Explosion-proof permanent magnet integrated machine for preventing condensate water from entering frequency converter through conductive rod

Abstract

The utility model provides a prevent explosion -proof permanent magnet integrated machine of condensate water through electric pole and enter the frequency converter, including motor pivot, rotor, stator, frequency converter casing, motor casing, electric pole and insulator, rotor, stator and motor pivot fitment, motor casing wraps rotor and stator, motor casing fits in frequency converter casing, electric pole and insulator fitment in motor casing, insulator tail part sets up male hole, male hole fitment male sealing washer, male sealing washer and insulator fitment in the external terminal of lead -in wire, electric pole is connected with the external terminal of lead -in wire. The design of male hole and male sealing washer has avoided the circuit board insulation of frequency converter etc. to be damp, so this uses the utility model can prevent the moisture or water through the electric pole and enter the motor, thereby has reduced the maintenance frequency of motor, has improved the work efficiency of motor.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof permanent magnet integrated machine production technology, and in particular to an explosion-proof permanent magnet integrated machine that prevents condensate water from entering the frequency converter through the conductive rod. Background Technology

[0002] When an explosion-proof permanent magnet motor is integrated with a frequency converter, the permanent magnet motor generates heat, causing its internal temperature to be significantly higher than its external temperature, resulting in a large temperature difference. To cool the motor, moisture or water from the outside is allowed to enter through rotating mechanisms such as the shaft. The high internal temperature of the permanent magnet motor causes this moisture to evaporate and enter the frequency converter housing via the conductive rod, leading to moisture damage to the inverter's circuit board insulation and rendering it unusable. The conductive rod of the permanent magnet motor is used by the frequency converter to supply power to the motor. The conductive rod is insulated from the motor housing by insulators, and the clearance between the conductive rod and the insulators allows moisture to easily pass into the frequency converter housing. Utility Model Content

[0003] The purpose of this invention is to provide an explosion-proof permanent magnet integrated machine that prevents condensate from entering the frequency converter through the conductive rod.

[0004] An explosion-proof permanent magnet integrated machine for preventing condensate from entering the frequency converter through a conductive rod includes a motor shaft, a rotor, a stator, a frequency converter housing, a motor housing, a conductive rod, and an insulator. The rotor and stator are fitted with the motor shaft. The motor housing encloses the rotor and stator and is installed inside the frequency converter housing. The conductive rod and insulator are fitted on the motor housing. A convex hole is opened at the tail of the insulator, and a convex sealing gasket is installed in the convex hole. The convex sealing gasket and the insulator are fitted on the external end of the lead wire. The conductive rod is connected to the external end of the lead wire.

[0005] Preferably, the insulator is installed inside the insulator sleeve, and the insulator sleeve is fixed to the motor housing by screws.

[0006] Preferably, the convex sealing gasket is a silicone sealing gasket.

[0007] The integrated permanent magnet motor and frequency converter generate heat during operation, resulting in a significantly higher internal temperature than the external temperature. This large temperature difference allows moisture from the outside of the motor to enter the frequency converter through the conductive rod, causing moisture damage to the insulation of the frequency converter's circuit boards. This invention is a novel explosion-proof permanent magnet integrated frequency converter, comprising a motor shaft, rotor, stator, frequency converter housing, motor housing, conductive rod, and insulator. A convex hole is provided at the tail of the insulator, and a convex sealing gasket is installed inside the convex hole. The convex sealing gasket and the insulator are mounted on the external end of the lead wire. The design of the convex hole and the convex sealing gasket effectively prevents moisture damage to the insulation of the frequency converter's circuit boards. This invention prevents moisture or water from entering the motor through the conductive rod, thereby reducing the frequency of motor maintenance and improving motor efficiency. Attached Figure Description

[0008] Figure 1 A schematic diagram of the structure of an explosion-proof permanent magnet integrated machine to prevent condensate from entering the frequency converter through the conductive rod; Figure 2 for Figure 1 Schematic diagram of the assembly structure of the conductor rod and insulator.

[0009] In the diagram: 1. Rotary shaft; 2. Inverter housing; 3. Motor housing; 4. Conductive rod; 5. Insulator; 6. Convex hole a; 7. Convex sealing gasket b; 8. Lead wire; 9. Insulator sheath. Detailed Implementation

[0010] To make the technical solution of this utility model easier to understand, the technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings and specific embodiments.

[0011] Please also refer to Figure 1 and Figure 2 This explosion-proof permanent magnet integrated unit, designed to prevent condensate from entering the frequency converter through conductive rods, includes a motor shaft 1, rotor, stator, frequency converter housing 2, motor housing 3, conductive rods 4, and insulators 5. The rotor and stator are fitted onto the motor shaft 1. The motor housing 3 encloses the rotor and stator and is housed within the frequency converter housing 2. The conductive rods 4 and insulators 5 are mounted on the motor housing 3. A convex hole a is formed at the tail of insulator 5, and a convex sealing gasket b is fitted inside the convex hole a. The convex sealing gasket b and insulator 5 are fitted onto the external end of the lead wire 6. The conductive rod 4 is connected to the external end of the lead wire 6. Insulator 5 is housed within an insulator sleeve 7, which is fixed to the motor housing 3 with screws. The convex sealing gasket b is a silicone sealing gasket.

[0012] The integrated permanent magnet motor and frequency converter generate heat during operation, resulting in a significantly higher internal temperature than the external temperature. This large temperature difference allows moisture from the outside of the motor to enter the frequency converter through the conductive rod, causing moisture damage to the insulation of the frequency converter's circuit boards. This invention is a novel explosion-proof permanent magnet integrated frequency converter, comprising a motor shaft, rotor, stator, frequency converter housing, motor housing, conductive rod, and insulator. A convex hole is provided at the tail of the insulator, and a convex sealing gasket is installed inside the convex hole. The convex sealing gasket and the insulator are mounted on the external end of the lead wire. The design of the convex hole and the convex sealing gasket effectively prevents moisture damage to the insulation of the frequency converter's circuit boards. This invention prevents moisture or water from entering the motor through the conductive rod, thereby reducing the frequency of motor maintenance and improving motor efficiency.

[0013] It should be noted that the embodiments described herein are only some embodiments of this utility model, and not all implementations of this utility model. These embodiments are merely illustrative and are intended only to provide a more intuitive and clear way of understanding the content of this utility model, not to limit the technical solutions described herein. All other implementation methods that can be conceived by those skilled in the art without creative effort, as well as other simple substitutions and variations of the technical solutions of this utility model, without departing from the concept of this utility model, are within the protection scope of this utility model.

Claims

1. An explosion-proof permanent magnet integrated machine that prevents condensate from entering the frequency converter through a conductive rod, characterized in that: The explosion-proof permanent magnet integrated machine that prevents condensate from entering the frequency converter through the conductive rod includes a motor shaft, rotor, stator, frequency converter housing, motor housing, conductive rod, and insulator. The rotor and stator are fitted with the motor shaft. The motor housing encloses the rotor and stator and is installed inside the frequency converter housing. The conductive rod and insulator are fitted on the motor housing. A convex hole is opened at the tail of the insulator, and a convex sealing gasket is installed in the convex hole. The convex sealing gasket and the insulator are fitted on the external end of the lead wire. The conductive rod is connected to the external end of the lead wire.

2. The explosion-proof permanent magnet integrated machine for preventing condensate from entering the frequency converter through the conductive rod as described in claim 1, characterized in that: The insulator is installed inside the insulator sleeve, which is fixed to the motor housing by screws.

3. The explosion-proof permanent magnet integrated machine for preventing condensate from entering the frequency converter through the conductive rod as described in claim 2, characterized in that: The convex sealing gasket is a silicone sealing gasket.

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