Copper-clad aluminum wire voice coil

Abstract

The utility model discloses a copper-clad aluminum wire voice coil, which comprises a voice coil framework, a copper-clad aluminum coil, reinforcing paper, a pure copper wire and a lead, the copper-clad aluminum coil is further provided with a lead-out wire, the lead-out wire is one end of the copper-clad aluminum coil, the pure copper wire comprises a first connecting end and a second connecting end, the first connecting end of the pure copper wire is connected with the lead-out wire of the copper-clad aluminum coil, and the second connecting end of the pure copper wire is connected with the lead-out wire of the copper-clad aluminum coil. The second connecting end of the pure copper wire is connected with the wire, and the copper-clad aluminum coil and the reinforcing paper are arranged on the voice coil framework. According to the copper-clad aluminum wire voice coil provided by the utility model, the pure copper wire with better ductility and higher strength is welded in front of the copper-clad aluminum coil and the wire, the welding point is formed at the welding part of the pure copper wire and the wire, and the welding point is covered and fixed by the reinforcing paper, so that the bending times of the copper-clad aluminum wire are reduced, the risk of wire breakage is reduced, the badness is reduced, and the production efficiency is improved. The service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of speaker voice coils, in particular to a copper-clad aluminum wire voice coil. Background Art

[0002] In order to improve the response efficiency of mid- and high-frequency, many existing speaker units often use copper-clad aluminum wire voice coils. This is mainly due to the lightweight characteristics of copper-clad aluminum wire. Compared with pure copper wire of the same diameter, its weight is about 30% lighter. The reduction of the vibration mass of the speaker can improve the electroacoustic conversion efficiency; but the disadvantages of copper-clad aluminum wire are low mechanical strength and easy breakage. The joints after welding are prone to cracking. When the speaker is working, the voice coil jumps up and down and repeatedly bends the lead. It is easy to break the copper-clad aluminum wire, resulting in silence, shortening the life of the speaker, and causing serious defects. Utility Model Content

[0003] The utility model solves the problem that the existing voice coil directly uses copper-clad aluminum as the conductor, but the copper-clad aluminum wire is easy to break due to its low mechanical strength, which often leads to silence and shortens the service life of the speaker.

[0004] In order to solve the above technical problems, a copper clad aluminum wire voice coil includes a voice coil frame, a copper clad aluminum coil, reinforcement paper, pure copper wire and a conducting wire. The copper clad aluminum coil is also provided with a lead wire, which is one end of the copper clad aluminum coil. The pure copper wire includes a first connecting end and a second connecting end. The first connecting end of the pure copper wire is connected to the lead wire, and the second connecting end of the pure copper wire is connected to the conducting wire. The copper clad aluminum coil and the reinforcement paper are fixedly arranged on the voice coil frame.

[0005] Preferably, the voice coil frame is in a hollow cylindrical shape, the lead wire and the copper-clad aluminum coil are integrally formed, and the copper-clad aluminum coil is wound around the voice coil frame.

[0006] Preferably, the pure copper wire is connected to the copper-clad aluminum coil and the conductor by welding.

[0007] Preferably, a welding point is formed at the welding point between the second connecting end of the pure copper wire and the conducting wire.

[0008] Preferably, two pure copper wires and two conductive wires are provided respectively, and the two pure copper wires and the conductive wire are arranged at intervals.

[0009] Preferably, the reinforcing paper is wound around the voice coil frame by adhesion.

[0010] The utility model has the following beneficial effects: the utility model comprises a voice coil frame, a copper-clad aluminum coil wound on the voice coil frame, a pure copper wire welded to the copper-clad aluminum lead wire, and reinforcing paper used to wrap the frame and cover the welding point. The lead end of the copper-clad aluminum voice coil is welded to the pure copper first connecting section, the second connecting section of the pure copper wire is welded to the conductor to form a welding point, and the welding point is covered with reinforcing paper. Since the pure copper wire with better ductility is welded between the copper-clad aluminum coil and the conductor, the number of bending times of the copper-clad aluminum wire is reduced, thereby reducing the risk of wire breakage, reducing defects, and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following is a brief introduction to the drawings required for use in the embodiments.

[0012] Figure 1 This is a schematic diagram of the structure of the utility model

[0013] Figure 2 This is a partial enlarged schematic diagram of the utility model

[0014] Description of reference numerals: voice coil frame 1, copper-clad aluminum coil 2, lead wire 21, pure copper wire 3, first connection end 31 of pure copper wire, second connection end 32 of pure copper wire, reinforcing paper 4, conductor 5, welding point 6 DETAILED DESCRIPTION

[0015] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0016] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the invention described herein can be implemented in an order other than those illustrated or described herein.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] In the description of this specification, the description with reference to the terms "embodiment", "one embodiment" and "one implementation" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or implementation are included in at least one embodiment or implementation of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or implementation. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or implementations in a suitable manner.

[0019] like Figure 1-2 As shown, the utility model provides a copper-clad aluminum wire voice coil, including a voice coil frame 1, a copper-clad aluminum coil 2, a pure copper wire 3, a reinforcing paper 4, a conductor 5 and a welding point 6. A copper-clad aluminum lead-out wire 21 is also provided on the copper-clad aluminum coil 2, and the lead-out wire 21 is one end of the copper-clad aluminum coil 2. Two copper-clad aluminum lead-out wires 21 are provided, and the copper-clad aluminum lead-out wire 21 and the copper-clad aluminum coil 2 are an integrally formed structure. Two pure copper wires 3 and two conductors 5 are also provided respectively, and the pure copper wire 3 connects the copper-clad aluminum lead-out wire 21 and the conductor 5 on the copper-clad aluminum coil 2. One end of the pure copper wire 3 connected to the copper-clad aluminum lead-out wire 21 is a pure copper wire first connection end 31, and one end of the pure copper wire 3 connected to the conductor is a second connection end 32. The pure copper wire 3 is connected to the copper-clad aluminum coil lead-out wire 21 and the conductor 5 by welding.

[0020] Furthermore, the voice coil frame 1 is a hollow cylindrical shape, the copper clad aluminum coil 2 is connected to the voice coil frame 2 by winding, the copper clad aluminum coil lead wire 21 is attached to the voice coil frame 1, and the copper clad aluminum coil 2 can be wound with different turns on the voice coil frame 1 according to actual needs. Due to the copper clad aluminum wire voice coil provided by the utility model patent, the copper clad aluminum coil 2 is not directly connected to the wire 5, but a pure copper wire 3 with better ductility is welded between the copper clad aluminum coil 2 and the wire, thereby reducing the risk of wire breakage, reducing defects, and extending life.

[0021] Furthermore, the second connection end 32 of the pure copper wire is welded to the wire 5 to form a welding point 6, and the welding point 6 further strengthens the connection strength between the pure copper wire 3 and the wire 5, reducing the risk of wire breakage. A reinforcing paper 4 is also provided on the voice coil frame 1, and the reinforcing paper 4 is wrapped around the voice coil frame 1 by glue, covering and wrapping the welding point 6, the lead wire 21, the pure copper wire 3 and the wire 6, and the reinforcing paper 4 is in contact with the main body of the copper clad aluminum coil 3. Since the reinforcing paper 4 covers the welding point 6, the number of bending times of the copper clad aluminum wire is reduced during operation, thereby reducing the risk of wire breakage of the voice coil, reducing defects, and extending the service life.

[0022] In a traditional voice coil, the copper-clad aluminum coil 2 is directly connected to the wire 5. Although the copper-clad aluminum wire has the characteristics of light weight, it has low mechanical strength and is easy to break after long-term use. In comparison, the utility model provides a copper-clad aluminum wire voice coil, in which a pure copper wire 3 with better ductility and higher strength is directly welded between the copper-clad aluminum coil 2 and the wire 5, thereby increasing the overall strength. A welding point 6 is formed at the welding point between the pure copper wire 3 and the wire 5 to further enhance its strength. The reinforcing paper 4 covers the welding point 6, thereby reducing the number of bending times of the copper-clad aluminum wire, thereby reducing the risk of wire breakage, reducing defects, and extending the service life of the voice coil.

[0023] Although the utility model is disclosed as above, the protection scope of the utility model is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A copper-clad aluminum wire voice coil, comprising a voice coil frame, a copper-clad aluminum coil, reinforcing paper, a pure copper wire and a conductor, characterized in that: The copper clad aluminum coil is also provided with a lead wire, which is one end of the copper clad aluminum coil. The pure copper wire includes a first connection end and a second connection end. The first connection end of the pure copper wire is connected to the lead wire, and the second connection end of the pure copper wire is connected to the conductor. The copper clad aluminum coil and the reinforcement paper are fixedly arranged on the voice coil frame.

2. The copper-clad aluminum wire voice coil according to claim 1, characterized in that: The voice coil frame is in the shape of a hollow cylinder. The lead wire and the copper-clad aluminum coil are integrally formed, and the copper-clad aluminum coil is wound around the voice coil frame.

3. The copper-clad aluminum wire voice coil according to claim 1, characterized in that: The pure copper wire is connected to the lead wire and the conductor by welding.

4. The copper-clad aluminum wire voice coil according to claim 3, characterized in that: A welding point is formed at the welding point of the second connection end of the pure copper wire and the conducting wire.

5. The copper-clad aluminum wire voice coil according to claim 3, characterized in that: Two pure copper wires and two conducting wires are provided respectively, and the two pure copper wires and the conducting wire are arranged at intervals.

6. The copper-clad aluminum wire voice coil according to claim 1, characterized in that: The reinforcing paper is wrapped around the voice coil frame by adhesion to fix the wire, pure copper wire, lead wire and welding point.

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