Air supply fan blade of air conditioner

Abstract

The utility model relates to a blowing fan blade of an air conditioner. The fan blades are arranged in the air conditioner shell, a motor in the air conditioner shell drives the fan blades to rotate, a cross-flow assembly of the fan blades comprises a plurality of fan blades, one ends of the fan blades are connected to a rotating plate, the fan blades are arranged at intervals along the circumferential edge of the rotating plate, an air inlet / outlet channel inclining in the same direction is formed between every two adjacent fan blades, and an inner cavity is defined by the fan blades. The other ends of the fan blades are connected to the guide ring, and a through hole is formed in the center of the guide ring. A spoiler of the spoiler assembly is arranged on the end face of a fixing seat, the other end face of the fixing seat is connected into the air conditioner shell, the through hole is matched with the outer side wall of the fixing seat, and the spoiler extends into the inner cavity. The spoiler extends into the cavity, and the surface of the spoiler is transversely arranged and is perpendicular to the opening at the lower end of the air conditioner shell, so that the spoiler penetrates through the downward-moving vortex, the vortex cannot be generated and can only flow downwards along the surface of the spoiler, single-side stress in the cavity is eliminated, and noise is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of air-conditioning equipment, and in particular relates to a fan blade of an air-conditioning. Background Art

[0002] At present, air conditioners, a type of refrigeration equipment, have entered thousands of households to adjust the temperature of people's living environment, so that people can be kept in a suitable temperature in hot summer or cold winter, providing people with a comfortable life. The technology of air conditioners is relatively mature. Air conditioning is achieved by the rotation of the fan blades to blow air to the evaporator, and the cold air on the evaporator is blown into the room to achieve the effect of cooling the room. The fan blades are generally in the form of a cross-flow fan wheel, which draws the surrounding air into the cross-flow fan wheel. The air will form a vortex that rotates in the center. Due to the bottom and outside of the air conditioner casing, the air will form a vortex that rotates in the center. The two ends are enclosed on the outer wall of the crossflow impeller in the form of baffles. The upper blades of the crossflow impeller and the actual airflow have a certain positive angle of attack, pushing the air toward the center to move in an arc, changing the flow field in the crossflow impeller and shifting the position of the vortex downward, thereby achieving the goal of sucking in the air at the upper end of the crossflow impeller and then flowing it out from the lower opening of the air-conditioning case. This is the basic principle of the crossflow impeller, but due to the downward movement of the vortex, a greater wind pressure is generated on the fan blades at the lower end, causing the rotation of the crossflow impeller to receive internal unilateral stress, causing the crossflow impeller to vibrate slightly and increase the noise. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a fan blade of an air conditioner, which extends a spoiler into a cavity enclosed by the blades of a flow-through assembly, and the surface of the spoiler is placed horizontally and perpendicular to the lower opening of the air conditioner case, so that the spoiler passes through the downward-moving vortex, forcing the vortex to be unable to be generated and can only flow downward along the surface of the spoiler, thereby eliminating the unilateral stress inside the cavity and reducing noise.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A fan blade of an air conditioner, wherein the fan blade is arranged in an air conditioner casing, and a motor in the air conditioner casing drives the fan blade to rotate, and the fan blade is composed of a flow-through component and a spoiler component, and the flow-through component includes a rotating plate, a plurality of fan blades and a guide ring, one end of the plurality of fan blades is connected to the rotating plate and is arranged at intervals along the circumferential edge of the rotating plate, and an air inlet / outlet channel inclined in the same direction is formed between adjacent fan blades, and the plurality of fan blades are surrounded to form an inner cavity, and the other ends of the plurality of fan blades are connected to the guide ring, and a through hole is provided at the center of the guide ring, and the rotating plate is connected to the output end of the motor;

[0006] The spoiler assembly includes a spoiler, a cylindrical fixing seat, a bearing and a limit platform, the spoiler is arranged on the end face of the fixing seat, the other end face of the fixing seat is connected to the air-conditioning case through a detachable limit platform, the through hole cooperates with the outer side wall of the fixing seat, the bearing is sleeved on the fixing seat, the edge of the through hole abuts against the outer ring of the bearing, the fixing seat penetrates into the through hole and does not contact the through hole, the spoiler extends into the inner cavity, and the plate surface of the spoiler is placed horizontally in the cavity and perpendicular to the lower end opening of the air-conditioning case.

[0007] The fan blades of the air conditioner adopting this structure are several blades arranged at intervals along the circumferential edge of the rotating plate, all of which are inclined in the same direction, and air inlet / outlet channels are formed between the blades. When the rotating plate is driven by a motor, the blades cut the air and suck the air into the inner cavity enclosed by the blades, forming a flow field under the influence of the structure of the air-conditioning case. At the same time, the vortex generated is also located at the lower end of the cavity. In order to force the vortex to dissipate, a spoiler is placed horizontally in the cavity, and the plate surface of the spoiler is perpendicular to the opening at the lower end of the air-conditioning case. This is the location where the turbine is generated. There is no need to completely define the specific position of the spoiler. It is only necessary to place the spoiler horizontally and perpendicular to the lower end opening of the air-conditioning case to change the air flow in the cavity. The turbine can be prevented from being generated only near the vortex, thereby eliminating the stress of the air inside the blade on the blade, avoiding the vibration of the blade during rotation, and reducing the generation of noise.

[0008] The fan blades need to rotate under the drive of the motor to cut the air to produce a flow field, but the spoiler must be relatively still. Therefore, the spoiler is set on a fixed seat, and the fixed seat is connected to the air-conditioning case through a limit table, that is, the spoiler is directly fixed on the air-conditioning case to achieve the relative stillness of the fan blades. The fan blades on the through-flow assembly are very long. If the guide ring cannot be relatively fixed during the rotation of the fan blades, the guide ring at the end of the fan blades will cause deflection and vibration, which will not only produce greater noise, but may also cause damage to the fan blades due to deflection. Therefore, a bearing is sleeved on the fixed seat, and the through hole on the guide ring is abutted against the outer ring of the bearing. Therefore, during the rotation of the fan blades, the guide ring will rotate on the outer ring of the bearing with the fixed seat as the rotation center, providing a fixing force for the guide ring, reducing the generation of noise and avoiding damage to the fan blades.

[0009] Furthermore, the limiting platform is provided with studs, the air conditioner casing is provided with lock holes that cooperate with the studs, and the studs and lock holes include at least two groups.

[0010] Compared with the prior art, the utility model has the following advantages: by placing a spoiler horizontally in the cavity enclosed by the fan blades, the spoiler is perpendicular to the lower end opening of the air conditioner casing, thereby changing the air flow in the cavity, making it impossible for the turbine to be generated, thereby eliminating the stress of the air inside the fan blades, avoiding the vibration of the fan blades during rotation, and reducing the generation of noise. In addition, the bearing sleeved on the fixed seat abuts against the through hole of the guide ring, so that the guide ring will rotate on the outer ring of the bearing with the fixed seat as the rotation center during the rotation of the fan blade, providing a fixing force for the guide ring, reducing the generation of noise and avoiding damage to the fan blades caused by deflection. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a three-dimensional diagram of the air conditioner casing of the utility model;

[0013] Figure 2 This is a front view of the air conditioner casing of the utility model;

[0014] Figure 3 For the utility model Figure 2 AA cross-sectional view and air flow diagram;

[0015] Figure 4 It is a left-side exploded schematic diagram of the utility model;

[0016] Figure 5 It is a right side exploded schematic diagram of the utility model.

[0017] Among them: 1. air conditioner shell; 11. lock hole; 2. motor; 3. flow-through assembly; 31. rotating plate; 32. fan blade; 33. guide ring; 331. through hole; 34. inner cavity; 4. spoiler assembly; 41. spoiler; 42. fixing seat; 43. bearing; 44. limit table; 45. stud. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0019] The specific implementation of the utility model will be described below in conjunction with the accompanying drawings:

[0020] like Figure 1-5 As shown, a fan blade of an air conditioner, the fan blade is arranged in an air conditioner casing, the motor 2 in the air conditioner casing drives the fan blade to rotate, the fan blade is composed of a flow-through component 3 and a spoiler component 4, the flow-through component 3 includes a rotating plate 31, a plurality of fan blades 32 and a guide ring 33, one end of the plurality of fan blades 32 is connected to the rotating plate 31 and is arranged at intervals along the circumferential edge of the rotating plate 31, and an air inlet / outlet channel inclined in the same direction is formed between adjacent fan blades 32, the plurality of fan blades 32 are surrounded to form an inner cavity 34, the other ends of the plurality of fan blades 32 are connected to the guide ring 33, a through hole 331 is provided at the center of the guide ring 33, and the rotating plate 31 is connected to the output end of the motor 2;

[0021] The spoiler assembly 4 includes a spoiler 41, a cylindrical fixing seat 42, a bearing 43 and a limit platform 44. The spoiler 41 is arranged on the end face of the fixing seat 42, and the other end face of the fixing seat 42 is connected to the air-conditioning case through a detachable limit platform 44. The through hole 331 cooperates with the outer wall of the fixing seat 42, and the bearing 43 is sleeved on the fixing seat 42. The edge of the through hole 331 abuts on the outer ring of the bearing 43. The fixing seat 42 penetrates into the through hole 331 and does not contact the through hole 331. The spoiler 41 extends into the inner cavity 34, and the plate surface of the spoiler 41 is placed horizontally in the cavity and perpendicular to the lower end opening of the air-conditioning case.

[0022] Furthermore, the limiting platform 44 is provided with a stud 45, and the air conditioner casing is provided with a lock hole 11 matched with the stud 45, and the stud 45 and the lock hole 11 include at least two groups.

[0023] Description of the working method of this utility model:

[0024] The air supply blades of the air conditioner adopting this structure have several blades 32 arranged at intervals along the circumferential edge of the rotating plate 31, all of which are inclined in the same direction. An air inlet / outlet channel is formed between the blades 32. When the rotating plate 31 is driven by the motor 2, the blades 32 cut the air and suck the air into the inner cavity 34 enclosed by the blades 32. A flow field is formed under the influence of the structure of the air conditioner case. At the same time, the vortex generated is also located at the lower end of the cavity. In order to force the vortex to dissipate, a spoiler 41 is placed horizontally in the cavity. The plate surface of the spoiler 41 is perpendicular to the opening at the lower end of the air conditioner case. This is the location where the turbine is generated. There is no need to completely define the specific position of the spoiler 41. It is only necessary to place the spoiler 41 horizontally and perpendicular to the lower end opening of the air conditioner case to change the air flow in the cavity. The turbine can be prevented from being generated only near the vortex, thereby eliminating the stress of the air inside the blade 32 on the blade 32, avoiding the vibration of the blade 32 during rotation, and reducing the generation of noise.

[0025] Since the fan blade 32 needs to be driven by the motor 2 to rotate in order to cut the air to generate a flow field, but the spoiler 41 needs to be relatively stationary, the spoiler 41 is set on the fixed seat 42, and the fixed seat 42 is penetrated and connected with the two sets of lock holes 11 on the air-conditioning casing through two sets of studs 45 on the limit platform 44. The setting of the two sets of studs 45 can limit the rotation of the limit platform 44, and nuts can be screwed into the studs 45 to achieve fixation, that is, the spoiler 41 is directly fixed to the air-conditioning casing to achieve relative stillness of the fan blade 32, and the fan blade 32 on the through-flow assembly 3 is very long, such as If the guide ring 33 is not relatively fixed during the rotation of the fan blade 32, the guide ring 33 at the end of the fan blade 32 will cause deflection and vibration, which will not only generate greater noise, but also may cause damage to the fan blade 32 due to the deflection. Therefore, a bearing 43 is sleeved on the fixed seat 42, and the through hole 331 on the guide ring 33 is abutted against the outer ring of the bearing 43. Therefore, during the rotation of the fan blade 32, the guide ring 33 will rotate on the outer ring of the bearing 43 with the fixed seat 42 as the rotation center, providing a fixing force for the guide ring 33, reducing the generation of noise and avoiding damage to the fan blade 32.

[0026] The beneficial effect of the utility model is that a spoiler 41 is placed horizontally in the cavity enclosed by the fan blades 32, and the spoiler 41 is perpendicular to the lower end opening of the air conditioner casing, so as to change the air flow in the cavity, so that the turbine cannot be generated, thereby eliminating the stress of the air inside the fan blades 32, avoiding the fan blades 32 from vibrating during the rotation process, and reducing the noise generation. In addition, the bearing 43 sleeved on the fixed seat 42 abuts against the through hole 331 of the guide ring 33, so that the guide ring 33 rotates on the outer ring of the bearing 43 with the fixed seat 42 as the rotation center during the rotation of the fan blade 32, providing a fixing force for the guide ring 33, reducing the noise generation and avoiding the damage of the fan blade 32 caused by deflection.

[0027] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A fan blade of an air conditioner, wherein the fan blade is arranged in an air conditioner casing, and a motor in the air conditioner casing drives the fan blade to rotate, characterized in that: The fan blades are composed of a flow-through component and a spoiler component, the flow-through component includes a rotating plate, a plurality of blades and a guide ring, one end of the plurality of blades is connected to the rotating plate and is spaced apart along the circumferential edge of the rotating plate, an air inlet / outlet channel inclined in the same direction is formed between adjacent blades, the plurality of blades are combined to form an inner cavity, the other ends of the plurality of blades are connected to the guide ring, a through hole is provided at the center of the guide ring, the rotating plate is connected to the output end of the motor; the spoiler component includes a spoiler and a cylindrical fixing seat, the spoiler is arranged on the end face of the fixing seat, the other end face of the fixing seat is connected to the air conditioner casing, the through hole cooperates with the outer side wall of the fixing seat, and the spoiler extends into the inner cavity.

2. The air supply fan blade of the air conditioner according to claim 1, characterized in that: The spoiler assembly also includes a bearing and a limit platform. The fixed seat is connected to the air conditioner casing through a detachable limit platform. The bearing is sleeved on the fixed seat. The edge of the through hole abuts against the outer ring of the bearing. The fixed seat penetrates into the through hole and does not contact the through hole.

3. The air supply fan blade of the air conditioner according to claim 2, characterized in that: The limiting platform is provided with a stud, and the air conditioner casing is provided with a lock hole matched with the stud.

4. The air supply fan blade of the air conditioner according to claim 3, characterized in that: The studs and lock holes include at least two groups.

5. The air supply fan blade of the air conditioner according to claim 1, characterized in that: The plate surface of the spoiler is horizontally placed in the cavity and perpendicular to the lower end opening of the air conditioner casing.

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