Fully-sealed dustproof fan for heat dissipation of radio transmitter

Abstract

The utility model relates to the technical field of dustproof fans, and discloses a fully-sealed dustproof fan for heat dissipation of a radio transmitter, which comprises a sealing shell, heat-conducting gaskets are fixedly connected to two ends of the inner wall of the sealing shell, a cooling fin is fixedly connected to one side of each heat-conducting gasket, a motor assembly is fixedly connected to one end of the inside of the sealing shell, and a fan assembly is fixedly connected to the other end of the inside of the sealing shell. A brake disc is fixedly connected to one end of the surface of the motor assembly, frosted pads are fixedly connected to the two sides of the brake disc, and a speed limiter is fixedly connected to one end of one side of the sealing shell. According to the fully-sealed dustproof fan for heat dissipation of the radio transmitter, through the arrangement of the heat conducting gasket and the cooling fins, when the fan is used, heat in the fan can be dissipated out, so that the situation that aging of a motor winding insulating material is accelerated and the insulating property of the motor winding insulating material is reduced due to continuous temperature rise caused by heat accumulation in the fan is avoided; the service life of the motor is prolonged, the rotating speed stability is improved, and the fault probability is reduced.

Description

Technical Field

[0001] This utility model relates to the field of dustproof fan technology, and in particular to a fully sealed dustproof fan for heat dissipation of a radio transmitter. Background Technology

[0002] As the "heart" of a radio transmission system, the transmitter generates a significant amount of heat during operation due to its internal electrical components. Temperature has a substantial impact on the performance of these components; studies have shown that the reliability of power transistors decreases by 60% for every 10-degree Celsius increase in temperature. For high-power radio transmitters, the impact of temperature on performance is even more pronounced. The purpose of a broadcast transmitter cooling system is to achieve thermal reliability, ensuring that the system operates reliably and efficiently according to predetermined parameters.

[0003] A fully sealed dustproof fan for cooling a radio transmitter, disclosed in publication number CN218862900U, includes a housing, main shaft, rotor, and stator. The housing is cylindrical with open ends. The front and rear ends of the housing are respectively equipped with a front cover and a rear cover. A front dustproof sealing device for sealing the front bearing chamber is located on the rear side of the front cover, and a rear dustproof sealing device for sealing the rear bearing chamber is located on the front side of the rear cover. This invention has a simple structure and adds dustproof sealing devices to existing fans, effectively preventing dust from entering the bearing interior, avoiding grease contamination, providing double dust protection for the motor, improving fan utilization, extending service life, and ensuring reliable operation of the transmitter's cooling system.

[0004] However, the fully sealed dustproof fan used for cooling the radio transmitter has the following disadvantages:

[0005] (1) It is difficult to dissipate the heat inside the fan. If the heat inside the fan cannot be effectively dissipated, the heat will accumulate and the temperature will continue to rise. High temperature will accelerate the aging of the insulation material of the motor winding, reduce its insulation performance, and easily lead to faults such as short circuit in the winding, shorten the service life of the motor, affect the speed stability, and increase the probability of fault occurrence.

[0006] (2) It is difficult to limit the speed of the motor. If there is no speed braking function, the mechanical parts inside the fan may continue to run at high speed due to inertia when the fan needs to be stopped in an emergency. This will cause excessive wear, deformation or even damage to the mechanical parts. This damage will not only affect the service life of the fan itself, but may also cause fan debris to fly out, posing a safety threat to surrounding equipment and personnel. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] The technical problem solved by the utility model is to provide a fully sealed dustproof fan for heat dissipation of a radio transmitter that is highly practical, easy to operate, and has a simple structure. This solves the problems mentioned in the background art of difficulty in dissipating heat from inside the fan and difficulty in limiting and braking the speed of the motor.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, this utility model is implemented through the following technical solution: a fully sealed dustproof fan for heat dissipation of a radio transmitter, comprising a sealed shell, thermally conductive pads fixedly connected to both ends of the inner wall of the sealed shell, a heat sink fixedly connected to one side of the thermally conductive pads, a motor assembly fixedly connected to one end inside the sealed shell, a brake disc fixedly connected to one end of the surface of the motor assembly, frosted pads fixedly connected to both sides of the brake disc, and a speed limiter fixedly connected to one end of one side of the sealed shell.

[0011] Optionally, a support frame is fixedly connected to both sides of the heat sink, and a dustproof net is fixedly connected to both sides of the inner wall of the support frame, thus achieving the function of support.

[0012] Optionally, the surface of the support frame is provided with a water channel, and the two sides of the inside of the speed limiter are fixedly connected with expansion joints to achieve the function of water diversion.

[0013] Optionally, the motor assembly includes a servo motor fixedly connected to the inner wall of the sealed housing, and the output end of the servo motor is splinedly connected to a transmission rod to achieve the driving function.

[0014] Optionally, a brake plate is fixedly connected to one end of the telescopic device, and a rotating shaft is meshed with the other end of the transmission rod, thereby achieving the function of rotation.

[0015] Optionally, a fan blade is fixedly connected to the surface of the rotating shaft, an electrostatic adsorption mesh is inserted into one end of the rotating shaft surface, an oil lubrication channel is opened inside one end of the transmission rod, a limit plate is fixedly connected to the other end of the rotating shaft, and a sealing plug is inserted into the middle of one side of the limit plate to achieve the function of limiting.

[0016] (III) Beneficial Effects

[0017] This utility model provides a fully sealed dustproof fan for heat dissipation of a radio transmitter, which has the following features:

[0018] Beneficial effects:

[0019] 1. This fully sealed dustproof fan for cooling the radio transmitter, through the setting of thermal pads and heat sinks, can dissipate the heat inside the fan during use, thereby preventing heat from accumulating inside and causing the temperature to rise continuously, which would accelerate the aging of the motor winding insulation material, reduce its insulation performance, extend the service life of the motor, improve speed stability, and reduce the probability of failure.

[0020] 2. This fully sealed dustproof fan for cooling the radio transmitter, through the setting of brake disc, abrasive pad and speed limiter, can limit the speed of the motor during use, to avoid excessive wear, deformation or even damage to the internal mechanical parts of the fan when the fan needs to be stopped in an emergency, thus extending the service life of the fan itself and avoiding the problem of debris flying out due to the fan continuing to run at high speed due to inertia, thereby reducing the safety threat to surrounding equipment and personnel. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the fan of this utility model;

[0022] Figure 2 This is a front sectional view of the internal structure of the fan of this utility model;

[0023] Figure 3 This is a side sectional view of the internal structure of the fan of this utility model;

[0024] Figure 4 This is a cross-sectional view of the fan lubrication pipe of this utility model.

[0025] In the diagram: 1. Sealing shell; 2. Thermal pad; 3. Heat sink; 4. Motor assembly; 401. Servo motor; 402. Transmission rod; 5. Brake disc; 6. Frosted pad; 7. Speed ​​limiter; 8. Support frame; 9. Dustproof net; 10. Water channel; 11. Expansion joint; 12. Brake plate; 13. Shaft; 14. Fan blade; 15. Electrostatic adsorption net; 16. Lubrication channel; 17. Limiting plate; 18. Sealing plug. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] Please see Figures 1 to 4This utility model provides a technical solution: a fully sealed dustproof fan for heat dissipation of a radio transmitter, including a sealed shell 1. Thermally conductive pads 2 are fixedly connected to both ends of the inner wall of the sealed shell 1, and a heat sink 3 is fixedly connected to one side of the thermally conductive pads 2. Through the arrangement of the thermally conductive pads 2 and the heat sink 3, heat inside the fan can be dissipated during use, thereby preventing heat accumulation inside and continuous temperature rise, which could accelerate the aging of the motor winding insulation material, reduce its insulation performance, extend the motor's service life, improve speed stability, and reduce the probability of failure. The sealed shell 1 contains a... A motor assembly 4 is fixedly connected to one end of the motor assembly 4. A brake disc 5 is fixedly connected to one end of the surface of the motor assembly 4. A frosted pad 6 is fixedly connected to both sides of the brake disc 5. A speed limiter 7 is fixedly connected to one end of one side of the sealing shell 1. With the brake disc 5, the frosted pad 6 and the speed limiter 7, the motor can be braked at a limited speed during use. This prevents excessive wear, deformation or even damage to the internal mechanical parts of the fan when the fan needs to be stopped urgently. It also extends the service life of the fan itself and prevents the problem of debris flying out due to the fan continuing to run at high speed due to inertia. This reduces the safety threat to surrounding equipment and personnel.

[0028] Support frames 8 are fixedly connected to both sides of the heat sink 3, and dustproof nets 9 are fixedly connected to both sides of the inner wall of the support frame 8. The dustproof nets 9 are used to prevent dust during use.

[0029] The surface of the support frame 8 is provided with a water channel 10, and the two sides of the inside of the speed limiter 7 are fixedly connected with telescopic devices 11. Through the setting of the telescopic devices 11, the effect of telescopic brake plate 12 is achieved during use.

[0030] The motor assembly 4 includes a servo motor 401 fixedly connected to the inner wall of the sealed housing 1. The output end of the servo motor 401 is splinedly connected to a transmission rod 402. Through the setting of the transmission rod 402, it drives the rotating shaft 13 to rotate during use.

[0031] One end of the telescopic device 11 is fixedly connected to a brake plate 12, and the other end of the transmission rod 402 is meshed with a rotating shaft 13. Through the setting of the brake plate 12, a frosted braking effect is achieved during use.

[0032] A fan blade 14 is fixedly connected to the surface of the rotating shaft 13. An electrostatic adsorption mesh 15 is inserted into one end of the surface of the rotating shaft 13. An oil lubrication channel 16 is opened inside one end of the transmission rod 402. A limit plate 17 is fixedly connected to the other end of the rotating shaft 13. A sealing plug 18 is inserted into the middle of one side of the limit plate 17. Through the setting of the oil lubrication channel 16, the lubricating oil is delivered during use.

[0033] In this invention, the working steps of the device are as follows:

[0034] The first step is to conduct heat inside the motor through the thermal pad 2, and then dissipate the heat through the heat sink 3. This prevents heat from accumulating inside and causing the temperature to rise continuously, which would accelerate the aging of the motor winding insulation material, reduce its insulation performance, extend the service life of the motor, improve speed stability, and reduce the probability of failure.

[0035] The second step: Then, through the telescopic device 11 fixed inside the speed limiter 7, the abrasive pads 6 on both sides of the abrasive brake disc 5 of the brake plate 12 extend out to achieve the speed limiting braking effect, so as to avoid excessive wear, deformation or even damage to the internal mechanical parts of the wind turbine when the wind turbine needs to be stopped urgently, and to avoid the problem of the wind turbine continuing to run at high speed due to inertia causing debris to fly out, thereby reducing the safety threat to surrounding equipment and personnel.

[0036] The third step: Support brackets 8 are fixedly connected to both sides of the heat sink 3, and dustproof nets 9 are fixedly connected to both sides of the inner wall of the support brackets 8. The purpose of this design is to achieve the dustproof effect during use through the setting of dustproof nets 9.

[0037] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0038] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fully sealed dustproof fan for heat dissipation of a radio transmitter, comprising a sealed housing (1), characterized in that: Thermal pads (2) are fixedly connected to both ends of the inner wall of the sealing shell (1). A heat sink (3) is fixedly connected to one side of the thermal pads (2). A motor assembly (4) is fixedly connected to one end inside the sealing shell (1). A brake disc (5) is fixedly connected to one end of the surface of the motor assembly (4). A frosted pad (6) is fixedly connected to both sides of the brake disc (5). A speed limiter (7) is fixedly connected to one end of one side of the sealing shell (1).

2. The fully sealed dustproof fan for heat dissipation of a radio transmitter according to claim 1, characterized in that: The heat sink (3) is fixedly connected to two sides of a support frame (8), and the inner walls of the support frame (8) are fixedly connected to two sides of a dustproof net (9).

3. The fully sealed dustproof fan for heat dissipation of a radio transmitter according to claim 2, characterized in that: The surface of the support frame (8) is provided with a water channel (10), and the two sides of the inside of the speed limiter (7) are fixedly connected with expansion joints (11).

4. A fully sealed dustproof fan for heat dissipation of a radio transmitter according to claim 3, characterized in that: The motor assembly (4) includes a servo motor (401) fixedly connected to the inner wall of the sealed shell (1), and the output end of the servo motor (401) is splinedly connected to a transmission rod (402).

5. A fully sealed dustproof fan for heat dissipation of a radio transmitter according to claim 4, characterized in that: One end of the telescopic device (11) is fixedly connected to a brake plate (12), and the other end of the transmission rod (402) is meshed with a rotating shaft (13).

6. A fully sealed dustproof fan for heat dissipation of a radio transmitter according to claim 5, characterized in that: The surface of the rotating shaft (13) is fixedly connected with a fan blade (14), one end of the rotating shaft (13) is inserted with an electrostatic adsorption mesh (15), one end of the transmission rod (402) is provided with an oil lubrication channel (16), the other end of the rotating shaft (13) is fixedly connected with a limiting plate (17), and a sealing plug (18) is inserted in the middle of one side of the limiting plate (17).

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