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CN-121989695-A - High-voltage box, power battery and electric vehicle

CN121989695ACN 121989695 ACN121989695 ACN 121989695ACN-121989695-A

Abstract

The invention discloses a high-voltage box (30) and a power battery and an electric vehicle thereof, wherein the high-voltage box (30) is electrically connected between a power battery system and a driving system of the electric vehicle, the high-voltage box (30) comprises a shell (3), a transit connector (33) connected with the power battery system, a power transmission connector (32) electrically connected with the driving system and a charging socket (31) which is in plug-in matching with a charging gun (50) are arranged on the shell (3) of the high-voltage box (30), the high-voltage box (30) is directly in plug-in matching with the charging gun (50), the transit cable is saved, the number of connectors is reduced, the cost of parts and the hidden danger of quality are reduced, and the power battery adopting the high-voltage box has the advantages of easy maintenance and higher energy density.

Inventors

  • LI LIGUO
  • Cao Kaichuang

Assignees

  • 四川智锂智慧能源科技有限公司

Dates

Publication Date
20260508
Application Date
20241108

Claims (10)

  1. 1. The utility model provides a high-voltage box (30) for electric connection is between power battery system and electric vehicle's actuating system, high-voltage box (30) include casing (3), its characterized in that, be equipped with on casing (3) of high-voltage box (30) with power battery system continuous transfer joint (33), with actuating system electric connection's power transmission joint (32) and with charging gun (50) connect plug-in matched socket (31) that charges.
  2. 2. The high-voltage cartridge (30) as claimed in claim 1, wherein the charging connector (31) comprises a socket (310), a protective cover is arranged outside the socket (310), the protective cover is movably connected to the housing (3), and the protective cover is used for opening or closing the socket (310).
  3. 3. The high voltage cartridge (30) as claimed in claim 1, wherein the plurality of charging sockets (31) is provided, and the protective cover comprises a first protective cover (311) covering the plurality of charging sockets (31) at the same time and a second protective cover (312) covering the respective charging sockets (31) and the socket (310).
  4. 4. A power battery (100) mounted on a frame (200) of an electric vehicle, the power battery (100) comprising a battery compartment (10) for storing a battery system, the bottom of the battery compartment (10) being mounted on the frame (200), characterized in that the power battery (100) further comprises a high voltage box (30) as claimed in any one of claims 1 to 3 detachably mounted on the bottom of the battery compartment (10) and located on one side of the frame (200), the side of the high voltage box (30) on which the charging socket (31) is mounted being directed towards the outside of the electric vehicle.
  5. 5. The power battery (100) according to claim 4, wherein the battery compartment (10) comprises a housing (110), the housing (110) comprises a bottom plate (103) with one side provided with the high-voltage box (30), the bottom plate (103) is provided with an avoidance gap (121) at one side close to the high-voltage box (30), the transit connector (33) is electrically connected with the battery system through a second cable, and the second cable passes through the avoidance gap (121).
  6. 6. The power cell (100) according to claim 5, wherein the housing (110) of the battery compartment (10) is provided with an end plate (12) on the side where the high-voltage box (30) is mounted, and a wiring space (130) is provided between the end plate (12) and the battery system.
  7. 7. The power cell (100) as claimed in claim 6, wherein the connection space (130) is aligned in the vertical direction with the relief gap (121).
  8. 8. The power cell (100) according to claim 4, wherein a step (13) is formed between the cell compartment (10) and the high-voltage case (30), the height of the step (13) is equal to the thickness of the high-voltage case (30), and the charging connector (31) extends outward beyond the high-voltage case (30) by a length not exceeding the width of the step.
  9. 9. The power cell (100) according to claim 4, wherein the electric vehicle comprises a drive system, and wherein the power transmission connector (32) of the high-voltage box (30) is electrically connected with the drive system through a first cable, and a part of the first cable is fixedly connected to the frame (200).
  10. 10. An electric vehicle having a head and a frame (200), characterized in that the frame (200) is provided with a power cell (100) according to any one of claims 4 to 9.

Description

High-voltage box, power battery and electric vehicle Technical Field The invention relates to the technical field of new energy vehicles, in particular to a high-voltage box, a power battery thereof and an electric vehicle. Background Compared with the traditional fuel truck, the new energy electric vehicle is more environment-friendly, the running cost is not influenced by the rising and falling of the price of oil, the cost control is facilitated, the existing new energy electric vehicle generally adopts a power battery to provide electric energy and utilizes a high-voltage box to manage the whole vehicle high-voltage distribution, but the high-voltage box in the prior art is generally arranged in the power battery or the electric vehicle and is then connected to a charging interface through a wire and cable, for example, the high-voltage boxes disclosed by Chinese patent No. CN210182526U published in 24 month in 2020 and the high-voltage box disclosed by Chinese patent No. CN219833052U published in 10 month in 2023 are not provided with a charging gun, namely, when the existing high-voltage box is used for charging the power battery, the high-voltage box needs to be connected through the cable. On the other hand, in existing electric vehicles, such as electric trucks, a large-sized battery is fixedly mounted on a vehicle frame by combining a frame and the vehicle frame, such as a mine card back battery box disclosed in the chinese patent No. CN220963592U published by 5/14 of 2024, the battery box adopts a frame assembly to support a battery assembly, and a socket bracket is provided on a bearing beam of the frame assembly, which means that a high-voltage box between a charging hole and the battery assembly is integrated inside the battery box, which is not beneficial to compactly arrange the battery cells together, is also inconvenient to overhaul and maintain the high-voltage box, and meanwhile, due to excessive wire connection, the probability of failure increases, and due to certain requirements of the frame assembly on structural strength, the weight of the frame assembly itself is not small, that is, the existing high-voltage box, power battery and electric vehicle have room for improvement in space distribution and overall weight. Disclosure of Invention Aiming at the defects in the prior art, the invention aims to provide a high-voltage box, wherein a charging interface matched with a charging gun is directly arranged on the high-voltage box, so that the material of a transfer cable is saved, and the number of joints is reduced. In order to achieve the above purpose, the present invention adopts the following technical scheme: The utility model provides a high-voltage box for electric connection is between driving system of power battery system and electric vehicle, the high-voltage box includes the casing, be equipped with on the casing of high-voltage box with the power battery system link to each other well adapter, with driving system electric connection's power transmission joint and with charge rifle connect the charging socket that matches. Further, the charging connector comprises a socket, a protective cover is arranged outside the socket and movably connected to the shell, and the protective cover is used for opening or closing the socket. Further, the charging sockets are multiple, and the protective cover comprises a first protective cover which covers the charging sockets simultaneously and a second protective cover which covers the charging socket connectors respectively. The invention also aims to provide the power battery, the independent high-voltage box is stripped and arranged externally, and the power battery is more beneficial to overhauling and maintaining the power battery while higher energy density is obtained. In order to achieve the above purpose, the present invention adopts the following technical scheme: The utility model provides a power battery installs on electric vehicle's frame, power battery includes the battery compartment that is used for depositing battery system, the bottom of battery compartment is installed on the frame, power battery still includes the high-voltage box as described above that detachably installs in battery compartment bottom and is located frame one side, and the one side of high-voltage box installation charge socket is towards electric vehicle's outside. Further, the battery compartment comprises a shell, the shell comprises a bottom plate with one side provided with the high-voltage box, an avoidance gap is formed in one side, close to the high-voltage box, of the bottom plate, the transfer connector is electrically connected with the battery system through a second cable, and the second cable passes through the avoidance gap. Further, an end plate is arranged on one side of the shell of the battery compartment, where the high-voltage box is installed, and a wiring space is arranged between the end plate and the battery system. Further