High-voltage module, battery pack and vehicle

Abstract

A high-voltage module, a battery pack and a vehicle, the high-voltage module is suitable for being arranged in the battery pack, the high-voltage module comprises a power distribution module, an electric control module, a control module and a power supply module, the power distribution module, the electric control module, the control module and the power supply module are connected into a whole, and the control module comprises a compressor control unit and a heating control unit which are integrated. The power supply module comprises a direct current conversion unit and an alternating current charging unit which are integrated. The power distribution module, the electric control module, the control module and the power supply module are connected into a whole and are arranged in the battery pack, the control module comprises the compressor control unit and the heating control unit which are integrated, and the power supply module comprises the direct current conversion unit and the alternating current charging unit which are integrated, so that the integration level is improved, connectors and wire harnesses can be reduced, and the cost is reduced. The connecting and assembling cost is reduced, and the high-voltage safety risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a high-voltage module, a battery pack and a vehicle. Background Art

[0002] With the vigorous development of the new energy vehicle industry, the market has put forward higher requirements for the integration and space utilization of the whole vehicle and its components. The battery pack is the power source of electric vehicles. At the same time, multiple modules of the high-voltage system are distributed outside the battery pack. Each module needs to be connected to the battery pack through many connectors and wiring harnesses. If the distance from the battery pack is too far, the connection harness will increase, increasing the cost of connection assembly and the high-voltage safety risk. Utility Model Content

[0003] The utility model aims to provide a high-voltage module, a battery pack and a vehicle, so as to solve the problems of high connection and assembly costs and high safety risks caused by the modules of the high-voltage system being arranged outside the battery pack.

[0004] In order to achieve the purpose of the utility model, the utility model provides the following technical solutions:

[0005] In a first aspect, the utility model provides a high-voltage module suitable for being arranged in a battery pack, the high-voltage module comprising:

[0006] Power distribution module;

[0007] Electronic control module;

[0008] A control module including an integrated compressor control unit and a heating control unit;

[0009] A power module including an integrated DC conversion unit and an AC charging unit;

[0010] Wherein, the power distribution module, the electric control module, the control module and the power supply module are connected to form a whole.

[0011] In one embodiment, the electric control module, the control module and the power supply module are all electrically connected to the power distribution module.

[0012] In one embodiment, at least two of the power distribution module, the electric control module, the control module and the power supply module are integrated into one.

[0013] In one embodiment, the power distribution module includes an integrated high-voltage power distribution unit, a circuit breaker unit, and a battery sampling and execution unit.

[0014] In one embodiment, the electric control module includes a first electric control module and a second electric control module, and the first electric control module and the second electric control module are respectively suitable for being electrically connected to different motors.

[0015] In one embodiment, a partition beam is further included, which is suitable for being arranged in the battery pack and separating an independent installation space, and the power distribution module, the electronic control module, the control module and the power module are all accommodated in the installation space.

[0016] In one embodiment, at least one of the power distribution module, the electric control module, the control module and the power supply module is connected and fixed to the partition beam.

[0017] In one embodiment, the power distribution module, the electric control module, the control module and the power supply module are interconnected and fixed.

[0018] In one embodiment, a plug-in module is further included, wherein the plug-in module is suitable for being connected and fixed to the tray of the battery pack, and is electrically connected to the power distribution module, the electric control module, the control module and the power module.

[0019] In one embodiment, the plug-in module includes a panel and a low-voltage connector, a DC conversion connector, an AC charging connector, a motor connector and a DC charging connector arranged on the panel, the panel is suitable for being connected and fixed to the tray of the battery pack, the low-voltage connector is electrically connected to the power distribution module, the DC conversion connector is electrically connected to the DC conversion unit, the AC charging connector is electrically connected to the AC charging unit, the motor connector is electrically connected to the electronic control module, and the DC charging connector is electrically connected to the power distribution module.

[0020] In a second aspect, the utility model further provides a battery pack, comprising a tray, a battery module and a high-voltage module described in any one of the various embodiments of the first aspect, wherein the tray has a receiving space, and the battery module and the high-voltage module are received in the receiving space.

[0021] In one embodiment, there are multiple battery modules, and the multiple battery modules are arranged in sequence, and the high-voltage module is arranged between two adjacent battery modules.

[0022] In one embodiment, the tray includes a frame having a mounting hole, and the plug-in module of the high-voltage module is connected and fixed to the frame, and is electrically connected to the distribution module, electronic control module, control module and power module of the high-voltage module accommodated in the accommodation space through the mounting hole.

[0023] In one embodiment, the battery pack further includes an upper cover and an inspection cover, wherein the upper cover is disposed on the tray and closes the accommodating space, the upper cover is provided with an inspection port, the inspection port corresponds to the high-voltage module, and the inspection cover is detachably connected to the upper cover and closes the inspection port.

[0024] In a third aspect, the utility model further provides a vehicle, comprising a vehicle body and a battery pack as described in any one of the various embodiments of the second aspect, wherein the battery pack is connected and fixed to the vehicle body.

[0025] In one embodiment, the upper cover and the inspection cover of the battery pack are configured as the floor of the vehicle body.

[0026] By connecting the distribution module, the electronic control module, the control module and the power module to form a whole and setting them in the battery pack, and the control module includes an integrated compressor control unit and a heating control unit, and the power module includes an integrated DC conversion unit and an AC charging unit, the integration level is improved, the number of connectors and wiring harnesses can be reduced, the cost of connection and assembly can be reduced, and the high-voltage safety risk can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 is an exploded view of a battery pack of an embodiment;

[0029] Figure 2 is a three-dimensional diagram of a high-voltage module of an embodiment;

[0030] Figure 3 is a front view of a plug-in module of an embodiment;

[0031] Figure 4 1 is a rear view of a battery pack according to an embodiment.

[0032] Description of reference numerals:

[0033] 100-battery pack;

[0034] 10-tray, 11-accommodation space, 12-first side beam, 13-second side beam, 14-third side beam, 15-fourth side beam, 16-cross beam, 17-lifting ear, 18-bottom guard plate, 19-installation hole;

[0035] 20-battery module;

[0036] 30-high voltage module, 31-power distribution module, 32-electric control module, 321-first electric control module, 322-second electric control module, 33-control module, 34-power module, 35-partition beam, 36-installation space, 37-connector module, 371-panel, 372-low voltage connector, 373-DC conversion connector, 374-AC charging connector, 375-motor connector, 376-DC charging connector, 377-control connector;

[0037] 40-upper cover, 41-inspection port;

[0038] 50-Inspection cover. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.

[0041] Unless otherwise defined, all technical and scientific terms used in this utility model have the same meaning as those commonly understood by technicians in the technical field of this utility model. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used in this utility model includes any and all combinations of one or more related listed items.

[0042] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0043] Please refer to Figure 1 An embodiment of the utility model provides a battery pack 100, including a tray 10, a battery module 20 and a high-voltage module 30 provided in an embodiment of the utility model. The tray 10 has a receiving space 11, and the battery module 20 and the high-voltage module 30 are received in the receiving space 11.

[0044] The tray 10 includes a frame, which is connected by a plurality of beams to form a ring connected end to end. Specifically, the frame includes a first side beam 12 and a second side beam 13, and a third side beam 14 and a fourth side beam 15. The two ends of the first side beam 12 are respectively connected to one end of the third side beam 14 and the fourth side beam 15, and the two ends of the second side beam 13 are respectively connected to the other ends of the third side beam 14 and the fourth side beam 15. The first side beam 12 to the fourth side beam 15 enclose the receiving space 11. Optionally, the first side beam 12 to the fourth side beam 15 are all beams extending in a straight line, so that the frame as a whole forms a rectangular shape.

[0045] Optionally, the tray 10 further includes a cold plate (not shown) or a bottom plate (not shown), which is connected and fixed to the bottom surface of the frame. The cold plate and the bottom plate are supporting bases for supporting the battery module 20 and the high-voltage module 30. The cold plate has a flow channel inside, and the battery module 20 and the high-voltage module 30 can be cooled by the flow of cooling medium. In the embodiment where the bottom plate is provided, the cold plate can be provided on one side of the top surface of the battery module 20.

[0046] Optionally, the tray 10 also includes a cross beam 16 and / or a longitudinal beam. The cross beam 16 and the longitudinal beam are arranged in the receiving space 11 and are connected and fixed to the frame. The cross beam 16 and the longitudinal beam can also be connected and fixed to the bottom plate or the cold plate. The cross beam 16 and the longitudinal beam are used to separate the receiving space 11 into a plurality of sub-spaces, each of which can accommodate a battery module 20. The frame, the cross beam 16 and the longitudinal beam can clamp the battery module 20 so that the battery module 20 is fixed.

[0047] Optionally, the tray 10 further includes a lifting lug 17 , which is connected to the frame and used for connection and fixation with the vehicle body.

[0048] Optionally, the battery pack 100 further includes a bottom guard plate 18, which is disposed on a side of the bottom plate or the cold plate facing away from the frame and is connected and fixed to the frame. The bottom guard plate 18 is made of insulating material and is used to protect the structure of the tray 10.

[0049] Optionally, the battery pack 100 further includes an upper cover 40 , which is disposed on the frame to seal the receiving space 11 to form a complete battery pack 100 .

[0050] The battery module 20 includes a plurality of battery cells, which are arranged in sequence and connected in series and parallel to form a whole, and the specific structure is not limited.

[0051] The high-voltage module 30 is a whole composed of multiple modules. The high-voltage module 30 of the embodiment of the utility model is highly integrated. The high-voltage module 30 is accommodated in the accommodation space 11, so that the integration of the battery pack 100 is improved. In the embodiment of the utility model, the high-voltage module 30 can be fully accommodated in the accommodation space 11, or partially accommodated in the accommodation space 11. In short, the high-voltage module 30 is connected to the tray 10 to form a whole, that is, the battery pack 100 integrates the high-voltage module 30.

[0052] Therefore, the battery pack 100 of the embodiment of the utility model realizes the integration of the high-voltage module 30 and the tray 10 by accommodating the high-voltage module 30 in the accommodating space 11 of the tray 10, which can solve the problems of high cost and high safety risk of connecting and assembling the existing high-voltage module 30 outside the battery pack 100.

[0053] In one embodiment, reference Figure 1 There are multiple battery modules 20 , and the multiple battery modules 20 are arranged in sequence, and the high-voltage module 30 is arranged between two adjacent battery modules 20 .

[0054] The multiple battery modules 20 may be arranged in multiple rows and multiple columns, or in one row and multiple columns, and two adjacent battery modules 20 may be separated by a crossbeam 16 or a longitudinal beam. In the multiple battery modules 20, the normal crossbeam 16 or longitudinal beam may be removed between two adjacent battery modules 20, and the size of the two adjacent battery modules 20 may be made smaller, so that there is space between the two adjacent battery modules 20 to arrange the high-voltage module 30.

[0055] In this way, the high-voltage module 30 and the battery module 20 are arranged side by side in sequence. Compared with the conventional method of setting the distribution module in an independent distribution cavity, the high-voltage module 30 of this embodiment does not need to arrange a separate distribution cavity, which can make the overall shape of the battery pack 100 regular, for example, forming a cubic structure.

[0056] In one embodiment, reference Figure 1 and Figure 2 The frame of the tray 10 is provided with a mounting hole 19, and the plug-in module 37 of the high-voltage module 30 is connected and fixed to the frame, and is electrically connected to the distribution module 31, the electronic control module 32, the control module 33 and the power module 34 of the high-voltage module 30 accommodated in the accommodation space 11 through the mounting hole 19.

[0057] The mounting hole 19 can be opened on any beam of the frame. Optionally, the mounting hole 19 is opened in the middle of one of the beams, and the mounting hole 19 does not pass through the edge of the beam in the height direction of the battery pack 100, that is, the inner wall of the mounting hole 19 is defined by the beam.

[0058] Optionally, the lifting lug 17 and the mounting hole 19 are located on different beams. For example, the mounting hole 19 is provided on the first side beam 12 , while the lifting lug 17 is provided on the second side beam 13 and the fourth side beam 15 . In this way, interference between the plug-in module 37 and the lifting lug 17 can be avoided.

[0059] The plug-in module 37 includes a panel 371 and a plurality of connectors integrated on the panel 371. The panel 371 can be connected and fixed to a side beam having a mounting hole 19. The connection method can be a detachable connection method such as screw connection, snap connection, etc., or it can be welding, so as to completely close the mounting hole 19 to prevent the receiving space 11 from being connected to the external space of the battery pack 100 through the mounting hole 19.

[0060] The specific type and quantity of the connectors on the panel 371 are not limited here and will be described in detail later. Multiple connectors are integrated on a panel 371 to improve the integration. One end of each of the multiple connectors extends into the receiving space 11 through the mounting hole 19 to be electrically connected to the power distribution module 31, the electronic control module 32, the control module 33 and the power module 34. The other end of each of the multiple connectors is located outside the tray 10 to facilitate electrical connection with various devices outside the battery pack 100.

[0061] In one embodiment, reference Figure 1 and Figure 2 The battery pack 100 further includes an inspection cover 50 . The upper cover 40 is provided with an inspection port 41 . The inspection port 41 corresponds to the high-voltage module 30 . The inspection cover 50 is detachably connected to the upper cover 40 and closes the inspection port 41 .

[0062] The detachable connection between the inspection cover 50 and the upper cover 40 can be screwed, bonded, or clamped, etc., without limitation. When the high-voltage module 30 fails, the inspection cover 50 can be opened and the high-voltage module 30 can be inspected, repaired, or replaced through the inspection port 41 .

[0063] refer to Figure 1 and Figure 2 The embodiment of the utility model further provides a vehicle, including a vehicle body and a battery pack 100 provided in the embodiment of the utility model, wherein the battery pack 100 is connected and fixed to the vehicle body.

[0064] Specifically, the lifting lug 17 of the battery pack 100 is connected and fixed to the beam of the vehicle body, and the connection and fixing method can be screw connection, riveting, etc., without limitation. The vehicle of the embodiment of the utility model is a vehicle type driven by electric energy, and can be a pure electric vehicle, a plug-in hybrid electric vehicle, an extended-range electric vehicle, etc., without limitation.

[0065] The vehicle of the embodiment of the utility model has the advantages of high integration, low cost and high safety by adopting the battery pack 100 of the embodiment of the utility model.

[0066] In one embodiment, reference Figure 1 The upper cover 40 and the inspection cover 50 of the battery pack 100 are configured as the floor of the vehicle body. In this way, the integration of the battery pack 100 and the vehicle body is improved, the conventional required floor is reduced, the cost is reduced, and the space occupied by the floor and the modules conventionally arranged outside the battery pack 100 is reduced, which can increase the collision energy absorption space of the vehicle and increase the space of the passenger compartment, luggage compartment, etc. in the vehicle.

[0067] The high voltage module 30 of the embodiment of the utility model is described in detail below.

[0068] refer to Figure 1 and Figure 2 An embodiment of the utility model provides a high-voltage module 30 suitable for being arranged in a battery pack 100 . The high-voltage module 30 includes a power distribution module 31 , an electronic control module 32 (MCU, Motor control), a control module 33 and a power module 34 .

[0069] The power distribution module 31 is suitable for being arranged in the battery pack 100, specifically, being accommodated in the accommodation space 11, and can be connected and fixed with the bottom plate or the cold plate, and the connection and fixing method can be screw connection, clamp connection, etc. The power distribution module 31 is used to be electrically connected with the battery module 20, and is used for power distribution and control of the high-voltage system, circuit breaker protection, etc., without limitation.

[0070] The electric control module 32 is suitable for being arranged in the battery pack 100, specifically, being accommodated in the accommodation space 11, and can be connected and fixed to the bottom plate or the cold plate, and the connection and fixing method can be screw connection, clamp connection, etc. The electric control module 32 is used to convert the high-voltage direct current output by the battery module 20 into the three-phase alternating current required by the motor. The electric control module 32 is a module for controlling the movement of the motor. Among them, the motor is used to drive the wheels to rotate to realize the driving of the vehicle. In addition, the electric control module 32 can also control the electronic systems in the vehicle, including multimedia, audio, navigation, suspension, etc., without limitation.

[0071] The control module 33 is suitable for being arranged in the battery pack 100, specifically, being accommodated in the accommodation space 11, and can be connected and fixed to the bottom plate or the cold plate, and the connection and fixing method can be screw connection, clamping connection, etc. The control module 33 includes an integrated compressor control unit (not shown) and a heating control unit (PTC, Positive-Temperature-Coefficient) (not shown). Integration refers to the physical connection between the two, and further, some structures, circuits, etc. between the two can be shared, without limitation. The meaning of integration in the following text can be referred to and will not be repeated. The compressor control unit is used to input the high-voltage direct current output by the battery module 20 to the compressor, and the compressor is used to drive the air-conditioning system to work, so as to cool the passenger compartment, etc. The heating control unit is used to input the high-voltage direct current output by the battery module 20 to the heater, which is used to heat the passenger compartment, etc. Among them, the compressor and the heater are both arranged outside the battery pack 100 and connected to the vehicle body.

[0072] The power module 34 is suitable for being arranged in the battery pack 100, specifically being accommodated in the accommodation space 11, and can be connected and fixed to the bottom plate or the cold plate, and the connection and fixing method can be screw connection, clamp connection, etc. The power module 34 includes an integrated DC conversion unit (DC / DC) (not shown) and an AC charging unit (OBC, On Board Charger) (not shown). The DC conversion unit is used to convert the high-voltage DC power output by the battery module 20 into a 12V low-voltage DC power input to the battery. The AC charging unit is used to convert the low-voltage AC power into a high-voltage DC power input to the battery module 20 for charging.

[0073] Among them, the power distribution module 31, the electronic control module 32, the control module 33 and the power module 34 are connected to form a whole. Optionally, the modules can be directly connected and fixed to form a whole, can be connected in sequence, or multiple modules can be connected to one of the modules at the same time, without limitation. Optionally, the modules can be indirectly connected and fixed to form a whole, for example, multiple modules are relatively fixed by connecting through a bottom plate, a cold plate, a cross beam 16, a longitudinal beam, a frame, etc. After the above modules are connected to form a whole, the whole is centrally arranged to occupy a certain concentrated space of the receiving space 11 in the battery pack 100, so as to make full use of the space in the battery pack 100, reduce the occupation of the space of the battery module 20, and improve the energy density.

[0074] The high-voltage module 30 provided in the embodiment of the utility model is formed into a whole by connecting a power distribution module 31, an electronic control module 32, a control module 33 and a power module 34 and arranged in a battery pack 100, and the control module 33 includes an integrated compressor control unit and a heating control unit, and the power module 34 includes an integrated DC conversion unit and an AC charging unit, thereby improving the integration level, being able to reduce connectors and wiring harnesses, reducing the cost of connection assembly, and reducing high-voltage safety risks.

[0075] refer to Figure 2 The electric control module 32, the control module 33 and the power module 34 are all electrically connected to the power distribution module 31. The charging and discharging of the battery module 20 must be performed through the power distribution module 31, so the electric control module 32, the control module 33 and the power module 34 are all electrically connected to the power distribution module 31 to realize the corresponding functions of each module.

[0076] Optional, reference Figure 2 , at least two of the power distribution module 31, the electric control module 32, the control module 33 and the power module 34 are integrated into one. Specifically, any two, any three or four of the above modules can be integrated into one, without limitation, so that the integration degree can be further improved, and the occupation of the accommodation space 11 in the battery pack 100 can be further reduced, so that more battery modules 20 can be arranged, and the energy density of the battery pack 100 is improved.

[0077] Optional, reference Figure 2 The power distribution module 31 includes an integrated high-voltage power distribution unit (PDU, Power Di str ibution Unit) (not shown), a circuit breaker unit (BDU, Battery Disconnect Unit) (not shown) and a battery sampling and execution unit (BASU) (not shown). Among them, the high-voltage power distribution unit is used for power distribution and control of the high-voltage system. The circuit breaker unit contains a voltage divider relay and a fuse, which is used for the safe disconnection of the battery module 20, and can effectively protect the high-voltage circuit. The battery sampling and execution unit is used for charging and discharging management, contactor control, power management, alarm and protection of abnormal battery status, calculation of battery status (SOC / SOH), communication, current and total voltage sampling, contactor sintering and leakage detection, etc. The above three units are integrated into the power distribution module 31, which improves the integration level.

[0078] Optional, reference Figure 2, the electric control module 32 includes a first electric control module 321 (not shown) and a second electric control module 322 (not shown), and the first electric control module 321 and the second electric control module 322 are respectively suitable for being electrically connected to different motors. For different vehicle models, the number of motors may be different. Single-motor vehicle models include front-wheel drive vehicles and rear-wheel drive vehicles, and dual-motor vehicles include four-wheel drive vehicles. Therefore, in this embodiment, the first electric control module 321 and the second electric control module 322 can control one motor respectively, and the four-wheel drive vehicle of the dual-motor vehicle model can be controlled. For the dual-motor vehicle model, one motor is used to drive the front wheel, and the other motor is used to drive the rear wheel, and the two motors are arranged at intervals in the front and rear directions of the vehicle. In one embodiment, the first electric control module 321 and the second electric control module 322 are also arranged at intervals, and the two can be located at the two ends of the outermost side of the high-voltage module 30, so as to shorten the distance with the corresponding two motors and reduce the length of the wiring harness.

[0079] For a single-motor vehicle, only one electronic control module 32 may be provided.

[0080] refer to Figure 1 and Figure 2 , and also includes a partition beam 35, which is suitable for being arranged in the battery pack 100 and separating an independent installation space 36, and the distribution module 31, the electronic control module 32, the control module 33 and the power module 34 are all accommodated in the installation space 36.

[0081] The partition beam 35 can be connected and fixed to the bottom plate or the cold plate, and its two ends in the length direction can be connected to the cross beam 16 / longitudinal beam and the frame respectively. The partition beam 35 can be two separated and arranged at intervals. In this way, an independent installation space 36 can be separated from the receiving space 11, so that the receiving space 11 is used to receive the battery module 20, and the installation space 36 is used to receive the high-voltage module 30. With the upper cover 40, the two spaces are not connected to each other, and thermal and electrical isolation is achieved to prevent the high-temperature gas generated by the battery module 20 from entering the installation space 36 and causing abnormal damage to the high-voltage module 30. The installation hole 19 opened on the frame is connected to the installation space 36, and is not connected to the receiving space 11 where the battery module 20 is received.

[0082] Optional, reference Figure 1 and Figure 2 At least one of the power distribution module 31, the electric control module 32, the control module 33 and the power supply module 34 is connected and fixed to the partition beam 35. Any one, any two, any three or four of the above modules can be connected and fixed to the partition beam 35, and the connection and fixing method can be screw connection, clamp connection, etc., without limitation. In this way, the module is fixed and the structural stability is improved.

[0083] Optional, reference Figure 2The power distribution module 31, the electric control module 32, the control module 33 and the power supply module 34 are connected and fixed to each other. The connection and fixing method can be screw connection, clamp connection, etc., which further improves the connection stability of each module.

[0084] In one embodiment, reference Figures 1 to 3 The high-voltage module 30 also includes a plug-in module 37, which is suitable for being connected and fixed to the tray 10 of the battery pack 100, and is electrically connected to the power distribution module 31, the electronic control module 32, the control module 33 and the power module 34.

[0085] There is no limitation on the specific structure of the plug-in module 37. The plug-in module 37 can be connected and fixed to the frame, bottom plate or cold plate of the tray 10 of the battery pack 100 so that the battery pack 100 is integrated with the plug-in module 37 without the need to independently set the plug-in module 37 and the battery pack 100, thereby improving the integration.

[0086] Optional, reference Figures 1 to 3 The plug-in module 37 includes a panel 371 and a low-voltage connector 372 , a DC conversion connector 373 , an AC charging connector 374 , a motor connector 375 and a DC charging connector 376 arranged on the panel 371 .

[0087] The panel 371 is suitable for being connected and fixed to the tray 10 of the battery pack 100. The shape of the panel 371 can be roughly adapted to the frame of the tray 10, and the size is slightly larger than the size of the mounting hole 19 opened at the frame. The panel 371 is connected and fixed to the frame, and the connection and fixing method can be screw connection, snap connection, etc. The panel 371 completely closes the mounting hole 19.

[0088] The low voltage connector 372 is electrically connected to the power distribution module 31 , the DC conversion connector 373 is electrically connected to the DC conversion unit, the AC charging connector 374 is electrically connected to the AC charging unit, the motor connector 375 is electrically connected to the electronic control module 32 , and the DC charging connector 376 is electrically connected to the power distribution module 31 .

[0089] One end of the low-voltage connector 372 is connected to the low-voltage part of any one or more of the power distribution module 31, the electronic control module 32, the control module 33 and the power module 34, and the other end is used to connect to the control system of the whole vehicle. One end of the DC conversion connector 373 is electrically connected to the DC conversion unit, and the other end is used to be electrically connected to the battery. One end of the AC charging connector 374 is electrically connected to the AC charging unit, and the other end is used to be electrically connected to the AC charging interface of the whole vehicle for low-voltage AC charging. One end of the motor connector 375 is electrically connected to the electronic control module 32, and the other end is used to be connected to the motor. One end of the DC charging connector 376 is electrically connected to the power distribution module 31, and the other end is used to be electrically connected to the DC charging interface of the whole vehicle for high-voltage DC charging.

[0090] The electrical connection between the modules and the connectors mentioned above may be by any feasible means such as copper busbars, wiring harnesses, etc., without limitation.

[0091] For a dual-motor vehicle model, when having a first electronic control module 321 and a second electronic control module 322, the two electronic control modules 32 can be electrically connected to the same motor connector 375, and then divided into two paths after being led out from the motor connector 375 and electrically connected to the two motors respectively. Alternatively, two motor connectors 375 can be set. The two motor connectors 375 can both be set on the panel 371 of the aforementioned plug-in module 37, or one can be set on the panel 371 of the plug-in module 37 and the other can be set at other positions of the battery pack 100. The two motor connectors 375 can be electrically connected to the two motors respectively.

[0092] Optional, reference Figure 4 The battery pack 100 may further include a control connector 377, which may also be integrated on the panel 371 of the plug-in module 37, or may be arranged at other locations of the battery pack 100, such as being arranged on a side beam of another frame opposite to the plug-in module 37, and not being integrated with the plug-in module 37. The control connector 377 is electrically connected to the aforementioned control module 33, and is used to be electrically connected to the compressor and the heater.

[0093] like Figure 1 and Figure 4 As shown, the plug-in module 37 is arranged on the first side beam 12, and a control connector 377 is arranged on the second side beam 13. Optionally, another motor connector 375 can be arranged on the second side beam 13 to form two motor connectors 375 with the motor connector 375 on the plug-in module 37, so as to be electrically connected to the two motors of the dual-motor vehicle model respectively.

[0094] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientation or positional relationship described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0095] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A high voltage module, characterized in that: Suitable for being arranged in a battery pack, the high voltage module comprises: Power distribution module; Electronic control module; A control module including an integrated compressor control unit and a heating control unit; A power module including an integrated DC conversion unit and an AC charging unit; Wherein, the power distribution module, the electric control module, the control module and the power supply module are connected to form a whole.

2. The high voltage module according to claim 1, characterized in that: The electric control module, the control module and the power supply module are all electrically connected to the power distribution module.

3. The high voltage module according to claim 1, characterized in that: At least two of the power distribution module, the electric control module, the control module and the power supply module are integrated into one.

4. The high voltage module according to claim 1, characterized in that: The power distribution module includes an integrated high-voltage power distribution unit, a circuit breaker unit and a battery sampling and execution unit.

5. The high voltage module according to claim 1, characterized in that: The electric control module includes a first electric control module and a second electric control module, and the first electric control module and the second electric control module are respectively suitable for being electrically connected to different motors.

6. The high voltage module according to claim 1, characterized in that: It also includes a partition beam, which is suitable for being arranged in the battery pack and separating an independent installation space, and the power distribution module, the electric control module, the control module and the power supply module are all accommodated in the installation space.

7. The high voltage module according to claim 6, characterized in that: At least one of the power distribution module, the electric control module, the control module and the power supply module is connected and fixed to the partition beam.

8. The high voltage module according to claim 6, characterized in that: The power distribution module, the electric control module, the control module and the power supply module are connected and fixed to each other.

9. The high voltage module according to any one of claims 1 to 8, characterized in that: It also includes a plug-in module, which is suitable for being connected and fixed to the tray of the battery pack and is electrically connected to the power distribution module, the electric control module, the control module and the power module.

10. The high voltage module according to claim 9, characterized in that: The plug-in module includes a panel and a low-voltage connector, a DC conversion connector, an AC charging connector, a motor connector and a DC charging connector arranged on the panel. The panel is suitable for being connected and fixed to the tray of the battery pack. The low-voltage connector is electrically connected to the power distribution module, the DC conversion connector is electrically connected to the DC conversion unit, the AC charging connector is electrically connected to the AC charging unit, the motor connector is electrically connected to the electronic control module, and the DC charging connector is electrically connected to the power distribution module.

11. A battery pack, characterized in that: It comprises a tray, a battery module and the high-voltage module according to any one of claims 1 to 10, wherein the tray has a receiving space, and the battery module and the high-voltage module are received in the receiving space.

12. The battery pack according to claim 11, characterized in that: There are multiple battery modules, which are arranged in sequence, and the high-voltage module is arranged between two adjacent battery modules.

13. The battery pack according to claim 11, characterized in that: The tray includes a frame with a mounting hole. The plug-in module of the high-voltage module is fixedly connected to the frame and is electrically connected to the distribution module, electronic control module, control module and power module of the high-voltage module accommodated in the accommodation space through the mounting hole.

14. The battery pack according to claim 11, characterized in that: The battery pack also includes an upper cover and an inspection cover. The upper cover is arranged on the tray and closes the receiving space. The upper cover is provided with an inspection port corresponding to the high-voltage module. The inspection cover is detachably connected to the upper cover and closes the inspection port.

15. A vehicle, characterized in that: It comprises a vehicle body and a battery pack as claimed in any one of claims 11 to 14, wherein the battery pack is connected and fixed to the vehicle body.

16. The vehicle according to claim 15, characterized in that The upper cover and the inspection cover of the battery pack are configured as the floor of the vehicle body.

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