Air duct structure, air conditioning cabinet and air conditioner

Abstract

The present invention discloses an air duct structure, an air conditioning cabinet and an air conditioner, wherein the air duct structure comprises: a first air shell and a second air shell, wherein the rear end of the second air shell is connected to the front end of the first air shell so as to jointly construct an air outlet cavity, wherein the first air shell defines an inlet of the air cavity, and the second air shell defines an outlet of the air cavity, and the first air shell and the second air shell are both integrally formed parts. According to the air duct structure of an embodiment of the present invention, an integrally formed first air shell and a second air shell are respectively arranged in the front and rear directions of the air duct structure, and an air cavity with an inlet and an outlet is constructed by the first air shell and the second air shell, thereby improving the structural strength of the air duct structure, reducing the assembly process of the air duct structure, and reducing the production cost of the air duct structure.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air duct structure, an air conditioning cabinet and an air conditioner. Background Art

[0002] The duct structure of a single-flow cabinet is large in size and complex in structure, and cannot be integrally molded. The industry usually splits the duct structure into multiple parts on the left and right sides, and then assembles them. However, this method is prone to deformation, and sheet metal parts are often required to increase the structural strength. The assembly is cumbersome due to the large number of parts. In addition, small parts are easily affected by thermal expansion and contraction and are prone to noise and other problems. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide an air duct structure with a simple structure, few assembly steps and low production cost.

[0004] The present invention also provides an air conditioning cabinet having the above-mentioned air duct structure, which has a simple structure, fewer assembly steps and low production cost.

[0005] The present invention also provides an air conditioner having the above air conditioning cabinet, which has a simple structure, fewer assembly steps and low production cost.

[0006] According to the first aspect of the present invention, the air duct structure includes: a first wind shell and a second wind shell, wherein the rear end of the second wind shell is connected to the front end of the first wind shell to jointly construct an air outlet cavity, wherein the first wind shell defines an inlet of the wind cavity, and the second wind shell defines an outlet of the wind cavity, and the first wind shell and the second wind shell are both integrally formed parts.

[0007] According to the air duct structure of the embodiment of the present invention, a first wind shell and a second wind shell that are integrally formed are respectively arranged in the front and rear directions of the air duct structure, and an air cavity with an inlet and an outlet is constructed by the first wind shell and the second wind shell, thereby improving the structural strength of the air duct structure, reducing the assembly process of the air duct structure, and reducing the production cost of the air duct structure.

[0008] According to some embodiments of the present invention, the first wind housing comprises a first end plate and a second end plate which are arranged opposite to each other up and down, and a first volute and a second volute are arranged between the first end plate and the second end plate.

[0009] In an optional embodiment, a first volute tongue is provided at the front end of the first volute, and the first volute tongue includes a straight portion and a bent portion connected to each other, and the straight portion extends into the wind cavity.

[0010] In an optional example, the second wind shell includes: a second volute tongue connected to the front end of the bending portion and a third volute connected to the front end of the second volute.

[0011] In a further optional example, the plane where the second volute tongue is located is parallel to the plane where the outer end of the bending portion is located.

[0012] In a further optional example, a plurality of cross beams are provided between the second volute tongue and the third volute casing.

[0013] In an optional embodiment, the air duct structure further includes: a crossflow wind wheel, wherein the crossflow wind wheel is arranged between the first end plate and the second end plate and is located in the wind cavity.

[0014] In an optional example, the second wind shell is detachably disposed on the first wind shell.

[0015] In an optional example, the lower end of the second wind shell is supported on the second end plate.

[0016] In a further optional example, the distance d between the crossflow impeller and the straight portion is between 6 and 10 mm.

[0017] The air-conditioning cabinet according to an embodiment of the present invention includes the air duct structure of the above-mentioned embodiment. Since the air duct structure according to the embodiment of the present invention has a simple structure, high assembly efficiency and low manufacturing cost, the air-conditioning cabinet according to the embodiment of the present invention has a simple structure, high assembly efficiency and low manufacturing cost.

[0018] According to some embodiments of the present invention, the air conditioning cabinet also includes: an evaporator, the evaporator is connected to the first air housing, the first air housing has a first end plate and a second end plate arranged opposite to each other up and down, and the two ends of the evaporator are connected to the first end plate and the second end plate.

[0019] The air conditioner according to the second aspect of the present invention includes the air conditioning cabinet according to the above-mentioned embodiment. Since the air conditioning cabinet according to the embodiment of the present invention has a simple structure, high assembly efficiency and low manufacturing cost, the air conditioner according to the embodiment of the present invention has a simple structure, high assembly efficiency and low manufacturing cost.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 is a three-dimensional diagram of an air duct structure according to some embodiments of the present invention;

[0023] Figure 2 is a partial cross-sectional view of an air conditioning cabinet according to some embodiments of the present invention;

[0024] Figure 3 is a cross-sectional view at an angle of the air duct structure according to some embodiments of the present invention;

[0025] Figure 4 is a cross-sectional view of the air duct structure according to some embodiments of the present invention from another angle;

[0026] Figure 5 is a three-dimensional diagram of a first air housing in an air duct structure according to some embodiments of the present invention;

[0027] Figure 6 is a three-dimensional diagram of a second air housing in an air duct structure according to some embodiments of the present invention;

[0028] Figure 7 yes Figure 3 Enlarged view of point A in the middle.

[0029] Reference numerals:

[0030] Air conditioning cabinet 100;

[0031] Air duct structure 10;

[0032] The first wind housing 11; the first end plate 111; the second end plate 112; the first volute 113; the first volute tongue 114; the straight portion 1141; the bent portion 1142; the second volute 115;

[0033] The second wind housing 12; the second volute tongue 121; the third volute 122; the cross beam 123; the partition 124;

[0034] Air cavity 13; inlet 131; outlet 132;

[0035] Crossflow impeller 14;

[0036] Evaporator 20. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0038] Refer to the following Figure 1-Figure 7 The air duct structure 10 according to an embodiment of the present invention is described. The air duct structure 10 is applied to an air conditioning cabinet 100 .

[0039] like Figure 1 Combination Figure 2 As shown, the air duct structure 10 includes a first air shell 11 and a second air shell 12, the rear end of the second air shell 12 is connected to the front end of the first air shell 11 to jointly construct an air outlet cavity 13, wherein the first air shell 11 defines an inlet 131 of the air cavity 13, and the second air shell 12 defines an outlet 132 of the air cavity 13, and the first air shell 11 and the second air shell 12 are both integrally formed parts. It should be noted that the "front end" and "rear end" are relative to the air outlet side of the air conditioner cabinet 100, the end close to the air outlet side is the front end, and the end away from the air outlet side is the rear end.

[0040] That is, the air duct structure 10 of the embodiment of the air duct structure 10 includes two parts, a front part and a rear part. The first air shell 11 located on the rear side of the air duct structure 10 has an inlet 131, that is, the cold air or hot air is introduced into the air cavity 13 through the first air shell 11, and the second air shell 12 located on the front side of the air duct structure 10 has an outlet 132, that is, the cold air or hot air is led out of the air cavity 13 through the second air shell 12.

[0041] In order to improve the overall structural strength and assembly efficiency of the air duct structure 10, the first air shell 11 and the second air shell 12 are both integrally formed parts. In this way, during the assembly process of the air duct structure 10, the second air shell 12 can be directly assembled on the first air shell 11 to complete the assembly of the air duct structure 10. In addition, in order to ensure the flatness of the flow channel in the air cavity 13, the front end of the first air shell 11 and the rear end of the second air shell 12 are smoothly transitioned, so that the airflow can be prevented from forming a vortex in the air cavity 13 and the flow noise of the airflow can be reduced.

[0042] In short, according to the air duct structure 10 of the embodiment of the present invention, an integrally formed first wind shell 11 and a second wind shell 12 are respectively arranged in the front and rear directions of the air duct structure 10, and an air cavity 13 with an inlet 131 and an outlet 132 is constructed by the first wind shell 11 and the second wind shell 12, thereby improving the structural strength of the air duct structure 10, reducing the assembly process of the air duct structure 10, and reducing the production cost of the air duct structure 10.

[0043] In some embodiments of the present invention, Figure 1 and Figure 5 As shown, the first wind housing 11 comprises a first end plate 111 and a second end plate 112 which are arranged opposite to each other in the upper and lower parts, and a first volute 113 and a second volute 115 which are arranged between the first end plate 111 and the second end plate 112. Figure 5 The upper end of the first volute 113 and the other end of the second volute 115 (such as Figure 5In other words, the first volute 113 and the second volute 115 are formed integrally on the first end plate 111 and the second end plate 112, respectively, so as to improve the structural strength of the first wind housing 11 and avoid the first volute 113 and the second volute 115 in the longitudinal direction (i.e. Figure 5 Deformation occurs in the up and down directions.

[0044] In addition, the first end plate 111 and the second end plate 112 can also play a role in sealing the upper and lower ends of the air cavity 13 to prevent the air flow from flowing out from the upper and lower ends.

[0045] In an optional embodiment, if Figure 2 Combination Figure 7 As shown, the front end of the first volute 113 is provided with a first volute tongue 114, wherein the first volute tongue 114 includes a straight portion 1141 and a bent portion 1142 connected to each other, and the straight portion 1141 extends into the wind cavity 13. In this way, the airflow can flow along the inner surface of the straight portion 1141 toward the outlet 132 of the air duct structure 10, and flow out of the wind cavity 13 along the inner surface of the bent portion 1142. Since the first volute tongue 114 is integrally formed on the first volute 113, the structure of the first volute tongue 114 is stable, so that the distance between the first volute tongue 114 and the crossflow impeller 14 in the wind cavity 13 can remain relatively unchanged, thereby maintaining the airflow in the wind cavity 13 stable and reducing the generation of airflow noise.

[0046] In further optional examples, such as Figure 2-Figure 4 As shown, the second air housing 12 includes: a second volute tongue 121 connected to the front end of the bending portion 1142 and a third volute 122 connected to the front end of the second volute 115. That is, the second volute tongue 121 and the third volute 122 extend the flow channel of the air cavity 13 together to guide the airflow to a set area. That is, the air channel where the second air housing 12 is located, one side (such as Figure 3 In other words, the second wind shell 12 includes both a volute structure and a volute tongue structure. Thus, the overall structural strength of the second wind shell 12 is high. Furthermore, since the second volute tongue 121 of the second wind shell 12 is connected to the first volute tongue 114 and the third volute 122 of the second wind shell 12 is connected to the second volute 115, the overall structural stability of the air duct structure 10 is improved.

[0047] In a further optional example, the plane where the second volute tongue 121 is located is parallel to the plane where the outer end of the bending portion 1142 is located. That is, the flow path surface of the second volute tongue 121 and the flow path surface of the bending portion 1142 are parallel to each other, for example, the flow path surface of the second volute tongue 121 and the flow path surface of the bending portion 1142 are located on the same plane, or the flow path surface of the second volute tongue 121 and the flow path surface of the bending portion 1142 are staggered and arranged in parallel, so that the airflow can be ensured to flow more smoothly.

[0048] In a further optional example, in order to improve the structural stability of the second wind housing 12, a plurality of cross beams 123 are provided between the second volute tongue 121 and the third volute 122. Figure 3 and Figure 6 As shown, in the up and down directions, the outlet 132 of the air cavity 13 is provided with a plurality of cross beams 123 .

[0049] In some optional embodiments, partitions 124 are further provided at the upper and lower ends of the second air shell 12 , and the partitions 124 prevent the air flow from flowing away from the air cavity 13 .

[0050] In other embodiments of the present invention, Figure 3-Figure 5 As shown, the air duct structure 10 further includes: a crossflow wind wheel 14. The crossflow wind wheel 14 is arranged between the first end plate 111 and the second end plate 112 and is located in the wind cavity 13. That is, the crossflow wind wheel 14 is arranged on the first wind housing 11, and the two ends of the crossflow wind wheel 14 are respectively connected to the first end plate 111 and the second end plate 112, and the displacement of the crossflow wind wheel 14 in the axial direction is limited by the first end plate 111 and the second end plate 112, and the cold air or hot air is introduced into the wind cavity 13 by the crossflow wind wheel 14, and sent out through the wind cavity 13.

[0051] The inventor found in the product design process that the distance d between the straight portion 1141 and the crossflow impeller 14 is between 6 and 10 mm. This can ensure smooth airflow and reduce airflow noise. Since the first volute tongue 114 is integrally formed on the first volute 113, compared with the structural design of assembling the volute tongue on the volute alone, the structure of the first volute tongue 114 in the embodiment of the present invention is relatively stable and not easy to deform. Therefore, the distance between the straight portion 1141 and the crossflow impeller 14 can be ensured to be relatively unchanged.

[0052] In order to facilitate the disassembly and assembly of the crossflow impeller 14, the second wind housing 12 is detachably arranged on the first wind housing 11. In this way, the maintenance and replacement of the crossflow impeller 14 can be facilitated. For example, the second wind housing 12 can be screwed to the first wind housing 11, or the second wind housing 12 and the first wind housing 11 are connected by a clamping method, or the first wind housing 11 and the second wind housing 12 are connected by screws and clamping methods at the same time.

[0053] In a further optional embodiment, the lower end of the second wind housing 12 is supported on the second end plate 112. That is, the second end plate 112 bears the weight of the second wind housing 12, so that the connection structure between the first wind housing 11 and the second wind housing 12 is more solid, and the air duct structure 10 is more stable.

[0054] The air conditioning cabinet 100 according to an embodiment of the present invention includes the air duct structure 10 of the above-mentioned embodiment. Since the air duct structure 10 according to the embodiment of the present invention has a simple structure, high assembly efficiency and low manufacturing cost, the air conditioning cabinet 100 according to the embodiment of the present invention has a simple structure, high assembly efficiency and low manufacturing cost.

[0055] In some embodiments of the present invention, Figure 2 As shown, the air conditioning cabinet 100 includes an evaporator 20, and the evaporator 20 is connected to the first air housing 11. In other words, the evaporator 20 is wrapped around the inlet 131 of the air cavity 13, so that the airflow can fully pass through the evaporator 20 before entering the air cavity 13, thereby improving the cooling or heating efficiency.

[0056] In addition, the first air housing 11 has a first end plate 111 and a second end plate 112 which are arranged opposite to each other in the upper and lower directions, and both ends of the evaporator 20 are connected to the first end plate 111 and the second end plate 112. That is, the upper and lower ends of the air cavity 13 are sealed by the first end plate 111 and the second end plate 112, and the upper and lower ends of the evaporator 20 are sealed, so that the airflow can enter the air cavity 13, thereby improving the cooling or heating efficiency.

[0057] The air conditioner according to the embodiment of the present invention includes the air conditioning cabinet of the above-mentioned embodiment. Since the air conditioning cabinet 100 according to the embodiment of the present invention has a simple structure, high assembly efficiency and low manufacturing cost, the air conditioner according to the embodiment of the present invention has a simple structure, high assembly efficiency and low manufacturing cost.

[0058] Other components of the air conditioner are familiar to those skilled in the art and will not be described in detail here.

[0059] In the description of the present invention, it should be understood that the terms "front", "rear", "left", "right", "up", "down", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0060] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0062] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air duct structure, characterized in that: include: A first wind shell and a second wind shell, wherein the rear end of the second wind shell is connected to the front end of the first wind shell to jointly form an air outlet cavity, wherein the first wind shell defines an inlet of the air cavity, and the second wind shell defines an outlet of the air cavity, and the first wind shell and the second wind shell are both integrally formed parts; The first wind housing comprises a first end plate and a second end plate which are arranged opposite to each other in upper and lower directions, and a first volute and a second volute are arranged between the first end plate and the second end plate; A first volute tongue is provided at the front end of the first volute, the first volute tongue comprises a straight portion and a bent portion connected to each other, the straight portion extends into the air cavity; The second wind housing comprises: a second volute tongue connected to the front end of the bent portion and a third volute connected to the front end of the second volute; The second wind shell is detachably arranged on the first wind shell.

2. The air duct structure according to claim 1, characterized in that: The plane where the second volute tongue is located is parallel to the plane where the outer end of the bending portion is located.

3. The air duct structure according to claim 1, characterized in that: A plurality of cross beams are provided between the second volute tongue and the third volute casing.

4. The air duct structure according to claim 1, characterized in that: The lower end of the second air shell is supported on the second end plate.

5. The air duct structure according to claim 1, characterized in that: Also includes: A crossflow wind wheel is arranged between the first end plate and the second end plate and is located in the wind cavity.

6. The air duct structure according to claim 5, characterized in that: The distance d between the crossflow impeller and the straight portion is between 6 and 10 mm.

7. An air conditioning cabinet, characterized in that: include: The air duct structure according to any one of claims 1 to 6.

8. The air conditioning cabinet according to claim 7, characterized in that: Also includes: The evaporator is connected to the first air housing, the first air housing has a first end plate and a second end plate arranged opposite to each other up and down, and both ends of the evaporator are connected to the first end plate and the second end plate.

9. An air conditioner, characterized in that: An air conditioning cabinet comprising any one of claims 7-8.

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