Fan with wind wheel pressing outer rotor

Abstract

The utility model provides a fan with a wind wheel pressing an outer rotor. The fan comprises a motor and the wind wheel. The motor comprises an outer rotor, a stator, a central seat and a control panel, the central seat and the control panel are fixedly arranged, the stator is sleeved and fixed on the central seat, the stator is electrically connected with the control panel, and the outer rotor is rotationally connected with the central seat through a rotating shaft; the wind wheel comprises a connecting cylinder, connecting rings and blades, the blades are distributed around the connecting cylinder, the connecting rings are arranged in multiple layers, all the blades are connected through each layer of connecting ring, part of the connecting rings are arranged on the connecting cylinder in a sleeving mode and fixedly connected with the connecting cylinder, and the connecting cylinder is arranged on the outer rotor in a sleeving mode and fixedly connected with the outer rotor. According to the utility model, the axial extension length of the wind wheel is reduced, the structural compactness is improved, in addition, the insulation sealing performance of the internal structure of the motor is further improved through the arrangement of the bottom cover, the insulation plate and the like, the long-term use reliability of the fan is ensured, and the fan can be flexibly adapted to operation in various complex environments.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a fan with a wind wheel pressing an outer rotor. Background Art

[0002] A fan is a device that uses a motor to drive the rotating blades, increasing gas pressure and discharging the gas. Fans are widely used for ventilation, dust removal, and cooling in factories, mines, tunnels, cooling towers, vehicles, ships, and buildings, as well as for ventilation and cooling in air conditioning equipment and household appliances. Traditionally, the impeller and motor are connected by an axial compression method, where the impeller and the motor's outer rotor are connected via a rotating shaft. When the motor is powered, the outer rotor drives the shaft and the impeller. This method results in a relatively large fan size, especially the axial dimension, making it difficult to install or inconvenient to use in certain scenarios, and further improvements are needed. Utility Model Content

[0003] The purpose of this utility model is to address the deficiencies in the above-mentioned background technology and to provide a solution in which a wind wheel is directly press-fitted to an outer rotor of a motor, so as to reduce the axial size of the fan and improve the compactness of the fan structure.

[0004] In order to achieve the above-mentioned object, the utility model provides a fan with a wind wheel pressing an outer rotor, comprising a motor and a wind wheel;

[0005] The motor includes an outer rotor, a stator, a center seat and a control board. The center seat and the control board are fixed. The stator is sleeved and fixed on the center seat. The stator is electrically connected to the control board. The outer rotor is rotatably connected to the center seat via a rotating shaft.

[0006] The wind wheel includes a connecting tube, a connecting ring and blades. The blades are distributed around the connecting tube. The connecting ring is provided with multiple layers. Each layer of the connecting ring connects all the blades. Some of the connecting rings are sleeved on the connecting tube and fixedly connected to the connecting tube. The connecting tube is sleeved on the outer rotor and fixedly connected to the outer rotor.

[0007] Furthermore, the connecting tube and the outer rotor are interference fit.

[0008] Furthermore, the connecting tube is located at the bottom or middle of the wind wheel.

[0009] Furthermore, it also includes a bottom cover and an insulating plate, the bottom cover is arranged below the center seat and connected to the center seat, the insulating plate and the control board are both arranged inside the bottom cover and the center seat, and the insulating plate is located above the control board.

[0010] Furthermore, the bottom of the center seat and the insulating plate are both provided with through holes, and the stator is provided with pins, which pass through the through holes and are connected to the control board.

[0011] Furthermore, a wire sleeve is provided on the bottom cover, and the wire sleeve is used to lead out the circuit of the control board.

[0012] Furthermore, the bottom cover is connected to the center seat through bolt holes and bolts, and bolt holes are also correspondingly provided on the control board and the insulating board.

[0013] The above solution of the utility model has the following beneficial effects:

[0014] The fan with a wind wheel pressing an outer rotor provided by the utility model has a direct pressing method of the wind wheel and the outer rotor, so that the rotating shaft of the outer rotor does not need to be provided with a protruding arrangement, and the connection position of the wind wheel and the outer rotor is directly flush with the outer rotor, thereby reducing the axial extension length of the wind wheel and improving the compactness of the structure. In addition, the provision of the bottom cover, the insulating plate, etc. further improves the insulation and sealing of the internal structure of the motor, thereby ensuring the long-term reliability of the fan and being able to flexibly adapt to various complex environments.

[0015] Other beneficial effects of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is an exploded view of the overall structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the motor structure of the utility model;

[0019] Figure 4 This is a top view of the wind wheel structure of the present utility model.

[0020] [Description of Reference Numerals]

[0021] 1-outer rotor; 2-stator; 3-center seat; 4-control board; 5-rotating shaft; 6-bearing; 7-connecting cylinder; 8-connecting ring; 9-blade; 10-bottom cover; 11-insulating plate; 12-pin; 13-wire sleeve. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments. Obviously, the embodiments described are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to a locking connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0025] like Figures 1-4 As shown, an embodiment of the present invention provides a wind turbine with a wind wheel and an outer rotor, comprising a motor and a wind wheel. The motor adopts the form of an outer rotor 1, comprising an outer rotor 1, a stator 2, a center seat 3 and a control board 4. The center seat 3 and the control board 4 are both fixedly arranged, the stator 2 is sleeved on the center seat 3 and fixedly connected to the center seat 3 (using interference fit or the like), and is electrically connected to the control board 4. The outer rotor 1 is rotatably connected to the center seat 3 through a rotating shaft 5, and is rotatably supported by (at least one pair of) bearings 6 on the center seat 3. It can be understood that based on the setting of the control board 4, the wind turbine can be directly controlled.

[0026] In this embodiment, the wind rotor adopts a monolithic structure, comprising a connecting tube 7, a connecting ring 8, and blades 9. The blades 9 are distributed around the connecting tube 7, and the connecting ring 8 is arranged in multiple layers, each connecting ring 8 connecting all the blades 9, thus connecting all the blades 9 as a whole. Furthermore, the central connecting ring 8 is sleeved onto and connected to the connecting tube 7. The connecting tube 7 is directly press-fitted to the outer rotor 1, using an interference fit. This ensures that the rotation of the outer rotor 1 drives the wind rotor, achieving the purpose of air supply.

[0027] It can be understood that the design of this wind wheel structure and the connection method with the outer rotor 1 make it unnecessary for the rotating shaft 5 of the outer rotor 1 to be set in a protruding manner. The connection position between the wind wheel and the outer rotor 1 is directly flush with the outer rotor 1, which reduces the axial extension length of the wind wheel and improves the compactness of the structure.

[0028] In addition, in other embodiments, the connecting cylinder 7 and the outer rotor 1 can also be connected by connecting pins or the like to maintain synchronous rotation, or by bonding or the like (for small-sized fans and light-weight materials). Those skilled in the art can flexibly choose based on actual needs and designs.

[0029] It should be noted that the connecting tube 7 can be located at the bottom of the entire wind wheel or at the center of the entire wind wheel. Since the outer diameter of the outer rotor 1 is the outer diameter of the entire motor, the blades 9 of the wind wheel will not be obstructed by other structures of the motor when extending downward.

[0030] To further enhance the fan's protection level, enable it to adapt to more complex environments, and avoid failure due to long-term use, this embodiment further includes a bottom cover 10 and an insulating plate 11. The bottom cover 10 is disposed below and connected to the center seat 3. Both the bottom of the center seat 3 and the bottom cover 10 are provided with a cavity. When the bottom cover 10 is connected to the center seat 3, the cavities formed by the two constitute a space for accommodating the insulating plate 11 and the control board 4. The insulating plate 11 is located above the control board 4. Therefore, the control board 4 is covered by the insulating plate 11 and the bottom cover 10 (made of insulating material), providing insulation and sealing protection for the control board 4, thereby ensuring the long-term reliability of the fan in complex environments.

[0031] The bottom of the center base 3 and the insulating plate 11 are both perforated, and the stator 2 is equipped with pins 12 for connecting to the control board 4. Once the stator 2 is installed, the pins 12 pass through the perforations on the bottom of the center base 3 and the insulating plate 11 and electrically connect to the control board 4, allowing the control board 4 to power and control the stator 2. Furthermore, the bottom cover 10 is equipped with a wire sleeve 13 for routing external wiring to the control board 4.

[0032] It is worth mentioning that the bottom cover 10 and the center seat 3 are connected by bolts through bolt holes. At the same time, bolt holes are also provided on the control board 4 and the insulating board 11, so that the four are connected at the same time by bolts, which is convenient for installation and maintenance after disassembly.

[0033] In summary, the fan with a wind wheel pressure outer rotor provided in this embodiment has the characteristics of compact structure and reliable use, and can flexibly adapt to various complex operating environments.

[0034] The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A fan with a wind wheel pressure outer rotor, characterized in that: Including motor and wind wheel; The motor includes an outer rotor, a stator, a center seat and a control board. The center seat and the control board are fixed. The stator is sleeved and fixed on the center seat. The stator is electrically connected to the control board. The outer rotor is rotatably connected to the center seat via a rotating shaft. The wind wheel includes a connecting tube, a connecting ring and blades. The blades are distributed around the connecting tube. The connecting ring is provided with multiple layers. Each layer of the connecting ring connects all the blades. Some of the connecting rings are sleeved on the connecting tube and fixedly connected to the connecting tube. The connecting tube is sleeved on the outer rotor and fixedly connected to the outer rotor.

2. A fan with a wind wheel pressure outer rotor according to claim 1, characterized in that: The connecting cylinder is interference fit with the outer rotor.

3. The fan with a wind wheel pressure outer rotor according to claim 1, characterized in that: The connecting tube is located at the bottom or middle of the wind wheel.

4. The fan with a wind wheel pressure outer rotor according to claim 1, characterized in that: It also includes a bottom cover and an insulating plate. The bottom cover is arranged below the center seat and connected to the center seat. The insulating plate and the control board are both arranged inside the bottom cover and the center seat. The insulating plate is located above the control board.

5. The fan with a wind wheel pressure outer rotor according to claim 4, characterized in that: The bottom of the center seat and the insulating plate are both provided with through holes, and the stator is provided with pins, which pass through the through holes and are connected to the control board.

6. The fan with a wind wheel pressure outer rotor according to claim 4, characterized in that: The bottom cover is provided with a wire sleeve, and the wire sleeve is used for leading out the circuit of the control board.

7. The fan with a wind wheel pressure outer rotor according to claim 4, characterized in that: The bottom cover is connected to the center seat through bolt holes and bolts, and bolt holes are also correspondingly provided on the control board and the insulating board.

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