Explosion-proof centrifugal fan

Abstract

The utility model relates to the technical field of ventilators, and discloses an explosion-proof centrifugal ventilator which comprises a driving motor, a supporting ring plate is movably connected to the bottom of the driving motor, a supporting plate is fixedly installed at the bottom of the supporting ring plate, and temperature sensors are fixedly installed on the two sides of the supporting ring plate. Supporting columns are fixedly installed at the four corners of the surface of the supporting plate, a top plate is fixedly installed at the tops of the supporting columns, an air cooling plate is fixedly installed on the inner side of the top plate, and a fan is arranged in the air cooling plate. Through the arrangement of the support ring plate, the overall installation stability of the driving motor is enhanced, the support ring plate can be in direct contact with the driving motor, the temperature sensor is installed on the surface of the support ring plate and can sense the temperature change in the operation process of the motor in real time, and when the temperature of the motor is too high, a signal is transmitted to the central control board; and at the moment, the central control plate can control the air cooling plate to start and further cool the outer surface of the driving motor.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilators, and more specifically, to an explosion-proof centrifugal ventilator. Background Art

[0002] Centrifugal fans are mainly composed of impellers, casings, couplings, and shafts. The impeller is the main working component that generates wind pressure and transfers energy; the casing is mainly used to introduce and exhaust gas, and at the same time convert part of the kinetic energy of the gas into pressure energy; the coupling is used to connect the motor and fan to transfer torque.

[0003] For example, a centrifugal fan with publication number CN219639107U includes a centrifugal fan, a controller is provided on the right end face of the centrifugal fan, a motor is fixedly connected to the inner side of the centrifugal fan, a first threaded shaft is fixedly connected to the end of the main shaft of the motor, the first threaded shaft drives the second threaded shaft to rotate through the fixed shaft, the first threaded shaft and the second threaded shaft respectively drive the slider to slide, the slider drives the connecting block to move through the connecting rod, the connecting block drives the push plate to slide, the push plate drives the bottom plate to move through the support plate, and the height of the centrifugal fan can be automatically adjusted. At the same time, the push plate drives the pointer to slide on the scale, and the height of the centrifugal fan can be accurately adjusted. Therefore, the height of the centrifugal fan can be automatically and accurately adjusted according to the installation height of the pipeline during use, and the staff does not need to lift the centrifugal fan, thereby reducing the labor intensity of the staff.

[0004] However, based on the working principle proposed in the above patent, the applicant believes that although the above device can reduce the labor intensity of the staff to a certain extent, in actual use, the motor is prone to high temperature and high explosion risks due to high-intensity operation. The above device lacks effective explosion-proof and cooling capabilities, and there are certain safety hazards when used.

[0005] Therefore, in view of the above problems, an explosion-proof centrifugal fan is proposed. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the utility model provides an explosion-proof centrifugal fan, which has good advantages of explosion-proofing and cooling of the motor.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an explosion-proof centrifugal fan, comprising a driving motor, a supporting ring plate movably connected to the bottom of the driving motor, a support plate fixedly installed on the bottom of the supporting ring plate, temperature sensors fixedly installed on both sides of the supporting ring plate, support columns fixedly installed on the four corners of the support plate surface, a top plate fixedly installed on the top of the support column, an air-cooling plate fixedly installed on the inner side of the top plate, a fan is arranged inside the air-cooling plate, and ventilation sheets are fixedly installed on the upper surface of the air-cooling plate.

[0008] As a preferred technical solution of the utility model, a battery box is fixedly installed on the surface of the air-cooling plate, and a central control panel is fixedly installed on the top of the battery box.

[0009] As a preferred technical solution of the present utility model, operation buttons are fixedly mounted on the surface of the central control panel, and display screens are arranged on both sides of the operation buttons.

[0010] As a preferred technical solution of the utility model, a pad is fixedly installed on the bottom of the support plate, and a connecting plate is fixedly installed on the inner side of the pad.

[0011] As a preferred technical solution of the utility model, the inner side of the driving motor is movably connected with a centrifugal rotor blade, and the centrifugal rotor blade is installed on the inner side of the centrifugal cavity.

[0012] As a preferred technical solution of the utility model, the centrifugal chamber is arranged in the inner cavity of the volute, an air outlet pipe is fixedly installed on the top of the volute, and an air inlet is arranged on the back of the volute.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model facilitates driving the overall device to operate by setting a driving motor, and facilitates enhancing the overall installation stability of the driving motor by setting a supporting ring plate. The supporting ring plate can directly contact the driving motor, and a temperature sensor is installed on its surface, which can sense the temperature change during the operation of the motor in real time. When the motor temperature is too high, the signal will be transmitted to the central control board. At this time, the central control board can control the start of the air cooling plate and further cool the outer surface of the driving motor. The installation strength of the air cooling plate can be enhanced by setting the top plate, and the convection of the air inside the air cooling plate can be enhanced by setting the ventilation sheet.

[0015] 2. The utility model facilitates users to install batteries through the arrangement of the battery box, facilitates automatic electrical control of the air-cooling plate through the arrangement of the central control panel, facilitates users to electrically control the device through the arrangement of the operation button, facilitates real-time display of the temperature of the drive motor through the arrangement of the display screen, facilitates enhanced stability of the overall device after installation through the arrangement of the pad and the fixing plate, facilitates generation of centrifugal wind force through the arrangement of the centrifugal blades, facilitates outflow of attracted gas through the arrangement of the air outlet duct, and facilitates the user to attract airflow from the external environment into the volute through the arrangement of the air inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a frontal perspective schematic diagram of the overall structure of the utility model;

[0017] Figure 2It is a three-dimensional back view of the overall structure of the utility model;

[0018] Figure 3 It is a partially cutaway enlarged stereoscopic schematic diagram of the centrifugal rotor blade structure of the utility model;

[0019] Figure 4 It is a partially enlarged three-dimensional schematic diagram of the air-cooling plate structure of the utility model;

[0020] Figure 5 It is a partially enlarged three-dimensional schematic diagram of the support ring plate structure of the utility model.

[0021] In the figure: 1. drive motor; 2. support ring plate; 3. support plate; 4. temperature sensor; 5. support column; 6. top plate; 7. air cooling plate; 8. ventilation plate; 9. battery box; 10. central control panel; 11. operation button; 12. display screen; 13. pad; 14. fixing plate; 15. centrifugal rotor; 16. centrifugal chamber; 17. volute; 18. air outlet; 19. air inlet. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figures 1 to 5 As shown, the utility model provides an explosion-proof centrifugal fan, including a driving motor 1, a supporting ring plate 2 is movably connected to the bottom of the driving motor 1, a supporting plate 3 is fixedly installed at the bottom of the supporting ring plate 2, temperature sensors 4 are fixedly installed on both sides of the supporting ring plate 2, supporting columns 5 are fixedly installed on the four corners of the surface of the supporting plate 3, a top plate 6 is fixedly installed on the top of the supporting column 5, an air cooling plate 7 is fixedly installed on the inner side of the top plate 6, a fan is arranged inside the air cooling plate 7, and a ventilation sheet 8 is fixedly installed on the upper surface of the air cooling plate 7; the driving motor 1 is convenient for driving the entire device to operate, and the driving The motor 1 is convenient for driving the entire device to operate. The support ring plate 2 is convenient for enhancing the overall installation stability of the drive motor 1. The support ring plate 2 can directly contact the drive motor 1, and a temperature sensor 4 is installed on its surface, which can sense the temperature changes during the operation of the motor in real time. When the motor temperature is too high, the signal will be transmitted to the central control board 10. At this time, the central control board 10 can control the start of the air cooling plate 7 and further cool the outer surface of the drive motor 1. The top plate 6 is convenient for enhancing the installation strength of the air cooling plate 7, and the ventilation sheet 8 is convenient for enhancing the convection of air inside the air cooling plate 7.

[0024] A battery box 9 is fixedly mounted on the surface of the air-cooling plate 7 , and a central control panel 10 is fixedly mounted on the top of the battery box 9 .

[0025] The battery box 9 facilitates the user to install the battery, and the central control panel 10 facilitates automatic electrical control of the air cooling plate 7.

[0026] An operation button 11 is fixedly mounted on the surface of the central control panel 10 , and display screens 12 are arranged on both sides of the operation button 11 .

[0027] The operating button 11 allows the user to electrically control the device, and the display screen 12 allows the user to display the temperature of the drive motor 1 in real time.

[0028] A backing plate 13 is fixedly mounted on the bottom of the support plate 3 , and a fastening plate 14 is fixedly mounted on the inner side of the backing plate 13 .

[0029] The backing plate 13 and the fastening plate 14 facilitate enhancing the stability of the entire device after installation.

[0030] The inner side of the driving motor 1 is movably connected with a centrifugal rotor blade 15 , and the centrifugal rotor blade 15 is installed on the inner side of the centrifugal chamber 16 .

[0031] The centrifugal blades 15 facilitate the generation of centrifugal wind force.

[0032] The centrifugal chamber 16 is arranged in the inner cavity of the volute 17 , an air outlet pipe 18 is fixedly installed on the top of the volute 17 , and an air inlet 19 is arranged on the back of the volute 17 .

[0033] The air outlet pipe 18 facilitates the outflow of the sucked gas, and the air inlet 19 facilitates the user to suck the airflow from the external environment into the volute 17.

[0034] The working principle and use process of the utility model are as follows: first, the centrifugal impeller 15 is driven to rotate by the driving motor 1, and the external airflow is drawn in from the air inlet 19 under the action of centrifugal force, and then thrown out from the air outlet 18. After the driving motor 1 runs for a period of time, its temperature may rise. The support ring plate 2 is used to enhance the overall installation stability of the driving motor 1. The support ring plate 2 can directly contact the driving motor 1, and a temperature sensor 4 is installed on its surface, which can sense the temperature change during the operation of the motor in real time. When the motor temperature is too high, the signal will be transmitted to the central control board 10. At this time, the central control board 10 can control the start-up of the air cooling plate 7 and further cool the outer surface of the driving motor 1.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof centrifugal fan, comprising a drive motor (1), characterized in that: The bottom of the driving motor (1) is movably connected to a support ring plate (2), the bottom of the support ring plate (2) is fixedly mounted with a support plate (3), both sides of the support ring plate (2) are fixedly mounted with temperature sensors (4), the four corners of the surface of the support plate (3) are fixedly mounted with support columns (5), the top of the support column (5) is fixedly mounted with a top plate (6), the inner side of the top plate (6) is fixedly mounted with an air cooling plate (7), a fan is arranged inside the air cooling plate (7), and a ventilation plate (8) is fixedly mounted on the upper surface of the air cooling plate (7).

2. An explosion-proof centrifugal fan according to claim 1, characterized in that: A battery box (9) is fixedly mounted on the surface of the air cooling plate (7), and a central control panel (10) is fixedly mounted on the top of the battery box (9).

3. An explosion-proof centrifugal fan according to claim 2, characterized in that: An operating button (11) is fixedly mounted on the surface of the central control panel (10), and display screens (12) are arranged on both sides of the operating button (11).

4. The explosion-proof centrifugal fan according to claim 1, characterized in that: A backing plate (13) is fixedly mounted on the bottom of the support plate (3), and a fastening plate (14) is fixedly mounted on the inner side of the backing plate (13).

5. The explosion-proof centrifugal fan according to claim 1, characterized in that: The inner side of the driving motor (1) is movably connected to a centrifugal rotor blade (15), and the centrifugal rotor blade (15) is installed on the inner side of the centrifugal chamber (16).

6. An explosion-proof centrifugal fan according to claim 5, characterized in that: The centrifugal chamber (16) is arranged in the inner cavity of the volute (17); an air outlet pipe (18) is fixedly installed on the top of the volute (17); and an air inlet (19) is arranged on the back of the volute (17).

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