Left-right swing driving crankshaft structure of air conditioner

Abstract

The invention relates to the technical field of household appliances, and discloses an air conditioner left-right swing driving crankshaft structure which comprises a driving crankshaft and a bottom frame left-right swing block, a connecting rod driving shaft is integrally formed on the upper surface of the driving crankshaft, a motor shaft sleeve is integrally formed on the lower surface of the driving crankshaft, and a plurality of buckles are integrally formed on the outer surface of the motor shaft sleeve; the buckle is in the shape of an arc-shaped elastic piece protruding towards the outer side. The free ends of the buckles are obliquely arranged outwards, gaps are formed between motor shaft sleeves composed of the multiple buckles and used for elastic deformation, a bottom frame assembly hole is integrally formed in the bottom frame left-right swing block, a bottom frame auxiliary block is integrally formed on the outer surface of the bottom frame left-right swing block, and the bottom frame auxiliary block is an annular boss. The buckle is of an elastic buckle structure, it can be guaranteed that the driving crankshaft is not prone to falling off before the motor is installed, and the problem that part of bottom frame products are difficult to assemble is solved.

Description

Technical Field

[0001] This invention relates to the field of home appliance technology, specifically to a crankshaft structure for driving the left and right swing of an air conditioner. Background Technology

[0002] In the air conditioning industry, the left and right swing function is one of the core functions that improve user comfort. As a key transmission component of the air conditioning left and right swing mechanism, the rationality of the drive crankshaft directly determines the operational stability, assembly convenience and component versatility of the swing mechanism. The drive crankshaft needs to accurately achieve the transmission cooperation with the swing connecting rod and the output shaft of the left and right swing motors. At the same time, it needs to be stably assembled with the left and right swing blocks of the bottom frame to ensure that the structure remains stable during the air conditioning assembly process (especially the pre-assembly stage before motor installation) and avoid displacement or detachment.

[0003] The same drive crankshaft component needs to be adapted to different models and specifications of base frame products in order to reduce production and manufacturing costs and improve the component commonality rate. The existing air conditioning left and right swing drive crankshaft structure has defects. When adapting to multiple base frame products, the original drive crankshaft structure has problems such as falling off or assembly difficulties, and cannot guarantee the commonality of drive crankshaft.

[0004] Therefore, there is an urgent need for an air conditioning left and right swing drive crankshaft structure that can not only solve the problem of production feedback drive crankshaft falling off or assembly difficulties, but also ensure the interoperability of parts, with a simple structure that is easy to assemble, stable and reliable. Summary of the Invention

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an air conditioner left and right swing drive crankshaft structure, which solves the problem that the drive crankshaft is not easy to fall off before the motor is installed.

[0006] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: an air conditioner left and right swing drive crankshaft structure, including a drive crankshaft and a bottom frame left and right swing block, a connecting rod drive shaft integrally formed on the upper surface of the drive crankshaft, a motor bushing integrally formed on the lower surface of the drive crankshaft, and a plurality of buckles integrally formed on the outer surface of the motor bushing, the buckles being arc-shaped spring pieces protruding outwards; The free end of the buckle is tilted outward, and there is a gap between the motor bushing composed of multiple buckles to allow for elastic deformation.

[0007] Preferably, the bottom frame left and right swing blocks have an integrally formed bottom frame mounting hole inside, and a bottom frame auxiliary block is integrally formed on the outer surface of the bottom frame left and right swing blocks. The bottom frame auxiliary block is an annular boss. The bottom frame auxiliary block fits with the end face of the drive crankshaft and plays the role of assisting positioning and increasing the sealing of the mating surface. The maximum outer diameter of the buckle is slightly larger than the inner diameter of the bottom frame mounting hole.

[0008] Preferably, the outer diameter of the connecting rod drive shaft is slightly smaller than that of the drive crankshaft, and the surface is smoothed to achieve rotational engagement with the swing linkage.

[0009] Preferably, the inner diameter of the motor bushing is adapted to the outer diameter of the output shaft of the left and right swing fan motor, so as to achieve a tight insertion fit with the motor output shaft.

[0010] (III) Beneficial Effects Compared with the prior art, the present invention provides an air conditioner left and right swing drive crankshaft structure, which has the following beneficial effects: 1. The crankshaft structure for the left and right swing air of this air conditioner has an elastic buckle structure, which can ensure that the crankshaft driven by the motor is not easy to fall off before installation, and also solves the problem of difficult assembly with some bottom frame products. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a crankshaft structure for driving the left and right swing of an air conditioner according to the present invention; Figure 2 This is a schematic diagram of the motor bushing structure of the present invention; Figure 3 This is a schematic diagram of the connecting rod drive shaft structure of the present invention; Figure 4 This is a schematic diagram of the bottom frame auxiliary block structure of the present invention.

[0012] In the diagram: 1. Drive crankshaft; 1a. Connecting rod drive shaft; 1b. Motor bushing; 1c. Snap fastener; 2. Left and right swing blocks of the bottom frame; 2a. Bottom frame mounting hole; 2b. Bottom frame auxiliary block. Detailed Implementation

[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] Please see Figure 1-4 The present invention provides a new technical solution: an air conditioner left and right swing drive crankshaft structure, including a drive crankshaft 1 and a bottom frame left and right swing block 2. The upper surface of the drive crankshaft 1 is integrally formed with a connecting rod drive shaft 1a, the lower surface of the drive crankshaft 1 is integrally formed with a motor bushing 1b, the outer surface of the motor bushing 1b is integrally formed with multiple buckles 1c, the buckles 1c are arc-shaped spring pieces protruding outward, the free end of the buckles 1c is inclined outward, and there is a gap between the motor bushing 1b composed of multiple buckles 1c for elastic deformation; The bottom frame left and right swing blocks 2 have an integrally formed bottom frame mounting hole 2a inside, and a bottom frame auxiliary block 2b is integrally formed on the outer surface of the bottom frame left and right swing blocks 2. The bottom frame auxiliary block 2b is an annular boss. The bottom frame auxiliary block 2b fits with the end face of the drive crankshaft 1 and plays the role of auxiliary positioning and increasing the sealing of the mating surface. The maximum outer diameter of the buckle 1c is slightly larger than the inner diameter of the bottom frame mounting hole 2a. Among them, the outer diameter of the connecting rod drive shaft 1a is slightly smaller than that of the drive crankshaft 1, and the surface is smoothed. It is used to achieve rotational engagement with the swing connecting rod. The inner diameter of the motor bushing 1b is adapted to the outer diameter of the output shaft of the left and right swing motors. It is used to achieve a tight insertion engagement with the motor output shaft.

[0015] Furthermore, when using this device, firstly, perform a visual inspection of the drive crankshaft 1 to confirm that the smooth surface of the connecting rod drive shaft 1a is free of burrs and scratches, and that the buckle 1c on the motor bushing 1b is free of breakage and deformation, ensuring that all structures are intact; at the same time, clean the dust and impurities inside and around the bottom frame mounting hole 2a of the bottom frame left and right swing blocks 2, and the connection part between the bottom frame auxiliary block 2b and the bottom frame left and right swing blocks 2, and check that the inner wall of the bottom frame mounting hole 2a is free of protrusions and damage, and that the mating surface of the bottom frame auxiliary block 2b is free of deformation and cracks, ensuring that the mounting surface is clean and flat.

[0016] When ready for use, align the motor bushing 1b of the drive crankshaft 1 with the bottom frame mounting hole 2a of the left and right swing blocks 2 of the bottom frame from top to bottom. Then move the drive crankshaft 1 downward so that the motor bushing 1b enters the bottom frame mounting hole 2a of the left and right swing blocks 2 of the bottom frame. At this time, the drive crankshaft 1 and the bottom frame auxiliary block 2b fit tightly together. After the drive crankshaft is assembled, install the left and right swing motors. The 1c snap-fit ​​mechanism is a flexible snap-fit ​​structure, which ensures that the front drive crankshaft of the motor is not easily dislodged and also solves the problem of difficult assembly with some base frame products.

[0017] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crankshaft structure for driving left and right airflow in an air conditioner, characterized in that: Includes a drive crankshaft (1) and a bottom frame left and right swing block (2). The upper surface of the drive crankshaft (1) is integrally formed with a connecting rod drive shaft (1a), and the lower surface of the drive crankshaft (1) is integrally formed with a motor bushing (1b). The outer surface of the motor bushing (1b) is integrally formed with multiple buckles (1c). The buckles (1c) are arc-shaped spring pieces that protrude outward. The free end of the buckle (1c) is tilted outward, and there is a gap between the motor bushing (1b) composed of multiple buckles (1c) for elastic deformation.

2. The air conditioner left and right swing drive crankshaft structure according to claim 1, characterized in that: The bottom frame left and right swing blocks (2) have an integrally formed bottom frame assembly hole (2a) inside, and an integrally formed bottom frame auxiliary block (2b) on the outer surface of the bottom frame left and right swing blocks (2). The bottom frame auxiliary block (2b) is an annular boss. The bottom frame auxiliary block (2b) fits with the end face of the drive crankshaft (1) and plays the role of auxiliary positioning and increasing the sealing of the mating surface. The maximum outer diameter of the buckle (1c) is greater than the inner diameter of the bottom frame assembly hole (2a).

3. The air conditioner left and right swing drive crankshaft structure according to claim 1, characterized in that: The outer diameter of the connecting rod drive shaft (1a) is smaller than that of the drive crankshaft (1), and its surface is smoothed to achieve rotational engagement with the swing connecting rod.

4. The air conditioner left and right swing drive crankshaft structure according to claim 1, characterized in that: The inner diameter of the motor bushing (1b) is adapted to the outer diameter of the output shaft of the left and right swing motors, and is used to achieve a tight insertion fit with the motor output shaft.

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