Wire connecting structure and hook welding method

Abstract

The invention relates to a wire connecting structure and a hook welding method. The wire connecting structure comprises a conductive part and a through hole formed in the conductive part. The through hole is provided with a flanging structure, and the projection of the flanging structure on the plane where the through hole is located at least partially covers the through hole. The lead core wire is inserted into the through hole from the opposite side of the flanging structure, abuts against the flanging structure, and forms a bending structure under the supporting effect of the flanging structure. The lead core wire is inserted into the through hole to form the bending structure for abutting against the through hole, so that the requirement of national standard hook welding is met, the direction does not need to be distinguished when the lead core wire is inserted into the through hole, and the production efficiency is not affected; and the cost is low, the investment is small, and the effect is good.

Description

Technical Field

[0001] The present disclosure relates to the technical fields of wire connection and hook welding, and in particular to a wire connection structure and a hook welding method. Background Art

[0002] At present, the soldering method is the mainstream method for connecting wires and conductive parts. The current method is through-welding, that is, holes are provided on copper sheets and copper bars (see Figure 1 ), insert the wire core into the hole and then fix it with solder (see Figure 2 However, the national standard GB2099.7-2025 stipulates the following method for upgrading soldering: Before soldering, the core wire of the wire should be hooked and fixed through a hole that is not too large. This is referred to as hook welding.

[0003] Currently, there are two ways to meet the new national standard. The first is to pre-form the conductor core into a hook shape, such as a C-hook or Z-hook. The second is to pre-rivet a terminal that can hook into the hole onto the conductor core. Both of these methods require pre-processing, require significant equipment investment, and are costly. Furthermore, both the pre-formed conductor core and the riveted terminal require accurate orientation when inserting the wire into the hole to ensure successful hooking, which is time-consuming and leads to low production efficiency. Summary of the Invention

[0004] In view of this, the present disclosure provides a wire connection structure and a hook welding method to solve the above problems.

[0005] The present disclosure is achieved through the following technical solution: a wire connection structure, which includes a conductive part and a through hole provided on the conductive part; the through hole is provided with a flanging structure, and the projection of the flanging structure on the surface where the through hole is located at least partially covers the through hole; the core wire of the wire is inserted into the through hole from the opposite side of the flanging structure, abuts against the flanging structure, and forms a bending structure under the support of the flanging structure.

[0006] Optionally, the through hole has two sides, the flange structure is provided on one side of the through hole, and the bending structure is used to abut against the other side of the through hole.

[0007] Optionally, the other side of the through hole is an arc-shaped structure, and the concave surface of the arc-shaped structure faces the inside of the through hole.

[0008] Optionally, the flanging structure is a planar structure having two ends, one end of the planar structure is connected to the surface where the through hole is located, and the other end of the planar structure is an arc-shaped structure.

[0009] Optionally, the maximum distance between the other side of the through hole and the planar structure is not less than the diameter of the conductor core.

[0010] Optionally, the flange structure is an arc-shaped structure, and the convex surface of the arc-shaped structure faces the through hole.

[0011] Optionally, the conductive member is a copper bar.

[0012] Optionally, the flange structure and the conductive member are formed integrally.

[0013] Optionally, the flange structure and the conductive member are fixedly connected by welding.

[0014] The present disclosure provides a hook welding method, using any of the above-mentioned wire connection structures, and the specific steps are as follows: Step 1: Insert the wire core wire into the through hole from the opposite side of the flanging structure, and the wire core wire abuts the flanging structure; Step 2: The wire core wire forms a bending structure under the support of the abutment with the flanging structure; Step 3: The bending structure abuts the through hole, and the wire core wire is connected to the conductive part.

[0015] Optionally, inserting the conductor core wire into the through hole from the opposite side of the flanging structure includes: inserting the conductor core wire vertically into the through hole from the opposite side of the flanging structure, or inserting the conductor core wire into the through hole obliquely from the opposite side of the flanging structure toward the upper surface of the flanging structure.

[0016] Optionally, the through hole has two sides, and the flange structure is arranged on one side of the through hole; in the step three, the bending structure abuts against the other side of the through hole.

[0017] Compared to existing technologies, the present invention offers the following advantages: a flanged structure is provided on the through-hole of the conductive member. When the conductor core is inserted into the through-hole, it abuts against the flanged structure, forming a bend supported by the flanged structure. The bend is used to hook into the hole, thus meeting the national standard for hook welding. Compared to pre-forming the conductor core and using external terminals, the present invention offers low cost, low investment, and high effectiveness. Furthermore, the conductor core does not need to be oriented when inserted into the through-hole, which does not affect production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of conductive parts for through-welding method.

[0019] Figure 2 This is a schematic diagram of the through-welding operation.

[0020] Figure 3 Schematic diagram of the wire connection structure disclosed in the present invention, wherein Figure (a) is a schematic diagram from one angle, and Figure (b) is a schematic diagram from another angle.

[0021] Figure 4 This is a schematic diagram of the hook welding method disclosed in the present invention.

[0022] Among them, 1-through hole, 2-flanged structure, 3-conductor core wire, 4-conductive part. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present disclosure without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0024] The present disclosure provides a wire connection structure, see Figure 3 The wire connection structure includes a conductive member 4 and a through-hole 1 formed in the conductive member 4. The through-hole 1 is provided with a flange structure 2, the projection of which on the surface where the through-hole 1 is located at least partially covers the through-hole 1. The core wire 3 of the wire is inserted into the through-hole 1 from the side opposite the flange structure 2, abuts against the flange structure 2, and forms a bend structure under the support of the flange structure 2.

[0025] In some embodiments, the conductive member 4 is a copper sheet. In this embodiment, the conductive member 4 is a copper bar, with a through-hole 1 provided at one end of the copper bar and a terminal connected to the other end. The copper bar has two sides, with a flange structure 2 provided on one side. The conductor core 3 is inserted into the through-hole 1 from the other side of the copper bar, including insertion perpendicular to the plane of the through-hole 1 or insertion at an angle toward the upper surface of the flange structure 2.

[0026] In this embodiment, the through hole 1 has two sides, and the flange structure 2 is provided on one side of the through hole 1, forming a bent structure for abutting the other side of the through hole 1. In some embodiments, the bent structure formed by the conductor core 3 under the support of the flange structure 2 is a hook-shaped structure for hooking the other side of the through hole 1.

[0027] In practice, the relative positional relationship between the conductor and the copper bar is known, meaning the contact side of the conductor core 3 with the through-hole 1 is determined. To maximize the support provided by the flange structure 2 and reduce the need to identify the hook structure's direction, the flange structure 2 is positioned on the opposite side of the through-hole 1. Supported by the flange structure 2 at its contact point, the conductor core 3 forms a hook-shaped structure with its opening facing the contact side of the through-hole 1, which then hooks onto the contact side of the through-hole 1.

[0028] In some embodiments, the other side of the through hole 1 is an arc-shaped structure, with the concave surface of the arc-shaped structure facing the through hole 1. The arc-shaped structure makes it fit more closely with the bent structure. Figure 3As shown, the through-hole 1 is a hole structure formed by three straight sides and one arcuate side. The flange structure 2 is disposed below one of the straight sides, and the arcuate side with a concave inward orientation is disposed on the opposite side of the straight side. That is, the straight side where the flange structure 2 is located is opposite the arcuate side. In other embodiments, the through-hole 1 can be a circular hole, a square hole, an elliptical hole, or any combination thereof.

[0029] In some embodiments, the flange structure 2 is a planar structure having two ends. One end of the planar structure is connected to the surface where the through hole 1 is located, and the other end of the planar structure is an arc-shaped structure to improve safety.

[0030] In some embodiments, the maximum distance between the planar flange structure 2 and the other side of the through hole is not less than the diameter of the wire core 3, ensuring that the wire core 3 can be inserted into the through hole 1 and that the bent structure formed by it can abut the other side of the through hole 1.

[0031] In other embodiments, the flange structure 2 is an arc-shaped structure, with the convex surface of the arc-shaped structure facing the through-hole 1. The arc-shaped structure with the convex surface facing the through-hole 1 can provide better support for the inserted conductor core 3, ensuring that the opening of the formed bend structure faces the other side of the through-hole 1. Compared with the concave surface facing the through-hole 1, the arc-shaped structure with the convex surface facing the through-hole 1 is more conducive to the conductor core 3 receiving force. If the concave surface of the arc-shaped structure faces the through-hole 1, it is easy to interfere with the bend structure, making it difficult to abut the through-hole 1.

[0032] In some embodiments, the flange structure 2 is formed by stamping and is integrally formed with the conductive member 4. The stamping process is completed in steps using a "punching + flanging" composite die or a continuous die.

[0033] In some other embodiments, the flange structure 2 and the conductive member 4 are fixedly connected by welding or by adhesive.

[0034] Based on any of the above wire connection structures, the present disclosure provides a hook welding method, the specific steps are as follows:

[0035] Step 1: Insert the conductor core 3 into the through hole 1 from the side opposite the flange structure 2, so that the conductor core 3 abuts the flange structure 2. The conductor core 3 can be inserted vertically into the through hole 1 from the side opposite the flange structure 2, or inserted obliquely toward the upper surface of the flange structure 2 from the side opposite the flange structure 2.

[0036] Step 2: The conductor core wire 3 forms a bent structure under the support of the flange structure 2. In some embodiments, the bent structure is a hook-shaped structure.

[0037] Step 3: The bending structure abuts against the through hole 1 and connects the wire core 3 to the conductive member 4. In some embodiments, the bending structure is used to hook the through hole 1 to facilitate subsequent connection by soldering.

[0038] In specific implementation, the through hole 1 has two sides, and the flange structure 2 is arranged on one side of the through hole 1; in step 3, the bending structure abuts against the other side of the through hole 1. Figure 4 As shown, after passing through the through-hole 1, the conductor core 3 abuts the flange structure 2. Under the combined support force of the flange structure 2, the conductor core 3 bends to form a hook-shaped structure, with the opening of the hook facing away from the flange structure 2 and toward the other side of the through-hole 1. This hook-shaped structure is used to abut the other side of the through-hole 1 and hook the through-hole 1. This means that there is no need to identify the opening direction of the hook-shaped structure; the through-hole 1 can be directly hooked and then soldered. Through soldering, the conductor core 3 is fixed to the conductive member 4, meeting the national standard for hook welding. The entire process does not require any external force or equipment other than through-welding to meet the new national standard requirements.

[0039] The method provided by the present disclosure does not require separate processing of the power cord core wire 3, does not require additional riveting terminals, and does not require identification of the direction in which the wire core wire 3 is inserted into the through hole 1. Production efficiency is not affected and the national hook welding standard can be met.

[0040] The above are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. A wire connection structure, characterized in that: The wire connection structure includes a conductive member and a through hole provided on the conductive member; The through hole is provided with a flange structure, and the projection of the flange structure on the surface where the through hole is located at least partially covers the through hole; The core wire of the conducting wire is inserted into the through hole from the opposite side of the flanging structure, abuts against the flanging structure, and forms a bent structure under the support of the flanging structure.

2. The wire connection structure according to claim 1, wherein: The through hole has two sides, the flange structure is arranged on one side of the through hole, and the bending structure is used to abut against the other side of the through hole.

3. The wire connection structure according to claim 2, wherein: The other side of the through hole is an arc-shaped structure, and the concave surface of the arc-shaped structure faces the inside of the through hole.

4. The wire connection structure according to claim 3, wherein: The flanging structure is a planar structure having two ends, one end of the planar structure is connected to the surface where the through hole is located, and the other end of the planar structure is an arc-shaped structure.

5. The wire connection structure according to claim 4, wherein: The maximum distance between the other side of the through hole and the planar structure is not less than the diameter of the conductor core.

6. The wire connection structure according to claim 2, wherein: The flange structure is an arc-shaped structure, and the convex surface of the arc-shaped structure faces the through hole.

7. The wire connection structure according to any one of claims 1 to 6, wherein: The conductive member is a copper bar.

8. The wire connection structure according to claim 7, wherein: The flange structure and the conductive member are integrally formed.

9. The wire connection structure according to claim 7, wherein: The flange structure and the conductive member are fixedly connected by welding.

10. A hook welding method, characterized in that: Using the wire connection structure according to any one of claims 1 to 9, the specific steps are as follows: Step 1: inserting the conductor core wire into the through hole from the opposite side of the flanging structure, so that the conductor core wire abuts against the flanging structure; Step 2: The conductor core wire forms a bent structure under the support of the abutment portion of the flange structure; Step 3: The bending structure abuts against the through hole, and the core wire of the conductive wire is connected to the conductive member.

11. The hook welding method according to claim 10, wherein: Inserting the conductor core into the through hole from the opposite side of the flange structure comprises: The conductor core wire is vertically inserted into the through hole from the opposite side of the flanging structure, or is obliquely inserted into the through hole from the opposite side of the flanging structure toward the upper surface of the flanging structure.

12. The hook welding method with automatic bending of the core wire according to claim 10 or 11, characterized in that: The through hole has two sides, and the flange structure is arranged on one side of the through hole; in the step three, the bending structure abuts against the other side of the through hole.

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