Fan

Abstract

The utility model discloses a fan. The fan comprises a motor, a mounting disc, a support, an outer frame, a fixing block, a blade handle and fan blades. The motor is a permanent magnet synchronous motor and is provided with a rotating shaft and a fixed disc; a taper hole is formed in the fixed disc; the rotating shaft is also provided with a conical surface matched with the taper hole; a fixing column is arranged in the center of the fixing disc, and the mounting disc is mounted on the fixing column; a plurality of supports are installed on the outer side face of the installation disc and fixed to the outer frame at the same time. The motor is provided with a cover body, the cover body is provided with a semicircular mounting groove and a screw hole, one side of a cylindrical blade handle is movably fixed on the mounting groove, and the other side of the cylindrical blade handle is matched with the fan blade; the fixing block is arranged at the position of the mounting groove, the fixing block is also provided with a mounting groove, and the screw hole is aligned with the mounting groove and the screw hole in the cover body; and a groove is formed in the mounting disc. According to the technical scheme, the size of the whole draught fan is reduced, and meanwhile sealing of the draught fan is optimized.

Description

Technical Field

[0001] The utility model relates to an industrial product, in particular to a fan. Background Art

[0002] The fan is a product that is frequently used in industry. Currently, the fan is mainly designed with motors, brackets, hubs, blade stalks, blades and other components. The hub occupies a large volume of the entire fan, and the rotating shaft inside the motor and the mounting plate on the motor are matched with circular surfaces, which is not conducive to the sealing of the two. Utility Model Content

[0003] The utility model aims to provide a fan, and solves the technical problem of reducing the volume of the entire fan and optimizing the sealing of the fan.

[0004] The fan includes a motor, a mounting plate, a bracket, an outer frame, a fixing block, a blade stalk, and a fan blade;

[0005] The motor is a permanent magnet synchronous motor, which has a rotating shaft and a fixed disk; the fixed disk has a tapered hole, and the rotating shaft also has a tapered surface that matches the tapered hole; the fixed disk has a fixed column at the center position, and the mounting disk is installed on the fixed column; a plurality of brackets are installed on the outer side of the mounting disk, and the above brackets are fixed on the outer frame at the same time; the above motor has a cover body, and the cover body has a semicircular mounting groove and a screw hole, one side of the cylindrical petiole is movably fixed on the above mounting groove, and the other side is configured with the fan blade; the fixing block is arranged at the position of the above mounting groove, and the fixing block is It also has mounting grooves and screw holes aligned with the mounting grooves and screw holes on the cover body; the mounting plate has a groove inside, and the bracket is installed on the outer wall of the mounting plate, the bracket is a cylindrical rod structure, and the outer frame is a hollow circular ring structure; a disc-shaped grid piece is arranged on the outer frame, which is arranged opposite to the bracket; the fixed column has a threading hole, and the threading hole is configured to configure the electric control line and the internal stator of the motor; the grid piece includes a baffle rod arranged in a spiral curve, and the baffle rod has a plurality of connecting rods with a straight rod structure evenly arranged.

[0006] There are eight of them on the bracket and they are evenly arranged.

[0007] The cover body is provided with four fixing blocks, and the number of the petiole and the number of the fan blades is also four.

[0008] The beneficial effects of the utility model are as follows: the motor adopts a permanent magnet synchronous motor, which drives the fan blades to rotate through the outer rotor, and has a good sealing effect; it is used to drive the blade stalk and the fan blades to rotate through the cover of the motor, thereby eliminating the need for a wheel hub, optimizing the components and structure of the product, and significantly improving the practicability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a schematic diagram of the fan;

[0010] Figure 2 yes Figure 1 A schematic diagram of the fan from another angle;

[0011] Figure 3 yes Figure 1 Schematic diagram of the fan after removing the grid;

[0012] Figure 4 is a schematic diagram of the motor;

[0013] Figure 5 This is a schematic diagram of the motor from another angle;

[0014] Figure 6 is a cross-sectional view of the motor;

[0015] Figure 7 yes Figure 3 Schematic diagram of the fan without the motor;

[0016] Figure 8 is a schematic diagram of a fixed block;

[0017] In the picture

[0018] 1. Motor, 11. Rotating shaft, 12. Fixed plate, 121. Conical hole, 122. Fixed column, 1221. Threading hole, 13. Cover, 131. Mounting slot, 132. Screw hole;

[0019] 2. Mounting plate, 21. Groove;

[0020] 3. Bracket;

[0021] 4. Frame;

[0022] 5. Fixed block;

[0023] 6. Petiole;

[0024] 7. Wind blade;

[0025] 8. Grid member, 81. Stop rod, 82. Connecting rod. DETAILED DESCRIPTION

[0026] Please refer to Figures 1 to 8The fan in the figure is mainly designed with a motor 1, a mounting plate 2, multiple brackets 3, an outer frame 4, four fixing blocks 5, four petioles 6, and four fan blades 7; the number of the above components can be adjusted according to actual conditions, the motor 1 is used to drive the fan blades 7 to rotate, the mounting plate 2 is used to fix the entire motor 1, the bracket 3 is used to fix the motor 1 on the outer frame 4, the outer frame 4 is used to form the external components of the fan, the fixing block 5 is used to flexibly adjust the angle of the petiole 6, and the petiole 6 is used to cooperate with the fan blade 7 to adjust the angle of the fan blade 7. In actual applications, the above components can be further optimized or other components can be added.

[0027] The motor 1 in the figure adopts a permanent magnet synchronous motor 1, which has an inner stator and an outer rotor structure, that is, an integral structure in which the internal components are fixed and the external components rotate. The motor 1 is designed with components such as a rotating shaft 11 and a fixed disk 12, wherein a tapered hole 121 is designed inside the fixed disk 12, and the rotating shaft 11 also has a corresponding tapered surface so as to be assembled with the above-mentioned tapered hole 121, so as to realize the oblique pressure assembly of the rotating shaft 11 and the fixed disk 12, and ensure the sealing and rotation stability of the rotating shaft 11 and the fixed disk 12. An extended and protruding fixed column 122 structure is designed at the center position of the above-mentioned fixed disk 12, so that it is convenient to install the mounting disk 2 on the fixed column 122, and at the same time, since a threading hole 1221 is designed on the fixed column 122, the electric control line and the inner stator configuration of the motor 1 are configured in the threading hole 1221. The motor 1 is designed with a cover body 13 at a position cooperating with the petiole 6 . The cover body 13 is designed with four evenly arranged semicircular mounting grooves 131 , and screw holes 132 are provided beside the mounting grooves 131 .

[0028] The mounting plate 2 in the figure is a bowl-like structure as a whole, and its interior is hollow to form a groove 21 structure for easy configuration of the fixing column 122. At the same time, the outer wall of the mounting plate 2 is a structure that protrudes and extends outward, so that it is convenient to install the bracket 3 on the outer wall.

[0029] The bracket 3 in the figure is a cylindrical rod structure, so that the entire motor 1 is fixed on the outer frame 4. As shown in the figure, eight brackets 3 are designed and evenly arranged. In actual application, the structure of the above brackets 3 can be adjusted.

[0030] The outer frame 4 in the figure is an existing component, which is hollow inside and is designed as an arc-shaped structure as a whole. A disc-shaped grid member 8 is arranged on the outer frame 4, so that it is arranged in a relative direction with the bracket 3. The grid member 8 adopts a combination design of a blocking rod 81 and a connecting rod 82, wherein the blocking rod 81 is arranged in the shape of a spiral curve as a whole, and the connecting rod 82 adopts a plurality of evenly arranged straight rod structures.

[0031] The fixing block 5 in the figure adopts a square-like structural design and is designed with four evenly arranged. It is designed with two semicircular mounting grooves 131 on the surface facing the cover 13, and has four screw holes 132 next to the mounting grooves 131, so that it is aligned with the mounting grooves 131 and screw holes 132 on the cover 13, and the petiole 6 is firmly fixed by bolts. When the angle of the petiole 6 needs to be adjusted, the bolts are loosened, and then the petiole 6 is rotated, and then the bolts are tightened after rotation.

[0032] The number of the petioles 6 in the figure is consistent with the number of the fixing blocks 5 , and the petioles 6 are cylindrical in structure as a whole, one side of which is movably fixed between the two mounting grooves 131 , and the other side is fixed to the fan blade 7 .

[0033] The fan blades 7 in the figure are existing components and the number thereof is kept consistent with the number of the petioles 6 . The fan blades 7 are fixed on the petioles 6 and rotate as the petioles 6 rotate.

[0034] The specific embodiments described above are only used to explain the present technical solution and are not used to limit the present technical solution. In the description of the present technical solution, it should be noted that the terms such as "upper" and "inner" indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present technical solution and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present technical solution.

[0035] At the same time, in the description of this technical solution, it should be noted that, unless otherwise clearly specified and limited, the terms "fixed" and "matched" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this technical solution can be understood according to specific circumstances.

[0036] Although embodiments of the present technical solution have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present technical solution, and that the scope of the present technical solution is defined by the appended claims and their equivalents.

Claims

1. A fan, characterized in that: It comprises a motor (1), a mounting plate (2), a bracket (3), an outer frame (4), a fixing block (5), a petiole (6), and a fan blade (7); The motor (1) is a permanent magnet synchronous motor, comprising a rotating shaft (11) and a fixing plate (12); the fixing plate (12) has a tapered hole (121), and the rotating shaft (11) also has a tapered surface that matches the tapered hole (121); the fixing plate (12) has a fixing column (122) at the center, and the mounting plate (2) is mounted on the fixing column (122); a plurality of brackets (3) are mounted on the outer side surface of the mounting plate (2), and the brackets (3) are simultaneously fixed on the outer frame (4); the motor (1) has a cover body (13), and the cover body (13) has a semicircular mounting groove (131) and a screw hole (132); one side of a cylindrical blade stalk (6) is movably fixed on the mounting groove (131), and the other side is configured with a fan blade (7); a fixing block (5) is arranged at the position of the mounting groove (131), The fixing block (5) also has a mounting groove (131) and a screw hole (132) which are aligned with the mounting groove (131) and the screw hole (132) on the cover body (13); the mounting plate (2) has a groove (21) inside, the bracket (3) is mounted on the outer wall of the mounting plate (2), the bracket (3) is a cylindrical rod structure, and the outer frame (4) is a hollow annular structure; a disc-shaped grid member (8) is arranged on the outer frame (4), and is arranged opposite to the bracket (3); the fixing column (122) has a threading hole (1221), and the threading hole (1221) has an electric control wire and an inner stator of the motor (1); the grid member (8) includes a blocking rod (81) arranged in a spiral curve, and the blocking rod (81) has a plurality of evenly arranged straight rod structure connecting rods (82).

2. The fan according to claim 1, characterized in that: The brackets (3) are eight and are evenly arranged.

3. The fan according to claim 2, characterized in that: The cover body (13) is provided with four fixing blocks (5), and there are also four petioles (6) and four fan blades (7).

Images