Alternating current and direct current double-circuit power supply device for new energy multipurpose vehicle

Abstract

The utility model relates to an AC / DC double-circuit power supply device used for a new energy multipurpose vehicle, comprising a DC inverter and an AC distribution box, the AC distribution box is internally provided with a main circuit breaker, a plurality of branch circuit breakers, an AC power supply change-over switch, an input / output high-voltage plug, a surge protector and a leakage protector, the input and output high-voltage plug comprises an inverter input connector, a mains supply input connector and a plurality of output cable connectors. The output end of the direct current inverter is connected with the inverter input connector, the inverter input connector and the commercial power input connector are connected with the output cable gland after passing through the alternating current power supply change-over switch, the main circuit breaker and the branch circuit breaker, and the surge protector and the leakage protector are connected between the main circuit breaker and the branch circuit breaker. According to the device, double-path access and automatic switching of the vehicle-mounted inverter and the mains supply can be realized, so that stable and continuous power supply of electric appliances on the vehicle is ensured, and meanwhile, the interface connector is optimized, so that the mains supply is safely and conveniently connected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile electric appliance auxiliary equipment, specifically relates to a kind of AC / DC dual-path power supply device for new energy multipurpose vehicle. BACKGROUND

[0002] Motor home, mobile selling car and other multipurpose vehicles need to use refrigerator, microwave oven, sound equipment, even television and other electric appliances. At present, the mainstream power design of the above vehicle model new energy (pure electric) vehicle is to convert high-voltage direct current of power battery into 220V alternating current power through inverter, and the output end is connected with a distribution box with main circuit breaker and several branch circuit breakers. Each branch circuit breaker in the distribution box is connected with plug strip for electric appliance power supply through cable. Although this kind of power distribution box can effectively protect the safety of lower end electric appliances, when applied to vehicle, it can only use alternating current output by vehicle-mounted inverter, and cannot be directly connected with mains for use. When the power of vehicle power battery is insufficient, the electric device must be turned off, and the power supply of electric appliance can be restored by manually starting inverter after charging the power battery. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide an AC / DC dual-path power supply device for new energy multipurpose vehicle, which can realize dual-path connection and automatic switching of vehicle-mounted inverter and mains power supply, thereby ensuring stable and continuous power supply of electric appliances on vehicle, optimizing interface connector, making the connection of mains safe and convenient, and expanding auxiliary power supply and remote communication functions.

[0004] The AC / DC dual-path power supply device for new energy multipurpose vehicle includes a direct current inverter for connecting vehicle-mounted power battery and an alternating current distribution box connected with the output end of the direct current inverter and used for connecting load plug strip, wherein,

[0005] The alternating current distribution box is provided with main circuit breaker, several branch circuit breakers, alternating current power switch and input and output high-voltage plug, as well as surge protector and leakage protector. The input and output high-voltage plug includes inverter input connector for connecting the output end of direct current inverter, mains input connector for connecting mains power supply and several output gland nuts for corresponding connection with each load plug strip. The output end of the direct current inverter is connected with the inverter input connector. The inverter input connector and mains input connector are connected with output gland nut through alternating current power switch, main circuit breaker and branch circuit breaker. The surge protector and leakage protector are connected between main circuit breaker and branch circuit breaker.

[0006] Preferably, the inverter input connector adopts REMII-Z2A-4-A connector.

[0007] Preferably, the mains input connector adopts LLT-M25-35003F2861 connector.

[0008] Preferably, the output gland head adopts a WS16KZ-4P connector.

[0009] The utility model discloses a kind of AC / DC dual-path power supply devices for new energy multipurpose vehicle, which can realize the double-path access and automatic switching of vehicle-mounted inverter and mains power supply, to ensure the stable, continuous power supply of on-vehicle appliances, simultaneously optimize interface connector, make the connection of mains safe and convenient, and expand auxiliary power supply and remote communication function. BRIEF DESCRIPTION OF DRAWINGS

[0010] The utility model discloses a kind of AC / DC dual-path power supply devices for new energy multipurpose vehicle, which can realize the double-path access and automatic switching of vehicle-mounted inverter and mains power supply, to ensure the stable, continuous power supply of on-vehicle appliances, simultaneously optimize interface connector, make the connection of mains safe and convenient, and expand auxiliary power supply and remote communication function.

[0011] Fig. 1 It is the logic structure and connection principle line frame diagram of the AC / DC dual-path power supply device for new energy multipurpose vehicle;

[0012] Fig. 2 It is the circuit schematic diagram of the AC / DC dual-path power supply device for new energy multipurpose vehicle;

[0013] Fig. 3 It is the internal structure schematic diagram of the AC / DC dual-path power supply device for new energy multipurpose vehicle.

[0014] In the drawing:

[0015] 1-direct current inverter, 2-alternating current distribution box;

[0016] 21-main circuit breaker, 22-branch circuit breaker, 23-alternating current power supply switch 24-input and output high-voltage plug 25-surge protector, 26-leakage protector;

[0017] 241-inverter input connector, 242-mains input connector, 243-output gland head. DETAILED DESCRIPTION

[0018] In the utility model, unless another explicit provision and limitation, term "installation", "link", "connection", "fix" and so on term should do broad sense understanding, for example, can be fixed connection, can be detachable connection, or integral;It can be directly connected, also can be indirectly connected through intermediate medium, can be the intercommunication of two elements or the interaction relationship of two elements.For ordinary skilled person in the art, the specific meaning of above-mentioned term in the utility model can be understood according to specific circumstances.

[0019] In the description of this utility model, it should be understood that the terms "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] The present invention will be further described below with specific embodiments, but the scope of protection of the present invention is not limited to the following embodiments.

[0021] Implementation method 1: such as Figs. 1 to 3 As shown, this AC / DC dual-circuit power supply device for new energy multi-purpose vehicles includes a DC inverter 1 for connecting to the vehicle's power battery and an AC distribution box 2 connected to the output of the DC inverter 1 for connecting to a load power strip. The AC distribution box 2 contains a main circuit breaker 21, several branch circuit breakers 22, an AC power switching switch 23, and input / output high-voltage plugs 24, as well as surge protectors 25 and leakage current protectors 26. The input / output high-voltage plugs 24 include a connector for connecting to the output of the DC inverter 1. The system includes an inverter input connector 241, an AC power input connector 242 for connecting to AC power supply, and several output glands 243 for corresponding connection to various load sockets. The output terminal of the DC inverter 1 is connected to the inverter input connector 241. The inverter input connector 241 and the AC power input connector 242 are connected to the output glands 243 after passing through the AC power switching switch 23, the main circuit breaker 21, and the branch circuit breaker 22. The surge protector 25 and the leakage current protector 26 are connected between the main circuit breaker 21 and the branch circuit breaker 22.

[0022] Implementation Method 2: The inverter input connector 241 of this AC / DC dual-circuit power supply device for new energy multi-purpose vehicles uses a REMII-Z2A-4-A connector. The AC input connector 242 uses an LLT-M25-35003F2861 connector. AC power does not require separate external wiring by the user; the LLT-M25-35003F2861 connector can be directly connected to AC power, making operation simple and safer. The output gland 243 uses a WS16KZ-4P connector. The WS16KZ-4P connector has 24V positive and negative terminals and CAN-H and CAN-L pins, enabling connection to an external 24V+CAN communication connector to expand auxiliary power supply and remote communication functions. The remaining structures and components are as described in Implementation Method 1 and will not be repeated.

[0023] Runtime: the 270-750VDC direct current output of the new energy vehicle power battery is converted into 220VAC alternating current power through a direct current inverter 1, and is output to the inverter input joint of the alternating current distribution box 2; the power input joint is directly connected to the mains; when the mains is working, the alternating current power switch disconnects the direct current inverter power supply, and after the mains is disconnected, the alternating current power switch is turned on to the direct current inverter, thereby realizing uninterrupted power supply of the load; the alternating current power switch, the surge protector are used for lightning protection, and the leakage protector is used for leakage protection, thereby ensuring the safety of alternating current power supply.

[0024] The AC / DC dual power supply device for the new energy multipurpose vehicle can realize dual access and automatic switching of the vehicle-mounted inverter and the mains power supply, thereby ensuring stable and continuous power supply of the electrical appliances on the vehicle, optimizing the interface connector, making the connection of the mains safe and convenient, and expanding the auxiliary power supply and remote communication functions.

[0025] The above description shows the main features, basic principles and advantages of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments or examples, and can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, the above embodiments or examples should be regarded as exemplary and non-limiting. The scope of the present application is defined by the appended claims, not the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0026] In addition, it should be understood that although the present application is described in the form of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A dual AC / DC power supply device for new energy multi-purpose vehicles, characterized in that: It includes a DC inverter (1) for connecting the vehicle's power battery and an AC distribution box (2) connected to the output of the DC inverter (1) for connecting the load power strip, wherein, The AC distribution box (2) is equipped with a main circuit breaker (21), several branch circuit breakers (22), an AC power switching switch (23), and input / output high-voltage plugs (24), as well as surge protectors (25) and leakage current protectors (26). The input / output high-voltage plugs (24) include an inverter input connector (241) for connecting to the output of the DC inverter (1), an AC power input connector (242) for connecting to AC mains power supply, and corresponding plugs for connecting to various loads. The DC inverter (1) has several output glands (243); the output end of the DC inverter (1) is connected to the inverter input connector (241), the inverter input connector (241) and the mains input connector (242) are connected to the output glands (243) after passing through the AC power switching switch (23), the main circuit breaker (21) and the branch circuit breaker (22), and the surge protector (25) and the leakage current protector (26) are connected between the main circuit breaker (21) and the branch circuit breaker (22).

2. The AC / DC dual-circuit power supply device for new energy multi-purpose vehicles according to claim 1, characterized in that: The inverter input connector (241) uses a REMII-Z2A-4-A connector.

3. The AC / DC dual-circuit power supply device for new energy multi-purpose vehicles according to claim 2, characterized in that: The mains input connector (242) uses an LLT-M25-35003F2861 connector.

4. The AC / DC dual-circuit power supply device for new energy multi-purpose vehicles according to claim 1, characterized in that: The output gland (243) uses a WS16KZ-4P connector.

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