Vehicle-mounted charger with external interface integrated design

Abstract

The utility model provides a vehicle-mounted charger with an integrated external interface. The vehicle-mounted charger with the external interface integrated design comprises a shell, a circuit board used for completing filtering, direct current and alternating current conversion and outputting direct current is installed in the shell, a plastic base is fixed to the side wall of the shell through screws, a plurality of interfaces are installed on the surface of the plastic base, copper bars are installed in the interfaces, and the copper bars are fixed to the side wall of the shell through screws. The copper bar is electrically connected with the circuit board through a metal elastic sheet; a connecting plate is mounted on the side wall of the circuit board, and the copper bar is clamped in the connecting plate; the interior of the connecting plate is connected with a metal elastic sheet in a sliding manner, and the metal elastic sheet is clamped with a through hole in the surface of the copper bar. The vehicle-mounted charger with the external interface integrated design provided by the utility model has the advantages that the external interface is standardized, and the weight and the occupied space of the vehicle-mounted charger are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted chargers, and in particular to a vehicle-mounted charger with an integrated external interface design. Background Art

[0002] In response to the country's call for energy conservation and environmental protection, new energy vehicles have emerged, promoting the rapid development of new energy vehicle technology. As a core component of new energy vehicles, on-board chargers have the ability to safely and automatically charge electric vehicle power batteries. Based on the data provided by the battery management system, the charger can dynamically adjust the charging current or voltage parameters, perform corresponding actions, and complete the charging process. The level of on-board charging technology directly affects the performance and life of battery charging, and puts forward higher requirements for its reliability, standardization, cost, and assembly manufacturing feasibility.

[0003] The on-board chargers used in existing new energy vehicles require electrical connections and signal transmission with external devices through multiple independent connectors, which causes the on-board chargers to take up space and be too heavy, thereby reducing the cruising range of new energy vehicles.

[0004] Therefore, it is necessary to provide a new on-board charger with integrated external interface design to solve the above technical problems. Utility Model Content

[0005] The technical problem solved by the utility model is to provide a vehicle-mounted charger with an integrated design of an external interface with standardized external interface, which reduces the weight and occupied space of the vehicle-mounted charger.

[0006] In order to solve the above technical problems, the utility model provides an on-board charger with an integrated external interface design, including: a shell, a circuit board for completing filtering, DC-AC conversion and outputting DC power is installed inside the shell, and a plastic base is fixed to the side wall of the shell by screws, a plurality of interfaces are installed on the surface of the plastic base, a copper bus is installed inside the interface, and the copper bus is electrically connected to the circuit board through a metal spring; a connecting plate is installed on the side wall of the circuit board, and the copper bus is engaged with the inside of the connecting plate; a metal spring is slidably connected to the inside of the connecting plate, and the metal spring engages with the through hole on the surface of the copper bus.

[0007] Preferably, an upper cover is installed on the top of the housing, and the upper cover contacts the surface of the circuit board.

[0008] Preferably, a sealing ring is installed on the side wall of the plastic base, and the sealing ring contacts the side wall of the shell.

[0009] Preferably, a spring is installed inside the connecting plate, and the spring is connected to the side wall of the metal spring.

[0010] Preferably, the side wall of the connecting plate is threadedly connected to the screw rod, and the screw rod abuts against the side wall of the metal spring sheet.

[0011] Compared with the related art, the on-board charger with integrated external interface design provided by the utility model has the following beneficial effects:

[0012] The utility model provides a vehicle charger with an integrated external interface design. The plastic base is installed on the side wall of the shell, the installation method of the decentralized connector is cancelled, the shells of each connector are cancelled, the plastic base and the interface are integrated by injection molding, and the integrated components can be used as standard modules in different products, further cost sharing, and the external interface is composed of the plastic base, the copper busbar and other components, the components are small in size, easy to assemble, and the space occupied by the shell is reduced; traditional products need to be disassembled and assembled one by one when dismantling, and the external interface can be removed as a whole in the device and will not affect the secondary assembly after maintenance, which improves the convenience of assembly and maintenance; the device designs multiple component shells into one, reduces the number of parts, and reduces the cost of component manufacturing and assembly. At the same time, only a few screws are needed to fix the external interface to the shell during installation, and the number of mounting screws is reduced, which reduces the overall weight of the device, reduces the cost, reduces the installation process, and improves the vibration reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A structural schematic diagram of a preferred embodiment of a vehicle-mounted charger with an integrated external interface design provided by the utility model;

[0014] Figure 2 for Figure 1 A top view of the housing structure shown;

[0015] Figure 3 for Figure 1 The schematic diagram of the shell and plastic base structure shown;

[0016] Figure 4 for Figure 1 The front structural diagram of the plastic base shown;

[0017] Figure 5 for Figure 1 The schematic diagram of the back structure of the plastic base shown;

[0018] Figure 6 for Figure 5 The schematic diagram of the sealing ring structure shown;

[0019] Figure 7 for Figure 2 Schematic diagram of the internal structure of the connecting plate shown.

[0020] Numbers in the figure: 1, shell, 2, upper cover, 3, plastic base, 4, interface, 5, copper bus, 51, through hole, 6, connecting plate, 7, circuit board, 8, sealing ring, 9, metal spring, 10, spring, 11, screw. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 .in Figure 1 A structural schematic diagram of a preferred embodiment of a vehicle-mounted charger with an integrated external interface design provided by the utility model; Figure 2 for Figure 1 A top view of the housing structure shown; Figure 3 for Figure 1 The schematic diagram of the shell and plastic base structure shown; Figure 4 for Figure 1 The front structural diagram of the plastic base shown; Figure 5 for Figure 1 The schematic diagram of the back structure of the plastic base shown; Figure 6 for Figure 5 The schematic diagram of the sealing ring structure shown; Figure 7 for Figure 2 The schematic diagram of the internal structure of the connecting board shown. One of the on-board chargers with an integrated external interface design includes: a housing 1, a circuit board 7 for completing filtering, DC-AC conversion and outputting DC power is installed inside the housing 1, and a plastic base 3 is fixed to the side wall of the housing 1 by screws, a plurality of interfaces 4 are installed on the surface of the plastic base 3, a copper bus 5 is installed inside the interface 4, and the external interface is composed of the plastic base 3, the copper bus 2 and other parts, and the parts are small in size, easy to assemble, and reduce the space occupied by the housing; when dismantling traditional products, the parts need to be disassembled and assembled one by one, and in this device, the external interface can be removed as a whole and the secondary assembly will not be affected after maintenance, which improves the convenience of assembly and maintenance; the external interface is installed on the side wall of the housing 1, the installation method of the distributed connector is cancelled, and the housings of each connector are cancelled. The plastic base 3 and the interface 4 are integrated by injection molding design, and the integrated parts can be used as standard modules in different products, further sharing the cost.

[0023] The copper bar 5 is electrically connected to the circuit board 7 through the metal spring 9; the side wall of the circuit board 7 is installed with a connecting plate 6, and the inside of the connecting plate 6 engages with the copper bar 5; the inside of the connecting plate 6 is slidably connected to the metal spring 9, and the metal spring 9 engages with the through hole 51 on the surface of the copper bar 5; the inside of the connecting plate 6 is installed with a spring 10, and the spring 10 links the side wall of the metal spring 9; the side wall of the connecting plate 6 is threadedly connected to the screw 11, and the screw 11 contacts the side wall of the metal spring 9. When the copper bar 5 is inserted into the inside of the connecting plate 6, the connecting plate is rotated The screw 11 on the side wall of the copper bar 5 presses the metal spring 9 downward, so that the metal spring 9 with an arc-shaped side wall stretches the spring 10 to enter the inside of the through hole 51. As the screw 11 rotates downward, the screw 11 squeezes the metal spring 9, so that the metal spring 9 deforms and squeezes the side wall of the copper bar 5, increasing the contact area between the copper bar 5 and the metal spring 9. At the same time, the metal spring 9 engages the copper bar 5 and fixes the copper bar 5 inside the connecting plate 6 to avoid the metal spring 9 from being separated from the copper bar 5 during use and prevent poor contact. When disassembling the copper bar 5, the screw 11 is rotated upward, the screw 11 moves upward, and the spring 10 contracts to drive the metal spring 9 to be separated from the copper bar 5, so as to facilitate the removal of the copper bar 5.

[0024] An upper cover 2 is installed on the top of the housing 1 , and the upper cover 2 contacts the surface of the circuit board 7 , so that the upper cover 2 protects the circuit board 7 .

[0025] A sealing ring 8 is installed on the side wall of the plastic base 3, and the sealing ring 8 contacts the side wall of the shell 1. When the plastic base 3 is installed on the side wall of the shell 1 using screws, the plastic base 3 and the shell 1 squeeze the sealing ring 8, and the sealing ring 8 increases the sealing between the plastic base 3 and the shell 1.

[0026] The device is composed of the shell 1, the circuit board 7 and the external interface, which reduces the number of parts inside the device, reduces the cost, and reduces the cost of parts manufacturing and assembly; and the number of mounting screws of the device is reduced, which reduces the overall weight of the product, reduces the cost, reduces the number of installation processes, and improves vibration reliability.

[0027] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A vehicle charger with an integrated external interface design, characterized in that: include: A housing (1), a circuit board (7) for completing filtering and DC-AC conversion and outputting DC power is installed inside the housing (1), and a plastic base (3) is fixed to the side wall of the housing (1) by screws, a plurality of interfaces (4) are installed on the surface of the plastic base (3), a copper busbar (5) is installed inside the interface (4), and the copper busbar (5) is electrically connected to the circuit board (7) via a metal spring (9); A connecting plate (6) is installed on the side wall of the circuit board (7), and the copper busbar (5) is engaged inside the connecting plate (6); a metal spring sheet (9) is slidably connected inside the connecting plate (6), and the metal spring sheet (9) is engaged with a through hole (51) on the surface of the copper busbar (5).

2. The on-board charger with integrated external interface design according to claim 1, characterized in that: An upper cover (2) is installed on the top of the housing (1), and the upper cover (2) contacts the surface of the circuit board (7).

3. The on-board charger with integrated external interface design according to claim 1, characterized in that: A sealing ring (8) is installed on the side wall of the plastic base (3), and the sealing ring (8) contacts the side wall of the housing (1).

4. The on-board charger with integrated external interface design according to claim 1, characterized in that: A spring (10) is installed inside the connecting plate (6), and the spring (10) is connected to the side wall of the metal spring sheet (9).

5. The on-board charger with integrated external interface design according to claim 1, characterized in that: The side wall of the connecting plate (6) is threadedly connected to the screw rod (11), and the screw rod (11) contacts the side wall of the metal spring sheet (9).

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