Frame and cushion integrated fan outer frame

Abstract

The utility model discloses a frame and pad integrated fan outer frame, which belongs to the technical field of fan outer frames, is integrally of a prism structure, and comprises an outer frame main body and a plurality of frame pads which are annularly distributed on the periphery of the outer frame main body and are used for reducing vibration and noise, the interior of the outer frame body is hollowed out and used for containing a fan, outer arc faces and planes which are staggered are arranged on the outer wall of the outer frame body, and the planes are located between the adjacent frame pads. The frame pad is provided with an outer side and an inner side which are oppositely arranged, the outer side protrudes away from the outer frame body to form a corner angle of a prism structure, and the inner side is an inner arc face and attached to the outer arc face of the outer frame body. Mortise and tenon joint structures which are mutually embedded to fix the relative positions of the frame pad and the outer frame main body are arranged between the frame pad and the outer frame main body. The outer frame and the frame pad of the fan are integrated, the vibration and noise reduction effect is improved, and the fan blades are convenient to detach and replace.

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 an integrated frame pad. Background Art

[0002] In the prior art, in order to reduce the impact of fan vibration on the surrounding environment, a flexible pad is set at the bottom of the fan. The Chinese patent with the announcement number CN108809019A discloses a gasket for a motor housing, which includes a gasket body, the gasket body is square in shape, the four corners of the gasket body are rounded, two circular holes are provided at both ends of the two diagonals of the gasket body, two groups of parallel pores are provided in one diagonal direction of the gasket body, each group of pores has five pores, and the surface of the gasket body is coated with a layer of metal tin. It is made of nitrile rubber.

[0003] Among them, the flexible pad is separated from the fan casing. When the fan is installed, the flexible pad cannot be installed at the same time. Noise and vibration will still be generated due to direct contact with the fan. At the same time, the flexible pad is only set at the bottom of the fan. The surrounding area of ​​the fan except the bottom will also transmit vibration due to contact with the equipment, causing noise and wear. After the fan is assembled into the equipment, the vibration and noise affect the function and efficiency of the equipment. Utility Model Content

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a fan outer frame with integrated frame and gasket, which is a prismatic structure as a whole, including an outer frame body, and a plurality of frame gaskets arranged around the outer periphery of the outer frame body for reducing vibration and noise;

[0005] The interior of the outer frame body is hollowed out for placing the fan, and the outer wall of the outer frame body is provided with mutually staggered outer arc surfaces and planes, and the planes are located between adjacent frame pads;

[0006] The frame pad has an outer side and an inner side that are arranged opposite to each other, the outer side is away from the outer frame body and protrudes to form the corners of the prism structure, and the inner side is an inner curved surface and fits the outer curved surface of the outer frame body;

[0007] A mortise and tenon structure that fits in with each other to fix the relative positions of the frame pad and the outer frame body is provided between the frame pad and the outer frame body.

[0008] Specifically, the frame pad is made of flexible material.

[0009] Specifically, the flexible material is rubber.

[0010] Specifically, the outer frame body is a plastic part.

[0011] Specifically, the mortise and tenon structure includes at least two inner grooves arranged along the longitudinal direction and a limit block arranged on the outer wall of the outer frame body. The inner grooves and the limit blocks are correspondingly engaged with each other to limit the longitudinal movement of the frame pad relative to the outer frame body.

[0012] Specifically, the inner slot includes a U-shaped slot with a semicircular bottom and a straight slot opening, and the limiting block includes a U-shaped limiting block with the same shape as the U-shaped slot.

[0013] Specifically, the inner walls on both sides of the inner slot expand inwardly to form ear slots, and the outer walls on both sides of the limit block protrude to form ear blocks, and the ear slots and the ear blocks correspond to each other one by one and are embedded in each other.

[0014] Specifically, the outer frame body includes an upper frame and a lower frame, the upper frame and the lower frame are fixed to each other via a buckling structure, and the buckling structure can be opened and closed by relative rotation between the upper frame and the lower frame along the axial direction.

[0015] Specifically, the buckling structure protrudes from the outer wall of the outer frame body, and a groove is provided on the inner side for embedding the buckling structure.

[0016] Compared with the prior art, the technical solution provided by the utility model has the following advantages:

[0017] 1. The outer frame of the fan and the rubber frame pad form an integrated structure, which can reduce vibration and noise before, during and after installation. The integrated outer frame of the fan is a polygonal column structure, and the frame pad is located at the corners of the polygonal column that are most susceptible to vibration, impact and wear, thereby improving the vibration reduction and noise reduction effect.

[0018] 2. The frame pad and the outer frame body are interlocked with each other using mortise and tenon structure without glue. The fan outer frame is easy to assemble and has a long service life. The frame pad is easy to disassemble and replace after wear. At the same time, the fan blades can also be easily replaced, which is low-cost and economical and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the overall structural diagram of the blower outer frame of the utility model;

[0020] Figure 2 It is an exploded view of the outer frame of the blower in the utility model;

[0021] Figure 3 It is a structural diagram of the frame pad of the blower outer frame of the utility model;

[0022] Figure 4 It is a main structural diagram of the outer frame of the blower in the utility model.

[0023] As shown in the figure: 1. outer frame body; 11. upper frame; 12. lower frame; 13. L-shaped groove; 2. frame pad; 21. outer side; 22. inner side; 23. avoidance hole; 3. mortise and tenon structure; 31. inner groove; 311. first U-shaped groove; 312. groove; 313. second U-shaped groove; 314. first screw hole; 315. second screw hole; 316. ear groove; 32. limit block; 321. first U-shaped limit block; 322. second U-shaped limit block; 323. buckling structure; 3231. buckling head; 3232. stop block; 3233. bottom block; 324. third screw hole; 325. fourth screw hole; 326. ear block. DETAILED DESCRIPTION

[0024] For ease of understanding, the fan outer frame with integrated frame pad 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.

[0025] 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.

[0026] 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.

[0027] like Figure 1 to Figure 2 As shown, the fan outer frame in this embodiment includes an outer frame body and a frame pad, and four frame pads are evenly distributed on the outer circumference of the outer frame body, thereby forming a fan outer frame with an overall quadrangular prism structure; the frame pad is made of rubber material, and since the rubber material is elastic, it has the effect of reducing vibration and noise when the motor is running; the frame pad has an outer side and an inner side that are relatively arranged, and the outer side is raised away from the outer frame body to form the edges and corners of the quadrangular prism structure, and the four long strips of frame pads respectively constitute the four edges and corners of the quadrangular prism, and the inner side is an inner arc surface.

[0028] A mortise and tenon structure that fits together to fix the relative positions of the frame pad and the outer frame body is provided between the frame pad and the outer frame body. The mortise and tenon structure in this embodiment includes inner slots and limit blocks that fit together.

[0029] The mortise and tenon structure includes at least two inner slots arranged along the longitudinal direction and a limit block arranged on the outer wall of the outer frame body. The inner slots and the limit blocks are correspondingly engaged with each other to limit the longitudinal movement of the frame pad relative to the outer frame body.

[0030] like Figure 3 As shown, three inner grooves are provided on the inner arc surface on the inner side, and the three inner grooves are arranged in the longitudinal direction. Along the longitudinal direction, the three inner grooves are successively a first U-shaped groove, a groove, and a second U-shaped groove, wherein the groove bottoms of the first U-shaped groove and the second U-shaped groove are both semicircular, and the groove openings are both straight sections, a first screw hole penetrating to the end face of the frame pad is provided on the top wall of the first U-shaped groove, a second screw hole reaching the end face of the frame pad is provided on the groove bottom of the second U-shaped groove, and the groove walls on both sides of the first U-shaped groove and the second U-shaped groove expand inward to form ear grooves, and the groove is located in the middle position of the inner side.

[0031] like Figure 2 , Figure 4 As shown, the outer frame body is a plastic part with a hollow interior for placing the fan. The outside is a cylinder, and the outer wall of the cylinder is provided with outer arc surfaces and planes that are staggered with each other. The planes are located between adjacent frame pads, and the inner sides of the frame pads are fitted with the outer arc surfaces of the outer frame body; the outer frame body includes an upper frame, a lower frame, and a limit block arranged on the outer wall of the outer frame body. The upper frame and the lower frame are overlapped with each other in the longitudinal direction, and both are provided with an integrally formed fan bottom frame inside. The fan bottom frame is used to support the fan and serves as an installation carrier for the internal parts of the fan.

[0032] Continue as Figure 4 As shown, the limit block includes a first U-shaped limit block, a second U-shaped limit block and a buckling structure, the buckling structure protrudes from the outer wall of the outer frame body, and the groove is engaged with the buckling structure.

[0033] Continue as Figure 4 As shown, four first U-shaped limit blocks protruding outward are arranged on the top outer wall of the upper frame, the four first U-shaped limit blocks are integrally formed with the upper frame, the first U-shaped limit block is consistent with the shape of the first U-shaped groove, and the first U-shaped limit block is embedded in the first U-shaped groove, a third screw hole is opened on the first U-shaped limit block, the first screw hole and the third screw hole are locked with connecting bolts to fix the fan outer frame as a whole to the machine, the height of the first U-shaped groove is greater than the height of the first U-shaped limit block, and there is a gap at the lower end of the first U-shaped groove.

[0034] Continue as Figure 4As shown, four second U-shaped limit blocks protruding outward are arranged on the bottom outer wall of the lower frame, and the four second U-shaped limit blocks are integrally formed with the lower frame. The second U-shaped limit block is consistent in shape with the second U-shaped groove, and the two are interlocked with each other. A fourth screw hole is opened on the second U-shaped limit block, and the second screw hole and the fourth screw hole are locked with connecting bolts to fix the fan outer frame as a whole to the machine. The height of the second U-shaped groove is greater than the height of the second U-shaped limit block, and there is a gap at the upper end of the second U-shaped groove.

[0035] like Figure 3 , Figure 4 As shown, both side outer walls of the first U-shaped limiting block and the second U-shaped limiting block are raised to form ear blocks, and the ear grooves and the ear blocks are corresponding to each other and embedded in each other.

[0036] like Figure 4 As shown, the buckling structure includes a buckling head, a stopper and a bottom block. The upper ring of the lower end outer wall of the upper frame is provided with four buckling heads protruding outward. The lower end of the buckling head passes over the lower bottom surface of the upper frame and extends vertically downward in the longitudinal direction. The extended part forms an L shape toward the notch on one side. The upper ring of the upper end outer wall of the lower frame is provided with four stoppers protruding outward. The four stoppers correspond to the notch one by one. A bottom block is provided below each stopper. The bottom block also protrudes from the outer wall of the lower frame. A gap is provided between the bottom block and the stopper, and the gap fits the lower end of the buckling head. Fix the lower frame, then rotate the upper frame counterclockwise relative to the lower frame, the buckling head disengages from the stopper and the bottom block, the buckling structure is unlocked, the upper frame and the lower frame are separated, fix the lower frame, then rotate the upper frame clockwise relative to the lower frame, the lower end of the buckling head enters between the bottom block and the stopper, the stopper fills the notch, the buckling structure is closed, and the upper frame and the lower frame are fixedly connected.

[0037] like Figure 1 As shown, L-shaped slots are provided at the lower end of the upper frame and the upper end of the lower frame, the two L-shaped slots are positioned opposite to each other, and one of the four frame pads is provided with an avoidance hole, through which the L-shaped slots can be observed.

[0038] 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 outer frame with integrated frame and gasket, characterized in that: The overall structure is a prismatic column, including an outer frame body, and a plurality of frame pads arranged around the outer periphery of the outer frame body for reducing vibration and noise; The interior of the outer frame body is hollowed out for placing the fan, and the outer wall of the outer frame body is provided with mutually staggered outer arc surfaces and planes, and the planes are located between adjacent frame pads; The frame pad has an outer side and an inner side that are arranged opposite to each other, the outer side is away from the outer frame body and protrudes to form the corners of the prism structure, and the inner side is an inner curved surface and fits the outer curved surface of the outer frame body; A mortise and tenon structure that fits in with each other to fix the relative positions of the frame pad and the outer frame body is provided between the frame pad and the outer frame body.

2. The fan outer frame with integrated frame and gasket as claimed in claim 1, characterized in that: The frame pad is made of flexible material.

3. The fan outer frame with integrated frame and gasket as claimed in claim 2, characterized in that: The flexible material is rubber.

4. The fan outer frame with integrated frame and gasket as claimed in claim 1, characterized in that: The outer frame body is a plastic part.

5. The fan outer frame with integrated frame and gasket as claimed in claim 1, characterized in that: The mortise and tenon structure includes at least two inner slots arranged along the longitudinal direction and a limit block arranged on the outer wall of the outer frame body. The inner slots and the limit blocks are correspondingly engaged with each other to limit the longitudinal movement of the frame pad relative to the outer frame body.

6. The fan outer frame with integrated frame and gasket as claimed in claim 5, characterized in that: The inner slot comprises a U-shaped slot with a semicircular bottom and a straight slot opening, and the limiting block comprises a U-shaped limiting block having the same shape as the U-shaped slot.

7. The fan outer frame with integrated frame and gasket as claimed in claim 5, characterized in that: The inner walls on both sides of the inner slot are expanded inward to form ear slots, and the outer walls on both sides of the limit block are raised to form ear blocks, and the ear slots and the ear blocks are in one-to-one correspondence and interlocked with each other.

8. The fan outer frame with integrated frame and gasket as claimed in claim 1, characterized in that: The outer frame body comprises an upper frame and a lower frame, wherein the upper frame and the lower frame are fixed to each other via a buckling structure, and the buckling structure can be opened and closed by relative rotation between the upper frame and the lower frame along the axial direction.

9. The fan outer frame with integrated frame and gasket as claimed in claim 8, characterized in that: The buckling structure protrudes from the outer wall of the outer frame body, and a groove is provided on the inner side for embedding the buckling structure.

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