Fresh air pipe and air conditioner

Abstract

The fresh air pipe comprises a pipe body, the pipe body comprises a round pipe section, a gradual change pipe section and an oval pipe section which are sequentially arranged, the round pipe section is suitable for being connected with the fresh air inlet end of an indoor unit, and the oval pipe section is suitable for being arranged in a wall hole in a penetrating mode. According to the fresh air pipe and the air conditioner, the fresh air inlet amount can be increased, and the requirement for indoor and outdoor air exchange is well met.

Description

Technical Field

[0001] This application relates to the technical field of air conditioners, and particularly relates to a fresh air duct and an air conditioner. Background Art

[0002] A fresh air air conditioner is an air conditioner with a fresh air function, which can keep the indoor air fresh. In the related art, outdoor fresh air is introduced into the indoor environment through a fresh air duct, but the fresh air intake of the fresh air duct is relatively low, and it cannot well meet the need for indoor and outdoor air exchange. Utility Model Content

[0003] The embodiments of this application provide a fresh air duct and an air conditioner, which can improve the fresh air intake and better meet the need for indoor and outdoor air exchange.

[0004] On the one hand, the embodiments of this application provide a fresh air duct, including a pipe body. The pipe body includes a circular pipe section, a tapered pipe section, and an elliptical pipe section arranged in sequence. The circular pipe section is adapted to be connected to the fresh air inlet end of the indoor unit, and the elliptical pipe section is adapted to pass through a wall hole.

[0005] In some embodiments, the fresh air duct further includes a wind cap, and the wind cap covers one end opening of the elliptical pipe section away from the tapered pipe section.

[0006] In some embodiments, the wind cap has a conical spiral line structure. The bottom of the conical spiral line structure is wound around the outer peripheral wall of the elliptical pipe section, and the top of the conical spiral line structure covers one end opening of the elliptical pipe section away from the tapered pipe section.

[0007] In some embodiments, the wind cap is provided with barb portions. The barb portions are bent at the bottom of the conical spiral line structure, and the ends of the barb portions are spaced from the outer peripheral wall of the elliptical pipe section.

[0008] In some embodiments, reinforcing ribs are provided on the outer peripheral wall of the fresh air duct.

[0009] In some embodiments, the reinforcing ribs extend along a spiral line on the outer peripheral wall of the fresh air duct.

[0010] In some embodiments, the inner peripheral surface of the fresh air duct is a smooth surface.

[0011] In some embodiments, the fresh air duct is an extrusion molding pipe.

[0012] On the other hand, the embodiments of this application provide an air conditioner, including an indoor unit and the fresh air duct provided in any of the above embodiments. The indoor unit is provided with a fresh air inlet end, and the circular pipe section of the fresh air duct is connected to the fresh air inlet end.

[0013] In some embodiments, the indoor unit includes a fresh air module and an adapter portion that are connected to each other, the fresh air inlet end is formed on the adapter portion, and the round pipe section of the fresh air duct is inserted into the adapter portion.

[0014] The embodiment of the present application sets the wall-penetrating pipe section of the fresh air duct as an elliptical pipe section with an elliptical shape. When the elliptical pipe section and other connecting components such as a connecting wire tube are inserted into the wall hole together, the elliptical pipe section and the other connecting components can be more closely abutted, and the gap area between the elliptical pipe section 13 and other connecting components can be reduced, so that the elliptical pipe section 13 can better utilize the gap area between other connecting components and the wall hole 41, and then effectively and fully utilize the area in the wall hole that is not occupied by other connecting components to arrange the elliptical pipe section, and correspondingly increase the space occupancy rate of the elliptical pipe section 13 in the wall hole 41 and the flow cross-sectional area of ​​the wall-penetrating pipe section of the fresh air duct, thereby increasing the fresh air intake volume of the fresh air duct; at the same time, the circular pipe section and the gradient pipe section are set, so that the circular pipe section can be adaptively matched and connected with the fresh air inlet end of the indoor unit, and the gradient pipe section is used to smoothly connect the circular pipe section to ensure the structural reliability of the fresh air duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is an exploded structural diagram of a fresh air duct provided in some embodiments of the present application;

[0017] Figure 2 is a cross-sectional structural diagram of a fresh air duct provided in some embodiments of the present application;

[0018] Figure 3 yes Figure 2 The enlarged structural diagram of the Zhongxin air duct at point M;

[0019] Figure 4 It is a projection structure diagram of a fresh air duct provided in some embodiments of the present application and inserted into a wall hole;

[0020] Figure 5 is an axonometric structural diagram of a hood of a fresh air duct provided in some embodiments of the present application;

[0021] Figure 6 This is an axonometric structural diagram of the fresh air duct provided in some embodiments of the present application when connected to the fresh air module.

[0022] Description of main component symbols:

[0023] 1 - Fresh air duct, 10 - Duct body, 11 - Circular duct section, 12 - Gradual change duct section, 13 - Oval duct section, 14 - Reinforcing rib, 20 - Air cap, 21 - Barbed part, 201 - Fresh air module, 202 - Adapter head, 2021 - Fresh air inlet end, 3 - Connecting conduit, 4 - Wall, 41 - Wall hole. Detailed implementation manner

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to 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 skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0025] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It 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 thus cannot be understood as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0026] "A and / or B" includes the following three combinations: only A, only B, and the combination of A and B.

[0027] The use of "suitable for" or "configured to" in the present application means open and inclusive language, which does not exclude devices that are suitable for or configured to perform additional tasks or steps. In addition, the use of "based on" means open and inclusive, because a process, step, calculation or other action "based on" one or more of the described conditions or values may in practice be based on additional conditions or values beyond the described ones.

[0028] In this application, the term "exemplary" is used to mean "serving as an example, illustration, or instance". Any embodiment described as "exemplary" in this application is not necessarily to be construed as more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. In the following description, details are set forth for the purpose of explanation. It should be understood that those of ordinary skill in the art can recognize that this application can be implemented without these specific details. In other instances, well-known structures and processes are not elaborated in detail to avoid obscuring the description of this application with unnecessary details. Therefore, this application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed in this application.

[0029] In the related art, in addition to the fresh air duct needing to be passed through the wall hole, connection line ducts connecting the indoor unit and the outdoor unit, such as refrigerant pipes, drain pipes, and electrical connection lines, are also passed through the wall hole together. The wall hole is a through hole pre-opened in the wall, and the shape of the wall hole is generally circular, for example, it can be a circular hole with a diameter of 63 mm. When the above-mentioned connection line ducts are passed through the wall hole, the area in the wall hole not occupied by the above-mentioned connection line ducts is not a regular circular shape but presents an irregular shape. And the fresh air duct in the related art is usually a circular pipe, so there is a large gap area between the fresh air duct and the above-mentioned connection line ducts, and it is not possible to make good use of the area in the wall hole not occupied by the above-mentioned connection line ducts to introduce fresh air, resulting in a low fresh air intake volume of the fresh air duct and not being able to well meet the need for indoor and outdoor air exchange.

[0030] As Figures 1 to 4 shown, on the one hand, an embodiment of this application provides a fresh air duct 1, which is applicable to an air conditioner, can improve the fresh air intake volume, and can better meet the need for indoor and outdoor air exchange.

[0031] The fresh air duct 1 includes a pipe body 10. The pipe body 10 includes a circular pipe section 11, a tapered pipe section 12, and an elliptical pipe section 13, and the circular pipe section 11, the tapered pipe section 12, and the elliptical pipe section 13 are arranged in sequence. As the name implies, the circular pipe section 11 has a circular cross-section, and the elliptical pipe section 13 has an elliptical cross-section; and the tapered pipe section 12 smoothly transitions from the circular pipe section 11 to the elliptical pipe section 13, that is, one end of the tapered pipe section 12 close to the circular pipe section 11 has a circular cross-section shape, and one end close to the elliptical pipe section 13 has an elliptical cross-section shape, and smoothly changes from the circular cross-section shape to the elliptical cross-section shape. The circular pipe section 11 is adapted to be connected to the fresh air inlet end 2021 of the indoor unit, and the elliptical pipe section 13 is adapted to be passed through the wall hole 41 and extend to the outside.

[0032] Compared with related technologies, in the embodiment of the present application, the fresh air duct 1 is provided by setting the wall-piercing pipe section as an elliptical pipe section 13 with an elliptical shape. When the elliptical pipe section 13 and other connecting components such as the connecting pipe 3 are inserted into the wall hole 41 together, the elliptical pipe section 13 and other connecting components can be more closely abutted, reducing the gap area between the elliptical pipe section 13 and other connecting components, so that the elliptical pipe section 13 can make better use of the gap area between other connecting components and the wall hole 41. Furthermore, the area in the wall hole 41 that is not occupied by the above-mentioned connecting pipe 3 can be effectively and fully utilized to arrange the elliptical pipe section 13, correspondingly increasing the space occupancy rate of the elliptical pipe section 13 in the wall hole 41 and the flow cross-sectional area of the wall-piercing pipe section of the fresh air duct 1, thereby increasing the fresh air intake volume of the fresh air duct 1; at the same time, by setting the circular pipe section 11 and the tapered pipe section 12, the circular pipe section 11 can be adaptively and matchedly connected to the fresh air inlet end 2021 of the indoor unit, and the tapered pipe section 12 is used to smoothly connect the circular pipe section 11 to ensure the structural reliability of the fresh air duct 1.

[0033] In some embodiments, the fresh air duct 1 may further include a wind cap 20. The wind cap 20 covers the opening at one end of the elliptical pipe section 13 that is far from the tapered pipe section 12, that is, covers the air inlet of the fresh air duct 1. The wind cap 20 can protect the air inlet of the fresh air duct 1 to prevent outdoor rats, insects and other foreign objects from entering the fresh air duct 1. Here, the wind cap 20 can be integrally formed with the pipe body 10 of the fresh air duct 1, or can be independently formed and then installed on the pipe body 10 of the fresh air duct 1.

[0034] The shape of the wind cap 20 can be determined according to actual needs, and the embodiment of the present application does not limit this. As Figures 1 to 5 shown, in some examples, the wind cap 20 can have a conical spiral line structure; the conical spiral line structure is a line structure formed by extending along a conical spiral line, generally in the shape of a cone with a top and a bottom. The bottom of the conical spiral line structure is wound around the outer peripheral wall of the elliptical pipe section 13, and the top of the conical spiral line structure covers the opening at one end of the elliptical pipe section 13 that is far from the tapered pipe section 12. By setting the wind cap 20 as a conical spiral line structure, the bottom of the conical spiral line structure can be used to more reliably fix the elliptical pipe section 13, and the top of the conical spiral line structure can be used to more reliably cover and protect the opening of the elliptical pipe section 13. The material of the wind cap 20 can be determined according to actual needs, and the embodiment of the present application does not limit this; exemplarily, the wind cap 20 can be made of a metal material, and correspondingly can be a metal wire structure formed by extending along a conical spiral line.

[0035] Exemplarily, the wind cap 20 may be provided with a barb portion 21. The barb portion 21 may be bent and formed at the bottom of the conical spiral line structure, specifically, may be bent and formed at the end of the wire structure, and the end of the barb portion 21 may be spaced from the outer peripheral wall of the elliptical pipe section 13. By the above arrangement, when winding the bottom of the wind cap 20 having the conical spiral line structure around the outer peripheral wall of the elliptical pipe section 13 or removing the wind cap 20, it is possible to avoid the end of the barb portion 21 contacting the outer peripheral wall of the elliptical pipe section 13, thereby avoiding the relatively sharp end from scratching the elliptical pipe section 13, and thus reducing the disassembly and assembly risk.

[0036] In some embodiments, reinforcing ribs 14 may be provided on the outer peripheral wall of the fresh air pipe 1. The reinforcing ribs 14 can be used to increase the structural strength of the fresh air pipe 1 and improve the mechanical properties of the fresh air pipe 1. The shape of the reinforcing ribs can be determined according to actual needs, and the embodiments of the present application do not limit this. In some examples, the reinforcing ribs 14 may be arranged to extend along a spiral line on the outer peripheral wall of the fresh air pipe 1. For example, they may extend from the elliptical pipe section 13 along the spiral line to the circular pipe section 11, so that the reinforcing ribs 14 have a spiral structure. In other examples, the reinforcing ribs 14 may be straight ribs.

[0037] In some embodiments, the inner peripheral surface of the fresh air pipe 1 may be a smooth surface. By setting the inner peripheral surface of the fresh air pipe 1 as a smooth surface, the cross-sectional area of the flow passage inside the fresh air pipe 1 can be increased to a large extent, avoiding the inner wall of the fresh air pipe 1 from obstructing the fresh air intake, thereby ensuring that the fresh air pipe 1 has a high fresh air intake volume.

[0038] The material of the fresh air pipe 1 can be determined according to actual needs, and the embodiments of the present application do not limit this. In some embodiments, the fresh air pipe 1 may be a plastic pipe. The forming process of the fresh air pipe 1 can be determined according to actual needs, and the embodiments of the present application do not limit this. In some embodiments, the fresh air pipe 1 may be an extrusion molding pipe; here, a plastic whole pipe with a circular pipe structure can be first formed by an extrusion process, and then a local section of the plastic whole pipe is subjected to a molding process to press the above local section from a circular shape into an elliptical shape and a gradually changing shape to respectively form the elliptical pipe section 13 and the gradually changing pipe section 12, thereby obtaining an extrusion molding pipe. By setting the fresh air pipe 1 as an extrusion molding pipe, it can be ensured that the inner peripheral surface of the fresh air pipe 1 is a smooth surface, and the elliptical pipe section 13 can be quickly pressed and formed, thereby ensuring the fresh air intake volume of the fresh air pipe 1 and reducing the manufacturing difficulty of the fresh air pipe 1.

[0039] As Figure 6As shown, on the other hand, an embodiment of the present application provides an air conditioner, which includes an indoor unit and a fresh air duct 1 provided in any of the above embodiments, the indoor unit is provided with a fresh air inlet end 2021, and the circular pipe section 11 of the fresh air duct 1 is connected to the fresh air inlet end 2021. Here, the indoor unit can be provided with a fresh air module 201, and the fresh air module 201 is provided with the above-mentioned fresh air inlet end 2021. The type of air conditioner can be determined according to actual needs, and for example, a wall-mounted air conditioner, a cabinet air conditioner, a window air conditioner, etc. with a fresh air function can be used, and the embodiment of the present application does not limit this. The air conditioner provided in the embodiment of the present application has the above-mentioned fresh air duct 1, which can effectively increase the fresh air intake volume and better meet the needs of indoor and outdoor air exchange.

[0040] In some embodiments, the indoor unit includes a fresh air module 201 and an adapter portion 202 connected to each other. A fresh air inlet end 2021 is formed on the adapter portion 202, and the round pipe section 11 of the fresh air duct 1 is inserted into the adapter portion 202. Here, the adapter portion 202 may be provided with a plug hole in the shape of a round hole, and the plug hole is suitable for plugging with the round pipe section 11, so that the fresh air duct 1 and the fresh air inlet end 2021 of the indoor unit are fixedly connected.

[0041] The fresh air duct and air conditioner provided in the embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A new air duct, characterized in that: It comprises a pipe body, which comprises a circular pipe section, a gradient pipe section and an elliptical pipe section which are arranged in sequence. The circular pipe section is suitable for being connected to the fresh air inlet end of the indoor unit, and the elliptical pipe section is suitable for being inserted into a wall hole.

2. The fresh air duct according to claim 1, characterized in that: The new air duct also includes a hood, which covers an opening at one end of the elliptical pipe section away from the gradient pipe section.

3. The fresh air duct according to claim 2, characterized in that: The hood has a conical spiral structure, the bottom of which is wound around the outer peripheral wall of the elliptical tube segment, and the top of which covers an opening at one end of the elliptical tube segment away from the gradient tube segment.

4. The fresh air duct according to claim 3, characterized in that: The hood is provided with a barb portion, which is bent and formed at the bottom of the conical spiral structure, and the end of the barb portion is spaced apart from the outer peripheral wall of the elliptical tube segment.

5. The fresh air duct according to claim 1, characterized in that: The outer peripheral wall of the fresh air duct is provided with reinforcing ribs.

6. The fresh air duct according to claim 5, characterized in that: The reinforcing ribs are extended along a spiral line and arranged on the outer peripheral wall of the fresh air duct.

7. The fresh air duct according to claim 1, characterized in that: The inner peripheral surface of the fresh air duct is a smooth surface.

8. The fresh air duct according to claim 1, characterized in that: The fresh air duct is an extruded profiled tube.

9. An air conditioner, characterized in that: It comprises an indoor unit and the fresh air duct according to any one of claims 1 to 8, wherein the indoor unit is provided with a fresh air inlet end, and a circular pipe section of the fresh air duct is connected to the fresh air inlet end.

10. The air conditioner according to claim 9, characterized in that: The indoor unit comprises a fresh air module and an adapter part which are connected to each other, the fresh air inlet end is formed on the adapter part, and the round pipe section of the fresh air duct is inserted into the adapter part.

Images