Protective connector for new energy automobile

Abstract

The invention relates to a protection type connector for a new energy automobile, and relates to the technical field of connectors, the protection type connector comprises a female socket and a male plug, the female socket is provided with an accommodating cavity and is fixedly provided with a conductive pin located in the accommodating cavity, and one side of the male plug is fixedly provided with a plugging part; a mounting cavity is formed in the side surface, far away from the male plug, of the plugging part, a conductive terminal is fixedly arranged, and a mounting hole is formed in the male plug; the male plug and the plugging part are jointly provided with a receding notch, an elastic clamping plate is fixedly arranged on the receding notch, a shifting block is fixedly arranged on the elastic clamping plate, a clamping block is fixedly arranged on the elastic clamping plate, and a clamping through groove for the clamping block to be elastically clamped in is formed in the inner wall of the containing cavity; an upper limiting plate and a lower limiting plate are mounted on the male plug, and arc-shaped notches are formed in the upper limiting plate and the lower limiting plate; according to the invention, the arc-shaped gaps of the upper and lower limiting plates define the limiting hole coaxial with the mounting hole, and the limiting hole cooperates with the inner wall elastic pad to form flexible abutting limiting for the connecting cable, thereby effectively protecting the insulating sheath layer of the cable.

Description

Technical Field

[0001] This application relates to the technical field of connectors, and in particular to a protective connector for new energy vehicles. Background Technology

[0002] Against the backdrop of the rapid development of the new energy vehicle industry, connectors, as core connecting components between the battery pack and the vehicle's electrical system, undertake the critical functions of electrical signal transmission and power delivery. Their reliability directly affects the vehicle's driving safety and operational stability. Since new energy vehicle battery packs are usually fixed under the vehicle, connectors must withstand vibrations, impacts, and environmental corrosion under complex road conditions for extended periods. Therefore, stringent requirements are placed on their structural stability, wear resistance, and sealing protection capabilities.

[0003] In related technologies, a connector for use in new energy vehicles includes a female socket fixed on a battery pack at the bottom of the vehicle and a male plug that is plugged into the socket. The female socket has several mounting cavities and conductive pins fixed in the mounting cavities. The male plug has a receiving cavity and conductive terminals fixed in the receiving cavity. A connecting cable is provided on the side of the male plug away from the female socket, with one end inserted into the receiving cavity and fixedly connected to one end of the conductive terminal. After the male plug and the female socket are plugged into each other, the conductive pins and conductive terminals are plugged into each other to realize the conduction of electrical signals.

[0004] In the aforementioned technologies, because the connector is installed under the vehicle, it must withstand high-frequency vibrations and impacts from bumpy road surfaces during vehicle operation. The opening edge of the connecting cable and the male plug's receiving cavity is constantly under dynamic friction. Over time, this continuous friction causes the insulation layer of the connecting cable to gradually wear down and thin, and in severe cases, even crack, exposing the cable core. This not only affects the stability of electrical signal transmission but may also lead to safety hazards such as short circuits and leakage, directly threatening vehicle safety and indicating room for improvement. Summary of the Invention

[0005] The purpose of this application is to provide a protective connector for new energy vehicles, which solves the problem of insulation layer wear caused by friction between the connecting cable and the edge of the cavity opening in the above-mentioned related technologies.

[0006] This application provides a protective connector for new energy vehicles, which adopts the following technical solution: A protective connector for new energy vehicles includes a female socket installed on the underside of the vehicle and a male plug that mates with the female socket. The female socket has a receiving cavity and a conductive pin fixed within the receiving cavity. A plug portion is fixed on one side of the male plug. A mounting cavity is formed on the side of the plug portion away from the male plug, and a conductive terminal is fixed within the mounting cavity. A mounting hole communicating with the mounting cavity and allowing a connecting cable to pass through is formed on the side of the male plug away from the plug portion. A clearance notch is formed on the outer periphery of both the male plug and the plug portion. An elastic retaining plate is fixed on the inner wall of the clearance notch away from the male plug. A lever is fixed on the outer periphery of the end of the elastic plate away from the plug-in part, and a snap-fit ​​block is fixed on the outer side of the elastic plate away from the plug-in part. A snap-fit ​​groove is opened on the inner wall of the receiving cavity for the snap-fit ​​block to snap into elastically. An upper limit plate and a lower limit plate are detachably installed side by side on the side of the male plug away from the plug-in part. An arc-shaped notch with the same number of mounting holes is opened on the side of the upper limit plate and the lower limit plate that are close to each other. An elastic pad is fixed on the inner wall of the arc-shaped notch. The two arc-shaped notches together form a limiting hole coaxial with the mounting hole. After the upper limit plate and the lower limit plate are installed, the elastic pad presses against the outer periphery of the connecting cable.

[0007] By adopting the above technical solution, the arc-shaped notches of the upper and lower limit plates are arranged to form a limit hole coaxial with the mounting hole. Together with the elastic pad on the inner wall, it forms a flexible clamping limit for the connecting cable, which not only fixes the position of the cable and avoids dynamic friction between the cable and the edge of the mounting hole caused by high-frequency vibration during vehicle operation, but also effectively protects the cable insulation layer, reduces safety hazards such as short circuits and leakage, and ensures stable electrical signal transmission and vehicle driving safety; it can also flexibly adapt to the needs of cable installation and maintenance through the detachable design, and the structure is simple and easy to operate.

[0008] Optionally, the lower limiting plate is rotatably connected to the side edge of the male plug facing the male plug and the edge of the male plug away from the toggle block. The lower limiting plate can rotate away from the plug portion to a limiting state where it abuts against the side of the male plug away from the plug portion, and rotate towards the plug portion to a retracted state where it abuts against the outer peripheral surface of the male plug. When the lower limiting plate is in the limiting state, the upper limiting plate is rotatably connected to the edge of the lower limiting plate away from the male plug. The upper limiting plate can rotate to abut against the side of the male plug away from the plug portion. When the lower limiting plate is in the retracted state, the upper limiting plate can rotate with the lower limiting plate to a folded state where it abuts against the outer peripheral surface of the plug portion. The male plug is provided with a locking member for locking the upper limiting plate in the abutting state and a fixing member for locking the upper limiting plate in the folded state.

[0009] By adopting the above technical solution, in the limited-position state, the upper and lower limit plates reliably abut against each other and are fixed by the locking mechanism, continuously providing stable protection for the connecting cable. In the folded state, the limit plates fit against the outer periphery of the male plug and the insertion part, and after being locked by the fixing mechanism, the overall volume is significantly reduced, lowering transportation and storage costs. At the same time, the rotating structure is easy to operate, requiring no additional disassembly of parts. The locking and fixing mechanisms respectively ensure the structural stability in both states, without affecting the cable protection effect, while improving the flexibility and practicality of the connector, adapting to different application scenarios.

[0010] Optionally, the locking component includes a hinge seat fixed on the lever block and an elastic telescopic rod with one end rotatably connected to the hinge seat. The elastic telescopic rod has active elastic telescopic performance, and the rotation surface of the elastic telescopic rod is parallel to the rotation surface of the lower limit plate. Two locking rods are detachably installed at the end of the elastic telescopic rod away from the hinge seat. When the upper limit plate is in the abutting state, a locking slot is provided on the side facing the lever block. When the upper limit plate is in the abutting state, the locking rod can rotate with the elastic telescopic rod and be inserted into the locking slot.

[0011] By adopting the above technical solution, on the one hand, the locking rod is driven by the elastic telescopic rod to insert into the locking slot of the upper limit plate, which can quickly and reliably lock the upper limit plate in the contact state, ensuring the stability of the cable limit protection; on the other hand, the elastic telescopic rod can elastically squeeze the lever after rotation, and combined with its own elastic telescopic performance, it can effectively prevent unauthorized personnel from accidentally touching the lever to unlock the male plug and female socket, reducing the risk of accidental separation.

[0012] Optionally, a fixing slot is provided on the opposite two sides of the plug-in portion. The fixing member includes a fixing rod that slides in the fixing slot, an elastic pressing member that is fixed in the fixing slot, and a control member provided on the male plug. When the upper limit plate is in the folded state, a fixing slot is provided on the side facing the plug-in portion. When the upper limit plate is in the folded state, the elastic telescopic rod can be flipped to a state that abuts against the side of the dial away from the male plug. At this time, the locking rod can press the elastic pressing member through the control rod, so that the end of the fixing rod away from the dial is inserted into the fixing slot.

[0013] By adopting the above technical solution, after the upper limit plate is folded, the elastic telescopic rod flips and fits against the lever. The locking rod, through the control component, squeezes the elastic compression component, driving the fixing rod to insert into the fixing slot, quickly completing the folded locking state and ensuring structural stability during storage and transportation. At the same time, the fixing function is achieved by using the existing locking rod and elastic telescopic rod, eliminating the need for an additional independent locking structure, simplifying the overall design and saving costs.

[0014] Optionally, a fixing protrusion is fixed on the outer periphery of the fixing rod, and a relief groove is provided at the opening edge of the fixing through groove facing the relief notch for the fixing protrusion to slide into. The elastic extrusion member is a first spring in a compressed state, and the two ends of the first spring are respectively fixedly connected to the inner side of the fixing protrusion and the bottom wall of the relief groove.

[0015] By adopting the above technical solution, the cooperation of the fixed protrusion and the recessed groove provides a stable installation and expansion space for the first spring. The compressed first spring can continuously apply elastic compressive force to the fixed rod, ensuring that the fixed rod can be reliably inserted into the fixed slot and improving the locking stability in the folded state. At the same time, the structure is simple and compact, the spring elastically returns smoothly, ensuring the convenience of locking and unlocking operations and adapting to the need for repeated switching.

[0016] Optionally, a guide bevel is provided at the opening edge of the fixing slot.

[0017] By adopting the above technical solution, the guide slope can provide guidance for the insertion of the fixing rod into the fixing slot, reduce the alignment accuracy requirements between the fixing rod and the fixing slot, and allow the fixing rod to slide smoothly into the slot along the slope, thereby improving the convenience and efficiency of the locking operation in the folded state.

[0018] Optionally, a guide slope is provided on the outer edge of the end of the fixing rod away from the lever.

[0019] By adopting the above technical solution, the guide slope and the guide slope of the fixing slot cooperate to further optimize the insertion path of the fixing rod, reduce the difficulty of alignment, and enable the fixing rod to slide into the fixing slot more smoothly, thereby improving the convenience of the folding and locking operation.

[0020] Optionally, the locking rod and the elastic telescopic rod are rotatably connected, and the two locking rods can rotate towards each other to a parallel state and away from each other to a coaxial state. The male plug has a control through hole on its outer periphery facing the dial block, and the outer side of the plug part has a control notch that communicates with both the control through hole and the clearance groove. The control component includes a positioning protrusion fixed on the outer periphery of the male plug facing the dial block, a control rod slidably disposed in the control through hole, and a connecting rod in the control notch. The positioning protrusion has a positioning notch on its side facing the plug part, and the two ends of the connecting rod are rotatably connected to the end of the control rod away from the dial block and the end of the fixing rod facing the dial block, respectively. The upper edge of the control rod has a first inclined surface. When the upper limit plate is in a folded state and the elastic telescopic rod is flipped to abut against the side of the dial block away from the male plug, the two locking rods can rotate away from each other to a coaxial state and be inserted into the positioning notch. During this process, the locking rod presses the control rod along the first inclined surface to slide away from the dial block, so that the end of the fixing rod is inserted into the fixing slot.

[0021] By adopting the above technical solution, the locking lever can flexibly switch between parallel and coaxial states to adapt to different usage scenarios. In the limit state, it is inserted into the locking slot to fix the upper limit plate in parallel. In the folded state, it is rotated back to back to coaxial and engages with the positioning notch. During the process, it slides along the first inclined surface of the control lever, and the connecting rod drives the fixing lever to insert into the fixing slot. Folding and locking can be completed without additional operation, which is efficient and labor-saving. The cooperation between the positioning protrusion and the positioning notch ensures the stable engagement of the locking lever. The transmission of each component of the control unit is smooth and the linkage logic is rigorous, which not only simplifies the operation steps, but also improves the reliability of locking in the folded state. At the same time, the components are guided by inclined surfaces and connected by rotation, which reduces mechanical wear and jamming and extends service life.

[0022] Optionally, the opening edge of the positioning notch is provided with a second bevel.

[0023] By adopting the above technical solution, the second inclined surface provides guidance for the locking rod to be inserted into the positioning notch, reducing the difficulty of alignment, allowing the locking rod to slide in smoothly and be accurately positioned, reducing jamming and wear, and ensuring the convenience and reliability of the linkage locking operation.

[0024] Optionally, the locking rod has a third inclined surface at the end edge away from the elastic telescopic rod.

[0025] By adopting the above technical solution, the third inclined surface, together with the second and first inclined surfaces, forms a multi-guided cooperation, further reducing the resistance of the locking rod entering the positioning notch and squeezing the control rod, avoiding jamming, and improving the smoothness and efficiency of the linkage locking operation.

[0026] In summary, this application includes the following beneficial technical effects: In this application, the arc-shaped notches of the upper and lower limit plates are arranged to form a limit hole coaxial with the mounting hole. Together with the elastic pad on the inner wall, they form a flexible clamping limit for the connecting cable. This not only fixes the position of the cable and avoids dynamic friction between the cable and the edge of the mounting hole caused by high-frequency vibration during vehicle operation, but also effectively protects the cable insulation layer, reduces safety hazards such as short circuits and leakage, and ensures stable electrical signal transmission and vehicle driving safety. Furthermore, the detachable design allows for flexible adaptation to cable installation and maintenance needs, and the structure is simple and easy to operate. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application; Figure 2 This is an exploded structural diagram of Embodiment 1 of this application; Figure 3 This is a cross-sectional view of Embodiment 1 of this application illustrating the installation and mating of conductive pins and conductive terminals; Figure 4 This is a schematic diagram of the overall structure of Embodiment 2 of this application; Figure 5 This is a schematic diagram illustrating the installation and cooperation of the upper limit plate and the lower limit plate in Embodiment 2 of this application; Figure 6 This is a partial structural diagram illustrating the installation and mating of the locking component in Embodiment 2 of this application; Figure 7 This is a partial cross-sectional view of Embodiment 2 of this application illustrating the installation and fit of the fasteners; Figure 8 yes Figure 7 An enlarged schematic diagram of part A in the middle; Figure 9 yes Figure 7 Enlarged schematic diagram of part B; Figure 10 This is a schematic diagram illustrating the installation and cooperation of the locking rod and the positioning protrusion in Embodiment 2 of this application.

[0028] In the diagram, 1. Female socket; 11. Receiving cavity; 111. Snap-fit ​​groove; 12. Conductive pin; 2. Male plug; 21. Mounting hole; 22. Clearance notch; 23. Control through hole; 3. Plug-in part; 31. Mounting cavity; 32. Conductive terminal; 33. Fixing groove; 331. Clearance recess; 34. Control notch; 4. Flexible retaining plate; 41. Toggle block; 42. Snap-fit ​​block; 5. Limiting component; 51. Upper limit plate; 511. Locking slot; 512. Fixing slot; 5121. Guide slope; 5 2. Lower limit plate; 521. Arc-shaped notch; 53. Elastic pad; 6. Locking component; 61. Hinge seat; 62. Elastic telescopic rod; 63. Locking rod; 631. Third inclined surface; 7. Fixing component; 71. Fixing rod; 711. Guide inclined surface; 712. Fixing protrusion; 72. Elastic extrusion component; 721. First spring; 73. Control component; 731. Positioning protrusion; 7311. Positioning notch; 7312. Second inclined surface; 732. Control rod; 7321. First inclined surface; 733. Connecting rod. Detailed Implementation

[0029] The present application will be further described in detail below with reference to all the accompanying drawings.

[0030] Example 1: Reference Figure 1 , Figure 2 and Figure 3A protective connector for new energy vehicles includes a female socket 1 installed on the bottom of the vehicle and a male plug 2 that is plugged into the female socket 1. The female socket 1 has a receiving cavity 11 and two conductive pins 12 fixed in the receiving cavity 11. A plug portion 3 is fixed on one side of the male plug 2. A mounting cavity 31 is opened on the side of the plug portion 3 away from the male plug 2 and two conductive terminals 32 are fixed in the mounting cavity 31. Two mounting holes 21 are opened on the side of the male plug 2 away from the plug portion 3, which communicate with the mounting cavity 31 and allow connecting cables to pass through. The male plug 2 and the plug portion 3 are provided with a clearance notch 22 on their outer periphery. An elastic retaining plate 4 is fixed on the inner wall of the clearance notch 2 away from the male plug 2. A lever block 41 is fixed on the outer periphery of the end of the elastic retaining plate 4 away from the plug portion 3. A retaining block 42 is fixed on the outer side of the elastic retaining plate 4 away from the plug portion 3. A retaining groove 111 is provided on the inner wall of the receiving cavity 11 for the retaining block 42 to be elastically engaged. The implementation principle of this application embodiment is as follows: When the male plug 2 and the female socket 1 are plugged into each other, the plug part 3 is inserted into the corresponding receiving cavity 11. At this time, the conductive pin 12 and the conductive terminal 32 abut against each other, and the locking block 42 is inserted into the corresponding locking slot 111, so that the male plug 2 and the female socket 1 are plugged into each other and locked. When the operator applies force to press the lever 41, the locking block 42 can be dislodged from the locking slot 111, and only then can the male plug 2 and the female socket 1 be separated.

[0031] Example 2: Reference Figure 4 The difference between this embodiment and Embodiment 1 is that the male plug 2 is provided with a limiting component 5 on its exterior. The limiting component 5 includes an upper limiting plate 51 and a lower limiting plate 52 that are detachably installed side by side on the side of the male plug 2 away from the plug portion 3. The upper limiting plate 51 and the lower limiting plate 52 are provided with arc-shaped notches 521 in the same number as the mounting holes 21 on their sides that are close to each other. The inner wall of the arc-shaped notches 521 is fixed with an elastic pad 53 made of rubber. The two arc-shaped notches 521 together form a limiting hole coaxial with the mounting holes 21. After the connecting cable is installed in the male plug 2, the upper limit plate 51 and the lower limit plate 52 can be detachably installed on the side of the male plug 2 away from the plug part 3. At this time, the limiting holes formed by the two arc-shaped notches 521 together limit the outer periphery of the connecting cable, and the elastic pad 53 presses against the outer periphery of the connecting cable, reducing the possibility of wear at the connection point of the connecting cable near the mounting hole 21.

[0032] Reference Figure 4 and Figure 5The lower limit plate 52 is rotatably connected to the side edge of the male plug 2 away from the toggle block 41. The lower limit plate 52 can rotate away from the plug part 3 to a limit state where it abuts against the side of the male plug 2 away from the plug part 3, and rotate towards the plug part 3 to a storage state where it abuts against the outer peripheral surface of the male plug 2. The male plug 2 is provided with a locking member 6 and a fixing member 7 on its outside. When the lower limit plate 52 is in the limit state, the upper limit plate 51 and the lower limit plate 52 are rotatably connected to the edge away from the male plug 2. At this time, the upper limit plate 51 can rotate to a contact state where it abuts against the side of the male plug 2 away from the plug part 3, and the upper limit plate 51 is locked by the locking member 6. In this state, the upper limit plate 51 and the lower limit plate 52 limit and abut against the connecting cable. When the lower limit plate 52 is in the retracted state, the upper limit plate 51 can rotate with the lower limit plate 52 to a folded state that abuts against the outer peripheral surface of the plug part 3, and the upper limit plate 51 is locked by the fastener 7. This state reduces the overall volume of the male plug 2 and reduces transportation and storage costs.

[0033] Reference Figure 6 The locking component 6 includes a hinge seat 61 fixed on the lever 41 and an elastic telescopic rod 62 rotatably connected to the hinge seat 61 at one end. The rotation surface of the elastic telescopic rod 62 is parallel to the rotation surface of the lower limit plate 52, and the elastic telescopic rod 62 has active elastic telescopic performance. This is a conventional elastic telescopic structure, which will not be described in detail here. Two locking rods 63 can be detachably installed at the end of the elastic telescopic rod 62 away from the hinge seat 61. When the upper limit plate 51 is in the abutting state, a locking slot 511 is provided on the side facing the lever 41. When the upper limit plate 51 is in the abutting state, the locking lever 63 can rotate with the elastic telescopic lever 62 and be inserted into the locking slot 511. The upper limit plate 51 can be locked by the locking lever 63, and the elasticity of the elastic telescopic lever 62 can reduce the possibility of unauthorized personnel accidentally touching the toggle block 41 to unlock the male plug 2 and the female socket 1.

[0034] Reference Figure 6 , Figure 7 and Figure 8 The plug-in part 3 has a fixing groove 33 on its two opposite sides. The fixing member 7 includes a fixing rod 71 that slides in the fixing groove 33, an elastic pressing member 72 that is fixed in the fixing groove 33, and a control member 73 on the male plug 2. The fixing rod 71 has a guide slope 711 on the outer edge of the end away from the lever 41. When the upper limit plate 51 is in the folded state, a fixing slot 512 is provided on the side facing the plug-in part 3, and a guide slope 5121 is provided at the opening edge of the fixing slot 512. A fixing protrusion 712 is fixed on the outer periphery of the fixing rod 71. A relief groove 331 for the fixing protrusion 712 to slide into is opened at the opening edge of the fixing through groove 33 facing the relief notch 22. The elastic extrusion member 72 is a first spring 721 in a compressed state. The two ends of the first spring 721 are fixedly connected to the inner side of the protrusion 712 and the bottom wall of the relief groove 331, respectively. When the upper limit plate 51 is in a folded state (that is, when the male plug 2 is transported or stored separately), the elastic telescopic rod 62 can be flipped to a position where it abuts against the side of the lever 41 away from the male plug 2. At this time, the locking rod 63 can squeeze the elastic pressing member 72 through the control rod 732, so that the end of the fixing rod 71 away from the lever 41 is inserted into the fixing slot 512.

[0035] Reference Figure 7 , Figure 9 and Figure 10 The locking rod 63 is rotatably connected to the elastic telescopic rod 62. The two locking rods 63 can rotate to a parallel state facing each other and to a coaxial state facing away from each other. The locking rod 63 has a third inclined surface 631 at the end edge away from the elastic telescopic rod 62. The male plug 2 has a control through hole 23 on the outer periphery facing the toggle block 41. The outer side of the plug part 3 has a control notch 34 that communicates with both the control through hole 23 and the clearance groove 331. The control component 73 includes a positioning protrusion 731 fixed on the outer peripheral surface of the male plug 2 facing the dial 41, a control rod 732 slidably disposed in the control through hole 23, and a connecting rod 733 located in the control notch 34; the positioning protrusion 731 has a positioning notch 7311 on the side facing the plug portion 3, and the opening edge of the positioning notch 7311 has a second inclined surface 7312; the two ends of the connecting rod 733 are respectively rotatably connected to the end of the control rod 732 away from the dial 41 and the end of the fixed rod 71 facing the dial 41, and the upper edge of the control rod 732 has a first inclined surface 7321; When the upper limit plate 51 is in a folded state and the elastic telescopic rod 62 is flipped to abut against the side of the lever 41 away from the male plug 2, the two locking rods 63 can rotate back to back to a coaxial state and lock into the positioning notch 7311. During this process, the locking rod 63 presses the control rod 732 along the first inclined surface 7321 and slides away from the lever 41, so that the end of the fixing rod 71 is inserted into the fixing slot 512. When it is necessary to release the locking of the upper limit plate 51 in the folded state, the locking rod 63 is rotated out from the positioning notch 7311, the elastic pressing member 72 drives the fixing rod 71 to move upward, and the control rod 732 moves upward and resets synchronously.

[0036] The implementation principle of this application embodiment is as follows: In the plug-in operation: When the male plug 2 is connected to the female socket 1, the plug part 3 is inserted into the receiving cavity 11 on the female socket 1, the conductive pin 12 and the conductive terminal 32 abut against each other and conduct electricity, and the locking block 42 of the elastic locking plate 4 is engaged into the locking groove 111 to complete the locking. After the connecting cable passes through the mounting hole 21, the lower limit plate 52 rotates to the limit state, and the upper limit plate 51 flips to abut against the side of the male plug 2. The limit hole surrounded by the arc notch 521, together with the elastic pad 53, clamps the cable and reduces wear at the connection. At this time, the two locking rods 63 rotate to a parallel state and rotate with the elastic telescopic rod 62 to insert the locking rods 63 into the locking slots 511 of the upper limit plate 51, which not only fixes the limit plate, but also uses the elastic telescopic rod 62 to block the toggle block 41 to prevent accidental unlocking.

[0037] Folded Storage State: When not in use, the lower limit plate 52 flips towards the insertion part 3 to the storage state, and the upper limit plate 51 folds along with it to fit against the outer periphery of the insertion part 3. The elastic telescopic rod 62 flips to fit against the side of the lever 41, and the two locking rods 63 rotate in opposite directions to become coaxial and engage with the positioning notch 7311. During this process, the control rod 732 is pressed along the first inclined surface 7321, and the connecting rod 733 pushes the fixing rod 71 to overcome the elastic force of the first spring 721, inserting it into the fixing slot 512 of the upper limit plate 51 to complete the locking. This state significantly reduces the size of the male plug 2, lowering transportation and storage costs.

[0038] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A protective connector for new energy vehicles, comprising a female socket (1) installed on the bottom of the vehicle and a male plug (2) that is plugged into the female socket (1), wherein the female socket (1) has a receiving cavity (11) and a conductive pin (12) fixed in the receiving cavity (11), and a plug portion (3) is fixed on one side of the male plug (2); a mounting cavity (31) is opened on the side of the plug portion (3) away from the male plug (2) and a conductive terminal (32) fixed in the mounting cavity (31); and a mounting hole (21) communicating with the mounting cavity (31) and allowing a connecting cable to pass through is opened on the side of the male plug (2) away from the plug portion (3). The male plug (2) and the plug part (3) are provided with a clearance notch (22) on their outer periphery. An elastic plate (4) is fixed on the inner wall of the clearance notch (22) away from the male plug (2). A lever (41) is fixed on the outer periphery of the end of the elastic plate (4) away from the plug part (3). A locking block (42) is fixed on the outer side of the elastic plate (4) away from the plug part (3). A locking groove (111) is provided on the inner wall of the receiving cavity (11) for the locking block (42) to be elastically locked in. Its features are, The male plug (2) is detachably mounted with an upper limit plate (51) and a lower limit plate (52) on the side away from the plug part (3). The upper limit plate (51) and the lower limit plate (52) are provided with arc-shaped notches (521) on the sides close to each other, the same number as the mounting holes (21). An elastic pad (53) is fixed on the inner wall of the arc-shaped notch (521). The two arc-shaped notches (521) together form a limiting hole coaxial with the mounting hole (21). After the upper limit plate (51) and the lower limit plate (52) are installed, the elastic pad (53) presses against the outer periphery of the connecting cable.

2. The protective connector for new energy vehicles according to claim 1, characterized in that, The lower limiting plate (52) is rotatably connected to the side edge of the male plug (2) away from the toggle block (41). The lower limiting plate (52) can rotate away from the plug part (3) to a limiting state where it abuts against the side of the male plug (2) away from the plug part (3), and rotate towards the plug part (3) to a storage state where it abuts against the outer peripheral surface of the male plug (2). When the lower limit plate (52) is in the limiting state, the upper limit plate (51) is rotatably connected to the edge of the lower limit plate (52) away from the male plug (2). The upper limit plate (51) can rotate to a contact state where it abuts against the side of the male plug (2) away from the plug-in part (3). When the lower limit plate (52) is in the storage state, the upper limit plate (51) can rotate with the lower limit plate (52) to a folded state where it abuts against the outer peripheral surface of the plug-in part (3). The male plug (2) is provided with a locking member (6) for locking the upper limit plate (51) in the contact state and a fixing member (7) for locking the upper limit plate (51) in the folded state.

3. A protective connector for new energy vehicles according to claim 2, characterized in that, The locking member (6) includes a hinge seat (61) fixed on the lever (41) and an elastic telescopic rod (62) rotatably connected to the hinge seat (61) at one end. The elastic telescopic rod (62) has active elastic telescopic performance, and the rotation surface of the elastic telescopic rod (62) is parallel to the rotation surface of the lower limit plate (52). Two locking rods (63) are detachably installed at the end of the elastic telescopic rod (62) away from the hinge seat (61). When the upper limit plate (51) is in the abutting state, a locking slot (511) is provided on the side facing the toggle block (41). When the upper limit plate (51) is in the abutting state, the locking rod (63) can rotate with the elastic telescopic rod (62) and be inserted into the locking slot (511).

4. A protective connector for new energy vehicles according to claim 3, characterized in that, The plug-in part (3) has a fixed through groove (33) on its opposite two sides. The fixing member (7) includes a fixing rod (71) that slides in the fixed through groove (33), an elastic extrusion member (72) that is fixed in the fixed through groove (33), and a control member (73) that is provided on the male plug (2). When the upper limit plate (51) is in the folded state, a fixing slot (512) is provided on the side facing the plug-in part (3). When the upper limit plate (51) is in a folded state, the elastic telescopic rod (62) can be flipped to a position that abuts against the side of the toggle block (41) away from the male plug (2). At this time, the locking rod (63) can squeeze the elastic pressing member (72) through the control rod (732) so that the end of the fixing rod (71) away from the toggle block (41) is inserted into the fixing slot (512).

5. A protective connector for new energy vehicles according to claim 4, characterized in that, A fixing protrusion (712) is fixed on the outer periphery of the fixing rod (71). The fixing through groove (33) is provided with a relief groove (331) for the fixing protrusion (712) to slide into at the opening edge of the relief notch (22). The elastic extrusion member (72) is a first spring (721) in a compressed state. The two ends of the first spring (721) are respectively fixed to the inner side of the protrusion (712) and the bottom wall of the relief groove (331).

6. A protective connector for new energy vehicles according to claim 4, characterized in that, The fixed slot (512) has a guide slope (5121) at the opening edge.

7. A protective connector for new energy vehicles according to claim 4, characterized in that, A guide slope (711) is provided on the outer edge of the end of the fixed rod (71) away from the lever (41).

8. A protective connector for new energy vehicles according to claim 4, characterized in that, The locking rod (63) is rotatably connected to the elastic telescopic rod (62), and the two locking rods (63) can rotate towards each other to a parallel state and away from each other to a coaxial state; the male plug (2) has a control through hole (23) on the outer periphery facing the lever (41), and the outer side of the plug part (3) has a control notch (34) that communicates with both the control through hole (23) and the clearance groove (331); The control component (73) includes a positioning protrusion (731) fixed on the outer peripheral surface of the male plug (2) facing the dial block (41), a control rod (732) slidably disposed in the control through hole (23), and a connecting rod (733) located in the control notch (34); the positioning protrusion (731) has a positioning notch (7311) on the side facing the plug (3), and the two ends of the connecting rod (733) are respectively rotatably connected to the end of the control rod (732) away from the dial block (41) and the end of the fixing rod (71) facing the dial block (41), and the upper edge of the control rod (732) has a first inclined surface (7321); When the upper limit plate (51) is in a folded state and the elastic telescopic rod (62) is flipped to abut against the side of the toggle block (41) away from the male plug (2), the two locking rods (63) can rotate to a coaxial state and be inserted into the positioning notch (7311). During this process, the locking rod (63) presses the control rod (732) along the first inclined surface (7321) and slides away from the toggle block (41), so that the end of the fixing rod (71) is inserted into the fixing slot (512).

9. A protective connector for new energy vehicles according to claim 8, characterized in that, The positioning notch (7311) has a second inclined surface (7312) at the opening edge.

10. A protective connector for new energy vehicles according to claim 8, characterized in that, The locking rod (63) has a third inclined surface (631) at the end edge away from the elastic telescopic rod (62).

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