CN-224232767-U - Power battery pack, battery system and vehicle

Abstract

The application discloses a power battery pack, a battery system and a vehicle, and relates to the technical field of batteries. The power battery pack comprises a shell, a first battery pack, a second battery pack and a control unit, wherein the shell is provided with a containing cavity, the first battery pack and the second battery pack are arranged in the containing cavity, the output voltage of the first battery pack is higher than that of the second battery pack, the first battery pack is connected with the second battery pack, the control unit is arranged in the containing cavity, and the control unit is electrically connected with the first battery pack and the second battery pack respectively. According to the power battery pack disclosed by the embodiment of the application, the first battery pack and the second battery pack are arranged in the same shell, so that the single exclusive space of the battery is reduced, the space resources occupied by the battery are reduced, and the space utilization rate is improved. In addition, the control unit is respectively connected with two groups of batteries in the accommodating cavity, so that external complex circuits are reduced, circuit loss and fault risks are reduced, and system stability and reliability are enhanced.

Inventors

• OUYANG KUNCHUAN
• CHEN JIAGANG
• LIU SHAOHUI

Assignees

• 浙江凌骁能源科技有限公司
• 浙江零跑科技股份有限公司

Dates

Publication Date

20260512

Application Date

20250428

Claims (10)

1. 1. A power cell pack comprising: a housing (10) having a receiving chamber (11); A first battery pack (20) and a second battery pack (30) disposed in the accommodation chamber (11), the output voltage of the first battery pack (20) being higher than the output voltage of the second battery pack (30); And the control unit (40) is arranged in the accommodating cavity (11), and the control unit (40) is electrically connected with the first battery pack (20) and the second battery pack (30) respectively.
2. 2. The power cell pack of claim 1, further comprising: The first cross beam (50) is arranged in the accommodating cavity (11) and is connected with the shell (10), one side of the first cross beam (50) is provided with the first battery pack (20), and one side of the first cross beam (50) opposite to the first battery pack (20) is provided with the second battery pack (30) and the control unit (40).
3. 3. The power battery pack according to claim 2, wherein the first battery pack (20) includes a first battery module (21); The power battery pack further includes: The second cross beam (60) is arranged in the accommodating cavity (11) and is connected with the shell (10), the first cross beam (50) and the second cross beam (60) are intersected and arranged on the side edge of the first battery module (21), wiring harnesses are arranged on the first cross beam (50) and the second cross beam (60), and the wiring harnesses are respectively connected with the control unit (40) and the first battery pack (20).
4. 4. The power cell pack of claim 1, further comprising: The heat dissipation element (70) is arranged in the accommodating cavity (11), and the heat dissipation element (70) is arranged on one side of the first battery pack (20) and one side of the second battery pack (30) and covers the surfaces of the first battery pack (20) and the second battery pack (30) facing the heat dissipation element (70).
5. 5. The power cell pack of claim 4 wherein the battery pack comprises a battery, The heat dissipation element (70) has a water inlet (71) and a water outlet (72); The shell (10) is provided with a first hole (12) and a second hole (13), the water inlet (71) is connected with the first hole (12) through a water inlet pipe, and the water outlet (72) is connected with the second hole (13) through a water outlet pipe.
6. 6. The power cell pack of claim 4, further comprising: The fixing support (80) is arranged in the accommodating cavity (11) and is connected with the shell (10), the fixing support (80) is arranged on one side, facing the shell (10), of the radiating element (70), and the fixing support (80) is connected with the radiating element (70).
7. 7. The power cell pack of claim 1, wherein the battery pack comprises a battery, An output plug connector (14) is arranged at one end, close to the second battery pack (30), of the shell (10), and the output plug connector (14) is connected with the second battery pack (30).
8. 8. The power cell pack of claim 1, further comprising: And a temperature detection unit (90) which is arranged in the accommodating cavity (11) and is connected with the control unit (40).
9. 9. A battery system comprising the power cell pack of any one of claims 1 to 8.
10. 10. A vehicle comprising the battery system according to claim 9 or comprising the power battery pack according to any one of claims 1 to 8.

Description

Power battery pack, battery system and vehicle Technical Field The application relates to the technical field of batteries, in particular to a power battery pack, a battery system and a vehicle. Background In electric and hybrid vehicles, it is often necessary to combine a high-voltage battery system with a low-voltage battery system to achieve proper operation of the vehicle. The high-voltage battery is used as a main power source and is responsible for providing high-voltage power output for the main drive motor so as to drive the vehicle to run, and the low-voltage battery is used for providing stable low-voltage power supply support for the vehicle-mounted electric system. Currently, in most vehicles, the battery is typically configured as a stand-alone component and mounted outside of the high-voltage battery pack. Such a separate solution would additionally occupy space resources, resulting in a shortage of vehicle body layout space. Disclosure of utility model The embodiment of the application provides a power battery pack, a battery system and a vehicle, which reduce space resources occupied by batteries and improve space utilization. In a first aspect, an embodiment of the present application provides a power battery pack, including: A housing having a receiving cavity; The first battery pack and the second battery pack are arranged in the accommodating cavity, and the output voltage of the first battery pack is higher than that of the second battery pack; The control unit is arranged in the accommodating cavity and is electrically connected with the first battery pack and the second battery pack respectively. In some embodiments, the power cell pack further comprises: The first cross beam is arranged in the accommodating cavity and connected with the shell, a first battery pack is arranged on one side of the first cross beam, and a second battery pack and a control unit are arranged on one side of the first cross beam opposite to the first battery pack. In some embodiments, the first battery pack includes a first battery module; The power battery pack further includes: The second cross beam is arranged in the accommodating cavity and connected with the shell, the first cross beam and the second cross beam are intersected and arranged on the side edge of the first battery module, wiring harnesses are arranged on the first cross beam and the second cross beam, and the wiring harnesses are respectively connected with the control unit and the first battery pack. In some embodiments, the power cell pack further comprises: The heat dissipation element is arranged in the accommodating cavity, is arranged on one side of the first battery pack and one side of the second battery pack, and covers the surfaces of the first battery pack and the second battery pack, which face the heat dissipation element. In some embodiments, the heat dissipating element has a water inlet and a water outlet; The shell is provided with a first hole and a second hole, the water inlet is connected with the first hole through a water inlet pipe, and the water outlet is connected with the second hole through a water outlet pipe. In some embodiments, the power cell pack further comprises: the fixing support is arranged in the accommodating cavity and connected with the shell, the fixing support is arranged on one side of the radiating element, which faces the shell, and the fixing support is connected with the radiating element. In some embodiments, an output connector is disposed at an end of the housing adjacent to the second battery pack, and the output connector is connected to the second battery pack. In some embodiments, the power cell pack further comprises: the temperature detection unit is arranged in the accommodating cavity and is connected with the control unit. In a second aspect, an embodiment of the present application provides a battery system including the power battery pack in the above embodiment. In a third aspect, an embodiment of the present application further provides a vehicle including the battery system in the above embodiment, or including the power battery pack in the above embodiment. The power battery pack has the beneficial effects that the power battery pack comprises a shell, a first battery pack, a second battery pack and a control unit, wherein the shell is provided with an accommodating cavity, the first battery pack and the second battery pack are arranged in the accommodating cavity, the output voltage of the first battery pack is higher than that of the second battery pack, the first battery pack is connected with the second battery pack, the control unit is arranged in the accommodating cavity, and the control unit is respectively and electrically connected with the first battery pack and the second battery pack. According to the power battery pack disclosed by the embodiment of the application, the first battery pack and the second battery pack are arranged in the same shell, so that the sin