Air duct skeleton structure, air duct assembly and air conditioner

Abstract

The utility model provides an air duct framework structure, an air duct assembly and an air conditioner, and belongs to the field of air supply equipment. The air duct framework structure comprises an air duct shell, an air supply duct is formed in the air duct shell, an air duct opening communicated with the air supply duct is formed in the top and / or the bottom of the air duct shell, and a fan mounting cavity used for mounting an axial flow fan and a heat exchange component mounting cavity used for mounting a heat exchange component are further formed in the air duct shell; wherein an outer shell wall and an inner shell wall are formed on the air duct shell, the air duct shell is concavely provided with a notch from one side of the inner shell wall to one side of the outer shell wall, and the position of the notch corresponds to the position of the heat exchange component mounting cavity. Due to the fact that the notch design is carried out at the position of the heat exchange component installation cavity of the air duct shell, when the axial flow fan and the heat exchange component are installed in the air duct framework structure, the size of an air cavity defined between the heat exchange component and the wall of the air duct shell can be increased through the notch design, and therefore the effect of increasing the air supply amount is achieved.

Description

Technical Field

[0001] The present application relates to the field of air supply equipment, and more particularly, to an air duct skeleton structure, an air duct assembly, and an air conditioner. Background Art

[0002] In existing air duct components, when an axial flow fan is installed, the air blown by the axial flow fan will be discharged outside the air supply equipment after being heat-exchanged by a heat exchange component.

[0003] The air field of the axial flow fan is a rotating air field. When the air passes through the heat exchange component, the rotating air field will become a direct blowing air field, resulting in an increase in the air flow resistance, and then problems such as a decrease in the air speed and a large wind noise.

[0004] Especially when the air duct component equipped with an axial flow fan is arranged in a cabinet-type air conditioner, due to the high height and narrow width of the cabinet-type air conditioner, the above problems will be more serious. Summary of the Utility Model

[0005] Embodiments of the present application provide an air duct skeleton structure, an air duct assembly, and an air conditioner. By making a notch design at the position of the heat exchange component installation cavity of the air duct housing, when the axial flow fan and the heat exchange component are installed in the air duct skeleton structure, the notch design can increase the size of the air cavity defined between the heat exchange component and the air duct housing wall. The increase in the air cavity will increase the air volume, so that the rotational speed of the axial flow fan can be appropriately reduced to reduce the noise while ensuring the air supply volume.

[0006] The first aspect of the embodiments of the present utility model provides an air duct skeleton structure for being installed inside the housing of a cabinet-type air conditioner. The air duct skeleton structure includes:

[0007] An air duct housing, an air supply duct is formed inside the air duct housing, air inlets communicating with the air supply duct are formed at the top and / or bottom, a fan installation cavity for installing an axial flow fan, and a heat exchange component installation cavity for installing a heat exchange component are further formed inside the air duct housing;

[0008] Wherein the air duct housing forms an outer housing wall and an inner housing wall, and the air duct housing is recessed with a notch from the side of the inner housing wall to the side of the outer housing wall, and the notch position corresponds to the position of the heat exchange component installation cavity.

[0009] In the above technical solution, the air duct housing is further convexly provided with ribs from the side of the inner housing wall to the side of the outer housing wall, and the ribs correspond to the position of the fan installation cavity.

[0010] In the above technical solution, a plurality of notches are provided, and the plurality of notches are distributed in the height direction of the air duct housing.

[0011] In the above technical solution, a plurality of ribs are provided, and the plurality of ribs are distributed in the circumferential direction of the air duct housing.

[0012] In the above technical solution, the air duct housing includes a front housing and a rear housing, and the front housing and the rear housing are butted and cooperated to form the air duct housing;

[0013] Both the front housing and the rear housing are provided with notches and ribs.

[0014] In the above technical solution, the air duct openings include an upper air duct opening provided at the top of the air duct housing and a lower air duct opening provided at the bottom of the air duct housing;

[0015] The fan installation cavity includes an upper fan installation cavity formed near the upper air duct opening and a lower fan installation cavity formed near the lower air duct opening;

[0016] Wherein the heat exchange component installation cavity is located between the upper fan installation cavity and the lower fan installation cavity.

[0017] The second aspect of the embodiment of the present utility model provides an air duct assembly, which includes an axial flow fan, a heat exchange component, and the air duct skeleton structure provided in the first aspect of the embodiment;

[0018] Wherein the axial flow fan is installed in the fan installation cavity, and the heat exchange component is installed in the heat exchange component installation cavity

[0019] In the above technical solution, the axial flow fan includes an upper axial flow fan provided in the upper fan installation cavity and a lower axial flow fan provided in the lower fan installation cavity;

[0020] The heat exchange component includes a heat exchanger provided between the upper axial flow fan and the lower axial flow fan;

[0021] Wherein the heat exchanger has at least an opening facing the side of the upper axial flow fan and a heat exchange part that tends to be closed from the opening side to the side away from the upper axial flow fan; or the heat exchanger has at least an opening facing the side of the lower axial flow fan and a heat exchange part that tends to be closed from the opening side to the side away from the lower axial flow fan.

[0022] In the above technical solution, the heat exchange part corresponds to the notch part on the air duct housing and defines an air flow channel with a gradually shrinking trend between the heat exchange part and the air duct housing.

[0023] In the above technical solution, the axial flow fan includes a fan housing and axial flow fan blades provided inside the fan housing;

[0024] Wherein the fan housing and the axial flow fan blades can be controlled to be turned over as a whole to switch the positions of the air inlet side and the air outlet side of the axial flow fan, or the axial flow fan blades can be controlled to be turned over separately to switch the positions of the air inlet side and the air outlet side of the axial flow fan.

[0025] The third aspect of the embodiment of the present utility model provides an air conditioner, which includes the air duct assembly provided in the second aspect of the embodiment.

[0026] In the above technical solution, the air conditioner includes a housing. Inside the housing, there is an air duct assembly. An upper air outlet communicating with the upper air duct opening of the air duct assembly is formed at the top, and a lower air outlet communicating with the lower air duct opening of the air duct assembly is formed at the bottom.

[0027] A gap is formed between the air duct assembly disposed inside the housing and the housing.

[0028] In the above technical solution, the housing includes a front panel adapted to the shape of the front shell and a rear panel adapted to the shape of the rear shell. The front panel and the rear panel are butt-jointed and cooperate to form the housing.

[0029] The front panel and the front shell are correspondingly arranged and a gap is formed therebetween. The rear panel and the rear shell are correspondingly arranged and a gap is formed therebetween.

[0030] The air conditioner further includes a top cover disposed at the top of the housing and a chassis disposed at the bottom of the housing.

[0031] After adopting the above technical solution, the present utility model has the following beneficial effects compared with the prior art:

[0032] The embodiment of the present application provides an air duct skeleton structure, an air duct assembly and an air conditioner. By making a notch design at the position of the heat exchange component installation cavity of the air duct housing, when an axial flow fan and a heat exchange component are installed in the air duct skeleton structure, the notch design can increase the size of the air cavity defined between the heat exchange component and the wall of the air duct housing. The increase in the air cavity will make the air volume larger, so that the rotational speed of the axial flow fan can be appropriately reduced to reduce the noise while ensuring the air supply volume. Description of the Drawings

[0033] Figure 1 It is a schematic structural view of the front shell and the rear shell during assembly in the embodiment of the air duct skeleton structure of the present utility model;

[0034] Figure 2 It is a schematic structural view of the front shell and the rear shell after assembly in the embodiment of the air duct skeleton structure of the present utility model;

[0035] Figure 3 For Figure 1 It is a schematic structural view of the front shell in the embodiment from left, right, front and rear perspectives;

[0036] Figure 4 For Figure 1 It is a schematic structural view of the rear shell in the embodiment from left, right, front and rear perspectives;

[0037] Figure 5 It is an exploded structural view of the embodiment of the air duct assembly of the present utility model;

[0038] Figure 6Exploded structural schematic diagram of an embodiment of the air conditioner of the present utility model;

[0039] Figure 7 Structural schematic diagram of an embodiment of the air conditioner of the present invention during assembly;

[0040] Figure 8 Cross-sectional structural schematic diagram of an embodiment of the air conditioner of the present utility model after assembly;

[0041] Figure 9 is Figure 8 Enlarged structural schematic diagram of location A in the embodiment.

[0042] Wherein:

[0043] 100 - air duct housing; 100a - front shell; 100b - rear shell; 101 - fan installation cavity; 102 - heat exchange component installation cavity; 103 - notch; 104 - rib; 105 - upper air duct opening; 106 - lower air duct opening;

[0044] 200 - heat exchange component;

[0045] 301 - upper axial flow fan; 302 - lower axial flow fan;

[0046] 400 - housing; 400a - front panel; 400b - rear panel; 401 - upper air inlet; 402 - lower air inlet;

[0047] 500 - top cover;

[0048] 600 - chassis. Detailed implementation manners

[0049] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model.

[0050] Throughout the specification and claims, the following terms have at least the meanings explicitly associated herein, unless the context otherwise dictates. The meanings determined below do not necessarily limit the terms, but merely provide illustrative examples of the terms.

[0051] In the description of the present utility model, the phrase "in one embodiment" does not necessarily refer to the same embodiment, although it may. Similarly, as used herein, the phrase "in some embodiments", when used multiple times, does not necessarily refer to the same embodiment, although it may. As used herein, the term "or" is an inclusive "or" operator and is equivalent to the term "and / or", unless the context clearly dictates otherwise. The term "based on" is not exclusive and allows for additional factors not described, unless the context clearly dictates otherwise. The word "exemplary" means "serving as an example, instance, or illustration" herein. Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments. The scope of the present utility model is limited only by the scope of the appended claims, and any examples set forth in this specification are not intended to be limiting, but merely illustrate some of the many possible embodiments of the claimed utility model. The various embodiments provided by the present utility model should not be construed as limiting the scope of protection of the present utility model.

[0052] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 should not be construed as limiting the present utility model.

[0053] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0054] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; 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 internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0055] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0056] Background Introduction

[0057] In the existing air duct components, when an axial flow fan is installed, the air blown out by the axial flow fan will be discharged outside the air supply device after being heat exchanged by the heat exchange component.

[0058] The air field of the axial flow fan is a rotating air field. When the air passes through the heat exchange component, the rotating air field will become a direct blowing air field, resulting in an increase in the air flow resistance, and then problems such as a decrease in the air speed and a relatively large wind noise.

[0059] Especially when the air duct component equipped with the axial flow fan is arranged in a cabinet air conditioner, due to the relatively high height and narrow width of the cabinet air conditioner, the above problems will become more serious.

[0060] Based on this, as Figures 1-4 shown, in the first aspect of the air duct skeleton structure of the embodiment of the present application, the air duct skeleton structure includes:

[0061] An air duct housing 100, an air supply duct is formed inside the air duct housing 100, air duct openings communicating with the air supply duct are formed at the top and / or bottom, a fan installation cavity 101 for installing an axial flow fan is further formed inside the air duct housing 100, and a heat exchange component installation cavity 102 for installing a heat exchange component;

[0062] Wherein the air duct housing 100 forms an outer housing wall and an inner housing wall, the air duct housing 100 is recessed with a notch 103 from one side of the inner housing wall to the outer housing wall side, and the position of the notch 103 corresponds to the position of the heat exchange component installation cavity 102.

[0063] In the embodiment of the present application, through the notch 103 design at the position of the heat exchange component installation cavity of the air duct housing 100, when the axial flow fan and the heat exchange component are installed in the air duct skeleton structure, the notch design can increase the size of the air cavity defined between the heat exchange component and the air duct housing wall. The increase in the air cavity will increase the air volume, so that the rotational speed of the axial flow fan can be appropriately reduced to reduce the noise while ensuring the air supply volume.

[0064] In some embodiments, as Figures 1-4As shown, the air duct housing 100 further protrudes with ribs 104 from the inner housing wall side to the outer housing wall side, wherein the ribs 104 correspond to the position of the fan installation cavity 101.

[0065] In the embodiment of the present application, by providing ribs 104 corresponding to the fan installation cavity 101 on the air duct housing 100, the strength of the air duct housing 100 can also be increased, thereby strengthening the assembly strength of the axial flow fan.

[0066] In some embodiments, as Figures 1-4 shown, there are multiple notches 103, and the multiple notches 103 are distributed in the height direction of the air duct housing 100.

[0067] In the embodiment of the present application, by distributing multiple notches in the height direction and / or circumferential direction of the air duct housing 100, when the heat exchange component 200 is arranged in the air duct housing 100, the space between the heat exchange component 200 and the air duct housing 100 can be effectively increased, thereby effectively improving the air volume.

[0068] In some embodiments, as Figures 1-4 shown, there are multiple ribs 104, and the multiple ribs 104 are distributed in the circumferential direction of the air duct housing 100.

[0069] Since the outer peripheral side of the axial flow fan 100 is arc-shaped, in the embodiment of the present application, by providing multiple ribs 104 in the circumferential direction of the air duct housing 100, the assembly strength of the axial flow fan can be effectively improved in the circumferential direction of the axial flow fan.

[0070] In some embodiments, as Figures 1-4 shown, the air duct housing 100 includes a front housing 100a and a rear housing 100b, and the front housing 100a and the rear housing 100b are butt-jointed and cooperate to form the air duct housing 100;

[0071] Both the front housing 100a and the rear housing 100b are provided with notches 103 and ribs 104.

[0072] That is, the air duct housing 100 in the embodiment of the present application is of a split structure, and notches 103 and ribs 103 are provided on each split component, so that it is convenient for the assembly of the axial flow fan and the heat exchange component 200, and can also improve the assembly strength of the axial flow fan after assembly and increase the space between the heat exchange component 200 and the air duct housing 100 after assembly.

[0073] In some embodiments, as Figures 1-4 shown, the air duct openings include an upper air duct opening 105 provided at the top of the air duct housing 100 and a lower air duct opening 106 provided at the bottom of the air duct housing 100;

[0074] The fan installation cavity 101 includes an upper fan installation cavity formed near the upper air duct opening 105 and a lower fan installation cavity formed near the lower air duct opening 106;

[0075] The heat exchange component installation cavity 102 is located between the upper fan installation cavity and the lower fan installation cavity.

[0076] That is, an upper fan installation cavity, a heat exchange component installation cavity, and a lower fan installation cavity are sequentially formed from top to bottom inside the air duct framework structure in the embodiment of the present application, making full use of the height space of the air duct framework structure, so that the air flow can flow from top to bottom or from bottom to top, effectively shortening the flow path of the air flow inside the air duct framework structure.

[0077] At the same time, by providing notches and ribs on the air duct framework, on the one hand, setting notches on the air duct framework can increase the air delivery volume while shortening the flow path of the air flow inside the air duct framework structure, and on the other hand, setting ribs on the air duct framework can also improve the assembly strength of the axial flow fan. It should be noted that since the upper fan installation cavity in the air duct framework structure is far from the ground, the axial flow fan may be unstable after being installed in the upper fan installation cavity, and the stability of the axial flow fan installed in the fan installation cavity can be effectively improved by providing ribs corresponding to the upper fan installation cavity.

[0078] Further, as Figure 5 shown, in the second aspect of the embodiment of the present application, an air duct assembly is further provided, which includes an axial flow fan, a heat exchange component 200, and the air duct framework structure provided in the first aspect of the embodiment;

[0079] The axial flow fan 200 is installed in the fan installation cavity 101, and the heat exchange component 200 is installed in the heat exchange component installation cavity 102.

[0080] In some embodiments, the axial flow fan includes an upper axial flow fan 301 installed in the upper fan installation cavity and a lower axial flow fan 302 installed in the lower fan installation cavity;

[0081] The heat exchange component 200 includes a heat exchanger disposed between the upper axial flow fan 301 and the lower axial flow fan 302;

[0082] The heat exchanger has at least an opening facing the side of the upper axial flow fan 301 and a heat exchange portion that tends to close from the opening side away from the upper axial flow fan 301; or the heat exchanger has at least an opening facing the side of the lower axial flow fan 302 and a heat exchange portion that tends to close from the opening side away from the lower axial flow fan 302.

[0083] Preferably, the heat exchanger in the embodiment of the present application is a V-shaped heat exchanger with an opening facing the bottom of the upper axial flow fan 301.

[0084] In the embodiments of the present application, by making the above settings for the heat exchanger, it is possible to ensure the air flow heat exchange effect while avoiding a large resistance when the air flow is flowing.

[0085] In some embodiments, such as Figure 8 and Figure 9 shown, the heat exchange part corresponds to the notch 103 part on the air duct housing 100, and a gradually shrinking air flow channel is defined between the heat exchange part and the air duct housing 100.

[0086] That is, in the embodiments of the present application, by providing the notch 103 on the air duct housing 100, when the heat exchange component 200 is installed, the channel area of the air flow channel can be effectively increased, so as to achieve the effects of reducing wind resistance and increasing air volume.

[0087] In some embodiments, the axial flow fan includes a fan housing and axial flow fan blades arranged inside the fan housing;

[0088] wherein the fan housing and the axial flow fan blades can be controlled to be turned over as a whole to switch the positions of the air inlet side and the air outlet side of the axial flow fan, or the axial flow fan blades can be controlled to be turned over separately to switch the positions of the air inlet side and the air outlet side of the axial flow fan.

[0089] That is, the air supply component in the embodiments of the present application can achieve a reversible air supply effect. Specifically, it can be achieved in two ways. One is to achieve reversible air supply by reversing the axial flow fan blades, and the second is to achieve reversible air supply by reversing the axial flow fan as a whole.

[0090] And the heat exchange component 200 in the present application is arranged between the upper and lower axial flow fans, and the notch 103 on the air duct housing 100 corresponds to the heat exchange component 200. Therefore, no matter in which direction the air supply component supplies air, the notch 103 provided on the air duct housing 100 can achieve the effect of increasing the air supply volume of the air supply component. It should be noted that when the air supply volume of the air supply component is increased by the setting of the notch 103, the rotation speed of the axial flow fan can be correspondingly reduced, so as to reduce the noise of the air supply component during air supply on the premise of ensuring the air supply volume.

[0091] Furthermore, as Figures 6-9 shown, in the third aspect of the embodiments of the present application, an air conditioner is further provided, which includes the air duct assembly provided in the second aspect of the embodiments.

[0092] In some embodiments, such as Figures 6-9 shown, the air conditioner is a cabinet air conditioner. The air conditioner includes a housing 400. Inside the housing 400, an air duct assembly is provided. An upper air outlet 401 communicating with the upper air duct opening 105 of the air duct assembly is formed at the top, and a lower air outlet 402 communicating with the lower air duct opening 106 of the air duct assembly is formed at the bottom;

[0093] A gap is formed between the air duct assembly disposed inside the cabinet 400 and the cabinet 400.

[0094] Preferably, the gap between the front panel 400a and the front housing 100a is between 10 mm and 30 mm, and the gap between the rear panel 400b and the rear housing 100b is between 10 mm and 30 mm.

[0095] By providing the above-mentioned air duct assembly, the air conditioner in the embodiment of the present application can achieve the reversible up-and-down air supply effect of the air conditioner. At the same time, by providing a gap between the cabinet 400 of the air conditioner and the air duct assembly, it is possible to avoid the generation of condensate water on the cabinet 400 of the air conditioner, and the setting of this gap will not cause the air conditioner to be too large in size.

[0096] In some embodiments, as Figures 6-9 shown, the cabinet 400 includes a front panel 400a adapted to the shape of the front housing and a rear panel 400b adapted to the shape of the rear housing. The front panel 400a and the rear panel 400b are butt-jointed and cooperate to form the cabinet 400;

[0097] Wherein the front panel 400a and the front housing 100a are correspondingly arranged and a gap is formed therebetween, and the rear panel 400b and the rear housing 100b are correspondingly arranged and a gap is formed therebetween;

[0098] The air conditioner further includes a top cover 500 disposed on the top of the cabinet 400 and a chassis 600 disposed on the bottom of the cabinet 400.

[0099] That is, the cabinet 400 of the air conditioner in the embodiment of the present application is also of a split structure, which is more convenient when installing the air conditioner.

[0100] It should be noted that since the overall center of gravity of the floor-standing air conditioner is relatively high, when the strength of the air conditioner is insufficient, the whole machine is likely to shake during the opening process of the air conditioner. By designing the front and rear housings and the front and rear panels into a sandwich structure, the strength of the whole machine can be greatly enhanced, the shaking of the whole machine can be effectively avoided, and the breakage during the dropping of the whole machine packaging can also be effectively avoided.

[0101] Further, in order to more clearly understand the structural composition, assembly and working principle of the air conditioner in the embodiment of the present application, the following will be specifically described in conjunction with Figures 1-9 :

[0102] In the embodiment of the present application, a skeleton structure of an air conditioner with reversible up-and-down air supply based on an axial flow fan is designed. The air conditioner is composed of a rear panel 400b, a rear housing 100b, a front housing 100a, a front panel 400a, an upper axial flow fan 301, a top cover 500, a heat exchange component 200, a lower axial flow fan 302, a chassis 600, etc., as Figure 6 shown.

[0103] It should be noted that the front-back and up-down relationships defined in the embodiments of the present application are only relative relationships. For example, Figure 6 as shown, the lower air outlet of the air conditioner is formed on the rear panel 400b in the figure. In this case, the rear panel is the panel facing the user side. If the lower air outlet of the air conditioner is formed on the front panel 400a, then the front panel 400a is the panel facing the user side at this time.

[0104] The rear panel 400b and the rear housing 100b are designed at the rear of the air conditioner, the front housing 100a and the front panel 400a are designed at the front of the air conditioner. The upper axial flow fan 301 and the lower axial flow fan 302 based on the axial flow fan are designed in the middle of the closed cavity of the front and rear housings of the air conditioner. The heat exchange component 200 is also designed in the middle of the closed cavity of the front and rear housings of the air conditioner, and is designed in the middle of the upper axial flow fan 301 and the lower axial flow fan 302 in the height direction. The top cover 500 and the chassis 600 are designed at the top and bottom in the height direction of the air conditioner.

[0105] For example, Figure 7 as shown, during the assembly process, the front panel 400a and the front housing 100a are first assembled together, and then the heat exchange component 200 is assembled on the rear housing 100b. The upper axial flow fan 301 and the lower axial flow fan are assembled on both sides of the front panel 400a, located at the upper and lower positions of the whole machine. Then the chassis 600, the rear housing 100b, and the rear panel 400b are assembled in sequence, and finally the top cover 500 is assembled.

[0106] The rear housing 100b of the air conditioner is designed to be assembled behind the rear panel 400b. The surface of the rear housing 100b is designed with a notch 103 and a rib 104 to enhance the strength of the rear housing 100b. At the same time, the notch is in the air cavity, which can achieve the noise reduction function. For example, Figures 1-4 as shown. The front housing 100a of the air conditioner is designed to be assembled behind the front panel 400a, and is also designed with a notch 103 and a rib 104 to enhance the strength of the front housing 100a. At the same time, the notch 103 is also in the air cavity, which can achieve the noise reduction function. For example, Figures 1-4 as shown. The ribs 104 of the front housing 100a and the rear housing 100b are designed at the positions where the upper axial flow fan 301 and the lower axial flow fan 302 are installed, which can strengthen the assembly strength of the upper and lower fans. The notch 103 is designed at the assembly position of the heat exchange component 200, which can effectively reduce the noise generated by the resistance of the air passing through the heat exchange component 200.

[0107] The rear shell 100b and the front shell 100a form a closed cavity, which enables reversible air outlet under the action of the upper axial flow fan 301 and the lower axial flow fan 302. The rear panel 400b and the front panel 400a can achieve the decorative effect of the appearance of the air conditioner. At the same time, there is a gap of more than 10 mm between the rear shell 100b, the front shell 100a, the rear panel 400b and the front panel 400a. The surfaces of the front and rear shells can be designed to paste sponges or design thermal insulation materials such as foams for heat preservation to prevent condensate from forming on the front and rear panels. The assembly process is as follows: the front shell 100a is first assembled on the front panel 400a, then the rear shell 100b is assembled, and finally the rear panel 400b is assembled, forming a sandwich-type assembly structure, as Figure 7 shown.

[0108] When the air conditioner is turned on for cooling, since the front and rear shells form a closed cavity, under the action of the upper and lower axial flow fans, the air enters from the lower air outlet, passes through the heat exchange component and becomes cold air, and is blown out from the upper air outlet, thus realizing the reversible air supply technology. There is a gap of more than 10 mm between the front and rear shells and the front and rear panels. At the same time, the front and rear shells are designed with pasted sponges or foams. When the air becomes cold air, the cold quantity cannot radiate to the surfaces of the front and rear panels, which can effectively prevent condensate from forming on the front and rear panels. When the air conditioner is turned on for heating, the cold air enters from the upper air outlet, passes through the heat exchange component and then becomes hot air, and is blown out from the lower air outlet. The heat insulation structure of the front and rear shells can effectively carry out heat insulation to prevent heat from being transferred to the injection molded parts, causing the injection molded parts to expand and contract due to heat, resulting in abnormal noises.

[0109] After the air volume test, this skeleton structure method can increase the air volume, and the measured air volume can reach more than 1300 cubic meters per hour, as shown in the following figure.

[0110]

[0111]

[0112] In the above embodiments of the present application, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. The steps shown in the relevant flowcharts can be executed in a computer system such as a set of computer executable instructions. And although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than here. In other words, the step order described in the foregoing embodiments is only an example, and a reasonable adjustment of the step order based on the content of the embodiments of the present application is also within the protection scope of the embodiments of the present application.

[0113] The serial numbers or the order of introduction of the embodiments of the present application are only for description and do not represent the superiority or inferiority of the embodiments.

[0114] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", 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 present utility model. In this specification, the schematic representations of the above terms do not necessarily refer 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, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0115] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A duct skeleton structure, characterized in that: The air duct skeleton structure comprises: An air duct housing (100), wherein an air supply duct is formed inside the air duct housing (100), and an air duct opening communicating with the air supply duct is formed at the top and / or the bottom, and the air duct housing (100) further comprises a fan installation cavity (101) for installing an axial flow fan, and a heat exchange component installation cavity (102) for installing a heat exchange component; The air duct housing (100) is formed with an outer housing wall and an inner housing wall, and the air duct housing (100) is provided with a recess (103) from one side of the inner housing wall to one side of the outer housing wall, and the position of the recess (103) corresponds to the position of the heat exchange component installation cavity (102).

2. The air duct skeleton structure according to claim 1, characterized in that: The air duct housing (100) is also provided with ribs (104) protruding from one side of the inner housing wall to one side of the outer housing wall, wherein the ribs (104) correspond in position to the fan installation cavity (101).

3. The air duct skeleton structure according to claim 1, characterized in that: A plurality of the recesses (103) are provided, and the plurality of recesses (103) are distributed in the height direction of the air duct housing (100) and / or in the circumferential direction of the air duct housing (100).

4. The air duct skeleton structure according to claim 2, characterized in that: A plurality of the ribs (104) are provided, and the plurality of the ribs (104) are distributed in the circumferential direction of the air duct housing (100).

5. The air duct skeleton structure according to claim 4, characterized in that: The air duct housing (100) comprises a front housing (100a) and a rear housing (100b), and the front housing (100a) and the rear housing (100b) are butt-jointed to form the air duct housing (100); The front shell (100a) and the rear shell (100b) are both provided with the notch (103) and the rib (104).

6. The air duct skeleton structure according to any one of claims 1 to 4, characterized in that: The air duct opening comprises an upper air duct opening (105) arranged at the top of the air duct housing (100) and a lower air duct opening (106) arranged at the bottom of the air duct housing (100); The fan installation cavity (101) comprises an upper fan installation cavity formed near the upper air duct opening (105), and a lower fan installation cavity formed near the lower air duct opening (106); The heat exchange component installation cavity (102) is located between the upper fan installation cavity and the lower fan installation cavity.

7. An air duct assembly, characterized in that: It comprises an axial flow fan, a heat exchange component (200) and an air duct skeleton structure according to any one of claims 1 to 6; The axial flow fan is installed in the fan installation cavity (101), and the heat exchange component (200) is installed in the heat exchange component installation cavity (102).

8. The air duct assembly according to claim 7, characterized in that: The axial flow fan comprises an upper axial flow fan (301) arranged in an upper fan installation cavity and a lower axial flow fan (302) arranged in a lower fan installation cavity; The heat exchange component (200) comprises a heat exchanger arranged between an upper axial flow fan (301) and a lower axial flow fan (302); The heat exchanger at least has an opening toward the upper axial flow fan (301), and a heat exchange portion that tends to close from the opening toward the side away from the upper axial flow fan (301); or the heat exchanger at least has an opening toward the lower axial flow fan (302), and a heat exchange portion that tends to close from the opening toward the side away from the lower axial flow fan (302).

9. The air duct assembly according to claim 8, characterized in that: The heat exchange portion corresponds to a portion of the notch (103) on the air duct housing (100), and defines a gradually contracting air flow channel between the heat exchange portion and the air duct housing (100).

10. The air duct assembly according to claim 8, characterized in that: The axial flow fan comprises a fan housing, and axial flow wind blades arranged inside the fan housing; The fan housing and the axial flow fan blades can be controlled to flip as a whole to switch the positions of the air inlet side and the air outlet side of the axial flow fan, or the axial flow fan blades can be controlled to flip individually to switch the positions of the air inlet side and the air outlet side of the axial flow fan.

11. An air conditioner, characterized in that: The invention comprises the air duct assembly according to any one of claims 7 to 10.

12. The air conditioner according to claim 11, characterized in that: The air conditioner is a cabinet air conditioner, comprising a casing (400), wherein the air duct assembly is arranged inside the casing (400), an upper air duct opening (401) communicating with an upper air duct opening (105) of the air duct assembly is formed at the top, and a lower air duct opening (402) communicating with a lower air duct opening (106) of the air duct assembly is formed at the bottom; A gap is formed between the air duct assembly arranged inside the casing (400) and the casing (400).

13. The air conditioner according to claim 12, characterized in that: The housing (400) comprises a front panel (400a) adapted to the shape of the front housing and a rear panel (400b) adapted to the shape of the rear housing, and the front panel (400a) and the rear panel (400b) are butt-jointed to form the housing (400); The front panel (400a) and the front shell (100a) are arranged correspondingly and a gap is formed between the two, and the rear panel (400b) and the rear shell (100b) are arranged correspondingly and a gap is formed between the two; The air conditioner further comprises a top cover (500) arranged at the top of the casing (400) and a bottom plate (600) arranged at the bottom of the casing (400).

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