WO-2026091288-A1 - INDOOR UNIT AND AIR HANDLING UNIT

WO2026091288A1WO 2026091288 A1WO2026091288 A1WO 2026091288A1WO-2026091288-A1

Abstract

The present application provides an indoor unit and an air handling unit, wherein the indoor unit (100) comprises a housing assembly (110), a heat exchanger (120) and a sensor (130). The housing assembly (110) comprises a housing main body (111), a first plate (112) and a second plate (113), wherein the housing main body (111) is provided with a first opening (1111); the first plate (112) and the second plate (113) are connected to the housing main body (111), and the first plate (112) and the second plate (113) jointly cover the first opening (1111); the heat exchanger (120) is arranged in the housing assembly (110), and the heat exchanger (120) comprises a heat exchange pipe (121) for transporting a heat exchange medium, an external connector (122) being provided on the side of the heat exchange pipe (121) facing the first opening (1111), and the external connector (122) running through the first plate (112); and the sensor (130) is configured to measure the concentration of the heat exchange medium around itself, and the sensor (130) is disposed in the housing assembly (110) and is connected to the first plate (112) and/or the second plate (113).

Inventors

XIONG, Dazhen
PANG, Junwen
WANG, FENG
XIAO, Huode

Assignees

广东美的制冷设备有限公司

Dates

Publication Date: 20260507
Application Date: 20241227
Priority Date: 20241031

Claims (16)

Indoor unit, including: A housing assembly includes a housing body, a first plate, and a second plate. The housing body has a first opening, and the first plate and the second plate are connected to the housing body, with the first plate and the second plate together covering the first opening. A heat exchanger, disposed within the shell assembly, includes heat exchange piping for transporting the heat exchange medium, and an external connector is provided on the side of the heat exchange piping facing the first opening, the external connector passing through the first plate; and A sensor for detecting the concentration of the heat exchange medium in its surroundings, the sensor being disposed within the housing assembly and connected to the first plate and/or the second plate.
The indoor unit as claimed in claim 1, wherein the plane perpendicular to the axial direction of the first opening is a projection plane, the heat exchanger forms a first orthographic projection on the projection plane, the sensor forms a second orthographic projection on the projection plane, and the first orthographic projection and the second orthographic projection at least partially overlap.
The indoor unit as described in claim 1 or 2, wherein, The sensor is connected to the first plate and is located on the side of the first plate near the second plate; or The sensor is connected to the second plate, and the sensor is located on the side of the second plate near the external connector; or The sensors are respectively connected to the first plate and the second plate. When viewed along the axial direction of the first opening, the sensors are at least partially overlapped with the first plate and at least partially overlapped with the second plate.
The indoor unit as described in any one of claims 1 to 3 further includes a first drip tray, wherein, The first drip tray is disposed within the housing assembly and located on one side of the heat exchanger along a first direction, the first direction being perpendicular to the axial direction of the first opening. The first drip tray is used to collect condensate falling from the outer wall of the heat exchanger along the first direction; and Along the first direction, the sensor is located on the side of the first water receiving tray near the external connector.
The indoor unit as described in claim 4 further includes a second water drip tray, wherein... The second water receiving tray is disposed inside the housing assembly and located on one side of the heat exchanger along the second direction, which is perpendicular to the first direction and the axial direction of the first opening. The second water receiving tray is used to receive condensate falling along the second direction on the outer wall of the heat exchanger. The indoor unit has a first installation state and a second installation state. In the first installation state, the first water tray is located below the heat exchanger. In the second installation state, the second water tray is located below the heat exchanger. Along the second direction, the sensor is located on the side of the second water receiving tray near the external connector; or, the second plate has a first side arranged opposite to the external connector along the second direction, and the sensor is located on the side of the external connector near the first side.
The indoor unit as described in claim 4 or 5, wherein the first water tray includes a side plate near the first opening, the sensor is located on the side of the side plate facing the external connector, and one end of the sensor abuts against the side wall of the side plate away from the first opening.
The indoor unit as described in claim 6, wherein, The sensor includes a sensing body and a fixing bracket, the fixing bracket connecting the first plate and/or the second plate, and the sensing body connecting to the fixing bracket; and The fixed bracket has a stepped portion at one end facing the side plate. The stepped portion has a first stepped surface that fits against the first plate and/or the second plate and a second stepped surface that fits against the side wall of the side plate away from the first opening. The second stepped surface is located on the side of the first stepped surface closer to the heat exchanger.
The indoor unit according to any one of claims 1 to 7, wherein the sensor includes a sensing body and a fixed bracket, the fixed bracket is connected to the first plate and/or the second plate, and the sensing body is connected to the fixed bracket.
The indoor unit as described in claim 8, wherein, The sensing body is connected to the side of the fixed bracket facing the heat exchanger; and/or The sensing body includes a detection port suitable for conducting heat exchange medium, and the detection port is disposed away from the fixed bracket.
The indoor unit as described in claim 8 or 9, wherein the fixed bracket is connected to the first plate and located on the side of the first plate near the second plate, and the sensing body includes a wiring terminal located on the side of the sensing body away from the second plate.
The indoor unit as described in any one of claims 8 to 10, wherein, The fixed bracket includes a water-blocking part, which is disposed on one side of the sensing body along the axis perpendicular to the first opening; or The fixed bracket includes a water-blocking part, which is located on one side of the sensing body along the axis perpendicular to the first opening, and the water-blocking part is arranged at an angle.
The indoor unit as described in any one of claims 1 to 11, wherein, The second plate is detachably connected to the first plate. The first plate includes a first connecting side that connects to the second plate, and the second plate includes a second connecting side that connects to the first plate. The first connecting side and the second connecting side are stacked on top of each other. The first connection side is located on the side of the second connection side facing the heat exchanger, or the second connection side is located on the side of the first connection side facing the heat exchanger.
The indoor unit as described in claim 12, wherein, The first connecting side is located on the side of the second connecting side facing the heat exchanger. The sensor is connected to the first connecting side. The indoor unit also includes a first connecting member, which passes through the first connecting side and connects to the sensor. The second connecting side is provided with a clearance groove to avoid the first connecting member; or The second connection side is located on the side of the first connection side facing the heat exchanger. The sensor is connected to the second connection side. The indoor unit also includes a second connector. The second connector passes through the second connection side and connects to the sensor. The first connection side is provided with a clearance groove for avoiding the first connector.
The indoor unit as described in claim 12 or 13 further includes a third connector, wherein the third connector passes through the second connection side and the first connection side and connects to the sensor.
The indoor unit as described in any one of claims 1 to 14, wherein the direction perpendicular to the axial direction of the first opening is a first direction, the direction perpendicular to both the first direction and the axial direction is a second direction, the first plate is located on one side of the first opening along the first direction and on one side of the first opening along the second direction, the side of the first plate opposite to the first direction is a second side, the side opposite to the second direction is a third side, the second side and the third side are arranged adjacent to each other, and the second plate has a first side connecting the third side and a fourth side connecting the second side.
Air handling unit, including: The indoor unit according to any one of claims 1-15; Outdoor unit; and A piping assembly that connects the indoor unit and the outdoor unit.

Description

Indoor unit and air handling unit Cross-reference of related applications This application claims priority to Chinese patent applications filed on October 31, 2024, with application number 202411546706.8 entitled "Indoor Unit and Air Handling Unit" and application number 202422658137.8 entitled "Indoor Unit and Air Handling Unit", the entire contents of which are incorporated herein by reference. Technical Field This application relates to the field of air conditioning technology, and in particular to an indoor unit and an air handling unit. Background Technology Refrigerant leaks can affect the normal operation of air conditioners, endanger health, pose safety hazards, and pollute the environment. In related technologies, refrigerant sensors used to detect leaks are connected to the air conditioner heat exchanger or the air conditioner drip tray. The placement of the refrigerant sensor is affected by the location of the heat exchanger, making installation and maintenance difficult and inflexible, and unable to accommodate different heat exchanger locations or various installation scenarios for indoor units. Summary of the Invention The main objective of this application is to provide an indoor unit and air handling unit that can at least partially solve one of the above-mentioned technical problems. To achieve the above objectives, the indoor unit according to the first aspect of this application includes: A housing assembly includes a housing body, a first plate, and a second plate. The housing body has a first opening, and the first plate and the second plate are connected to the housing body, with the first plate and the second plate together covering the first opening. A heat exchanger, disposed within the shell assembly, includes heat exchange piping for transporting the heat exchange medium, and an external connector is provided on the side of the heat exchange piping facing the first opening, the external connector passing through the first plate; and A sensor for detecting the concentration of the heat exchange medium around itself, the sensor being disposed within the housing assembly and connected to the first plate and/or the second plate. In some embodiments, a plane perpendicular to the axial direction of the first opening is a projection plane, the heat exchanger forms a first orthographic projection on the projection plane, the sensor forms a second orthographic projection on the projection plane, and the first orthographic projection and the second orthographic projection at least partially overlap. In some embodiments, the sensor is connected to the first plate and is located on the side of the first plate near the second plate. In some embodiments, the sensor is connected to the second plate and is located on the side of the second plate near the external connector. In some embodiments, the sensor is connected to the first plate and the second plate respectively. When viewed along the axial direction of the first opening, the sensor is at least partially superimposed on the first plate and at least partially superimposed on the second plate. In some embodiments, the indoor unit further includes a first drip tray disposed within the housing assembly and located on one side of the heat exchanger along a first direction, the first direction being perpendicular to the axial direction of the first opening, the first drip tray being used to receive condensate falling from the outer wall of the heat exchanger along the first direction; and, along the first direction, the sensor is located on the side of the first drip tray near the external connector. In some embodiments, the indoor unit further includes a second drip tray disposed within the housing assembly and located on one side of the heat exchanger along a second direction, the second direction being perpendicular to both the first direction and the axial direction of the first opening. The second drip tray is used to collect condensate falling along the second direction from the outer wall of the heat exchanger. The indoor unit has a first installation state and a second installation state. In the first installation state, the first drip tray is located below the heat exchanger. In the second installation state, the second drip tray is located below the heat exchanger. Furthermore, along the second direction, the sensor is located on the side of the second drip tray near the external connector. In some embodiments, the second plate has a first side arranged opposite to the external connector along the second direction, and the sensor is located on the side of the external connector closer to the first side. In some embodiments, the first water receiving tray includes a side plate near the first opening, the sensor is located on the side of the side plate facing the external connector, and one end of the sensor abuts against the side wall of the side plate away from the first opening. In some embodiments, the sensor includes a sensing body