Encapsulation injection molding terminal structure of integrated charging socket

Abstract

The utility model discloses a rubber-coated injection molding terminal structure of an integrated charging socket, which relates to the technical field of charging sockets and comprises a panel, a rear cover is mounted on the panel, a direct current charging module and an alternating current charging module are integrated on the rear cover on the panel, the alternating current charging module comprises a plurality of cable lead-in terminals and loop terminals, and the cable lead-in terminals are connected with the loop terminals. The cable lead-in terminal is connected with an external lead-in cable, the cable lead-in terminal comprises a copper pipe and an insulating cap, the copper pipe is hollow, the insulating cap is injection-molded in the copper pipe, the structure of the loop terminal is the same as that of the cable lead-in terminal, the insulating cap is injection-molded in the hollow copper pipe to form a rubber-coated injection-molded terminal, and the rubber-coated injection-molded terminal is connected with the cable lead-in terminal. The rubber coating injection molding terminal is of a solid structure, the structural strength of the terminal is improved, the service life of the terminal is prolonged, meanwhile, through plastic injection molding filling, the cost is reduced while the structural strength of the terminal is improved, and the risk that a split type insulation cap is broken and falls off during assembly is avoided.

Description

Technical Field

[0001] This utility model relates to the field of charging socket technology, specifically to a rubber-coated injection-molded terminal structure for an integrated charging socket. Background Technology

[0002] Electric vehicles are gaining increasing attention from automakers due to their wide range of energy sources, quiet operation, and zero emissions, leading to the widespread launch of electric vehicles for home use. Currently, electric vehicle charging sockets commonly use AC / DC charging sockets, which include both AC and DC charging ports. The charging terminals of AC / DC charging sockets are primarily made of copper, and their structures fall into two categories: solid charging terminals, which are less prone to deformation and have high structural strength, but are more expensive; and hollow charging terminals, which, while reducing costs, have lower structural strength, are more susceptible to deformation, and have a shorter lifespan. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a rubber-coated injection molded terminal structure for an integrated charging socket, thereby solving the shortcomings of the prior art.

[0004] The purpose of this utility model is achieved through the following technical solution: an integrated charging socket with a rubber-coated injection-molded terminal structure, including a panel, a back cover installed on the panel, a DC charging module and an AC charging module integrated on the back cover, the AC charging module including multiple cable entry terminals and return terminals, the cable entry terminals connecting to externally introduced cables, the cable entry terminals including a copper tube and an insulating cap, the copper tube being hollow, the insulating cap being injection-molded inside the copper tube to form a rubber-coated integral structure, and the structure of the return terminals being the same as the structure of the cable entry terminals.

[0005] Furthermore, an AC circuit board is installed inside the panel. The AC circuit board has mounting holes at the positions of the corresponding circuit terminals. A conductive post is fixed to one end of the circuit terminal near the AC circuit board. Several arc-shaped spring pieces are fixed to the side wall of the conductive post. The arc-shaped spring pieces are evenly distributed around the circumference of the conductive post. The arc-shaped spring pieces are interference-fitted into the mounting holes by their own deformation.

[0006] Furthermore, the rear cover has a through-hole for cable entry, through which the cable passes and connects to the cable entry terminal. Multiple elastic teeth are fixed inside the cable entry hole, and the multiple elastic teeth are evenly distributed around the circumference of the cable entry hole. A step is formed on the copper tube, and the elastic teeth engage with the step on the copper tube.

[0007] Furthermore, thermally conductive silicone is fitted onto the copper tube, and the thermally conductive silicone contacts the AC circuit board.

[0008] Furthermore, the AC circuit board is connected to a mounting plate by screws, and a sealing plate is fixed on the mounting plate. The sealing plate has sealing holes for cable entry terminals and return terminals to pass through, and both the cable entry terminals and return terminals are interference-fitted with the sealing holes.

[0009] Furthermore, a T-shaped sealing ring is interference-fitted into the cable inlet hole, and the T-shaped sealing ring is interference-fitted onto the cable.

[0010] Furthermore, a tail cover is installed at the end of the rear cover away from the panel. The tail cover has a through hole for the cable to pass through. A boss is fixed on the side wall of the rear cover. An installation groove is opened on the side wall of the tail cover. The boss is adapted to the installation groove.

[0011] Furthermore, the DC charging module includes a DC terminal, which is installed inside the rear cover. The structure of the DC terminal is the same as that of the cable entry terminal, and the DC cable passes through the rear cover and connects to the DC terminal.

[0012] The beneficial effects of this utility model are:

[0013] Insulating caps are injection molded inside hollow copper tubes to form coated injection molded terminals, making the coated injection molded terminals solid structures, improving the structural strength of the terminals, and extending the service life of the terminals. At the same time, plastic injection filling improves the structural strength of the terminals while reducing costs, and avoids the risk of breakage and detachment of the split insulating caps during assembly. Attached Figure Description

[0014] Figure 1 This is a partial structural diagram of the overmolded terminal structure of an integrated charging socket according to this utility model. Figure 1 ;

[0015] Figure 2 This is a partial structural diagram of the overmolded terminal structure of an integrated charging socket according to this utility model. Figure 2 ;

[0016] Figure 3 This is a schematic diagram of the return terminal in the overmolded terminal structure of an integrated charging socket according to this utility model;

[0017] Figure 4 This is a schematic diagram of the overmolded terminal structure of an integrated charging socket according to the present invention.

[0018] In the diagram, 1-panel, 2-back cover, 3-copper tube, 4-insulating cap, 5-AC circuit board, 6-mounting hole, 7-conductive post, 8-arc spring, 9-cable inlet hole, 10-elastic retaining teeth, 11-thermal conductive silicone, 12-mounting plate, 13-sealing plate, 14-sealing hole, 15-T-type sealing ring, 16-tail cover, 17-boob, 18-mounting slot, 19-DC terminal. Detailed Implementation

[0019] Example 1

[0020] like Figures 1 to 4 As shown, an integrated charging socket with a rubber-coated injection-molded terminal structure includes a panel 1, a back cover 2 mounted on the panel 1, and a DC charging module and an AC charging module integrated on the back cover 2. The AC charging module includes multiple cable entry terminals and return terminals. The cable entry terminals connect to externally introduced cables and include a copper tube 3 and an insulating cap 4. The copper tube 3 is hollow, and the insulating cap 13 is injection-molded inside the copper tube 3 to form a rubber-coated integral structure. The structure of the return terminal is the same as that of the cable entry terminal. The cable entry terminal and the return terminal cooperate with the charging hole of the charging plug to realize charging plug-in. The insulating cap 4 is injection-molded inside the hollow copper tube 3 to form a rubber-coated injection-molded terminal, making the rubber-coated injection-molded terminal a solid structure, improving the structural strength of the terminal, extending the service life of the terminal, and at the same time, the plastic injection filling improves the structural strength of the terminal while reducing the cost, avoiding the risk of breakage and detachment of the separate insulating cap assembly.

[0021] Furthermore, the DC charging module includes a DC terminal 19, which is installed inside the rear cover 2. The structure of the DC terminal 19 is the same as that of the cable entry terminal. The DC cable passes through the rear cover 2 and connects to the DC terminal 19, providing both AC and DC charging methods. The DC terminal 19 also uses a rubber-coated injection molded terminal, which improves structural strength while reducing costs.

[0022] Example 2

[0023] Based on Example 1, such as Figures 1 to 4 As shown, an AC circuit board 5 is installed inside the panel 1. The AC circuit board 5 has mounting holes 6 at the positions of the corresponding circuit terminals. A conductive post 7 is fixed to one end of the circuit terminal near the AC circuit board 5. Several arc-shaped spring pieces 8 are fixed to the side wall of the conductive post 7. The arc-shaped spring pieces 8 are evenly distributed around the circumference of the conductive post 7. The arc-shaped spring pieces 8 are interference-fitted into the mounting holes 6 by their own deformation. The circuit terminal is installed on the AC circuit board 5 by the deformation of the arc-shaped spring pieces 8. The installation is simple and quick.

[0024] Furthermore, the rear cover 2 has a through-hole 9 for cable entry. The cable passes through the cable entry hole 9 and connects to the cable entry terminal. Multiple elastic teeth 10 are fixed inside the cable entry hole 9. The multiple elastic teeth 10 are evenly distributed around the circumference of the cable entry hole 9. A step is formed on the copper tube 3. The elastic teeth 10 are engaged with the step of the copper tube 3. When the cable entry terminal is inserted into the cable entry hole 9, the elasticity of the elastic teeth 10 causes the elastic teeth 10 to pass through the step and abut against the bottom of the step, thereby quickly connecting the cable entry terminal to the rear cover 2.

[0025] Example 3

[0026] Based on Embodiment 2, thermally conductive silicone 11 is sleeved on the copper pipe 3. The thermally conductive silicone 11 contacts the AC circuit board 5 and dissipates heat between the cable inlet terminal and the AC circuit board 5 through the thermally conductive silicone 11.

[0027] Example 4

[0028] Based on Example 3, such as Figure 1 and Figure 2 As shown, the AC circuit board 5 is connected to the mounting plate 12 by screws. A sealing plate 13 is fixed on the mounting plate 12. The sealing plate 13 has a sealing hole 14 for the cable inlet terminal and the return terminal to pass through. The cable inlet terminal and the return terminal are both interference-fitted with the sealing hole 14, forming a sealing surface below the AC circuit board 5 to prevent moisture, dust, etc. from entering the back cover 2 through the panel 1. A T-shaped sealing ring 15 is interference-fitted into the cable inlet hole 9. The T-shaped sealing ring 15 is interference-fitted onto the cable, forming a sealing surface above the AC circuit board 5, thereby completely sealing the working environment of the AC circuit board 5.

[0029] Example 5

[0030] Based on Example 4, such as Figures 1 to 3 As shown, a tail cover 16 is installed at the end of the rear cover 2 away from the panel 1. The tail cover 16 has a through hole for the cable to pass through. A boss 17 is fixed on the side wall of the rear cover 2. An installation groove 18 is opened on the side wall of the tail cover 16. The boss 17 fits into the installation groove 18. The tail cover 16 is elastic. The elasticity of the tail cover 16 allows the boss 17 to fit into the installation groove 18. After removing the tail cover 16, the T-shaped sealing ring 15 can be installed into the cable inlet hole 9.

Claims

1. A rubber-coated injection-molded terminal structure for an integrated charging socket, characterized in that, Includes a panel (1), on which a back cover (2) is mounted, and on which a DC charging module and an AC charging module are integrated on the panel (1). The AC charging module includes multiple cable entry terminals and circuit terminals. The cable entry terminals are connected to externally introduced cables. The cable entry terminals include a copper tube (3) and an insulating cap (4). The copper tube (3) is hollow. The insulating cap (4) is injection molded inside the copper tube (3) to form an integral encapsulated structure. The structure of the circuit terminals is the same as that of the cable entry terminals.

2. The injection-molded terminal structure of an integrated charging socket according to claim 1, characterized in that, An AC circuit board (5) is installed inside the panel (1). The AC circuit board (5) has mounting holes (6) at the positions of the corresponding circuit terminals. A conductive post (7) is fixed to one end of the circuit terminal near the AC circuit board (5). Several arc-shaped spring pieces (8) are fixed to the side wall of the conductive post (7). The arc-shaped spring pieces (8) are evenly distributed around the circumference of the conductive post (7). The arc-shaped spring pieces (8) are interference-fitted into the mounting holes (6) by their own deformation.

3. The insulated injection-molded terminal structure of an integrated charging socket according to claim 2, characterized in that, The rear cover (2) has a through-hole (9) for cable introduction. The cable passes through the cable introduction hole (9) and connects to the cable introduction terminal. Multiple elastic teeth (10) are fixed inside the cable introduction hole (9). The multiple elastic teeth (10) are evenly distributed around the circumference of the cable introduction hole (9). A step is formed on the copper tube (3), and the elastic teeth (10) are engaged with the step on the copper tube (3).

4. The insulated injection-molded terminal structure of an integrated charging socket according to claim 3, characterized in that, Thermally conductive silicone (11) is sleeved on the copper tube (3), and the thermally conductive silicone (11) contacts the AC circuit board (5).

5. The overmolded terminal structure of an integrated charging socket according to claim 2, characterized in that, The AC circuit board (5) is connected to a mounting plate (12) by screws. A sealing plate (13) is fixed on the mounting plate (12). The sealing plate (13) has a sealing hole (14) for the cable inlet terminal and the return terminal to pass through. The cable inlet terminal and the return terminal are both interference fit with the sealing hole (14).

6. The injection-molded terminal structure of an integrated charging socket according to claim 3, characterized in that, A T-shaped sealing ring (15) is interference-fitted into the cable inlet hole (9), and the T-shaped sealing ring (15) is interference-fitted onto the cable.

7. The injection-molded terminal structure of an integrated charging socket according to claim 6, characterized in that, The rear cover (2) is equipped with a tail cover (16) at the end away from the panel (1). The tail cover (16) has a through hole for the cable to pass through. The side wall of the rear cover (2) is fixed with a boss (17). The side wall of the tail cover (16) has an installation slot (18). The boss (17) is adapted to the installation slot (18).

8. The insulated injection-molded terminal structure of an integrated charging socket according to claim 1, characterized in that, The DC charging module includes a DC terminal (19), which is installed inside the rear cover (2). The structure of the DC terminal (19) is the same as that of the cable inlet terminal. The DC cable passes through the rear cover (2) and connects to the DC terminal (19).

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