male terminal

Abstract

The utility model discloses a male terminal, including the insulating inner core and the tubular conductive body of setting on the inner core, wherein, the peripheral place of the pipe wall of the body is fixedly provided with the insulating first flange near the connecting line end, the part of the pipe wall of the body is provided with through -hole being covered by the first flange, the material of the inner core extends through the through -hole, and the material of the first flange forms an integral whole. According to the male terminal of the utility model, under the premise of guaranteeing product conductivity, connection and other core functions, production cost is reduced, material utilization is improved, protection cap design is optimized, and practicality and reliability are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of connectors, and specifically to a male terminal for connectors. Background Technology

[0002] In the field of power transmission and charging connections, male charging terminals, as key components for achieving circuit conduction, are widely used in various electronic devices, new energy vehicles, and industrial power supply systems (such as mainstream products like GB DC terminals). The structural design of male terminals directly affects product reliability, cost, and user experience, thus attracting significant attention within the industry. Existing charging male terminals suffer from the following problems: material waste and high cost. Conventional terminals often employ solid or excessively redundant metal structures, resulting in low actual utilization of metal materials while meeting basic conductivity requirements, leading to high material waste. Furthermore, complex processing techniques (such as multiple cutting and forging processes) further increase production time and manufacturing costs, limiting the market competitiveness of end products. Additionally, terminal heads typically have protective caps, but the design of these caps at the terminals often has flaws: in existing structures, improper assembly methods frequently lead to issues such as detachment and loosening. Moreover, under long-term use or high-load charging scenarios, the contact area between the protective cap and the terminal body is prone to ablation due to electric arcs or high temperatures, affecting not only the product's appearance but also potentially causing a decrease in insulation performance and posing safety hazards. On the other hand, existing male terminal designs struggle to optimize materials and processes while ensuring core functions such as airtightness and assembly stability. Some products employ overly complex sealing structures in pursuit of high sealing performance, further increasing costs; while low-cost solutions fail to meet product durability and safety requirements, making it difficult to satisfy customers' dual demands for high performance and economy. To address these issues, the industry urgently needs a new charging male terminal structure that can balance material utilization, manufacturing costs, and functional reliability to meet the needs of existing technologies. Utility Model Content

[0003] In order to overcome the above-mentioned or other defects in the prior art, this utility model proposes a male terminal for a connector.

[0004] According to one aspect of the present invention, a male terminal is provided, comprising an insulating inner core and a tubular conductive body sleeved on the inner core, wherein an insulating first flange is fixedly provided on the outer periphery of the tube wall of the body near the connecting end, and a through hole is provided on the portion of the tube wall of the body covered by the first flange, wherein the material of the inner core extends through the through hole and forms an integral part with the material of the first flange.

[0005] In one exemplary embodiment, the inner core is an elastomer that completely fills the internal cavity of the tubular body.

[0006] In an exemplary embodiment, an insulating second flange is fixedly provided on the periphery of the tube wall of the body near the connection end, the second flange being closer to the connection end of the tube wall of the body than the first flange.

[0007] In an exemplary embodiment, the portion of the tube wall of the body covered by the second flange is provided with the through hole, and the material of the inner core extends through the through hole, forming an integral part with the material of the second flange.

[0008] In an exemplary embodiment, the portion of the pipe wall of the body covered by the second flange is provided with a pipe wall step portion that radially inward along the periphery, wherein the inner circumference of the second flange is provided with a flange step portion, and the pipe wall step portion and the flange step portion cooperate with each other to help fix the second flange.

[0009] In one exemplary embodiment, the inner core, the first flange, and the second flange are made of the same material.

[0010] In one exemplary embodiment, a sealing ring is provided between the first flange and the second flange.

[0011] In one exemplary embodiment, the male terminal further includes a protective cap that engages with the inner core at the end of the body to cover the end of the inner core and the end of the body.

[0012] In an exemplary embodiment, the inner core extends along the axial direction of the body to be flush with the head of the body, wherein the head of the inner core has a central inner core recess, and the bottom of the protective cap has a central cap protrusion, the cap protrusion and the inner core recess being able to cooperate with each other so that the protective cap can be installed on the inner core.

[0013] In one exemplary embodiment, the inner core has an inner core protrusion protruding to the outside of the body, and the protective cap has a cap recess at the center of its bottom. The cap recess and the inner core protrusion can cooperate with each other to allow the protective cap to be mounted on the inner core.

[0014] In an exemplary embodiment, a first groove is provided on the outer periphery of the inner core protrusion near the head of the body, and a sealing ring is provided in the first groove.

[0015] In an exemplary embodiment, the inner periphery of the protective cap at a position opposite to the first groove of the inner core is provided with a second groove, the second groove and the first groove together forming an annular cavity, and the sealing ring is disposed in the annular cavity.

[0016] In one exemplary embodiment, the protective cap is integral with the inner core.

[0017] In one exemplary embodiment, the inner core and the first flange are integrally formed.

[0018] The advantages of the male terminal according to the exemplary embodiment of this utility model are: reduced production costs and improved material utilization. The cavity terminal design (achieved through tubing / cold heading process) significantly reduces the amount of metal material used, thus lowering material costs, while fully meeting the core functions of conductivity and connection. Simultaneously, simplified processing (such as reducing complex cutting or forging steps) further reduces production time and manufacturing costs, achieving a balance between functionality and economy. The optimized protective cap design enhances practicality and reliability. The terminal head is designed using plastic molding, allowing for flexible assembly with the protective cap (welded types can fit externally or internally, while crimped types incorporate O-rings for enhanced performance), meeting customer needs for quick-change protective caps and facilitating maintenance and replacement. Furthermore, this design reduces problems such as protective cap detachment and burning, improving product durability and safety. Furthermore, while ensuring core functions, the design also considers airtightness and assembly requirements. External plastic molding effectively meets the product's airtightness and assembly stability requirements (the press-fit type further enhances airtightness through O-rings). This optimized structure ensures reliability during use. In short, this invention achieves multiple advantages—cost reduction, improved usability, and functional assurance—through structural innovation without affecting the product's core functions.

[0019] Other objects and advantages of the present invention will become apparent from the following description of the invention with reference to the accompanying drawings, and will help to provide a comprehensive understanding of the invention. Attached Figure Description

[0020] Figure 1 A perspective view of a male terminal according to an exemplary embodiment of the present invention is shown;

[0021] Figure 2 A cross-sectional view of a male terminal according to an exemplary embodiment of the present invention is shown;

[0022] Figure 3 A cross-sectional view of a protective cap portion of a male terminal according to an exemplary embodiment of the present invention is shown;

[0023] Figure 4 A cross-sectional view of another protective cap portion of the male terminal according to an exemplary embodiment of the present invention is shown;

[0024] Figure 5 A perspective view of a male terminal according to another exemplary embodiment of the present invention is shown;

[0025] Figure 6 A cross-sectional view of a male terminal according to another exemplary embodiment of the present invention is shown;

[0026] Figure 7 A cross-sectional view of a protective cap portion of a male terminal according to another exemplary embodiment of the present invention is shown; and

[0027] Figure 8 A cross-sectional view showing another protective cap portion of the male terminal according to another exemplary embodiment of the present invention. Specific Implementation

[0028] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. In this specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of this utility model with reference to the accompanying drawings is intended to explain the overall inventive concept of this utility model and should not be construed as a limitation thereof.

[0029] Furthermore, in the following detailed description, numerous specific details are set forth for ease of explanation to provide a thorough understanding of the embodiments disclosed herein. However, it will be apparent that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and apparatuses are illustrated to simplify the figures.

[0030] According to a general technical concept of the present invention, a male terminal is provided, comprising an insulating inner core and a tubular conductive body sleeved on the inner core, wherein an insulating first flange is fixedly provided on the outer periphery of the tube wall of the body near the connecting end, and a through hole is provided on the portion of the tube wall of the body covered by the first flange, wherein the material of the inner core extends through the through hole and forms an integral part with the material of the first flange.

[0031] The male terminal of this utility model reduces production costs, improves material utilization, optimizes the design of the protective cap, and enhances practicality and reliability while ensuring the core functions of the product such as conductivity and connection.

[0032] Figure 1 A perspective view of a male terminal 1 according to an exemplary embodiment of the present invention is shown; Figure 2 A cross-sectional view of the male terminal 1 according to an exemplary embodiment of the present invention is shown. Figure 5 A perspective view of the male terminal 1 according to another exemplary embodiment of the present invention is shown; Figure 6A cross-sectional view of the male terminal 1 according to another exemplary embodiment of the present invention is shown.

[0033] like Figure 2 and Figure 6 As shown, the male terminal 1 according to this utility model includes an insulating inner core 11 and a tubular conductive body 12 sleeved on the inner core 11. An insulating first flange 13 is fixedly provided on the outer periphery of the tube wall of the body 12 near the connecting end. The portion of the tube wall of the body 12 covered by the first flange 13 is provided with a through hole 14. The material of the inner core 11 extends through the through hole 14 and forms an integral part with the material of the first flange 13.

[0034] As shown in the figure, the portion of the tube wall of the body 12 covered by the first flange 13 has two through holes 14, which are opposite each other along the diameter direction of the tube wall. Those skilled in the art will understand that the number of through holes 14 is not limited to this, but can be more or less, as long as the material between the inner core 11 and the first flange 13 is integrally formed.

[0035] Typically, the tubular conductive body 12 is manufactured using a tube / cold heading process and employs a cavity terminal design. This significantly reduces the amount of metal used and lowers material costs while fully meeting the core functions of conductivity and connection. The insulating inner core 11 fills the gaps within the tube of the body 12, ensuring conductivity while also meeting airtightness and assembly requirements. Furthermore, the internal filling and external plastic molding process allow the terminal's inner core 11 and external mounting flange to be formed in a single step, effectively meeting the product's airtightness and assembly stability requirements. This optimized structure ensures reliability during use.

[0036] The inner core 11 is an elastomer that completely fills the internal cavity of the tubular body 12.

[0037] like Figure 1 and Figure 5 As shown, an insulating second flange 15 is fixedly provided on the outer periphery of the tube wall of the body 12 near the connecting end. The second flange 15 is closer to the connecting end of the tube wall of the body 12 than the first flange 13. A sealing ring 16 is provided between the first flange 13 and the second flange 15.

[0038] The first flange 13, the second flange 15, and the sealing ring 16 of the body 12 form the mounting assembly of the male terminal 1.

[0039] like Figure 2As shown, the portion of the pipe wall of the body 12 covered by the second flange 15 is provided with a radially inwardly tapering pipe wall step portion 121 along its periphery. The inner circumference of the second flange 15 is provided with a flange step portion 151. The pipe wall step portion 121 and the flange step portion 151 cooperate with each other to help fix the second flange 15. Those skilled in the art will understand that the method of fixing the second flange 15 is not limited to this, but can be in various ways. For example, an annular groove can be provided on the pipe wall of the body 12, and the second flange 15 can be fitted into the annular groove.

[0040] In one exemplary embodiment, the inner core 11, the first flange 13, and the second flange 15 are made of the same material.

[0041] like Figure 1 and Figure 2 As shown, in an exemplary embodiment of the present invention, the male terminal 1 has a flat, sheet-like connection end that is connected to a cable by welding.

[0042] like Figure 5 and Figure 6 As shown, according to an exemplary embodiment of the present invention, the body 12 of the male terminal 1 is generally tubular, and the external insulating flange is sleeved on the part of the terminal near the connection end. At the same time, it is integrated with the insulating inner core 11 inside the tube of the body 12 through the through hole 14. The terminal is connected to the cable by crimping.

[0043] like Figure 6 As shown, the portion of the tube wall of the body 12 covered by the second flange 15 is provided with the through hole 14, and the material of the inner core 11 extends through the through hole 14 and forms an integral part with the material of the second flange 15.

[0044] As shown in the figure, the portion of the tube wall of the body 12 covered by the second flange 15 has two through holes 14, which are opposite each other along the diameter direction of the tube wall. Those skilled in the art will understand that the number of through holes 14 is not limited to this, but can be more or less, as long as the material between the inner core 11 and the second flange 15 is integrally formed.

[0045] As shown in the figure, the through holes 14 provided in the portion of the pipe wall covered by the first flange 13 and the through holes 14 provided in the portion of the pipe wall covered by the second flange 15 are aligned along the generatrix direction of the pipe wall. Those skilled in the art will understand that the through holes 14 provided in the portion of the pipe wall covered by the first flange 13 and the through holes 14 provided in the portion of the pipe wall covered by the second flange 15 may not be aligned along the generatrix direction of the pipe wall.

[0046] In this way, through the internal filling and external plastic molding process of the tube body, the inner core 11 of the terminal and all the external mounting flanges can be formed in one piece, which effectively meets the requirements of the product's airtightness and assembly stability, and ensures reliability during use while optimizing the structure.

[0047] In one exemplary embodiment, the male terminal further includes a protective cap that engages with the inner core at the end of the body to cover the end of the inner core and the end of the body.

[0048] Figure 3 A cross-sectional view of a protective cap 17 portion of a male terminal 1 according to an exemplary embodiment of the present invention is shown; Figure 4 A cross-sectional view of another protective cap 17 portion of the male terminal 1 according to an exemplary embodiment of the present invention is shown. Figure 7 A cross-sectional view of a protective cap 17 portion of the male terminal 1 according to another exemplary embodiment of the present invention is shown; and Figure 8 A cross-sectional view of another protective cap 17 portion of the male terminal 1 according to another exemplary embodiment of the present invention is shown.

[0049] like Figure 3 As shown, the male terminal 1 also includes a protective cap 17. The inner core 11 extends along the axial direction of the body 12 to be flush with the head of the body 12. The head of the inner core 11 has an inner core recess 111 at its center, and the bottom of the protective cap 17 has a cap protrusion 171 at its center. The cap protrusion 171 and the inner core recess 111 can cooperate with each other so that the protective cap 17 can be installed on the inner core 11. The protective cap 17 covers the end of the inner core 11 and the end of the body 12.

[0050] The optimized design of the protective cap 17 according to this utility model improves the practicality and reliability of the protective cap 17. The terminal head is shaped by the plastic molding of the inner core 11, which can be flexibly assembled with the protective cap 17 to meet the customer's need for quick replacement of the protective cap 17, making maintenance and replacement convenient. At the same time, this design reduces problems such as the protective cap 17 falling off and burning, and improves the durability and safety of the product.

[0051] like Figure 4-8As shown, the male terminal 1 may also include another type of protective cap 17. The inner core 11 has an inner core protrusion 112 protruding to the outside of the body 12. The protective cap 17 has a cap recess 172 at the center of its bottom. The cap recess 172 and the inner core protrusion 112 can cooperate with each other so that the protective cap 17 is installed on the inner core 11. The protective cap 17 covers the end of the inner core 11 and the end of the body 12.

[0052] like Figure 7 and Figure 8 As shown, according to another exemplary embodiment of the present invention, the male terminal 1 has a first groove 1121 on the outer periphery of the inner core protrusion 112 near the head of the body 12, and a sealing ring 16 is provided in the first groove 1121.

[0053] like Figure 8 As shown, in another exemplary embodiment, the inner periphery of the protective cap 17, which is opposite to the first groove 1121 of the inner core 11, is provided with a second groove 173. The second groove 173 and the first groove 1121 together form an annular cavity, and the sealing ring 16 is disposed in the annular cavity.

[0054] The protective cap is integral with the inner core 11.

[0055] In one exemplary embodiment, the inner core 11 and the first flange 13 are integrally formed.

[0056] The advantages of the male terminal according to the exemplary embodiment of this utility model are: reduced production costs and improved material utilization. The cavity terminal design (achieved through tubing / cold heading process) significantly reduces the amount of metal material used, thus lowering material costs, while fully meeting the core functions of conductivity and connection. Simultaneously, simplified processing (such as reducing complex cutting or forging steps) further reduces production time and manufacturing costs, achieving a balance between functionality and economy. The optimized protective cap design enhances practicality and reliability. The terminal head is designed using plastic molding, allowing for flexible assembly with the protective cap (welded types can fit externally or internally, while crimped types incorporate O-rings for enhanced performance), meeting customer needs for quick-change protective caps and facilitating maintenance and replacement. Furthermore, this design reduces problems such as protective cap detachment and burning, improving product durability and safety. Furthermore, while ensuring core functions, the design also considers airtightness and assembly requirements. External plastic molding effectively meets the product's airtightness and assembly stability requirements (the press-fit type further enhances airtightness through O-rings). This optimized structure ensures reliability during use. In short, this invention achieves multiple advantages—cost reduction, improved usability, and functional assurance—through structural innovation without affecting the product's core functions.

[0057] Those skilled in the art will understand that the embodiments described above are exemplary and can be improved upon. The structures described in the various embodiments can be freely combined without causing any conflict in structure or principle.

[0058] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to illustrate preferred embodiments of the present invention and should not be construed as a limitation thereof.

[0059] While some embodiments of the present general inventive concept have been shown and described, those skilled in the art will understand that changes may be made to these embodiments without departing from the principles and spirit of the present general inventive concept, the scope of which is defined by the claims and their equivalents.

[0060] It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude multiple elements. Furthermore, any reference numerals in the claims should not be construed as limiting the scope of this invention.

Claims

1. A male terminal (1), characterized in that, The device includes an insulating inner core (11) and a tubular conductive body (12) sleeved on the inner core (11). An insulating first flange (13) is fixedly provided on the outer periphery of the tube wall of the body (12) near the connecting end. A through hole (14) is provided on the portion of the tube wall of the body (12) covered by the first flange (13). The material of the inner core (11) extends through the through hole (14) and forms an integral part with the material of the first flange (13).

2. The male terminal (1) according to claim 1, characterized in that, The inner core (11) is an elastomer that completely fills the internal cavity of the tubular body (12).

3. The male terminal (1) according to claim 1 or 2, characterized in that, An insulating second flange (15) is fixedly provided on the outer periphery of the tube wall of the body (12) near the connection end. The second flange (15) is closer to the connection end of the tube wall of the body (12) than the first flange (13).

4. The male terminal (1) according to claim 3, characterized in that, The portion of the tube wall of the body (12) covered by the second flange (15) is provided with the through hole (14), and the material of the inner core (11) extends through the through hole (14) and forms an integral part with the material of the second flange (15).

5. The male terminal (1) according to claim 3, characterized in that, The portion of the pipe wall of the body (12) covered by the second flange (15) is provided with a pipe wall step portion (121) that is radially recessed along the periphery, wherein the inner periphery of the second flange (15) is provided with a flange step portion (151), and the pipe wall step portion (121) and the flange step portion (151) cooperate with each other to help fix the second flange (15).

6. The male terminal (1) according to claim 3, characterized in that, The inner core (11), the first flange (13), and the second flange (15) are made of the same material.

7. The male terminal (1) according to claim 3, characterized in that, A sealing ring (16) is provided between the first flange (13) and the second flange (15).

8. The male terminal (1) according to claim 4, characterized in that, The male terminal (1) also includes a protective cap (17), which engages with the inner core (11) at the end of the body (12) to cover the end of the inner core (11) and the end of the body (12).

9. The male terminal (1) according to claim 8, characterized in that, The inner core (11) extends along the axial direction of the body (12) to be flush with the head of the body (12), wherein the head of the inner core (11) has an inner core recess (111) at the center, and the bottom of the protective cap (17) has a cap protrusion (171) at the center. The cap protrusion (171) and the inner core recess (111) can cooperate with each other so that the protective cap (17) can be installed on the inner core (11).

10. The male terminal (1) according to claim 8, characterized in that, The inner core (11) has an inner core protrusion (112) protruding to the outside of the body (12), and the protective cap (17) has a cap recess (172) at the center of the bottom. The cap recess (172) and the inner core protrusion (112) can cooperate with each other so that the protective cap (17) can be installed on the inner core (11).

11. The male terminal (1) according to claim 10, characterized in that, The outer periphery of the inner core protrusion (112) near the head of the body (12) is provided with a first groove (1121), and a sealing ring (16) is provided in the first groove (1121).

12. The male terminal (1) according to claim 11, characterized in that, The protective cap (17) has a second groove (173) on its inner periphery opposite to the first groove (1121) of the inner core (11). The second groove (173) and the first groove (1121) together form an annular cavity, and the sealing ring (16) is disposed in the annular cavity.

13. The male terminal (1) according to claim 8, characterized in that, The protective cap (17) is integrated with the inner core (11).

14. The male terminal (1) according to claim 1, characterized in that, The inner core (11) and the first flange (13) are integrally formed.

Images