CN223124171U - Car as a house battery - Google Patents
Car as a house batteryInfo
- Publication number
- CN223124171U CN223124171U CN202421428219.7U CN202421428219U CN223124171U CN 223124171 U CN223124171 U CN 223124171U CN 202421428219 U CN202421428219 U CN 202421428219U CN 223124171 U CN223124171 U CN 223124171U
- Authority
- CN
- China
- Prior art keywords
- battery
- protection module
- secondary protection
- battery pack
- charging interface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Battery Mounting, Suspending (AREA)
Abstract
本实用新型涉及电池技术领域，特别是一种房车电池；包括外壳、充电接口、电池组、BMS板以及二次保护模块，充电接口的正极与二次保护模块的输入端连接，二次保护模块的输出端与电池组的正极连接，电池组的负极与BMS板的输入端连接，BMS板的输出端与充电接口的负极连接；电池组、BMS板以及二次保护模块均设置在外壳内，充电接口裸露在外壳外部；通过在房车电池系统中设置二次保护模块，并使得充电接口的输出端与二次保护模块的输入端连接，以及二次保护模块的输出端与电池组的正极连接，能够在电池管理系统的过充保护、过放保护或温度监控等保护功能失效的情况下，切断系统中的充电回路，从而防止电池因过充、过流或温度过高而损坏，实现二次保护。
The utility model relates to the technical field of batteries, in particular to a motorhome battery; it comprises a shell, a charging interface, a battery pack, a BMS board and a secondary protection module, the positive pole of the charging interface is connected to the input end of the secondary protection module, the output end of the secondary protection module is connected to the positive pole of the battery pack, the negative pole of the battery pack is connected to the input end of the BMS board, and the output end of the BMS board is connected to the negative pole of the charging interface; the battery pack, the BMS board and the secondary protection module are all arranged in the shell, and the charging interface is exposed outside the shell; by arranging the secondary protection module in the motorhome battery system, and making the output end of the charging interface connected to the input end of the secondary protection module, and the output end of the secondary protection module connected to the positive pole of the battery pack, it is possible to cut off the charging circuit in the system when the protection functions of the battery management system such as overcharge protection, over-discharge protection or temperature monitoring fail, thereby preventing the battery from being damaged due to overcharge, overcurrent or excessive temperature, thereby achieving secondary protection.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a motor home battery.
Background
The car as a house battery is used for providing power supply in the car as a house, a deep circulation battery is generally adopted and used for long-time frequent discharging and charging circulation, some modern car as a house battery systems are provided with a battery management system for detecting and managing the charging and discharging processes of the battery so as to ensure the safety performance of the battery, the protection system of the battery by the existing car as a house is too dependent on the battery management system, and in abnormal situations, such as when a charging MOS tube or a discharging MOS tube is damaged, the battery management system can send a control instruction to the charging and discharging MOS tube, but the charging and discharging MOS tube cannot be cut off because the charging and discharging MOS tube is already directly connected, and in this case, the charging protection of the battery management system can fail, and if the battery continues to charge and discharge, a great potential safety hazard exists.
Therefore, it is important for those skilled in the art to design a car as a house battery with a high safety factor.
Disclosure of utility model
The technical problem to be solved by the embodiment of the utility model is to provide the motor home battery with high safety coefficient, so as to solve the problem that the motor home battery has larger potential safety hazard when the charge protection of the battery management system fails in the prior art.
The utility model discloses a motor home battery which is characterized by comprising a shell, a charging interface, a battery pack, a BMS board and a secondary protection module, wherein the positive electrode of the charging interface is connected with the input end of the secondary protection module, the output end of the secondary protection module is connected with the positive electrode of the battery pack, the negative electrode of the battery pack is connected with the input end of the BMS board, and the output end of the BMS board is connected with the negative electrode of the charging interface, and the battery pack, the BMS board and the secondary protection module are all arranged in the shell, and the charging interface is exposed outside the shell.
Optionally, the output end of the secondary protection module is connected with the positive electrode of the battery pack, and the negative electrode of the battery pack is connected with the input end of the BMS board through soft copper bars.
Optionally, the anode of the charging interface is connected with the input end of the secondary protection module, and the cathode of the charging interface is connected with the input end of the BMS board through copper bars.
Optionally, the secondary protection module includes protective housing and intelligent fuse, intelligent fuse sets up in the protective housing, just intelligent fuse's one end with the positive pole of interface of charging is connected, intelligent fuse's the other end with the positive pole of group battery is connected.
Optionally, heat dissipation structures are disposed on both sides of the BMS board.
Optionally, the BMS board is disposed flush with the secondary protection module.
Optionally, the group battery includes battery compartment and a plurality of electric core, and a plurality of the electric core all sets up in the battery compartment, be provided with on the battery compartment and be used for fixing the layering of electric core.
Optionally, an insulating plate is arranged on the pressing strip.
Optionally, the device further comprises a communication board, wherein the communication board is electrically connected with the BMS board and is arranged flush with the BMS board.
Optionally, the communication board is provided with a plurality of communication interfaces and a switch.
Compared with the prior art, the electric car as a house battery has the beneficial effects that the secondary protection module is arranged in the electric car as a house battery system, the output end of the charging interface is connected with the input end of the secondary protection module, and the output end of the secondary protection module is connected with the positive electrode of the battery pack, so that the charging loop in the system can be cut off to stop the external power supply from charging the battery pack under the condition that the protection functions of the battery management system such as overcharge protection, overdischarge protection or temperature monitoring are invalid, and the battery is prevented from being damaged due to overcharge, overcurrent or overhigh temperature, and the secondary protection of the battery pack is realized.
Drawings
The technical scheme of the utility model will be further described in detail below with reference to the accompanying drawings and examples, wherein:
fig. 1 is a schematic perspective view of a car as a house battery according to an embodiment of the present utility model;
fig. 2 is a schematic perspective view of a motor home battery according to an embodiment of the present utility model;
FIG. 3 is a schematic perspective view of a housing provided in an embodiment of the present utility model;
FIG. 4 is a partial schematic view of FIG. 2 provided by an embodiment of the present utility model;
fig. 5 is a left side view of a car as a house battery provided by an embodiment of the present utility model.
The reference numerals in the drawings are as follows:
1. The battery pack comprises a shell, a charging interface, a battery pack, a BMS board, a secondary protection module, a soft copper bar, a communication board and a communication board, wherein the charging interface, the battery pack, the BMS board, the secondary protection module, the soft copper bar, the copper bar and the communication board are arranged in sequence;
11. 12 parts of base, 12 parts of upper cover, 121 parts of avoiding hole, 21 parts of positive electrode of charging interface, 22 parts of negative electrode of charging interface, 31 parts of positive electrode of battery pack, 32 parts of negative electrode of battery pack, 33 parts of pressing bar, 34 parts of insulating plate.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. Preferred embodiments of the present utility model will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 5, the present utility model provides a specific embodiment of a car as a house battery.
Referring to fig. 1 and 2, the motor home battery comprises a shell 1, a charging interface 2, a battery pack 3, a BMS board 4 and a secondary protection module 5, wherein the positive electrode of the charging interface 2 is connected with the input end of the secondary protection module 5, the output end of the secondary protection module 5 is connected with the positive electrode of the battery pack 3, the negative electrode of the battery pack 3 is connected with the input end of the BMS board 4, and the output end of the BMS board 4 is connected with the negative electrode of the charging interface 2, the battery pack 3, the BMS board 4 and the secondary protection module 5 are arranged in the shell 1, and the charging interface 2 is exposed outside the shell 1.
Specifically, referring to fig. 2, the battery pack 3 is composed of a plurality of battery cells for storing and releasing energy and providing required power support for a motor home, the motor home battery adopts a deep-cycle battery to meet the requirement of frequent charge and discharge, the BMS board 4 is a circuit board with a battery management system for monitoring, managing and protecting the battery and ensuring the battery to run in a safe range, and particularly, intelligent management of the battery can be realized by monitoring parameters such as voltage, temperature and current of the battery, including overcharge protection, overdischarge protection, temperature monitoring and the like, and the existence of the BMS board 4 can improve the safety, stability and service life of the battery.
Further, referring to fig. 2, the secondary protection module 5 is configured to protect the battery pack 3 in case of failure of protection functions such as overcharge protection, overdischarge protection, or temperature monitoring of the battery management system, for example, when the charge MOS tube or the discharge MOS tube in the battery management system is damaged, the battery management system can send a control command to the charge MOS tube or the discharge MOS tube, but since the charge MOS tube or the discharge MOS tube itself is already through and cannot be turned off, the charge protection of the battery management system will fail, and the secondary protection module 5 cuts off the charge circuit in this state to stop charging the battery pack 3, thereby performing secondary protection on the battery pack 3.
Further, referring to fig. 3, the housing 1 includes a base 11 and an upper cover 12, a cavity is provided in the base 11, the battery pack 3 is disposed in the cavity, the bottom of the battery pack 3 is fixed with the bottom of the cavity, the BMS board 4 and the secondary protection module are disposed above the battery pack 3 and are located in the cavity together, the base 11 is provided with a mounting plate outwards corresponding to one end of the cavity opening, the upper cover 12 is provided with side plates around, the upper cover 12 covers the base 11, the outer wall of the mounting plate abuts against the inner wall of the side plate of the upper cover 12 and is fixed by screws or other fasteners, so that the battery pack 3, the BMS board 4 and the secondary protection module are sealed in the housing 1, and protection of the battery pack 3, the BMS board 4 and the secondary protection module is achieved, wherein the charging interface 2 is disposed above the battery pack 3, and an avoidance hole 121 is disposed on the upper cover 12 corresponding to the charging interface 2, and when the upper cover 12 covers the base 11, the exposed charging interface 2 can penetrate the outer surface of the upper cover 12 to conveniently connect an external power supply.
In this embodiment, by setting the secondary protection module in the car as a house battery system and enabling the output end of the charging interface to be connected with the input end of the secondary protection module and the output end of the secondary protection module to be connected with the positive electrode of the battery pack, the charging loop in the system can be cut off under the condition that the protection functions of the battery management system such as overcharge protection, overdischarge protection or temperature monitoring are invalid, so as to stop the external power supply from charging the battery pack, thereby preventing the battery from being damaged due to overcharge, overcurrent or overhigh temperature, and realizing the secondary protection of the battery pack.
In one embodiment, referring to fig. 4, the output terminal of the secondary protection module 5 is connected to the positive electrode 31 of the battery pack 3, and the negative electrode 32 of the battery pack 3 is connected to the input terminal of the BMS board 4 through the soft copper bar 6.
Specifically, the soft copper bar is a soft copper flat plate or strip material with good electrical conductivity, is usually made of pure copper or copper containing a small amount of other alloy elements, and has good softness, electrical conductivity, thermal conductivity and plasticity.
In this implementation, because the car as a house is in vibration state for a long time in the use, can unload the produced stress when the car as a house shakes through soft copper bar carry out soft connection to guarantee that the welding aluminium row of battery tab can not be shaken by the stress and open, guarantee car as a house battery system's shock resistance, thereby improve car as a house battery system's stability.
In one embodiment, referring to fig. 2 and 4, the positive electrode 21 of the charging interface 2 and the input terminal of the secondary protection module 5, and the negative electrode 22 of the charging interface 2 and the input terminal of the BMS board 4 are all connected through the copper bar 7.
Specifically, referring to fig. 2 and 4, between the positive electrode 21 of the charging interface 2 and the input end of the secondary protection module 5, and between the negative electrode 22 of the charging interface 2 and the input end of the BMS board 4, both can be connected through the common copper bar and the soft copper bar 6, since the stress of the motor home on the charging interface 2 end is smaller than the stress of the motor home on the battery pack 3 end during vibration, the charging interface 2 end can be connected through the common copper bar for saving cost.
In one embodiment, the secondary protection module 5 includes a protection shell and an intelligent fuse, the intelligent fuse is disposed in the protection shell, one end of the intelligent fuse is connected with the positive electrode of the charging interface 2, and the other end of the intelligent fuse is connected with the positive electrode of the battery pack 3.
Specifically, the protective housing is used for providing the physical barrier for intelligent fuse on the one hand to protect intelligent fuse not influenced by physical factors such as external environment's mechanical damage, dust and steam, thereby improve intelligent fuse's life and stability, and the protective housing is used for safety protection on the other hand, in order to prevent personnel from touching the inside electrified part of secondary protection module 5, reduce the risk of unexpected electric shock.
In one embodiment, the BMS board 4 is provided with a heat dissipation structure on both sides.
Specifically, the BMS board 4 is provided with a heat dissipation structure on a side surface of the BMS board 4 near the battery pack 3 and a side surface of the BMS board 4 near the upper cover 12, and the heat dissipation structure can help to effectively conduct heat generated by the electronic components to the heat dissipation structure and dissipate the heat to the surrounding environment through the heat dissipation structure, thereby helping to avoid damage of the electronic components due to overheating, and maintaining stability and reliability of the circuit board.
In one embodiment, referring to fig. 1 and 2, the bms board 4 is disposed flush with the secondary protection module 5.
Specifically, referring to fig. 1 and 2, the secondary protection module 5 is disposed at one side of the BMS board 4 and on the same horizontal plane as the BMS board 4, and this arrangement can make the car as a house battery structure more compact, and ensure the overall height of the car as a house battery to reduce the space occupied by the car as a house battery.
In one embodiment, referring to fig. 2 and 5, the battery pack 3 includes a battery compartment and a plurality of battery cells, each of the plurality of battery cells being disposed in the battery compartment, and a bead 33 for fixing the battery cells is disposed on the battery compartment.
Specifically, referring to fig. 2 and 5, the battery compartment includes a plurality of holding tanks for holding the battery cells, the plurality of holding tanks are arranged side by side, the plurality of battery cells are respectively arranged in the plurality of holding tanks, and the pressing bar 33 is arranged on the battery compartment and spans the plurality of holding tanks side by side, so as to fully press and fix the battery cells in the holding tanks, so as to ensure that the battery cells of the motor home are not affected by vibration in the driving process, and improve the stability and safety of the motor home battery.
In one embodiment, referring to fig. 5, an insulating plate 34 is provided on the molding 33, and the insulating plate 34 is used for electrical insulation to improve electrical safety.
In one embodiment, referring to fig. 1 and 2, the car as a house battery further includes a communication board 8, the communication board 8 being electrically connected with the BMS board 4 and being disposed flush with the BMS board 4.
Specifically, referring to fig. 1 and 2, the communication board 8 is provided with a plurality of communication interfaces and switches, and the plurality of communication interfaces can enable the battery system of the caravan to communicate with external equipment or a monitoring system, so as to realize remote monitoring and management, thereby facilitating a user to remotely monitor the battery state, perform fault diagnosis and real-time control, and improving the reliability and safety of the system.
It should be understood that the foregoing embodiments are merely illustrative of the technical solutions of the present utility model and not limiting thereof, and that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, and all such modifications and substitutions are intended to fall within the scope of the appended claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421428219.7U CN223124171U (en) | 2024-06-20 | 2024-06-20 | Car as a house battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421428219.7U CN223124171U (en) | 2024-06-20 | 2024-06-20 | Car as a house battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223124171U true CN223124171U (en) | 2025-07-18 |
Family
ID=96374182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421428219.7U Active CN223124171U (en) | 2024-06-20 | 2024-06-20 | Car as a house battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223124171U (en) |
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2024
- 2024-06-20 CN CN202421428219.7U patent/CN223124171U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |