Heat exchange assembly, indoor unit and heating and ventilation system

Abstract

The embodiment of the utility model provides a heat exchange assembly, an indoor unit and a heating and ventilation system, and relates to the technical field of heating and ventilation systems.The heat exchange assembly comprises a heat exchange module, the heat exchange module comprises a heat exchanger and a first refrigerant sensor, the heat exchanger comprises a heat exchange pipe, and the heat exchange pipe comprises straight pipe sections and bent pipe sections which are sequentially and alternately connected in the extending direction of the heat exchange pipe; the straight pipe section is distributed in the first direction, the bent pipe section is located on one side of the straight pipe section in the first direction, the first refrigerant sensor is connected with the heat exchange module and located on one side of the heat exchange module in the first direction, and the first refrigerant sensor is located at the bottom end of the heat exchange module in the gravity direction. Particularly, when the refrigerant at the joint of the straight pipe section and the bent pipe section leaks and deposits, the first refrigerant sensor located at the bottom end can recognize the refrigerant, and therefore the stability of the product is improved.

Description

Technical Field

[0001] This application relates to the technical field of heating, ventilation, and air conditioning (HVAC) systems, and particularly to a heat exchange component, an indoor unit, and an HVAC system. Background Art

[0002] A refrigerant leak may occur in the heat exchanger due to the influence of sealing performance. The refrigerant leak will reduce the heat exchange efficiency of the heat exchanger and easily cause potential safety hazards. Therefore, a refrigerant sensor needs to be provided to monitor whether a refrigerant leak occurs.

[0003] In related technologies, for different types of air conditioners, due to the uncertainty of the specific positions of refrigerant leak points and the diversity of air conditioner installation methods, the relevant installation positions of refrigerant sensors are uncertain, and only meet the normal layout requirements of internal components of the air conditioner. Therefore, for refrigerant leaks at different positions in the heat exchanger, the refrigerant sensor cannot monitor and feedback in a timely and accurate manner, and the reliability of refrigerant monitoring is poor. Summary of the Utility Model

[0004] This application provides a heat exchange component, an indoor unit, and an HVAC system, which can quickly identify the refrigerant through the installation position of the refrigerant sensor, thereby improving the stability of the product.

[0005] In a first aspect, an embodiment of this application provides a heat exchange component, including:

[0006] A heat exchange module, including a heat exchanger. The heat exchanger includes heat exchange tubes, and the heat exchange tubes include straight tube sections and bent tube sections that are alternately connected in sequence along their extending directions. The straight tube sections are distributed along a first direction, and the bent tube sections are located on one side of the straight tube sections along the first direction; and

[0007] A first refrigerant sensor, connected to the heat exchange module, located on one side of the heat exchange module along the first direction, and located at the bottom end of the heat exchange module along the gravity direction.

[0008] In some embodiments, the heat exchange module includes:

[0009] At least two heat exchangers that are spaced apart along a second direction, where the second direction is perpendicular to the first direction; and

[0010] A first mounting plate connected between two adjacent heat exchangers, and the first mounting plate is arranged on one side of the heat exchanger along the first direction;

[0011] Wherein, the first refrigerant sensor is installed on the first mounting plate.

[0012] In some embodiments, the heat exchanger further includes:

[0013] A first side plate, located on the same side of the straight tube section as the first mounting plate along the first direction. The straight tube section passes through the first side plate, and the first mounting plate is connected to the first side plate.

[0014] In some embodiments, the first side plate includes:

[0015] A side plate body;

[0016] A first flanging formed by bending from the side plate body, and the side plate body is relatively fixed to the first mounting plate.

[0017] In some embodiments, the first mounting plate includes:

[0018] A mounting plate body;

[0019] A second flanging formed by bending from the mounting plate body, and the mounting plate body is relatively fixed to the heat exchanger.

[0020] In some embodiments, the heat exchange assembly further includes:

[0021] An electrical connection wire electrically connected to the first refrigerant sensor. The first mounting plate has a wire passing hole, and the electrical connection wire passes through the wire passing hole. An elastic shielding portion surrounding the electrical connection wire is provided in the wire passing hole.

[0022] In some embodiments, the heat exchange module includes two heat exchangers, and the two heat exchangers are inclined with respect to the direction of gravity, and along the direction of gravity, the distance between the two heat exchangers gradually increases; wherein, the first direction is perpendicular to the direction of gravity.

[0023] In some embodiments, the heat exchange module further includes:

[0024] A refrigerant distribution pipe, the refrigerant distribution pipe includes a plurality of capillary tubes, the heat exchanger includes a plurality of heat exchange tubes, each capillary tube is connected to each heat exchange tube, and along the first direction, the refrigerant distribution pipe and the first refrigerant sensor are located on the same side of the straight pipe section.

[0025] In a second aspect, an embodiment of the present application provides an indoor unit, including:

[0026] A housing having an air inlet and an air outlet, and along a third direction, the air inlet and the air outlet are respectively located on opposite sides of the housing; wherein, the first direction is perpendicular to the third direction;

[0027] A first water receiving tray located inside the housing and located on the side where the air inlet of the housing is located along the direction of gravity; and

[0028] The heat exchange assembly as described above, and along the third direction, the heat exchange assembly is arranged at the upper end of the first water receiving tray.

[0029] In some embodiments, along the third direction, the distance between the first refrigerant sensor and the first water receiving tray is h, and h satisfies: 50 mm ≤ h ≤ 70 mm.

[0030] In some embodiments, the heat exchange module includes two heat exchangers. The two heat exchangers are arranged obliquely with respect to the direction of gravity, and along the direction of gravity, the distance between the two heat exchangers gradually increases, and a ventilation opening is formed on the side of the two heat exchangers close to the air inlet;

[0031] The first water receiving tray surrounds to form a ventilation channel;

[0032] Among them, the ventilation opening, the ventilation channel and the air inlet are communicated along the third direction.

[0033] In some embodiments, the first water receiving tray is formed with an annular water receiving groove. The water receiving groove includes two first water receiving grooves arranged oppositely along the first direction and two second water receiving grooves arranged oppositely along the second direction. The first water receiving groove and the second water receiving groove are communicated, and the two heat exchangers are respectively installed in the corresponding two second water receiving grooves; among them, along the first direction, a drain port is opened in the first water receiving groove on the same side of the heat exchange module as the first refrigerant sensor, and among them, the first direction, the direction of gravity and the second direction are perpendicular to each other.

[0034] In some embodiments, the bottom surface of the first water receiving groove includes a water guiding surface connecting the drain port. From the side of the water guiding surface far from the drain port to the side close to the drain port, the water guiding surface gradually descends along the third direction.

[0035] In a third aspect, an embodiment of the present application provides a heating, ventilation and air conditioning (HVAC) system, including:

[0036] A compressor;

[0037] An indoor unit as described above;

[0038] An outdoor unit;

[0039] A throttling component, and the compressor, the indoor unit, the throttling component and the outdoor unit are connected in sequence.

[0040] For the heat exchange component, indoor unit and HVAC system provided by the embodiments of the present application, the heat exchange module of the heat exchange component includes a heat exchanger, the heat exchanger includes heat exchange tubes, and the heat exchange tubes include straight pipe segments and bent pipe segments that are alternately connected in sequence along its extending direction. The straight pipe segments are distributed along the first direction, and the bent pipe segments are located on one side of the straight pipe segments along the first direction. In this way, when the refrigerant in the heat exchange pipeline, especially the refrigerant at the connection between the straight pipe segment and the bent pipe segment leaks and deposits, the first refrigerant sensor at the bottom can identify the refrigerant, thereby increasing the stability of the product;

[0041] In addition, since the first refrigerant sensor is installed on the heat exchange module, the first refrigerant sensor and the heat exchange module can be assembled during the production and manufacturing process, which is convenient to assemble them together in the housing of the indoor unit, simplifying the subsequent assembly steps of the entire indoor unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0043] Figure 1 is a schematic structural diagram of a heating, ventilation and air conditioning (HVAC) system provided by an embodiment of the present application;

[0044] Figure 2 is a schematic structural diagram of an indoor unit provided by an embodiment of the present application;

[0045] Figure 3 For the present application Figure 2 is a schematic structural diagram of another perspective of the indoor unit shown in the present application;

[0046] Figure 4 For the present application Figure 2 is a schematic structural diagram of yet another perspective of the indoor unit shown in the present application;

[0047] Figure 5 is a schematic structural diagram of a heat exchanger provided by an embodiment of the present application;

[0048] Figure 6 is a schematic structural diagram of a heat exchange assembly provided by an embodiment of the present application;

[0049] Figure 7 For the present application Figure 6 is an enlarged structural diagram of part A in the present application;

[0050] Figure 8 For the present application Figure 6 is a schematic structural diagram of a first perspective of the heat exchange assembly shown in the present application;

[0051] Figure 9 For the present application Figure 6 is a schematic structural diagram of a second perspective of the heat exchange assembly shown in the present application;

[0052] Figure 10 For the present application Figure 9 is an enlarged structural diagram of part A in the present application;

[0053] Figure 11 For the present application Figure 5 is a schematic structural diagram of a third perspective of the heat exchange assembly shown in the present application;

[0054] Figure 12 For the present application Figure 11 is an enlarged structural diagram of part C in the present application;

[0055] Figure 13 For the present application Figure 6Schematic structural diagram of the heat exchange component from the fourth perspective as shown;

[0056] Figure 14 This application Figure 13 Schematic sectional structure diagram of the heat exchange component along the M-M section as shown;

[0057] Figure 15 This application Figure 5 Schematic structural diagram of the heat exchange component from the fifth perspective as shown;

[0058] Figure 16 This application Figure 15 Schematic sectional structure diagram of the heat exchange component along the N-N section as shown;

[0059] Figure 17 Schematic structural diagram of the first water receiving tray and the second water receiving tray provided by the embodiment of this application;

[0060] Figure 18 This application Figure 17 Enlarged structural diagram of part D in this application;

[0061] Figure 19 This application Figure 5 Schematic structural diagram of the heat exchange component from the sixth perspective as shown. Description of the drawings:

[0063] 1. Indoor unit;

[0064] 1000. Heat exchange component;

[0065] 100. Heat exchange module; 110. Heat exchanger; 110a. Ventilation opening; 111. Heat exchange tube; 1111. Straight pipe section; 1112. Elbow pipe section; 112. First side plate; 1121. Side plate body; 1122. First flanging; 113. Second side plate; 120. First mounting plate; 121. Mounting plate body; 122. Second flanging; 120a. Wire passing hole; 123. Elastic shielding part; 130. Second mounting plate; 140. Refrigerant distribution pipe; 141. Capillary tube;

[0066] 200. First refrigerant sensor;

[0067] 2000. Housing; 2000a. Air inlet; 2000b. Air outlet;

[0068] 3000. First water receiving tray; 3000a. Ventilation channel; 3000b. Water receiving groove; 3100b. First water receiving groove; 3200b. Second water receiving groove; 3100. Drainage port; 3200. Water guiding surface;

[0069] 4000. Fan;

[0070] 5000. Second water receiving tray;

[0071] 2. Compressor;

[0072] 3. Outdoor unit;

[0073] 4. Throttling component;

[0074] 5. Four-way valve;

[0075] First direction XX; Second direction YY, Third direction ZZ; First central plane JJ; Second central plane KK. Detailed implementation manner

[0076] In order to make the objectives, technical solutions and advantages of the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0077] Please refer to Figure 1 , the embodiment of the present application provides a heating and ventilation system, and the heating and ventilation system includes systems for heating or cooling such as air conditioners, multi-connected units, heat pumps, etc., and the embodiment of the present application does not limit this.

[0078] The heating and ventilation system includes a compressor 2, an indoor unit 1, an outdoor unit 3 and a throttling component 4, and the compressor 2, the outdoor unit 3, the throttling component 4 and the indoor unit 1 are connected in sequence. Among them, the compressor 2 is used to compress the refrigerant, the indoor unit 1 and the outdoor unit 3 are used to realize the heat exchange between the refrigerant and the outside world, and the throttling component 4 is used to play a role in throttling and reducing pressure.

[0079] Among them, the throttling component 4 can be any throttling component 4 in the related art. For example, the throttling component 4 can be an electronic expansion valve, a throttle valve, etc., and this is not limited. And the heating and ventilation system has a cooling mode and a heating mode.

[0080] In the cooling mode, the compressor 2 outputs high-temperature and high-pressure gaseous refrigerant, and this high-temperature and high-pressure gaseous refrigerant is transmitted to the outdoor unit 3 and undergoes condensation heat exchange to become high-pressure and normal-temperature liquid refrigerant. The high-pressure and normal-temperature liquid refrigerant is further transmitted to the throttling component 4 and undergoes throttling and pressure reduction to become low-temperature and low-pressure gas-liquid mixed refrigerant. Then, the low-temperature and low-pressure gas-liquid mixed refrigerant enters the indoor unit 1 and undergoes evaporation heat exchange to become low-temperature and low-pressure gaseous refrigerant. Finally, the low-temperature and low-pressure gaseous refrigerant flows back to the compressor 2 to complete a complete refrigeration cycle.

[0081] In the heating mode, the compressor 2 outputs high-temperature and high-pressure gaseous refrigerant. This high-temperature and high-pressure gaseous refrigerant is transmitted to the indoor unit 1 and undergoes condensation heat exchange to become high-pressure and normal-temperature liquid refrigerant. The high-pressure and normal-temperature liquid refrigerant is further transmitted to the throttling assembly 4 and undergoes throttling and pressure reduction to become low-temperature and low-pressure gas-liquid mixed refrigerant. Then, the low-temperature and low-pressure gas-liquid mixed refrigerant enters the outdoor unit 3 and undergoes evaporation heat exchange to become low-temperature and low-pressure gaseous refrigerant. Finally, the low-temperature and low-pressure gaseous refrigerant flows back to the compressor 2 to complete a complete heating cycle.

[0082] It should be noted that the HVAC system may further include a four-way valve 5, which is used to switch the forward and reverse flow directions of the refrigerant. For example, in the cooling mode, the flow path of the refrigerant is: compressor 2 - four-way valve 5 - outdoor unit 3 - throttling assembly 4 - indoor unit 1 - four-way valve 5 - compressor 2; while in the heating mode, the flow path of the refrigerant is: compressor 2 - four-way valve 5 - indoor unit 1 - throttling assembly 4 - outdoor unit 3 - four-way valve 5 - compressor 2.

[0083] When the HVAC system is operating or on standby, due to the influence of the sealing performance, the heat exchanger 110 may have refrigerant leakage. Refrigerant leakage will reduce the heat exchange efficiency of the air conditioner and easily cause potential safety hazards. Therefore, a refrigerant sensor is used to monitor whether refrigerant leakage occurs, so that relevant personnel can handle the leakage situation in a timely manner. Due to the distribution of the entire HVAC system pipeline, the pipelines exposed outside the indoor unit 1 and the outdoor unit 3 are likely to diffuse into the air when refrigerant leakage occurs, affecting the detection accuracy of the refrigerant sensor. Also, since the outdoor unit 3 is located outdoors, when refrigerant leakage occurs, it is also easy to diffuse into the air, thus affecting the detection accuracy of the refrigerant sensor. Therefore, the refrigerant sensor is generally arranged inside the indoor unit 1.

[0084] In the prior art, for different types of HVAC systems, due to the uncertainty of the specific location of the refrigerant leakage point and the diversity of the installation methods of the indoor unit 1, the relevant installation positions of the refrigerant sensor are not fixed, and only meet the normal layout requirements of the internal components of the air conditioner. Therefore, for the refrigerant leakage situations at different positions inside the indoor unit 1, the refrigerant sensor cannot monitor and feedback in a timely and accurate manner, and the reliability of refrigerant monitoring is poor.

[0085] Based on this, please refer to Figures 2 - 4 , an embodiment of the present application provides an indoor unit 1, which includes a housing 2000, a first water receiving tray 3000, a heat exchange component 1000, and a fan 4000. The indoor unit 1 has two usage states, one is vertical and the other is horizontal. In the embodiment of the present application, the indoor unit 1 is first described by taking it as vertical as an example.

[0086] The housing 2000, as an exterior component of the indoor unit 1, is used to protect the components inside the indoor unit 1. The housing 2000 has an air inlet 2000a and an air outlet 2000b. Along the third direction ZZ, the air inlet 2000a and the air outlet 2000b are respectively located on opposite sides of the housing 2000. The external space enters through the air inlet 2000a, exchanges heat with the heat exchange component 1000, and is discharged through the air outlet 2000b. When the indoor unit 1 is vertical, the third direction ZZ is along the direction of gravity.

[0087] The fan 4000 is used to accelerate the flow rate of the external air passing through the air inlet 2000a and the air outlet 2000b, thereby increasing the heat exchange capacity between the external air and the heat exchange component 1000;

[0088] The first water receiving tray 3000 is located inside the housing 2000 and can receive the condensed water generated by the heat exchange component 1000 during operation;

[0089] The heat exchange component 1000 is used to exchange heat with the external air entering through the air inlet 2000a. The heat exchange component 1000 includes a heat exchange module 100. Please refer to Figures 4 - 5 , the heat exchange module 100 includes a heat exchanger 110, and the heat exchanger 110 includes heat exchange tubes 111. The heat exchange tubes 111 are used to conduct the refrigerant. The refrigerant circulates inside the heat exchange tubes 111 and evaporates or condenses as appropriate to cool or heat the air. Specifically, when the air conditioner is cooling, the refrigerant evaporates and absorbs heat in the heat exchange tubes 111 of the heat exchange component 1000, thereby absorbing the indoor heat and reducing the indoor temperature. When the air conditioner is heating, the refrigerant condenses and releases heat in the heat exchange tubes 111 of the heat exchange component 1000, thereby releasing heat indoors and increasing the indoor temperature.

[0090] In some embodiments, please continue to refer to Figure 5 , the heat exchange tubes 111 include straight pipe sections 1111 and bent pipe sections 1112 that are alternately connected in sequence along their extending directions. The straight pipe sections 1111 are distributed along the first direction XX, and the bent pipe sections 1112 are located on one side of the straight pipe sections 1111 along the first direction XX.

[0091] The connection between the bent pipe sections 1112 and the straight pipe sections 1111 is generally achieved by welding or using a pipe connector. The applicant has found that at the connection between the bent pipe sections 1112 and the straight pipe sections 1111, the refrigerant is more likely to leak, which will reduce the heat exchange efficiency of the heat exchanger 110 and easily cause safety hazards.

[0092] Therefore, in the embodiments of the present application, please refer to Figure 6, the heat exchange assembly 1000 further includes a first refrigerant sensor 200. The first refrigerant sensor 200 is connected to the heat exchange module 100 and is located on one side of the heat exchange module 100 along the first direction XX. Along the gravity direction, the first refrigerant sensor 200 is located at the bottom end of the heat exchange module 100. The leaked refrigerant can be detected by the first refrigerant sensor 200. In addition, since the first refrigerant sensor 200 is located on one side of the heat exchange module 100 along the first direction XX, the refrigerant leaked from the connection between the elbow section 1112 and the straight section 1111 of the heat exchange tube 111 can be monitored more quickly by the first refrigerant sensor 200, ensuring the timeliness of refrigerant monitoring.

[0093] At the same time, since the refrigerant is heavier than air, after the refrigerant leaks, the leaked refrigerant will move downward under the influence of gravity. Therefore, the refrigerant concentration at the bottom end of the heat exchange module 100 is relatively high. The arrangement of the first refrigerant sensor 200 at the bottom end of the heat exchange module 100 in this solution can ensure the accuracy of refrigerant monitoring. Therefore, the heat exchange assembly 1000 of this solution can effectively improve the reliability of refrigerant monitoring, facilitate relevant personnel to promptly handle the refrigerant leakage situation, and ensure the continuous normal operation of the heat exchange assembly 1000.

[0094] On the other hand, in the embodiment of the present application, since the first refrigerant sensor 200 is connected to the heat exchange module 100 and the first refrigerant sensor 200 and the heat exchange module 100 are assembled during the production stage, the subsequent steps of separately installing the first refrigerant sensor 200 are reduced, thereby shortening the overall production cycle and improving production efficiency. At the same time, by directly installing the first refrigerant sensor 200 on the heat exchange module 100, the structural features of the heat exchange module 100 itself can be used as a positioning reference to ensure the accurate installation position and angle of the first refrigerant sensor 200. This design reduces the performance deviation or failure risk caused by improper on-site installation, and improves the reliability and stability of the product.

[0095] For the convenience of describing and understanding the specific structure of the heat exchange assembly 1000, a first direction XX and a second direction YY are defined. Figures 2 - 4 With reference to the shown orientation, the first direction XX is the front-back direction, and the second direction YY is the left-right direction. Of course, it can be understood that in some embodiments, the first direction XX can also be the left-right direction, and the second direction YY is the front-back direction. That is, the direction of the first direction XX can be determined according to the visible situation in the actual use state. Some embodiments of the present application will be described by taking the first direction XX as the front-back direction as an example.

[0096] Refer to Figures 6 - 7, the heat exchange module 100 includes at least two heat exchangers 110 and a first mounting plate 120 connected between two adjacent heat exchangers 110. The at least two heat exchangers 110 are spaced apart along a second direction YY, the second direction YY is perpendicular to a first direction XX, the first mounting plate 120 is disposed on one side of the heat exchanger 110 along the first direction XX, and the first refrigerant sensor 200 is mounted on the first mounting plate 120.

[0097] The at least two heat exchangers 110 can effectively increase the heat exchange area, thereby improving the heat exchange efficiency of the entire heat exchange module 100. And because the second direction YY is perpendicular to the first direction XX, the layout of the heat exchange assembly 1000 can be made more compact. The first mounting plate 120 can not only connect two adjacent heat exchangers 110, but also ensure the structural stability of the entire heat exchange module 100 after connection.

[0098] In addition, the first mounting plate 120 can provide a mounting position for the first refrigerant sensor 200, making the overall heat exchange module 100 a modular structure design. In this way, the subsequent steps of separately installing the first refrigerant sensor 200 are reduced, thereby shortening the overall production cycle and improving production efficiency. At the same time, directly mounting the first refrigerant sensor 200 on the heat exchange module 100 can use the structural characteristics of the heat exchange module 100 itself as a positioning reference to ensure the accurate installation position and angle of the first refrigerant sensor 200. This design reduces the performance deviation or failure risk caused by improper on-site installation, and improves the reliability and stability of the product.

[0099] It can be understood that both the straight pipe sections 1111 and the bent pipe sections 1112 of each heat exchange pipe 111 are provided with a plurality of them. The straight pipe sections 1111 are distributed along the first direction XX, and some of the bent pipe sections 1112 are located on the front side of the first direction XX, and the remaining bent pipe sections 1112 are located on the rear side of the first direction XX. Therefore, refrigerant leakage is likely to occur on both the front side and the rear side of the first direction XX. In order to quickly detect the refrigerant, the embodiment of the present application further provides a second refrigerant sensor (not shown in the figure). The second refrigerant sensor and the first refrigerant sensor 200 are respectively disposed on both sides of the straight pipe section 1111 along the first direction XX, and the second refrigerant sensor is also located at the bottom end of the heat exchange module 100. In this way, the leaked refrigerant that will move downward under the influence of gravity can be accurately and quickly detected.

[0100] Further, please refer to Figure 8, the heat exchange module 100 in the embodiment of the present application further includes a second mounting plate 130. The second mounting plate 130 and the first mounting plate 120 are respectively located on both sides of the straight pipe section 1111 of the heat exchange pipe 111 along the first direction XX. The second mounting plate 130 also connects two adjacent heat exchangers 110. The second mounting plate 130 can cooperate with the first mounting plate 120, so as to more stably connect two adjacent heat exchangers 110. In addition, the second mounting plate 130 can also provide an installation position for the second refrigerant sensor.

[0101] Refer to Figures 9 - 10 , the heat exchanger 110 in the embodiment of the present application further includes a first side plate 112. The first side plate 112 and the first mounting plate 120 are located on the same side of the straight pipe section 1111 along the first direction XX. The straight pipe section 1111 passes through the first side plate 112. The first side plate 112 can provide additional support for the heat exchange pipe 111, enhancing the connection strength of the overall structure of the entire heat exchange pipe 111 and the heat exchanger 110, and helping to resist mechanical stresses caused by factors such as refrigerant pressure, vibration, and temperature changes during the operation of the heat exchanger 110, thereby extending the service life of the heat exchanger 110. At the same time, the first side plate 112 also provides an installation position, enabling the first mounting plate 120 and the first side plate 112 to be connected together by screws or bolts.

[0102] Among them, the straight pipe section 1111 passes through the first side plate 112, which can expose a part of the straight pipe section 1111 outside the first side plate 112, facilitating the connection of the straight pipe section 1111 to the bent pipe section 1112 after being installed in place on the first side plate 112. And the connection part of the straight pipe section 1111 and the bent pipe section 1112 is located outside the first side plate 112, and the refrigerant leaked at this connection part can be monitored by the first refrigerant sensor 200, ensuring the timeliness of refrigerant monitoring.

[0103] Based on the need for the first side plate 112 to support the straight pipe section 1111 of the heat exchange pipe 111, in order to ensure the stability of the support, refer to Figures 9 - 10 , the first side plate 112 includes a side plate body 1121 and a first flanging 1122. The first flanging 1122 is bent from the side plate body 1121, so the rigidity and strength of the entire first side plate 112 are increased.

[0104] It can be understood that the first flanging 1122 can be formed by bending one edge of the side plate body 1121, or multiple edges can be bent to form multiple first flangings 1122, which is specifically set according to the actual situation. In the embodiment of the present application, the first flanging 1122 forms an angle of approximately 90 degrees with the side plate body 1121, and based on the fact that the first mounting plate 120 is located on the front side in the first direction XX, that is, the first side plate 112 is also located on the front side. In order to avoid the sharp edges of the first side plate 112 from cutting hands during transportation and installation, etc., in the embodiment of the present application, the first flanging 1122 is bent backward in the first direction XX, so as to avoid the edge surface of the first flanging 1122 facing the user, thereby reducing the risk of cutting hands.

[0105] In addition, the existence of the first flanging 1122 can not only increase the rigidity and strength of the first side plate 112, but also does not occupy too much space in the second direction YY, thus making the layout of the entire heat exchange module 100 compact.

[0106] In some embodiments, please refer back to Figure 8 , the heat exchanger 110 further includes a second side plate 113. The second side plate 113 and the second mounting plate 130 are located on the same side of the straight pipe section 1111 along the first direction XX. One end of the straight pipe section 1111 passes through the first side plate 112, and the other end passes through the second side plate 113. In this way, the second side plate can cooperate with the first side plate 112 to support the entire straight pipe section 1111, enhancing the connection strength of the overall structure of the entire heat exchange tube 111 and the heat exchanger 110. And the second side plate 113 is also connected to the second mounting plate 130, which can strengthen the connection strength between two adjacent heat exchangers 110. Similarly, the second side plate 113 also provides an installation position to be connected to the second mounting plate 130, enabling the second mounting plate 130 to be quickly connected to the second side plate 113.

[0107] Please refer back to Figures 6 - 7 , the first mounting plate 120 includes a mounting plate body 121 and a second flanging 122. The second flanging 122 is formed by bending from the mounting plate body 121. In this way, the rigidity and stiffness of the first mounting plate 120 can be improved. Among them, the second flanging 122 can be formed by bending one edge of the mounting plate body 121, or multiple edges can be bent to form multiple second flangings 122, which is specifically set according to the actual situation. In the embodiment of the present application, the second flanging 122 forms an angle of approximately 90 degrees with the mounting plate body 121. Based on the fact that the first flanging 1122 is formed by bending the edge of the side plate body 1121 from front to back along the first direction XX, in order to avoid interference, in the embodiment of the present application, the second flanging 122 is formed by bending the edge of the mounting plate body 121 from back to front. For details, please refer to Figure 7 .

[0108] The mounting plate body 121 overlaps with the side plate body 1121. During the installation process, the two can cooperate smoothly without hindering each other, and they can be connected by bolts or screws. In addition, due to the overlap between the mounting plate body 121 and the side plate body 1121, the mounting plate body 121 and the side plate body 1121 also provide certain mounting positions to adapt to different installation conditions and requirements.

[0109] In the embodiment of the present application, the heat exchange module 100 further includes a refrigerant distribution pipe 140. As Figures 9 - 10 shown, the refrigerant distribution pipe 140 includes a plurality of capillary tubes 141, and the heat exchanger 110 includes a plurality of heat exchange tubes 111. Each capillary tube 141 is connected to each heat exchange tube 111. In this way, it can ensure that the refrigerant is evenly distributed among the plurality of heat exchange tubes 111. This uniform refrigerant distribution helps to improve the heat exchange efficiency, reduce the temperature gradient during the heat exchange process, and thus improve the heat exchange performance of the entire heat exchange module 100.

[0110] Based on the need for a plurality of capillary tubes 141 to be connected to a plurality of heat exchange tubes 111, and in the case where there may be refrigerant leakage at the connection between the capillary tube 141 and the heat exchange tube 111, in the embodiment of the present application, referring to Figure 9 , along the first direction XX, the refrigerant distribution pipe 140 and the first refrigerant sensor 200 are located on the same side of the straight pipe section 1111. In this way, after the refrigerant leaked at the connection between the capillary tube 141 and the heat exchange tube 111 sinks under the action of gravity, the first refrigerant sensor 200 can quickly and accurately detect the leaked refrigerant, facilitating relevant personnel to promptly handle the refrigerant leakage situation and ensuring the continuous normal operation of the heat exchange component 1000.

[0111] In the indoor unit 1, the leaked refrigerant may pose certain safety hazards, such as refrigerant deflagration. Therefore, when the first refrigerant sensor 200 detects the leaked refrigerant, a signal needs to be transmitted to the controller, and the controller can control and increase the rotation speed of the blower 4000, so that the refrigerant converted into a gaseous state can be discharged from the air outlet 2000b together with the external air.

[0112] The first refrigerant sensor 200 can be wirelessly signal-connected to the controller or signal-connected through an electrical connection wire. In the embodiment of the present application, for the sake of ensuring stable signal transmission, an electrical connection wire (not shown in the figure) is used for connection, that is, one end of the electrical connection wire is electrically connected to the first refrigerant sensor 200, and the other end is electrically connected to the controller.

[0113] For the convenience of routing the electrical connection wire, referring to Figures 11 - 12The first mounting plate 120 is provided with a wire hole 120a, and the electrical connection line passes through the wire hole 120a. In order to reduce the possibility of the refrigerant leaking from the front end along the first direction XX leaking to other places from the wire hole 120a, thereby reducing the refrigerant concentration at the bottom end of the heat exchange module 100, thereby affecting the accuracy and timeliness of the first refrigerant sensor 200 monitoring the leaked refrigerant, in this embodiment of the application, an elastic shielding portion 123 is provided in the wire hole 120a and is surrounded by the outer periphery of the electrical connection line. The elastic shielding portion 123 can tightly wrap the electrical connection line, effectively reducing the possibility of the refrigerant flowing into other places through the wire hole 120a, so that the refrigerant leaking from the front end along the first direction XX can be accumulated under the action of gravity, thereby increasing the concentration of the refrigerant, and then can be accurately and quickly monitored by the first refrigerant sensor 200.

[0114] The elastic shielding portion 123 may be one or more, and can cover at least part of the cross-section of the wire hole 120a. Since the elastic shielding portion 123 is elastic, when the electrical connection line passes through the elastic shielding portion 123, the elastic shielding portion 123 can fit the electrical connection line, thereby further reducing the possibility of leaked refrigerant flowing from the wire hole 120a to other places.

[0115] Specifically, the elastic shielding portion 123 may be made of rubber, silicone or other elastic materials in the prior art, which will not be further explained here.

[0116] In the embodiment of the present application, since the indoor unit 1 has two use states, vertical and horizontal, it can adapt to a variety of application scenarios. Due to the different use states of the indoor unit 1, the position setting of the water tray of the indoor unit 1 will also be different. In some embodiments, refer to Figures 2 - 4 The first water receiving tray 3000 is located in the outer shell 2000 and is located on the side of the air inlet 2000a of the outer shell 2000 along the third direction ZZ. This state is a vertical state. The third direction ZZ is the same as the direction of gravity. The first water receiving tray 3000 can receive condensed water generated by the heat exchange component 1000 during operation and can also receive leaked refrigerant that sinks under the action of gravity.

[0117] In addition, see Figure 8 , Figure 9 as well as Figure 11 The indoor unit 1 is further provided with a second water receiving tray 5000 to cope with the horizontal usage state of the indoor unit 1. It can be understood that the second water receiving tray 5000 has the same function as the first water receiving tray 3000.

[0118] In the embodiments of the present application, the second water receiving tray 5000 is communicated with the first water receiving tray 3000. The second water receiving tray 5000 is arranged on one side of the heat exchange component 1000 along the second direction YY. Here, the direction of the second direction YY is the same as that of the second direction YY above, which will not be elaborated here. The second direction YY is perpendicular to the first direction XX and the third direction ZZ. Taking Figures 8 - 9 the orientation of

[0119] as a reference, the first direction XX may be the front-back direction, the second direction YY may be the left-right direction, and the third direction ZZ may be the up-down direction. Figure 9 Next, the specific installation position of the second water receiving tray 5000 will be introduced. The second water receiving tray 5000 is arranged on one side of the heat exchange component 1000 along the second direction YY. Taking

[0120] the orientation of (the indoor unit 1 is in the vertical use state) as a reference, the second water receiving tray 5000 may be arranged on the left side of the heat exchange component 1000 along the left-right direction, or may be arranged on the right side of the heat exchanger 110 along the left-right direction. In some embodiments of the present application, the case where the second water receiving tray 5000 is arranged on the right side of the heat exchange component 1000 along the left-right direction is taken as an example for illustration. It can be understood that when the indoor unit 1 is in the horizontal use state, the second water receiving tray 5000 is on the lower side of the indoor unit 1 along the gravity direction. At this time, the second direction YY is the gravity direction, and at least two heat exchangers 110 are spaced apart along the third direction ZZ.

[0121] When used vertically, the condensed water and the leaked refrigerant will sink under the action of gravity and accumulate in the first water receiving tray 3000. In order to prevent the first refrigerant sensor 200 from being immersed in the condensed water and the liquid refrigerant, please refer to Figures 13 - 14 . Therefore, in the embodiments of the present application, along the third direction ZZ, the distance between the first refrigerant sensor 200 and the first water receiving tray 3000 is h, and h satisfies: 50 mm ≤ h ≤ 70 mm, that is, h may be 50 mm, 55 mm, 60 mm, 65 mm, 70 mm or the range composed of any two of them. In this way, it can prevent the first refrigerant sensor 200 from being soaked in water, thereby ensuring the accuracy and timeliness of the monitoring of the first refrigerant sensor 200.

[0122] Specifically, the heat exchange module 100 includes two heat exchangers 110 that are opposite to each other in the second direction YY. The two heat exchangers 110 are inclined with respect to the direction of gravity, and along the direction of gravity, the distance between the two heat exchangers 110 gradually increases. When the indoor unit 1 is in the vertical state, the third direction ZZ is along the direction of gravity. When the indoor unit 1 is in the horizontal state, the second direction YY is along the direction of gravity. It can be understood that when the indoor unit 1 is in the horizontal state, the heat module 100 is rotated clockwise by 90° relative to the heat exchange module 100 in Figure 11 . At this time, the two heat exchangers 110 are still inclined with respect to the direction of gravity, and along the direction of gravity, the distance between the two heat exchangers 110 gradually increases, and the end with the larger distance corresponds to the second water receiving tray 5000. In this embodiment of the application, the indoor unit 1 in the vertical state is used as an exemplary illustration.

[0123] Please refer to Figures 15 - 16 . On the side of the two heat exchangers 110 close to the air inlet 2000a, a ventilation opening 110a is formed. The first water receiving tray 3000 encloses a ventilation channel 3000a. The ventilation opening 110a, the ventilation channel 3000a, and the air inlet 2000a are connected along the third direction ZZ. The heat exchanger 110 is inclined and combined with the design of gradually increasing distance, which is beneficial to forming a more uniform and effective heat exchange when the air flow passes through the heat exchanger 110. This design enables the air flow to more fully contact the surface of the heat exchanger 110 during the flow process, thereby improving the heat transfer efficiency and accelerating the heating or cooling speed of the indoor air.

[0124] Due to the inclination and distance change of the heat exchanger 110, the air flow entering the heat exchange module 100 can naturally form a more reasonable distribution while being guided by the heat exchanger 110. This distribution helps to reduce the dead corners of the air flow and improve the air circulation efficiency of the entire system, thereby further enhancing the heat exchange performance.

[0125] The ventilation channel 3000a formed by the first water receiving tray 3000 enclosing is connected to the ventilation opening 110a and the air inlet 2000a along the third direction ZZ, which can improve the drainage performance. In the cooling mode, water droplets may condense on the surface of the heat exchanger 110. The inclined heat exchanger 110 helps the water droplets to quickly slide down along the direction of gravity into the first water receiving tray 3000, reducing the wind resistance and energy efficiency loss caused by water droplets staying on the heat exchanger 110, and at the same time avoiding the inconvenience caused by water droplets dripping into the indoor space.

[0126] To facilitate the support of the heat exchanger 110, refer to Figures 16 - 17, the first water receiving tray 3000 is formed with an annular water receiving groove 3000b. The water receiving groove 3000b includes two first water receiving grooves 3100b oppositely arranged along the first direction XX and two second water receiving grooves 3200b oppositely arranged along the second direction YY. The first water receiving grooves 3100b and the second water receiving grooves 3200b are communicated. Two heat exchangers 110 are respectively installed in the corresponding two second water receiving grooves 3200b. The connectivity of the first water receiving grooves 3100b and the second water receiving grooves 3200b further ensures the uniform distribution and effective collection of condensed water in the entire water receiving groove 3000b, avoiding problems such as local water accumulation or poor water flow.

[0127] Please continue to refer to Figure 16 , two heat exchangers 110 are installed in the corresponding two second water receiving grooves 3200b, optimizing the layout of the entire heat exchange assembly 1000, making the installation between the heat exchange assembly 1000 and the first water receiving tray 3000 more compact. Moreover, the condensed water on the heat exchangers 110 can also flow along the shells of the heat exchangers 110 into the second water receiving grooves 3200b. The condensed water of the elbow sections 1112 at the front end and the rear end in the first direction XX can fall into the first water receiving tray 3000, and the leaked refrigerant can also be received by the first water receiving tray 3000. Through the communicated first water receiving grooves 3100b and second water receiving grooves 3200b, it can be avoided that the condensed water and the refrigerant flow into the room. At the same time, it ensures the uniform distribution and effective collection of condensed water in the entire water receiving groove 3000b, avoiding problems such as local water accumulation or poor water flow.

[0128] Since the bottom of the heat exchanger 110 is installed in the second water receiving groove 3200b, occupying the middle of the second water receiving groove 3200b, in order to improve the drainage smoothness, a drain port 3100 is opened in the first water receiving groove 3100b on the same side of the heat exchange module 100 as the first refrigerant sensor 200. Through the drain port 3100, the liquid refrigerant and the condensed water can be discharged in time.

[0129] In order to quickly discharge the liquid refrigerant and the condensed water in the first water receiving groove 3100b, in the embodiment of the present application, refer to Figures 17 - 18 , the bottom surface of the first water receiving groove 3100b includes a water guiding surface 3200 connecting the drain port 3100. From the side of the water guiding surface 3200 far away from the drain port 3100 to the side close to the drain port 3100, the water guiding surface 3200 gradually descends along the third direction ZZ. The design of the water guiding surface 3200 enables the liquid in the first water receiving groove 3100b to quickly flow along the water guiding surface 3200 to the drain port 3100, thus accelerating the drainage process. This natural flow under the guidance of gravity reduces the time required for drainage and improves the drainage efficiency.

[0130] Considering that the indoor unit 1 also has a horizontal usage state, at this time, the second water receiving tray 5000 is used to receive the refrigerant and condensed water that sink under the action of gravity. Therefore, in order to enable the liquid in the second water receiving tray 5000 to be discharged in time, a water guiding surface 3200 is also provided on the second water receiving tray 5000. As Figures 17 - 18 shown, from the side of the water guiding surface 3200 far away from the drain opening 3100 to the side close to the drain opening 3100, the water guiding surface 3200 gradually descends along the second direction YY. In this way, the condensed water and liquid refrigerant can also be quickly discharged through the water guiding surface 3200 of the second water receiving tray 5000.

[0131] It should be understood that due to the existence of the water guiding surface 3200, the refrigerant will gather towards the drain opening 3100. Therefore, the refrigerant concentration at the drain opening 3100 is the highest. Therefore, in order to improve the accuracy of refrigerant monitoring, the first refrigerant sensor 200 is arranged at the drain opening 3100.

[0132] Specifically, when the indoor unit 1 is in the vertical state, taking Figure 19 the first direction XX shown as the front-back direction, the second direction YY as the left-right direction, and the third direction ZZ as the gravity direction, it is defined that the heat exchange module 100 has a first central plane JJ and a second central plane KK. The first central plane JJ and the second central plane KK are perpendicular to each other, and the first central plane JJ is perpendicular to the third direction ZZ, and the second central plane KK is perpendicular to the second direction YY. In this way, the first refrigerant sensor 200 is located below the first central plane JJ and on the right side of the second central plane, and the drain opening 3100 is also located at the lower end of the first central plane JJ and on the right side of the second central plane KK. In this way, the first refrigerant sensor 200 can ensure the accuracy and timeliness of refrigerant monitoring.

[0133] When the indoor unit 1 is in the horizontal state, the first direction XX is the front-back direction, the second direction YY is the gravity direction, and the third direction ZZ is the left-right direction. At this time, it is defined that the indoor unit 1 has a first central plane JJ and a second central plane KK (consistent with the first central plane JJ and the second central plane KK mentioned above). In this way, the first refrigerant sensor 200 is located below the second central plane KK and on the left side of the first central plane. At this time, the drain opening 3100 is also located below the second central plane KK and on the left side of the first central plane. Then, the first refrigerant sensor 200 can ensure the accuracy and timeliness of refrigerant monitoring when the indoor unit 1 is in the horizontal state.

[0134] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of this application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings. This is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and cannot be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0135] The above are only the preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application.

Claims

1. A heat exchange component, characterized in that: include: A heat exchange module, comprising a heat exchanger, wherein the heat exchanger comprises a heat exchange tube, wherein the heat exchange tube comprises a straight tube section and a curved tube section which are alternately connected in sequence along an extension direction thereof, wherein the straight tube section is distributed along a first direction, and wherein the curved tube section is located on one side of the straight tube section along the first direction; as well as The first refrigerant sensor is connected to the heat exchange module and is located at one side of the heat exchange module along the first direction. Along the gravity direction, the first refrigerant sensor is located at the bottom end of the heat exchange module.

2. The heat exchange assembly according to claim 1, characterized in that: The heat exchange module comprises: at least two of the heat exchangers are spaced apart and distributed along a second direction, the second direction being perpendicular to the first direction; and A first mounting plate connected between two adjacent heat exchangers, wherein the first mounting plate is arranged on one side of the heat exchanger along the first direction; Wherein, the first refrigerant sensor is installed on the first mounting plate.

3. The heat exchange assembly according to claim 2, characterized in that: The heat exchanger also includes: The first side plate and the first mounting plate are located on the same side of the straight pipe section along the first direction. The straight pipe section passes through the first side plate. The first mounting plate is connected to the first side plate.

4. The heat exchange assembly according to claim 3, characterized in that: The first side plate comprises: Side plate body; The first flange is formed by bending the side plate body, and the side plate body is relatively fixed to the first mounting plate.

5. The heat exchange assembly according to claim 2, characterized in that: The first mounting plate comprises: Mounting plate body; The second flange is formed by bending the mounting plate body, and the mounting plate body is relatively fixed to the heat exchanger.

6. The heat exchange assembly according to claim 2, characterized in that: The heat exchange component also includes: The electrical connection line is electrically connected to the first refrigerant sensor. The first mounting plate has a wire passing hole. The electrical connection line passes through the wire passing hole. An elastic shielding portion surrounding the electrical connection line is provided in the wire passing hole.

7. The heat exchange assembly according to claim 2, characterized in that: The heat exchange module includes two heat exchangers, which are arranged obliquely relative to the direction of gravity, and the distance between the two heat exchangers gradually increases along the direction of gravity; wherein the first direction is perpendicular to the direction of gravity.

8. The heat exchange assembly according to claim 1, characterized in that: The heat exchange module also includes: A refrigerant distribution pipe, wherein the refrigerant distribution pipe comprises a plurality of capillary tubes, and the heat exchanger comprises a plurality of the heat exchange tubes, each of the capillary tubes is connected to each of the heat exchange tubes, and along the first direction, the refrigerant distribution pipe and the first refrigerant sensor are located on the same side of the straight pipe section.

9. An indoor unit, characterized in that: include: A housing, the housing having an air inlet and an air outlet, wherein the air inlet and the air outlet are respectively located on opposite sides of the housing along a third direction; wherein the first direction is perpendicular to the third direction; A first water receiving tray is located in the housing and is located along the third direction on a side of the housing where the air inlet is located; and The heat exchange assembly according to any one of claims 1 to 8, wherein the heat exchange assembly is arranged at an upper end of the first water receiving tray.

10. The indoor unit according to claim 9, characterized in that: Along the third direction, a distance between the first refrigerant sensor and the first water receiving tray is h, and h satisfies: 50 mm≤h≤70 mm.

11. The indoor unit according to claim 9, characterized in that: The heat exchange module includes two heat exchangers, the two heat exchangers are arranged obliquely relative to the direction of gravity, and the distance between the two heat exchangers gradually increases along the direction of gravity, and the two heat exchangers form a vent on a side close to the air inlet; The water receiving tray is surrounded to form a ventilation channel; Wherein, the vent, the ventilation channel and the air inlet are connected along a third direction.

12. The indoor unit according to claim 11, characterized in that: The first water receiving tray is formed with an annular water receiving groove, and the water receiving groove includes two first water receiving grooves arranged opposite to each other along a first direction and two second water receiving grooves arranged opposite to each other along a second direction, the first water receiving groove and the second water receiving groove are connected, and the two heat exchangers are respectively installed on the corresponding two second water receiving grooves; wherein, along the first direction, the first water receiving groove located on the same side of the heat exchange module as the first refrigerant sensor is provided with a drain outlet, wherein the first direction, the gravity direction and the second direction are arranged perpendicular to each other.

13. The indoor unit according to claim 12, characterized in that: The bottom surface of the first water receiving trough includes a water guiding surface connected to the drain outlet, and the water guiding surface gradually descends along the third direction from a side of the water guiding surface away from the drain outlet to a side close to the drain outlet.

14. A HVAC system, characterized in that: include: compressor; The indoor unit according to any one of claims 9 to 13; Outdoor unit; The throttling component, the compressor, the indoor unit, the throttling component and the outdoor unit are connected in sequence.

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