Sealed connection aluminum wire stator and motor thereof

Abstract

The utility model discloses a hermetically-connected aluminum wire stator and a motor thereof. The hermetically-connected aluminum wire stator comprises a stator core, an insulating frame, a stator winding, a power lead and a wire protecting plate, the insulating frame is nested on the stator core, a plurality of pin columns with jacks are arranged at the top end of the insulating frame at intervals, pins are correspondingly inserted into the pin columns, and the wire protection plate is clamped on the insulating frame on the outer sides of the pins. The inner end face of the wire protection plate protrudes to form a plurality of protection partition plates used for separating every two pin columns. Most of the stators of the motor are manufactured by automatic equipment, the labor intensity of workers and the working skill requirement are greatly reduced, the cost is low, the production efficiency is high, the quality is stable, the connecting points of the stators are protected by sealing insulation glue, the connecting points are completely isolated from external air, welding spot oxidation is prevented, and the service life of the stators is prolonged. And the connection reliability of the connection points is enhanced, the hidden dangers of wire breakage and loosening at the connection parts are improved, and the product quality is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and particularly relates to an aluminum wire stator with a sealed connection and a motor thereof. Background Art

[0002] An aluminum wire motor is a kind of motor, which is characterized by using aluminum wires instead of copper wires. Since the price of aluminum is less than 1 / 2 of the price of copper, and the specific gravity of aluminum is less than 1 / 3 of the specific gravity of copper, the cost advantage of aluminum is quite obvious. Therefore, more and more motor manufacturers begin to produce aluminum wire motors.

[0003] The existing aluminum wire motors used in household appliances such as electric fans, range hoods, air purifiers, and bathroom heaters are generally distributed windings with a conventional iron shell structure. For the windings, it is necessary to first wind them separately on a tooling with the help of the tooling, and then fix the windings in the iron core through a series of steps such as dropping wires and inserting wires. The stator wiring method is to wind the enameled round wire around the power line, and then connect them by tinning (soldering). Then, the solder joints are separately protected by heat shrinkable tubes. The whole production process has cumbersome procedures, low production efficiency, and the whole production process is manually operated. This requires high labor intensity and work skills for the staff, and the scrap rate is relatively high during the manual operation process, resulting in a relatively high production cost of the product; in addition, it is very difficult to ensure the solder joint quality at the connection between the power lead and the aluminum enameled wire, making the connection points prone to oxidation, wire breakage and other defects, resulting in problems such as non - power - on and short service life. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an aluminum wire stator with a sealed connection and a motor thereof in order to solve the above - mentioned problems.

[0005] The technical solution adopted by the utility model is as follows:

[0006] In the first aspect of the utility model, an aluminum wire stator with a sealed connection includes: a stator core, an insulating frame, a stator winding, a power lead, and a wire protection plate; the insulating frame is nested on the stator core, a plurality of pin columns with jacks are spaced at the top of the insulating frame, pins are correspondingly inserted on the pin columns, the wire protection plate is clamped on the insulating frame outside the pins, a plurality of protection partitions for separating two adjacent pin columns are formed by protruding the inner end face of the wire protection plate, and a plurality of potting spaces are formed by enclosing between the protection partitions, the wire protection plate and the insulating frame.

[0007] In a preferred embodiment, the stator winding is wound on the winding end of the insulating frame, and the stator winding is made of aluminum enameled wire material as a whole.

[0008] In a preferred embodiment, the heads of the stator windings are correspondingly wound around the pins, and the power leads are fixed to the pins and the stator windings by welding.

[0009] In a preferred embodiment, the heads of the stator windings are peeled by a peeling device.

[0010] In a preferred embodiment, the connection points of the power leads, the pins and the stator windings are also coated with a sealing insulating glue.

[0011] In a preferred embodiment, both the insulating frame and the wire protection board are made of nylon material.

[0012] In the second aspect of the present invention, a motor includes the above-mentioned hermetically connected aluminum wire stator. In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows:

[0013] 1. In the present invention, the connection points of the stator are protected by the sealing insulating glue, which not only completely isolates the connection points from the external air, prevents the solder joints from oxidizing, but also enhances the connection reliability of the connection points, improves the hidden dangers of disconnection and loosening at the connection points, and ensures the product quality;

[0014] 2. In the present invention, most of the stator is manufactured by automatic equipment, which greatly reduces the labor intensity of the staff and the requirements for working skills, and has the advantages of low cost, high production efficiency and stable quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the stator of the present invention;

[0016] Figure 2 is a three-dimensional structural schematic diagram of the stator after winding the stator windings in the present invention;

[0017] Figure 3 is a three-dimensional structural schematic diagram of the power leads and the wire protection board assembled on the stator in the present invention.

[0018] Markings in the figure: 1 - stator core, 2 - insulating frame, 21 - pin column, 3 - power lead, 4 - stator winding, 5 - wire protection board, 51 - protection partition, 6 - sealing insulating glue, 7 - pin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] Refer to Figures 1-3, A hermetically connected aluminum wire stator, comprising: a stator core 1, an insulating frame 2, a stator winding 4, a power lead 3, and a wire protection plate 5; the insulating frame 2 is nested on the stator core 1, and a plurality of pin columns 21 with jacks are provided at intervals at the top of the insulating frame 2. Corresponding pins 7 are inserted into the pin columns 21 (automatic insertion can be performed through a special insertion device). The wire protection plate 5 is clamped on the insulating frame 2 outside the pins 7. A plurality of protection partitions 51 for separating two adjacent pin columns 21 are formed by protruding the inner end surface of the wire protection plate 5. And a plurality of potting spaces are formed by enclosing between the protection partitions 51, the wire protection plate 5, and the insulating frame 2. The head of the stator winding 4 is wound around the pins 7 correspondingly, and the power lead 3 is fixed to the pins 7 and the stator winding 4 by welding. In this way, the stator winding 4 can be connected and conducted with the power lead 5. The solder joints can be isolated from each other and from external components through the spaced partitions 51, ensuring the electrical safety distance of the motor. At the same time, the formed potting spaces facilitate the potting machine to drip the sealing insulating glue 6 at the connection of the stator winding 4 and the power lead 3.

[0021] In one embodiment, the stator winding 4 is wound around the winding end of the insulating frame 2, and the stator winding 4 is made of aluminum enameled wire material as a whole.

[0022] Among them, the head of the stator winding 4 is peeled by a peeling device to prevent the enameled wire from affecting the welding quality and conduction effect between the power lead 3, the pins 7, and the stator winding 4.

[0023] In one embodiment, the connection of the power lead 3, the pins 7, and the stator winding 4 is also coated with a sealing insulating glue 6. The connection of the stator is protected by the sealing insulating glue 6, which not only completely isolates the connection point from the external air, preventing the solder joints from oxidizing, but also strengthens the connection reliability of the connection point, improves the hidden dangers of wire breakage and loosening at the connection, and ensures the product quality.

[0024] Among them, the sealing insulating glue 6 can be automatically dripped by a potting machine to achieve the sealing operation.

[0025] It should be noted that most of the stator (such as the insertion, welding, and potting of the pins 7, etc.) is manufactured by automatic equipment, which greatly reduces the labor intensity and work skill requirements of the staff, and has the advantages of low cost, high production efficiency, and stable quality.

[0026] In one embodiment, both the insulating frame 2 and the wire protection plate 5 are made of nylon material. The nylon material has characteristics such as insulation, high heat resistance, and voltage resistance, and can insulate the stator core 1 arranged in the accommodation space and the stator winding 4 wound around the insulating frame 2.

[0027] Among them, the insulating frame 2 and the wire protection plate 5 can also be made of other insulating, high heat resistance, and voltage resistance materials, which are not limited here.

[0028] An embodiment of the present utility model further provides a motor, which includes an aluminum wire stator connected in a sealed manner as described above, and the motor further includes a rotor (not shown in the figure) rotatably connected to the stator.

[0029] In summary, most of the stator of the motor is manufactured by automatic equipment, which greatly reduces the labor intensity and work skill requirements of the staff, can achieve low cost, high production efficiency and stable quality. Moreover, the connection part of the stator is protected by the sealing insulating glue 6, which not only completely isolates the connection point from the external air, prevents the solder joint from oxidation, but also strengthens the connection reliability of the connection point, improves the hidden dangers of disconnection and loosening at the connection part, ensures the product quality, and has the advantages that the current aluminum wire motors do not have.

[0030] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A sealed aluminum wire stator, characterized in that: include: A stator core, an insulating frame, a stator winding, a power lead and a wire guard plate; the insulating frame is nested on the stator core, a plurality of pin posts with plug holes are arranged at intervals on the top of the insulating frame, pins are correspondingly plugged into the pin posts, the wire guard plate is clamped on the insulating frame outside the pins, a plurality of protective partitions for separating the pin posts in pairs are protruded from the inner end surface of the wire guard plate, and a plurality of glue dripping spaces are formed between the protective partitions, the wire guard plate and the insulating frame.

2. A sealed aluminum wire stator as claimed in claim 1, characterized in that: The stator winding is wound on the winding end of the insulating frame, and the stator winding is made of aluminum enameled wire material as a whole.

3. A sealed aluminum wire stator as claimed in claim 1, characterized in that: The head of the stator winding is correspondingly wound around the plug pin, and the power lead is fixed together with the plug pin and the stator winding by welding.

4. The sealed aluminum wire stator according to claim 1, characterized in that: The stator winding head is peeled by a peeling device.

5. The sealed aluminum wire stator according to claim 1, characterized in that: The connection between the power lead, the plug pin and the stator winding is also coated with sealing insulating glue.

6. The sealed aluminum wire stator according to claim 1, characterized in that: The insulating frame and the wire guard plate are both made of nylon material.

7. A motor, characterized in that: An aluminum wire stator comprising the sealed connection as claimed in any one of claims 1 to 6.

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