Industrial fan rotating speed control device

Abstract

The utility model discloses an industrial fan rotating speed control device which comprises a substrate, a stator winding, a rotor, a motor shell and a heat dissipation plate, one side of the substrate is fixedly connected with a fixed cover, one side of the fixed cover is fixedly connected with a connecting frame, one side of the connecting frame is in threaded connection with a sealing cover, and a variable resistor is fixedly connected in the connecting frame. One side of the fixed cover is in threaded connection with a fixed ring, one side in the fixed ring is fixedly connected with a baffle plate, heat dissipation holes are uniformly formed in the baffle plate, the heat dissipation holes correspond to the heat dissipation plate, the baffle plate is rotationally connected with a connecting ring, one side of the connecting ring is sleeved with a rotor, and the other side of the connecting ring is provided with a heat dissipation fan; according to the industrial fan, the heat dissipation fan is installed on one side of the base plate and matched with the heat dissipation holes, so that airflow passes through the multiple layers of baffle rings, the effect of rapid heat dissipation can be achieved when the rotating speed of the industrial fan is controlled, and meanwhile the dustproof effect can be achieved through the arrangement of the first clamping plate and the second clamping plate.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial fan speed control, in particular to an industrial fan speed control device. Background Art

[0002] An industrial fan is a fan device designed for industrial environments. It has strong wind power and stable performance. It drives the propeller or blades to rotate through an electric motor to generate strong airflow. It is widely used in ventilation, cooling, dust removal and other tasks. The fan has different requirements for wind speed and air volume in different environments. At the same time, it is also necessary to save electricity resources for energy saving and environmental protection.

[0003] According to the Chinese patent publication number CN220139876U, "A control device for adjusting the speed of a fan", it is mainly described that a protective mechanism is provided to prevent the control device from being damaged due to impact by external force, so that the normal operation of the control device is not easily affected by the impact, which is beneficial to extending the service life of the control device; a damper is provided to absorb the impact force, so that the impact force is not easily transmitted directly to the control device, which prevents the control device from being damaged due to impact. When the fan speed is frequently controlled, it will cause the motor and the motor box to overheat, which directly affects the use of the fan motor.

[0004] Therefore, an industrial fan speed control device is proposed to solve the problem that when the fan speed is frequently controlled, the motor and the motor box may overheat, thereby directly affecting the use of the fan motor. Utility Model Content

[0005] The technical problem to be solved by the utility model is that when the fan speed is frequently controlled, the motor and the motor box will be overheated, which directly affects the use of the fan motor. Therefore, an industrial fan speed control device is proposed.

[0006] The technical solution adopted by the utility model to solve the technical problem is: an industrial fan speed control device, comprising a substrate, a stator winding, a rotor, a motor housing and a heat sink, wherein one side of the substrate is fixedly connected with a fixed cover, one side of the fixed cover is fixedly connected with a connection frame and one side of the connection frame is threadedly connected with a cover, a variable resistor is fixedly connected in the connection frame, the variable resistor is connected to the stator winding through a wire, one side of the fixed cover is threadedly connected with a fixed ring, one side of the fixed ring is fixedly connected with a baffle, heat dissipation holes are evenly opened on the baffle, the heat dissipation holes correspond to the heat sink, a connection ring is rotatably connected on the baffle, one side of the connection ring is sleeved with a rotor, and a heat dissipation fan is arranged on the other side of the connection ring, the rotating shaft of the heat dissipation fan is plugged with the connection ring, a first card is evenly fixedly connected to a side of the fixed ring away from the baffle, a rotating rod is fixedly connected at the center of the first card, a second card is sleeved on the rotating rod, conical depressions are evenly penetrated on the second card, and a dustproof net is fixedly connected in the conical depression.

[0007] As a preferred technical solution of the utility model, a handle is fixedly connected to the second card plate, and the handle is located at the upper and lower sides of the second card plate, and manual adjustment is convenient by providing the handle.

[0008] As a preferred technical solution of the utility model, a fixing sleeve is in contact with the second clamping plate, and the fixing sleeve is threadedly connected to the rotating rod. By providing the fixing sleeve and the rotating rod, the second clamping plate can be limited.

[0009] As a preferred technical solution of the utility model, a guide block is fixedly connected to one side of the fixing ring, and the guide block is a truncated cone structure. By providing the guide block, the airflow generated by the cooling fan can be guided to facilitate heat dissipation.

[0010] As a preferred technical solution of the utility model, a baffle ring is provided on the side of the fixed ring away from the guide block, and the baffle ring is evenly fixedly connected in the fixed cover. By providing the baffle ring, the airflow generated by the cooling fan can be guided, thereby facilitating heat dissipation.

[0011] The utility model has the following advantages: by installing a cooling fan on one side of the base plate and cooperating with the cooling holes, the airflow passes through the multi-layer baffle rings, thereby achieving the effect of rapid heat dissipation when the industrial fan controls the speed, and at the same time, a dust-proof effect can be provided by setting the first card plate and the second card plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a side cross-sectional structural schematic diagram of an industrial fan speed control device according to a preferred embodiment of the utility model;

[0013] Figure 2It is a three-dimensional structural schematic diagram of a fixed ring of an industrial fan speed control device according to a preferred embodiment of the utility model;

[0014] Figure 3 It is a schematic diagram of the enlarged structure of position A of an industrial fan speed control device in a preferred embodiment of the utility model.

[0015] Explanation of the accompanying drawings: 1. Base plate; 2. Stator winding; 3. Rotor; 4. Motor housing; 5. Heat sink; 6. Fixed cover; 7. Connecting frame; 8. Cover; 9. Variable resistor; 10. Fixed ring; 11. Baffle; 12. Heat dissipation hole; 13. Connecting ring; 14. Cooling fan; 15. First clamping plate; 16. Rotating rod; 17. Second clamping plate; 18. Fixed sleeve; 19. Handle; 20. Guide block; 21. Baffle ring; 22. Conical depression; 23. Dust net. DETAILED DESCRIPTION

[0016] The utility model will be further described below in conjunction with the accompanying drawings.

[0017] Please refer to Figure 1-3 An industrial fan speed control device shown in the figure comprises a substrate 1, a stator winding 2, a rotor 3, a motor housing 4 and a heat sink 5. The above structures form a motor structure that can drive the fan to rotate. A fixed cover 6 is fixedly connected to one side of the substrate 1, a connection frame 7 is fixedly connected to one side of the fixed cover 6, and a cover 8 is threadedly connected to one side of the connection frame 7. A variable resistor 9 is fixedly connected inside the connection frame 7. The variable resistor 9 can adjust the resistance value, thereby changing the value of the current passing through, thereby changing the speed of the fan. The variable resistor 9 is connected to the stator winding 2 through a wire, a fixed ring 10 is threadedly connected to one side of the fixed cover 6, and a baffle 11 is fixedly connected to one side of the fixed ring 10. Heat dissipation holes 12 are evenly opened on the baffle 11, and the heat dissipation holes 12 are aligned with the heat sink 5. A connecting ring 13 is rotatably connected to the baffle 11, and the rotor 3 is sleeved on one side of the connecting ring 13. A cooling fan 14 is arranged on the other side of the connecting ring 13. The cooling fan 14 is used to enter the airflow, so as to guide the airflow into the fixed cover 6. The rotating shaft of the cooling fan 14 is plugged into the connecting ring 13. A first clamping plate 15 is evenly fixedly connected to the side of the fixed ring 10 away from the baffle 11. A rotating rod 16 is fixedly connected to the center of the first clamping plate 15, and a second clamping plate 17 is sleeved on the rotating rod 16. Conical recesses 22 are evenly penetrated on the second clamping plate 17, and a dustproof net 23 is fixedly connected in the conical recess 22. By rotating the second clamping plate 17, the dustproof net 23 can be made to correspond to the recess of the first clamping plate 15, thereby preventing dust from entering between the motor housing 4 and the fixed cover 6.

[0018] Among them, handles 19 are provided on the upper and lower sides of the second clamping plate 17 , and the handles 19 are fixedly connected to the second clamping plate 17 . The second clamping plate 17 can be easily rotated by providing the handles 19 .

[0019] The rotating rod 16 is threadedly connected to the fixing sleeve 18 , and the fixing sleeve 18 is in contact with the second clamping plate 17 . By providing the fixing sleeve 18 , the rotation of the second clamping plate 17 can be conveniently adjusted during disassembly.

[0020] The guide block 20 is fixedly connected to one side of the fixing ring 10 , and the guide block 20 is in a truncated cone structure. By providing the guide block 20 , the airflow formed by the cooling fan 14 can be guided.

[0021] A retaining ring 21 is evenly and fixedly connected inside the fixed cover 6 , and the retaining ring 21 is located on one side of the fixed ring 10 . By providing the retaining ring 21 , a shielding structure is formed, which can facilitate heat dissipation.

[0022] Working principle: When the fan motor and the variable resistor 9 are dissipating heat, loosen the fixing sleeve 18, and use the handle 19 to rotate and adjust the second card plate 17, so that the dustproof net 23 of the second card plate 17 corresponds to the groove formed between the first card plate 15. At this time, the cooling fan 14 forms a guide airflow and passes the airflow from the heat dissipation hole 12 through the multiple baffle rings 21 and the connecting frame 7. At this time, the heat generated by the variable resistor 9 and the motor is entrained, so as to facilitate the overflow of hot air, which not only facilitates the speed control of the motor fan, but also facilitates the heat dissipation of the motor fan when adjusting the speed.

[0023] The above are only preferred implementations of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

[0024] Other parts of the present invention not described in detail belong to the prior art and will not be described in detail here.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An industrial fan speed control device, comprising a substrate (1), a stator winding (2), a rotor (3), a motor housing (4) and a heat sink (5), characterized in that: A fixed cover (6) is fixedly connected to one side of the base plate (1), a connection frame (7) is fixedly connected to one side of the fixed cover (6), and a cover (8) is threadedly connected to one side of the connection frame (7), a variable resistor (9) is fixedly connected inside the connection frame (7), and the variable resistor (9) is connected to the stator winding (2) via a wire, a fixed ring (10) is threadedly connected to one side of the fixed cover (6), and a baffle (11) is fixedly connected to one side of the fixed ring (10), and heat dissipation holes (12) are evenly opened on the baffle (11), and the heat dissipation holes (12) correspond to the heat dissipation plate (5), and the baffle (11) is rotated The connecting ring (13) is movably connected to the rotor (3), one side of the connecting ring (13) is sleeved with the rotor (3), the other side of the connecting ring (13) is provided with a cooling fan (14), the rotating shaft of the cooling fan (14) is plugged into the connecting ring (13), the fixing ring (10) is evenly fixedly connected with a first clamping plate (15) on the side away from the baffle (11), the center of the first clamping plate (15) is fixedly connected with a rotating rod (16), the rotating rod (16) is sleeved with a second clamping plate (17), the second clamping plate (17) is evenly penetrated with a conical recess (22), and a dustproof net (23) is fixedly connected in the conical recess (22).

2. An industrial fan speed control device as claimed in claim 1, characterized in that: A handle (19) is fixedly connected to the second clamping plate (17), and the handle (19) is located at the upper and lower sides of the second clamping plate (17).

3. An industrial fan speed control device as claimed in claim 2, characterized in that: The second clamping plate (17) is in contact with a fixing sleeve (18), and the fixing sleeve (18) is threadedly connected to the rotating rod (16).

4. The industrial fan speed control device according to claim 1, characterized in that: A guide block (20) is fixedly connected to one side of the fixing ring (10), and the guide block (20) is in a truncated cone structure.

5. An industrial fan speed control device as claimed in claim 4, characterized in that: A retaining ring (21) is provided on the side of the fixing ring (10) away from the guide block (20), and the retaining ring (21) is evenly fixedly connected in the fixing cover (6).

Images