Ducted air conditioner and air conditioner

Abstract

The embodiment of the utility model provides a duct type air conditioner and an air conditioner, and the duct type air conditioner comprises a shell and an air detection device; the shell is provided with a containing cavity, an air return opening and an air outlet, the air return opening and the air outlet are communicated with the containing cavity, and an airflow path is formed between the air return opening and the air outlet; the air detection device is arranged on the air flow path and is close to the air return opening. According to the air pipe machine, indoor air can be detected timely and accurately.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioners, and particularly to an air duct machine and an air conditioner. Background Art

[0002] In order to facilitate the monitoring of the quality of indoor air, an air duct machine generally is configured with an air detection device.

[0003] However, in the related art, the air detection device is usually arranged on the air outlet panel used in cooperation with the air duct machine, and it is difficult for the air detection device to effectively detect the air flow passing through the air outlet panel. Therefore, the air detection device has problems such as delayed detection results, inaccuracy, and insufficient sensitivity. Summary of the Utility Model

[0004] In view of this, the embodiments of the present application are expected to provide an air duct machine and an air conditioner that can improve the timeliness and accuracy of the detection of the air detection device.

[0005] To achieve the above object, an embodiment of the present application provides an air duct machine, including:

[0006] A housing having a receiving cavity, a return air inlet and an air outlet that are respectively communicated with the receiving cavity, and an air flow path is formed between the return air inlet and the air outlet;

[0007] An air detection device arranged on the air flow path and close to the return air inlet.

[0008] In one embodiment, the air duct machine further includes a fan assembly arranged on the air flow path, and the air detection device is located upstream of the fan assembly along the air flow path.

[0009] In one embodiment, the fan assembly includes a volute having an air flow inlet and an air flow outlet, and a wind wheel arranged in the volute. The air flow inlet is located on one side of the wind wheel along the extension direction of the rotation axis, and the air detection device is located on the side of the volute provided with the air flow inlet and is spaced apart from the volute.

[0010] In one embodiment, on the projection plane perpendicular to the rotation axis, the projection of the air flow inlet and the projection of the air detection device are at least partially offset.

[0011] In one embodiment, the air duct machine further includes an electric control box on the side of the air detection device facing away from the volute, and the air detection device is electrically connected to the electric control box.

[0012] In one embodiment, the housing includes a chassis and an intermediate cross beam disposed on the chassis. The fan assembly and the air detection device are disposed on the same side of the intermediate cross beam, and the air detection device is disposed close to the intermediate cross beam, the chassis, and the electric control box.

[0013] In one embodiment, the housing includes a chassis and an intermediate cross beam disposed on the chassis. The fan assembly and the air detection device are disposed on the same side of the intermediate cross beam;

[0014] An air return opening is disposed on the side of the intermediate cross beam opposite to the chassis; and / or,

[0015] An air return opening is disposed on the side of the chassis opposite to the intermediate cross beam.

[0016] In one embodiment, the air detection device is exposed to the external view through the air return opening.

[0017] In one embodiment, the air detection device is at least detachably connected to the chassis.

[0018] In one embodiment, the air detection device is fixedly connected to the chassis. The intermediate cross beam has positioning ribs that enclose a positioning groove, and a part of the air detection device is located in the positioning groove.

[0019] In one embodiment, the air detection device includes a box body and a detection element. The box body has a detection cavity, an air inlet hole and an air outlet hole that are respectively communicated with the detection cavity. The air inlet hole is located upstream of the air outlet hole along the air flow path, and the detection element is disposed in the detection cavity.

[0020] The embodiment of the present application also provides an air conditioner, including the air duct machine described above.

[0021] The embodiment of the present application provides an air duct machine and an air conditioner. The air duct machine provided by the embodiment of the present application forms an air flow path between the air return opening and the air outlet opening, and is close to the air return opening. The indoor air flow can flow from the air return opening into the accommodation cavity and then flow to the air detection device in time. At the same time, since the air detection device is close to the air return opening, the air detection device can detect the air flow entering the accommodation cavity from the air return opening, so that the detection result of the air detection device can more accurately reflect the indoor air quality. Therefore, the air duct machine of the embodiment of the present application can detect the indoor air in time and accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of an air duct machine according to an embodiment of the present application;

[0023] Figure 2 is Figure 1 a schematic structural diagram of the air duct machine shown in the figure. The air duct machine in the figure does not install a return air cover;

[0024] Figure 3 Figure 1 a schematic structural diagram of the air duct machine shown in the figure. The thick black arrow in the figure indicates the installation direction of the air quality detection device;

[0025] Figure 4 is Figure 1 a partial structural diagram of the air duct machine shown in the figure from the first perspective;

[0026] Figure 5 is Figure 1 a partial structural diagram of the air duct machine shown in the figure from the second perspective;

[0027] Figure 6 is Figure 1 a partial structural diagram of the air duct machine shown in the figure from the third perspective. The thick hollow black arrow in the figure indicates the air flow path;

[0028] Figure 7 is Figure 1 a partial structural diagram of the air duct machine shown in the figure from the fourth perspective. The thick black arrow in the figure indicates the air flow path;

[0029] Figure 8 is Figure 1 a partial structural diagram of the air duct machine shown in the figure from the fifth perspective;

[0030] Figure 9 is Figure 1 an exploded view of the air detection device shown in the figure.

[0031] Explanation of reference numerals:

[0032] 10. Housing; 10a. Accommodation cavity; 10b. Return air inlet; 11. Chassis; 12. Intermediate cross beam; 121. Positioning rib; 121a. Positioning groove; 122. Wire pressing structure; 13. Return air cover; 20. Air detection device; 21. Box body; 21a. Detection cavity; 21b. Air inlet hole; 21c. Air outlet hole; 211. Box seat; 212. Box cover; 22. Detection element; 30. Fan assembly; 31. Volute; 31a. Air flow inlet; 32. Impeller; 40. Electric control box; 40a. Wire passing hole. Detailed implementation manners

[0033] An embodiment of the present application provides an air duct machine. Please refer to Figures 1 to 8 , the air duct machine includes a housing 10 and an air detection device 20.

[0034] The housing 10 has a receiving cavity 10a, an air return opening 10b and an air outlet that are respectively in communication with the receiving cavity 10a. An air flow path is formed between the air return opening 10b and the air outlet. The air detection device 20 is disposed on the air flow path and is close to the air return opening 10b.

[0035] The air return opening 10b is the entrance for the indoor air flow to enter the receiving cavity 10a. The air outlet is the outlet for the air flow to flow out of the receiving cavity 10a. That is to say, the indoor air flow first enters the receiving cavity 10a from the air return opening 10b and then flows into the room from the air outlet.

[0036] The air flow path is the path for the air flow entering the receiving cavity 10a to flow within the receiving cavity 10a.

[0037] The air detection device 20 being located on the air flow path means that the air flow will pass through the air detection device 20 during the process of flowing along the air flow path, and the air detection device 20 can detect it.

[0038] The air detection device 20 being close to the air return opening 10b means that the distance between the air detection device 20 and the air return opening 10b is closer than that between the air detection device 20 and the air outlet. Since the indoor air flow enters the receiving cavity 10a from the air return opening 10b, therefore, the air detection device 20 being close to the air return opening 10b can enable the air flow to flow to the air detection device 20 in a timely manner. At the same time, the detection result of the air detection device 20 can also more accurately reflect the indoor air quality.

[0039] The structure of the air detection device 20 is not limited. Exemplarily, please refer to Figure 9 , the air detection device 20 may include a box body 21 and a detection element 22. The box body 21 has a detection cavity 21a, an air inlet hole 21b and an air outlet hole 21c that are respectively in communication with the detection cavity 21a. The air inlet hole 21b is located upstream of the air outlet hole 21c along the air flow path, and the detection element 22 is disposed in the detection cavity 21a.

[0040] The air inlet hole 21b is the entrance for the air flow to enter the detection cavity 21a. The air outlet hole 21c is the outlet for the air flow to flow out of the detection cavity 21a.

[0041] The air inlet hole 21b is located upstream of the air outlet hole 21c along the air flow path. That is to say, there is an air flow path between the air inlet hole 21b and the air outlet hole 21c. The air flow outside the box body 21 enters the detection cavity 21a from the air inlet hole 21b and passes through the detection element 22 along the air flow path, so that the detection element 22 can detect the air flow.

[0042] The type of the detection element 22 is not limited. Exemplarily, the detection element 22 can be a PM2.5 sensor, a carbon dioxide sensor, a TVOC (Total Volatile Organic Compounds) sensor, a formaldehyde sensor, etc. The PM2.5 sensor is used to detect the concentration of PM2.5 particles in the indoor air. The carbon dioxide sensor is used to detect the concentration of carbon dioxide in the indoor air. The TVOC sensor is used to detect the concentration of volatile organic compounds in the indoor air. In another embodiment, the detection element 22 can further include a sensor for detecting other factors affecting air quality. Other factors affecting air quality include but are not limited to temperature, humidity, etc.

[0043] The number of the detection elements 22 is not limited. Exemplarily, please refer to Figure 9 , and three detection elements 22 are arranged in the detection cavity 21a. The types of the three detection elements 22 can be different so that the air detection device 20 can detect different components in the air flow. In some other embodiments, the number of the detection elements 22 can also be one, two, or more than three.

[0044] Please continue to refer to Figure 9 , for the convenience of disassembling and assembling the detection element 22, the box body 21 can include a box base 211 and a box cover 212 detachably connected to the box base 211. The box base 211 includes a detection cavity 21a with an opening, and the detection cavity 21a communicates with the outside through the opening. The box cover 212 is covered at the opening.

[0045] The embodiment of the present application also provides an air conditioner, and the air conditioner includes the air duct machine provided in any embodiment of the present application.

[0046] In the related art, the air detection device is generally arranged on the side of the air outlet panel facing away from the air duct machine and is located outside the air passing opening of the air outlet panel. That is to say, the air flow flowing out from the air passing opening does not pass through the air detection device. Such a setting method has multiple problems. On the one hand, the indoor air needs to circulate inside the air duct machine before passing through the air detection device. Therefore, the air detection device detects the air after circulating inside the air duct machine, and its detection result is not accurate enough. On the other hand, the air detection device is not at the air passing opening, and the air flow rate through the air detection device is slow. Therefore, the detection result of the air detection device has a certain delay. That is to say, the detection result of the air detection device in the related art is difficult to reflect the indoor air quality timely and accurately.

[0047] In the embodiment of the present application, the air duct machine is provided with an air detection device 20 on the air flow path formed between the air return opening 10b and the air outlet, and close to the air return opening 10b, so that the indoor air flow can flow into the accommodation cavity 10a from the air return opening 10b and then flow to the air detection device 20 in time. At the same time, since the air detection device 20 is close to the air return opening 10b, the air detection device 20 can detect the air flow entering the accommodation cavity 10a from the air return opening 10b, so that the detection result of the air detection device 20 can more accurately reflect the indoor air quality. Therefore, the air duct machine of the embodiment of the present application can detect the indoor air in time and accurately.

[0048] In addition, the air outlet panel in the related art is a non-standard standard part, and the user can choose to install or not install the air outlet panel according to needs. If the customer chooses not to install the air outlet panel, the air detection device cannot be installed on the air duct machine, and the customer's need to install the air detection device cannot be met.

[0049] In the embodiment of the present application, by arranging the air detection device 20 in the accommodation cavity 10a, the subsequent installation of the air detection device 20 can be facilitated.

[0050] In one embodiment, please refer to Figures 1 to 6 , the air duct machine further includes a fan assembly 30 arranged on the air flow path, and the air detection device 20 can be located upstream of the fan assembly 30 along the air flow path.

[0051] The fan assembly 30 is used to drive the air flow to flow along the air flow path.

[0052] The air detection device 20 is located upstream of the fan assembly 30 along the air flow path. That is to say, when the fan assembly 30 drives the air flow, part of the indoor air flow first flows through the air detection device 20 from the air return opening 10b and then flows to the fan assembly 30.

[0053] Arranging the air detection device 20 upstream of the fan assembly 30 along the air flow path can enable the air flow to enter the air detection device 20 more quickly, thereby improving the detection accuracy of the air detection device 20.

[0054] The installation position of the air detection device 20 upstream of the fan assembly 30 along the air flow path is not limited. Exemplarily, please refer to Figures 2 to 6 , the fan assembly 30 may include a volute 31 having an air flow inlet 31a and an air flow outlet, and a wind wheel 32 arranged in the volute 31. The air flow inlet 31a is located on one side of the wind wheel 32 along the extension direction of the rotation axis. The air detection device 20 can be located on the side of the volute 31 provided with the air flow inlet 31a and is spaced from the volute 31.

[0055] That is to say, Figures 2 to 6The blower assembly 30 shown is a centrifugal blower. During the rotation of the impeller 32, a negative pressure is formed in the area within the volute 31. Under the action of the negative pressure, the external air flow is sucked into the volute 31 from the air inlet 31a, and then is thrown out of the impeller 32 from the air outlet, so as to cycle. It should be noted that during the rotation of the impeller 32, the air flow in the air flow path flows from the place with lower negative pressure to the place with higher negative pressure, that is, the closer to the air inlet 31a, the higher the negative pressure, and the faster the air flow speed in this area.

[0056] The air inlet 31a is located on one side of the impeller 32 along the extension direction of the rotation axis, that is, the air flow enters the impeller 32 along one side of the rotation axis of the impeller 32.

[0057] Since the air detection device 20 is located on the side of the volute 31 where the air inlet 31a is provided, that is to say, the air detection device 20 is arranged on one side of the volute 31 along the extension direction of the rotation axis of the impeller 32. Therefore, this position can make there be a certain air flow on the outside of the air detection device 20 to facilitate the air flow to enter the detection chamber 21a. At the same time, since the air detection device 20 is arranged at an interval from the volute 31, the air detection device 20 will not block the air inlet 31a. Therefore, this setting method can not only better avoid the air detection device 20 from affecting the air inlet effect at the air inlet 31a, but also make the air flow velocity flowing through the air detection device 20 not too fast to affect the detection result.

[0058] Please refer to Figure 5 and Figure 6 , on the projection plane perpendicular to the rotation axis, the projection of the air inlet 31a and the projection of the air detection device 20 can be at least partially staggered.

[0059] That is to say, the projection of the air inlet 31a and the projection of the air detection device 20 can be partially staggered or completely staggered, which is equivalent to the air detection device 20 being eccentrically arranged relative to the air inlet 31a. This setting method can enable the air detection device 20 to better avoid the air inlet 31a, thereby further reducing the influence of the air detection device 20 on the air inlet effect at the air inlet 31a.

[0060] In other embodiments, the blower assembly 30 can also be any one of an axial-flow blower, a mixed-flow blower or a cross-flow blower, etc., which can drive the air flow to flow along the air flow path.

[0061] In one embodiment, please refer to Figures 1 to 8 , the air duct machine further includes an electric control box 40, and the electric control box 40 can be arranged on the side of the air detection device 20 away from the volute 31, and the air detection device 20 is electrically connected to the electric control box 40.

[0062] Electrical connection refers to a circuit connection with physical contact. That is, the air detection device 20 is electrically connected to the electric control box 40 through a cable.

[0063] The electric control box 40 is used to supply power to the air detection device 20 and can also control the air detection device 20.

[0064] By arranging the electric control box 40 on the side of the air detection device 20 away from the volute 31, it is convenient for the cable routing of the air detection device 20.

[0065] Figures 1 to 8 The shown electric control box 40 is directly arranged on the side of the air detection device 20 away from the volute 31. That is to say, there is no other plate body separating the electric control box 40 and the air detection device 20.

[0066] For the convenience of wiring between the air detection device 20 and the electric control box 40, please refer to Figure 5 and Figure 8 , and a wire passing port 40a communicating with the accommodation cavity 10a can be arranged on the side of the electric control box 40 close to the air detection device 20.

[0067] In some other embodiments, the electric control box 40 and the air detection device 20 can also be separated by other plate bodies. For example, in another embodiment, the housing 10 can also be provided with a side plate between the electric control box 40 and the air detection device 20. The electric control box 40 is arranged on the side of the side plate away from the accommodation cavity 10a, while the air detection device 20 is arranged on the side of the side plate close to the accommodation cavity 10a.

[0068] In one embodiment, please refer to Figures 1 to 8 , the housing 10 can include a chassis 11 and an intermediate cross beam 12 arranged on the chassis 11. The chassis 11 is used to enclose the accommodation cavity 10a, and the intermediate cross beam 12 is actually located inside the accommodation cavity 10a. The fan assembly 30 and the air detection device 20 can be arranged on the same side of the intermediate cross beam 12, and the installation position of the air detection device 20 is close to the intermediate cross beam 12, the chassis 11, and the electric control box 40.

[0069] The position where the air detection device 20 is arranged close to the intermediate cross beam 12, the chassis 11, and the electric control box 40 means that the installation position of the air detection device 20 is close to the intersection of the intermediate cross beam 12, the chassis 11, and the electric control box 40. Here, it is not only convenient for wiring between the air detection device 20 and the electric control box 40, but also the pressure difference and wind speed at this place are small, which can reduce the influence of the air detection device 20 on the return air of the fan assembly 30.

[0070] Please refer to Figures 1 to 4 , Figure 7 and Figure 8, a wire pressing structure 122 can also be provided on one side of the middle cross beam 12, so that the cables can be routed centrally, facilitating cable management.

[0071] In one embodiment, the housing 10 can have two air return openings 10b. Please refer to Figures 1 to 8 , and the two air return openings 10b can be respectively provided on one side of the middle cross beam 12 opposite to the chassis 11 and one side of the chassis 11 opposite to the middle cross beam 12.

[0072] The air return opening 10b provided on one side of the middle cross beam 12 opposite to the chassis 11 can be called a side air return opening, and the air return opening 10b located on one side of the chassis 11 opposite to the middle cross beam 12 can be called a lower air return opening.

[0073] Please refer to Figure 1 , the housing 10 can also be provided with an air return cover plate 13. According to the actual engineering installation situation, when the air duct machine only needs to return air from the lower air return opening, the side air return opening can be covered with the air return cover plate 13. Similarly, when the air duct machine only needs to return air from the side air return opening, the lower air return opening can be covered with the air return cover plate 13, so that two different air return methods can be realized.

[0074] In some other embodiments, air can also be introduced simultaneously from the lower air return opening and the side air return opening to increase the air intake volume of the air duct machine.

[0075] In some other embodiments, the housing 10 can also be provided with only one air return opening 10b. The air return opening 10b can be provided on one side of the middle cross beam 12 opposite to the chassis 11, or the air return opening 10b can be provided on one side of the chassis 11 opposite to the middle cross beam 12. That is to say, the air return opening 10b of the housing 10 can be only one of the side air return opening or the lower air return opening.

[0076] In one embodiment, please refer to Figure 3 , the air detection device 20 can be exposed to the external view through the air return opening 10b.

[0077] The external view means that the maintenance personnel can observe the air detection device 20 from the air return opening 10b. The maintenance personnel can install the air detection device 20 into the accommodation cavity 10a from the air return opening 10b, or take out the air detection device 20 from the air return opening 10b. This setting method can not only facilitate the maintenance or replacement of the air detection device 20, but also facilitate the subsequent installation of the air detection device 20.

[0078] In one embodiment, for the embodiment in which the housing 10 includes the middle cross beam 12 and the chassis 11, the air detection device 20 can be detachably connected to at least the chassis 11. That is to say, the air detection device 20 can be detachably connected only to the chassis 11, or can be detachably connected to both the chassis 11 and the middle cross beam 12 at the same time.

[0079] The manner of detachable connection is not limited. Exemplarily, it can be snap connection, plug connection, or fastening connection, etc.

[0080] Please refer to Figures 1 to 4 、 Figure 7 and Figure 8 , the air detection device 20 can be fixedly connected to the chassis 11. The middle cross beam 12 has positioning ribs 121 that enclose a positioning groove 121a, and a part of the air detection device 20 is located within the positioning groove 121a.

[0081] The fastening connection means that the air detection device 20 and the chassis 11 are connected by fasteners such as screws and bolts.

[0082] The positioning ribs 121 are used to position the air detection device 20. Please refer to Figure 3 , the positioning rib 121 is a U-shaped structure, and the shape of the positioning groove 121a matches the outer shape of the air detection device 20. By making part of the structure of the air detection device 20 snap into the positioning groove 121a, it is convenient to fixedly connect the air detection device 20 to the chassis 11.

[0083] 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.

[0084] 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, the present application can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A duct machine, characterized in that: include: A housing, the housing having a receiving cavity and an air return port and an air outlet respectively connected to the receiving cavity, an air flow path being formed between the air return port and the air outlet; An air detection device is arranged on the air flow path and close to the return air outlet.

2. The air duct machine according to claim 1, characterized in that: The air duct machine also includes a fan assembly arranged on the air flow path, and the air detection device is located upstream of the fan assembly along the air flow path.

3. The air duct machine according to claim 2, characterized in that: The fan assembly includes a volute having an air flow inlet and an air flow outlet, and a wind wheel arranged in the volute, the air flow inlet is located on one side of the wind wheel along the extension direction of the rotation axis, and the air detection device is located on the side of the volute where the air flow inlet is arranged, and is spaced apart from the volute.

4. The air duct machine according to claim 3, characterized in that: On a projection plane perpendicular to the rotation axis, a projection of the air flow inlet and a projection of the air detection device are at least partially offset.

5. The air duct machine according to claim 3 or 4, characterized in that: The duct machine also includes an electric control box located on a side of the air detection device away from the volute, and the air detection device is electrically connected to the electric control box.

6. The air duct machine according to claim 5, characterized in that: The shell includes a chassis and an intermediate crossbeam arranged on the chassis, the fan assembly and the air detection device are arranged on the same side of the intermediate crossbeam, and the setting position of the air detection device is close to the intermediate crossbeam, the chassis and the electric control box.

7. The air duct machine according to any one of claims 2 to 4, characterized in that: The housing comprises a chassis and an intermediate crossbeam arranged on the chassis, and the fan assembly and the air detection device are arranged on the same side of the intermediate crossbeam; The return air outlet is arranged on a side of the middle cross beam opposite to the chassis; and / or, The return air outlet is arranged on a side of the chassis opposite to the middle cross beam.

8. The air duct machine according to claim 7, characterized in that: The air detection device is exposed to the external field of view through the return air port.

9. The air duct machine according to claim 7, characterized in that: The air detection device is at least detachably connected to the chassis.

10. The air duct machine according to claim 9, characterized in that: The air detection device is tightly connected to the chassis, the middle cross beam has positioning ribs surrounding a positioning groove, and a part of the air detection device is located in the positioning groove.

11. The air duct machine according to any one of claims 1 to 4, characterized in that: The air detection device comprises a box body and a detection element. The box body has a detection cavity and an air inlet and an air outlet respectively connected to the detection cavity. The air inlet is located upstream of the air outlet along the air flow path. The detection element is arranged in the detection cavity.

12. An air conditioner, characterized in that: Including the duct machine described in any one of claims 1-11.

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