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WO-2026091082-A1 - BATTERY DEVICE, ENERGY STORAGE DEVICE, ENERGY STORAGE SYSTEM, ELECTRIC DEVICE, AND CHARGING NETWORK

WO2026091082A1WO 2026091082 A1WO2026091082 A1WO 2026091082A1WO-2026091082-A1

Abstract

The present application relates to the technical field of battery production, and provides a battery device, an energy storage device, an energy storage system, an electric device, and a charging network. The battery device comprises a battery cell assembly, a case, first conductive connectors, a power distribution assembly, and locking assemblies. The case is provided with an accommodating space and a mounting space. The battery cell assembly is accommodated in the accommodating space. The case is formed with an insertion port. The first conductive connectors are connected to the case and are electrically connected to the battery cell assembly. The power distribution assembly comprises a housing, electronic system assemblies, and second conductive connectors. The housing is provided with an accommodating cavity. The electronic system assemblies are placed in the accommodating cavity. The second conductive connectors are electrically connected to the electronic system assemblies. The housing is connected to the case and is inserted into the mounting space. The second conductive connectors are electrically connected to the first conductive connectors. The housing is provided operation openings. The locking assemblies are connected between the housing and the case or between the first conductive connectors and the second conductive connectors. The operation openings extend through to the locking assemblies. The present application aims to improve the convenience of disassembly of the power distribution assembly.

Inventors

  • QIU, Guanda
  • WANG, CHONG
  • Li, Yuanxin

Assignees

  • 宁德时代新能源科技股份有限公司

Dates

Publication Date
20260507
Application Date
20241101

Claims (19)

  1. A battery device (1100), characterized in that it comprises: Battery cell module (1120); The housing (1110) has a receiving space (1113) and an installation space (1114), the battery cell assembly (1120) is housed in the receiving space (1113), and the housing (1110) has an insertion interface (1115) that communicates with the installation space (1114). The first guide (1130) is connected to the housing (1110) and located in the installation space (1114), and the first guide (1130) is electrically connected to the battery cell assembly (1120); A power distribution assembly (1140) includes a housing (1141), an electronic system assembly (1144), and a second conductor (1143). The housing (1141) has a receiving cavity (11411). The electronic system assembly (1144) is connected to the housing (1141) and housed in the receiving cavity (11411). The second conductor (1143) is electrically connected to the electronic system assembly (1144). The housing (1141) is connected to the enclosure (1110) and is inserted into the mounting space (1114) via a connector (1115). The second conductor (1143) is electrically connected to the first conductor (1130). The housing (1141) has an operating port (11415). A locking assembly (1150) is connected between the housing (1141) and the box (1110), or the locking assembly (1150) is connected between the first guide (1130) and the second guide (1143); the operating port (11415) extends through the locking assembly (1150).
  2. The battery device (1100) as claimed in claim 1 is characterized in that the second guide member (1143) is housed in the receiving cavity (11411), the locking assembly (1150) is disposed in the receiving cavity (11411), and the operating port (11415) extends into the receiving cavity (11411) and is disposed opposite to the locking assembly (1150).
  3. The battery device (1100) as claimed in claim 1 is characterized in that the power distribution assembly (1140) further includes a cover (1142), the cover (1142) being detachably connected to the housing (1141), and the cover (1142) covering the operating port (11415).
  4. The battery device (1100) according to any one of claims 1-3 is characterized in that the first guide member (1130) includes a second guide piece electrically connected to the battery cell assembly (1120), the second guide member (1143) includes a second guide piece electrically connected to the electronic system assembly (1144), the first guide piece and the second guide piece are in contact connection; the locking assembly (1150) is connected between the first guide piece and the second guide piece.
  5. The battery device (1100) according to any one of claims 1-3 is characterized in that the locking assembly (1150) includes a first locking structure (1151) and a second locking structure (1152), the first locking structure (1151) is connected to the housing (1110), and the first locking structure (1151) and the second locking structure (1152) are threadedly connected so that the first guide piece and the second guide piece are limited to be located between the first locking structure (1151) and the second locking structure (1152).
  6. The battery device (1100) as claimed in claim 5 is characterized in that either the first locking structure (1151) or the second locking structure (1152) is a stud structure and the other is a nut structure, wherein the stud structure and the nut structure are threadedly connected.
  7. The battery device (1100) as claimed in claim 4 is characterized in that the first locking structure (1151) is a stud structure, the second locking structure (1152) is a nut structure, and the locking assembly (1150) further includes an insulating seat (1153) connected to the housing (1110), wherein the stud structure is connected to the insulating seat (1153).
  8. The battery device (1100) according to any one of claims 1-3 is characterized in that the battery device (1100) further includes a guide assembly (1170) connected between the housing (1110) and the casing (1141).
  9. The battery device (1100) as claimed in claim 8 is characterized in that the guide assembly (1170) includes a first guide structure (1171) connected to the housing (1141) and a second guide structure (1172) connected to the housing (1110), the first guide structure (1171) and the second guide structure (1172) being plugged into each other, the first guide structure (1171) being slidable relative to the second guide structure (1172) along a first direction (X), the first direction (X) being parallel to the depth direction of the insertion interface (1115).
  10. The battery device (1100) according to any one of claims 1-3 is characterized in that the battery device (1100) further includes a limiting component (1160) connected between the housing (1141) and the casing (1110), the limiting component (1160) being used to limit the movement of the housing (1141) relative to the casing (1110) along a second direction (Y), the second direction (Y) being perpendicular to the depth direction of the insertion interface (1115).
  11. The battery device (1100) as claimed in claim 10 is characterized in that the limiting component (1160) includes a first limiting structure (1161) connected to the housing (1141) and a second limiting structure (1162) connected to the box body (1110), wherein the first limiting structure (1161) and the second limiting structure (1162) are inserted into each other along the second direction (Y).
  12. The battery device (1100) according to any one of claims 1-3 is characterized in that the housing (1141) includes a housing body (11413) and a panel portion (11412), the housing body (11413) having the receiving space (1113), the electronic system component (1144) being connected to the housing body (11413), and the locking component (1150) being connected between the housing body (11413) and the housing (1110); the panel portion (11412) being connected to the housing body (11413), the housing body (11413) being inserted into the mounting space (1114), the panel portion (11412) being exposed in the mounting space (1114), and the edge of the panel portion (11412) extending to the outer periphery of the insertion interface (1115) and connecting to the surface of the housing body (11413).
  13. The battery device (1100) according to any one of claims 1-3 is characterized in that the housing (1110) includes a frame (1117) and a cover (1116), the cover (1116) is detachably connected to the frame (1117) and together with the frame (1117) forms the accommodating space (1113) and the mounting space (1114); the insertion interface (1115) is opened on the frame (1117), and the housing (1141) is provided with an open opening (11414) communicating with the accommodating cavity (11411), the open opening (11414) being disposed opposite to the cover (1116).
  14. The battery device (1100) as claimed in claim 13 is characterized in that the cover (1116) includes a first sub-cover (11161) and a second sub-cover (11162) connected to the first sub-cover (11161), the first sub-cover (11161) and the second sub-cover (11162) are detachably connected to the frame (1117), the first sub-cover (1116) is disposed opposite to the battery cell assembly (1120), and the second sub-cover (1116) is disposed opposite to the opening (11414).
  15. The battery device (1100) according to any one of claims 1-3 is characterized in that the housing (1110) includes a first sub-housing portion (1118) and a second sub-housing portion (1119), the first sub-housing portion (1118) has the accommodating space (1113), the second sub-housing portion (1110) has the mounting space (1114), the housing (1141) and the first guide member (1130) are both connected to the second sub-housing portion (1110), and the second sub-housing portion (1119) is detachably connected to the first sub-housing portion (1118).
  16. An energy storage device, characterized in that it includes a plurality of battery devices (1100) as described in any one of claims 1-15, the battery devices (1100) being used to store or provide electrical energy.
  17. An energy storage system includes a power conversion device and an energy storage device as claimed in claim 16, wherein the power conversion device is used to electrically connect a power generation device and the energy storage device.
  18. An electrical device includes a battery device (1100) as described in any one of claims 1-15, an energy storage device as described in claim 16, or an energy storage system as described in claim 17, wherein the battery device (1100) is used to store or provide electrical energy.
  19. A charging network includes a charging pile and an energy storage device as described in claim 16 or an energy storage system as described in claim 17, wherein the energy storage device is used to provide electrical energy to the charging pile.

Description

Battery devices, energy storage devices, energy storage systems, electrical devices and charging networks Technical Field This application relates to the field of battery device technology, and in particular to a battery device, energy storage device, energy storage system, power consumption device and charging network. Background Technology The distribution box is a key component in the power system. In battery devices, the distribution box can distribute the electrical energy in the individual battery modules to the various high-voltage systems of external electrical devices. During the operation of the battery unit, the power distribution box may malfunction, thus requiring maintenance. In related technologies, the power distribution box is built into the battery unit. Maintenance of the power distribution box requires disassembling the external casing of the battery unit and removing the power distribution box from the casing through cumbersome procedures. This results in a complicated disassembly process, poor ease of disassembly, and an adverse impact on maintenance efficiency. Summary of the Invention The purpose of this application is to provide a battery device, energy storage device, energy storage system, power consumption device, and charging network, aiming to solve the technical problems of cumbersome and inconvenient disassembly process of power distribution components in battery devices, which affects disassembly and assembly efficiency. Technical solutions The technical solution adopted in the embodiments of this application is: In a first aspect, this application provides a battery device, comprising: Battery cell assembly; The enclosure has a housing space and an installation space. The battery cell assembly is housed in the housing space, and the enclosure has an interface that connects to the installation space. The first guide is connected to the housing and located within the installation space, and the first guide is electrically connected to the battery cell assembly. The power distribution assembly includes a housing, an electronic system assembly, and a second conductor. The housing has a receiving cavity, the electronic system assembly is connected to the housing and housed in the receiving cavity, and the second conductor is electrically connected to the electronic system assembly. The housing is connected to a box and is inserted into an installation space via a plug-in interface, and the second conductor is electrically connected to a first conductor. The housing has an operating port. A locking assembly is connected between the housing and the enclosure, or the locking assembly is connected between the first guide and the second guide; the operating port extends through the locking assembly. In this embodiment, the locking assembly is connected between the housing and the enclosure or between the first and second guide members, thereby keeping the first and second guide members connected. The operating port extends to the location of the locking assembly. During maintenance, the operator's hand or handheld tool can directly contact the locking assembly through the operating port to remove and install the locking assembly. After the locking assembly is unlocked, the power distribution assembly is relatively free relative to the enclosure. The first and second guide members separate, and the power distribution assembly can be directly detached from the plug-in interface of the installation space without disassembling the enclosure. The removal and installation of the power distribution assembly and the enclosure are more convenient, which helps to improve maintenance efficiency. In one embodiment, the second guide is housed in the receiving cavity, the locking assembly is disposed in the receiving cavity, and the operating port extends into the receiving cavity and is disposed opposite to the locking assembly. In this embodiment, the locking assembly is configured inside the receiving cavity. The operating port only needs to extend into the receiving cavity and be positioned opposite the locking assembly. The operator's hand or tool can then pass through the operating port into the receiving cavity to contact the locking assembly, thereby enabling the installation and disassembly of the locking assembly. The overall structural design is simpler and more compact. In one embodiment, the power distribution assembly further includes a cover that is detachably connected to the housing and covers the operating port. In this embodiment, the cover is opened on the operating port, thereby sealing the accommodating cavity and protecting the electronic system components, some of the first guide, the second guide, and the locking assembly located in the accommodating cavity, reducing the probability of damage to the various components in the accommodating cavity by moisture, dust, foreign objects, etc. In one embodiment, the first conductor includes a second conductor piece electrically co