Cooling and ventilating device

Abstract

The cooling and ventilating device according to an embodiment may comprise: a blowing device which supplies external air to an indoor space; a diffuser which is disposed in the indoor space and diffuses the external air introduced from the blowing device to the indoor space; an indoor unit which is disposed in the indoor space and cools and discharges the introduced air; and a control valve which is connected to the blowing device, the diffuser, and the indoor unit by means of a pipe and controls the flow direction of air.

Description

Cooling and ventilation devices

[0001] The present invention relates to a cooling and ventilation device, and more specifically, to a cooling and ventilation device in which cooling and ventilation functions are integrated.

[0002] The content described in this section merely provides background information regarding the present invention and does not constitute prior art.

[0003] An air conditioner can cool an indoor space. The indoor unit equipped in the air conditioner can cool the indoor air by repeating the process of drawing in and expelling indoor air.

[0004] An air conditioner can maintain indoor air at a comfortable temperature for the user by cooling the air drawn in through heat exchange in the indoor unit using an evaporator through which refrigerant flows, and then discharging it.

[0005] However, since conventional air conditioners only draw in and expel indoor air, they cannot perform ventilation operations that change the indoor air quality by drawing in outdoor air.

[0006] Users need indoor ventilation when there is a high concentration of carbon dioxide indoors or when strong food odors are present due to cooking or other factors.

[0007] For such ventilation, a diffuser may be provided indoors. The diffuser can ventilate the indoor space by drawing in outside air and discharging it into the room.

[0008] Generally, air conditioners for cooling the indoor space and diffusers for ventilating the indoor space are provided separately. When air conditioners and diffusers are provided separately, volumetric efficiency may be reduced because each device occupies a large volume, and electricity consumption may increase because they operate independently.

[0009] To solve these problems, it is necessary to develop an integrated device capable of simultaneous cooling and ventilation.

[0010] Related prior art is disclosed in Korean Registered Patent 10-1188851 and Korean Registered Utility Model 20-0406717.

[0011] The objective of the present invention is to provide a cooling and ventilation device in which cooling and ventilation functions are integrated.

[0012] In addition, the objective of the present invention is to provide a cooling and ventilation device having an integrated structure capable of operating in various modes.

[0013] In addition, the objective of the present invention is to provide a cooling and ventilation device having a structure that is easy to assemble.

[0014] In addition, the objective of the present invention is to provide a cooling and ventilation device having a structure that facilitates the control of the air flow direction.

[0015] The objects of the present invention are not limited to those mentioned above, and other unmentioned objects and advantages of the present invention may be understood from the following description and will be more clearly understood from the embodiments of the present invention. Furthermore, it will be readily apparent that the objects and advantages of the present invention can be realized by the means and combinations thereof set forth in the claims.

[0016] One embodiment of a cooling and ventilation device may include: a blower that supplies outside air into a room; a diffuser disposed in a room and diffuses outside air flowing in from the blower into the room; an indoor unit disposed in a room and cools and discharges the incoming air; and a control valve connected to the blower, the diffuser, and the indoor unit by piping and controlling the direction of air flow.

[0017] In a cooling and ventilation system, a diffuser used for ventilation and an indoor unit used for indoor cooling can be connected to each other by piping and provided as a single unit.

[0018] One embodiment of a cooling and ventilation device may operate in any one of the following modes: a first mode in which a diffuser operates to introduce outside air supplied from a blower into the room to ventilate the room; a second mode in which, when the outside temperature is lower than the room temperature, a diffuser operates to introduce outside air supplied from a blower into the room to ventilate and cool the room; a third mode in which an indoor unit operates to cool the outside air supplied from a blower and discharge it into the room to ventilate and cool the room; or a fourth mode in which an indoor unit operates to cool the indoor air to cool the room.

[0019] In the case of the first and second modes, the control valve connects the blower and the diffuser and blocks the inflow of outside air to the indoor unit, in the case of the third mode, the control valve connects the blower and the indoor unit and blocks the inflow of outside air to the diffuser, and in the case of the fourth mode, the control valve can be closed.

[0020] Accordingly, compared to cases where separate devices are provided for ventilation and cooling purposes, operation is convenient, which can increase user convenience.

[0021] One embodiment of a cooling and ventilation device may include a connecting panel that is connected to the ceiling of an indoor space and to which a diffuser and an indoor unit are connected.

[0022] The coupling panel includes a first piece to which the diffuser and the indoor unit are coupled, and the diffuser and the indoor unit may include a second piece to which the first piece is coupled.

[0023] The diffuser or indoor unit can be stably mounted to the coupling panel by a coupling structure between the first piece and the second piece that does not use a separate coupling mechanism such as screws.

[0024] The diffuser may include: a casing connected to a second duct and into which external air is introduced; a cover panel disposed on the lower side of the casing and having a first outlet formed therein for discharging air at a position corresponding to the casing; a first vane disposed at the first outlet and rotating to open and close the first outlet; and a louver housed in the casing, rotatably configured, and controlling the direction of air flow discharged from the diffuser.

[0025] The louver includes a rotating pin; and a plurality of control vanes spaced apart from each other in the direction of the rotation axis of the rotating pin, and the control vanes can rotate to change the flow direction of air discharged from the diffuser.

[0026] The louver can easily adjust the direction of airflow discharged from the diffuser by rotating the control vanes.

[0027] In the cooling and ventilation device of the present invention, a diffuser used for ventilation and an indoor unit used for indoor cooling can be connected to each other by piping and provided as a single unit. Accordingly, since the ventilation and cooling are provided as a single unit, the volumetric efficiency of the cooling and ventilation device can be increased.

[0028] In addition, since they operate as a single unit, the amount of electricity consumed can be effectively reduced compared to cases where separate devices for ventilation and cooling operate separately.

[0029] In addition, the cooling and ventilation devices may be equipped with a first to fourth mode depending on the outdoor and indoor environmental conditions. Accordingly, since operation is convenient compared to cases where separate devices are provided for ventilation and cooling purposes, user convenience can be enhanced.

[0030] In the cooling and ventilation device of the present invention, a diffuser or indoor unit can be stably mounted in a first mounting hole or a second mounting hole formed in a coupling panel by a coupling structure between a first piece and a second piece that does not use a separate coupling mechanism such as a screw.

[0031] In addition, the first and second pieces can conveniently guide the position where the diffuser or indoor unit is mounted on the coupling panel. That is, by combining the first and second pieces, the diffuser or indoor unit can be placed at the designed position on the coupling panel.

[0032] Accordingly, the first and second pieces can provide significant convenience in assembling the diffuser or indoor unit to the mounting panel.

[0033] In the cooling and ventilation device of the present invention, the louvers can easily control the flow direction of air discharged from the diffuser by rotating the control vanes. In particular, when the control vanes are rotated continuously while changing their rotation direction, the air discharged from the diffuser can be diffused evenly and easily throughout the room. Accordingly, effective indoor ventilation can be carried out.

[0034] In addition to the effects described above, the specific effects of the present invention are described together with the specific details for implementing the invention below.

[0035] FIG. 1 is a drawing showing a cooling and ventilation device according to one embodiment.

[0036] FIG. 2 is a drawing showing the state in which a cooling and ventilation device according to one embodiment operates in a first mode or a second mode.

[0037] FIG. 3 is a drawing showing the state in which a cooling and ventilation device according to one embodiment operates in a third mode.

[0038] FIG. 4 is a drawing showing the state in which a cooling and ventilation device according to one embodiment operates in a fourth mode.

[0039] FIG. 5 is a perspective view showing a part of a cooling and ventilation device according to one embodiment.

[0040] Fig. 6 is a bottom view of Fig. 5.

[0041] Figure 7 is a drawing showing the first piece of the combined panel.

[0042] Figure 8 is a drawing showing the second piece.

[0043] Figure 9 is a drawing showing the state in which the first piece and the second piece are combined with each other.

[0044] Figure 10 is a drawing showing the state in which a diffuser and an indoor unit are combined in a combined panel.

[0045] FIG. 11 is a bottom view showing a diffuser according to one embodiment.

[0046] FIG. 12 is a perspective view showing a diffuser according to one embodiment.

[0047] FIG. 13 is a diagram illustrating how the direction of air flow discharged from a diffuser is controlled according to the operation of the louvers.

[0048] Figure 14 is a diagram showing the direction of air flow with the position of the louvers changed compared to Figure 13.

[0049] The aforementioned objectives, features, and advantages are described in detail below with reference to the attached drawings, thereby enabling those skilled in the art to easily implement the technical concept of the present invention. In describing the present invention, detailed descriptions of known technologies related to the present invention are omitted if it is determined that such descriptions would unnecessarily obscure the essence of the invention. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

[0050] Although terms such as "first," "second," etc., are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used merely to distinguish one component from another, and unless specifically stated otherwise, the first component may also be the second component.

[0051] Throughout the specification, unless specifically stated otherwise, each component may be singular or plural.

[0052] Singular expressions used in this specification include plural expressions unless the context clearly indicates otherwise. In this application, terms such as "composed of" or "comprising" should not be interpreted as necessarily including all of the various components or steps described in the specification, and should be interpreted as meaning that some of the components or steps may be omitted or additional components or steps may be included.

[0053] Throughout the specification, "A and / or B" means A, B, or A and B unless specifically stated otherwise, and "C to D" means C or more and D or less unless specifically stated otherwise.

[0054] Throughout the specification, "up," "down," or "up-down direction" refers to the up, down, or up-down direction of the cooling and ventilation device when it is installed for routine use. "Bilateral direction" or "lateral direction" refers to a direction orthogonal to the up-down direction. Bilateral direction or lateral direction may include "left-right direction" and "front-back direction," where the left-right direction and the front-back direction are orthogonal to each other.

[0055] FIG. 1 is a drawing showing a cooling and ventilation device according to one embodiment. The cooling and ventilation device of one embodiment may include a blower (100), a diffuser (200), an indoor unit (300), and a control valve (400).

[0056] The blower (100) can supply outside air into the room. The blower (100) can be installed anywhere, whether outdoors or indoors, as long as it is in a location where outside air can be sucked in. If the blower (100) is installed indoors, a pipe capable of sucking in outside air may be connected to the blower (100).

[0057] The blower device (100) is equipped with a fan, and the fan can operate to blow outside air into the room.

[0058] The diffuser (200) is placed indoors and can diffuse outside air flowing in from the blower (100) into the room. In an embodiment, the diffuser (200) may be provided in a form that is embedded in the ceiling of the room, for example.

[0059] The diffuser (200) is connected to the blower (100) and can ventilate the indoor space by diffusing outdoor air flowing in from the blower (100) into the indoor space. As will be described later, the diffuser (200) may be equipped with a louver (240) that controls the direction of the discharged air.

[0060] Therefore, the diffuser (200) can control the flow direction of the discharged air by operating the louvers (240).

[0061] The indoor unit (300) is placed indoors and can cool and discharge incoming air. The indoor unit (300) may be provided in a state where it is connected to a control valve (400) and piping to an evaporator, which is a part of the air conditioner.

[0062] Accordingly, a separate air conditioner may be provided for the indoor unit (300) to operate as an evaporator. Such an air conditioner may operate as a vapor compression refrigeration cycle in which the refrigerant flows while changing in two phases, and may be equipped with a compressor, a condenser, an expansion valve, and an evaporator.

[0063] At this time, the indoor unit (300) can operate as an evaporator that cools the surrounding air by absorbing surrounding heat as the refrigerant evaporates.

[0064] The control valve (400) can be connected to the blower (100), diffuser (200), and indoor unit (300) via piping. The control valve (400) can control the direction of air flow.

[0065] The control valve (400) has three air passages, and each of the three passages can be connected to a blower (100), a diffuser (200), and an indoor unit (300) via piping. Depending on the operating state, the control valve (400) can connect the blower (100) and the diffuser (200), or connect the blower (100) and the indoor unit (300), or close all the piping so that the blower (100), the diffuser (200), and the indoor unit (300) do not communicate with each other.

[0066] The control valve (400) may be provided as, for example, a 3-way valve or a 4-way valve. In the case of a 4-way valve, one of the four fluid passages may be closed to leave only three passages, and used as a control valve (400).

[0067] When the control valve (400) is configured as a 4-way valve, costs can be saved compared to a 3-way valve. In each drawing, a case where the control valve (400) is equipped as a 3-way valve is shown.

[0068] Under the control of the control valve (400), the cooling and ventilation device of the embodiment can perform operations divided into, for example, four modes. Each mode can perform at least one operation of ventilation or cooling. This will be explained in detail.

[0069] Operation for each mode can be controlled by a control unit provided in the cooling and ventilation device. The control unit may operate autonomously according to preset control logic based on outdoor and indoor environmental conditions, or it may receive user commands to control the cooling and ventilation device to operate for each mode.

[0070] FIG. 2 is a drawing showing the state in which a cooling and ventilation device according to one embodiment operates in a first mode or a second mode. In FIG. 2 to 4, the direction of air flow is indicated by an arrow, and an X mark indicates that the piping is closed by a control valve (400).

[0071] The cooling and ventilation device of the embodiment can operate in a first to fourth mode depending on indoor and outdoor environmental conditions.

[0072] In the first mode, the diffuser (200) operates to introduce outside air supplied from the blower (100) into the room to ventilate the room. In the first mode, the indoor and outdoor temperatures are similar, so the operation can practically be performed for the main purpose of ventilation.

[0073] In the first mode, outdoor air is introduced and diffused into the room through the diffuser (200) to ventilate the room, and since the indoor unit (300) is not operated, cooling by the indoor unit (300) may not occur.

[0074] In the second mode, when the outside temperature is lower than the indoor temperature, the diffuser (200) operates to introduce outside air supplied from the blower (100) into the room, thereby ventilating and cooling the room.

[0075] In the second mode, the operation of the cooling and ventilation device may be the same as in the first mode. In the second mode, since the outside air temperature is lower than the indoor temperature, the indoor unit (300) is not operated, and the indoor space can be ventilated and cooled using only the outdoor air with a relatively lower temperature.

[0076] That is, in the second mode, the cooling and ventilation devices may operate identically to the first mode, except that the outside temperature is lower than the indoor temperature.

[0077] As shown in FIG. 2, in the case of the first mode and the second mode, the control valve (400) can connect the blower (100) and the diffuser (200) and block the inflow of outside air into the indoor unit (300).

[0078] Accordingly, when the cooling and ventilation device operates in the first mode and the second mode, the blower (100) and the diffuser (200) are connected to each other by the control valve (400), so that outside air is discharged directly into the room through the diffuser (200) to ventilate the room.

[0079] In the first and second modes, the blower (100) and the diffuser (200) operate, and the indoor unit (300) may stop operating.

[0080] In the first mode, the indoor and outdoor temperatures are similar, so the primary purpose can be indoor ventilation. In the second mode, low-temperature outdoor air is introduced into the room, allowing for indoor ventilation while simultaneously cooling by the outdoor air.

[0081] FIG. 3 is a drawing showing the state in which a cooling and ventilation device according to one embodiment operates in a third mode.

[0082] In the third mode, the indoor unit (300) operates to cool the outside air supplied from the blower (100) and discharge it into the room, thereby ventilating and cooling the room. In the third mode, the indoor unit (300) is used to cool the outside air, thereby ventilating and cooling the room.

[0083] In the third mode, the blower and the indoor unit (300) operate, and the diffuser (200) may stop operating.

[0084] As shown in FIG. 3, in the case of the third mode, the control valve (400) can connect the blower (100) and the indoor unit (300) and block the inflow of outside air to the diffuser (200).

[0085] In the third mode, the control valve (400) connects the blower (100) and the indoor unit (300) to each other, blocks the inflow of air to the diffuser (200), and stops the operation of the diffuser (200). Accordingly, outdoor air flows into the indoor unit (300), is cooled in the indoor unit (300), and is discharged into the room to ventilate and cool the room.

[0086] The third mode differs from the fourth mode, which uses indoor air to cool the room, in that it uses outdoor air to ventilate and cool the room.

[0087] FIG. 4 is a drawing showing the state in which a cooling and ventilation device according to one embodiment operates in a fourth mode.

[0088] In the fourth mode, the indoor unit (300) operates to cool the indoor air and cool the indoor space. As shown in FIG. 4, in the case of the fourth mode, the control valve (400) can be closed.

[0089] Accordingly, the blower (100), diffuser (200), and indoor unit (300) are not connected to each other, the blower (100) and diffuser (200) are stopped from operating, and the indoor unit (300) can operate.

[0090] In the fourth mode, since the blower (100) does not operate, outdoor air is not introduced into the room. In the fourth mode, the indoor unit (300) can cool the room by drawing in indoor air, cooling it, and discharging it back into the room, that is, by circulating the indoor air, and at this time, ventilation by outdoor air does not occur.

[0091] In an embodiment, a diffuser (200) used for ventilation and an indoor unit (300) used for indoor cooling can be connected to each other by piping and provided as a single unit. Accordingly, since the ventilation and cooling are provided as a single unit, the volumetric efficiency of the cooling and ventilation device can be increased.

[0092] In addition, since they operate as a single unit, the amount of electricity consumed can be effectively reduced compared to cases where separate devices for ventilation and cooling operate separately.

[0093] In addition, the cooling and ventilation devices may be equipped with a first to fourth mode depending on the outdoor and indoor environmental conditions. Accordingly, since operation is convenient compared to cases where separate devices are provided for ventilation and cooling purposes, user convenience can be enhanced.

[0094] A first duct (710), a second duct (720), and a third duct (730) may be provided as pipes connecting each component in a cooling and ventilation device.

[0095] The first duct (710) can connect the blower (100) and the control valve (400). The second duct (720) can connect the control valve (400) and the diffuser (200). The third duct (730) can connect the control valve (400) and the indoor unit (300).

[0096] The first duct (710), the second duct (720), and the third duct (730) are all connected at one end to the control valve (400), and each duct can be opened or closed by the operation of the control valve (400).

[0097] In the first mode and the second mode, air flows through the first duct (710) and the second duct (720), and the third duct (730) can be closed. In the third mode, air flows through the first duct (710) and the third duct (730), and the second duct (720) can be closed.

[0098] The air flowing through each duct in the first, second, and third modes may be outdoor air that has passed through the blower (100).

[0099] In the fourth mode, the first duct (710), the second duct (720), and the third duct (730) can all be closed. In the fourth mode, the first duct (710), the second duct (720), and the third duct (730) can be closed by closing the control valve (400) itself.

[0100] Thus, in the fourth mode, outside air is not introduced into the room, and the room can be cooled by the operation of the indoor unit (300) and the indoor air circulates through the indoor unit (300).

[0101] Hereinafter, the specific structure of a cooling and ventilation device in which a diffuser (200) and an indoor unit (300) are integrally provided will be described. FIG. 5 is a perspective view showing a part of a cooling and ventilation device according to one embodiment. FIG. 6 is a bottom view of FIG. 5.

[0102] A cooling and ventilation device of one embodiment may include a connecting panel (500) that is connected to the ceiling of the room and to which a diffuser (200) and an indoor unit (300) are connected.

[0103] For example, the diffuser (200) and the indoor unit (300) can be installed in a recessed manner in the ceiling of the room. Accordingly, the cooling and ventilation device may be equipped with a connecting panel (500) for integrally combining the diffuser (200) and the indoor unit (300) and embedding them in the ceiling of the room.

[0104] On the upper side of the coupling panel (500), a second duct (720) connecting the control valve (400) and the diffuser (200), and a part of a third duct (730) connecting the control valve (400) and the indoor unit (300) may be arranged. In an embodiment, the control valve (400) may be coupled to the coupling panel (500), or in another embodiment, it may be positioned at a location spaced apart from the coupling panel (500).

[0105] The coupling panel (500) is formed in a plate shape overall, and mounting holes for mounting a diffuser (200) and an indoor unit (300) may be formed. The coupling panel (500) may include a first mounting hole (510) and a second mounting hole (520).

[0106] A diffuser (200) may be mounted in the first mounting hole (510). Accordingly, the size and shape of the first mounting hole (510) may be formed to correspond to the size and shape of the diffuser (200). An indoor unit (300) may be mounted in the second mounting hole (520). Accordingly, the size and shape of the second mounting hole (520) may be formed to correspond to the size and shape of the indoor unit (300).

[0107] The diffuser (200) and the indoor unit (300) can be combined with the coupling panel (500) and placed as a single unit indoors. Therefore, the coupling panel requires a structure in which the diffuser (200) and the indoor unit (300) are combined. To this end, the coupling panel (500) may include a first piece (530).

[0108] The coupling panel (500) may include a first piece (530) to which the diffuser (200) and the indoor unit (300) are coupled. The first piece (530) may be spaced apart from each other in an appropriate number at the edges of the first mounting hole (510) and the second mounting hole (520).

[0109] Referring to FIG. 6, four first pieces (530) are provided at the edges of the first mounting hole (510) and the second mounting hole (520), respectively, but the number of first pieces (530) is not limited thereto and may be provided in five or more depending on the size and shape of the diffuser (200) and the indoor unit (300).

[0110] Accordingly, the diffuser (200) and the indoor unit (300) may include a second piece (600) that is combined with the first piece (530). The second piece (600) may be arranged in a corresponding number at a position corresponding to the first piece (530).

[0111] FIG. 7 is a drawing showing the first piece (530) of the combined panel (500). FIG. 8 is a drawing showing the second piece (600). FIG. 9 is a drawing showing the first piece (530) and the second piece (600) combined with each other.

[0112] The first piece (530) may include a first part (531), a second part (532), and a hook (533). The first part (531) may protrude from one side of the coupling panel (500). As shown in FIG. 7, the first part (531) may protrude from the upper surface of the coupling panel (500) at a position adjacent to the edge of the first mounting hole (510) or the second mounting hole (520) in the coupling panel (500).

[0113] The second part (532) can be bent from the first part (531) and inserted into the first mounting hole (510) or the second mounting hole (520). By inserting the second part (532) into the first mounting hole (510) or the second mounting hole (520), the hook (533) formed at its end can be positioned in the first mounting hole (510) or the second mounting hole (520) so that the hook (533) can be coupled to the second piece (600).

[0114] A hook (533) may protrude from the end of the second part (532). The hook (533) may be coupled to the second piece (600) to allow the diffuser (200) or the indoor unit (300) to be mounted on the coupling panel (500). The hook (533) is formed to narrow toward its end to facilitate mounting or removal between the first piece (530) and the second piece (600).

[0115] The second piece (600) may include an insertion hole (610) into which the second part (532) is inserted. The second piece (600) may protrude from the edge of the diffuser (200) or the indoor unit (300).

[0116] Referring to FIG. 9, the hook (533) of the first piece (530) can be inserted into the insertion hole (610) of the second piece (600) and then come out of the insertion hole (610), and in this state, the first piece (530) and the second piece (600) can be maintained in a combined state.

[0117] In this way, the diffuser (200) or indoor unit (300) can be combined with the coupling panel (500) and positioned in a state embedded in the ceiling of the room.

[0118] In an embodiment, the diffuser (200) or indoor unit (300) can be stably mounted in a first mounting hole (510) or a second mounting hole (520) formed in a coupling panel (500) by a coupling structure between a first piece (530) and a second piece (600) that does not use a separate coupling mechanism such as a screw.

[0119] Additionally, the first piece (530) and the second piece (600) can conveniently guide the position where the diffuser (200) or indoor unit (300) is mounted on the coupling panel (500). That is, by combining the first piece (530) and the second piece (600) together, the diffuser (200) or indoor unit (300) can be placed at a designed position on the coupling panel (500).

[0120] Accordingly, the first piece (530) and the second piece (600) can provide significant convenience in assembling the diffuser (200) or indoor unit (300) to the mounting panel.

[0121] FIG. 10 is a drawing showing the state in which a diffuser (200) and an indoor unit (300) are combined with a coupling panel (500). FIG. 8 and FIG. 9 show a structure in which a diffuser (200) is combined with a coupling panel (500) by a first piece (530) and a second piece (600).

[0122] Meanwhile, referring to FIG. 10, the method of connecting the indoor unit (300) to the connecting panel (500) may be the same as the method of connecting the diffuser (200) to the connecting panel (500). Accordingly, the second piece (600) provided in the indoor unit (300) may have the same or extremely similar structure as the second piece (600) provided in the diffuser (200).

[0123] Accordingly, the structure in which the indoor unit (300) is coupled to the coupling panel (500) and placed in the second mounting hole (520) can be clearly seen by referring to FIGS. 8 and 9.

[0124] Meanwhile, referring to FIGS. 5 and 6, the indoor unit (300) may include an inlet (310), a second outlet (320), and a second vane (330). The inlet (310) may be provided to allow air to enter. Indoor air may enter through the inlet (310).

[0125] The second exhaust port (320) is formed at a location spaced apart from the inlet port (310) and can discharge air. Cooled air can be discharged from the second exhaust port (320) to cool the room. The cooling and ventilation device can discharge air from the second exhaust port (320) in the third mode or the fourth mode.

[0126] In the third mode, outdoor air introduced into the room through the blower (100) is discharged from the second outlet (320), and in the fourth mode, indoor air circulating in the room can be discharged from the second outlet (320).

[0127] The second vane (330) is positioned in the second discharge port (320) and can rotate to open and close the second discharge port (320). The second vane (330) is connected to a driving device whose operation is controlled by a control unit and can rotate by the operation of the driving device.

[0128] In the first mode and the second mode, the second vane (330) can close the second outlet (320). Since cooling by the indoor unit (300) does not proceed in the first mode and the second mode, the indoor unit (300) does not operate, and accordingly, the second outlet (320) is closed so that the entry of foreign matter into the indoor unit (300) can be suppressed.

[0129] In the third and fourth modes, the second vane (330) can open the second exhaust port (320). Since cooling by the indoor unit (300) is performed in the third and fourth modes, the indoor unit (300) operates, and accordingly, the second exhaust port (320) can be opened to discharge air.

[0130] Meanwhile, in the third mode, the indoor unit (300) may be configured to discharge outdoor air flowing in from the blower (100) and simultaneously discharge the air circulating indoors. In another embodiment, in the third mode, the indoor unit (300) may stop the intake of indoor air and cool and discharge only the outdoor air flowing in from the blower (100).

[0131] In the fourth mode, indoor air can be introduced into the indoor unit (300) through the inlet (310), cooled, and then discharged into the room through the second outlet (320). That is, in the fourth mode, the room can be cooled by the circulation flow of indoor air.

[0132] The structure of the diffuser (200) is described in detail below. FIG. 11 is a bottom view showing a diffuser (200) according to one embodiment. FIG. 12 is a perspective view showing a diffuser (200) according to one embodiment.

[0133] The diffuser (200) may include a casing (210), a cover panel (220), a first vane (230), a louver (240), and a connecting bracket (250). The casing (210) is connected to a second duct (720) and can allow external air to be introduced. The casing (210) is generally formed as a hollow hexagon, and air can flow within the internal space. Additionally, a louver (240) may be placed within the internal space of the casing (210).

[0134] The cover panel (220) is positioned on the lower side of the casing (210), and a first exhaust port (221) through which air is discharged can be formed at a position corresponding to the casing (210).

[0135] The cover panel (220) is provided with an overall downwardly convex shape, and a space for arranging the first drive motor (810), the second drive motor (820), and other parts may be formed on the upper side thereof. A second piece (600) may be arranged on the edge of the cover panel (220).

[0136] The first vane (230) is positioned at the first discharge port (221) and can rotate to open and close the first discharge port (221). When the diffuser (200) is not operating, the first vane (230) can close the first discharge port (221) to prevent foreign substances from entering the diffuser (200) through the first discharge port (221).

[0137] The louver (240) is housed in the casing (210), is rotatably configured, and can control the direction of air flow discharged from the diffuser (200). The louver (240) can control the direction of air flow so that the air discharged from the diffuser (200) spreads uniformly throughout the room.

[0138] The louver (240) may include a rotating pin (241) and a control vane (242). The rotating pin (241) is provided in a rod shape and can rotate. As the rotating pin (241) rotates, the control vane (242) positioned on the rotating pin (241) rotates, thereby controlling the flow direction of the air discharged through the first outlet (221).

[0139] The control vanes (242) may be provided in multiple numbers spaced apart from each other in the direction of the rotation axis of the rotating pin (241). The control vanes (242) may be arranged at a predetermined distance from each other in the direction of the rotation axis of the rotating pin (241). Since the control vanes (242) are formed in a flat plate shape, the direction of air flow discharged through the first discharge port (221) can be changed as their position changes.

[0140] The connecting bracket (250) is connected to the casing (210) and can be connected to the ceiling of the room by means of a connecting mechanism such as a screw. When the load of the diffuser (200) is so large that it is difficult to fix the diffuser (200) by the first piece (530) and the second piece (600), the diffuser (200) can be stably fixed to the ceiling of the room using the connecting bracket (250).

[0141] A cooling and ventilation device of one embodiment may include a first drive motor (810) and a second drive motor (820). The first drive motor (810) is positioned on the upper side of the cover panel (220) and can rotate the first vane (230). The first drive motor (810) may be provided to be fixedly coupled to the cover panel (220) on the upper side of the cover panel (220).

[0142] The first drive motor (810) can be coupled to the first vane (230). As the first drive motor (810) rotates, the first vane (230) rotates in the direction of the rotation axis of the first drive motor (810) to open or close the first discharge port (221).

[0143] It is positioned on the upper side of the cover panel (220) and can rotate the louver (240). The second drive motor (820) may be provided to be fixedly coupled to the cover panel (220) on the upper side of the cover panel (220).

[0144] The second drive motor (820) can be coupled to the rotating pin (241) of the louver (240). As the second drive motor (820) rotates, the rotating pin (241) rotates in the direction of the rotation axis of the second drive motor (820), and accordingly, the control vane (242) rotates, thereby changing the direction of air flow discharged from the first outlet (221).

[0145] In the first and second modes, the first vane (230) opens the first outlet (221) and the louver (240) operates to control the flow direction of the discharged air. In the first and second modes, since the diffuser (200) operates, the first vane (230) opens the first outlet (221), and accordingly, outdoor air is discharged from the diffuser (200) into the room to ventilate the room.

[0146] In the second mode, cold outside air is discharged from the first outlet (221) to ventilate and cool the room.

[0147] In the third and fourth modes, the first vane (230) closes the first exhaust port (221), and the louver (240) may stop operating. Since the diffuser (200) does not operate in the third and fourth modes, the louver (240) does not rotate, and the first vane (230) closes the first exhaust port (221), thereby preventing foreign substances contained in the indoor air from entering the diffuser (200) through the first exhaust port (221).

[0148] The control vane (242) can rotate to change the direction of air flow discharged from the diffuser (200). FIG. 13 is a diagram illustrating how the direction of air flow discharged from the diffuser (200) is controlled according to the operation of the louver (240).

[0149] FIG. 14 is a diagram showing the direction of air flow with the position of the louver (240) changed compared to FIG. 13. In FIG. 13 and FIG. 14, the direction of air flow is indicated by an arrow.

[0150] The following description is based on what is shown in the drawings. Referring to FIG. 13, as the louver (240) rotates, the control vane (242) can be tilted to the right at the top and to the left at the bottom.

[0151] In this state, the air discharged through the first outlet (221) can flow downward and generally shift to the left, parallel to the direction in which the control vanes (242) are aligned.

[0152] Referring to FIG. 14, the louver (240) rotates again, and accordingly, the control vane (242) can be tilted to the left at the top and to the right at the bottom.

[0153] In this state, the air discharged through the first outlet (221) can flow downward and generally shift to the right, parallel to the direction in which the control vanes (242) are aligned.

[0154] If the rotation direction of the second drive motor (820) is continuously changed in opposite directions—clockwise and counterclockwise—the air descending according to the alignment direction of the control vane (242) may continuously shift to the right and then to the left.

[0155] By continuously changing the rotation direction of the second drive motor (820) in this way, the flow direction of the air discharged from the first outlet (221) is also continuously changed, and accordingly, the discharged air can be effectively diffused into the room.

[0156] In the embodiment, the louver (240) can easily control the flow direction of air discharged from the diffuser (200) by rotating the control vane (242). In particular, when the control vane (242) is continuously rotated while changing its rotation direction, the air discharged from the diffuser (200) can be easily and evenly diffused throughout the room. Accordingly, effective indoor ventilation can be carried out.

[0157] Although the present invention has been described above with reference to the illustrated drawings, the present invention is not limited by the embodiments and drawings disclosed in this specification, and it is obvious that various modifications can be made by a person skilled in the art within the scope of the technical concept of the present invention. Furthermore, even if the effects of the configuration of the present invention were not explicitly described while explaining the embodiments of the present invention above, it is natural to acknowledge that the effects predictable by said configuration should also be recognized.

Claims

1. A blower that supplies outside air into the room; A diffuser positioned indoors and diffusing outside air introduced from the blower into the indoors; An indoor unit placed indoors that cools and discharges incoming air; and A control valve connected to the above blower, the above diffuser, and the above indoor unit via piping, and controlling the direction of air flow including, Cooling and ventilation devices.

2. In Paragraph 1, A first mode in which the above diffuser operates to introduce outside air supplied from the above blower into the room to ventilate the room; A second mode in which, when the outside temperature is lower than the indoor temperature, the diffuser operates to introduce outside air supplied from the blower into the room to ventilate and cool the room; A third mode in which the indoor unit operates to cool the outside air supplied from the blower and discharge it into the room to ventilate and cool the room; or The fourth mode in which the above indoor unit operates to cool the indoor air and cool the room. Operating in any one of the modes, Cooling and ventilation devices.

3. In Paragraph 2, In the case of the first and second modes, the control valve connects the blower and the diffuser and blocks the inflow of outside air to the indoor unit, and In the case of the above third mode, the control valve connects the blower and the indoor unit and blocks the inflow of outside air to the diffuser, and In the case of the above fourth mode, the control valve is closed, Cooling and ventilation devices.

4. In Paragraph 2, It includes a coupling panel that is coupled to the ceiling of the interior and to which the diffuser and the indoor unit are coupled, The above-mentioned connecting panel is, A first mounting hole in which the above diffuser is mounted; and The second mounting hole where the above indoor unit is mounted including, Cooling and ventilation devices.

5. In Paragraph 4, The above-mentioned coupling panel includes a first piece to which the diffuser and the indoor unit are coupled, and The above diffuser and the above indoor unit include a second piece that combines with the first piece, Cooling and ventilation devices.

6. In Paragraph 5, The above first piece is, A first part protruding from one side of the above-mentioned connecting panel; A second part that is bent from the first part and inserted into the first mounting hole or the second mounting hole; and A hook protruding from the end of the second part mentioned above including, Cooling and ventilation devices.

7. In Paragraph 6, The above second piece is, A diffuser or an indoor unit having an insertion hole protruding from the edge of the diffuser or the indoor unit and into which the second part is inserted. Cooling and ventilation devices.

8. In Paragraph 4, A first duct connecting the above blower and the above control valve; A second duct connecting the above control valve and the above diffuser; and A third duct connecting the above control valve and the above indoor unit including, Cooling and ventilation devices.

9. In Paragraph 8, In the first mode and the second mode, air flows through the first duct and the second duct, and the third duct is closed, and In the above third mode, air flows through the first duct and the third duct, and the second duct is closed, and In the above fourth mode, the first duct, the second duct, and the third duct are closed, Cooling and ventilation devices.

10. In Paragraph 8, The above diffuser is, A casing connected to the second duct above and into which external air is introduced; A cover panel disposed on the lower side of the casing and having a first exhaust port formed at a position corresponding to the casing through which air is discharged; A first vane disposed in the first discharge port and rotating to open and close the first discharge port; and A louver housed in the above casing, rotatably configured, and controlling the flow direction of air discharged from the diffuser including, Cooling and ventilation devices.

11. In Paragraph 10, The above louver is, Rotating pin; and A plurality of control vanes spaced apart from each other in the direction of the rotation axis of the above-mentioned rotating pin Includes, The above control vane rotates to change the direction of air flow discharged from the diffuser, Cooling and ventilation devices.

12. In Paragraph 10, A first drive motor disposed on the upper side of the above cover panel and rotating the first vane; and A second drive motor positioned on the upper side of the above cover panel and rotating the above louver including, Cooling and ventilation devices.

13. In Paragraph 10, In the first mode and the second mode, the first vane opens the first outlet and the louver operates to control the flow direction of the discharged air, and In the above third mode and the above fourth mode, the first vane closes the first outlet, and the louver stops operation. Cooling and ventilation devices.

14. In Paragraph 2, The above indoor unit is, Air inlet; A second exhaust port through which air is discharged; and A second vane disposed in the second discharge port and rotating to open and close the second discharge port including, Cooling and ventilation devices.

15. In Paragraph 14, In the first mode and the second mode above, the second vane closes the second outlet, and In the above third mode and the above fourth mode, the second vane opens the second outlet, Cooling and ventilation devices.

16. In Paragraph 15, In the above fourth mode, indoor air is introduced into the indoor unit through the inlet, cooled, and then discharged into the room through the second outlet. Cooling and ventilation devices.

Images