CN219203505U - Wiring structure of aluminum enameled wire and copper core lead wire - Google Patents
Wiring structure of aluminum enameled wire and copper core lead wire Download PDFInfo
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- CN219203505U CN219203505U CN202222820820.8U CN202222820820U CN219203505U CN 219203505 U CN219203505 U CN 219203505U CN 202222820820 U CN202222820820 U CN 202222820820U CN 219203505 U CN219203505 U CN 219203505U
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Abstract
The utility model provides a wiring structure of an aluminum enameled wire and a copper core lead, which comprises a tinned copper wire, wherein two ends of the tinned copper wire are respectively connected with the aluminum enameled wire and the copper core lead; the connecting part of the tinned copper wire and the aluminum enameled wire is provided with a first connecting structure, the first connecting structure comprises a first spiral structure and a first tin layer wrapping the first spiral structure, and the first spiral structure is formed by spirally winding an aluminum core of the tinned copper wire and the aluminum enameled wire; the connection part of the tinned copper wire and the copper core lead wire is provided with a second connection structure, the second connection structure comprises a second spiral structure and a second tin layer wrapping the second spiral structure, and the second spiral structure is formed by spirally winding the tinned copper wire and the copper core lead wire; through the technical scheme, the problems that the contact point is aged rapidly, the contact point is even powered off and the operation of a circuit is affected due to the fact that a plurality of defects are caused by improper wiring modes when the aluminum enameled wire and the copper wire are wired are solved.
Description
Technical Field
The utility model relates to an aluminum enameled wire motor, in particular to a wiring structure of an aluminum enameled wire and a copper core lead.
Background
The aluminum enameled wire motor is characterized in that a wound package in the shaded pole motor is an aluminum enameled wire, and when the aluminum enameled wire is used, the aluminum enameled wire is often required to be connected with a lead wire of an external power supply to be electrified, and the lead wire is a copper core outgoing wire in a normal case.
The domestic publication number CN108683303B patent: an improved soldering method and a drainage pump for an aluminum enameled wire of a wiring terminal of a motor coil assembly, which comprise the following steps: (1) Winding aluminum enameled wires on the wiring terminals, and leaving a wire gap between adjacent aluminum enameled wires, wherein the wire gap can be filled with copper enameled wires; (2) Winding copper enameled wires on the outer surface of the aluminum enameled wire wound on the wiring terminal, and filling the copper enameled wires into a wire gap of the adjacent aluminum enameled wire; (3) Immersing the binding post part wrapped by the copper enameled wire into a liquid tin furnace at 400-500 ℃, drawing for 5-10mm after 2-4s, and taking out to form a tin layer shell at the wrapping part of the copper enameled wire; (4) And (3) carrying out plastic packaging on the motor coil assembly, and forming a plastic packaging layer for packaging the tin layer outside the wiring terminal.
This kind of wiring mode can make aluminium line and copper line direct contact, has following drawback: 1. when the power is on, the characteristics of the aluminum copper material and the copper material are different, so that electrochemical reaction is easy to cause; 2. the aluminum wire is subjected to the salinization reaction of the aluminum wire by the damp and hot heat of the external environment and the harmful gas; after the high-current high-voltage electricity enters the aluminum enameled wire, the contact is easy to damage due to potential difference; the defects can cause accelerated aging of the contact points of the aluminum enameled wire and the copper core lead wires, even cause power failure of the contact points, and influence the operation of a circuit.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present utility model is directed to providing a connection structure of an aluminum enameled wire and a copper core lead wire, which is used for solving the problems of the prior art that the connection of the aluminum enameled wire and the copper core lead wire causes numerous drawbacks due to improper connection modes, and finally causes accelerated aging of contact points, even causes power failure of the contact points, and affects operation of a circuit.
To achieve the above and other related objects, the present utility model provides a wire connection structure of an aluminum enameled wire and a copper core wire, which is characterized by comprising
The tinned copper wire, two ends of the tinned copper wire are respectively connected with the aluminum enameled wire and the copper core lead;
the connecting part of the tinned copper wire and the aluminum enameled wire is provided with a first connecting structure, the first connecting structure comprises a first spiral structure and a first tin layer wrapping the first spiral structure, and the first spiral structure is formed by spirally winding an aluminum core of the tinned copper wire and the aluminum enameled wire;
the connection part of the tinned copper wire and the copper core lead wire is provided with a second connection structure, the second connection structure comprises a second spiral structure and a second tin layer wrapping the second spiral structure, and the second spiral structure is formed by spirally winding the tinned copper wire and the copper core lead wire.
According to the technical scheme, the tinned copper wire is used as a bridge medium, and the tin layer is wrapped on the outer layer of the copper wire, so that an aluminum core in the aluminum enameled wire is not directly contacted with copper, but is indirectly contacted with the copper through the tin medium; the copper nickel copper wire is used as an internal connecting piece, the aluminum enameled wire is in contact with tin on the outer layer of the copper wire through spiral winding, galvanic reaction caused by direct contact of aluminum copper or contact damage caused by potential difference are isolated, and the first tin layer on the outermost layer is used for isolating the contact of the aluminum core with the external environment from the outside, so that external water molecules and harmful gases are isolated.
In one embodiment of the utility model, the tinned copper wire includes an inner copper wire and a third tin layer coating the copper wire.
Through the technical scheme, the third tin layer is used as an internal protective tin layer, when the tinned copper wire is surrounded by the aluminum core of the aluminum enameled wire, the aluminum core is contacted with the copper wire through the third tin layer, so that electrifying conduction is completed, and then the tinned copper wire is communicated to the copper core lead wire.
In an embodiment of the utility model, a thickness of the third tin layer is greater than 3 μm.
Through above-mentioned technical scheme, increase the thickness of third tin layer for the aluminum enameled wire must not contact with the copper wire, and then promotes the stability of connection.
In one embodiment of the utility model, the tinned copper wire has a length greater than 50mm.
In an embodiment of the utility model, a gap greater than or equal to the thickness of the first tin layer is provided between the tin-plated copper wire and the aluminum core in the first spiral structure.
Through the technical scheme, the gap is arranged in the first spiral structure, so that the first tin layer on the outermost layer can completely wrap the outer side of the aluminum core.
In an embodiment of the utility model, a gap greater than or equal to the thickness of the second tin layer is provided between the tin-plated copper wire and the copper core in the second spiral structure.
Through the technical scheme, the gap is arranged in the second spiral structure, so that the second tin layer on the outermost layer can completely wrap the outer side of the copper wire.
In an embodiment of the utility model, surfaces of the first connection structure and the second connection structure are provided with protection layers.
In one embodiment of the utility model, the aluminum enameled wire includes an inner aluminum core and an outer insulating enamel.
In an embodiment of the utility model, the length of the first connection structure and the second connection structure is 5-8 mm.
As described above, the wiring structure of the aluminum enameled wire and the copper core lead wire has the following beneficial effects:
the first tin layer and the second tin layer are used as external protection, the third tin layer is used as an internal protection tin layer, when the tinned copper wire is surrounded by the aluminum core of the aluminum enameled wire, the aluminum core is contacted with the copper wire through the third tin layer, the electrifying conduction is completed, and then the tinned copper wire is communicated to the copper core lead.
The tinned copper wire is used as a bridge medium, and the tin layer is wrapped on the outer layer of the copper wire, so that an aluminum core in the aluminum enameled wire is not directly contacted with copper, but is indirectly contacted with the copper through the tin medium; the copper nickel copper wire is used as an internal connecting piece, the aluminum enameled wire is in contact with tin on the outer layer of the copper wire through spiral winding, galvanic reaction caused by direct contact of aluminum copper or contact damage caused by potential difference are isolated, and the first tin layer on the outermost layer is used for isolating the contact of the aluminum core with the external environment from the outside, so that external water molecules and harmful gases are isolated; finally, the effects of avoiding accelerated aging of contact points and prolonging the service life are achieved.
Drawings
Fig. 1 is a schematic diagram showing the overall structure of the connection structure of the aluminum enameled wire and the copper core lead wire disclosed in embodiment 1 of the utility model.
Fig. 2 is a schematic cross-sectional view 2 showing a wiring structure of an aluminum enameled wire and a copper core lead wire disclosed in embodiment 1 of the utility model.
Description of element reference numerals
1. Tinning copper wires; 2. aluminum enameled wire; 3. copper core leads; 4. a first connection structure; 5. a second connection structure; 6. an aluminum core; 7. insulating paint covers; 8. copper wire; 9. a third tin layer; 10. a first helical structure; 11. a first tin layer; 12. a second helical structure; 13. and a second tin layer.
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.
Please refer to fig. 1-2. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are not intended to be critical to the essential characteristics of the utility model, but are intended to fall within the spirit and scope of the utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.
Example 1
Referring to fig. 1, the utility model provides a wiring structure of an aluminum enameled wire 2 and a copper core lead 3, which comprises a tinned copper wire 1, the aluminum enameled wire 2 and the copper core lead 3 respectively connected to two ends of the tinned copper wire 1, wherein the aluminum enameled wire 2 is connected with the tinned copper wire 1 through a first connecting structure 4, and a communication lead is connected with the nickel-plated copper wire through a second connecting structure 5.
The tinned copper wire 1 is used as a bridge medium, and the tin layer is wrapped on the outer layer of the copper wire, so that the aluminum core 6 in the aluminum enameled wire 2 is not directly contacted with copper, but is indirectly contacted through the tin medium, and electrochemical reaction caused by direct contact between the aluminum core 6 and the copper core is avoided.
Referring to figure 2 in conjunction with the drawings,
the aluminum enameled wire 2 includes an inner aluminum core 6 and an outer insulating enamel 7, and the tinned copper wire 8 includes an inner copper wire 8 and a third tin layer 9 covering the copper wire 8.
The first connecting structure 4 comprises a first spiral structure 10 and a first tin layer 11 wrapping the first spiral structure 10, the first spiral structure 10 is formed by spirally winding a tinned copper wire 1 and an aluminum core 6 of an aluminum enameled wire 2, a gap which is larger than or equal to the thickness of the first tin layer 11 is formed between the tinned copper wire 1 and the aluminum core 6, and the gap is filled with the first tin layer 11.
Gaps are provided in the first spiral structure 10 so that the outermost first tin layer 11 can completely wrap the outside of the aluminum core 6.
The second connecting structure 5 comprises a second spiral structure 12 and a second tin layer 13 wrapping the second spiral structure 12, the second spiral structure 12 is formed by spirally winding a tinned copper wire 1 and a copper core lead 3, a gap larger than or equal to the thickness of the second tin layer 13 is formed between the tinned copper wire 1 and the copper core lead 3, and the gap is filled with the second tin layer 13.
Gaps are provided in the second spiral structure 12 so that the second tin layer 13 of the outermost layer can completely wrap the outside of the copper wire.
In summary, the first tin layer 11 and the second tin layer 13 are respectively used as external protection layers at the joint of the copper core lead 3 and the aluminum enameled wire 2, so that the interference of moisture or harmful molecules in the external environment received by the aluminum core 6 and the copper core lead 3 is avoided, the third tin layer 9 is used as an internal protection tin layer, when the tinned copper wire 1 is surrounded with the aluminum core 6 of the aluminum enameled wire 2, the aluminum core 6 is contacted with the copper wire 8 through the third tin layer 9, the electrifying conduction is completed, and then the tinned copper wire 1 is communicated to the copper core lead 3.
Further, the thickness of the third tin layer 9 is more than 3 μm, and the length of the tinned copper wire 1 is more than 50mm.
The thickness of the tin layer is limited, so that the aluminum enameled wire 2 can not contact with the copper wire, and the stability of connection is improved; while limiting the length of the tinned copper wire 1 reduces the resistance in conducting electricity.
Further, the surfaces of the first connecting structure 4 and the second connecting structure 5 are provided with protection layers.
Further, the length of the first connection structure 4 and the second connection structure 5 is 5 to 8mm.
Example 2
The embodiment provides a wiring process of an aluminum enameled wire 2 and a copper core lead 3 in an aluminum enameled wire 2 motor, which comprises the following steps:
s1, tinning the outer layer of a copper wire 8 to obtain a tinned copper wire 8;
s2, removing paint skin from one end of the aluminum enameled wire 2, spirally winding the paint skin removed part and one end of the tinned copper wire 8 to form a first connecting structure 4, and soldering tin on the outer layer of the first connecting structure 4;
s3, carrying out protection treatment on the surface of the first connection structure 4;
and S4, spirally winding the copper core lead wire 3 and the other end of the tinned copper wire 8 to form a second connection structure 5, and soldering tin is arranged on the outer layer of the second connection structure 5.
In addition, the solder in steps S2 and S4 may be replaced by dip solder.
In summary, the tinned copper wire 1 is used as a bridge medium, and the tin layer is wrapped on the outer layer of the copper wire, so that the aluminum core in the aluminum enameled wire 2 is not directly contacted with copper, but is indirectly contacted with the copper through the tin medium; the copper nickel copper wire is used as an internal connecting piece, the aluminum enameled wire 2 is in contact with tin on the outer layer of the copper wire through spiral winding, galvanic reaction caused by direct contact of aluminum copper or contact damage caused by potential difference are isolated, and the first tin layer 11 on the outermost layer is used for isolating the contact of an aluminum core with the external environment from the outside, and isolating external water molecules and harmful gases; finally, the effects of avoiding accelerated aging of contact points and prolonging the service life are achieved. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (9)
1. The utility model provides a wiring structure of aluminum enameled wire and copper core lead wire which characterized in that includes
The tinned copper wire, two ends of the tinned copper wire are respectively connected with the aluminum enameled wire and the copper core lead;
the connecting part of the tinned copper wire and the aluminum enameled wire is provided with a first connecting structure, the first connecting structure comprises a first spiral structure and a first tin layer wrapping the first spiral structure, and the first spiral structure is formed by spirally winding an aluminum core of the tinned copper wire and the aluminum enameled wire;
the connection part of the tinned copper wire and the copper core lead wire is provided with a second connection structure, the second connection structure comprises a second spiral structure and a second tin layer wrapping the second spiral structure, and the second spiral structure is formed by spirally winding the tinned copper wire and the copper core lead wire.
2. The wire connection structure of an aluminum enameled wire and a copper core lead according to claim 1, wherein: the tinned copper wire comprises an internal copper wire and a third tin layer coating the copper wire.
3. The wire connection structure of an aluminum enameled wire and a copper core lead according to claim 2, wherein: the thickness of the third tin layer is greater than 3 μm.
4. The wire connection structure of an aluminum enameled wire and a copper core lead according to claim 1 or 2, wherein: the length of the tinned copper wire is more than 50mm.
5. The wire connection structure of an aluminum enameled wire and a copper core lead according to claim 1, wherein: and a gap larger than or equal to the thickness of the first tin layer is arranged between the tinned copper wire and the aluminum core in the first spiral structure.
6. The wire connection structure of an aluminum enameled wire and a copper core lead according to claim 1, wherein: and a gap larger than or equal to the thickness of the second tin layer is arranged between the tinned copper wire and the copper core in the second spiral structure.
7. The wire connection structure of an aluminum enameled wire and a copper core lead according to claim 1, wherein: and the surfaces of the first connecting structure and the second connecting structure are respectively provided with a protective layer.
8. The wire connection structure of an aluminum enameled wire and a copper core lead according to claim 1, wherein: the aluminum enameled wire comprises an inner aluminum core and an outer insulating enameled skin.
9. The wire connection structure of an aluminum enameled wire and a copper core lead according to claim 1, wherein: the length of the first connecting structure and the second connecting structure is 5-8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222820820.8U CN219203505U (en) | 2022-10-25 | 2022-10-25 | Wiring structure of aluminum enameled wire and copper core lead wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222820820.8U CN219203505U (en) | 2022-10-25 | 2022-10-25 | Wiring structure of aluminum enameled wire and copper core lead wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219203505U true CN219203505U (en) | 2023-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222820820.8U Active CN219203505U (en) | 2022-10-25 | 2022-10-25 | Wiring structure of aluminum enameled wire and copper core lead wire |
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| Country | Link |
|---|---|
| CN (1) | CN219203505U (en) |
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- 2022-10-25 CN CN202222820820.8U patent/CN219203505U/en active Active
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