Fan outer frame embedded with steel sheets

Abstract

The utility model discloses a fan outer frame embedded with steel sheets, which belongs to the technical field of fan outer frames and comprises an outer frame main body and a plurality of steel embedded sheets embedded on the peripheral side of the outer frame main body to improve the strength of the outer frame main body. The outer frame body comprises a frame body with the bottom face in a regular polygon shape, a circular groove formed in the middle of the frame body and coaxial with the frame body and a bottom frame, and through grooves are formed in the centers of the side edges of the frame body. And the steel insert is fixedly inserted into the through groove. A proper amount of steel sheets are embedded in the weak position of the frame body of the fan outer frame to improve the strength of the frame body, and the internal volume of the fan outer frame is expanded on the basis of controlling the weight of the fan outer frame to reach the standard and guaranteeing the overall strength of the fan outer frame.

Description

Technical Field

[0001] The utility model belongs to the technical field of fan outer frames, and in particular relates to a fan outer frame with embedded steel sheets. Background Art

[0002] Cooling fans are commonly used heat dissipation devices in electromechanical equipment such as computers and charging piles. Their main function is to discharge the heat accumulated inside the equipment, thereby maintaining the normal operating temperature of the equipment.

[0003] Since the cooling fan is built into the electromechanical equipment, the requirements for the size and weight of the cooling fan are gradually increased, and the cooling fan tends to be miniaturized and integrated.

[0004] In the prior art, the size and weight of the cooling fan are directly affected by the fan frame. If the fan frame is made of steel, the frame is too heavy. If the fan frame is made of plastic, the frame is light. However, in order to meet the strength requirements of the fan frame, the thickness of the plastic frame is greater than that of the steel frame. When the size remains unchanged, the internal space is small. Utility Model Content

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a fan outer frame with steel sheets embedded therein, comprising an outer frame body, and a plurality of steel inserts embedded in the peripheral side of the outer frame body to improve its strength;

[0006] The outer frame body comprises a frame body with a regular polygonal bottom surface, a circular groove provided in the middle of the frame body and coaxial with the frame body, and a bottom frame, a through groove is provided at the center of each side of the frame body, and a groove is provided on the inner circumference of the through groove;

[0007] The steel insert comprises a steel sheet body and a protrusion formed integrally with the steel sheet body, and the protrusions are engaged with the grooves one by one to fix the steel insert inserted into the through slot.

[0008] Specifically, from any edge of the frame to the through groove close to the edge, the wall thickness of the frame gradually becomes thinner.

[0009] Specifically, the steel sheet body is bent into an arc shape, and the curvature of the arc shape is consistent with the curvature of the inner arc surface of the circular groove.

[0010] Specifically, the protrusion includes a first protrusion, which is formed by extending downward from the lower end of the steel sheet body, and the groove includes a first groove, which is formed by extending downward from the bottom of the through groove, and the first protrusion cooperates with the first groove.

[0011] Specifically, the first groove opens toward the outer periphery of the frame body, and the frame body extends toward the through groove to form a limiting portion located outside the steel insert.

[0012] Specifically, the protrusion includes a second protrusion, which is formed by extending and bending the upper end of the steel sheet body to both sides, and the groove includes a second groove, and the second groove cooperates with the second protrusion.

[0013] Specifically, the outer frame body is made of plastic material.

[0014] Compared with the prior art, the technical solution provided by the utility model has the following advantages:

[0015] An appropriate amount of steel sheets are embedded in the weak parts of the fan frame to improve the frame strength. The strength is not increased solely by increasing the frame thickness. On the basis of controlling the fan frame weight to meet the standard and ensuring the overall strength of the fan frame, the inner diameter of the frame is increased to the maximum extent, the internal volume of the fan frame is expanded, and the stator winding space is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of the fan outer frame with steel sheets embedded in the utility model;

[0017] Figure 2 This is an exploded view of the fan frame with steel sheets embedded in the utility model;

[0018] Figure 3 This utility model Figure 2 A partial enlarged view of the middle part;

[0019] Figure 4 It is a structural diagram of the steel inlay in the utility model.

[0020] As shown in the figure: 1. outer frame body; 11. frame body; 12. circular groove; 13. bottom frame; 14. through groove; 15. groove; 151. first groove; 152. second groove; 16. limiting part; 2. steel insert; 21. steel sheet body; 22. protrusion; 221. first protrusion; 222. second protrusion. DETAILED DESCRIPTION

[0021] For ease of understanding, the fan frame with embedded steel sheets is described below in conjunction with embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation and positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] like Figure 1 to Figure 2 As shown, a fan outer frame with embedded steel sheets includes an outer frame body 1 made of plastic material, the outer frame body 1 includes a frame body 11, a circular groove 12, and a bottom frame 13, the frame body 11 is a regular prism with a bottom surface in a regular quadrilateral, the frame body 11 has a first end and a second end arranged opposite to each other, and a circular groove 12 for accommodating fan blades is formed from the middle of the first end to the second end, the circular groove 12 has transparent ends, the circular groove 12 is coaxial with the frame body 11, and a bottom frame 13 is arranged in the groove of the circular groove 12 at the second end, and the bottom frame 13 is integrally formed with the frame body 11, and is used to install the stator winding, PCB board, fan shaft and fan blades of the fan.

[0025] like Figure 2 As shown, through grooves 14 are provided at the centers of the four sides of the frame 11. From any edge of the frame 11 to the through groove 14 adjacent to the edge, the wall thickness of the frame 11 gradually becomes thinner. That is to say, in this embodiment, the center of each side of the frame 11 is the weakest part of the frame wall thickness. Therefore, grooving and adding steel inserts 2 at the weak part can improve the strength of the fan frame without increasing the thickness of the frame 11. When the external dimensions of the fan frame remain the same, the inner diameter of the circular groove 12 can be increased to expand the internal volume of the fan frame. Generally speaking, the thickness of the frame 11 reduced at the weak part is equal to the increase in the radius of the circular groove 12.

[0026] like Figures 2 to 3As shown, a steel insert 2 is inserted into each through groove 14 in a one-to-one manner. The overall thickness of the steel insert 2 is consistent. The steel sheet body 21 is bent into an arc shape, and the curvature of the arc is consistent with the curvature of the inner arc surface of the circular groove 12. The frame 11 extends toward the through groove 14 to form a limiting portion 16. The inner wall of the limiting portion 16 is an arc surface. After the steel insert 2 is inserted into the through groove 14, the inner wall of the steel insert 2 is connected with the inner wall of the circular groove 12, and the outer wall of the limiting portion 16 is flush with the outer wall of the frame 11, and the inner wall of the limiting portion 16 is close to the outer wall of the steel insert 2.

[0027] like Figure 4 As shown, the steel insert 2 includes a steel sheet body 21 and a protrusion 22 integrally formed with the steel sheet body 21, the protrusion 22 includes a first protrusion 221 and a second protrusion 222, the first protrusion 221 is formed by extending downward from the middle of the lower end of the steel sheet body 21, and the second protrusion 222 is formed by extending outward from both sides of the upper end of the steel sheet body 21 and bending to be parallel to the side walls of the through groove 14.

[0028] like Figure 3 As shown, the through groove 14 is a groove body with three-way openings, one of which is upward, another is toward the outer periphery of the frame body 11 and is interconnected with the circular groove 12, and the remaining opening is toward the outer periphery of the frame body 11; a groove 15 is provided on the inner periphery of the through groove 14, and the groove 15 includes a first groove 151 and a second groove 152. The first groove 151 is formed by extending downward from the middle part of the groove bottom of the through groove 14. The first groove 151 is a groove body with two-way openings, one of which is upward, and the other is toward the outer periphery of the frame body 11. The second groove 152 is provided at the top of the limiting portion 16, and the upward opening of the second groove 152 is also toward the inner periphery of the frame body 11.

[0029] like Figures 1 to 4 As shown, as the steel insert 2 is inserted into the through slot 14 , the first protrusion 221 is inserted into the first groove 151 , and the two cooperate with each other, and the second protrusion 222 is inserted into the second groove 152 , and the two also cooperate with each other, thereby fixing the steel insert 2 in the through slot 14 .

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit them. Although the utility model has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents, and 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 frame with embedded steel sheets, characterized in that: It includes an outer frame body, and a plurality of steel inserts embedded in the peripheral side of the outer frame body to improve its strength; The outer frame body comprises a frame body with a regular polygonal bottom surface, a circular groove provided in the middle of the frame body and coaxial with the frame body, and a bottom frame, a through groove is provided at the center of each side of the frame body, and a groove is provided on the inner circumference of the through groove; The steel insert comprises a steel sheet body and a protrusion formed integrally with the steel sheet body, and the protrusions are engaged with the grooves one by one to fix the steel insert inserted into the through slot.

2. A fan frame with embedded steel sheets as claimed in claim 1, characterized in that: From any edge of the frame to the through groove close to the edge, the wall thickness of the frame gradually becomes thinner.

3. A fan frame with embedded steel sheets as claimed in claim 1, characterized in that: The steel sheet body is bent into an arc shape, and the curvature of the arc shape is consistent with the curvature of the inner arc surface of the circular groove.

4. A fan frame with embedded steel sheets as claimed in claim 1, characterized in that: The protrusion includes a first protrusion, which is formed by extending downward from the lower end of the steel sheet body, and the groove includes a first groove, which is formed by extending downward from the bottom of the through groove, and the first protrusion cooperates with the first groove.

5. A fan frame with embedded steel sheets as claimed in claim 4, characterized in that: The first groove opens toward the outer periphery of the frame body, and the frame body extends toward the through groove to form a limiting portion located outside the steel insert.

6. A fan frame with embedded steel sheets as claimed in claim 1, characterized in that: The protrusion includes a second protrusion, which is formed by extending and bending the upper end of the steel sheet body to both sides, and the groove includes a second groove, and the second groove cooperates with the second protrusion.

7. A fan frame with embedded steel sheets as claimed in claim 1, characterized in that: The outer frame body is made of plastic material.

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