KR20180051141A - Total heat exchanger - Google Patents

Abstract

The present invention relates to a total heat exchanger, and more particularly, to a total heat exchanger provided with a bypass pathway. According to embodiments of the present invention, a total heat exchanger may include: a housing; a heat exchanging unit; an upper air guide; a barrier; and a flow path conversion damper. The housing may have a vent hole and an air supply hole formed on one side thereof, and an external air hole and an exhaust hole may be formed on opposite the other side thereof. The heat exchanging unit may include a heat exchanger element received in the housing and configured to heat exchange between the air sucked through the external air hole and the air sucked through the vent hole. The upper air guide may form a bypass flow path on an upper side of the heat exchange unit, the bypass flow path communicating the vent hole with the exhaust hole. The barrier may divide space which in communication with the vent hole into upper and lower spaces so that the upper space communicates with the bypass flow path and the lower space communicates with the total heat exchanging element. The flow path conversion damper may allow the vent hole to communicate with the upper space or the lower space of the barrier. The flow path conversion damper may include: a shield plate rotatable about a rotary axis; and a duct part passing through the barrier and having one end thereof connected to the shield plate to rotate with the shield plate.

Description

Total Heat Exchanger {TOTAL HEAT EXCHANGER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an overall heat exchanger, and more particularly, to an overall heat exchanger having a bypass path.

Generally, a ventilation unit is installed inside a building to discharge polluted air from the room to the outside and to supply fresh air to the indoor space.

In the case of a single generation such as a public room, a school room, a sickroom, etc., a single generation such as an apartment or a villa, indoor air may be rapidly polluted and it is necessary to use a ventilation device. Thus, fresh outside air is ventilated The pollution level is lowered.

Particularly, in recent years, a large number of heat recovery type ventilators provided with heat exchange elements capable of minimizing the temperature difference by mutually exchanging heat between indoor air and outdoor air have been installed.

On the other hand, from mid-March to mid-June, mid-September to mid-November (commonly referred to as mid-term), based on domestic standards, Since the heating load tends to increase compared to the introduction of simple outside air or general (bypass) ventilation, ordinary (bypass) ventilation through introduction of simple outside air rather than total heat exchange ventilation can save cooling and heating energy.

In particular, outdoor air cooling through the introduction of such outdoor air is effective for school classroom or sickroom where the amount of heating and cooling energy is large, so that efficient cooling and heating energy saving is possible.

In addition, when indoor air needs to be discharged suddenly as in the case of a fire, the indoor air can be quickly discharged through the bypass passage since the moving speed of the air is significantly reduced when the indoor air passes through the heat exchanger.

An object of the present invention is to provide an all-pass heat exchanger which is easy to switch between an entire heat exchange mode and a bypass mode.

The total enthalpy heat exchanger according to an embodiment of the present invention includes: a housing; A heat exchange unit; Upper air guide; Barrier; And a channel conversion damper.

The housing may have a ventilation opening and an air supply opening formed on one side thereof, and an external device and an exhaust opening may be formed on the other side opposite to the one side. The heat exchange unit may include an electric heat exchange element accommodated in the housing and exchanging heat between the air sucked into the external mechanism and the air sucked into the vent hole. The upper air guide may form a bypass flow path communicating the vent hole with the vent hole above the heat exchange unit. The barrier may be divided into upper and lower spaces communicating with the ventilating opening so that the upper space communicates with the bypass flow passage and the lower space communicates with the total heat-exchanging element.

The passage-changing damper can communicate the ventilation port with the upper space or the lower space of the barrier. Wherein the flow path-changing damper comprises: a shielding plate rotatable about a rotation axis; And a duct portion passing through the barrier and having one end connected to the shielding plate and rotating together with the shielding plate.

The duct portion may have a curved shape having a predetermined curvature.

The center of curvature of the duct portion may be the rotation axis.

The passage-changing damper may be installed in the ventilating opening.

In the bypass mode, the shield plate shields the ventilation hole, and the duct part can communicate the ventilation space and the upper space of the barrier.

In the total heat exchange mode, the shield plate opens the ventilation hole, and the other end of the duct part opposite to the general part can be shielded.

In the total heat exchange mode, the other end of the duct portion may be shielded by being in contact with the inner surface of the upper air guide.

The total enthalpy heat exchanger according to an embodiment of the present invention may further include a driving motor for rotating the rotary shaft. The driving motor may be installed in the upper air guide.

The barrier may include a duct guide portion, and the duct portion may be inserted into the duct guide portion.

One end of the duct guide may be connected to the barrier and the other end may be spaced apart from the inner surface of the upper air guide.

The shield plate may be located below the barrier. And the other end of the duct portion may be located above the bottom surface of the barrier. And the other end of the duct portion may be located in the upper space of the barrier.

The heat exchange unit may further include an upper plate for partitioning the total heat exchange element and the bypass flow path, and the total heat exchange element may be provided below the upper plate.

The barrier may be disposed in contact with the upper plate.

The total enthalpy heat exchanger according to an embodiment of the present invention may further include a frame disposed between the ventilation port and the heat exchange unit, the barrier being provided therein, and a suction port communicating with the ventilation port. The flow path-changing damper may be installed in the suction port.

In the total heat exchange mode, the shield plate opens the suction port, and the other end of the duct portion opposite to the central portion can be shielded by being in contact with the inner surface of the frame.

According to a preferred embodiment of the present invention, the total heat exchange mode and the bypass mode can be easily switched by the flow path conversion damper.

Further, the shield plate and the duct portion rotate together, and only the single rotation axis is controlled, so that the total heat exchange mode and the bypass mode can be easily switched.

The upper air guide having a single structure is advantageous in that the bypass flow path formation, the heat exchange unit guide function, and the partitioning of the inner space of the housing can be performed.

Further, an opening is formed in the bottom cover, so that the user can easily install or remove the heat exchange unit in the total enthalpy heat exchanger installed in the ceiling.

Further, the bypass flow path is located above the heat exchange unit, and the user can easily install or remove the heat exchange unit in the total enthalpy heat exchanger provided on the ceiling.

1 is a perspective view showing an outer appearance of an total enthalpy heat exchanger according to an embodiment of the present invention.
FIG. 2 is a perspective view of the total enthalpy heat exchanger of FIG. 1, with the top cover removed.
FIG. 3 is a perspective view of the total enthalpy heat exchanger of FIG. 2, with the upper air guide removed.
4 is an exploded perspective view of the total enthalpy heat exchanger according to an embodiment of the present invention.
5 is a plan view of the total enthalpy heat exchanger of FIG.
6 is a perspective view of the heat exchange unit.
7 is a bottom view of the upper air guide.
8 is a view for explaining the constitution of the upper air guide.
9 is a perspective view of the flow path-changing damper.
10 is a cross-sectional view of the passage-changing damper of FIG.
11 is a sectional view of the flow guide in the total heat exchange mode.
12 is a sectional view of the flow guide in the bypass mode.
Fig. 13 is a sectional view taken along the line AA in Fig. 2 in an all-heat exchange mode.
14 is a sectional view taken along line AA in Fig. 2 in the bypass mode.
15 is a control block diagram of the total enthalpy heat exchanger according to an embodiment of the present invention.

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

1 is a perspective view showing an outer appearance of an total enthalpy heat exchanger according to an embodiment of the present invention.

Referring to FIG. 1, the total enthalpy heat exchanger 1 according to an embodiment of the present invention may include a housing 10. The housing 10 may be in the form of a box and a receiving space may be formed therein in which an internal component such as the heat exchange unit 30 can be installed.

The housing 10 may be formed of a metal material to secure rigidity, but is not limited thereto. A bracket or the like may be attached to the outside of the housing 10 for convenience of installation.

The housing 10 may include a top cover 11, a side cover 12 and a bottom cover 13. The top cover 11 may be located on the upper side of the side cover 12 and the bottom cover 13 may be located on the lower side of the side cover 12. [ The top cover 11 and the bottom cover 12 can face each other.

The bottom cover 13 and the side cover 12 may be integrally formed with each other. The top cover 11 is desirably detachably attached to the side cover 12 for the convenience of replacement of internal parts. It goes without saying that the top cover 11 may be integrally formed with the side cover 12. [

The side cover 12 may be integrally formed, or may be formed by combining two or more side covers.

The side cover 12 may be provided with an external device 17 for receiving outdoor air OA and a ventilation opening 15 for receiving indoor air RA (see FIG. 4). An exhaust port 16 through which exhaust air (EA) is discharged and a supply mechanism 18 (see FIG. 4) through which supply air (SA) is discharged may be formed in the side cover 12.

The outside air may be outdoor air. The outside air temperature is generally low and the carbon dioxide content may be low. On the other hand, the indoor air temperature may be relatively high due to the body temperature of people working in the room. In addition, the content of carbon dioxide may be high due to the respiration of people.

That is, the total enthalpy heat exchanger 1 can discharge indoor air to the outside through the ventilation opening 15 and the ventilation opening 16, and supply fresh outdoor air to the indoor space through the external mechanism 17 and the air supply mechanism 18.

The outer cover 17 and the air outlet 16 may be formed on one side of the side cover 12 and the ventilation opening 15 and the air supply opening 18 may be formed on the other side opposite to the one side.

The ventilation port 15 may be arranged so as to face the external mechanism 17 and the ventilation port 16 may be arranged to face the air supply mechanism 18.

At least one of the ventilation opening 15, the exhaust opening 16, the external mechanism 17, and the air supply mechanism 18 may be provided with a damper. For example, a ventilation damper 15a may be installed in the ventilation opening 15. [ The exhaust port 16 may be provided with an exhaust damper 16a. The outer mechanism 17 may be provided with an outside air damper 17a. The air supply mechanism 18 may be provided with an air supply damper 18a.

The ventilation hole 15 may be provided with a flow path-changing damper 41 to be described later.

At this time, it is preferable that the dampers installed in the external mechanism 17 and the ventilation opening 15 through which the air is sucked are actuated dampers. The electric damper may include a vane for adjusting an opening degree of a passage through which air flows according to a rotation angle, and a damper actuator for operating the vane. The control unit 59 can control the opening degree of each damper by operating the damper actuator. An increase in the damper opening may mean that the damper is open. A decrease in the damper opening degree may mean that the damper is closed.

By operating the damper actuator under the control of the control unit 59, the rotational angle of the vane can be controlled. Thereby, the suction of the air through the external mechanism 17 and the ventilation port 15 can be controlled.

The damper installed in the exhaust port 16 through which the air is discharged and the air supply mechanism 18 is preferably a back draft damper (BDD). Therefore, air can be prevented from being sucked through the air outlet (16) and the air supply mechanism (18).

Meanwhile, the controller 59 may be installed in the housing 10. More specifically, the control unit 59 may be installed in the side cover 12. Fig. The side cover 12 may have an opening for installing a control unit, and the controller 59 may be installed in the opening for installing the control unit. The controller 59 may be installed to protrude inward of the housing 10.

The control unit 59 can be installed on the side surface of the side cover 12 where the ventilation opening 15, the exhaust opening 16, the external mechanism 17 and the air supply mechanism 18 are not formed. For example, when the ventilation opening 15 and the air supply opening 18 are formed on the rear surface of the housing 10 and the external mechanism 17 and the exhaust opening 16 are formed on the front surface of the housing 10, May be installed on the right side or the left side of the housing 10.

The control unit 59 may include a communication unit, an interface unit, an inverter unit, and the like, and it is possible to control the overall operation of the total enthalpy heat exchanger 1.

FIG. 2 is a perspective view of the total enthalpy heat exchanger of FIG. 1, with the top cover removed.

Referring to FIG. 2, the total enthalpy heat exchanger 1 according to an embodiment of the present invention may include an upper air guide 20.

The upper air guide 20 forms a bypass flow path 27 (see FIG. 8) and serves to bypass the heat exchange unit 30 and discharge the indoor air sucked into the ventilation opening 15 to the ventilation opening 16 can do. This will be described in detail later.

The upper air guide 20 may be made of various materials, but it is preferably made of expandable polystyrene (EPS). The foamed polystyrene (EPS) is lightweight and has excellent heat insulation, soundproofness and buffering property, thereby maintaining the heat insulation inside the total enthalpy heat exchanger 1, reducing noise generated in the blowers 16b and 18b (see FIG. 4) There is an advantage that the internal constitution of the total enthalpy heat exchanger 1 can be protected from the impact of the total heat exchanger 1.

The upper air guide 20 can be manufactured from a single injection-molded material and can be manufactured into various shapes.

The upper surface of the upper air guide 20 can be in contact with the bottom surface of the top cover 11. That is, the upper surface of the upper air guide 20 may coincide with the upper surface of the side cover 12.

At least a part of the side surface of the upper air guide 20 can contact the inner surface of the side cover 12. [

The total height of the upper air guide 20 may be the same as the distance between the upper surface of the bottom cover 13 and the bottom surface of the top cover 11. [

FIG. 3 is a perspective view of the total enthalpy heat exchanger of FIG. 2 with the upper air guide removed, FIG. 4 is an exploded perspective view of the total enthalpy heat exchanger according to an embodiment of the present invention, and FIG. 5 is a plan view of the total enthalpy heat exchanger of FIG.

Referring to FIGS. 3 and 5, the total enthalpy heat exchanger 1 according to an embodiment of the present invention may include a heat exchange unit 30. The heat exchange unit (30) can mutually exchange heat between the outside air and the room air.

The heat exchanging unit 30 may be substantially rectangular parallelepiped or cuboidal. The heat exchange unit (30) can be installed in the housing (10). More specifically, the heat exchange unit 30 may be located below the upper air guide 20. [

The height of the heat exchange unit (30) may be lower than the height of the inner space of the housing (10). This is for forming the bypass flow path 27 by locating the upper air guide 20 on the upper side of the heat exchange unit 30.

The heat exchange unit 30 can be installed at an angle to the side surface of the heat exchange unit 30 without being parallel to the side cover 12. [ Preferably, the heat exchanging unit 30 may be arranged such that its side faces the side cover 12 by about 45 degrees.

As the heat exchange unit 30 is installed obliquely, the inner space of the housing 10 includes a ventilation space 51 communicating with the vent 15, an exhaust space 52 communicating with the vent 16, an external device 17, And an air supply space 54 communicating with the air supply mechanism 18 and the air supply space 54 communicating with each other.

The ventilation space 51, the exhaust space 52, the outside space 53 and the air supply space 54 may be partitioned from each other by the upper air guide 20 and the heat exchange unit 30. [ Thus, a duct Duct can be formed inside the housing 10. [ At this time, the duct may mean a passage through which sucked air flows and is discharged.

The duct has an outdoor-indoor duct in which air is sucked by an external mechanism (17), air is discharged to a supply mechanism (18) for supplying the outside air to the room, and indoor air is sucked by the ventilation opening (15) And an indoor-outdoor duct through which air is discharged to an exhaust port 16 for exhausting the indoor air to the outside.

The indoor-outdoor duct may include a ventilation space 51 and an exhaust space 52, and the outdoor-indoor duct may include an outside space 53 and an air supply space 54.

The indoor-outdoor duct and the outdoor-indoor duct share the heat exchange unit (30), so that heat exchange between the air flowing into each duct and the heat exchange unit (30) can occur. To this end, the outer mechanism 17 and the air supply mechanism 18 may be arranged to be staggered from each other, and the ventilation opening 15 and the ventilation opening 16 may be staggered from each other. That is, the heat exchange unit 30 may be disposed at an intersection area of the indoor-outdoor duct and the outdoor-indoor duct.

However, the indoor-outdoor duct may be provided with a channel-changing damper 41 to be described later so that the air flowing into the indoor-outdoor duct can be controlled not to exchange heat with the outdoor air by bypassing the heat-exchanging unit 30.

At least one filter (32) may be provided on the side surface of the heat exchange unit (30). The filter 32 may be installed in contact with the heat exchange unit 30, or may be provided separately.

The filter 32 may filter the foreign substances contained in the air and purify the air.

For example, the filter 32 may be provided on the side of the ventilation space 51, the side of the outside air space 53, and the side of the air supply space 54, respectively, in the circumferential surface of the heat exchange unit 30. Accordingly, the indoor air sucked through the ventilating opening 15 passes through the filter 32 installed on the side of the ventilating space 51, is purified, and then can be introduced into the heat-exchanging unit 30. The outdoor air sucked through the external mechanism 17 is purified by the filter 32 installed on the side surface of the external space 53 and flows into the heat exchange unit 30. The outdoor air is taken out from the heat exchanger 30, The filter 32 may be cleaned again and discharged to the air supply mechanism 18.

The filter 32 may be a variety of known filters such as a nonwoven filter, a HEPA filter, and the like. The plurality of filters 32 provided on each side of the heat exchange unit 30 may be different kinds of filters. For example, the filter 32 on the side of the air supply space 54 may be a HEPA filter which is a high clean filter, and the filter 32 on the side of the ventilation space 51 or the filter 32 on the side of the outside space 53 may be a non- .

The total enthalpy heat exchanger 1 according to an embodiment of the present invention may include an exhaust blower 16b and a blower 18b for an air supply.

The exhaust blower 16b and the air supply blower 18b may be a blower.

The blower for blowing 16b may be installed in the exhaust space 52 and the blower for blower 18b may be installed in the air supply space 54. [

The exhaust blower 16b may be provided so as to communicate with the vent 15 and the vent 16. [ The exhaust blower 16b can suck indoor air through the ventilation opening 15 and discharge indoor air having passed through the heat exchange unit 30 or the bypass flow passage 27 to the ventilation opening 16. [

The air supply blower 18b may be provided so as to communicate with the external mechanism 17 and the air supply mechanism 18. The air supply blower 18b sucks outdoor air through the outer mechanism 17 and discharges the outdoor air that has passed through the heat exchange unit 30 to the air supply mechanism 18. [

The control unit 59 can control on and off the exhaust blower 16b and the air supply blower 18b respectively and control the flow rate of the air by controlling the operating frequencies of the blowers 16b and 18b.

The control unit 59 may be installed in the outside space 53, but is not limited thereto. Since the ventilation space 51 is provided with the flow guide 40 and the exhaust space 52 is provided with the exhaust blower 16b and the air supply space 54 is provided with the air supply blower 18b, (59) is preferably installed in the outside space (53).

The total enthalpy heat exchanger 1 according to an embodiment of the present invention may include a heating heater 34.

The heating heater (34) can be installed in the outside space (53).

The heating heater (34) can heat the outdoor air sucked by the external mechanism (17). For example, the temperature of outdoor air may be very low in winter, and heat exchange with indoor air in the heat exchange unit 30 may not be enough. Therefore, the cold outdoor air is discharged to the air supply mechanism 18, so that the indoor temperature can be excessively lowered.

In order to prevent this, the outdoor air sucked into the external mechanism 16 is first heated by the heater 34 and then exchanged with the indoor air in the heat exchanging unit 30 so that the temperature of the air supplied to the air supply mechanism 18 Can be kept warm.

The control unit 59 can control the on / off state of the heating heater 34 and adjust the temperature of the heating heater 34. [

The total enthalpy heat exchanger 1 according to the present embodiment may include an air guide coupling portion 19.

The upper air guide 20 can be coupled to the air guide engaging portion 19. In more detail, the air guide coupling portion 19 can be coupled with the housing coupling portion 29 (see Fig. 8) of the upper air guide 20.

The air guide engaging portion 19 can be disposed between the exhaust space 52 and the air supply space 54. [ When the air guide engaging portion 19 and the housing engaging portion 29 are engaged with each other, it can serve as a barrier for partitioning the exhaust space 52 and the air supply space 54.

The air guide engaging portion 19 may be provided with a heat exchanging unit guide portion 19b. The heat exchange unit guide portion 19b can be in contact with the vertical edge of the heat exchange unit 30. [ In more detail, the heat exchange unit guide portion 19b can be in contact with the supporter 37 (see Fig. 6) of the heat exchange unit 30. As shown in Fig.

The air guide engaging portion 19 may be provided with a depression 19a. The depressed portion 19a and the protruding portion 29a of the housing engaging portion 29 are formed to correspond to each other so that the protruding portion 29a can be fitted to the depressed portion 19a.

The total enthalpy heat exchanger (1) according to an embodiment of the present invention may include a flow guide (40).

The flow guide 40 may be installed in the ventilation space 51. The flow path guide 40 may be provided so as to be in contact with the heat exchange unit 30. [

The flow path guide 40 can guide the indoor air sucked through the ventilation opening 15 to the heat exchange unit 30 or the bypass flow path 27.

The detailed configuration and operation of the flow guide 40 will be described later.

On the other hand, an opening 14 may be formed in the bottom cover 13 of the housing 10. The opening 14 may be an installation space for the heat exchange unit 30. That is, the heat exchange unit 30 can be inserted into or removed from the interior of the housing 10 through the opening 14. Therefore, the shape of the opening 14 may be a rectangular shape corresponding to the shape of the heat exchange unit 30. [

The bottom cover 13 may be provided with a door 14a capable of opening and closing the opening 14.

Generally, since the total enthalpy heat exchanger 1 is installed in the ceiling portion of the room, it is easy for the user to approach from the lower side of the total enthalpy heat exchanger 1. [ The user can open or disconnect the heat exchange unit 30 through the opening 14 by opening the door 14a. This makes it possible to facilitate the inspection, maintenance and replacement of the heat exchange unit (30).

Meanwhile, the total enthalpy heat exchanger 1 according to an embodiment of the present invention may include various sensors. For example, the total enthalpy heat exchanger 1 may include a temperature sensor 65, a carbon dioxide sensor 63, and a humidity sensor 64.

The temperature sensor 65 may include an outdoor temperature sensor 66 for measuring the outdoor temperature and an indoor temperature sensor 67 for measuring the indoor temperature.

The outdoor temperature sensor 66 may be installed in the external device 17 or in the external space 53. The room temperature sensor 67 can be installed in the ventilation opening 15 or the ventilation space 51. [

The carbon dioxide sensor 63 can be installed in the ventilation space 15 or the ventilation space 51 to sense the carbon dioxide content in the room air.

The humidity sensor 64 can be installed in the external device 17 or the external space 53 to sense the humidity of the outdoor air.

The total enthalpy heat exchanger 1 may further include additional sensors as needed in addition to the above sensors.

6 is a perspective view of the heat exchange unit.

6, the heat exchange unit 30 may include an upper plate 35, a lower plate 36, a total heat-exchanging element 38, and a supporter 37.

The total heat exchange element 38 may be provided between the upper plate 35 and the lower plate 36.

In the total heat-exchanging element 38, indoor air and outdoor air can be heat-exchanged. More specifically, the total enthalpy heat exchanging element 38 may be laminated so that a plurality of outer air guide layers and inner guide layers cross each other. The outside air guide layer can communicate the outside air space 53 with the air supply space 54 and the inside air guide layer can communicate with the ventilation space 51 and the exhaust space 52.

Thus, the outdoor air sucked through the outer mechanism 17 flows into the outer air guide layer, and the indoor air sucked through the vent hole 15 flows into the inner guide layer and can be heat-exchanged with each other. Generally, indoor air is heated by body temperature or the like and is higher in temperature than outdoor air, so that the temperature of outdoor air can be increased by the heat exchange.

Thereafter, the indoor air that has been heat-exchanged can be discharged to the discharge port 16, and the heat-exchanged outdoor air can be discharged to the air supply mechanism 18. [ That is, warm outdoor air can be supplied to the room through the air supply mechanism (18).

As described above, the side surface of the heat exchange unit 30 may be provided with at least one filter 32 for purifying the air flowing into the total heat-exchanging element 38.

The upper plate 35 may be located above the total heat-exchanging element 38. [ The upper surface of the upper plate 35 may be the upper surface of the heat exchange unit 30.

The upper plate 35 may be positioned between the bypass flow passage 27 and the total heat-exchanging element 38 to be described later. More specifically, the bypass passage 27 is located above the upper plate 35, and the total heat-exchanging element 38 may be located below the upper plate 35. That is, the upper plate 35 can partition the bypass flow passage 27 and the total heat-exchanging element 38.

Thus, the upper plate 35 can prevent the air flowing into the bypass flow path 27 from flowing into the total heat-exchanging element 38 in the bypass mode.

The lower plate 36 may be located below the total heat-exchanging element 38. The bottom surface of the lower plate 36 may be the bottom surface of the heat exchange unit 30. [

The lower plate 36 may be arranged to face the upper plate 35.

A handle (not shown) may be provided on the bottom surface of the lower plate 36. As described above, the user can separate the heat exchange unit 30 through the opening 14. At this time, when the door 14a is opened, the bottom surface of the heat exchange unit 30 is seen directly through the opening 14, so that the user can easily separate the heat exchange unit 30 by grasping the handle.

The supporter 37 may be a vertical corner portion of the heat exchange unit 30. [ The supporter 37 may be vertically connected to the upper plate 35 and the lower plate 36.

The supporter 37 can contact the unit guides 23a, 23b, 23c (see Fig. 8) of the upper air guide 20. Further, the supporter 37 can be in contact with the heat exchange unit guide portion 19b of the air guide engaging portion 19.

As described above, the user can install the heat exchange unit 30 by inserting it through the opening 14. For example, the heat exchange unit 30 may be in the form of a cube, and four supporters 37 may be provided. At this time, when the user inserts the heat exchange unit 30 into the opening 14, the three unit guides 23a, 23b, and 23c and the one heat exchange unit guide portion 19b are engaged with the four supporters 37 So that the heat exchange unit 30 can be installed at the correct position.

Fig. 7 is a bottom view of the upper air guide, and Fig. 8 is a view for explaining the configuration of the upper air guide.

The housing 10 may be an outer case of the total enthalpy heat exchanger 1 and the upper air guide 20 may be an inner case of the total enthalpy heat exchanger 1. [ Internal apparatuses such as the heat exchange unit 30 and the flow guide 40 may be located inside the upper air guide 20. [

7 and 8, the upper air guide 20 may have a rectangular parallelepiped shape in which a lower surface is opened. The upper air guide 20 may have a shape in which one vertical edge is cut in the above shape.

For example, the upper air guide 20 may have a shape in which the vertical edge on the side of the outer space 53 is cut. The ventilation space 51, the exhaust space 52, and the air supply space 54 are located inside the upper air guide 20, can do.

The lower end of the peripheral surface of the upper air guide 20 can be in contact with the inner bottom surface of the housing 10. That is, the lower end of the circumferential surface of the upper air guide 20 can be in contact with the upper surface of the bottom cover 13. As described above, the outer side surface of the upper air guide 20 can be in contact with the inner side surface of the housing 10. That is, the outer surface of the upper air guide 20 can be in contact with the inner surface of the side cover 12. [

A plurality of holes corresponding to the air vent 15, the air outlet 16, the external mechanism 17, and the air supply mechanism 18 may be formed on the side surface of the upper air guide 20. Depending on the shape of the upper air guide 20, the number of the plurality of holes may be different.

For example, on the side surface of the upper air guide 20, a sub-ventilation opening 25 coinciding with the ventilation opening 15, a sub exhaust opening 26 coinciding with the ventilation opening 16, (28) may be formed. The outer space 53 may be located outside the upper air guide 20 and may not have a sub-outer mechanism.

The upper air guide 20 can form a bypass flow path 27. [

The bypass flow path 27 may refer to a space between the first guide portion 27a and the second guide portion 27a.

The first guide portion 27a and the second guide portion 27b may be elongated in the direction from the ventilation space 51 toward the exhaust space 52. The first guide portion 27a and the second guide portion 27b may be formed parallel to the side of the outer space 53 and the side of the air supply space 54 in the circumferential surface of the heat exchange unit 30. [

The first guide portion 27a and the second guide portion 27b may be disposed to face each other. The first guide portion 27a and the second guide portion 27b may be spaced apart from each other by a predetermined distance. More specifically, the interval between the first guide portion 27a and the second guide portion 27b is set so that the distance between the side of the outer space 53 and the side of the air supply space 54 in the circumferential surface of the heat exchange unit 30 May be the same or shorter.

The first guide portion 27a and the second guide portion 27b may protrude from the bottom surface of the upper air guide 20. At this time, the protrusion height may coincide with the distance between the bottom surface of the upper air guide 20 and the upper surface of the upper plate 35. The bottom surfaces of the first guide portion 27a and the second guide portion 27b can contact the upper surface of the upper plate 35 of the heat exchange unit 30. [

That is, the bypass passage 27 may be an inner passage surrounded by the bottom surface of the upper air guide 20, the first and second guide portions 27a and 27b, and the upper surface of the upper plate 35 .

Thus, the air that has flowed into the bypass passage 27 can pass through the passage formed by the first guide portion 27a, the second guide portion 27b, and the upper plate 35.

At the same time, the first guide portion 27a and the second guide portion 27b serve as barriers for preventing outdoor air flowing into the outside air space 53 and the air supply space 54 from flowing into the bypass flow path 27 Can be performed.

The upper air guide 20 may include at least one unit guide 23a, 23b, 23c.

The unit guides 23a, 23b, and 23c can guide the heat exchange unit 30. [ As described above, the unit guides 23a, 23b, and 23c can be in contact with the supporter 37 of the heat exchange unit 30. [

The upper air guide 20 may include a housing coupling portion 29.

The housing coupling portion 29 is engaged with the air guide coupling portion 19 so that the upper air guide 20 can be fixed to the inside of the housing 10. More specifically, the projecting portion 29a of the housing engaging portion 29 can be engaged with the depression 19a of the air guide engaging portion 19.

The exhaust air space 52 and the air supply space 54 can be partitioned by the housing coupling portion 29 and the air guide engagement portion 19 being engaged. That is, the housing coupling portion 29 and the air guide coupling portion 19 can serve as a partition plate.

The upper air guide 20 can be manufactured by injection molding and is easy to manufacture. The upper air guide 20 is advantageous in that the bypass flow passage 27, the guide of the heat exchange unit 30, and the partition of the inner space of the housing 10 are all possible.

FIG. 9 is a perspective view of the flow path-changing damper, FIG. 10 is a cross-sectional view of the flow path-changing damper of FIG. 9, FIG. 13 is a cross-sectional view taken along the line AA of FIG. 2 in the total heat exchange mode, and FIG. 14 is a cross-sectional view taken along line AA of FIG. 2 in the bypass mode.

Hereinafter, the configuration and operation of the flow path guide 40 will be described with reference to Figs. 9 to 14. Fig.

The flow guide 40 may be installed between the ventilation port 15 and the heat exchange unit 30. [ That is, the flow path guide 40 can be installed in the ventilation space 51.

The flow guide 40 can guide the air sucked into the ventilation port 15 to the total heat-exchanging element 38 or the bypass flow path 27.

The control unit 59 can control the flow path conversion damper 41 of the flow path guide 40 and can control it in the full heat exchange mode or the bypass mode.

In the total heat exchange mode, the flow path guide 40 allows the indoor air sucked into the ventilation opening 15 to flow through the total heat-exchanging element 38 so as to be heat-exchanged with outdoor air supplied to the indoor space through the air supply mechanism 18 do.

In the bypass mode, the flow guide 40 causes indoor air sucked into the ventilation opening 15 to flow into the bypass flow passage 27, and bypasses the total heat-exchanging element 38 to be discharged into the ventilation opening 16 .

The flow path guide 40 may include a flow path-changing damper 41 and a barrier 47. The flow guide 40 may further include a frame 45.

The barrier 47 can divide the space between the ventilation port 15 and the heat exchange unit 30 up and down so that air introduced into the ventilation opening 15 is guided to the bypass flow passage 27 or the total heat exchange element 38 . That is, the upper space 49a of the barrier 47 can communicate with the bypass passage 27, and the lower space 49b of the barrier 47 can communicate with the total heat-exchanging element 38. [

The barrier 47 may be disposed in the ventilation space 51.

The barrier 47 may be formed extending from the flow path-changing damper 41 to the heat exchange unit 30. More specifically, the barrier 47 may extend from the rotary shaft 42 of the flow path-changing damper 41 to the heat exchanging unit 30.

The barrier 47 may be in the form of a free-form surface. Preferably, the barrier 47 includes a first horizontal portion adjacent to the flow path-changing damper 41, a second horizontal portion adjacent to the heat exchange unit 30, and a slope formed between the first horizontal portion and the second horizontal portion Section.

The barrier 47 can be in contact with the upper plate 35 of the heat exchange unit 30. [ The air introduced into the vent hole 15 flows into the bypass passage 27 located on the upper side of the upper plate 35 and the bypass passage 27 located below the upper plate 35 by the barrier 47 being joined to the upper plate 35. [ Exchange element 38, respectively.

At this time, the upper plate 35 may be located above the rotary shaft 42 of the passage-changing damper 41, and the shape of the barrier 47 may be a free-curved surface having a surface that is graded upward.

When the frame 45 is not included in the flow guide 40, the flow path conversion damper 41 can be disposed in the vent 15 and the barrier 47 can be disposed in the heat exchange unit 30 from above the vent 15, As shown in FIG.

When the flow path guide 40 includes the frame 45, the barrier 47 can be disposed inside the frame 45. [ At this time, the flow path-changing damper 41 may be disposed in the ventilation opening 15, but it is preferably provided in the frame 45.

The flow path conversion damper 41 may be installed directly on the ventilation opening 15 or on the frame 45 as shown in FIGS.

The shape of the channel conversion damper 41 is not limited, but it is preferably a circular damper.

The oil line conversion damper 41 may include a rotary shaft 42, a shield plate 43, and a duct portion 44.

The rotary shaft 42 is connected to a drive motor (not shown) to rotate the flow path conversion damper 41. The driving motor may be installed in the frame 45 or the upper air guide 20.

The rotary shaft 42 may be formed long in the horizontal direction, but is not limited thereto.

A shielding plate 43 may be connected to the rotating shaft 42. The rotating shaft 42 and the shielding plate 43 may be integrally formed.

The shape of the shielding plate 43 may be formed to correspond to the shape of the ventilation port 15 or the intake port 46.

The rotary shaft 42 may be connected to one edge of the shielding plate 43. In more detail, the rotary shaft 42 may be connected to the upper side of the shielding plate 43. [ For example, the shielding plate 43 may be in the shape of a disc cut horizontally at an upper portion thereof, and the rotary shaft 42 may be connected to the cut edge portion of the shielding plate 43.

As a result, as the rotary shaft 42 is rotated, the entire shield plate 43 can rotate in the same direction about the rotary shaft 42.

A duct portion 44 may be connected to the shielding plate 43. More specifically, a hole 44a may be formed in the shield plate 43, and a duct portion 44 may be connected to the hole 44a. Thereby, the air introduced into the hole 44a of the shielding plate 43 can flow to the duct portion 44. [ The hole 44a may be a passage on the one end side of the duct portion 44.

The duct portion 44 can be connected to the back surface of the shielding plate 43. At this time, the back surface of the shielding plate 43 may refer to the opposite surface of the shielding plate 43 facing the ventilation opening 15.

As the rotary shaft 42 rotates, the duct portion 44 can be rotated together with the shielding plate 43.

The duct portion 44 may have a curved shape with a constant curvature. More specifically, the duct portion 44 may have a curved shape with a curvature corresponding to a circle whose center of rotation is the center of rotation. That is, the center of curvature of the duct portion 44 may be the rotary shaft 42. At this time, the duct portion 44 may be connected to the shielding plate 43 in a vertical direction.

The duct portion 44 can penetrate the barrier 47. More specifically, one end of the duct portion 44 may be connected to the shielding plate 43 as described above. As the duct portion 44 rotates, the other end may penetrate the barrier 47. Thus, the other-end-side passage 44b of the duct portion 44 can be located in the upper space 49a of the barrier 47.

The barrier 47 is formed with a guide hole corresponding to the sectional shape of the duct portion 44 and the other end of the duct portion 44 can penetrate the barrier 47 through the guide hole.

The rotary shaft 42 and the shielding plate 43 of the flow path damper 41 may be positioned below the barrier 47. [ Therefore, the duct portion 44 of the flow path-changing damper 41 can penetrate the barrier 47 from below the barrier 47.

The barrier 47 may be provided with a duct guide portion 48. The duct guide portion 48 can guide the duct portion 44 that rotates through the barrier 47. The duct guide portion 48 may be bent and formed to correspond to the curvature of the duct portion 44.

One end of the duct guide portion 48 may be connected to the barrier 47 and the other end may be spaced apart from the inner surface of the upper air guide 20 and the inner surface of the frame 45.

The duct guide portion 48 can form a passage into which the duct portion 44 is inserted. The duct portion 44 passing through the barrier 47 can be guided by the duct guide portion 48 and inserted into the upper space 49a of the barrier 47. [

On the other hand, the frame 45 may have a substantially triangular prism shape. The frame 45 may be installed in the ventilation space 51 and a barrier 47 may be provided to guide the air sucked into the ventilation opening 15 to the bypass flow passage 27 or the total heat- .

The frame 45 may have a suction port 46 formed therein. Air introduced into the ventilation port 15 of the housing 10 can be sucked into the suction port 46 of the frame 45. [

The air sucked into the vent hole 15 by the separate member can be guided to the suction port, but it is preferable that the suction port 46 and the vent hole 15 coincide with each other. That is, the inlet port 46 and the ventilation port 15 may be arranged in a line on the same line.

Thus, the indoor air introduced through the ventilation opening (15) can be introduced into the frame (45) through the intake opening (46). The room air introduced through the suction port 46 may flow into the upper space 49a or the lower space 49b of the barrier 47 depending on the state of the flow path conversion damper 41. [

The flow path-changing damper 41 may be installed in the frame 45. More specifically, the oil line conversion damper 41 may be installed at the suction port 46. [ In this case, a separate ventilation damper 15a may be installed in the ventilation opening 15.

The side surface of the frame 45 on the heat exchange unit 30 can be opened. The barrier 47 may be installed inside the frame 45. More specifically, the barrier 47 may be formed to extend from the rotary shaft 42 of the oil line conversion damper 41 installed in the suction port 46 to the upper plate 35 of the heat exchange unit 30. [

The barrier 47 can partition the inner space of the frame 45 up and down. More specifically, the barrier 47 can partition a first space communicating with the intake port 46 and the bypass passage 27, and a second space communicating with the intake port 46 and the total heat-exchanging element 38 . The first space may be the upper space 49a of the barrier 47 and the second space may be the lower space 47b of the barrier 47. [

The flow path damper 41 can communicate the vent 15 with the upper space 49a or the lower space 49b of the barrier 47. [ More specifically, the flow path conversion damper 41 communicates the ventilation hole 15 and the upper space 49a of the barrier 47 in the bypass mode, and the ventilation hole 15 and the lower space 47 of the barrier 47, (49b) can communicate with each other. This will be described in detail below.

In the total heat exchange mode, the duct portion 44 can be shielded as shown in FIG. More specifically, in the total heat exchange mode, the rotary shaft 42 can be rotated in the direction in which the duct portion 44 passes through the barrier 47. The rotary shaft 42 can be rotated until the duct portion 44 abuts against the inner surface of the frame 45. If the frame 45 is not included in the flow guide 40, the rotary shaft 42 may be rotated until the duct portion 44 contacts the inner surface of the upper air guide 20. Thereby, the other-end-side passage 44b of the duct portion 44 can be shielded. Therefore, the air that has flowed into the one end passage 44a of the duct portion 44 can not flow out to the other end passage 44b.

An additional shielding member (not shown) may be provided on the inner surface of the frame 45 or the inner surface of the upper air guide 20 so that the duct portion 44 is shielded against the shielding member. At this time, it is preferable that the shielding member is a material having elasticity such as rubber. The shielding member may be provided at a portion of the inner surface of the frame 45 or the upper air guide 20 corresponding to the other end side passage 44b of the duct portion 44. [

The rotating shaft 42 rotates to shield the duct portion 44 and the shielding plate 43 can open the suction port 46 or the ventilation opening 15. Thereby, the ventilation opening 15 and the lower space 49b of the barrier 47 can communicate with each other, and furthermore, the ventilation opening 15 and the total heat-exchanging element 38 can communicate with each other.

The room air introduced into the ventilation opening 15 in the total heat exchange mode can flow to the total heat exchange element 38 through the lower space 49b of the barrier 47 and the air flow from the total heat exchange element 38 to the outside air Exchanged with the outdoor air introduced from the outdoor heat exchanger 17 and then discharged to the exhaust port 16.

In the bypass mode, the duct portion 44 can be opened as shown in FIG. More specifically, in the bypass mode, the rotary shaft 42 can be rotated in a direction in which the duct portion 44 exits from the barrier 47. The rotary shaft 42 can be rotated until the duct portion 44 completely escapes from the barrier 47. That is, the other-end-side passage 44b of the duct portion 44 may be located above the barrier 47. [

Alternatively, in the bypass mode, the other end of the duct portion 44 may be inserted into the guide hole and positioned between the bottom surface and the top surface of the barrier 47. In this case, the other-end-side passage 44b of the duct portion 44 may be located in the guide hole of the barrier 47. [ That is, the duct portion 44 may not completely penetrate the barrier 47.

In summary, at least a part of the duct portion 44 in the bypass mode may be located above the bottom surface of the barrier 47. Thereby, the duct portion 44 can communicate with the upper space 49a of the barrier 47, and furthermore, can communicate with the bypass flow path 27. [

The rotary shaft 42 rotates to open the duct portion 44 and the shielding plate 43 can shield the suction port 46 or the ventilation opening 15. [ In other words, the shielding plate 43 can prevent the air introduced into the ventilation opening 15 from flowing into the lower space 49b of the barrier 47. Thereby, the indoor air flowing into the ventilation opening (15) can not flow into the total heat-exchanging element (38).

Therefore, the room air introduced into the ventilation opening 15 in the bypass mode can be guided to the upper space 49a of the barrier 47 through the duct portion 44, have. The indoor air flowing into the bypass flow path 27 by bypassing the total heat exchange element 38 can be discharged to the exhaust port 16. [

15 is a control block diagram of the total enthalpy heat exchanger according to an embodiment of the present invention.

Referring to FIG. 15, the controller 59 can receive the measured values from each sensor and can control various configurations of the total heat exchanger. At this time, the control unit 59 can communicate with the central control system or the like of the building in which the total enthalpy heat exchanger 1 is installed through the communication unit, so that the central control of the total enthusiast exchanger 1 can be performed. The control unit 59 may also include a user interface or a receiving unit so that the user can directly control the total enthalpy heat exchanger 1 through a remote controller or the like.

The control unit 59 can sense the temperature measured by the temperature sensor 65. [ More specifically, the control unit 59 can sense the temperature of the room air measured by the room temperature sensor 67 and the temperature of the outdoor air measured by the outdoor temperature sensor 66. [

Also, the control unit 59 can sense the carbon dioxide content of the indoor air measured by the carbon dioxide sensor 63.

Further, the controller 59 can sense the humidity of the outdoor air measured by the humidity sensor 64.

The control unit 59 can control at least one of the exhaust blower 16b, the air supply blower 18b, the heating heater 34 and the flow path conversion damper 41 according to the detection result. The control unit 59 can also control the ventilation damper 15a and the outside air damper 17a.

The control unit 59 can turn on and off the exhaust blower 16b and can control the operation frequency. For example, the control unit 59 can keep the exhaust blower 16b always on. The control unit 59 can increase the operating frequency of the exhaust blower 16b to perform rapid ventilation if the value measured by the carbon dioxide sensor 63 is higher than the predetermined value.

The control unit 59 can turn on / off the air supply blower 18b and can control the operation frequency. For example, when the humidity measured by the humidity sensor 64 is less than a predetermined humidity, the control unit 59 can turn on the air supply blower 18b to supply outdoor air to the room.

The control unit 59 can turn on and off the heating heater 34 and can control the temperature of the heating heater 34. [ For example, the control unit 59 can turn on the heating heater 34 if the temperature measured by the outdoor temperature sensor 66 is lower than a preset temperature.

The control unit 59 may control the flow path conversion damper 41 to perform the total heat exchange mode or the bypass mode.

The control unit 59 controls the drive motor connected to the rotary shaft 42 so that the shield plate 43 opens the ventilation opening 15 and the duct unit 44 is opened to the inside of the upper air guide 20 Or to contact the inner surface of the frame 45.

Thereby, the indoor air sucked into the ventilation opening 15 by the operation of the ventilation blower 16b passes through the total heat-exchanging element 38 of the heat exchange unit 30 and can be heat-exchanged with the outdoor air, Can be discharged.

The control unit 59 controls the driving motor connected to the rotating shaft 42 to rotate the rotating shaft 42 so that the first panel 43a contacts the upper surface of the barrier 47. In this bypass mode, At this time, the first panel 43a can be seated on the seating portion 44. The second panel 43b can block the portion of the suction port 46 corresponding to the lower side of the barrier 47 to prevent the room air flowing into the ventilation opening 15 from flowing into the total heat-

Thereby, the indoor air sucked into the ventilation opening (15) by the operation of the ventilation fan (16b) can be discharged to the ventilation opening (16) through the bypass flow passage (27) of the upper air guide (20).

The bypass mode can be implemented when outdoor air needs to be discharged rapidly. Or when heat exchange with outdoor air is unnecessary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention.

Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments.

The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

1: total heat exchanger 10: housing
15: Vents 16: Vents
16b: exhaust blower 17: external mechanism
18: feed mechanism 18b: blower for feeder
20: Upper air guide 27: Bypass passage
27a: first guide portion 27b: second guide portion
30: Heat exchange unit 35: Upper plate
38: Total heat exchanging element 40: Flow guide
41: flow path converting damper 42: rotating shaft
43: shield plate 44: duct portion
45: frame 46: inlet
47: Barrier 48: Duct guide portion

Claims (16)

A housing in which a ventilation hole and an air supply mechanism are formed on one side surface and an external mechanism and an exhaust hole are formed on the other side surface opposite to the one side surface;
A heat exchange unit accommodated in the housing and including an exhaust heat exchange element for exchanging heat between the air sucked into the external mechanism and the air sucked into the vent hole;
An upper air guide formed above the heat exchange unit to form a bypass flow path communicating the vent and the exhaust port;
A barrier for partitioning a space communicated with the ventilation hole so that an upper space communicates with the bypass flow passage and a lower space communicates with the total heat-exchanging element; And
And a flow path conversion damper communicating the ventilation port with the upper space or the lower space of the barrier,
Wherein the flow path-
A shield plate rotatable about a rotation axis; And
And a duct portion passing through the barrier and having one end connected to the shielding plate and rotated together with the shielding plate. The method according to claim 1,
Wherein the duct portion has a curved shape having a predetermined curvature. 3. The method of claim 2,
And the center of curvature of the duct portion is the rotation shaft. The method according to claim 1,
Wherein the flow path conversion damper is installed in the ventilation port. 5. The method of claim 4,
In the bypass mode, the shield plate shields the ventilation port, and the duct section communicates the ventilation space and the upper space of the barrier. 5. The method of claim 4,
In the total heat exchange mode, the shield plate opens the ventilation port, and the other end opposite to the general part of the duct part is shielded. The method according to claim 6,
And the other end of the duct portion is shielded by being in contact with the inner surface of the upper air guide at the time of the total heat exchange mode. The method according to claim 1,
Further comprising a drive motor for rotating the rotation shaft,
And the drive motor is installed in the upper air guide. The method according to claim 1,
The barrier is provided with a duct guide part,
And the duct portion is inserted into the duct guide portion. 10. The method of claim 9,
Wherein one end of the duct guide portion is connected to the barrier and the other end portion is spaced apart from the inner side surface of the upper air guide. The method according to claim 1,
Wherein the shield plate is located on the lower side of the barrier,
And the other end of the duct portion is located above the bottom surface of the barrier. The method according to claim 1,
Wherein the shield plate is located on the lower side of the barrier,
And the other end of the duct portion is located in the upper space of the barrier. The method according to claim 1,
The heat exchange unit includes:
Further comprising an upper plate for partitioning the total heat-exchanging element and the bypass flow path,
And the total heat-exchanging element is provided below the upper plate. 14. The method of claim 13,
And the barrier is disposed in contact with the upper plate. The method according to claim 1,
Further comprising a frame disposed between the ventilation port and the heat exchange unit, the barrier being provided therein, and a suction port communicating with the ventilation port,
And the flow path-changing damper is installed in the suction port. 16. The method of claim 15,
Wherein the shield plate opens the suction port in an all-heat exchange mode, and the other end of the duct portion opposite to the common portion is shielded by being in contact with an inner surface of the frame.

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