Heat exchange assembly and air conditioning system

Abstract

The utility model provides a heat exchange assembly and an air conditioning system. The heat exchange assembly comprises a shell. A heat exchanger; a conduction structure; and a leak detection mechanism. According to the heat exchange assembly and the air conditioning system, the first space and the second space formed by the two ends of the heat exchanger are communicated through the conduction structure, so that gas in the first space and gas in the second space can be conducted and exchanged; when a refrigerant leaks from the first space or the second space, the refrigerant leaked from the first space or the second space can flow between the first space and the second space through the conduction structure, and the flowing gas in the shell cannot influence the refrigerant in the conduction structure, so that the detection reliability of the leaked refrigerant can be ensured, the use experience of a user is improved, and the use experience of the user is improved. And the first space and the second space are conducted through the conduction structure, so that the leakage detection mechanism can be selectively installed according to the available space of the first space or the second space, installation of the leakage detection mechanism is facilitated, and the production cost of the heat exchange assembly is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air processing equipment, in particular to a heat exchange component and an air conditioning system. Background Art

[0002] As global temperatures gradually rise and the global greenhouse effect becomes increasingly severe, countries are beginning to implement carbon neutrality programs. The air conditioning industry is beginning to switch to low-carbon refrigerants to achieve the goal of carbon neutrality. However, low-carbon refrigerants have a drawback: they are flammable and combustible. Existing technologies typically use refrigerant sensors to detect refrigerant leaks. When a refrigerant leak occurs, emergency measures such as triggering the fan to operate or suppressing fan operation are taken to reduce the refrigerant concentration. However, the refrigerant sensors in existing air conditioners cannot accurately detect refrigerants, seriously affecting the safety and reliability of the heat exchange components. Utility Model Content

[0003] In order to solve the technical problem in the existing technology that refrigerant leakage cannot be reliably detected, which affects safety and reliability, a heat exchange component and air-conditioning system are provided that use a conductive structure to guide the leaked refrigerant to a leakage detection mechanism to ensure detection effect and safety and reliability.

[0004] A heat exchange component, comprising:

[0005] case;

[0006] a heat exchanger disposed in the shell, the heat exchanger having a first end and a second end opposite to each other, the first end and the shell together enclosing a first space, and the second end and the shell together enclosing a second space;

[0007] a conducting structure, wherein the conducting structure is disposed in the housing, and the first space and the second space are connected via the conducting structure;

[0008] A leakage detection mechanism is provided in the first space or the second space.

[0009] The conductive structure is in communication with the lower portion of the first space; and / or the conductive structure is in communication with the lower portion of the second space.

[0010] The heat exchange assembly also includes a water receiving pan, which is arranged in the shell and located below the heat exchanger. The first side plate of the water receiving pan, the first end of the heat exchanger and the inner wall of the shell together form the first space, the second side plate of the water receiving pan, the second end of the heat exchanger and the interior of the shell together form the second space, and the conductive structure is arranged in the water receiving pan.

[0011] The heat exchange assembly further includes a water receiving tray cover, which is disposed in the water receiving tray. The water receiving tray cover and the water receiving tray form a storage cavity, through which the first space is connected to the second space, and the storage cavity constitutes the conduction structure.

[0012] The water receiving tray is provided with a first limiting structure, and the water receiving tray cover is provided with a second limiting structure, and the first limiting structure and the second limiting structure are matched with each other in limiting manner.

[0013] Part of the water receiving tray cover protrudes away from the water receiving tray to form a conducting groove. The conducting groove and the water receiving tray together form a conducting channel. The conducting channel is connected to both the first space and the second space. The conducting channel constitutes the conducting structure.

[0014] The heat exchange assembly further includes a conducting pipe, which is disposed below the heat exchanger. One end of the conducting pipe is communicated with the first space, and the other end is communicated with the second space. The conducting pipe constitutes the conducting structure.

[0015] The heat exchange assembly further includes an alarm mechanism, which is electrically connected to the leakage detection mechanism.

[0016] An air flow channel is provided in the shell, a middle portion of the heat exchanger is provided in the air flow channel, and both the first space and the second space are relatively sealed from the air flow channel.

[0017] The heat exchange assembly is applied to an indoor unit and / or an outdoor unit.

[0018] An air conditioning system includes the above-mentioned heat exchange component.

[0019] The heat exchange component and air-conditioning system provided by the present invention utilize a conducting structure to connect the first space and the second space formed at both ends of the heat exchanger, so that the gas in the first space and the gas in the second space can be conducted and exchanged, and the refrigerant leaked in the first space or the second space can flow between the first space and the second space through the conducting structure, while the gas flowing in the shell cannot affect the refrigerant in the conducting structure, thereby ensuring the reliable detection of the leaked refrigerant, avoiding the problem in the prior art that the airflow in the heat exchange component blows away the leaked refrigerant and cannot be reliably detected, and can also avoid the heat exchange component being caught in a refrigerant leak and triggering the fan to work - the fan blows to reduce the refrigerant concentration and stops - the refrigerant continues to leak and triggers the fan to work again. The cycle ensures the reliability of the detection of the leaked refrigerant and the working reliability of the heat exchange component, and improves the user experience. Moreover, the conducting structure conducts the first space and the second space, so that the leakage detection mechanism can be selectively installed according to the available space of the first space or the second space, which facilitates the installation of the leakage detection mechanism and reduces the production cost of the heat exchange component. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of the first end direction of the heat exchanger of the heat exchange assembly provided in an embodiment of the present utility model;

[0021] Figure 2 A schematic structural diagram of the second end direction of the heat exchanger of the heat exchange assembly provided in an embodiment of the present utility model;

[0022] Figure 3 A three-dimensional diagram of a heat exchanger of a heat exchange assembly provided in an embodiment of the present utility model;

[0023] Figure 4 A schematic structural diagram of a water receiving tray and a water receiving tray cover of a heat exchange assembly provided in an embodiment of the present utility model;

[0024] Figure 5 A cross-sectional view of a water receiving tray and a water receiving tray cover of a heat exchange assembly provided in an embodiment of the present utility model;

[0025] Figure 6 A schematic structural diagram of a water receiving tray cover of a heat exchange assembly provided in an embodiment of the present utility model;

[0026] Figure 7 A schematic structural diagram of a water receiving tray and a conducting pipe of a heat exchange assembly provided in an embodiment of the present utility model;

[0027] In the picture:

[0028] 1. Heat exchanger; 11. First end; 12. Second end; 21. First space; 22. Second space; 3. Water receiving tray; 31. First side plate; 4. Water receiving tray cover; 41. Conducting groove; 5. Conducting pipe. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is 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 invention and are not intended to limit the present invention.

[0030] In order to help those skilled in the art better understand the present invention, 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 should fall within the scope of protection of the present invention.

[0031] It should be noted that the terms "first," "second," and the like in the specification and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate for the embodiments of the present invention described herein. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatuses.

[0032] It should be noted that in the description of this utility model, terms such as "upper," "lower," "left," "right," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for ease of description and are not intended to indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific position. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "set," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0034] As global temperatures gradually rise and the global greenhouse effect becomes increasingly severe, countries are beginning to implement carbon neutrality initiatives. The air conditioning industry is beginning to switch to low-carbon refrigerants to achieve the goal of carbon neutrality. However, low-carbon refrigerants have a drawback: they are flammable and combustible. Conventional technology typically uses refrigerant sensors to detect refrigerant leaks. When a leak occurs, emergency measures such as triggering the fan to operate or suppressing fan operation are taken to reduce the refrigerant concentration. However, air conditioners contain a heat exchanger, with refrigerant pipe connectors and U-shaped pipe sections at both ends. This creates a large number of potential leak points at both ends of the heat exchanger. Conventional technology only uses a refrigerant sensor at one end of the heat exchanger to detect leaks. Refrigerant leaking from the other end can only flow through the internal space of the heat exchanger to the gas sensor and be detected. However, when the heat exchanger is in operation, the leaked refrigerant is blown away by the airflow from the fan, making it impossible for the refrigerant sensor to accurately detect the leak, seriously affecting the safety and reliability of the heat exchanger. In particular, the combination of indoor and outdoor units in a multi-split system is relatively complex, and it is possible for one outdoor unit to be paired with multiple indoor units. When a customer uses a small-capacity indoor unit, it can be placed in the room as required. When the air conditioning system is operating normally and a refrigerant leak occurs, the corresponding refrigerant sensor will not be able to effectively detect the refrigerant leak because the air conditioning system's fan is constantly running, constantly circulating the air inside the room. At this time, there is a risk that the flammable refrigerant in the entire air conditioning system will flow into this small room. If the user in the room performs operations such as lighting a fire to cook, it may cause a high risk of fire.

[0035] To this end, this application provides a Figures 1 to 7The heat exchange assembly shown includes: a shell; a heat exchanger 1, which is arranged in the shell, and the heat exchanger 1 has a first end 11 and a second end 12 relative to each other, the first end 11 and the shell together enclose a first space 21, and the second end 12 and the shell together enclose a second space 22; a conductive structure, which is arranged in the shell, and the first space 21 and the second space 22 are connected through the conductive structure; and a leakage detection mechanism, which is arranged in the first space 21 or the second space 22. The first space 21 and the second space 22 formed at the two ends of the heat exchanger 1 are connected by a conducting structure, so that the gas in the first space 21 and the gas in the second space 22 can be conducted and exchanged, and the refrigerant leaked in the first space 21 or the second space 22 can flow between the first space 21 and the second space 22 through the conducting structure, while the gas flowing in the shell cannot affect the refrigerant in the conducting structure, thereby ensuring the reliable detection of the leaked refrigerant, avoiding the problem in the prior art that the airflow in the heat exchange component blows away the leaked refrigerant and cannot be reliably detected, and also avoiding the heat exchange component falling into a refrigerant leakage and triggering the fan to work - the fan blows to reduce the refrigerant concentration and stops - the refrigerant continues to leak and triggers the fan to work again. The cycle ensures the reliability of the detection of the leaked refrigerant and the heat exchange component. The working reliability is improved, and the user experience is improved. The conducting structure conducts the first space 21 and the second space 22, so that the leakage detection mechanism can be selectively installed according to the available space of the first space 21 or the second space 22. When the leakage detection mechanism is set in the first space 21, the leaked refrigerant in the second space 22 can flow into the first space 21 through the conducting structure, thereby ensuring the detection reliability of the leakage detection mechanism. Similarly, when the leakage detection mechanism is set in the second space 22, the leaked refrigerant in the first space 21 can flow into the second space 22 through the conducting structure, thereby ensuring the detection reliability of the leakage detection mechanism. This avoids the problem of setting up leakage detection mechanisms in both the first space 21 and the second space 22, facilitates the installation of the leakage detection mechanism, and reduces the production cost of the heat exchange component.

[0036] Among them, since the molar mass of the refrigerant is greater than the molar mass of the air, the refrigerant will accumulate at the bottom of the first space 21 or the second space 22. For this reason, the conductive structure is connected to the lower part of the first space 21, so that the leaked refrigerant can flow smoothly into the conductive structure, thereby facilitating the conductive structure to exchange the gas in the first space 21 and the second space 22.

[0037] Similarly, the conducting structure is connected to the lower part of the second space 22 , so that the leaked refrigerant can smoothly flow into the conducting structure, thereby facilitating the conducting structure to exchange the gas in the first space 21 and the second space 22 .

[0038] In which, the heat exchange component also includes a water receiving pan 3, which is arranged in the shell and located below the heat exchanger 1. The first side plate 31 of the water receiving pan 3, the first end 11 of the heat exchanger 1 and the inner wall of the shell together form the first space 21, and the second side plate of the water receiving pan 3, the second end 12 of the heat exchanger 1 and the interior of the shell together form the second space 22. The conducting structure is arranged in the water receiving pan 3. At this time, it can ensure that the water receiving pan 3 is located at the lowest position in the shell, and ensure that the water receiving pan 3 can reliably receive the condensed water generated by the heat exchanger 1. The conducting structure is arranged in the water receiving pan 3 and will not affect the receiving capacity of the water receiving pan 3. At the same time, it can also ensure that the conducting structure is located at the bottom of the shell as much as possible, and ensure that the leaked refrigerant can flow through the conducting structure, thereby ensuring the detection effect of the leakage detection mechanism and improving the working reliability of the heat exchange component.

[0039] Optionally, baffles are provided at the first end 11 and the second end 12 of the heat exchanger 1, and the baffle, the first end 11 of the heat exchanger, the first side plate 31 of the water receiving tray 3 and the inner wall of the shell together form a first space 21, and the baffle, the second end 12 of the heat exchanger, the second side plate 31 of the water receiving tray 3 and the inner wall of the shell together form a second space 22, thereby ensuring the sealing effect of the first space 21 and the second space 22.

[0040] Since the water receiving pan 3 needs to receive the condensed water generated by the heat exchanger 1, and the air flow needs to flow through the heat exchanger 1 to perform heat exchange, part of the air flow will enter the water receiving pan 3 and flow. As an embodiment, the heat exchange component also includes a water receiving pan cover 4, which is arranged in the water receiving pan 3, and the water receiving pan cover 4 and the water receiving pan 3 form a storage cavity. The first space 21 is connected to the second space 22 through the storage cavity. The storage cavity constitutes the conducting structure. The water receiving pan cover 4 can block this part of the air flow to prevent the air flow from flowing into the storage cavity, thereby ensuring the flow reliability of the leaked refrigerant between the first space 21 and the second space 22 through the storage cavity, thereby ensuring the detection effect of the leakage detection mechanism and improving the working reliability of the heat exchange component.

[0041] The water receiving pan 3 is provided with a first limiting structure, and the water receiving pan cover 4 is provided with a second limiting structure. The first limiting structure and the second limiting structure cooperate to limit the position. The cooperation of the first limiting structure and the second limiting structure ensures that the water receiving pan cover 4 and the water receiving pan 3 are securely installed and sealed, preventing airflow from entering the storage chamber and affecting the flow of leaked refrigerant. During use, the condensed water generated on the heat exchanger 1 will first drip onto the water receiving pan cover 4, and then flow into the water receiving pan cover 4 through the matching position of the first limiting structure and the second limiting structure, ensuring that the water receiving pan 3 can reliably receive the condensed water. At the same time, since the condensed water needs to pass through the matching position of the first limiting structure and the second limiting structure, the matching position of the first limiting structure and the second limiting structure will form a liquid seal, and the internal space of the storage chamber and the shell can be closed under the action of the liquid seal. The gas cannot enter the storage chamber through the matching position of the first limiting structure and the second limiting structure, and the refrigerant in the storage chamber will not pass through the matching position of the first limiting structure and the second limiting structure due to its own molar weight and the action of the liquid seal, thereby ensuring the flow reliability of the refrigerant between the first space 21 and the second space 22.

[0042] Optionally, part of the water receiving tray cover 4 protrudes in a direction away from the water receiving tray 3 to form a conducting groove 41, and the conducting groove 41 and the water receiving tray 3 together form a conducting channel, and the conducting channel is connected to both the first space 21 and the second space 22. The conducting channel constitutes the conducting structure, which means that the water receiving tray cover 4 can be as close to the bottom of the water receiving tray 3 as possible, thereby ensuring the working reliability of the water receiving tray 3. At the same time, providing the conducting groove 41 and forming the conducting channel can increase the connection efficiency between the first space 21 and the second space 22 as much as possible, improve the flow capacity of the leaked refrigerant, and thereby improve the detection efficiency of the leakage detection mechanism.

[0043] As another embodiment, the heat exchange component also includes a conducting pipe 5, which is arranged below the heat exchanger 1, and one end of the conducting pipe 5 is connected to the first space 21, and the other end is connected to the second space 22. The conducting pipe 5 constitutes the conducting structure, and the conducting pipe 5 is used to connect the first space 21 and the second space 22. The leaked refrigerant can flow at both ends of the heat exchanger 1 through the conducting structure, and the gas flowing in the shell cannot affect the refrigerant in the conducting structure, thereby ensuring reliable detection of leaked refrigerant, avoiding the problem in the prior art that the airflow in the heat exchange component blows away the leaked refrigerant and cannot be reliably detected, thereby ensuring the reliability of detection of leaked refrigerant and the working reliability of the heat exchange component.

[0044] like Figure 1As shown, the heat exchange component also includes a liquid separation structure, which is arranged in the first space 21, and the communication position between the liquid separation structure and the heat exchanger 1 is located in the first space 21. Since the connection between the liquid separation structure and the heat exchanger 1 is made during the installation process, the possibility of leakage between the liquid separation structure and the heat exchanger 1 is the greatest. Therefore, the leakage detection mechanism is arranged in the first space 21. At this time, the leakage detection mechanism is closest to the connection position between the liquid separation structure and the heat exchanger 1, thereby ensuring the detection efficiency of the leakage detection mechanism.

[0045] The heat exchange assembly also includes an alarm mechanism electrically connected to the leak detection mechanism. When the leak detection mechanism detects a refrigerant leak, it will directly sound an alarm to alert the user of the refrigerant leak or directly notify relevant personnel to perform repairs, thereby improving the safety and reliability of the heat exchange assembly.

[0046] An air flow channel is provided in the shell, the middle part of the heat exchanger 1 is provided in the air flow channel, and the first space 21 and the second space 22 are relatively sealed with the air flow channel, so as to prevent the refrigerant leaking in the first space 21 or the second space 22 from flowing into the air flow channel, and also to prevent the gas in the air flow channel from entering the first space 21 and the second space 22 and taking away the leaked refrigerant, thereby ensuring that the leaked refrigerant can be reliably detected by the leakage detection mechanism, thereby ensuring the detection reliability of the leaked refrigerant and the working reliability of the heat exchange component.

[0047] The heat exchange assembly is applied to an indoor unit and / or an outdoor unit.

[0048] An air conditioning system includes the above-mentioned heat exchange component.

[0049] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A heat exchange component, characterized in that: include: case; A heat exchanger (1), the heat exchanger (1) being arranged in the shell, the heat exchanger (1) having a first end (11) and a second end (12) opposite to each other, the first end (11) and the shell together enclosing a first space (21), and the second end (12) and the shell together enclosing a second space (22); a conducting structure, the conducting structure being arranged in the housing, and the first space (21) and the second space (22) being connected via the conducting structure; A leakage detection mechanism is provided in the first space (21) or the second space (22).

2. The heat exchange assembly according to claim 1, characterized in that: The conductive structure is in communication with the lower portion of the first space (21); and / or the conductive structure is in communication with the lower portion of the second space (22).

3. The heat exchange assembly according to claim 1, characterized in that: The heat exchange assembly further comprises a water receiving pan (3), the water receiving pan (3) being arranged in the shell, and the water receiving pan (3) being located below the heat exchanger (1), the first side plate (31) of the water receiving pan (3), the first end (11) of the heat exchanger (1) and the inner wall of the shell together forming the first space (21), the second side plate of the water receiving pan (3), the second end (12) of the heat exchanger (1) and the interior of the shell together forming the second space (22), and the conduction structure being arranged in the water receiving pan (3).

4. The heat exchange assembly according to claim 3, characterized in that: The heat exchange assembly further comprises a water receiving tray cover (4), the water receiving tray cover (4) being arranged in the water receiving tray (3), and the water receiving tray cover (4) and the water receiving tray (3) forming a storage cavity, the first space (21) being connected to the second space (22) through the storage cavity, and the storage cavity constituting the conduction structure.

5. The heat exchange assembly according to claim 4, characterized in that: The water receiving tray (3) is provided with a first limiting structure, and the water receiving tray cover (4) is provided with a second limiting structure, and the first limiting structure and the second limiting structure are matched in limiting manner.

6. The heat exchange assembly according to claim 4, characterized in that: A portion of the water receiving tray cover (4) protrudes in a direction away from the water receiving tray (3) to form a conducting groove (41), and the conducting groove (41) and the water receiving tray (3) together form a conducting channel, and the conducting channel is connected to both the first space (21) and the second space (22), and the conducting channel constitutes the conducting structure.

7. The heat exchange assembly according to claim 1, characterized in that: The heat exchange assembly further comprises a conducting pipe (5), the conducting pipe (5) being arranged below the heat exchanger (1), and one end of the conducting pipe (5) being in communication with the first space (21), and the other end being in communication with the second space (22), the conducting pipe (5) constituting the conducting structure.

8. The heat exchange assembly according to claim 1, characterized in that: The heat exchange assembly further includes an alarm mechanism, which is electrically connected to the leakage detection mechanism.

9. The heat exchange assembly according to claim 1, characterized in that: An air flow channel is provided in the shell, the middle portion of the heat exchanger (1) is provided in the air flow channel, and the first space (21) and the second space (22) are both relatively sealed to the air flow channel.

10. The heat exchange assembly according to claim 1, characterized in that: The heat exchange assembly is applied to an indoor unit and / or an outdoor unit.

11. An air conditioning system, characterized in that: The heat exchange component comprises the heat exchange component according to any one of claims 1 to 10.

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