A reliability verification method for an aviation lithium battery management device

Abstract

The application discloses a reliability verification method for an aviation lithium battery management device, and comprises the following steps: S1, confirming the external environment temperature and selecting a kind of baffle to be used; S2, when the external temperature is high, judging whether the heat generated in the use process of the aviation lithium battery can be quickly dissipated; S3, if the generated heat is greater than the heat dissipation speed, starting an automatic heat dissipation device; S4, when the working performance of the aviation lithium battery is stable after the heat is dissipated, the automatic heat dissipation device is closed; S5, when the external temperature is low, judging whether the baffle of the management device can keep the heat generated in the working process of the aviation lithium battery; S6, collecting verification information and analyzing the working performance data of the aviation lithium battery. Through the setting of the corresponding mechanism of the lithium battery temperature management box, the structure of the temperature management box is simplified, the reliability of the temperature management box is improved, so that the working performance of the lithium battery can be guaranteed, and the service life of the lithium battery is prolonged.

Description

Technical Field

[0001] This invention belongs to the field of lithium battery management technology, and specifically relates to a reliability verification method for aviation lithium battery management equipment. Background Technology

[0002] Currently, the aviation industry urgently needs to extend battery maintenance cycles, reduce the number of disassembly and reassembly operations, and extend emergency power supply time to improve long-duration flight capabilities. Lithium batteries have advantages such as high energy density, long cycle life, light weight, and no heavy metal pollution, which perfectly aligns with the current green requirements for sustainable development, and are receiving particular attention in the aviation field where weight and environmental adaptability are critical.

[0003] Temperature has a significant impact on lithium batteries during operation. Both excessively high and low temperatures can greatly reduce their performance. The optimal operating temperature for lithium batteries is 15℃–40℃. To ensure the performance of lithium batteries, a temperature control box is generally used for temperature regulation. However, existing temperature control boxes are generally complex in structure, have many parts, and have relatively low reliability. Therefore, their reliability needs to be verified to ensure that they do not have a negative impact on the lithium batteries during use and thus guarantee their performance.

[0004] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide a reliability verification method for aviation lithium battery management devices. Summary of the Invention

[0005] The purpose of this invention is to provide a reliability verification method for aviation lithium battery management equipment, so as to solve the problem that the reliability of lithium battery temperature management boxes in the prior art is low, thereby affecting the working performance of lithium batteries.

[0006] To achieve the above objectives, an embodiment of the present invention provides the following technical solution:

[0007] A reliability verification method for an aviation lithium battery management device includes the following steps:

[0008] S1. Confirm the ambient temperature and select the type of partition to use;

[0009] S2. When the outside temperature is high, determine whether the heat generated during the use of aviation lithium batteries can be dissipated quickly, and test the working performance of aviation lithium batteries.

[0010] S3. If the rate of heat generation exceeds the rate of heat dissipation, activate the automatic heat dissipation device and test the performance of the aviation lithium battery.

[0011] S4. After the heat is dissipated and the performance of the aviation lithium battery is stable, the automatic heat dissipation device will be turned off.

[0012] S5. When the outside temperature is low, determine whether the partition of the management equipment can retain the heat generated by the aviation lithium battery during operation.

[0013] S6. Summarize the verification information and analyze the performance data of aviation lithium batteries.

[0014] Furthermore, the management device in S5 includes a temperature management box with a cover plate and a gas collection and heat dissipation box. The gas collection and heat dissipation box has a pair of suction pipes, the other end of which is connected to the temperature management box. The gas collection and heat dissipation box is equipped with a heat dissipation component to quickly dissipate heat from the temperature management box, thereby preventing the lithium battery from overheating and affecting its performance. The gas collection and heat dissipation box contains a triggering mechanism, which includes a support slider. A first contact sensing plate is connected to the support slider, and a second contact sensing plate is provided on one side of the first contact sensing plate.

[0015] Furthermore, the temperature management box is equipped with multiple evenly distributed heat sinks for rapid heat dissipation, improving the heat dissipation efficiency inside the temperature management box, thereby preventing the lithium battery inside the temperature management box from being damaged due to excessive temperature, thus improving the service life of the lithium battery and ensuring its working performance. The temperature management box is also provided with multiple ventilation ports for gas circulation, which facilitates heat dissipation.

[0016] Furthermore, the temperature management box is equipped with multiple limiting uprights for fixing the heat insulation partition plate to prevent it from shaking, and also for supporting the limiting horizontal plate to prevent it from falling off. Several limiting horizontal plates are connected between a pair of limiting uprights to hold the heat conduction partition plate in place and prevent it from shaking or falling off.

[0017] Furthermore, a heat insulation partition is provided between the limiting rod and the temperature management box to block the flow of gas and achieve the effect of heat insulation. This prevents the heat generated by the lithium battery from being lost when the external environment is low, thereby ensuring that the working environment temperature of the lithium battery is not too low and guaranteeing the working performance of the lithium battery.

[0018] A heat-conducting partition plate is provided between the limiting horizontal plate and the temperature management box to quickly conduct heat to the heat sink, thereby improving the heat dissipation efficiency and preventing the working environment of the lithium battery from being too high. A pair of through holes are drilled on the heat-conducting partition plate to facilitate the intake of air by the air intake pipe, thereby improving the heat dissipation efficiency. The through holes are flush with the air intake pipe.

[0019] Furthermore, a metal mesh is cut into the gas collection and heat dissipation box to prevent the shape memory alloy rod from falling off and to avoid obstructing the flow of gas. This ensures that the temperature at the location of the shape memory alloy rod is consistent with the temperature inside the temperature management box, so that when the temperature inside the temperature management box is too high, the temperature of the shape memory alloy rod also rises.

[0020] A control box is installed on the gas collection and heat dissipation box. The control box is electrically connected to the motor, enabling the control box to control the start and stop of the motor. This allows the motor to start in time to dissipate heat when the temperature inside the temperature management box is high, and to stop in time when the temperature inside the temperature management box drops to a suitable temperature, thus avoiding energy waste.

[0021] One of the limiting rods is equipped with a temperature sensor for monitoring the temperature inside the temperature management box. The control box is electrically connected to the temperature sensor, enabling the temperature sensor to send signals to the control box.

[0022] Furthermore, the heat dissipation assembly includes a cylindrical cover for supporting multiple heat dissipation components, thereby supporting the motor and preventing the motor from shaking or falling off.

[0023] The cylindrical cover contains an electric motor that drives the power transmission rod to rotate, which in turn drives the fan blades to rotate, thereby promoting gas flow. Multiple support rods connect the electric motor to the cylindrical cover to support the motor and prevent it from falling off.

[0024] Furthermore, the motor is connected to a power transmission rod, which supports multiple fan blades and drives the fan blades to rotate, thus transmitting power. Multiple evenly distributed fan blades are installed on the power transmission rod to drive the airflow, thereby accelerating heat dissipation and improving heat dissipation efficiency.

[0025] Furthermore, the air collection and heat dissipation box is provided with an L-shaped partition for supporting the support slider and the fixing block, providing sliding space for the support slider and fixing the fixing block to prevent the fixing block from moving. The support slider is slidably connected to the L-shaped partition.

[0026] The L-shaped partition is provided with a fixing block to support the second contact sensing sheet and prevent the second contact sensing sheet from moving. The second contact sensing sheet is fixedly connected to the fixing block.

[0027] Furthermore, a number of shape memory alloy rods are connected to the side of the support slider away from the first contact sensor. The shape memory alloy rods will gradually elongate when the temperature rises, so that when the temperature inside the temperature management box is too high, the shape memory alloy rods will push the support slider to move. A return spring is connected between the support slider and the air collection and heat dissipation box to pull the support slider back, thereby achieving the purpose of separating the first contact sensor and the second contact sensor.

[0028] Compared with the prior art, the present invention has the following advantages:

[0029] This invention simplifies the structure of the lithium battery temperature management box and improves its reliability by setting up corresponding mechanisms, thus avoiding any adverse effects on the lithium battery and ensuring its working performance and lifespan. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a perspective view of the management device according to one embodiment of this application;

[0032] Figure 2 This is a partial structural schematic diagram of the management device in one embodiment of this application;

[0033] Figure 3 for Figure 2 Schematic diagram of the structure at point A in the middle;

[0034] Figure 4 This is a cross-sectional view of the management device according to one embodiment of this application;

[0035] Figure 5 for Figure 4 Schematic diagram of the structure at point B;

[0036] Figure 6 This is a schematic diagram of the structure of two types of partition plates in one embodiment of this application;

[0037] Figure 7 This is a schematic diagram of the structure of the air-collecting heat dissipation box in one embodiment of this application;

[0038] Figure 8 This is a partial cross-sectional view of the triggering mechanism in one embodiment of this application.

[0039] In the diagram: 1. Temperature management box; 101. Cover plate; 102. Heat sink; 103. Ventilation port; 104. Limiting upright; 105. Limiting horizontal plate; 106. Heat insulation partition plate; 107. Heat conduction partition plate; 108. Through hole; 2. Air collection and heat dissipation box; 201. Intake pipe; 202. Heat dissipation component; 203. Metal mesh; 204. Control box; 205. Temperature sensor; 206. Cylindrical cover; 207. Motor; 208. Support rod; 209. Power transmission rod; 210. Fan blade; 3. Triggering mechanism; 301. Support slider; 302. First contact sensor; 303. Second contact sensor; 304. L-shaped partition; 305. Fixing block; 306. Memory alloy rod; 307. Return spring. Detailed Implementation

[0040] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the scope of protection of the present invention.

[0041] This invention discloses a reliability verification method for aviation lithium battery management devices, comprising the following steps:

[0042] S1. Confirm the ambient temperature and select the type of partition to use;

[0043] S2. When the outside temperature is high, determine whether the heat generated during the use of aviation lithium batteries can be dissipated quickly, and test the working performance of aviation lithium batteries.

[0044] S3. If the rate of heat generation exceeds the rate of heat dissipation, activate the automatic heat dissipation device and test the performance of the aviation lithium battery.

[0045] S4. After the heat is dissipated and the performance of the aviation lithium battery is stable, the automatic heat dissipation device will be turned off.

[0046] S5. When the outside temperature is low, determine whether the partition of the management equipment can retain the heat generated by the aviation lithium battery during operation.

[0047] S6. Summarize the verification information and analyze the performance data of aviation lithium batteries.

[0048] like Figures 1-8 As shown, an aviation lithium battery management device includes a temperature management box 1, which has a cover plate 101 for sealing the temperature management box 1 to prevent the lithium battery from falling or shaking, thereby improving the service life of the lithium battery.

[0049] Preferably, the cover plate 101 is fixed to the temperature management box 1 by bolts, which facilitates disassembly and installation and makes it easy for users to operate.

[0050] like Figures 1-2 As shown, the temperature management box 1 is equipped with multiple evenly distributed heat sinks 102 for rapid heat dissipation, improving the heat dissipation efficiency inside the temperature management box 1, thereby preventing the lithium battery inside the temperature management box 1 from being damaged due to excessive temperature, thus improving the service life of the lithium battery and ensuring the working performance of the lithium battery. The temperature management box 1 is also provided with multiple ventilation ports 103 for gas circulation, which facilitates heat dissipation.

[0051] like Figures 1-3 As shown, the temperature management box 1 is equipped with multiple limiting rods 104 to fix the heat insulation partition plate 106, prevent the heat insulation partition plate 106 from shaking, and also support the limiting horizontal plate 105 to prevent the limiting horizontal plate 105 from falling off. Several limiting horizontal plates 105 are connected between a pair of limiting rods 104 to lock the heat conduction partition plate 107 and prevent the heat conduction partition plate 107 from shaking or falling off.

[0052] like Figures 1-6 As shown, a heat insulation partition plate 106 is provided between the limiting rod 104 and the temperature management box 1 to block the flow of gas and achieve the effect of heat insulation. This prevents the heat generated by the lithium battery from being lost when the external environment is low, thus ensuring that the working environment temperature of the lithium battery is not too low and guaranteeing the working performance of the lithium battery.

[0053] like Figure 6 As shown, a heat-conducting partition plate 107 is provided between the limiting horizontal plate 105 and the temperature management box 1 for quickly conducting heat to the heat sink 102, thereby improving the heat dissipation efficiency and preventing the working environment of the lithium battery from being too high. A pair of through holes 108 are drilled on the heat-conducting partition plate 107 to facilitate the intake of air by the intake pipe 201, thereby improving the heat dissipation efficiency. The through holes 108 are flush with the intake pipe 201.

[0054] like Figures 1-5 As shown, a gas collecting and heat dissipation box 2 is installed on the temperature management box 1 to collect and discharge the gas drawn in by the suction pipe 201. The gas collecting and heat dissipation box 2 is provided with a pair of suction pipes 201 to connect the gas collecting and heat dissipation box 2 and the temperature management box 1, thereby facilitating the flow of gas. The other end of the suction pipe 201 is connected to the temperature management box 1. A heat dissipation component 202 is installed on the gas collecting and heat dissipation box 2 to quickly dissipate the heat in the temperature management box 1, thereby preventing the lithium battery temperature from being too high and affecting its working performance.

[0055] like Figure 7As shown, a metal mesh 203 is cut into the gas collection and heat dissipation box 2 to prevent the shape memory alloy rod 306 from falling off and to prevent obstruction of gas flow. This ensures that the temperature at the location of the shape memory alloy rod 306 is consistent with the temperature inside the temperature management box 1, so that when the temperature inside the temperature management box 1 is too high, the temperature of the shape memory alloy rod 306 also rises.

[0056] like Figures 1-7 As shown, a control box 204 is installed on the air collection and heat dissipation box 2. The control box 204 is electrically connected to the motor 207, so that the control box 204 can control the start and stop of the motor 207. This allows the motor 207 to start in time to dissipate heat when the temperature inside the temperature management box 1 is high, and the motor 207 to stop in time when the temperature inside the temperature management box 1 drops to a suitable temperature, thus avoiding energy waste.

[0057] Specifically, a temperature sensor 205 is installed on one of the limit rods 104 to monitor the temperature inside the temperature management box 1. The control box 204 is electrically connected to the temperature sensor 205 so that the temperature sensor 205 can send a signal to the control box 204.

[0058] like Figure 5 As shown, the heat dissipation component 202 includes a cylindrical cover 206 for supporting multiple heat dissipation components 202, thereby supporting the motor 207 and preventing the motor 207 from shaking or falling off.

[0059] like Figure 5 As shown, a motor 207 is installed inside the cylindrical cover 206 to drive the power transmission rod 209 to rotate, so that the power transmission rod 209 can drive the fan blade 210 to rotate, thereby achieving the purpose of driving the gas flow. Multiple support rods 208 are connected between the motor 207 and the cylindrical cover 206 to support the motor 207 and prevent the motor 207 from falling off.

[0060] like Figure 5 As shown, a power transmission rod 209 is connected to the motor 207 to support multiple fan blades 210 and drive the fan blades 210 to rotate, thus transmitting power. Multiple evenly distributed fan blades 210 are installed on the power transmission rod 209 to drive the air flow, thereby accelerating heat dissipation and improving heat dissipation efficiency.

[0061] like Figures 1-8As shown, the air collection and heat dissipation box 2 is equipped with a triggering mechanism 3. The triggering mechanism 3 includes a support slider 301, which supports the first contact sensing plate 302 and drives the first contact sensing plate 302 to move, so that the first contact sensing plate 302 can contact the second contact sensing plate 303. The first contact sensing plate 302 is connected to the support slider 301, and the second contact sensing plate 303 is provided on one side of the first contact sensing plate 302. When the first contact sensing plate 302 contacts the second contact sensing plate 303, the control box 204 will promptly control the motor 207 to start for rapid heat dissipation. When the first contact sensing plate 302 and the second contact sensing plate 303 lose contact, the control box 204 will control the motor 207 to shut down, thereby avoiding energy waste.

[0062] like Figure 8 As shown, the air collection and heat dissipation box 2 is provided with an L-shaped partition 304, which is used to support the support slider 301 and the fixing block 305, providing sliding space for the support slider 301 and fixing the fixing block 305 to prevent the fixing block 305 from moving. The support slider 301 is slidably connected to the L-shaped partition 304.

[0063] The L-shaped partition 304 is provided with a fixing block 305 to support the second contact sensing piece 303 and prevent the second contact sensing piece 303 from moving. The second contact sensing piece 303 is fixedly connected to the fixing block 305.

[0064] like Figure 8 As shown, a number of shape memory alloy rods 306 are connected to the side of the support slider 301 away from the first contact sensor 302. When the temperature of the shape memory alloy rods 306 rises, they will gradually elongate. When the temperature inside the temperature management box 1 is too high, the shape memory alloy rods 306 will push the support slider 301 to move. A return spring 307 is connected between the support slider 301 and the air collection and heat dissipation box 2 to pull the support slider 301 back, thereby achieving the purpose of separating the first contact sensor 302 and the second contact sensor 303.

[0065] In practical use, first determine the external environment during the test. When the ambient temperature is high, the staff removes the heat insulation partition 106, then installs the heat conduction partition 107 inside the temperature management box 1, and then places the lithium battery inside the temperature management box 1. The temperature management box 1 is then sealed with the cover plate 101. After the lithium battery has been used for a period of time, it will generate heat, which will dissipate outward through the ventilation port 103 and will be transferred to the heat sink 102 through the heat conduction partition 107 to improve the heat dissipation efficiency. When the dissipation rate is lower than the rate at which the lithium battery generates heat, the temperature inside the temperature management box 1 will gradually rise, thereby causing the temperature of the heat conduction partition 107 to gradually rise.

[0066] At this time, heat will be transferred through the metal mesh 203 to the space between the L-shaped partition 304 and the gas collection and heat dissipation box 2, thereby increasing the temperature of the shape memory alloy rod 306. This causes the shape memory alloy rod 306 to gradually extend and push the support slider 301 to move. The support slider 301 will drive the first contact sensor 302 to contact the second contact sensor 303, causing the control box 204 to control the motor 207 to start. After the motor 207 starts, it will drive the power transmission rod 209 and the fan blade 210 to rotate, thereby driving the gas flow. This creates a negative pressure in the suction pipe 201 to draw out the gas in the temperature management box 1. The gas flow will also drive the heat flow, thereby achieving the heat dissipation effect.

[0067] When the temperature inside the temperature management box 1 drops, the temperature of the heat-conducting partition plate 107 also gradually decreases, so the shape memory alloy rod 306 will gradually shrink. At this time, the reset spring 307 will pull the support slider 301 back, causing the first contact sensing plate 302 to separate from the second contact sensing plate 303. The control box 204 will also control the motor 207 to stop working, so that the fan blade 210 will no longer rotate. When the ambient temperature is low during testing, the staff will remove the heat-conducting partition plate 107 and then install the heat insulation partition plate 106 inside the temperature management box 1. The heat insulation partition plate 106 has the function of sealing the ventilation port 103 and separating the heat sink 102, and also has the function of heat insulation, so that the heat generated by the lithium battery during operation will not be dissipated, thereby ensuring that the temperature inside the temperature management box 1 will not be too low, and thus the working performance of the lithium battery will not be reduced.

[0068] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0069] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A reliability verification method for an aviation lithium battery management device, the management device comprising a temperature management box, a cover plate on the temperature management box, a gas collecting and heat dissipation box mounted on the temperature management box, a pair of air intake pipes on the gas collecting and heat dissipation box, the other end of the air intake pipes being connected to the temperature management box, a heat dissipation assembly mounted on the gas collecting and heat dissipation box, a triggering mechanism inside the gas collecting and heat dissipation box, the triggering mechanism comprising a support slider, a first contact sensing plate connected to the support slider, a second contact sensing plate being provided on one side of the first contact sensing plate; a plurality of evenly distributed heat dissipation fins mounted on the temperature management box, a plurality of ventilation ports drilled in the temperature management box; a plurality of limiting uprights inside the temperature management box, a plurality of limiting horizontal plates connected between a pair of limiting uprights; a heat insulation partition plate between the limiting uprights and the temperature management box, a heat-conducting partition plate between the limiting horizontal plates and the temperature management box, a pair of through holes drilled in the heat-conducting partition plate, the through holes being flush with the air intake pipes, comprising the following steps: S1. Confirm the ambient temperature and select the type of partition to use; S2. When the outside temperature is high, determine whether the heat generated during the use of aviation lithium batteries can be dissipated quickly, and test the working performance of aviation lithium batteries. In practical use, first determine the external environment during the test. When the ambient temperature is high, the staff removes the heat insulation partition (106), then installs the heat conduction partition (107) in the temperature management box (1), and then places the lithium battery in the temperature management box (1). The temperature management box (1) is then sealed with a cover plate (101). After the lithium battery has been used for a period of time, it will generate heat, which will dissipate outward through the ventilation port (103) and be transferred to the heat sink (102) through the heat conduction partition (107) to improve the heat dissipation efficiency. When the dissipation rate is lower than the rate at which the lithium battery generates heat, the temperature inside the temperature management box (1) will gradually increase, thereby causing the temperature of the heat conduction partition (107) to gradually increase. S3. If the rate of heat generation exceeds the rate of heat dissipation, activate the automatic heat dissipation device and test the performance of the aviation lithium battery. S4. After the heat is dissipated and the performance of the aviation lithium battery is stable, the automatic heat dissipation device will be turned off. S5. When the outside temperature is low, determine whether the partition of the management equipment can retain the heat generated by the aviation lithium battery during operation. When the ambient temperature is low during testing, the staff removes the heat-conducting partition plate (107) and then installs the heat insulation partition plate (106) inside the temperature management box (1). The heat insulation partition plate (106) has the function of blocking the ventilation port (103) and separating the heat sink (102), and also has the function of heat insulation, so that the heat generated by the lithium battery during operation will not be dissipated, thereby ensuring that the temperature inside the temperature management box (1) will not be too low, and thus the working performance of the lithium battery will not be reduced. S6. Summarize the verification information and analyze the performance data of aviation lithium batteries.

2. The reliability verification method for an aviation lithium battery management device according to claim 1, characterized in that, A metal mesh is cut into the air-collecting and heat-dissipating box, and a control box is installed on the air-collecting and heat-dissipating box. A temperature sensor is installed on one of the limiting rods, and the control box is electrically connected to the temperature sensor.

3. The reliability verification method for an aviation lithium battery management device according to claim 1, characterized in that, The heat dissipation assembly includes a cylindrical cover, inside which is a motor, and multiple support rods connect the motor to the cylindrical cover.

4. The reliability verification method for an aviation lithium battery management device according to claim 3, characterized in that, The motor is connected to a power transmission rod, and multiple evenly distributed fan blades are installed on the power transmission rod.

5. The reliability verification method for an aviation lithium battery management device according to claim 1, characterized in that, The air collection and heat dissipation box is equipped with an L-shaped partition, the supporting slider is slidably connected to the L-shaped partition, the L-shaped partition is equipped with a fixing block, and the second contact sensing piece is fixedly connected to the fixing block.

6. The reliability verification method for an aviation lithium battery management device according to claim 1, characterized in that, The side of the support slider away from the first contact sensor is connected to several shape memory alloy rods, and a return spring is connected between the support slider and the air collection and heat dissipation box.

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