Refrigerant detection device, air conditioner indoor unit and air conditioner

Abstract

The utility model discloses a refrigerant detection device, an air conditioner indoor unit and an air conditioner, the refrigerant detection device comprises a casing, the casing is internally provided with a detection cavity, and the casing is provided with an air inlet area communicated with the detection cavity; the refrigerant detection element is arranged in the detection cavity and is used for detecting whether the detection cavity contains refrigerant gas or not; and the water retaining piece is arranged on the outer surface of the machine shell, the water retaining piece is arranged around the air inlet area, and at least one part of the water retaining piece is arranged right opposite to the air inlet area. According to the refrigerant detection device provided by the utility model, the water retaining piece is arranged on the shell and can block water flowing to the air inlet area, so that the condition that the air inlet area is blocked by water is reduced, the risk of failure of the refrigerant detection device is reduced, and the use reliability of the refrigerant detection device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a refrigerant detection device, an indoor unit of an air conditioner and an air conditioner. Background Art

[0002] The air-conditioning refrigeration system needs to use refrigerant as a medium for heat exchange. To prevent safety hazards caused by refrigerant leakage, a refrigerant detection device is usually used to detect whether the air contains refrigerant gas.

[0003] In the related art, the refrigerant detection device is provided with a detection cavity and an air inlet communicated with the detection cavity. A refrigerant detection element for detecting the refrigerant is arranged in the detection cavity. External gas can enter the detection cavity through the air inlet, and the refrigerant detection element senses whether the detection cavity contains refrigerant gas, so as to judge whether the refrigerant leaks.

[0004] However, in some application scenarios, the refrigerant detection device is located in a humid or condensate water environment. External water may be located at the air inlet due to reasons such as flowing, splashing or dripping. Under the action of the surface tension of the water, the air inlet is blocked by the water, resulting in that the external gas cannot enter the detection cavity, and the refrigerant detection device fails. Content of the Utility Model

[0005] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a refrigerant detection device, in which a water blocking member is arranged on the housing. The water blocking member can block the water flowing towards the air inlet area, reduce the situation of water blocking the air inlet area, thereby reducing the risk of failure of the refrigerant detection device and improving the reliability of the refrigerant detection device in use.

[0006] The utility model also provides an indoor unit of an air conditioner including the above refrigerant detection device.

[0007] The utility model also provides an air conditioner including the above refrigerant detection device.

[0008] According to an embodiment of the utility model, the refrigerant detection device includes: a housing, a detection cavity is arranged inside the housing, and the housing is provided with an air inlet area communicated with the detection cavity; a refrigerant detection element, the refrigerant detection element is arranged in the detection cavity and used for detecting whether the detection cavity contains refrigerant gas; a water blocking member, the water blocking member is arranged on the outer surface of the housing, the water blocking member surrounds the air inlet area, and at least a part of the water blocking member is arranged opposite to the air inlet area.

[0009] According to the refrigerant detection device of the embodiment of the present utility model, a water blocking member is provided on the casing. The water blocking member can block the water flowing towards the intake area, reducing the situation where the intake area is blocked by water, thereby reducing the risk of failure of the refrigerant detection device and improving the reliability of the use of the refrigerant detection device.

[0010] In some embodiments, the extending height of the water blocking member exceeds the opening height of the intake area.

[0011] In some embodiments, the water blocking member includes a first part and a second part. The minimum distance between the first part and the intake area is a first distance, and the minimum distance between the second part and the intake area is a second distance. The first distance is less than the second distance.

[0012] In some embodiments, the water blocking member is disposed adjacent to the outer peripheral edge of the casing.

[0013] In some embodiments, at least the surface of the water blocking member facing away from the intake area is provided with a water guiding surface, and the water guiding surface extends obliquely downward in the direction towards the outer peripheral edge of the casing.

[0014] In some embodiments, the casing includes a main body portion and a protruding portion. The protruding portion protrudes from the outer surface of the main body portion. The intake area is disposed on the outer peripheral wall of the protruding portion, and the water blocking member is connected to the main body portion and disposed around the protruding portion.

[0015] In some embodiments, both the water blocking member and the protruding portion extend in a direction away from the main body portion, and the extending height of the water blocking member is greater than the extending height of the protruding portion.

[0016] In some embodiments, the intake area includes a plurality of intake holes spaced circumferentially along the outer periphery of the protruding portion.

[0017] In some embodiments, the water blocking member is configured as a closed-loop annular rib.

[0018] In some embodiments, the water blocking member and the casing are configured as an integrally formed part.

[0019] In some embodiments, the refrigerant detection element is configured as a thermal sensitive element. The refrigerant detection device further includes a control module, and the control module is communicatively connected to the thermal sensitive element. The control module is adapted to obtain the heat dissipation condition of the thermal sensitive element to determine whether the air in the detection chamber contains refrigerant gas.

[0020] In some embodiments, the control module includes a circuit board disposed inside the casing. An installation member is provided on the circuit board, and the installation member defines the detection chamber. The refrigerant detection element is installed on the circuit board and electrically connected to the circuit board.

[0021] An indoor unit of an air conditioner according to an embodiment of the present utility model includes the refrigerant detection device described in the above technical solution.

[0022] An air conditioner according to an embodiment of the present utility model includes the indoor unit of an air conditioner described in the above technical solution, or includes the refrigerant detection device described in the above technical solution.

[0023] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0025] Figure 1 is a schematic diagram of a refrigerant detection device according to an embodiment of the present utility model Figure 1 ;

[0026] Figure 2 is Figure 1 an enlarged view of part A in

[0027] Figure 3 is a schematic diagram of a refrigerant detection device according to an embodiment of the present utility model Figure 2 ;

[0028] Figure 4 is an exploded view of a refrigerant detection device according to an embodiment of the present utility model.

[0029] Reference numerals: 100, refrigerant detection device; 1, housing; 11, main body part; 111, first cover; 112, second cover; 12, protruding part; 13, intake area; 131, intake hole; 2, control module; 3, mounting member; 31, detection cavity; 4, water blocking member; 41, first part; 42, second part; 5, sealing member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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, it should not be construed as a limitation to the present utility model. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0032] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0033] The following refers to Figures 1 - 4 Describe the refrigerant detection device 100 according to an embodiment of the present utility model.

[0034] Refer to Figure 1 、 Figure 2 And Figure 4 According to an embodiment of the present utility model, the refrigerant detection device 100 includes: a housing 1 and a refrigerant detection element. A detection chamber 31 is provided inside the housing 1. The housing 1 is provided with an air inlet area 13 communicating with the detection chamber 31. The refrigerant detection element is disposed in the detection chamber 31 and is used to detect whether there is refrigerant gas in the detection chamber 31.

[0035] External gas can enter the detection chamber 31 through the air inlet area 13. The refrigerant detection element determines whether there is refrigerant leakage by detecting whether there is refrigerant in the detection chamber 31. If the refrigerant leaks, the refrigerant gas diffuses in the environment where the refrigerant detection device 100 is located. The diffused refrigerant gas enters the detection chamber 31 through the air inlet area 13, and the refrigerant detection element can detect the refrigerant gas, thereby determining that the refrigerant has leaked.

[0036] In the refrigerant detection device 100 according to the embodiment of the present utility model, a water blocking member 4 is provided on the outer surface of the casing 1. The water blocking member 4 is arranged around the air intake area 13, and at least a part of the water blocking member 4 is arranged opposite to the air intake area 13.

[0037] When water in the outside world flows towards or splashes onto the air intake area 13, the water blocking member 4 can block the water flowing towards the air intake area 13, reducing the situation where the air intake area 13 is blocked by water, thereby reducing the risk of failure of the refrigerant detection device 100 and improving the reliability of the use of the refrigerant detection device 100.

[0038] Moreover, the water blocking member 4 is arranged around the air intake area 13, making it difficult for the water on the periphery of the air intake area 13 to approach the air intake area 13, further reducing the risk of the air intake area 13 being blocked by water.

[0039] In addition, at least a part of the water blocking member 4 is arranged opposite to the air intake area 13, enabling the water blocking member 4 to effectively block the water flowing towards the air intake area 13 without affecting the entry of gas into the air intake area 13, effectively improving the reliability of the use of the refrigerant detection device 100.

[0040] In the refrigerant detection device 100 according to the embodiment of the present utility model, a water blocking member 4 is provided on the casing 1. The water blocking member 4 can block the water flowing towards the air intake area 13, reducing the situation where the air intake area 13 is blocked by water, thereby reducing the risk of failure of the refrigerant detection device 100 and improving the reliability of the use of the refrigerant detection device 100.

[0041] In some embodiments, the extended height of the water blocking member 4 exceeds the opening height of the air intake area 13. It should be noted that the opening height of the air intake area 13 mentioned in the embodiment of the present utility model refers to the opening height of the air intake area 13 in the extending direction of the water blocking member 4.

[0042] Through the above technical solution, the water blocking member 4 can well block the air intake area 13, further reducing the risk of the air intake area 13 being blocked by water.

[0043] In some embodiments, the water blocking member 4 is arranged around the air intake area 13. The water blocking member 4 includes a first part 41 and a second part 42. The minimum distance between the first part 41 and the air intake area 13 is a first distance, and the minimum distance between the second part 42 and the air intake area 13 is a second distance. The first distance is less than the second distance.

[0044] In the above technical solution, the water blocking member 4 is arranged around the air intake area 13, making it difficult for the water on the peripheral side of the air intake area 13 to approach the air intake area 13. And the water blocking member 4 includes a first part 41 relatively close to the air intake area 13 and a second part 42 relatively far from the air intake area 13. By increasing the distance between the second part 42 and the air intake area 13, the space for gas flow between the water blocking member 4 and the air intake area 13 is increased. Through this design, it is ensured that the outside gas can smoothly enter the air intake area 13, and there will be no situation where the distance between the water blocking member 4 and the air intake area 13 is too close to affect the gas entering the air intake area 13, further reducing the risk of the refrigerant detection device 100 failing and improving the reliability of the refrigerant detection device 100 in use.

[0045] In some embodiments, the water blocking member 4 is arranged adjacent to the outer peripheral edge of the housing 1, further increasing the distance between the water blocking member 4 and the air intake area 13 and increasing the space for gas flow between the water blocking member 4 and the air intake area 13, so that the gas can smoothly enter the detection cavity 31, further reducing the risk of the refrigerant detection device 100 failing and improving the reliability of the refrigerant detection device 100 in use.

[0046] In some embodiments, at least the surface of the water blocking member 4 facing away from the air intake area 13 is provided with a water guiding surface, and the water guiding surface extends obliquely downward in the direction of the outer peripheral edge of the housing 1.

[0047] When the outside water flows towards or splashes to the air intake area 13, the water blocking member 4 can block the water flowing towards the air intake area 13 and flow under the guidance of the water guiding surface, further reducing the risk of water blocking the air intake area 13.

[0048] Refer to Figure 1 、 Figure 2 and Figure 4 In some embodiments, the housing 1 includes a main body part 11 and a convex part 12. The convex part 12 protrudes from the outer surface of the main body part 11. The air intake area 13 is arranged on the outer peripheral wall of the convex part 12, and the water blocking member 4 is connected to the main body part 11 and arranged around the convex part 12.

[0049] In the embodiment of the present utility model, the air intake area 13 is arranged on the outer peripheral wall of the convex part 12, making it easier for the outside gas to enter the detection cavity 31. And compared with the scheme where the air intake area 13 is arranged at the end of the convex part 12 or on the surface of the main body part 11, arranging the air intake area 13 on the outer peripheral wall of the convex part 12 further reduces the risk of the dripping or splashing water contacting the air intake area 13 and reduces the risk of the refrigerant detection device 100 failing.

[0050] In some specific embodiments, both the water baffle 4 and the protrusion 12 extend away from the main body 11, and the extension height of the water baffle 4 is greater than that of the protrusion 12, further improving the water blocking effect of the water baffle 4.

[0051] In some embodiments, the air intake area 13 includes a plurality of air intake holes 131 spaced circumferentially along the protrusion 12, and the plurality of air intake holes 131 are all in communication with the detection chamber 31. External gas can enter the detection chamber 31 through any one of the air intake holes 131. If one of the air intake holes 131 is blocked, the gas can still enter the detection chamber 31 through other air intake holes 131, reducing the risk of failure of the refrigerant detection device 100 and ensuring the reliability of the use of the refrigerant detection device 100.

[0052] In some embodiments, the water baffle 4 is configured as a closed-loop annular rib.

[0053] In the embodiment of the present utility model, no notch is provided on the water baffle 4, avoiding the risk of water entering the inner side of the water baffle 4 from the notch, and further improving the water blocking effect of the water baffle 4. And in the embodiment of the present utility model, the structure of the water baffle 4 is simple, reducing the cost of the refrigerant detection device 100.

[0054] Refer to Figure 1 、 Figure 2 and Figure 3 , in some specific embodiments, the water baffle 4 is configured as a closed-loop rectangular rib, one side of the rectangular rib forms the above-mentioned first part 41, the side of the rectangular rib opposite to the first part 41 forms the above-mentioned second part 42, and the air intake area 13 is arranged inside the rectangular rib near the first part 41.

[0055] It should be understood that the water baffle 4 can also be a closed-loop circular, polygonal or other shaped rib, and the present utility model does not limit this.

[0056] In some embodiments, the water baffle 4 and the housing 1 are configured as an integrally formed part, improving the connection reliability between the water baffle 4 and the housing 1 and also reducing the production cost of the refrigerant detection device 100.

[0057] In some embodiments, the refrigerant detection element is configured as a thermal element, and the refrigerant detection device 100 further includes a control module 2, which is communicatively connected to the thermal element, and the control module 2 is adapted to obtain the heat dissipation condition of the thermal element to determine whether the air in the detection chamber 31 contains refrigerant gas.

[0058] Because the thermal conductivity of the refrigerant gas is different from that of air, when there is no refrigerant gas in the detection chamber 31, the thermal-sensitive element dissipates heat normally, and the control module 2 determines that there is no refrigerant gas leakage; however, when there is refrigerant gas in the detection chamber 31, the control module 2 can detect that the heat dissipation of the thermal-sensitive element is abnormal, thereby determining that there is refrigerant gas leakage.

[0059] In some other embodiments, the refrigerant detection element includes a transmitter and a receiver. The transmitter and the receiver are arranged at intervals. The transmitter is adapted to emit light of a specific wavelength, and the receiver is adapted to receive the light emitted by the transmitter. The refrigerant detection device 100 further includes a control module 2. Both the transmitter and the receiver are communicatively connected to the control module 2. The control module 2 is adapted to obtain the working states of the transmitter and the receiver to determine whether there is refrigerant gas in the air of the detection chamber 31.

[0060] When there is no refrigerant gas in the detection chamber 31, the receiver normally receives the light emitted by the transmitter, and the control module 2 determines that there is no refrigerant gas leakage; however, when there is refrigerant gas in the detection chamber 31, the refrigerant gas can absorb the light of a specific wavelength, resulting in abnormal signal reception by the receiver, thereby determining that there is refrigerant gas leakage.

[0061] In still some other embodiments, the refrigerant detection element includes a gas-sensitive layer. The refrigerant detection device 100 further includes a control module 2. The refrigerant detection element is communicatively connected to the control module 2. The control module 2 is adapted to obtain the working state of the refrigerant detection element to determine whether there is refrigerant gas in the air of the detection chamber 31.

[0062] When there is no refrigerant gas in the detection chamber 31, the refrigerant detection element works normally, and the control module 2 determines that there is no refrigerant gas leakage; however, when there is refrigerant gas in the detection chamber 31, the gas-sensitive layer is affected by the refrigerant gas and changes its own conductivity, causing the electrical signal of the refrigerant detection element to change, thereby determining that there is refrigerant gas leakage.

[0063] It should be understood that the refrigerant detection element can also be of other structures, and it can also detect whether there is refrigerant gas in the detection chamber 31 by other means. The present invention does not limit this.

[0064] Refer to Figure 4 , in some embodiments, the control module 2 includes a circuit board disposed in the housing 1. An installation member 3 is disposed on the circuit board. The installation member 3 defines the detection chamber 31. The refrigerant detection element is installed on the circuit board and electrically connected to the circuit board.

[0065] In the embodiment of the present invention, the structure of the control module 2 is simple, reducing the cost of the refrigerant detection device 100.

[0066] In some specific embodiments, the main body 11 includes a first cover 111 and a second cover 112. The first cover 111 and the second cover 112 are detachably connected. When the first cover 111 and the second cover 112 are connected, an installation cavity for the control module 2 is defined between the first cover 111 and the second cover 112.

[0067] On the side of the second cover 112 facing away from the first cover 111, the above-mentioned air intake area 13 and the water blocking member 4 are provided.

[0068] A sealing member 5 is provided between the first cover 111 and the second cover 112 to prevent external water from entering the installation cavity and affecting the operation of the control module 2, thereby extending the service life of the refrigerant detection device 100.

[0069] The following refers to the attached Figures 1 - 4 to describe a specific embodiment of the present invention.

[0070] The refrigerant detection device 100 according to an embodiment of the present invention includes: a housing 1 and a refrigerant detection element. A detection cavity 31 is provided inside the housing 1. The housing 1 is provided with an air intake area 13 communicating with the detection cavity 31. The refrigerant detection element is arranged in the detection cavity 31 and is used to detect whether there is refrigerant gas in the detection cavity 31.

[0071] A water blocking member 4 is provided on the outer surface of the housing 1. The water blocking member 4 is arranged around the air intake area 13, and at least a part of the water blocking member 4 is arranged opposite to the air intake area 13.

[0072] The extended height of the water blocking member 4 exceeds the opening height of the air intake area 13.

[0073] The water blocking member 4 is arranged around the air intake area 13. The water blocking member 4 includes a first part 41 and a second part 42. The minimum distance between the first part 41 and the air intake area 13 is a first distance, and the minimum distance between the second part 42 and the air intake area 13 is a second distance. The first distance is less than the second distance. The water blocking member 4 is arranged adjacent to the outer peripheral edge of the housing 1.

[0074] The housing 1 includes a main body 11 and a protruding part 12. The protruding part 12 protrudes from the outer surface of the main body 11. The air intake area 13 is arranged on the outer peripheral wall of the protruding part 12. The water blocking member 4 is connected to the main body 11 and is arranged around the protruding part 12.

[0075] Both the water blocking member 4 and the protruding part 12 extend in a direction away from the main body 11, and the extended height of the water blocking member 4 is greater than the extended height of the protruding part 12.

[0076] The air intake area 13 includes a plurality of air intake holes 131 arranged at intervals along the circumferential direction of the protruding part 12, and the plurality of air intake holes 131 are all communicated with the detection cavity 31.

[0077] The water baffle 4 is configured as a closed-loop annular rib.

[0078] The water baffle 4 and the housing 1 are configured as an integrally formed part.

[0079] The refrigerant detection element is configured as a thermosensitive element. The refrigerant detection device 100 further includes a control module 2. The control module 2 is communicatively connected to the thermosensitive element. The control module 2 is adapted to obtain the heat dissipation condition of the thermosensitive element to determine whether the air in the detection chamber 31 contains refrigerant gas.

[0080] The main body portion 11 includes a first cover body 111 and a second cover body 112. The first cover body 111 and the second cover body 112 are detachably connected. When the first cover body 111 and the second cover body 112 are connected, an installation cavity for the control module 2 is defined between the first cover body 111 and the second cover body 112.

[0081] The first cover body 111 is adapted to be fixed to an external fixing member. The intake area 13 and the water baffle 4 as described above are provided on a side of the second cover body 112 facing away from the first cover body 111.

[0082] A sealing member 5 is provided between the first cover body 111 and the second cover body 112 to prevent external water from entering the installation cavity.

[0083] The control module 2 includes a circuit board disposed in the housing 1. An installation member 3 is provided on the circuit board. The installation member 3 defines a detection chamber 31. The refrigerant detection element is installed on the circuit board and electrically connected to the circuit board.

[0084] The air conditioner indoor unit according to an embodiment of the present invention includes the refrigerant detection device 100 in the above technical solution.

[0085] In the air conditioner indoor unit according to an embodiment of the present invention, a water baffle 4 is provided on the housing 1 of the refrigerant detection device 100. The water baffle 4 can block the water flowing towards the intake area 13, reducing the situation of water blocking the intake area 13, thereby reducing the risk of failure of the refrigerant detection device 100, improving the reliability of the use of the refrigerant detection device 100, and improving the safety of the air conditioner indoor unit.

[0086] The air conditioner according to an embodiment of the present invention includes the air conditioner indoor unit in the above technical solution, or includes the refrigerant detection device 100 in the above technical solution.

[0087] In the air conditioner according to an embodiment of the present invention, a water baffle 4 is provided on the housing 1 of the refrigerant detection device 100. The water baffle 4 can block the water flowing towards the intake area 13, reducing the situation of water blocking the intake area 13, thereby reducing the risk of failure of the refrigerant detection device 100, improving the reliability of the use of the refrigerant detection device 100, and improving the safety of the air conditioner.

[0088] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0089] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A refrigerant detection device, characterized in that: include: A casing, wherein a detection cavity is disposed in the casing, and the casing is provided with an air intake area communicated with the detection cavity; A refrigerant detection element, the refrigerant detection element is arranged in the detection cavity and is used to detect whether the detection cavity contains refrigerant gas; A water retaining member is disposed on the outer surface of the casing, the water retaining member is disposed around the air intake area, and at least a portion of the water retaining member is disposed opposite to the air intake area.

2. The refrigerant detection device according to claim 1, characterized in that: The extending height of the water blocking member exceeds the opening height of the air intake area.

3. The refrigerant detection device according to claim 1, characterized in that: The water retaining member includes a first part and a second part, the minimum distance between the first part and the air intake area is a first distance, the minimum distance between the second part and the air intake area is a second distance, and the first distance is smaller than the second distance.

4. The refrigerant detection device according to claim 1, characterized in that: The water blocking member is disposed adjacent to the outer periphery of the casing.

5. The refrigerant detection device according to claim 1, characterized in that: At least a surface of the water retaining member facing away from the air inlet area is provided with a water guiding surface, and the water guiding surface extends obliquely downward toward the direction of the outer periphery of the casing.

6. The refrigerant detection device according to claim 1, characterized in that: The housing includes a main body and a raised portion, wherein the raised portion protrudes from an outer surface of the main body, the air intake area is arranged on an outer peripheral wall of the raised portion, and the water retaining member is connected to the main body and arranged around the raised portion.

7. The refrigerant detection device according to claim 6, characterized in that: The water retaining member and the protruding portion both extend in a direction away from the main body, and an extending height of the water retaining member is greater than an extending height of the protruding portion.

8. The refrigerant detection device according to claim 6, characterized in that: The air intake area includes a plurality of air intake holes spaced apart from each other along the circumference of the protrusion.

9. The refrigerant detection device according to claim 1, characterized in that: The water retaining member is configured as a closed-loop annular rib.

10. The refrigerant detection device according to claim 1, characterized in that: The water retaining member and the housing are formed as an integral part.

11. The refrigerant detection device according to any one of claims 1 to 10, characterized in that: The refrigerant detection element is constructed as a thermistor. The refrigerant detection device also includes a control module, which is communicatively connected to the thermistor. The control module is suitable for obtaining the heat dissipation condition of the thermistor to determine whether the air in the detection cavity contains refrigerant gas.

12. The refrigerant detection device according to claim 11, characterized in that: The control module includes a circuit board arranged in the housing, a mounting member is arranged on the circuit board, the mounting member defines the detection cavity, and the refrigerant detection element is installed on the circuit board and electrically connected to the circuit board.

13. An air conditioner indoor unit, characterized in that: include: A refrigerant detection device according to any one of claims 1 to 12.

14. An air conditioner, characterized in that: include: The air conditioning indoor unit according to claim 13; Or, a refrigerant detection device according to any one of claims 1-12.

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