An exhaust duct and a whole air conditioner

Abstract

The present application relates to a kind of exhaust duct and integrated air conditioner.The present application provides a kind of exhaust duct, comprising: flexible tube can be compressed or stretched, the flexible tube is spirally wound along the compression or stretching direction to form multiple turns of wave crest and multiple turns of wave trough, reinforcing rib is formed at least one of the multiple turns of wave crest in wave crest portion.The present application forms reinforcing rib structure on the outer surface of one or more turns of wave crest in multiple turns of spiral wave crest portion, so that the exhaust duct greatly reduces steel wire structure or does not need steel wire structure, under the premise of meeting original stretching, bending, compression performance, mold is simple, cost is lower, improve the compression ratio of exhaust duct, the length of the same exhaust duct after stretching is shorter after compression, reduce packing space.

Description

TECHNICAL FIELD

[0001] The present application relates to the air conditioning technical field, and particularly relates to an exhaust pipe and a whole air conditioner. BACKGROUND

[0002] For the whole mobile air conditioner, in order to realize indoor refrigeration, the hot air of the condenser must be discharged to the outdoor, so the whole mobile air conditioner in the current market is provided with an exhaust pipe to realize the hot air discharge.

[0003] In order to facilitate transportation and unloading, the exhaust pipe can occupy as little packaging space as possible. The exhaust pipe in the related art is a telescopic spiral sawtooth structure. The pipe body is spirally wound and bonded, the thickness of the pipe body is generally between 0.2 and 0.5 mm, and the material is a fold-resistant PP modified material. In order to ensure the strength of the air pipe, a steel wire is wrapped between the pipe film bonding surfaces to avoid that the air pipe is severely deformed due to heat when discharging the hot air.

[0004] However, the steel wire is wrapped by the inner and outer pipe bodies, and there are two layers of pipe bodies on the left and right of the steel wire, which leads to a limited folding (compression) amount and cannot meet the packaging space requirement. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide an exhaust pipe and a whole air conditioner.

[0006] The present application provides an exhaust pipe, comprising: a flexible pipe that is compressible or stretchable, the flexible pipe is spirally wound along a compression or stretching direction to form a plurality of wave crest portions and a plurality of wave trough portions, and a reinforcing rib is formed at at least one of the wave crest portions.

[0007] In some embodiments, the flexible pipe comprises a plurality of flexible pipe units, each of which comprises a starting segment and an ending segment, and the starting segment and the ending segment of each adjacent two flexible pipe units are partially overlapped and connected together.

[0008] In some embodiments, the wave crest of each flexible pipe unit is located between the starting segment and the ending segment, and the oblique edge of the starting segment and the oblique edge of the ending segment are overlapped and bonded together, wherein one end of the oblique edge of the starting segment is connected to the wave crest and the other end is a free end, and one end of the oblique edge of the ending segment is connected to the wave trough and the other end is a free end.

[0009] In some embodiments, each flexible pipe unit comprises at least one wave crest portion and at least one wave trough portion, and the reinforcing rib is formed on the entire outer surface of the wave crest portion.

[0010] In some embodiments, in the longitudinal sectional view of the flexible pipe, the cross-sectional width of the reinforcing rib is a and the cross-sectional height is b, and a / b = 1-4.

[0011] In some embodiments, the flexible pipe has a pipe body cross-section thickness t, wherein a / t = 2.5-5.

[0012] In some embodiments, the flexible pipe has a pipe body and a connecting point of the reinforcing rib, a side of the reinforcing rib located at the same side of the connecting point is a first side, and a vertical tangent of the first side to the connecting point has a transverse distance c, wherein 2c > t, and / or a > 2c + 2t > 3t.

[0013] In some embodiments, in the stretched state of the flexible pipe, a ratio of a pitch L of the flexible pipe to a peak height h is L / h = 4-10, wherein the pitch L of the flexible pipe is a transverse distance between two adjacent peak, and the peak height h is a longitudinal distance from a top of the reinforcing rib to a bottom of the peak of the flexible pipe.

[0014] In some embodiments, the flexible pipe unit comprises at least one first peak portion and at least two second peak portions, the first peak portion is located between the second peak portions, the reinforcing rib is formed on an outer circumferential surface of the first peak portion, the second peak portions are located in overlapping portions of the start section and the end section, and a wire is arranged between the overlapping portions.

[0015] In some embodiments, the flexible pipe comprises a plurality of pipe body units, and the plurality of pipe body units are integrally formed.

[0016] In some embodiments, the reinforcing rib and the flexible pipe are made of resin.

[0017] The application also provides an integrated air conditioner, comprising the exhaust pipe according to any one of the above embodiments.

[0018] Compared with the prior art, the application has the following beneficial effects:

[0019] The application forms the reinforcing rib structure on an outer circumferential surface of one or more peak portions of the plurality of spiral peak portions, so that the exhaust pipe greatly reduces or even eliminates the steel wire structure, the mold is simple, the cost is lower, the compression ratio of the exhaust pipe is improved, the size of the exhaust pipe after compression is shorter than that after stretching, and the packing space is reduced.

[0020] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the application. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. It is apparent that the accompanying drawings are only some embodiments of the application and based on these drawings, other drawings can be obtained by those skilled in the art without any creative effort. In the drawings:

[0022] Figure 1 is a schematic diagram of the exhaust duct structure (in the stretched state) according to an exemplary embodiment of the present application;

[0023] Figure 2 is a schematic diagram of the exhaust duct structure (in the compressed state) according to an exemplary embodiment of the present application; Figure 1 is a partial enlarged schematic diagram of the exhaust duct according to an exemplary embodiment of the present application;

[0024] Figure 3 is a schematic diagram of the flexible pipe unit structure according to an exemplary embodiment of the present application;

[0025] Figure 4 is a schematic diagram of the exhaust duct structure (in the stretched state) according to an exemplary embodiment of the present application;

[0026] Figure 5 is a schematic diagram of the exhaust duct structure (in the compressed state) according to an exemplary embodiment of the present application; Figure 4 is a partial enlarged schematic diagram of the exhaust duct according to an exemplary embodiment of the present application;

[0027] Figure 6 is a partial enlarged schematic diagram of the exhaust duct according to another exemplary embodiment of the present application;

[0028] Figure 7 is a schematic diagram of the flexible pipe unit structure according to another exemplary embodiment of the present application;

[0029] Figure 8 is a partial enlarged schematic diagram of the exhaust duct according to yet another exemplary embodiment of the present application;

[0030] Figure 9 is a schematic diagram of the flexible pipe unit structure according to yet another exemplary embodiment of the present application;

[0031] Figures 10-12 is a schematic diagram of the dimensions of the components of the exhaust duct structure according to an exemplary embodiment of the present application;

[0032] Figures 13-14 is a schematic diagram of the dimensions of the components of the exhaust duct structure according to an exemplary embodiment of the present application;

[0033] Figure 15 is a schematic diagram of the overall air conditioner structure according to an exemplary embodiment of the present application;

[0034] It should be noted that the drawings and the written description are not intended to limit the scope of the inventive concept in any way and are merely illustrating the inventive concept to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0035] In the description of the present application, it should be noted that the positions or location relationships indicated by the terms "inner", "outer" and the like are based on the positions or location relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application in terms of indicating or implying that the devices or elements referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application.

[0036] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "contact", "communication" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0037] In the related art, as shown in Figures 13-14 The exhaust pipe is a telescopic spiral sawtooth structure. The exhaust pipe is spirally wound and bonded by a pipe film. The thickness t of the pipe film is generally between 0.2-0.5mm. The material is a fold-resistant PP modified material. In order to ensure the strength of the air pipe, the steel wire is wrapped between the bonding surfaces of the pipe film (pipe body) to avoid serious deformation of the air pipe due to heat when the heat is exhausted.

[0038] The compression rate of the exhaust pipe in the compressed state Since the steel wire is wrapped by the inner and outer pipe films, the steel wire has two layers of pipe films on the left and right. The theoretical pitch L1 in the compressed state is D+4t. (L is the pitch of the exhaust pipe in the stretched state, L1 is the pitch of the exhaust pipe in the compressed state, D is the diameter of the steel wire, and t is the thickness of the pipe film).

[0039] The above scheme has the following technical problems:

[0040] 1. The exhaust pipe wraps the steel wire, the mold is complex, the cost is high, and the production efficiency is low;

[0041] 2. The steel wire is wrapped and bonded by the inner and outer pipe films to avoid displacement of the steel wire during use, but the theoretical pitch in the compressed state is larger and the compression rate is smaller, which cannot meet the packaging space requirement.

[0042] In view of the above problems, the present application provides a kind of exhaust duct with less steel wire or without steel wire, simple mould, low cost, connect through one bonding surface in one pitch, reduce processing time, high production efficiency.In addition, the compression ratio of the exhaust duct can be improved, and the length of the exhaust duct after stretching is the same, the size after compression is shorter, and the packing space is reduced.

[0043] The exhaust duct of the present application can be used in a whole air conditioner to exhaust the hot air of a condenser to the outside through the exhaust duct.

[0044] As shown in Figures 1-9 , the exhaust duct includes a flexible pipe 10 that can be compressed or stretched, the flexible pipe 10 is spirally wound along the compression or stretching direction to form multiple turns of wave crest 11 and multiple turns of wave trough 12, and a reinforcing rib is formed at at least one of the multiple turns of wave crest 11.

[0045] The material of the flexible pipe 10 can be resin, PP plastic or other material that has certain toughness and can be stretched and compressed. The flexible pipe 10 is spirally wound along the folding stretching direction and has a spiral wave crest 11 and a spiral wave trough 22. As shown in Figure 2 、 Figure 3 and Figure 5 , multiple turns of spiral wave crest 22 and wave trough 22 are formed on the flexible pipe 10, a reinforcing rib 20 can be formed on the outer surface of each turn of wave crest 22, or the reinforcing rib 20 can be formed on a part of the multiple turns of spiral wave crest 22. The material of the reinforcing rib 20 can be the same as that of the flexible pipe 10, such as resin, PP plastic or other material that has certain toughness and can be stretched and compressed, to ensure the same good stretching, bending and compression performance as the exhaust duct with steel wire structure in the related art.

[0046] The present application forms the reinforcing rib 20 structure on the outer surface of one or more turns of spiral wave crest 22, so that the exhaust duct greatly reduces the steel wire structure or does not need the steel wire structure, under the premise of meeting the original stretching, bending and compression performance, the mould is simple, the cost is lower, the compression ratio of the exhaust duct is improved, the length of the exhaust duct after stretching is the same, the size after compression is shorter, and the packing space is reduced.

[0047] In some embodiments, the flexible pipe 10 includes multiple flexible pipe units, which can be a split structure or an integrally formed structure.

[0048] In some examples, as shown in Figure 2 、 Figure 3 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9As shown, each flexible tube unit includes a starting segment 101 and a ending segment 102, and the starting segment and ending segment of each two adjacent flexible tube units are partially overlapped and connected together.

[0049] In other examples, multiple tube units are integrally molded to form a cylindrical spiral flexible tube.

[0050] In some embodiments, such as Figure 2 and Figure 3 The peak 11 of each flexible tube unit is located between the starting segment 101 and the ending segment 102. The inclined side of the starting segment 101 and the inclined side of the ending segment 102 overlap and are bonded together. One end of the inclined side of the starting segment 101 is connected to the peak 11, and the other end is a free end. One end of the inclined side of the ending segment 102 is connected to the trough 12, and the other end is a free end.

[0051] The exhaust duct of the present invention is bonded between two adjacent flexible duct units by one surface, that is, by bonding the inclined side of the starting section 101 to the inclined side of the ending section 102. Figure 2 As shown in the figure, compared with the related technology where two adjacent flexible tube units are glued together by two layers of edges, the compression ratio is greatly improved, the compressed size is shorter, and the packaging space is reduced.

[0052] In some embodiments, each flexible tube unit includes at least one crest portion 11 and at least one trough portion 12, with reinforcing ribs 20 formed on the entire outer circumferential surface of the crest portion.

[0053] In one example, such as Figure 2 , Figure 3 As shown, each flexible tube unit can be Z-shaped, comprising a ring of crests 11 and a ring of troughs 12. Reinforcing ribs 20 are formed on the outer surface of the crests 11. Each flexible tube unit includes a connected starting section 101, a middle section 103, and a ending section 102. Adjacent flexible tube units are bonded together by the overlapping portion of the inclined sides of their respective starting sections 101 and ending sections 102, forming a cylindrical threaded flexible tube 10. This embodiment illustrates a flexible tube unit comprising a ring of reinforcing ribs 20.

[0054] In another example, such as Figure 6 , Figure 7 As shown, each flexible tube unit may include two rings of crests 11 and two rings of troughs 12. Reinforcing ribs 20 are formed on the outer surface of each ring of crests 11, i.e., two rings of reinforcing ribs 20. Each flexible tube unit includes a connected starting segment 101, two intermediate segments 103, and a ending segment 102. Adjacent flexible tube units are bonded together by the overlapping portion of the inclined sides of their respective starting segments 101 and ending segments 102, forming a cylindrical threaded flexible tube 10. This embodiment illustrates a flexible tube unit containing two rings of reinforcing ribs 20.

[0055] In some embodiments, as Figures 10-12 In a longitudinal sectional view of the flexible duct 10, the cross-sectional width of the reinforcing rib 10 is a, and the cross-sectional height is b, where a / b = 1-4.

[0056] The reinforcing rib 20 can have a waist-shaped, rectangular, circular, oval, diamond-shaped, or the like structure, with a width dimension a and a height dimension b. The reinforcing rib 20 replaces the steel wire in the related art, and the ratio a / b of the width a to the height b of the reinforcing rib is preferably between 1-4, so as to strengthen the radial strength of the exhaust duct and ensure that the reinforcing rib 20 has the tensile, bending, and compressive properties of the steel wire in the related art.

[0057] Further, the thickness of the pipe body of the flexible duct 10 is t, where a / t = 2.5-5. The ratio a / t of the width a of the reinforcing rib 20 to the thickness t of the pipe membrane is between 2.5-5, so as to avoid the pipe membrane folding thickness being squeezed due to the reinforcing rib width being too small after compression, or the compression rate being affected due to the reinforcing rib width being too large.

[0058] Further, the connection point of the pipe body and the reinforcing rib of the flexible duct forms a first position, and the side of the reinforcing rib located on the same side of the first position is a first side, and the horizontal distance from the vertical tangent of the first side to the first position is c, where 2c > t, and / or a > 2c + 2t > 3t.

[0059] c is the minimum distance from the connection point of the pipe body and the reinforcing rib 20 of the flexible duct 20 to the side, because the bonding surface has two layers of thickness, in order to avoid the pipe body (pipe wall) being squeezed and affecting the compression rate in the compressed state, it is preferred that 2c > t, and further preferred that a > 2c + 2t > 3t, considering that there is a certain gap after the pipe membrane is folded after compression, and it is preferred that a = 4t = 1.4mm.

[0060] Further, as Figures 10-12 In the stretched state of the flexible duct, the ratio of the pitch L of the flexible duct to the peak height h is L / h = 4-10, where the pitch L of the flexible duct is the horizontal distance between two adjacent wave crests, and the peak height h is the vertical distance from the top of the reinforcing rib 20 to the bottom of the wave crest of the flexible duct 20. Within this ratio range, the peak height h can be effectively controlled to avoid excessive peak height h leading to exhaust duct noise.

[0061] The compression ratio of the exhaust duct in the related art and the exhaust duct of the present application is compared as follows:

[0062] As Figures 10-14 , assuming that the pitch L of the flexible duct in the related art and the flexible duct of the present application is the same, the pipe membrane thickness t is 0.35mm, and the steel wire diameter D = 1.2mm,

[0063] In the related art, the compression ratio of the exhaust duct with steel wire

[0064] Compression ratio of exhaust pipe of the present application

[0065] From the above two formulas, It can be seen that the compression ratio of the exhaust pipe of the present application is increased by 86% compared with the related art, that is, for the exhaust pipe with the same stretching length, the length of the exhaust pipe in the compressed state is shorter, which is more conducive to reducing the packing space and improving the cabinet loading capacity.

[0066] In some embodiments, as shown in Figure 8 、 Figure 9 The flexible pipe unit can include at least one first wave crest part 111 and at least two second wave crest parts 112, the first wave crest part 111 is located between the second wave crest parts 112, a reinforcing rib 20 is formed on the outer surface of the first wave crest part 111, the second wave crest part 112 is located in the overlapping part of the starting section 101 and the end section 112, and a metal wire 30 is arranged between the overlapping parts.

[0067] Specifically, the cross section of the flexible pipe unit is "W" shape, the vertex position of the middle spiral line (the first wave crest part 111) is the reinforcing rib 20 structure (the reinforcing rib is the same as the above scheme), and the left and right vertices (the second wave crest part 112) are the steel wire inner and outer adhesive layer structure, the distance between the center of the left and right steel wire 20 positioning groove and the center of the reinforcing rib is L1 and L2 respectively, wherein L1=L2. The pitch of the double spiral line is L, wherein L=L1+L2. One of the spiral lines is a steel wire structure, and the other is a reinforcing rib structure. Under the same stretching length, the steel wire usage can be reduced by half, and the product cost can be reduced. Because it has a reinforcing rib structure, according to the above scheme of the exhaust pipe without steel wire, the compression ratio of the exhaust pipe can be increased synchronously. At the same time, the steel wire structure has higher strength than the exhaust pipe without steel wire.

[0068] The present application also provides a whole air conditioner, as shown in Figure 15 The exhaust pipe according to any one of the above embodiments.

[0069] It can be further understood that "multiple" in the present disclosure means two or more, and other quantifiers are similar. "And / or" describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist together, and B exists alone. The character " / " generally represents that the front and rear associated objects have an "or" relationship. The singular forms "a", "said" and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0070] It will be further appreciated that terms, such as "first", "second", etc., are used to describe various information, but the information should not be limited to such terms. These terms are used only to distinguish one piece of information from another piece of information of the same type, and do not indicate a particular order or a particular importance. In fact, the expressions "first", "second", etc. can be used interchangeably. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information, without departing from the scope of the present disclosure.

[0071] It will be further understood that, although the operations of the presently disclosed embodiments are described in a particular, sequential order for convenient presentation, unless otherwise specified, the operations can be performed in any order so as to be properly and efficiently carried out. Accordingly, it is not required that all operations be performed in the described order, but rather, the order of certain operations can be rearranged.

[0072] Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure following, in general, the principles of the present disclosure and including such departures from the present disclosure that come within known use or custom in the art to which the present disclosure pertains. The specification and examples are to be regarded as illustrative only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

[0073] It is to be understood that the present disclosure is not limited to the precise construction described and as shown in the attached drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the present disclosure. The scope of the present disclosure is limited only by the claims that follow.

Claims

1. An exhaust duct, characterized in that, include: A compressible and stretchable flexible tube, wherein the flexible tube is spirally wound to form multiple turns of crests and multiple turns of troughs, and a reinforcing rib is formed at at least one of the multiple turns of crests. The flexible tube comprises multiple flexible tube units, each of which includes a starting segment and an ending segment. The starting and ending segments of each of the two adjacent flexible tube units are partially overlapped and connected together. In the longitudinal section view of the flexible tube, the cross-sectional width of the reinforcing rib is a, and the cross-sectional thickness of the flexible tube is t. The connection point between the flexible tube body and the reinforcing rib forms a first position. The surface of the reinforcing rib located on the same side as the first position is called the first surface. The horizontal distance from the vertical tangent of the first surface to the first position is c, where 2c > t and a > 2c + 2t > 3t.

2. The exhaust duct according to claim 1, characterized in that, The crest of each flexible tube unit is located between the starting segment and the ending segment. The inclined sides of the starting segment and the ending segment overlap and are bonded together. One end of the inclined side of the starting segment is connected to the crest, and the other end is a free end. One end of the inclined side of the ending segment is connected to the trough, and the other end is a free end.

3. The exhaust duct according to claim 2, characterized in that, Each flexible tube unit includes at least one ring of crests and at least one ring of troughs, with the reinforcing ribs formed at each of the crests.

4. The exhaust duct according to claim 3, characterized in that, In the longitudinal section view of the flexible tube, the cross-sectional height of the reinforcing rib is b, where a / b = 1 ~ 4.

5. The exhaust duct according to claim 4, characterized in that, a / t = 2.5 ~ 5.

6. The exhaust duct according to any one of claims 3-5, characterized in that, In the stretched state of the flexible tube, the ratio of the pitch L of the flexible tube to the peak height h is L / h = 4 ~ 10, where the pitch L of the flexible tube is the lateral distance between two adjacent peaks, and the peak height h is the longitudinal distance from the top of the reinforcing rib to the bottom peak of the flexible tube.

7. The exhaust duct according to claim 1, characterized in that, The flexible tube unit includes at least one first corrugated portion and at least two second corrugated portions, with the first corrugated portion located between the second corrugated portions, and the reinforcing ribs formed at the first corrugated portions. A second wave peak is formed at the overlapping portion of the starting segment and the ending segment, and a metal wire is provided at the second wave peak, the metal wire being wrapped between the overlapping portions.

8. The exhaust duct according to any one of claims 1-5 and 7, characterized in that, The flexible tube comprises multiple flexible tube units, which are integrally formed.

9. The exhaust duct according to claim 1, characterized in that, The reinforcing ribs and the flexible tube are made of resin.

10. An integrated air conditioner, characterized in that, include: The exhaust duct as described in any one of claims 1-9.

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