Air net, panel and outdoor unit

Abstract

The utility model belongs to the technical field of air conditioners, and particularly discloses an air net, a panel and an outdoor unit, the air net comprises an air net body, the air net body comprises a mounting part and a grating part, the grating part is arranged on the periphery of the mounting part and connected with the mounting part, meshes for air to enter and exit are formed in the grating part, and the air net further comprises a heating structure. The grating part is provided with a first clamping groove matched with the heating structure, and the heating structure is arranged in the first clamping groove and connected with the grating part in a clamped mode. According to the wind net, the panel comprising the wind net and the outdoor unit comprising the wind net, the possibility of frosting and freezing on the wind net can be effectively reduced in environments such as low external temperature and rainy and snowy weather.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to an air grille, a panel and an outdoor unit. Background Art

[0002] Generally, a heat pump type air conditioner consists of an indoor unit and an outdoor unit. When the outdoor ambient temperature is too low, the water vapor blown out by the evaporator defrosting or the moisture outdoors is likely to frost or ice on the air outlet grille arranged at the air outlet of the outdoor unit, and even an ice pendant may be formed on the air outlet grille. Once the freezing situation deteriorates, the air outlet of the outdoor unit will be blocked or covered by ice, resulting in a reduction in the effective heat exchange area of the air conditioner and affecting the heating capacity of the air conditioner.

[0003] In the prior art, generally, the refrigeration and heating are switched to promote the defrosting of the outdoor unit, or a heating device is arranged on the chassis or side plate of the outdoor unit to melt the generated frost and ice. However, in bad weather conditions, since the air outlet grille is far away from the heat exchange device in the outdoor unit or the heating device arranged on the chassis or side plate of the outdoor unit, the heat conduction effect is limited and the frost and ice on the air outlet grille cannot be quickly removed. Summary of the Utility Model

[0004] One of the technical problems to be solved by the utility model is to provide an air grille which can effectively solve the problems of its own frosting and icing.

[0005] Another technical problem to be solved by the utility model is to provide a panel which can effectively solve the problem that the air outlet is blocked or covered due to the frosting and icing of the air grille.

[0006] The third technical problem to be solved by the utility model is to provide an outdoor unit which can solve the problem of reduction in the effective heat exchange area due to frosting and icing.

[0007] The above first technical problem is solved by the following technical solutions:

[0008] An air grille, comprising an air grille body, the air grille body further comprising an installation part and a grille part, the grille part is arranged on the outer periphery of the installation part and is connected with the installation part, mesh holes for gas to enter and exit are formed on the grille part, the air grille further comprises a heating structure, the grille part is provided with a first clamping groove matched with the heating structure, and the heating structure is placed in the first clamping groove and is clamped with the grille part.

[0009] The air grille of the utility model, compared with the background art, has the following beneficial effects:

[0010] By providing a heating structure on the main body of the air duct network, the possibility of frosting and icing on the air duct network can be effectively reduced in environments with low external temperatures, rain, snow, etc. Moreover, the heating structure is snap-fitted and fixed in the first card slot provided on the grille part, which is beneficial to the relative stability between the heating structure and the main body of the air duct network, and also facilitates the disassembly and assembly of the heating structure, so that the heating structure can be replaced in time when it is damaged. The heating structure is annularly arranged on the grille part, which can reduce the influence of the heating structure on the cooling fan installed on the installation part.

[0011] In one embodiment, the heating structure is in interference fit with the first card slot; alternatively, a first clamping block is provided in the first card slot, and the heating structure is located in the first card slot and is limited and fixed between the two first clamping blocks.

[0012] In one embodiment, the air duct network further includes a cover plate detachably connected to the first card slot, and the cover plate seals the notch of the first card slot.

[0013] In one embodiment, a second card slot is provided on the cover plate, and the main body of the air duct network further includes second clamping blocks provided on both sides of the notch of the first card slot, and the second clamping blocks are snap-fitted into the second card slot.

[0014] In one embodiment, the cover plate abuts against the first clamping block.

[0015] In one embodiment, the heating structure includes a heating main body arranged in a ring shape, and heating connection parts are connected to both ends of the heating main body. The first card slot includes a main body slot part and an extension slot part. The main body slot part is arranged in a ring shape, and the heating main body is snap-fitted into the main body slot part. The first end of the extension slot part is communicated with the main body slot part, and the second end of the extension slot part extends to the outer edge of the main body of the air duct network, and the heating connection parts are led out of the main body of the air duct network through the extension slot part.

[0016] In one embodiment, the main body slot part is located in the middle of the grille part along the radial direction.

[0017] In one embodiment, the air duct network further includes a temperature sensor for sensing the external environment temperature where the air duct network is located. The temperature sensor is placed in the main body slot part, and the sensing end of the temperature sensor penetrates out of the main body slot part.

[0018] The above second technical problem is solved by the following technical solutions:

[0019] A panel, the panel includes a panel main body and the air duct network described in any of the above embodiments. An installation opening is provided on the panel main body, and the air duct network is detachably arranged at the installation opening of the panel main body.

[0020] The panel described in the present utility model has the following beneficial effects: it can effectively eliminate frosting and icing on the air grid, and reduce the possibility that the air outlet of the outdoor unit is blocked or covered.

[0021] The above-mentioned third technical problem is solved by the following technical solution:

[0022] An outdoor unit includes an outdoor heat exchanger and side plates. The outdoor unit further includes the panel in the above-mentioned embodiment. The panel cooperates with a plurality of side plates to form an accommodation space, and the outdoor heat exchanger is located in the accommodation space.

[0023] Compared with the background technology, the outdoor unit described in the present utility model has the following beneficial effects: the possibility of icing and frosting on the air grid is low, and the effective heat exchange area is not easily affected by the weather. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of the air grid provided in the embodiment of the present utility model;

[0025] Figure 2 is Figure 1 a schematic structural diagram of part A in

[0026] Figure 3 It is an exploded structural diagram of the air grid provided in the embodiment of the present utility model;

[0027] Figure 4 is Figure 3 an enlarged structural diagram of part B in

[0028] Figure 5 It is a schematic structural diagram of the heating structure clamped in the first card slot provided in the embodiment of the present utility model;

[0029] Figure 6 is Figure 5 an enlarged schematic diagram of part C in

[0030] Figure 7 is Figure 5 an enlarged schematic diagram of part D in

[0031] Figure 8 It is a schematic structural diagram of the panel provided in the embodiment of the present utility model;

[0032] Figure 9 It is an exploded structural diagram of the panel provided in the embodiment of the present utility model.

[0033] Label description:

[0034] 10. Air duct; 11. Air duct body; 111. Grille part; 1111. Ring frame bar; 1112. Spoke; 1113. First card slot; 11131. Main body slot part; 11132. Extension slot part; 11133. First clamping block; 11134. Second clamping block; 112. Installation part; 113. Probe hole; 114. Third clamping block; 12. Heating structure; 13. Cover plate; 131. Cover plate body; 132. Limiting plate; 133. Second card slot; 14. Temperature sensor;

[0035] 20. Panel body; 21. Installation opening; 22. Wire outlet hole; 23. Card hole. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0037] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0038] The terms "first" and "second" are only used for descriptive purposes, and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0039] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0040] Refer to Figures 1-7As shown in the figure, in an embodiment of the present utility model, a wind net is provided, which includes a wind net body 11 and a heating structure 12. The wind net body 11 further includes an installation part 112 and a grille part 111. Among them, the installation part 112 is used for installing the cooling fan in the outdoor unit. The shape of the installation part 112 can be set to a circle or a rectangle, which is not limited in the embodiment of the present utility model. The grille part 111 is arranged on the outer periphery of the installation part 112 and is connected to the installation part 112. Mesh holes for gas to enter and exit are formed on the grille part 111. For the purpose of protecting the heating structure 12, a first clamping groove 1113 cooperating with the heating structure 12 is provided on the grille part 111, and the heating structure 12 is placed in the first clamping groove 1113 and is clamped with the grille part 111.

[0041] The above-mentioned wind net is provided with a heating structure 12 on the wind net body 11, which can effectively reduce the possibility of frosting and icing on the wind net in environments such as low external temperature and rainy and snowy weather. Moreover, the heating structure 12 is clamped and fixed on the wind net body 11, which is beneficial to the relative stability between the heating structure 12 and the wind net body 11, and also facilitates the disassembly and assembly of the heating structure 12, so that the heating structure 12 can be replaced in time when it is damaged. The heating structure is arranged on the grille part 111, which is beneficial to heating the grille part 111 and reducing the influence on the motor of the cooling fan located on the installation part 112.

[0042] Specifically, the clamping limit of the first clamping groove 1113 on the heating structure 12 can be achieved by reasonably defining the size of the first clamping groove 1113. For example, the width of the first clamping groove 1113 is slightly smaller than the width of the heating structure 12, so that the heating structure 12 and the first clamping groove 1113 are in interference fit. Or as Figure 6 shown, a first clamping block 11133 is arranged in the first clamping groove 1113. The width of the first clamping groove 1113 is greater than the width of the heating structure 12. At least two first clamping blocks 11133 are symmetrically arranged on both sides of the first clamping groove 1113 along the width direction. The heating structure 12 can be placed in the first clamping groove 1113 and clamped between the two first clamping blocks 11133, so as to realize the clamping and fixing with the wind net body 11. Using the first clamping block 11133 to fix the heating structure 12 can reduce the fixing difficulty of the heating structure 12.

[0043] Based on the setting of the first clamping groove 1113, referring to Figure 3 shown, in one embodiment, the wind net further includes a cover plate 13. The cover plate 13 seals the notch of the first clamping groove 1113 to further protect the heating structure 12. The cover plate 13 is detachably connected to the wind net body 11 by means including but not limited to bolt connection and clamping.

[0044] Referring to Figure 2As shown, in one embodiment, the air duct body 11 includes a first clamping structure, and the cover plate 13 includes a second clamping structure. The cover plate 13 is clamped and cooperated with the air duct body 11 through the mutually cooperating first clamping structure and second clamping structure. The clamping method is not only convenient for disassembly and assembly, but also does not require the use of additional fixing parts, reducing the risk that may be caused by the loosening of the fixing parts.

[0045] In one embodiment, the first clamping structure includes at least two second clamping blocks 11134, and the second clamping structure includes a second clamping groove 133. The two second clamping blocks 11134 are respectively arranged on opposite sides of the notch of the first clamping groove 1113. A guiding surface for guiding the cover plate 13 is arranged on the second clamping block 11134, and the second clamping groove 133 is arranged on the top surface of the cover plate 13. Specifically, the cover plate 13 includes a cover plate body 131 and a limiting plate 132. A plurality of limiting plates 132 are fixedly arranged at intervals along the circumference on the side of the cover plate body 131 facing away from the first clamping groove 1113. Limiting grooves are respectively opened on opposite sides of the limiting plate 132 along the width direction of the first clamping groove 1113. When the cover plate body 131 seals the notch of the first clamping groove 1113, it at least partially seals one end opening of the limiting groove facing the first clamping groove 1113 to cooperate with the limiting groove to form the second clamping groove 133, and the second clamping block 11134 is clamped in the limiting groove, that is, the second clamping groove 133.

[0046] In another embodiment, the first clamping structure includes a second clamping groove 133 opened on the groove wall of the first clamping groove 1113, and the second clamping structure includes a second clamping block 11134 arranged on the cover plate 13.

[0047] It should be emphasized that the width of the limiting plate 132 is greater than the width of the first clamping groove 1113 to prevent the cover plate 13 from moving into the first clamping groove 1113. Further, the cover plate 13 abuts against the first clamping block 11133. In addition to playing a role in limiting and fixing the heating structure 12, the first clamping block 11133 can also be used to support the cover plate 13 to limit the cover plate 13 from moving into the first clamping groove 1113, further improving the stability of the cover plate 13 relative to the first clamping groove 1113 and avoiding the extrusion of the heating structure 12 by the cover plate 13 or the noise generated by the shaking of the cover plate 13 due to the air flow. Moreover, the second clamping groove 133 is formed by the cooperation of the cover plate body 131 and the limiting plate 132. Compared with being directly opened on the cover plate body 131, it can reduce the weight of the cover plate 13 and is not easy to increase the load of the air duct.

[0048] In one embodiment, the heating structure 12 is an electric heating structure. The heating body of the heating structure 12 includes an annular electric heating tape or electric heating wire. The electric heating wire or electric heating tape is light in weight and generally small in diameter, which neither easily increases the load of the air net 10 nor easily affects the effective air outlet area of the air net 10. To connect to an external power supply, the heating structure further includes a cable. Both the electric heating tape and the electric heating wire are connected to the external power supply through the cable.

[0049] In another embodiment, the heating structure 12 heats the air net body through heat exchange with a heat-conducting medium. At this time, the heating body of the heating structure 12 includes a heating pipe arranged in a ring shape. A heat-conducting medium can flow in the heating pipe, and the heat-conducting medium can provide heat to the air net body 11. For example, the heating pipe can be connected to the outlet of the compressor and the inlet of the outdoor heat exchanger in the air conditioner, using the compressor as the supply device for the heat-conducting medium, so that there is no need to additionally set a supply device for the heat-conducting medium.

[0050] Whether it is an electric heating structure or a heating structure that realizes heating through heat exchange with a heat-conducting medium, it needs to be connected to an external device (the electric heating tape needs to be connected to the power supply, and the heating pipe needs to be connected to the supply device for the heat-conducting medium). Therefore, the heating structure further includes heating connection parts arranged at both ends of the heating body (if the heating structure 12 is an electric heating structure, the heating connection part is a cable; if the heating body includes a heating pipe, the heating connection part is a connecting pipe). In order to lead out the heating structure 12 from the air net body 11 and form a protection, the first card slot 1113 includes a main slot part 11131 and an extending slot part 11132. The main slot part 11131 is arranged in a ring shape. The first end of the extending slot part 11132 is communicated with the main slot part 11131, and the second end extends to the outer edge of the air net body 11.

[0051] Taking the heating body including an electric heating tape as an example, the electric heating tape is arranged around the main slot part 11131, and the cable connected to the electric heating tape is led out from the extending slot part 11132 to the area where the air net body 11 is located. It can be understood that in order to minimize the influence of the extending slot part 11132 on the effective air outlet area of the air net body 11, the extending slot part 11132 is arranged in a straight line and extends along the radial direction of the grille part 111.

[0052] In one embodiment, the air net further includes a temperature sensor 14. The temperature sensor 14 is used to sense the external environment temperature where the air net 10 is located, so as to be able to start the heating structure 12 when it is necessary to heat the air net body 11, reducing energy consumption.

[0053] The temperature sensor 14 also needs to be connected to the electronic control module of the air conditioner through a cable. When the temperature sensor 14 monitors that the external environment temperature where the air duct 10 is located is less than the preset temperature, the electronic control module controls the heating structure 12 to start or be connected, and then heats the air duct body 11. The preset temperature can be determined according to the local climate environment including air humidity, and is not specifically limited in the embodiments of the present utility model.

[0054] Based on the setting of the extension groove portion 11132, as shown in Figure 3 the cable connecting the temperature sensor 14 and the electronic control module extends out of the air duct body 11 from the extension groove portion 11132, and a probe hole 113 for the sensing end of the temperature sensor 14 to extend out is arranged inside the first card slot 1113 corresponding to the position of the temperature sensor 14. The sensing end of the temperature sensor 14 extends out of the first card slot 1113 from the probe hole 113, so as to more directly monitor the temperature of the external environment where the air duct is located.

[0055] In one embodiment, the main body groove portion 11131 is located in the middle of the grille portion 111 in the radial direction, that is, the position of the heating main body on the air duct body 11 can meet the requirement of uniformly heating the grille portion 111.

[0056] In one embodiment, the grille portion 111 includes a plurality of annular frame bars 1111 sleeved in sequence from inside to outside at intervals and spokes 1112 connecting the plurality of annular frame bars 1111. The plurality of spokes 1112 are arranged at intervals along the circumferential direction of the annular frame bars 1111. The spokes 1112 and the annular frame bars 1111 cooperate with each other to form mesh holes for gas to enter and exit. The main body groove portion 11131 is arranged between two adjacent annular frame bars 1111.

[0057] The setting of the spokes 1112 is to ensure the structural strength of the air duct body 11. Therefore, there are requirements for the distance between two adjacent spokes 1112 arranged along the circumferential direction. Since the spokes 1112 are arranged in a radial pattern along the circumferential direction of the installation portion 112, the distance between two adjacent spokes 1112 becomes larger and larger. Obviously, this requirement is based on the connection strength of the annular frame bar 1111 located on the relatively outer side of the air duct body 11. While meeting the structural strength of the air duct body 11, reducing the number or total length of the spokes 1112 can increase the effective air outlet area of the air duct body 11 under the condition that the area of the air duct body 11 remains unchanged. As shown in Figure 1As shown, there are two sets of spokes 1112. One set is located on the side of the main body groove portion 11131 close to the mounting portion 112 and is arranged at intervals along the circumferential direction of the mounting portion 112, and the other set is located on the side of the main body groove portion 11131 far from the mounting portion 112 and is arranged at intervals along the circumferential direction of the mounting portion 112. Among the set of spokes 1112 located outside the main body groove portion 11131, the central angle corresponding to two adjacent spokes 1112 is smaller than the central angle corresponding to two adjacent spokes 1112 in the set of spokes 1112 located inside the main body groove portion 11131. Thus, on the basis of meeting the connection strength of the plurality of annular frame bars 1111 located outside the main body groove portion 11131, the number of spokes 1112 required to connect the plurality of annular frame bars 1111 located inside the main body groove portion 11131 can be reduced, and then the effective air outlet area of the air net body 11 can be increased.

[0058] In other embodiments, the grille portion 111 can also be arranged in a mesh shape or other annular structures with mesh holes, which will not be elaborated here.

[0059] Reference Figure 8 and Figure 9 As shown, in an embodiment of the present invention, a panel is further provided. The panel includes a panel body 20 and the air net 10 in any of the above embodiments. An installation opening 21 is formed on the panel body 20, and the air net 10 is detachably arranged at the installation opening 21 of the panel body 20 by means including but not limited to snap connection and bolt connection.

[0060] In one embodiment, in order to reduce the disassembly and assembly difficulty of the air net 10 and improve safety at the same time, the panel body 20 includes a third snap connection structure, and the air net body 11 includes a fourth snap connection structure. The air net body 11 is snap-connected to the panel body 20 through the mutually cooperating third snap connection structure and fourth snap connection structure. Specifically, the third snap connection structure includes a snap hole 23, and the fourth snap connection structure includes a third snap block 114 arranged on the outer edge of the air net body 11. A plurality of snap holes 23 are arranged at intervals along the circumferential direction of the panel body 20. The snap hole 23 includes an insertion portion and a snap connection portion. The width of the insertion portion along the circumferential extension direction of the installation opening 21 is greater than the width of the snap connection portion. A plurality of third snap blocks 114 are arranged at intervals along the circumferential direction of the air net 10 corresponding to the snap holes 23.

[0061] When assembling the air net 10 and the panel body 20, first insert the third snap block 114 into the insertion portion, and then rotate the air net 10 to snap the third snap block 114 into the snap connection portion, realizing the snap connection cooperation between the air net 10 and the panel body 20. In order to prevent the air net 10 from rotating relative to the panel body 20, at least one installation hole is formed on the outer edge of the air net 10, and a threaded hole is correspondingly formed on the panel body 20. The relative rotation between the air net 10 and the panel body 20 is restricted by a bolt passing through the installation hole and the threaded hole.

[0062] In the above embodiments, the connection between the air duct network 10 and the panel body 20 adopts a combination of bolt connection and snap connection, which not only reduces the assembly difficulty but also ensures the connection stability between the air duct network 10 and the panel body 20.

[0063] In addition, a wire outlet hole 22 is formed in the panel, and the cables used to connect the electric heating tape and the temperature sensor 14 pass through the wire outlet hole 22 and are connected to the electric control module of the air conditioner. Specifically, in order to better pass the cable through the wire outlet hole 22, the second end of the extension groove portion 11132 faces a third snap block 114, and the wire outlet hole 22 communicates with one of the card holes 23. The third snap block 114 not only plays a role in snap connection with the card hole 23, but also helps to change the direction of the cable, reducing the difficulty of passing the cable through the wire outlet hole 22.

[0064] An embodiment of the present invention further provides an outdoor unit, which includes an outdoor heat exchanger, side plates, and the panel in any of the above embodiments. The panel cooperates with a plurality of side plates to enclose a containing space, and the outdoor heat exchanger is located in the containing space.

[0065] It should be noted that based on the setting of the first card slot 1113, when the panel is installed at the air outlet position of the outdoor unit, the slot opening of the first card slot 1113 faces the outdoor heat exchanger to improve the aesthetics of the outdoor unit.

[0066] Since the outdoor unit includes the air duct network 10 in the above embodiments, it has all the beneficial effects of the air duct network 10, and will not be described in detail here.

[0067] In the specific content of the above specific implementation manners, the technical features can be combined arbitrarily without contradiction. For the sake of brevity of description, not all possible combinations of the above technical features are described. However, as long as the combinations of these technical features do not conflict, they should all be considered as within the scope described in this specification.

[0068] The specific content of the above specific implementation manners only expresses several implementation manners of the present utility model. Its description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model should be subject to the appended claims.

Claims

1. Air duct, comprising an air duct body (11), the air duct body (11) further comprising a mounting part (112) and a grille part (111), the grille part (111) being arranged on the outer periphery of the mounting part (112) and connected to the mounting part (112), and mesh holes for gas inlet and outlet being formed on the grille part (111). It is characterized in that The air duct further comprises a heating structure (12), the grille part (111) being provided with a first card slot (1113) cooperating with the heating structure (12), and the heating structure (12) being placed in the first card slot (1113) and being snap-connected to the grille part (111).

2. The air duct according to claim 1, characterized in that, The heating structure (12) is in interference fit with the first card slot (1113); or, first clamping blocks (11133) are arranged in the first card slot (1113), and the heating structure (12) is placed in the first card slot (1113) and is limited and fixed between the two first clamping blocks (11133).

3. The air duct according to claim 2, wherein The air duct further comprises a cover plate (13) detachably connected to the air duct body (11), and the cover plate (13) seals the notch of the first card slot (1113).

4. The air duct according to claim 3, characterized in that, A second card slot (133) is formed on the cover plate (13), and the first card slot (1113) further comprises second clamping blocks (11134) arranged on both sides of the notch of the first card slot (1113), and the second clamping blocks (11134) are snap-connected to the second card slot (133).

5. The air duct according to claim 4, characterized in that, The cover plate (13) abuts against the first clamping block (11133).

6. The air duct according to any one of claims 1-5, characterized in that The heating structure (12) comprises a heating main body arranged in a ring shape, both ends of the heating main body being connected with heating connection parts, the first card slot (1113) comprising a main body slot part (11131) and an extending slot part (11132), the main body slot part (11131) being arranged in a ring shape, the heating main body being snap-connected in the main body slot part (11131), the first end of the extending slot part (11132) being communicated with the main body slot part (11131), and the second end of the extending slot part (11132) extending to the outer edge of the air duct body (11); The heating connection part is led out of the air duct body (11) through the extending slot part (11132).

7. The air duct network according to claim 6, wherein The main body slot part (11131) is located in the middle of the grille part (111) in the radial direction.

8. The air duct according to claim 6, characterized in that, The air duct further comprises a temperature sensor, the temperature sensor (14) being placed in the main body slot part (11131), and the sensing end of the temperature sensor (14) passing out of the main body slot part (11131).

9. Panel, characterized in that, The panel comprises a panel body (20) and the air duct according to any one of claims 1-8, an installation opening (21) being formed on the panel body (20), and the air duct being detachably arranged in the installation opening (21).

10. Outdoor unit, including an outdoor heat exchanger and a side plate, characterized in that, The outdoor unit further comprises the panel according to claim 9, the panel and a plurality of the side plates enclosing to form a containing space, and the outdoor heat exchanger being located in the containing space.

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