Fan blade mounting structure of desktop fan

Abstract

The utility model relates to a fan blade installation structure of a desktop fan, which comprises a front net, a rear net cover and a fan blade assembly, the front net and the rear net cover are connected to define an installation cavity, the fan blade assembly is arranged in the installation cavity, the fan blade assembly comprises a motor stator, a fan blade support and fan blades, the motor stator is installed and fixed on the rear net cover, and the fan blades are fixed on the fan blade support. The fan blade support can rotate relative to the motor stator, magnets are arranged on the fan blade support, and the fan blades are connected to the fan blade support in a buckled mode. The fan blades and the fan blade support are connected in a buckling mode, when the fan blades need to be cleaned, the fan blades can be easily detached, and a user can conveniently clean the fan blades.

Description

[Technical field]

[0001] The utility model relates to a fan blade mounting structure of a desktop fan. [Background technology]

[0002] In our daily life, electric fans are an indispensable tool for our life. Every hot summer, we have to use electric fans to bring us some coolness. The existing desktop fans generally use brushless DC motors, which belong to the outer rotor structure. The motor shaft is inlaid in the middle. The motor shaft is generally locked directly on the stator bearing through a retaining ring. During use, more and more dust will accumulate, and a large number of bacteria in the air will also adhere to it. If it is not cleaned for a long time, it will seriously affect the performance of the fan and endanger human health. Most of the existing fans cannot be cleaned. Only a few can remove the front net. If it cannot be removed, it can only be wiped with a cloth and cannot be rinsed with water, so it cannot be completely cleaned.

[0003] Therefore, it is necessary to make further improvements. [Contents of the utility model]

[0004] The purpose of the utility model is to overcome the above problems. We provide a fan blade mounting structure for a desktop fan. The desktop fan adopting the mounting structure has the advantage that the fan blades are easy to disassemble.

[0005] To achieve the above-mentioned purpose, the utility model provides a fan blade mounting structure for a desktop fan, which includes a front net, a rear net cover and a fan blade assembly. The front net and the rear net cover are connected to form a mounting cavity. The fan blade assembly is arranged in the mounting cavity. The fan blade assembly includes a motor stator, a fan blade bracket and fan blades. The motor stator is fixedly mounted on the rear net cover. The fan blade bracket can rotate relative to the motor stator. A magnet is arranged on the fan blade bracket. The fan blade is buckled on the fan blade bracket.

[0006] In one or more embodiments, the fan blade bracket has a connecting portion, the connecting portion is provided with a first buckling structure, the fan blade has a cover portion sleeved on the connecting portion, and the cover portion is provided with a second buckling structure that cooperates with the first buckling structure.

[0007] In one or more embodiments, the first buckle structure includes two buckle ears symmetrically arranged on the left and right, a buckle interface is provided on the buckle ears, the cover part has an avoidance opening for the buckle ears to pass through, and the cover part is provided with an elastic buckle plate on the front side of the avoidance opening, and the elastic buckle plate is provided with a barb that cooperates with the buckle interface for buckling.

[0008] In one or more embodiments, the connection portion is provided with a positioning column extending forward, and the cover portion is provided with a positioning hole that cooperates with the positioning column.

[0009] In one or more embodiments, the shaft center of the motor stator has an assembly hole, the rear mesh cover has an axial connection portion extending into the assembly hole, a bearing is provided in the axial connection portion, and the fan blade bracket has a connecting shaft body connected to the bearing.

[0010] In one or more embodiments, the rear end of the connecting shaft body has an anti-dropping ring, and the connecting shaft body is connected to oil seals at the front and rear sides of the bearing.

[0011] Compared with the background technology, the utility model has the following effects: the fan blades and the fan blade brackets are connected by a buckle connection, and when the fan blades need to be cleaned, the fan blades can be easily disassembled, which is convenient for users to clean.

Brief Description of the Drawings

[0012] Figure 1 This is a cross-sectional view of the fan blade assembly of this embodiment installed in the installation cavity;

[0013] Figure 2 Schematic diagram of the structure of the fan blade assembly of this embodiment;

[0014] Figure 3 An exploded view of the fan blade assembly of this embodiment. [Specific implementation method]

[0015] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0016] Please see Figure 1-3 The present application provides a fan blade installation structure for a desktop fan, which includes a front net 1, a rear net cover 2 and a fan blade assembly. The front net 1 and the rear net cover 2 are connected to form an installation cavity. The fan blade assembly is arranged in the installation cavity. The fan blade assembly includes a motor stator 3, a fan blade bracket 4 and a fan blade 5. The motor stator is fixed on the rear net cover 2. The fan blade bracket 4 can rotate relative to the motor stator 4. A magnet is arranged on the fan blade bracket 4. The fan blade 5 is buckled on the fan blade bracket 4. The fan blade is installed by buckling, which has the advantages of easy installation and disassembly, and can facilitate users to disassemble the fan blade for cleaning later. Specifically, the fan blade bracket 4 has a connecting portion, and the connecting portion is provided with a first buckling structure. The fan blade 5 has a cover portion 51 sleeved on the connecting portion, and the cover portion is provided with a second buckling structure that is buckled with the first buckling structure. The connection between the cover portion and the connecting portion can strengthen the tightness of the connection between the fan blade and the fan blade bracket, and strengthen the synchronization during rotation.

[0017] The first buckle structure includes two buckle ears 6 symmetrically arranged on the left and right, and a buckle interface 7 is provided on the buckle ears. The cover part 51 is provided with an avoidance opening 8 for the buckle ears to pass through, and the cover part is provided with an elastic buckle plate 9 on the front side of the avoidance opening. The elastic buckle plate is provided with a barb 10 that is buckled with the buckle interface. When disassembling, the user presses the elastic buckle plate to deform it, disengages the barb from the buckle interface, and then pulls out the fan blade.

[0018] In order to further simplify the process of disassembling the fan blades, the elastic buckle plate is arranged on the inner side of the avoidance opening. The two elastic buckle plates form a structure for the user to apply force inward with two fingers, making it easier for the user to disassemble the fan blades.

[0019] The connection portion is provided with a positioning column 11 extending forward, and the cover portion is provided with a positioning hole 12 cooperating with the positioning column. The positioning column and the positioning hole can further enhance the connection tightness and rotation synchronization between the fan blade and the fan blade bracket.

[0020] The axis of the motor stator 3 has an assembly hole, and the rear mesh cover 2 has an axial connection part 13 extending into the assembly hole. The axial connection part is tightly matched with the assembly hole to fix the motor stator on the rear mesh cover. A bearing 14 is provided in the axial connection part, and the bearing is tightly connected with the axial connection part. The fan blade bracket 4 has a connecting shaft 15 connected to the bearing, and the fan blade bracket can rotate relative to the motor stator with the help of the bearing.

[0021] The rear end of the connecting shaft 15 is provided with an anti-dropping ring 16 to prevent the fan blade bracket from being detached from the bearing, and the connecting shaft is connected with oil seals 17 at the front and rear sides of the bearing.

[0022] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed in the present invention should be included in the protection scope recorded in the claims.

Claims

1. A fan blade mounting structure for a desktop fan, characterized in that: The invention comprises a front net (1), a rear net cover (2) and a fan blade assembly. The front net (1) and the rear net cover (2) are connected to form an installation cavity. The fan blade assembly is arranged in the installation cavity. The fan blade assembly comprises a motor stator (3), a fan blade bracket (4) and a fan blade (5). The motor stator is fixedly mounted on the rear net cover (2). The fan blade bracket (4) can rotate relative to the motor stator (3). A magnet is arranged on the fan blade bracket (4). The fan blade (5) is buckled on the fan blade bracket (4).

2. The blade mounting structure of a desktop fan according to claim 1, characterized in that: The fan blade bracket (4) has a connecting portion, the connecting portion is provided with a first buckling structure, the fan blade (5) has a cover portion (51) sleeved on the connecting portion, and the cover portion is provided with a second buckling structure that is buckled with the first buckling structure.

3. The blade mounting structure of a desktop fan according to claim 2, characterized in that: The first buckle structure comprises two buckle ears (6) symmetrically arranged on the left and right, a buckle interface (7) being provided on the buckle ears, a clearance opening (8) for the buckle ears to pass through being opened on the cover part (51), and an elastic buckle plate (9) being provided on the cover part at the front side of the clearance opening, and the elastic buckle plate being provided with a barb (10) for buckling with the buckle interface.

4. A blade mounting structure for a desktop fan according to claim 2 or 3, characterized in that: The connection portion is provided with a positioning column (11) extending forward, and the cover portion is provided with a positioning hole (12) cooperating with the positioning column.

5. The blade mounting structure of a desktop fan according to claim 1, characterized in that: The motor stator (3) has an assembly hole at its axis, the rear mesh cover (2) has an axial connection portion (13) extending into the assembly hole, a bearing (14) is arranged in the axial connection portion, and the fan blade bracket (4) has a connecting shaft (15) connected to the bearing.

6. The blade mounting structure of a desktop fan according to claim 5, characterized in that: The rear end of the connecting shaft body (15) is provided with an anti-dropping clamping ring (16), and the connecting shaft body is connected with oil seals (17) at the front and rear sides of the bearing.

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