Lead-acid battery with real-time monitoring of its own parameters

Abstract

The present application relates to the technical field of monitoring control device and battery, and particularly relates to a lead-acid battery with real-time monitoring of its own parameters. The lead-acid battery comprises a body of the battery and a parameter monitoring module installed in the body and electrically connected with a battery cover, the parameter monitoring module is an integrated structure, comprising a host cabin in the middle, the host cabin is in a strip shape, four positioning plates are arranged along the long side of the host cabin, and the host cabin is transversely clamped on the bottom of the positive and negative group bus bars of the upper part of the body through the positioning plates; the host cabin is provided with a power supply structure and a communication interface, the communication interface is connected with an interface hole on the battery cover; the battery cover is provided with an arc-shaped structure, a sealing layer is added on the top and inside of the reserved interface hole, the sealing performance is maintained, and the corrosion resistance is improved; the parameter monitoring module provides a brand-new structure, the integrated structure is more compact, positioning plates are installed on the host cabin, the stability of the system is improved, and the application occasions are wide.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of monitoring control devices, and particularly relates to a lead-acid storage battery with real-time monitoring of its own parameters. BACKGROUND

[0002] A lead-acid storage battery parameter real-time online monitoring device is disclosed in Chinese patent ZL202010455263.7, which is mainly used for monitoring the performance and state of the storage battery by monitoring parameters such as storage battery voltage, density, temperature, liquid level, etc., so as to master the charging conversion stage (conversion level) mode and the charging termination timing, and thus master the state of the storage battery comprehensively to arrange the subsequent maintenance plan. The existing mode is mainly a plug-in type of post installation, which causes the storage battery pack and the monitoring device to be installed out of sync, and often requires the installation of the monitoring device after the installation and testing of the storage battery pack are completed, which requires the external installation cable or the connecting copper bar of the storage battery to be disassembled twice, thereby bringing negative experience to the actual use of the user. SUMMARY

[0003] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide a lead-acid storage battery with real-time monitoring of its own parameters, which is designed to have a mutually coordinated storage battery cover and parameter monitoring module to improve the sealing effect and the monitoring stability.

[0004] The built-in parameter monitoring module in the storage battery can better realize the self-checking of parameters such as voltage, density, temperature and liquid level, thereby avoiding the problem of affecting the endurance and discharge capacity of the storage battery pack.

[0005] The technical scheme of the present application is as follows:

[0006] A lead-acid storage battery with real-time monitoring of its own parameters comprises a body of the storage battery and a parameter monitoring module installed inside the body and electrically connected with a storage battery cover, wherein:

[0007] The storage battery cover adopts an upper arch structure with concave sides and a convex middle part, wherein the two sides have concave groove holes I matched with the pole columns of the body, and the middle part has a liquid injection cover matched with groove hole II; an interface hole is arranged on the storage battery cover, the top of the interface hole is made of transparent acid-resistant material, the inside of the interface hole is connected with a communication interface, and a sealing material is used to seal the joint part;

[0008] The parameter monitoring module is an integrated structure, comprising a main cabin in the middle part, the main cabin is in a strip shape, four positioning plates are arranged on the long side of the main cabin, the main cabin is transversely clamped on the bottom of the positive and negative pole group bus bars on the upper part of the body through the positioning plates, a power supply structure and a communication interface are arranged on one side of the long side of the main cabin, the communication interface is connected with the interface hole on the battery cover, a temperature sensor is arranged on one side of the long side of the main cabin, and a liquid level sensor and a density sensor are arranged on the middle part of the long side of the main cabin.

[0009] The processor is arranged in the main cabin, the processor processes the monitoring data of the voltage, density, temperature and liquid level of the body, and the monitoring data is packaged and communicated with external equipment through the communication interface.

[0010] As a further description of the application, the battery body is provided with a pole, a positive and negative plate, a separator, an electrolyte, a battery tank and a battery tank, the pole is welded with the positive and negative plate in sequence, the separator is arranged in the positive and negative plate, the fixing is completed to form a battery pole group, the parameter monitoring module is transversely clamped on the bottom of the positive and negative pole group bus bars through the positioning plate, the power supply structure of the parameter monitoring module is welded with the corresponding positive and negative pole group bus bars after being installed in place, then the communication interface of the parameter monitoring module is installed in place with the corresponding interface of the battery cover part, and acid-resistant sealant is used for protection, the battery cover and the battery tank are processed in one body, and the production of the battery of the application is completed.

[0011] As a further description of the application, the interface hole on the battery cover is in a closed state from the factory to the delivery of the customer before the CAN line is installed; when the CAN line is installed, the top of the interface hole is removed, and the communication interface and the battery cover continue to maintain the sealing performance after the CAN line is connected, so that the corrosion resistance is improved.

[0012] As a further description of the application, the parameter monitoring module adopts a soft shutdown energy-saving setting, when the interface hole on the upper part of the battery cover is not connected with the CAN line for more than 30 minutes, the parameter monitoring module enters a soft shutdown mode, the monitoring of the voltage, density, temperature and liquid level of the battery is stopped in the soft shutdown mode, only the basic function of maintaining work is run, and the energy consumption in the soft shutdown mode is lower than 0.05W; when the interface hole is connected with the CAN line within 10s, the parameter monitoring module is activated to monitor the voltage, density, temperature and liquid level of the battery in real time.

[0013] As a further description of the application, the communication interface of the parameter monitoring module adopts a CAN2.0B special interface, and an LED indicator for indicating the abnormal state of the battery is arranged on the battery cover.

[0014] As a further illustration of the application, the power supply structure of the parameter monitoring module adopts a corrosion-resistant material with high conductivity, and according to the material properties, a cylindrical hollow with a diameter of φ0mm-φ8mm is arranged at both ends to fix the positive and negative poles of the battery, and also serves as a voltage collection line.

[0015] As a further illustration of the application, the density sensor of the parameter monitoring module is uniformly provided with a plurality of through holes along the pipe wall, and the density sensor is provided with electronic devices for detecting the density of the electrolyte, and the density sensor is coated with an electrolyte exchange film with a gap structure of 10-1000 meshes to block the suspended matter in the electrolyte from entering the working area of the density sensor.

[0016] As a further illustration of the application, the liquid level sensor of the parameter monitoring module is provided with electronic devices for detecting the liquid level of the electrolyte at the bottom of the density sensor, and a stand pipe is arranged above the density sensor, and the stand pipe is provided with a plurality of through holes and an open structure at the top; the through holes arranged on the stand pipe keep the liquid level of the electrolyte inside and outside the stand pipe consistent and balance the air pressure, and when the liquid level of the electrolyte fluctuates or fluctuates, the stand pipe has a certain buffering effect on the fluctuating or fluctuating liquid level of the electrolyte, improving the accuracy of the measurement of the liquid level of the electrolyte.

[0017] As a further illustration of the application, the positioning plate of the parameter monitoring module is a wing-shaped structure, and the size thereof matches the position of the bus bar of the positive and negative poles, and is installed at the lower part of the bus bar of the positive and negative poles.

[0018] As a further illustration of the application, the parameter monitoring module has the functions of self-checking the voltage, density, temperature and liquid level of the battery, and the measurement accuracy of the voltage is ±0.001V, the measurement accuracy of the density is ±0.001g / cm 3 , the measurement accuracy of the temperature is ±0.01℃, and the measurement accuracy of the liquid level is ±0.1mm, and the battery cover is provided with an LED indicator, and when abnormal battery data is monitored, the red light is on, and the fault is eliminated in time.

[0019] Compared with the prior art, the application has the following beneficial effects:

[0020] The battery cover adds a communication interface which is connected with the built-in parameter monitoring module under the premise of reserving the original installation interface with the pole and the liquid injection cover. The communication interface is provided with a sealing layer on the top and inside of the interface hole, so that the communication interface and the battery cover still maintain the sealing performance after the CAN line is connected after delivery to the customer, and the corrosion resistance is improved. The parameter monitoring module provides a new structure, and the integrated structure is more compact. The positioning plate is installed on the host cabin to improve the stability of the system. The power supply structure of the parameter monitoring module directly takes power inside, and the structure is more compact and small. The existing battery can be directly replaced for use. The battery is applied to scenes and working places which have real-time monitoring requirements for battery parameters (such as unmanned island reef energy station, communication base station, standby power supply of power station, electric transport vehicle, electric sightseeing vehicle, electric sightseeing ship, ship and national defense field), and the battery can realize real-time monitoring of voltage, density, temperature and liquid level. The built-in parameter monitoring module has a soft shutdown function, so that the energy consumption of the parameter monitoring module is lower than 0.05W. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0022] Figure 1 is a vertical sectional view of the present application.

[0023] Figure 2 is a horizontal sectional view of the present application.

[0024] Figure 3 is a top view of the battery cover.

[0025] Figure 4 is a front view of the battery cover.

[0026] Figure 5 is a left view of the battery cover.

[0027] Figure 6 is a top view of the parameter monitoring module.

[0028] Figure 7 is a front view of the parameter monitoring module.

[0029] Figure 8 is a left view of the parameter monitoring module.

[0030] In the figure: 1, the body; 2, battery cover; 21, slot hole I; 22, slot hole II; 3, parameter monitoring module; 31, communication interface; 32, temperature sensor; 33, host cabin; 34, power supply structure; 35, density sensor; 36, liquid level sensor; 37, positioning plate; 4, pole; 5, liquid injection cover; 6, interface hole. DETAILED DESCRIPTION

[0031] In order to make the person skilled in the art better understand the technical solutions in the present application, 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, not all. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0032] Embodiment 1

[0033] As shown in Figure 1 and Figure 2 , the present embodiment provides a lead-acid battery with real-time monitoring of its own parameters, comprising the body 1 of the battery and the parameter monitoring module 3 installed inside the body 1 and electrically connected with the battery cover 2, wherein:

[0034] As shown in Figures 3 to 5 , the battery cover 2 adopts an upper arch structure with concave sides and convex middle, wherein the two sides have a concave slot hole I 21 matched with the pole 4 of the body 1, and the middle has a liquid injection cover 5 matched with the slot hole II 22; the battery cover is provided with an interface hole 6, the top of the interface hole 6 is made of transparent acid-resistant material, the inside of the interface hole 6 is connected with the communication interface 31, and the joint part is sealed with sealing material; the liquid injection cover 5 is also known as water replenishment cover, exhaust cover or exhaust cap, etc.

[0035] As shown in Figures 6 to 8 , the parameter monitoring module 3 is an integrated structure, including the host cabin 33 in the middle, which is placed in a long strip shape, and four positioning plates 37 are arranged along the long edge of the host cabin 33, and the host cabin 33 is transversely clamped on the bottom of the positive and negative pole bus bar of the upper part of the body 1 through the positioning plates 37; the power supply structure 34 and the communication interface 31 are arranged along one side of the long edge of the host cabin 33, the communication interface 31 is connected with the interface hole 6 on the battery cover 2; the temperature sensor 32 is arranged along one side of the long edge of the host cabin 33, and the liquid level sensor 36 and the density sensor 35 are arranged along the middle of the long edge of the host cabin 33;

[0036] The host cabin 33 is internally provided with a processor which processes the voltage, density, temperature and liquid level monitoring data of the body 1, and the monitoring data is packaged and communicated with external devices through the communication interface 31. Preferably, the temperature sensor 32 is arranged on the side of the host cabin 33 of the parameter monitoring module 3.

[0037] Preferably, the host cabin 33 is the main operation part of the parameter monitoring module 3, and the PCB board internally placed therein is connected with the power supply structure 34, the temperature sensor 32, the density sensor 35, the liquid level sensor 36 and the communication interface 31 of the parameter monitoring module 3, and has the ability to monitor and operate the voltage density, electrolyte temperature and liquid level, and the monitoring data is packaged and communicated with external devices through the communication interface.

[0038] Preferably, the power supply structure 34 is made of lead-based alloy, carbon and other corrosion-resistant materials with high conductivity, and has good corrosion resistance in electrolyte. According to the material characteristics, a cylindrical hollow with a diameter of φ0mm-φ8mm is arranged at both ends, which is convenient for welding and installation with the positive and negative bus bars of the battery.

[0039] The density sensor 35 of the parameter monitoring module 3 is uniformly provided with a plurality of through holes along the pipe wall, and the density sensor 35 is provided with electronic devices for detecting the density of the electrolyte. The density sensor 35 is coated with an electrolyte exchange membrane with a 10-mesh to 1000-mesh gap structure to prevent suspended matter in the electrolyte from entering the working area of the density sensor 35.

[0040] Preferably, the liquid level sensor 36 of the parameter monitoring module 3 is provided with electronic devices for detecting the liquid level of the electrolyte along the bottom of the density sensor 35. A stand pipe is arranged above the density sensor 35 opposite to the liquid level sensor 36, and the stand pipe is provided with a plurality of through holes and an open structure at the top. The through holes arranged on the stand pipe keep the electrolyte liquid level inside and outside the stand pipe consistent and balance the air pressure. When the electrolyte liquid level fluctuates, the stand pipe plays a certain buffering role on the fluctuating liquid level of the electrolyte, improving the accuracy of the electrolyte liquid level measurement.

[0041] Preferably, the positioning plate 37 of the parameter monitoring module 3 is in a wing-shaped structure, the size of which matches the position of the pole bus bar of the battery, and is installed at the lower part of the positive and negative bus bars.

[0042] Working principle:

[0043] The battery monomer not only has the electrical performance characteristics (including voltage, internal resistance, discharge current, discharge capacity, terminal voltage, and other electrical characteristic design indexes) possessed by the battery itself, but also has a parameter monitoring module 3 inside, which has the functions of self-checking the battery voltage, electrolyte density, electrolyte temperature, and liquid level. The parameter monitoring module 3 can be adjusted in function according to customer needs, and can be selected from one to four functions, which meets the needs of different customers. The battery cover 2 part is provided with an LED indicator light, which is red when an abnormal parameter is monitored, so that the user can quickly locate the faulty battery through the light, and the fault can be quickly eliminated. The present application can directly replace the existing battery for use, and is applied to the scenes and working places (such as unmanned island reef energy station, communication base station, standby power supply of power station, electric transport vehicle, electric sightseeing vehicle, electric sightseeing boat, ship, and national defense field) that have real-time monitoring needs for battery parameters. The battery can realize real-time monitoring of its own voltage, density, temperature, and liquid level, and the built-in parameter monitoring module has a soft shutdown function, so that the energy consumption of the parameter monitoring module is lower than 0.05W.

[0044] Example 2

[0045] On the basis of example 1, the battery body 1 is further provided with a pole 4, positive and negative plates, a separator, electrolyte, a battery tank, and a battery groove. The pole is welded with the positive and negative plates in sequence, the separator is placed in the positive and negative plates, the fixing is completed to form a battery pole group, the parameter monitoring module is transversely clamped at the bottom of the positive and negative pole bus through a positioning plate, and the power supply structure of the parameter monitoring module is fixed and integrated with the corresponding positive and negative pole bus after installation.

[0046] The parameter monitoring module 3 is composed of a parameter monitoring module 3 communication interface 31, a temperature sensor 32, a parameter monitoring module 3 host cabin 33, a parameter monitoring module 3 power supply structure 34, a density sensor 35, a liquid level sensor 36, and a positioning plate 37. The body 1 adopts an integrated design, the main electronic components adopt a fully sealed acid-resistant design, the battery voltage, density, temperature, and liquid level can be monitored in real time online, the parameter monitoring module 3 power supply structure 34 adopts lead-based alloy, carbon, and other corrosion-resistant materials with high conductivity, the pole group (the pole, the positive plate, and the negative plate are welded together, and the separator is placed in the positive and negative plates) is welded and installed in the battery tank, the parameter monitoring module 3 is clamped at the bottom of the positive and negative pole bus through the positioning plate, the power supply structure 34 of the parameter monitoring module 3 is fixed and integrated with the corresponding positive and negative pole bus after installation, then the communication interface of the parameter monitoring module 3 is installed in place with the corresponding interface of the battery cover part, and acid-resistant sealant is used for protection, the battery cover and the battery tank are processed in one body, and the production of the battery of the present application is completed.

[0047] Example 3

[0048] On the basis of embodiment 2, the interface hole 6 is reserved on the upper part of the battery cover 2, the upper part of the battery cover 2 is a cavity structure, and the lower part of the battery cover 2 is an open protruding structure; the lower structure and the information exchange interface of the parameter monitoring module 3 are combined by ultrasonic welding or hot melt welding, which blocks the leakage of the electrolyte in the battery, and improves the sealing performance of the communication interface 31. After the battery is shipped, the communication interface 31 reserved on the battery cover 2 is a closed structure before the CAN line is installed for the customer; when the CAN line is installed, the top of the communication interface 31 is removed, and the interface can continue to maintain the sealing performance after the CAN line is connected, and the corrosion resistance is improved.

[0049] Embodiment 4

[0050] On the basis of embodiment 3, the parameter monitoring module 3 adopts a soft shutdown energy-saving setting, when the interface hole 6 on the upper part of the battery cover 2 is not connected to the CAN line for more than 30 minutes, the parameter monitoring module 3 enters a soft shutdown mode, in which the monitoring of the voltage, density, temperature and liquid level of the battery is stopped, only the basic functions of maintaining operation are run, and the energy consumption in the soft shutdown mode is less than 0.05W; when the interface hole 6 is connected to the CAN line within 10s, the parameter monitoring module 3 is activated to monitor the voltage, density, temperature and liquid level of the battery in real time.

[0051] Embodiment 5

[0052] On the basis of embodiment 4, the parameter monitoring module 3 adopts a CAN2.0B special interface, and the communication interface 31 on the battery cover 2 is provided with an LED indicator lamp for indicating the abnormal state of the battery.

[0053] The same specification of battery monomer is used to form a battery pack, the electrical connection mode is the same as the current battery connection mode; the battery monomer is composed of a positive plate, a separator, a negative plate, a pole, an electrolyte (dilute sulfuric acid aqueous solution), a battery tank, a battery cover 2 and a parameter monitoring module 3, the parameter monitoring module 3 transmits the monitored data to a human-computer interaction device through an information exchange interface (communication interface 31) connected to a CAN line, the CAN line adopts a CAN2.0B communication protocol, and a battery parameter collection software (program) is installed in the human-computer interaction device, that is, the battery monomer converts the measured parameters into an analog signal frame and transmits it to the information interaction device through the CAN, and the information interaction device displays the analog signal frame after identification.

[0054] The battery monomer not only has its own electrical performance characteristics (including voltage, internal resistance, discharge current, discharge capacity, end voltage and other electrical characteristic design indexes), but also is provided with a parameter monitoring module 3 in the interior, has the functions of self-checking battery voltage, density, temperature and liquid level, the measurement accuracy of voltage can reach ±0.001V; the density measurement accuracy ±0.001g / cm 3 ; the temperature measurement accuracy ±0.01℃; the liquid level measurement accuracy ±0.1mm; the battery cover 2 part is provided with an LED indicating lamp, when monitoring that certain battery data is abnormal, the red light is on, the user is convenient through the light to quickly locate the fault battery, is convenient for timely troubleshooting. The rated voltage of the battery monomer is 2V, the discharge capacity is 10Ah~20000Ah, the electrolyte liquid level is 10mm~150mm, the battery use temperature is -20℃~70℃, the electrolyte density is 1.20 g / cm 3 ~1.40 g / cm 3 ; the data measured by the battery monomer is transmitted to the man-machine interaction equipment through the communication interface 31 and the CAN line.

[0055] Although the present application has been described in detail with reference to the preferred embodiments, the present application is not limited to the preferred embodiments. Those skilled in the art can make various equivalent modifications or replacements to the embodiments of the present application without departing from the spirit and essence of the present application, and these modifications or replacements should be within the scope of the present application. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, and these changes or replacements should be within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A lead-acid storage battery with real-time monitoring of its own parameters, comprising a body (1) of the storage battery and a parameter monitoring module (3) installed inside the body (1) and electrically connected with a storage battery cover (2), characterized in that: the storage battery cover (2) has an upper arch structure with concave grooves (21) on both sides and a convex middle part, wherein the concave grooves (21) on both sides are adapted to the pole posts (4) of the body (1), and the middle part has a groove (22) adapted to a liquid injection cover (5); the storage battery cover (2) is provided with an interface hole (6) on the top, the top of the interface hole (6) is made of transparent acid-resistant material, the inside of the interface hole (6) is connected with a communication interface (31), and a sealing material is used to seal the joint part; the parameter monitoring module (3) is an integrated structure, comprising a main cabin (33) in the middle part, which is placed in a strip shape, and four positioning plates (37) are arranged along the long side of the main cabin (33), the main cabin (33) is transversely clamped on the bottom of the positive and negative group bus bars of the upper part of the body (1) through the positioning plates (37); a power supply structure (34) and a communication interface (31) are arranged on one side of the long side of the main cabin (33), and the communication interface (31) is connected with the interface hole (6) on the storage battery cover (2); a temperature sensor (32) is arranged on one side of the long side of the main cabin (33), and a liquid level sensor (36) and a density sensor (35) are arranged in the middle part of the long side of the main cabin (33); the main cabin (33) is internally provided with a processor, which processes the voltage, density, temperature and liquid level monitoring data of the body (1), and the monitoring data is packaged and communicated with external equipment through the communication interface (31). The body (1) of the storage battery is internally provided with pole posts (4), positive and negative plates, separators, electrolyte and a storage battery tank, the pole posts (4) are welded in one body with the positive and negative plates in sequence, the separators are placed in the positive and negative plates, and the fixed positive and negative group assembly is formed into the storage battery tank, the parameter monitoring module (3) is placed on the upper part of the storage battery group, and is transversely clamped on the bottom of the positive and negative group bus bars through the positioning plates (37), so that the power supply structure (34) of the parameter monitoring module (3) is welded in one body with the corresponding positive and negative group bus bars after being positioned.

2. The lead-acid battery with real-time monitoring of its own parameters according to claim 1, characterized in that, The interface hole (6) reserved on the storage battery cover (2) is in a closed state from the factory to the delivery of the customer to install the CAN line; when the CAN line is installed, the top of the interface hole (6) is removed, and the communication interface (31) and the storage battery cover (2) continue to maintain the sealing performance after the CAN line is connected, thereby improving the corrosion resistance.

3. The lead-acid battery with real-time monitoring of its own parameters according to claim 1, characterized in that, The parameter monitoring module (3) adopts a soft shutdown energy-saving setting, when the interface hole (6) on the upper part of the storage battery cover (2) is not connected with the CAN line for more than 30 minutes, the parameter monitoring module (3) enters a soft shutdown mode, the monitoring of the voltage, density, temperature and liquid level of the storage battery is stopped in the soft shutdown mode, and the energy consumption in the soft shutdown mode is less than 0.05W; when the interface hole (6) is connected with the CAN line within 10 seconds, the parameter monitoring module (3) is activated to monitor the voltage, density, temperature and liquid level of the storage battery in real time.

4. The lead-acid battery with real-time monitoring of its own parameters according to claim 3, characterized in that, ​ 5. The lead-acid battery with real-time monitoring of its own parameters according to claim 4, characterized in that, The communication interface (31) adopts CAN2.0B special interface, and the communication interface (31) on the battery cover (2) is provided with an LED indicator lamp for indicating the abnormal state of the battery.

6. The lead-acid battery with real-time monitoring of its own parameters according to claim 1, characterized in that, The power supply structure (34) of the parameter monitoring module (3) adopts a corrosion-resistant material with high conductivity, and according to the material characteristics, the two ends are provided with φ0mm-φ8mm cylindrical hollows for fixing the positive and negative poles of the battery, which also serve as voltage collection lines.

7. The lead-acid battery with real-time monitoring of its own parameters according to claim 1, characterized in that, The density sensor (35) of the parameter monitoring module (3) is uniformly provided with a plurality of through holes along the pipe wall, the density sensor (35) is provided with electronic devices for detecting the density of the electrolyte, and the density sensor (35) is coated with an electrolyte exchange membrane with a 10-mesh to 1000-mesh gap structure to prevent suspended matter in the electrolyte from entering the working area of the density sensor (35).

8. The lead-acid battery with real-time monitoring of its own parameters according to claim 7, characterized in that, The liquid level sensor (36) of the parameter monitoring module (3) is provided with electronic devices for detecting the liquid level along the bottom of the density sensor (35), a stand pipe is arranged above the density sensor (35) opposite to the liquid level sensor (36), the stand pipe is provided with a plurality of through holes and the top is an open structure; the through holes arranged on the stand pipe keep the electrolyte liquid level inside and outside the stand pipe consistent and balance the air pressure, when the electrolyte liquid level fluctuates, the stand pipe has a certain buffering effect on the fluctuating liquid level of the electrolyte, improving the accuracy of the electrolyte liquid level measurement.

9. The lead-acid battery having real-time monitoring of its own parameters according to claim 2, characterized in that, The positioning plate (37) of the parameter monitoring module (3) is a wing-shaped structure, the size of which matches the position of the pole bus bar of the battery, and it is installed at the lower part of the pole bus bar.

10. The lead-acid battery having real-time monitoring of its own parameters according to claim 9, characterized in that, The parameter monitoring module (3) has the functions of self-checking battery voltage, density, temperature and liquid level. The measurement accuracy of voltage is ±0.001V, the measurement accuracy of density is ±0.001g / cm 3 , the measurement accuracy of temperature is ±0.01℃, and the measurement accuracy of liquid level is ±0.1mm. The battery cover (2) is provided with an LED indicator. When an abnormal battery data is monitored, the red light is on to prompt troubleshooting.

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