CHARGING CONNECTOR

Abstract

A charging connector is provided, comprising a charging socket body; multiple terminals arranged on the charging socket body; a hollow housing connected to the charging socket body; and multiple wires threaded within the housing. Each wire is detachably connected to a corresponding terminal by means of a terminal connector. In the embodiments of the present invention, the terminal connector is arranged as an intermediate adapter mechanism for connecting the terminals to the wires, facilitating the disassembly and assembly of the terminals and wires, and the rapid replacement of the wires.

Description

Charging connector

[0001] Related applications

[0002] This application claims priority to the Chinese utility model patent application with application number 202122696738.4 filed on November 5, 2021, and cites its disclosed contents as part of this application. Technical Field

[0003] The present application relates to the field of new energy vehicle charging technology, and in particular to a charging connector. Background Art

[0004] Currently, new energy vehicles are widely used, and they use charging systems to replenish energy. The charging system contains various connection mechanisms that connect to the charging station and charging gun system. The charging terminals and charging wiring harness are important parts of the electric vehicle charging station system. Currently, copper wires are used as charging cables in the charging station. The copper wires are connected to the charging terminals and then electrically connected to the battery system. In the existing technology, the charging station is directly connected to the wiring harness without an intermediate switching mechanism. This makes it impossible to achieve a quick plug-in function and quickly replace the wiring harness. In addition, the copper wires and charging terminals can only be connected at a 180-degree angle, making installation very difficult and causing the overall height of the charging station to be too high, affecting the installation of the vehicle body.

[0005] Furthermore, conductive cables and data communication cables are used to conduct current and signals. To reduce the impact of electromagnetic interference, conductive cables and data communication cables usually use shielded cables. At both ends of the cable, the shielding layer of the shielded cable is connected to a shielding device and grounded. Shielded cables usually include a conductor core and a shielding layer arranged sequentially from the inside to the outside. To facilitate connection with the docking cable or electrical equipment, the end of the cable is usually connected to a connector. Connectors generally do not have shielding devices for shielding, resulting in significant electromagnetic interference at the connector location. Providing a metal cover inside or outside the connector can achieve a shielding effect. However, the metal cover is difficult to process and has a high cost; the assembly of the metal cover and the connector is also relatively troublesome, increasing the assembly time; and when the metal cover is inside the connection part, it is easy to short-circuit with the conductor core, causing damage to the shielding layer or even burning of the cable, resulting in serious accidents. Therefore, a new solution is urgently needed in the existing technology to solve the above problems.

[0006] It should be noted that the above introduction to the technical background is merely intended to provide a clear and complete description of the technical solutions of this application and facilitate understanding by those skilled in the art. Simply because these solutions are described in the background technology section of this application, it should not be assumed that the above technical solutions are well known to those skilled in the art.

[0007] Summary of the Invention

[0008] In order to solve at least one of the problems pointed out in the above background technology, an embodiment of the present application provides a charging connector.

[0009] An embodiment of the present application provides a charging connector, comprising: a charging seat body; a plurality of terminals disposed within the charging seat body; a hollow shell connected to the charging seat body; and a plurality of cables passed through the shell, with the ends of each cable being detachably connected to the corresponding terminal via a terminal connector.

[0010] The beneficial effects of the embodiments of the present application include at least:

[0011] 1. In the embodiments of the present application, each cable is detachably connected to the corresponding terminal via a terminal connector. The terminal connector serves as an intermediate transfer mechanism to connect the terminal and the cable, making the terminal and the cable easy to assemble and disassemble, and facilitating quick replacement of cables or terminals.

[0012] 2. The embodiment of the present application can effectively shield the electromagnetic field inside the shielding shell by providing the shielding shell, thereby reducing the electromagnetic interference to other electrical components and helping to improve the safety of the vehicle.

[0013] 3. The embodiment of the present application facilitates disassembly and assembly by detachably connecting the charging base body and the housing, and facilitates replacement of the internal cables or the charging base body;

[0014] 4. In the embodiment of the present application, a snap ring is provided to fix the charging base body and the shell, which serves as a secondary locking function and improves the connection reliability of the charging base body and the shell.

[0015] 5. The embodiment of the present application reduces the height of the entire charging base by connecting the charging base body and the shell at a 90° angle, thereby facilitating installation and wiring of the vehicle body.

[0016] With reference to the following description and accompanying drawings, specific embodiments of the present application are disclosed in detail, indicating the manner in which the principles of the present application can be employed. It should be understood that the embodiments of the present application are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present application include many variations, modifications and equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the specification, are used to illustrate the implementation methods of the present application, and together with the text description, explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive work. In the drawings:

[0018] FIG1 is a schematic perspective structural diagram of an example of a charging connector according to an embodiment of the present application;

[0019] FIG2 is a cross-sectional view of an example of a charging connector according to an embodiment of the present application;

[0020] FIG3 is a schematic diagram of the connection between multiple cables and multiple terminals in an embodiment of the present application;

[0021] FIG4 is a schematic diagram of the structure of multiple cables passing through the end cover and the sealing gasket in an embodiment of the present application;

[0022] FIG5 is a schematic diagram of the connection between the charging base body and the housing in an embodiment of the present application;

[0023] FIG6 is a schematic structural diagram of an example of a terminal connector according to an embodiment of the present application;

[0024] FIG7 is a schematic structural diagram of an example of a shielding shell in an embodiment of the present application;

[0025] FIG8 is a schematic structural diagram of an example of a retaining ring in an embodiment of the present application. DETAILED DESCRIPTION

[0026] The above and other features of the present application will become apparent through the following description with reference to the accompanying drawings. In the description and the accompanying drawings, specific embodiments of the present application are disclosed in detail, which show some embodiments in which the principles of the present application can be adopted. It should be understood that the present application is not limited to the described embodiments. On the contrary, the present application includes all modifications, variations and equivalents that fall within the scope of the appended claims.

[0027] In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish different elements in terms of name, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having", etc. refer to the presence of the stated features, elements, components or components, but do not exclude the presence or addition of one or more other features, elements, components or components.

[0028] In the embodiments of the present application, the singular forms "a", "the", etc. may include plural forms and should be broadly understood as "a" or "a type" rather than being limited to the meaning of "one"; in addition, the term "said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise; in addition, the term "according to" should be understood as "at least in part according to...", and the term "based on" should be understood as "at least in part based on...", unless the context clearly indicates otherwise; in addition, the term "plurality" means two or more, unless otherwise specified.

[0029] The following describes the implementation of the embodiments of the present application with reference to the accompanying drawings.

[0030] The present invention provides a charging connector. FIG1 is a schematic diagram of a three-dimensional structure of an example of a charging connector according to the present invention, and FIG2 is a cross-sectional view of an example of a charging connector according to the present invention.

[0031] As shown in Figures 1 and 2, the charging connector of the embodiment of the present application includes a charging seat body 1, multiple terminals 2, a hollow shell 3 and multiple cables. The multiple terminals 2 are arranged in the charging seat body 1, and the shell 3 is connected to the charging seat body 1. For example, the multiple cables include two charging cables 4, two data cables 5 and a grounding wire 6 in Figure 3. The multiple cables are passed through the shell 3, and the ends of each cable are detachably connected to the corresponding terminal 2 through the terminal connector 7. The terminal connector 7 serves as an intermediate transfer mechanism to connect the terminal 2 and the cable, so that the terminal 2 and the cable are easy to disassemble and assemble, and the cable is easy to replace quickly.

[0032] As shown in Figures 3, 4 and 6, in some embodiments, the terminal connector 7 may include a connecting head 701 and a connecting rod 702 connected to each other, the connecting rod 702 is welded or crimped to the conductor of the cable, and the connecting head 701 is threadedly connected to the terminal 2, thereby facilitating quick replacement of cables and easy disassembly and assembly.

[0033] The welding method may be one or more of pressure welding, friction welding, resistance welding, ultrasonic welding, laser welding, diffusion welding, and electromagnetic welding.

[0034] Pressure welding is a method of applying pressure to the weldment to bring the joint surfaces into close contact and produce a certain amount of plastic deformation to complete the welding.

[0035] Friction welding refers to a method of welding that uses the heat generated by friction between the contact surfaces of the workpieces as a heat source to cause the workpieces to undergo plastic deformation under pressure.

[0036] Resistance welding refers to a method of welding that uses a strong current to pass through the contact point between the electrode and the workpiece, generating heat due to the contact resistance.

[0037] Ultrasonic welding uses high-frequency vibration waves to transmit to the surfaces of two objects to be welded. Under pressure, the two surfaces of the objects rub against each other to form a fusion between the molecular layers.

[0038] Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source.

[0039] Diffusion welding refers to a solid-state welding method in which the workpiece is pressurized at high temperature without causing visible deformation or relative movement.

[0040] Electromagnetic welding involves the instantaneous, high-speed collision of two workpieces under the influence of a strong pulsed magnetic field. The high pressure waves on the surfaces of the materials cause the atoms of the two materials to meet within the interatomic distance, forming a stable metallurgical bond at the interface. This is a form of solid-state cold welding that can join conductive metals with similar or dissimilar properties.

[0041] In some embodiments, the torque range of the threaded connection between the connector 701 and the terminal 2 is 0.1 N·m-30 N·m.

[0042] To verify the torque range for threading connector 701 to terminal 2 and its effect on the electrical connection performance between terminal 2 and terminal connector 7, the inventors selected identical terminals 2 and terminal connector 7 and tightened them together using different torques. They then tested the contact resistance between the terminals 2 and terminal connector 7 and the connection between connector 701 and terminal 2 after a vibration test. The test results are shown in Table 1.

[0043] The contact resistance between terminal 2 and terminal connector 7 is tested using a microresistance meter. One end of the meter's measuring tip is placed on connector 7, and the other end is placed on terminal 2, with the placement of the tip remaining the same for each measurement. The contact resistance reading on the meter is then read. In this embodiment, a contact resistance greater than 1 mΩ is considered unacceptable.

[0044] The vibration test involves placing the connected sample on a vibration test bench and subjecting it to 300 vibration cycles. Each cycle involves vibration in six directions at a frequency of 100 Hz and a single-direction acceleration of 40 m / s². The test then examines whether connector 701 and terminal 2 are loose. In this embodiment, loose connector 701 and terminal 2, or damage during installation, constitutes a failure.

[0045] Table 1 Effects of different torques on contact resistance and connection conditions

[0046]

[0047] As can be seen from Table 1 above, when the torque value of the screw connection between connector 701 and terminal 2 is less than 0.1 N·m, the contact resistance value between terminal 2 and terminal connector 7 is unqualified. In addition, connector 701 and terminal 2 loosen after the vibration test. Therefore, the inventors set the minimum torque range for the screw connection between connector 701 and terminal 2 to 0.1 N·m. When the torque value of the screw connection between connector 701 and terminal 2 is greater than 30 N·m, the contact resistance can no longer be further reduced. Therefore, the inventors set the torque range for the screw connection between connector 701 and terminal 2 to 0.1 N·m-30 N·m.

[0048] As shown in Figures 1 and 5, in some embodiments, the charging stand body 1 and the shell 3 can be arranged vertically, and the terminal 2 and the front end of the cable can be arranged vertically. When the charging stand body 1 is installed on the car body, the charging stand body 1 needs to be fixed on the car body, and the cable connected to the shell 3 needs to be arranged inside the car body. Due to the limited space inside the car body, if the overall length of the charging stand body 1, the shell 3 and the cable is large, it is necessary to occupy the space of other parts of the car body, which is not conducive to the rationality of the car body space layout. The charging stand body 1 and the shell 3 are arranged vertically, and the shell 3 and the cable can be arranged along the inside of the car body, reducing the height of the charging connector and not occupying the installation space of other electrical appliances.

[0049] As shown in Figures 2 and 7, in some embodiments, the charging connector may further include a shielding shell 8 disposed within the housing 3, through which at least one cable passes. The multiple cables include high-voltage cables and data communication cables, which conduct current and signals. High-voltage cables generally radiate electromagnetic waves, which can affect signal transmission in other electrical devices and data communication cables. Furthermore, other electrical devices on the vehicle body can also emit interfering electromagnetic waves, which can affect signal transmission in the data communication cables. To reduce the impact of electromagnetic interference, high-voltage and data communication cables are typically shielded. At both ends of the cable, the shielding layer of the shielded cable is connected to a shielding device and grounded. Shielded cables typically include a conductor and a shielding layer, arranged sequentially from the inside out. To facilitate connection with mating cables or electrical equipment, the cable ends are typically connected to connectors. Connectors generally lack shielding devices, resulting in significant electromagnetic interference at the connector location. Placing a shielding shell 8 within the charging connector effectively shields internal and external electromagnetic interference, reducing electromagnetic interference with other electrical components and signal interference with the data communication cables, thereby improving vehicle safety.

[0050] Furthermore, as shown in Figure 7, the shielding shell 8 has a first port 801 and a second port 802. At least one cable passes through the shielding shell 8 via the first port 801 and the second port 802. The first port 801 is sealed with the charging seat body 1, and the second port 802 is sealed with the cable passing through the shielding shell 8, so that the interior of the shielding shell 8 is in a sealed state, greatly reducing the entry of electromagnetic interference from the gap, thereby achieving a good shielding effect.

[0051] In some embodiments, the cable has a shielding mesh that is electrically connected to the shielding shell 8. The electrical connection between the shielding mesh and the shielding shell 8 can reduce shielding blind spots, expand the shielding range, and achieve better shielding effect. In addition, the other end of the cable shielding mesh is grounded, which can conduct eddy currents generated by electromagnetic interference in the shielding shell 8 and the shielding mesh, thereby avoiding degradation of the shielding effect.

[0052] Furthermore, as shown in Figures 3 and 4, the multiple cables may include a charging cable 4 and a data cable 5. The charging cable 4 and data cable 5 pass through the shielding shell 8 and are sealed with the second port 802 via an insulator 9. In the example of Figure 2, the insulator 9 extends from the second port 802 toward the exterior of the shielding shell 8 by a predetermined length. Because the shielding mesh of the charging cable 4 and data cable 5 needs to be removed after entering the charging connector, the charging cable 4 and data cable 5 inside the charging connector are unshielded and susceptible to electromagnetic interference. Passing the charging cable 4 and data cable 5 through the shielding shell 8 can shield and protect the charging cable 4 and data cable 5 from electromagnetic interference.

[0053] Furthermore, as shown in Figures 3 and 4 , the multiple cables may include a ground wire 6, which is located outside the shielding shell 8. In the example of Figure 2 , the ground wire 6 is located on one side of the shielding shell 8. The ground wire 6 can extend against the outer wall of the shielding shell 8 or be spaced apart from the outer wall of the shielding shell 8. The other end of the ground wire 6 is grounded, so it does not generate electromagnetic interference. The ground wire 6 does not transmit signals and is therefore not subject to interference. Therefore, the ground wire 6 can be arranged outside the shielding shell 8, reducing the volume of the shielding shell 8 and optimizing the cable layout within the entire charging connector.

[0054] Furthermore, as shown in Figures 2 and 4, the shell 3 has a first end and a second end relative to each other. The first end of the shell 3 is connected to the charging seat body 1, and the second end of the shell 3 is connected to an end cover 10. The end cover 10 and the shell 3 are sealed by a sealing gasket 11. The insulator 9 passes through the sealing gasket 11 and the end cover 10 and is sealed with the sealing gasket 11. The grounding wire 6 passes through the sealing gasket 11 and the end cover 10 and is sealed with the sealing gasket 11. Therefore, the interior of the shell 3 is in a sealed state and has a good waterproof effect.

[0055] For example, as shown in Figure 4, the shape of the sealing gasket 11 is consistent with the shape of the end face of the end cover 10. The sealing gasket 11 is embedded and fixed inside the end cover 10 and is close to the end face of the end cover 10. There are two through-holes on the sealing gasket 11 and the end cover 10, for the grounding wire 6 and the insulator 9 to pass through respectively.

[0056] Furthermore, the material of the shielding shell 8 includes one or more of conductive ceramics, carbon-containing conductors, solid electrolytes, mixed conductors, and conductive polymer materials.

[0057] In order to demonstrate the influence of different materials on the conductivity of the shielding shell 8, the inventors used materials of the same specifications and sizes but different materials to make shielding shell 8 samples, and tested the conductivity of the shielding shell 8 respectively. The experimental results are shown in Table 2 below. In this embodiment, the conductivity of the shielding shell 8 is greater than 99%, which is an ideal value.

[0058] Table 2: Effect of different materials on the conductivity of shielding shell 8

[0059]

[0060] As can be seen from Table 2 above, the conductivity of the shielding shell 8 made of the above-selected materials is within the ideal value range. Therefore, the inventor sets the material of the shielding shell 8 to be one or more of conductive ceramics, carbon-containing conductors, solid electrolytes, mixed conductors, and conductive polymer materials.

[0061] Furthermore, the carbon-containing conductor contains one or more of graphite powder, carbon nanotube material, and graphene material.

[0062] Furthermore, the conductive polymer material is a polymer material containing metal particles, the material of the metal particles contains one or more of nickel, cadmium, zirconium, chromium, cobalt, manganese, aluminum, tin, titanium, zinc, copper, silver, gold, phosphorus, tellurium, and beryllium, and the material of the polymer material is polyvinyl chloride, polyethylene, polyamide, polytetrafluoroethylene, tetrafluoroethylene / hexafluoropropylene copolymer, ethylene / tetrafluoroethylene copolymer, polypropylene, polyvinylidene fluoride, polyurethane, polyterephthalic acid, polyurethane elastomer, styrene block copolymer, perfluoroalkoxy alkane, chlorinated polyethylene, polyphenylene sulfide, polystyrene, silicone rubber, cross-linked One or more of polyolefin, ethylene propylene rubber, ethylene / vinyl acetate copolymer, chloroprene rubber, natural rubber, styrene-butadiene rubber, nitrile rubber, butadiene rubber, isoprene rubber, ethylene propylene rubber, chloroprene rubber, butyl rubber, fluororubber, polyurethane rubber, polyacrylate rubber, chlorosulfonated polyethylene rubber, epichlorohydrin rubber, chlorinated polyethylene rubber, chlorosulfur rubber, styrene-butadiene rubber, butadiene rubber, hydrogenated nitrile rubber, polysulfide rubber, cross-linked polyethylene, polycarbonate, polysulfone, polyphenylene oxide, polyester, phenolic resin, urea-formaldehyde, styrene-acrylonitrile copolymer, polymethacrylate, and polyoxymethylene resin.

[0063] The following examples illustrate the characteristics of the materials.

[0064] Polyoxymethylene is a smooth, shiny, hard, and dense material with a pale yellow or white color. It can be used for long periods of time in temperatures between -40°C and 100°C. Its wear resistance and self-lubrication properties are superior to most engineering plastics, and it also has good oil and peroxide resistance.

[0065] Polycarbonate is colorless and transparent, heat-resistant, impact-resistant, and flame-retardant Grade BI. It has excellent mechanical properties within normal operating temperatures. Compared with polymethyl methacrylate (PMMA), which has similar properties, polycarbonate has better impact resistance, a high refractive index, and good processing properties. It also has very advanced flame retardant properties without the need for additives.

[0066] Polyamide is non-toxic, lightweight, and offers excellent mechanical strength, wear resistance, and corrosion resistance. It can replace metals like copper in the manufacture of bearings, gears, pump impellers, and other parts in the machinery, chemical, instrumentation, and automotive industries. Polycarbonate or polyamide is the preferred conductive polymer material.

[0067] In one embodiment, the shielding shell 8 is formed by one or more processes selected from the group consisting of an extrusion process, an injection molding process, a dipping process, a blow molding process, a foaming process, a spraying process, a printing process, and a 3D printing process.

[0068] The injection molding process refers to the process of making semi-finished products of a certain shape through operations such as pressurization, injection, cooling, and separation of molten raw materials.

[0069] The dipping process refers to the process of electrically heating the workpiece to a certain temperature, then dipping it into the dipping liquid and allowing the dipping liquid to solidify on the workpiece.

[0070] Blow molding involves using an extruder to extrude a tubular parison, placing it into a mold while still hot, and blowing it with compressed air until it reaches the mold cavity shape. Once cooled and shaped, the finished product is obtained. Advantages include compatibility with a variety of plastics, the ability to produce large products, high production efficiency, relatively uniform parison temperature, and low equipment investment.

[0071] The foaming process involves the addition and reaction of physical or chemical blowing agents during the foaming process or within a foamed polymer material, creating a honeycomb or porous structure. The basic steps of foaming are cell nucleus formation, cell nucleus growth or expansion, and cell nucleus stabilization. Under given temperature and pressure conditions, the solubility of a gas decreases, reaching saturation. This allows excess gas to be expelled and form bubbles, thus achieving nucleation.

[0072] Spraying is a coating method that uses a spray gun or disc atomizer to disperse the spray material into uniform, fine droplets using pressure or centrifugal force, and then applies it to the surface of the object being coated. Spraying can be categorized as air spray, airless spray, electrostatic spray, and various derivatives of these basic spray methods.

[0073] Printing process refers to the method of transferring ink or other viscous fluid materials to the surface of the object to be coated using a printing plate, including screen printing, letterpress printing, flexographic printing, gravure printing or offset printing.

[0074] 3D printing is a type of rapid prototyping technology, also known as additive manufacturing. It is a technology that uses digital model files as the basis and uses adhesive materials such as powdered metal or plastic to construct objects by printing layer by layer.

[0075] In some embodiments, the plurality of terminals 2 may include a plug-in terminal and a grounding terminal, the plug-in terminal being electrically connected to the charging line 4 and the data line 5 respectively, and the grounding terminal being electrically connected to the grounding line 6 .

[0076] In one embodiment, the material of the terminal 2 includes one or more of nickel, cadmium, zirconium, chromium, cobalt, manganese, aluminum, tin, titanium, zinc, copper, silver, gold, phosphorus, tellurium, and beryllium.

[0077] In order to demonstrate the effect of different materials on the conductivity of the terminal 2, the inventors used samples of the terminal 2 made of different materials with the same specifications and dimensions to test the conductivity of the terminal 2. The experimental results are shown in Table 3. In this embodiment, the conductivity of the terminal 2 is greater than 99%, which is an ideal value.

[0078] Table 3: Effect of different materials on the conductivity of terminal 2

[0079]

[0080] As can be seen from Table 3, the conductivity of the selected metal materials for Terminal 2 is within the ideal range. Furthermore, phosphorus is a non-metallic material and cannot be directly used as a material for metal inserts. However, it can be added to other metals to form alloys, improving the metal's inherent conductivity and mechanical properties. Therefore, the inventors have selected Terminal 2 to be made of one or more of nickel, cadmium, zirconium, chromium, cobalt, manganese, aluminum, tin, titanium, zinc, copper, silver, gold, phosphorus, tellurium, and beryllium.

[0081] In some embodiments, the charging stand body 1 and the shell 3 are detachably connected to facilitate disassembly and assembly, and to facilitate replacement of internal cables.

[0082] Furthermore, the charging station body 1 and the housing 3 are detachably pluggable. Specifically, for example, as shown in FIG5 , the housing 3 includes a housing 301 and a plug-in housing 302 . Multiple cables are inserted into the housing 301 , and the shielding shell 8 is also disposed within the housing 301 . The plug-in housing 302 is disposed at one end of the housing 301 and is perpendicular to the housing 301 . The plug-in housing 302 and the housing 301 are interconnected, and a portion of the charging station body 1 is inserted into the plug-in housing 302 , thereby achieving plug-in connection between the charging station body 1 and the housing 3 .

[0083] In a first feasible technical solution, the contact surface between the charging stand body 1 and the shell 3 is an adhesive layer, and the charging stand body 1 and the shell 3 are bonded together through the adhesive layer.

[0084] In a second feasible technical solution, the contact surface between the charging stand body 1 and the shell 3 is a magnetic attraction part, and the connection is achieved through the magnetic force between the magnetic attraction parts, which is convenient and quick.

[0085] In a third feasible technical solution, one contact surface of the charging stand body 1 and the shell 3 is provided with a claw and the other contact surface is provided with a slot. By assembling the claw and the slot, the charging stand body 1 and the shell 3 are stably connected together.

[0086] In a fourth feasible technical solution, a lock hook and a lock buckle are provided on the contact surface between the charging stand body 1 and the shell 3. By assembling the lock hook and the lock buckle, the charging stand body 1 and the shell 3 are stably connected together.

[0087] In a fifth feasible technical solution, threads and screws are respectively provided on the charging stand body 1 and the shell 3 , and the contact surfaces of the charging stand body 1 and the shell 3 are stably connected together through the screw connection of the threads and the screws.

[0088] In the sixth feasible technical solution, connecting holes are respectively provided on the charging stand body 1 and the shell 3, and rivets are passed through the connecting holes. One end of the rivet is deformed to tighten the connecting holes, so that the charging stand body 1 and the shell 3 are stably connected together.

[0089] In a seventh feasible technical solution, the charging station body 1 and the housing 3 have a welding surface in addition to the contact surface. A welding machine is used to melt and connect the welding surface together, thereby stably connecting the contact surface of the charging station body 1 and the housing 3. The welding machine includes a hot melt welding machine and an ultrasonic welding machine.

[0090] Furthermore, as shown in Figures 1 and 8, the charging connector can also include a snap ring 12, which has opposite two ends. The two ends of the snap ring 12 are respectively rotatably connected to the charging base body 1, and a clamping block 13 is provided on the outer wall of the shell 3. By rotating the snap ring 12, the snap ring 12 and the clamping block 13 can be clamped or separated, thereby clamping and fixing the charging base body 1 and the shell 3, which plays a secondary locking function, improves the connection reliability of the charging base body 1 and the shell 3, is simple to operate, and makes the disassembly and assembly of the charging base body 1 and the shell 3 more convenient.

[0091] Specifically, for example, as shown in Figures 1 and 8, pivot holes 120 are fixed on the inner sides of both ends of the snap ring 12, and pivots 101 are respectively provided on the two opposite outer walls of the charging stand body 1. The snap ring 12 is sleeved on the outside of the charging stand body 1, and the pivot 101 is plugged into the pivot hole 120, thereby realizing the rotational connection between the snap ring 12 and the charging stand body 1, and the structure is simple.

[0092] The present application has been described above in conjunction with specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and are not intended to limit the scope of protection of the present application. Those skilled in the art may make various modifications and variations to the present application based on the spirit and principles of the present application, and such modifications and variations are also within the scope of the present application.

Claims

1. A charging connector, It is characterized in that The charging connector comprises: Charging station body; A plurality of terminals are arranged in the charging seat body; A hollow shell connected to the charging base body; A plurality of cables are inserted into the housing, and the end of each cable is detachably connected to the corresponding terminal through a terminal connector.

2. The charging connector according to claim 1, It is characterized in that The terminal connector includes a connecting head and a connecting rod connected to each other, the connecting rod is welded or crimped to the conductor of the cable, and the connecting head is threadedly connected to the terminal.

3. The charging connector according to claim 1, It is characterized in that The charging seat body and the shell are arranged vertically, and the terminal and the front end of the cable are arranged vertically.

4. The charging connector according to claim 1, It is characterized in that The charging connector further includes a shielding shell disposed in the housing, and at least one of the cables passes through the shielding shell.

5. The charging connector according to claim 4, It is characterized in that The shielding shell has a first port and a second port, at least one of the cables passes through the shielding shell via the first port and the second port, the first port is sealingly engaged with the charging seat body, and the second port is sealingly engaged with the cable passing through the shielding shell.

6. The charging connector according to claim 5, It is characterized in that The cable has a shielding net, and the shielding net is electrically connected to the shielding shell.

7. The charging connector according to claim 5, It is characterized in that The plurality of cables include a charging cable and a data cable, the charging cable and the data cable pass through the shielding shell, and the charging cable and the data cable are sealed and joined to the second port through an insulator.

8. The charging connector according to claim 7, It is characterized in that The plurality of cables include a grounding wire, and the grounding wire is located outside the shielding shell.

9. The charging connector according to claim 8, It is characterized in that The shell has a first end and a second end opposite to each other, the first end of the shell is connected to the charging seat body, the second end of the shell is connected to an end cover, the end cover and the shell are sealed by a sealing gasket, the insulator passes through the sealing gasket and the end cover and is sealed with the sealing gasket, and the grounding wire passes through the sealing gasket and the end cover and is sealed with the sealing gasket.

10. The charging connector according to claim 1, It is characterized in that The charging seat body is detachably connected to the shell.

11. The charging connector according to claim 10, It is characterized in that The charging connector also includes a snap ring having two opposite ends, the two ends of the snap ring being rotatably connected to the charging seat body respectively, and a clamping block is provided on the outer wall of the shell, and the snap ring is clamped or separated from the clamping block by rotating the snap ring.

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