A solderless interlock assembled wire clip structure
By employing a weld-free interlocking assembly structure and utilizing the limiting design of wire clamping springs and conductors, the high cost and environmental problems caused by welding connections in existing technologies are solved, achieving efficient and reliable wire fixing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- UTILITY ELECTRICAL CO LTD
- Filing Date
- 2022-12-16
- Publication Date
- 2026-07-21
AI Technical Summary
The existing wire clamping structure is connected and fixed by welding, which results in high production costs, low production capacity and environmental problems.
It adopts a weld-free interlocking assembly structure. Through the unique design of the clamping spring and conductor, the interlocking connection between the clamping spring and the conductor is achieved by using the limiting wing and positioning hole, avoiding welding fixation.
It reduces production costs and labor hours, improves connection reliability, and meets international standard conductor retention requirements.
Smart Images

Figure CN115799853B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a wire clamping structure for a weld-free interlocking assembly. Background Technology
[0002] Terminal blocks are accessories used to achieve electrical connections. They bridge gaps in circuits or between isolated circuits, allowing current to flow and enabling the circuit to perform its intended function. They are widely used in lighting, elevator control, instrumentation, and power supplies. The wire clamping structure, used to mate with wires in a terminal block assembly, is a key component, serving to connect and fix the wires and transmit current and signals.
[0003] In existing technologies, some wire clamping structures connect and fix the conductor to the clamping spring by welding. The drawbacks of this structure are twofold: firstly, it requires specialized welding equipment and tooling fixtures for production, resulting in significant investment and low production capacity, making it difficult to reduce product costs; secondly, the welding process generates harmful fumes, posing a risk to human health and failing to meet environmental regulations. Therefore, there is a need to develop a novel, weld-free, interlocking wire clamping structure to reduce costs and enhance market competitiveness. Summary of the Invention
[0004] The purpose of this invention is to provide a welding-free interlocking assembly wire clamping structure, which solves the problem in the prior art where the wire clamping structure connects and fixes the conductor to the wire clamping spring by welding.
[0005] The above-mentioned objective of the present invention is achieved by the following solution:
[0006] A wire clamping structure for interlocking assembly without welding includes a wire clamping spring (100) and a conductor (200). The bottom of the wire clamping spring (100) is provided with an I-shaped through groove (103), and a limiting wing (101) and (102) are symmetrically provided on both sides. The wire clamping spring (100) is provided with a suitable arc bending acute angle (104) and two suitable arc bending obtuse angles (105) and (106). The conductor (200) has a Z-shaped bend (203) at its rear end to limit the upward tilting of the clamping spring (100); the conductor (200) has an upward 90° short side bend (210) at its left end, and a mounting positioning hole (201) is opened in the middle of the root of the short side bend (210) to be paired with the limiting wing (101) of the clamping spring (100); at the right end there is an upward 90° long side bend (220) and a 90° transverse bend (230); a mounting positioning hole (202) is opened in the middle of the root of the long side bend (220) to be paired with the limiting wing (102) of the clamping spring (100); a downward limiting rib (205) is opened at a suitable position on the transverse bend (230) to limit the top (107) of the clamping spring (100).
[0007] The assembly method of this invention is as follows:
[0008] Press the top of the clamping spring (100) downwards by 2mm, press Figure 7 The conductor (200) is pushed from back to front along its bottom upper surface, causing the two bottom limiting protrusions (101) and (102) to engage with the two mounting positioning holes (201) and (202) of the conductor (200). The clamping spring (100) is then released, and its top (107) engages with the limiting rib (205) in the transverse bend (230) of the conductor (200), completing the assembly. The wire clamping spring (100) and the conductor (200) are interlocked and fixed after assembly due to their unique structure, achieving the positioning of the wire clamping spring (100) in the up, down, left, and right directions.
[0009] The working principle of this invention is as follows:
[0010] The rivetless interlocking wire clamping structure is installed in a plastic housing. A push rod installed inside the housing pushes down the top of the wire clamping spring (100), separating the top of the spring (100) from the limiting rib (205) in the transverse bend (230) of the conductor (200) to a suitable position. The wire is then inserted between the conductor (200) and the wire clamping spring (100). Releasing the push rod causes the spring (100) to return to its original position, clamping and fixing the wire. This wire clamping structure provides a reliable connection to the wire, with a wire holding or pulling force exceeding 80N, meeting international standard requirements.
[0011] The welding-free interlocking assembly wire clamping structure of the present invention overcomes the shortcomings of the prior art. It adopts a new structure and is connected and fixed by an original interlocking assembly structure of wire clamping springs and conductors. No additional welding connection and fixation is required, which greatly reduces costs and labor time and improves market competitiveness. Attached Figure Description
[0012] (1) Figure 1 An assembly isometric view of a clamping structure for a weld-free interlocking assembly according to the present invention;
[0013] (2) Figure 2 Exploded view of the clamping structure for weld-free interlocking assembly;
[0014] (3) Figure 3 A top view of the clamping structure for a weld-free interlocking assembly.
[0015] (4) Figure 4 Side view of the clamping structure for weld-free interlocking assembly.
[0016] (5) Figure 5 Left view of the clamping structure for weld-free interlocking assembly.
[0017] (6) Figure 6 A schematic diagram of the connection between the clamping structure and the mating conductors for a solderless interlocking assembly.
[0018] (7) Figure 7 Pre-assembly schematic diagram of the clamping structure for weld-free interlocking assembly Detailed Implementation
[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0020] Figures 1-7This is a schematic diagram of the wire clamping structure for the weld-free interlocking assembly of the present invention. It includes a wire clamping spring (100) and a conductor (200). The bottom of the wire clamping spring (100) has an I-shaped through groove (103), and a limiting wing (101) and (102) are symmetrically provided on both sides. The wire clamping spring (100) has a suitable arc bending acute angle (104) and two suitable arc bending obtuse angles (105) and (106). The conductor (200) has a Z-shaped bend (203) at its rear end to limit the upward tilting of the clamping spring (100); the conductor (200) has an upward 90° short side bend (210) at its left end, and a mounting positioning hole (201) is opened in the middle of the root of the short side bend (210) to be paired with the limiting wing (101) of the clamping spring (100); at the right end there is an upward 90° long side bend (220) and a 90° transverse bend (230); a mounting positioning hole (202) is opened in the middle of the root of the long side bend (220) to be paired with the limiting wing (102) of the clamping spring (100); a downward limiting rib (205) is opened at a suitable position on the transverse bend (230) to limit the top (107) of the clamping spring (100).
[0021] The assembly method of the above-mentioned weldless interlocking wire clamp structure is as follows:
[0022] Press the top of the clamping spring (100) downwards by 2mm, press Figure 7 Push the conductor (200) from back to front along its bottom upper surface as shown, so that the two bottom limiting protrusions (101) and (102) engage with the two mounting positioning holes (201) and (202) of the conductor (200). Release the clamping spring (100), and its top (107) engages with the limiting rib (205) in the transverse bend (230) of the conductor (200), completing the assembly action. The assembled state is as follows. Figure 1 As shown. The wire clamping spring (100) and the conductor (200) rely on their unique structure to achieve interlocking connection and fixation after assembly, realizing the positioning of the wire clamping spring (100) in the up, down, left and right directions.
[0023] The working principle of the above-mentioned weldless interlocking assembly wire clamping structure is as follows:
[0024] The rivetless interlocking wire clamping structure is installed in a plastic housing. A push rod installed inside the housing pushes down the top of the wire clamping spring (100), separating the top of the spring (100) from the limiting rib (205) in the transverse bend (230) of the conductor (200) to a suitable position. The wire is then inserted between the conductor (200) and the wire clamping spring (100). Releasing the push rod causes the spring (100) to return to its original position, clamping and fixing the wire. This wire clamping structure provides a reliable connection to the wire, with a wire holding or pulling force exceeding 80N, meeting international standard requirements.
[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A weld-free interlocking wire clamping structure, comprising a wire clamping spring (100) and a conductor (200), wherein the wire clamping spring (100) has a suitable arc bending acute angle (104) and two suitable arc bending obtuse angles (105) and (106); characterized in that: At the bottom of the clamping spring (100), an I-shaped through groove (103) is provided, and a first limiting wing (101) and a second limiting wing (102) are symmetrically provided on both sides; a Z-shaped bend (203) is provided at the rear end of the conductor (200) to limit the upward tilting of the clamping spring (100); a 90° upward short side bend (210) is provided at the left end of the conductor (200), and a mounting positioning hole (201) is provided in the middle of the root of the short side bend (210) for mating and connecting with the limiting wing (101) of the clamping spring (100); At the right end of the conductor (200), there is an upward 90° long side bend (220) and a 90° horizontal bend (230); a mounting positioning hole (202) is opened in the middle of the root of the long side bend (220) for mating and connecting with the limiting wing (102) of the clamping spring (100). The structure features two symmetrical mounting and positioning holes in the middle of the two bends at the bottom of the conductor. During assembly, these holes are interlocked with the clamping spring to achieve positioning connection in the upper, lower, left, and right directions of the clamping spring. An I-shaped through groove is provided at the bottom of the clamping spring, and the neck width of the I-shaped through groove can match the width of the Z-shaped bend (203); The width of the end of the I-shaped through groove (103) is greater than the width of the Z-shaped bend (203).
2. The wire clamping structure for weld-free interlocking assembly as described in claim 1, wherein, A downward limiting rib (205) is provided at a suitable position in the transverse bend (230) to limit the top (107) of the clamping spring (100).
3. The wire clamping structure for weld-free interlocking assembly as described in claim 1, wherein, The clamping spring has a set of limiting convex wings symmetrically opened on both sides to match the mounting and positioning holes in the middle of the two bends at the bottom of the conductor. During assembly, the convex wings are interlocked and fixed with the conductor.
4. The wire clamping structure for weld-free interlocking assembly as described in claim 2, wherein, The number of the limiting ribs (205) is 1 to 3.
5. The wire clamping structure for weld-free interlocking assembly as described in claim 4, wherein, The multiple limiting ribs (205) are arranged in parallel.
6. The wire clamping structure for weld-free interlocking assembly as described in claim 1, wherein, The conductor (200) is made of manganese copper.