Corrosion-resistant heat dissipation fan

Abstract

The utility model discloses a kind of corrosion-resistant heat dissipation fan, including fan blade, motor, the fixed frame is fixedly installed in the top of the shell of motor, the bottom plate of the output shaft of motor stretches out fixed frame, the output shaft of motor is fixedly connected with shaft sleeve, the bottom of fan blade is locked and fixedly installed on shaft sleeve;The outer circle between the top surface of shell and the outer circle of bottom surface of bottom plate is fixedly provided with stainless steel washer, washer and upper heatproof gasket are arranged between the upper end surface of stainless steel washer and the lower end surface of bottom plate, lower heatproof gasket is arranged between the lower end surface of stainless steel washer and the upper end surface of shell;Aluminum washer, heat insulation washer are sleeved from bottom to top on the output shaft of motor, the lower end surface of heat insulation washer abuts the lower end surface of shaft sleeve, and lower through hole that passes through is arranged on the aluminum washer upper and lower;Cooling gap is left between shaft sleeve and bottom plate, between heat insulation washer and bottom plate.The utility model can prevent corrosion gas and hot air from blowing to motor.

Description

Technical Field

[0001] This utility model relates to the field of fans, and in particular to a corrosion-resistant heat dissipation fan. Background Technology

[0002] Some fans are used in complex working environments, such as environments containing corrosive heated gases. When the fan blades are running, the corrosive gases will be blown towards the motor, causing damage to the motor. At the same time, hot air will be blown towards the motor flange, causing the motor to overheat. Ultimately, the equipment cannot be guaranteed to operate stably, and the service life of the fan will be shortened. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a corrosion-resistant cooling fan that can prevent corrosive gases and hot air from being blown onto the motor.

[0004] To achieve the above objectives, one technical solution adopted by this utility model is as follows: a corrosion-resistant heat dissipation fan, including a fan blade and a motor, wherein a fixing frame is fixedly installed on the top of the motor housing, the output shaft of the motor extends out of the base plate of the fixing frame, a bushing is fixedly connected to the output shaft of the motor, and the bottom of the fan blade is locked and fixedly installed on the bushing; a stainless steel washer is fixedly provided between the outer ring of the top surface of the housing and the outer ring of the bottom surface of the base plate, a washer and an upper heat-insulating gasket are provided between the upper end face of the stainless steel washer and the lower end face of the stainless steel washer and the upper end face of the housing are provided with a lower heat-insulating gasket; an aluminum washer ring and a heat-insulating washer are fitted on the output shaft of the motor from bottom to top, the upper end face of the heat-insulating washer abuts against the lower end face of the bushing, and a through hole is provided on the aluminum washer ring; heat dissipation gaps are left between the bushing and the base plate, and between the heat-insulating washer and the base plate.

[0005] The beneficial effects of this corrosion-resistant cooling fan are as follows: the stainless steel gasket prevents hot air from blowing onto the motor, reducing the problem of motor overheating; the aluminum gasket absorbs heat, and the through holes on the top and bottom of the aluminum gasket generate air pressure by rotation, blocking corrosive gases and accelerating heat dissipation; the heat insulation gasket improves the motor's corrosion resistance; and the combination of gaskets, upper heat-insulating pads, and lower heat-insulating pads improves heat dissipation performance.

[0006] Preferably, the upper heat-resistant gasket, the washer, and the lower heat-resistant gasket form a gasket group, and multiple gasket groups are provided, which are locked and fixed on the same circumference of the stainless steel washer.

[0007] Preferably, the aluminum gasket has a greater thickness in the middle than at the edge, and the transition from the middle to the edge is achieved through a bevel. This improves heat dissipation performance.

[0008] Preferably, the top of the fan blade is a transitional constriction section, and the bottom inner diameter of the transitional constriction section is larger than the top inner diameter. This is used to optimize airflow pattern and reduce energy loss to improve aerodynamic performance.

[0009] Preferably, the top plate of the fixing frame has an upper through hole in the middle, and an air guide ring is provided on the lower end face of the upper through hole. The inner diameter of the top of the air guide ring is larger than the inner diameter of the bottom. The top and bottom of the air guide ring are guided by an arc-shaped transition surface, and the bottom of the air guide ring is inserted into the top of the fan blade. The air guide ring is used to improve airflow organization, enhance ventilation efficiency, and reduce energy consumption.

[0010] Preferably, the output shaft is provided with a key at its end, and the inner wall of the bushing is provided with a keyway. The output shaft and the bushing are connected by the key and the keyway, which can smoothly transmit torque.

[0011] Preferably, the outer circumference of the bushing is provided with a flange, and the flange has a mounting hole for mounting the bottom of the fan blade. The bottom of the fan blade is locked into the mounting hole by bolts. Attached Figure Description

[0012] Figure 1 This is a perspective view of the first angle of this embodiment;

[0013] Figure 2 This is an exploded view from the first angle of this embodiment;

[0014] Figure 3 This is a perspective view from the second angle of this embodiment;

[0015] Figure 4 This is an exploded view from the second angle of this embodiment;

[0016] Figure 5 This is a perspective view of the fan blades and mounting bracket after disassembly in this embodiment;

[0017] Figure 6 This is a perspective view of the bottom of the base plate in this embodiment;

[0018] Figure 7 This is a cross-sectional view of this embodiment;

[0019] Figure 8 for Figure 7 A magnified view of a section at point A in the middle;

[0020] Figure 9 This is a perspective view of the bushing in this embodiment;

[0021] Figure 10 This is a perspective view of the aluminum washer ring in this embodiment.

[0022] In the picture:

[0023] 1. Fan blade; 2. Motor; 3. Mounting bracket; 4. Base plate; 5. Bushing; 6. Stainless steel washer; 7. Lower heat-resistant gasket; 8. Aluminum washer ring; 9. Heat-insulating gasket; 10. Lower through hole; 11. Heat dissipation gap; 12. Washer; 13. Upper heat-resistant gasket; 14. Bevel; 15. Transition end; 16. Upper through hole; 17. Air guide ring; 18. Arc-shaped transition surface; 19. Output shaft; 20. Keyway; 21. Flange; 22. Mounting hole; 23. Top plate. Detailed Implementation

[0024] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0025] See Figures 1 to 10 As shown, this embodiment discloses a corrosion-resistant cooling fan, including a fan blade 1 and a motor 2. A mounting bracket 3 is fixedly installed on the top of the motor 2's housing. The output shaft 19 of the motor 2 extends out of the base plate 4 of the mounting bracket 3. A bushing 5 is fixedly connected to the output shaft 19 of the motor 2. The bottom of the fan blade 1 is fixedly mounted on the bushing 5. A stainless steel washer 6 is fixedly provided between the outer ring of the top surface of the housing and the outer ring of the bottom surface of the base plate 4 to prevent hot air from blowing towards the motor 2. A washer 12 and an upper heat-resistant gasket 13 are provided between the upper end surface of the stainless steel washer 6 and the lower end surface of the base plate 4. A lower heat-insulating gasket 7 is provided between the end face and the upper end face of the housing; an aluminum washer ring 8 and a heat-insulating washer 9 are fitted from bottom to top on the output shaft 19 of the motor 2. The upper end face of the heat-insulating washer 9 abuts against the lower end face of the bushing 5. The aluminum washer ring 8 is provided with a through hole 10 running vertically through the shaft. The aluminum washer ring 8 is used to absorb heat, and the through hole generates air pressure by rotation, blocking corrosive gases and accelerating heat dissipation. The heat-insulating washer 9 improves the corrosion resistance of the motor 2. Heat dissipation gaps 11 are left between the bushing 5 and the base plate 4, and between the heat-insulating washer 9 and the base plate 4. A certain amount of gaps are left so that air pressure drives the air to blow through the passage, improving heat dissipation.

[0026] The upper heat-resistant gasket 13, the washer 12, and the lower heat-resistant gasket 7 form a gasket group. Multiple gasket groups are provided and locked onto the same circumference of the stainless steel washer 6. In this embodiment, four gasket groups are provided, evenly spaced.

[0027] like Figure 10 As shown, the thickness of the aluminum washer ring 8 in the middle is greater than that at the edge, and the middle to the edge is transitioned by the bevel 14.

[0028] In this embodiment, the top of the fan blade 1 is a transitional constriction section 15, and the bottom inner diameter of the transitional constriction section 15 is larger than the top inner diameter. This is used to optimize airflow pattern and reduce energy loss to improve aerodynamic performance.

[0029] The top plate of the mounting bracket 3 has an upper through hole 16 in the middle, and an air guide ring 17 is provided on the lower end face of the upper through hole 16. The inner diameter of the top of the air guide ring 17 is larger than the inner diameter of the bottom. The top and bottom of the air guide ring 17 are guided by an arc-shaped transition surface 18, and the bottom of the air guide ring 17 is inserted into the top of the fan blade 1. The air guide ring 17 is used to improve airflow organization, enhance ventilation efficiency, and reduce energy consumption.

[0030] The output shaft 19 is provided with a key at its end, and the inner wall of the bushing 5 is provided with a keyway 20. The output shaft 19 and the bushing 5 are connected by the key and the keyway 20, which can smoothly transmit torque.

[0031] The bushing 5 has a flange 21 around its outer circumference, and the flange 21 has a mounting hole 22 for mounting the bottom of the fan blade 1. The bottom of the fan blade 1 is locked into the mounting hole 22 by bolts.

[0032] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A corrosion-resistant heat dissipation fan, comprising a fan blade (1) and a motor (2), characterized in that: A mounting bracket (3) is fixedly installed on the top of the housing of the motor (2). The output shaft (19) of the motor (2) extends out of the bottom plate (4) of the mounting bracket (3). A bushing (5) is fixedly connected to the output shaft (19) of the motor (2). The bottom of the fan blade (1) is fixedly mounted on the bushing (5). A stainless steel washer (6) is fixedly provided between the outer ring of the top surface of the housing and the outer ring of the bottom surface of the base plate (4). A washer and an upper heat-resistant pad (13) are provided between the upper end surface of the stainless steel washer (6) and the lower end surface of the base plate (4). A lower heat-resistant pad (7) is provided between the lower end surface of the stainless steel washer (6) and the upper end surface of the housing. An aluminum washer ring (8) and a heat insulation washer (9) are fitted on the output shaft (19) of the motor (2) from bottom to top. The upper end face of the heat insulation washer (9) abuts against the lower end face of the bushing (5). The aluminum washer ring (8) is provided with a through hole (10) that runs through the shaft from top to bottom. A heat dissipation gap (11) is provided between the bushing (5) and the base plate (4), and between the heat insulation gasket (9) and the base plate (4).

2. The corrosion-resistant heat dissipation fan according to claim 1, characterized in that: The upper heat-resistant gasket (13), the washer, and the lower heat-resistant gasket (7) form a gasket group. Multiple gasket groups are provided and locked and fixed on the same circumference of the stainless steel washer (6).

3. The corrosion-resistant heat dissipation fan according to claim 1, characterized in that: The aluminum gasket ring (8) has a greater thickness in the middle than at the edge, and the middle to the edge is transitioned by a bevel (14).

4. The corrosion-resistant heat dissipation fan according to claim 1, characterized in that: The top of the fan blade (1) is a transitional constriction section (15), and the bottom inner diameter of the transitional constriction section (15) is larger than the top inner diameter.

5. The corrosion-resistant heat dissipation fan according to claim 4, characterized in that: The top plate of the fixed frame (3) is provided with an upper through hole (16) in the middle. The lower end face of the upper through hole (16) is provided with a guide ring (17). The inner diameter of the top of the guide ring (17) is larger than the inner diameter of the bottom. The top to the bottom of the guide ring (17) is guided by an arc transition surface (18). The bottom of the guide ring (17) is inserted into the top of the fan blade (1).

6. The corrosion-resistant heat dissipation fan according to claim 1, characterized in that: The output shaft (19) is provided with a key at its end, and the inner wall of the bushing (5) is provided with a keyway (20). The output shaft (19) and the bushing (5) are connected by the key and the keyway (20).

7. The corrosion-resistant heat dissipation fan according to claim 1, characterized in that: The bushing (5) has a flange (21) around its outer circumference, and the flange (21) has a mounting hole (22) for mounting the bottom of the fan blade (1).

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