Duct type indoor unit having humidification function

Abstract

A duct type indoor unit having a humidification function includes a casing (1 ), a fan (2), a heat exchanger (3), and a humidification structure. The casing (1) includes an air inlet and an air outlet (22); the humidification structure, the heat exchanger (3) and the fan (2) are sequentially mounted from the air outlet (22) to an interior of the casing (1 ); a water receiving box ( 4) is arranged below the heat exchanger (3 ); and the humidification structure includes a humidification sheet assembly and a water pond assembly. The humidification sheet assembly includes a plurality of humidification sheets (10). The present invention is reasonable in design, convenient to use and capable of effectively humidifying outlet air of the indoor unit of the duct type air conditioner, and is simple in structure, convenient to install and maintain, and capable of simplifying a production process, reducing production cost and improving solving benefits.

Description

Duct-type indoor unit with humidification function Technical Field

[0001] This invention relates to an air conditioning device, and more particularly to a duct-type indoor unit, specifically a duct-type indoor unit with a humidification function. Background Technology

[0002] Ductless indoor units are widely used due to their advantages such as easy installation and uniform airflow. To improve user comfort, humidification functions have been gradually introduced into these ductless air conditioners. However, current humidification structures mostly involve installing the humidification module inside the indoor unit. This not only increases structural complexity and production costs but also makes maintenance inconvenient; therefore, improvements are needed as soon as possible.

[0003] Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a ducted indoor unit with humidification function, which simplifies the structure, facilitates installation, and improves humidification performance. Furthermore, it can be implemented through simple modifications to existing ducted air conditioner indoor units without humidification function, thereby significantly reducing production costs, simplifying maintenance, and promoting widespread adoption.

[0005] The technical solution of this invention is:

[0006] A ducted indoor unit with humidification function includes a casing, a fan, a heat exchanger, and a humidification structure;

[0007] The housing includes an air inlet and an air outlet; the humidification structure, heat exchanger, and fan are installed sequentially from the air outlet into the housing; a water collection box is provided below the heat exchanger;

[0008] The humidification structure includes a humidification plate assembly and a water tray assembly;

[0009] The humidifying sheet assembly includes multiple humidifying sheets; the humidifying sheets are thin and arranged vertically on the connecting rod;

[0010] The water tray assembly includes an upper water tray and a lower water tray; the upper water tray is a box-shaped structure with an open top; the lower water tray is a rectangular box-shaped structure with an open top and one side; the upper water tray is placed inside the lower water tray.

[0011] The humidifying plate assembly is placed inside the water inlet tray; the water inlet tray is equipped with a water inlet pipe;

[0012] The lower edge of the open side of the drain pan is provided with a guide plate; the guide plate is inclined downwards towards the drain pan and overlaps the water receiving box.

[0013] Furthermore, there are two fans arranged in parallel; there are two heat exchangers connected to each other in a vertical V-shape, with their tips facing the air outlet.

[0014] Furthermore, the humidifying plate is T-shaped with a downward protrusion at its right end; the end of the protrusion is pointed; the humidifying plate has a dividing groove in the middle; the dividing groove is an obtuse-angled V-shape, vertically arranged, and its opening faces the right side of the humidifying plate; the left side of the humidifying plate has a connecting groove in its recessed area, which can be engaged with the connecting rod; the two ends of the connecting rod are fixed to the two ends of the upper water tray, so that the lower part of the humidifying plate is placed inside the upper water tray, and the protrusion is located outside the upper water tray.

[0015] Furthermore, the humidifying sheet is made of composite fiber, and has fixing grooves on its left, right and lower ends, which are respectively snapped onto three fixing rods; the fixing rods are serrated, which can make each humidifying sheet snap into the grooves, ensuring that the humidifying sheets are parallel to each other and evenly spaced.

[0016] Furthermore, the upper corner of the water tray is provided with an overflow hole that runs through both the inside and outside; the height of the water tray is less than the depth of the water tray and is connected to the water tray through a bracket I; the upper edge of the water tray is provided with a fin, which can overlap the upper edge of the water tray and separate the bottom of the water tray from the bottom of the water tray.

[0017] Furthermore, it also includes an air guide plate with an obtuse V-shaped cross-section and a length equivalent to the open side of the drain pan, so that the upper sidewall of the air guide plate is installed on the open side of the drain pan, and its lower sidewall is suspended above and in front of the air guide plate.

[0018] Furthermore, the humidifying plate assembly is installed on one side of the water tray; the upper sidewall of the air guide plate is stepped, and its lower end is on the same side as the humidifying plate assembly.

[0019] Furthermore, the outer casing is composed of a bottom plate, a top plate, side plates, and an outer panel connected together, and the front panel has an opening; the drain pan is installed on the bottom plate so that the opening corresponds to the humidifying plate assembly.

[0020] Furthermore, the water inlet pipe is installed on the water inlet seal plate; the water inlet seal plate is connected to the right end of the drain pan, and its bottom end is connected to the bottom plate of the housing; the left end of the drain pan is connected to the bottom plate through bracket II.

[0021] Furthermore, a float switch assembly is provided on the water inlet pipe; the float switch assembly is installed inside the water inlet pan.

[0022] The beneficial effects of this invention are:

[0023] This invention is reasonably designed and easy to use. It can effectively humidify the air outlet of the indoor unit of a ducted air conditioner. Moreover, the invention has a simple structure, is easy to install and maintain, can simplify the production process, reduce production costs, and improve efficiency. Attached Figure Description

[0024] Figure 1 is a partial cross-sectional schematic diagram of the present invention.

[0025] Figure 2 is an exploded view of the humidifier assembly.

[0026] Figure 3 is a schematic diagram of the water pan assembly explosion.

[0027] Figure 4 is a schematic diagram of the appearance of the present invention.

[0028] Wherein: 1-Casing; 2-Fan; 3-Heat exchanger; 4-Water receiving box; 5-Air guide plate; 6-Flow guide plate; 7-Bracket II; 8-Base plate; 9-Water drain pan; 10-Humidifier plate; 11-Connecting rod; 12-Water inlet pipe; 13-Water inlet seal plate; 14-Fixing rod; 15-Fixing groove; 16-Dividing groove; 17-Protrusion; 18-Connecting groove; 19-Water supply pan; 20-Bracket I; 21-Float switch assembly; 22-Air outlet; 23-Overflow hole. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] As shown in Figures 1 to 4.

[0031] A duct-type indoor unit with humidification function includes a casing 1, a fan 2, a heat exchanger 3, and a humidification structure.

[0032] The housing 1 includes an air inlet and an air outlet 22. The air outlet 22 is located on one side of the housing 1, while the air inlet can be located on the bottom plate 8 of the housing 1. The humidification structure, heat exchanger 3, and fan 2 are sequentially installed from the air outlet 22 into the housing 1, with the fan 2's air outlet facing the heat exchanger 3. This allows the air driven by the fan 2 to flow sequentially through the heat exchanger 3 and the humidification structure, regulating the air temperature and humidity. A water collection box 4 is located below the heat exchanger 3 to collect the condensate produced by the heat exchanger 3. Preferably, there are two fans 2, arranged in parallel to provide sufficient power. There are two heat exchangers 3 connected together in a vertical V-shape, with their tips facing the air outlet, which improves the heat exchange effect.

[0033] The humidification structure includes a humidification plate assembly and a water tray assembly.

[0034] The water tray assembly includes an upper water tray 19 and a lower water tray 9. The upper water tray 19 is a box-shaped structure with an open top. The lower water tray 9 is a rectangular box-shaped structure with an open top and one side, resembling a "winnowing basket". The height of the upper water tray 19 is less than the depth of the lower water tray 9, and it is connected to the lower water tray 9 via a bracket I20. Preferably, the upper edge of the upper water tray 19 has a flange that can overlap the upper edge of the lower water tray 9, allowing the bottom of the upper water tray 19 to separate from the bottom of the lower water tray, facilitating the flow of water accumulated in the lower water tray 9. The upper water tray 19 is provided with a water inlet pipe 12 for connecting to an external water source, such as tap water, to fill the upper water tray 19. This water inlet pipe 12 can be installed on a water inlet sealing plate 13. The water inlet sealing plate 13 is a short plate that can be installed at one end of the lower water tray 19, with its lower end fixed to the bottom plate 8 of the housing 1. The other end of the drain pan 9 can be fixed to the bottom plate 8 of the housing 1 via bracket II7, so that the bottom of the drain pan 9 is higher than the water receiving box 4. The upper corner of the upper water pan 19 is provided with an overflow hole 23 that extends through both the inside and outside, allowing excess water to flow into the drain pan 9 through the overflow hole 23, preventing overflow. A guide plate 6 is provided on the lower edge of the open side of the drain pan 9. This guide plate 6 slopes downwards towards the drain pan 9 and rests on the water receiving box 4, allowing accumulated water in the drain pan 9 to flow into the water receiving box 4 along the guide plate 6, preventing overflow and affecting normal use.

[0035] The humidifying sheet assembly includes multiple humidifying sheets 10. Each humidifying sheet 10 can be made of composite fibers and has strong water absorption. Each humidifying sheet 10 has the same shape, being a T-shaped thin sheet with a downward-pointing protrusion 17 on its right side. The end of the protrusion 17 is pointed, allowing excess water on the humidifying sheet 10 to flow out from this end. A dividing groove 16 is provided in the middle of each humidifying sheet 10. This dividing groove 16 is an obtuse-angled V-shape, vertically positioned, with its opening facing the right side of the humidifying sheet 10, allowing excess water on the humidifying sheet 10 to flow from the left side of the dividing groove 16 to its right side, and then out along the protrusion 17. Preferably, the angle of the dividing groove 16 can be 120° to 130°. A connecting groove 18 is provided in the recessed area on the left side of each humidifying sheet 10. This connecting groove 18 is flat and rectangular, and can be engaged with a long connecting rod 11, allowing the humidifying sheets 10 to be arranged vertically. The two ends of the connecting rod 11 are fixed to the two ends of the upper water tray 19, so that the lower part of the humidifying plate 10 is placed inside the upper water tray 19, and the protrusion 17 is located outside the upper water tray 19 and points towards the lower water tray 9. This allows the humidifying plate 10 to absorb water from the upper water tray 19 for humidification. Simultaneously, excess unevaporated water can flow out from the protrusion 17 into the lower water tray 9, and impurities on the humidifying plate 10 are carried away with the water flow, ensuring the cleanliness of the water in the upper water tray 19.

[0036] Furthermore, the humidifying pad 10 is provided with fixing grooves 15 on its left side, right side, and lower end, and is respectively engaged with three fixing rods 14. The fixing rods 14 are serrated, allowing each humidifying pad 10 to be engaged in the grooves, ensuring that the humidifying pads are parallel to each other and evenly spaced. The fixing grooves 15 and the fixing rods 14 have the same cross-sectional shape, both being flat rectangles, allowing for easy connection between them.

[0037] The invention also includes an air guide plate 5. The air guide plate 5 has an obtuse V-shaped cross-section, and its length is approximately equal to the open side of the drain pan 9. This allows the upper sidewall of the air guide plate 5 to be installed on the open side of the drain pan 9, while its lower sidewall is suspended above and in front of the guide plate 6. This ensures that the airflow is directed along the air guide plate 5 towards the humidifier assembly and prevents air from the outlet from directly blowing onto the guide plate 6, thus affecting the normal flow of water. The angle of the air guide plate 5 can be 135° to 150°.

[0038] The present invention also includes a float switch assembly 21. This float switch assembly 21 is disposed in the water inlet tray 19 and connected to the water inlet pipe 12, enabling automatic control of water inlet. The float switch assembly 21 and the humidifying plate assembly are respectively installed on both sides of the water inlet tray 19. Therefore, the upper sidewall of the air guide plate 5 is stepped, with its lower end corresponding to the humidifying plate assembly and its higher end corresponding to the float switch assembly 21. This ensures that the airflow blows towards the humidifying plate assembly while also shielding the float switch assembly from the influence of the airflow. Preferably, the float switch assembly 21 can be a Fuji Seiko C-0200105.

[0039] Both bracket I20 and bracket II7 are sheet metal parts, which can be designed into suitable shapes and sizes as needed.

[0040] This invention is rationally designed and easy to use. It can effectively humidify the indoor air outlet of a ducted air conditioner, improving user comfort. Furthermore, the invention has a simple structure, is easy to install and maintain, and makes full use of the original water collection box and other components of the indoor unit, thereby simplifying the production process, reducing production costs, and improving efficiency.

[0041] All parts not covered in this invention are the same as or can be implemented using existing technologies.

Claims

1. A ducted indoor unit with humidification function, comprising a casing, a fan, a heat exchanger, and a humidification structure, characterized in that: The housing includes an air inlet and an air outlet; the humidification structure, heat exchanger, and fan are installed sequentially from the air outlet into the housing; a water collection box is provided below the heat exchanger; The humidification structure includes a humidification plate assembly and a water tray assembly; The humidifying sheet assembly includes multiple humidifying sheets; the humidifying sheets are thin and arranged vertically on the connecting rod; The water tray assembly includes an upper water tray and a lower water tray; the upper water tray is a box-shaped structure with an open top; the lower water tray is a rectangular box-shaped structure with an open top and one side; the upper water tray is placed inside the lower water tray. The humidifying plate assembly is placed inside the water inlet tray; the water inlet tray is equipped with a water inlet pipe; The lower edge of the open side of the drain pan is provided with a guide plate; the guide plate is inclined downwards towards the drain pan and overlaps the water receiving box.

2. The duct-type indoor unit with humidification function according to claim 1, characterized in that: There are two fans arranged in parallel; there are two heat exchangers connected to each other in a vertical V-shape, with their tips pointing towards the air outlet.

3. The duct-type indoor unit with humidification function according to claim 1, characterized in that: The humidifying plate is T-shaped with a downward protrusion on its right side; the end of the protrusion is pointed; the middle of the humidifying plate has a dividing groove; the dividing groove is obtuse-angled V-shaped, vertically arranged, and its opening faces the right side of the humidifying plate; the left side of the humidifying plate has a connecting groove in its recessed area, which can be snapped onto the connecting rod; the two ends of the connecting rod are fixed to the two ends of the upper water tray, so that the lower part of the humidifying plate is placed inside the upper water tray and the protrusion is located outside the upper water tray.

4. The duct-type indoor unit with humidification function according to claim 1, characterized in that: The humidifying sheet is made of composite fiber, and has fixing grooves on its left, right and lower ends, which are respectively snapped onto three fixing rods. The fixing rods are serrated, which can make each humidifying sheet snap into the grooves, ensuring that the humidifying sheets are parallel to each other and evenly spaced.

5. The duct-type indoor unit with humidification function according to claim 1, characterized in that: The upper corner of the water tray is provided with an overflow hole that runs through the inside and outside; the height of the water tray is less than the depth of the water tray and is connected to the water tray through a bracket I; the upper edge of the water tray is provided with a fin, which can overlap the upper edge of the water tray and separate the bottom of the water tray from the bottom of the water tray.

6. The duct-type indoor unit with humidification function according to claim 1, characterized in that: It also includes an air guide plate with an obtuse V-shaped cross-section and a length that is equivalent to the open side of the drain pan, so that the upper sidewall of the air guide plate is installed on the open side of the drain pan and the lower sidewall is suspended above and in front of the air guide plate.

7. The duct-type indoor unit with humidification function according to claim 1, characterized in that: The humidifying plate assembly is installed on one side of the water tray; the upper sidewall of the air guide plate is stepped, and its lower end is on the same side as the humidifying plate assembly.

8. The duct-type indoor unit with humidification function according to claim 1, characterized in that: The water inlet pipe is installed on the water inlet seal plate; the water inlet seal plate is connected to the right end of the drain pan, and its bottom end is connected to the bottom plate of the housing; the left end of the drain pan is connected to the bottom plate through bracket II.

9. The duct-type indoor unit with humidification function according to claim 1, characterized in that: The water inlet pipe is equipped with a float switch assembly; the float switch assembly is installed inside the water inlet pan.