CN213184511U

CN213184511U - Modular forklift battery system

Info

Publication number: CN213184511U
Application number: CN202022174949.7U
Authority: CN
Inventors: 黄静雅; 王敏; 何俐鹏; 叶天云; 郭英; 乔建丽; 张璐阳
Original assignee: Hangzhou Vmhstar Technology Co ltd
Current assignee: Hangzhou Vmhstar Technology Co ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-05-11
Anticipated expiration: 2030-09-29

Abstract

The utility model discloses a modularization fork truck battery system, including instrument module and the group battery of constituteing by two at least lithium ion battery module, the power of each lithium ion battery module is connected the positive end and is parallelly connected to constitute external power and connect the positive end, and the power of each lithium ion battery module is connected the negative end and is parallelly connected to constitute external power and connect the negative end, and the positive end is connected to external power is connected to instrument module's first power supply end, and external power is connected to instrument module's second power supply end, and instrument module's data terminal is connected with each lithium ion battery module's communication mouth communication. The utility model has long service life, small volume and high energy; when a problem occurs in a battery core or a component in one module in the system, one module can be directly replaced without maintaining the whole system; the real-time data monitoring can be carried out on the forklift system.

Description

Modular forklift battery system

Technical Field

The utility model relates to a lithium cell technical field especially relates to a modularization fork truck battery system based on lithium cell.

Background

The power system of the existing forklift mainly has two forms of electric driving and oil driving. The electric forklift system mainly has two schemes, one scheme is to use a lead-acid battery as a power system energy source, and the other scheme is to use an integrally designed lithium ion power battery system as a power system energy source.

The lead-acid battery is used as a power system energy source, and the following problems mainly exist: the service life is short, and generally only 1-2 years of quality assurance and service life are achieved; low specific energy, large volume and low energy; the self-power consumption is serious, the charging time is long, and the charging cannot reach the rated capacity; recycling is difficult and lead acid batteries are not environmentally friendly.

The lithium ion power battery system with integrated design is used as a power system energy source, and the following problems mainly exist: the production process is complex, the integrated design steps are multiple, and errors are easy to occur; the product cost is high, the integrated design uses the breaking mode of the relay, and the components such as charging, discharging, fuses and the like are expensive; the maintenance cost is high, the maintenance is inconvenient, if one battery cell or other parts in the integrally designed battery system have problems, the whole system needs to be disassembled, or the whole battery system needs to be replaced; the man-machine interaction data is less, the reported data is usually only voltage, current and SOC simple data, and the data can only be used by an operator and cannot be subjected to background management and control.

SUMMERY OF THE UTILITY MODEL

The utility model provides a modularization fork truck battery system is in order to solve above-mentioned technical problem.

In order to achieve the above purpose, the utility model discloses the technical scheme who adopts is:

the utility model provides a modularization fork truck battery system, includes instrument module and the group battery that comprises two at least lithium ion battery module, the power of each lithium ion battery module is connected the positive end and is parallelly connected to constitute external power and connects the positive end, and the power of each lithium ion battery module is connected the negative end and is parallelly connected to constitute external power and connect the negative end, the first power supply end of instrument module is connected external power and is connected the positive end, and the second power supply end of instrument module is connected external power and is connected the negative end, and the data terminal of instrument module is connected with the communication mouth communication of each lithium ion battery module.

Preferably, a battery management system BMS is mounted in each of the individual lithium ion battery modules.

Preferably, the discharge voltage of the single lithium ion battery module is 24V, and the capacity of the single lithium ion battery module is 100 AH.

Preferably, the battery cell adopted by the single lithium ion battery module is a lithium iron phosphate battery cell.

Preferably, the data end of the instrument module is in communication connection with the communication port of each lithium ion battery module through a CAN bus.

Preferably, the meter module comprises a main control module and a display module, and the main control module receives data of each lithium ion battery module obtained by the data terminal and transmits the data to the display module.

Preferably, the meter module further comprises a positioning module, and the positioning module is electrically connected with the main control module.

Preferably, the meter module further comprises an alarm module, and the alarm module is electrically connected with the main control module.

Preferably, the meter module further comprises a remote communication module, and the remote communication module is electrically connected with the main control module.

Compared with the prior art, the utility model has long service life, small volume and high energy; when a problem occurs in a battery core or a component in one module in the system, one module can be directly replaced without maintaining the whole system; the real-time data monitoring can be carried out on the forklift system.

Drawings

Fig. 1 is a block diagram of a modular forklift battery system according to the present invention;

fig. 2 is the utility model discloses modular fork truck battery system's a circuit connection schematic diagram.

In the figure, 1-battery pack, 2-instrument module, 21-main control module, 22-display module, 23-positioning module, 24-alarm module and 25-remote communication module.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not intended to limit the present invention, and structural, methodical, or functional changes that may be made by one of ordinary skill in the art based on these embodiments are all included in the scope of the present invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

As shown in figure 1, a modularization fork truck battery system, including instrument module 2 and the group battery 1 of constituteing by two lithium ion battery modules, the power of each lithium ion battery module is connected the positive end and is parallelly connected to constitute external power and connect the positive end, and the power of each lithium ion battery module is connected the negative end and is parallelly connected to constitute external power and connect the negative end, the external power connection positive end is connected to instrument module 2's first power supply end, and external power is connected the negative end to instrument module 2's second power supply end, and instrument module 2's data end and each lithium ion battery module's communication mouth communication are connected.

Here, the power is connected to the positive terminal, i.e. the positive electrode during charging and discharging, and the power is connected to the negative terminal, i.e. the negative electrode during charging and discharging; the positive end and the negative end of the power connection of each lithium ion battery module can be conveniently connected by using a cold pressing terminal locking screw of M6. The number of the lithium ion battery modules can be selected and adjusted according to application requirements, and can be two or more than two.

The utility model discloses a modularization fork truck battery system comprises two or a plurality of lithium ion battery module, during the equipment with lithium ion battery module parallelly connected can, electric core or part in a certain lithium ion battery module in the system go wrong, can directly replace one of them lithium ion battery module can, need not maintain entire system.

Here, a battery management system BMS is mounted inside each lithium ion battery module to realize data monitoring, battery equalization, system protection, and the like, so that low power consumption processing can be realized, and power consumption of the system can be reduced; the discharge voltage of a single lithium ion battery module can be 24V, and the capacity can be 100 AH.

The battery cell adopted by the single lithium ion battery module is a lithium iron phosphate battery cell. Compared with a lead-acid battery, the lithium iron phosphate battery has a small volume and high energy.

In order to ensure the convenience and stability of data transmission in the system, the data end of the instrument module 2 and the communication port of each lithium ion battery module CAN be in communication connection through a CAN bus. As shown in fig. 2, when there are two lithium ion battery modules, the input communication port of the first lithium ion battery module may be connected to the data terminal of the instrument module 2, and the input communication port of the second lithium ion battery module may be connected to the output communication port of the first lithium ion battery module. Of course, the CAN bus CAN be replaced by other communication buses.

The meter module 2 may include a main control module 21 and a display module 22, and the main control module 21 receives data of each lithium ion battery module obtained by the data terminal and transmits the data to the display module 22. The display module 22 may be an LCD display screen.

Further, the instrument module 2 may further include a positioning module 23, an alarm module 24, a remote communication module 25, and the like, where the positioning module 23, the alarm module 24, and the remote communication module 25 are respectively electrically connected to the main control module to systematically implement management and control of human-computer interaction data.

The positioning module 23 may be a GPS system, and may perform real-time positioning on the forklift system and send the position to the monitoring personnel.

The alarm module 24 may adopt a buzzer, an optical signal or a combination of the buzzer and the optical signal, etc. to remind the user of charging with less electric quantity.

The remote communication module 25 can adopt communication modes such as GPRS, 3G, 4G, 5G and the like to upload all data of the battery to a background, so that personnel can monitor the battery in one step without using after-sales personnel to monitor the data on site.

On this basis, the instrument module can set up long-range forbidden function of charging. When the user does not pay for a long time, the charging and discharging functions of the battery system can be closed in a background mode, so that the purpose of incapability of use is achieved.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. The utility model provides a modularization fork truck battery system, its characterized in that includes instrument module and the group battery of constituteing by two at least lithium ion battery module, each the power of lithium ion battery module is connected the positive end and is parallelly connected to constitute external power and connects the positive end, and the power of each lithium ion battery module is connected the negative end and is parallelly connected to constitute external power and connect the negative end, the first power supply end of instrument module is connected external power and is connected the positive end, and the second power supply end of instrument module is connected external power and is connected the negative end, and the data terminal of instrument module is connected with the communication mouth communication of each lithium ion battery module.

2. The modular forklift battery system of claim 1, wherein each of said lithium ion battery modules carries a Battery Management System (BMS) therein.

3. The modular forklift battery system of claim 1, wherein the individual li-ion battery modules are discharged at 24V and have a capacity of 100 AH.

4. The modular forklift battery system of claim 1, wherein the cells employed by individual lithium ion battery modules are lithium iron phosphate cells.

5. The modular forklift battery system according to claim 1, wherein the data terminal of the meter module is in communication connection with the communication port of each lithium ion battery module through a CAN bus.

6. The modular forklift battery system according to any one of claims 1 to 5, wherein the meter module comprises a main control module and a display module, and the main control module receives data of each lithium ion battery module obtained by the data terminal and transmits the data to the display module.

7. The modular forklift battery system of claim 6, wherein the meter module further comprises a positioning module, the positioning module being electrically connected to the master control module.

8. The modular forklift battery system of claim 6, wherein the meter module further comprises an alarm module, the alarm module being electrically connected to the master control module.

9. The modular forklift battery system of claim 6, wherein said instrumentation module further comprises a remote communication module, said remote communication module being electrically connected to a master control module.