Heat exchange unit and air handling unit

Abstract

The utility model relates to the field of air treatment, in particular to a heat exchange unit and an air treatment unit. The heat exchange unit comprises a shell, a heat exchange assembly and a sensing assembly, a containing cavity is formed in the shell, the shell comprises a first side plate, the first side plate is provided with a first opening communicated with the containing cavity, the heat exchange assembly is arranged in the containing cavity, and the sensing assembly comprises a fixing support and a sensor. The fixing support is detachably connected to the first side plate, the fixing support covers the first open hole, the sensor is used for detecting heat exchange media around the sensor, and the sensor is located in the containing cavity and connected to the side, facing the containing cavity, of the fixing support. The fixing support is configured to enable the sensor to extend out of the containing cavity from the first opening along with the fixing support after the fixing support is detached from the first side plate. The sensor in the heat exchange unit is easy to overhaul and disassemble.

Description

Technical Field

[0001] The utility model relates to the field of air treatment, in particular to a heat exchange unit and an air treatment unit. Background Art

[0002] A heat exchange unit is capable of controlling the temperature of the external environment through heat exchange. Specifically, a heat exchange assembly is provided within the unit, and a heat exchange medium is provided within the heat exchange piping of the heat exchange assembly. The heat exchange function of the heat exchange assembly is achieved through the evaporation or condensation of the heat exchange medium. The heat exchange assembly has multiple sets of pipe connection structures, and the heat exchange medium is prone to leakage at the pipe connections. When the heat exchange medium is a flammable gas, leakage of the heat exchange medium poses a significant safety hazard. Therefore, sensors are required to monitor the concentration of the heat exchange medium within the heat exchange unit in real time to ensure that any leakage of the heat exchange medium can be detected and handled immediately.

[0003] The sensors inside the heat exchanger are prone to condensation, blocking their ports and causing them to fail. Therefore, regular sensor maintenance is necessary. This requires removing the entire side panel of the heat exchanger's housing to remove the sensor. This sensor maintenance method is inconvenient, time-consuming, and labor-intensive. Utility Model Content

[0004] The main purpose of the utility model is to provide a heat exchange unit and an air handling unit, aiming to solve the technical problem that the sensor inside the heat exchange unit is inconvenient to repair.

[0005] To achieve the above objectives, the present invention proposes a heat exchange unit, comprising:

[0006] A housing having an accommodating cavity therein, the housing comprising a first side plate, the first side plate being provided with a first opening communicating with the accommodating cavity;

[0007] A heat exchange component is disposed in the accommodating cavity;

[0008] a sensing assembly, comprising a fixing bracket and a sensor, wherein the fixing bracket is detachably connected to the first side plate and covers the first opening; the sensor is used to detect the heat exchange medium around itself, and the sensor is located in the accommodating cavity and connected to a side of the fixing bracket facing the accommodating cavity;

[0009] The fixing bracket is configured to be removed from the first side plate so that the sensor extends out of the accommodating cavity through the first opening along with the fixing bracket.

[0010] In some embodiments, the heat exchange assembly includes a heat exchange pipeline for transmitting a heat exchange medium. The heat exchange pipeline is provided with an external joint on a side facing the first side plate, and the external joint is passed through the first side plate.

[0011] In some embodiments, the first side panel includes a first plate body and a second plate body connected to each other, the external connector is provided through the first plate body, and the first opening is provided in the second plate body.

[0012] In some embodiments, the heat exchange unit further includes a first water receiving tray, which is disposed on one side of the accommodating cavity along the first direction to collect condensed water falling from the outer wall of the heat exchange component along the first direction;

[0013] Along the first direction, the second plate is located on a side close to the first water receiving tray.

[0014] In some embodiments, the heat exchange unit further includes a second water receiving tray, which is provided on one side of the heat exchange component along the second direction to collect condensed water falling from the outer wall of the heat exchange component along the second direction;

[0015] Along the second direction, the second plate is located on a side close to the second water receiving tray.

[0016] In some embodiments, the second plate is provided with a first water guide hole, the first water guide hole being used to guide condensed water out of the first water receiving tray. A plane perpendicular to the first direction is a first projection plane. The sensor forms a first orthographic projection on the first projection plane. The first water guide hole forms a second orthographic projection on the first projection plane. When viewed along the axis of the first opening, the first orthographic projection and the second orthographic projection at least partially overlap.

[0017] and / or,

[0018] The second plate body is provided with a second water guide hole, which is used to guide the condensed water in the second water receiving tray. The plane perpendicular to the second direction is the second projection plane. The sensor forms a third orthographic projection on the second projection plane. The second water guide hole forms a fourth orthographic projection on the second projection plane. When observed along the axial direction of the first opening, the third orthographic projection and the fourth orthographic projection at least partially overlap.

[0019] In some embodiments, when viewed along the axis of the first opening, the sensor and the heat exchange component at least partially overlap.

[0020] In some embodiments, the fixed bracket includes a fixed plate, and the fixed plate includes an annular rib connected to the first side plate. When viewed along the axial direction of the first opening, the annular rib is arranged around the outer periphery of the first opening, and the annular rib abuts the side wall of the first side plate facing away from the accommodating cavity.

[0021] In some embodiments, the fixing plate includes a convex portion located on the inner side of the annular rib, the convex portion is arranged to protrude into the accommodating cavity, and the sensor is connected to a side of the convex portion facing the accommodating cavity.

[0022] In some embodiments, the fixed bracket also includes a cover plate, which is connected to the side of the annular rib facing away from the first side plate. An isolation cavity is formed between the cover plate and the fixed plate. When observed along the axial direction of the first opening, the sensor at least partially overlaps with the isolation cavity.

[0023] In some embodiments, the fixing bracket further comprises a heat insulating member, wherein the heat insulating member fills at least a portion of the space of the isolation cavity;

[0024] or,

[0025] The fixed bracket includes an insulation block and an insulation layer. One side of the insulation layer is in contact with the side wall of the cover plate facing the fixed plate, and the other side is in contact with the side wall of the annular rib facing the cover plate. The insulation block is arranged between the insulation layer and the fixed plate, or between the insulation layer and the cover plate.

[0026] In some embodiments, the heat exchange unit further includes an electrical control box, which is located outside the accommodating cavity and connected to the shell;

[0027] The heat exchange unit also includes a wire. The first side plate is provided with a first avoidance hole connected to the accommodating cavity. The wire is passed through the first avoidance hole. One end of the wire located in the accommodating cavity is electrically connected to the sensor, and the other end located outside the accommodating cavity is electrically connected to the electric control box.

[0028] In some embodiments, the fixing bracket is provided with a second avoidance hole, the second avoidance hole is located on a side of the first avoidance hole away from the accommodating cavity, and the wire is passed through the second avoidance hole.

[0029] In some embodiments, the first avoidance hole is connected to the first opening along one side perpendicular to the axis direction of the first opening;

[0030] and / or,

[0031] The fixing bracket is provided with a second avoidance hole, which is located on the side of the first avoidance hole away from the accommodating cavity, and the wire is passed through the second avoidance hole; the second avoidance hole is provided at the outer periphery of the fixing bracket and one side is open.

[0032] In some embodiments, the electric control box is connected to the first side panel, and the electric control box includes a wiring board, the wires are passed through the wiring board, and the wiring board is located on a side of the electric control box facing the first opening;

[0033] or,

[0034] The shell also includes a second side panel, which is located on one side of the first side panel and arranged crosswise with the first side panel; the electric control box is connected to the second side panel, and the electric control box includes a terminal block, the wires are passed through the terminal block, and the terminal block is located on the side of the electric control box facing the first side panel.

[0035] In some embodiments, the heat exchange unit includes a heat insulation plate, the heat insulation plate is attached to the side wall of the first side plate facing the accommodating cavity, the heat insulation plate is provided with a second opening, and the second opening is connected to the first opening;

[0036] The sensor at least partially extends out of the second opening in a direction close to the heat exchange component.

[0037] An embodiment of the second aspect of the present invention further provides an air handling unit, comprising any one of the above-mentioned heat exchange units.

[0038] Compared with the prior art, the beneficial effects of the present invention are:

[0039] In the technical solution of the present invention, a heat exchange unit is provided that facilitates the maintenance of the sensor. When the sensor in the accommodating cavity needs to be repaired, the fixed bracket is first removed from the first side panel. At this time, the fixed bracket can be moved in a direction away from the first side panel. At the same time, since the sensor is connected to the fixed bracket, during the process of the fixed bracket moving in a direction away from the first side panel, the fixed bracket can bring the sensor out of the accommodating cavity through the first opening, thereby realizing the maintenance of the sensor.

[0040] After the sensor is repaired, the sensor is first reconnected to the fixing bracket, and then the fixing bracket is moved toward the first side plate. After the fixing bracket is aligned with and covers the first opening, the fixing bracket is connected to the first side plate. At this time, the sensor can be re-placed into the accommodating cavity through the first opening, and the concentration of the heat exchange medium in the accommodating cavity can be monitored in real time using the sensor.

[0041] In the heat exchange unit provided by the present invention, when the sensor is to be inspected and repaired, it is sufficient to remove the fixed bracket connected to the sensor without removing the entire first side panel. Compared with removing the first side panel, it is more convenient to remove the smaller fixed bracket and the maintenance efficiency is higher. At the same time, since the sensor is connected to the inner side of the fixed bracket, the sensor can be taken out simultaneously after the fixed bracket is removed. Compared with the structure in which the sensor is connected to the first side panel or is provided on the heat exchange component, in this solution, there is no need to remove the sensor from the first side panel or the heat exchange component after the fixed bracket is removed, so the removal efficiency of the sensor is higher. After the inspection and repair of the sensor is completed, the sensor can be reconnected to the fixed bracket, and the fixed bracket can be reconnected to the first side panel, while ensuring that the fixed bracket covers the first opening. During the above installation process, the sensor can be installed and fixed outside the shell, which is more convenient for the operator to operate compared to the structure in which the operator's hand extends through the first opening into the shell to install the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0043] Figure 1 A schematic diagram of the overall structure of a heat exchange unit provided by an embodiment of the present invention in a first installation state;

[0044] Figure 2 A schematic diagram of the overall structure of a heat exchange unit provided by an embodiment of the present invention in a second installation state;

[0045] Figure 3 An exploded view of the overall structure of a heat exchange unit provided by an embodiment of the present invention in a first installation state;

[0046] Figure 4 A schematic diagram of the internal structure of a heat exchange unit provided by an embodiment of the present invention in a first installation state;

[0047] Figure 5 A state diagram of a heat exchange unit provided by an embodiment of the present invention when the sensor assembly is removed in a first installation state;

[0048] Figure 6 A schematic diagram of the overall structure of a heat exchange unit provided by another embodiment of the present invention in a first installation state;

[0049] Figure 7An exploded view of the overall structure of a fixing bracket in a heat exchange unit provided by an embodiment of the present invention at a first viewing angle;

[0050] Figure 8 This is an exploded view of the overall structure of the fixing bracket in the heat exchange unit provided by one embodiment of the present utility model at a second viewing angle.

[0051] Description of Figure Numbers:

[0052] 100, housing;

[0053] 110, accommodating chamber; 120, first side panel; 130, second side panel;

[0054] 121. First plate; 122. Second plate;

[0055] 1221, first opening; 1222, first water guide hole; 1223, second water guide hole; 1224, first avoidance hole;

[0056] 200, heat exchange component;

[0057] 210, heat exchange pipeline; 220, external connector;

[0058] 300, sensor component;

[0059] 310, fixing bracket; 320, sensor;

[0060] 311. Fixing plate; 312. Cover plate; 313. Isolation cavity; 314. Heat insulation element; 315. Second avoidance hole;

[0061] 3111, annular rib; 3112, convex portion;

[0062] 3141, insulation block; 3142, insulation layer;

[0063] 400, first water receiving tray;

[0064] 500, second water tray;

[0065] 600, electric control box;

[0066] 610, terminal block;

[0067] 700, wire;

[0068] 800, thermal insulation board;

[0069] 810, second opening;

[0070] X, first direction;

[0071] Y, second direction.

[0072] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0073] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0074] The heat exchange unit is equipped with a sensor for sensing leaked heat exchange medium. In related art, the sensor is installed on the heat exchange component of the heat exchange unit. When the sensor needs to be repaired, the entire side panel of the heat exchange unit opposite the sensor needs to be removed, which is a cumbersome operation. This is especially difficult when the side panel to be removed is connected to other structures, such as a drainage pipe or an external heat exchange pipe. This requires first removing the drainage pipe or the external heat exchange pipe before removing the side panel, making the operation difficult and inefficient.

[0075] Based on this, refer to Figures 1 to 8 In order to solve the technical problem that the sensor 320 inside the heat exchange unit is inconvenient to repair, an embodiment of the present invention provides a heat exchange unit. Figure 1 、 Figure 3 、 Figure 4 and Figure 5 The heat exchange unit includes a shell 100, a heat exchange component 200 and a sensor component 300.

[0076] The shell 100 is composed of a plurality of side panels, which enclose an accommodating cavity 110, and the heat exchange component 200 is arranged in the accommodating cavity 110. One of the side panels of the shell 100 is a first side panel 120, and the first side panel 120 is provided with a first opening 1221 connected to the accommodating cavity 110. The sensor component 300 includes a fixing bracket 310 and a sensor 320, and the fixing bracket 310 is detachably connected to the first side panel 120. Exemplarily, the fixing bracket 310 can be connected to the first side panel 120 by bolt connection, clamping or magnetic connection. The fixing bracket 310 covers the first opening 1221 so that the first opening 1221 is closed, thereby ensuring the sealing of the shell 100.

[0077] The sensor 320 is used to detect the concentration of the heat exchange medium surrounding it to determine whether the heat exchange medium is leaking. When the sensor 320 detects that the concentration of the heat exchange medium surrounding it is higher than a preset value, a sensor signal is generated. After receiving the sensor signal, the electrical control box 600 of the heat exchange unit performs corresponding alarm processing. The sensor 320 is located in the accommodating cavity 110 and is connected to the side of the fixed bracket 310 facing the accommodating cavity 110. The sensor 320 can be detachably connected to the fixed bracket 310 or fixedly connected to the fixed bracket 310. When the sensor 320 is detachably connected to the fixed bracket 310, the two can be connected by snapping, threading, or magnetic attraction. When the sensor 320 is fixedly connected to the fixed bracket 310, the two can be riveted, welded, or glued. The cross-sectional area of ​​the sensor 320 perpendicular to the hole axis of the first opening 1221 is smaller than the orifice area of ​​the first opening 1221, so that the sensor 320 can extend out of the accommodating cavity 110 of the shell 100 through the first opening 1221. Specifically, during the process of disassembling the fixing bracket 310 from the first side plate 120, the sensor 320 extends out of the accommodating cavity 110 from the first opening 1221 along with the fixing bracket 310.

[0078] When it is necessary to inspect and repair the sensor 320 in the accommodating cavity 110, the fixing bracket 310 is first removed from the first side plate 120. At this time, the fixing bracket 310 can be moved away from the first side plate 120. At the same time, since the sensor 320 is connected to the fixing bracket 310, during the process of the fixing bracket 310 moving away from the first side plate 120, the fixing bracket 310 can bring the sensor 320 out of the accommodating cavity 110 through the first opening 1221, thereby realizing the inspection and repair of the sensor 320. After the inspection of the sensor 320 is completed, the sensor 320 is first reconnected to the fixed bracket 310, and then the fixed bracket 310 is moved toward the first side plate 120. After the fixed bracket 310 is aligned with and covers the first opening 1221, the fixed bracket 310 is connected to the first side plate 120. At this time, the sensor 320 can be placed back into the accommodating cavity 110 through the first opening 1221. The sensor 320 can be used to monitor the concentration of the heat exchange medium in the accommodating cavity 110 in real time.

[0079] In this embodiment, when inspecting and repairing the sensor 320, the fixed bracket 310 connected to the sensor 320 can be removed without removing the entire first side panel 120. Compared to removing the first side panel 120, removing the smaller fixed bracket 310 is more convenient and more efficient. Furthermore, because the sensor 320 is connected to the inner side of the fixed bracket 310, the sensor 320 can be removed simultaneously after the fixed bracket 310 is removed. Compared to a structure in which the sensor 320 is connected to the first side panel 120 or disposed on the heat exchange assembly 200, this embodiment eliminates the need to remove the sensor 320 from the first side panel 120 or heat exchange assembly 200 after removing the fixed bracket 310, thereby improving the removal efficiency of the sensor 320. After inspecting and repairing the sensor 320, the sensor 320 can be reconnected to the fixed bracket 310 and then reconnected to the first side panel 120, while ensuring that the fixed bracket 310 covers the first opening 1221. During the above installation process, the sensor 320 can be installed and fixed outside the housing 100 . Compared with the structure in which the operator inserts his hand into the housing 100 through the first opening 1221 to install the sensor 320 , the operation of the operator is more convenient.

[0080] In some embodiments, reference Figures 1 to 5 The heat exchange assembly 200 includes a heat exchange pipe 210 for transmitting a heat exchange medium. The heat exchange pipe 210 is provided with an external connector 220 on the side facing the first side plate 120. The external connector 220 is passed through the first side plate 120. The heat exchange pipe 210 can be connected to an external pipe through the external connector 220.

[0081] Specifically, in this embodiment, the probability of heat exchange medium leaking at the joint of the heat exchange pipeline 210 will be greater. Therefore, corresponding to the joint connection of the heat exchange pipeline 210, the sensor 320 is set on the side close to the first side plate 120, which is beneficial to improving the sensitivity of the sensor 320 to the detection of heat exchange medium, and ensuring that when the heat exchange medium leaks, the sensor 320 can feedback within the first time.

[0082] In some embodiments, reference Figures 1 to 6 The first side panel 120 includes a first panel 121 and a second panel 122 connected to each other. At the joint between the first panel 121 and the second panel 122, the edges of the first panel 121 and the second panel 122 coincide with each other to ensure a seamless connection between the first panel 121 and the second panel 122. The external connector 220 is provided through the first panel 121, and the first opening 1221 is provided in the second panel 122.

[0083] Specifically, in this embodiment, the external connector 220 and the first opening 1221 are arranged on two different plates, that is, the external connector 220 is arranged on the first plate 121, and the first opening 1221 is arranged on the second plate 122, so that when the sensor 320 is inspected and repaired, that is, when the fixing bracket 310 is removed from the second plate 122, there will be no mutual interference with the external connector 220 on the first plate 121, so that the sensor 320 can be removed from the accommodating cavity 110 of the heat exchange unit.

[0084] Furthermore, in some embodiments, the external connector 220 can be pre-connected to a connecting plate to form an external connector 220 assembly. A through-hole connecting the interior and exterior of the housing 100 can be provided on the first plate 121, corresponding to the size of the connecting plate. When assembling the external connector 220 to the housing 100, the connecting plate can first be aligned with the through-hole, ensuring that it covers the through-hole. The connecting plate can then be connected to the first plate 121 via threaded connections or welding, thereby assembling the external connector 220 to the first plate 121. Compared to directly connecting the external connector 220 to the first plate 121, the connection method provided in this embodiment makes it easier to assemble the external connector 220 to the first plate 121 due to the larger operating area of ​​the connecting plate. Furthermore, the connecting plate can effectively block the through-hole, thereby ensuring the sealing of the accommodating cavity 110 and preventing heat loss from the heat exchange assembly 200 within the accommodating cavity 110.

[0085] In some embodiments, reference Figure 4 The heat exchange unit further includes a first water receiving pan 400, which is disposed on one side of the accommodating chamber 110 along the first direction X to collect condensed water that falls from the outer wall of the heat exchange assembly 200 along the first direction X. Along the first direction X, the second plate 122 is located on a side close to the first water receiving pan 400. For example, after the heat exchange unit is placed, the first direction X may be a direction from the upper end of the heat exchange unit to the lower end of the heat exchange unit.

[0086] Specifically, in this embodiment, when the heat exchange component 200 is working, water vapor in the air will condense to form small droplets after contacting the heat exchange component 200. The small droplets will gather to form streams of condensed water. Under the action of gravity, the condensed water will fall along the first direction X. At the same time, a first water receiving tray 400 is provided in the accommodating cavity 110 along the first direction X. At this time, the falling condensed water will just drip into the first water receiving tray 400. The first water receiving tray 400 will collect the condensed water, thereby preventing the condensed water from flowing around in the accommodating cavity 110 and causing damage or short circuit to the electronic components in the accommodating cavity 110, thereby ensuring the safety of the heat exchange unit.

[0087] Furthermore, since the density of the heat exchange medium is greater than that of the air, when the heat exchange medium leaks, the heat exchange medium will settle in the direction close to the first water receiving tray 400. Therefore, the second plate body 122 is set on the side close to the first water receiving tray 400, that is, the sensor 320 is set on the side close to the first water receiving tray 400 (because the sensor 320 is set on the side close to the second plate body 122), which is beneficial to improve the sensitivity of the sensor 320 to the detection of the heat exchange medium and ensure the safety of the heat exchange unit.

[0088] In some embodiments, reference Figure 4 The heat exchange unit further includes a second water receiving tray 500, which is disposed on one side of the heat exchange assembly 200 along the second direction Y to collect condensed water that falls from the outer wall of the heat exchange assembly 200 along the second direction Y. Along the second direction Y, the second plate 122 is located on a side proximal to the second water receiving tray 500. For example, after the heat exchange unit is placed, the second direction Y may be a direction from the upper end of the heat exchange unit to the lower end of the heat exchange unit.

[0089] Specifically, in this embodiment, referring to Figures 1 to 2 In order to make the heat exchange unit suitable for different installation spaces and improve the applicability of the heat exchange unit to installation scenarios, the heat exchange unit can have at least two installation and placement modes, namely a first installation state and a second installation state. For example, in the first installation state, the heat exchange unit can be installed and placed along its length. In this case, the lateral space occupied by the heat exchange unit is larger, while the longitudinal space occupied by the heat exchange unit is smaller. Therefore, the first installation state of the heat exchange unit is suitable for installation scenarios with a large lateral space and a small longitudinal space. In the second installation state, the heat exchange unit can be installed and placed along its width. In this case, the lateral space occupied by the heat exchange unit is smaller, while the longitudinal space occupied by the heat exchange unit is larger. Therefore, the second installation state of the heat exchange unit is suitable for installation scenarios with a small lateral space and a large longitudinal space.

[0090] Furthermore, corresponding to the first installation state of the heat exchange unit, a first water receiving pan 400 is provided within the heat exchange unit. In this first installation state, condensed water within the heat exchange unit can drip into the first water receiving pan 400 due to gravity, thereby collecting the condensed water within the heat exchange unit. Corresponding to the second installation state of the heat exchange unit, a second water receiving pan 500 is provided within the heat exchange unit. In this second installation state, condensed water within the heat exchange unit can drip into the second water receiving pan 500 due to gravity, thereby collecting the condensed water within the heat exchange unit.

[0091] Further, referring to the above embodiment, when the heat exchange component 200 is working, water vapor in the air will condense to form small droplets after contacting the heat exchange component 200, and the small droplets will gather to form streams of condensed water. Under the action of gravity, the condensed water will fall along the second direction Y. At the same time, a second water receiving tray 500 is provided in the accommodating cavity 110 along the second direction Y. At this time, the falling condensed water will just drip into the second water receiving tray 500. The second water receiving tray 500 will be used to collect the condensed water, thereby preventing the condensed water from flowing around in the accommodating cavity 110 and causing damage or short circuit to the electronic components in the accommodating cavity 110, thereby ensuring the safety of the heat exchange unit.

[0092] Furthermore, since the density of the heat exchange medium is greater than that of the air, when the heat exchange medium leaks, the heat exchange medium will settle in the direction close to the second water receiving tray 500. Therefore, the second plate body 122 is set on the side close to the second water receiving tray 500, that is, the sensor 320 is set on the side close to the second water receiving tray 500 (because the sensor 320 is set on the side close to the second plate body 122), which is beneficial to improve the sensitivity of the sensor 320 to the detection of the heat exchange medium and ensure the safety of the heat exchange unit.

[0093] In some embodiments, reference Figures 1 to 6 The second plate 122 is provided with a first water guide hole 1222, which is used to guide the condensed water in the first water receiving tray 400. The plane perpendicular to the first direction X is the first projection plane. The sensor 320 forms a first orthographic projection on the first projection plane. The first water guide hole 1222 forms a second orthographic projection on the first projection plane. When observed along the axial direction of the first opening 1221, the first orthographic projection and the second orthographic projection at least partially overlap.

[0094] And / or, the second plate 122 is provided with a second water guide hole 1223, the second water guide hole 1223 is used to drain the condensed water in the second water receiving tray 500, the plane perpendicular to the second direction Y is the second projection plane, the sensor 320 forms a third orthographic projection on the second projection plane, the second water guide hole 1223 forms a fourth orthographic projection on the second projection plane, and when observed along the axial direction of the first opening 1221, the third orthographic projection and the fourth orthographic projection at least partially overlap.

[0095] Specifically, in this embodiment, the first water guide hole 1222 can be externally connected to a water guide pipe, and the condensed water accumulated in the first water receiving tray 400 can flow from the first water guide hole 1222 to the water guide pipe and be discharged outside the shell 100 along the water guide pipe to prevent excessive accumulation of condensed water in the first water receiving tray 400, which will cause excessive humidity in the accommodating cavity 110 and affect the normal operation of electronic components in the accommodating cavity 110.

[0096] Furthermore, since the density of the heat exchange medium is greater than that of the air, when the heat exchange medium leaks, the heat exchange medium will settle in the direction close to the first water receiving tray 400, and since the first water guide hole 1222 connects the inside and outside of the shell 100, the leaked heat exchange medium is likely to be discharged from the shell 100 through the first water guide hole 1222. By setting the sensor 320 at the first water guide hole 1222, the sensor 320 can be used to accurately monitor the concentration changes of the heat exchange medium at the first water guide hole 1222, so as to improve the monitoring sensitivity of the sensor 320 to the heat exchange medium and ensure that the sensor 320 can respond within the first time after the heat exchange medium leaks.

[0097] Similarly, the second water guide hole 1223 can be connected to a water guide pipe. The condensed water accumulated in the second water receiving tray 500 can flow from the second water guide hole 1223 to the water guide pipe and be discharged outside the shell 100 along the water guide pipe to prevent excessive accumulation of condensed water in the second water receiving tray 500, which will cause excessive humidity in the accommodating cavity 110 and affect the normal operation of the electronic components in the accommodating cavity 110.

[0098] Furthermore, since the density of the heat exchange medium is greater than that of the air, when the heat exchange medium leaks, the heat exchange medium will settle in the direction close to the second water receiving tray 500, and since the second water guide hole 1223 connects the inside and outside of the shell 100, the leaked heat exchange medium is likely to be discharged from the shell 100 through the second water guide hole 1223. By setting the sensor 320 at the second water guide hole 1223, the sensor 320 can be used to accurately monitor the concentration changes of the heat exchange medium at the second water guide hole 1223, so as to improve the monitoring sensitivity of the sensor 320 to the heat exchange medium and ensure that the sensor 320 can respond within the first time after the heat exchange medium leaks.

[0099] In some embodiments, when viewed along the axis of the first opening 1221 , the sensor 320 and the heat exchange assembly 200 at least partially overlap.

[0100] Specifically, in this embodiment, since the heat exchange medium typically leaks from the pipe connections of the heat exchange assembly 200, placing the sensor 320 close to the heat exchange assembly 200 helps improve the accuracy and timeliness of the sensor 320's monitoring of the heat exchange medium, ensuring that the sensor 320 can respond immediately after a heat exchange medium leak occurs. Furthermore, spatially overlapping the sensor 320 with the heat exchange assembly 200 facilitates the rational use of the space within the accommodating chamber 110, thereby reducing the overall volume of the heat exchange unit.

[0101] In some embodiments, reference Figure 7 and Figure 8The fixed bracket 310 includes a fixed plate 311, and the fixed plate 311 includes an annular rib 3111 connected to the first side plate 120. When viewed along the axial direction of the first opening 1221, the annular rib 3111 is arranged around the outer periphery of the first opening 1221, and the annular rib 3111 abuts against the side wall of the first side plate 120 facing away from the accommodating cavity 110.

[0102] Specifically, in this embodiment, when the fixing bracket 310 is connected to the first side plate 120, the annular retaining edge 3111 of the fixing plate 311 in the fixing bracket 310 will fit tightly with the surface of the first side plate 120, thereby facilitating the use of the fixing bracket 310 to completely block the first opening 1221, thereby improving the sealing of the accommodating cavity 110 and preventing heat loss of the heat exchange component 200 in the accommodating cavity 110.

[0103] Furthermore, in some embodiments, bolt holes may be provided on the annular rib 3111 , and the fixing bracket 310 may be connected to the first side plate 120 by means of bolts passing through the bolt holes.

[0104] In some embodiments, reference Figure 7 and Figure 8 The fixing plate 311 includes a convex portion 3112 located on the inner side of the annular rib 3111 . The convex portion 3112 is protruded toward the accommodating cavity 110 . The sensor 320 is connected to a side of the convex portion 3112 facing the accommodating cavity 110 .

[0105] Specifically, in this embodiment, the sensor 320 is connected to the protrusion 3112. The thickness of the protrusion 3112 protruding into the accommodating chamber 110 can be used to adjust the location of the sensor 320 within the accommodating chamber 110. This allows the sensor 320 to be positioned corresponding to the connection point of the heat exchange pipe 210 in the heat exchange assembly 200, thereby improving the sensor 320's sensitivity to detecting leaked heat exchange medium. (Since the connection point of the heat exchange pipe 210 is more prone to heat exchange medium leakage, adjusting the sensor 320's location within the accommodating chamber 110 to correspond to the connection point of the heat exchange pipe 210 helps improve the sensor 320's sensitivity to detecting leaked heat exchange medium, thereby ensuring the safety of the heat exchange unit.)

[0106] Furthermore, in some embodiments, the protrusion 3112 can be integrally embedded in the first opening 1221, that is, the outer wall of the protrusion 3112 and the edge of the first opening 1221 are fitted together. By adopting the above structure, the protrusion 3112 can be used to more effectively seal the first opening 1221, thereby reducing the connection gap between the fixing plate 311 and the first opening 1221, and preventing the leaked heat exchange medium from flowing from the first opening 1221 to the outside of the shell 100, affecting the safety of the heat exchange unit.

[0107] In some embodiments, reference Figure 7 and Figure 8 The fixing bracket 310 further includes a cover plate 312, which is connected to the side of the annular rib 3111 facing away from the first side plate 120. An isolation chamber 313 is formed between the cover plate 312 and the fixing plate 311. When viewed along the axis of the first opening 1221, the sensor 320 at least partially overlaps with the isolation chamber 313. In other words, the sensor 320 is mounted on the fixing bracket 310. Because the isolation chamber 313 is located between the cover plate 312 and the fixing plate 311, it is filled with air (gas). Heat generated by the heat exchange assembly 200 within the accommodating chamber 110 is transferred to the exterior of the housing 100 through the fixing plate 311, the isolation chamber 313, and the cover plate 312 at a relatively low heat conduction efficiency (the heat conduction efficiency in the isolation chamber 313 is low). This reduces heat loss within the accommodating chamber 110, thereby improving the heat exchange efficiency of the heat exchange assembly 200 and ensuring the cooling or heating efficiency of the heat exchange unit.

[0108] Furthermore, the isolation cavity 313 can be formed in a variety of ways. For example, a protrusion 3112 that protrudes toward the accommodating cavity 110 can be provided on the fixed plate 311 to form the isolation cavity 313 between the fixed plate 311 and the cover plate 312. Alternatively, a protrusion 3112 that protrudes away from the accommodating cavity 110 can be provided on the cover plate 312 to form the isolation cavity 313 between the fixed plate 311 and the cover plate 312. Alternatively, a first protrusion 3112 that protrudes toward the accommodating cavity 110 can be provided on the fixed plate 311, while a second protrusion 3112 that protrudes away from the accommodating cavity 110 can be provided on the cover plate 312 to form the isolation cavity 313 between the fixed plate 311 and the cover plate 312.

[0109] In some embodiments, reference Figure 7 and Figure 8 The fixing bracket 310 further includes a heat insulating member 314, which fills at least a portion of the space of the isolation cavity 313. For example, the heat insulating member 314 can be heat insulating cotton, or the heat insulating member 314 can also be a heat insulating fiberboard.

[0110] Specifically, in this embodiment, by providing a heat insulating member 314 in the isolation cavity 313 of the fixed bracket 310, it is beneficial to improve the thermal insulation effect of the shell 100 at the first opening 1221, effectively preventing excessive heat in the accommodating cavity 110 from being transferred to the outside of the shell 100, avoiding excessive heat loss in the accommodating cavity 110, and ensuring the heat exchange effect of the heat exchange component 200 in the accommodating cavity 110.

[0111] Alternatively, in other embodiments, the fixing bracket 310 includes a thermal insulation block 3141 and a thermal insulation layer 3142. One side of the thermal insulation layer 3142 is in contact with the side wall of the cover plate 312 facing the fixing plate 311, and the other side is in contact with the side wall of the annular rib 3111 facing the cover plate 312. The thermal insulation block 3141 is disposed between the thermal insulation layer 3142 and the fixing plate 311, or between the thermal insulation layer 3142 and the cover plate 312. For example, the thermal insulation block 3141 and the thermal insulation layer 3142 may be thermal insulation cotton, or the thermal insulation block 3141 and the thermal insulation layer 3142 may be thermal insulation fiberboard.

[0112] Specifically, in this embodiment, by arranging a heat insulation layer 3142 and a heat insulation block 3141 between the fixing plate 311 and the cover plate 312, it is beneficial to improve the thermal insulation effect of the shell 100 at the first opening 1221, effectively preventing excessive heat in the accommodating cavity 110 from being transferred to the outside of the shell 100, avoiding excessive heat loss in the accommodating cavity 110, and ensuring the heat exchange effect of the heat exchange component 200 in the accommodating cavity 110.

[0113] Further, referring to the above embodiment, the setting position of the heat insulating block 3141 can correspond to the setting position of the protrusion 3112. For example, if a protrusion 3112 protruding toward the accommodating cavity 110 is provided on the fixing plate 311, the heat insulating block 3141 can be set between the heat insulating layer 3142 and the fixing plate 311; if a protrusion 3112 protruding away from the accommodating cavity 110 is provided on the cover plate 312, the heat insulating block 3141 can be set between the heat insulating layer 3142 and the fixing plate 311; 3141 is arranged between the thermal insulation layer 3142 and the cover plate 312; if a first protrusion 3112 protruding toward the accommodating cavity 110 is provided on the fixing plate 311, and a second protrusion 3112 protruding away from the accommodating cavity 110 is provided on the cover plate 312, then at this time, the thermal insulation block 3141 can be arranged both between the thermal insulation layer 3142 and the fixing plate 311, and between the thermal insulation layer 3142 and the cover plate 312.

[0114] In some embodiments, reference Figures 1 to 6 The heat exchange unit further includes an electrical control box 600, which is located outside the accommodating chamber 110 and connected to the housing 100. The heat exchange unit further includes a wire 700. The first side plate 120 is provided with a first avoidance hole 1224 that communicates with the accommodating chamber 110. The wire 700 is passed through the first avoidance hole 1224. One end of the wire 700 located within the accommodating chamber 110 is electrically connected to the sensor 320, and the other end located outside the accommodating chamber 110 is electrically connected to the electrical control box 600.

[0115] Specifically, in this embodiment, the electrical control box 600 is disposed outside the accommodating chamber 110, which facilitates connecting the sensor 320 and other electronic components to the electrical control box 600 via the wire 700. This also facilitates maintenance of the electrical control box 600, as the entire device does not need to be disassembled during maintenance, thereby ensuring that the electrical control box 600 is always in normal working condition. Furthermore, by disposing the electrical control box 600 outside the accommodating chamber 110, when the wire 700 is used to connect the sensor 320 and other electronic components to the electrical control box 600, the wire 700 will inevitably pass through the inside and outside of the accommodating chamber 110. This increases the length margin of the wire 700, thereby avoiding the problem of the wire 700 being too short and thus restricting the removal of the sensor 320 and other electronic components during maintenance and disassembly.

[0116] Furthermore, in some embodiments, the first avoidance hole 1224 can be a separate hole from the first opening 1221. When connecting the sensor 320 and the electrical control box 600 using the wire 700, one end of the wire 700 can be passed through the first avoidance hole 1224, so that one end of the wire 700 is placed inside the accommodating cavity 110 and the other end of the wire 700 is placed outside the accommodating cavity 110. In this case, the end of the wire 700 placed inside the accommodating cavity 110 is connected to the sensor 320, and the end of the wire 700 placed outside the accommodating cavity 110 is connected to the electrical control box 600, thereby achieving an electrical connection between the sensor 320 and the electrical control box 600 using the wire 700. When inspecting and disassembling the sensor 320, the wire 700 can first be removed from the sensor 320, and then the sensor 320 can be removed from the accommodating cavity 110 through the first opening 1221, and the wire 700 can be removed from the accommodating cavity 110 through the first avoidance hole 1224.

[0117] Alternatively, in other embodiments, the first avoidance hole 1224 can be connected to the first opening 1221. When connecting the sensor 320 and the electric control box 600 using the wire 700, one end of the wire 700 can be first connected to the sensor 320. Then, when the sensor 320 is placed into the accommodating cavity 110 through the first opening 1221, the sensor 320 will naturally drive the wire 700 into the first avoidance hole 1224, thereby positioning the wire 700 within the first avoidance hole 1224. When inspecting and disassembling the sensor 320, the sensor 320 can be directly removed from the accommodating cavity 110 through the first opening 1221. When the sensor 320 is removed from the accommodating cavity 110 through the first opening 1221, the sensor 320 will naturally drive the wire 700 out of the first avoidance hole 1224.

[0118] In some embodiments, reference Figure 7 and Figure 8The fixing bracket 310 is provided with a second avoidance hole 315 , and the second avoidance hole 315 is located on a side of the first avoidance hole 1224 away from the accommodating cavity 110 , and the wire 700 is passed through the second avoidance hole 315 .

[0119] Specifically, in this embodiment, a second avoidance hole 315 is provided on the fixing bracket 310 corresponding to the first avoidance hole 1224 on the first side panel 120. By way of example, for example, the second avoidance hole 315 can be arranged to overlap with the first avoidance hole 1224, so that the wire 700 passes through the second avoidance hole 315 and the first avoidance hole 1224 in sequence to connect the sensor 320 in the accommodating cavity 110 and the electrical control box 600 outside the accommodating cavity 110.

[0120] Furthermore, since the cross-sectional area of ​​the wire 700 along its radial direction is generally circular, in order to match the wire 700, the first avoidance hole 1224 and the second avoidance hole 315 can both be set as circular holes, and in order to ensure the sealing of the accommodating cavity 110, the apertures of the first avoidance hole 1224 and the second avoidance hole 315 can be consistent with the thickness of the wire 700.

[0121] Furthermore, based on the sensor 320 and the fixed bracket 310 defined in the above embodiments, various configurations can be employed regarding the placement of the sensor 320. Firstly, in some embodiments, the sensor 320 is connected to the side of the fixed bracket 310 facing the heat exchange assembly 200. This configuration allows the sensor 320 to better detect the heat exchange assembly 200. Secondly, in some embodiments, the sensor 320 includes a detection port adapted to conduct heat exchange medium, with the detection port disposed away from the fixed bracket 310. This configuration allows the detection port to extend outward from the fixed bracket 310, thereby enhancing the detection performance of the sensor 320. Thirdly, in some embodiments, the fixed bracket 310 further includes a water retaining portion disposed on one side of the sensor 320 perpendicular to the axis of the first opening 1221. Specifically, the water retaining portion shields the sensor 320 from condensed water. Thus, the water retaining portion can be disposed between the sensor 320 and a portion of the heat exchange assembly 200 prone to leaks or drips. In order to prevent condensed water from accumulating on the water retaining portion, the water retaining portion may be plate-shaped and tilted relative to the horizontal direction so that the condensed water can slide off the water retaining portion. More preferably, in order to prevent condensed water from accumulating on the sensor 320, the sensor 320 may also be tilted relative to the horizontal direction so that the condensed water can slide off the sensor 320. Fourthly, in some embodiments, the fixing bracket 310 is connected to the second plate 122. Thereby, the fixing bracket 310 and the sensor 320 can be made easier to install or repair. In addition, the sensor 320 includes a wiring terminal, which may be located on the side of the sensor 320 close to the electrical control box 600, so as to facilitate the wiring arrangement of the sensor 320 without interfering with other electronic components.

[0122] In some embodiments, reference Figures 1 to 8 The first avoidance hole 1224 is connected to the first opening 1221 along a side perpendicular to the axis of the first opening 1221. Alternatively, the fixing bracket 310 is provided with a second avoidance hole 315, which is located on a side of the first avoidance hole 1224 facing away from the accommodating cavity 110, and the wire 700 is passed through the second avoidance hole 315; the second avoidance hole 315 is provided on the periphery of the fixing bracket 310 and is open on one side.

[0123] Specifically, in this embodiment, the first avoidance hole 1224 is connected to the first opening 1221, and the second avoidance hole 315 is an open hole, that is, the second avoidance hole 315 has a gap, and the wire 700 can pass through the gap to enter or exit the second avoidance hole 315, and the second avoidance hole 315 can be arranged to overlap with the first avoidance hole 1224. When the wire 700 is used to connect the sensor 320 and the electric control box 600, one end of the wire 700 can be connected to the sensor 320. Then, when the sensor 320 is placed into the accommodating cavity 110 through the first opening 1221, the sensor 320 will naturally drive the wire 700 into the first avoidance hole 1224 and the second avoidance hole 315, thereby positioning the wire 700 in the first avoidance hole 1224 and the second avoidance hole 315. When inspecting and disassembling the sensor 320, the sensor 320 can be directly moved out of the accommodating cavity 110 from the first opening 1221. When the sensor 320 is moved out of the accommodating cavity 110 from the first opening 1221, the sensor 320 will drive the wire 700 to move out from the first avoidance hole 1224 and the second avoidance hole 315.

[0124] In some embodiments, reference Figure 6 The electric control box 600 is connected to the first side panel 120 . The electric control box 600 includes a wiring board 610 . The wire 700 passes through the wiring board 610 . The wiring board 610 is located on a side of the electric control box 600 facing the first opening 1221 .

[0125] Specifically, in this embodiment, since first side plate 120 is provided with first opening 1221, sensor 320 can extend into accommodating cavity 110 through first opening 1221 along with fixing bracket 310. That is, sensor 320 is positioned within accommodating cavity 110 close to first opening 1221. Connecting electrical control box 600 to first side plate 120 shortens the distance between electrical control box 600 and first opening 1221, and thus shortens the distance between electrical control box 600 and sensor 320. When connecting sensor 320 and electrical control box 600 using wire 700, the shorter distance between them allows for shorter wire 700 lengths, simplifying the wiring of wire 700 and ensuring the structural integrity of the heat exchange unit.

[0126] Furthermore, the terminal block 610 is located on the side of the electric control box 600 facing the first opening 1221 , which is also conducive to electrically connecting the sensor 320 and the electric control box 600 via a shorter length of wire 700 .

[0127] Or, in other embodiments, referring to Figure 1 The shell 100 also includes a second side plate 130, which is located on one side of the first side plate 120 and is arranged crosswise with the first side plate 120; the electric control box 600 is connected to the second side plate 130, and the electric control box 600 includes a terminal block 610, and the wire 700 is passed through the terminal block 610, and the terminal block 610 is located on the side of the electric control box 600 facing the first side plate 120.

[0128] Specifically, in this embodiment, since the first side panel 120 is provided with a first opening 1221, the sensor 320 can extend into the accommodating cavity 110 through the first opening 1221 along with the fixing bracket 310, that is, the position of the sensor 320 in the accommodating cavity 110 is close to the first opening 1221. By connecting the electric control box 600 to the second side panel 130 arranged adjacent to and cross-arranged with the first side panel 120, the distance between the electric control box 600 and the first opening 1221 can be increased, that is, the distance between the electric control box 600 and the sensor 320 can be increased. When the sensor 320 and the electrical control box 600 are connected by the wire 700, the required length of the wire 700 is longer due to the long distance between the sensor 320 and the electrical control box 600, which is conducive to ensuring that the wire 700 has sufficient length margin, thereby ensuring that when the sensor 320 is inspected and repaired, it is not inconvenient to remove the sensor 320 from the accommodating cavity 110 because the wire 700 is too short and easily stuck (because the wire 700 is generally not elastic).

[0129] Furthermore, the terminal block 610 is located on the side of the electrical control box 600 facing the first side plate 120, which can prevent the length of the wire 700 connecting the sensor 320 and the electrical control box 600 from being too long, causing the wire 700 to become loose and affecting the overall aesthetics of the heat exchange unit.

[0130] Furthermore, prefabricated holes are provided on the terminal board 610. The so-called prefabricated holes are vias that are easy to cut. When wiring the sensor 320, the corresponding vias are cut using nozzle pliers to achieve the connection of the wire 700 on the terminal board 610.

[0131] In some embodiments, reference Figure 3The heat exchange unit includes a heat insulation plate 800, which is attached to the side wall of the first side plate 120 facing the accommodating chamber 110. The heat insulation plate 800 has a second opening 810, which is connected to the first opening 1221. The sensor 320 at least partially extends out of the second opening 810 in a direction close to the heat exchange assembly 200. For example, the heat insulation plate 800 can be a heat insulation cotton board, or a heat insulation fiber board, etc.

[0132] Specifically, in this embodiment, since the first side plate 120 is provided with a first opening 1221 and other structures connecting the inside and outside of the accommodating cavity 110, by providing a heat insulation plate 800 on the side wall of the first side plate 120 facing the accommodating cavity 110 (that is, providing a heat insulation plate 800 on the inner side wall of the first side plate 120), the thermal insulation of the shell 100 at the first side plate 120 can be improved, and a large amount of heat in the accommodating cavity 110 can be prevented from diffusing to the outside of the shell 100, which will affect the heat exchange effect of the heat exchange component 200 in the accommodating cavity 110 and also have an adverse effect on the indoor ambient temperature where the heat exchange unit is placed.

[0133] Furthermore, when the sensor 320 is placed in the accommodating cavity 110, the sensor 320 will pass through the first opening 1221 and the second opening 810 in sequence (it should be noted that the sensor 320 can partially pass through the second opening 810), so that the sensor 320 is close to the heat exchange component 200, ensuring that the sensor 320 can detect the heat exchange medium leaked from the heat exchange component 200 in a timely manner, thereby improving the detection sensitivity of the sensor 320 to the heat exchange medium.

[0134] The present invention also provides an air handling unit, which includes the heat exchange unit in any of the above embodiments. The air handling unit may also include other units in addition to the heat exchange unit. For example, the air handling unit may also include an air supply unit, which supplies air to the heat exchange unit after being spliced ​​with the heat exchange unit. In some embodiments, the air supply unit may be spliced ​​above the heat exchange unit (e.g., Figure 1 The air supply unit is positioned at the bottom of the heat exchange unit (as shown in FIG1 ) and blows air upward, so that the outside air is sucked into the heat exchange unit from the bottom of the heat exchange unit. In other embodiments, the air supply unit can be spliced ​​below the heat exchange unit (as shown in FIG1 ). Figure 1 and blow air upward so that the air is blown into the heat exchange unit.

[0135] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship, movement, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly. When a directional reference is introduced in a specific embodiment, if the direction is not specifically limited to unidirectional, the direction can be unidirectional or bidirectional (two directions parallel to each other and opposite to each other). Whether it is unidirectional or bidirectional is based on what a person of ordinary skill in the art can achieve. When the directional reference is bidirectional, it should be considered that two different embodiments are introduced in parallel.

[0136] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or", "and / or" or "and / or" appear in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0137] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A heat exchange unit, characterized in that: include: A housing having an accommodating cavity therein, the housing comprising a first side plate, the first side plate being provided with a first opening communicating with the accommodating cavity; A heat exchange component is disposed in the accommodating cavity; a sensing assembly, comprising a fixing bracket and a sensor, wherein the fixing bracket is detachably connected to the first side plate and covers the first opening; the sensor is used to detect the heat exchange medium around itself, and the sensor is located in the accommodating cavity and connected to a side of the fixing bracket facing the accommodating cavity; The fixing bracket is configured to be removed from the first side plate so that the sensor extends out of the accommodating cavity through the first opening along with the fixing bracket.

2. The heat exchange unit according to claim 1, wherein: The heat exchange assembly includes a heat exchange pipeline for transmitting heat exchange medium. The heat exchange pipeline is provided with an external joint on a side facing the first side plate, and the external joint is passed through the first side plate.

3. The heat exchange unit according to claim 2, characterized in that: The first side plate includes a first plate body and a second plate body connected to each other, the external connector is provided through the first plate body, and the first opening is provided in the second plate body.

4. The heat exchange unit according to claim 3, characterized in that: The heat exchange unit further includes a first water receiving tray, which is provided on one side of the accommodating cavity along the first direction to collect condensed water falling from the outer wall of the heat exchange component along the first direction; Along the first direction, the second plate is located on a side close to the first water receiving tray.

5. The heat exchange unit according to claim 4, characterized in that: The heat exchange unit further includes a second water receiving tray, which is provided on one side of the heat exchange component along the second direction to collect condensed water falling from the outer wall of the heat exchange component along the second direction; Along the second direction, the second plate is located on a side close to the second water receiving tray.

6. The heat exchange unit according to claim 5, characterized in that The second plate is provided with a first water guide hole, the first water guide hole being used to guide condensed water out of the first water receiving tray. A plane perpendicular to the first direction is a first projection plane. The sensor forms a first orthographic projection on the first projection plane. The first water guide hole forms a second orthographic projection on the first projection plane. When viewed along the axis of the first opening, the first orthographic projection and the second orthographic projection at least partially overlap. and / or, The second plate body is provided with a second water guide hole, which is used to guide the condensed water in the second water receiving tray. The plane perpendicular to the second direction is the second projection plane. The sensor forms a third orthographic projection on the second projection plane. The second water guide hole forms a fourth orthographic projection on the second projection plane. When observed along the axial direction of the first opening, the third orthographic projection and the fourth orthographic projection at least partially overlap.

7. The heat exchange unit according to claim 1, wherein: When viewed along the axial direction of the first opening, the sensor and the heat exchange component at least partially overlap.

8. The heat exchange unit according to claim 1, wherein: The fixing bracket includes a fixing plate, and the fixing plate includes an annular rib connected to the first side plate. When viewed along the axial direction of the first opening, the annular rib is arranged around the outer periphery of the first opening, and the annular rib abuts the side wall of the first side plate facing away from the accommodating cavity.

9. The heat exchange unit according to claim 8, characterized in that: The fixing plate includes a convex portion located on the inner side of the annular rib, the convex portion is arranged to protrude toward the accommodating cavity, and the sensor is connected to a side of the convex portion facing the accommodating cavity.

10. The heat exchange unit according to claim 8, characterized in that The fixing bracket also includes a cover plate, which is connected to the side of the annular rib facing away from the first side plate. An isolation cavity is formed between the cover plate and the fixing plate. When observed along the axial direction of the first opening, the sensor at least partially overlaps with the isolation cavity.

11. The heat exchange unit according to claim 10, characterized in that: The fixing bracket further includes a heat insulating member, wherein the heat insulating member fills at least a portion of the space of the isolation cavity; or, The fixed bracket includes an insulation block and an insulation layer. One side of the insulation layer is in contact with the side wall of the cover plate facing the fixed plate, and the other side is in contact with the side wall of the annular rib facing the cover plate. The insulation block is arranged between the insulation layer and the fixed plate, or between the insulation layer and the cover plate.

12. The heat exchange unit according to claim 1, wherein: The heat exchange unit further includes an electric control box, which is located outside the accommodating cavity and connected to the shell; The heat exchange unit also includes a wire. The first side plate is provided with a first avoidance hole connected to the accommodating cavity. The wire is passed through the first avoidance hole. One end of the wire located in the accommodating cavity is electrically connected to the sensor, and the other end located outside the accommodating cavity is electrically connected to the electric control box.

13. The heat exchange unit according to claim 12, wherein: The fixing bracket is provided with a second avoidance hole, the second avoidance hole is located on a side of the first avoidance hole away from the accommodating cavity, and the wire is passed through the second avoidance hole.

14. The heat exchange unit according to claim 12, wherein: The first avoidance hole is connected to the first opening along one side perpendicular to the axial direction of the first opening; and / or, The fixing bracket is provided with a second avoidance hole, which is located on the side of the first avoidance hole away from the accommodating cavity, and the wire is passed through the second avoidance hole; the second avoidance hole is provided at the outer periphery of the fixing bracket and one side is open.

15. The heat exchange unit according to claim 12, wherein: The electric control box is connected to the first side panel, and includes a wiring board. The wires are passed through the wiring board, and the wiring board is located on a side of the electric control box facing the first opening. or, The shell also includes a second side panel, which is located on one side of the first side panel and arranged crosswise with the first side panel; the electric control box is connected to the second side panel, and the electric control box includes a terminal block, the wires are passed through the terminal block, and the terminal block is located on the side of the electric control box facing the first side panel.

16. The heat exchange unit according to claim 1, wherein: The heat exchange unit includes a heat insulation plate, the heat insulation plate is attached to the side wall of the first side plate facing the accommodating cavity, the heat insulation plate is provided with a second opening, and the second opening is connected to the first opening; The sensor at least partially extends out of the second opening in a direction close to the heat exchange component.

17. Air handling unit, characterized in that The heat exchange unit comprises the heat exchange unit according to any one of claims 1 to 16.

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