Air duct assembly, indoor unit and air conditioner

Abstract

The utility model discloses an air duct assembly, an indoor unit and an air conditioner, the air duct assembly comprises a cross beam, a lower volute, an upper volute and a connecting piece, and the cross beam is provided with a first fixing hole; one end of the lower volute is connected to the cross beam, a second fixing hole is formed in the end, close to the cross beam, of the lower volute, and the second fixing hole directly faces the first fixing hole; the upper volute and the lower volute are connected in a clamped mode, a third fixing hole is formed in the end, close to the cross beam, of the upper volute, and the third fixing hole is right opposite to the second fixing hole. The connecting piece is arranged in the third fixing hole, the second fixing hole and the first fixing hole in a penetrating mode so as to connect the upper volute, the lower volute and the cross beam. The connecting piece is arranged in the third fixing hole, the second fixing hole and the third fixing hole in a penetrating mode, the connecting stability between the lower volute and the upper volute can be improved, and meanwhile the connecting stability between the cross beam and the lower volute is also improved.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning equipment technology, and in particular to an air duct assembly, an indoor unit, and an air conditioner. Background Technology

[0002] An air conditioner, also known as an air conditioning unit, consists of four parts: a refrigeration (heating) circulation system, an air circulation and ventilation system, an electrical control system, and a housing. It is a small air conditioning unit that maintains a certain temperature, humidity, airflow speed, cleanliness, and freshness of the air in the regulated space.

[0003] Generally, split-type air conditioners are equipped with air duct components. The upper and lower volutes on the air duct components are usually connected and fixed by buckles on the left and right sides of the volutes. Due to the need for disassembly and assembly, the plastic buckles have a certain degree of elasticity. However, during the drop transportation of the air conditioner, the buckles on the left and right sides are subjected to elastic deformation under force, which can easily cause the buckles to come off and the upper and lower volutes to separate, thus causing the air conditioner to malfunction. At present, the common solution is to stick masking tape to the upper and lower volutes. This solution has low production efficiency and the tape is not firmly attached, resulting in poor reliability. Utility Model Content

[0004] The main objective of this utility model embodiment is to provide a duct assembly, indoor unit, and air conditioner, aiming to improve the technical problem of unstable connection between the upper and lower volutes in the duct assembly in the prior art.

[0005] An embodiment of this utility model provides an air duct assembly, which includes:

[0006] A crossbeam, wherein a first fixing hole is provided on the crossbeam;

[0007] The lower volute has one end connected to the crossbeam, and a second fixing hole is provided at the end of the lower volute adjacent to the crossbeam, with the second fixing hole facing the first fixing hole.

[0008] The upper volute is engaged with the lower volute, and a third fixing hole is provided at one end of the upper volute adjacent to the crossbeam, the third fixing hole being directly opposite the second fixing hole;

[0009] A connector is provided, which passes through the third fixing hole, the second fixing hole and the first fixing hole, to connect the upper volute, the lower volute and the crossbeam.

[0010] In some embodiments of this utility model, the upper volute is provided with one of a first protrusion and a first recess at one end near the crossbeam, and the lower volute is provided with the other of the first protrusion and the first recess. When the upper volute and the lower volute are connected, the first protrusion and the first recess are connected in a concave-convex manner.

[0011] In some embodiments of this utility model, the upper volute is provided with buckles at both ends, and the lower volute is provided with buckle grooves at both ends that engage with the buckles.

[0012] Alternatively, the upper volute may be provided with the snap-fit ​​grooves at both ends, and the lower volute may be provided with the snap-fit ​​at both ends;

[0013] The buckle engages with the buckle slot to engage the upper volute with the lower volute.

[0014] In some embodiments of this utility model, the lower volute includes a first volute portion and a base portion. The first volute portion is disposed on the base portion, the base portion is connected to the crossbeam, the second fixing hole is disposed on the base portion, and the first volute portion is engaged with the upper volute.

[0015] In some embodiments of this utility model, the upper volute includes a second volute portion and an extension portion. The extension portion is disposed at one end of the second volute portion near the base portion, and the third fixing hole is disposed on the extension portion. The second volute portion is engaged with the first volute portion.

[0016] In some embodiments of this utility model, the base portion is provided with a plurality of connection holes, and each connection hole is connected to the crossbeam by a screw.

[0017] In some embodiments of this utility model, the connecting member is a screw.

[0018] In some embodiments of this utility model, a boss is provided at one end of the upper volute adjacent to the crossbeam. The boss is close to the third fixing hole, the connector passes through the third fixing hole, and the boss abuts against one side of the connector.

[0019] In some embodiments of this utility model, an indoor unit is also provided, which includes the above-described air duct assembly.

[0020] In some embodiments of this utility model, an air conditioner is also provided, which includes the indoor unit described above.

[0021] The present invention provides a duct assembly, an indoor unit, and an air conditioner. The duct assembly has a first fixing hole, a second fixing hole, and a third fixing hole facing each other on the crossbeam, the lower volute, and the upper volute, respectively, and the connector passes through the third fixing hole, the second fixing hole, and the third fixing hole to improve the connection stability between the lower volute and the upper volute, and also to improve the connection stability between the crossbeam and the lower volute. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the lower volute of one embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the upper volute of one embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of an air duct assembly according to an embodiment of the present invention;

[0026] Figure 4 for Figure 3 A schematic diagram of the method at point A in the middle;

[0027] Figure 5 This is a schematic diagram showing the connection of the upper volute, lower volute, crossbeam, and connecting member according to one embodiment of the present invention.

[0028] Reference numerals: 10, air duct assembly; 100, crossbeam; 101, first fixing hole; 200, lower volute; 201, second fixing hole; 202, snap fastener; 210, first volute portion; 220, base portion; 221, first recessed portion; 300, lower volute; 301, third fixing hole; 302, snap fastener groove; 310, second volute portion; 320, extension portion; 321, first protrusion portion; 322, boss portion; 400, connector. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] like Figures 1-5 As shown, this utility model provides a duct assembly 10, including a crossbeam 100, a lower volute 200, an upper volute, and a connector 400. The crossbeam 100 has a first fixing hole 101. One end of the lower volute 200 is connected to the crossbeam 100, and a second fixing hole 201 is provided at the end of the lower volute 200 adjacent to the crossbeam 100, with the second fixing hole 201 directly opposite to the first fixing hole 101. The upper volute is snapped into the lower volute 200, and a third fixing hole 301 is provided at the end of the upper volute adjacent to the crossbeam 100, with the third fixing hole 301 directly opposite to the second fixing hole 201. The connector 400 passes through the third fixing hole 301, the second fixing hole 201, and the first fixing hole 101 to connect the upper volute, the lower volute 200, and the crossbeam 100.

[0034] In this context, "directly facing" means that the central axes of the two components are on the same straight line. For example, the first fixing hole 101 and the second fixing hole 201 are directly facing each other, that is, the central axes of the first fixing hole 101 and the second fixing hole 201 coincide with each other.

[0035] The crossbeam 100 is generally a plate-like structure, the lower volute 200 is detachably connected to the crossbeam 100, and the upper volute is connected to the lower volute 200.

[0036] It is understandable that the air duct assembly 10 has a first fixing hole 101, a second fixing hole 201, and a third fixing hole 301 facing each other on the crossbeam 100, the lower volute 200, and the upper volute, respectively, and the connector 400 passes through the third fixing hole 301, the second fixing hole 201, and the third fixing hole 301 to improve the connection stability between the lower volute 200 and the upper volute, and also to improve the connection stability between the crossbeam 100 and the lower volute 200.

[0037] In some embodiments, one of the first protrusion 321 and the first recess 221 is provided at one end of the upper volute near the crossbeam 100, and the other of the first protrusion 321 and the first recess 221 is provided on the lower volute 200. When the upper volute and the lower volute 200 are connected, the first protrusion 321 and the first recess 221 are connected in a concave-convex manner.

[0038] It is understandable that by setting a concave-convex fit structure on the upper and lower volutes, the upper and lower volutes 200 can be quickly positioned to improve assembly efficiency, and at the same time, the connection efficiency of the upper and lower volutes 200 can also be improved.

[0039] Specifically, the first protrusion 321 is a positioning post, and the positioning post is provided at one end of the upper volute near the crossbeam 100. The first recess 221 is provided in the lower volute 200 and is a positioning hole. When the upper volute and the lower volute 200 are connected, the positioning post is inserted into the positioning hole.

[0040] Furthermore, the positioning hole is a through hole.

[0041] In some embodiments, the upper volute is provided with a buckle 202 at both ends, and the lower volute 200 is provided with a buckle groove 302 at both ends that engages with the buckle 202. The buckle 202 engages with the buckle groove 302 so that the upper volute and the lower volute 200 are engaged.

[0042] In other embodiments, the upper volute is provided with a snap-fit ​​groove 302 at both ends, and the lower volute 200 is provided with a snap-fit ​​202 at both ends. The snap-fit ​​202 engages with the snap-fit ​​groove 302 to engage the upper volute and the lower volute 200.

[0043] It is understandable that the upper volute and the lower volute 200 are connected by a snap fastener 202 and a snap fastener groove 302 to form an air duct structure with a accommodating cavity.

[0044] In some embodiments, the lower volute 200 includes a first volute portion 210 and a base portion 220. The first volute portion 210 is disposed on the base portion 220, the base portion 220 is connected to the crossbeam 100, a second fixing hole 201 is disposed on the base portion 220, and the first volute portion 210 is engaged with the upper volute.

[0045] The base plate is generally a plate-shaped structure. It connects to the bottom of the first volute 210 and is used to connect the first volute 210 and the crossbeam 100. It can increase the contact area between the lower volute 200 and the crossbeam 100, and facilitate the improvement of the connection stability between the lower volute 200 and the crossbeam 100.

[0046] The first volute portion 210, together with the upper volute, forms an air duct structure with a accommodating cavity.

[0047] In some embodiments, a protruding structure is provided on the side of the base portion 220 near the crossbeam 100, and a stepped recessed structure is provided on the crossbeam 100 to cooperate with the protruding structure, thereby realizing the quick positioning and installation of the base portion 220 and the crossbeam 100.

[0048] In some embodiments, the upper volute includes a second volute portion 310 and an extension portion 320. The extension portion 320 is disposed at one end of the second volute portion 310 near the base portion 220. A third fixing hole 301 is disposed on the extension portion 320. The second volute portion 310 is engaged with the first volute portion 210.

[0049] The second volute portion 310 and the first volute portion 210 cooperate to form an air duct structure with a accommodating cavity.

[0050] The buckle 202 is disposed on the second volute portion 310, and the buckle groove 302 is disposed on the first volute portion 210.

[0051] The extension 320 is generally a strip-shaped structure, which is located at the bottom of the second volute 310 and is used to connect with the base 220 of the lower volute 200.

[0052] In some embodiments, the base portion 220 is provided with a plurality of connection holes, each of which is connected to the crossbeam 100 by screws.

[0053] Multiple connecting holes are arranged circumferentially along the base portion 220 and spaced apart from each other. Each connecting hole is connected to the crossbeam 100 by a screw. That is, the crossbeam 100 is provided with a screw connecting hole corresponding to each connecting hole. The screw passes through the connecting hole and connects with the screw hole to connect the crossbeam 100 to the base portion 220.

[0054] In some embodiments, the connector 400 is a screw. That is, the screw passes sequentially through the third fixing hole 301, the second fixing hole 201, and the first fixing hole 101.

[0055] In some embodiments, the second fixing hole 201 and the first fixing hole 101 are both U-shaped holes.

[0056] In some embodiments, the first fixing hole 101, the second fixing hole 201, and the third fixing hole 301 are all threaded holes, for connection with screws respectively.

[0057] In some embodiments, a boss 322 is provided at one end of the upper volute adjacent to the crossbeam 100. The boss 322 is close to the third fixing hole 301, and the connector 400 passes through the third fixing hole 301. The boss 322 abuts against one side of the connector 400.

[0058] Understandably, after the connector 400 passes through the third fixing hole 301, the boss 322 abuts against one side of the connector 400, which can apply a horizontal force to the connector 400 to prevent the connector 400 from loosening and improve the connection stability of the connector 400 to the upper volute, lower volute 200 and crossbeam 100.

[0059] Specifically, after the screw is connected in the third fixing hole 301, the second fixing hole 201 and the first fixing hole 101, the boss portion 322 abuts against one side of the screw to prevent the screw from loosening.

[0060] In some embodiments, an indoor unit is also provided, which includes the aforementioned air duct assembly 10. Since the air duct assembly 10 includes at least some or all of the above embodiments, the indoor unit has at least the beneficial effects of some or all of the above embodiments, which will not be described in detail here.

[0061] In some embodiments, an air conditioner is also provided, the refrigeration device including the above-described indoor unit. Since the indoor unit includes at least some or all of the embodiments of the above-described air duct assembly 10, the air conditioner has at least the beneficial effects of some or all of the above-described embodiments, which will not be described in detail here.

[0062] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made based on the contents of the present utility model specification and drawings under the application concept of the present utility model, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A duct assembly, characterized in that, include: A crossbeam, wherein a first fixing hole is provided on the crossbeam; The lower volute has one end connected to the crossbeam, and a second fixing hole is provided at the end of the lower volute adjacent to the crossbeam, with the second fixing hole facing the first fixing hole. The upper volute is engaged with the lower volute, and a third fixing hole is provided at one end of the upper volute adjacent to the crossbeam, the third fixing hole being directly opposite the second fixing hole; A connector is provided, which passes through the third fixing hole, the second fixing hole and the first fixing hole, to connect the upper volute, the lower volute and the crossbeam.

2. The air duct assembly according to claim 1, characterized in that, The upper volute has one of a first protrusion and a first recess at one end near the crossbeam, and the lower volute has the other of the first protrusion and the first recess. When the upper volute and the lower volute are connected, the first protrusion and the first recess are connected in a convex-concave manner.

3. The air duct assembly according to claim 1, characterized in that, The upper volute is provided with buckles at both ends, and the lower volute is provided with buckle grooves at both ends that engage with the buckles. Alternatively, the upper volute may be provided with the snap-fit ​​grooves at both ends, and the lower volute may be provided with the snap-fit ​​at both ends; The buckle engages with the buckle slot to engage the upper volute with the lower volute.

4. The air duct assembly according to claim 1, characterized in that, The lower volute includes a first volute portion and a base portion. The first volute portion is disposed on the base portion, and the base portion is connected to the crossbeam. The second fixing hole is disposed on the base portion, and the first volute portion is engaged with the upper volute.

5. The air duct assembly according to claim 4, characterized in that, The upper volute includes a second volute portion and an extension portion. The extension portion is disposed at one end of the second volute portion near the base portion. The third fixing hole is disposed on the extension portion. The second volute portion is engaged with the first volute portion.

6. The air duct assembly according to claim 4, characterized in that, The base portion is provided with multiple connection holes, and each connection hole is connected to the crossbeam by screws.

7. The air duct assembly according to claim 1, characterized in that, The connector is a screw.

8. The air duct assembly according to claim 1, characterized in that, The upper volute has a boss at one end near the crossbeam. The boss is close to the third fixing hole, and the connector passes through the third fixing hole. The boss abuts against one side of the connector.

9. An indoor unit, characterized in that, Includes the air duct assembly as described in any one of claims 1-8.

10. An air conditioner, characterized in that, Including the indoor unit as described in claim 9.

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