Indoor unit with bypass downward air discharge

Abstract

The present invention relates to an indoor unit for cooling a room, and more specifically, to a bypass downward discharge type indoor unit with excellent condensation prevention and improved cooling efficiency, wherein air is introduced from the side, passes through a heat exchanger, moves cooled air to the top or upper side, and then guides the air back down through a bypass from the top to discharge it, thereby preventing condensation from entering the room and preventing a decrease in cooling efficiency caused by condensation, and the cooling efficiency is improved by expanding the air contact area through a cooler provided at an angle. To this end, the present invention comprises an outer casing, a blower embedded in the outer casing to introduce outside air and induce it to be discharged into the room, a heat exchanger provided in a path through which outside air flows toward the blower to cool the air, and a drain plate provided at the bottom of the heat exchanger to recover and discharge generated condensate, wherein bypass passages are provided on both sides of the outer casing to induce the outside air introduced by the blower to pass through the heat exchanger and then pass through the blower to be discharged downward.

Description

Technology Field

[0001] The present invention relates to an indoor unit for cooling a room, and more specifically, to a bypass downward discharge type indoor unit with excellent condensation prevention and improved cooling efficiency, wherein air is introduced from the side, passes through a heat exchanger, moves cooled air to the top or upper side, and then guides the air back down through a bypass from the top to discharge it, thereby preventing condensation from entering the room and preventing a decrease in cooling efficiency caused by condensation, and the cooling efficiency is improved by expanding the air contact area through a cooler provided at an angle. Background Technology

[0002] Generally, indoor units that cool the interior are equipped in a form where outside air is drawn in from the side or top, passes through a heat exchanger, and is discharged downwards.

[0003] Consequently, condensation occurs due to the cooled air, and as the generated condensation is typically discharged through a drain pipe or drain plate formed on the side, a problem arises where the condensation is discharged into the room along with the cooled air.

[0004] In addition, as air passes through the heat exchanger in a straight line during the inflow and outflow paths, a large amount of air passes through the heat exchanger together, increasing the load on the heat exchanger and consequently causing a problem of reduced cooling efficiency.

[0005] Furthermore, when the incoming air passes through the heat exchanger, condensation formed on the heat exchanger hinders the smooth flow of air and causes a problem where heat exchange efficiency is also reduced.

[0006] In this regard, prior art document 1 (Registered Patent 10-2284081 Ventilation-type air purifier and ventilation system equipped therewith) discloses a configuration in which an indoor unit discharges air from the top to the bottom side of a ventilation-type air purifier.

[0007] However, in Prior Art 1, when condensation occurs, it falls downward due to its own weight, so a problem arises in which condensation can enter the room through the air supply pipe. Prior art literature

[0008] Prior Art 1 (Registered Patent 10-2284081 Ventilation-type air purifier and ventilation system equipped with the same) The problem to be solved

[0009] The present invention was devised to solve the above-mentioned problems and aims to provide a bypass downward discharge type indoor unit with excellent condensation prevention and improved cooling efficiency, which prevents condensation from entering the indoor space by introducing outside air laterally, passing it through a heat exchanger, moving it upward, and then guiding it downward through a bypass passage to discharge it.

[0010] The purpose is to provide a bypass downward discharge type indoor unit with excellent condensation prevention and improved cooling efficiency, which allows the drain pan to be positioned at the front to safely discharge condensation so that it does not enter the room.

[0011] In addition, the purpose is to provide a bypass downward discharge type indoor unit with excellent condensation prevention and improved cooling efficiency, which prevents a decrease in cooling efficiency due to condensation by installing the heat exchanger at an angle and allowing air to pass from the bottom to the top. means of solving the problem

[0012] A bypass downward discharge type indoor unit with excellent condensation prevention and improved cooling efficiency according to an embodiment of the present invention for solving the above-mentioned problems comprises an outer casing, a blower embedded in the outer casing to guide outside air to be introduced and discharged into the room, a heat exchanger provided in a path where outside air is introduced toward the blower to cool the air, and a drain plate provided at the bottom of the heat exchanger to recover and discharge generated condensate, wherein bypass passages are provided on both sides of the outer casing to guide the outside air introduced by the blower to be discharged downward after passing through the heat exchanger and the blower.

[0013] Herein, the outer casing is characterized by comprising an outside air inlet provided on one side of the outer casing for the inflow of outside air, an air distributor provided at the bottom of the outer casing for distributing and discharging air guided to a bypass passage downward, and a cover provided to be openable and closable from the outer casing.

[0014] At this time, the above-mentioned outside air inlet is characterized by being equipped with an outside air damper capable of controlling the amount of outside air introduced.

[0015] And the above-mentioned outside air damper is characterized by comprising a rotary damper that is rotatably provided in the form of a plate and can adjust the amount of outside air inflow according to the angle of rotation, and an operating part provided on one side of the rotary damper that can adjust the angle of the rotary damper.

[0016] The above bypass passage is characterized by being equipped with a heat exchanger cover that is partitioned from the bypass passage and blocks the outside air from entering the bypass passage when the outside air passes through the heat exchanger and undergoes heat exchange while being introduced.

[0017] Meanwhile, the air distributor is characterized by including a blower guide blade that guides air passing through a bypass passage to be discharged downward, a rotating body that rotates the blower guide blade as a whole, and a rotary drive motor provided on one side of the rotating body to drive the rotating body to rotate.

[0018] The above-described blower is characterized by comprising a blower inlet that pressurizes and conveys outside air into the interior of an outer casing, a blower outlet that is provided above the blower inlet and discharges air toward the upper side, and an impeller provided between the blower inlet and the blower outlet that generates pressure through rotation to allow outside air to be drawn in and discharged.

[0019] The above heat exchanger is characterized by including a heat exchange coil through which a refrigerant circulates and which cools the air passing through the heat exchanger, a heat dissipation fin that can increase the heat exchange efficiency by widening the contact area of ​​the passing air, and an inclined fixing part that can fix the heat exchanger at an angle.

[0020] The above drain plate is characterized by comprising a condensate recovery plate provided at the bottom of the heat exchanger for recovering condensed water, and a condensate discharge hole provided on one side of the condensate recovery plate for discharging the recovered condensate to the outside.

[0021] Meanwhile, the above-mentioned bypass passage is characterized by being equipped with a blower guide that guides air flowing in from a blower downwards.

[0022] Here, the air blower guide is characterized by comprising: an air blower guide inclined plate provided above the bypass passage and inclined downward along the air blower direction; an air blower acceleration plate rotatably provided below the air blower guide inclined plate to accelerate the air blower downward by rotational movement; and a repulsion magnet provided facing each other with the same polarity between the air blower acceleration plate and the air blower guide inclined plate, which pushes the air blower acceleration plate by magnetism when the air blower acceleration plate approaches the air blower guide inclined plate side by the air blower. Effects of the invention

[0023] An indoor unit with excellent condensation prevention and improved cooling efficiency by bypass downward discharge type according to one embodiment of the present invention has the effect of preventing condensation from entering the indoor space by introducing outside air laterally, passing it from the bottom to the top of the heat exchanger, and then bypassing it again through a bypass passage at the top to discharge it downward.

[0024] In addition, placing the drain plate at the front has the effect of facilitating the collection and discharge of condensation.

[0025] In addition, installing the heat exchanger at an angle minimizes the load when air passes through and heat is exchanged, thereby increasing cooling efficiency. Brief explanation of the drawing

[0026] FIG. 1 is an overall perspective view of a bypass downward discharge type indoor unit having excellent condensation prevention and improved cooling efficiency according to an embodiment of the present invention. FIG. 2 is a perspective view showing the state with the cover removed in a bypass downward discharge type indoor unit with excellent condensation prevention and improved cooling efficiency according to an embodiment of the present invention. FIG. 3 is an operational state diagram illustrating the state in which air is introduced and discharged in a bypass downward discharge type indoor unit with excellent condensation prevention and improved cooling efficiency according to an embodiment of the present invention. FIG. 4 is an embodiment illustrating a state in which a blower guide is further provided in the bypass passage of a bypass downward discharge type indoor unit with excellent condensation prevention and improved cooling efficiency according to another embodiment of the present invention. FIG. 5 is an operating state diagram of a blower guide in a bypass passage in a bypass downward discharge type indoor unit with excellent condensation prevention and improved cooling efficiency according to another embodiment of the present invention. Specific details for implementing the invention

[0027] The present invention relates to an airflow diffusion type indoor unit, and is characterized in that, in particular, outside air is introduced from the side and guided upward and then discharged downward through a bypass passage, thereby preventing condensation from being discharged together, and the heat exchanger is installed at an angle to increase heat exchange efficiency, and a drain plate is provided at the bottom of the heat exchanger to facilitate the discharge of condensation.

[0028] Hereinafter, a bypass downward discharge type indoor unit with excellent condensation prevention and improved cooling efficiency according to one embodiment of the present invention will be described in detail with reference to the attached drawings.

[0029] FIG. 1 is an overall perspective view of a bypass downward discharge type indoor unit with excellent condensation prevention and improved cooling efficiency according to an embodiment of the present invention, and FIG. 2 is a perspective view showing the state with the cover removed from the bypass downward discharge type indoor unit with excellent condensation prevention and improved cooling efficiency according to an embodiment of the present invention.

[0030] Referring to FIGS. 1 and 2, the present invention comprises an outer casing (100) installed in the upper space of an indoor space, a blower (200) embedded in the outer casing (100) that induces outside air to be introduced from the side of the outer casing (100) by rotational driving and blown to the upper part of the outer casing (100), and a heat exchanger (300) provided on the path through which outside air introduced from the side of the outer casing (100) flows toward the blower (200) to cool the outside air through heat exchange.

[0031] The lower part of the heat exchanger (300) is configured to include a drain plate (400) that collects condensate generated during the heat exchange process and collects it in one place for discharge.

[0032] At this time, on both sides of the internal space of the outer casing (100), a space partitioned from the heat exchanger is formed, and a bypass passage (120) is formed to guide the outside air introduced by the blower (200) to move after heat exchange and to discharge the heat-exchanged air downward.

[0033] Here, the outer casing (100) is configured to include an outside air inlet (110) into which outside air is introduced from the side of the outer casing (100), and an air distributor (130) that allows the introduced air to be cooled through the heat exchanger (300), pass through a blower (200), pass through the bypass passage (120), and be discharged downward.

[0034] At this time, on one side of the outer casing (100), a cover (140) that can be opened and closed is provided to maintain and repair the interior from the outer casing (100).

[0035] The above-mentioned outside air inlet (110) is configured to control the amount of outside air inflow when outside air is introduced, and includes an outside air damper (111) that can open and close and control the amount of outside air inflow by rotation.

[0036] The above-mentioned outside air damper (111) is configured to include a rotating damper (111a) which is formed in the shape of a plate and is rotatably provided in a direction perpendicular to the direction in which outside air is introduced, thereby allowing the amount of outside air to be introduced according to the angle of rotation, and an operating part (111b) provided on one side of the rotating damper (111a) which can adjust the angle of the rotating damper (111a).

[0037] Here, the control unit (111b) can be individually installed to control each of the multiple rotary dampers (111a).

[0038] Meanwhile, the bypass passage (120) is provided with a heat exchanger cover (140) that separates the location where the heat exchanger (300) is installed from the bypass passage (120) and prevents incoming outside air from flowing into the bypass passage (120) when passing through the heat exchanger (300).

[0039] The above air distributor (130) is configured to include a blower guide blade (131) provided to blow air to the lower part of an outer casing (100) so as to induce air passing through a bypass passage (120) to be discharged downward, a rotating body (132) provided along the outer circumference of the blower guide blade (131) to rotate the blower guide blade (131) as a whole, and a rotary drive motor (133) provided on one side of the rotating body (132) to drive the rotating body (132) to rotate.

[0040] Here, the rotating body (132) fixes a plurality of blower guide blades (131) integrally so that they rotate simultaneously.

[0041] And the rotary drive motor (133) is fixedly installed in the outer casing (100), and the rotation axis of the rotary drive motor (133) is connected to the blower guide blade (131), so that the blower guide blade (131) rotates by the rotational force of the rotary drive motor (133) and the blower can be evenly discharged into the indoor space.

[0042] At this time, the rotary drive motor (133) may be a servo motor capable of speed control, or a reduction gear may be installed on the motor to control the blower guide blade (131) to rotate at an appropriate speed.

[0043] As a result, the air introduced by the blower (200) passes through the heat exchanger (300) to be heat-exchanged, and then is guided to be discharged downward through the bypass passage (120) formed on one side of the outer casing (100), thereby preventing the condensate generated in the heat exchanger (300) from entering the room.

[0044] The blower (200) is configured to include a blower inlet (210) installed inside the outer casing (100) and rotated by power to pressurize and send outside air into the outer casing (100), and a blower discharge (220) provided above the blower inlet (210) to discharge air toward the upper side.

[0045] And between the air intake section (210) and the air exhaust section (220), it is configured to include an impeller (230) that is rotated by the power of a motor and generates pressure for external air to be introduced and discharged by rotation.

[0046] The above heat exchanger (300) is capable of cooling passing air by heat exchange and is configured to include a heat exchange coil (310) through which a refrigerant circulates, and heat dissipation fins (320) arranged in a thin plate shape along the area where the heat exchange coil (310) is provided, which can increase the heat exchange efficiency when air passes through the heat exchange coil (310).

[0047] And at the bottom of the heat exchanger (300), an inclined fixing part (330) is provided so that the heat exchanger (300) can be installed at an angle in the path where air moves.

[0048] As a result, the contact area of ​​the air passing through the heat exchanger (300) is increased, thereby maximizing cooling efficiency.

[0049] The drain plate (400) is configured to include a condensate recovery plate (410) provided at the bottom of the heat exchanger (300) for collecting and recovering condensate generated during the heat exchange process, and a condensate discharge hole (420) provided on one side of the condensate recovery plate (410) for discharging the recovered condensate.

[0050] As a result, when condensation occurs, it falls due to its own weight and is collected by the condensation recovery plate (410), and the collected condensation is guided to the condensation discharge hole (420) on one side and discharged, thereby collecting the condensation in the opposite direction to the upward direction of the airflow direction, so that the condensation can be prevented from flowing into the room.

[0051] FIG. 3 is an operation state diagram illustrating the state in which air is introduced and discharged in a bypass downward discharge type indoor unit with excellent condensation prevention and improved cooling efficiency according to an embodiment of the present invention.

[0052] Referring to FIG. 3, when the blower (200) is operated, outside air is introduced through the outside air inlet (110) formed on one side of the outer casing (100).

[0053] The amount of incoming outside air is controlled by the outside air damper (111), and the set amount of incoming air moves to the heat exchanger (300) and passes through the heat exchanger.

[0054] At this time, the heat exchanger (300) is installed at an angle, and is installed to maximize the amount of contact with air between the blower (200) side and the outside air inlet (110) along the direction of air flow.

[0055] As a result, outside air passes through the heat exchanger (300) and is cooled by heat exchange, and the cooled air passes through the blower (200) and moves upward.

[0056] The air moved upward by the blower (200) moves to a bypass passage (120) formed on one side of the outer casing (100) and is guided downward through the bypass passage (120).

[0057] Afterwards, the air passing through the bypass passage (120) is discharged downward through the air distributor (130) and cold air is supplied to prevent condensate from entering the room, while simultaneously enabling efficient cooling.

[0058] FIG. 4 is an embodiment illustrating a state in which a bypass downward discharge type indoor unit with excellent condensation prevention and improved cooling efficiency according to another embodiment of the present invention is further equipped with a blower guide in the bypass passage.

[0059] Referring to FIG. 4, the bypass passage (120) may further be provided with a blower guide (122) that guides air flowing into the bypass passage (120) toward the air distributor (130).

[0060] The above-mentioned air blower guide (122) is configured to include an air blower guide inclined plate (122a) that guides air flowing in from the blower (200) to move to the lower side of the bypass passage (120).

[0061] The airflow guiding inclined plate (122a) is provided to be inclined downward along the direction of air movement, thereby guiding the air flowing into the bypass passage (120) downward so that it moves quickly toward the air distributor (130) and is blown downward.

[0062] In addition, a blower acceleration plate (122b) may be further provided at the lower part of the blower induction inclined plate (122a), which is rotatably installed along the blower direction and can accelerate the blower by rotating and repeatedly moving toward the blower side by the blower.

[0063] At this time, between the blower induction inclined plate (122a) and the blower acceleration plate (122b), a repulsion magnet (122c) is provided that faces each other with the same polarity and pushes the blower acceleration plate away by magnetism when they come into close proximity.

[0064] When the above-mentioned blower acceleration plate (122b) is rotated toward the blower induction inclined plate (122a) by the blower generated from the blower (200), the blower is pushed downward by the repulsive force of the repulsive magnet (122c), thereby accelerating the blower and allowing it to be transported downward quickly.

[0065] Meanwhile, the above-mentioned air blower acceleration plate (122b) may be formed so that its lower portion is bent in a direction that guides the air blower downward.

[0066] As a result, the air velocity of the air delivered from the blower (200) can be rapidly directed downward and discharged toward the air distributor (130).

[0067] FIG. 5 is a diagram showing the operation state of a blower guide in a bypass passage in a bypass downward discharge type indoor unit with excellent condensation prevention and improved cooling efficiency according to another embodiment of the present invention.

[0068] Referring to FIG. 5, when air is introduced from the blower (200) into the bypass passage (120), the blower acceleration plate (122b) is rotated toward the blower induction inclined surface by the air, and when it approaches the blower induction inclined plate (122a), it is pushed by the repulsion magnet (122c) and the downward rotation operation is repeated.

[0069] As a result, the air flowing in from the blower (200) can be rapidly transferred to the lower air distributor (130), thereby increasing cooling efficiency.

[0070] As described above, the present invention relates to an indoor unit that introduces outside air and blows it in a cooled state through heat exchange, wherein the outside air is passed upward through a heat exchanger and moved from the top toward a lateral bypass passage, thereby inducing the airflow into the bypass passage and enabling it to be discharged downward toward an air distributor.

[0071] Accordingly, by preventing condensate generated in the heat exchanger from entering the room and rapidly discharging the heat-exchanged air, cooling efficiency can be increased. Explanation of the symbols

[0072] 100: Outer casing 110: Outside air inlet 111: Outdoor air damper 111a: Rotary damper 111b : Control panel 120 : Bypass passage 121: Heat exchanger cover 122: Supply induction section 122a: Blower induction inclined plate 122b: Blower acceleration plate 122c : Repulsion magnet 130 : Air distributor 131: Blower guide vane 132: Rotating body 133 : Rotary drive motor 140 : Cover 200 : Blower 210 : Blower Inlet 220: Blower exhaust section 230: Impeller 300: Heat exchanger 310: Heat exchange coil 320 : Heat dissipation fin 330 : Inclined fixing part 400: Drain plate 410: Condensate recovery plate 420: Condensate drain hole

Claims

Claim 1 The apparatus comprises: an outer casing (100); a blower (200) embedded in the outer casing (100) for introducing outside air and guiding it to be discharged into the room; a heat exchanger (300) provided in a path where outside air is introduced toward the blower (200) to cool the air; and a drain plate (400) provided at the bottom of the heat exchanger (300) to recover and discharge the generated condensate; wherein, on both sides of the outer casing (100), a bypass passage (120) is provided to guide the outside air introduced by the blower (200) to be discharged downward after passing through the heat exchanger (300) and the blower (200).The heat exchanger (300) is provided with a heat exchange coil (310) that cools the air passing through the heat exchanger (300) through which a refrigerant circulates, a heat dissipation fin (320) that can increase the heat exchange efficiency by widening the contact area of ​​the passing air, and an inclined fixing part (330) that can fix the heat exchanger (300) at an incline. The drain plate (400) includes a condensate recovery plate (410) provided at the bottom of the heat exchanger (300) to recover condensed water, and a condensate discharge hole (420) provided on one side of the condensate recovery plate (410) to discharge the recovered condensate to the outside. The heat exchanger cover (121) is partitioned from the bypass passage (120) to block the outside air from entering the bypass passage (120) when the outside air passes through the heat exchanger (300) and undergoes heat exchange while being introduced into the bypass passage (120). A bypass downward discharge type indoor unit characterized by comprising: a bypass passage (120) having a blower guide (122) that guides air flowing in from a blower (200) downward; the blower guide (122) including a blower guide inclined plate (122a) provided at the upper part of the bypass passage (120) and inclined downward along the blower direction; a blower acceleration plate (122b) rotatably provided at the lower part of the blower guide inclined plate (122a) to accelerate the blower downward by rotational movement; and a repulsion magnet (122c) provided facing each other with the same polarity between the blower acceleration plate (122b) and the blower guide inclined plate (122a), which pushes the blower acceleration plate (122b) by magnetism when the blower acceleration plate (122b) approaches the blower guide inclined plate (122a) due to the blower. Claim 2 In claim 1, the external casing (100) comprises an external air inlet (110) provided on one side of the external casing (100) for receiving external air, an air distributor (130) provided at the bottom of the external casing (100) for distributing and discharging air directed to a bypass passage (120) downward, and a cover (140) provided to be openable and closable from the external casing (100), characterized in that it is a bypass downward discharge type indoor unit. Claim 3 In paragraph 2, the bypass downward discharge type indoor unit is characterized in that the outside air inlet (110) is equipped with an outside air damper (111) capable of controlling the amount of outside air introduced. Claim 4 In claim 3, the outside air damper (111) is characterized by comprising a rotating damper (111a) that is rotatably configured in a plate shape and can adjust the amount of outside air inflow according to the angle of rotation, and an operating part (111b) configured on one side of the rotating damper (111a) to adjust the angle of the rotating damper (111a). Claim 5 delete Claim 6 In paragraph 2, the air distributor (130) is characterized by comprising a blower guide blade (131) that guides air passing through a bypass passage (120) to be discharged downward, a rotating body (132) that rotates the blower guide blade (131) overall, and a rotating drive motor (133) provided on one side of the rotating body (132) to drive the rotating body (132) to rotate the rotating body (132). Claim 7 In claim 1, the blower (200) comprises a blower inlet (210) that pressurizes outside air to flow into the interior of the outer casing (100), a blower outlet (220) provided above the blower inlet (210) to discharge air toward the upper side, and an impeller (230) provided between the blower inlet (210) and the blower outlet (220) to generate pressure that causes outside air to flow in and be discharged by rotation, thereby forming a bypass downward discharge type indoor unit.

Images