Direct current aluminum wire motor with novel pin structure
By adopting a new pin structure and automatic equipment welding process in DC aluminum wire motors, the problems of complicated production processes and difficult to guarantee solder quality in the existing technology are solved, and low-cost, high-efficiency and high-quality production results are achieved.
Patent Information
- Application Number
- CN202420276434.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-05
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-02-05
AI Technical Summary
The production process of existing DC aluminum wire motors is cumbersome, the production efficiency is low, and the solder quality is difficult to guarantee, resulting in high production costs.
The DC aluminum wire motor design adopts a new pin structure, and the welding process is completed through automatic equipment, simplifying the production process and improving the degree of automation.
It achieves the effects of low cost, high production efficiency and stable quality, reduces manual operation costs and improves product quality.
Smart Images
Figure CN222674021U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of DC motors for room air conditioner fans, and specifically relates to a DC aluminum wire motor with a novel pin structure. Background Art
[0002] The increasingly fierce market competition has also put forward more stringent requirements for the control of motor production costs. In order to further smoothly develop motors that meet the industry's energy-saving and consumption-reducing requirements, motor manufacturers have to consider from the perspective of motor materials: the iron core has a great impact on performance, so it is not considered. In order to minimize the impact on the motor's performance indicators and reduce cost consumption, the motor winding can only be replaced from copper enameled wire to aluminum enameled wire. Because some chemical and physical properties of the aluminum enameled wire itself determine that the processing of the aluminum enameled wire joint is very critical, if the soldering of the aluminum wire is not done well, it will directly affect the product quality of the aluminum wire motor.
[0003] At present, due to the particularity of the welding process, the production process that has been adopted in the industry for DC aluminum wire motors is to hang the wire end on the pin and pre-press the enameled wire during automatic winding, then use a blade to scrape off the paint film at the wire end, and then use an electric soldering iron to solder and connect, or use a tin furnace to burn off the paint film at the wire end, then manually hang the wire end on the pin and press the enameled wire, and finally use an electric soldering iron to solder and connect.
[0004] The entire production process is complicated and inefficient, and most of the production process is manually operated. At the same time, the quality of solder is difficult to ensure during the manual operation process, and the process scrap rate is high, resulting in a high production cost for the product. Utility Model Content
[0005] The purpose of this application is to provide a DC aluminum wire motor with a new pin structure in order to solve the above-mentioned production efficiency problem.
[0006] The technical solution adopted in this application is as follows: A DC aluminum wire motor with a new pin structure mainly includes a shell, a front cover, a stator assembly, a wire clamp, a rotor assembly and a rear cover.
[0007] By adopting the above technical scheme, a new type of DC aluminum wire motor with a pin structure can be provided through the connection of the shell, the front cover, the stator assembly, the wire clamp, the rotor assembly and the rear cover in the structure, which can achieve the characteristics of low cost, high production efficiency and stable quality, and solve the problems existing in the prior art. The DC aluminum wire motor welding process is completed entirely by automatic equipment, with a high degree of automation and stable product quality.
[0008] In a preferred embodiment, the housing is injection molded with the stator assembly and the front end cover into one piece using BMC material, and a mounting angle connected to the load is injection molded on the circumference of the housing.
[0009] By adopting the above technical solution, the stator assembly and the front end cover are connected and fixed together through the equipment, which is convenient for the normal operation of the equipment, and the installation angle facilitates the connection of the equipment structure.
[0010] In a preferred embodiment, the stator assembly includes a stator core, an injection-molded frame, pins, a pin fixing plate and an enameled wire winding.
[0011] By adopting the above technical solution, the injection molding frame directly casts the insulating material on the stator core through a mold. The insulating material can be a highly heat-resistant and pressure-resistant material such as nylon, which plays an insulating role between the stator core set in the accommodating space and the enameled wire wound on the injection molding frame. The pins are inserted into the injection molding frame at one time through the equipment, and then the enameled wire winding is wound on the wire slot of the stator core. The wire head and wire tail are fixed on the pins, and then the enameled wire winding and the pins are welded together through the equipment, so that the enameled wire winding and the pins are connected and conductive, and the wound components are formed into a circle and welded at one time through the equipment. Finally, the pin fixing plate is installed on the position of the stator pins that have been welded into a circle. In this way, the overall structure of the stator assembly is simple, and most of the processes can be assembled by automatic equipment, eliminating multiple manual assembly processes and reducing labor costs.
[0012] In a preferred embodiment, the plug pin comprises a plug pin portion and a connecting portion, and a welding portion for welding the enameled wire winding is provided between the plug pin portion and the connecting portion.
[0013] By adopting the above technical solution, the welding part is connected with the pin part and the connecting part, and is bent at 90 degrees. A crimping plate and a welding platform extending from a circle with a radius of R are provided on the welding part. The crimping plate is U-shaped. After the enameled wire winding is wound, it is placed in the U-shaped groove formed by the welding part and the crimping plate through automatic equipment, and the crimping plate fixes the enameled wire winding, so as to facilitate the welding and conduction of the enameled wire winding and the pin in the subsequent process.
[0014] In a preferred embodiment, the welding platform of the welding part is more protruding than the crimping plate, which ensures that the welding platform can fully support the enameled wire winding, and there is no overhead enameled wire. At the same time, it ensures that the solder wire will not drip onto the injection molding frame below during soldering, and avoids the hidden dangers of welding leakage and cold welding.
[0015] In a preferred embodiment, the rotor assembly is rotatably connected in the motor housing, and the rotor assembly also includes a rotor shaft, a plastic-coated rotor and a bearing.
[0016] By adopting the above technical solution, the rotor assembly is rotated in the equipment to ensure the normal operation of the equipment. During operation, the rotor shaft, plastic-coated rotor and bearings are provided to ensure the operation of the equipment.
[0017] In a preferred embodiment, the number of bearings is two, and the two bearings are fixedly installed at the center of the front cover and the rear cover respectively. The rotor shaft is rotatably connected to the inside of the two bearings, and the plastic-coated rotor is fixedly installed on the outer wall of the middle part of the rotor shaft, and the plastic-coated rotor is located in the center of the stator assembly.
[0018] By adopting the above technical solution, front and rear bearing installation is provided, which is convenient for ensuring the normal connection and use of the internal structure of the equipment. The two bearings are connected through the rotor shaft and the connection of the plastic-coated rotor is ensured to ensure the correct connection of the structure.
[0019] In a preferred embodiment, in the welding process, a laser paint removal device, a paint removal length detection device and a soldering device are sequentially arranged along the conveying direction of the conveyor line.
[0020] By adopting the above technical scheme, when the enameled wire winding is wound, the wire end is fixed on the welding part of the pin, and the enameled wire is laser depainted by a laser depainting device. After the paint is removed, the depainting length of the enameled wire is detected by a depainting length detection device. The depainting length detection device uses visual inspection equipment for detection. When the depainting length is unqualified, the visual inspection equipment alarms and shuts down. If it is qualified, it enters the next process, and the enameled wire and the pin are welded and fixed by a soldering device to ensure that the solder is in contact with the depainted part of the enameled wire; the soldering device uses a laser heating device to heat the tin wire, and uses a laser instead of an electric soldering iron to heat the tin wire to weld the enameled wire and the pin together. The laser heating energy is stable, which greatly reduces the problems of cold soldering and false soldering.
[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:
[0022] In the present application, a DC aluminum wire motor with a new pin structure can be provided by connecting the shell, front cover, stator assembly, wire clamp, rotor assembly and rear cover in the equipment structure, which can achieve the characteristics of low cost, high production efficiency and stable quality, and solve the problems existing in the prior art. The DC aluminum wire motor welding process is completed entirely by automatic equipment, with a high degree of automation and stable product quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a schematic diagram of the structural explosion diagram of this application;
[0024] Figure 2 A schematic diagram of a stator assembly in this application;
[0025] Figure 3 This is an enlarged schematic diagram after welding in this application;
[0026] Figure 4 This is a schematic diagram of the pins used in this application;
[0027] Figure 5Schematic diagram of the welding process in this application.
[0028] Markings in the figure: 1. Shell; 11. Installation angle; 2. Front cover; 3. Stator assembly; 31. Stator core; 32. Injection molding frame; 33. Pin; 331. Pin part; 332. Connecting part; 333. Welding part; 3331. Crimping plate; 3332. Welding platform; 34. Pin fixing plate; 35. Enameled wire winding; 4. Wire clamp; 5. Rotor assembly; 51. Rotor shaft; 52. Plastic-coated rotor; 53. Bearing; 6. Rear cover; 71. Paint removal device; 72. Detection device; 73. Soldering device. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0030] Reference Figure 1-5 ,
[0031] Example:
[0032] Reference Figure 1-4 A novel DC aluminum wire motor with a pin structure mainly includes a shell 1, a front cover 2, a stator assembly 3, a wire clamp 4, a rotor assembly 5 and a rear cover 6. Through the connection of the shell 1, the front cover 2, the stator assembly 3, the wire clamp 4, the rotor assembly 5 and the rear cover 6 in the equipment structure, a novel DC aluminum wire motor with a pin structure can be provided, which can achieve the characteristics of low cost, high production efficiency and stable quality, and solve the problems existing in the prior art. The DC aluminum wire motor welding process is completed entirely by automatic equipment, with a high degree of automation and stable product quality.
[0033] Reference Figure 1-4 The housing 1 is injection molded with the stator assembly 3 and the front cover 2 into one piece by BMC material. A mounting angle 11 connected to the load is injection molded on the circumference of the housing. By connecting and fixing the stator assembly 3 and the front cover 2 in the equipment together, the normal operation of the equipment is facilitated, and the mounting angle 11 facilitates the connection of the equipment structure.
[0034] Reference Figure 1-4The stator assembly 3 includes a stator core 31, an injection molding frame 32, a plug pin 33, a plug pin fixing plate 34 and an enameled wire winding 35. The injection molding frame 32 is formed by directly casting the insulating material on the stator core 31 through a mold. The insulating material can be a high heat-resistant and pressure-resistant material such as nylon, which plays an insulating role between the stator core arranged in the accommodation space and the enameled wire wound on the injection molding frame. The plug pin 33 is inserted into the injection molding frame 32 at one time through the equipment, and then the enameled wire winding 35 is wound on the wire slot of the stator core 31, and the wire head and wire tail are fixed on the plug pin 33. Then, the enameled wire winding 35 and the plug pin 33 are welded together through the equipment, so that the enameled wire winding 35 and the plug pin 33 are connected and turned on, and the wound components are rounded and welded at one time through the equipment. Finally, the pin fixing plate 34 is installed on the position of the circularly welded stator pins, so that the overall structure of the stator assembly 3 is simple, and most of the processes can be assembled by automatic equipment, eliminating multiple manual assembly processes and reducing labor costs.
[0035] Reference Figure 1-4 The pin 33 includes a pin portion 331 and a connecting portion 332. A welding portion 333 for welding the enameled wire winding 35 is provided between the pin portion 331 and the connecting portion 332. The welding portion 333 is connected to the pin portion 331 and the connecting portion 332 and is bent at 90 degrees. A crimping plate 3331 and a welding platform 3332 extending from a circle with a radius of R are provided on the welding portion 333. The crimping plate 3331 is U-shaped. After the enameled wire winding 35 is wound, it is placed in the U-shaped groove formed by the welding portion 333 and the crimping plate 3331 through an automatic device, and the crimping plate 3331 fixes the enameled wire winding 35, so as to facilitate the subsequent process of welding and conducting the enameled wire winding 35 with the pin 33.
[0036] Reference Figure 1-4 The welding platform 3332 of the welding part 333 is more protruding than the crimping plate 3331, which ensures that the welding platform 3332 can fully support the enameled wire winding 35, and there is no overhead enameled wire. At the same time, it ensures that the solder wire will not drip onto the injection molding frame 32 below during soldering, and avoids the hidden dangers of welding leakage and cold welding.
[0037] Reference Figure 1-4 The rotor assembly 5 is rotatably connected to the motor housing. The rotor assembly 5 also includes a rotor shaft 51, a plastic-coated rotor 52 and a bearing 53. By rotating the rotor assembly 5 in the equipment, the normal operation of the equipment is ensured. During operation, the rotor shaft 51, the plastic-coated rotor 52 and the bearing 53 are provided to ensure the operation of the equipment.
[0038] Reference Figure 1-4There are two bearings 53, which are fixedly mounted at the center of the front cover 2 and the rear cover 6 respectively. The rotor shaft 51 is rotatably connected to the inside of the two bearings 53. The plastic-coated rotor 52 is fixedly mounted on the outer wall of the middle part of the rotor shaft 51. The plastic-coated rotor 52 is located at the center of the stator assembly 3, providing front and rear bearing 53 installations to facilitate the normal connection and use of the internal structure of the equipment. The two bearings 53 are connected through the rotor shaft 51, and the connection of the plastic-coated rotor 52 ensures the correct connection of the structure.
[0039] Reference Figure 5 In the welding process, a laser paint removal device 71, a paint removal length detection device 72 and a soldering device 73 are sequentially arranged along the conveying direction of the conveyor line. When the enameled wire winding is wound, the wire head is fixed on the welding portion 333 of the pin 33, and the enameled wire is laser-depainted by the laser paint removal device 71. After the paint is removed, the paint removal length of the enameled wire is detected by the paint removal length detection device 72. The paint removal length detection device 72 is detected by a visual inspection device. When the paint removal length is unqualified, the visual inspection device alarms and shuts down. If it is qualified, it enters the next process, and the enameled wire is welded and fixed to the pin 33 by the soldering device 73 to ensure that the solder is in contact with the paint-removed part of the enameled wire; the soldering device 73 uses a laser heating device to heat the tin wire, and uses a laser instead of an electric soldering iron to heat the tin wire to weld the enameled wire and the pin together. The laser heating energy is stable, which greatly reduces the problems of cold soldering and false soldering.
[0040] The implementation principle of the DC aluminum wire motor embodiment of the present application with a novel pin structure is as follows:
[0041] By connecting the shell 1, the front cover 2, the stator assembly 3, the wire clamp 4, the rotor assembly 5 and the rear cover 6 in the equipment structure, a new type of DC aluminum wire motor with a pin structure can be provided, which can achieve the characteristics of low cost, high production efficiency and stable quality, and solve the problems existing in the prior art. The DC aluminum wire motor welding process is all completed by automatic equipment, with a high degree of automation and stable product quality. The use of the DC aluminum wire motor is conducive to solving the problems of the current production process of DC aluminum wire motors in the industry due to the particularity of their welding process.
[0042] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A new type of DC aluminum wire motor with a pin structure, characterized by: The invention mainly comprises a housing (1), a front end cover (2), a stator assembly (3), a wire clamp (4), a rotor assembly (5) and a rear end cover (6); the housing (1) is formed by injection molding the stator assembly (3) and the front end cover (2) into one piece using BMC material; a mounting angle (11) connected to a load is injection molded on the circumference of the housing; the stator assembly (3) comprises a stator core (31), an injection molding frame (32), a plug pin (33), a plug pin fixing plate (34) and an enameled wire winding (35); the plug pin (33) comprises a plug pin portion (331) and a connecting portion (332); a welding portion (333) for welding the enameled wire winding (35) is provided between the plug pin portion (331) and the connecting portion (332); the welding portion (333) further comprises a crimping plate (3331) ) and a welding platform (3332), the welding platform (3332) protruding from the crimping plate (3331), the rotor assembly (5) being rotatably connected to the motor housing, the rotor assembly (5) further comprising a rotor shaft (51), a plastic-coated rotor (52) and a bearing (53), the bearing (53) being two in number, the two bearings (53) being respectively fixedly mounted at the center of the front end cover (2) and the rear end cover (6), the rotor shaft (51) being rotatably connected to the inside of the two bearings (53), the plastic-coated rotor (52) being fixedly mounted at the middle outer wall of the rotor shaft (51), the plastic-coated rotor (52) being located at the center of the stator assembly (3), the welding process being characterized in that a laser paint removal device (71), a paint removal length detection device (72) and a soldering device (73) are sequentially arranged along the conveying direction of the conveying line.