Terminal, electrical connection structure and vehicle

Abstract

The utility model relates to a terminal, an electrical connection structure and a vehicle, and the terminal is used for connecting a first conductor and a second conductor, and comprises a head part and a tail part. The head part is provided with an elastic tongue for elastically contacting the first conductor; the tail part is provided with a tail clamp for fixing the first conductor and / or the second conductor; the elastic tongue is at least made of a first conductive material; the tail clamp is at least made of a second conductive material; the elastic tongue and the tail clamp are integrally formed by the same blank. According to the technical scheme, the elastic tongue and the tail clamp are made of different conductive materials and are suitable for being connected with the first conductor and the second conductor, the conductive performance of the wiring terminal is ensured, meanwhile, the elastic tongue and the tail clamp are made of the same material blank, and the possibility of electrochemical corrosion caused after the elastic tongue and the tail clamp are connected into a whole after being manufactured separately is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of wiring terminals, and in particular to a terminal, an electrical connection structure, and a vehicle. Background Art

[0002] Aluminum conductors are widely used due to their excellent electrical conductivity and light weight. Aluminum conductors and other conductors are typically connected via conductive terminals through methods such as crimping. In related art, the terminal head is equipped with a spring tongue to limit the movement of the mating terminal, and the terminal tail is equipped with a tail clip for crimping the aluminum conductor. The spring tongue and tail clip are often manufactured separately and then connected together through ultrasonic welding or other fasteners. This complex manufacturing process also makes the connection area susceptible to electrochemical corrosion due to factors such as external moisture and processing quality, affecting the quality of the terminal. Utility Model Content

[0003] The embodiments of the present application provide a terminal, an electrical connection structure, and a vehicle, which reduce the possibility of electrochemical corrosion of the terminal, thereby at least partially solving the above-mentioned technical problems.

[0004] In order to achieve the above object, according to a first aspect of the present application, a terminal is provided for connecting a first conductor and a second conductor, comprising:

[0005] a head having a spring tongue for elastically contacting the first conductor;

[0006] a tail portion having a tail clip for fixing the second conductor;

[0007] Wherein, the spring tongue is made of at least a first conductive material; the tail clip is made of at least a second conductive material; and the spring tongue and the tail clip are integrally formed from the same blank.

[0008] Optionally, the head and the tail are integrally formed from the same blank.

[0009] Optionally, the head portion is at least partially made of the first conductive material; and the tail portion is at least partially made of the second conductive material.

[0010] Optionally, the first conductive material includes at least one of copper-nickel-silicon, phosphor bronze, brass, and high-copper alloy.

[0011] Optionally, the brand of the first conductive material includes at least one of C7025, C7035, C70260, C5190, C5191, C5210, C5212, C2600, C2620, C2680, C1940, and C1441.

[0012] Optionally, the second conductive material includes at least one of aluminum, aluminum alloy and brass.

[0013] Optionally, the brand of the second conductive material includes at least one of CuZn10, CuZn15, CuZn20, CuZn30, CuZn35, CuZn37, CuZn35Pb1, CuZn34Pb2, CuZn40, CuZn37Pb2, CuZn36Pb3, CuZn38Pb2, CuZn39Pb3, CuZn40Pb2, CuZn28Sn1, and CuZn20Al2.

[0014] Optionally, the header includes:

[0015] a limiting cavity, for accommodating the first conductor;

[0016] Wherein, the spring tongue at least partially extends into the limiting cavity.

[0017] Optionally, one end of the spring tongue is integrally formed with the head, and the other end is movably arranged in the limiting cavity.

[0018] Optionally, the tail clip includes:

[0019] A wire harness crimping wing is provided at an end of the tail away from the head and is used to limit the second conductor.

[0020] Optionally, the tail clip further includes:

[0021] The conductor crimping wing is provided between the head and the harness crimping wing and is used for fixing the second conductor.

[0022] Optionally, a surface of the conductor crimping wing is provided with a crimping structure for contacting the second conductor to fix the second conductor.

[0023] Optionally, the crimping structure is configured as a plurality of grooves formed on the surface of the conductor crimping wing, for the second conductor to be embedded therein to fix the second conductor.

[0024] Optionally, the tail includes:

[0025] a connecting portion, at least partially connected between the harness crimping wing and the conductor crimping wing;

[0026] Wherein, the head, the wire harness crimping wings, the conductor crimping wings and the connecting portion are integrally formed.

[0027] Optionally, the connecting portion is formed with an accommodating groove for accommodating the second conductor.

[0028] Optionally, the header includes:

[0029] a limiting cavity, for accommodating the first conductor;

[0030] Wherein, the accommodating groove is communicated with the limiting cavity.

[0031] Optionally, the terminal further includes:

[0032] a terminal strip, arranged at an end of the tail away from the head;

[0033] Wherein, the terminal strip and the tail are integrally formed.

[0034] Optionally, a positioning hole is provided on the terminal strip.

[0035] According to a second aspect of the present application, there is provided an electrical connection structure, comprising the aforementioned terminal, the first conductor, and the second conductor;

[0036] The first conductor is fixedly connected to the head of the terminal; and the second conductor is fixedly connected to the tail of the terminal.

[0037] Optionally, the first conductor is configured as a mating terminal.

[0038] Optionally, the first conductor is configured as an aluminum wire.

[0039] According to a third aspect of the present application, a vehicle is provided, comprising the terminal as described above, or comprising the electrical connection structure as described above.

[0040] The beneficial effects of the present application are: providing a terminal, a method for manufacturing the terminal, and a vehicle that reduce the possibility of electrochemical corrosion.

[0041] More specifically, some embodiments of the present application may produce the following specific beneficial effects:

[0042] The terminal provided herein features a spring tongue and tail clip made of different conductive materials, adapted to connect a first conductor to a second conductor. While ensuring the terminal's electrical conductivity, the spring tongue and tail clip are manufactured from the same stock, reducing the likelihood of electrochemical corrosion after the spring tongue and tail clip are manufactured separately and then joined together. Using the same stock to form the spring tongue and tail clip also reduces the need for fasteners between them, eliminating the need for additional components or complex production processes during manufacturing. This results in a relatively simple manufacturing process and low production costs for the terminal provided herein.

[0043] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0045] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same drawing numbers represent the same parts in the following description.

[0046] Figure 1 is a schematic diagram of the overall structure of the terminal provided in an exemplary embodiment of the present application;

[0047] Figure 2 is a cross-sectional view of a terminal provided in an exemplary embodiment of the present application;

[0048] Figure 3 1 is a schematic structural diagram of a blank used in a terminal provided in an exemplary embodiment of the present application;

[0049] Figure 4 is a schematic structural diagram of an electrical connection structure provided in an exemplary embodiment of the present application;

[0050] Figure 5 2 is a schematic structural diagram of a vehicle provided in an exemplary embodiment of the present application.

[0051] Description of reference numerals:

[0052] 1. Vehicle;

[0053] 100. Terminal;

[0054] 110. Head; 111. Spring tongue; 112. Limiting cavity;

[0055] 120, tail; 121, tail clip; 121a, harness crimping wing; 121b, conductor crimping wing; 121c, groove; 122, connecting portion; 122a, receiving groove;

[0056] 130. Terminal strip; 131. Positioning hole;

[0057] 10. Blank; 11. First spliced ​​body; 12. Second spliced ​​body;

[0058] 20. Feed tray;

[0059] 200. Electrical connection structure; 210. First conductor; 220. Second conductor. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0061] According to the first aspect of this application, referring to Figures 1 to 2 As shown, the present application provides a terminal 100. Terminal 100 is used to connect a first conductor and a second conductor. Terminal 100, the first conductor, and the second conductor are all conductive. Terminal 100 and the first conductor are fixedly connected, for example, by interlocking, and the terminal 100 and the second conductor are connected, for example, by crimping, thereby connecting the first and second conductors via terminal 100. For ease of explanation, the present application uses the first conductor as a mating terminal and the second conductor as an aluminum wire as an example to specifically illustrate the inventive concept of the present application.

[0062] The terminal 100 provided in this application includes a head 110 and a tail 120. The head 110 has a spring tongue 111 for elastically contacting a first conductor; the tail 120 has a tail clip 121 for securing a second conductor; the spring tongue 111 is made of at least a first conductive material; the tail clip 121 is made of at least a second conductive material; and the spring tongue 111 and tail clip 121 are integrally formed from the same blank.

[0063] With this solution, spring tongue 111 and tail clip 121 are made of different conductive materials, adapted to connect the first and second conductors, respectively. While ensuring the electrical conductivity of terminal block 100, spring tongue 111 and tail clip 121 are manufactured from the same stock, reducing the likelihood of electrochemical corrosion after separate manufacturing and subsequent connection of spring tongue 111 and tail clip 121. Using the same stock to form spring tongue 111 and tail clip 121 also reduces the need for fasteners between them, eliminating the need for additional components or complex manufacturing processes during the manufacturing process. This results in a relatively simple manufacturing process and relatively low production costs for the terminal 100 provided herein.

[0064] In some embodiments, in order to further simplify the structure and material of the terminal 100 , the head portion 110 and the tail portion 120 may be configured to be integrally formed from the same blank.

[0065] In a specific solution, the head 110 is at least partially made of a first conductive material; the tail 120 is at least partially made of a second conductive material, so that the conductivity of the conductive part of the head 110 including the spring tongue 111 is relatively consistent, and the conductivity of the conductive part of the tail 120 including the tail clip 121 is relatively consistent, thereby reducing the loss of electric energy during transmission at the terminal 100.

[0066] In a specific embodiment, the first conductive material can be a commonly used copper-containing material, such as copper-nickel-silicon alloy. Copper materials have excellent electrical contact properties, ensuring reliable electrical connection with the first conductor. Conventional copper and brass are similar in material quality, and joining the two can further reduce potential corrosion caused by the significant material difference at the connection between the head 110 and tail 120.

[0067] For example, the first conductive material includes, but is not limited to, copper-nickel-silicon, phosphor bronze, brass, and high-copper alloy.

[0068] In a specific embodiment, the grades of the first conductive material include but are not limited to C7025, C7035, C70260, C5190, C5191, C5210, C5212, C2600, C2620, C2680, C1940 and C1441.

[0069] In some embodiments, the second conductive material includes at least one of aluminum, an aluminum alloy, and brass.

[0070] In a specific scheme, when the second conductive material includes brass, the optional brass grades include but are not limited to CuZn10, CuZn15, CuZn20, CuZn30, CuZn35, CuZn37, CuZn35Pb1, CuZn34Pb2, CuZn40, CuZn37Pb2, CuZn36Pb3, CuZn38Pb2, CuZn39Pb3, CuZn40Pb2, CuZn28Sn1, and CuZn20Al2.

[0071] In a specific embodiment, when the second conductive material includes an aluminum alloy, the grades of the aluminum alloy that can be selected include, but are not limited to, 1 series, 3 series, 6 series, and 7 series. In a more specific embodiment, the specific grades of the 1 series aluminum alloy that can be selected include, but are not limited to, 1050, 1060, 1070, 1080, 1090, and 1100. The specific grades of the 3 series aluminum alloy that can be selected include, but are not limited to, 3003 and 3004. The specific grades of the 6 series aluminum alloy that can be selected include, but are not limited to, 6061, 6063, and 6005. The specific grades of the 7 series aluminum alloy that can be selected include, but are not limited to, 7075, 7050, 7049, and 7005.

[0072] In a specific embodiment, the second conductive material is brass, for example. Brass has good crimping properties with aluminum conductors, enabling reliable crimping electrical connections. In a more specific embodiment, the molar ratio of copper atoms to zinc atoms in brass can range from 1:40 to 1:12.

[0073] It is understood that, based on the inventive concept of this application, the first conductive material and the second conductive material should be different. For example, when one of the first conductive material and the second conductive material is brass, the other of the first conductive material and the second conductive material is no longer brass.

[0074] In some embodiments, the head 110 includes a retaining cavity 112. Retaining cavity 112 is used to accommodate the first conductor. The inner wall of retaining cavity 112 is formed to limit the movement of the first conductor. A spring tongue 111 at least partially extends into retaining cavity 112 to further retain the first conductor during insertion into retaining cavity 112, reducing movement and thereby improving the stability of the connection between the first conductor and the terminal 100.

[0075] In some embodiments, one end of the spring tongue 111 is integrally formed with the head 110, and the other end is movably disposed within the retaining cavity 112. Thus, during the insertion of the first conductor into the retaining cavity 112, the end of the spring tongue 111 that is movable relative to the head 110 can deform, thereby allowing the first conductor to pass smoothly through the retaining cavity 112. The spring tongue 111 also retains the first conductor in position due to its elasticity. For example, if the first conductor is a mating terminal, the mating terminal is inserted into the retaining cavity 112 and is squeezed by the spring tongue 111 to secure it within the retaining cavity 112.

[0076] In some embodiments, the tail clip 121 includes a wire crimping wing 121a. The wing 121a is located at the end of the head portion 110 away from the tail portion 120 and is used to position the second conductor. For example, if the second conductor is an aluminum wire, the insulation at one end of the aluminum wire contacts the wing 121a. When an external force acts on the wing 121a, the wing 121a deforms and applies pressure to the aluminum wire, thereby securing the aluminum wire to the tail clip 121 through crimping.

[0077] In some embodiments, the tail clip 121 further includes conductor crimping wings 121b. These wings are positioned between the head 110 and the harness crimping wings 121a and are used to secure the second conductor. For example, if the second conductor is an aluminum wire, the conductive core at one end of the aluminum wire is positioned by the head 110 and contacts the conductor crimping wings 121b. When an external force acts on the conductor crimping wings 121b, the wings deform and apply pressure to the aluminum wire, thereby securing the aluminum wire to the tail clip 121 through crimping.

[0078] In some embodiments, the conductor crimping wings 121 b are provided with a crimping structure for contacting the second conductor to fix the second conductor.

[0079] In a specific solution, the crimping structure can be configured as a protrusion protruding from the surface of the conductor crimping wing 121 b , and the protrusion applies pressure to the second conductor to enhance the connection strength between the second conductor and the tail clip 121 .

[0080] Reference Figure 2 As shown, in other specific solutions, the crimping structure can also be configured as a plurality of grooves 121c formed on the surface of the conductor crimping wing 121b, and the grooves 121c are used for the second conductor to be embedded in order to fix the second conductor. The grooves 121c can be, for example, serrated, and can be used to enhance the connection strength between the two during the process of the conductor crimping wing 121b crimping the second conductor. The surface of the conductor crimping wing 121b is designed to be a serrated groove 121c, which pierces the oxide film on the surface of the aluminum wire through the serrations and increases the compression ratio of the cross section of the aluminum wire, so that the contact surface between the aluminum material and the inner copper material of the terminal 100 produces a cold welding effect, thereby increasing the contact area between the aluminum and copper, reducing the resistance, and improving the mechanical properties. The design of the grooves 121c is also used to accommodate the aluminum wire that is punctured and deformed, so that the aluminum wire is in closer contact with the conductor crimping wing 121b.

[0081] In some embodiments, the tail portion 120 includes a connecting portion 122. The connecting portion 122 is at least partially connected between the wire crimping wings 121a and the conductor crimping wings 121b. It is understood that another portion of the connecting portion 122 may be further formed between the conductor crimping wings 121b and the head portion 110, so that the head portion 110, the wire crimping wings 121a, the conductor crimping wings 121b, and the connecting portion 122 are integrally formed.

[0082] In a specific solution, the connecting portion 122 is formed with a receiving groove 122a, which is used to receive the second conductor, so as to provide a limit for the second conductor during crimping and use of the second conductor, reduce the shaking of the second conductor and improve the connection stability.

[0083] In some embodiments, the accommodating groove 122a is connected to the limiting cavity 112, so that one end of the first conductor inserted into the limiting cavity 112 can extend out of the limiting cavity 112. In some cases, it can ensure that the length of the part where the first conductor is connected to the terminal 100 meets the usage requirements.

[0084] In some embodiments, the terminal 100 further includes: a terminal strip 130. The terminal strip 130 is arranged at one end of the tail 120 away from the head 110; the terminal strip 130 and the tail 120 are integrally formed. The terminal strip 130 can be used as a positioning structure for arranging multiple terminals 100 during transportation, which can facilitate the transportation of the terminal 100. In a specific solution, a positioning hole 131 is provided on the terminal strip 130. The positioning hole 131 passes through the terminal strip 130. For example, during transportation, an external rope, rod, etc. can be used to pass through the positioning hole 131 to connect multiple terminal strips 130 in series, or it can be used as an auxiliary positioning wire when crimping the second conductor.

[0085] It is understandable that after the second conductor is crimped onto the terminal 100 , the terminal strip 130 can be cut off to reduce space occupation.

[0086] Reference Figure 3 As shown, the terminal strip 130 is the residual material formed during the processing of the terminal 100, which is used to stamp the blank of the terminal 100. The blank is formed into a strip, for example, and the strip-shaped blank is wound on a material tray 20. During processing, the excess material on the blank is removed by cutting or other methods, and the remaining blank is stamped to form the shape of the terminal 100 on the strip-shaped blank. The formed terminal 100 is then cut from the strip-shaped blank to obtain the terminal 100 with the terminal strip 130. After the terminal strip is used to achieve the corresponding function during transportation and crimping, the terminal strip 130 is then cut away.

[0087] According to the second aspect of this application, referring to Figure 4 As shown, the present application further provides an electrical connection structure 200 , including the aforementioned terminal 100 , a first conductor 210 , and a second conductor 220 .

[0088] It can be understood that the first conductor 210 and the second conductor 220 are electrically connected via the terminal 100 .

[0089] In some embodiments, the first conductor 210 is configured as a mating terminal. In some specific solutions, the mating terminal and the terminal 100 are combined to form a plug that can be used to be combined with an external socket, so that the second conductor 220 is electrically connected to the plug through the terminal and the first conductor.

[0090] In some embodiments, the second conductor 220 is configured as an aluminum wire.

[0091] It is understandable that the electrical connection structure 200 has all the beneficial effects of the terminal 100 , which will not be described in detail in this application.

[0092] According to the third aspect of this application, referring to Figure 5As shown, the present application further provides a vehicle 1, which includes the aforementioned terminal 100, or includes the aforementioned electrical connection structure. The terminal 100 or the electrical connection structure can be used, for example, as a connection point for electrically connecting electronic components in the vehicle, such as an onboard controller, an onboard display, an onboard audio system, a motor, and the like. The vehicle has all the beneficial effects of the aforementioned terminal 100 or the electrical connection structure, and this application will not elaborate on them here.

[0093] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0094] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0095] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0096] The above are merely preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A terminal (100) for connecting a first conductor and a second conductor, characterized in that: include: A head (110) having a spring tongue (111) for elastically contacting the first conductor; a tail portion (120) having a tail clip (121) for fixing the second conductor; The spring tongue (111) is made of at least a first conductive material; the tail clip (121) is made of at least a second conductive material; and the spring tongue (111) and the tail clip (121) are integrally formed from the same blank.

2. The terminal (100) according to claim 1, characterized in that The head portion (110) and the tail portion (120) are integrally formed from the same blank.

3. The terminal (100) according to claim 2, characterized in that The head portion (110) is at least partially made of the first conductive material; and the tail portion (120) is at least partially made of the second conductive material.

4. The terminal (100) according to claim 3, characterized in that The first conductive material includes at least one of copper-nickel-silicon, phosphor bronze, brass, and high-copper alloy.

5. The terminal (100) according to claim 4, characterized in that The brand of the first conductive material includes at least one of C7025, C7035, C70260, C5190, C5191, C5210, C5212, C2600, C2620, C2680, C1940, and C1441.

6. The terminal (100) according to claim 3, characterized in that The second conductive material includes at least one of aluminum, aluminum alloy, and brass.

7. The terminal (100) according to claim 6, characterized in that The grades of the second conductive material include at least one of CuZn10, CuZn15, CuZn20, CuZn30, CuZn35, CuZn37, CuZn35Pb1, CuZn34Pb2, CuZn40, CuZn37Pb2, CuZn36Pb3, CuZn38Pb2, CuZn39Pb3, CuZn40Pb2, CuZn28Sn1, and CuZn20Al2.

8. The terminal (100) according to any one of claims 1 to 7, characterized in that: The head (110) comprises: A limiting cavity (112) for accommodating the first conductor; Wherein, the spring tongue (111) at least partially extends into the limiting cavity (112).

9. The terminal (100) according to claim 8, characterized in that One end of the spring tongue (111) is integrally formed with the head (110), and the other end is movably arranged in the limiting cavity (112).

10. The terminal (100) according to any one of claims 1 to 7, characterized in that: The tail clip (121) comprises: A wire harness crimping wing (121a) is provided at an end of the tail portion (120) away from the head portion (110) and is used to limit the second conductor.

11. The terminal (100) according to claim 10, characterized in that The tail clip (121) further comprises: A conductor crimping wing (121b) is provided between the head (110) and the harness crimping wing (121a) and is used to fix the second conductor.

12. The terminal (100) according to claim 11, characterized in that The surface of the conductor crimping wing (121b) is provided with a crimping structure for contacting the second conductor to fix the second conductor.

13. The terminal (100) according to claim 12, characterized in that The crimping structure is configured as a plurality of grooves (121c) formed on the surface of the conductor crimping wings (121b), and is used for the second conductor to be embedded therein so as to fix the second conductor.

14. The terminal (100) according to claim 11, characterized in that The tail portion (120) includes: A connecting portion (122) is at least partially connected between the wire harness crimping wing (121a) and the conductor crimping wing (121b); Wherein, the head (110), the wire harness crimping wing (121a), the conductor crimping wing (121b) and the connecting portion (122) are integrally formed.

15. The terminal (100) according to claim 14, characterized in that The connecting portion (122) is formed with a receiving groove (122a) for receiving the second conductor.

16. The terminal (100) according to claim 15, characterized in that The head (110) comprises: A limiting cavity (112) for accommodating the first conductor; Wherein, the accommodating groove (122a) is communicated with the limiting cavity (112).

17. The terminal (100) according to any one of claims 1 to 7, characterized in that: Also includes: A terminal strip (130) is provided at an end of the tail portion (120) away from the head portion (110); Wherein, the terminal strip and the tail portion (120) are integrally formed.

18. The terminal (100) according to claim 17, characterized in that The terminal strip (130) is provided with a positioning hole (131).

19. An electrical connection structure (200), characterized in that: comprising the terminal (100) according to any one of claims 1 to 16, the first conductor (210) and the second conductor (220); The first conductor (210) is fixedly connected to the head (110) of the terminal (100); and the second conductor (220) is fixedly connected to the tail (120) of the terminal (100).

20. The electrical connection structure (200) according to claim 19, characterized in that: The first conductor (210) is configured as a mating terminal.

21. The electrical connection structure (200) according to claim 19, characterized in that: The second conductor (220) is configured as an aluminum wire.

22. A vehicle (1), characterized in that It comprises the terminal (100) according to any one of claims 1 to 18, or comprises the electrical connection structure (200) according to any one of claims 19 to 21.

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