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, a detection cavity is arranged in the casing, the casing is provided with a plurality of air inlets arranged at intervals, and the air inlets are communicated with the detection cavity; and the refrigerant detection element is arranged in the detection cavity and is used for detecting whether the detection cavity contains refrigerant gas or not. The refrigerant detection device provided by the utility model is provided with a plurality of air inlets, and external air can enter the detection cavity through any air inlet, so that the risk of failure of the refrigerant detection device is effectively reduced, and the use reliability of the refrigerant detection device is ensured.

Description

Technical Field

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

[0002] Air conditioning and refrigeration systems require refrigerant as a medium for heat exchange. To prevent safety hazards caused by refrigerant leakage, a refrigerant detection device is usually required to detect whether there is refrigerant gas in the air.

[0003] In the related art, the refrigerant detection device is provided with a detection chamber and an air inlet connected to the detection chamber. A refrigerant detection element for detecting the refrigerant is provided in the detection chamber. External gas can enter the detection chamber through the air inlet. The refrigerant detection element senses whether there is refrigerant gas in the detection chamber, thereby determining whether the refrigerant is leaking.

[0004] However, in some application scenarios, the refrigerant detection device is located in a humid environment or an environment with condensed water, and the air inlet is easily blocked by water droplets, and the external gas cannot enter the detection cavity, causing the refrigerant detection device to fail. Utility Model Content

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a refrigerant detection device having multiple air inlets, through which external gas can enter the detection chamber, effectively reducing the risk of failure of the refrigerant detection device and ensuring the reliability of the refrigerant detection device.

[0006] The utility model also provides an air-conditioning indoor unit comprising the refrigerant detection device.

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

[0008] According to an embodiment of the present invention, the refrigerant detection device includes: a casing, a detection cavity is provided in the casing, the casing is provided with a plurality of air inlets arranged at intervals, and the air inlets are connected to the detection cavity; a refrigerant detection element, the refrigerant detection element is provided in the detection cavity, and is used to detect whether the detection cavity contains refrigerant gas.

[0009] According to the refrigerant detection device of the embodiment of the present invention, multiple air inlets are provided, and external gas can enter the detection chamber through any air inlet. That is to say, even if one or more air inlets among the multiple air inlets are blocked, as long as there is still one air inlet that can be ventilated normally, the refrigerant detection device can normally detect whether there is any leakage of the refrigerant gas. Through the above technical solution, the risk of failure of the refrigerant detection device is effectively reduced, and the reliability of the use of the refrigerant detection device is guaranteed.

[0010] In some embodiments, at least some of the plurality of air inlets have openings in different directions.

[0011] In some embodiments, the casing includes a main body, a shielding member and connecting ribs, the side wall of the main body is provided with a through hole, the shielding member is separated from the main body and arranged opposite the through hole, the shielding member is connected to the main body through the connecting ribs, and the shielding member, the main body and the connecting ribs define a plurality of the air inlets.

[0012] In some embodiments, the connecting ribs are multiple and are arranged at intervals along the circumference of the shielding member.

[0013] In some embodiments, a projection of the shielding member on the main body at least completely covers the through hole.

[0014] In some embodiments, the minimum distance H between the shielding member and the main body is in the range of 1.5 mm ≤ H ≤ 3 mm.

[0015] In some embodiments, the connecting rib is connected to the outer peripheral wall of the shielding rib.

[0016] In some embodiments, the refrigerant detection device further includes: a water retaining member, the water retaining member is disposed on the outer surface of the casing, the water retaining member is disposed around the multiple air inlets and the water retaining member is disposed opposite to the multiple air inlets.

[0017] In some embodiments, the housing is further provided with a mounting surface, the mounting surface being suitable for being fixed to an external fixing member, and the air intake area is located on a side of the housing facing away from the mounting surface.

[0018] In some embodiments, the refrigerant detection element is constructed as a thermistor, and the refrigerant detection device also includes a control module, which is communicatively connected to the thermistor and suitable for obtaining the heat dissipation condition of the thermistor to determine whether the air in the detection chamber contains refrigerant gas.

[0019] In some embodiments, the control module includes a circuit board disposed in the housing, a mounting member is provided on the circuit board, the mounting member defines the detection cavity, and the refrigerant detection element is mounted on the circuit board and electrically connected to the circuit board.

[0020] An air-conditioning indoor unit according to an embodiment of the present invention includes the refrigerant detection device described in the above technical solution.

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

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 This is a schematic diagram of a refrigerant detection device according to an embodiment of the present invention. Figure 1 ;

[0025] Figure 2 yes Figure 1 Enlarged view of part A;

[0026] Figure 3 This is a schematic diagram of a refrigerant detection device according to an embodiment of the present invention. Figure 2 ;

[0027] Figure 4 It is an exploded view of a refrigerant detection device according to an embodiment of the present utility model.

[0028] Figure numerals: 100, refrigerant detection device; 1, casing; 11, main body; 111, first cover; 112, second cover; 113, through hole; 12, shielding member; 13, air intake area; 131, air inlet; 14, connecting rib; 15, mounting surface; 2, control module; 3, mounting member; 31, detection chamber; 4, water retaining member; 41, first part; 42, second part; 5, sealing member. DETAILED DESCRIPTION

[0029] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0031] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and 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.

[0032] Reference below Figures 1-4 A refrigerant detection device 100 according to an embodiment of the present invention is described.

[0033] Reference Figure 1 、 Figure 2 and Figure 4 According to an embodiment of the present invention, the refrigerant detection device 100 includes: a housing 1 and a refrigerant detection element. A detection cavity 31 is provided in the housing 1. The housing 1 is provided with an air intake area 13 connected to the detection cavity 31. The refrigerant detection element is provided in the detection cavity 31 for detecting whether the detection cavity 31 contains refrigerant gas.

[0034] External gas can enter the detection chamber 31 through the air inlet area 13. The refrigerant detection element determines whether there is a refrigerant leak by detecting whether there is refrigerant in the detection chamber 31. If a refrigerant leak occurs, 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 a refrigerant leak has occurred.

[0035] In the embodiment of the present invention, the air inlet region 13 includes multiple air inlets 131, each of which is connected to the detection chamber 31. External gas can enter the detection chamber 31 through any of the air inlets 131. If one of the air inlets 131 is blocked, gas can still enter the detection chamber 31 through the other air inlets 131, thereby reducing the risk of failure of the refrigerant detection device 100 and ensuring the reliability of the refrigerant detection device 100.

[0036] According to the refrigerant detection device 100 of the embodiment of the present invention, a plurality of air inlets 131 are provided, and external gas can enter the detection chamber 31 through any air inlet 131. That is to say, even if one or more air inlets 131 among the multiple air inlets 131 are blocked, as long as there is still one air inlet 131 that can be ventilated normally, the refrigerant detection device 100 can normally detect whether there is any leakage of the refrigerant gas. Through the above technical solution, the risk of failure of the refrigerant detection device 100 is effectively reduced, and the reliability of the use of the refrigerant detection device 100 is ensured.

[0037] In some further embodiments, at least some of the air inlets 131 among the plurality of air inlets 131 have openings in different directions.

[0038] In some application scenarios, the refrigerant detection device 100 is located in a humid or condensed environment, and external water may flow to the air inlet area 13 due to flow, splashing or dripping. Under the action of water tension, the water at the air inlet 131 can block the air inlet 131, but in the embodiment of the present invention, at least some of the multiple air inlets 131 have different opening directions, which further reduces the risk of multiple air inlets 131 being blocked by water, effectively reduces the risk of failure of the refrigerant detection device 100, and ensures the reliability of the use of the refrigerant detection device 100.

[0039] Reference Figure 1 、 Figure 2 and Figure 4 In some embodiments, the housing 1 includes a main body 11, a shielding member 12 and a connecting rib 14. The side wall of the main body 11 is provided with a through hole 113. The shielding member 12 is spaced apart from the main body 11 and is arranged opposite to the through hole 113. The shielding member 12 is connected to the main body 11 through the connecting rib 14. The shielding member 12, the main body 11 and the connecting rib 14 define a plurality of air inlets 131.

[0040] In the above technical solution, the through hole 113 on the main body 11 connects the detection cavity 31 inside the casing 1 with the space outside the casing 1; the shielding member 12 is spaced apart from the main body 11, and the through hole 113 is connected to the space outside the casing 1 through the space between the shielding member 12 and the main body 11; the shielding member 12 and the through hole 113 are arranged opposite each other, which prevents external water or debris from directly entering the detection cavity 31 through the through hole 113 and affecting the use of the refrigerant detection device 100, further ensuring the reliability of the use of the refrigerant detection device 100.

[0041] In some specific embodiments, there are multiple connecting ribs 14 , and the multiple connecting ribs 14 are arranged at intervals along the circumference of the shielding member 12 .

[0042] In the above technical solution, the shielding member 12 is connected to the main body 11 via a plurality of connecting ribs 14, ensuring the reliability of the connection between the shielding member 12 and the main body 11. The plurality of connecting ribs 14 are arranged at intervals along the circumference of the shielding member 12, and an air inlet 131 is formed between two connected connecting ribs 14. Through the above technical solution, the plurality of air inlets 131 are distributed at intervals along the circumference of the shielding member 12, and each air inlet 131 has a different orientation, further reducing the risk of the plurality of air inlets 131 being blocked by water, effectively reducing the risk of failure of the refrigerant detection device 100, and ensuring the reliability of the use of the refrigerant detection device 100. In addition, in the embodiment of the present invention, the formation method of the plurality of air inlets 131 is simple, which reduces the cost of the refrigerant detection device 100.

[0043] In some embodiments, the projection of the shielding member 12 on the main body 11 at least completely covers the through hole 113, so that the shielding member 12 can well block the through hole 113, further reducing the risk of external liquids and debris entering the through hole 113, and further ensuring the reliability of the refrigerant detection device 100.

[0044] In some embodiments, the minimum distance H between the shielding member 12 and the main body 11 is in the range of 1.5 mm ≤ H ≤ 3 mm.

[0045] If the minimum spacing H between the shielding member 12 and the main body 11 is less than 1.5 mm, the opening area of ​​the air inlet 131 will be too small, affecting the air intake of the air inlet 131 and the detection accuracy of the refrigerant detection device 100. If the minimum spacing H between the shielding member 12 and the main body 11 is greater than 3 mm, the opening area of ​​the air inlet 131 will be too large, increasing the risk of foreign matter entering the detection cavity 31 through the air inlet 131 and affecting the use of the refrigerant detection device 100. In the embodiment of the present utility model, the minimum spacing H between the shielding member 12 and the main body 11 is limited to 1.5 mm ≤ H ≤ 3 mm, which ensures the air intake efficiency of the air inlet 131 and reduces the risk of foreign matter entering the detection cavity 31 through the air inlet 131, thereby ensuring the reliability of the use of the refrigerant detection device 100.

[0046] In some specific embodiments, the minimum distance H between the shielding member 12 and the main body 11 is any one of 1.5 mm, 1.8 mm, 2.1 mm, 2.5 mm, and 3 mm, or a range of any two thereof.

[0047] In some embodiments, the connecting rib 14 is connected to the outer peripheral wall of the shielding member 12 .

[0048] In the embodiment of the present invention, the structure of the portion of the housing 1 where the air inlet 131 is provided is simplified, the difficulty of making a mold for the housing 1 is reduced, and the cost of the refrigerant detection device 100 is reduced.

[0049] Reference Figure 1 、 Figure 2 and Figure 3 In some embodiments, a water retaining member 4 is provided on the outer surface of the housing 1 . The water retaining member 4 is provided around the multiple air inlets 131 , and the water retaining member 4 is provided opposite to the multiple air inlets 131 .

[0050] When external water flows toward or splashes toward the air inlet 131 , the water barrier 4 can block the water flowing toward the multiple air inlets 131 , reducing the possibility of water blocking the air inlet 131 , 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 .

[0051] Furthermore, the water blocking member 4 is arranged around the multiple air inlets 131 , so that water around the multiple air inlets 131 is difficult to approach the air inlets 131 , further reducing the risk of water blocking the air inlets 131 .

[0052] In addition, the water blocking member 4 is arranged opposite to the multiple air inlets 131, so that the water blocking member 4 can effectively block the water flowing into the air inlets 131, but will not affect the gas entering the air inlets 131, effectively improving the reliability of the refrigerant detection device 100.

[0053] In an embodiment of the present invention, a water stop 4 is provided on the casing 1, which can block water flowing toward the air inlet 131, reducing the situation where water blocks the air inlet 131, 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.

[0054] In some embodiments, the extended height of the water blocking member 4 exceeds the opening height of the air inlet 131 .

[0055] Through the above technical solution, the water blocking member 4 can well shield the air inlet 131 , further reducing the risk of water blocking the air inlet 131 .

[0056] In some embodiments, the water retaining member 4 is arranged around the air intake area 13, and the water retaining 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 smaller than the second distance.

[0057] In the above technical solution, the water retaining member 4 is arranged around the air intake area 13, so that the water on the side of the air intake area 13 is difficult to approach the air intake area 13, and the water retaining 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 retaining member 4 and the air intake area 13 is increased. This design ensures that external gas can smoothly enter the air intake area 13, and there will be no situation where the distance between the water retaining 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 failure of the refrigerant detection device 100 and improving the reliability of the use of the refrigerant detection device 100.

[0058] In some embodiments, the water stop 4 is arranged adjacent to the outer edge of the casing 1, further increasing the distance between the water stop 4 and the air intake area 13, and increasing the space for gas flow between the water stop 4 and the air intake area 13, so that the gas can smoothly enter the detection cavity 31, further reducing the risk of failure of the refrigerant detection device 100, and improving the reliability of the use of the refrigerant detection device 100.

[0059] In some embodiments, at least a surface of the water retaining member 4 facing away from the air inlet area 13 is provided with a water guiding surface, and the water guiding surface extends obliquely downward toward the outer periphery of the casing 1 .

[0060] When external water flows toward or splashes toward the air intake area 13 , the water retaining member 4 can block the water flowing toward the air intake area 13 and allow the water to flow under the guidance of the water guide surface, further reducing the risk of water blocking the air intake area 13 .

[0061] In some embodiments, the casing 1 is further provided with a mounting surface 15, which is suitable for being fixed to an external fixing member. The air intake area 13 is located on the side of the casing 1 away from the mounting surface 15, further improving the convenience of external gas entering the air inlet 131, which is beneficial to improving the reliability of the refrigerant detection device 100.

[0062] In some embodiments, the water retaining member 4 is configured as a closed-loop annular rib.

[0063] In the embodiment of the present invention, the water retaining member 4 is not provided with a notch, thereby avoiding the risk of water entering the inner side of the water retaining member 4 through the notch, further improving the water retaining effect of the water retaining member 4. In addition, the structure of the water retaining member 4 is simple, which reduces the cost of the refrigerant detection device 100.

[0064] Reference Figure 1 、 Figure 2 and Figure 3 In some specific embodiments, the water retaining member 4 is constructed 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 in the rectangular rib near the first part 41.

[0065] It should be understood that the water retaining member 4 can also be a closed-loop circular, polygonal or other shaped rib, and the present invention is not limited to this.

[0066] In some embodiments, the water retaining member 4 and the casing 1 are constructed as an integrally formed part, which improves the reliability of the connection between the water retaining member 4 and the casing 1 and reduces the production cost of the refrigerant detection device 100.

[0067] Reference Figure 1 、 Figure 2 and Figure 4 In some embodiments, the refrigerant detection element is constructed as a thermistor. The refrigerant detection device 100 further includes a control module 2, which is communicatively connected to the thermistor. The control module 2 is suitable for obtaining the heat dissipation condition of the thermistor to determine whether the air in the detection chamber 31 contains refrigerant gas.

[0068] Because the thermal conductivity of the refrigerant gas is different from that of the air, when there is no refrigerant gas in the detection chamber 31, the thermistor dissipates heat normally, and the control module 2 determines that the refrigerant gas has not leaked; however, when there is refrigerant gas in the detection chamber 31, the control module 2 can detect abnormal heat dissipation of the thermistor, thereby determining that the refrigerant gas has leaked.

[0069] In other embodiments, the refrigerant detection element includes a transmitter and a receiver, the transmitter and the receiver being spaced apart, the transmitter being adapted to emit light of a specific wavelength, and the receiver being adapted to receive the light emitted by the transmitter. The refrigerant detection device 100 also includes a control module 2, with both the transmitter and the receiver being communicatively connected to the control module 2. The control module 2 is adapted to obtain the operating status of the transmitter and the receiver to determine whether the air in the detection chamber 31 contains refrigerant gas.

[0070] When there is no refrigerant gas in the detection cavity 31, the receiver receives the light emitted by the transmitter normally, and the control module 2 determines that the refrigerant gas has not leaked; however, when there is refrigerant gas in the detection cavity 31, the refrigerant gas can absorb light of a specific wavelength, causing the receiver to receive an abnormal signal, thereby determining that the refrigerant gas has leaked.

[0071] In some other embodiments, the refrigerant detection element includes a gas-sensitive layer, and the refrigerant detection device 100 also includes a control module 2. The refrigerant detection element is communicatively connected to the control module 2. The control module 2 is suitable for obtaining the working status of the refrigerant detection element to determine whether the air in the detection chamber 31 contains refrigerant gas.

[0072] When there is no refrigerant gas in the detection cavity 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 cavity 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 the refrigerant gas is leaking.

[0073] It should be understood that the refrigerant detection element may also have other structures, and may also detect whether the detection cavity 31 contains refrigerant gas in other ways, and the present invention is not limited to this.

[0074] Reference Figure 4 In some embodiments, the control module 2 includes a circuit board disposed in the housing 1, a mounting member 3 is provided on the circuit board, the mounting member 3 defines a detection cavity 31, and a refrigerant detection element is mounted on the circuit board and electrically connected to the circuit board.

[0075] In the embodiment of the present invention, the control module 2 has a simple structure, which reduces the cost of the refrigerant detection device 100 .

[0076] Reference Figure 1 and Figure 4 In some specific embodiments, the main body 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.

[0077] A mounting surface 15 is provided on a side of the first cover 111 facing away from the second cover 112 , and the aforementioned air intake area 13 is provided on a side of the second cover 112 facing away from the first cover 111 .

[0078] 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 .

[0079] The indoor unit of an air conditioner according to an embodiment of the present invention includes the refrigerant detection device 100 in the above technical solution.

[0080] According to the air-conditioning indoor unit of the embodiment of the present invention, the refrigerant detection device 100 is provided with a plurality of air inlets 131, and external gas can enter the detection cavity 31 through any air inlet 131, which effectively reduces the risk of failure of the refrigerant detection device 100, ensures the reliability of the use of the refrigerant detection device 100, and improves the safety of the air-conditioning indoor unit.

[0081] The air conditioner according to the 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.

[0082] According to the air conditioner of the embodiment of the present invention, the refrigerant detection device 100 is provided with multiple air inlets 131, and external gas can enter the detection cavity 31 through any air inlet 131, which effectively reduces the risk of failure of the refrigerant detection device 100, ensures the reliability of the use of the refrigerant detection device 100, and improves the safety of the air conditioner.

[0083] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means 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, the illustrative use of the above terms does 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.

[0084] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A refrigerant detection device, characterized in that: include: A housing having a detection cavity disposed therein, the housing having a plurality of air inlets spaced apart from each other, each of the air inlets being in communication with the detection cavity; A refrigerant detection element is provided in the detection cavity and is used to detect whether the detection cavity contains refrigerant gas.

2. The refrigerant detection device according to claim 1, characterized in that: At least some of the plurality of air inlets have openings in different directions.

3. The refrigerant detection device according to claim 1, characterized in that: The casing includes a main body, a shielding member and connecting ribs. The side wall of the main body is provided with a through hole. The shielding member is spaced from the main body and arranged opposite to the through hole. The shielding member is connected to the main body through the connecting ribs. The shielding member, the main body and the connecting ribs define a plurality of air inlets.

4. The refrigerant detection device according to claim 3, characterized in that: There are multiple connecting ribs, which are spaced apart along the circumference of the shielding member.

5. The refrigerant detection device according to claim 3, characterized in that: The projection of the shielding member on the main body at least completely covers the through hole.

6. The refrigerant detection device according to claim 3, characterized in that: The minimum distance H between the shielding member and the main body is within the range of 1.5 mm ≤ H ≤ 3 mm.

7. The refrigerant detection device according to claim 3, characterized in that: The connecting rib is connected to the outer peripheral wall of the shielding member.

8. The refrigerant detection device according to claim 1, characterized in that: Also includes: A water retaining member is provided on the outer surface of the casing, the water retaining member is provided around the plurality of air inlets and the water retaining member is provided opposite to the plurality of air inlets.

9. The refrigerant detection device according to claim 1, characterized in that: The housing is further provided with a mounting surface, which is suitable for being fixed to an external fixing member, and the air inlet is located on a side of the housing facing away from the mounting surface.

10. The refrigerant detection device according to any one of claims 1 to 9, 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 chamber contains refrigerant gas.

11. The refrigerant detection device according to claim 10, characterized in that: The control module includes a circuit board disposed in the housing. A mounting member is provided on the circuit board. The mounting member defines the detection cavity. The refrigerant detection element is mounted on the circuit board and electrically connected to the circuit board.

12. An air conditioner indoor unit, characterized in that: include: A refrigerant detection device according to any one of claims 1 to 11.

13. An air conditioner, characterized in that: include: The air conditioning indoor unit according to claim 12; Or, a refrigerant detection device according to any one of claims 1-11.

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