Support for fan motor

Abstract

The utility model relates to a fan motor support comprising a main plate and side plates symmetrically arranged on the two sides of the main plate, the side plates are perpendicular to the main plate, a mounting cavity is defined by the two side plates and the main plate, the side wall face, facing the mounting cavity, of each side plate is an arc-shaped face concavely arranged outwards, and the upper end of each side plate extends out of the mounting cavity to be provided with a connecting plate; the connecting plate is parallel to the main plate, and the main plate, the side plates and the connecting plate are integrally formed by stamping iron plates. The side wall face, facing the installation cavity, of the side plate is the arc-shaped face concavely arranged outwards, the side plate is designed to be the arc-shaped face, the motor and the support are attached more tightly, and a gap between the motor and the support is small. According to the manufacturing mode of integral forming, material waste and processing steps are reduced, production cost can be controlled, consistency, stability and seamless connection among all parts of the support are effectively guaranteed, and meanwhile good structural strength is provided.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan accessory field, concretely relates to a fan motor support. BACKGROUND

[0002] As one of indispensable small household appliances in daily life, electric fans have been widely applied and developed in the market. Electric fans are mainly composed of a base, a support column, a head assembly and the like, wherein the head assembly is a core part of the electric fan, and usually includes a motor and a motor support and the like key components. Among them, the motor support not only bears the function of fixing the motor, but also is responsible for connecting and supporting other external components, so its design directly affects the performance and service life of the entire electric fan.

[0003] At present, the traditional motor support adopted by most electric fans on the market is usually composed of multiple cover bodies which are spliced with each other, and the overall fixation is realized through the connecting pieces at the bottom. In addition, in order to ensure that the motor and its related accessories can be firmly installed on the support, additional auxiliary components such as screw mounting plates need to be additionally provided, which makes the entire assembly process quite complicated. Due to the above-mentioned complex structure design, a large amount of time needs to be spent in the actual production process to accurately align and fix the various components, which greatly reduces the working efficiency of the production line. The use of a large number of components directly increases the raw material procurement cost; at the same time, the complex processing technology also increases the labor intensity, and thus pushes up the market selling price of the final product.

[0004] Secondly, due to the complexity of the structure design of the traditional motor support, the internal space layout of the motor support is not reasonable, and when the motor is embedded, it is often difficult to perfectly fit with it, and a large gap is easily generated between the two, thereby affecting the stability of the motor during operation. Especially under the condition of high-speed rotation of the fan driven by the motor, this unstable connection mode may cause the motor to loosen or even fall off relative to the support, which seriously affects the safety and reliability of the electric fan.

[0005] In view of the above analysis, how to design a motor support for a fan motor which can simplify the assembly process and ensure the stability of the motor installation has become an important issue to be solved by the technical personnel in the field. INVENTION CONTENTS

[0006] The utility model overcomes the technical deficiency, provides a fan motor support.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] A kind of bracket for fan motor, including main plate and the symmetrically arranged side plate of two sides of main plate, the side plate is vertically arranged relative to main plate, two the installation cavity is enclosed between the side plate and main plate, the side wall surface of the side plate towards installation cavity is outwardly concave arc surface, the connecting plate is arranged in the extension of the upper end of the side plate outside installation cavity, the connecting plate is parallelly arranged relative to main plate, the main plate, side plate and connecting plate are integrally stamped from iron sheet material.

[0009] Further, first mounting hole is opened in the connecting plate, and second mounting hole is symmetrically opened in the main plate.

[0010] Further, first accommodating cavity is formed by outwardly concave in the middle of the main plate, bearing is installed in the first accommodating cavity, the upper end of the bearing is covered with elastic gland, oil cover is covered on the elastic gland and is arranged to compress the elastic gland on the bearing, the bearing, elastic gland and oil cover are integrally stamped from metal sheet material.

[0011] Further, first through hole for accommodating bearing is opened in the middle of the upper end of the elastic gland, a plurality of elastic sheets are equidistantly arranged along the outer periphery of the first through hole in the elastic gland, the elastic sheet extends towards the first through hole and is upturned and compressed on the upper end of the bearing, and the adjacent elastic sheets form isolation grooves separating the adjacent elastic sheets.

[0012] Further, annular groove is formed by downwardly concave in the elastic gland, the elastic sheet includes parallel end parallel to the groove bottom wall surface of annular groove and upturned end extending from parallel end to first through hole and upturned, the included angle a is formed between the upturned end and parallel end, and the angle of the included angle a is 100°-150°.

[0013] Further, the oil cover includes annular connecting portion, first boss connected to the upper end of the annular connecting portion and second boss connected above the first boss, second through hole is opened in the middle of the second boss to expose the bearing to the second boss, and a plurality of clamping hooks for clamping the annular connecting portion are equidistantly arranged along the outer periphery of the first accommodating cavity on the inner side of the main plate.

[0014] Further, the diameter of the annular connecting portion is greater than the diameter of the first boss and the second boss, the inner circle diameter of the first boss is greater than the inner circle diameter of the second boss to form annular barrier portion, the outer circle diameter of the elastic gland is equal to the outer circle diameter of the annular barrier portion, and the elastic gland is compressed on the lower wall surface of the annular barrier portion.

[0015] Further, the bearing is oil-containing bearing, the middle of the bearing forms shaft hole for motor shaft to pass through, and the bearing further includes oil storage portion circumferentially arranged outside the shaft hole.

[0016] Further, the diameter of the bearing is 6mm-12mm.

[0017] Compared with the prior art, the utility model has the advantages of:

[0018] 1、The support structure of the case is simple and low in manufacturing cost, and two same supports of the case can be used to fix the motor, reducing parts and saving cost. The main plate and the side plate jointly constitute the basic frame of the support. The main plate provides the main support force, and the side plate enhances the rigidity and stability of the whole structure. The main plate and the side plate jointly form the mounting cavity for accommodating the motor, ensuring the close mounting of the fan motor. The side wall surface of the side plate towards the mounting cavity is outwardly concave arc surface. The arc surface design of the side plate makes the close fit between the motor and the support, and the gap between them is small. In actual application, two same supports of the case are needed, one in front and one in back, to jointly connect and fix to support the motor. Since the fan motor is generally cylindrical in structure, the arc inner surface of the side plate matches the shape of the motor. The space formed by the two supports in front and back jointly enclosing is adapted to the motor, ensuring that the left and right ends of the motor can be closely fitted on the inner side wall of the side plate, and the upper and lower ends of the motor are closely fitted on the main plate. The side plate of this structure design further improves the installation precision and running stability of the motor. The case reduces the number of unnecessary parts and adopts a more reasonable design, so that the motor can be completely embedded in the mounting cavity during installation, the fit between the motor and the support is closer, the stability of the connection between the motor and the support is effectively ensured, and the situation of loosening or falling off of the motor is prevented. The one-piece manufacturing method reduces material waste and processing steps, helps to control production cost, effectively ensures the consistency, stability and seamless connection between the parts of the support, and provides good structural strength.

[0019] 2、The support of the case is made of iron material and integrally stamped and formed by a main plate, a side plate and a connecting plate. In the prior art, an aluminum alloy material is generally used to make the motor support. The iron material has lower cost than the aluminum alloy material, which helps to reduce production cost, especially in large-scale batch production, saving a lot of cost. The iron material support is easy to process and only needs one-step stamping and forming, which is high in production efficiency and low in production time cost, suitable for large-scale batch production. The support made of aluminum alloy material in the prior art generally needs to be pressure cast first, then treated by tapping and then treated by sand blasting, which is complicated, low in efficiency and high in cost. Compared with the aluminum alloy material, the iron material has high tensile strength and hardness, which can provide sufficient support force to ensure the stability and durability of the support. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the overall component explosion diagram of the support of the case.

[0021] Figure 2 is the overall assembly view of the bracket of the present application.

[0022] Figure 3 is the structural schematic view of the internal perspective of the oil cover of the present application.

[0023] Figure 4 is the side view of the overall assembly view of the bracket of the present application.

[0024] Figure 5 is the sectional view of the A-A direction in the bracket of the present application. Figure 4 DETAILED DESCRIPTION

[0025] The features of the present application and other related features are further described in detail by the following examples, so as to facilitate the understanding of the same by the same industry technical personnel:

[0026] As Figures 1 to 5 ​As shown, the fan motor support disclosed in the case mainly includes a main plate 1 and a side plate 2 symmetrically arranged on both sides of the main plate 1. The main plate 1 is the basic part of the whole support, located at the center position of the support, and is connected perpendicularly with the two side plates 2 to form a stable overall frame. The side plate 2 is arranged perpendicularly relative to the main plate 1, and the installation cavity 100 is formed between the two side plates 2 and the main plate 1. The side wall surface of the side plate 2 towards the installation cavity 100 is outwardly concave arc surface. By reducing the complex structure, the side plate 2 adopts the design of arc surface, so that the fit between the motor and the support is more closely, and the gap between the two is smaller, so that the connection between the two is more stable, effectively ensuring the stability of the connection between the motor and the support, and not easy to shake and fall off. Compared with the complex adaptive structure in the traditional support, this design is more simple and effective, reduces unnecessary adjustment steps, and improves the assembly efficiency. In specific implementation, two same supports of the case are needed, one in front and one in back to jointly connect and fix to support the motor. Among them, because the fan motor is generally in cylindrical structure, the arc inner surface on the side plate 2 matches the shape of the motor, and the space matched with the motor is formed by the installation cavities 100 of the front and rear supports, which ensures that the left and right ends of the motor can be closely attached to the inner side wall of the side plate 2, and the upper and lower ends of the motor are closely attached to the main plate 1, greatly reducing the gap between the motor and the side plate 2 and the main plate 1 of the support after the motor is assembled, and further improving the installation accuracy and running stability of the motor. The connecting plate 3 is arranged outside the installation cavity 100 at the upper end of the side plate 2, and the connecting plate 3 is arranged parallel to the main plate 1. The connecting plate 3 extends outwardly from the installation cavity 100 and is arranged parallel to the main plate 1, that is, the connecting plates 3 on both sides extend outwardly from the installation cavity parallel to the main plate 1. The connecting plate 3 is used to connect the front support and the rear support together, and the front and rear supports are connected and fixed by the screw passing through the first mounting hole 31. Since the connecting plate 3 is arranged parallel to the main plate 1, it makes the support more evenly disperse the force from the motor and other components. This design helps to improve the overall stability of the support and reduce deformation or damage caused by uneven force. The parallel design of the connecting plate 3 and the main plate 1 makes the installation process more intuitive and simple. The installer can easily align the front and rear supports and connect and fix them by screws, reducing the complex alignment and adjustment steps. The main plate 1, the side plate 2 and the connecting plate 3 are integrally stamped from iron plate material.

[0027] Further, as Figure 1 、 Figure 2 , Figure 5As shown, the connecting plate 3 is provided with a first mounting hole 31, and the main plate 1 is provided with a second mounting hole 11 symmetrically. In specific implementation, the front and rear brackets can be connected and fixed together by screwing through the first mounting hole 31, so as to ensure the stability and positioning of the entire bracket in the entire fan structure. The main plate 1 is connected and fixed with the corresponding support part on the fan by screwing through the second mounting hole 11, so as to connect and fix the bracket on the support part.

[0028] Further, as shown in the drawings, Figures 1 to 5 As shown, the first accommodating cavity 12 is formed by outwardly recessing the middle part of the main plate 1, and the bearing 4 is installed in the first accommodating cavity 12. The bearing 4 is used for connecting the motor shaft, and the first accommodating cavity 12 provides a mounting position for the bearing 4, so as to ensure that the bearing 4 can be stably fixed on the main plate. The provision of the first accommodating cavity 12 provides accurate positioning, which helps to improve the installation accuracy of the bearing 4 and ensures that the bearing 4 is aligned with the motor shaft. The upper end of the bearing 4 is covered with the elastic gland 5, and the elastic gland 5 is used for fixing the bearing 4 in the first accommodating cavity 12 and providing a certain elastic pressure, so as to ensure the stability of the bearing. The elastic gland 5 ensures that the bearing 4 is firmly fixed in the accommodating cavity by applying elastic pressure, so as to prevent the bearing 4 from loosening. The elastic gland 5 has a certain elasticity and can absorb part of the vibration, further reducing the noise during the operation of the motor. The elastic gland 5 is covered with the oil cover 6, which tightly sets the elastic gland 5 on the bearing 4. The oil cover 6 is used for tightly setting the elastic gland 5 on the bearing 4, and at the same time protects the bearing from dust and impurities. The bearing 4, the elastic gland 5 and the oil cover 6 are integrally stamped from a metal plate, which simplifies the assembly steps, has high production efficiency and low cost, and has good structural stability.

[0029] As shown in the drawings, Figures 1 to 5 As shown, the first through hole 51 for accommodating the bearing 4 is formed in the middle part of the upper end of the elastic gland 5. The provision of the first through hole 51 ensures that the upper end of the bearing 4 can be clamped into the first through hole 51 and kept in the correct position, effectively ensuring the accurate installation of the bearing 4 and improving the smoothness and stability of the motor operation. A plurality of elastic pieces 52 are equidistantly arranged along the outer periphery of the first through hole 51 on the elastic gland 5, the elastic pieces 52 extend towards the first through hole 51 and are upwardly buckled and tightly set on the upper end of the bearing 4, the elastic pieces 33 are tightly set on the upper end of the bearing 4, so as to ensure that the bearing 4 is always in a stressed state, improve the uniformity of the stress of the bearing 4, and further enhance the stability of the motor operation. Adjacent elastic pieces 52 are separated by a separation groove 53. The separation groove 53 separates adjacent elastic pieces 52 to prevent the elastic pieces 52 from interfering with each other when stressed. The provision of the separation groove 53 improves the independence and elasticity of the elastic pieces 52, so as to ensure that each elastic piece 52 can uniformly apply a pre-tightening force and improve the stability of the bearing 4.

[0030] As shown in the drawings, Figure 1 , Figure 4 , Figure 5As shown, the elastic cover 5 is concave downward and forms an annular groove 54, the annular groove 54 improves the installation accuracy of the elastic sheet 52, ensures that each elastic sheet 52 can uniformly apply pre-tightening force, and further improves the stability of the bearing 4. At the same time, the annular groove 54 formed by the downward concave can press the bearing 4 downward to ensure the stability of the bearing 4. The elastic sheet 52 includes a parallel end 521 parallel to the groove bottom wall surface of the annular groove 54 and a raised end 522 extending into the first through hole 51 and upward, and an included angle a is formed between the raised end 522 and the parallel end 521, and the angle of the included angle a is 100°-150°. The parallel end 521 ensures the stability of the base of the elastic sheet 52, the raised end 522 extends into the first through hole 51 and is upward, and is pressed against the upper end of the bearing 4. The included angle a formed between the raised end 522 and the parallel end 521 determines the inclination degree of the elastic sheet 52, which further affects the pre-tightening force and the contact area of the elastic sheet 52 on the bearing 4. By setting the angle of the included angle a to 100°-150°, the elastic sheet 52 can provide sufficient pre-tightening force when stressed, while avoiding excessive compression that can damage the bearing 4, improving the smoothness and life of the motor. In specific implementation, considering factors such as the working environment, load condition and service life of the motor, the included angle a is preferably set to an angle range of 120° in the utility model to provide moderate pre-tightening force, which can ensure the stability of the bearing 4 without causing excessive compression, and is suitable for most conventional working conditions. Providing moderate contact area ensures uniform distribution of pre-tightening force and does not increase friction loss due to excessive contact area, improving the operating efficiency of the motor. The included angle a of 120° is suitable for various working environments and load conditions, and has high universality and reliability. In actual application, users can fine-tune the included angle a according to the specific motor type and working environment to achieve the best performance and service life. For example, low-load, low-speed motors can select an included angle a of 100°-110° to reduce wear and prolong service life. High-load, high-speed motors can select an included angle a of 140°-150° to ensure stability under high load. Through reasonable design of the included angle a, the performance and reliability of the electric fan motor end cover structure can be significantly improved to meet the needs of different application scenarios.

[0031] As Figures 1 to 5As shown, the oil cap 6 further includes an annular connecting portion 61, a first protrusion 62 connected to the upper end of the annular connecting portion 61, and a second protrusion 63 connected to the upper part of the first protrusion 62. That is, the oil cap 6 is configured as a three-layer stepped structure. The annular connecting portion 61 is used to fix the oil cap 6 to the motherboard 1 by cooperating with the hooks 13 on the motherboard. The first protrusion 62 is used to accommodate the elastic cover 5, and the second protrusion 63 is used to accommodate the spring piece 52 at the upper end of the elastic cover 5 and the upper part of the bearing 5. A second through hole 631 is provided in the middle of the second protrusion 63, exposing the bearing 4, to facilitate the connection between the external motor shaft and the bearing 4. Several hooks 13 for securing the annular connecting portion 61 are equidistantly arranged along the outer circumference of the first receiving cavity 12 on the inner side of the motherboard 1. The hooks 13 are used to fix the annular connecting portion 61 of the oil cap 6, ensuring that the oil cap 6 is firmly fixed to the motherboard 1. This connection method is simple and convenient to install.

[0032] Continue as Figures 1 to 5 As shown, further, to make the connection between bearing 4, elastic cap 5, and oil cap 6 more compact and save installation space, the following structure is designed: The diameter of the annular connecting part 61 is larger than the diameter of the first boss 62 and the second boss 63. The inner ring diameter of the first boss 62 is larger than the inner ring diameter of the second boss 63, thus forming an annular blocking part 64. The outer ring diameter of the elastic cap 5 is equal to the outer ring diameter of the annular blocking part 64. The elastic cap 5 is pressed against the lower wall surface of the annular blocking part 64. That is to say, the outer ring portion of the elastic cap 5 is pressed between the first boss 62 and the second boss 63, and its upper wall surface is pressed tightly against the lower wall surface of the annular blocking part 64.

[0033] like Figure 1 , Figure 4 , Figure 5 Figures 1 to 5 Figures 1 to 5 Figure 1 Figure 4 Figure 5 As shown, bearing 4 is an oil-impregnated bearing 4, with a shaft hole 21 formed in the middle of bearing 4 through which the motor shaft passes. Bearing 4 also includes an oil reservoir 22 circumferentially disposed outside the shaft hole 21. The oil reservoir 22 is used to store lubricating oil, ensuring that bearing 4 maintains good lubrication during long-term operation. By setting the oil reservoir, the wear resistance and service life of bearing 4 are improved, friction and wear during motor operation are reduced, and noise is lowered.

[0034] Furthermore, the diameter of bearing 4 is 6mm-12mm, and users can select different sizes of oil-impregnated bearings to match different motors according to their needs. In specific implementations, the diameter of the oil-impregnated bearing in this utility model is preferably 6mm, 8mm, 10mm, and 12mm, but it is not limited to the four sizes shown in this embodiment within the range of 6mm-12mm. When users select oil-impregnated bearings 4 of different diameters, the dimensions of the elastic cover 5 need to be adapted to fit the oil-impregnated bearings 4 of different diameters.

[0035] As described above, the present application protects a bracket for fan motor, all the same or similar technical solutions should be shown to fall within the scope of the present application.

Claims

1. A bracket for a fan motor, comprising a main plate (1) and side plates (2) symmetrically arranged on both sides of the main plate (1), characterized in that: The side plate (2) is vertically arranged relative to the main plate (1), two side plates (2) and the main plate (1) are enclosed to form a mounting cavity (100), the side wall of the side plate (2) towards the mounting cavity (100) is outwardly concave arc surface, the upper end of the side plate (2) extends outwardly to the mounting cavity (100) and is provided with a connecting plate (3), the connecting plate (3) is parallel to the main plate (1), the main plate (1), the side plate (2) and the connecting plate (3) are integrally stamped from iron plate.

2. The bracket for a fan motor of claim 1, wherein: The connecting plate (3) is provided with a first mounting hole (31), and the main plate (1) is provided with a second mounting hole (11) symmetrically.

3. The bracket for a fan motor of claim 1, wherein: The main plate (1) is outwardly concave to form a first containing cavity (12) in the middle, the bearing (4) is installed in the first containing cavity (12), the upper end of the bearing (4) is covered with an elastic gland (5), the elastic gland (5) is covered with an oil cover (6) which is tightly arranged on the bearing (4), and the bearing (4), the elastic gland (5) and the oil cover (6) are integrally stamped from metal plate.

4. The support for fan motors as defined in claim 3, wherein: The upper end of the elastic gland (5) is provided with a first through hole (51) for containing the bearing (4), a plurality of elastic sheets (52) are equidistantly arranged along the outer periphery of the first through hole (51), the elastic sheets (52) extend towards the first through hole (51) and are upwardly bent and tightly arranged on the upper end of the bearing (4), and the adjacent elastic sheets (52) are separated by a separation groove (53).

5. The support for a fan motor of claim 4 wherein: The elastic gland (5) is downwardly concave to form an annular groove (54), the elastic sheet (52) comprises a parallel end (521) parallel to the groove bottom wall of the annular groove (54) and a bent end (522) extending into the first through hole (51) from the parallel end (521) and upwardly bent, an included angle a is formed between the bent end (522) and the parallel end (521), and the angle of the included angle a is 100-150 degrees.

6. The support for a fan motor of claim 3 wherein: The oil cover (6) comprises an annular connecting portion (61), a first boss (62) connected to the upper end of the annular connecting portion (61) and a second boss (63) connected above the first boss (62), a second through hole (631) is formed in the middle of the second boss (63) to expose the bearing (4) to the second boss (63), and a plurality of clamping hooks (13) for clamping the annular connecting portion (61) are equidistantly arranged along the outer periphery of the first containing cavity (12) on the inner side of the main plate (1).

7. A support for a fan motor as claimed in claim 6, wherein: The diameter of the annular connecting portion (61) is greater than the diameter of the first boss (62) and the second boss (63), the inner circle diameter of the first boss (62) is greater than the inner circle diameter of the second boss (63) to form an annular blocking portion (64), the outer circle diameter of the elastic gland (5) is equal to the outer circle diameter of the annular blocking portion (64), and the elastic gland (5) is tightly arranged on the lower wall of the annular blocking portion (64).

8. The support for a fan motor of claim 3 wherein: The bearing (4) is an oil-containing bearing, a shaft hole (41) for the motor shaft to pass through is formed in the middle of the bearing (4), and the bearing (4) further comprises an oil storage part (42) arranged circumferentially outside the shaft hole (41).

9. The support for a fan motor of claim 8 wherein: The diameter of the bearing (4) is 6-12 mm.

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