 of the rear grill 170 and the exhaust room 230 are It can be spatially separated and formed separately. A central portion including a storage space between the first passage and the second passage of the rear grill 170 may be formed to be spatially separated from the first passage and the second passage. That is, the first passage, the second passage and the central portion may be formed by the partition 175 . A part of the exhaust motor 233 may be accommodated in the central part of the part separated by the partition 175 for compact installation. In addition, the present invention can be installed on the window frame 20, the handrail (A) can be formed beyond the window frame 20. In addition, it is preferable that the total heat exchanger 10 is formed in the center or middle upper part of the window frame 20 for efficiency and operation convenience of the total heat exchanger 10, and interference between the handrail and the rear grill 170 may occur during installation. . Therefore, the present invention makes the upper part of the rear grill 170 protrude more than the lower part as shown in FIG. interference can be avoided.

10 and 12 show longitudinal cross-sectional views of the present invention. With reference to this, the housing 20 and the internal installation configuration will be described in detail. The inner space of the housing 20 may be formed with an outside air room 210 into which outside air is introduced, an air supply room 220 through which outside air is discharged indoors, and an exhaust room 230 through which indoor air is discharged outdoors. The outside air room 210 and the air supply room 220 are disposed with the total heat exchange element 130 interposed therebetween, and the exhaust room 230 is disposed at the other corner side of the total heat exchange element 130. On the other hand, in the housing 20 of the present invention, unlike the case of a general diameter, the space in which the bet is introduced is not secured or formed in a very narrow space, which means that in the conventional total heat exchanger 10, the total heat exchange element 130 is inside the housing 20 Compared to being formed diagonally, the present invention heat exchanges with one side of the housing 20 so that the bet directly flows into the total heat exchange element 130 while entering the inside of the housing 20 from the outside of the housing 20 without a separate space. This is because one side of the element 130 is arranged side by side. Accordingly, the total heat exchanger 10 can be compactly formed by significantly reducing the width.

In the outside air room 210, the outside air introduced through the outside air hole 173 enters through the outside air side damper 211 that can be opened and closed, and the outside air pre-filter 212 for filtering out foreign substances or pests contained in the outside air may be installed. there is. Air that has passed through the outside air pre-filter 212 may be disposed to flow into the air supply room 220 through the HEPA filter unit 140 and the total heat exchange element 130 .

An air supply motor 221 and an air supply fan 222 are installed in the air supply room 220 to suck air into the air supply room 220 . A centrifugal fan may be used as the air supply fan 222, air is sucked in by an impeller, and the air flows and is discharged through a flow path formed outside the impeller. A fan flange 222a is formed at the discharge side end of the air supply fan 222 . The fan flange 222a is a configuration for installing the air supply fan 222 to the fan installation panel 223. The fan flange 222a has a structure that can be inserted along the fan installation rail 223a formed on the fan installation panel 223 as shown in the enlarged picture of FIG. 10 .

In addition, the air discharged from the air supply room 220 is supplied to the room through the noise room 225. A typical total heat exchanger 10 has a structure in which the air supply room 220 is directly discharged to the outside of the housing 20, but the present invention is configured to discharge from the air supply room 220 through the noise room 225. In addition, by setting the air discharge position of the air supply fan 222 and the position of the air supply grill 226 at a diagonal position so as to be far away from the noise room 225, a passage of sufficient length was allowed to pass through until the air supply. This is a configuration for inducing interference of noise waves by changing the flow direction of air, and as a result, air can be supplied to the room through holes formed in the air supply grill 226 in a state where the noise amplitude is reduced.

Meanwhile, a panel installation rail 224 may be formed in the housing 20 to allow the fan installation panel 223 to be installed. Referring back to the enlarged portion of FIG. 10 , panel installation rails 224 having a shape capable of supporting both ends of the fan installation panel 223 are formed extending along the width direction (based on the front surface) of the housing 20, A noise room 225 may be formed by inserting the fan installation panel 223 along the panel installation rail 224 . In addition, by inserting the fan installation panel 223 into the rail, additional insulation and noise reduction materials can be attached to the fan installation panel 223, so it can be installed with a simple configuration without additional configuration for noise and insulation, and noise reduction And it can increase the insulation efficiency.

In the exhaust room 230, an exhaust side damper 231 that opens and closes an outlet communicating with the exhaust hole 174, a bypass damper 232 that opens and closes between the outside air room 210 and the exhaust room 230, and an impeller An exhaust fan 234 including an exhaust fan 234 and an exhaust motor 233 driving the exhaust fan 234 may be included. Like the general air supply fan 222 of the present invention, the general total heat exchanger 10 is installed so that the direction of air discharged by the impeller coincides with the flow direction of the total heat exchange element 130. However, the exhaust fan 234 and the exhaust motor 233 of the present invention may be arranged to discharge air perpendicular to the direction of the flow path of the total heat exchange element 130 . That is, it is installed in a direction perpendicular to the air supply fan 222 and the air supply motor 221 as shown in the drawing. By this installation direction, the space for installing the motor can be greatly reduced.

On the other hand, when the installation direction of the exhaust fan 234 and the exhaust motor 233 is taken as described above, the motor completely contacts the outdoor side, resulting in a structure vulnerable to dew condensation. In order to compensate for this, the present invention has a heat insulation structure capable of protecting the motor. Referring to FIG. 12 in which a portion X of FIG. 10 is enlarged, a circular rib 235 may protrude in a direction surrounding the exhaust motor 233 in a casing surrounding the impeller and forming a flow path. In addition, an airtight room 235a may be formed by attaching an insulating material formed in a tape shape to the outside of the circular rib 235 to seal the space in which the exhaust motor 233 is formed. By forming an adiabatic space with the sealed room 235a, it is possible to prevent dew condensation on the exhaust motor 233 due to a temperature difference between the outside and the inside of the housing 20. This is a characteristic technology that solves the condensation problem that may occur as the window frame 20 type total heat exchanger 10 of the present invention is installed so that one side is directly exposed to the outdoors, unlike the general total heat exchanger 10.

In addition, FIG. 11 is an enlarged view of a configuration for attaching and detaching the total heat exchange element 130 and the HEPA filter unit 140. Referring to this, the total heat exchange element 130 can be inserted from indoor to outdoor direction, which is the same direction as the flow path formed inside the total heat exchange element 130. For installation and disassembly, the housing 20 may have an element installation rib 132 protruding and extending into the housing 20 so as to guide and support the four corners formed on the upper and lower parts of the total heat exchange element 130. Therefore, the user can install and remove the total heat exchange element 130 by inserting it along the element installation rib 132 or pulling it out, so that it can be conveniently replaced.

Similarly, a filter flange 143 is formed at the upper end of the filter case 141 of the HEPA filter unit 140, and a filter rail 142 capable of supporting and guiding the filter flange 143 is installed inside the housing 20. It may protrude on the wall and may extend from the indoor to the outdoor direction. Therefore, the user can easily insert and remove the filter case 141 by using the filter handle 144 formed on the front of the filter case 141, and can replace the HEPA filter 145 in the removed state.

Meanwhile, an internal side damper 241 for opening and closing between the outside air room 210 and the lower grill 151 may be further included. The internal side damper 241 is configured to introduce indoor air into the housing 20 without passing through the total heat exchange element 130, and is configured to be opened during bypass mode operation.

In addition, the housing 20 may be formed with first to third insulation rooms 123 as an enclosed space. This is a configuration to compensate for the fact that the total heat exchanger 10 of the present invention is more vulnerable to condensation as it is installed to be directly exposed to the outdoors. The first insulation room 121 is formed on the outdoor side wall of the air supply room 220, the second insulation room 122 is formed on the outdoor side wall where the exhaust fan 234 is installed, and the third insulation room 123 The outer air room 210 and the housing 20 are formed between the controllers formed with the control boards formed below. Here, the controller may be formed to be physically partitioned from other parts in the housing 20 . Therefore, there is an effect of blocking the inside of the housing 20 from the outdoors by the first insulation room 121 and the second insulation room 122, and the third insulation room 123 is installed in the part where electrical components such as boards are installed. There is an effect of preventing condensation more reliably by providing an insulation space. In addition, by inserting and inserting a heat insulating material into the first to third heat insulating rooms 123, the heat insulating effect can be further maximized.

13 to 15 show air flow during normal mode, bypass mode, and air cleaning mode operations, respectively. The normal mode is a mode in which outdoor air and indoor air are ventilated through the total heat exchange element 130, the bypass mode is a mode in which indoor air is exhausted to the outdoors without passing through the total heat exchange element 130, and the air cleaning mode is indoors. This is a mode in which air is supplied to the room again through the total heat exchange element 130.

Referring to FIG. 13, in the normal mode, outdoor air is introduced through the outside air hole 173 of the rear grill 170, and the outside air side damper 211, the outside air pre-filter 212, the HEPA filter 145, and the total heat exchange element ( 130), the air supply fan 222, the noise room 225, and the air supply grill 226 are supplied to the room. In addition, indoor air is introduced into the total heat exchange element 130 through the first inlet 161 on the side of the inner panel 160, and the total heat exchange element 130, the exhaust fan 234, the exhaust side damper 231, It is exhausted to the outdoors through the exhaust hole 174 of the rear grill 170. At this time, the outside air side damper 211 and the exhaust side damper 231 are opened, and the inside side damper 241 and the bypass damper 232 are operated to be closed.

Referring to FIG. 14, in the bypass mode, indoor air is introduced into the housing 20 through the second inlet 162 of the inner panel 160 and the lower grill 151, and the inside damper 241 and the outside air It is discharged to the outdoors through the pre-filter 212, the bypass damper 232, the exhaust fan 234, the exhaust-side damper 231, and the exhaust hole 174 of the rear grill 170. At this time, the inner damper 241, the bypass damper 232, and the exhaust side damper 231 are opened, and the outer air side damper 211 is operated to be closed.

Referring to FIG. 15, in the air cleaning mode, indoor air is introduced into the housing 20 through the second inlet 162 of the inner panel 160 and the lower grill 151, and the HEPA filter 145 and total heat exchange Air is supplied to the room through the element 130, the air supply fan 222, the noise room 225, and the air supply grill 226. In addition, indoor air may be purified and supplied through the HEPA filter 145 and the total heat exchange element 130 . At this time, the inner side damper 241 is opened, and the outer side damper 211 and the bypass damper 232 are operated to be closed.

According to the above configuration, the present invention has the following effects.

First, since one surface on which the flow path of the total heat exchange element 130 is formed is disposed parallel to one surface of the housing 20, a separate space for introducing bets is not required, so that the depth direction length (wall thickness) of the total heat exchanger 10 is not required. length corresponding to the length) can be drastically reduced. Therefore, the total heat exchanger 10 can be installed inside the wall surface.

Second, by providing an independent heat insulation space through the first to third heat insulation rooms 123, condensation that may occur due to exposure to the outdoors can be effectively supplemented.

After the fan noise is reduced through the set material and the noise room 225, air can be supplied to the room, and a structure that can be simply assembled by attaching the noise material to the fan installation panel 223 is provided.

Fourth, by changing the installation directions of the exhaust motor 233 and the exhaust fan 234, the length of the total heat exchanger 10 in the depth direction can be greatly reduced by compact installation. In addition, in order to compensate for the problem of being vulnerable to condensation by changing the installation direction, a circular rib 235 was added to form an airtight room 235a.

Fifth, by the structure of the partition 175 of the rear grill 170 and the structure in which the directions of the outside air hole 173 and the exhaust hole 174 are different, there is an effect that the outside air and exhaust are not mixed, and the rear grill is compact. formed.

Although each detailed configuration has been separately described in the present specification, embodiments that can be derived by combining some configurations also fall within the scope of the present invention.

The above description is only illustrative of the technical idea of the present invention, and those skilled in the art can make various modifications and variations without departing from the essential characteristics of the present invention. The protection scope of should be interpreted by the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

1 Total heat exchanger 2 Housing
3 total heat exchange element 4 bulkhead
5 Blowing fan
10 total heat exchanger 20 window frame
30 installation space 40 guide
110 front panel 120 housing
121 Insulation Room 1 122 Insulation Room 2
123 3rd insulation room 130 Total heat exchange element
130a corner 131 bet prefilter
131a element handle 132 element installation rib
140 HEPA filter unit 141 filter case
142 filter rail 143 filter flange
144 Filter handle 145 HEPA filter
150 lower grill panel 151 lower grill
160 inner panel 161 first inlet
162 2nd inlet 163 front
164 Side 165 Display
166 element storage hole 167 filter storage hole
168 Third inlet 170 Rear grill
A handrail 171 grill body
171a slope 172 grill wing
173 Outside air hole 174 Exhaust hole
175 Partition 210 Outside air room
211 Outside air side damper 212 Outside air pre-filter
220 Air Supply Room 221 Air Supply Motor
222 supply fan 222a fan flange
223 Fan installation panel 223a Fan installation rail
224 Panel installation rail 225 Noise control
226 Air Supply Grill 230 Exhaust Room
231 Exhaust Side Damper 232 Bypass Damper
233 exhaust motor 234 exhaust fan
235 circular rib 235a sealed room
241 inner side damper

Claims (7)

In a total heat exchanger in which a total heat exchange element is installed in a housing and heat is exchanged between ventilated air through the total heat exchange element,
The housing includes an outside air room in which outdoor air flows into the housing to form a flow path leading to the total heat exchange element, an air supply room connected to the outside air room through the total heat exchange element and forming a flow path through which air is supplied to the room, and It is partitioned to include an exhaust room connected to the indoor through the total heat exchange element and forming a flow path through which indoor air is exhausted to the outdoors.
The housing is installed so that the front side is in contact with the indoor and the rear side is in contact with the outdoors,
A part of the outside air room and the exhaust room communicates with the outdoors through the rear surface of the housing,
Further comprising a rear grill installed on the rear surface of the housing,
An outside air hole through which outdoor air flows into the housing and communicates with the outside air room and an exhaust hole through which indoor air is discharged to the outside and communicates with the exhaust room are formed through the rear grill,
A first passage connected to the outside air hole of the rear grill and the outside air room, a second passage connected to the exhaust hole of the rear grill and the exhaust room, and a storage space between the first passage and the second passage of the rear grill A partition is formed on the inside of the rear grill so that the central portions of the branches are spatially separated from each other and formed separately,
The rear grill includes a grill body disposed to face the rear surface of the housing and extending in one direction, and grill wings extending from both sides of the grill body toward the rear surface of the housing,
The outside air hole is formed so that outdoor air passes through the side surface of the rear grill from outside and flows into the space between the grill body and the rear surface of the housing and flows into the first flow path,
The exhaust hole is formed so that indoor air flows into the space between the grill body and the rear surface of the housing, passes through the side surface of the rear grill through the second flow path, and is discharged to the outdoors.
delete According to claim 1,
The outside air hole and the exhaust hole are total heat exchangers, characterized in that formed on different surfaces of the rear grill.
According to claim 1,
The outside air hole and the exhaust hole are heat exchangers, characterized in that formed spaced apart from each other at one end and the other end of the rear grill.
According to claim 1,
The outside air hole is formed in the grill wing formed on one side of the grill body,
The total heat exchanger, characterized in that the exhaust hole is formed in the grill wings formed on the other side of the grill body.
According to claim 5,
The outside air hole is formed at one end of the grill wing,
The exhaust hole is a total heat exchanger, characterized in that formed at the other end of the grill blade.
According to claim 1,
Heat exchanger, characterized in that one end of the grill body protrudes more in the outdoor direction than the other end, an inclined surface is formed between one end and the other end of the grill body, and the extension length of the grill blade is longer than the other end.

Images