An inner air guide door anti-drop structure and an indoor unit and air conditioner having the same

Abstract

The present invention provides an inner air guide door anti-slip structure and an indoor unit and air conditioner having the same. The inner air guide door anti-slip structure includes an inner air guide door shaft, a sleeve, and a base beak assembled in one body. Along the assembly direction, the base beak presents a first tapered structure on its inner side surface that is narrow in the front and wide in the back. The sleeve is connected to the front and back sides of the first tapered structure. The inner air guide door shaft is rotated and passed through the sleeve through the anti-slip protrusion provided at its front end. The sleeve is provided with an anti-slip step for forming a rear abutment against the anti-slip protrusion. The inner air guide door anti-slip structure and the indoor unit and air conditioner having the same described in the present invention facilitate the assembly, disassembly and anti-slip of the inner air guide door, ensuring that it will not fall out due to shaking during transportation; and multiple connections can be avoided to ensure an air-conditioning blowing experience.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an inner air guide door anti-detachment structure and an indoor unit and an air conditioner having the same. Background Art

[0002] In the existing indoor air conditioners with double air guide doors, in order to prevent the inner air guide door from falling off the connection with the base during transportation, multiple scattered connection points are usually used to connect the inner air guide door to the middle frame. This type of multi-point connection method of the connection bracket will have a certain interference with the direction of the air flow blown out by the air conditioner, affecting the blowing feeling of the air conditioner and making it difficult to disassemble; the other method is to use a smaller number of rotating shaft connection structures. Although this type of rotating shaft connection method is easy to disassemble and assemble, it is very easy to fall off during transportation and is often mistaken by customers as product damage. Summary of the Invention

[0003] In view of this, the technical problem to be solved by the present invention is: the first aspect is to provide an anti-detachment structure for the inner air guide door, which is convenient for the assembly, disassembly and anti-detachment of the inner air guide door, ensuring that it will not fall out due to shaking during transportation; it can also avoid multiple points of connection to ensure the air-conditioning blowing experience.

[0004] In order to solve the above-mentioned technical problem in the first aspect, the present invention provides an anti-slip structure for an inner air guide door, comprising an inner air guide door shaft, a sleeve, and a base beak assembled in one body. Along the assembly direction, the base beak has a first tapered structure on its inner side surface which is narrow in the front and wide in the back. The sleeve clamping sleeve is connected to the front and rear sides of the first tapered structure. The inner air guide door shaft is rotatably passed through the sleeve through the anti-slip protrusion opened at its front end. The sleeve is provided with an anti-slip step for forming a rear abutment against the anti-slip protrusion.

[0005] The anti-detachment structure of the inner air guide door described in the present invention achieves effective anti-detachment of the inner air guide door by only making a simple structural change to the original rotating shaft connection method of the inner air guide door, so that the inner air guide door is easy to assemble, disassemble and prevent from detaching, ensuring that it will not detach due to shaking during transportation; it can also avoid multiple points of connection, ensuring the air-conditioning blowing experience.

[0006] Preferably, the outer wall surface of the sleeve is connected to the front side of the first tapered structure through a limiting buckle sleeve provided at the front end thereof.

[0007] The structural size of the limit buckle is relatively small, so whether it is assembling or disassembling the inner air guide door, the difficulty of the limit buckle being forced to be squeezed and deformed is greatly reduced, which is more conducive to the inner air guide door's functional requirements of easy assembly, disassembly and anti-slip being achieved at the same time.

[0008] Preferably, the shaft sleeve is provided with an assembly opening extending from front to rear.

[0009] The opening of the assembly opening provides the sleeve with a larger deformation and contraction space during assembly, disassembly and even anti-slipping. Therefore, on the one hand, when the sleeve is in the normal contracted state, the inner air guide door shaft can rotate normally and pass through the sleeve; on the other hand, when the sleeve is assembled, disassembled and even anti-slipping, the sleeve, especially the limit buckle, can be better stretched and deformed by the anti-slip protrusion, which will be more conducive to the assembly, disassembly and even anti-slipping of the inner air guide door.

[0010] Preferably, the inner wall surface of the sleeve located at the limiting buckle has a second tapered structure adapted to the anti-slip boss, and the second tapered structure is wide at the front and narrow at the back.

[0011] The initial clearance between the limit buckle and the base beak can leave a large adjustment margin, which is more conducive to the assembly and disassembly of the inner air guide door, and makes it easier for the inner air guide door to achieve a better balance during assembly, disassembly and anti-slip.

[0012] Preferably, the normal spacing of the assembly openings is D5, the outer diameter of the inner air guide door shaft is D3, and D5 / D3=0.3-0.4.

[0013] This range of dimensions can ensure that the inner air guide door can rotate better.

[0014] Preferably, the maximum height of the limiting buckle is D4, and the outer diameter of the sleeve is D7, then D4 / (D7-D3)=0.6-0.7.

[0015] This size range allows for assembly and disassembly, and can ensure that the sleeve is prevented from falling off.

[0016] Preferably, the maximum horizontal distance from the rear end of the sleeve to the rear end of the inner air guide door shaft is D2, and correspondingly, the horizontal distance from the front end of the limit buckle to the rear end of the anti-slip boss is D1, then D1 / D2=0.7~0.8.

[0017] Within this size range, disassembly and assembly can be achieved while also providing a certain degree of anti-slip function.

[0018] Preferably, the maximum outer diameter of the anti-slip boss is D9, and the inner diameter of the anti-slip step is D6, then D9 / D6=1.4-1.5.

[0019] This range of dimensions allows for assembly and disassembly, and plays a decisive role in the anti-slip function. If D9 / D6 is too large, assembly will be difficult, while if it is too small, the anti-slip effect will be poor.

[0020] The technical problem to be solved by the present invention is also: the second aspect provides an indoor unit, and / or the third aspect provides an air conditioner, which is convenient for the assembly, disassembly and anti-detachment of the inner air guide door, ensuring that it will not fall out due to shaking during transportation; and can avoid multiple points of connection to ensure the air-conditioning blowing experience.

[0021] In order to solve the above-mentioned technical problem in the second aspect, the present invention provides an indoor unit having the inner air guide door anti-detachment structure described in any embodiment of the first aspect.

[0022] In order to solve the technical problem in the third aspect mentioned above, the present invention provides an air conditioner having the inner air guide door anti-detachment structure described in any embodiment of the first aspect.

[0023] Compared with the prior art, the inner air guide door anti-detachment structure of the present invention and the indoor unit and air conditioner having the same have the following beneficial effects:

[0024] It is convenient for the assembly, disassembly and anti-falling of the inner air guide door, ensuring that it will not fall out due to shaking during transportation; it can also avoid multiple connections to ensure the air-conditioning blowing experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which constitute part of the present invention, are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the assembly structure of an inner air guide door using a rotating shaft connection method according to a specific embodiment of the present invention;

[0027] Figure 2 for Figure 1 Schematic diagram of the local enlarged structure at A in the middle;

[0028] Figure 3 This is a schematic diagram of the assembly structure of an inner air guide door described in Example 1 of the present invention using a rotating shaft connection method;

[0029] Figure 4 for Figure 3 Schematic diagram of the local enlarged structure at B in the middle;

[0030] Figure 5 This is a schematic diagram of the three-dimensional structure of a shaft sleeve described in Example 1 of the present invention;

[0031] Figure 6 for Figure 5 Schematic diagram of the main structure;

[0032] Figure 7 for Figure 5 Schematic diagram of the top view structure;

[0033] Figure 8 for Figure 5 Schematic diagram of the left view structure;

[0034] Figure 9 This is a schematic diagram of the assembly structure of an inner air guide door shaft described in Example 1 of the present invention;

[0035] Figure 10 for Figure 9 Schematic diagram of the local enlarged structure at C in the middle;

[0036] Figure 11 for Figure 10 Schematic diagram of the three-dimensional structure;

[0037] Figure 12 This is a schematic diagram of the assembly structure of a base beak described in Example 1 of the present invention;

[0038] Figure 13 for Figure 12 Schematic diagram of the local enlarged structure at E in the middle;

[0039] Figure 14 This is a schematic diagram of the pre-assembled structure of the inner air guide door shaft and the shaft sleeve described in Example 1 of the present invention;

[0040] Figure 15 This is a schematic diagram of the pre-assembled structure of a shaft sleeve and a base beak described in Example 1 of the present invention.

[0041] Description of reference numerals:

[0042] 1-inner air guide door shaft, 11-anti-slip boss, 2-sleeve, 21-anti-slip step, 22-limit buckle, 23-limit ring, 24-assembly opening, 25-second taper structure, 26-bell mouth structure, 3-base eagle beak, 31-first taper structure. DETAILED DESCRIPTION

[0043] To make the above-mentioned objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments of the present invention described herein only constitute part of the embodiments of the present invention, which are only used to explain the present invention and do not constitute a limitation of the present invention. In the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0044] See also Figure 1-2 The figure shows a schematic diagram of the assembly structure of an inner air guide door using a rotating shaft connection method. In the figure, a base beak 3 is provided on the indoor unit of the air conditioner, and a sleeve 2 is connected to the base beak 3 by a sleeve, and the inner air guide door shaft 1 is rotatably passed through the sleeve 2.

[0045] Specifically, during transportation, if the indoor unit is hit, the inner air guide door will shake. Since the inner air guide door shaft 1 is relatively short, if the shaking direction is in the axial direction of the inner air guide door shaft 1, the inner air guide door will fall out. If the inner air guide door shaft 1 is longer, assembly will be difficult. Therefore, it is not easy to prevent the inner air guide door from falling out by controlling the dimensions of each component while disassembly and assembly are possible.

[0046] The present invention further improves the connection structure between the inner air guide door shaft 1, the shaft sleeve 2, and the base beak 3 based on the above-mentioned shaft connection method, so as to effectively prevent the inner air guide door from falling off by simply changing the structure of the above-mentioned components. Ultimately, the inner air guide door is easy to assemble, disassemble, and prevent from falling off, while also ensuring the air conditioning blowing experience. The present invention will be specifically explained below through the following embodiments.

[0047] Example 1

[0048] like Figure 3-15 As shown, the present invention provides an anti-slip structure for an inner air guide door, comprising an inner air guide door shaft 1, a sleeve 2, and a base beak 3 assembled in one body. Along the assembly direction, the base beak 3 has a first tapered structure 31 on its inner side surface which is narrow in the front and wide in the back. The sleeve 2 is connected to the front and rear sides of the first tapered structure 31 by a clamping sleeve. The inner air guide door shaft 1 is rotatably passed through the sleeve 2 through the anti-slip protrusion 11 opened at its front end. The sleeve 2 is provided with an anti-slip step 21 for forming a rear abutment against the anti-slip protrusion 11.

[0049] Specifically, during transportation, when the inner air guide door shakes and tends to fall out, the inner air guide door shaft 1 moves in the axial direction toward the rear, and the anti-slip protrusion 11 will quickly abut against the anti-slip step 21, thereby driving the sleeve 2 to move in the axial direction toward the rear. The first tapered structure 31 is narrow in front and wide in the back, and at least at the front end of the first tapered structure 31, the sleeve 2 and the base beak 3 have a high degree of tight fit, making it difficult for the sleeve 2 to easily fall out of the base beak 3. In particular, after the anti-slip protrusion 11 has moved a certain distance in the rear direction, the anti-slip protrusion 11 will force the front end of the sleeve 2 to expand and deform appropriately, and then at the front end of the first tapered structure 31, the tight fit of the sleeve 2 and the base beak 3 will be further strengthened, thereby effectively preventing the sleeve 2 from moving in the axial direction toward the rear, thereby effectively preventing the inner air guide door from falling out and ensuring that it will not fall out due to shaking during transportation.

[0050] During the assembly process of the inner air guide door, under the continuously applied assembly force, the anti-slip boss 11 can easily force the anti-slip step 21 to deform and pass through the front end of the sleeve 2. At this time, the sleeve 2 can be pushed to the rear end of the inner air guide door shaft 1. Furthermore, due to the setting of the first tapered structure 31 being narrow in front and wide in the back, the anti-slip boss 11 and the front end part of the sleeve 2 can easily pass through the first tapered structure 31 one after another, thereby realizing the card sleeve connection between the sleeve 2 and the base beak 3, and completing the integrated assembly of the inner air guide door shaft 1, the sleeve 2 and the base beak 3.

[0051] During the disassembly and assembly process of the inner air guide door, under the continuously applied disassembly and assembly force, the front end portion of the sleeve 2 can be forced to be squeezed and deformed by relying on the elastic deformation characteristic of the plastic material of the sleeve 2. Furthermore, also due to the setting of the first tapered structure 31 being narrow in front and wide in the back, after the front end portion of the sleeve 2 meets certain forced deformation conditions, the inner air guide door shaft 1 can also easily carry the sleeve 2 and be quickly disassembled and assembled from the base beak 3.

[0052] Therefore, the anti-detachment structure of the inner air guide door described in the present invention achieves effective anti-detachment of the inner air guide door by only making a simple structural change to the original rotating shaft connection method of the inner air guide door, so that the inner air guide door is easy to assemble, disassemble and prevent from detaching, ensuring that it will not detach due to shaking during transportation; it can also avoid multiple points of connection to ensure the air-conditioning blowing experience.

[0053] Preferably, the outer wall surface of the sleeve 2 is connected to the front side of the first tapered structure 31 through a limiting buckle 22 provided at the front end thereof.

[0054] Specifically, a limiting ring 23 can be provided on the rear end of the outer wall of the sleeve 2, so that the sleeve 2 can be connected to the rear side of the first tapered structure 31 through the limiting ring 23, thereby working together with the limiting buckle 22 to ensure the integrated assembly effect of the inner air guide door shaft 1, the sleeve 2, and the base beak 3. At the front end of the sleeve 2, due to the setting of the first tapered structure 31 being narrow in front and wide in the back, the limiting buckle 22 has a much smaller structural size than the limiting ring 23, but it can achieve an equivalent clamping effect and integrated assembly effect as the limiting ring 23; more importantly, precisely because the limiting buckle 22 has a smaller structural size, the difficulty of the limiting buckle 22 being forced to be squeezed and deformed is greatly reduced, whether it is assembled or disassembled. The combination of the above two aspects is more conducive to the internal air guide door's functional requirements of being easy to assemble and disassemble and preventing it from falling off.

[0055] Preferably, the shaft sleeve 2 is provided with an assembly opening 24 extending from front to rear.

[0056] Specifically, after the inner air guide door shaft 1, the sleeve 2, and the base beak 3 are assembled as a whole, the inner air guide door shaft 1 needs to be rotated and inserted into the sleeve 2, that is, there needs to be a clearance fit between the inner air guide door shaft 1 and the sleeve 2 to ensure that the inner air guide door can normally adjust the air flow direction. The opening 24 provides the sleeve 2 with a large deformation and contraction space during assembly, disassembly, and even anti-slip. On the one hand, when the sleeve 2 is in a normal contracted state, the inner air guide door shaft 1 can be normally rotated and inserted into the sleeve 2; on the other hand, when the sleeve 2 is assembled, disassembled, and even anti-slip, the sleeve 2, especially the limit buckle 22, can be better stretched and deformed by the anti-slip protrusion 11, thereby further facilitating the assembly, disassembly, and even anti-slip of the inner air guide door. Specifically, the size of the assembly opening 24 can be optimized according to the different requirements of the limit buckle 22 in the deformation direction and degree during the assembly, disassembly and even anti-detachment of the inner air guide door, combined with the clearance fit requirements of the inner air guide door shaft 1, the deformation and shrinkage performance of the sleeve 2 and other factors.

[0057] Preferably, the inner wall surface of the shaft sleeve 2 located at the limiting buckle 22 is in a second tapered structure 25 adapted to the anti-slip boss 11 , and the second tapered structure 25 is wide at the front and narrow at the back.

[0058] Specifically, the second tapered structure 25 is configured to be wide at the front and narrow at the rear, facilitating the smooth entry of the anti-slip protrusion 11 into the front end of the shaft sleeve 2 when the inner air guide door is prevented from falling off. Furthermore, as the anti-slip protrusion 11 gradually moves toward the rear, the assembly opening 24 can be gradually expanded. As a result, at least the limit buckle 22 at the front end of the first tapered structure 31 is significantly expanded and deformed, and the clearance fit with the base beak 3 gradually transforms into an interference fit that prevents it from falling off. As a result, the initial clearance fit between the limit buckle 22 and the base beak 3 can leave a large adjustment margin, which is more conducive to the assembly and disassembly of the inner air guide door and facilitates achieving a better balance between assembly, disassembly, and anti-slip of the inner air guide door.

[0059] As one example of the present invention, the inner wall surface of the sleeve 2 located at the front end of the anti-slip step 22 can be a bell-mouth structure 26 adapted to the anti-slip boss 11, and the bell-mouth structure 26 is wide in front and narrow in the back and includes the second taper structure 25.

[0060] Example 2

[0061] This embodiment is a further optimization of the specific size setting of the inner air guide door anti-detachment structure based on the embodiment 1.

[0062] like Figure 7-15 As shown, the maximum horizontal distance from the rear end of the sleeve 2 to the rear end of the inner air guide door shaft 1 is D2. Correspondingly, the horizontal distance from the front end of the limit buckle 22 to the rear end of the anti-slip protrusion 11 is D1, so D1 / D2=0.7~0.8.

[0063] Specifically, within this range of dimensions, disassembly and assembly can be achieved while also providing a certain degree of anti-fall-off function.

[0064] Preferably, the maximum outer diameter of the anti-slip boss 11 is D9, and the inner diameter of the anti-slip step 21 is D6, then D9 / D6=1.4-1.5.

[0065] Specifically, this range of dimensions allows for assembly and disassembly, and plays a decisive role in the anti-slip function. If D9 / D6 is too large, assembly will be difficult, while if it is too small, the anti-slip effect will be poor.

[0066] Preferably, the normal distance between the assembly openings 24 is D5, and the outer diameter of the inner air guide door shaft 1 is D3, then D5 / D3=0.3-0.4.

[0067] Specifically, this range of dimensions can ensure that the inner air guide door can rotate well.

[0068] Preferably, the included angle between the second tapered structure 25 and the horizontal plane is D8, and D8 = 10° to 20°.

[0069] Specifically, when the inner air guide door shaft 1 moves in the disengaging direction, the taper can gradually open the assembly opening 24 of the sleeve 2, so that the clearance fit between the sleeve 2 and the base beak 3 is gradually transformed into an interference fit that cannot be disengaged.

[0070] Preferably, the front end of the anti-slip boss 11 is provided with a chamfer of 20° to 30°.

[0071] Specifically, the chamfering within this size range makes it easier for the anti-slip boss 11 to be inserted into the shaft sleeve 2 .

[0072] Preferably, the maximum height of the limiting buckle 22 is D4, and the outer diameter of the shaft sleeve 2 is D7, then D4 / (D7-D3)=0.6-0.7.

[0073] Specifically, this size range allows for assembly and disassembly, and can ensure that the shaft sleeve 2 is prevented from falling off.

[0074] Preferably, the included angle between the first tapered structure 31 and the horizontal plane is D10, and D10 = 5° to 10°.

[0075] Specifically, the taper setting within this size range is more convenient for installing the shaft sleeve 2.

[0076] Finally, it should be noted that the inner air guide door anti-slip structure described in the present invention primarily relies on the anti-slip function of the inner air guide door shaft 1 and sleeve 2, and the anti-slip function of the sleeve 2 and base beak 3, to achieve overall anti-slip protection for the inner air guide door. If the anti-slip effect is poor, the anti-slip effect can be enhanced by appropriately increasing the maximum outer diameter D9 of the anti-slip boss 11 and / or increasing the maximum height D4 of the limit buckle 22, provided that disassembly is possible. Of course, the width of the limit buckle 22 can also be increased. If disassembly is difficult, the corresponding dimensions can be reduced.

[0077] Example 3

[0078] The present invention also provides an indoor unit having the inner air guide door anti-detachment structure described in Example 1.

[0079] The present invention also provides an air conditioner having the inner air guide door anti-detachment structure described in Example 1.

[0080] Specifically, those skilled in the art can understand that when the indoor unit and / or air conditioner provided in Example 3 has the internal air guide door anti-detachment structure described in Examples 1-2, the solution to the corresponding technical problems and the achievement of its technical effects can be found in the description of the internal air guide door anti-detachment structure in Examples 1-2, and no further details will be given here.

[0081] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the scope defined by the claims.

Claims

1. An inner air guide door anti-detachment structure, characterized in that: The invention comprises an inner air guide door rotating shaft (1), a shaft sleeve (2), and a base beak (3) assembled in one body. Along the assembly direction, the base beak (3) presents a first tapered structure (31) on its inner side surface which is narrow in front and wide in the back. The shaft sleeve (2) is connected to the front and back sides of the first tapered structure (31) by a sleeve. The inner air guide door rotating shaft (1) is rotatably inserted into the shaft sleeve (2) through a stop-slip protrusion (11) provided at its front end. The shaft sleeve (2) is provided with a stop-slip step (21) for forming a rear side abutment against the stop-slip protrusion (11).

2. The inner air guide door anti-detachment structure according to claim 1, characterized in that: The outer wall surface of the shaft sleeve (2) is connected to the front side of the first tapered structure (31) via a limiting buckle (22) sleeve provided at the front end thereof.

3. The inner air guide door anti-detachment structure according to claim 2, characterized in that: The shaft sleeve (2) is provided with an assembly opening (24) extending from the front to the rear.

4. The inner air guide door anti-detachment structure according to claim 3, characterized in that: The inner wall surface of the shaft sleeve (2) located at the limiting buckle (22) presents a second tapered structure (25) adapted to the anti-slip protrusion (11), and the second tapered structure (25) is wide at the front and narrow at the back.

5. The inner air guide door anti-detachment structure according to claim 4, characterized in that: The normal spacing of the assembly opening (24) is D5, and the outer diameter of the inner air guide door rotating shaft (1) is D3, so D5 / D3=0.3-0.

4.

6. The inner air guide door anti-detachment structure according to claim 5, characterized in that: The maximum height of the limiting buckle (22) is D4, and the outer diameter of the shaft sleeve (2) is D7, so D4 / (D7-D3)=0.6-0.

7.

7. An inner air guide door anti-detachment structure according to any one of claims 2 to 6, characterized in that: The maximum horizontal distance between the rear end of the sleeve (2) and the rear end of the inner air guide door shaft (1) is D2. Correspondingly, the horizontal distance between the front end of the limit buckle (22) and the rear end of the anti-slip protrusion (11) is D1, and D1 / D2=0.7-0.

8.

8. An inner air guide door anti-detachment structure according to any one of claims 1 to 6, characterized in that: The maximum outer diameter of the anti-slip protrusion (11) is D9, and the inner diameter of the anti-slip step (21) is D6, so D9 / D6=1.4-1.

5.

9. An indoor unit, characterized in that: The indoor unit has the inner air guide door anti-detachment structure according to any one of claims 1 to 8.

10. An air conditioner, characterized in that: The air conditioner has the inner air guide door anti-detachment structure according to any one of claims 1 to 8.

Images