Base assembly, indoor unit and air conditioner

Abstract

The utility model discloses a base assembly, indoor unit and air conditioner, this base assembly includes base, first cross flow fan, second cross flow fan, shaft coupling and apron, and the base includes air duct, and first cross flow fan, second cross flow fan set up in the air duct, and the shaft coupling is connected first cross flow fan and second cross flow fan, and the lid is combined on the air duct and cooperates to form the accommodation cavity, and the shaft coupling sets up in the accommodation cavity, and the apron is provided with a plurality of ventilation holes to communicate outside and the accommodation cavity, the utility model discloses a ventilation hole is set up on the apron of shaft coupling, and the air duct is communicated with the accommodation cavity, makes apron windward side and leeward side's airflow can exchange to keep temperature even, avoids leeward side relative windward side temperature excessively high and condensation phenomenon.

Description

Technical Field

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

[0002] As an important branch of split-type air conditioners, wall-mounted air conditioners account for a large proportion of manufacturers' production and sales. Among them, the base is the core component of the air conditioner. It is assembled with the middle frame assembly, air guide plate assembly, etc. on the outside, and works with the electrical control box assembly, evaporator assembly, etc. on the inside to achieve the normal operation of the air conditioner. Its functional experience, such as noise, condensation, and comfort, is an important indicator of the quality of the air conditioner and is closely related to the base.

[0003] In existing wall-mounted air conditioner indoor units, if the base has multiple coaxially arranged cross-flow fans, and adjacent cross-flow fans are connected by couplings, and a support structure is set at the connection point, but since there is no fan at the support structure, there is no airflow on its back, which easily leads to condensation on the back of the support structure. Utility Model Content

[0004] The main objective of this utility model embodiment is to provide a base assembly, indoor unit, and air conditioner, aiming to improve the technical problem of easy condensation on the back of the cross-flow fan support structure in the prior art.

[0005] An embodiment of this utility model provides an indoor unit, comprising: Base, including air duct; A first cross-flow fan is installed in the air duct; A second cross-flow fan is installed in the air duct; A coupling connects the first cross-flow fan and the second cross-flow fan; A cover plate is disposed between the first cross-flow fan and the second cross-flow fan, covering the air duct and cooperating with it to form a receiving cavity. The coupling is disposed in the receiving cavity. The cover plate is provided with multiple ventilation holes to connect the outside with the receiving cavity.

[0006] In some embodiments of this utility model, a plurality of ventilation holes form a plurality of ventilation hole arrays spaced apart from each other along the width direction of the cover plate, and the plurality of ventilation holes in the ventilation hole array are distributed spaced apart from each other along the length direction of the cover plate.

[0007] In some embodiments of this utility model, in the ventilation hole array, the distance between two adjacent ventilation holes is greater than or equal to 4 mm and less than or equal to 6 mm.

[0008] In some embodiments of this utility model, the width of the ventilation hole is greater than or equal to 2mm and less than or equal to 4mm.

[0009] In some embodiments of this utility model, an air guide is also provided in the air duct. The air guide is close to the cover plate and is used to guide the airflow in the air duct between the first cross-flow fan and the second cross-flow fan.

[0010] In some embodiments of this utility model, a plurality of air guides are provided in the air duct, including a first air guide and a second air guide. The first air guide and the second air guide are respectively located on both sides of the cover plate, and are used to guide the airflow in the air duct between the first cross-flow fan and the second cross-flow fan.

[0011] In some embodiments of this utility model, a support platform is provided on the air duct, the support platform protrudes from the bottom wall of the air duct, and the support platform and the cover plate enclose the receiving cavity.

[0012] In some embodiments of this utility model, receiving grooves are respectively provided on the end walls of both ends of the air duct, and one end of the cross-flow fan in the air duct adjacent to the end wall is disposed in the receiving groove.

[0013] In some embodiments of this utility model, an indoor unit is also provided, which includes the aforementioned base assembly.

[0014] In some embodiments of this utility model, an air conditioner is also provided, which includes the aforementioned base assembly.

[0015] The present invention provides a base assembly, an indoor unit, and an air conditioner. The base assembly provides ventilation holes on the cover plate of the coupling, connecting the ventilation duct and the accommodating cavity, so that the airflow on the windward and leeward sides of the cover plate can be exchanged, thereby maintaining a uniform temperature and preventing condensation from occurring on the leeward side relative to the windward side. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a schematic diagram of the structure of a base assembly according to an embodiment of the present invention; Figure 2This is a schematic diagram of the structure of a cover plate according to an embodiment of the present utility model; Figure 3 This is a schematic diagram showing the positional relationship between the air duct and the air guide component in one embodiment of the present invention; Figure 4 This is a schematic diagram of the end wall structure of one embodiment of the present invention.

[0018] Reference numerals: 100, base; 110, air duct; 111, end wall; 120, support platform; 130, receiving groove; 210, first cross-flow fan; 220, second cross-flow fan; 300, cover plate; 301, ventilation hole; 400, air guide. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] like Figures 1-4 As shown, this utility model provides a base assembly, which includes a base 100, a first cross-flow fan 210, a second cross-flow fan 220, and a cover plate 300. The base 100 includes an air duct 110, in which the first cross-flow fan 210 and the second cross-flow fan 220 are disposed. A coupling connects the first cross-flow fan 210 and the second cross-flow fan 220. The cover plate 300 is disposed between the first cross-flow fan 210 and the second cross-flow fan 220, and covers the air duct 110 to form a receiving cavity. The coupling is disposed in the receiving cavity. The cover plate 300 is provided with a plurality of ventilation holes 301 to connect the outside to the receiving cavity.

[0024] The air duct 110 is a groove provided along the length of the base 100.

[0025] The first cross-flow fan 210 and the second cross-flow fan 220 are arranged in the air duct 110 along the length of the base 100.

[0026] Understandably, the base assembly, by providing ventilation holes 301 on the cover plate 300 of the coupling, connects the ventilation channel 110 with the receiving cavity, allowing airflow to exchange between the windward and leeward sides of the cover plate 300, thereby maintaining a uniform temperature and preventing condensation from occurring due to the leeward side being too hot relative to the windward side.

[0027] It should be noted that the windward side of the cover plate 300 is the inner wall of the receiving cavity, and the leeward side of the cover plate 300 is the outer wall of the receiving cavity.

[0028] In some embodiments, the air duct 110 may be provided with only two cross-flow fans, such as a first cross-flow fan 210 and a second cross-flow fan 220; in other embodiments, the air duct 110 may also be provided with multiple cross-flow fans, such as a first cross-flow fan 210, a second cross-flow fan 220, and a first cross-flow fan 210.

[0029] In some embodiments, a plurality of ventilation holes 301 form a plurality of ventilation hole arrays spaced apart from each other along the width direction of the cover plate 300, and the plurality of ventilation holes 301 in the ventilation hole array are distributed at intervals from each other along the length direction of the cover plate 300.

[0030] It is understandable that multiple ventilation hole arrays are spaced apart from each other along the width direction of the cover plate 300, and the ventilation holes 301 in the ventilation hole array are spaced apart along the length direction of the cover plate 300, so that the airflow in the air duct 110 can enter the receiving cavity evenly, avoiding condensation caused by no air intake in some areas.

[0031] Furthermore, multiple ventilation hole arrays are equidistantly spaced on the cover plate 300 to maximize the uniformity of airflow entering the accommodating cavity through the air duct 110.

[0032] In some embodiments, in the ventilation hole array, the distance between two adjacent ventilation holes 301 is greater than or equal to 4 mm and less than or equal to 6 mm.

[0033] It is understandable that if the ventilation hole 301 is too small, it may lead to insufficient air intake, and if the ventilation hole 301 is too large, it may lead to the area between adjacent ventilation holes 301 not being affected by the air intake airflow, resulting in an excessive temperature difference between the windward and leeward sides of the area and causing condensation. Therefore, the spacing of the ventilation holes 301 is limited to a reasonable range to ensure the air intake volume and air intake effect.

[0034] In some embodiments, the distance between two adjacent ventilation holes 301 is equal to 4 mm.

[0035] In some embodiments, the distance between two adjacent ventilation holes 301 is equal to 5 mm.

[0036] In some embodiments, the distance between two adjacent ventilation holes 301 is equal to 6 mm.

[0037] In some embodiments, the width of the ventilation hole 301 is greater than or equal to 2 mm and less than or equal to 4 mm.

[0038] Understandably, if the width of the ventilation hole 301 is too small, it will affect the air intake efficiency, while if it is too large, it will reduce the structural strength of the cover plate 300. Therefore, it is necessary to limit the width of the ventilation hole 301 to an appropriate size.

[0039] Specifically, when the ventilation hole 301 is a round hole, the diameter of the ventilation hole 301 is greater than or equal to 2 mm and less than or equal to 4 mm; when the ventilation hole 301 is a square hole or other irregular hole, the larger of the length and width of the ventilation hole 301 is greater than or equal to 2 mm and less than or equal to 4 mm.

[0040] In some embodiments, the width of the ventilation hole 301 is equal to 2 mm.

[0041] In some embodiments, the width of the ventilation hole 301 is equal to 3 mm.

[0042] In some embodiments, the width of the ventilation hole 301 is equal to 4 mm.

[0043] In some embodiments, the air duct 110 is further provided with an air guide 400, which is close to the cover plate 300 and is used to guide the airflow in the air duct 110 between the first cross-flow fan 210 and the second cross-flow fan 220.

[0044] It is understandable that an air guide 400 is installed in the air duct 110 near the cover plate 300 to guide the airflow of the air duct 110 between the first cross-flow fan 210 and the second cross-flow fan 220, so that the airflow converges on the front side or surface of the cover plate 300, and then the airflow is introduced into the accommodating cavity through the ventilation holes 301 on the cover plate 300, so as to keep the temperature of the windward side and the leeward side of the cover plate 300 similar and avoid condensation due to excessive temperature difference.

[0045] Specifically, the air guide 400 is positioned close to the cover plate 300, with one end located inside the air duct 110 and the other end extending out of the air duct 110 and tilted towards the cover plate 300.

[0046] Among them, the air guide component 400 can be any one of air guide strips or air guide vanes.

[0047] In some embodiments, the air duct 110 is provided with a plurality of air guides 400, the plurality of air guides 400 including a first air guide and a second air guide, the first air guide and the second air guide are respectively located on both sides of the cover plate 300, for guiding the airflow in the air duct 110 between the first cross-flow fan 210 and the second cross-flow fan 220.

[0048] Specifically, the first air guide and the second air guide are both installed with one end inside the air duct 110 and the other end extends out of the air duct 110 and tilted towards the cover plate 300. The two are arranged opposite each other to guide the airflow on both sides of the cover plate 300 to the front side or surface of the cover plate 300, increase the airflow near the cover plate 300, and ensure that there is enough airflow to enter the accommodating cavity so that the temperature on the windward side and the leeward side of the cover plate 300 is similar.

[0049] In some embodiments, the air guide 400 is rotatably disposed in the air duct 110, and the tilt of the air guide 400 can be adjusted to adjust the air volume directed between the first cross-flow fan 210 and the second cross-flow fan 220.

[0050] In some embodiments, a support platform 120 is provided on the air duct 110. The support platform 120 protrudes from the bottom wall of the air duct 110, and the support platform 120 and the cover plate 300 enclose a receiving cavity.

[0051] The support platform 120, which protrudes from the bottom wall of the air duct 110, supports the coupling and, together with the cover plate 300, forms a receiving cavity to accommodate and protect the coupling.

[0052] In some embodiments, receiving grooves 130 are respectively provided on the end walls 111 at both ends of the air duct 110, and one end of the cross-flow fan in the air duct 110 adjacent to the end wall 111 is disposed in the receiving groove 130.

[0053] Among them, the cross-flow fan adjacent to the end wall 111 refers to the cross-flow fan in the air duct 110 that is adjacent to the end wall 111. When there are multiple cross-flow fans in the air duct 110, each of the two end walls 111 corresponds to a cross-flow fan.

[0054] It is understandable that by setting a receiving groove 130 on the end wall 111 and placing the end of the cross-flow fan in the receiving groove 130, a negative pressure area is avoided between the end of the cross-flow fan and the end wall 111 of the air duct 110, thereby preventing the negative pressure area between the end of the cross-flow fan and the end wall 111 from introducing airflow and causing surge.

[0055] In some embodiments, the present invention also provides an indoor unit, which includes the aforementioned base assembly. Since the indoor unit has the aforementioned base assembly, that is, includes some or all of the embodiments of the aforementioned base assembly, the corresponding indoor unit has the beneficial effects of some or all of the embodiments of the aforementioned base assembly.

[0056] In some embodiments, the present invention also provides an air conditioner that includes the aforementioned base assembly. Since the air conditioner has the aforementioned base assembly, that is, includes some or all of the embodiments of the aforementioned base assembly, the corresponding air conditioner has the beneficial effects of some or all of the embodiments of the aforementioned base assembly.

[0057] 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 base assembly, characterized in that, include: Base, including air duct; A first cross-flow fan is installed in the air duct; A second cross-flow fan is installed in the air duct; A coupling connects the first cross-flow fan and the second cross-flow fan; A cover plate is disposed between the first cross-flow fan and the second cross-flow fan, covering the air duct and cooperating with it to form a receiving cavity. The coupling is disposed in the receiving cavity. The cover plate is provided with multiple ventilation holes to connect the outside with the receiving cavity.

2. The base assembly according to claim 1, characterized in that, The plurality of ventilation holes form a plurality of ventilation hole arrays spaced apart from each other along the width direction of the cover plate, and the plurality of ventilation holes in the ventilation hole array are distributed spaced apart from each other along the length direction of the cover plate.

3. The base assembly according to claim 2, characterized in that, In the array of ventilation holes, the distance between two adjacent ventilation holes is greater than or equal to 4 mm and less than or equal to 6 mm.

4. The base assembly according to claim 1, characterized in that, The width of the ventilation hole is greater than or equal to 2 mm and less than or equal to 4 mm.

5. The base assembly according to claim 1, characterized in that, The air duct is also provided with an air guide component, which is close to the cover plate and is used to guide the airflow in the air duct between the first cross-flow fan and the second cross-flow fan.

6. The base assembly according to claim 5, characterized in that, The air duct is provided with a plurality of air guides, including a first air guide and a second air guide. The first air guide and the second air guide are respectively located on both sides of the cover plate, and are used to guide the airflow in the air duct between the first cross-flow fan and the second cross-flow fan.

7. The base assembly according to claim 1, characterized in that, A support platform is provided on the air duct, the support platform protrudes from the bottom wall of the air duct, and the support platform and the cover plate enclose the receiving cavity.

8. The base assembly according to claim 1, characterized in that, The air duct has receiving grooves on its end walls at both ends, and one end of the cross-flow fan in the air duct adjacent to the end wall is disposed in the receiving groove.

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

10. An air conditioner, characterized in that, Includes the base assembly as described in any one of claims 1-8.

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