Balanced and stable fan

Abstract

The utility model relates to the technical field of cooling fans, in particular to a balance stable fan which comprises a driving box and a fan blade assembly, a rotating shaft is arranged on one side of the driving box, a spring is sleeved on the rotating shaft, one side of the spring is connected with a baffle ring, a clamping block is arranged in the fan blade assembly, one end of the rotating shaft is provided with a clamping groove, and the clamping groove is connected with the baffle ring. And a limiting assembly is arranged on the rotating shaft. The rotating shaft is sleeved with the spring, one side of the spring is connected with the baffle ring, contact face friction is increased through pre-pressure, vibration transmission is restrained, concentricity is assisted to be maintained, eccentricity caused by assembly errors is reduced, extra vibration caused by rotation can be reduced, the effects of damping and rotating shaft pressure adjusting are achieved, and stable operation of the fan is guaranteed; meanwhile, mounting of the rotating shaft and the fan blade assembly is achieved through the clamping blocks and the clamping grooves, an original locking screw fixing mode is changed into a clamping spring mode, manual errors can be reduced through standardized assembly, balance weight is reduced, and high-speed dynamic balance is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a heat dissipation fan technical field especially relates to a balance stable fan. BACKGROUND

[0002] The heat dissipation fan is the heat dissipation equipment commonly used in electronic equipment, is used to help reduce the heat produced when the equipment works, keeps the temperature in the safe range. They are usually applied in computer, server, power, household appliance etc. all kinds of electronic products. The function of the heat dissipation fan is through the air circulation, takes away the heat from the equipment interior, thereby keeps the stability of equipment and prolongs its service life.

[0003] At present, the traditional heat dissipation fan mostly adopts manual locking screw to fix the fan blade and the rotating shaft, but during manual assembly, locking screw fixing, the problem of inconsistent concentricity often occurs, leading to the contact of radial and longitudinal directions, thereby making the vibration be transduced and enlarged, affecting the stability and performance of the product. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the problem of inconsistent concentricity in prior art, leading to the contact of radial and longitudinal directions, thereby making the vibration be transduced and enlarged, affecting the stability and performance of the product, provides a balance stable fan, and through the pre-pressure increases the friction of the contact surface, inhibits the vibration transmission, assists maintaining the concentricity, reduces the eccentricity caused by assembly error, which can reduce the additional vibration caused by rotation.

[0005] In order to realize the above-mentioned purpose, the utility model provides a balance stable fan, including drive box and fan blade assembly, one side of drive box is provided with rotating shaft, spring is sleeved on rotating shaft, one side of spring is connected with baffle ring, the inside clamping block of fan blade assembly, the one end of rotating shaft is provided with clamping groove, the rotating shaft is provided with limiting assembly.

[0006] As a further description of the above technical solution: the fan blade assembly includes mounting plate and mounting cover, a plurality of fan blades are arranged circumferentially between the mounting plate and the mounting cover.

[0007] As a further description of the above technical solution: the limiting assembly includes limiting groove and limiting plate, the limiting groove is opened on the rotating shaft, and the limiting plate is detachably connected with the limiting groove.

[0008] As a further description of the above technical solution: the mounting plate is internally provided with a mounting hole, and the clamping block is located in the mounting hole.

[0009] As a further description of the above technical solution: the mounting hole is provided with a stable cylinder close to one side of the drive box, and the stable cylinder is attached to the baffle ring.

[0010] As a further description of the above technical solution: the reinforcing plates are connected between the stabilizing cylinder and the mounting plate.

[0011] As a further description of the above technical solution: the clamping blocks are fan-shaped stainless steel pieces, and the cooperation gap between the clamping blocks and the clamping grooves is ≤0.03mm.

[0012] As a further description of the above technical solution: the limiting grooves are T-shaped groove structures.

[0013] The above technical solution has the following advantages or beneficial effects:

[0014] The spring is sleeved on the rotating shaft, one side of the spring is connected with the blocking ring, the contact surface friction is increased through pre-pressure, vibration transmission is inhibited, concentricity is assisted to be maintained, eccentricity caused by assembly error is reduced, additional vibration caused by rotation is reduced, the effect of shock absorption and rotating shaft pressure adjustment is achieved, stable operation of the fan is ensured, the rotating shaft and the fan blade assembly are installed through the clamping block and the clamping groove, the original locking screw fixing mode is changed into the clamping spring type, the standardized assembly can reduce manual error, reduce the counterweight, and further improve high-speed dynamic balance. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 1 is a structural schematic view of a balanced and stable fan in an embodiment of the utility model;

[0016] Figure 2 FIG. 2 is a side view of the balanced and stable fan in the embodiment of the utility model;

[0017] Figure 3 FIG. 3 is a structural schematic view of a fan blade assembly in the embodiment of the utility model; Figure 1

[0018] FIG. 4 is a structural schematic view of a rotating shaft in the embodiment of the utility model; Figure 4 Figure 1 FIG. 5 is a structural schematic view of a limiting assembly in the embodiment of the utility model;

[0019] Figure 5 FIG. 6 is a structural schematic view of a balanced and stable fan in the prior art. Figure 1

[0020] Figure 6

[0021] FIG. 1 is a structural schematic view of a balanced and stable fan in an embodiment of the utility model;

[0022] 1, drive box; 2, fan blade assembly; 3, rotating shaft; 4, spring; 5, blocking ring; 6, clamping block; 7, clamping groove; 8, limiting assembly; 201, mounting plate; 202, mounting cover; 203, fan blade; 204, mounting hole; 205, stabilizing cylinder; 206, reinforcing plate; 81, limiting groove; 82, limiting plate. DETAILED DESCRIPTION ​​​

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] like Figures 1-6 As shown, the present invention provides a balanced and stable fan, including a drive housing 1 and a fan blade assembly 2. A rotating shaft 3 is provided on one side of the drive housing 1, a spring 4 is sleeved on the rotating shaft 3, a retaining ring 5 is connected to one side of the spring 4, a retaining block 6 is inside the fan blade assembly 2, a retaining groove 7 is opened at one end of the rotating shaft 3, and a limit component 8 is provided on the rotating shaft 3.

[0027] In the technical solution of this utility model, a spring 4 is sleeved on the rotating shaft 3, and one side of the spring 4 is connected to the retaining ring 5. The preload increases the friction of the contact surface, suppresses vibration transmission, helps maintain concentricity, and reduces eccentricity caused by assembly errors. It can reduce the additional vibration caused by rotation, play the role of shock absorption and adjusting the pressure of the rotating shaft, and ensure the stable operation of the fan. At the same time, the rotating shaft 3 and the fan blade assembly 2 are installed through the locking block 6 and the locking slot 7. The original screw fixing method is changed to the spring locking method. Standardized assembly can reduce human error, reduce counterweight, and further improve high-speed dynamic balance.

[0028] Specifically, through the reasonable cooperation of spring 4, locking block 6, locking slot 7 and limiting component 8, the new fan structure can effectively solve the problem of fan blade load vibration during assembly. By using the spring-type fixing method and combining the FOC characteristics to adjust the balance in real time, it not only reduces the vibration amplification problem caused by inconsistent concentricity in the traditional structure, but also reduces cost and manual assembly errors, making the product more stable and efficient during operation.

[0029] The drive box 1 contains a motor and drive circuit (which can integrate FOC algorithm) to drive the rotating shaft 3 as a power source. The surface of the box is equipped with heat dissipation fins (not shown) to reduce the operating temperature rise of the motor.

[0030] like Figure 1 and Figure 2 As shown, the fan blade assembly 2 includes a mounting plate 201 and a mounting cover 202. Multiple fan blades 203 are circumferentially arranged between the mounting plate 201 and the mounting cover 202. By circumferentially arranging multiple fan blades 203, air circulation is accelerated by rotating the fan blades 203 to help dissipate heat.

[0031] The mounting plate 201 has a mounting hole 204 inside, and the locking block 6 is located inside the mounting hole 204.

[0032] like Figure 4 and Figure 5 As shown, the limiting component 8 includes a limiting groove 81 and a limiting plate 82. The limiting groove 81 is formed on the rotating shaft 3, and the limiting plate 82 is detachably connected to the limiting groove 81. The limiting groove 81 is formed on the rotating shaft 3, so that the limiting plate 82 can limit the rotating shaft 3, ensuring that the relative position of the rotating shaft 3 and the fan blade assembly 2 is fixed and there will be no unnecessary displacement or loosening.

[0033] Among them, the card block 6 is a fan-shaped stainless steel sheet, the fitting gap between the card block 6 and the card slot 7 is ≤0.03mm, and the limiting groove 81 is a T-shaped groove structure.

[0034] like Figure 1 and Figure 3 As shown, a stabilizing cylinder 205 is provided on the side of the mounting hole 204 near the drive box 1. The stabilizing cylinder 205 is in contact with the retaining ring 5, and multiple reinforcing plates 206 are connected between the stabilizing cylinder 205 and the mounting plate 201. The stabilizing cylinder 205 is located near the mounting hole 204, and the stabilizing cylinder is in contact with the retaining ring 5, which can enhance the stability of the fan blade assembly 2 and prevent the fan from shifting or deforming during rotation. The multiple reinforcing plates 206 connected between the stabilizing cylinder 205 and the mounting plate 201 can enhance the stability of the fan structure and ensure that the fan does not deform when running at high speed.

[0035] Working principle: through spring 4 set on the shaft 3, spring 4 one side and the blocking ring 5 is connected, through the pre-pressure increases the friction of the contact surface, inhibit vibration transmission, auxiliary maintenance concentricity, reduce the eccentricity caused by assembly error it can reduce the additional vibration caused by rotation, play the role of shock absorption and adjustment of the shaft pressure, ensure the stable operation of the fan, at the same time through the block 6 and the card slot 7 realize to the shaft 3 and fan blade assembly 2 installation, the original locking screw fixed mode is changed to the card spring type, standardization assembly can reduce the artificial error, reduce the counterweight, further improve the high speed dynamic balance.

[0036] It should be noted that the relative terms such as first and second and the like are used herein solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0037] The above disclosed preferred embodiments of the utility model are only used to help explain the utility model. The preferred embodiments do not describe all the details, and the utility model is not limited to the specific implementation described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents.

Claims

1. A balanced stabilizing fan, characterized by, The utility model relates to a fan blade assembly and driving box, including driving box (1) and fan blade assembly (2), one side of driving box (1) is provided with pivot (3), spring (4) is sleeved on pivot (3), one side of spring (4) is connected with baffle ring (5), the inside of fan blade assembly (2) is clamping block (6), pivot (3) one end is provided with clamping groove (7), and pivot (3) is provided with limiting assembly (8).

2. A balanced stable fan as claimed in claim 1, wherein: The fan blade assembly (2) includes a mounting plate (201) and a mounting cover (202), and a plurality of fan blades (203) are circumferentially arranged between the mounting plate (201) and the mounting cover (202).

3. A balanced stable fan as claimed in claim 1, wherein: The limiting assembly (8) includes a limiting groove (81) and a limiting plate (82), the limiting groove (81) is formed on the pivot (3), and the limiting plate (82) is detachably connected with the limiting groove (81).

4. A balanced stable fan as claimed in claim 2, wherein: The mounting plate (201) is internally provided with a mounting hole (204), and the clamping block (6) is located in the mounting hole (204).

5. A balanced stabilised fan as claimed in claim 4, wherein: The mounting hole (204) is provided with a stable cylinder (205) near one side of the driving box (1), and the stable cylinder (205) is attached to the baffle ring (5).

6. A balanced stable fan as claimed in claim 5, wherein: A plurality of reinforcing plates (206) are connected between the stable cylinder (205) and the mounting plate (201).

7. A balanced stable fan as claimed in claim 1, wherein: The clamping block (6) is a fan-shaped stainless steel sheet, and the cooperation gap between the clamping block (6) and the clamping groove (7) is less than or equal to 0.03 mm.

8. A balanced stable fan as claimed in claim 3, wherein: The limiting groove (81) is a T-shaped groove structure.

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