Quick drying device for insulating paint of three-phase asynchronous motor

By designing a quick drying device for insulating paint for three-phase asynchronous motors, the combination of air inlet duct, drying box, electric heating wire and slide rails, the problem of insulating paint not being sufficiently dried is solved, and rapid and effective drying is achieved, which improves insulation performance and motor service life.

CN222817256UActive Publication Date: 2025-05-02TAIZHOU JINDA MOTOR CO LTD
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Patent Information

Application Number
CN202421569096.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-04
Publication Date
2025-05-02
Estimated Expiration
2034-07-04

AI Technical Summary

Technical Problem

The insulating paint of three-phase asynchronous motors is not sufficiently dry, resulting in a degradation of insulation performance, increasing motor energy consumption, and may cause serious electrical failures.

Method used

A three-phase asynchronous motor insulated paint rapid drying device is designed, including air inlet duct, drying box, electric heating wire and slide rail. External air is introduced through the drainage fan, the air is heated by the electric heating wire, and the material bearing vehicle is moved through the slide rail, and the three-phase asynchronous motor is placed in the drying box for drying.

Benefits of technology

By sealing drying air, insulating heat and heating, the three-phase asynchronous motor insulation paint can be quickly and efficiently dried, improving insulation performance, extending the service life of the motor, and avoiding electrical failures.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model provides a three-phase asynchronous motor insulating paint fast drying device, which comprises an air inlet pipe and an embedding seat, a group of drainage fans for leading in external air are arranged in the right end of the air inlet pipe, a group of air inlets for leading in external air are arranged at the lower end of the right side of the air inlet pipe, and the embedding seat is arranged in the air inlet pipe. An air inlet is formed in the inner cavity, a group of air inlet separation nets used for filtering dust in air are arranged in the air inlet, and a group of drying boxes used for drying insulating paint on the outer side of the three-phase asynchronous motor are arranged at the lower end of the air inlet. The drying box is provided with an inner cavity, drying air in the inner cavity is subjected to heat preservation, a sliding rail is used for pushing a material bearing trolley to move left and right, external air is heated through an electric heating wire and a heat insulation shell and then guided into the drying box, and the multiple sets of three-phase asynchronous motors are conveyed and moved into the inner cavity through the material bearing trolley.
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Description

Technical Field

[0001] The utility model belongs to the technical field of three-phase asynchronous motor drying, and relates to a three-phase asynchronous motor insulating paint fast drying device. Background Art

[0002] The three-phase asynchronous motor is an induction motor that relies on three-phase AC current (with a phase difference of 120 degrees) to power and drive its operation. Its core working principle lies in the slip between its rotor and the stator rotating magnetic field, that is, the rotor rotates in the same direction as the stator rotating magnetic field but at a different speed. Due to the existence of this slip, the three-phase asynchronous motor can achieve effective energy conversion. If the three-phase asynchronous motor insulating paint cannot be dried quickly after coating, a series of problems may occur, seriously affecting the performance and service life of the motor.

[0003] The main function of insulating varnish is to provide electrical insulation for the motor to prevent current leakage and short circuit. If the insulating varnish is not fully dried, its insulation performance will be greatly reduced, making the motor prone to partial discharge and leakage during operation. This not only increases the energy consumption of the motor, but may also cause more serious electrical failures.

[0004] Due to the decline in insulation performance, the motor will generate more heat during operation, causing the motor temperature to rise rapidly. Excessive temperature will not only affect the electrical performance of the motor, but may also damage the mechanical structure and materials of the motor, reducing the service life of the motor. Therefore, a three-phase asynchronous motor insulation paint fast drying device is urgently needed to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a device for quickly drying insulating varnish of a three-phase asynchronous motor to solve the problems raised in the above-mentioned background technology.

[0006] The utility model is realized by the following technical scheme: a three-phase asynchronous motor insulating paint fast drying device comprises: an air inlet pipe and an embedded seat, wherein a group of drainage fans for introducing external air are arranged inside the right end of the air inlet pipe;

[0007] A group of air inlets for introducing external air is provided at the lower right end of the air inlet pipe, and a group of air inlet screens for filtering dust in the air are provided inside the air inlet;

[0008] A drying box for drying the insulating paint on the outside of the three-phase asynchronous motor is provided at the lower end of the air inlet, two groups of doors for introducing the material receiving vehicle are provided on the right side of the drying box, and two groups of hinges for flipping the doors open and closed are provided on the outside of the doors. The doors can be used to seal the interior of the inner cavity, thereby keeping the dry air inside the inner cavity warm.

[0009] As a preferred embodiment, a group of positioning locks for locking the warehouse door are provided at the upper end of the warehouse door, and a platform for laying slide rails is provided at the lower end of the drying box. Two groups of slide rails for guiding the movement of the material receiving vehicle are provided at the upper end of the platform, and the material receiving vehicle can be pushed to move left and right by using the slide rails.

[0010] As a preferred embodiment, a group of material receiving carts for guiding several groups of three-phase asynchronous motors are provided at the upper end of the slide rail, and a group of storage frames for limiting and receiving the three-phase asynchronous motors are provided inside the material receiving cart.

[0011] As a preferred embodiment, a plurality of ventilation slots for exchanging drying air are provided inside the material storage frame, and a group of inserting seats for interlocking with the bottom of the material receiving vehicle are provided at the lower end of the material storage frame.

[0012] As a preferred embodiment, a group of electric heating wires for heating external air are provided at the lower end of the air inlet screen, an insulation shell for insulating and limiting the electric heating wires is provided on the outside of the electric heating wires, and a group of conductive holes for engaging the jacks are provided on the left side of the insulation shell. The electric heating wires and the insulation shell can be used to heat the external air and then introduce it into the drying box.

[0013] As a preferred embodiment, the upper end of the thermal insulation shell and the lower end of the air inlet are interlocked, and the interior of the thermal insulation shell and several groups of electric heating wires are interlocked. The electric heating wires are a hollow structure, and the interiors of several groups of electric heating wires are interconnected with the interior of the air inlet.

[0014] As a preferred embodiment, a group of inner cavities for drying are provided inside the drying box, the bottom height of the inner cavity is flush with the cross-sectional height of the platform, the left side of the slide rail is arranged at the leftmost position inside the inner cavity, when the material receiving trolley moves to the leftmost position, the material receiving trolley can completely enter the inner cavity, and several groups of three-phase asynchronous motors can be transported and moved into the inner cavity by using the material receiving trolley.

[0015] After adopting the above technical scheme, the beneficial effects of the utility model are: by using the warehouse door to seal the inner cavity, thereby keeping the drying air inside the inner cavity warm, by using the slide rail to push the material receiving trolley to move left and right, by using the electric heating wire and the thermal insulation shell to heat the external air and then introduce it into the drying box, and by using the material receiving trolley to transport and move several groups of three-phase asynchronous motors into the inner cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of the structure of the three-phase asynchronous motor insulating paint fast drying device of the utility model, viewed from the top of the right front oblique side;

[0018] Figure 2 It is a schematic diagram of the structure of the drying box in the three-phase asynchronous motor insulating paint fast drying device of the utility model, viewed from the left oblique front side;

[0019] Figure 3 It is a top view structural schematic diagram of several groups of motor heating wires in the three-phase asynchronous motor insulating paint fast drying device of the utility model;

[0020] Figure 4 It is a schematic diagram of the front side plan view of the material storage frame in the three-phase asynchronous motor insulating paint rapid drying device of the utility model;

[0021] In the figure: 100-air inlet duct, 110-drainage fan, 120-drying box, 130-barn door, 140-hinge, 150-positioning lock, 160-platform, 170-slide rail, 180-material receiving trolley, 190-material storage frame, 200-air inlet screen, 210-electric heating wire, 220-temperature insulation shell, 230-conductive hole, 240-ventilation slot, 250-embedded seat. 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 of 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] See also Figure 1-Figure 4 The three-phase asynchronous motor insulating paint fast drying device comprises: an air inlet pipe 100, a drying box 120, an electric heating wire 210 and a nesting seat 250, and a group of drainage fans 110 for introducing external air are arranged inside the right end of the air inlet pipe 100;

[0024] A group of air inlets for introducing external air is provided at the lower right end of the air inlet pipe 100, and a group of air inlet screens 200 for filtering dust in the air are provided inside the air inlet;

[0025] A drying box 120 for drying the insulating paint on the outside of the three-phase asynchronous motor is provided at the lower end of the air inlet. Two groups of doors 130 for introducing the material receiving vehicle 180 are provided on the right side of the drying box 120. Two groups of hinges 140 for flipping the door 130 open and close are provided on the outside of the door 130. The door 130 can be used to seal the interior of the inner cavity, thereby keeping the dry air inside the inner cavity warm.

[0026] A group of positioning locks 150 for locking the warehouse door 130 are provided at the upper end of the warehouse door 130, and a platform 160 for laying the slide rails 170 is provided at the lower end of the drying box 120. Two groups of slide rails 170 for guiding the movement of the material receiving vehicle 180 are provided at the upper end of the platform 160. The slide rails 170 can be used to push the material receiving vehicle 180 to move left and right.

[0027] A group of material receiving vehicles 180 for guiding and conveying a plurality of groups of three-phase asynchronous motors are arranged at the upper end of the slide rail 170 , and a group of material storage frames 190 for limiting and accommodating the three-phase asynchronous motors are arranged inside the material receiving vehicle 180 .

[0028] A plurality of ventilation slots 240 for exchanging dry air are arranged inside the material storage frame 190 , and a group of inserting seats 250 for interlocking with the bottom of the material receiving vehicle 180 are arranged at the lower end of the material storage frame 190 .

[0029] A group of electric heating wires 210 for heating external air is provided at the lower end of the air inlet screen 200, and an insulation shell 220 for insulating and limiting the electric heating wires 210 is provided on the outside of the electric heating wires 210. A group of conductive holes 230 for engaging the jacks are provided inside the left side of the insulation shell 220. The electric heating wires 210 and the insulation shell 220 can be used to heat the external air and then introduce it into the drying box 120.

[0030] The upper end of the insulation shell 220 is interlocked with the lower end of the air inlet, and the interior of the insulation shell 220 is interlocked with several groups of electric heating wires 210. The electric heating wires 210 are a hollow structure, and the interior of several groups of electric heating wires 210 is interconnected with the interior of the air inlet.

[0031] A group of inner cavities for drying are provided inside the drying box 120, and the bottom height of the inner cavity is flush with the cross-sectional height of the platform 160. The left side of the slide rail 170 is arranged at the leftmost position inside the inner cavity. When the material trolley 180 moves to the leftmost position, the material trolley 180 can completely enter the inner cavity, and several groups of three-phase asynchronous motors can be transported and moved into the inner cavity by using the material trolley 180.

[0032] See also Figure 1-Figure 4, as the first embodiment of the utility model: in order to solve the problem that the main function of insulating paint is to provide electrical insulation for the motor and avoid current leakage and short circuit, if the insulating paint is not fully dried, its insulation performance will be greatly reduced, making the motor prone to partial discharge, leakage and other phenomena during operation, which not only increases the energy consumption of the motor, but also may cause more serious electrical failure problems. First, the staff places the three-phase asynchronous motor that needs to be dried inside the storage frame 190, and then uses the material receiving cart 180 to guide the storage frame 190 to the inner cavity. Then the staff closes the two sets of warehouse doors 130, and after the warehouse doors 130 are completely closed by the positioning lock 150, the material receiving cart 180 is stably moved inside the inner cavity. Then the staff uses the drainage fan 110 to introduce the outside air into the air inlet through the air inlet pipe 100, and enters the inside of several groups of electric heating wires 210 through the inside of the air inlet. After the outside air is heated and dried, it is introduced into the inner cavity, and the several groups of three-phase asynchronous motors inside the storage frame 190 are dried.

[0033] See also Figure 1-Figure 4 , as the second embodiment of the utility model: based on the description in the above embodiment, further, since the height of the bottom of the inner cavity is flush with the height of the cross-section of the platform 160, the left side of the slide rail 170 is arranged at the leftmost position inside the inner cavity, when the material receiving trolley 180 moves to the leftmost position, the material receiving trolley 180 can completely enter the inner cavity, and the material receiving trolley 180 can directly dry several groups of three-phase asynchronous motors in batches. After the drying is completed, the staff can quickly export the three-phase asynchronous motors.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Three-phase asynchronous motor insulation paint fast drying device, including: An air inlet pipe (100), a drying box (120), an air inlet screen (200), an electric heating wire (210) and a seat (250), wherein a set of drainage fans (110) for introducing external air are arranged inside the right end of the air inlet pipe (100); A group of air inlets for introducing external air are provided at the lower right end of the air inlet pipe (100), and a group of air inlet screens (200) for filtering dust in the air are provided inside the air inlet; A drying box (120) for drying insulating paint on the outer side of the three-phase asynchronous motor is provided at the lower end of the air inlet; two groups of doors (130) for introducing a material receiving vehicle (180) are provided on the right side of the drying box (120); and two groups of hinges (140) for flipping the door (130) open and close are provided on the outer side of the door (130).

2. The three-phase asynchronous motor insulating paint rapid drying device according to claim 1 is characterized in that: A group of positioning locks (150) for locking the warehouse door (130) are provided at the upper end of the warehouse door (130); a platform (160) for laying the slide rails (170) is provided at the lower end of the drying box (120); and two groups of slide rails (170) for guiding the movement of the material receiving vehicle (180) are provided at the upper end of the platform (160).

3. The three-phase asynchronous motor insulating paint rapid drying device according to claim 2 is characterized in that: A group of material receiving vehicles (180) for guiding a plurality of groups of three-phase asynchronous motors are provided at the upper end of the slide rail (170), and a group of material storage frames (190) for limiting and receiving the three-phase asynchronous motors are provided inside the material receiving vehicles (180).

4. The three-phase asynchronous motor insulating paint rapid drying device according to claim 3 is characterized in that: A plurality of ventilation slots (240) for exchanging drying air are provided inside the material storage frame (190), and a group of inserting seats (250) for interlocking with the bottom of the material receiving vehicle (180) are provided at the lower end of the material storage frame (190).

5. The three-phase asynchronous motor insulating paint rapid drying device according to claim 1 is characterized in that: A group of electric heating wires (210) for heating external air are provided at the lower end of the air inlet screen (200); a thermal insulation shell (220) for insulating and limiting the electric heating wires (210) is provided on the outside of the electric heating wires (210); and a group of conductive holes (230) for engaging the jack are provided on the left side of the thermal insulation shell (220).

6. The three-phase asynchronous motor insulating paint rapid drying device according to claim 5 is characterized in that: The upper end of the thermal insulation shell (220) is interlocked with the lower end of the air inlet, and the interior of the thermal insulation shell (220) is interlocked with a plurality of groups of electric heating wires (210). The electric heating wires (210) are of a hollow structure, and the interior of the plurality of groups of electric heating wires (210) is interconnected with the interior of the air inlet.

7. The three-phase asynchronous motor insulating paint rapid drying device according to claim 2 is characterized in that: The drying box (120) is provided with a group of inner cavities for drying, the bottom height of the inner cavity is flush with the cross-sectional height of the platform (160), the left side of the slide rail (170) is arranged at the leftmost position inside the inner cavity, and when the material receiving vehicle (180) moves to the leftmost position, the material receiving vehicle (180) can completely enter the inner cavity.