CN214540543U - Automatic gas flow regulating system for lithium ion battery - Google Patents
Automatic gas flow regulating system for lithium ion battery Download PDFInfo
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- CN214540543U CN214540543U CN202120515033.5U CN202120515033U CN214540543U CN 214540543 U CN214540543 U CN 214540543U CN 202120515033 U CN202120515033 U CN 202120515033U CN 214540543 U CN214540543 U CN 214540543U
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 24
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 83
- 238000003860 storage Methods 0.000 claims abstract description 30
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 230000001276 controlling effect Effects 0.000 claims abstract description 15
- 239000007789 gas Substances 0.000 description 120
- 239000001307 helium Substances 0.000 description 21
- 229910052734 helium Inorganic materials 0.000 description 21
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 21
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model discloses an automatic gas flow regulating system for lithium ion batteries, which comprises a gas storage container, a gas transmission pipeline, a first pressure detection device, a second pressure detection device, a regulating device and a controller; wherein, an air outlet suitable for supplying air to the outside is arranged in the air storage container; the inlet end of the gas transmission pipeline is connected with the gas outlet of the gas storage container, the first pressure detection device is connected with the gas outlet of the gas storage container and is suitable for detecting the gas pressure at the gas outlet, the second pressure detection device is connected with the outlet end of the gas transmission pipeline and is suitable for detecting the gas pressure at the outlet end of the gas transmission pipeline, and the adjusting device is connected with the gas outlet of the gas storage container; the controller is in control connection with the adjusting device and is suitable for controlling the adjusting device to act so as to adjust the opening and closing degree of the air outlet. The utility model discloses can adjust the gas flow of outside air feed fast in time, and then make gas pressure remain stable all the time.
Description
Technical Field
The utility model relates to a gas flow automatic regulating system for lithium ion battery.
Background
At present, the extension degree of glue after the gluing of the battery core can be influenced by the flatness of the side face of the lithium ion battery, so that the stability of the position of the battery core in the module is influenced, the service life of the module is determined, and the size of the flatness of the side face of the battery core depends on the degree of the helium filling projection.
In the process of filling helium to make the protrusions, helium gas is needed to apply certain pressure to the interior of the battery cell. However, during the helium filling process, the flow rate of helium gas generally fluctuates greatly, and the flow rate of helium gas is a main factor influencing the helium filling pressure, so that the flatness of the side surface of the cell is poor. The current solution to this situation is to stabilize the helium charging pressure by manually adjusting the flow of helium gas. However, the manual regulation has hysteresis, the stability of the helium flow can be ensured only in a short period, the aging is very short, and the helium filling pressure is still unstable due to the instability of the helium flow in the long-term continuous production process, so that the convexity of the battery cell is out of control.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome prior art's defect, provide a gas flow automatic regulating system for lithium ion battery, it can adjust the gas flow of outside air feed fast in time, and then makes gas pressure remain stable throughout.
In order to solve the technical problem, the technical scheme of the utility model is that: a gas flow automatic regulating system for a lithium ion battery comprises a gas storage container, a gas transmission pipeline, a first pressure detection device, a second pressure detection device, a regulating device and a controller; wherein,
the air storage container is internally provided with an air outlet suitable for supplying air outwards;
the inlet end of the gas transmission pipeline is connected with the gas outlet of the gas storage container, and the outlet end of the gas transmission pipeline is suitable for supplying gas outwards;
the first pressure detection device is connected with the gas outlet of the gas storage container and is suitable for detecting the gas pressure at the gas outlet, and the first pressure detection device is also connected with the signal input end of the controller and is suitable for sending a detected pressure signal to the controller;
the second pressure detection device is connected with the outlet end of the gas transmission pipeline and is suitable for detecting the gas pressure at the outlet end of the gas transmission pipeline, and the second pressure detection device is also connected with the signal input end of the controller and is suitable for sending the detected pressure signal to the controller;
the adjusting device is connected to the air outlet of the air storage container;
the controller is in control connection with the adjusting device and is suitable for controlling the adjusting device to act according to the pressure signal detected by the first pressure detecting device and the pressure signal detected by the second pressure detecting device so as to adjust the opening degree of the air outlet.
Further provides a specific scheme of the first pressure detection device and the second pressure detection device, and the first pressure detection device and/or the second pressure detection device are barometers.
Further provides a concrete scheme of the adjusting device, and the adjusting device comprises an automatic adjusting valve.
Further, the gas storage container is a gas cylinder, and a gas outlet pipe is connected to a gas outlet of the gas cylinder;
the first pressure detection device and the adjusting device are respectively connected to the air outlet pipe;
the inlet end of the gas transmission pipeline is connected with the gas outlet pipe.
Further, the automatic gas flow regulating system for the lithium ion battery further comprises a third pressure detecting device adapted to detect the gas pressure in the gas storage container.
Further, the third pressure detection device, the adjusting device and the first pressure detection device are sequentially arranged along the flowing direction of the gas in the gas outlet pipe and are connected to the gas outlet pipe.
Further to ensure that the air source is sufficient, the automatic gas flow regulating system for the lithium ion battery further comprises a first alarm device; wherein,
the third pressure detection device is connected with a signal input end of the controller and is suitable for sending a detected pressure signal to the controller;
the controller is in control connection with the first alarm device and is suitable for controlling the first alarm device to act to give an alarm when the received pressure signal detected by the third pressure detection device is lower than the early warning value.
Further, in order to prevent the gas transmission pipeline from leaking, the automatic gas flow regulating system for the lithium ion battery further comprises a second alarm device; wherein,
the controller is in control connection with the second alarm device and is suitable for controlling the second alarm device to act to give an alarm when the difference between the pressure signal detected by the first pressure detection device and the pressure signal detected by the second pressure detection device is larger than an alarm value.
Further, the controller is a PLC control panel.
After the technical scheme is adopted, the first pressure detection device is connected with the signal input end of the controller and is suitable for sending the detected pressure signal to the controller, the second pressure detection device is connected with the signal input end of the controller and is suitable for sending the detected pressure signal to the controller, and the adjusting device is connected with the air outlet of the air storage container; the controller is in control connection with the adjusting device and is suitable for controlling the adjusting device to act according to the pressure signal detected by the first pressure detection device and the pressure signal detected by the second pressure detection device so as to adjust the opening degree of the gas outlet, and further controlling the gas flow and the gas pressure of the gas outlet for supplying gas outwards, so that the gas flow for supplying gas outwards can be rapidly and timely adjusted, and further the gas pressure is kept stable all the time; the regulation is rapid, hysteresis phenomenon does not occur, manual operation is not needed, and the regulation can be continuously carried out in the whole process of helium filling and convex making, so that the gas flow and the gas pressure can be kept stable for a long time. The gas is helium, and the outlet end of the gas transmission pipeline is connected with the battery cell, so that the convexity generated by helium filling of the battery cell is controlled within an allowable range.
Specifically, when the pressure signal detected by the first pressure detection device and the pressure signal detected by the second pressure detection device are lower than a lower limit value, the controller controls the adjustment device to increase the opening degree; when the pressure signal detected by the first pressure detection device and the pressure signal detected by the second pressure detection device are higher than the upper limit value, the controller controls the adjusting device to reduce the opening degree, so that the gas pressure of the gas outlet is kept stable.
Drawings
Fig. 1 is a schematic structural diagram of an automatic gas flow regulating system for a lithium ion battery according to the present invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
As shown in fig. 1, an automatic regulating system for gas flow rate of a lithium ion battery comprises a gas storage container 1, a gas transmission pipeline 2, a first pressure detection device 3, a second pressure detection device 4, a regulating device 5 and a controller; wherein,
an air outlet suitable for supplying air to the outside is arranged in the air storage container 1;
the inlet end of the gas transmission pipeline 2 is connected with the gas outlet of the gas storage container 1, and the outlet end of the gas transmission pipeline 2 is suitable for supplying gas outwards;
the first pressure detection device 3 is connected with the gas outlet of the gas storage container 1 and is suitable for detecting the gas pressure at the gas outlet, and the first pressure detection device 3 is also connected with the signal input end of the controller and is suitable for sending the detected pressure signal to the controller;
the second pressure detection device 4 is connected to the outlet end of the gas transmission pipeline 2 and is suitable for detecting the gas pressure at the outlet end of the gas transmission pipeline 2, and the second pressure detection device 4 is also connected to the signal input end of the controller and is suitable for sending a detected pressure signal to the controller;
the adjusting device 5 is connected to the air outlet of the air storage container 1;
the controller is in control connection with the adjusting device 5 and is suitable for controlling the adjusting device 5 to act according to the pressure signal detected by the first pressure detecting device 3 and the pressure signal detected by the second pressure detecting device 4 so as to adjust the opening and closing degree of the gas outlet, and further controlling the gas flow and the gas pressure of the gas outlet for supplying gas outwards, so that the gas flow for supplying gas outwards can be adjusted quickly and timely, and further the gas pressure is kept stable all the time; the regulation is rapid, hysteresis phenomenon does not occur, manual operation is not needed, and the regulation can be continuously carried out in the whole process of helium filling and convex making, so that the gas flow and the gas pressure can be kept stable for a long time. In this embodiment, the gas is helium, and the outlet end of the gas transmission pipeline 2 is connected to the battery cell, so that the convexity generated by helium filling of the battery cell is controlled within an allowable range.
Specifically, when the pressure signal detected by the first pressure detection device 3 and the pressure signal detected by the second pressure detection device 4 are lower than a lower limit value, the controller controls the adjustment device 5 to increase the opening degree; when the pressure signal detected by the first pressure detection device 3 and the pressure signal detected by the second pressure detection device 4 are higher than the upper limit value, the controller controls the adjusting device 5 to reduce the opening degree, so that the gas pressure at the gas outlet is kept stable.
As shown in fig. 1, the first pressure detecting means 3 and the second pressure detecting means 4 may be barometers, and the adjusting means 5 may include an automatic adjusting valve; specifically, the specific structures of the air pressure gauge and the automatic regulating valve are the prior art well known to those skilled in the art, and are not described in detail in this embodiment.
As shown in fig. 1, the gas storage container 1 may be a gas cylinder, and a gas outlet pipe 6 is connected to a gas outlet of the gas cylinder;
the first pressure detection device 3 and the adjusting device 5 are respectively connected to the air outlet pipe 6;
the inlet end of the gas transmission pipeline 2 is connected with the gas outlet pipe 6.
As shown in fig. 1, the automatic gas flow rate regulation system for lithium ion batteries may further include a third pressure detection device 7 adapted to detect the gas pressure in the gas storage container 1; wherein,
the third pressure detection device 7, the adjusting device 5 and the first pressure detection device 3 are sequentially arranged along the flowing direction of the gas in the gas outlet pipe 6 and are connected to the gas outlet pipe 6; specifically, the third pressure detection device 7 may be a barometer.
In this embodiment, the automatic gas flow rate adjustment system for a lithium ion battery may further include a first alarm device; wherein,
the third pressure detection device 7 is connected with a signal input end of the controller and is suitable for sending a detected pressure signal to the controller;
the controller is in control connection with the first alarm device and is suitable for controlling the first alarm device to act to give an alarm when the received pressure signal detected by the third pressure detection device 7 is lower than the early warning value so as to remind a worker to replace the new gas storage container 1 in time and further ensure that the gas source is sufficient.
In this embodiment, the automatic gas flow rate adjustment system for a lithium ion battery may further include a second alarm device; wherein,
the controller is in control connection with the second alarm device and is suitable for controlling the second alarm device to act to give an alarm when the difference between the pressure signal detected by the first pressure detection device 3 and the pressure signal detected by the second pressure detection device 4 is greater than an alarm value, so as to remind a worker to check whether a leakage point exists in the gas transmission pipeline 2 and replace the gas transmission pipeline 2 in time; specifically, the first alarm device and the second alarm device may be a visual alarm or an audible alarm, and may specifically be a buzzer or an alarm lamp.
In this embodiment, the controller may be a PLC control board; specifically, the PLC control board includes a judgment module and a feedback module, and the judgment module is configured to judge whether a pressure signal detected by the first pressure detection device 3, a pressure signal detected by the second pressure detection device 4, and a pressure signal detected by the third pressure detection device 7 are within a corresponding predetermined range. The determination logic sequence is sequentially that whether the pressure signal detected by the third pressure detection device 7 is within the corresponding predetermined range is determined, then whether the difference between the pressure signal detected by the first pressure detection device 3 and the pressure signal detected by the second pressure detection device 4 is within the corresponding predetermined range is determined, and then whether the pressure signal detected by the first pressure detection device 3 and the pressure signal detected by the second pressure detection device 4 are within the corresponding predetermined range is determined. The above decision information is transmitted to the feedback module which feeds back the final information to the adjusting means 5, the first alarm means and the second alarm means.
In this embodiment, the specified pressure median value in the gas cylinder is 45KPa, and when the pressure detected by the third pressure detection device 7 is less than 45KPa, the first alarm device acts to send an alarm to remind field production personnel to replace the gas cylinder in time, so as to ensure that the gas source is sufficient;
when the air pressure value detected by the second pressure detection device 4 is lower than the air pressure value detected by the first pressure detection device 3 and the pressure difference is greater than 2KPa, the second alarm device acts to give an alarm to remind production line production staff to check whether the air transmission pipeline 2 is leaked or not;
when the air pressure value detected by the second pressure detection device 4 and the air pressure value detected by the first pressure detection device 3 exceed the range of 43-47 KPa, the controller controls the adjusting device 5 to act to adjust the opening and closing degree of the air outlet, so that the air pressure value detected by the second pressure detection device 4 and the air pressure value detected by the first pressure detection device 3 quickly and accurately return to the range of 43-47 KPa again.
The working principle of the utility model is as follows:
the first pressure detection device 3 is connected with a signal input end of the controller and is suitable for sending a detected pressure signal to the controller, the second pressure detection device 4 is connected with a signal input end of the controller and is suitable for sending a detected pressure signal to the controller, and the adjusting device 5 is connected with an air outlet of the air storage container 1; the controller is in control connection with the adjusting device 5 and is suitable for controlling the adjusting device 5 to act according to the pressure signal detected by the first pressure detecting device 3 and the pressure signal detected by the second pressure detecting device 4 so as to adjust the opening and closing degree of the gas outlet, and further controlling the gas flow and the gas pressure of the gas outlet for supplying gas outwards, so that the gas flow for supplying gas outwards can be adjusted quickly and timely, and further the gas pressure is kept stable all the time; the regulation is rapid, hysteresis phenomenon does not occur, manual operation is not needed, and the regulation can be continuously carried out in the whole process of helium filling and convex making, so that the gas flow and the gas pressure can be kept stable for a long time. The gas is helium, and the outlet end of the gas transmission pipeline 2 is connected with the battery cell, so that the convexity generated by helium filling of the battery cell is controlled within an allowable range.
Specifically, when the pressure signal detected by the first pressure detection device 3 and the pressure signal detected by the second pressure detection device 4 are lower than a lower limit value, the controller controls the adjustment device 5 to increase the opening degree; when the pressure signal detected by the first pressure detection device 3 and the pressure signal detected by the second pressure detection device 4 are higher than the upper limit value, the controller controls the adjusting device 5 to reduce the opening degree, so that the gas pressure at the gas outlet is kept stable.
The above-mentioned embodiments further explain in detail the technical problems, technical solutions and advantages solved by the present invention, and it should be understood that the above only is a specific embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Claims (9)
1. A gas flow automatic regulating system for a lithium ion battery is characterized by comprising a gas storage container (1), a gas transmission pipeline (2), a first pressure detection device (3), a second pressure detection device (4), a regulating device (5) and a controller; wherein,
an air outlet suitable for supplying air to the outside is arranged in the air storage container (1);
the inlet end of the gas transmission pipeline (2) is connected with the gas outlet of the gas storage container (1), and the outlet end of the gas transmission pipeline (2) is suitable for supplying gas outwards;
the first pressure detection device (3) is connected with the air outlet of the air storage container (1) and is suitable for detecting the gas pressure at the air outlet, and the first pressure detection device (3) is also connected with the signal input end of the controller and is suitable for sending a detected pressure signal to the controller;
the second pressure detection device (4) is connected with the outlet end of the gas transmission pipeline (2) and is suitable for detecting the gas pressure at the outlet end of the gas transmission pipeline (2), and the second pressure detection device (4) is also connected with the signal input end of the controller and is suitable for sending the detected pressure signal to the controller;
the adjusting device (5) is connected with the air outlet of the air storage container (1);
the controller is in control connection with the adjusting device (5) and is suitable for controlling the adjusting device (5) to act according to the pressure signal detected by the first pressure detecting device (3) and the pressure signal detected by the second pressure detecting device (4) so as to adjust the opening and closing degree of the air outlet.
2. The automatic gas flow regulating system for lithium ion batteries according to claim 1, characterized in that the first pressure detecting device (3) and/or the second pressure detecting device (4) is a barometer.
3. Automatic gas flow regulation system for lithium-ion batteries according to claim 1, characterized in that the regulation device (5) comprises an automatic regulation valve.
4. The automatic gas flow regulating system for the lithium ion battery as claimed in claim 1, wherein the gas storage container (1) is a gas cylinder, and a gas outlet pipe (6) is connected to a gas outlet of the gas cylinder;
the first pressure detection device (3) and the adjusting device (5) are respectively connected to the air outlet pipe (6);
the inlet end of the gas transmission pipeline (2) is connected with the gas outlet pipe (6).
5. Automatic gas flow regulation system for lithium-ion batteries according to claim 1, characterized in that it further comprises third pressure detection means (7) suitable for detecting the gas pressure in the gas storage container (1).
6. The automatic gas flow regulating system for the lithium ion battery as claimed in claim 5, wherein the gas storage container (1) is a gas cylinder, and a gas outlet pipe (6) is connected to a gas outlet of the gas cylinder;
the third pressure detection device (7), the adjusting device (5) and the first pressure detection device (3) are sequentially arranged along the flowing direction of the gas in the gas outlet pipe (6) and connected to the gas outlet pipe (6).
7. The automatic gas flow regulation system for lithium ion batteries according to claim 5, further comprising a first alarm device; wherein,
the third pressure detection device (7) is connected with a signal input end of the controller and is suitable for sending a detected pressure signal to the controller;
the controller is in control connection with the first alarm device and is suitable for controlling the first alarm device to act to give an alarm when the received pressure signal detected by the third pressure detection device (7) is lower than an early warning value.
8. The automatic gas flow regulation system for lithium ion batteries according to claim 1, further comprising a second alarm device; wherein,
the controller is in control connection with the second alarm device and is suitable for controlling the second alarm device to act to give an alarm when the difference between the pressure signal detected by the first pressure detection device (3) and the pressure signal detected by the second pressure detection device (4) is larger than an alarm value.
9. The automatic gas flow regulation system for lithium ion batteries according to claim 1, wherein the controller is a PLC control board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120515033.5U CN214540543U (en) | 2021-03-11 | 2021-03-11 | Automatic gas flow regulating system for lithium ion battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120515033.5U CN214540543U (en) | 2021-03-11 | 2021-03-11 | Automatic gas flow regulating system for lithium ion battery |
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| CN214540543U true CN214540543U (en) | 2021-10-29 |
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| CN202120515033.5U Active CN214540543U (en) | 2021-03-11 | 2021-03-11 | Automatic gas flow regulating system for lithium ion battery |
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