Outgoing line structure and device of large-current automobile charging port

Abstract

The invention provides a wire outlet structure of a large-current automobile charging port. The wire outlet structure comprises a first shell and a second shell which cover each other. The first shell is provided with a first accommodating cavity and a wire outlet communicated with the first accommodating cavity; a charging port is formed in the end face, deviating from the first shell, of the second shell in the first direction. The electrical connection assembly comprises a terminal and a cable, the terminal comprises a charging part and a wiring part which are arranged in sequence, and the cable penetrates through the wire outlet and extends out of the first accommodating cavity to be welded to the end, away from the charging part, of the wiring part; the fixing assembly comprises a fixing piece and a connecting plate, the fixing piece crimps the terminal and is fixedly connected with the connecting plate, and the electrical connecting assembly is fixed into a whole and assembled into the charging port in the first direction. According to the wire outlet structure of the charging port, the cable penetrates through the wire outlet and is welded to the wiring parts of the terminals, and the multiple welded terminals and the connecting plate are fixed into a whole through the fixing piece, so that the whole assembly can be assembled into the charging port at a time, and the assembly efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of new energy vehicle charging technology, and in particular to a wire outlet structure and device for a high-current vehicle charging port. Background Art

[0002] With the widespread use of new energy vehicles, the design and performance of the car charging port, as a key component connecting electric vehicles and charging equipment, has become extremely important. Currently, most mainstream car charging ports on the market use the method of cable outlet downward to reduce cable bending and exposed length, and improve the overall aesthetics and ease of use of the charging port.

[0003] At present, the common outlet structure of automobile charging ports on the market mainly includes fixing the cable to the charging port terminal by bending the cable or crimping the wire ear. The crimping wire ear method is to connect the cable and the terminal by crimping the wire ear and screwing it. This method forms an electrical connection by crimping the wire ear to the cable and then fixing the wire ear to the terminal with screws to provide reliable electrical contact; the second solution is to directly bend the cable to outlet downward, directly connecting the terminal and the cable without an intermediate component, which can reduce the use of intermediate components.

[0004] However, the connection method of crimping wire ears and screw locking is adopted, and the complex locking structure is used to fix the cable, which leads to a cumbersome assembly process, multiple processes and a long time. In addition, the wire ears and screw fixing structures themselves occupy a certain space, especially the wire ears are thick, and after being fixed with screws, more assembly space needs to be reserved as a whole; directly bending the cable to lead it downward requires a sufficient bending radius during the bending process to avoid cable damage. Since the cable needs to extend directly from the terminal, and then bend and fix it, it requires additional space to accommodate the extension length of the straight section and the position after bending, and requires a longer copper busbar, resulting in high cost. Therefore, a car charging port structure that can simplify the assembly process is provided to solve the above problems. Summary of the invention

[0005] In view of this, it is necessary to provide a wiring structure and device for a car charging port that can simplify the assembly process to solve the above problems.

[0006] The embodiment of the present application provides a wire outlet structure of a high-current automobile charging port, comprising a first shell and a second shell covering each other;

[0007] The first housing is provided with a first accommodating cavity and a wire outlet communicating with the first accommodating cavity;

[0008] The direction of the first shell toward the second shell is defined as a first direction, and the end surface of the second shell facing away from the first shell is provided with a charging port along the first direction;

[0009] An electrical connection assembly, comprising a terminal and a cable, wherein the terminal comprises a charging portion and a wiring portion arranged in sequence, and the cable passes through the cable outlet and extends out of the first accommodating cavity to be welded to an end of the wiring portion away from the charging portion;

[0010] The fixing assembly includes a fixing part and a connecting plate, wherein the fixing part crimps the terminal to fix the terminal with the connecting plate, and the fixing assembly is used to fix the electrical connection assembly into a whole and assemble it into the charging port along the first direction.

[0011] In at least one embodiment of the present application, the terminal further includes a fixing portion, the fixing portion is disposed between the charging portion and the wiring portion, and the fixing portion extends outward along the circumference of the wiring portion to form a fixing surface;

[0012] The fixing member comprises a body and a crimping portion which are integrally formed, the body being fixedly connected to the connecting plate, a side of the connecting plate which is away from the body being fixedly connected to the terminal, and the crimping portion being in contact with the fixing surface.

[0013] In at least one embodiment of the present application, the fixing member further includes a first engaging groove, the terminal includes a positive terminal, a negative terminal and a ground terminal, and the crimping portions are both in contact with the fixing surfaces of the positive terminal and the negative terminal;

[0014] The grounding terminal further comprises a second engaging groove which engages with the first engaging groove. The second engaging groove is annularly arranged on the outer peripheral surface of the fixing portion and is used to fix the positive terminal, the negative terminal and the grounding terminal into a whole.

[0015] In at least one embodiment of the present application, the second housing has a socket connected to the charging port starting along the first direction, and the second housing further includes a limit block, and the limit block is provided on a side of the socket close to the terminal;

[0016] The terminal further comprises a limiting groove, wherein the limiting groove is arranged on the peripheral surface of the fixing portion, the bottom surface of the limiting groove is perpendicular to the fixing surface, and the limiting block is fitted in the limiting groove.

[0017] In at least one embodiment of the present application, a side of the inner wall of the jack close to the terminal is outwardly recessed to form a step surface, a peripheral surface of the terminal extends outward to form a boss, the boss and the fixing portion enclose a sealing groove, and the boss abuts against the step surface;

[0018] The electrical connection assembly further includes a first sealing member, which is disposed in the sealing groove and is interference-fitted with an inner wall of the insertion hole.

[0019] In at least one embodiment of the present application, the connection portion includes an arc portion, the connection portion is provided with a first welding surface, and the arc portion is provided at a corner of the first welding surface;

[0020] The cable is provided with a second welding surface, the second welding surface is attached to and welded to the first welding surface, the central axis of the terminal is defined as a first straight line, the central axis of the cable is defined as a second straight line, and the first straight line and the second straight line are perpendicular to each other.

[0021] In at least one embodiment of the present application, the outlet includes a first outlet end and a second outlet end, and the first outlet end and the second outlet end are both arranged to be inclined downward in a vertical direction;

[0022] When viewed along a first direction, a center line of the first outlet end intersects a center line of the second outlet end.

[0023] In at least one embodiment of the present application, the electrical connection assembly further includes a second seal, the second seal passes through the cable and is sealed at the outlet, and the outlet structure further includes a tail cover;

[0024] The tail cover is snap-connected to the wire outlet, and one end of the second sealing member facing away from the wire outlet abuts against the tail cover.

[0025] In at least one embodiment of the present application, the second shell further includes an insulating wall, and the insulating wall is arranged between the plurality of the jacks along the first direction to isolate electrical interference between the plurality of the terminals.

[0026] A high-current vehicle charging port includes the above-mentioned high-current vehicle charging port outlet structure.

[0027] The above-mentioned high-current car charging port outlet structure and device avoids the use of thick wire ears and screw fixing structures by passing the cable through the outlet and welding it to the terminal connection part. The fixing piece fixes the multiple terminals and the connecting plate after welding into a whole, which allows the entire assembly to be assembled into the charging port at one time, reducing the tedious steps of independently assembling each part and improving assembly efficiency. The electrical connection assembly is better fixed in the shell, the overall structure is more compact, and the use of space is optimized. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional diagram of the outlet structure of a high-current automobile charging port in one embodiment of the present application.

[0029] Figure 2 for Figure 1 A three-dimensional view of the wire outlet structure of a high-current automobile charging port from another perspective.

[0030] Figure 3 for Figure 1 A three-dimensional exploded view of the wire outlet structure of a high-current automobile charging port.

[0031] Figure 4 for Figure 1 A front view of the outlet structure of a high-current automobile charging port.

[0032] Figure 5 for Figure 1 A cross-sectional view of the line outlet structure of a high-current automobile charging port.

[0033] Figure 6 for Figure 1 A cross-sectional view of part B of the outlet structure of a high-current automobile charging port.

[0034] Figure 7 for Figure 1 A cross-sectional view of the C portion of the outlet structure of a high-current automobile charging port.

[0035] Figure 8 for Figure 1 An exploded view of the wire outlet structure of a high-current automobile charging port.

[0036] Fig. 9 for Figure 1 An exploded view of the fixed partial structure of the outlet structure of a high-current automobile charging port.

[0037] Fig.10 for Figure 1 A structural diagram showing the completion of welding of cables and terminals of a high-current automobile charging port outlet structure.

[0038] Fig.11 for Figure 1 A stereoscopic view of the second shell of the outlet structure of a high-current automobile charging port.

[0039] Fig.12 for Figure 1 A three-dimensional view of the first shell of the outlet structure of a high-current automobile charging port.

[0040] Fig.13 for Figure 1 A three-dimensional diagram of the fixing parts of the outlet structure of a high-current automobile charging port.

[0041] Fig.14 for Figure 1 A three-dimensional diagram of the welding of the terminals and cables of the outlet structure of a high-current automobile charging port.

[0042] Fig.15 for Figure 1A three-dimensional diagram of the grounding terminal of the outlet structure of a high-current automobile charging port.

[0043] Main component symbols

[0044] 100. A wire outlet structure for a high-current automobile charging port; 10. First housing; 11. Accommodating cavity; 12. Wire outlet; 121. First wire outlet terminal; 122. Second wire outlet terminal; 20. Second housing; 21. Charging port; 211. Socket; 211a. Step surface; 22. Stop block; 23. Insulating wall; 30. Electrical connection assembly; 31. Terminal; 311. Charging part; 312. Fixing part; 312a. Fixing surface; 313. Wiring part; 313a. First Welding surface; 313b, arc surface; 314, positive terminal; 315, negative terminal; 316, grounding terminal; 316a, second snap-fit ​​groove; 32, cable; 321, second welding surface; 33, limit groove; 34, boss; 35, sealing groove; 36, first sealing member; 37, second sealing member; 40, fixing assembly; 41, fixing member; 411, main body; 412, crimping portion; 413, first snap-fit ​​groove; 42, connecting plate; 50, tail cover; F1, first direction. DETAILED DESCRIPTION

[0045] The embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0046] It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "located on" another component, it may be directly located on the other component or there may be a central component at the same time. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and similar expressions used herein are for illustrative purposes only.

[0047] The embodiment of the present application provides a wire outlet structure of a high-current automobile charging port, comprising a first shell and a second shell covering each other;

[0048] The first housing is provided with a first accommodating cavity and a wire outlet communicating with the first accommodating cavity;

[0049] The direction of the first shell toward the second shell is defined as a first direction, and the end surface of the second shell facing away from the first shell is provided with a charging port along the first direction;

[0050] An electrical connection assembly, comprising a terminal and a cable, wherein the terminal comprises a charging portion and a wiring portion arranged in sequence, and the cable passes through the cable outlet and extends out of the first accommodating cavity to be welded to an end of the wiring portion away from the charging portion;

[0051] The fixing assembly includes a fixing part and a connecting plate, wherein the fixing part crimps the terminal to fix the terminal with the connecting plate, and the fixing assembly is used to fix the electrical connection assembly into a whole and assemble it into the charging port along the first direction.

[0052] The above-mentioned high-current car charging port outlet structure and device avoids the use of thick wire ears and screw fixing structures by passing the cable through the outlet and welding it to the terminal connection part. The fixing piece fixes the multiple terminals and the connecting plate after welding into a whole, which allows the entire assembly to be assembled into the charging port at one time, reducing the tedious steps of independently assembling each part and improving assembly efficiency. The electrical connection assembly is better fixed in the shell, the overall structure is more compact, and the use of space is optimized.

[0053] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0054] See also Figure 1-Figure 15 , an embodiment of the present application provides a high-current car charging port outlet structure 100, including a first shell 10 and a second shell 20 covering each other;

[0055] The first housing 10 is provided with a first accommodating cavity 11 and a wire outlet 12 communicating with the first accommodating cavity 11;

[0056] The direction from the first shell 10 to the second shell 20 is defined as a first direction F1, and the end surface of the second shell 20 facing away from the first shell 10 is provided with a charging port 21 along the first direction F1;

[0057] The electrical connection assembly 30 includes a terminal 31 and a cable 32. The terminal 31 includes a charging portion 311 and a wiring portion 313 arranged in sequence. The cable 32 passes through the outlet 12 and extends out of the first accommodating cavity 11 to be welded to an end of the wiring portion 313 away from the charging portion 311.

[0058] The fixing assembly 40 includes a fixing part 41 and a connecting plate 42 . The fixing part 41 is crimped to fix the terminal 31 with the connecting plate 42 . The fixing assembly 40 is used to fix the electrical connection assembly 30 into a whole and assemble it into the charging port 21 along the first direction F1 .

[0059] Specifically, the first shell 10 and the second shell 20 cover each other to form a closed structure for protecting the internal electrical connection component 30, while providing structural stability to prevent the influence of the external environment on the internal components. A sealing ring is also provided between the two shells. The sealing ring is located at the junction of the first shell 10 and the second shell 20. Through its elastic deformation, it fills the gap between the two shells, which can effectively prevent the entry of external water vapor or dust, and ensure the long-term stable operation of the charging interface. The cable 32 passes through the outlet 12 and is electrically welded to the wiring part 313 of the terminal 31. The cable 32 passes through the outlet 12 and is welded to the wiring part 313 to form an electrical connection loop.

[0060] Furthermore, the cables 32 and the terminals 31 are welded to form multiple parts, and the multiple terminals 31 are fixed into a whole through the connecting plate 42, avoiding the cumbersome steps of installing each component independently in the traditional structure, greatly simplifying the assembly process, and improving the efficiency and accuracy of the overall assembly. This design ensures the stability of the electrical connection component 30, avoids loosening caused by vibration or external force during use, and is particularly suitable for rapid assembly and efficient operation in high current scenarios.

[0061] Furthermore, a low-voltage connection interface is provided at the rear end of the connecting plate 42. The connecting plate 42 connects the terminal 31 with the low-voltage connection interface. The design of the connecting plate 42 simplifies the layout of the internal connection and reduces the space occupied by the additional cables 32 and interfaces, thereby improving the internal space utilization, avoiding complicated cable 32 wiring, and improving reliability. The fixing part 41 fixes the entire electrical connection assembly 30 into a whole by crimping the connecting plate 42 and the terminal 31, ensuring that the assembly will not loosen or shift during assembly and use. This overall fixing design reduces the steps of independently fixing multiple parts during the assembly process and avoids cumbersome operations. It allows the entire assembly to be assembled into the charging port 21 at one time, making each component modular, saving a lot of time and manpower, and improving assembly efficiency.

[0062] Furthermore, the entire electrical connection assembly 30 is directly assembled along the first direction F1 of the charging port 21, avoiding the assembly problems caused by the traditional tilted charging port 21 design. The complicated parts in the traditional assembly require assembly from multiple different directions, and multiple angles need to be aligned during the assembly process, which easily leads to assembly errors and affects stability and sealing. This design makes the assembly of the charging port 21 more direct and smooth, effectively preventing assembly difficulties and time loss caused by tilting.

[0063] In summary, the outlet structure and device avoids the use of thick wire ears and screw fixing structures by passing the cable 32 through the outlet port 12 and welding it to the wiring part 313 of the terminal 31, saving internal space, and the fixing part 41 fixes the multiple terminals 31 and the connecting plate 42 after welding into a whole, so that the entire component can be assembled into the charging port 21 at one time, reducing the tedious steps of independently assembling each part and improving assembly efficiency. The design of assembling the entire component into the charging port 21 in the same direction avoids the need to align the angles from multiple directions, which is prone to assembly errors, simplifies the operation, and ensures smooth and stable assembly.

[0064] In a specific embodiment, the terminal 31 further includes a fixing portion 312, the fixing portion 312 is disposed between the charging portion 311 and the wiring portion 313, and the fixing portion 312 extends outward along the circumference of the wiring portion 313 to form a fixing surface 312a;

[0065] The fixing member 41 includes a body 411 and a crimping portion 412 that are integrally formed. The body 411 is fixedly connected to the connecting plate 42. The side of the connecting plate 42 that is away from the body 411 is fixedly connected to the terminal 31. The crimping portion 412 fits the fixing surface 312a.

[0066] Specifically, the fixing portion 312 is arranged between the charging portion 311 and the wiring portion 313 of the terminal 31, with the purpose of increasing the structural stability in the electrical connection. This part extends outward along the circumference of the wiring portion 313 to form a fixing surface 312a. The fixing surface 312a provides a clear fixing position and surface for the subsequent crimping assembly, so that the fixing part 41 can be accurately fitted and crimped on this surface during the assembly process. As a part of the terminal 31, the fixing portion 312 extends from the fixing surface 312a, so that the structure of the cable 32 and the terminal 31 after welding is more secure.

[0067] Furthermore, after welding is completed, the terminal 31 and the cable 32 have been electrically connected through the wiring portion 313. At this time, the function of the fixing portion 312 is to provide additional mechanical support for the structure of the terminal 31. The fixing portion 312 extends along the circumference of the wiring portion 313 to form a fixing surface 312a, and the fixing member 41 is crimped on the fixing surface 312a to firmly fix the terminal 31 on the connecting plate 42. This structure stabilizes the entire electrical connection assembly 30 and reduces the displacement or loosening of the welding point due to external force, vibration or mechanical stress during subsequent use.

[0068] Furthermore, the fixing portion 312 is located between the charging portion 311 and the wiring portion 313, and it provides an extended fixing surface 312a for crimping of the fixing member 41. The fixing member 41 is in close contact with the fixing surface 312a of the fixing portion 312 through its crimping portion 412, stably fixing the terminal 31 in a position to prevent the terminal 31 from moving or loosening during operation or use. One side of the connecting plate 42 is fixedly connected to the fixing member 41, and the back side is fixed to the terminal 31. In this way, the connecting plate 42 and the fixing member 41 form a clamping structure, which firmly clamps the terminal 31 in the middle to prevent the welding part from being impacted or damaged by external force.

[0069] Furthermore, the clamping structure provides a bidirectional fixing force to prevent the terminal 31 from loosening or shifting. After the terminal 31 is fixed, the entire electrical connection assembly 30 forms a whole and can be assembled into the charging port 21 at one time, which simplifies the operation steps and improves the assembly efficiency. The clamping design of the fixing member 41 and the connecting plate 42 can effectively reduce the external stress directly transmitted to the welding point, thereby improving the long-term stability of the welding.

[0070] In a specific embodiment, the fixing member 41 further includes a first engaging groove 413, the terminal 31 includes a positive terminal 314, a negative terminal 315 and a ground terminal 316, and the crimping portion 412 is attached to the fixing surfaces 312a of the positive terminal 314 and the negative terminal 315;

[0071] The grounding terminal 316 further includes a second engaging groove 316a engaged with the first engaging groove 413. The second engaging groove 316a is annularly arranged on the outer peripheral surface of the fixing portion 312 for fixing the positive terminal 314, the negative terminal 315 and the grounding terminal 316 into a whole.

[0072] Specifically, the first engaging groove 413 is a structure for achieving engagement on the fixing member 41, and its main purpose is to achieve mechanical engagement between the grounding terminal 316 of the terminal 31 and the fixing member 41, so as to fix the positive pole, negative pole and grounding terminal 316 of the terminal 31 on the fixing member 41 together. It provides mechanical strength, ensures the firmness of the terminal 31 in the fixing member 41, and prevents the terminal 31 from loosening or displacement due to vibration or pulling during use. Through the design of the engaging groove, the standardized assembly of the terminal 31 can be achieved, so that the terminal 31 can be quickly and accurately snapped into place during the assembly process, thereby improving the assembly efficiency.

[0073] Furthermore, the second engaging groove 316a increases the stability of the ground terminal 316 through an annular design, ensuring that the ground terminal 316 will not loosen due to external pulling or vibration after assembly. This interlocking structure allows the ground terminal 316 to be firmly fixed in a limited space, ensuring the stability of the overall electrical connection, and facilitating assembly operations and reducing assembly time. The fixing surfaces 312a of the positive terminal 314 and the negative terminal 315 fit tightly with the crimping portion 412 of the fixing member 41, stabilizing the positive and negative terminals 315 in the fixing member 41, forming a stable electrical connection, and enhancing the overall firmness. The first engaging groove 413 of the fixing member 41 and the second engaging groove 316a of the ground terminal 316 of the terminal 31 are interlocked with each other, and the fixing surfaces 312a of the positive terminal 314 and the negative terminal 315 fit tightly with the crimping portion 412 of the fixing member 41, forming a stable overall structure, improving assembly efficiency and structural stability.

[0074] In a specific embodiment, the second housing 20 has a socket 211 connected to the charging port 21 along the first direction F1, and the second housing 20 further includes a limit block 22, which is disposed on a side of the socket 211 close to the terminal 31;

[0075] The terminal 31 further includes a limiting groove 33 , which is formed on the peripheral surface of the fixing portion 312 , and a bottom surface of the limiting groove 33 is perpendicular to the fixing surface 312 a , and the limiting block 22 is attached to the limiting groove 33 .

[0076] Specifically, the socket 211 is a structure for guiding the electrical connection assembly 30 into the charging port 21, providing a path for the terminal 31 to enter the charging port 21. During the assembly process, the terminal 31 assembly is guided into the charging port 21 along the path of the socket 211. The shell provides a stable guide so that the electrical connection assembly 30 can be quickly and accurately docked with the charging interface. The limit block 22 is a structure arranged on the side of the socket 211 close to the terminal 31, and can be regarded as forming a flat hole in combination with the socket 211. The flat hole formed by the limit block 22 is a special mechanical limit design, which limits the freedom of the terminal 31 through its shape to ensure that it can only be inserted in a specified direction without displacement or rotation. The flat hole structure can effectively lock the movement direction of the terminal 31, prevent the terminal 31 from loosening, rotating or deflecting after assembly, and ensure that it always maintains a precise position and posture.

[0077] Furthermore, a positioning groove is provided on the circumference of the fixing portion 312 of the terminal 31, and cooperates with the limiting block 22. During assembly, the limiting groove 33 of the terminal 31 will precisely fit with the limiting block 22 to form a stable mechanical snap-fit ​​structure. The cooperation between the limiting groove 33 and the limiting block 22 provides a dual positioning function, and cooperates with the crimping of the fixing member 41 to stably fix the terminal 31 in the jack 211. The vertical structure can effectively prevent the terminal 31 from twisting or tilting during the installation process, ensuring that the terminal 31 always maintains the correct angle and direction. The vertical limiting design enables a more stable mechanical snap-fit ​​to be formed between the limiting block 22 and the limiting groove 33, and the fixing member 41 can better apply the force to the fixing surface 312a, thereby increasing the overall stability and fixing strength of the terminal 31.

[0078] In a specific embodiment, the inner wall of the plug hole 211 is concave outwardly near the terminal 31 to form a step surface 211a, and the peripheral surface of the terminal 31 extends outwardly to form a boss 34, and the boss 34 and the fixing portion 312 enclose a sealing groove 35, and the boss 34 abuts against the step surface 211a;

[0079] The electrical connection assembly 30 further includes a first sealing member 36 , which is disposed in the sealing groove 35 and is interference-fitted with the inner wall of the insertion hole 211 .

[0080] Specifically, the inner wall of the jack 211 is concave outward on one side close to the terminal 31 to form a step surface 211a, whose main function is to provide a mechanical support point for the terminal 31. The step surface 211a is in contact with the boss 34 of the terminal 31, providing a certain restriction and stabilization effect. When the terminal 31 is inserted into the jack 211, it can be closely matched with the step surface 211a to prevent the terminal 31 from moving inward or outward, ensuring the precise positioning of the terminal 31 in the jack 211. At the same time, the step surface 211a provides a stable support surface, making the mechanical fixation of the terminal 31 more reliable.

[0081] Furthermore, the boss 34 not only provides further support for the mechanical fixation of the terminal 31, but also effectively increases the contact area between the terminal 31 and the jack 211, thereby improving the stability and sealing of the connection. The design of the sealing groove 35 provides a standardized position for the subsequent installation of the seal, ensuring that the seal can effectively isolate external impurities. The first seal 36 is arranged in the sealing groove 35, which can prevent the seal from deviating and moving after assembly. The interference fit design ensures that the seal will not loosen due to vibration or long-term use, thereby improving the durability and sealing effect of the interface.

[0082] In a specific embodiment, the connection portion 313 includes an arc surface portion 313b, the connection portion 313 is provided with a first welding surface 313a, and the arc surface portion 313b is provided at a corner of the first welding surface 313a;

[0083] The cable 32 is provided with a second welding surface 321, which is attached to and welded to the first welding surface 313a, defining the central axis of the terminal 31 as a first straight line, and defining the central axis of the cable 32 as a second straight line, and the first straight line and the second straight line are perpendicular to each other.

[0084] Specifically, the design of the wiring portion 313 includes an arc surface portion 313b, which is generally used to improve the overall mechanical strength and electrical conductivity of the welding area. The arc surface design allows the wiring portion 313 to better disperse the stress applied to the welding point, avoiding welding point failure caused by concentrated stress at the sharp corners. The flat and sufficient contact area between the second welding surface 321 and the first welding surface 313a helps to better weld. Compared with spot welding or local welding, the full fit design of the two planes can ensure that the solder is evenly distributed in the entire welding area, improving the strength and stability of the welding point. The large-area welding plane can reduce the contact resistance of the electrical connection, so that the current passes through the welding point more smoothly, reducing the heat caused by high resistance.

[0085] Furthermore, the central axis of the terminal 31 is perpendicular to the central axis of the cable, that is, the cable 32 and the terminal 31 are welded at 90 degrees. The 90-degree welding reduces the bending radius required for direct bending and avoids the need for additional conversion joints or adapters, thereby reducing the connection steps between components. This not only simplifies the structural design, but also reduces the complexity of assembly, reduces potential failure points, and makes the entire system more concise and efficient.

[0086] Furthermore, this right-angle connection helps maintain better mechanical stability during installation or use, especially in scenarios where frequent plugging and unplugging or vibration is required, which can effectively prevent loosening or solder joint breakage. Due to the full fit between the welding surfaces, this structure provides a large area of ​​electrical contact points, thereby reducing resistance. It can also optimize the current transmission path and greatly improve the current carrying capacity. Large-area welding surfaces help carry larger currents and reduce heating or overload problems caused by excessive resistance.

[0087] In a specific embodiment, the outlet 12 includes a first outlet end 121 and a second outlet end 122, and the first outlet end 121 and the second outlet end 122 are both arranged to be tilted downward in a vertical direction;

[0088] When viewed along the first direction F1 , a center line of the first outlet end 121 intersects a center line of the second outlet end 122 .

[0089] Specifically, when observed from the first direction F1, the center line of the first outlet terminal 121 intersects with the center line of the second outlet terminal 122. This shows that the two outlet terminals are not only tilted vertically downward, but also, from the front view, they are not parallel, but cross at a certain angle. The crossed center line design ensures that the cables 32 do not overlap or excessively contact each other when they are outgoing, avoiding interference or entanglement between the cables 32, especially in high current applications, it can reduce electromagnetic interference between adjacent cables 32. By crossing the outlets, this design makes more reasonable use of limited space, ensures that the cables 32 are more neatly arranged inside and outside the device, saves the rear space of the product, and optimizes the overall structure.

[0090] Furthermore, since the outlet is dispersed, the cables 32 are no longer arranged in a centralized manner, reducing the accumulation of cables 32 at the rear, thereby saving space at the rear of the product. Especially in environments that require a compact design, this structure can significantly optimize the overall layout. Since the center lines of the outlets 12 intersect, the arrangement of the cables 32 is no longer limited to a small space, and the arrangement distance is larger, avoiding interference between the cables 32. This decentralized arrangement helps to improve the overall performance of the product, especially in high current scenarios, reducing the risk of heat accumulation. Increasing the distance between the cables 32 allows air to circulate better, improving the heat dissipation effect. For high current application scenarios, good heat dissipation performance is a key factor in ensuring the stable operation of electrical components.

[0091] In a specific embodiment, the electrical connection assembly 30 further includes a second sealing member 37, the second sealing member 37 passes through the cable 32 and is sealed at the outlet 12, and the outlet structure further includes a tail cover 50;

[0092] The tail cover 50 is snap-connected to the wire outlet 12 , and one end of the second sealing member 37 facing away from the wire outlet 12 abuts against the tail cover 50 .

[0093] Specifically, the second seal 37 is mainly used to seal the connection between the cable 32 and the outlet 12 to prevent moisture, dust and other external contaminants from entering the charging port 21. This sealing structure can effectively protect the internal electrical connection assembly 30 and ensure its long-term stable operation. The main function of the tail cover 50 is to provide additional protection while forming a reliable connection with the outlet 12. The tail cover 50 is fixed to the outlet 12 by snap-fitting, which not only ensures the stability of the structure, but also provides a physical barrier for the outlet 12.

[0094] Furthermore, a positioning hole is provided at the tail cover 50, and the positioning hole on the tail cover 50 is used to receive and fix the positioning boss 34 at the outlet. During the assembly process, the positioning hole provides a certain assembly position for the positioning boss 34, ensuring that each component can be accurately aligned. It can effectively avoid errors caused by misalignment of components during the assembly process. The combination of the positioning hole and the positioning boss 34 allows the assembly direction and position to be clearly guided, reducing assembly errors caused by human factors. The buckle connection method makes assembly easier and more efficient.

[0095] In a specific embodiment, the second housing 20 further includes an insulating wall 23 . The insulating wall 23 is disposed between the plurality of the plug holes 211 along the first direction F1 to isolate electrical interference between the plurality of the terminals 31 .

[0096] Specifically, the insulating wall 23 is located between the multiple jacks 211, which can effectively isolate the electrical interference between different terminals 31 (such as the positive pole, negative pole and ground terminal 316). This can prevent signal interference and short circuit risks and improve electrical safety. By separating the space between the positive and negative terminals 315, the insulating wall 23 ensures that good electrical performance can be maintained even under high current conditions during charging, reducing the risk of arcing and overheating. During the charging process, a stable connection is formed between the electrical connection assembly 30 and the power source, and the insulating wall 23 ensures safe isolation between each terminal 31. Even during high-speed charging, the current can pass stably, reducing the problem of current leakage or interference.

[0097] In summary, in the assembly process of the above-mentioned outlet structure, the cable 32 is first passed through the tail cover 50, the second seal 37 and the outlet 12, and welded to the terminal 31 at 90 degrees to confirm that the welding position is correct to ensure the reliability of the electrical connection. The first seal 36 and the needle cap are assembled into the terminal 31, and the terminal 31 and the connecting plate 42 are further connected. The engaging groove on the connecting plate 42 is first engaged with the grounding terminal 316, and the fixing surface 312a of the fixing member 41 crimping terminal 31 is fixed to the connecting plate 42 to fix the electrical connection assembly 30 into a whole, and then assembled into the charging port 21 together, and the fixing member 41 and the connecting plate 42 are fixed to the second shell 20 with screws. After pressing and locking, the first shell 10 and the second shell 20 are covered, and the second seal 37 is engaged with the tail cover 50 at the outlet 12, and finally the low-voltage connector is connected to complete the assembly.

[0098] A high-current vehicle charging port includes the various structures of the above-mentioned high-current vehicle charging port outlet structure 100. Since this embodiment includes all the features of the above-mentioned embodiments, the above-mentioned embodiment has all the beneficial effects of the above-mentioned embodiments, which will not be repeated here.

[0099] The above is only an implementation method of the present application. It should be pointed out that a person skilled in the art can make improvements without departing from the inventive concept of the present application, but these improvements are within the scope of protection of the present application.

Claims

1. A high current car charging port outlet structure, characterized in that: It comprises a first shell and a second shell covering each other; The first housing is provided with a first accommodating cavity and a wire outlet communicating with the first accommodating cavity; The direction of the first shell toward the second shell is defined as a first direction, and the end surface of the second shell facing away from the first shell is provided with a charging port along the first direction; An electrical connection assembly, comprising a terminal and a cable, wherein the terminal comprises a charging portion and a wiring portion arranged in sequence, and the cable passes through the cable outlet and extends out of the first accommodating cavity to be welded to an end of the wiring portion away from the charging portion; The fixing assembly includes a fixing part and a connecting plate, wherein the fixing part crimps the terminal to fix the terminal with the connecting plate, and the fixing assembly is used to fix the electrical connection assembly into a whole and assemble it into the charging port along the first direction.

2. The outlet structure of a high-current automobile charging port according to claim 1, characterized in that: The terminal further comprises a fixing portion, which is arranged between the charging portion and the wiring portion, and the fixing portion extends outward along the circumference of the wiring portion to form a fixing surface; The fixing member comprises a body and a crimping portion which are integrally formed, the body being fixedly connected to the connecting plate, a side of the connecting plate which is away from the body being fixedly connected to the terminal, and the crimping portion being in contact with the fixing surface.

3. The outlet structure of a high-current automobile charging port according to claim 2, characterized in that: The fixing member further comprises a first engaging groove, the terminal comprises a positive terminal, a negative terminal and a ground terminal, and the crimping parts are both in contact with the fixing surfaces of the positive terminal and the negative terminal; The grounding terminal further comprises a second engaging groove interlocked with the first engaging groove, wherein the second engaging groove is annularly arranged on the outer peripheral surface of the fixing portion and is used to fix the positive terminal, the negative terminal and the grounding terminal into a whole.

4. The outlet structure of a high-current automobile charging port according to claim 2, characterized in that: The second housing has a socket connected to the charging port along the first direction, and the second housing further includes a limit block, which is arranged on a side of the socket close to the terminal; The terminal further comprises a limiting groove, wherein the limiting groove is arranged on the peripheral surface of the fixing portion, the bottom surface of the limiting groove is perpendicular to the fixing surface, and the limiting block is fitted in the limiting groove.

5. The outlet structure of a high-current automobile charging port according to claim 4, characterized in that: The inner wall of the jack is concave outwardly at one side close to the terminal to form a step surface, the peripheral surface of the terminal extends outwardly to form a boss, the boss and the fixing portion enclose a sealing groove, and the boss abuts against the step surface; The electrical connection assembly further includes a first sealing member, which is disposed in the sealing groove and is interference-fitted with an inner wall of the insertion hole.

6. The outlet structure of a high-current automobile charging port according to claim 1, characterized in that: The connection portion includes an arc portion, the connection portion is provided with a first welding surface, and the arc portion is provided at a corner of the first welding surface; The cable is provided with a second welding surface, the second welding surface is attached to and welded to the first welding surface, the central axis of the terminal is defined as a first straight line, the central axis of the cable is defined as a second straight line, and the first straight line and the second straight line are perpendicular to each other.

7. The outlet structure of a high-current automobile charging port according to claim 1, characterized in that: The outlet comprises a first outlet end and a second outlet end, wherein the first outlet end and the second outlet end are both arranged to be inclined downward in a vertical direction; When viewed along a first direction, a center line of the first outlet end intersects a center line of the second outlet end.

8. The outlet structure of a high-current automobile charging port according to claim 1, characterized in that: The electrical connection assembly further includes a second seal, the second seal passes through the cable and is sealed at the outlet, and the outlet structure further includes a tail cover; The tail cover is snap-connected to the wire outlet, and one end of the second sealing member facing away from the wire outlet abuts against the tail cover.

9. The outlet wire structure of a high-current automobile charging port according to claim 4, characterized in that: The second housing further includes an insulating wall, which is arranged between the plurality of jacks along the first direction to isolate electrical interference between the plurality of terminals.

10. A high current car charging port, characterized in that: It comprises a wire outlet structure of a high-current automobile charging port as described in any one of claims 1-9.

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