Fan structure for sealing heating box body

Abstract

The utility model discloses a fan structure for sealing a heating box body, which comprises a sealing box body capable of being opened and closed, a fan structure is arranged on the side wall of any side of the sealing box body, and the fan structure comprises a fan body assembly arranged inside the side wall of the sealing box body and a transmission assembly arranged outside the side wall of the sealing box body. The fan body assembly and the transmission assembly are oppositely arranged on the inner side and the outer side of the side wall of the same sealed box body, power of a motor arranged outside the sealed box body is transmitted to a fan arranged in the sealed box body through magnetic force of high-temperature-resistant magnets in the fan body assembly and the transmission assembly, the fan is driven to stir air in the sealed box body, and the air in the sealed box body is cooled. And meanwhile, the sealing performance of the box body is not damaged, the overall structure is simple, the safety is high, and the device is suitable for popularization.

Description

Technical Field

[0001] The utility model relates to the field of the structure of a sealed heating box body, in particular to a fan structure for a sealed heating box body. Background Art

[0002] The sealed heating box body is mainly used in the field of heating and drying. It is required that the box body has good sealing performance and the temperature inside the box body is uniform. A temperature measuring element is arranged inside the traditional sealed heating box body to control the heating element inside the sealed box body. However, since the temperature measuring element only selects a few points for temperature measurement in most cases, the measured temperature cannot accurately reflect the actual temperature inside the sealed box body. The factor leading to this result is that the specific gravities of hot and cold air in the sealed box body are different, and the temperatures at different positions are different. Therefore, in order to accurately measure the temperature inside the sealed box body, the manufacturer will set a fan inside the sealed box body. The fan stirs the air to accelerate the air circulation inside the box body and ensure that the temperature inside the box body is consistent.

[0003] Generally, there are two ways to set a fan inside the sealed box body. One way is to set both the motor and the fan inside the box body. However, the motor cannot withstand the high temperature inside the box body, and there are great potential safety hazards. The other way is to set the fan inside the box body and the motor outside the box body. This way requires the spindle of the motor to penetrate the side wall of the box body, resulting in a sealing problem. Therefore, in view of the above problems, this application proposes a solution. Summary of the Invention

[0004] Purpose of the Utility Model: The purpose of the utility model is to provide a fan structure for a sealed heating box body, which does not damage the sealing performance of the sealed box body and has a safe structural design on the premise of ensuring that the fan completes the agitation of the air inside the sealed box body and evenly distributes the temperature inside the sealed box body.

[0005] Technical Solution: A fan structure for a sealed heating box body described in the utility model includes a sealable box body. A fan structure is arranged on any side wall of the sealable box body. The fan structure includes a fan body assembly arranged inside the side wall of the sealable box body and a transmission assembly arranged outside the side wall of the sealable box body. The fan body assembly and the transmission assembly are disposed on the inner and outer sides of the same side wall of the sealable box body. The high-temperature-resistant magnets in the transmission assembly and the high-temperature-resistant magnets in the fan body assembly are disposed on the inner and outer sides of the same side wall of the sealable box body.

[0006] Preferably, the transmission assembly includes a fan motor, a fan motor bracket, a fan motor side magnet mounting plate and a high-temperature-resistant magnet. The fan motor is fixedly installed on the outer side wall of the sealable box body through the fan motor bracket. A fan motor side magnet mounting plate is arranged on the output shaft of the fan motor. The high-temperature-resistant magnet is fixedly arranged at both ends of the fan motor side magnet mounting plate facing the sealable box body.

[0007] Preferably, a thread is provided on the output shaft of the fan motor, and a through hole matching the output shaft of the fan motor is provided at the center of the side mounting plate of the fan motor. After the output shaft of the fan motor extends into the through hole, nuts are provided on both sides of the plate surface of the side mounting plate of the fan motor to fix the side mounting plate of the fan motor on the output shaft of the fan motor.

[0008] Preferably, flanges for motor heat dissipation are provided at both ends of the side magnet mounting plate of the fan motor facing the motor side.

[0009] Preferably, the fan body assembly includes a fan blade, a fan spindle, a high-temperature bearing, a fan blade bracket, a side magnet mounting plate of the fan blade, and a high-temperature resistant magnet. The fan spindle penetrates through the high-temperature bearing, and the high-temperature bearing is fixedly installed on the inner side wall of the sealed box body through the fan blade bracket. A fan blade is installed at the output end of the fan spindle facing the inside of the sealed box body, and a side magnet mounting plate of the fan blade is installed at the input end. High-temperature resistant magnets are fixedly provided at both ends of the side magnet mounting plate of the fan blade.

[0010] Preferably, the high-temperature bearing is arranged on a high-temperature bearing mounting plate in the fan blade bracket. Retaining rings are respectively arranged on both end faces at the position of the high-temperature bearing on the high-temperature bearing mounting plate, and the retaining rings are fixedly connected by screws to position the high-temperature bearing.

[0011] Preferably, both the fan body assembly and the transmission assembly are fixed on the side wall of the sealed box body by welding.

[0012] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0013] The present invention utilizes the magnetic force of the high-temperature resistant magnet to transmit the power of the motor arranged outside the sealed box body to the fan arranged inside the sealed box body, driving the fan to stir the air inside the sealed box body, evenly distributing the temperature inside the sealed box body, and at the same time not damaging the sealing performance of the box body. The overall structure is simple, with high safety, and is suitable for popularization. Description of the Drawings

[0014] Figure 1 This is the front view of the present invention.

[0015] Figure 2 This is the top view of the present invention.

[0016] Figure 3 This is the side sectional view of the present invention.

[0017] Wherein: 1. Sealed box body; 2. Fan motor; 3. Fan motor bracket; 4. Magnet mounting plate on the fan motor side; 5. High-temperature resistant magnet; 6. Nut; 7. Hem; 8. Fan blade; 9. Fan spindle; 10. High-temperature bearing; 11. Fan blade bracket; 12. Magnet mounting plate on the fan blade side; 13. High-temperature bearing mounting plate; 14. Retaining ring. Detailed implementation mode

[0018] The technical solution of the present utility model will be further described below with reference to the accompanying drawings.

[0019] See the attached Figures 1 to 3 Figure. A fan structure for a sealed heating box body shown in the present utility model includes an openable and closable sealed box body 1. A fan structure is provided on the back side wall of the sealed box body 1. The fan structure includes a fan body assembly arranged inside the sealed box body 1 and a transmission assembly arranged outside the sealed box body 1. The fan body assembly and the transmission assembly are opposed to the inside and outside of the back side wall of the sealed box body 1. At the same time, the high-temperature resistant magnets 5 in the transmission assembly and the high-temperature resistant magnets 5 in the fan body assembly are opposed to the inside and outside of the back side wall of the sealed box body 1.

[0020] In this embodiment, the transmission assembly includes a fan motor 2, a fan motor bracket 3, a magnet mounting plate 4 on the fan motor side, and a high-temperature resistant magnet 5. The fan motor 2 is fixedly installed on the outer side wall of the sealed box body 1 through the fan motor bracket 3. A magnet mounting plate 4 on the fan motor side is provided on the output shaft of the fan motor 2. The high-temperature resistant magnets 5 are fixedly arranged at both ends of the magnet mounting plate 4 on the fan motor side facing the sealed box body 1.

[0021] In this embodiment, the output shaft of the fan motor 2 is provided with a thread. A perforation matching the output shaft of the fan motor 2 is provided at the center of the magnet mounting plate 4 on the fan motor side. After the output shaft of the fan motor 2 extends into the perforation, the magnet mounting plate 4 on the fan motor side is fixed on the output shaft of the fan motor 2 by arranging nuts 6 on both sides of the plate surface of the magnet mounting plate 4 on the fan motor side.

[0022] In this embodiment, hems 7 for dissipating heat of the fan motor 2 are provided at both ends of the magnet mounting plate 4 on the fan motor side facing the fan motor 2.

[0023] In this embodiment, the fan body assembly includes a fan blade 8, a fan spindle 9, a high-temperature bearing 10, a fan blade bracket 11, a magnet mounting plate 12 on the fan blade side, and a high-temperature resistant magnet 5. The fan spindle 9 penetrates through the high-temperature bearing 10. The high-temperature bearing 10 is fixedly installed on the inner side wall of the sealed box body 1 through the fan blade bracket 11. The output end of the fan spindle 9 is installed with a fan blade 8 facing the inside of the sealed box body 1, and the input end is installed with a magnet mounting plate 12 on the fan blade side. High-temperature resistant magnets 5 are fixedly arranged at both ends of the magnet mounting plate 12 on the fan blade side.

[0024] In this embodiment, the high-temperature bearing 10 is arranged on the high-temperature bearing mounting plate 13 in the fan blade bracket 11. Retaining rings 14 are respectively arranged on both end faces at the position of the high-temperature bearing 10 on the high-temperature bearing mounting plate 13. The retaining rings 14 are fixedly connected by screws to position the high-temperature bearing 10.

[0025] In this embodiment, both the fan assembly and the transmission assembly are fixed to the back side wall of the sealed box body 1 by welding.

[0026] When this application is working, the fan motor 2 in the transmission assembly works. The output shaft of the fan motor 2 drives the fan motor side magnet mounting plate 4 to rotate, thereby driving the high-temperature resistant magnet 5 arranged on the fan motor side magnet mounting plate 4 to rotate. The high-temperature resistant magnet 5 in the transmission assembly rotates, and drives the high-temperature resistant magnet 5 arranged inside the sealed box body 1 to rotate through magnetic force. After the high-temperature resistant magnet 5 inside the sealed box body 1 rotates, it drives the fan blade side magnet mounting plate 12 to rotate, thereby driving the fan spindle 9 to rotate. The rotation of the fan spindle 9 drives the fan blade 8 to rotate, completing the agitation of the gas inside the sealed box body 1 and evenly distributing the temperature inside the sealed box body 1. The entire working process is completed.

Claims

1. A fan structure for a sealed heating box, comprising an openable and closable sealed box, characterized in that: A fan structure is arranged on the side wall of any one side of the sealed box body, and the fan structure includes a fan body assembly arranged inside the side wall of the sealed box body and a transmission assembly arranged outside the side wall of the sealed box body, the fan body assembly and the transmission assembly are arranged opposite to each other on the inner and outer sides of the same side wall of the sealed box body, and the high-temperature resistant magnet in the transmission assembly and the high-temperature resistant magnet in the fan body assembly are arranged opposite to each other on the inner and outer sides of the same side wall of the sealed box body.

2. A fan structure for a sealed heating box according to claim 1, characterized in that: The transmission assembly includes a fan motor, a fan motor bracket, a fan motor side magnet mounting plate and a high temperature resistant magnet. The fan motor is fixedly mounted on the outer side wall of the sealed box through the fan motor bracket. The fan motor side magnet mounting plate is arranged on the output shaft of the fan motor. The high temperature resistant magnet is fixedly arranged at both ends of the fan motor side magnet mounting plate facing the sealed box.

3. A fan structure for a sealed heating box according to claim 2, characterized in that: The output shaft of the fan motor is provided with a thread, and the center of the fan motor side mounting plate is provided with a through hole matching the output shaft of the fan motor. After the output shaft of the fan motor is extended into the through hole, the fan motor side mounting plate is fixed to the output shaft of the fan motor by arranging nuts on both sides of the plate surface of the fan motor side mounting plate.

4. A fan structure for a sealed heating box according to claim 2, characterized in that: The two ends of the fan motor side magnet mounting plate facing the fan motor are provided with folded edges for heat dissipation of the fan motor.

5. The fan structure for a sealed heating box according to claim 1, characterized in that: The fan body assembly includes fan blades, a fan shaft, a high-temperature bearing, a fan blade bracket, a fan blade side magnet mounting plate and a high-temperature resistant magnet. The fan shaft passes through the high-temperature bearing, and the high-temperature bearing is fixedly mounted on the inner side wall of the sealed box through the fan blade bracket. The output end of the fan shaft is equipped with a fan blade, facing the inside of the sealed box, and the input end is equipped with a fan blade side magnet mounting plate, and high-temperature resistant magnets are fixedly provided at both ends of the fan blade side magnet mounting plate.

6. A fan structure for a sealed heating box according to claim 5, characterized in that: The high-temperature bearing is arranged on a high-temperature bearing mounting plate in the fan blade bracket, and retaining rings are respectively arranged on both side end faces of the position where the high-temperature bearing is arranged on the high-temperature bearing mounting plate, and the retaining rings are fixedly connected by screws to position the high-temperature bearing.

7. A fan structure for a sealed heating box according to claim 1, characterized in that: The fan body assembly and the transmission assembly are both fixed on the side wall of the sealing box body by welding.

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