Battery testing device
By using an image acquisition display and a rotatable temperature collector in the battery test device, the problem of sample loss in the traditional lithium-ion battery temperature measurement method is solved, real-time and accurate monitoring and recording of battery temperature is achieved, and the testing efficiency and success rate are improved.
Patent Information
- Application Number
- CN202421550132.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-02
AI Technical Summary
Traditional lithium-ion battery temperature measurement methods have problems such as the thermocouple wires that are prone to fall off and residual glue cannot be removed, resulting in sample loss.
A battery testing device is designed, including an image acquisition display and a rotatable temperature collector. The battery is scanned and imaged through the image acquisition display, and the test points are selected and named, so that the temperature collector can acquire the real-time temperature of the battery test points without contact.
Real-time monitoring and recording of battery temperature distribution is achieved, convenient operation and high success rate, improved testing efficiency, avoid sample damage, and supported reusability.
Smart Images
Figure CN222761739U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of battery testing, and in particular to a battery testing device. Background Art
[0002] Lithium-ion batteries have been widely used in electric vehicles, drones, biomedical devices and various portable electronic products. Due to the diverse use environments of these electronic products, a large number of tests are required on the temperature control of lithium-ion batteries to determine the optimal temperature control system parameters.
[0003] The temperature measurement of traditional lithium-ion batteries is mainly achieved through thermocouples. The thermocouple wires connecting the thermocouples are glued to the test points of the lithium-ion batteries with glue. The thermocouple wires are easy to fall off, and the residual glue cannot be removed, resulting in sample loss.
[0004] Therefore, there is an urgent need to provide a battery testing device to solve the above problems. Utility Model Content
[0005] The utility model aims to provide a battery testing device to improve the technical problem of sample loss.
[0006] To achieve the above-mentioned purpose, the utility model provides a battery testing device, comprising: a box body, comprising a first plate body and a second plate body; a test bench, arranged on a side of the first plate body facing the second plate body, the test bench being used to set a battery; an image acquisition display, arranged on the second plate body and facing the battery, the image acquisition display having an acquisition range, the acquisition range covering at least a portion of the battery to determine a plurality of battery test points of the battery; and a temperature collector, arranged on the second plate body and facing the first plate body, the temperature collector having a temperature acquisition probe, the temperature acquisition probe being configured to be rotatable to a position facing a corresponding battery test point and being used to collect the temperature of the battery test point.
[0007] In some embodiments, the temperature collector is a wireless temperature collector, and the wireless temperature collector includes an infrared detector.
[0008] In some embodiments, the battery testing device further includes: a cover body, which is disposed on the periphery of the test bench; a first temperature sensor, which is disposed on the outer surface of the cover body; and a second temperature sensor, which is disposed on the inner surface of the cover body.
[0009] In some embodiments, the box body further includes a plurality of third plates, each of the third plates is connected between the first plate body and the second plate body, and the first plate body is arranged opposite to the second plate body.
[0010] In some embodiments, the battery testing device further includes: an alarm, which is disposed on the third plate.
[0011] In some embodiments, the battery testing device further includes: a USB interface, which is disposed on the third board.
[0012] In some embodiments, the battery testing device further includes: a charge and discharge interface, which is disposed on the third plate and connected to the temperature collector.
[0013] In some embodiments, the battery testing device further includes: a charging and discharging device connected to the charging and discharging interface.
[0014] In some embodiments, the battery testing device further includes: a temperature compensator, wherein the temperature compensator is disposed on the cover.
[0015] In some embodiments, the temperature compensator is a fan.
[0016] The technical effect of the utility model is to provide a battery testing device, which can perform a planar scan and image the battery through an image acquisition display, and can directly select and name the battery test point by zooming in or out the image, so that the temperature collector can be rotated to the battery test point and directly collect the real-time temperature of the battery test point. Therefore, the application uses an image acquisition display to monitor and record the battery temperature distribution in real time, which is easy to operate and has a high success rate, improves the test efficiency, does not damage the sample, and can be reused. The temperature collector can quickly, accurately, and continuously read the real-time temperature of the battery test point without contact, and record it in real time. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.
[0018] Figure 1 A schematic diagram of the structure of a battery testing device provided in one embodiment of the present application.
[0019] Figure 2 A schematic structural diagram of a second plate body facing a first plate body provided in an embodiment of the present application.
[0020] Figure 3 A schematic diagram of the structure of a cover body provided in one embodiment of the present application.
[0021] The components of the attached drawings are identified as follows:
[0022] 1-box; 11-first plate; 12-second plate; 13-third plate;
[0023] 2-test bench; 3-cover;
[0024] 4-temperature control device; 41-image acquisition display; 42-temperature collector; 43-temperature compensator; 44-controller; 45-first temperature sensor; 46-second temperature sensor; 47-alarm;
[0025] 5-USB interface; 6-charging and discharging interface; 7-charging and discharging device. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.
[0027] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0028] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0029] The traditional temperature measurement method of lithium-ion batteries is mainly based on the thermocouple dispensing method. The shortcomings of the thermocouple dispensing method are as follows:
[0030] ① There are many temperature rise test points, and the thermocouple wire needs to be manually pasted to each test point, which is time-consuming;
[0031] ② The thermocouple wire may fall off during the test, resulting in a low test success rate;
[0032] ③ The lithium-ion battery cannot be removed after being glued, cannot be reused, and the sample loss rate is high;
[0033] ④ There is a delay in the data acquisition instrument recording the temperature, and there is a large error between each module and test point.
[0034] In order to overcome the above problems, an embodiment of the present application provides a battery testing device, which can quickly, accurately and continuously read the real-time temperature inside the cover, the real-time temperature outside the cover and the real-time temperature of the battery test point without contact through a temperature collector, and record it in real time. The image acquisition display can perform a planar scan and image of the battery. By zooming in or out on the image, the battery test point can be directly selected and named, so that the temperature collector can directly collect the real-time temperature of the battery test point. Therefore, the present application uses a temperature control device to monitor and record the battery temperature distribution in real time, which is easy to operate, has a high success rate, improves the test efficiency, does not damage the sample, and can be reused.
[0035] like Figures 1 to 3 As shown, an embodiment of the present application provides a battery testing device, including a box 1, a test bench 2, an image acquisition display 41 and a temperature collector 42. The box 1 includes a first plate 11 and a second plate 12. The test bench 2 is arranged on the side of the first plate 11 facing the second plate 12, and the test bench 2 is used to set the battery. The image acquisition display 41 is arranged on the second plate 12 and faces the battery. The image acquisition display 41 has an acquisition range, and the acquisition range covers at least part of the battery to determine multiple battery test points of the battery. The temperature collector 42 is arranged on the second plate 12 and faces the first plate 11. The temperature collector 42 has a temperature acquisition probe, and the temperature acquisition probe is configured to be rotatable to face the corresponding battery test point and to collect the temperature of the battery test point.
[0036] Therefore, the battery can be scanned and imaged in a plane through the image acquisition display 41, and the battery test point can be directly selected and named by zooming in or out of the image, so that the temperature collector 42 can be rotated to the battery test point and directly collect the real-time temperature of the battery test point. Therefore, the present application uses the image acquisition display 41 to monitor and record the battery temperature distribution in real time, which is convenient to operate and has a high success rate, improves the test efficiency, does not damage the sample, and can be reused. The temperature collector 42 can quickly, accurately, and continuously read the real-time temperature of the battery test point without contact, and record it in real time.
[0037] Specifically, Figures 1 to 3 As shown, the battery testing device includes a box body 1, a testing table 2, a cover body 3 and a temperature control device 4.
[0038] The box 1 includes a first plate 11, a second plate 12, and a plurality of third plates 13. The first plate 11 and the second plate 12 are arranged opposite to each other, and each third plate 13 is connected between the first plate 11 and the second plate 12. The first plate 11 is the bottom plate of the box 1, the second plate 12 is the transparent top plate of the box 1, and the third plate 13 is the side plate of the box 1. In this embodiment, there are four third plates 13, that is, the box 1 is a hexahedron. In other embodiments, the box 1 can be surrounded by the first plate 11 and the second plate 12, that is, a plurality of first plates 11 and a plurality of second plates 12 can be arranged adjacent to each other.
[0039] The test bench 2 is arranged on the first plate 11 and is used to place a battery. The test bench 2 can place at least one battery, that is, the number of batteries that can be placed on the test bench 2 is 1, 2, 3, etc. The battery has multiple battery test points.
[0040] The cover 3 is a transparent body, and the cover 3 is arranged on the periphery of the test bench 2 to form a battery test chamber. The shape of the cover 3 can be square, circular, etc., which are not described here one by one. The cover 3 can provide a stable environment for testing.
[0041] The temperature control device 4 includes an image acquisition display 41 , a temperature collector 42 and a controller 44 . The image acquisition display 41 and the temperature collector 42 are connected to the controller 44 , respectively.
[0042] In one embodiment, the image acquisition display 41 is disposed on the second plate 12 and faces the first plate 11 and the battery. The image acquisition display 41 has an acquisition range, and the acquisition range covers at least part of the battery to determine multiple battery test points of the battery. The image acquisition display 41 has the functions of shooting and displaying. The image acquisition display 41 is rotatably disposed on the second plate 12 and faces the first plate 11 and the battery, so that the acquisition range of the image acquisition display 41 can be expanded. Among them, the acquisition range of the image acquisition display 41 covers at least part of the battery. Specifically, the position of any test point of the battery is selected through the image displayed by the image acquisition display 41, and the test point is photographed, so that the battery testing device can collect the temperature of the test point at any position of the battery. The number of image acquisition displays 41 can be one or more, which is not particularly limited here, as long as it can cover the test range of the battery test point.
[0043] In one embodiment, the image acquisition display 41 is electrically connected to the controller 44. The image acquisition display 41 may include but is not limited to an infrared thermal imaging scanner.
[0044] In one embodiment, the temperature collector 42 is disposed on the second plate 12 and faces the first plate 11, that is, the temperature collector 42 is disposed on the lower surface of the top plate. The temperature collector 42 has a temperature collection probe (not shown), and the temperature collection probe is configured to be rotatable to a position facing the corresponding battery test point. The temperature collector 42 can be used for the real-time temperature of the battery test point. The temperature collector 42 can be a wireless temperature collector, and the wireless temperature collector can include an infrared detector.
[0045] During operation, the controller 44 is manually controlled to control the image acquisition display 41 to perform a planar scan and imaging of the battery. According to the acquired image (picture or video), the battery test point can be directly selected and named by zooming in or out of the image, and the temperature collector 42 can be rotated to the battery test point so that the temperature acquisition probe is aligned with the battery test point, thereby being able to quickly, accurately and continuously collect the real-time temperature of the battery test point without contact.
[0046] In one embodiment, the temperature control device 4 further includes a temperature compensator 43, which adjusts the temperature inside the cover 3 or the temperature outside the cover 3 according to the temperature difference between the real-time temperature inside the cover 3 and the real-time temperature outside the cover 3. The temperature compensator 43 may be a fan.
[0047] In one embodiment, the controller 44 can obtain the real-time temperature and the preset test temperature inside the cover body 3, and adjust the target temperature inside the cover body 3 according to the real-time temperature and the preset test temperature inside the cover body 3. The preset test temperature can be a temperature range or a single temperature value, and the value of the target temperature can be within the range of the preset test temperature or the same as the value of the preset test temperature. When the preset test temperature is a temperature range, an upper limit value and a lower limit value can be set by the controller 44 to obtain the range of the preset test temperature.
[0048] In operation, the temperature collector 42 collects the real-time temperature inside the housing 3 , and the controller 44 drives the temperature compensator 43 to adjust the temperature inside the housing 3 to the target temperature.
[0049] Specifically, when the preset test temperature is 20°C, the target temperature is 20°C, the real-time temperature inside the cover body 3 collected by the temperature collector 42 is 10°C, and the real-time temperature outside the cover body 3 is 5°C, the temperature difference between the real-time temperature inside the cover body 3 and the real-time temperature outside the cover body 3 is 5°C, and the temperature inside the cover body 3 is raised to 20°C through the controller 44. At the same time, according to the temperature difference between the real-time temperature inside the cover body 3 and the real-time temperature outside the cover body 3, the temperature inside the cover body 3 and the temperature outside the cover body 3 are adjusted to be basically consistent with each other as much as possible through the effect of temperature difference regulation, so as to achieve the standard of constant temperature and humidity.
[0050] Before the battery test, when the temperature difference between the real-time temperature inside the cover body 3 and the real-time temperature outside the cover body 3 is 5-8°C, the fan speed is set to 30%; when the temperature difference between the real-time temperature inside the cover body 3 and the real-time temperature outside the cover body 3 is 9-15°C, the fan speed is set to 50%; when the temperature difference between the real-time temperature inside the cover body 3 and the real-time temperature outside the cover body 3 is greater than 20°C, the fan speed is set to 100%; when the temperature difference between the real-time temperature inside the cover body 3 and the real-time temperature outside the cover body 3 is 0-2°C, the fan is set to the off state; when the temperature difference between the real-time temperature inside the cover body 3 and the real-time temperature outside the cover body 3 is 3-5°C, the fan speed is set to 10%.
[0051] In one embodiment, the temperature control device 4 further includes a first temperature sensor 45 , a second temperature sensor 46 and an alarm 47 .
[0052] The first temperature sensor 45 is disposed on the outer surface of the cover body 3, and is used to measure the real-time temperature inside the cover body 3 and send it to the temperature collector 42. The number of the first temperature sensors 45 can be one or more. Optionally, the first temperature sensor 45 can be disposed at any position on the outer surface of the cover body 3. Preferably, the first temperature sensor 45 is disposed on the outer side of the cover body 3, so that the first temperature sensor 45 will not be blocked when the temperature collector 42 collects the temperature of the battery test point.
[0053] The second temperature sensor 46 is arranged on the inner surface of the cover body 3, and is used to measure the real-time temperature outside the cover body 3 and send it to the temperature collector 42. The second temperature sensor 46 can be arranged in a staggered manner with the first temperature sensor 45 to avoid interference between the two sensors during installation. The number of second temperature sensors 46 can be one or more. Optionally, the second temperature sensor 46 can be arranged at any position on the inner surface of the cover body 3. Preferably, the second temperature sensor 46 is arranged on the inner side of the cover body 3, so that the first temperature sensor 45 will not block the temperature when the second temperature sensor 46 collects the temperature of the battery test point.
[0054] The alarm 47 is disposed on the third plate 13 and is electrically connected to the controller 44. The temperature collector 42 collects the real-time temperature of the battery test point. When the real-time temperature of the battery test point exceeds the target temperature, the alarm 47 sounds an alarm, and the temperature compensator 43 adjusts the temperature inside the cover 3 according to the temperature difference between the real-time temperature inside the cover 3 and the real-time temperature outside the cover 3.
[0055] In one embodiment, the controller 44 is a controller 44 disposed in a touch screen and connected to a touch screen of the touch screen. The image acquisition display 41 on the top of the box 1 can perform a planar scanning image of the battery and transmit the image to the touch screen. The battery test point can be directly selected and named by zooming in and out of the image on the touch screen, and the temperature collector 42 collects the real-time temperature of the battery test point. Therefore, the battery testing device provided by the present application can manually select and name the test point, and the temperature collector 42 can quickly, accurately, and continuously read the real-time temperature of the battery test point without contact, and record it in real time.
[0056] By setting the preset test temperature, the collection time of the temperature collector 42 and the scheduled stop time of the battery test device on the touch screen. Among them, the preset test temperature is set to the temperature required by the box 1 for the experimental environment. The collection time of the temperature collector 42 can be the collection interval time with an accuracy of 1ms. Among them, when the test is unattended or at night, the scheduled stop time of the battery test device is used to avoid the infrared system from continuing to work after the experiment ends, causing waste of resources and increasing the amount of data processing.
[0057] When the real-time temperature of the battery test point exceeds the target temperature, the alarm 47 sounds an alarm and stops scanning, and sends information to the controller 44, and stops adjusting the temperature inside the cover 3 through the controller 44, so as to maximize the safety of the experimental environment and avoid experimental accidents.
[0058] In one embodiment, the battery testing device further includes a USB interface 5 , a charge and discharge interface 6 and a charge and discharge device 7 .
[0059] The USB interface 5 is disposed on the third plate 13 and connected to the controller 44. The temperature collector 42 can save the collected temperature and the image acquisition display 41 can save the collected image through the path of the USB interface.
[0060] The charge and discharge interface 6 is disposed on the third plate 13 and connected to the controller 44 .
[0061] The charging and discharging device 7 is connected to the charging and discharging interface 6 and supplies power to the temperature control device 4. Specifically, the charging device supplies power to the temperature collector 42, the temperature compensator 43 and the controller 44.
[0062] The method of using the battery testing device provided in one embodiment of the present application is as follows:
[0063] Place the battery on the test bench 2 and cover the battery with a cover 3;
[0064] The temperature collector 42 and the image acquisition display 41 are turned on by the controller 44. The image acquisition display 41 will perform a plane scan of the battery and image it on the touch screen;
[0065] According to the size of the image, the image is enlarged or reduced on the controller 44, and the battery test point is selected and named;
[0066] The preset test temperature and test time of the selected battery test point are set. When the temperature collector 42 detects that the real-time temperature of the battery test point exceeds the target temperature, the alarm 47 sounds an alarm, and the temperature compensator 43 adjusts the temperature inside the cover 3 according to the temperature difference between the real-time temperature inside the cover 3 and the real-time temperature outside the cover 3;
[0067] The test data is saved in a USB path through the controller 44;
[0068] After completing the above steps, the test data (such as preset test temperature, test time and other parameters) are saved to a U disk, a mobile hard disk or other device with storage function through the USB interface 5.
[0069] In the battery testing device provided in the embodiment of the present application, the image acquisition display 41 can perform a planar scan of the battery and form an image. By zooming in or out on the image, the battery test point can be directly selected and named, and the temperature collector 42 can be rotated to the battery test point and directly collect the real-time temperature of the battery test point. Therefore, the present application uses the image acquisition display 41 to monitor and record the battery temperature distribution in real time, which is convenient to operate and has a high success rate, improves the test efficiency, does not damage the sample, and can be reused. The temperature collector 42 can quickly, accurately, and continuously obtain the real-time temperature of the battery test point without contact, and record it in real time.
[0070] The above is a detailed introduction to a battery testing device provided in an embodiment of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A battery testing device, characterized in that: include: The box body comprises a first plate body and a second plate body; A test bench, arranged on a side of the first plate body facing the second plate body, the test bench being used to set a battery; An image acquisition display, disposed on the second plate and facing the battery, the image acquisition display having an acquisition range, the acquisition range covering at least a portion of the battery to determine a plurality of battery test points of the battery; as well as A temperature collector is arranged on the second plate and faces the first plate. The temperature collector has a temperature collection probe. The temperature collection probe is configured to be rotatable to face the corresponding battery test point and to collect the temperature of the battery test point.
2. The battery testing device according to claim 1, characterized in that: Also includes: The temperature collector is a wireless temperature collector, and the wireless temperature collector includes an infrared detector.
3. The battery testing device according to claim 1, characterized in that: Also includes: A cover body, which is arranged on the periphery of the test bench; A first temperature sensor is disposed on the outer surface of the cover; The second temperature sensor is arranged on the inner surface of the cover body.
4. The battery testing device according to claim 1, characterized in that: The box body further includes a plurality of third plates, each of the third plates is connected between the first plate body and the second plate body, and the first plate body is arranged opposite to the second plate body.
5. The battery testing device according to claim 4, characterized in that: Also includes: The alarm is arranged on the third plate.
6. The battery testing device according to claim 4, characterized in that: Also includes: The USB interface is arranged on the third board.
7. The battery testing device according to claim 4, characterized in that: Also includes: The charging and discharging interface is arranged on the third plate body and connected to the temperature collector.
8. The battery testing device according to claim 7, characterized in that: Also includes: A charging and discharging device is connected to the charging and discharging interface.
9. The battery testing device according to claim 1, characterized in that: Also includes: A temperature compensator is arranged on the cover.
10. The battery testing device according to claim 9, characterized in that: The temperature compensator is a fan.