Charging power distribution device and system and vehicle

Abstract

The invention provides a charging power distribution device, a charging power distribution system and a vehicle. The first layer comprises an AC input pre-charging and EMI filtering module, a PFC circuit and bus capacitor module, a PFC rectification MOS module, a PFC inductance module, an LLC primary side MOS module, an LLC transformer and filtering module, an output filtering module, a DC / DC input primary side module and a DC / DC output transformer and rectifier bridge output module. Based on various vehicle types, the most reasonable shared structure is designed, so that the charging power distribution device can be adapted to various vehicle types. And by specifying the type of each module in the vehicle-mounted charger and the DC / DC converter, the types of devices are reduced, the reliability and the scale application are improved, and the part cost and the management cost are reduced on the premise of normal working performance of the automobile charging and power distribution system.

Description

Technical Field

[0001] The present application relates to the technical field of automobile charging and power distribution, and in particular to a charging and power distribution device, system and vehicle. Background Art

[0002] With the consumption of non-renewable resources and the development of science and technology, electric vehicles have emerged and are becoming more and more popular. In electric vehicles, the on-board charging and distribution system converts the AC or DC power of the grid into DC power to charge the power battery in the vehicle and power the air conditioning compressor, electronic heater and other equipment. The charging and distribution system mainly includes three devices: on-board charger, high-voltage distribution box and DC / DC converter.

[0003] In the related art, the functions of the three devices, namely, an on-board charger, a high-voltage distribution box and a DC / DC converter, are usually physically integrated or integrated through circuit board integrated circuit components. Specifically, the on-board charger, the high-voltage distribution box and the DC / DC converter are integrated on a large scale on a circuit board.

[0004] However, different vehicle models require different power levels, and the relevant technology only stipulates large-scale installation areas for three devices. For different vehicle models requiring different power, it is necessary to design a variety of different charging and distribution systems, which leads to a wide variety of devices, long development time, and high management costs.

[0005] It should be pointed out that the information disclosed in the background technology section of this application is only intended to deepen the understanding of the general background technology of this application, and should not be regarded as an admission or suggestion in any form that the information constitutes prior art already known to those skilled in the art. Summary of the invention

[0006] In view of this, the present application provides a charging and distribution device, system and vehicle, so as to solve the problem in the prior art that for different vehicle models requiring different power, a variety of different charging and distribution systems need to be designed, resulting in a wide variety of devices, long development time and high management costs.

[0007] In a first aspect, an embodiment of the present application provides a charging power distribution device, wherein the charging power distribution device includes a first layer, and the first layer includes:

[0008] an AC input pre-charging and EMI filtering module, configured to receive a first AC power, filter the first AC power, generate and output a second AC power, wherein the first AC power is a grid AC power;

[0009] The PFC circuit and bus capacitor module are used to receive the second alternating current output by the AC input pre-charging and EMI filtering module, filter the second alternating current, generate and output a third alternating current;

[0010] A PFC rectifier MOS module, used for receiving the third alternating current output by the PFC circuit and the bus capacitor module, rectifying the third alternating current, generating and outputting a fourth alternating current;

[0011] A PFC inductor module is used to store energy so that the voltage of the PFC circuit, the bus capacitor module and the PFC rectifier MOS module is stable and operates normally;

[0012] LLC primary MOS module, used to control the on or off of the LLC circuit;

[0013] An LLC transformer and filter module, configured to receive the fourth alternating current output by the PFC rectifier MOS module when the LLC circuit is turned on, convert the fourth alternating current into a fifth alternating current through a resonant circuit, filter the fifth alternating current, and generate and output a sixth alternating current;

[0014] an output filtering module, configured to receive the sixth alternating current outputted by the LLC transformer and the filtering module, filter the sixth alternating current, and generate and output a first direct current;

[0015] A DC / DC input primary side module, used for receiving the sixth alternating current output by the LLC transformer and the filter module, converting the sixth alternating current into a seventh alternating current, and outputting the seventh alternating current;

[0016] The DC / DC output transformer and rectifier bridge output module are used to receive the seventh alternating current output by the DC / DC input primary module, rectify the seventh alternating current, and generate and output a second direct current.

[0017] In the embodiment of the present application, the most reasonable common structure is designed based on various vehicle models, so that the charging and distribution device can be adapted to various vehicle models. And by specifying the type of each module in the on-board charger and DC / DC converter, it is ensured that the types of components are reduced and the management cost is reduced under the premise of normal operation of the vehicle charging and distribution system.

[0018] In a possible implementation, the charging power distribution device further includes a second layer, and the second layer includes:

[0019] High voltage distribution module, used to distribute and manage the electrical energy of the vehicle's high voltage system.

[0020] In the embodiment of the present application, the high-voltage power distribution module is placed separately from the on-board charger and the DC / DC converter. It is understandable that different types of vehicles require different high-voltage power distribution modules. Through the device provided in the embodiment of the present application, for some vehicles that require special high-voltage power distribution modules, the high-voltage power distribution module can be replaced separately without affecting other modules.

[0021] In a possible implementation, the first layer and the second layer of the charging power distribution device are detachable.

[0022] In the embodiment of the present application, the first layer and the second layer of the charging distribution device are detachable. It can be understood that for some vehicle models, placing the first layer and the second layer of the charging distribution device separately may be more conducive to the routing and spatial layout of the entire vehicle. By setting the second layer and the first layer to be detachable, the charging distribution device can be adapted to a wider variety of vehicle models.

[0023] In a possible implementation, the coolant inlet, the coolant outlet, and the interface of the charging power distribution device are located on the same side, and the interface is used for cooling and receiving and / or outputting electrical energy.

[0024] In the embodiment of the present application, the coolant inlet, coolant outlet and interface of the charging power distribution device are located on the same side. It is understandable that for most vehicle models, the wiring inside the vehicle connected to the charging power distribution device is usually located on the same side. Therefore, setting the coolant inlet, coolant outlet and interface of the charging power distribution device on the same side is more conducive to the adaptation of the charging power distribution device to a variety of vehicle models and more conducive to the wiring and layout of the entire vehicle.

[0025] In a possible implementation, the first layer includes a supporting shell, which is divided into a first cavity, a second cavity, and a third cavity by a cooling liquid channel, the second cavity is located between a cooling liquid inlet channel and a cooling liquid outflow channel, the first cavity is located between the cooling liquid inlet channel and the supporting shell, and the third cavity is located between the cooling liquid outflow channel and the supporting shell.

[0026] In the embodiment of the present application, the coolant channel divides the space in the supporting shell into three cavities, so that the electronic devices can be placed in the cavity, and the coolant channel is divided into a coolant inflow channel and a coolant outflow channel. The electronic devices in each cavity can be closer to the coolant channel, which is more conducive to heat dissipation. In addition, the coolant channel in the embodiment of the present application is narrow, but the three-dimensional design is adopted, which can increase the heat dissipation area on the basis of reducing the size and volume, so that the power density is increased by 25%, the weight is reduced by 20%, and the efficiency is increased by about 1%.

[0027] In a possible implementation, the first cavity is provided with a first AC charging port, and the AC input pre-charging and EMI filtering module is installed in the first cavity near the first AC charging port and near the supporting shell;

[0028] The PFC circuit and busbar capacitor module are installed between the AC input pre-charging and EMI filtering module and the supporting shell in the first cavity;

[0029] The PFC rectifier MOS module is installed in the first cavity between the AC input pre-charging and EMI filtering module and the coolant inflow channel;

[0030] The LLC primary MOS module is installed in the first cavity between the PFC circuit and bus capacitor module and the coolant inflow channel;

[0031] The LLC transformer and the filter module are installed in the second cavity, and three sides of the LLC transformer and the filter module are adjacent to the coolant channel;

[0032] The DC / DC output transformer and the rectifier bridge output module are installed in the second cavity near the supporting shell;

[0033] The PFC inductor module is installed in the second cavity, between the LLC transformer and filter module and the DC / DC output transformer and rectifier bridge output module;

[0034] The output filter module is installed in the third cavity, and three sides of the output filter module are adjacent to the supporting shell;

[0035] The DC / DC input primary module is installed in the third cavity between the output filter module and the coolant outflow channel.

[0036] In the embodiment of the present application, the modules in the on-board charger and the DC / DC converter are placed in different cavities according to the different functions and heat dissipation conditions of each module, so as to improve the heat dissipation efficiency of each module while ensuring the normal operation of multiple modules. In addition, through this standardized layout and design, the types of various components can be reduced, thereby reducing management costs and improving the utilization rate of components.

[0037] In a possible implementation, the PFC inductor module includes: a first PFC inductor module and a second PFC inductor module, which are used to store energy so that the voltage of the PFC circuit, the bus capacitor module, and the PFC rectifier MOS module are stable and work normally.

[0038] In the embodiment of the present application, the PFC inductor module includes a first PFC inductor module and a second PFC inductor module, both of which are used to store energy, so that the voltage of the PFC circuit and the bus capacitor module and the PFC rectifier MOS module are stable and work normally. It can be understood that more energy can be stored through the two-part inductor module.

[0039] In a possible implementation, the first PFC inductor module is installed in the second cavity, between the LLC transformer and filter module and the DC / DC output transformer and rectifier bridge output module;

[0040] The second PFC inductor module is installed in the third cavity, between the output filter module, the coolant outflow channel and the DC / DC input primary module.

[0041] In the embodiment of the present application, the first PFC inductor module and the second PFC inductor module are installed in different positions respectively, and both the first PFC inductor module and the second PFC inductor module are close to the cooling liquid channel, which is more conducive to the heat dissipation of the electronic device.

[0042] In a second aspect, an embodiment of the present application provides a charging and power distribution system, the charging and power distribution system comprising:

[0043] The charging power distribution device described in the first aspect.

[0044] In a third aspect, an embodiment of the present application provides a vehicle, the vehicle comprising:

[0045] The charging and distribution system described in the second aspect.

[0046] In summary, based on a variety of vehicle models, the most reasonable common structure is designed so that the charging and distribution device can be adapted to a variety of vehicle models. And by specifying the type of each module in the on-board charger and DC / DC converter, the types of components are reduced, the reliability and scale application are improved, and the parts cost and management cost are reduced under the premise of the normal working performance of the vehicle charging and distribution system. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0048] Figure 1 A schematic diagram of a charging and power distribution device in a related technology provided in an embodiment of the present application;

[0049] Figure 2 A schematic diagram of the structure of the first layer of a charging and power distribution device provided in an embodiment of the present application;

[0050] Figure 3 A schematic diagram of the cavity arrangement of the first layer of a charging and power distribution device provided in an embodiment of the present application;

[0051] Figure 4 An interface diagram of a charging power distribution device provided in an embodiment of the present application;

[0052] Figure 5 A schematic diagram of a hierarchical structure of a charging and power distribution device provided in an embodiment of the present application;

[0053] Figure 6 A schematic diagram of the topological relationship of a charging and power distribution device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0054] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0055] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0056] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0057] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0058] With the consumption of non-renewable resources and the development of technology, hybrid vehicles have emerged and are becoming more and more popular. In electric vehicles, the on-board charging and distribution system converts the AC or DC power of the grid into DC power to charge the power battery in the vehicle and power the air conditioning compressor, electronic heater and other equipment. The charging and distribution system mainly includes three devices: on-board charger, high-voltage distribution box and DC / DC converter.

[0059] In the related art, the functions of the three devices, namely, an on-board charger, a high-voltage distribution box and a DC / DC converter, are usually physically integrated or integrated through circuit board integrated circuit components. Specifically, the on-board charger, the high-voltage distribution box and the DC / DC converter are integrated on a large scale on a circuit board.

[0060] To facilitate understanding, an embodiment of the present application provides a schematic diagram of a charging and power distribution device in a related technology.

[0061] See also Figure 1 , is a schematic diagram of a charging and power distribution device in a related technology provided in an embodiment of the present application. Figure 1 As shown in a in the figure, it is a 6.6kW charging distribution device in the related art, in which the on-board charger, high-voltage distribution box and DC / DC converter are physically integrated into a charging distribution box. Obviously, this is only suitable for a certain type of vehicle and cannot be adapted to multiple types of vehicles. In addition, Figure 1 As shown in b, it is a single DC / DC module. It can be understood that placing the DC / DC module separately from the on-board charger and the high-voltage distribution box is only suitable for some vehicles. Placing the DC / DC module separately will cause a large space to be occupied in the vehicle, which is not applicable to some compact vehicles.

[0062] In summary, different vehicle models require different power levels. The relevant technology only stipulates large-scale installation areas for three devices. For different vehicle models that require different power levels, it is necessary to design a variety of different charging and distribution systems, which leads to a wide variety of devices, long development time, and high management costs.

[0063] In response to the above problems, the present application provides a charging and distribution device, system and vehicle, and designs the most reasonable common structure based on a variety of vehicle models, so that the charging and distribution device can be adapted to a variety of vehicle models. And by specifying the type of each module in the on-board charger and DC / DC converter, it is ensured that the types of components are reduced and the management cost is reduced under the premise of the normal operation of the vehicle charging and distribution system. The following is a detailed description in conjunction with the accompanying drawings and specific embodiments.

[0064] In the embodiment of the present application, the charging distribution device is divided into a first layer and a second layer, and the first layer and the second layer are detachable. It can be understood that for some vehicle models, placing the first layer and the second layer of the charging distribution device separately may be more conducive to the routing and spatial layout of the entire vehicle. By setting the second layer and the first layer to be detachable, the charging distribution device provided in the embodiment of the present application can be adapted to a wider variety of vehicle models.

[0065] The second layer of the charging power distribution device includes a high-voltage power distribution module, which is used to distribute and manage the electrical energy of the vehicle's high-voltage system. It is understandable that different types of vehicles require different high-voltage power distribution modules. Through the device provided in the embodiment of the present application, for some vehicles that require special high-voltage power distribution modules, the high-voltage power distribution module can be replaced separately without affecting other modules.

[0066] See also Figure 2 , is a schematic diagram of the structure of the first layer of a charging and power distribution device provided in an embodiment of the present application. Figure 2As shown, the charging and distribution device includes an AC input pre-charging and EMI filtering module 201, a PFC circuit and bus capacitor module 202, a PFC rectifier MOS module 203, a PFC inductor module 204, an LLC primary MOS module 205, an LLC transformer and filter module 206, an output filter module 207, a DC / DC input primary module 208, and a DC / DC output transformer and rectifier bridge output module 209. Among them, the PFC inductor module 204 includes a first PFC inductor module 2041 and a second PFC inductor module 2042. These components communicate through one or more buses. Those skilled in the art can understand that the structure of the electronic device shown in the figure does not constitute a limitation on the embodiment of the present application. It can be a bus structure or a star structure, and can also include more or fewer components than shown in the figure, or combine certain components, or arrange components differently.

[0067] The AC input pre-charging and EMI filtering module 201 is used to receive a first AC power, filter the first AC power, generate and output a second AC power, and the first AC power is a grid AC power;

[0068] The PFC circuit and bus capacitor module 202 is used to receive the second alternating current output by the AC input pre-charging and EMI filtering module 201, and filter the second alternating current to generate and output a third alternating current;

[0069] The PFC rectifier MOS module 203 is used to receive the third alternating current output by the PFC circuit and the bus capacitor module 202, and rectify the third alternating current to generate and output a fourth alternating current;

[0070] The PFC inductor module 204 is used to store energy so that the voltage of the PFC circuit, the bus capacitor module 202 and the PFC rectifier MOS module 203 are stable and work normally;

[0071] LLC primary MOS module 205, used to control the on or off of the LLC circuit;

[0072] The LLC transformer and filter module 206 is used to receive the fourth alternating current output by the PFC rectifier MOS module 203 when the LLC circuit is turned on, convert the fourth alternating current into a fifth alternating current through a resonant circuit, filter the fifth alternating current, and generate and output a sixth alternating current;

[0073] an output filtering module 207, configured to receive the sixth alternating current outputted by the LLC transformer and filtering module 206, filter the sixth alternating current, generate and output a first direct current;

[0074] A DC / DC input primary side module 208, configured to receive the sixth alternating current output by the LLC transformer and filter module 206, convert the sixth alternating current into a seventh alternating current, and output the seventh alternating current;

[0075] The DC / DC output transformer and rectifier bridge output module 209 is used to receive the seventh alternating current output by the DC / DC input primary module 208, rectify the seventh alternating current, and generate and output a second direct current.

[0076] In the embodiment of the present application, the most reasonable common structure is designed based on various vehicle models, so that the charging and distribution device can be adapted to various vehicle models. And by specifying the type of each module in the on-board charger and DC / DC converter, it is ensured that the types of components are reduced and the management cost is reduced under the premise of normal operation of the vehicle charging and distribution system.

[0077] In addition, the PFC inductor module 204 includes a first PFC inductor module 2041 and a second PFC inductor module 2042, both of which are used to store energy, so that the voltage of the PFC circuit and the bus capacitor module 202 and the PFC rectifier MOS module 203 are stable and work normally. It can be understood that more energy can be stored through the two-part inductor module.

[0078] In an embodiment of the present application, the first layer of the charging distribution device includes a supporting shell, which is divided into a first cavity, a second cavity and a third cavity by a cooling liquid channel. The second cavity is located between the cooling liquid inlet channel and the cooling liquid outflow channel, the first cavity is located between the cooling liquid inlet channel and the supporting shell, and the third cavity is located between the cooling liquid outflow channel and the supporting shell.

[0079] It can be understood that the coolant channel divides the space in the support shell into three cavities, so that the electronic devices can be placed in the cavity, and the coolant channel is divided into a coolant inflow channel and a coolant outflow channel. The electronic devices in each cavity can be closer to the coolant channel, which is more conducive to heat dissipation. In addition, the coolant channel in the embodiment of the present application is narrow, but the three-dimensional design is adopted, which can increase the heat dissipation area on the basis of reducing the size and volume, so that the power density is increased by 25%, the weight is reduced by 20%, and the efficiency is increased by about 1%.

[0080] To facilitate understanding, an embodiment of the present application provides a schematic diagram of the cavity layout of the first layer of a charging and power distribution device.

[0081] See also Figure 3 , is a schematic diagram of the cavity arrangement of the first layer of a charging and power distribution device provided in an embodiment of the present application. Figure 3As shown, the support shell 300 is divided into three cavities by the coolant channel. When the first coolant flow port 305 is a coolant flow outlet and the second coolant flow port 306 is a coolant flow inlet, the second cavity 302 is located between the coolant inlet channel and the coolant outlet channel, the first cavity 301 is located between the coolant inlet channel and the support shell 300, and the third cavity 303 is located between the coolant outlet channel and the support shell 300. Of course, according to actual needs, the first coolant flow port 305 can be set as the coolant inlet, the second coolant flow port 306 can be set as the coolant flow outlet, or the layout of the three cavities can be set to other layouts, and the embodiment of the present application does not impose specific restrictions on this.

[0082] according to Figure 2 and Figure 3 It can be seen that the layout of each module in the supporting shell is as follows.

[0083] In a possible implementation, the first cavity 301 is provided with a first AC charging port, and the AC input pre-charging and EMI filtering module 201 is installed in the first cavity 301 near the first AC charging port and near the supporting shell;

[0084] The PFC circuit and busbar capacitor module 202 are installed in the first cavity 301 between the AC input pre-charge and EMI filter module 201 and the supporting shell;

[0085] The PFC rectifier MOS module 203 is installed in the first cavity 301 between the AC input pre-charge and EMI filter module 201 and the coolant inflow channel;

[0086] LLC primary MOS module 205 is installed in the first cavity 301 between the PFC circuit and bus capacitor module 202 and the coolant inflow channel;

[0087] The LLC transformer and filter module 206 is installed in the second cavity 302, and three sides of the LLC transformer and filter module 206 are adjacent to the coolant channel;

[0088] The DC / DC output transformer and the rectifier bridge output module 209 are installed in the second cavity 302 near the support shell;

[0089] The PFC inductor module 204 is installed in the second cavity 302, between the LLC transformer and filter module 206 and the DC / DC output transformer and rectifier bridge output module 209;

[0090] The output filter module 207 is installed in the third cavity 303, and three sides of the output filter module 207 are adjacent to the supporting shell;

[0091] The DC / DC input primary module 208 is installed in the third cavity 303 between the output filter module 207 and the coolant outflow channel.

[0092] In a possible implementation, the PFC inductor module 204 includes a first PFC inductor module 2041 and a second PFC inductor module 2042. The first PFC inductor module 2041 is installed in the second cavity, between the LLC transformer and filter module 206 and the DC / DC output transformer and rectifier bridge output module 209; the second PFC inductor module 2042 is installed in the third cavity, between the output filter module 207, the coolant outflow channel and the DC / DC input primary module 208.

[0093] Through the above design, the modules in the on-board charger and the DC / DC converter are placed in different cavities according to the different functions and heat dissipation conditions of each module, so as to improve the heat dissipation efficiency of each module while ensuring the normal operation of multiple modules. In addition, through this standardized layout and design, the types of various components can be reduced, thereby reducing management costs and improving the utilization rate of components. In addition, the first PFC inductor module 2041 and the second PFC inductor module 2042 are installed in different positions, and the first PFC inductor module 2041 and the second PFC inductor module 2042 are close to the coolant channel, which is more conducive to the heat dissipation of electronic devices.

[0094] In an embodiment of the present application, the coolant inlet, coolant outlet and interface of the charging and power distribution device are located on the same side, and the interface is used to receive and / or output electrical energy.

[0095] To facilitate understanding, an embodiment of the present application provides an interface diagram of a charging power distribution device.

[0096] See also Figure 4, is a schematic diagram of the interface of a charging power distribution device provided in an embodiment of the present application. It includes: a first interface 401, a second interface 402, a third interface 403, a low-voltage signal interface 404, a first coolant flow port 305, a second coolant flow port 306, an AC charging port 405, a 12V signal input port 406 and a vent 407. Among them, the first interface 401 is used to connect to the electronic heater to provide power for the electronic heater; the second interface 402 is used to connect to the positive and negative interfaces of the battery to provide power for the battery; the third interface 403 is used to connect to the air-conditioning compressor to provide power for the air-conditioning compressor. It can be seen from the figure that the coolant inlet, coolant outlet and interface in the embodiment of the present application are located on the same side of the charging power distribution device. It can be understood that for most vehicle models, the wiring connected to the charging power distribution device inside the vehicle is usually located on the same side. Therefore, setting the coolant inlet, coolant outlet and interface of the charging power distribution device on the same side is more conducive to the charging power distribution device being adapted to a variety of vehicle models, and is more conducive to the wiring and layout inside the vehicle.

[0097] In addition, to facilitate understanding, an embodiment of the present application also provides a schematic diagram of a hierarchical structure of a charging and power distribution device.

[0098] See also Figure 5 , is a schematic diagram of the layered structure of a charging power distribution device provided in an embodiment of the present application. It includes: an upper cover plate 501 of a high-voltage power distribution module, a support frame 502, a second-layer circuit board 503, a second-layer support shell 504, a first-layer circuit board 505, and a first-layer support shell 300. In addition to the shell, the second-layer support shell 504 and the first-layer support shell 300 also include a variety of plug-ins.

[0099] For ease of understanding, the topological relationship of the charging and power distribution device in the embodiment of the present application is explained below.

[0100] See also Figure 6 , is a schematic diagram of the topological relationship of a charging and power distribution device provided in an embodiment of the present application. Figure 6 As shown, the auxiliary power supply provides power to the PFC control circuit, the resonant control circuit and the phase-shifted full-bridge control circuit. When the car starts to charge, the EMI filter circuit converts the received AC input into the second AC. The control MCU controls the bridge PFC / interleaved parallel totem pole PFC through the PFC control circuit to convert the second AC into the third AC, and controls the LLC / bidirectional CLLLC resonance through the resonant control circuit to convert the third AC into the fourth AC. Finally, the output filter circuit converts the fourth AC into the first DC, and provides power to the power battery, the air-conditioning compressor and the electronic heater respectively, or controls the phase-shifted full-bridge conversion circuit through a full-bridge control circuit to convert the fourth AC into the second DC, and outputs low-voltage DC.

[0101] In the embodiments of the present application, "at least one" refers to one or more, and "plurality" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. Among them, A and B can be singular or plural. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c can be represented by: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0102] Those of ordinary skill in the art will appreciate that the various units and algorithm steps described in the embodiments disclosed herein can be implemented in a combination of electronic hardware, computer software, and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0103] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0104] In several embodiments provided in the present application, any function can be stored in a computer-readable storage medium if it is implemented in the form of a software functional unit and sold or used as an independent product. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc., and other media that can store program codes.

[0105] In this specification, the same or similar parts between the various embodiments can be referred to each other. In particular, for the device embodiment and the terminal embodiment, since they are basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description in the method embodiment.

Claims

1. A charging and distribution device, characterized in that: The charging power distribution device comprises a first layer, wherein the first layer comprises: an AC input pre-charging and EMI filtering module, configured to receive a first AC power, filter the first AC power, generate and output a second AC power, wherein the first AC power is a grid AC power; The PFC circuit and bus capacitor module are used to receive the second alternating current output by the AC input pre-charging and EMI filtering module, filter the second alternating current, generate and output a third alternating current; A PFC rectifier MOS module, used for receiving the third alternating current output by the PFC circuit and the bus capacitor module, rectifying the third alternating current, generating and outputting a fourth alternating current; A PFC inductor module is used to store energy so that the voltage of the PFC circuit, the bus capacitor module and the PFC rectifier MOS module is stable and operates normally; LLC primary MOS module, used to control the on or off of the LLC circuit; An LLC transformer and filter module, configured to receive the fourth alternating current output by the PFC rectifier MOS module when the LLC circuit is turned on, convert the fourth alternating current into a fifth alternating current through a resonant circuit, filter the fifth alternating current, and generate and output a sixth alternating current; an output filtering module, configured to receive the sixth alternating current outputted by the LLC transformer and the filtering module, filter the sixth alternating current, and generate and output a first direct current; A DC / DC input primary side module, used for receiving the sixth alternating current output by the LLC transformer and the filter module, converting the sixth alternating current into a seventh alternating current, and outputting the seventh alternating current; The DC / DC output transformer and rectifier bridge output module are used to receive the seventh alternating current output by the DC / DC input primary module, rectify the seventh alternating current, and generate and output a second direct current.

2. The device according to claim 1, characterized in that The charging power distribution device further includes a second layer, wherein the second layer includes: High voltage distribution module, used to distribute and manage the electrical energy of the vehicle's high voltage system.

3. The device according to claim 2, characterized in that The first layer and the second layer of the charging distribution device are detachable.

4. The device according to claim 2, characterized in that The coolant inlet, coolant outlet and interface of the charging power distribution device are located on the same side, and the interface is used to receive and / or output electrical energy.

5. The device according to claim 1, characterized in that The first layer includes a supporting shell, which is divided into a first cavity, a second cavity and a third cavity by a cooling liquid channel, the second cavity is located between a cooling liquid inlet channel and a cooling liquid outflow channel, the first cavity is located between the cooling liquid inlet channel and the supporting shell, and the third cavity is located between the cooling liquid outflow channel and the supporting shell.

6. The device according to claim 5, characterized in that The first cavity is provided with a first AC charging port, and the AC input pre-charging and EMI filtering module is installed in the first cavity near the first AC charging port and near the supporting shell; The PFC circuit and busbar capacitor module are installed between the AC input pre-charging and EMI filtering module and the supporting shell in the first cavity; The PFC rectifier MOS module is installed in the first cavity between the AC input pre-charging and EMI filtering module and the coolant inflow channel; The LLC primary MOS module is installed in the first cavity between the PFC circuit and bus capacitor module and the coolant inflow channel; The LLC transformer and the filter module are installed in the second cavity, and three sides of the LLC transformer and the filter module are adjacent to the coolant channel; The DC / DC output transformer and the rectifier bridge output module are installed in the second cavity near the supporting shell; The PFC inductor module is installed in the second cavity, between the LLC transformer and filter module and the DC / DC output transformer and rectifier bridge output module; The output filter module is installed in the third cavity, and three sides of the output filter module are adjacent to the supporting shell; The DC / DC input primary module is installed in the third cavity between the output filter module and the coolant outflow channel.

7. The device according to claim 5, characterized in that The PFC inductor module includes: a first PFC inductor module and a second PFC inductor module, which are used to store energy so that the voltage of the PFC circuit, the bus capacitor module and the PFC rectifier MOS module are stable and work normally.

8. The device according to claim 7, characterized in that The first PFC inductor module is installed in the second cavity, between the LLC transformer and filter module and the DC / DC output transformer and rectifier bridge output module; The second PFC inductor module is installed in the third cavity, between the output filter module, the coolant outflow channel and the DC / DC input primary module.

9. A charging and distribution system, characterized in that: The charging and power distribution system comprises: A charging and distribution device as claimed in any one of claims 1 to 8.

10. A vehicle, characterized in that: The vehicle comprises: The charging and distribution system according to claim 9.

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