A temperature test device for energy storage battery system

Abstract

The utility model discloses a temperature test device for an energy storage battery system, which belongs to the field of energy storage battery detection. It includes a temperature measuring box, a chassis tray, a multi-channel thermocouple, a multi-channel temperature collector, a test computer host and a WIFI router. The chassis tray is located inside the temperature measuring box, and the thermocouples can be attached to the key temperature measuring points of the energy storage battery system respectively; the multi-channel temperature collector is located inside the temperature measuring box, and is electrically connected to the thermocouples through connecting wires; the multi-channel temperature collector is equipped with a WIFI antenna; the test computer host is arranged outside the temperature measuring box, and is equipped with a matching WIFI router, which is wirelessly connected to the WIFI antenna. The temperature testing device of the utility model has the characteristics of high temperature measurement accuracy, reduced temperature measurement line loss, simple wiring, simple operation and high automated testing efficiency, and meets the standard requirements for temperature testing of energy storage battery systems.

Description

Technical Field

[0001] The utility model belongs to the field of energy storage battery detection, in particular to a temperature testing device for an energy storage battery system. Background Art

[0002] Energy storage devices include dozens or even hundreds of battery cells, and differences often exist between each battery cell due to factors such as production batches. The differences often lead to attenuation of performance indicators such as internal resistance, temperature rise, capacity, voltage and life of the battery cluster, thereby affecting the performance of the entire energy storage battery unit. Therefore, it is necessary to conduct performance evaluation, safety verification and functional testing of the energy storage device to ensure that it can reliably, efficiently and safely store and release electrical energy in actual applications. Among them, the evaluation of thermal stability and thermal management is an important part of the energy storage battery system test to ensure that the energy storage device does not experience dangerous thermal runaway under abnormal conditions.

[0003] See attached Figure 1 The traditional energy storage battery system test is to place the temperature measuring instrument outside the temperature measuring box. The temperature measurement and collection thermocouples arranged in the energy storage battery system need to be led to the interface converter outside the temperature measuring box through a very long thermocouple line, and then connected to the temperature measuring instrument through the interface converter. At the same time, the wiring of the thermocouple lines in the energy storage system inside the temperature measuring box is cumbersome and messy. As the number of temperature measurement paths increases, it becomes more and more messy. The existing energy storage battery system test has the problems of long thermocouple lines for laying and connecting, high cost, high line loss and high line loss rate, interface conversion affecting temperature measurement accuracy, expensive temperature measuring instruments, cumbersome wiring, inconvenient transportation, low degree of intelligent automation, and low testing efficiency. Utility Model Content

[0004] In order to overcome the above technical defects, the utility model provides a temperature testing device for an energy storage battery system to solve the problems involved in the background technology.

[0005] The utility model provides a temperature testing device for an energy storage battery system, comprising:

[0006] Temperature measuring box;

[0007] A chassis tray, located inside the temperature measuring box, serves as a transport carrier for the load-bearing mobile energy storage battery system;

[0008] Multiple thermocouples, each of which can be attached to a key temperature measurement point of the energy storage battery system;

[0009] A multi-channel temperature collector is located inside the temperature measuring box and is electrically connected to the thermocouple via a connecting wire; a WIFI antenna is provided on the multi-channel temperature collector;

[0010] The test computer host is arranged outside the temperature measuring box and is equipped with a matching WIFI router; the WIFI router is wirelessly connected to the WIFI antenna, and the WIFI router and the test computer host are connected via a wired / wireless network.

[0011] Preferably or optionally, the test computer host is communicatively connected to the cloud platform server via a wired / wireless network.

[0012] Preferably or optionally, the test computer host communicates and is electrically connected to the barcode scanner via a USB port.

[0013] Preferably or optionally, the controller of the temperature measuring box is connected to the communication interface of the test computer host;

[0014] The BMS main control board of the energy storage battery system is connected to the communication interface of the test computer host.

[0015] Preferably or optionally, a locking device suitable for locking and fixing the energy storage battery system is provided on the chassis tray, and active and / or passively movable rollers are provided at the bottom of the chassis tray.

[0016] Preferably or optionally, the chassis tray is equipped with a WIFI antenna, which is wirelessly connected to the WIFI router.

[0017] Preferably or optionally, the multi-channel temperature collector is equipped with a TF / SD card interface.

[0018] Preferably or optionally, the key temperature measurement points of the energy storage battery system include battery cells and busbars in the battery module.

[0019] Preferably or optionally, the thermocouple is a K-type probe thermocouple, the temperature measurement range of the K-type probe thermocouple at least covers 0 to 400° C., and the probe length is 50 to 200 mm.

[0020] The utility model also provides a temperature testing device for an energy storage battery system, comprising:

[0021] At least one temperature measuring chamber;

[0022] At least one chassis tray, each located inside the temperature measuring box, serving as a transport carrier for the load-bearing mobile energy storage battery system;

[0023] A plurality of thermocouple groups, wherein the thermocouple groups include multiple thermocouples, and the thermocouples can be respectively attached to key temperature measurement points of the energy storage battery system;

[0024] A plurality of multi-channel temperature collectors are respectively located inside the temperature measuring box and are electrically connected to the thermocouple group through connecting wires; the multi-channel temperature collectors are equipped with WIFI antennas;

[0025] At least one test computer host is arranged outside the temperature measuring box and is equipped with a matching WIFI router; the WIFI router is wirelessly connected to the WIFI antenna, and the WIFI router is connected to the test computer host via a wired / wireless network.

[0026] The utility model relates to a temperature testing device for an energy storage battery system, which has the following beneficial effects compared with the prior art:

[0027] 1. The utility model is a temperature testing device for an energy storage battery system, which is equipped with an intelligent chassis pallet for transportation, and is convenient for moving the energy storage battery system inside and outside the temperature box. The energy storage system is convenient to operate, and the intelligent chassis pallet is associated with an automatic testing system for automatically entering and exiting the temperature measuring box.

[0028] 2. The utility model provides a temperature test device for energy storage battery system, which effectively reduces the test cost. The temperature collector is arranged nearby to reduce the length of the sensor line, optimize the on-site wiring, effectively reduce the line loss, simplify the test environment, improve the test efficiency, display the data in real time, associate the QR code of the energy storage battery serial number, and can be remotely monitored through the APP to view the test history, test report association alarm threshold, bar chart pie chart, and production test report, effectively reducing manpower investment.

[0029] 3. The utility model provides a temperature test device for energy storage battery system, which has more accurate temperature acquisition. A single collector can collect multiple channels synchronously to reduce the time difference of channel testing. Multiple collectors can flexibly expand channels through WIFI. The collector has a high sampling rate and can easily capture the details of temperature changes. The collector has built-in accurate cold end measurement to achieve accurate temperature measurement. The built-in temperature measurement filtering algorithm can effectively suppress power frequency interference.

[0030] 4. The utility model provides a temperature testing device for an energy storage battery system, which has the advantages of safe and reliable temperature measurement. The multi-channel temperature collector adopts a standard thermocouple connector for reliable connection. At the same time, the collector has high temperature resistance, high protection level, supports SD / TF card storage, and ensures data integrity and traceability.

[0031] 5. The utility model provides a temperature testing device for an energy storage battery system, which has flexible scalability. Through the self-organizing network technology of multiple temperature collectors and WIFI routers, multiple temperature collectors can be networked and work together to provide support for a larger number of temperature measurement paths, meet the more refined temperature measurement needs of the energy storage system temperature measurement points, and simplify flexible and dynamic expansion.

[0032] 6. The utility model provides a temperature testing device for an energy storage battery system, which has low maintenance and operating costs. It adopts a combination of the Internet of Things and the Internet, APP remote monitoring and management, and intelligent operation and maintenance, and has low maintenance and operating costs.

[0033] 7. The utility model adopts the intelligent test computer host combined with the energy storage battery temperature test standard to import the test program. Different test standards are imported before the test to realize intelligent and automatic testing without human operation. In order to meet the temperature test requirements of energy storage battery systems in different forms such as energy storage PACK, energy storage battery cluster, and energy storage battery DC side prefabricated cabin, multiple temperature collectors can be flexibly selected. At the same time, a flexible "building block" networking method can be adopted to meet the temperature measurement requirements of energy storage battery system temperature test scenarios at different temperature measurement points. Combined with the Internet of Things and Internet technology, standardized / engineered replication and application can be carried out in engineering applications, and flexible and dynamic expansion can be simplified. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a connection diagram of an existing energy storage battery system temperature testing device.

[0035] Figure 2 It is a connection schematic diagram of the temperature testing device for the energy storage battery system of the utility model.

[0036] Figure 3 The present invention is a module schematic diagram of a temperature testing device for an energy storage battery system.

[0037] Figure 4 The utility model is a communication connection diagram of a temperature test device for an energy storage battery system.

[0038] Figure 5 This is a schematic diagram of a cascade network of multiple collectors of a temperature test device for an energy storage battery system of the utility model.

[0039] The accompanying drawings are marked as follows: 1. Temperature measuring box; 2. Chassis tray; 3. Energy storage battery system; 4. Thermocouple; 5. Multi-channel temperature collector; 6. Barcode scanner; 7. Test computer host; 8. WIFI router; 9. Cloud platform server. DETAILED DESCRIPTION

[0040] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0041] Utility Model Overview

[0042] The utility model provides a temperature test device for an energy storage battery system 3, comprising a temperature measuring box 1, a chassis tray 2, a multi-channel thermocouple 4, a multi-channel temperature collector 5, a barcode scanner 6, a test computer host 7, a WIFI router 8 and a cloud platform server 9. The chassis tray 2 is located inside the temperature measuring box 1, and serves as a transport carrier for the load-bearing mobile energy storage battery system 3; the thermocouple 4 can be attached to key temperature measuring points of the energy storage battery system 3 respectively; the multi-channel temperature collector 5 is located inside the temperature measuring box 1, and is electrically connected to the thermocouple 4 through a connecting wire; the multi-channel temperature collector 5 is equipped with a WIFI antenna; the test computer host 7 is arranged outside the temperature measuring box 1, and is equipped with a matching WIFI router 8; the WIFI router 8 is wirelessly connected to the WIFI antenna, and the WIFI router 8 is connected to the test computer host 7 via a wired / wireless network.

[0043] The utility model adopts a multi-channel temperature collector 5 placed in the temperature measuring box 1 and connected to the thermocouple 4 to collect temperature. The length of the thermocouple line is shortened to 1 to 3 meters, which greatly reduces the cost of the thermocouple line length, and does not require interface conversion. The collection accuracy is high, the line management is convenient, the measurement is nearby, the line loss is reduced, the test environment is simple, the collector is wireless and flexible to expand, and the temperature measurement points are dynamically increased and expanded. The overall cost is low, and it is convenient and flexible to transport. The advantages of automated testing can be applied to the temperature test of the energy storage battery system 3 to ensure that the energy storage battery system 3 meets the performance tests at different temperatures, such as high temperature storage test, high temperature cycle life test, thermal shock test, etc. The test system test ensures that the energy storage battery system 3 will not have thermal runaway, overheating, short circuit or other safety problems under extreme temperature conditions. The test system helps to evaluate whether the thermal management system design of the battery is effective and the thermal stability of the energy storage battery system 3 in long-term operation.

[0044] The present invention will be further described below in conjunction with embodiments. The examples of the embodiments are intended to explain the present invention and should not be construed as limiting the present invention.

[0045] Example 1

[0046] See attached Figures 2 to 4 A temperature testing device for an energy storage battery system 3 includes: a temperature measuring box 1, a chassis tray 2, an energy storage battery system 3, a multi-channel thermocouple 4, a multi-channel temperature collector 5, a barcode scanner 6, a test computer host 7, a WIFI router 8, and a cloud platform server 9.

[0047] In this embodiment, the temperature measuring box 1 is used as the temperature measuring carrier, and the chassis tray 2 is used as the mobile transport carrier of the load-bearing mobile energy storage battery system 3. The multi-channel thermocouples 4 are attached to the key temperature measuring points of the energy storage battery system 3. At the same time, the multi-channel thermocouples 4 are electrically connected to the multi-channel temperature collector 5. The multi-channel temperature collector 5 has a WIFI antenna and is wirelessly connected to the WIFI router 8 arranged outside the temperature measuring box 1. At the same time, the WIFI router 8 is connected to the test computer host 7 arranged outside the temperature measuring box 1 through a wired / wireless network. Multiple multi-channel temperature collectors 5 can be expanded through the WIFI router 8 to expand the number of temperature measurement channels. At the same time, the test computer host 7 is connected to the cloud platform server 9 through a wired / wireless network. At the same time, the test computer host 7 communicates and is electrically connected to the barcode scanner 6 through the USB port.

[0048] The temperature measuring box 1 host is connected to the test computer host 7 communication interface, and the computer host can remotely obtain the status of the temperature measuring box 1 and set the temperature data as well as start and stop the temperature measuring box 1 control through communication. The temperature measuring box 1 of this example adopts the high and low temperature rapid temperature change test box of Dongguan Gaoxin Monitoring Equipment Co., Ltd., model GX-3000-1000LT60, the inner box size of the temperature measuring box 1 is W1000*D1000*H1000, the effective volume of the studio is 1000L, the outer box size is W1300*D2000*H2150, the temperature range is -60℃~150℃, the temperature resolution is 0.01℃, the temperature fluctuation is ≤±0.5℃ (after the temperature stabilizes, the temperature change at any point in the test box within the specified time), the temperature deviation is ≤±2.0℃ (after the temperature stabilizes, the difference between the highest temperature, the lowest temperature and the nominal temperature at any time), Temperature balance ≤±2.0℃, heating rate 5℃±2℃ / min, -40℃~85℃ achieved within 30min (average heating, non-linear no-load), or 5℃±2℃ / min, RT+10~130℃ (linear heating, no-load), cooling rate 5℃±2℃ / min, 85℃~-40℃ achieved within 30min (average cooling, non-linear no-load), cooling method air cooling, equipment noise ≤72dB (A sound level, measured at 1 meter away from the equipment), equipment power supply 380VAC±10%, 50 / 60HZ, three-phase five-wire system + reliable grounding wire. This embodiment uses this temperature measuring box 1 to build a temperature measurement environment carrier for the energy storage battery system 3.

[0049] The chassis tray 2 is provided with a locking device suitable for locking and fixing the energy storage battery system 3, and the bottom of the chassis tray 2 is equipped with active and / or passive moving rollers. Specifically, the chassis tray 2 includes a chassis load-bearing suspension, a four-wheel independent drive controller, a four-wheel independent brake controller, a four-wheel independent steering controller, a four-wheel independent suspension controller, a centralized controller host, and a fixed positioner, wherein the centralized controller host is connected and interacted with the drive controller, brake controller, independent steering controller, suspension controller, etc. by wired communication, and is connected and interacted with the temperature measurement computer host by WIFI wireless communication. The mechanical structure of the intelligent chassis tray 2 is a prior art and will not be described in detail again.

[0050] The energy storage battery system 3 to be tested in this embodiment adopts the battery module of Far East Battery Jiangsu Co., Ltd., and the battery cell adopts 104Ah battery cell. The module PACK of the energy storage battery system 3 adopts 1P16S grouping mode. The battery box is equipped with battery modules to realize the voltage collection of each single cell, the temperature collection in the battery box and data upload. The modules and the modules to the main control adopt daisy chain or CAN communication mode. The nominal energy is 5.32kWh, the available energy is 5.05kWh, the PACK rated voltage is 51.2Vdc, and the operating voltage range is 43.2~57.6Vdc. The maximum charge / discharge current is 50A / 100A, the communication adopts CAN / RS485, the scalability is recommended to be ≤3 (maximum 8 parallel machines), the working humidity is ≤95% without condensation, the working temperature range is charging -10℃~50℃, discharging -20℃~50℃, the size is 420*140*650mm, the weight is ≤44kg, the fire protection level is IP65, the altitude is <2000m, the design life is 15 years (25℃), and the cycle life is >6000 (25℃). The key temperature measurement points in this embodiment are the battery cells in the module and the busbars.

[0051] The thermocouple 4 of this example adopts the K-type probe thermocouple of Bellemei, with an optional wire length of 1 to 5 meters. The temperature measurement temperature of the K-type probe thermocouple covers at least 0 to 400°C. Compared with some other types of thermocouples, the K-type probe thermocouple has better stability in long-term use and high temperature environment, especially in the medium and low temperature range of 0 to 400°C. The probe length of the K-type probe thermocouple is 50 to 200MM, the probe material is stainless steel, and the installation thread is M8*1.25MM. The longer probe (such as 200mm) is suitable for temperature measurement points that are difficult to reach in deep holes, pipelines or large equipment, and the shorter probe (such as 50mm) is suitable for surface measurement, shallow insertion or space-constrained occasions.

[0052] The multi-channel temperature collector has a multi-channel synchronous acquisition interface, adopts a standard thermocouple connector, has a fool-proof design, is suitable for environments with high and low temperature changes, and can effectively improve the stability of collected data. The multi-channel temperature collector 5 has a 2.4G WIFI antenna interface, which is connected to the local area network of the test computer host 7 for wireless communication, and transmits the temperature data during the test to the database of the test computer host 7 through the temperature measurement program. In addition, the multi-channel temperature collector 5 is equipped with a TF / SD card interface. After the TF / SD card is inserted, the multi-channel temperature collector 5 (5) collects multi-channel data and stores the multi-channel temperature measurement data locally at millisecond intervals. The multi-channel temperature collector 5 in this embodiment adopts an 8-channel temperature collector model ZAD2108 of Guangzhou Zhiyuan Electronics Co., Ltd., an 8-channel K-type thermocouple temperature collector, with a temperature measurement range of -200 to 1360°C, an accuracy of up to 0.02% ± 0.3°C, a rate of 1kSPS per channel, and an IP54 protection level. The product supports Wi-Fi communication, RS-485 / CAN communication, and TF-Card local data recording, which can effectively ensure the integrity of test data.

[0053] The barcode scanner 6 adopts the POWERSCAN TM The PM9501 scanner has a high-performance liquid lens that enhances the depth of field. It can efficiently read standard barcodes, wide barcodes and high-density barcodes, has high-speed omnidirectional reading performance, supports point-to-point and multi-point transmission, and can be flexibly networked and seamlessly roamed. The interfaces include Keyboard Wedge, RS-232, RS-485, USB, OEM USB, USB COM, USB HID keyboard, and has an IP65 waterproof and dustproof protection level. The scanner 6 used in this example is connected to the test computer host 7 via a USB interface.

[0054] The test computer host 7 is a local area network host, which is connected to the temperature measuring box 1, the intelligent chassis tray 22, the energy storage battery system 3, the multi-channel temperature collector 5, and the barcode scanner 6 through communication. The energy storage battery system 3 is automatically tested for high and low temperatures through the temperature measurement program combined with the temperature measurement program, and the associated test report, the test data and results during the test process are generated. The test computer host 7 uses a conventional notebook or desktop computer, and the basic configuration hardware environment is Inter(R)Celeron(R)CPU J1900@2.41GHz, 8G RAM and above. The human-computer interaction of the test system can be tested through the test computer host 7.

[0055] The WIFI router 8 is connected to the test computer host 7 via a LAN wired / wireless network, and the test computer host 7 is connected to the cloud platform server 9 via the WIFI router 8. The user can obtain the real-time status, data and historical data of the temperature measurement of the energy storage battery system 3 through the WEB / APP link to the cloud platform server 9. The WIFI router 8 of this embodiment adopts the WIFI router 8 of Huawei Router AX3 model, and its specification parameters are wireless rate: dual-band concurrent, 2976Mbps (2.4GHz: 574Mbps, 5GHz: 2402Mbps); transmission standard: 802.11ax / ac / n / a22&802.11ax / n / b / g 22, support MU-MIMO; wireless frequency band: 2.4GHz&5GHz, support dual-band optimization; antenna type: four external high-performance antennas, antenna gain: 5dBi; storage: RAM / Flash: 128MB / 128MB; network port: provides 4 10M / 100 / 1000M adaptive rate Ethernet interfaces, supports WAN / LAN adaptation (blind plug of network port); network port transmission protocol: 802.3, 802.3u, 802.3ab; whole machine power consumption: <12W; power supply specification: 12VDC, 1A; support Huawei Smart Life APP local / remote management, this example uses this WIFI router 8 to connect the test computer host 7, single / multiple multi-channel temperature collectors 5, and the smart chassis tray 2 to form a local area network, and data interaction is carried out through the local area network. At the same time, data interaction is carried out with the cloud platform server 9 through this WIFI router 8.

[0056] The test computer host 7 is connected to the cloud platform server 9 through the WIFI router 8, and the user can obtain the real-time status, data and historical data of the temperature measurement of the temperature test device of the energy storage battery system 3 through the WEB / APP link cloud platform server 9. The cloud platform server 9 of this embodiment is an Alibaba Cloud server, and the server hardware configuration CPU: AMD EPYC series 8 cores are used to support multi-threaded processing and high concurrency; memory: 16GB RAM is used; storage: SSD hard disk 1TB is used to store operating system, application and data; network: ensure sufficient bandwidth, use 1Gbps to ensure user and data transmission requirements, and ensure stable network connection and low latency; operating system uses CentOS; network configuration: configure static IP address for remote access and management, firewall: set firewall rules, only open necessary ports (such as HTTP 80 / 443, SSH 22, etc.), domain name: configure DNS, and resolve the domain name to the IP address of the server. This embodiment uses a cloud platform server 9 to interact with the test computer host 7, and uploads the test process and results of the associated energy storage battery system 3 to the cloud platform server 9. Users can view data, reports, charts, etc. associated with the temperature test of the energy storage battery system 3 through APP or WEB. The cloud server communicates with the test program in the test host through the WIFI router 8 to exchange data.

[0057] In summary, the temperature test device of the energy storage battery system 3 provided in this embodiment, through the above embodiment description and the attached drawings, constructs a test platform application using a wireless temperature measurement system for the energy storage battery system 3. The energy storage battery system 3 only needs to be fixedly placed on the chassis tray 2, and the test steps and test options are selected on the test host computer according to the test requirements. The supporting tester only needs to monitor the overall test process in real time through the human-computer interaction screen and software program of the computer host, and remotely view the associated system test data / reports / charts through WEB / APP, so that a temperature test device of the energy storage battery system 3 can be quickly and efficiently built. When the temperature measurement points of the energy storage battery system 3 cannot meet the system test application requirements, 2 or more multi-channel temperature collectors 5 can be configured to wirelessly network with the wireless WIFI router 8 to use this "building blocks" mode to construct a matrix temperature test device with multiple acquisition devices. The test computer host 7 combines the temperature test standard of the energy storage battery system 3 with one-key operation to associate the test configuration, so as to realize automated intelligent testing.

[0058] At the same time, by adopting this energy storage battery system 3 temperature test device, it also has the following advantages: 1. Intelligent mobility, equipped with an intelligent chassis tray 2, which is convenient for the movement and automated testing of the energy storage battery system 3. 2. Cost-effectiveness, by arranging the temperature collector nearby and optimizing the wiring, reducing line loss, simplifying the test environment, improving efficiency, and supporting remote monitoring and historical record viewing, reducing labor costs. 3. Accurate temperature measurement, multi-channel synchronous acquisition and high sampling rate collectors ensure accurate capture of temperature changes, and built-in accurate measurement and filtering algorithms improve temperature measurement accuracy. 4. Safe and reliable, using standard thermocouple connectors and collectors with high protection levels, supporting data storage, ensuring data integrity and traceability. 5. Flexible scalability, through WIFI self-organizing network technology, multiple collectors can be networked and work together to meet large-scale and refined temperature measurement needs. 6. Low maintenance and operating costs, combined with the Internet of Things and Internet technologies, support APP remote monitoring and management, and reduce maintenance and operating costs. 7. Intelligent testing: the test computer host 7 combines the energy storage battery temperature test standard to achieve automated testing, support different forms of energy storage battery systems 3, and can be standardized / engineered for replication and application.

[0059] Example 2

[0060] See attached Figure 5 In this embodiment, based on the first embodiment, a plurality of multi-channel temperature collectors 5 can form a local area network with a WIFI router 8, and the number of temperature measurement paths can be flexibly expanded according to the number of temperature measurement paths of the energy storage battery system 3.

[0061] Specifically, a temperature test device for an energy storage battery system 3 in this embodiment includes: at least one temperature measuring box 1, at least one chassis tray 2, multiple thermocouple groups, multiple multi-channel temperature collectors 5, and at least one test computer host 7. The chassis trays 2 are respectively located inside the temperature measuring box 1, serving as a transport carrier for the load-bearing mobile energy storage battery system 3; the thermocouple groups include multiple thermocouples 4, which can be attached to key temperature measuring points of the energy storage battery system 3; the multi-channel temperature collectors 5 are respectively located inside the temperature measuring box 1, and are electrically connected to the thermocouple groups 4 through connecting wires; the multi-channel temperature collectors 5 are equipped with WIFI antennas; the test computer host 7 is arranged outside the temperature measuring box 1, and is equipped with a matching WIFI router 8; the WIFI router 8 is wirelessly connected to the WIFI antenna, and the WIFI router 8 is connected to the test computer host 7 via a wired / wireless network.

[0062] The temperature testing device in this embodiment can be suitable for the temperature testing requirements of energy storage battery systems 3 in different forms such as energy storage PACK, energy storage battery cluster, and energy storage battery DC side prefabricated cabin. Multiple temperature collectors can be flexibly selected. At the same time, a flexible "building block" networking method can be adopted to meet the temperature measurement requirements of energy storage battery systems 3 in temperature testing scenarios at different temperature measurement points. Combined with the Internet of Things and Internet technologies, standardized / engineered replication applications can be carried out in engineering applications, and flexible and dynamic expansion can be simplified.

[0063] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

Claims

1. A temperature test device for an energy storage battery system, characterized in that: include Temperature measuring box; A chassis tray, located inside the temperature measuring box, serves as a transport carrier for the load-bearing mobile energy storage battery system; Multiple thermocouples, each of which can be attached to a key temperature measurement point of the energy storage battery system; A multi-channel temperature collector is located inside the temperature measuring box and is electrically connected to the thermocouple via a connecting wire; a WIFI antenna is provided on the multi-channel temperature collector; The test computer host is arranged outside the temperature measuring box and is equipped with a matching WIFI router; the WIFI router is wirelessly connected to the WIFI antenna, and the WIFI router and the test computer host are connected via a wired / wireless network.

2. The energy storage battery system temperature testing device according to claim 1, characterized in that: The test computer host is connected to the cloud platform server via a wired / wireless network.

3. The energy storage battery system temperature testing device according to claim 1, characterized in that: The test computer host communicates and is electrically connected to the barcode scanner via a USB port.

4. The energy storage battery system temperature testing device according to claim 1, characterized in that: The controller of the temperature measuring box is connected to the communication interface of the test computer host; The BMS main control board of the energy storage battery system is connected to the communication interface of the test computer host.

5. The energy storage battery system temperature testing device according to claim 1, characterized in that: The chassis tray is provided with a locking device suitable for locking and fixing the energy storage battery system, and the bottom of the chassis tray is equipped with active and / or passive moving rollers.

6. The energy storage battery system temperature testing device according to claim 1 or 5, characterized in that: The chassis tray is equipped with a WIFI antenna, which is wirelessly connected to the WIFI router.

7. The energy storage battery system temperature testing device according to claim 1, characterized in that: The multi-channel temperature collector is equipped with a TF / SD card interface.

8. The energy storage battery system temperature testing device according to claim 1, characterized in that: The key temperature measurement points of the energy storage battery system include the battery cells and busbars in the battery module.

9. The energy storage battery system temperature testing device according to claim 1, characterized in that: The thermocouple is a K-type probe thermocouple, the temperature measurement range of the K-type probe thermocouple at least covers 0 to 400° C., and the probe length is 50 to 200 mm.

10. A temperature test device for an energy storage battery system, characterized in that: include: At least one temperature measuring chamber; At least one chassis tray, each located inside the temperature measuring box, serving as a transport carrier for the load-bearing mobile energy storage battery system; A plurality of thermocouple groups, wherein the thermocouple groups include multiple thermocouples, and the thermocouples can be respectively attached to key temperature measurement points of the energy storage battery system; A plurality of multi-channel temperature collectors are respectively located inside the temperature measuring box and are electrically connected to the thermocouple group through connecting wires; the multi-channel temperature collectors are equipped with WIFI antennas; At least one test computer host is arranged outside the temperature measuring box and is equipped with a matching WIFI router; the WIFI router is wirelessly connected to the WIFI antenna, and the WIFI router is connected to the test computer host via a wired / wireless network.

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