CN223502650U - A stator solder joint protection structure and its motor - Google Patents
A stator solder joint protection structure and its motorInfo
- Publication number
- CN223502650U CN223502650U CN202422990667.2U CN202422990667U CN223502650U CN 223502650 U CN223502650 U CN 223502650U CN 202422990667 U CN202422990667 U CN 202422990667U CN 223502650 U CN223502650 U CN 223502650U
- Authority
- CN
- China
- Prior art keywords
- stator
- protection structure
- cover
- insulating frame
- pcb board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Manufacture Of Motors, Generators (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a stator welding spot protection structure and a motor thereof, comprising a stator iron core, an insulating frame, a PCB (printed circuit board), a protecting cover and a stator winding which is wound on the insulating frame, wherein a plurality of pin posts with jacks are arranged in the insulating frame at intervals, pins are correspondingly inserted on the jacks, the PCB is lapped on the upper surface of the pin posts, through holes which can be penetrated by the pins are formed, the stator winding, the pins and the PCB are welded to form a conducting welding spot, the protecting cover is covered outside the PCB, the protecting cover is provided with a containing cavity with an opening at the bottom, sealing insulating glue which can cover the conducting welding spot is filled in the containing cavity, and a plurality of glue injecting notches which are communicated with the containing cavity are distributed on the side surface of the insulating frame at intervals. The welding spot protection structure designed by the utility model is mostly manufactured by automatic equipment, so that the labor intensity and the working skill requirements of workers are greatly reduced, and the welding spot protection structure has the advantages of low cost, high production efficiency and stable quality.
Description
Technical Field
The utility model belongs to the technical field of motors for household appliances such as electric fans, smoke exhaust ventilators, air purifiers, bathroom heaters and the like, and particularly relates to a stator welding spot protection structure and a motor thereof.
Background
Along with the great rise of the price of copper materials, the cost pressure of the motor industry is gradually increased, and in order to meet the requirements of further smooth research and development of the motor with energy conservation and consumption reduction in the industry, each motor factory has to consider from the perspective of motor materials. The iron core has great influence on performance, the performance index of the motor is not influenced as much as possible, the cost consumption is reduced, and only the winding of the motor can be replaced by the copper enameled wire or the copper-clad aluminum enameled wire. Because some chemical and physical properties of aluminum in the aluminum enameled wire or the copper-clad aluminum enameled wire itself determine that the aluminum enameled wire or the copper-clad aluminum enameled wire is very critical to process in terms of welding, the product quality of the motor is directly affected if the welding is not good.
The aluminum wire or copper-clad aluminum wire motor for household appliances such as the existing electric fan, smoke exhaust ventilator, air purifier, bathroom heater and the like is generally a distributed winding of a conventional iron shell structure, a stator wiring mode is that an enamelled round wire is wound on a contact pin, the enamelled round wire is connected in a tin (soldering tin) lining mode, then a welding spot is sealed and protected by a heat-shrinkable tube independently, the whole production process is complex in procedure and low in production efficiency, and the production process is fully operated by manual operation, so that the requirement on labor intensity and working skill of workers is high, meanwhile, the rejection rate of the manual operation process is large, and the production cost of the product is high. Meanwhile, the quality of welding spots at the connecting joint of the aluminum enameled wire or the copper enameled wire is difficult to ensure, so that defects such as easy oxidation, wire breakage and the like occur at the connecting point, and the defects of no power supply, short service life and the like are caused.
Disclosure of utility model
The utility model aims to solve the problems and provide a stator welding spot protection structure and a motor thereof.
The technical scheme adopted by the utility model is as follows:
According to the first aspect of the utility model, the stator welding spot protection structure comprises a stator iron core, an insulating frame, a PCB (printed circuit board), a protecting cover and a stator winding which is wound on the insulating frame, wherein a plurality of pin columns with insertion holes are arranged in the insulating frame at intervals, pins are correspondingly inserted in the insertion holes, the PCB is lapped on the upper surface of the pin columns, through holes which can be used for enabling the pins to pass through are formed, the stator winding, the pins and the PCB are welded to form a conducting welding spot, the protecting cover is covered outside the PCB, the protecting cover is provided with an accommodating cavity with an opening at the bottom, and sealing insulating glue which can cover the conducting welding spot is filled in the accommodating cavity.
In a preferred embodiment, a plurality of glue injection notches communicated with the accommodating cavity are distributed on the side surface of the insulating frame at intervals, and the glue injection notches are positioned below the protecting cover.
In a preferred embodiment, a plurality of limiting bosses are formed by inwards protruding the side wall of the protecting cover, and the PCB is provided with a notch which meets the clamping connection with the limiting bosses.
In a preferred embodiment, the inner walls of the two sides of the protecting cover are provided with a plurality of reverse buckles which are clamped on the back surface of the PCB, and the back surface of the protecting cover protrudes downwards to form a supporting column which is abutted on the front surface of the PCB.
In a preferred embodiment, the insulating frame is nested on the stator core, and the insulating frame is made of a material having insulating, voltage-resistant and heat-resistant properties.
In a preferred embodiment, the protective cover is made of a material having transparent, insulating, pressure-resistant and heat-resistant properties.
In a preferred embodiment, the PCB board is provided with a plurality of positioning holes along a length direction thereof, and the pin post is integrally provided with a positioning post capable of penetrating the positioning holes.
In a second aspect of the utility model, an electric machine comprises a stator weld protection structure as described above.
In summary, due to the adoption of the technical scheme, the stator welding spot protection structure has the beneficial effects that most of the stator welding spot protection structure is manufactured by automatic equipment, so that the labor intensity and the working skill requirements of workers are greatly reduced, the cost is low, the production efficiency is high, the quality is stable, the stator welding spot is completely wrapped in the protecting cover through the sealing insulating glue, the welding spot is completely isolated from the outside air, the welding spot is prevented from being oxidized, the connection reliability of the welding spot is enhanced, the hidden troubles of broken lines, loose and the like at the connection position are improved, and the product quality is ensured.
Drawings
FIG. 1 is a schematic view of the overall exploded perspective of the present utility model;
FIG. 2 is a schematic diagram of the overall three-dimensional structure of the present utility model;
FIG. 3 is a schematic illustration of an exploded perspective view of the overall utility model from another perspective;
fig. 4 is a schematic perspective view of the protective cover of the present utility model.
The drawing shows a 1-stator core, a 2-insulating frame, a 21-pin column, a 211-positioning column, a 22-glue injection notch, a 3-pin, a 4-stator winding, a 5-PCB (printed circuit board), a 51-notch, a 6-protecting cover, a 61-limiting boss, a 62-supporting column, a 63-back buckle, 7-sealing insulating glue and an 8-conducting welding spot.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1 to 4, a stator welding spot protection structure comprises a stator core 1, an insulating frame 2, a PCB board 5, a protecting cover 6 and a stator winding 4 wound on the insulating frame 2, wherein a plurality of pin posts 21 with insertion holes are arranged in the insulating frame 2 at intervals, the insertion holes are correspondingly inserted with the pins 3, the PCB board 5 is lapped on the upper surfaces of the pin posts 21 and provided with through holes for allowing the pins 3 to pass through, the stator winding 4, the pins 3 and the PCB board 5 are welded to form a conducting welding spot 8, the protecting cover 6 is covered outside the PCB board 5, the protecting cover 6 is provided with a containing cavity with an opening at the bottom, sealing insulating glue 7 capable of covering the conducting welding spot 8 is filled in the containing cavity, the stator winding 4 is wound on the insulating frame 2 with the pins 3, the heads of the stator winding 4 are fixed on the pins 3, then the paint skin wound on the surfaces of the stator winding 4 on the pins 3 is removed through equipment, and put the PCB board 5 that welds the power cord lead wire on the contact pin post 21, weld the three together through welding equipment, thereby realize that stator winding 4 is connected with the electricity of external component, install protecting cover 6 on the PCB board 5 that the welding is accomplished, overturn the stator through tipping arrangement, and pour into sealed insulating glue 7 into the holding chamber through the injecting glue machine, make sealed insulating glue 7 cover completely and switch on solder joint 8 position, and make it solidify in protecting cover 6 the inside completely, so not only make the tie point completely keep apart with outside air, the tie reliability of tie point has been strengthened simultaneously, improve the junction hidden danger such as broken wire, loose take off, ensure product quality, secondly most accomplish the preparation by automatic equipment, greatly reduced staff intensity of labour and working skill requirement, low cost can be accomplished, high production efficiency, stable quality.
Wherein, the stator winding 4 is formed by coiling aluminum enameled wire or copper-clad aluminum enameled wire.
It should be noted that the above mentioned welding equipment, glue injection equipment, turning equipment, etc. are all already realized and known technologies, and are not specifically described herein.
In an embodiment, a plurality of glue injection notches 22 communicated with the accommodating cavity are distributed on the side surface of the insulating frame 2 at intervals, the glue injection notches 22 are located below the protecting cover 6, and the glue injection machine can inject the sealing insulating glue 7 into the accommodating cavity from the plurality of glue injection notches 22 on the insulating frame 2, and due to the fact that a certain distance is reserved between the glue injection notches 22, uniformity of filling the sealing insulating glue 7 can be guaranteed.
Referring to fig. 4, a plurality of limiting bosses 61 are formed on the side wall of the protecting cover 6 in an inward protruding manner, a notch 51 meeting the clamping connection with the limiting bosses 61 is formed on the PCB board 5, when the protecting cover is assembled, the limiting bosses 61 of the protecting cover 6 are clamped on the notch 51 of the PCB board 5, the protecting cover 6 can be prevented from rotating circumferentially, the auxiliary positioning effect is achieved on the protecting cover 6, and the number of the limiting bosses 61 is at least one, and the specific number is not limited.
In an embodiment, a plurality of inversions 63 are provided on the inner walls of two sides of the protecting cover 6 and are clamped on the back of the PCB 5, the back of the protecting cover 6 protrudes downwards to form support columns 62 abutting against the front of the PCB 5, the support columns 62 support the front of the PCB 5, the inversions 63 are buckled on the back of the PCB 5, the protecting cover 6 is ensured to be stably fixed on the PCB 5, the number of inversions 63 is preferably 4, the number of support columns 62 is preferably 2, but the invention is not limited thereto.
In one embodiment, the insulating frame 2 is nested on the stator core 1, the insulating frame 2 is made of a material with insulating, voltage-resistant and heat-resistant properties, so that the insulating frame 2 can play an insulating role on the stator winding 4 wound on the insulating frame 2, and the insulating frame 2 is preferably made of a nylon material, or can be made of other materials with insulating, voltage-resistant and heat-resistant properties.
In one embodiment, the protecting cover 6 is made of a material with transparent, insulating, pressure-resistant and heat-resistant properties, and the protecting cover 6 is preferably made of a transparent nylon material, so that the filling condition and solidification condition of the sealing insulating glue 7 in the protecting cover 6 can be monitored conveniently, and the connection point is completely isolated from the outside air.
In an embodiment, the PCB 5 is provided with a plurality of positioning holes along the length direction thereof, the pin column 21 is integrally provided with a positioning column 211 capable of penetrating the positioning holes, and the PCB 5 can be stably fixed on the pin column 21 through the cooperation of the positioning holes and the positioning column 211.
The embodiment of the utility model also provides a motor which comprises a rotor (not shown in the figure) and the stator welding spot protection structure.
In conclusion, the above stator welding spot protection structure is mostly manufactured by automatic equipment, so that the labor intensity and the working skill requirements of workers are greatly reduced, the cost is low, the production efficiency is high, the quality is stable, the stator welding spots are completely covered in the protecting cover 6 through the sealing insulating glue 7, the welding spots are completely isolated from the outside air, the welding spots are prevented from being oxidized, the connection reliability of the welding spots is enhanced, and the product quality is ensured.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422990667.2U CN223502650U (en) | 2024-12-05 | 2024-12-05 | A stator solder joint protection structure and its motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422990667.2U CN223502650U (en) | 2024-12-05 | 2024-12-05 | A stator solder joint protection structure and its motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223502650U true CN223502650U (en) | 2025-10-31 |
Family
ID=97483947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422990667.2U Active CN223502650U (en) | 2024-12-05 | 2024-12-05 | A stator solder joint protection structure and its motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223502650U (en) |
-
2024
- 2024-12-05 CN CN202422990667.2U patent/CN223502650U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |