Heat exchanger fixing frame, heat exchanger, air conditioner indoor unit and air conditioner

Abstract

The utility model provides a heat exchanger fixing frame, a heat exchanger, an air conditioner indoor unit and an air conditioner, relates to the technical field of air conditioners, and solves the technical problem that in the prior art, refrigerant leakage detection precision of an air conditioner is low. The heat exchanger fixing frame, the heat exchanger, the air conditioner indoor unit and the air conditioner comprise a fixing frame body, a plurality of containing grooves used for containing bent parts on a heat exchanger body are formed in the fixing frame body, and a plurality of communicating grooves used for communicating with one another are formed among the containing grooves. According to the heat exchanger fixing frame, the heat exchanger, the air conditioner indoor unit and the air conditioner, the detection precision can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a heat exchanger fixing frame, a heat exchanger, an air conditioning indoor unit and an air conditioner. Background Art

[0002] Traditional chlorofluorocarbon (CFC) refrigerants have caused widespread concern over their damage to the ozone layer and greenhouse effect. To this end, the international community has formulated a series of conventions, including the Vienna Convention, the Montreal Protocol, and the Kyoto Protocol. In September 2021, the Kigali Amendment officially came into effect in my country, requiring a gradual reduction in the use of hydrofluorocarbons starting in 2024. The development and selection of refrigerants that can take into account both environmental protection requirements and high performance has become an urgent need for the air-conditioning and refrigeration industry. Compared with traditional refrigerants such as R22, R410A, and R134a, R290 refrigerant has an extremely low GWP and is an environmentally friendly natural refrigerant with the greatest potential to replace traditional chlorofluorocarbon refrigerants. However, R290 is flammable and explosive, and improving the safety of R290 air conditioners is a technical problem that needs to be solved urgently for its promotion and use.

[0003] In the existing technology, gas detection sensors are generally installed to monitor the refrigerant concentration in the use environment. When the refrigerant concentration in the use environment is too high, an alarm is issued in time, and ventilation is opened to reduce gas accumulation and avoid safety accidents such as combustion and explosion caused by refrigerant leakage. However, the following problems still exist:

[0004] 1) Safety issues caused by high detection accuracy and false positive rate. During the actual monitoring process of the gas detection sensor, there are errors in the concentration detection of different leakage locations and directions. This results in low detection accuracy and high false positive rate of refrigerant leaks in actual use environments, posing a major safety risk.

[0005] 2) The problem of too many detection sensors and high costs. In order to improve detection reliability, the existing technology avoids risks by deploying multiple sensors at different potential leakage points. However, increasing the number of sensors will increase product costs and reduce the market competitiveness of the product.

[0006] 3) The location where leakage is likely to occur is at the bend of the heat exchanger, and the bend is located at the very edge of the air conditioner, which makes it more difficult to accurately detect the result and the detection accuracy cannot be guaranteed. Utility Model Content

[0007] The present invention aims to provide a heat exchanger mounting bracket, a heat exchanger, an air conditioner indoor unit, and an air conditioner to address the low accuracy of refrigerant leak detection in existing air conditioners. The various technical effects achieved by the preferred technical solution among the various technical solutions provided by the present invention are detailed below.

[0008] To achieve the above objectives, the present invention provides the following technical solutions:

[0009] The heat exchanger fixing frame provided by the utility model comprises a fixing frame body, wherein the fixing frame body is provided with a plurality of accommodating grooves for accommodating the bent parts of the heat exchanger body, and a plurality of conducting grooves for mutual conduction are provided between the plurality of accommodating grooves.

[0010] Optionally, there are at least two rows of accommodating grooves, and at least two rows of accommodating grooves are arranged in parallel. The conducting groove includes a parallel groove and an extension groove. The parallel groove is arranged between two parallel accommodating grooves, and the extension groove is arranged between two adjacent accommodating grooves in the same row.

[0011] Optionally, the end position of at least one of the plurality of conducting grooves protrudes from the air inlet end surface of the heat exchanger body.

[0012] Optionally, a nozzle is provided at the end of at least one of the conducting grooves, and the jetting direction of the nozzle is parallel to the air inlet end face of the heat exchanger body.

[0013] A heat exchanger comprises a heat exchanger body and the heat exchanger fixing frame as described above, wherein the first end of the heat exchanger body is fixed on the heat exchanger fixing frame.

[0014] An air conditioner indoor unit comprises an indoor unit body and the heat exchanger according to claim 5, wherein the heat exchanger is arranged in the indoor unit body.

[0015] Optionally, a leakage detection device is further provided in the indoor unit body, and the leakage detection device is provided on the air inlet side of the heat exchanger body and on a side away from the heat exchanger fixing frame.

[0016] Optionally, an air inlet is provided on a side of the indoor unit body located on the heat exchanger fixing frame, and an air outlet is provided on a side of the indoor unit body away from the heat exchanger fixing frame.

[0017] Optionally, an alarm device is further provided in the indoor unit body, and the alarm device is electrically connected to the leakage detection device.

[0018] An air conditioner comprises the air conditioner indoor unit as described above.

[0019] The beneficial effects of the present invention are as follows: the heat exchanger fixing frame, heat exchanger, air conditioner indoor unit and air conditioner provided by the present invention include a fixing frame body, the fixing frame body being used to fix the heat exchanger body, and a plurality of receiving grooves for receiving the bent portion of the heat exchanger body being provided on the fixing frame body. The plurality of receiving grooves are provided corresponding to the bent portion of the heat exchanger body, thereby ensuring that the fixing frame body can position the bent portion of the heat exchanger body, so that the heat exchanger body maintains the bending angle without deformation, thereby playing the role of fixing the heat exchanger body; a plurality of conducting grooves are provided between the plurality of receiving grooves for mutual conduction, and the plurality of conducting grooves enable the plurality of receiving grooves to be mutually conductive. When refrigerant leaks from any bent portion of the heat exchanger body, the leaked refrigerant from any bent portion is easily filled between the plurality of receiving grooves and the conducting grooves, thereby quickly diffusing to the periphery of the heat exchanger body, thereby accelerating the diffusion speed of the refrigerant. The detection device can more quickly detect the concentration change of the refrigerant, promptly issue an alarm or activate the explosion-proof function, thereby improving the detection accuracy and effectively improving the safety of the use of the air conditioner with flammable refrigerant. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a front view of the heat exchanger fixing bracket of the utility model;

[0022] Figure 2 It is a three-dimensional diagram of the heat exchanger fixing frame of the utility model;

[0023] Figure 3 This is a front view of the heat exchanger of the utility model;

[0024] Figure 4 It is a partial cross-sectional view of the heat exchanger of the utility model;

[0025] Figure 5 It is a three-dimensional diagram of the heat exchanger of the utility model;

[0026] Figure 6 It is a schematic diagram of the internal structure of the indoor unit of the air conditioner of the present utility model.

[0027] In the picture:

[0028] 100. Heat exchanger fixing bracket;

[0029] 200, heat exchanger body;

[0030] 300. Leak detection device;

[0031] 400, nozzle;

[0032] 101. Fixed frame body;

[0033] 102. Receiving tank;

[0034] 103, conduction groove;

[0035] 104, parallel groove;

[0036] 105, extension slot;

[0037] 201. Inlet and outlet pipe components. DETAILED DESCRIPTION

[0038] Please refer to the following drawings Figures 1 to 6 And the text content understands the content of the present invention and the difference between the present invention and the prior art. The following is a further detailed description of the technical solution (including the preferred technical solution) of the present invention by means of the accompanying drawings and the enumeration of some optional embodiments of the present invention. It should be noted that: any technical feature and any technical solution in the present embodiment are one or more of a variety of optional technical features or optional technical solutions. In order to describe the need for brevity, it is impossible to exhaustively list all the alternative technical features and alternative technical solutions of the present invention in this document, nor is it convenient for the implementation of each technical feature to emphasize that it is one of the multiple optional implementations. Therefore, those skilled in the art should know that: any technical means provided by the present invention can be replaced or any two or more technical means or technical features provided by the present invention can be combined with each other to obtain a new technical solution. Any technical feature and any technical solution in this embodiment do not limit the scope of protection of the present invention. The scope of protection of the present invention should include any alternative technical solutions that can be thought of by those skilled in the art without paying creative work and new technical solutions obtained by those skilled in the art by combining any two or more technical means or technical features provided by the present invention.

[0039] In the description of the present invention, it should be noted that, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention depending on the specific circumstances.

[0041] The utility model provides a heat exchanger fixing frame, a heat exchanger, an air conditioner indoor unit and an air conditioner, which can improve detection accuracy and effectively improve the use safety of a flammable refrigerant air conditioner.

[0042] The following combination Figures 1 to 6 The technical solution provided by the utility model is described in more detail.

[0043] In the prior art, a heat exchanger fixing frame 100 is provided, and a groove is provided on the heat exchanger fixing frame 100. The bent portion of the heat exchanger main body 200 is fixed by the groove, so that the heat exchanger main body 200 maintains the bending angle without deformation, so that air flows from the windward side through the fins and the fin tube surface after heat exchange, and flows out from the leeward side. The air flowing through the heat exchanger main body 200 does not leak, so the heat exchanger fixing frame 100 plays the role of fixing the heat exchanger main body 200 and sealing.

[0044] However, one side of the heat exchanger body 200 is the bent part of the U-shaped tube. Due to the bending and stretching of the material, there is a problem of thinning of the material thickness and deterioration of strength, which is a potential leakage point where the heat exchanger is prone to leakage; the other side is the inlet and outlet pipe assembly 201 designed to achieve different flow paths, which is connected to the openings at both ends of the U-shaped tube by welding. There may be welding defects, which is also a potential leakage point where the heat exchanger is prone to leakage.

[0045] The present invention provides a heat exchanger fixing frame 100, comprising a fixing frame body 101, wherein the fixing frame body 101 is provided with a plurality of accommodating grooves 102 for accommodating the bent portions of the heat exchanger body 200, and a plurality of conducting grooves 103 are provided between the plurality of accommodating grooves 102 for mutual conduction.

[0046] The heat exchanger fixing frame 100 provided by the present invention includes a fixing frame body 101, which is used to fix the heat exchanger body 200. The fixing frame body 101 is provided with a plurality of receiving grooves 102 for accommodating the bent portion of the heat exchanger body 200. The plurality of receiving grooves 102 are arranged corresponding to the bent portion of the heat exchanger body 200, thereby ensuring that the fixing frame body 101 can position the bent portion of the heat exchanger body 200, so that the heat exchanger body 200 maintains the bending angle without deformation, thereby playing the role of fixing the heat exchanger body 200. A plurality of conducting grooves 103 for mutual conduction are provided between the plurality of receiving grooves 102. The plurality of conducting grooves 103 enable the plurality of receiving grooves 102 to be mutually conductive. When refrigerant leaks from any bent portion of the heat exchanger body 200, the leakage from any bent portion is likely to be quickly filled between the plurality of receiving grooves 102 and the conducting grooves 103, thereby quickly diffusing to the periphery of the heat exchanger body 200, accelerating the diffusion speed of the refrigerant. The detection device can more quickly detect the concentration change of the refrigerant, issue an alarm in time or activate the explosion-proof function, thereby improving the detection accuracy.

[0047] It is understandable that, due to the provision of the conducting groove 103, the conducting groove 103 can connect several receiving grooves 102, thereby ensuring that the refrigerant quickly reaches the leakage detection device 300 when it leaks, thereby improving detection efficiency and accuracy. Regardless of whether the bent portion of the heat exchanger body 200 leaks at different leakage points and in different leakage directions, the relatively closed cavity formed by the receiving groove 102 and its conducting groove 103 can be connected to each other and diffuse outward, solving the problem of low detection accuracy caused by different leakage points and different leakage directions. In addition, when using the nozzle 400 mentioned later, the refrigerant is sprayed in a preset direction through the nozzle 400, so that the leakage detection device 300 can detect the refrigerant leak as quickly as possible, further improving the detection accuracy.

[0048] In some embodiments of the present invention, the accommodating grooves 102 are provided in at least two rows, and at least two rows of the accommodating grooves 102 are arranged in parallel. The conducting grooves 103 include parallel grooves 104 and extension grooves 105. The parallel grooves 104 are arranged between two parallel accommodating grooves 102, and the extension grooves 105 are arranged between two adjacent accommodating grooves 102 in the same row.

[0049] In some of the above-mentioned embodiments of the present invention, the receiving grooves 102 are provided in at least two rows, and at least two rows of receiving grooves 102 are arranged in parallel. The conducting grooves 103 include parallel grooves 104 and extension grooves 105. The parallel grooves 104 and extension grooves 105 are used to connect and conduct several receiving grooves 102 to ensure smooth circulation of refrigerant between the several receiving grooves 102, accelerate the circulation of refrigerant, and detect refrigerant leakage in time.

[0050] It should be noted that the parallel groove 104 is preferably arranged perpendicular to the two parallel accommodating grooves 102 , and the extension groove 105 is preferably a straight groove or a bent groove, and the extension groove 105 is connected between two adjacent accommodating grooves 102 .

[0051] In some embodiments of the present invention, the end of at least one of the plurality of conducting grooves 103 protrudes from the air inlet end surface of the heat exchanger body 200 .

[0052] In some of the above-mentioned embodiments of the present invention, the end position of at least one of the several conducting grooves 103 protrudes from the air inlet end face of the heat exchanger body 200. When the refrigerant leaks from any bent part of the heat exchanger body 200, the leakage of any bent part is likely to fill up the space between the multiple receiving grooves 102 and the conducting groove 103 quickly, and then flow to the other side of the heat exchanger body 200 through the above-mentioned at least one conducting groove 103, so that the refrigerant diffuses outward. The detection device can detect the concentration change of the refrigerant more quickly, issue an alarm or activate the explosion-proof function in time, and improve the detection accuracy.

[0053] It should be noted that the air inlet end face of the heat exchanger, taking a long strip heat exchanger as an example, refers to the end face of the heat exchanger located on the air inlet side for gas to enter, and at least one of the conducting grooves 103 protrudes from the end face, thereby being able to guide the refrigerant leaking from the bent part of the side of the heat exchanger to the air inlet side of the heat exchanger. Under the action of the incoming air, the leaked refrigerant can quickly reach the leakage detection device 300 and can be detected in time, thereby improving the detection efficiency and detection accuracy.

[0054] In some embodiments of the present invention, a nozzle 400 is provided at the end of at least one of the conducting grooves 103 , and the jetting direction of the nozzle 400 is parallel to the air inlet end face of the heat exchanger body 200 .

[0055] In some of the above-mentioned embodiments of the present invention, a nozzle 400 is provided at the end of at least one of the conducting grooves 103. The nozzle 400 can accelerate the circulation of the refrigerant in the conducting groove 103 and the containing groove 102, so that the refrigerant can be discharged quickly and detected by the leakage detection device 300 in time, thereby improving the detection efficiency and detection accuracy; and there is no need to use too many leakage detection devices 300, which can reduce the cost of the air-conditioning product.

[0056] It should be noted that the nozzle 400 is supplied with gas through a gas supply device, so that the nozzle 400 sprays gas to accelerate the circulation of the refrigerant.

[0057] Preferably, since the leakage detection device 300 in the prior art is mostly arranged near the middle of the heat exchanger body 200, the jet direction of the nozzle 400 is parallel to the air inlet end face of the heat exchanger body 200, and the nozzle 400 can spray the refrigerant gas in a set direction so that the refrigerant gas quickly reaches the leakage detection device 300. Since the jet of the nozzle 400 can accelerate the flow of the refrigerant, it can be quickly detected, thereby improving the detection efficiency.

[0058] It can be understood that the jet direction of the nozzle 400 can be adjusted according to the position of the leakage detection device 300, so that the refrigerant gas can be delivered to the vicinity of the leakage detection device 300 in a timely manner so that it can be quickly detected by the leakage detection device 300. When it is detected that the refrigerant concentration exceeds the set value, the alarm or explosion-proof function program is activated.

[0059] The present invention further provides a heat exchanger, comprising a heat exchanger body 200 and the heat exchanger fixing frame 100 as described above, wherein a first end of the heat exchanger body 200 is fixed to the heat exchanger fixing frame 100 .

[0060] The heat exchanger provided by the present invention includes a heat exchanger body 200 and a heat exchanger fixing frame 100. The first end of the heat exchanger body 200 is fixed to the heat exchanger fixing frame 100. When refrigerant leaks from the bent portion of the first end of the heat exchanger body 200, the refrigerant gas can quickly diffuse outward along the receiving groove 102 and the conducting groove 103, thereby accelerating the diffusion of the refrigerant gas, so that it can be quickly detected by the leakage detection device 300, thereby improving the detection accuracy and detection effect.

[0061] The utility model also provides an air-conditioning indoor unit, comprising an indoor unit body and the heat exchanger as described above, wherein the heat exchanger is arranged in the indoor unit body.

[0062] In some embodiments of the present invention, the air conditioner indoor unit includes an indoor unit body, and the heat exchanger is arranged in the indoor unit body. The heat exchanger can increase the diffusion speed of the refrigerant gas and improve the detection accuracy and detection effect of refrigerant leakage.

[0063] In some embodiments of the present invention, a leakage detection device 300 is further provided in the indoor unit body. The leakage detection device 300 is provided on the air inlet side of the heat exchanger and on a side away from the heat exchanger fixing bracket 100 .

[0064] In some of the above-mentioned embodiments of the present invention, the leakage detection device 300 is arranged on the air inlet side of the heat exchanger. The leakage detection device 300 is used to detect the refrigerant gas leakage of the heat exchanger. The leakage detection device 300 is arranged on the side away from the heat exchanger fixing frame 100, that is, close to the heat exchanger inlet and outlet pipe assembly 201 side, close to the electrical box position, so that the refrigerant gas leakage of the entire heat exchanger can be detected by the leakage detection device 300; and it can also reduce the wiring length and wiring difficulty of the leakage detection device 300.

[0065] Since the heat exchanger fixing frame 100 is provided with a receiving groove 102 and a conducting groove 103, the conducting groove 103 connects several receiving grooves 102, so that the refrigerant gas leaked from the bent part of the heat exchanger can accelerate the flow and diffusion, which is convenient for the leakage detection device to detect in time. The leakage detection device 300 is away from one side of the heat exchanger fixing frame 100, which is convenient for the leakage detection device 300 to detect refrigerant leakage on the other side of the heat exchanger, thereby ensuring that refrigerant leakage on both sides of the heat exchanger can be quickly detected, greatly improving the detection efficiency and detection accuracy.

[0066] It should be noted that when a nozzle 400 is provided in the conducting groove 103, the nozzle 400 can accelerate the gas to flow toward the leakage detection device 300, so that the leakage detection device 300 can be provided on a side further away from the heat exchanger fixing frame 100, thereby ensuring that the refrigerant leakage detection of the heat exchanger is more accurate.

[0067] In some embodiments of the present invention, an air inlet is provided on a side of the indoor unit body located at the heat exchanger fixing frame 100 , and an air outlet is provided on a side of the indoor unit body away from the heat exchanger fixing frame 100 .

[0068] In some of the above-mentioned embodiments of the present invention, the air inlet is arranged on one side of the heat exchanger fixing frame 100, and the air outlet is arranged on the side away from the heat exchanger fixing frame 100. When refrigerant leakage occurs at the heat exchanger fixing frame 100, the refrigerant can flow toward the leakage detection device 300 under the acceleration of the incoming air, thereby improving the detection effect.

[0069] In some embodiments of the present invention, an alarm device is further provided in the indoor unit body, and the alarm device is electrically connected to the leakage detection device 300 .

[0070] In some of the above embodiments of the present invention, an alarm device is provided so that when the leakage detection device 300 detects that the refrigerant concentration exceeds the standard, an alarm can be issued through the alarm device. The alarm device includes an audible alarm and a light alarm.

[0071] The utility model also provides an air conditioner, comprising the air conditioner indoor unit as described above.

[0072] In some embodiments of the present invention, the air conditioner can also start an explosion-proof program. For example, when the concentration exceeds the standard, the air conditioner turns on the fan for ventilation and turns off the air conditioner compressor to reduce the risk of explosion caused by the accumulation of flammable refrigerants.

[0073] Embodiment 1:

[0074] The utility model provides an air-conditioning indoor unit, such as Figures 1-6 As shown, it includes an indoor unit body, in which a heat exchanger body 200, a heat exchanger fixing frame 100 and a leakage detection device 300 are arranged. The heat exchanger fixing frame 100 includes a fixing frame body 101. The fixing frame body 101 is provided with a plurality of accommodating grooves 102 for accommodating the bent portion of the heat exchanger body 200. The first end of the heat exchanger body 200 is fixed to the heat exchanger fixing frame 100. A plurality of conducting grooves 103 are provided between the plurality of accommodating grooves 102 for mutual conduction, and the end position of one of the plurality of conducting grooves 103 protrudes from the air inlet end surface of the heat exchanger body 200.

[0075] A nozzle 400 is provided at the end of the conducting groove 103 . The jetting direction of the nozzle 400 is parallel to the air inlet end face of the heat exchanger body 200 . The leakage detection device 300 is provided in the jetting direction of the nozzle 400 .

[0076] Specifically, the accommodating grooves 102 are arranged in two rows, and the two rows of accommodating grooves 102 are arranged in parallel. The conducting grooves 103 include parallel grooves 104 and extension grooves 105. The parallel grooves 104 are arranged between two parallel accommodating grooves 102, and the extension grooves 105 are arranged between two adjacent accommodating grooves 102 in the same row.

[0077] Furthermore, the leakage detection device 300 is arranged on a side away from the heat exchanger fixing frame 100 and adjacent to the inlet and outlet pipe assembly 201 of the heat exchanger body 200 .

[0078] The utility model also provides an air conditioner, comprising the air conditioner indoor unit as described above.

[0079] Throughout this specification, references to terms such as "example," "embodiment," or "some embodiments" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0080] Of course, the invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A heat exchanger fixing bracket, characterized in that: The heat exchanger comprises a fixing frame body, wherein the fixing frame body is provided with a plurality of accommodating grooves for accommodating the bent parts of the heat exchanger body, and a plurality of conducting grooves for mutual conduction are provided between the plurality of accommodating grooves.

2. The heat exchanger fixing bracket according to claim 1, characterized in that: The accommodating grooves are arranged in at least two rows, and the at least two rows of accommodating grooves are arranged in parallel. The conducting grooves include parallel grooves and extension grooves. The parallel grooves are arranged between two parallel accommodating grooves, and the extension grooves are arranged between two adjacent accommodating grooves in the same row.

3. The heat exchanger fixing bracket according to claim 1, characterized in that: The end position of at least one of the plurality of conducting grooves protrudes from the air inlet end surface of the heat exchanger body.

4. The heat exchanger fixing bracket according to claim 3, characterized in that: A nozzle is provided at the end of at least one of the conducting grooves, and the jetting direction of the nozzle is parallel to the air inlet end face of the heat exchanger body.

5. A heat exchanger, characterized in that: It comprises a heat exchanger body and a heat exchanger fixing bracket according to any one of claims 1 to 4, wherein the first end of the heat exchanger body is fixed on the heat exchanger fixing bracket.

6. An air conditioner indoor unit, characterized in that: The heat exchanger comprises an indoor unit body and the heat exchanger according to claim 5, wherein the heat exchanger is arranged in the indoor unit body.

7. The air conditioner indoor unit according to claim 6, characterized in that: A leakage detection device is further provided in the indoor unit body. The leakage detection device is provided on the air inlet side of the heat exchanger body and on a side away from the heat exchanger fixing frame.

8. The air conditioner indoor unit according to claim 7, characterized in that: The indoor unit body is provided with an air inlet on one side of the heat exchanger fixing frame, and an air outlet is provided on one side of the indoor unit body away from the heat exchanger fixing frame.

9. The air conditioner indoor unit according to claim 7, characterized in that: An alarm device is also provided in the indoor unit body, and the alarm device is electrically connected to the leakage detection device.

10. An air conditioner, characterized in that: It comprises an air-conditioning indoor unit as described in any one of claims 6 to 9.

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