Vehicle-mounted terminal

Abstract

The vehicle-mounted terminal comprises a conductive piece and a wiring piece, a first area and a second area which are communicated with each other are formed on the inner side of the conductive piece, an insertion port is formed in the end, away from the second area, of the first area, and a spring piece is further arranged in the first area; a through opening is formed in the side, away from the first area, of the second area, and the wiring piece can be inserted into the second area through the opening and connected with the second area. The flat plug terminal can effectively solve the problems of poor connection reliability, electroplating defects and overlapping gaps of the existing flat plug terminal.

Description

Technical Field

[0001] This application relates to the technical field of vehicle-mounted terminals, and more particularly to a vehicle-mounted terminal. Background Technology

[0002] With the rapid development of the electric vehicle industry, higher requirements have been placed on the current-carrying capacity, connection stability, and processing efficiency of vehicle terminals. Traditional cylindrical terminals, due to their large size and limited contact area, are no longer sufficient to meet the needs of high-density electrical connection scenarios. Flat terminals, with their flat design, compact structure, and excellent conductivity, are gradually becoming the mainstream. Existing flat terminals are typically formed by stamping a single copper busbar, with the conductive area and wiring area formed by bending and overlapping. For example, the conductive plate and spring are connected by additional structures such as latches and rings, while the wiring area is constructed by folding and riveting the copper busbar. However, this type of structure has significant drawbacks:

[0003] Firstly, the two conductive plates in the conductive area are fixed by non-integrated connection methods such as hoops and buckles, which can easily lead to loosening of the connection due to vibration or long-term use, posing a risk of insufficient structural reliability.

[0004] Secondly, the stamping oil remaining in the terminal body during the stamping and bending process is difficult to completely remove, which prevents the overlapping parts from forming an effective plating layer during electroplating, causing the overlapping surface to oxidize and turn black, which seriously affects the conductivity and corrosion resistance.

[0005] Third, the wiring area is formed by folding a single copper plate. The bending process can easily lead to tiny gaps between the overlapping surfaces, which not only reduces the effective contact area but also causes local overheating due to uneven current distribution, further threatening the stability of the electrical connection. Utility Model Content

[0006] The purpose of this application is to provide an automotive terminal that can effectively solve the problems of poor connection reliability, electroplating defects and overlapping gaps of existing flat plug terminals.

[0007] To achieve the above objectives, this application adopts the following technical solution:

[0008] On one hand, a vehicle terminal is provided, comprising: a conductive element and a connector, wherein the inner side of the conductive element has a first region and a second region that are connected to each other, the end of the first region opposite to the second region is provided with a plug interface, and the first region is also provided with a spring sheet; the second region is provided with a through opening on the side opposite to the first region, and the connector can be inserted into the second region and connected through the opening.

[0009] Furthermore, the connector is riveted to the second region of the conductive element.

[0010] Furthermore, the second region is provided with a plurality of first positioning through holes, and the connector is provided with a second positioning through hole corresponding to the first positioning through hole. The connector is connected to the conductive component by passing through the first positioning through hole and the second positioning through hole.

[0011] Furthermore, the first positioning through holes are arranged in an array, and adjacent rows are staggered.

[0012] Furthermore, the spring sheet is riveted to the first region.

[0013] Furthermore, the conductive component includes two conductive portions spaced apart, and the two conductive portions are connected by a connecting portion on both sides of the ends opposite to the connector, forming the plug interface between the two connecting portions.

[0014] Furthermore, the conductive part and the connecting part are integrally formed by stamping.

[0015] Furthermore, the width of the first region is greater than the width of the second region.

[0016] Furthermore, the connector includes a plug portion and a wiring portion that are vertically connected, the plug portion being connected to the second region, and the wiring portion being used to connect to a wire lug.

[0017] Furthermore, the wiring section is provided with a connection through hole.

[0018] The beneficial effects of this application are as follows: The first region serves as the core conductive channel, with an insertion interface at its end for mating with an external connector. An internally installed spring plate, through elastic deformation, tightly engages with the insertion component, providing contact pressure while achieving multi-directional adaptive compensation to avoid poor contact due to vibration or tolerances. The second region serves as a wiring transition area, with a through-hole in its sidewall. The wiring component is inserted into the cavity of the second region through this opening and forms a surface contact connection with the inner wall of the conductive component through riveting or laser welding. This structure breaks through the limitations of traditional folding processes, completely eliminating overlapping gaps. Furthermore, because the conductive component and the wiring component are manufactured separately, stamping oil can be completely removed through independent cleaning before electroplating, ensuring uniform coverage of the electroplated layer at the connection interface and preventing oxidation and blackening problems. Attached Figure Description

[0019] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a perspective view of the vehicle-mounted terminal described in the embodiments of this application;

[0021] Figure 2 This is an exploded view of the vehicle-mounted terminal described in the embodiments of this application;

[0022] Figure 3 This is a perspective view of the conductive element described in the embodiments of this application;

[0023] Figure 4 This is a perspective view of the wiring device described in the embodiments of this application.

[0024] In the figure: 1. Conductive component; 101. First area; 102. Second area; 103. Plug-in interface; 104. Opening; 105. Conductive part; 106. Connecting part; 107. First positioning through hole; 2. Wiring component; 201. Plug-in part; 202. Wiring part; 203. Second positioning through hole; 204. Connecting through hole; 3. Spring sheet; 4. Positioning component. Detailed Implementation

[0025] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] like Figures 1 to 4As shown, this embodiment provides a vehicle terminal, including: a conductive element 1 and a connector 2. The conductive element 1 has a first region 101 and a second region 102 that are connected to each other on its inner side. The end of the first region 101 opposite to the second region 102 is provided with a plug interface 103. The first region 101 is also provided with a spring sheet 3. The second region 102 is provided with a through opening 104 on its side opposite to the first region 101. The connector 2 can be inserted into the second region 102 and connected through the opening 104.

[0029] Based on the above scheme, the conductive component 1 adopts an integrated stamping process, and its inner side forms a first region 101 and a second region 102 that are interconnected. The first region 101 has a plug interface 103 at its end and a built-in spring sheet 3. When the external male terminal is inserted, the spring sheet 3 generates continuous contact pressure through elastic deformation to ensure stable contact resistance during dynamic insertion and removal. The second region 102 has a through opening 104, and the connector 2 can be inserted axially along the opening 104 and fixed to the conductive component 1 by riveting or welding to form a surface contact conductive path without bending or overlapping. This design significantly optimizes performance through three core innovations: First, the conductive component 1 and the wiring component 2 are processed independently before assembly, completely eliminating the problem of stamping oil residue caused by the traditional copper busbar folding process, ensuring complete coverage of the electroplated layer on the contact surface, and preventing oxidation and blackening of the overlapping area; Second, the axial insertion connection of the wiring component 2 replaces the traditional bending and overlapping structure, fundamentally eliminating uneven current distribution caused by gaps. At the same time, the continuous conductive path of the integrally formed conductive component 1 and the built-in design of the spring plate 3 avoid the risk of mechanical loosening of the buckle / hoop connection, improving vibration resistance by more than 50%; Third, the modular split structure allows the conductive component 1 and the wiring component 2 to use differentiated materials (such as a combination of high-elasticity conductive component 1 and high-current-conductivity wiring component 2), simplifying the processing flow while achieving synergistic optimization of current carrying capacity and mechanical strength, increasing single-piece processing efficiency by 30%, and reducing contact resistance to below 0.15mΩ, making it particularly suitable for the long-term stable operation requirements of electric vehicles in high-vibration, high-current (above 200A) scenarios.

[0030] Specifically, the connector 2 is riveted to the second region 102 of the conductive element 1. This riveting connection method offers several advantages. First, it achieves a stable connection between the connector 2 and the conductive element 1, effectively preventing loosening or detachment due to vibration or external forces, thus improving the overall reliability of the vehicle terminal. Second, the riveting connection forms a bend-free, overlapping surface contact conductive path, eliminating gaps that may exist in traditional bend-overlap structures, resulting in a more uniform current distribution, reduced contact resistance, and improved conductivity. Furthermore, the riveting process is relatively simple and easy to implement, improving production efficiency and reducing manufacturing costs. Therefore, this design of riveting the connector 2 to the second region 102 of the conductive element 1 not only improves the electrical performance and mechanical strength of the vehicle terminal but also optimizes the manufacturing process and reduces production costs, which is of great significance for the long-term stable operation of the vehicle terminal.

[0031] More specifically, the second region 102 is provided with a plurality of first positioning through holes 107, and the connector 2 is provided with a second positioning through hole 203 corresponding to the first positioning through hole 107. The connector 2 is connected to the conductive component 1 by passing the positioning element 4 through the first positioning through hole 107 and the second positioning through hole 203. During the assembly process, the connector 2 and the second region 102 of the conductive component 1 must first be aligned to ensure that the first positioning through hole 107 and the second positioning through hole 203 correspond one-to-one; then, the positioning element 4 (such as a rivet) is passed through the aligned first positioning through hole 107 and the second positioning through hole 203; finally, the positioning element 4 is fixed by riveting or tightening screws, thereby firmly connecting the connector 2 to the second region 102 of the conductive component 1.

[0032] In this scheme, by setting the first positioning through hole 107 and the second positioning through hole 203, and using the positioning element 4 for connection, the positioning accuracy between the connector 2 and the conductive element 1 can be greatly improved, ensuring the stability after connection. The fixed connection formed by the positioning element 4 passing through the through hole can significantly enhance the connection strength between the connector 2 and the conductive element 1, preventing the connection from loosening or falling off due to vibration or external force. Compared with other connection methods (such as welding, bonding, etc.), this connection method using the positioning element 4 has the advantages of simple operation and ease of implementation, which can simplify the assembly process and improve production efficiency.

[0033] Meanwhile, the first positioning through holes 107 are arranged in an array, with adjacent rows staggered. The array arrangement of the first positioning through holes 107 means that multiple through holes are distributed according to a certain pattern on the second region 102 of the conductive element 1, providing multiple connection points for the connector 2. This distribution helps to disperse the connection force, making the connection between the connector 2 and the conductive element 1 more uniform and stable. The staggered arrangement of adjacent rows of the first positioning through holes 107 further enhances the stability of the connection. The staggered arrangement prevents the connector 2 from sliding or rotating relative to the conductive element 1 when subjected to external forces, thus ensuring the strength of the connection.

[0034] The dimensions and positional tolerances of the first positioning through-hole 107 are strictly controlled. This means that the size and position of each through-hole are very precise, ensuring that the positioning element 4 (such as a rivet) can accurately pass through the through-hole and form a tight connection with the wiring element 2 and the conductive element 1. This precise control helps reduce errors in the connection process and improves the mechanical stability and electrical contact reliability of the connection.

[0035] Optionally, the spring sheet 3 is riveted to the first region 101. The spring sheet 3 is precisely placed within the first region 101 and fixed by a riveting process to ensure a tight and secure connection with the first region 101. When an external male terminal is inserted into the connector 103 of the first region 101, the spring sheet 3 deforms due to its elastic properties, forming a tight contact with the male terminal and providing continuous contact pressure. This design not only enhances the mechanical stability of the vehicle terminal and prevents the spring sheet 3 from loosening or falling off due to vibration or external force, but also ensures a reliable electrical connection with the external male terminal, resisting changes in contact resistance caused by various external forces or temperature variations, and maintaining stable conductivity. Simultaneously, the elastic design of the spring sheet 3 has a certain degree of adaptability, accommodating male terminals of different sizes and compensating for manufacturing tolerances within a certain range, thus improving the flexibility and compatibility of the vehicle terminal. Furthermore, the riveting fixing method of the spring sheet 3 is relatively simple and easy to implement, simplifying the assembly process of the vehicle terminal and improving production efficiency.

[0036] In some embodiments, the conductive element 1 is cleverly designed with two spaced-apart conductive portions 105 connected by a connecting portion 106 on both sides of the end opposite to the connector 2, forming the core structure of the vehicle terminal. Its working principle is that the two conductive portions 105 exist independently yet are tightly connected by the connecting portion 106, with the gap between them forming a connector 103 for receiving external male terminals, achieving two-point or multi-point contact. This design offers significant advantages: firstly, it improves the stability of the vehicle terminal, allowing it to maintain its shape and position under external force; secondly, the multi-point contact method reduces contact resistance, enhancing the reliability and conduction efficiency of the electrical connection; thirdly, this split design allows the conductive element 1 to more flexibly adapt to male terminals of different sizes and shapes, improving versatility and compatibility; finally, the processing and assembly process is also simplified, improving production efficiency and processing accuracy.

[0037] It is worth mentioning that the conductive part 105 and the connecting part 106 are integrally formed by stamping. Through the stamping process, the material of the conductive part 1 is stamped into shape in a mold in one go, forming two spaced conductive parts 105 and the connecting part 106 connecting them, while directly shaping the shape of the plug interface 103.

[0038] In this design, one-piece stamping improves the structural strength and integrity of the conductive component 1. Since the conductive part 105 and the connecting part 106 are integrally formed, the connection between them is more robust, less prone to loosening or detachment, thus enhancing the durability and reliability of the vehicle terminal. Secondly, this manufacturing process simplifies the production flow. Traditional split designs require multiple parts to assemble, while one-piece stamping eliminates this step, directly obtaining the complete conductive component 1, greatly improving production efficiency and reducing manufacturing costs. Furthermore, one-piece stamping also ensures the precision and consistency of the conductive component 1. Because it is formed in a single mold, the size and shape of each conductive component 1 remain consistent, reducing performance differences caused by processing errors and improving the quality and stability of the vehicle terminal.

[0039] Specifically, the width of the first region 101 is greater than the width of the second region 102. As the primary area for interfacing with external male terminals, the first region 101 requires sufficient width to accommodate the insertion of the male terminals and ensure good electrical contact and mechanical stability. Simultaneously, sufficient width also provides installation space for contact elements such as the spring sheet 3, making the contact more reliable. Although the first region 101 is wider, the second region 102 is relatively narrower, which better accommodates the riveting of the connector 2. Furthermore, this design keeps the vehicle-mounted terminals compact in overall size, optimizing space utilization and facilitating arrangement and installation within limited space.

[0040] Generally, the design of the connector 2 adopts a structure in which the plug part 201 and the wiring part 202 are vertically connected, providing a convenient and reliable solution for the connection and wiring of the vehicle terminal.

[0041] Specifically, the connector 201 is connected to the second region 102. This design allows the connector 2 to be securely mounted on the conductive element 1, achieving stable transmission of electrical signals through a tight fit with the conductive element 1. The shape and size of the connector 201 are generally matched with the shape and size of the second region 102 to ensure that the connection between the two is both tight and reliable.

[0042] The connector 202 has a connecting through hole 204, designed for connection with a wire lug. A wire lug is a common component in wire connections; by inserting the wire core into the lug and crimping it with a crimping tool, a secure connection between the wire and the connector 2 can be achieved. The connecting through hole 204 provides space for inserting the wire lug and also facilitates the wiring operation.

[0043] The beneficial effects of this design are mainly reflected in the following aspects:

[0044] Improved connection reliability: The tight fit between the plug portion 201 and the second area 102, and the secure connection between the wiring portion 202 and the wire lug, together improve the reliability of the vehicle terminal connection. This design ensures that electrical signals will not be interrupted or fluctuate during transmission due to poor connection.

[0045] Enhanced adaptability: The vertical connection design of the plug-in part 201 and the wiring part 202 allows the wiring component 2 to adapt to the needs of wire connection in different directions and angles. This design improves the flexibility and adaptability of the vehicle terminal, enabling it to be used in a wider variety of electrical equipment.

[0046] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0047] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0049] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A vehicle-mounted terminal, characterized in that, The utility model relates to a connecting device of electric wire, including: Conductive piece (1) and connecting piece (2), the inner side of conductive piece (1) forms with the first area (101) and second area (102) of intercommunication, the end of first area (101) is equipped with the plug interface (103) away from second area (102), first area (101) is equipped with spring leaf (3) still, the side of second area (102) is equipped with the through opening (104) away from first area (101), connecting piece (2) can be inserted into second area (102) through the opening (104) and is connected.

2. The vehicle terminal according to claim 1, characterized by Connecting piece (2) is riveted in second area (102) of conductive piece (1).

3. The vehicle terminal according to claim 2, characterized by Second area (102) is equipped with a plurality of first positioning through -hole (107), and connecting piece (2) is equipped with the second positioning through -hole (203) corresponding with first positioning through -hole (107), by the first positioning through -hole (107) and the second positioning through -hole (203) of positioning piece (4) passes through, then connecting piece (2) is connected with conductive piece (1).

4. The vehicle terminal according to claim 3, characterized by First positioning through -hole (107) is arrayed distribution, and two adjacent rows are misaligned arrangement.

5. The vehicle terminal according to claim 1, characterized by Spring leaf (3) is riveted in first area (101).

6. The vehicle terminal according to any one of claims 1 to 5, characterized by Conductive piece (1) includes two conductive parts (105) arranged at intervals, and the two ends of the two conductive parts (105) away from the connecting piece (2) are connected by a connecting part (106), and the plug interface (103) is formed between the two connecting parts (106).

7. The vehicle terminal according to claim 6, characterized by The conductive part (105) and the connecting part (106) are integrally formed by stamping.

8. The vehicle terminal according to any one of claims 1 to 5, characterized by The width of the first area (101) is greater than the width of the second area (102).

9. The vehicle terminal according to any one of claims 1 to 5, characterized by The connecting piece (2) includes a plug-in part (201) and a connecting part (202) that are vertically connected, the plug-in part (201) is connected to the second area (102), and the connecting part (202) is used to connect with the wire nose.

10. The vehicle terminal according to claim 9, characterized by The connecting part (202) is provided with a connecting through hole (204).

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