Ultrasonic welding terminal for crimping large wire diameter
By designing the ultrasonic welding terminal of the large wire diameter, the combination technology of ultrasonic welding and thermal tube uses the combination of ultrasonic welding and thermal tube, which solves the problem of high adverse welding rate of aluminum welding of large wire diameter, achieves efficient and stable welding effects, reduced the entire vehicle to the entire vehicle Manufacturing cost and weight.
Patent Information
- Application Number
- CN202421110776.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The prior art is difficult to effectively weld aluminum wires of large wire diameters, resulting in high welding defect rate and increasing the manufacturing cost and weight of the whole vehicle.
Design an ultrasonic welding terminal with a diameter of the large wire, stripping the ultrasonic welding of the tablet structure through the wire, and setting the heat shrinkage tube at the welding place to ensure the stable assembly of the wire and the high -pulling force.
Reduced welding adverse rates, increased the pull -out force after welding, reduced production costs and vehicle weight, and improved production efficiency.
Smart Images
Figure CN222422339U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of large-diameter welding terminals for automobile wiring harnesses, in particular to an ultrasonic welding terminal for crimping large-diameter wires. Background Art
[0002] With the improvement of people's living standards and the diversification of travel methods, there are more demands for self-driving tourism. With the advancement of science and technology, the emergence of functions such as car assistance and automatic driving, car panoramic view, and turn-assisted driving have made automobile intelligence more convenient for people to travel. The improvement of automobile intelligence will increase the various wiring harnesses that serve as the "blood vessels" of the car, and have higher requirements for the manufacturing cost and weight of the whole vehicle. The following technical defects exist: The DC positive wiring harness has a large wire diameter and is too long, resulting in excessive weight of its normal copper wire, which increases both the manufacturing cost and the weight of the vehicle. Therefore, large-diameter aluminum wires are currently used instead of ordinary copper wires. At present, the entire wiring harness industry has a large wire diameter aluminum wire, especially 60mm 2 The welding methods of aluminum wires are different.
[0003] Therefore, how to design an ultrasonic welding terminal for crimping large wire diameters has become an urgent problem to be solved. Utility Model Content
[0004] In view of the problems existing in the prior art, the utility model provides an ultrasonic welding terminal for crimping large-diameter wires to solve at least one of the above technical problems.
[0005] The technical solution of the utility model is: an ultrasonic welding terminal for crimping large wire diameters, comprising a terminal, wherein the terminal comprises an annular ring, one end of the annular ring is connected to a flat structure, a wire is arranged inside the annular ring, the wire passes through the annular ring, one end of the wire close to the flat structure is a wire stripping head, the wire stripping head is ultrasonically welded to the flat structure, and an outer ring at a welding point between the wire and the flat structure and an outer ring at a connection point between the wire and the annular ring are jointly sleeved with a heat shrink tube.
[0006] The utility model adopts the method of passing the wire through the annular ring, and the wire stripping head of the wire needs to be processed according to the process requirements. The wire stripping head and the flat structure are ultrasonically welded. During the terminal welding process, the height of the terminal rear foot is controlled, and a heat shrink tube of an appropriate length is added after the welding is completed. The outer ring of the welding place of the wire and the flat structure and the outer ring of the connection place of the wire and the annular ring are jointly sheathed with the heat shrink tube, and the heat shrink tube completely wraps the wire stripping head after crimping, thereby ensuring the stable assembly of the wire in the positive box and the DC end; ensuring the pulling force after welding; reducing the production cost; improving the production rhythm; and reducing the welding defect rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1It is a front view of the installation structure of the heat shrinkable tube of the utility model when it is not shrunk.
[0008] Figure 2 It is a top view of the installation structure of the heat shrinkable tube of the utility model after shrinkage.
[0009] Figure 3 This is a schematic diagram of the terminal and wire installation structure of the utility model.
[0010] In the figure: 1. terminal; 2. heat shrink tube; 3. wire; 101. annular ring; 102. flat plate structure; 103. through hole. DETAILED DESCRIPTION
[0011] The utility model is further described below in conjunction with the accompanying drawings.
[0012] See also Figure 1-3 The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the utility model without affecting the effects and purposes that can be achieved by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.
[0013] Embodiment 1: An ultrasonic welding terminal for crimping a large wire diameter, referring to Figure 1 , Figure 2 , Figure 3, including a terminal 1, the terminal 1 including an annular ring 101, one end of the annular ring 101 is connected to a flat structure 102, a wire 3 is arranged in the annular ring 101, the wire 3 passes through the annular ring 101, the end of the wire 3 close to the flat structure 102 is a wire stripping head, the wire stripping head and the flat structure 102 are ultrasonically welded, and the outer ring where the wire 3 and the flat structure 102 are welded and the outer ring where the wire 3 and the annular ring 101 are connected are jointly sleeved with a heat shrink tube 2. The utility model adopts the wire passing through the annular ring, the wire stripping head of the wire needs to be processed according to the process requirements, the wire stripping head and the flat structure are ultrasonically welded, the height of the rear foot of the terminal is controlled during the terminal welding process, and a heat shrink tube of an appropriate length is added after the welding is completed; the outer ring where the wire and the flat structure are welded and the outer ring where the wire and the annular ring are connected are jointly sleeved with a heat shrink tube, the size of the heat shrink tube needs to be controlled, and the heat shrink tube completely wraps the wire stripping head after crimping, ensuring its stable assembly in the positive box and the DC end; ensuring its pulling force after welding; reducing production costs; improving production cycles; and reducing welding defect rates.
[0014] Embodiment 2: Based on Embodiment 1, the flat plate structure 102 is an L-shaped structure, and the vertical plate of the L-shaped structure is connected to the annular ring 101 .
[0015] The utility model adopts an L-shaped flat plate structure, and a vertical plate of the L-shaped structure is connected with an annular ring to form a terminal body.
[0016] Embodiment 3: Based on embodiment 2, the side wall of the vertical plate of the L-shaped structure close to the horizontal plate is flush with the end surface of the annular ring 101 .
[0017] The utility model adopts an L-shaped structure in which the side wall of the vertical plate is flush with the end surface of the annular ring to form a terminal body.
[0018] Embodiment 4: Based on Embodiment 3, refer to Figure 3 The conductor 3 in the annular ring 101 is a Z-shaped structure, and the angle of the Z-shaped structure is an obtuse angle. The utility model adopts a Z-shaped conductor, and the conductor stripping head and the flat plate structure are welded by ultrasonic wave.
[0019] Embodiment 5: Based on embodiment 3, the flat plate structure 102 is a rectangular stepped block, and the small end of the stepped block is away from the annular ring 101 .
[0020] The utility model adopts a flat plate structure of rectangular step blocks.
[0021] Embodiment 6: Based on embodiment 5, the terminal 1 is made of tinned copper, and a through hole 103 is provided on the small end of the step block. The utility model adopts a tinned copper terminal, and a round hole is provided on the top of the small end of the step block, which has a high-strength structure.
[0022] The above are only preferred implementations of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. An ultrasonic welding terminal for crimping large-diameter wires, comprising a terminal (1), characterized in that: The terminal (1) comprises an annular ring (101), one end of the annular ring (101) is connected to a flat plate structure (102), a wire (3) is arranged inside the annular ring (101), the wire (3) passes through the annular ring (101), one end of the wire (3) close to the flat plate structure (102) is a wire stripping head, the wire stripping head and the flat plate structure (102) are ultrasonically welded, and the outer ring at the welding point of the wire (3) and the flat plate structure (102) and the outer ring at the connection point of the wire (3) and the annular ring (101) are jointly sleeved with a heat shrink tube (2).
2. The ultrasonic welding terminal for crimping large wire diameter according to claim 1, characterized in that: The flat plate structure (102) is an L-shaped structure, and the vertical plate of the L-shaped structure is connected to the annular ring (101).
3. The ultrasonic welding terminal for crimping large wire diameter according to claim 2, characterized in that: The side wall of the vertical plate of the L-shaped structure close to the horizontal plate is flush with the end surface of the annular ring (101).
4. The ultrasonic welding terminal for crimping large wire diameter according to claim 3, characterized in that: The conductive wire (3) in the annular ring (101) is a Z-shaped structure, and the included angles of the Z-shaped structure are all obtuse angles.
5. The ultrasonic welding terminal for crimping large wire diameter according to claim 3, characterized in that: The flat plate structure (102) is a rectangular stepped block, and the small end of the stepped block is away from the annular ring (101).
6. The ultrasonic welding terminal for crimping large wire diameter according to claim 5, characterized in that: The terminal (1) is made of tin-plated copper, and a through hole (103) is provided on the small end of the step block.