Battery assembly and electric equipment

Abstract

The invention discloses a battery assembly and electric equipment, the battery assembly comprises a battery pack and a motor controller, the motor controller is integrated on the battery pack, and the motor controller is electrically connected with the battery pack. The motor controller is integrated on the battery pack, so that the cost of a shell of the motor controller can be saved, the arrangement space of the battery assembly can be saved, and the motor controller is electrically connected with the battery pack, so that the battery pack can supply power to the motor controller, and the battery assembly can drive a vehicle; furthermore, the battery pack and the motor controller can share cooling, so that the performance of the vehicle can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment, and in particular to a battery assembly and electrical equipment. Background Art

[0002] At present, electric vehicle technology is developing rapidly in the direction of intelligence and high integration. The power battery pack provides power output for the car, and its performance affects the overall performance and market competitiveness of the vehicle. The input end of the motor controller is connected to the power battery pack, and the output end is connected to the motor, so that the DC power of the battery pack can be converted into AC power for the motor.

[0003] In the related art, the battery pack and the motor controller are designed and used as two independent components. This causes the battery pack and the motor controller to occupy the space of the entire vehicle layout and reduces the integration of the vehicle, which is not conducive to the lightweight design of the vehicle. In addition, the shell material cost is high, which is not conducive to the vehicle control cost. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a battery assembly that can integrate a battery pack and a motor controller, thereby achieving a lightweight design and saving costs.

[0005] The present invention further provides an electrical device.

[0006] The battery assembly according to the present invention includes: a battery pack and a motor controller, wherein the motor controller is integrated on the battery pack and the motor controller is electrically connected to the battery pack.

[0007] According to the battery assembly of the present invention, the motor controller is integrated into the battery pack, thereby saving the cost of the motor controller housing and the layout space of the battery assembly. The motor controller and the battery pack are electrically connected, so that the battery pack can supply power to the motor controller. This can ensure that the battery assembly can realize the driving function of the vehicle, thereby improving the safety of the vehicle. In addition, the battery pack and the motor controller can share cooling, thereby improving the performance of the vehicle.

[0008] In some examples of the present invention, the battery assembly further includes: a temperature control unit and a charging and distribution control unit, and the temperature control unit and the charging and distribution control unit are both electrically connected to the battery pack.

[0009] In some examples of the present invention, the battery assembly further includes: a first connecting line and a second connecting line, wherein the first connecting line is connected between the temperature control unit and the battery pack, and the second connecting line is connected between the charging and distribution control unit and the battery pack.

[0010] In some examples of the present invention, the battery assembly also includes: a third connecting line and a fourth connecting line, the third connecting line is connected between the temperature control unit and the battery pack, one end of the fourth connecting line is connected to the charging and distribution control unit, and the other end of the fourth connecting line is connected to the third connecting line.

[0011] In some examples of the present invention, the battery assembly further includes: a vehicle heater, a compressor and a pre-charged battery, wherein the vehicle heater and the compressor are electrically connected to the temperature control unit, respectively, and the pre-charged battery is electrically connected to the charging and distribution control unit.

[0012] In some examples of the present invention, the battery assembly further includes: a drive motor, wherein the drive motor is electrically connected to the motor controller.

[0013] In some examples of the present invention, the temperature control unit, the charging and distribution control unit, the compressor and the drive motor are integrated.

[0014] In some examples of the present invention, the battery assembly also includes: a voltage divider contactor and a load contactor, the voltage divider controller is arranged between the battery pack and the motor controller to selectively connect and disconnect the battery pack and the motor controller, one end of the load contactor is electrically connected to the battery pack, and the other end of the load contactor is electrically connected to the temperature control unit and the charging and distribution control unit.

[0015] In some examples of the present invention, the battery assembly further includes: a charging port and a transmission, wherein the charging port is respectively connected to the charging and distribution control unit, the transmission and the motor controller so that the charging and distribution control unit, the transmission and the motor controller form a loop.

[0016] In some examples of the present invention, the battery assembly further includes: a charging boost capacitor, wherein the charging boost capacitor is respectively connected to the motor controller and the transmission.

[0017] In some examples of the present invention, the battery assembly also includes: a DC charging contactor, the DC charging contactor including: a DC charging positive contactor and a DC charging negative contactor, the DC charging positive contactor is arranged between the charging boost capacitor and the transmission, and the DC charging negative contactor is arranged between the battery pack and the charging port.

[0018] In some examples of the present invention, a bus capacitor is provided in the motor controller.

[0019] The electrical equipment according to the present invention comprises: the battery assembly described above.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 is a schematic diagram of a battery assembly according to an embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of a battery assembly applied to a rear-wheel drive vehicle;

[0024] Figure 3 It is a schematic diagram of a battery assembly applied to a four-wheel drive vehicle;

[0025] Figure 4 is a first topological diagram of a battery assembly according to an embodiment of the present invention;

[0026] Figure 5 is a second topological diagram of a battery assembly according to an embodiment of the present invention;

[0027] Figure 6 is a third topological diagram of a battery assembly according to an embodiment of the present invention;

[0028] Figure 7 is a fourth topological diagram of a battery assembly according to an embodiment of the present invention.

[0029] Reference numerals:

[0030] 100. Battery assembly;

[0031] 10. Battery pack; 11. Motor controller; 12. Temperature control unit; 13. Charging and distribution control unit; 14. First connecting line; 15. Second connecting line; 16. Car heater; 17. Compressor; 18. Pre-charged battery; 19. Drive motor; 31. Third connecting line; 32. Fourth connecting line;

[0032] 20. Voltage divider contactor; 21. Load contactor; 24. Charging port; 25. Transmission; 26. Charging boost capacitor; 27. DC charging contactor; 28. DC charging positive contactor; 29. ​​DC charging negative contactor; 30. Bus capacitor. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Embodiments of the present invention are described in detail below.

[0034] Reference below Figure 1-Figure 7A battery assembly 100 according to an embodiment of the present invention is described, and the battery assembly 100 is applied to an electrical device, for example, a battery pack in an electric vehicle.

[0035] like Figure 1 As shown, the battery assembly 100 according to the present invention includes: a battery pack 10 and a motor controller 11 , wherein the motor controller 11 is integrated on the battery pack 10 , and the motor controller 11 is electrically connected to the battery pack 10 .

[0036] Therefore, by integrating the motor controller 11 into the battery pack 10, the cost of the motor controller 11 housing can be saved, and the layout space of the battery assembly 100 can also be saved. The motor controller 11 and the battery pack 10 are electrically connected, so that the battery pack 10 can supply power to the motor controller 11. This can ensure that the battery assembly 100 can realize the driving function of the vehicle, thereby improving the safety of the vehicle. In addition, the battery pack 10 and the motor controller 11 can share cooling, thereby improving the performance of the vehicle.

[0037] In addition, if Figure 1 As shown, the battery assembly 100 further includes: a temperature control unit 12 and a charging and distribution control unit 13, both of which are electrically connected to the battery pack 10. It can be understood that the battery pack 10 is electrically connected to the temperature control power supply and the charging and distribution control unit 13, respectively, so that the battery pack 10 can provide power to the temperature control unit 12 and the charging and distribution control unit 13, so that the temperature control unit 12 can control the temperature of the vehicle, and the charging and distribution unit can charge the battery pack 10.

[0038] In addition, if Figure 1 As shown, the battery assembly 100 further includes: a first connection line 14 and a second connection line 15, wherein the first connection line 14 is connected between the temperature control unit 12 and the battery pack 10, and the second connection line 15 is connected between the charging and distribution control unit 13 and the battery pack 10. That is, the first connection line 14 is arranged between the temperature control unit 12 and the battery pack 10, so that the battery pack 10 can provide electric energy to the temperature control unit 12, thereby facilitating the temperature control unit 12 to realize the cooling and heating functions, and the second connection line 15 is arranged between the charging and distribution control unit 13 and the battery pack 10, thereby facilitating the charging and distribution unit to transfer electric energy to the battery pack 10, thereby enabling the electric energy to be recycled.

[0039] Among them, Figure 1As shown, the battery assembly 100 further includes: a third connection line 31 and a fourth connection line 32, the third connection line 31 is connected between the temperature control unit 12 and the battery pack 10, one end of the fourth connection line 32 is connected to the charging and distribution control unit 13, and the other end of the fourth connection line 32 is connected to the third connection line 31. It can be understood that the third connection line 31 is arranged between the temperature control unit 12 and the battery pack 10, so that the battery pack 10 can provide electric energy to the temperature control unit 12, thereby facilitating the temperature control unit 12 to achieve the cooling and heating functions, and the fourth connection line 32 is connected between the charging and distribution control unit 13 and the third connection line 31, so that the battery pack 10 can be connected to the temperature control unit 12 and the charging and distribution control unit 13 respectively, thereby improving the integration of the battery assembly 100, reducing electromagnetic pollution, and thus improving the performance of the vehicle.

[0040] In addition, if Figure 1 As shown, the battery assembly 100 also includes: a car heater 16, a compressor 17 and a pre-charged battery 18. The car heater 16 and the compressor 17 are electrically connected to the temperature control unit 12 respectively, and the pre-charged battery 18 is electrically connected to the charging and distribution control unit 13. That is, the temperature control unit 12 is connected to the car heater 16 and the compressor 17. This arrangement allows the compressor 17 to perform a cooling process after the battery pack 10 supplies power to the temperature control unit 12, thereby realizing the air conditioning cooling function of the vehicle, or the car heater 16 performs a heating process, thereby generating heat, and then realizing the heating function of the vehicle. The charging and distribution control unit 13 is electrically connected to the pre-charged battery 18, and the pre-charged battery 18 converts low-voltage electricity into high-voltage electricity, thereby enabling the pre-charged battery 18 to realize the pre-charge function. Before the vehicle starts the circuit command, the pre-charged battery 18 can pre-charge the battery assembly 100, thereby enabling the vehicle to start the circuit more safely and stably. For example, the pre-charged battery 18 is a 12V battery.

[0041] In addition, if Figure 1 As shown, the battery assembly 100 further includes: a drive motor 19, which is electrically connected to the motor controller 11. It can be understood that the drive motor 19 can enable the battery assembly 100 to form a boost chopper circuit, and the drive motor 19 is started when the vehicle meets the boost charging conditions, thereby increasing the charging voltage and the charging rate, thereby realizing the power distribution function of the vehicle.

[0042] In particular, if Figure 1 As shown, the temperature control unit 12, the charging and distribution control unit 13, the compressor 17 and the drive motor 19 are integrated. Such an arrangement can improve the integration of the battery assembly 100, thereby saving costs and saving the layout space of the battery assembly 100.

[0043] In addition, if Figure 2 and Figure 3 As shown, the battery assembly 100 also includes: a voltage divider contactor 20 and a load contactor 21. The voltage divider controller is arranged between the battery pack 10 and the motor controller 11 to selectively switch the battery pack 10 and the motor controller 11 on and off. One end of the load contactor 21 is electrically connected to the battery pack 10, and the other end of the load contactor 21 is electrically connected to the temperature control unit 12.

[0044] That is to say, a voltage divider controller is arranged between the battery pack 10 and the motor controller 11, and the voltage divider controller is electrically connected to the battery pack 10 and the motor controller 11 respectively, so that the voltage divider controller can connect the battery pack 10 and the motor controller 11, and a load contactor 21 is arranged between the battery pack 10 and the temperature control unit 12, so that the load contactor 21 can connect the battery pack 10 and the temperature control unit 12, thereby facilitating the battery pack 10 to provide electrical energy to the temperature control unit 12.

[0045] In addition, if Figure 2 and Figure 3 As shown, the battery assembly 100 further includes: a charging port 24 and a transmission 25, and the charging port 24 is respectively connected to the charging and distribution control unit 13, the transmission 25 and the motor controller 11, so that the charging and distribution control unit 13, the transmission 25 and the motor controller 11 form a loop. In other words, the charging port 24 is connected to the charging and distribution control unit 13, the transmission 25 and the motor controller 11. Thus, the charging and distribution control unit 13, the transmission 25 and the motor controller 11 can form a loop, and then the current can flow in the battery assembly 100.

[0046] In addition, if Figure 2 and Figure 3 As shown, the battery assembly 100 also includes: a charging boost capacitor 26, which is respectively connected to the motor controller 11 and the transmission 25. This arrangement allows the battery assembly 100 to form a boost chopper circuit. When the vehicle meets the conditions for boost charging, the drive motor 19 is started, thereby increasing the charging voltage and the charging rate, thereby realizing the power distribution function of the vehicle.

[0047] In addition, if Figure 2 and Figure 3As shown, the battery assembly 100 further includes: a DC charging contactor 27, the DC charging contactor 27 includes: a DC charging positive contactor 28 and a DC charging negative contactor 29, the DC charging positive contactor 28 is arranged between the charging boost capacitor 26 and the transmission 25, the DC charging negative contactor 29 is arranged between the battery pack 10 and the charging port 24, and a bus capacitor 30 is arranged in the motor controller 11. It can be understood that the DC charging positive contactor 28 is arranged between the charging boost capacitor 26 and the transmission 25, so that the DC charging positive contactor 28 can be connected to the charging boost capacitor 26 and the transmission 25, the DC charging negative contactor 29 is arranged between the battery pack 10 and the charging port 24, so that the DC charging negative contactor 29 can be connected to the battery pack 10 and the charging port 24, and the bus capacitor 30 is located in the motor controller 11, so that the bus capacitor 30 can eliminate the high-frequency noise inside the motor controller 11, thereby improving the performance of the battery assembly 100.

[0048] Specifically, Figure 2 and Figure 3 As shown, the battery assembly 100 can be set in a rear-wheel drive or four-wheel drive electric vehicle. At this time, the battery assembly 100 can be divided into three processes: pre-charging, driving, and charging boost. Pre-charging process: before the vehicle is powered on, the voltage-dividing contactor 20 is disconnected, and before the voltage-dividing controller is closed, the bus capacitor 30 is pre-charged. It is necessary to ensure that the potentials at both ends of the voltage-dividing controller are equal. At the same time, the load contactor 21 is closed, and the charging and distribution control unit 13 is connected to the battery pack 10. The battery pack 10 performs boost pre-charging on the pre-charged battery 18. When the potentials at both ends of the voltage-dividing contactor 20 are equal and meet the pull-in condition, the voltage-dividing contactor 20 is pulled in, so that the power-on process can be completed; after the vehicle is powered on, the air conditioner or heater is turned on according to the needs of the driver and passengers, the voltage-dividing contactor 20 is closed, the load contactor 21 is disconnected, and the capacitor in the temperature control unit 12 is pre-charged, so that the power supply conditions can be met. The charging and distribution control unit 13 and the pre-charged battery 18 are boosted and pre-charged, and the load contactor 21 is pulled in, so that the vehicle can complete the power supply to the air conditioner or heater.

[0049] Driving process: After the vehicle is powered on, the power supply conditions of the motor controller 11 are met, so that the motor controller 11 can convert the high-voltage direct current of the battery pack 10 into three-phase alternating current, and then output it to the motor through the battery assembly 100, thereby completing the movement of the vehicle.

[0050] Charging boost process: The winding of the drive motor 19 can act as an inductive element in the circuit, and combined with the charging boost capacitor 26 and the DC charging positive contactor 28, a boost chopper circuit can be formed. The DC high voltage enters through the AC / DC integrated charging port 24, and when the conditions for boost charging are met, it enters the battery pack 10 through the boost chopper circuit, thereby increasing the charging speed.

[0051] Preferably, if Figure 4 As shown, the first connecting line 14 and the second connecting line 15 are combined into one connecting line, thereby reducing the cost and improving the sealing performance of the battery assembly 100 .

[0052] Preferably, if Figure 5 As shown, the temperature control unit 12, the charging and distribution control unit 13, the compressor 17 and the transmission 25 are integrated, so as to save the layout space of the vehicle and thus save costs, and also enable the motor controller 11 and the drive motor 19 to share a cooling cycle, thereby improving the thermal management efficiency of the vehicle.

[0053] Preferably, if Figure 6 As shown, the first connecting line 14 and the second connecting line 15 are combined into one connecting line, and the battery pack 10 and the motor controller 11 are connected to the temperature control unit 12 and the charging and distribution control unit 13 through one wire, thereby reducing the use of wires and further improving the integration of the battery assembly 100.

[0054] Preferably, if Figure 7 As shown, the battery pack 10 and the motor controller 11 are connected to the temperature control unit 12 and the charging and distribution control unit 13 through connectors, the drive motor 19 is arranged separately, and the compressor 17 is integrated with the temperature control unit 12 and the charging and distribution control unit 13, so that the cooling benefits can be shared.

[0055] The electrical equipment according to the present invention includes: the battery assembly 100 of the above embodiment, by integrating the motor controller 11 on the battery pack 10, thereby saving the cost of the motor controller 11 housing and the layout space of the battery assembly 100, and the motor controller 11 and the battery pack 10 are electrically connected, so that the battery pack 10 can supply power to the motor controller 11, which can ensure that the battery assembly 100 can realize the driving function of the vehicle, thereby improving the safety of the vehicle, and the battery pack 10 and the motor controller 11 can share cooling, thereby improving the performance of the vehicle.

[0056] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown 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 should not be understood as limiting the present invention.

[0057] In the description of the present invention, "first feature" and "second feature" may include one or more of the features. In the description of the present invention, "plurality" means two or more. In the description of the present invention, a first feature "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. In the description of the present invention, a first feature "above", "above" and "above" a second feature may include the first feature being directly above and obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0059] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A battery assembly, characterized in that: include: Battery pack; A motor controller is integrated on the battery pack and is electrically connected to the battery pack.

2. The battery assembly according to claim 1, characterized in that: Also includes: A temperature control unit and a charging and distribution control unit, both of which are electrically connected to the battery pack.

3. The battery assembly according to claim 2, characterized in that: Also includes: A first connecting line and a second connecting line, wherein the first connecting line is connected between the temperature control unit and the battery pack, and the second connecting line is connected between the charging and distribution control unit and the battery pack.

4. The battery assembly according to claim 2, characterized in that: Also includes: A third connecting line and a fourth connecting line, wherein the third connecting line is connected between the temperature control unit and the battery pack, one end of the fourth connecting line is connected to the charging and distribution control unit, and the other end of the fourth connecting line is connected to the third connecting line.

5. The battery assembly according to claim 3 or 4, characterized in that: Also includes: A car heater, a compressor and a pre-charged battery, wherein the car heater and the compressor are electrically connected to the temperature control unit respectively, and the pre-charged battery is electrically connected to the charging and distribution control unit.

6. The battery assembly according to claim 5, characterized in that: Also includes: A drive motor is electrically connected to the motor controller.

7. The battery assembly according to claim 6, characterized in that: The temperature control unit, the charging and distribution control unit, the compressor and the drive motor are integrated.

8. The battery assembly according to claim 2, characterized in that: Also includes: A voltage divider contactor and a load contactor, wherein the voltage divider controller is arranged between the battery pack and the motor controller to selectively switch on and off the battery pack and the motor controller, one end of the load contactor is electrically connected to the battery pack, and the other end of the load contactor is electrically connected to the temperature control unit and the charging and distribution control unit respectively.

9. The battery assembly according to claim 2, characterized in that: Also includes: A charging port and a transmission, wherein the charging port is respectively connected to the charging and distribution control unit, the transmission and the motor controller, so that the charging and distribution control unit, the transmission and the motor controller form a loop.

10. The battery assembly according to claim 9, characterized in that: Also includes: A charging boost capacitor is connected to the motor controller and the transmission respectively.

11. The battery assembly according to claim 10, characterized in that: Also includes: A DC charging contactor, the DC charging contactor includes a DC charging positive contactor and a DC charging negative contactor, the DC charging positive contactor is arranged between the charging boost capacitor and the transmission, and the DC charging negative contactor is arranged between the battery pack and the charging port.

12. The battery assembly according to claim 9, characterized in that: A bus capacitor is arranged in the motor controller.

13. An electrical equipment, characterized in that: include: The battery assembly according to any one of claims 1 to 12.

Images