Fan blade structure and fan thereof

Abstract

The utility model discloses a fan blade structure and a fan thereof, and relates to the field of household appliances. The fan blade body comprises an outer fan blade and an inner fan blade, an outer ring is fixedly connected to the inner side of the outer fan blade, the outer ring is fixedly connected to the outer side of the inner fan blade, the outer fan blade and the inner fan blade are fixedly connected to the outer ring to form the double-layer fan blade with different fan blades and the same rotating speed, a fixing column is fixedly connected to the inner side of the outer fan blade, and the fixing column is fixedly connected to the outer surface of the outer ring. The inner ring is fixedly connected to the inner side of the inner fan blade, the base is fixedly connected to the interior of the inner ring, the double-layer fan blade is directly connected with the base through the inner ring, the strength of the outer fan blade and the inner fan blade is remarkably improved due to existence and fixation of the outer ring and the inner ring, and therefore the safety performance of the whole fan blade is improved; when the motor with the higher rotating speed is adopted for driving to obtain the larger air volume, the problems of deformation and breakage of the fan blades can be effectively avoided, and therefore the design requirements for light weight, portability and large air volume are met.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a fan blade structure and a fan thereof. Background Art

[0002] Fans have been popular with people since the invention of motors. Their main energy supply is to cool down and circulate air, and they are widely used by people in summer.

[0003] Most of the small electric fans on the market now are products that pursue portability. These fans are characterized by being small and light overall, making them convenient for people to carry and place at any time. However, the price of pursuing convenience and lightness is that the overall strength of the fan is not high. The fan blades are mostly made of plastic materials, and there are mostly 4-7 fan blades. If you want to get a higher air volume, you usually design a higher power motor to make the fan blade speed higher. However, too high a speed will make the fan blades more affected by the centrifugal force when rotating. The fan blades are prone to bending and deformation during high-speed rotation. For fan blades with a long service life, the plastic becomes hard and brittle, and may even break and separate when subjected to ultra-high speeds, which is unsafe. For this reason, a fan blade structure is specially provided to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a fan blade structure which solves the problem that, in order to meet design requirements, the fan blades of small-sized fans on the market are mostly made of plastic and have a high motor speed, which causes the fan blades to be easily deformed or even broken during use.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: the fan blade body includes an outer fan blade and an inner fan blade, the inner side of the outer fan blade is fixedly connected with an outer ring, and the outer ring is fixedly connected to the outer side of the inner fan blade.

[0006] Preferably, a fixing column is fixedly connected to the inner side of the outer fan blade, and the fixing column is fixedly connected to the outer surface of the outer ring.

[0007] Preferably, an inner ring is fixedly connected to the inner side of the inner fan blade, and a base is fixedly connected to the inner side of the inner ring.

[0008] Preferably, a T-shaped component is provided inside the base, and the T-shaped component includes a perforated transmission shaft and a latch, and the latch is fixedly connected inside the base.

[0009] Preferably, one end of the perforated transmission shaft is fixedly mounted on the outside of the latch, and the perforated transmission shaft passes through the base.

[0010] Preferably, a fan comprises a fan housing and an air inlet cover fixedly arranged on the back side of the fan housing, a servo motor is fixedly installed inside the air inlet cover, the fan blade body is arranged inside the fan housing, and the perforated transmission shaft is fixedly connected to the output end of the servo motor.

[0011] The utility model discloses a fan blade structure, which has the following beneficial effects: the fan blade structure forms different fan blades by fixing outer fan blades and inner fan blades on an outer ring, thereby increasing the wind flow rate when in use, and greatly improving the wind force and fan utilization rate. At the same time, due to the existence of the outer ring, the strength of the outer fan blades is improved, and the safety performance is improved. When a higher speed motor is used to drive to obtain a larger air volume, the fan blades can be effectively avoided from being deformed and broken, thereby meeting the design requirements of lightweight portability and large air volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] 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.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the overall external structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the external back structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the back structure of the utility model;

[0017] Figure 5 It is a schematic diagram of the internal detailed structure of the utility model.

[0018] In the figure: 1. fan housing; 2. servo motor; 3. fan blade body; 4. air inlet cover; 31. inner fan blade; 32. outer fan blade; 33. outer ring; 34. inner ring; 35. base; 36. T-shaped assembly; 37. fixing column; 361. latch; 362. perforated transmission shaft. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are 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 are within the scope of protection of the utility model.

[0020] The embodiments of the present application provide a fan blade structure to solve the problem that, in order to meet design requirements, the fan blades of small-sized fans currently on the market are mostly made of plastic and have a high motor speed, which causes the fan blades to be easily deformed or even broken during use.

[0021] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] The utility model embodiment discloses a fan blade structure according to the attached Figure 1-5 As shown; the fan blade structure includes a fan blade body 3, the fan blade body 3 includes an outer fan blade 32 and an inner fan blade 31, the inner side of the outer fan blade 32 is fixedly connected to an outer ring 33, and the outer ring 33 is fixedly connected to the outer side of the inner fan blade 31;

[0023] The outer fan blades 32 and the inner fan blades 31 are fixedly connected on the outer ring 33 to form a double-layer fan blade with different blades but the same rotation speed. The strength of the outer fan blades 32 is improved, and the safety performance is improved. When a higher speed motor is used to drive to obtain a larger air volume, the deformation and breakage of the fan blades can be effectively avoided, thereby meeting the design requirements of lightweight portability and large air volume.

[0024] A fixing column 37 is fixedly connected to the inner side of the outer fan blade 32, and the fixing column 37 is fixedly connected to the outer surface of the outer ring 33. By using the fixing column 37 welded on the outer ring 33, the outer fan blade 32 can be more firmly fixed to prevent it from falling off during operation, further increasing the safety of use.

[0025] An inner ring 34 is fixedly connected to the inner side of the inner fan blade 31 , a base 35 is fixedly connected inside the inner ring 34 , and the double-layer fan blade is directly connected to the base 35 via the inner ring 34 .

[0026] A T-shaped assembly 36 is disposed inside the base 35 , and the T-shaped assembly 36 includes a perforated transmission shaft 362 and a latch 361 . The latch 361 is fixedly connected inside the base 35 ; one end of the perforated transmission shaft 362 is fixedly installed outside the latch 361 , and the perforated transmission shaft 362 passes through the base 35 .

[0027] Embodiment: A fan comprises a fan housing 1 and an air inlet cover 4 fixedly arranged on the back of the fan housing 1;

[0028] A servo motor 2 is fixedly installed inside the air inlet cover 4, the fan blade body 3 is arranged inside the fan housing 1, and the perforated transmission shaft 362 is fixedly connected to the output end of the servo motor 2. The servo motor 2 and the fan blade body 3 are directly connected by using the perforated transmission shaft 362, which avoids energy loss and increases kinetic energy utilization. Through a simple structure, unnecessary costs and space are reduced, the volume of the double-layer fan is further reduced, and the portability and convenience are greatly increased.

[0029] Summary: The fan blade structure forms different fan blades by fixing the outer blades and the inner blades on the outer ring, which increases the wind flow rate when in use, meets the requirements of greatly improving the wind force and fan utilization rate. At the same time, due to the existence of the outer ring, the strength of the outer blades is improved, and the safety performance is improved. When a higher speed motor is used to drive to obtain a larger air volume, the deformation and breakage of the fan blades can be effectively avoided, thereby meeting the design requirements of lightweight portability and large air volume.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A fan blade structure, comprising a fan blade body (3), characterized in that: The fan blade body (3) comprises an outer fan blade (32) and an inner fan blade (31); an outer ring (33) is fixedly connected to the inner side of the outer fan blade (32); and the outer ring (33) is fixedly connected to the outer side of the inner fan blade (31).

2. A fan blade structure according to claim 1, characterized in that: A fixing column (37) is fixedly connected to the inner side of the outer fan blade (32), and the fixing column (37) is fixedly connected to the outer surface of the outer ring (33).

3. A fan blade structure according to claim 1, characterized in that: An inner ring (34) is fixedly connected to the inner side of the inner fan blade (31), and a base (35) is fixedly connected inside the inner ring (34).

4. A fan blade structure according to claim 3, characterized in that: A T-shaped component (36) is arranged inside the base (35), and the T-shaped component (36) includes a perforated transmission shaft (362) and a latch (361), and the latch (361) is fixedly clamped inside the base (35).

5. A fan blade structure according to claim 4, characterized in that: One end of the perforated transmission shaft (362) is fixedly mounted outside the latch (361), and the perforated transmission shaft (362) passes through the base (35).

6. A fan, comprising the fan blade structure according to any one of claims 1 to 5, characterized in that: It comprises a fan housing (1) and an air inlet cover (4) fixedly arranged on the back side of the fan housing (1); A servo motor (2) is fixedly installed inside the air inlet cover (4); The fan blade body (3) is arranged inside the fan housing (1), and the perforated transmission shaft (362) is fixedly connected to the output end of the servo motor (2).

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