Anti-sticking aluminum wire convenient to weld
By setting an intermediate layer between the aluminum wire core and the insulation layer, the problem of aluminum wire sticking to the welding head is solved, achieving a high-quality welding effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI HAISONG TECH CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-04-21
AI Technical Summary
In traditional ultrasonic welding, intermetallic compounds can easily form between the aluminum wire and the welding head, leading to adhesion and affecting the welding quality.
An intermediate layer is placed between the aluminum wire core and the insulation layer. The intermediate layer is made of a metal that does not react with the solder head, such as copper, zinc, silver, or gold, to isolate the solder head and the aluminum wire core and prevent the formation of intermetallic compounds.
This effectively prevents the aluminum wire from sticking to the welding head during the welding process, thus improving the welding quality.
Smart Images
Figure CN224153136U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of ultrasonic welding, and more specifically to an anti-stick aluminum wire that is easy to weld. Background Technology
[0002] Ultrasonic welding utilizes high-frequency vibration waves transmitted to the surfaces of two objects to be welded. Under pressure, the surfaces of the two objects rub against each other, forming a fusion between molecular layers.
[0003] In traditional ultrasonic welding, when welding aluminum wire to a terminal, the ultrasonic welding head directly contacts the welding end of the aluminum wire. When the aluminum temperature reaches a certain level, intermetallic compounds (IMCs) form on the surface of the welding end, causing the aluminum wire to adhere to the welding head. When local adhesion occurs between the aluminum wire and the welding head in the welding area, it can further lead to breakage between the adhered and non-adhesive areas. Utility Model Content
[0004] To address the aforementioned issues, this application provides an anti-stick aluminum wire that is easy to weld.
[0005] This application provides an anti-stick aluminum wire that is easy to weld, comprising:
[0006] It includes an aluminum wire core, an insulation layer, and an intermediate layer, wherein the intermediate layer is isolated between the aluminum wire core and the insulation layer, and the intermediate layer is made of a metal that does not react with the welding head of the ultrasonic welding machine to form intermetallic compounds.
[0007] In some embodiments, the welding head is made of steel, and the intermediate layer is made of copper, zinc, silver, or gold.
[0008] In some embodiments, the aluminum wire core has a circular cross-section.
[0009] In some embodiments, at least one ring of insulating wire is filled between the aluminum wire core and the insulation layer, the insulating wire including an intermediate wire, the intermediate wire forming the intermediate layer.
[0010] In some embodiments, an intermediate foil is provided between the aluminum wire core and the insulating layer, the intermediate foil constituting the intermediate layer, and the intermediate foil having a plurality of holes formed therein.
[0011] In some embodiments, an aluminum foil sheet is further separated between the aluminum wire core and the insulation layer, the aluminum foil sheet and the intermediate foil sheet together cover the inner peripheral sidewall of the insulation layer, and the intermediate foil sheet covers at least half of the continuous inner peripheral sidewall of the insulation layer.
[0012] In some embodiments, a mark is provided on the outer peripheral side of the insulating layer, the mark being used to indicate the area where the intermediate layer is located.
[0013] The technical solution of this application has at least the following advantages:
[0014] 1. By setting an intermediate layer between the aluminum wire core and the insulation layer, and the intermediate layer being made of a metal that does not react with the welding head to form intermetallic compounds, after removing the insulation layer at the welding end of the aluminum wire and placing the welding end between the welding head and the terminal, the intermediate layer isolates the welding head and the aluminum wire core, preventing the intermetallic compound layer formed on the surface of the aluminum wire core from adhering to the welding head during the welding process, thereby helping to improve the welding quality. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of an exemplary embodiment of the present application providing a non-stick aluminum wire that is easy to weld;
[0017] Figure 2 This is a cross-sectional view of an anti-stick aluminum wire that is easy to weld, provided in an exemplary embodiment of this application;
[0018] Figure 3 This is a cross-sectional view of another weldable non-stick aluminum wire provided in an exemplary embodiment of this application;
[0019] Figure 4 This is a cross-sectional view of another weldable non-stick aluminum wire provided in an exemplary embodiment of this application;
[0020] Figure 5 This is a schematic diagram illustrating markings on an insulating layer, provided by an exemplary embodiment of this application.
[0021] Explanation of reference numerals in the attached diagram: 1. Aluminum wire core; 2. Insulation layer; 3. Intermediate layer; 31. Intermediate core wire; 32. Intermediate foil; 4. Aluminum foil; 5. Marking. Detailed Implementation
[0022] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0023] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0025] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.
[0026] This application provides an anti-stick aluminum wire that is easy to weld, as shown in the reference. Figure 1 The solderable, non-stick aluminum wire includes an aluminum core 1, an insulation layer 2, and an intermediate layer 3. The intermediate layer 3 is separated between the aluminum core 1 and the insulation layer 2, and the material of the intermediate layer 3 is a metal that does not react with the solder head to form intermetallic compounds. In the embodiments of this application, the solder head is made of steel; therefore, the material of the intermediate layer 3 can be copper, silver, zinc, gold, etc. To save costs, the intermediate layer 3 is generally set to copper.
[0027] Furthermore, refer to Figure 2 The aluminum core 1 can be obtained by twisting together several aluminum core wires, and its cross-section is generally circular.
[0028] Optionally, in some embodiments, reference is made to Figure 2At least one ring of insulating core wire is filled between the aluminum wire core 1 and the insulation layer 2. The insulating core wire includes an intermediate core wire 31, such as a copper core wire, which constitutes the intermediate layer 3 mentioned above.
[0029] Optionally, in other embodiments, the intermediate layer 3 can also be obtained by other structures. (See reference...) Figure 3 An intermediate foil 32, such as a copper foil, is placed between the aluminum wire core 1 and the insulation layer 2. The rectangular intermediate foil 32 is rolled into a ring and fixed to the outer peripheral wall of the aluminum wire core 1. The insulation layer 2 then surrounds the intermediate foil 32, thus forming the intermediate layer 3. The intermediate foil 32 can have several holes evenly distributed within it, thereby saving material.
[0030] Reference Figure 4 An aluminum foil 4 can also be used to separate the aluminum wire core 1 and the insulation layer 2. The aluminum foil 4 and the intermediate foil 32 together cover the inner peripheral sidewall of the insulation layer 2, and the intermediate foil 32 covers at least half of the continuous inner peripheral sidewall of the insulation layer 2. Thus, the annular intermediate foil 32 forms the intermediate layer 3. When welding is required, the part of the aluminum wire in which the intermediate foil 32 is formed faces the welding head.
[0031] For ease of operation, please refer to Figure 5 When the outer wall of the aluminum wire core 1 is not completely covered by the intermediate layer 3, a mark 5, such as silkscreen text, can be provided on the outer peripheral side of the insulation layer 2 to indicate the half of the aluminum wire in which the intermediate layer 3 is located.
[0032] The anti-stick aluminum wire for easy welding provided in this application embodiment has an intermediate layer 3 between the aluminum wire core 1 and the insulation layer 2. The intermediate layer 3 is made of a metal that does not react with the welding head to form intermetallic compounds. After the insulation layer 2 of the welding end of the aluminum wire is removed and the welding end is placed between the welding head and the terminal, the intermediate layer 3 isolates the welding head and the aluminum wire core 1, thus preventing the formation of intermetallic compounds between the aluminum wire core 1 and the welding head during the welding process, which would lead to adhesion to the welding head, thereby helping to improve the welding quality.
[0033] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this application.
Claims
1. An easy-to-weld, non-stick aluminum wire, characterized in that, It includes an aluminum wire core (1), an insulation layer (2) and an intermediate layer (3), wherein the intermediate layer (3) is isolated between the aluminum wire core (1) and the insulation layer (2), and the material of the intermediate layer (3) is a metal that does not react with the welding head to form an intermetallic compound.
2. The tack-free, adhesive-free aluminum wire for easy soldering according to claim 1, wherein, The welding head is made of steel, and the intermediate layer (3) is made of copper, zinc, silver, or gold.
3. The tack-free, adhesive-free aluminum wire for easy soldering according to claim 1, wherein, The aluminum wire core (1) has a circular cross-section.
4. The tack-free, adhesive-free aluminum wire for easy soldering according to claim 3, wherein, At least one ring of insulating wire is filled between the aluminum wire core (1) and the insulation layer (2), the insulating wire including an intermediate wire (31), the intermediate wire (31) forming the intermediate layer (3).
5. The tack-free, adhesive-free aluminum wire for ease of soldering of claim 3, wherein, An intermediate foil (32) is provided between the aluminum wire core (1) and the insulating layer (2), the intermediate foil (32) forming the intermediate layer (3), and a plurality of holes are formed in the intermediate foil (32).
6. The tack-free, adhesive-free aluminum wire for ease of soldering according to claim 5, wherein, An aluminum foil (4) is also separated between the aluminum wire core (1) and the insulation layer (2). The aluminum foil (4) and the intermediate foil (32) together cover the inner peripheral sidewall of the insulation layer (2), and the intermediate foil (32) covers at least half of the continuous inner peripheral sidewall of the insulation layer (2).
7. The tack-free, adhesive-free aluminum wire for easy soldering according to claim 6, characterized in that A mark (5) is provided on the outer peripheral side of the insulating layer (2), the mark (5) being used to indicate the area where the intermediate layer (3) is located.