CN115902673A - Method for detecting total voltage of battery module and voltage of single battery - Google Patents
Method for detecting total voltage of battery module and voltage of single battery Download PDFInfo
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- CN115902673A CN115902673A CN202211697304.9A CN202211697304A CN115902673A CN 115902673 A CN115902673 A CN 115902673A CN 202211697304 A CN202211697304 A CN 202211697304A CN 115902673 A CN115902673 A CN 115902673A
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Abstract
The invention discloses a method for detecting total voltage of a battery module and voltage of a single battery, which comprises the following steps: setting a detection end and an analysis end which are connected; the offline battery module is connected with the detection end; the detection end collects the total voltage of the battery module and the voltage of the single battery and transmits the total voltage and the voltage of the single battery to the analysis end; scanning the information label and transmitting the material coding information to an analysis end; the analysis end calls a total voltage standard range and a single battery standard range according to the material coding information; if the total voltage of the battery module exceeds the total voltage standard range or the voltage of a single battery exceeds the single battery standard range, the analysis end judges that the battery module is unqualified; if the total voltage of the battery module is in the total voltage standard range and the voltage of the single battery is in the single battery standard range, the analysis end judges that the battery module is qualified. This application has promoted detection efficiency, has reduced the risk that the defective products flowed out, reduces quality accident and economic loss.
Description
Technical Field
The invention relates to the technical field of battery module detection, in particular to a method for detecting total voltage of a battery module and voltage of a single battery.
Background
The battery module is the core component of the energy storage product, and after the produced battery module is offline, the total voltage of the battery module and the serial-parallel connection correctness of the internal batteries need to be checked. In the prior art, at present, a worker mainly tests the total voltage of a battery module of a certain type through a universal meter or a voltmeter, and then the correctness of the total voltage of the battery module and the correctness of the serial-parallel connection of internal batteries are judged manually. And during actual operation, the following problems can exist in the battery module through manual detection and judgment:
1. the detection standards of the battery modules of different models are different, and when the battery modules of different models are switched, the manual judgment is easy to use the wrong standards, the recording errors are easy, the efficiency is low, and even quality accidents are caused;
2. when the total voltage of the battery module is in a specified range, if one or more batteries in the battery module have too high or too low voltage, the voltage of a single battery cannot be identified and judged manually, defective products are easy to flow out, and quality accidents and economic losses are caused.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a method for detecting the total voltage of a battery module and the voltage of a single battery.
The invention discloses a method for detecting total voltage of a battery module and voltage of a single battery, which comprises the following steps:
setting a detection end and an analysis end which are connected; the detection end is integrated with a voltage monitoring unit of a battery management system, and the analysis end stores a total voltage standard range and a single battery standard range;
the offline battery module is connected with the detection end; the surface of the battery module is attached with an information label, and the information label stores material coding information;
the detection end collects the total voltage of the battery module and the voltage of the single battery and transmits the total voltage and the voltage of the single battery to the analysis end;
scanning the information label and transmitting the material coding information to an analysis end;
the analysis end calls a total voltage standard range and a single battery standard range according to the material coding information;
the analysis end compares the total voltage of the battery module collected by the detection end with the standard range of the total voltage, and compares the voltage of a single battery collected by the detection end with the standard range of the single battery;
if the total voltage of the battery module exceeds the total voltage standard range or the voltage of a single battery exceeds the single battery standard range, the analysis end judges that the battery module is unqualified; and if the total voltage of the battery module is in the total voltage standard range and the voltage of the single battery is in the single battery standard range, the analysis end judges that the battery module is qualified.
According to an embodiment of the present invention, the information tag further stores identity information;
when the battery label is scanned, the material coding information and the identity information are synchronously transmitted to an analysis end;
the analysis end judges that the battery module is unqualified and marks the battery module according to the identity information; and the analysis end judges that the battery module is qualified and marks the battery module according to the identity information.
According to an embodiment of the present invention, it further comprises the steps of:
and (4) enabling the qualified battery module to flow into the next process, and repairing the unqualified battery module.
According to an embodiment of the present invention, it further comprises the steps of:
and the analysis end carries out tracing inquiry on the process information according to the identity information.
According to an embodiment of the present invention, the total voltage standard range includes a minimum voltage of the battery module and a maximum voltage of the battery module; the standard range of the single battery comprises the lowest voltage of the single battery and the highest voltage of the elevator battery.
According to an embodiment of the present invention, the analyzing end is an MES system.
According to one embodiment of the invention, the analysis end judges that the battery module is unqualified and sends out warning information.
According to an embodiment of the present invention, the warning information is display information of the qualified status of the battery module and the single battery.
According to one embodiment of the invention, the analysis end stores the warning information.
The beneficial effect of this application lies in: the voltage monitoring unit of the battery management system for the energy storage product is used for detecting the total voltage of the front-end offline battery module and the voltage of the single battery, the detection standard is standardized, the problem that the single battery cannot be detected manually and the manual recording error is avoided, the detection efficiency is improved, the risk of outflow of unqualified products is reduced, and quality accidents and economic losses are reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a flow chart of a method for detecting total voltage of a battery module and voltage of a single battery in an embodiment;
fig. 2 is a schematic diagram illustrating the connection of the detection terminal, the analysis terminal and the battery module in the embodiment.
Detailed Description
In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the various embodiments of the present invention. It should be understood, however, that these implementation details should not be taken to limit the invention. That is, in some embodiments of the invention, such implementation details are not necessary. In addition, for the purpose of simplifying the drawings, certain well-known and conventional structures and components are shown in the drawings in a simplified schematic manner.
It should be noted that all the directional indicators in the embodiments of the present invention, such as up, down, left, right, front, and back, 8230, are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are used for descriptive purposes only, do not specifically refer to an order or sequence, and do not limit the present invention, but merely distinguish elements or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit identification of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
referring to fig. 1, fig. 1 is a flowchart illustrating a method for detecting a total voltage of a battery module and a voltage of a single battery in an embodiment. The method for detecting the total voltage of the battery module and the voltage of the single battery in the embodiment comprises the following steps:
s1, setting a detection end and an analysis end which are connected; the detection end is integrated with a voltage monitoring unit of a battery management system, and the analysis end stores a total voltage standard range and a single battery standard range;
s2, connecting the offline battery module with the detection end; the surface of the battery module is attached with an information label, and the information label stores material coding information;
s3, collecting the total voltage of the battery module and the voltage of a single battery by the detection end and transmitting the total voltage and the voltage of the single battery to the analysis end;
s4, scanning the information label and transmitting the material coding information to an analysis end;
s5, the analysis end calls a total voltage standard range and a single battery standard range according to the material coding information;
s6, the analysis end compares the total voltage of the battery module collected by the detection end with the total voltage standard range, and compares the single battery voltage collected by the detection end with the single battery standard range;
s7, if the total voltage of the battery module exceeds the total voltage standard range or the voltage of a single battery exceeds the single battery standard range, the analysis end judges that the battery module is unqualified; and if the total voltage of the battery module is in the total voltage standard range and the voltage of the single battery is in the single battery standard range, the analysis end judges that the battery module is qualified.
The voltage monitoring unit of the battery management system for the energy storage product is used for detecting the total voltage of the front-end offline battery module and the voltage of the single battery, the detection standard is standardized, the problem that the single battery cannot be detected manually and the manual recording error is avoided, the detection efficiency is improved, the risk of outflow of unqualified products is reduced, and quality accidents and economic losses are reduced.
Referring to fig. 2, fig. 2 is a schematic diagram illustrating the connection of the detection terminal, the analysis terminal and the battery module in the embodiment. The detecting terminal 1 in this embodiment includes a bearing plate 11, a control plate 12 and a connecting wire 13, wherein the control plate 12 is a PCB board, and a voltage monitoring unit of a battery management system BMS is integrated therein. The connection lines 13 are used to electrically connect the control board 12 to the battery module 2 and the analysis terminal 3, respectively. In this embodiment, the analysis end 3 is an MES system, and specifically operates in an industrial computer. The MES is a manufacturing process execution system of a manufacturing enterprise, and is a set of production informatization management system facing a workshop execution layer of the manufacturing enterprise, and the content of the invention can be realized by adopting the existing MES in the embodiment.
In step S1, the detection terminal 1 and the analysis terminal 3 are set up, and specifically, both ends of the connection line 13 are connected to the computer interfaces of the control board 12 and the analysis terminal 3, respectively, so as to realize information interaction. The total voltage standard range in the embodiment comprises the lowest voltage of the battery module and the highest voltage of the battery module; the standard range of the single battery comprises the lowest voltage of the single battery and the highest voltage of the elevator battery. When the detected total voltage of the battery modules is between the lowest voltage of the battery modules and the highest voltage of the battery modules, it is determined that the battery modules are normal. Similarly, when the detected voltage of the single battery is between the lowest voltage of the single battery and the highest voltage of the elevator battery, the single battery is normal.
In step S2, the offline battery module 2 is connected to the detection terminal 1 through the connection line 13, which is connected to the interface of the battery module 2 and the interface of the control board 12, respectively, so as to realize information interaction. The information label is a bar code or two-dimensional code label, and can store information and read by scanning.
In step S3, when the detection terminal 1 is connected to the battery module 2, the voltage monitoring unit of the BMS stored in the control board 12 reads and detects the battery module 2.
Then, in step S4, the information tag is scanned, so that the material encoding information is transmitted to the analysis end 3.
In step S5, the MES of the analysis end 3 obtains the model of the battery module 2 to be tested according to the material coding information, so as to correspondingly call the total voltage standard range and the single battery standard range required by the battery module 2 of the model.
Then, in step S6, a comparative analysis is performed, and in step S7, only if the total voltage of the battery module 2 and the voltage of the single battery are within the required total voltage standard range and the required single battery standard range, the battery module 2 can be determined to be qualified, otherwise, the battery module is determined to be unqualified.
Preferably, the information tag further stores identity information. In step S4, when the battery label is scanned, the material coding information and the identity information are synchronously transmitted to the analysis end. In step S7, the analysis end judges that the battery module is unqualified and marks the battery module according to the identity information; and the analysis end judges that the battery module is qualified and marks the battery module according to the identity information.
Preferably, the method for detecting the total voltage of the battery module and the voltage of the single battery in this embodiment further includes the following steps: and S8, allowing the qualified battery modules to flow into the next process, and repairing the unqualified battery modules. And S9, the analysis end carries out tracing inquiry on the process information according to the identity information. Therefore, the unique identity information ID is given to the battery module to be detected through the information tag, so that the identity information ID and the detection result information of the battery module are in one-to-one correspondence, the follow-up tracing query is facilitated, and the accurate process management of the product is realized.
In the embodiment, the analysis end judges that the battery module is unqualified and sends out warning information. The warning information is display information of the qualified states of the battery module and the single battery. So that the tester can directly observe the result state of the detected battery module and perform corresponding processing. In a specific application, the display is performed on a display screen of an industrial computer.
In this embodiment, the analysis end stores the warning information. So as to facilitate subsequent historical queries for alert information.
In summary, the method for detecting the total voltage of the battery module and the voltage of the single battery is characterized in that the voltage monitoring unit of the BMS is applied to the detection of the total voltage of the offline battery module and the voltage of the single battery in a preposed manner and is combined with the MES system, so that the problem that the detection is incomplete due to the fact that the voltage of the single battery cannot be detected because of recording errors when the detection of the total voltage of the battery module and the voltage of the single battery is manually detected is solved, the process quality management capability of the battery module product is enhanced, the detection efficiency is improved, the risk of non-qualified product outflow is reduced, the process tracing can be realized, and the customer satisfaction and the economic benefit are improved.
The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (9)
1. A method for detecting the total voltage of a battery module and the voltage of a single battery is characterized by comprising the following steps:
setting a detection end and an analysis end which are connected; the detection end is integrated with a voltage monitoring unit of a battery management system, and the analysis end stores a total voltage standard range and a single battery standard range;
the offline battery module is connected with the detection end; the surface of the battery module is attached with an information label, and the information label stores material coding information;
the detection end collects the total voltage of the battery module and the voltage of the single battery and transmits the total voltage and the voltage of the single battery to the analysis end;
scanning the information label and transmitting the material coding information to the analysis end;
the analysis end calls the total voltage standard range and the single battery standard range according to the material coding information;
the analysis end compares the total voltage of the battery module collected by the detection end with the total voltage standard range, and compares the single battery voltage collected by the detection end with the single battery standard range;
if the total voltage of the battery module exceeds the total voltage standard range or the single battery voltage exceeds the single battery standard range, the analysis end judges that the battery module is unqualified; and if the total voltage of the battery module is in the total voltage standard range and the single battery voltage is in the single battery standard range, the analysis end judges that the battery module is qualified.
2. The method for detecting the total voltage of the battery module and the voltage of the single battery as claimed in claim 1, wherein the information tag further stores identity information;
when the battery label is scanned, the material coding information and the identity information are synchronously transmitted to the analysis end;
the analysis end judges that the battery module is unqualified and marks the battery module according to the identity information; and the analysis end judges that the battery module is qualified and marks the battery module according to the identity information.
3. The method for detecting the total voltage of the battery module and the voltage of the single battery according to claim 2, further comprising the steps of:
and the qualified battery module flows into the next process, and the unqualified battery module is repaired.
4. The method for detecting the total voltage of the battery module and the voltage of the single battery according to claim 3, further comprising the steps of:
and the analysis end carries out tracing inquiry on the process information according to the identity information.
5. The method for detecting the total voltage of the battery modules and the voltage of the single battery according to claim 1, wherein the total voltage standard range comprises a lowest voltage of the battery modules and a highest voltage of the battery modules; the standard range of the single battery comprises the lowest voltage of the single battery and the highest voltage of the elevator battery.
6. The method as claimed in claim 1, wherein the analyzing end is an MES system.
7. The method for detecting the total voltage of the battery module and the voltage of the single battery as claimed in claim 1, wherein the analysis end determines that the battery module is not qualified and sends out warning information.
8. The method as claimed in claim 7, wherein the warning message is a display message indicating the qualified status of the battery module and the battery cell.
9. The method for detecting the total voltage of the battery module and the voltage of the single battery as claimed in claim 7, wherein the analysis end stores warning information.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211697304.9A CN115902673A (en) | 2022-12-28 | 2022-12-28 | Method for detecting total voltage of battery module and voltage of single battery |
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| CN202211697304.9A CN115902673A (en) | 2022-12-28 | 2022-12-28 | Method for detecting total voltage of battery module and voltage of single battery |
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| CN113442771A (en) * | 2021-06-23 | 2021-09-28 | 深圳利民通科技发展有限公司 | Intelligent current distribution charging control system |
-
2022
- 2022-12-28 CN CN202211697304.9A patent/CN115902673A/en active Pending
Patent Citations (6)
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|---|---|---|---|---|
| CN101976401A (en) * | 2010-11-19 | 2011-02-16 | 天津力神电池股份有限公司 | Scanning test method used before delivery of batteries and system thereof |
| CN105346405A (en) * | 2015-10-27 | 2016-02-24 | 北京新能源汽车股份有限公司 | Electric automobile and battery pack monitoring system thereof |
| CN110931899A (en) * | 2019-12-10 | 2020-03-27 | 武汉理工大学 | Fault diagnosis and failure processing system and method for lithium ion power battery pack |
| CN111679146A (en) * | 2020-07-14 | 2020-09-18 | 深圳市道通科技股份有限公司 | Method and device for acquiring standard parameters of vehicle storage battery |
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