Composite terminal structure

Abstract

The utility model provides a composite terminal structure, which comprises a first conductor, a second conductor and a shell, the shell is connected with the first conductor in a riveting manner, the second conductor is provided with a groove, the first conductor comprises a first riveting part, and the first riveting part is provided with a second riveting part. The riveting part I is riveted and bent in the groove, so that the first electric conductor is connected with the second electric conductor in a riveting manner; the shell comprises a bending part, a limiting part, a first supporting part and a second supporting part, the bending part, the limiting part, the first supporting part and the second supporting part enclose and wrap part of the first electric conductor and the second electric conductor, the step of the concave part is designed to abut against the limiting part in a limiting mode, the bending part is positioned and guided to prevent the bending part from being pulled open in the using process, and the service life of the first electric conductor and the second electric conductor is prolonged. Through the riveting connection and the limiting abutting connection design of the bending part and the limiting part, a special welding machine does not need to be used for laser welding, the equipment investment and the production cost are reduced, meanwhile, the situations of unsoldering and insufficient soldering are avoided, and the yield and the quality stability of products are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electric connector application, specifically relates to a composite terminal structure. BACKGROUND

[0002] In the prior art terminal technology, most terminals adopt single structure or sheet material folding structure, and such structure has some problems, on the one hand, due to the limitation of folding structure, the overcurrent capacity of the product is generally low, and the demand of some high current application scenarios cannot be met, on the other hand, there is a gap between the existing terminal spring and the side wall, in order to avoid being pulled apart in the use process, it is usually necessary to use laser welding on the terminal to ensure the connection strength of the terminal, however, the process of such structure is complex, a special welding machine needs to be used, and the situation of welding and virtual welding is prone to occur, resulting in high product failure rate, increasing the production cost and quality control difficulty. SUMMARY

[0003] (1) technical problem to be solved

[0004] The utility model provides a composite terminal structure, aims at solving the problems of low overcurrent capacity of product and easy welding of welding.

[0005] (2) technical scheme

[0006] The utility model provides a composite terminal structure, including first electrically conductive body, second electrically conductive body and shell, the shell is riveted with first electrically conductive body, be equipped with recess on second electrically conductive body, first electrically conductive body includes riveting part one, riveting part one is riveted and is folded in recess, so that first electrically conductive body is riveted with second electrically conductive body.

[0007] Among them, the shell includes folding part, limiting portion, support part one and support part two, the folding part, limiting portion, support part one and support part two surround and wrap part first electrically conductive body and second electrically conductive body.

[0008] Further, one end of the shell is provided with riveting part two, the first electrically conductive body is provided with connecting groove, and the riveting part two is folded and riveted in the connecting groove.

[0009] Further, the connecting groove is "U" shaped.

[0010] Further, the folding part includes a recess, and the limiting portion includes a fixed portion adapted to the recess.

[0011] Further, the recess includes a step, and the fixed portion is in limiting abutment with the step.

[0012] Further, the recesses are provided with two, and two recesses along the axis of the shell L1 symmetry.

[0013] Further, the other end of the shell is provided with a closing.

[0014] Further, the bending part, the limiting part, the support part one and the support part two are provided with the closing.

[0015] Further, the first conductor is provided with a protrusion corresponding to the groove.

[0016] Further, it also includes a connecting part, the connecting part is integrally formed with a plurality of first conductors.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] 1, the terminal is combined together by riveting mode from three different shape structures of shell, first conductor and second conductor, the composite structure not only improves the product's conductive function, but also meets the riveting connection demand of the outside of cable, realizes the reliable and safe connection.

[0019] 2, the step of recess and the limiting abutment of limiting part are designed to position and guide the bending part, prevent the bending part from being pulled apart in the use process, through the riveting connection and the limiting abututment design of bending part and limiting part, need not use the special welding machine to carry out laser welding, simplifies the technological process, reduces the equipment investment and production cost, avoids the situation of welding and virtual welding simultaneously, improves the yield and quality stability of product. DETAILED DESCRIPTION

[0020] Figure 1 It is the overall structure schematic diagram of the utility model.

[0021] Figure 2 It is the overall structure explosion drawing of the utility model.

[0022] Figure 3 It is the front view of the utility model.

[0023] Figure 4 It is the second conductor schematic diagram of the utility model.

[0024] Figure 5 It is the first conductor schematic diagram of the utility model.

[0025] Figure 6 It is the first conductor and the second conductor connection schematic diagram of the utility model.

[0026] Figure 7 It is the shell schematic of the utility model Figure 1 .

[0027] Figure 8 A shell of the utility model is shown Figure 2 .

[0028] Figure 9 A shell bending diagram of the utility model is shown.

[0029] Figure 10 A recess part diagram of the utility model is shown.

[0030] Reference signs: 1 - first conductor, 11 - riveting part one, 12 - connecting groove, 13 - protrusion, 2 - second conductor, 21 - recess, 3 - shell, 31 - bending part, 32 - limiting part, 33 - support part one, 34 - support part two, 35 - riveting part two, 36 - recess part, 361 - step, 37 - fixed part, 38 - close end, 4 - connecting part, 41 - connecting hole. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0032] As Figures 1-10 shown, the utility model provides a compound terminal structure, including first conductor 1, second conductor 2 and shell 3, shell 3 with first conductor 1 riveting connection, second conductor 2 is equipped with recess 21, first conductor 1 includes riveting part one 11, riveting part one 11 is riveted and bent in recess 21, so that first conductor 1 with second conductor 2 riveting connection;

[0033] The outer shell 3 includes a bending portion 31, a limiting portion 32, a first support portion 33, and a second support portion 34. The bending portion 31, the limiting portion 32, the first support portion 33, and the second support portion 34 enclose and wrap the first conductor 1 and the second conductor 2. Currently, most products on the market use a relatively simple structure or a sheet folding structure. Due to the use of folding, the overcurrent capacity of the product is generally reduced. However, this utility model adopts a composite structure, riveting the first conductor 1 and the second conductor 2. The first conductor 1 is a solid sheet, and the second conductor 2 is a solid rod. The riveting of the first conductor 1 and the second conductor 2... The press-fit composite structure not only improves the conductivity of the product but also meets the requirements for external crimping connection of cables. At the same time, a shell 3 is provided to enclose the crimping area of ​​the first conductor 1 and the second conductor 2, protecting and supporting the first conductor 1 and the second conductor 2. The shell 3 is crimped to the first conductor 1, ensuring the reliability and safety of the three components. In use, the crimping part 11 of the first conductor 1 is bent into the groove 21 of the second conductor 2 under external action, so that the crimping part 11 bends and tightens the groove 21, tightly connecting the first conductor 1 and the second conductor 2 and making it difficult to open.

[0034] Furthermore, such as Figures 4-6 As shown, there are four riveting parts 11. Each pair of riveting parts 11 arranged side by side forms a group. The two groups of riveting parts 11 are symmetrically arranged along the central axis L2 of the first conductor 1. The symmetrical distribution achieves stress equalization. The four groups of riveting parts 11 form a closed force ring, converting axial force into radial clamping force. At the same time, the double symmetrical structure eliminates unilateral torque and prevents the terminal from deflecting and failing when subjected to lateral force. In addition, the multi-contact point structure reduces the contact resistance. The riveting connection between the first conductor 1 and the second conductor 2 is tighter and less likely to be separated by external force, resulting in good conductivity.

[0035] Specifically, it also includes a connecting part 4, which is integrally formed with several first conductors 1. This reduces the number of individual connecting parts and connecting steps, and simplifies the production process. This not only improves production efficiency and reduces production costs, but also reduces quality problems caused by improper connecting processes, thus improving the overall quality of the product. This design allows multiple first conductors 1 to be arranged compactly together to form an integral connecting structure, thereby saving space. In some applications with high space requirements, such as compact electrical equipment or high-density connectors, this design can effectively improve space utilization and meet design requirements.

[0036] Furthermore, the connecting part 4 is provided with a connecting hole 41, which is used to facilitate positioning during the injection molding process.

[0037] Specifically, as shown in Figure 7 The first conductor 1 is provided with a protrusion 13 at the groove 21, which makes the second conductor 2 be lifted when the first conductor 1 is riveted with the second conductor 2, so that the riveting part 11 of the first conductor 1 is easily bent and riveted in the groove 21, preventing the riveting from being out of place due to the large difference in contact height or poor contact between the second conductor 2 and the first conductor 1, thereby causing poor conductivity between the first conductor 1 and the second conductor 2.

[0038] Preferably, the first conductor 1 and the second conductor 2 are made of copper, which has excellent conductivity, good ductility and plasticity, and is easy to process into various shapes, improving production efficiency. This design enables efficient transmission of current in the first conductor 1 and the second conductor 2, thereby ensuring the conductivity of the composite terminal structure.

[0039] Specifically, as shown in Figures 8-10 One end of the shell 3 is provided with a riveting part 35, and the first conductor 1 is provided with a connecting groove 12, and the riveting part 35 is bent and riveted in the connecting groove 12. By riveting the shell 3 in the connecting groove 12, the shell 3 and the first conductor 3 are tightly connected together, thereby better supporting and protecting the first conductor 1 and the second conductor 2 inside from the influence of the external environment such as humidity and corrosion, thereby prolonging the service life of the product. The design of riveting connection makes the assembly between the shell 3 and the first conductor 1 more convenient, without the need for additional bolts or welding and other complex processes, improving production efficiency and assembly reliability.

[0040] Preferably, the shell 3 is made of stainless steel, which has high tensile strength and is not easy to break when the bent part 31 and the riveting part 35 are bent, thereby better protecting and supporting the first conductor 1 and the second conductor 2. This design is simple in structure and low in cost.

[0041] Further, the connecting groove 12 is "U"-shaped, making the connection between the shell 3 and the first conductor 1 more stable, while preventing the shell 3 from being separated from the first conductor 1 when loose. The U-shaped connecting groove 12 limits the movement of the shell 3.

[0042] Specifically, as shown in Figure 8As shown, in order to prevent the shell 3 and the first conductor 1 riveting force insufficient or riveting site loose the first conductor 1 and the second conductor 2 from the shell 3, and then the first conductor 1 and the second conductor 2 are easy to be disturbed by the outside world, such as humid corrosion, etc., the other end of the shell 3 is provided with a closing 38, further limit the first conductor 1 and the second conductor 2 from the shell after riveting, this design provides additional mechanical constraints, thereby improving the reliability of the whole structure, through the constraint of the closing 38, so that the shell 3 can more closely wrap the first conductor 1 and the second conductor 2, form a more closed protective space, effectively prevent the erosion of the external environment on the internal conductor, prolong the service life of the product, improve the durability and stability of the product.

[0043] Further, the bending part 31, the limiting part 32, the support part one 33 and the support part two 34 are all provided with the closing 38, the closing 38 has four and forms a closed structure, further limiting the first conductor 1 and the second conductor 2 from the shell.

[0044] Specifically, as shown in the drawings, Figures 9-10 The bending part 31 includes a recess 36, and the limiting part 32 includes a fixed part 37 adapted to the recess 36. In use, the bending part 31 of the shell 3 and the support part two 34 are in the same plane, the first conductor 1 and the second conductor 2 are placed in the shell 3, the shell 3 is riveted with the first conductor 1, the bending part 31 is bent under the action of external force to make the bending part 31 and the support part two 34 form a closed structure at a certain angle close to the limiting part 32. In order to fix the bent bending part 31, the fixed part 37 of the limiting part 32 is bent on the bending part 31, the fixed part 37 abuts against the recess 36 to form a closed structure to better wrap the first conductor 1 and the second conductor 2. By fixing the part 37 in the recess 36, the problem of gap between the bending part 31 and the limiting part 32 is avoided. This design prevents the bending part 31 from being pulled apart during use, improving the reliability of the connection.

[0045] Further, the recess 36 comprises a step 361, and the fixing portion 37 is limited and abuts against the step 361, so that the loosening or displacement of the components caused by vibration or external force during use can be effectively prevented, the reliability of the connection is ensured, meanwhile, the cooperation between the step 361 and the fixing portion 37 can play the role of guiding and positioning during assembly, the relative positions between the components are accurately determined, the assembly quality is improved, through the design of the bending connection, the limiting and abutting of the bending portion 31 and the limiting portion 32 are realized, and since there is a gap between the bending portion 31 and the limiting portion 32, in order to prevent the bending portion 31 and the limiting portion 32 from being pulled apart during use, in the traditional assembly design, the bending portion 31 and the limiting portion 32 are connected together by laser welding of multiple welding points, the structure and process are complex, a special welding machine needs to be used, and the welding process is prone to cause the conditions of welding separation or virtual welding, and then the product is prone to be defective, and the recess 36 and the fixing portion 37 are designed in the utility model, and the step 361 is designed to be clamped and limited, so that the structure design is simple, the connection is more stable relative to the laser welding connection, the product defective rate is low, and the cost is reduced.

[0046] Further, as shown in the drawings, Figure 10 two recesses 36 are arranged, and the two recesses 36 are symmetrical along the central axis L1 of the shell 3, the two symmetrical recesses 36 provide more accurate guiding and positioning for the limiting and abutting of the bending portion 31 and the fixing portion 37, and the two recesses 36 are arranged symmetrically, so that the bending portion 31 is prevented from being pulled apart forward or backward, and the product is prevented from being defective.

[0047] The working principle of the utility model will be described in detail as follows.

[0048] The riveting portion one 11 of the first conductor 1 is bent into the groove 21 of the second conductor 2 to realize riveting connection, the riveting connection part of the first conductor 1 and the second conductor 2 is provided with the shell 3, the riveting portion two 35 of the shell 3 is riveted and connected with the connecting groove 12 of the first conductor 1 to realize the fixation of the shell 3 and the first conductor 1, and then the riveting of the composite structure of the three is realized, the fixing portion 37 of the limiting portion 32 is bent towards the bending portion 31 to realize the fixation and limiting of the bending portion 31, the fixing portion 37 of the limiting portion 32 and the recess 36 of the bending portion 31 are matched and cooperated to realize the limiting and guiding of the bending portion 31, and the recess 36 is provided with the step 361 which is matched and limited with the fixing portion 37 to prevent the bending portion 31 from being pulled apart during use, and the protection of the first conductor 1 and the second conductor 2 is realized.

[0049] The utility model discloses an innovative point at terminal is combined together through riveting mode by three different shape structures of shell, first conductor and second conductor, and this composite structure not only improves the conductive function of product, but also can satisfy the external riveting pressure connection demand of cable and the reliable and safe connection of three; through the limiting abutment of the step of recess part and the limiting portion, the bending part positioning and guiding prevent the bending part from being pulled apart in the use process, through the riveting connection and the limiting abutment design of bending part and limiting portion, need not use the special welding machine and carry out laser welding, simplify the technological process, reduce equipment investment and production cost, avoid the condition of unwelding and false welding simultaneously, improve the yield and quality stability of product.

[0050] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be combined appropriately to form other embodiments that those skilled in the art can understand.

[0051] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A composite terminal structure, characterized by, The utility model provides a kind of electrically conductive body, including first electrically conductive body (1), second electrically conductive body (2) and shell (3), the shell (3) is riveted with the first electrically conductive body (1) connection, the second electrically conductive body (2) is equipped with recess (21), the first electrically conductive body (1) includes riveting part one (11), the riveting part one (11) is riveted and is bent in the recess (21) so that the first electrically conductive body (1) is riveted with the second electrically conductive body (2) connection; Wherein, the shell (3) includes bending part (31), limiting portion (32), support part one (33) and support part two (34), the bending part (31), limiting portion (32), support part one (33) and support part two (34) are enclosed and wrapped part first electrically conductive body (1) and second electrically conductive body (2).

2. The composite terminal structure of claim 1, wherein One end of the shell (3) is equipped with riveting part two (35), the first electrically conductive body (1) is equipped with connecting groove (12), and the riveting part two (35) is bent and riveted in the connecting groove (12).

3. The composite terminal structure of claim 2, wherein The connecting groove (12) is "U” shape.

4. The composite terminal structure of claim 1, wherein The bending part (31) includes recess (36), and the limiting portion (32) includes fixed part (37) adapted to the recess (36).

5. The composite terminal structure of claim 4, wherein The recess (36) includes step (361), and the fixed part (37) is limited to abut with the step (361).

6. The composite terminal structure of claim 5, wherein The recess (36) is provided with two, and two recesses (36) are symmetrical along the central axis L1 of the shell (3).

7. The composite terminal structure of claim 1, wherein The other end of the shell (3) is equipped with closing mouth (38).

8. The composite terminal structure of claim 7, wherein The bending part (31), limiting portion (32), support part one (33) and support part two (34) are all equipped with the closing mouth (38).

9. The composite terminal structure of claim 1, wherein The first electrically conductive body (1) is equipped with protrusion (13) corresponding to the recess (21).

10. The composite terminal structure of claim 1, wherein Further comprising connecting portion (4), the connecting portion (4) is integrally formed with a plurality of first electrically conductive body (1).

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