Battery management system based on near field communication

Abstract

The utility model provides a battery management system based on near field communication. The battery management system comprises a battery pack; the circuit board is arranged on one side of the inner side surface of the battery pack; the plurality of battery cells are arranged on the inner side surface of the battery pack; a plurality of chips, wherein the plurality of chips are arranged at the top of the battery cell; and the plurality of antennas are arranged at the top of the battery cell. According to the battery management system based on near field communication provided by the utility model, the near field communication technology is adopted to replace a traditional wired harness connection mode, so that the number of required components is greatly reduced, and compared with the traditional wired BMS design, the used components are reduced by about 10 times, and the complexity and the cost of the system are reduced; and a large number of wire harnesses are removed, so that the space in the battery pack is effectively saved, the structure of the battery pack is more compact, and the battery pack is convenient to install and arrange.

Description

TECHNICAL FIELD

[0001] The utility model relates to a battery management system field especially relates to a battery management system based on near field communication. BACKGROUND

[0002] The container battery pack is a device for storing and providing electric energy, can store a large amount of electric energy, can satisfy the power demand of a variety of high-power equipment or long-time running equipment, is the effective solution of large-scale energy storage and supply.

[0003] In the existing container battery pack, because its electric quantity is big and the number of battery cell is numerous, the traditional battery management system adopts ordinary wiring harness design, is equipped with at least 3 wiring harnesses on each battery cell, including 1 voltage acquisition wiring harness, 1 temperature sensor wiring harness and 1 equalization wiring harness, calculates more than 100 battery cells possibly contained in each battery pack, will lead to the huge number of wiring harnesses, there are many problems, first, a large number of wiring harnesses occupy a larger space, make the layout and installation of battery pack become difficult, and increase the overall volume, second, numerous wiring harnesses are prone to failure, affect the reliability of battery management system and the normal operation of battery pack, at the same time, the traditional wired connection mode is sensitive to vibration, is prone to loose or damaged in the use process, further reduces the stability and safety of the system.

[0004] Therefore, it is necessary to provide a battery management system based on near field communication to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] The utility model provides a battery management system based on near field communication, solves the problem of occupying larger space, prone to failure, reduces the safety and stability.

[0006] In order to solve the above technical problems, the utility model provides a battery management system based on near field communication, including:

[0007] Battery pack;

[0008] Circuit board, the circuit board is arranged at one side of the inner side of the battery pack;

[0009] Multiple battery cells, multiple battery cells are arranged on the inner side of the battery pack;

[0010] Multiple chips, multiple chips are arranged on the top of the battery cell;

[0011] Multiple antennas, multiple antennas are arranged on the top of the battery cell.

[0012] Preferably, the upper surface of the circuit board is provided with near field communication receiving module and processing module.

[0013] Preferably, the chip is provided with a voltage acquisition module, a temperature acquisition module, an equalization module and an NFC communication module on the top.

[0014] Preferably, the NFC communication module and the antenna are wirelessly connected, and the antenna and the approach communication receiving module are wirelessly connected.

[0015] Preferably, the battery management system based on near field communication further comprises a mounting frame provided on the top of the electric core, a first rubber pad fixedly installed on the bottom of the inner side of the mounting frame, clamping grooves formed on both sides of the inner side of the mounting frame, the antenna provided on the top of the first rubber pad, a second rubber pad provided on the top of the antenna, a pressing frame provided on the top of the second rubber pad, clamping blocks fixedly installed on both sides of the pressing frame, and the clamping blocks clamped on the inner side of the clamping grooves.

[0016] Preferably, electrode grooves are formed on both sides of the mounting frame.

[0017] Preferably, an adhesion layer is adhered to the bottom of the mounting frame, and the adhesion layer is adhered to the top of the electric core.

[0018] Compared with the related art, the battery management system based on near field communication has the following beneficial effects:

[0019] The battery management system based on near field communication provided by the utility model adopts near field communication technology, replaces the traditional wired harness connection mode, greatly reduces the required component quantity, reduces the used components by about 10 times compared with the traditional wired BMS design, reduces the complexity and cost of the system, effectively saves the space in the battery pack due to the removal of a large number of harnesses, makes the structure of the battery pack more compact, is convenient for installation and layout, avoids the fault risk caused by a large number of harnesses, eliminates the problem that the harness connection is sensitive to vibration, improves the stability and reliability of the system, and the near field communication has the characteristics of stable signal and strong anti-interference capability, guarantees the accuracy and timeliness of the electric core information transmission, and helps to improve the performance of the battery management system and the use safety of the battery pack. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 FIG. 1 is a structural schematic view of a first embodiment of the battery management system based on near field communication provided by the utility model;

[0021] Figure 2 FIG. 2 is an enlarged schematic view of part A shown in FIG. 1; Figure 1

[0022] Figure 3 FIG. 3 is an enlarged schematic view of part B shown in FIG. 1; and Figure 2 ​The chip structure schematic diagram shown in the figure is as follows:

[0023] Figure 4 The chip structure schematic diagram shown in the figure is as follows: Figure 2 The circuit board structure schematic diagram shown in the figure is as follows:

[0024] Figure 5 The second embodiment structure schematic diagram of the battery management system based on near field communication provided by the utility model is as follows:

[0025] Figure 6 The chip structure schematic diagram shown in the figure is as follows: Figure 5 The B part enlarged schematic diagram shown in the figure is as follows.

[0026] The chip structure schematic diagram shown in the figure is as follows: DETAILED DESCRIPTION

[0027] The utility model will be further described below in combination with the drawings and embodiments.

[0028] First embodiment

[0029] Please combine with the drawings Figure 1 , Figure 2 , Figure 3 , Figure 4 Among them, Figure 1 The first embodiment structure schematic diagram of the battery management system based on near field communication provided by the utility model is as follows: Figure 2 The A part enlarged schematic diagram shown in the figure is as follows: Figure 1 The chip structure schematic diagram shown in the figure is as follows: Figure 3 The chip structure schematic diagram shown in the figure is as follows: Figure 2 The circuit board structure schematic diagram shown in the figure is as follows: Figure 4 The circuit board structure schematic diagram shown in the figure is as follows: Figure 2 A kind of battery management system based on near field communication, including: battery pack 1;

[0030] Circuit board 2, the circuit board 2 is arranged in the inside of the battery pack 1 one side surface side;

[0031] Multiple electric core 3, multiple electric core 3 are all arranged in the inside of the battery pack 1 side surface;

[0032] Multiple chip 4, multiple chip 4 are all arranged in the top of the electric core 3;

[0033] Multiple antenna 5, multiple antenna 5 are all arranged in the top of the electric core 3.

[0034] The upper surface of the circuit board 2 is provided with an approach communication receiving module 21 and a processing module 22.

[0035] The upper surface of the chip 4 is provided with a voltage acquisition module 41, a temperature acquisition module 42, an equalization module 43 and an NFC communication module 44.

[0036] The NFC communication module 44 is wirelessly connected with the antenna 5, and the antenna 5 is wirelessly connected with the approach communication receiving module 21.

[0037] The approach communication receiving module 21 on the circuit board 2 should have corresponding near field communication receiving function, can accurately receive signals from each chip 4 of the battery cell 3, and is equipped with a processing module 22 for processing and analyzing the received data, and according to the processing result, the battery pack is subjected to corresponding management operation, such as issuing an alarm, controlling equalization to start, communicating with an upper computer and the like.

[0038] The antenna 5 can be not only a small patch antenna, but also a filament antenna, and the antenna is directly connected with the circuit board 2 for communication and power supply from the circuit board 2.

[0039] The chip 4 is connected with the antenna 5 through the NFC communication module 44, and is used for sending the acquired battery cell 3 information.

[0040] The voltage acquisition module 41, the temperature acquisition module 42 and the equalization module 43 are respectively used for acquiring voltage and temperature information of the battery cell and performing equalization operation.

[0041] The working principle of the battery management system based on near field communication provided by the utility model is as follows:

[0042] The chip 4 above the battery cell 3 is responsible for acquiring voltage, temperature and other information of the battery cell 3 and performing equalization operation, the chip 4 sends the acquired data through the antenna 5 connected therewith through near field communication technology, the approach communication receiving module 21 on the circuit board 2 of the battery management system receives data signals from each chip 4 of the battery cell 3, then processes and analyzes these data, thereby realizing overall management of the battery pack, including battery state monitoring, charge and discharge control, overcharge and overdischarge protection and the like.

[0043] Compared with the related art, the battery management system based on near field communication has the following beneficial effects:

[0044] By adopting the near field communication technology, the traditional wired harness connection mode is replaced, the required component quantity is greatly reduced, compared with the traditional wired BMS design, the used components are reduced by about 10 times, the complexity and cost of the system are reduced, and because a large number of harnesses are removed, the space in the battery pack is effectively saved, so that the structure of the battery pack is more compact, convenient to install and layout, and the failure risk caused by a large number of harnesses is avoided, and the vibration sensitivity of the harness connection is also eliminated, the stability and reliability of the system are improved, and the near field communication has the characteristics of stable signal and strong anti-interference ability, which guarantees the accuracy and timeliness of the cell information transmission, and helps to improve the performance of the battery management system and the use safety of the battery pack.

[0045] Second embodiment

[0046] Please refer to Figure 5 and Figure 6 , based on the first embodiment of the battery management system provided by the battery management system based on the near field communication, the second embodiment of the present application provides another kind of battery management system based on near field communication. The second embodiment is only the preferred mode of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0047] Specifically, the battery management system based on the near field communication provided by the second embodiment of the present application is different from the battery management system based on the near field communication, further comprising a mounting frame 6, the mounting frame 6 is arranged on the top of the cell 3, the bottom of the inner side of the mounting frame 6 is fixedly installed with a first rubber pad 63, the two sides of the inner side of the mounting frame 6 are provided with clamping grooves 62, the antenna 5 is arranged on the top of the first rubber pad 63, the top of the antenna 5 is provided with a second rubber pad 81, the top of the second rubber pad 81 is provided with a pressing frame 8, the two sides of the pressing frame 8 are fixedly installed with clamping blocks 82, and the clamping blocks 82 are clamped on the inner side of the clamping groove 62.

[0048] The two sides of the mounting frame 6 are provided with electrode grooves 61.

[0049] The bottom of the mounting frame 6 is adhered with an adhering layer 7, and the bottom of the adhering layer 7 is adhered to the top of the cell 3.

[0050] The working principle of the battery management system based on the near field communication provided by the utility model is as follows:

[0051] In the process of using, when the user needs to install the antenna 5, the user first puts the antenna 5 into the inner side of the mounting frame 6, and makes the bottom of the antenna 5 abut against the top of the first rubber pad 63, then places the pressing frame 8 on the top of the antenna 5, so that the second rubber pad 81 is pressed on the top of the antenna 5, and the clamping block 82 is clamped into the inner side of the clamping groove 62, thereby playing a role of limiting the antenna 5, then the mounting frame 6 is limited on the top of the battery cell 3 through the adhesive layer 7, and then the electrode for supplying power to the antenna 5 is moved out from the inner side of the electrode groove 61.

[0052] Compared with the related art, the battery management system based on near field communication has the following beneficial effects:

[0053] Through the cooperation of the mounting frame 6, the clamping groove 62, the first rubber pad 63, the adhesive layer 7, the pressing frame 8, the second rubber pad 81 and the clamping block 82, the antenna 5 can be limited and installed on the inner side of the mounting frame 6 during use, thereby playing a role of protecting the antenna 5.

[0054] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation according to the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A battery management system based on near field communication, characterized in that, Include: Battery package; Circuit board, the circuit board is arranged in one side of the inner side of the battery package; A plurality of battery cells, a plurality of battery cells are arranged on the inner side of the battery package; A plurality of chips, a plurality of chips are arranged on the top of the battery cell; A plurality of antennas, a plurality of antennas are arranged on the top of the battery cell.

2. The battery management system based on near field communication according to claim 1, characterized in that, The upper surface of the circuit board is provided with an approach communication receiving module and a processing module.

3. The battery management system based on near field communication according to claim 2, characterized in that, The upper surface of the chip is provided with a voltage acquisition module, a temperature acquisition module, an equalization module and an NFC communication module.

4. The battery management system based on near field communication according to claim 3, characterized in that, The NFC communication module and the antenna are wirelessly connected, and the antenna and the approach communication receiving module are wirelessly connected.

5. The battery management system based on near field communication according to claim 1, wherein, It also includes a mounting frame, the mounting frame is arranged on the top of the battery cell, the bottom of the inner side of the mounting frame is fixedly installed with the first rubber pad, the two sides of the inner side of the mounting frame are provided with clamping grooves, the antenna is arranged on the top of the first rubber pad, the top of the antenna is provided with the second rubber pad, the top of the second rubber pad is provided with the pressing frame, the two sides of the pressing frame are fixedly installed with the clamping block, and the clamping block is clamped to the inner side of the clamping groove.

6. The battery management system based on near field communication according to claim 5, characterized in that, The two sides of the mounting frame are provided with electrode grooves.

7. The battery management system based on near field communication according to claim 6, characterized in that, The bottom of the mounting frame is adhered with an adhesive layer, and the bottom of the adhesive layer is adhered to the top of the battery cell.

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