Controller, vehicle and charging system

Abstract

The utility model discloses a controller comprising a boost electric connection part, one end of which is used for being electrically connected with a distribution box, and the other end of which is used for being electrically connected with a motor; one end of the positive electric connection part and one end of the negative electric connection part are electrically connected with the power distribution box; one end of the boost control part is electrically connected with the motor, the other end of the boost control part is electrically connected with the distribution box, the boost control part comprises a first state and a second state, when the boost control part is in the first state, current provided by the charging pile is finally transmitted to the distribution box through the motor, and the motor generates induced current; and when the boost control part is in a second state, the current provided by the charging pile and the induced current are jointly transmitted to the positive electrode of the battery through the positive electrode electric connection part. The controller provided by the utility model controls the motor of the vehicle to boost the charging current without additionally arranging a boosting device, so that the production cost can be effectively reduced. The utility model further provides a vehicle and a charging system.

Description

Technical Field

[0001] The utility model relates to the field of motor control, in particular to a controller, a vehicle and a charging system. Background Art

[0002] With the development of new energy vehicles, the range anxiety of new energy vehicle owners has gradually received more attention and importance.

[0003] Charging piles are charging devices that provide energy replenishment for new energy vehicles. Their functions are similar to those of gas pumps in gas stations. They can be fixed on the ground or on the wall and installed in public buildings (public buildings, shopping malls, public parking lots, etc.) and residential parking lots or charging stations. In order to solve the problem of range anxiety, the battery capacity of new energy vehicles is getting higher and higher, and higher requirements are placed on charging technology and charging piles. Existing charging piles include low-voltage charging piles (e.g. 400V) and high-voltage charging piles (e.g. 800V).

[0004] In order to improve efficiency, the prior art requires a booster device to boost the 400V current output by the low-voltage charging pile to 800V before charging it into the car battery. A separate booster device not only increases production costs, but also makes it difficult to control the boosting process. Utility Model Content

[0005] The purpose of the utility model is to solve the technical problems of high cost and inconvenient control caused by setting an additional boost device in the prior art. The utility model provides a controller, which integrates the boost control function in the controller, so that the controller can give full play to its control effect on the motor, control the motor to achieve boost when the vehicle is charged, and charge the boosted current into the battery.

[0006] In order to solve the above technical problems, the embodiment of the utility model discloses a controller, which is applied to a charging system, wherein the charging system includes a motor, a battery assembly and a charging pile, wherein the battery assembly includes a distribution box and a battery, wherein one end of the distribution box is electrically connected to the charging pile, and the other end is electrically connected to the battery, and wherein the controller includes:

[0007] A boost electrical connection part, one end of which is used to be electrically connected to the power distribution box, and the other end of which is used to be electrically connected to the motor;

[0008] A positive electrical connection part and a negative electrical connection part, wherein one end of the positive electrical connection part is used to be electrically connected to the positive electrode of the distribution box, and one end of the negative electrical connection part is used to be electrically connected to the negative electrode of the distribution box;

[0009] A boost control unit, one end of which is used to be electrically connected to the motor, and the other end of which is used to be electrically connected to the power distribution box. The boost control unit includes a first state and a second state. When the boost control unit is in the first state, the current provided by the charging pile flows through the boost electrical connection unit and the motor in sequence, and flows into the power distribution box through the negative electrical connection unit, and the motor generates an induced current.

[0010] When the boost control unit is in the second state, the current provided by the charging pile flows into the motor from the boost electrical connection unit, and the current provided by the charging pile and the induced current flow from the motor through the positive electrical connection unit into the positive electrode of the battery.

[0011] With the above technical solution, since the boost control unit includes a first state and a second state, when the boost control unit is in the first state, the current provided by the charging pile is transmitted to the motor by the boost electrical connection unit, and is transmitted to the distribution box through the negative electrical connection unit, and the motor generates an induced current at this time; when the boost control unit is in the second state, the current provided by the charging pile is transmitted to the motor by the boost electrical connection unit, and the current provided by the charging pile and the induced current are transmitted together by the motor to the positive electrode of the battery through the positive electrical connection unit.

[0012] Therefore, the controller provided in the present application can achieve the boost of charging current by controlling the vehicle's own motor, without the need to set up an additional separate boost device, which makes it easy to control the boost process and can effectively reduce production costs.

[0013] According to another specific embodiment of the present utility model, the embodiment of the present utility model discloses a controller, the controller includes an inverter module, the boost control unit is arranged in the inverter module, the boost control unit also includes an upper bridge switch and a lower bridge switch, the upper bridge switch is electrically connected to the positive electrode electrical connection part, and the lower bridge switch is electrically connected to the negative electrode electrical connection part;

[0014] When the upper bridge switch is open and the lower bridge switch is closed, the boost control unit is in the first state; when the upper bridge switch is closed and the lower bridge switch is open, the boost control unit is in the second state.

[0015] By adopting the above technical solution, the boost control unit can be switched between the first state and the second state by controlling the on-off of the upper bridge switch and the lower bridge switch of the boost control unit. The boost control unit is arranged in the inverter module, and no additional space is required to arrange the boost control unit, which is convenient for the overall size and shape of the controller. In addition, the inverter module can also be used to realize the inverter function of direct current, so that the controller provided by the present application can play a variety of functions.

[0016] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a controller, which includes an electrical connection module, and along a first direction, the electrical connection module is laid flat on one side of the inverter module, and the boost electrical connection part includes a first part and a second part that are connected to each other, the first part is used to be electrically connected to the distribution box, and the positive electrical connection part, the negative electrical connection part and the first part are arranged on the electrical connection module; the second part is used to be electrically connected to the motor, and the second part is arranged on the inverter module.

[0017] With the above technical solution, the electrical connection module includes a positive electrical connection part, a negative electrical connection part and a boost electrical connection part, and the controller is divided into an inverter module and an electrical connection module. Through modular design, if a component fails, only the relevant module needs to be replaced, which can reduce maintenance time. In addition, the electrical connection module is laid flat on one side of the inverter module along the first direction, which can effectively reduce the height of the controller perpendicular to the first direction.

[0018] According to another specific embodiment of the present utility model, the embodiment of the present utility model discloses a controller, wherein the inverter module and the electrical connection module are both in a rectangular parallelepiped shape.

[0019] By adopting the above technical solution, the overall appearance of the controller is more regular and the internal layout is compact and neat.

[0020] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a controller, the electrical connection module includes a filter, along the first direction, the positive electrical connection part, the negative electrical connection part and the first part are arranged at intervals, and the positive electrical connection part, the negative electrical connection part and the boost electrical connection part are electrically connected to the filter at the same time, and the filter filters the current passing through the positive electrical connection part, the negative electrical connection part and the boost electrical connection part.

[0021] By adopting the above technical solution, since the filter can filter the current of the positive electrical connection, the negative electrical connection and the boost electrical connection at the same time, it can effectively avoid the interference of ripple (a noise signal containing periodic and random components attached to the direct current), thereby avoiding the adverse effects of ripple causing electrical equipment to fail to work normally.

[0022] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a controller, the electrical connection module includes a first control board, the first control board is electrically connected to the inverter module, the first control board is provided with a filter control unit, the filter control unit is electrically connected to the boost electrical connection unit, and is used to control the filter to filter the current of the boost electrical connection unit.

[0023] By adopting the above technical solution, a filter control unit is provided on the first control board, which can independently control the filtering of the boost electrical connection part to improve the working efficiency of the controller and reduce the adverse effects of ripple on the charging pile.

[0024] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a controller, the electrical connection module includes an electromagnetic shielding cover, along the second direction, the electromagnetic shielding cover is spaced between the first control board and the filter, and the electromagnetic shielding cover is provided on the positive electrical connection part, the negative electrical connection part and the first part surface.

[0025] By adopting the above technical solution, an electromagnetic shielding cover is provided between the first control board and the filter, which can avoid electromagnetic interference between the first control board and the filter and the electrical connection part, thereby improving the EMC performance (ie electromagnetic compatibility) of the electrical connection module.

[0026] According to another specific embodiment of the present utility model, the embodiment of the present utility model discloses a controller, wherein a plurality of reinforcing ribs are arranged at intervals on the surface of the electromagnetic shielding cover.

[0027] The adoption of the above technical solution can help the electromagnetic shielding cover to better withstand external loads and improve its overall stability.

[0028] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a controller, which includes a shell, the shell includes a accommodating groove, the inverter module and the electrical connection module are both arranged in the accommodating groove, and along the second direction, the side of the shell facing away from the inverter module is provided with an installation hole, which is used to face the side of the shell with the accommodating groove toward the motor and install the controller on the motor.

[0029] By adopting the above technical solution, the controller can be directly installed on the motor by means of an inverted buckle, without occupying additional space and without providing an additional cover plate to seal the accommodating groove.

[0030] According to another specific embodiment of the present utility model, an embodiment of the present utility model discloses a controller, wherein the inverter module includes a cooling chamber, wherein the cooling chamber is arranged on a side of the inverter module facing away from the driving plate of the inverter module, and along the second direction, a cooling channel is provided on a side of the shell facing away from the accommodating groove, wherein the cooling channel is connected to the cooling chamber for providing cooling liquid to the cooling chamber.

[0031] By adopting the above technical solution, a cooling channel is provided on the side of the electrical connection module facing away from the first control board, which can not only dissipate heat for the electrical connection module, but also provide cooling liquid for the cooling cavity of the inverter module, further enhancing the overall heat dissipation efficiency of the controller.

[0032] The embodiment of the utility model further discloses a vehicle, the vehicle at least comprising the controller in any of the above embodiments, the vehicle comprising a motor and a battery assembly, the motor and the battery assembly are both electrically connected to the controller, and the battery assembly comprises a distribution box and a battery;

[0033] The positive electrode of the battery is electrically connected to the positive electrode electrical connection part, and the negative electrode of the battery is electrically connected to the negative electrode electrical connection part; the distribution box is used to electrically connect the boost electrical connection part and the negative electrode electrical connection part to the charging pile. When the distribution box determines that a boost is required, the current provided by the charging pile flows into the motor through the boost electrical connection part, and the motor is controlled by the boost control part of the controller to boost the current to be boosted.

[0034] By adopting the above technical solution, the power distribution box can detect whether the voltage output by the charging pile needs to be boosted. If not, it will be directly charged into the battery pack; if it needs to be boosted, the current to be boosted will be transmitted to the motor through the boost electrical connection part, and the controller provided by this application will give full play to the role of the motor to boost the current to be boosted of the charging pile. When the vehicle does not need to be charged, the battery can supply power to the motor through the positive copper busbar and the negative copper busbar.

[0035] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a vehicle, wherein the motor includes an inductor, an input part and an output part, wherein the input part is electrically connected to the boost electrical connection part, and the output part is electrically connected to the boost control part.

[0036] When the boost control unit is in the first state, the current provided by the charging pile flows through the boost electrical connection unit, the input unit, and the inductor in sequence, and flows from the output unit into the distribution box through the negative electrical connection unit, and the inductor generates an induced current;

[0037] When the boost control unit is in the second state, the current provided by the charging pile flows through the boost electrical connection unit, the input unit, and the motor in sequence, and the current provided by the charging pile and the induced current flow from the output unit through the positive electrical connection unit into the positive electrode of the battery.

[0038] By adopting the above technical solution, the controller controls the inductance coil of the motor to boost the current to be boosted, and the boosted current is then transmitted to the battery pack through the controller, thereby maximizing the utilization of the controller without adding additional transmission circuits, effectively saving production costs.

[0039] The embodiment of the utility model further discloses a charging system, the charging system at least comprising the vehicle in any one of the above embodiments, the charging system comprising a charging pile, the charging pile being electrically connected to the distribution box of the vehicle;

[0040] The charging system comprises a charging circuit and a boost charging circuit, the charging circuit comprises the charging pile, the power distribution box and the battery of the vehicle, and the boost charging circuit comprises the charging pile, the power distribution box, the controller, the motor of the vehicle and the battery;

[0041] When the power distribution box determines that a voltage boost is required, the voltage boost control unit is in the first state and the second state in sequence, and the current provided by the charging pile and the induced current flow into the battery through the voltage boost charging circuit;

[0042] When the power distribution box determines that no voltage boost is required, the current provided by the charging pile flows into the battery through the charging circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A schematic diagram of a charging circuit of a controller provided in an embodiment of the present application is shown.

[0044] Figure 2 A three-dimensional schematic diagram of a controller provided in an embodiment of the present application is shown.

[0045] Figure 3 A schematic top view of a controller provided in an embodiment of the present application is shown.

[0046] Figure 4 An exploded schematic diagram of a controller provided in an embodiment of the present application is shown.

[0047] Figure 5 A three-dimensional schematic diagram of an inverter module of a controller provided in an embodiment of the present application is shown.

[0048] Figure 6 A cross-sectional view of a controller provided in an embodiment of the present application is shown.

[0049] Figure 7 A back-facing schematic diagram of a controller provided in an embodiment of the present application is shown.

[0050] Figure 8 A schematic diagram of a first control board of a controller provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0051] The following is an explanation of the implementation of the present invention by specific specific embodiments. Those skilled in the art can easily understand other advantages and functions of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0052] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0053] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0054] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0055] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0056] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0057] See also Figure 1 , Figure 2 The present application provides a vehicle, the vehicle includes a motor 30 and a battery assembly 40 ( Figure 1 The motor 30 and the battery assembly 40 are both electrically connected to the controller. The battery assembly 40 includes a battery 41 and a distribution box 42 ( Figure 1 The motor 30 includes an inductor 31 , an input portion 32 and an output portion 33 .

[0058] In some embodiments, the present application also provides a charging system, including the motor 30 and battery assembly 40 of the aforementioned vehicle, the charging system also includes a charging pile 50, the charging pile 50 is electrically connected to the distribution box 42 of the vehicle, the positive electrode 421 of the distribution box 42 is electrically connected to the positive electrode of the battery 41, and the negative electrode 422 of the distribution box 42 is electrically connected to the negative electrode of the battery 41; the charging system includes a charging circuit and a boost charging circuit, the charging circuit includes the charging pile 50, the distribution box 42 and the battery 41, and the boost charging circuit includes the charging pile 50, the distribution box 42, a controller, the motor 30, and the battery 41. When the vehicle is charged through the charging circuit, the current flows directly into the battery 41 through the positive electrode 421 of the distribution box 42; when the vehicle is charged through the boost charging circuit, the current first flows into the motor 30 through the distribution box 42, and the controller performs boost processing, and then flows into the battery 41 through the positive electrode 421 of the distribution box 42.

[0059] In some embodiments, see Figure 1 , Figure 2 , Figure 3 The present application provides a controller 1, which is applied to the above-mentioned charging system. The controller 1 includes a boost electrical connection part 243, a boost control part (not shown in the figure), a positive electrical connection part 241 and a negative electrical connection part 242. One end of the boost electrical connection part 243 is used to be electrically connected to the distribution box 42, and the other end is used to be electrically connected to the motor 30; one end of the positive electrical connection part 241 is used to be electrically connected to the positive electrode 421 of the distribution box 42, and one end of the negative electrical connection part 242 is used to be electrically connected to the negative electrode 422 of the distribution box 42;

[0060] One end of the boost control unit is used to be electrically connected to the motor 30, and the other end is used to be electrically connected to the distribution box 42. The boost control unit includes a first state and a second state. When the boost control unit is in the first state, the current provided by the charging pile 50 flows through the boost electrical connection part 243, the input part 32 of the motor 30, and the inductor 31 of the motor in sequence, and flows into the distribution box 42 through the negative electrical connection part 242, and the inductor 31 generates an induced current; when the boost control unit is in the second state, the current provided by the charging pile 50 flows from the boost electrical connection part 243 through the input part 32 into the motor 30, and the current provided by the charging pile 50 and the induced current flow into the battery 41 together through the output part 33 of the motor, the positive electrical connection part 243, and the positive pole 421 of the distribution box 42 in sequence.

[0061] In some embodiments, when the distribution box 42 determines that a voltage boost is required, the boost control unit is in a first state and a second state respectively, and the current provided by the charging pile 50 and the induced current flow into the battery 41 through the boost charging circuit; when the distribution box 42 determines that a voltage boost is not required, the current provided by the charging pile 50 flows into the battery 41 through the charging circuit.

[0062] The controller 1 provided in the present application can boost the charging current by controlling the vehicle's own motor 30 when in the charging state, without the need to set up an additional separate boosting device, which makes it easy to control the boosting process and can effectively reduce production costs.

[0063] In some embodiments, the controller 1 includes an inverter module 10 and an electrical connection module 20, and the inverter module 10 and the electrical connection module 20 are electrically connected through an FPC (Flexible Printed Circuit) flexible bus. It can be understood that the inverter module 10 and the electrical connection module 20 can also be electrically connected through other means such as cables, and the present application does not impose any restrictions on this.

[0064] Exemplarily, the boost control unit is provided in the inverter module 10, and the boost control unit also includes an upper bridge switch 132 and a lower bridge switch 131, the upper bridge switch 132 is electrically connected to the positive electrode electrical connection part 241, and the lower bridge switch 131 is electrically connected to the negative electrode electrical connection part 242; when the upper bridge switch 132 is disconnected and the lower bridge switch 131 is closed, the boost control unit is in a first state; when the upper bridge switch 132 is closed and the lower bridge switch 131 is disconnected, the boost control unit is in a second state. Exemplarily, the boost control unit may include a programmable controller such as a single-chip microcomputer, and the present application does not limit the specific type of the boost control unit, and it is sufficient to control the opening and closing of the lower bridge switch and the upper bridge switch to control the motor 30 to boost.

[0065] For ease of understanding, the following takes the output voltage of the charging pile 50 as 400V and 800V as an example. Figures 2 to 4 , and combined with Figure 1 The process of controlling the motor 30 to increase the voltage by the controller of the present application is described in detail. It can be understood that the controller provided by the present application is not limited to controlling the motor 30 to increase the voltage from 400V to 800V.

[0066] Exemplarily, if the distribution box 42 detects that the output voltage of the charging pile 50 is 800V, the switch B and switch C of the distribution box 42 are closed, and the switch C is opened. The current flows out of the charging pile 50 and flows directly into the battery 41 through the positive pole 421 of the distribution box 42, that is, the current is directly charged into the battery 41 through the charging circuit.

[0067] If the distribution box 42 detects that the output voltage of the charging pile 50 is 400V, a boost charging circuit is required to charge the battery 41. The filter switch E and the switches A and B of the distribution box 42 are closed, and the switch C is opened. At this time, the current passes through the boost electrical connection part 243 in sequence, and the voltage to be boosted is input to the input part 32 of the motor 30. At this time, after the 400V current passes through the inductor 31 of the motor 30, the boost control part controls the lower bridge switch 131 to close, and the upper bridge switch 132 to open. The current passes through the output part 33 of the motor 30, the inverter module 10, and the negative pole electrical connection part 242 in sequence and returns to the distribution box 42 to form a complete loop, so as to charge the inductor 31 of the motor 30, so that the inductor 31 has a current of 400V.

[0068] Afterwards, the boost control unit controls the lower bridge switch 131 to be disconnected and the upper bridge switch 132 to be closed. The current provided by the charging pile 50 passes through the boost electrical connection part 243 and the input part 32 of the motor 30 in turn, and is superimposed with the current of the inductor 31 to form an 800V current. The superimposed current passes through the output part 33 of the motor 30, the inverter module 10, and the positive electrical connection part 241 in turn, and is finally charged into the battery 41 through the positive pole of the distribution box 42.

[0069] In addition, when the controller is in the driving state, switches A, B, C, and E are all disconnected, and the current is transmitted to the inverter module 10 through the positive electrical connection part 241 and the negative electrical connection part 242. After the inverter module 10 inverts the DC power into AC power, it is supplied to the motor 30 for use.

[0070] In the charging state, the boost control unit can control the motor 30 to boost the current to be boosted delivered by the boost electrical connection unit 243; in the vehicle driving state, the controller can normally perform other functions, such as inverting the DC power released by the battery assembly 40 into AC power for the power supply machine 30 through the inverter module 10. In this way, the present application can provide a controller with a boost function without the need for an additional boost device, which can effectively reduce production costs.

[0071] In some embodiments, the electrical connection module 20 is laid flat on one side of the inverter module 10 along the first direction X. Exemplarily, the inverter module 10 and the electrical connection module 20 are both in the shape of a cuboid, so the entire controller 1 is in the shape of a regular cuboid, so that the entire controller has a regular appearance and a compact and neat internal layout.

[0072] It is understandable that the electrical connection module 20 and the inverter module 10 in the present application may also be in other shapes. The electrical connection module 20 or the inverter module 10 referred to herein as a rectangular parallelepiped as a whole means that the envelope of the module is basically in the shape of a rectangular parallelepiped. Such a regular shape is conducive to the arrangement of the controller in the vehicle; such a description is not intended to limit all outward surfaces of the module to be flat surfaces, nor is it intended to limit the relative surfaces of the module to have an absolutely parallel relationship and / or the adjacent surfaces to have an absolutely perpendicular relationship. In addition, it should also be understood that the rectangular parallelepiped referred to herein includes special rectangular parallelepipeds (i.e., cubes) and non-special rectangular parallelepipeds.

[0073] In some embodiments, since the controller provided by the present application has a regular appearance and a compact and neat internal layout, there is no need to set an additional cover plate to seal the accommodating groove 301, and it can be directly installed on the motor to save installation space.

[0074] For example, see Figure 2 , Figure 3 , Figure 4 The controller includes a housing 30 , the housing 30 has a receiving groove 301 , and the inverter module 10 and the electrical connection module 20 are both disposed in the receiving groove 301 .

[0075] In some embodiments, along the second direction Y, the electrical connection module 20 includes, from top to bottom, a first control board 21, an electromagnetic shielding cover 22, a filter 23, and an electrical connection portion 24. In some embodiments, a plurality of reinforcing ribs 221 are provided at intervals on the surface of the electromagnetic shielding cover 22. For the electromagnetic shielding cover 22 in a thin plate shape, the provision of the reinforcing ribs 221 can effectively improve the strength and stability of the electromagnetic shielding cover 22.

[0076] In some embodiments, the boost electrical connection part 243 includes a first portion (hereinafter referred to as the first extension section 2434) and a second portion (hereinafter referred to as the second extension section 2435 and the third extension section 2436), and the electrical connection part 24 includes a positive electrical connection part 241, a negative electrical connection part 242, and a first portion of the boost electrical connection part 243. The first portion of the boost electrical connection part 243 is used to be electrically connected to the power distribution box, and the positive electrical connection part 241, the negative electrical connection part 242 and the first portion are provided in the electrical connection module 20; the second portion of the boost electrical connection part 243 is used to be electrically connected to the motor, and the second portion is provided in the inverter module 10.

[0077] In some embodiments, along the first direction X, the positive electrical connection part 241, the negative electrical connection part 242 and the first part of the boost electrical connection part 243 are spaced apart, and the positive electrical connection part 241, the negative electrical connection part 242 and the boost electrical connection part 243 are electrically connected to the filter 23 at the same time, and the filter 23 filters the current passing through the positive electrical connection part 241, the negative electrical connection part 242 and the boost electrical connection part 243.

[0078] In some embodiments, the first control board 21 is electrically connected to the inverter module 10, and the first control board 21 is provided with a filter control unit, which is electrically connected to the boost electrical connection unit 243 and is used to control the filter 23 to filter the current of the boost electrical connection unit 243. Exemplarily, the filter control unit includes a filter switch 211 and a filter capacitor 212 ( Figure 8 shown), combined Figure 1 , Figure 1 The capacitor D is the filter capacitor 212, and the switch E is the filter switch 211. When the controller is in the state of controlling the motor to boost, the filter switch 211 is normally closed, so that the filter capacitor 212 is connected in parallel to the circuit to achieve filtering of the current input to the motor via the boost electrical connection part 243.

[0079] In some embodiments, the first part of the boost electrical connection part 243, the positive electrical connection part 241, and the negative electrical connection part 242 all extend along the third direction Z and are arranged through the filter 23. Exemplarily, the boost electrical connection part 243 includes a first end 2431, a second end 2432, and a third end 2433, the first end 2431 is used to be electrically connected to the distribution box 42, and the second end 2432 is provided in the inverter module 10, and is used to flow the current to be boosted from the distribution box 42 to the motor 30. The third end 2433 is electrically connected to the first control board 21.

[0080] In some embodiments, the electromagnetic shielding cover 22 is disposed on the first part of the surface of the positive electrical connection part 241, the negative electrical connection part 242 and the boost electrical connection part 243, separating the first control board 21 from the positive electrical connection part 241, the negative electrical connection part 242 and the first part of the boost electrical connection part 243, thereby preventing the high voltage current passing through the positive electrical connection part 241, the negative electrical connection part 242 and the boost electrical connection part 243 from having an adverse effect on the first control board 21.

[0081] Exemplarily, the positive electrode electrical connection portion 241 includes a fourth end 2411, a fifth end 2412, and a sixth end 2413, and the negative electrode electrical connection portion 242 includes a seventh end 2421, an eighth end 2422, and a ninth end 2423. The first end 2431, the fourth end 2411, and the seventh end 2421 are all used to be electrically connected to the distribution box 42 of the battery assembly 40, wherein the fourth end 2411 is used to be electrically connected to the positive electrode 421 of the distribution box 42, the seventh end 2421 is used to be electrically connected to the negative electrode 422 of the distribution box 42, the fifth end 2412, and the eighth end 2422 are electrically connected to the inverter module 10; the sixth end 2413 and the ninth end 2423 are both electrically connected to the first control board 21. Exemplarily, the sixth end 2413 can be used to power the high-voltage transformer 215 on the first control board 21.

[0082] In some embodiments, the electrical connection module 20 further includes a communication connection portion 26, which is electrically connected to the first control board 21. The communication connection portion 26 can not only realize the communication connection between the controller and the external system, but also supply power to the low-voltage transformer 213 on the first control board 21. Exemplarily, a shielding cover 214 is also provided on the first control board 21, and the shielding cover 214 covers the part of the communication connection portion 26 on the first control board 21, and is used to shield the interference signal on the first control board 21, so as to prevent the interference signal from affecting the communication quality between the controller and the external system.

[0083] In some embodiments, the positive electrical connection part 241, the negative electrical connection part 242, and the boost electrical connection part 243 are all copper bars arranged in a plate shape. It can be understood that the positive electrical connection part 241, the negative electrical connection part 242, and the boost electrical connection part 243 can also be other forms such as cables, and the present application does not impose any restrictions on this.

[0084] In some embodiments, a first extension section 2434 (i.e., a first part) extending along a third direction Z is provided between the first end 2431 and the third end 2433 of the boost electrical connection portion 243, and a second extension section 2435 and a third extension section 2436 are provided between the third end 2433 and the second end 2432 of the boost electrical connection portion 243, and the second extension section 2435 and the third extension section 2436 together constitute a second part, wherein the second extension section 2435 extends along the third direction Z, the second extension section 2435 and the first extension section 2434 are roughly U-shaped and arranged in the accommodating groove 301, the third extension section 2436 is extended along the first direction X, the third extension section 2436 is detachably connected to the second end 2432, and the second extension section 2435 and the third extension section 2436 are roughly L-shaped and arranged in the accommodating groove 301. It can be understood that the aforementioned arrangement scheme fully utilizes the space inside the controller to make the internal layout of the controller more compact and reasonable. The boost electrical connection part 243 may also have other arrangement schemes, and the present application does not impose any restrictions on this.

[0085] In some embodiments, see Figure 2 , Figure 3 , Figure 5 Combined with Figure 1 The inverter module 10 includes a first module 11 and a second module 12. Along the third direction Z, the first module 11 is laid flat on one side of the second module 12, and the first module 11 is provided with a first electrical connection portion 1121 on a side away from the second module 12 along the third direction Z. The first electrical connection portion 1121 is used to electrically connect to the motor. Exemplarily, along the first direction X, the first module 11 includes a drive board 111, a power module 112 ( Figure 6 As shown) and a cooling chamber 113, the driving board 111 is electrically connected to the first control board 21;

[0086] The second module 12 includes a capacitor 121 and a second electrical connection portion 122, and the capacitor 121 is electrically connected to the power module 112. Exemplarily, the second electrical connection portion 122 is protruding from the side of the capacitor 121, and the second electrical connection portion 122 includes a positive copper busbar 1221 and a negative copper busbar 1222, which are used to be electrically connected to an external power supply.

[0087] In some embodiments, the second end 2432 of the boost electrical connection part 243 is arranged on the first electrical connection part 1121, the fifth end 2412 of the positive electrical connection part 241 is electrically connected to the positive copper bus 1221, and the eighth end 2422 of the negative electrical connection part 242 is electrically connected to the negative copper bus 1222, and the boost control part is arranged in the first module 11, and is electrically connected to the positive electrical connection part 241 and the negative electrical connection part 242 through the capacitor 121.

[0088] Exemplarily, the upper bridge switch 132 and the lower bridge switch 131 are provided in the power module 112. In some embodiments, the power module 112 further includes a three-phase electrical connection copper bar 1122, which includes three independent copper bars, and the three copper bars are arranged at intervals along the first direction X. Exemplarily, the three-phase electrical connection copper bar 1122 includes a first part 11221 and a second part 11222, and the first part 11221 and the second part 11222 of the three-phase electrical connection copper bar 1122 are detachably connected, and along the third direction Z, one end of the first part 11221 of the three-phase electrical connection copper bar 1122 is respectively connected to the power output terminals of the three phases on the power module 112, and the other end extends out of the first module 11 to be electrically connected to the output part of the motor;

[0089] When the vehicle is charging, when the controller is in the first state, the current flows from the three-phase electrical connection copper bar 1122 to the lower bridge switch 131 and the negative electrical connection part 242 in sequence; when the controller is in the second state, the current flows from the three-phase electrical connection copper bar 1122 to the upper bridge switch 132 and the positive electrical connection part 241 in sequence;

[0090] When the vehicle is in driving state, the DC power output by the battery flows into the first module 11 from the positive electrical connection part 241, and after being inverted into AC power by the second module 12, it is output to the motor through the three-phase electrical connection copper busbar. Exemplarily, along the third direction Z, the three-phase electrical connection copper busbar is arranged on the side of the power module 112 away from the capacitor 121.

[0091] In some embodiments, the first electrical connection portion 1121 includes a fixing hole, a second portion 11222 of the three-phase electrical connection copper busbar, and a second end 2432 of the boost electrical connection portion 243, wherein the second portion 11222 and the second end 2432 are both inserted into the fixing hole, and the second end 2432 of the boost electrical connection portion 243 extends along the second direction Y and is spaced apart from the three copper busbars along the first direction X.

[0092] In some embodiments, along the second direction Y, a mounting hole 302 ( Figure 4 ), the side of the housing 30 having the receiving groove 301 is directed toward the motor and the controller is installed on the motor. For example, when installing the controller provided by the present application on the motor, the first electrical connection portion 1121 needs to be connected to the motor first, and then the controller is turned upside down (such as Figure 7 As shown), that is, the side of the housing 30 having the accommodating groove 301 is oriented toward the motor, and then the first part 11221 and the second part 11222 of the three-phase electrical connection copper bus 1122 are connected together through the mounting hole 302, and the third extension section 2436 of the boost electrical connection part 243 is connected to the second end 2432 together. It can be understood that the connection method includes but is not limited to connecting through connecting parts such as screws, and finally the end cover 303 is covered on the housing 30 to cover the mounting hole 302.

[0093] In some embodiments, see Figure 5 , Figure 6 , Figure 7 The cooling cavity 113 of the inverter module 10 is provided on a side of the inverter module 10 facing away from the driving board 111. Along the second direction Y, a cooling channel 25 is provided on a side of the housing 30 facing away from the accommodating groove 301. The cooling channel 25 is connected to the cooling cavity 113 to provide cooling liquid to the cooling cavity 113. Exemplarily, along the first direction X, the cooling channel 25 has an inlet end 251 and an outlet end 252, and an extension section 253 extending along the first direction X is provided between the inlet end 251 and the cooling cavity 113.

[0094] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above contents are further detailed descriptions of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A controller is applied to a charging system, wherein the charging system comprises a motor, a battery assembly and a charging pile, wherein the battery assembly comprises a distribution box and a battery, wherein one end of the distribution box is electrically connected to the charging pile, and the other end is electrically connected to the battery, wherein: The controller comprises: A boost electrical connection part, one end of which is used to be electrically connected to the power distribution box, and the other end of which is used to be electrically connected to the motor; A positive electrical connection part and a negative electrical connection part, wherein one end of the positive electrical connection part is used to be electrically connected to the positive electrode of the distribution box, and one end of the negative electrical connection part is used to be electrically connected to the negative electrode of the distribution box; A boost control unit, one end of which is used to be electrically connected to the motor, and the other end of which is used to be electrically connected to the power distribution box. The boost control unit includes a first state and a second state. When the boost control unit is in the first state, the current provided by the charging pile flows through the boost electrical connection unit and the motor in sequence, and flows into the power distribution box through the negative electrical connection unit, and the motor generates an induced current. When the boost control unit is in the second state, the current provided by the charging pile flows into the motor from the boost electrical connection unit, and the current provided by the charging pile and the induced current flow from the motor through the positive electrical connection unit into the positive electrode of the battery.

2. The controller according to claim 1, characterized in that The controller includes an inverter module, the boost control unit is arranged in the inverter module, the boost control unit also includes an upper bridge switch and a lower bridge switch, the upper bridge switch is electrically connected to the positive electrode electrical connection part, and the lower bridge switch is electrically connected to the negative electrode electrical connection part; When the upper bridge switch is open and the lower bridge switch is closed, the boost control unit is in the first state; when the upper bridge switch is closed and the lower bridge switch is open, the boost control unit is in the second state.

3. The controller according to claim 2, characterized in that The controller includes an electrical connection module, which is laid flat on one side of the inverter module along a first direction. The boost electrical connection part includes a first part and a second part that are connected to each other. The first part is used to be electrically connected to the distribution box, and the positive electrical connection part, the negative electrical connection part and the first part are arranged on the electrical connection module; the second part is used to be electrically connected to the motor, and the second part is arranged on the inverter module.

4. The controller according to claim 3, characterized in that The inverter module and the electrical connection module are both in a rectangular parallelepiped shape.

5. The controller according to claim 4, characterized in that The electrical connection module includes a filter. Along the first direction, the positive electrical connection part, the negative electrical connection part and the first part are arranged at intervals, and the positive electrical connection part, the negative electrical connection part and the boost electrical connection part are electrically connected to the filter at the same time. The filter filters the current passing through the positive electrical connection part, the negative electrical connection part and the boost electrical connection part.

6. The controller according to claim 5, characterized in that The electrical connection module includes a first control board, which is electrically connected to the inverter module. The first control board is provided with a filter control unit, which is electrically connected to the boost electrical connection unit and is used to control the filter to filter the current of the boost electrical connection unit.

7. The controller according to claim 6, characterized in that The electrical connection module comprises an electromagnetic shielding cover, which is arranged between the first control board and the filter along the second direction, and covers the positive electrical connection part, the negative electrical connection part and the first partial surface.

8. The controller according to claim 7, characterized in that A plurality of reinforcing ribs are arranged at intervals on the surface of the electromagnetic shielding cover.

9. The controller according to any one of claims 3 to 8, characterized in that: The controller includes a shell, the shell includes a accommodating groove, the inverter module and the electrical connection module are both arranged in the accommodating groove, and along the second direction, the side of the shell facing away from the inverter module is provided with a mounting hole, which is used to face the side of the shell with the accommodating groove toward the motor and install the controller on the motor.

10. The controller according to claim 9, characterized in that The inverter module includes a cooling cavity, which is arranged on a side of the inverter module facing away from the drive plate of the inverter module. Along the second direction, a cooling channel is arranged on a side of the shell facing away from the accommodating groove. The cooling channel is connected to the cooling cavity and is used to provide cooling liquid to the cooling cavity.

11. A vehicle, characterized in that: The vehicle comprises a controller as claimed in any one of claims 1 to 10, wherein the vehicle comprises a motor and a battery assembly, the motor and the battery assembly are both electrically connected to the controller, and the battery assembly comprises a distribution box and a battery; The positive electrode of the battery is electrically connected to the positive electrode electrical connection part, and the negative electrode of the battery is electrically connected to the negative electrode electrical connection part; the distribution box is used to electrically connect the boost electrical connection part and the negative electrode electrical connection part to the charging pile. When the distribution box determines that a boost is required, the current provided by the charging pile flows into the motor through the boost electrical connection part, and the motor is controlled by the boost control part of the controller to boost the current to be boosted.

12. The vehicle according to claim 11, characterized in that The motor includes an inductor, an input part and an output part, wherein the input part is electrically connected to the boost electrical connection part, and the output part is electrically connected to the boost control part. When the boost control unit is in the first state, the current provided by the charging pile flows through the boost electrical connection unit, the input unit, and the inductor in sequence, and flows from the output unit into the distribution box through the negative electrical connection unit, and the inductor generates an induced current; When the boost control unit is in the second state, the current provided by the charging pile flows through the boost electrical connection unit, the input unit, and the motor in sequence, and the current provided by the charging pile and the induced current flow from the output unit through the positive electrical connection unit into the positive electrode of the battery.

13. A charging system, characterized in that: The vehicle according to claim 11 or 12, wherein the charging system comprises a charging pile, and the charging pile is electrically connected to a power distribution box of the vehicle; The charging system comprises a charging circuit and a boost charging circuit, the charging circuit comprises the charging pile, the power distribution box and the battery of the vehicle, and the boost charging circuit comprises the charging pile, the power distribution box, the controller, the motor of the vehicle and the battery; When the power distribution box determines that a voltage boost is required, the voltage boost control unit is in the first state and the second state in sequence, and the current provided by the charging pile and the induced current flow into the battery through the voltage boost charging circuit; When the power distribution box determines that no voltage boost is required, the current provided by the charging pile flows into the battery through the charging circuit.

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