Large-air-volume power frequency driving motor with self-recovery overheating protection

Abstract

The utility model provides a large air volume power frequency driving motor with self-recovery overheating protection, which relates to the technical field of power frequency driving motors, and comprises a motor casing, an emergency stop mechanism, a thermal shrinkage mechanism and a plugging mechanism, the emergency stop mechanism comprises a rubber seat, and the thermal shrinkage mechanism comprises a copper pipe. The rubber seat and the copper pipe are used for detecting heat in the motor, thermal expansion occurs, the rubber seat and the copper pipe are attached to the output end of the motor, sound is generated, operation of the motor is stopped suddenly, and parts in the motor are effectively prevented from being affected by heat and damaged. According to the utility model, the copper pipe can expand under the influence of heat in the motor, and the expansion of the copper pipe can push the arc plate and the rubber seat to move, so that the rubber seat can be attached to the surface of the rotor, the rotor can be suddenly stopped, and a worker can timely turn off the power supply of the motor and stop the use of the motor; and meanwhile, the diameter of the air gap at the joint of the stator and the rotor can be adjusted by using the plugging block, so that the magnetic field of the motor can be regulated and controlled, and magnetic energy leakage is prevented.

Description

Technical Field

[0001] This utility model relates to the field of power frequency drive motor technology, and in particular to a large air volume power frequency drive motor with self-recovering overheat protection. Background Technology

[0002] A power frequency motor is an AC motor with a constant current frequency of 50Hz. It is divided into power frequency asynchronous motors and power frequency synchronous motors. AC asynchronous motors are motors that operate at AC voltage and are widely used in household appliances such as electric fans, refrigerators, washing machines, air conditioners, hair dryers, vacuum cleaners, range hoods, dishwashers, electric sewing machines, and food processing machines, as well as various power tools and small electromechanical equipment.

[0003] Currently, when using power frequency drive motors, the output end of the motor is connected to an external device for driving. When the motor is used for a long time, it is easy to generate a lot of heat. It is impossible to automatically stop the motor based on the heat inside the motor, which reduces the service life of the motor.

[0004] Meanwhile, during the use of a power frequency drive motor, the magnetic field of the motor cannot be controlled, resulting in insufficient or excessive magnetic field on the power frequency drive motor, which causes damage to the power frequency drive motor.

[0005] Therefore, it is necessary to propose a new type of high-volume industrial frequency drive motor with self-recovering overheat protection. Utility Model Content

[0006] The purpose of this invention is to solve the problems of motors being unable to automatically recover from emergency stops based on heat conditions and the inability to control the magnetic field of motors, and to propose a high-volume industrial frequency drive motor with self-recovering overheat protection.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a high-volume industrial frequency drive motor with self-recovering overheat protection, including a motor housing, an emergency stop mechanism, a heat shrink mechanism, and a sealing mechanism. The emergency stop mechanism includes a rubber seat, and the heat shrink mechanism includes a copper tube. The rubber seat and copper tube are used to detect the heat inside the motor. When the motor expands due to heat, the rubber seat and copper tube come into contact with the output end of the motor, producing a sound that stops the motor's operation. This effectively prevents damage to the motor's internal parts caused by heat. The rotor can be stopped immediately, allowing the operator to shut off the motor power and cease using the motor. The recovery status of the motor can be judged by the extension and retraction of the moving rod, allowing the motor to be used again. This provides overheat protection for the motor and allows adjustment of the air gap size at the connection between the sealing block and the stator and rotor. When the air gap size is smaller, leakage flux can be reduced, allowing more flux to be used in actual operation, thereby improving the overall efficiency of the motor.

[0008] Preferably, the emergency stop mechanism further includes an arc plate, the inner wall of which is fixedly connected to a rubber seat, and a movable rod is fixedly connected to the upper surface of the arc plate. A rubber sleeve is fitted on the outer surface of the movable rod. The rubber seat can increase the friction of the shaft and enable the shaft to stop suddenly.

[0009] Preferably, the heat shrinking mechanism further includes a limiting seat, the inner bottom wall of which is fixedly connected to the top surface of the copper tube, and the limiting seat is fixedly connected to both sides of the moving rod. The height of the limiting seat is less than that of the moving rod. The limiting seat 1 can limit the expansion of the copper tube. The bottom of the copper tube is exposed, allowing the copper tube to expand and extend concentrated at the bottom end.

[0010] Preferably, the sealing mechanism further includes a hanging rod, and the sealing block has a hanging hole inside, which is fitted and connected with the hanging rod. The air gap size at the connection between the sealing block 1 and the stator and rotor is adjusted by fitting the designated hanging hole and the hanging rod together.

[0011] Preferably, a fixing seat is fixedly connected to the lower surface of the motor housing, a rear cover is connected to the side surface of the motor housing by bolt thread, and a bearing seat is movably connected to the side surface of the motor housing by bolt. The interior of the bearing seat is slidably connected to the moving rod. The connection between the bearing seat and the rotor makes the rotor more stable when rotating, which can reduce the shaking frequency of the rotor during use.

[0012] Preferably, a stator is fitted inside the motor housing, and a rotor is fitted inside the stator. The left end of the rotor extends out of the bearing housing. The air gap at the connection between the stator and the rotor is fitted with a sealing block. The hanging rod is fixedly connected to the side surface of the stator. The rotor can be rotated and used by utilizing the magnetic field between the rotor and the stator. There is an air gap at the connection between the stator and the rotor.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, by rotating the moving rod upward, the limiting seat can fit against the inner wall of the bearing seat. Since the copper tube and the arc plate are adjacent but not fixed, the limiting seat can limit the expansion of the copper tube. The lower part of the copper tube is exposed, allowing the copper tube to expand and extend at the bottom. When the length of the copper tube is extended, it can push the arc plate to move, allowing the rubber seat to fit against the surface of the rotor. By continuously increasing the friction of the rotor surface, the rotor can be stopped in an emergency. The operator can promptly shut off the motor power and stop using the motor. The recovery status of the motor can be judged based on the extension and retraction of the moving rod, and the motor can be used again, thereby achieving the purpose of overheat protection for the motor.

[0015] 2. In this utility model, the sealing block can be connected by the fitting of the hanging rod and the hanging hole. According to the magnetic field required by the motor, the specified hanging hole and the hanging rod can be fitted together to adjust the air gap size at the connection between the sealing block and the stator and rotor. When the air gap size is small, the leakage flux can be reduced, so that more magnetic flux can be used for actual work, thereby improving the overall efficiency of the motor. Attached Figure Description

[0016] Figure 1 This utility model presents an overall perspective view of a large-volume industrial frequency drive motor with self-recovering overheat protection;

[0017] Figure 2 A three-dimensional view of an arc plate structure for a high-volume power frequency drive motor with self-recovering overheat protection is provided for this utility model.

[0018] Figure 3 A three-dimensional view of the rotor structure of a high-volume power frequency drive motor with self-recovering overheat protection is provided for this utility model.

[0019] Figure 4 This invention proposes a high-volume power frequency drive motor with self-recovering overheat protection. Figure 3 Enlarged 3D view of point A in the middle.

[0020] Legend: 1. Motor housing; 2. Bearing housing; 3. Rotor; 4. Fixing seat; 5. Rear cover; 6. Heat shrink mechanism; 601. Limit seat; 602. Copper tube; 7. Emergency stop mechanism; 701. Arc plate; 702. Rubber seat; 703. Moving rod; 8. Stator; 9. Sealing mechanism; 901. Sealing block; 902. Hanging rod; 903. Hanging hole. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Please see Figures 1-4This utility model provides a technical solution: including a motor housing 1, an emergency stop mechanism 2, a heat shrink mechanism 6, and a sealing mechanism 9. The emergency stop mechanism 7 includes a rubber seat 702, and the heat shrink mechanism 6 includes a copper tube 602. The rubber seat 702 and the copper tube 602 are used to detect the heat inside the motor. When the heat expands, they fit together with the output end of the motor and make a sound to stop the operation of the motor. This effectively prevents the parts inside the motor from being damaged by heat.

[0024] The sealing mechanism 9 includes a sealing block 901, which is used to adjust the number of air gaps at the magnetic field, thereby controlling the magnetic field of the motor.

[0025] As the heat inside the motor increases, the copper tube 602 expands due to the heat. This expansion pushes the arc plate 701 and the rubber seat 702, allowing the rubber seat 702 to contact the surface of the rotor 3. By continuously increasing the friction on the surface of the rotor 3, the rotor 3 can be stopped in an emergency. The operator can then shut off the motor power and stop using the motor. The recovery status of the motor can be determined by the extension and retraction of the moving rod 703, allowing the motor to be used again. At the same time, the sealing block 901 can be used to adjust the air gap diameter at the connection between the stator 8 and the rotor 3, thereby controlling the magnetic field of the motor and preventing leakage of magnetic energy.

[0026] like Figures 1-2 As shown, the emergency stop mechanism 7 also includes an arc plate 701. The inner wall of the arc plate 701 is fixedly connected to the rubber seat 702. A moving rod 703 is fixedly connected to the upper surface of the arc plate 701. A rubber sleeve is fitted on the outer surface of the moving rod 703.

[0027] The rubber sleeve can increase the friction at the connection between the moving rod 703 and the bearing seat 2, making the moving rod 703 less prone to movement when not pushed by external force. When the copper tube 602 expands continuously due to heat, the moving rod 703 can slide inside the bearing seat 2. The moving rod 703 can then move, allowing it to drive the arc plate 701 and the rubber seat 702 to move together. The rubber seat 702 can increase the friction of the shaft.

[0028] like Figure 2 As shown, the heat shrinking mechanism 6 also includes a limiting seat 601. The inner bottom wall of the limiting seat 601 is fixedly connected to the top surface of the copper tube 602. The limiting seat 601 is fixedly connected to both sides of the moving rod 703. The height of the limiting seat 601 is less than that of the moving rod 703.

[0029] Before the motor is used, the moving rod 703 can be rotated upward so that the limiting seat 601 can fit against the inner wall of the bearing seat 2. Since the copper tube 602 and the arc plate 701 are adjacent but not fixed, the limiting seat 601 can limit the expansion of the copper tube 602. The lower part of the copper tube 602 is exposed, so that the copper tube 602 can expand and extend at the bottom. When the length of the copper tube 602 is extended, it can push the arc plate 701 to move.

[0030] like Figures 3-4 As shown, the sealing mechanism 9 also includes a hanging rod 902, and the sealing block 901 has a hanging hole 903 inside, and the hanging hole 903 is fitted and connected to the hanging rod 902.

[0031] By using the fitting connection between the hanging rod 902 and the hanging hole 903, the sealing block 901 can be fitted and connected to the hanging rod 902 through the hanging hole 903. According to the magnetic field required by the motor, the air gap size at the connection between the sealing block 901 and the stator 8 and rotor 3 can be adjusted by fitting the designated hanging hole 903 and the hanging rod 902. When the air gap size is smaller, the leakage flux can be reduced, so that more magnetic flux can be used for actual work, thereby improving the overall efficiency of the motor.

[0032] like Figure 1 As shown, a fixed base 4 is fixedly connected to the lower surface of the motor housing 1, a rear cover 5 is connected to the side surface of the motor housing 1 by bolt thread, a bearing seat 2 is movably connected to the side surface of the motor housing 1 by bolt, and the interior of the bearing seat 2 is slidably connected to the moving rod 703.

[0033] When the motor is in use, the fixed base 4 can be used to support the motor. The connection between the bearing housing 2 and the rotor 3 makes the rotor 3 more stable when rotating, which can reduce the shaking frequency of the rotor 3.

[0034] like Figure 3 As shown in Figure 4, a stator 8 is fitted inside the motor housing 1, a rotor 3 is fitted inside the stator 8, and the left end of the rotor 3 extends out of the bearing seat 2. The air gap at the connection between the stator 8 and the rotor 3 is fitted with a sealing block 901, and the hanging rod 902 is fixedly connected to the side surface of the stator 8.

[0035] The rotor 3 can be rotated by utilizing the magnetic field between the rotor 3 and the stator 8. Since there is an air gap at the connection between the stator 8 and the rotor 3, the magnetic field of the motor can be controlled by adjusting the size of the air gap, which makes it convenient to control the speed of the rotor 3.

[0036] The method of use and working principle of this device: By using the fitting connection between the hanging rod 902 and the hanging hole 903, the sealing block 901 can be fitted and connected to the hanging rod 902 through the hanging hole 903. According to the magnetic field required by the motor, the specified hanging hole 903 and the hanging rod 902 can be fitted and connected to adjust the air gap size at the connection between the sealing block 901 and the stator 8 and the rotor 3.

[0037] Rotate the moving rod 703 upwards so that the limiting seat 601 can fit against the inner wall of the bearing seat 2. Since the copper tube 602 and the arc plate 701 are adjacent but not fixed, the limiting seat 601 can limit the expansion of the copper tube 602. When the heat inside the motor increases, the copper tube 602 can expand due to the heat inside the motor. The expansion of the copper tube 602 can push the arc plate 701 and the rubber seat 702 to move, so that the rubber seat 702 can fit against the surface of the rotor 3. By continuously increasing the friction on the surface of the rotor 3, the rotor 3 can be stopped in an emergency. The operator can shut off the motor power in time and stop using the motor. The recovery status of the motor can be judged by the extension and retraction of the moving rod 703, and the motor can be used again.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A high-volume industrial frequency drive motor with self-recovering overheat protection, comprising a motor housing (1), an emergency stop mechanism (7), a heat shrinking mechanism (6), and a sealing mechanism (9), characterized in that: The emergency stop mechanism (7) includes a rubber seat (702), and the heat shrink mechanism (6) includes a copper tube (602). The rubber seat (702) and the copper tube (602) are used to detect the heat inside the motor. When the heat expands, they fit together with the output end of the motor and make a sound to stop the operation of the motor, effectively preventing the parts inside the motor from being damaged by heat. The sealing mechanism (9) includes a sealing block (901), which is used to adjust the number of air gaps at the magnetic field, thereby controlling the magnetic field of the motor.

2. The high-volume industrial frequency drive motor with self-recovering overheat protection according to claim 1, characterized in that: The emergency stop mechanism (7) also includes an arc plate (701), the inner wall of which is fixedly connected to a rubber seat (702), and a moving rod (703) is fixedly connected to the upper surface of the arc plate (701), with a rubber sleeve covering the outer surface of the moving rod (703).

3. The high-volume industrial frequency drive motor with self-recovering overheat protection according to claim 1, characterized in that: The heat shrinking mechanism (6) also includes a limiting seat (601), the inner bottom wall of the limiting seat (601) is fixedly connected to the top surface of the copper tube (602), the limiting seat (601) is fixedly connected to both sides of the moving rod (703), and the height of the limiting seat (601) is less than that of the moving rod (703).

4. The high-volume industrial frequency drive motor with self-recovering overheat protection according to claim 1, characterized in that: The sealing mechanism (9) also includes a hanging rod (902), and the sealing block (901) has a hanging hole (903) inside, and the hanging hole (903) is fitted and connected to the hanging rod (902).

5. The high-volume industrial frequency drive motor with self-recovering overheat protection according to claim 1, characterized in that: A fixed seat (4) is fixedly connected to the lower surface of the motor housing (1). A rear cover (5) is connected to the side surface of the motor housing (1) by bolt thread. A bearing seat (2) is movably connected to the side surface of the motor housing (1) by bolt. The interior of the bearing seat (2) is slidably connected to the moving rod (703).

6. The high-volume industrial frequency drive motor with self-recovering overheat protection according to claim 4, characterized in that: The motor housing (1) is fitted with a stator (8), the stator (8) is fitted with a rotor (3), and the left end of the rotor (3) extends out of the bearing seat (2). The air gap at the connection between the stator (8) and the rotor (3) is fitted with a sealing block (901), and the hanging rod (902) is fixedly connected to the side surface of the stator (8).

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