CN218299892U - Electric bicycle lithium battery safety detection system - Google Patents
Electric bicycle lithium battery safety detection system Download PDFInfo
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- CN218299892U CN218299892U CN202221654952.1U CN202221654952U CN218299892U CN 218299892 U CN218299892 U CN 218299892U CN 202221654952 U CN202221654952 U CN 202221654952U CN 218299892 U CN218299892 U CN 218299892U
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Abstract
The utility model discloses an electric bicycle lithium cell safety detection system relates to the battery detection field. The system comprises a performance detection module, a data processing module and an early warning module which are sequentially connected; the performance detection module comprises a pressure detection unit, an insulation fault detection unit and a temperature detection unit, wherein the pressure detection unit is used for detecting the deformation parameters of the lithium ion battery; an insulation fault detection unit for detecting insulation leakage information of the battery; a temperature detection unit for detecting an internal temperature of the lithium battery; the data processing module comprises an A/D conversion unit and a central processing unit; the input end of the A/D conversion unit is connected with the output end of the performance detection module, the output end of the A/D conversion unit is connected with the central processing unit, and the central processing unit is used for carrying out early warning operation under the condition that the performance parameter exceeds a preset threshold value. The utility model discloses can carry out all-round detection and carry out timely early warning to the trouble to the performance of lithium cell.
Description
Technical Field
The utility model relates to a battery test technical field, more specifically the utility model relates to an electric bicycle lithium cell safety detection system that says so.
Background
The lithium ion battery has the advantages of high voltage, large specific energy, long cycle life, no memory effect, small self-discharge, rapid charge and discharge and the like, so the lithium ion battery is widely applied to some electronic equipment at present, but when the lithium battery has a fault problem, the problems of internal short circuit, fire explosion and the like can occur, whether the running state of the lithium battery is reliable or not directly relates to the safe running of the equipment, and therefore, the safety detection of the lithium battery is necessary.
After the lithium cell is through many times charge and discharge, probably cause one or more battery monomer trouble in the battery module and then can produce a large amount of heats, if do not in time discover and handle when the battery cell breaks down, continue to use and probably cause battery module trouble or even explode, and then cause the problem of casualties and consumer damage, in prior art, in order to prevent electric automobile battery package burning or explosion, all take the means that has good reliability on the battery, each integrated device safety design of heater strip, for example increase fuse or fuse, and do not have the means that judges in advance and take place danger, therefore, to technical staff in the art, how to carry out all-round detection and in time early warning to the trouble to the performance of lithium cell, be the problem of waiting for solution urgently.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an electric bicycle lithium cell safety detection system to solve the problem that proposes in the background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a safety detection system for a lithium battery of an electric bicycle comprises a performance detection module, a data processing module and an early warning module which are sequentially connected; wherein the content of the first and second substances,
the performance detection module comprises a pressure detection unit, an insulation fault detection unit and a temperature detection unit, wherein the pressure detection unit is used for detecting the deformation parameters of the lithium ion battery; the insulation fault detection unit is used for detecting insulation leakage information of the battery; the temperature detection unit is used for detecting the internal temperature of the lithium battery;
the data processing module comprises an A/D conversion unit and a central processing unit; the input end of the A/D conversion unit is connected with the output end of the performance detection module, the output end of the A/D conversion unit is connected with the central processing unit, and the central processing unit is used for comparing the performance parameters of the lithium ion battery detected by the performance detection module with a preset threshold value and carrying out early warning operation under the condition that the performance parameters exceed the preset threshold value.
Optionally, the system further comprises a data output module, and the data output module is connected with the data processing module.
Optionally, the data output module includes a data display unit, a data printing unit and a data transmission unit; the input end of the data display unit is in signal connection with the output end of the data processing module, the input end of the data printing unit is in signal connection with the other output end of the data processing module, and the input end of the data transmission unit is in signal connection with the third output end of the data processing module.
Optionally, the lithium battery further comprises a relay, connected to the output end of the lithium battery and the data processing module, and configured to disconnect the output circuit of the lithium battery according to an instruction of the data processing module when the data processing module determines that the internal temperature of the lithium battery reaches a first preset value.
Optionally, the central processing unit is an ARM + DSP architecture processor.
Optionally, the data output module is further connected to the mobile terminal and the big data platform; the mobile terminal comprises a mobile phone, a tablet, a notebook computer and wearable equipment.
Optionally, the battery charger further comprises a second relay, the second relay is connected in series in the battery charging and discharging circuit, and the second relay is controlled by the data processing module and/or the performance detection module and is used for switching on/off the battery charging and discharging circuit to protect the lithium battery.
Optionally, the early warning module is an audible and visual alarm and is used for performing audible and visual early warning when the lithium battery fails.
Optionally, the data display unit is a touch screen, and the data printing unit is directly connected to a printer and is used for printing data; the data transmission unit is used for network transmission and wireless transmission.
Can know via foretell technical scheme, compare with prior art, the utility model discloses a lithium cell safety detection system of electric bicycle has following profitable technological effect:
(1) The performance of the lithium battery can be detected in all directions, and faults can be early warned in time;
(2) Under the condition that the performance parameter exceeds the preset threshold value, the prevention operation is executed, the prevention of the lithium ion battery safety accident is realized, the accident can be effectively avoided from further deterioration, and the structure is simple, and the work is reliable:
(3) Through setting up data output module, export the data of the lithium cell that detects, show the performance data of lithium cell group through data display module, conveniently look up, also can print data through data printing module simultaneously, make things convenient for the staff to file, and data transmission module can carry out long-range upload and store through the internet with the data that obtain detecting.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a diagram of the structure of the performance testing module of the present invention;
fig. 3 is a structural diagram of the data output module of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model discloses a safety detection system for a lithium battery of an electric bicycle, which comprises a performance detection module, a data processing module and an early warning module which are connected in sequence, as shown in figure 1; wherein the content of the first and second substances,
as shown in fig. 2, the performance detection module includes a pressure detection unit, an insulation fault detection unit, and a temperature detection unit, where the pressure detection unit is used to detect a deformation parameter of the lithium ion battery; an insulation fault detection unit for detecting insulation leakage information of the battery; a temperature detection unit for detecting an internal temperature of the lithium battery;
the data processing module comprises an A/D conversion unit and a central processing unit; the input end of the A/D conversion unit is connected with the output end of the performance detection module, the output end of the A/D conversion unit is connected with the central processing unit, and the central processing unit is used for comparing the performance parameters of the lithium ion battery detected by the performance detection module with a preset threshold value and carrying out early warning operation under the condition that the performance parameters exceed the preset threshold value.
Specifically, central processing unit is ARM + DSP framework treater, and pressure detecting element is pressure sensor, and insulation fault detecting element is the insulation monitor, and temperature detecting element is temperature sensor, and the early warning module is audible-visual annunciator for carry out the audible-visual early warning when the lithium cell trouble.
Further, in order to more accurately detect the internal temperature of the lithium battery, the data collecting part of the temperature sensor may be attached to the surface of the battery of the lithium battery or the surface of a post (positive or negative electrode) of the battery. Of course, the temperature sensor may be provided in plurality.
The device also comprises a data output module, and the data output module is connected with the data processing module.
As shown in fig. 3, the data output module includes a data display unit, a data printing unit and a data transmission unit; the input end of the data display unit is in signal connection with the output end of the data processing module, the input end of the data printing unit is in signal connection with the other output end of the data processing module, and the input end of the data transmission unit is in signal connection with the third output end of the data processing module.
Specifically, the data display unit is a touch screen, and the data printing unit is directly connected with a printer and used for printing data; the data transmission unit is used for network transmission and wireless transmission. The data output module is also connected with the mobile terminal and the big data platform; the mobile terminal comprises a mobile phone, a tablet, a notebook computer and wearable equipment.
The lithium battery temperature monitoring device further comprises a relay connected with the output end of the lithium battery and the data processing module and used for disconnecting the output circuit of the lithium battery according to the instruction of the data processing module when the data processing module judges that the internal temperature of the lithium battery reaches a first preset value.
The second relay is controlled by the data processing module and/or the performance detection module and is used for switching on/off the battery charging and discharging circuit and protecting the lithium battery.
The design that two relays are adopted in the battery charging and discharging circuit is to control the other relay to be disconnected when one relay cannot be normally disconnected due to sticking or other reasons in the battery charging and discharging process, so that the battery is protected.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A safety detection system for a lithium battery of an electric bicycle is characterized by comprising a performance detection module, a data processing module and an early warning module which are sequentially connected; wherein the content of the first and second substances,
the performance detection module comprises a pressure detection unit, an insulation fault detection unit and a temperature detection unit, wherein the pressure detection unit is used for detecting the deformation parameters of the lithium ion battery; the insulation fault detection unit is used for detecting insulation leakage information of the battery; the temperature detection unit is used for detecting the internal temperature of the lithium battery;
the data processing module comprises an A/D conversion unit and a central processing unit; the input end of the A/D conversion unit is connected with the output end of the performance detection module, the output end of the A/D conversion unit is connected with the central processing unit, and the central processing unit is used for comparing the performance parameters of the lithium ion battery detected by the performance detection module with a preset threshold value and carrying out early warning operation under the condition that the performance parameters exceed the preset threshold value.
2. The safety detection system for the lithium battery of the electric bicycle as claimed in claim 1, further comprising a data output module, wherein the data output module is connected with the data processing module.
3. The safety detection system for the lithium battery of the electric bicycle as claimed in claim 2, wherein the data output module comprises a data display unit, a data printing unit and a data transmission unit; the input end of the data display unit is in signal connection with the output end of the data processing module, the input end of the data printing unit is in signal connection with the other output end of the data processing module, and the input end of the data transmission unit is in signal connection with the third output end of the data processing module.
4. The safety detection system for the lithium battery of the electric bicycle as claimed in claim 1, further comprising a relay connected to the output end of the lithium battery and the data processing module, and configured to disconnect the output circuit of the lithium battery according to an instruction of the data processing module when the data processing module determines that the internal temperature of the lithium battery reaches a first preset value.
5. The safety detection system for lithium batteries of electric bicycles of claim 1, wherein the central processing unit is an ARM + DSP architecture processor.
6. The safety detection system for the lithium battery of the electric bicycle according to claim 3, wherein the data output module is further connected with a mobile terminal and a big data platform; the mobile terminal comprises a mobile phone, a tablet, a notebook computer and wearable equipment.
7. The safety detection system for the lithium battery of the electric bicycle as claimed in claim 1, further comprising a second relay, wherein the second relay is connected in series with the battery charging and discharging circuit, and the second relay is controlled by the data processing module and/or the performance detection module and is used for switching on/off the battery charging and discharging circuit to protect the lithium battery.
8. The safety detection system for the lithium battery of the electric bicycle as claimed in claim 1, wherein the early warning module is an audible and visual alarm for performing audible and visual early warning when the lithium battery fails.
9. The safety detection system for the lithium battery of the electric bicycle as claimed in claim 3, wherein the data display unit is a touch screen, and the data printing unit is directly connected with a printer and used for printing data; the data transmission unit is used for network transmission and wireless transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221654952.1U CN218299892U (en) | 2022-06-30 | 2022-06-30 | Electric bicycle lithium battery safety detection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221654952.1U CN218299892U (en) | 2022-06-30 | 2022-06-30 | Electric bicycle lithium battery safety detection system |
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| Publication Number | Publication Date |
|---|---|
| CN218299892U true CN218299892U (en) | 2023-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221654952.1U Active CN218299892U (en) | 2022-06-30 | 2022-06-30 | Electric bicycle lithium battery safety detection system |
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| CN (1) | CN218299892U (en) |
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