Ceiling unit and air conditioner

Abstract

The embodiment of the utility model provides a ceiling unit and an air conditioner, and the ceiling unit comprises a shell, a heat exchanger, a fan and a refrigerant detection device; the heat exchanger comprises a main body arranged in the shell and a gas-liquid pipeline communicated with the main body, the main body defines a first cavity in the shell, the main body and the shell jointly define a second cavity, the second cavity is separated from the first cavity through the main body, and the gas-liquid pipeline is communicated with the main body. At least the communication part of the gas-liquid pipeline and the main body is positioned in the second cavity; the fan is arranged in the first cavity; the refrigerant detection device is arranged in the second cavity; or, the refrigerant detection device is arranged in the first cavity and located between the second cavity and the fan. According to the ceiling machine, the detection timeliness of the refrigerant detection device can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioners, and particularly to a ceiling-mounted air conditioner and an air conditioner. Background Art

[0002] In order to detect the refrigerant leakage inside the ceiling-mounted air conditioner, the ceiling-mounted air conditioner generally is equipped with a refrigerant detection device, which determines whether the refrigerant leaks by detecting the diffused refrigerant gas molecules.

[0003] However, in the related art, some ceiling-mounted air conditioners set the refrigerant detection device outside the housing of the ceiling-mounted air conditioner. When the refrigerant leaks, it is difficult for the refrigerant detection device to detect the leaked refrigerant in time. There are also some ceiling-mounted air conditioners that set the refrigerant detection device inside the housing of the ceiling-mounted air conditioner. However, the installation position of the refrigerant detection device is not very reasonable, and the refrigerant detection device still has difficulty in detecting the leaked refrigerant in time. Therefore, the refrigerant detection device in the related art has the problem of delayed detection results. Summary of the Utility Model

[0004] In view of this, the embodiments of the present application are expected to provide a ceiling-mounted air conditioner and an air conditioner that can improve the timeliness of the refrigerant detection device.

[0005] To achieve the above object, an embodiment of the present application provides a ceiling-mounted air conditioner, including:

[0006] A housing;

[0007] A heat exchanger, the heat exchanger includes a main body disposed inside the housing and a gas-liquid pipeline communicating with the main body. The main body encloses a first cavity inside the housing, and the main body and the housing jointly enclose a second cavity. The second cavity is separated from the first cavity by the main body, and at least the connection part of the gas-liquid pipeline with the main body is located in the second cavity;

[0008] A blower, the blower is disposed in the first cavity;

[0009] A refrigerant detection device, the refrigerant detection device is disposed in the second cavity; or, the refrigerant detection device is disposed in the first cavity and is located between the second cavity and the blower.

[0010] In an implementation manner, the main body includes a connecting plate and a heat exchange structure communicating with the gas-liquid pipeline. The connecting plate is respectively connected to the opposite ends of the heat exchange structure. The heat exchange structure and the connecting plate jointly enclose the first cavity, and the heat exchange structure, the connecting plate and the housing jointly enclose and form the second cavity.

[0011] In one embodiment, the refrigerant detection device is disposed in the second cavity and located between the connection plate and the gas-liquid pipeline.

[0012] In one embodiment, the refrigerant detection device is disposed in the first cavity and located between the connection plate and the blower.

[0013] In one embodiment, the refrigerant detection device is disposed on the connection plate; and / or,

[0014] The installation position of the refrigerant detection device is close to the connection point between the gas-liquid pipeline and the main body.

[0015] In one embodiment, the connection plate is bent towards the blower to form a first plate body and a second plate body, and the refrigerant detection device is connected to one of the first plate body and the second plate body.

[0016] In one embodiment, the housing includes an outer shell having an installation cavity and an enclosing portion disposed in the installation cavity. The heat exchanger is disposed in the installation cavity, and the heat exchange structure, the connection plate, and the enclosing portion jointly enclose to form the second cavity.

[0017] In one embodiment, the enclosing portion includes a first section and a second section. The first section is located between the outer shell and the heat exchange structure and forms an included angle space with the second section. The refrigerant detection device is located in the included angle space.

[0018] In one embodiment, the outer shell includes a plurality of corner portions on the periphery of the installation cavity, and the enclosing portion is disposed between the main body and one of the corner portions.

[0019] Another embodiment of the present application provides an air conditioner, including the ceiling machine described above.

[0020] An embodiment of the present application provides a ceiling machine and an air conditioner. By disposing the refrigerant detection device in the second cavity jointly enclosed by the main body and the housing, or by disposing the refrigerant detection device in the first cavity enclosed by the main body in the housing and located between the second cavity and the blower, the refrigerant detection device can quickly detect the diffused gaseous refrigerant at the initial stage of refrigerant leakage, thereby improving the timeliness of detection by the refrigerant detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a ceiling machine provided by an embodiment of the present application;

[0022] Figure 2 is Figure 1 a partial enlarged view of part A in

[0023] Figure 3 is Figure 1 a schematic structural view of another perspective of the ceiling unit shown;

[0024] Figure 4 is Figure 3 a schematic structural view of the ceiling unit shown, where the thick grid area in the figure is the first cavity and the thin grid area is the second cavity;

[0025] Figure 5 is Figure 1 a schematic structural view of the connecting plate and the refrigerant detection device shown.

[0026] Explanation of reference numerals:

[0027] 10. Housing; 10a. First cavity; 10b. Second cavity; 11. Outer shell; 11a. Installation cavity; 111. Corner part; 12. Enclosing part; 12a. Included angle space; 121. First section; 122. Second section; 20. Heat exchanger; 21. Main body; 211. Heat exchange structure; 212. Connecting plate; 2121. First plate body; 2122. Second plate body; 22. Gas-liquid pipeline; 221. Gas pipe; 222. Liquid pipe; 30. Fan; 40. Refrigerant detection device. Detailed implementation manners

[0028] An embodiment of the present application provides a ceiling unit. Please refer to Figures 1 to 4 , and this ceiling unit includes a housing 10, a heat exchanger 20, a fan 30, and a refrigerant detection device 40.

[0029] The heat exchanger 20 includes a main body 21 disposed in the housing 10 and a gas-liquid pipeline 22 communicating with the main body 21. The main body 21 encloses a first cavity 10a (i.e., Figure 4 the thick grid area in Figure 4 ), and the main body 21 and the housing 10 jointly enclose a second cavity 10b (i.e.,

[0030] the thin grid area in

[0031] ), and the second cavity 10b is separated from the first cavity 10a by the main body 21. At least the connection part of the gas-liquid pipeline 22 with the main body 21 is located in the second cavity 10b. The main body 21 is used for heat-exchanging the air flow entering the housing 10. The main body 21 encloses the first cavity 10a, that is to say, the main body 21 is of an enclosed structure. Separation means that the first cavity 10a and the second cavity 10b are respectively located on opposite sides of the main body 21, but the air flow can circulate between the first cavity 10a and the second cavity 10b. Therefore, if the refrigerant in the heat exchanger 20 leaks, the gaseous refrigerant can also enter the first cavity 10a from the second cavity 10b.

[0032] The manner in which the gaseous refrigerant enters the first cavity 10a from the second cavity 10b is not limited. Exemplarily, the gaseous refrigerant can diffuse into the first cavity 10a through the diffusion of the molecules themselves.

[0033] The gas-liquid pipeline 22 is used to connect to an outdoor unit used in conjunction with the ceiling unit.

[0034] Please refer to Figure 2 , the gas-liquid pipeline 22 includes an air pipe 221 and a liquid pipe 222. The air pipe 221 is used to transport the gaseous refrigerant, the liquid pipe 222 is used to transport the liquid refrigerant, and the air pipe 221 and the liquid pipe 222 are respectively connected to the main body 21.

[0035] Please refer to Figures 1 to 4 , the blower 30 is disposed in the first cavity 10a to drive the indoor air flow to enter the housing 10 from the air return opening of the housing 10 and flow out from the air outlet of the housing 10.

[0036] The refrigerant detection device 40 is used to detect the gaseous refrigerant leaked from the heat exchanger 20.

[0037] The type of the refrigerant detection device 40 is not limited. Exemplarily, the refrigerant detection device 40 can be a refrigerant gas sensor.

[0038] Please continue to refer to Figures 1 to 4 , the refrigerant detection device 40 can be disposed in the second cavity 10b, and the refrigerant detection device 40 can also be disposed in the first cavity 10a and located between the second cavity 10b and the blower 30.

[0039] Another embodiment of the present application provides an air conditioner, which includes the ceiling unit described in any embodiment of the present application.

[0040] Specifically, the refrigerant leakage inside the ceiling unit generally includes two cases. The first case is that the gaseous refrigerant leaks from the main body 21 of the heat exchanger 20, and the leaked gaseous refrigerant is blown into the indoor space from the air outlet under the drive of the blower 30. The second case is that the gaseous refrigerant leaks from the gas-liquid pipeline 22 or the connection between the gas-liquid pipeline 22 and the main body 21. For example, for the gas-liquid pipeline 22 made of copper tubes, it generally includes a plurality of pipe fittings connected in sequence, and its connection method is generally welding, and the gas-liquid pipeline 22 and the main body 21 are generally also welded. When welding defects occur at each welding point, it is easy to cause refrigerant leakage. The leaked gaseous refrigerant generally diffuses in the second cavity 10b first, then diffuses from the second cavity 10b to the first cavity 10a, and finally is blown into the indoor space from the air outlet under the drive of the blower 30. Among them, the probability of the second case occurring is relatively high.

[0041] For the second case, the leaked gaseous refrigerant will first diffuse into the area within the second cavity 10b and the area of the first cavity 10a between the second cavity 10b and the blower 30. Therefore, the ceiling air conditioner according to the embodiment of the present application mainly targets the second case, and the refrigerant detection device 40 is arranged within the second cavity 10b jointly enclosed by the main body 21 and the housing 10, or the refrigerant detection device 40 is arranged within the first cavity 10a enclosed by the main body 21 within the housing 10 and located between the second cavity 10b and the blower 30, so that the refrigerant detection device 40 can quickly detect the diffused gaseous refrigerant at the initial stage of refrigerant leakage, thereby improving the timeliness of detection by the refrigerant detection device 40.

[0042] In one embodiment, please refer to Figures 1 to 4 , the main body 21 may include a connecting plate 212 and a heat exchange structure 211 communicated with the gas-liquid pipeline 22. The connecting plate 212 is respectively connected to the opposite ends of the heat exchange structure 211. The heat exchange structure 211 and the connecting plate 212 jointly enclose the first cavity 10a, and the heat exchange structure 211, the connecting plate 212 and the housing 10 jointly enclose and form the second cavity 10b.

[0043] That is to say, the main body 21 exchanges heat with the air flow flowing into the housing 10 through the heat exchange structure 211.

[0044] Figures 1 to 4 The heat exchange structure 211 shown is bent to make the opposite ends approach each other to form a notch therebetween, and the connecting plate 212 is arranged at the notch and connected to the opposite ends of the heat exchange structure 211.

[0045] The connecting plate 212 is not only part of the structure enclosing the first cavity 10a, but also part of the structure enclosing the second cavity 10b. That is to say, the first cavity 10a and the second cavity 10b are respectively located on the opposite sides of the connecting plate 212.

[0046] The connecting plate 212 separates the first cavity 10a and the second cavity 10b, but the first cavity 10a and the second cavity 10b are not mutually closed. For example, the first cavity 10a and the second cavity 10b can be communicated through the gap between the connecting plate 212 and the housing 10.

[0047] Exemplarily, the refrigerant detection device 40 can be arranged within the second cavity 10b and located between the connecting plate 212 and the gas-liquid pipeline 22.

[0048] This position is relatively close to the connecting plate 212, and the air flow has good fluidity. The leaked gaseous refrigerant can quickly diffuse into the area between the connecting plate 212 and the gas-liquid pipeline 22, so that the refrigerant detection device 40 can detect the leaked gaseous refrigerant more timely.

[0049] Exemplarily, please refer to Figures 1 to 4 , the refrigerant detection device 40 can also be disposed in the first cavity 10a and located between the connecting plate 212 and the blower 30.

[0050] The air flow mobility at this position is also relatively good, and the leaked gaseous refrigerant can quickly diffuse in this area, so that the refrigerant detection device 40 can detect the gaseous refrigerant leaked from the heat exchange structure 211 in time.

[0051] In one embodiment, please refer to Figure 4 , the refrigerant detection device 40 can be disposed on the connecting plate 212. That is to say, the refrigerant detection device 40 can be installed on the connecting plate 212 without adding other brackets for installing the refrigerant detection device 40, thereby improving production efficiency and reducing production costs.

[0052] The connection manner between the refrigerant detection device 40 and the connecting plate 212 is not limited. For example, the refrigerant detection device 40 and the connecting plate 212 can be non-removably connected by bonding, welding, etc., and the refrigerant detection device 40 and the connecting plate 212 can also be removably connected, such as snap connection, or fastened by fasteners such as screws and bolts.

[0053] Please refer to Figures 1 to 5 , the connecting plate 212 can be bent towards the blower 30 to form a first plate body 2121 and a second plate body 2122, and the refrigerant detection device 40 is connected to one of the first plate body 2121 and the second plate body 2122.

[0054] The connecting plate 212 can be bent towards the blower 30, which can not only strengthen the structural strength of the connecting plate 212, but also increase the space of the second cavity 10b to facilitate the installation of the refrigerant detection device 40.

[0055] The refrigerant detection device 40 is connected to one of the first plate body 2121 and the second plate body 2122. That is to say, the refrigerant detection device 40 can be disposed on the first plate body 2121 or on the second plate body 2122.

[0056] Preferably, please refer to Figures 1 to 5 , the refrigerant detection device 40 is disposed on the first plate body 2121 and located on the side of the first plate body 2121 close to the blower 30, that is, the refrigerant detection device 40 is disposed in the first cavity 10a and located between the connecting plate 212 and the blower 30.

[0057] Since the first plate body 2121 is formed by bending the connecting plate 212 towards the blower 30, disposing the refrigerant detection device 40 on the side of the first plate body 2121 close to the blower 30 can enable the refrigerant detection device 40 to detect the gaseous refrigerant leaked from the heat exchange structure 211 more timely.

[0058] In another embodiment, the refrigerant detection device 40 may be disposed on one side of the first plate body 2121 close to the gas-liquid pipeline 22, that is, the refrigerant detection device 40 is disposed in the second cavity 10b and located between the connecting plate 212 and the gas-liquid pipeline 22.

[0059] In another embodiment, the refrigerant detection device 40 may also be disposed on the second plate body 2122. For example, the refrigerant detection device 40 may be disposed on one side of the second plate body 2122 close to the blower 30, or may be disposed on one side of the second plate body 2122 close to the gas-liquid pipeline 22.

[0060] In one embodiment, the installation position of the refrigerant detection device 40 may be close to the connection portion between the gas-liquid pipeline 22 and the main body 21.

[0061] Since the probability of gaseous refrigerant leakage at the connection portion between the gas-liquid pipeline 22 and the main body 21 is relatively high, therefore, the installation position of the refrigerant detection device 40 close to the connection portion between the gas-liquid pipeline 22 and the main body 21 can enable the refrigerant detection device 40 to detect the leaked gaseous refrigerant more timely.

[0062] In one embodiment, please refer to Figure 1 and Figure 3 , the housing 10 may include a housing 11 having an installation cavity 11a and an enclosing portion 12 disposed in the installation cavity 11a. The heat exchanger 20 is disposed in the installation cavity 11a, and the heat exchange structure 211, the connecting plate 212, and the enclosing portion 12 jointly enclose to form the second cavity 10b.

[0063] The enclosing portion 12 can be used for heat insulation.

[0064] When the ceiling air conditioner is working, the temperature difference between the inside of the housing 10 and the room is relatively large. Since the second cavity 10b is at least formed by enclosing the housing 10, condensed water is likely to appear in the second cavity 10b. By providing the enclosing portion 12 in the installation cavity 11a of the housing 11 and enabling the heat exchange structure 211, the connecting plate 212, and the enclosing portion 12 to jointly enclose to form the second cavity 10b, the probability of forming condensed water in the second cavity 10b can be reduced.

[0065] Please continue to refer to Figures 1 to 3 , the housing 11 may include a plurality of corner portions 111 located on the periphery of the installation cavity 11a, and the enclosing portion 12 is disposed between the main body 21 and one of the corner portions 111.

[0066] That is to say, the second cavity 10b is located at one of the corner portions 111, and this position can facilitate the arrangement of the gas-liquid pipeline 22 and at the same time facilitate the connection between the gas-liquid pipeline 22 and the main body 21.

[0067] Further, please refer to Figures 1 to 3, the surrounding part 12 may include a first section 121 and a second section 122. The first section 121 is located between the housing 11 and the heat exchange structure 211, and an included angle space 12a is formed between the first section 121 and the second section 122. The refrigerant detection device 40 may be located in the included angle space 12a.

[0068] Since gaseous refrigerant that leaks is likely to accumulate in the included angle space 12a, therefore, by arranging the refrigerant detection device 40 in the included angle space 12a, the leaked gaseous refrigerant can be detected more timely.

[0069] In the description of the present application, the descriptions with reference to terms such as "in one embodiment", "in some embodiments", "in other embodiments", "in still other embodiments", or "exemplary" 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 embodiments of the present application. In the present application, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine the different embodiments or examples described in the present application and the features of different embodiments or examples.

[0070] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A ceiling-mounted air conditioner, characterized in that, Comprising: A housing; A heat exchanger, the heat exchanger comprising a main body disposed within the housing and a gas-liquid pipeline communicating with the main body, the main body surrounding a first cavity within the housing, and the main body and the housing jointly surrounding a second cavity, the second cavity being separated from the first cavity by the main body, and at least the connection portion of the gas-liquid pipeline with the main body being located within the second cavity; A blower, the blower being disposed within the first cavity; A refrigerant detection device, the refrigerant detection device being disposed within the second cavity; or, the refrigerant detection device being disposed within the first cavity and located between the second cavity and the blower.

2. The ceiling unit according to claim 1, wherein The main body comprises a connecting plate and a heat exchange structure communicating with the gas-liquid pipeline, the connecting plate being connected to opposite ends of the heat exchange structure respectively, the heat exchange structure and the connecting plate jointly surrounding the first cavity, and the heat exchange structure, the connecting plate and the housing jointly surrounding and forming the second cavity.

3. The ceiling-mounted air conditioner according to claim 2, characterized in that, The refrigerant detection device is disposed within the second cavity and located between the connecting plate and the gas-liquid pipeline.

4. The ceiling unit according to claim 2, wherein, The refrigerant detection device is disposed within the first cavity and located between the connecting plate and the blower.

5. The ceiling-mounted air conditioner according to any one of claims 2-4, characterized in that The refrigerant detection device is disposed on the connecting plate; and / or The installation position of the refrigerant detection device is close to the connection portion of the gas-liquid pipeline with the main body.

6. The ceiling-mounted unit according to claim 5, wherein, The connecting plate is bent towards the direction close to the blower to form a first plate body and a second plate body, and the refrigerant detection device is connected to one of the first plate body and the second plate body.

7. The ceiling-mounted air conditioner according to any one of claims 2-4, characterized in that, The housing comprises an outer shell having an installation cavity and an enclosing portion disposed within the installation cavity, the heat exchanger being disposed within the installation cavity, and the heat exchange structure, the connecting plate and the enclosing portion jointly surrounding and forming the second cavity.

8. The ceiling-mounted unit according to claim 7, wherein, The enclosing portion comprises a first section and a second section, the first section being located between the outer shell and the heat exchange structure and forming an included angle space with the second section, and the refrigerant detection device being located within the included angle space.

9. The ceiling-mounted air conditioner according to claim 8, wherein, The outer shell comprises a plurality of corner portions located on the periphery of the installation cavity, and the enclosing portion is disposed between the main body and one of the corner portions.

10. An air conditioner, characterized in that, Comprising the ceiling-mounted air conditioner according to any one of claims 1-9.

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