High-safety lead-acid storage battery

Abstract

The high-safety lead-acid storage battery comprises a shell and a storage battery cover, a plurality of compartments are arranged in the shell, positive plates, negative plates and diaphragms are mounted in the compartments, and a positive pole and a negative pole are mounted at the storage battery cover. According to the storage battery, the storage battery cover is provided with the detection mechanism, so that whether the storage battery breaks down or not can be judged by detecting whether harmful gases such as sulfur dioxide are released or not and whether the amount of gases such as hydrogen and oxygen released from the partition bin is within a reasonable range or not.

Description

Technical Field

[0001] The present invention relates to the technical field of storage batteries, and more specifically, to a lead-acid battery with high safety. Background Art

[0002] A lead-acid battery is a battery whose electrodes are mainly made of lead and its oxides, and the electrolyte is a sulfuric acid solution. During the discharge process, lead dioxide at the positive electrode and lead at the negative electrode react chemically with sulfuric acid in the electrolyte to form lead sulfate and water, while releasing electrical energy. During the charging process, the reverse chemical reaction occurs to convert electrical energy into chemical energy and store it.

[0003] During the use of a lead-acid battery, gases are also generated. When the battery fails, the battery may release harmful gases including sulfur dioxide. These gases can be released through the provided safety valve, thereby ensuring that the internal pressure of the battery is maintained within a safe range and preventing physical damage caused by excessive internal pressure. However, many batteries often lack a detection device for battery failures during the design and manufacturing process. This means that when a battery fails, it is often impossible to detect it in time and take corresponding treatment measures, thereby increasing the risk of fault expansion and potential safety hazards. Summary of the Invention

[0004] The present invention aims to overcome the defects of the prior art and provides a lead-acid battery with high safety.

[0005] To achieve the above object, the present invention provides the following technical solution: A lead-acid battery with high safety, including a housing and a battery cover. The housing has a plurality of compartments, and positive plates, negative plates and diaphragms are installed in the compartments. Positive posts and negative posts are installed at the battery cover. The battery cover has a first groove portion, a second groove portion located within the first groove portion, and a plurality of third groove portions located within the second groove portion. Each third groove portion has a fourth groove portion. The number of compartments is equal to and corresponds one-to-one with the number of fourth groove portions, and each compartment has a fourth groove portion above it. A safety valve is installed in each fourth groove portion. The battery cover further includes a top cover, which is installed within the first groove portion and above the second groove portion to seal the second groove portion. The top cover has a first solenoid valve. The top cover has a plurality of first sealing blocks. The number of first sealing blocks is equal to and corresponds one-to-one with the number of third grooves. The first sealing blocks are installed within the third groove portions and above the fourth groove portions to seal the fourth groove portions.

[0006] Further, the safety valve is a pressure relief and exhaust valve.

[0007] Further, a control unit is also installed within the battery cover.

[0008] Further, a warning light is also installed at the battery cover.

[0009] Further, the top cover abuts against the step formed between the first groove portion and the second groove portion.

[0010] Further, the first sealing block abuts against the step formed between the third groove portion and the fourth groove portion.

[0011] Thereby improving the sealing performance of the top cover.

[0012] Further, the battery cover further has a fifth groove portion located in the second groove portion. Each of the fourth groove portion and the fifth groove portion is communicated through a first communication hole. A barometric pressure sensor is installed in the fifth groove portion; a piston chamber is provided in the battery cover, and the piston chamber and the fifth groove portion are communicated through a second communication hole; a sixth groove portion is further provided in the second groove portion, a seventh groove portion is installed in the sixth groove portion, sliding grooves are provided on both sides of the seventh groove portion, a driving motor is installed in the seventh groove portion, a lead screw is driven by the driving motor, a translation tube is installed at the lead screw, the translation tube has a threaded channel communicated with the lead screw, sliders matched with the sliding grooves are connected to both sides of the translation tube through first connecting plates, a piston matched with the piston chamber is installed at the end of the translation tube, and a third communication hole communicated with the external space of the battery cover is further provided in the seventh groove portion.

[0013] Further, the third communication hole is used for communicating with the atmosphere.

[0014] Thereby facilitating the discharge of the gas inside the battery.

[0015] Further, a second solenoid valve is installed in each first communication hole.

[0016] Further, the battery cover further includes an eighth groove portion. A plurality of transparent U-shaped tubes are installed in the eighth groove portion. The number of the U-shaped tubes is equal to the number of the fourth groove portions and they are in one-to-one correspondence. Both ends of each U-shaped tube are communicated with the corresponding fourth groove portion through a connection channel located in the battery cover; a U-shaped seat is provided in the eighth groove portion, a light emitter and a light intensity detector are installed at the U-shaped seat, the U-shaped seat is connected with a magnetic seat through a second connecting plate, the magnetic seat has a limiting groove, a limiting rail matched with the limiting groove is provided in the fifth groove portion, a communication groove communicating the fifth groove portion and the eighth groove portion is provided between the fifth groove portion and the eighth groove portion, and the second connecting plate passes through the communication groove; a magnetic block is connected to the translation tube through a connecting frame, and the magnetic block and the magnetic seat attract each other so that the magnetic seat can translate along with the magnetic block; a second sealing block is installed at the top cover in the sixth groove portion and above the seventh groove portion to seal the seventh groove portion.

[0017] Further, there are multiple groups of the connecting channels, with two in each group. The two connecting channels are respectively connected to the two ends of the corresponding U-shaped tube; the number of groups of the connecting channels is equal to the number of U-shaped tubes and they are in one-to-one correspondence.

[0018] Further, multiple U-shaped tubes are arranged in a row at equal intervals; the distance between the two outermost U-shaped tubes is less than the length of the translation tube.

[0019] Further, the number of the fourth groove parts is five.

[0020] Further, the magnetic block abuts against the side wall of the seventh groove part.

[0021] Further, the top cover and the battery cover are fixed by adhesive or by bolts; a rubber sealing frame is provided at the top cover; both the first sealing block and the second sealing block are made of rubber.

[0022] Thus, the sealing performance between the top cover and the battery cover is further improved.

[0023] Beneficial effects: 1. For the battery of the present application, it can detect the usage condition of the battery by detecting the amount of gas released inside the battery, thereby improving the safety of the battery.

[0024] 2. For the battery of the present application, it can also detect whether the battery fails by detecting whether gases such as sulfur dioxide are released inside the battery. Description of the drawings

[0025] Figure 1 It is a schematic diagram of the battery cover; Figure 2 It is a schematic diagram of the first perspective of the separated parts of the battery cover; Figure 3 It is an enlarged view of area A; Figure 4 It is an enlarged view of area B; Figure 5 It is an enlarged view of area C; Figure 6 It is a schematic diagram of the second perspective of the separated parts of the battery cover; Figure 7 It is an enlarged view of area D; Figure 8 It is a schematic diagram of the third perspective of the separated parts of the battery cover.

[0026] Description of the reference numerals in the drawings: positive terminal 1; negative terminal 2; first groove portion 3.1; second groove portion 3.2; third groove portion 3.3; fourth groove portion 3.4; fifth groove portion 3.5; limit rail 3.5.1; first communication hole 3.6; second communication hole 3.7; sixth groove portion 3.8; seventh groove portion 3.9; chute 3.10; third communication hole 3.11; eighth groove portion 3.12; connection channel 3.13; communication groove 3.14; safety valve 4; top cover 5; first solenoid valve 5.1; first sealing block 5.2; second sealing block 5.3; rubber sealing frame 5.4; drive motor 6; lead screw 6.1; translation tube 6.2; first connecting plate 6.3; slider 6.4; piston 6.5; U-shaped tube 7; U-shaped seat 8; second connecting plate 8.1; magnetic seat 8.2; connecting frame 8.3; magnetic block 8.4. Detailed implementation manners

[0027] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0028] The present invention provides a highly secure lead-acid battery as shown in the figure, comprising a housing (the housing is not shown in the figure) and a battery cover. The housing has a plurality of compartments, and positive plates, negative plates and diaphragms are installed in the compartments. A positive terminal 1 and a negative terminal 2 are installed at the battery cover. The battery cover has a first groove portion 3.1, a second groove portion 3.2 located within the first groove portion 3.1, and a plurality of third groove portions 3.3 located within the second groove portion 3.2. Each third groove portion 3.3 has a fourth groove portion 3.4. The number of the compartments is equal to and corresponds one-to-one with the number of the fourth groove portions 3.4, and each compartment has a fourth groove portion 3.4 above it. A safety valve 4 is installed in each fourth groove portion 3.4. The battery cover further includes a top cover 5. The top cover 5 is installed within the first groove portion 3.1 and above the second groove portion 3.2 to seal the second groove portion 3.2. A first solenoid valve 5.1 is provided at the top cover 5. The top cover 5 has a plurality of first sealing blocks 5.2. The number of the first sealing blocks 5.2 is equal to and corresponds one-to-one with the number of the third grooves. The first sealing blocks 5.2 are installed within the third groove portions 3.3 and above the fourth groove portions 3.4 to seal the fourth groove portions 3.4. A fifth groove portion 3.5 located within the second groove portion 3.2 is further provided at the battery cover. Each fourth groove portion 3.4 and the fifth groove portion 3.5 are communicated through a first communication hole 3.6. A pressure sensor is installed in the fifth groove portion 3.5. A piston chamber is provided within the battery cover, and the piston chamber and the fifth groove portion 3.5 are communicated through a second communication hole 3.7. A sixth groove portion 3.8 is further provided within the second groove portion 3.2. A seventh groove portion 3.9 is installed in the sixth groove portion 3.8. Chute grooves 3.10 are provided on both sides of the seventh groove portion 3.9. A driving motor 6 is installed in the seventh groove portion 3.9. A lead screw 6.1 is driven by the driving motor 6. A translation tube 6.2 is installed on the lead screw 6.1. The translation tube 6.2 has a threaded channel communicated with the lead screw 6.1. Sliders 6.4 matched with the chute grooves 3.10 are connected to both sides of the translation tube 6.2 through first connecting plates 6.3. A piston 6.5 matched with the piston chamber is installed at the end of the translation tube 6.2. A third communication hole 3.11 communicated with the external space of the battery cover is further provided within the seventh groove portion 3.9. A second solenoid valve is installed in each first communication hole 3.6.

[0029] The battery cover further includes an eighth groove portion 3.12, and a plurality of transparent U-shaped tubes 7 are installed in the eighth groove portion 3.12. The number of the U-shaped tubes 7 is equal to the number of the fourth groove portions 3.4 and they are in one-to-one correspondence. Both ends of each U-shaped tube 7 are communicated with the corresponding fourth groove portion 3.4 through a connection channel 3.13 located inside the battery cover; there is a U-shaped seat 8 in the eighth groove portion 3.12, and a light emitter and a light intensity detector are installed at the U-shaped seat 8. The U-shaped seat 8 is connected with a magnetic seat 8.2 through a second connecting plate 8.1. The magnetic seat 8.2 has a limiting groove, and a limiting rail 3.5.1 matched with the limiting groove is arranged in the fifth groove portion 3.5. There is a communication groove 3.14 communicating the fifth groove portion 3.5 and the eighth groove portion 3.12 between the fifth groove portion 3.5 and the eighth groove portion 3.12, and the second connecting plate 8.1 passes through the communication groove 3.14; the translation tube 6.2 is connected with a magnetic block 8.4 through a connecting frame 8.3, and the magnetic block 8.4 and the magnetic seat 8.2 attract each other so that the magnetic seat 8.2 can translate along with the magnetic block 8.4; there is a second sealing block 5.3 installed in the sixth groove portion 3.8 and located above the seventh groove portion 3.9 to seal the seventh groove portion 3.9 at the top cover 5.

[0030] The plurality of U-shaped tubes 7 are arranged in a row at equal intervals; the distance between the two U-shaped tubes 7 at the outermost ends is less than the length of the translation tube 6.2. The number of the fourth groove portions 3.4 is five. The magnetic block 8.4 abuts against the side wall of the seventh groove portion 3.9. The top cover 5 and the battery cover are fixed by an adhesive or by bolts; there is a rubber sealing frame 5.4 at the top cover 5; both the first sealing block 5.2 and the second sealing block 5.3 are made of rubber.

[0031] Working principle: When the battery of the present application is in normal use, the first solenoid valve and the second solenoid valve in the first communication hole are opened. When the air pressure in the partition chamber is too high, it can be relieved to the fourth groove portion through the safety valve. The fourth groove portion is communicated with the fifth groove portion through the first communication hole, and the fifth groove portion is communicated with the second groove portion.

[0032] When detection is required, the first solenoid valve and all the second solenoid valves are closed. After the battery has been used for a set time (at this time, since the gas released in the partition chamber is in the fourth groove portion and the air pressure in the fourth groove portion is greater than that in the second groove portion), during detection, the drive motor first drives the piston to move, so that the gas in the piston chamber is pressed into the second groove portion. The air pressure sensor detects the air pressure. Thus, when the air pressure increases and remains constant, it indicates that the sealing performance of the top cover is very good (only when the sealing performance of the top cover is very good can the following detection be carried out). And during the translation of the translation tube, under the cooperation of the magnet block and the magnetic seat, the magnetic seat will move along with the magnet block, so as to translate the U-shaped seat to the position of each U-shaped tube and stay at the position of each U-shaped tube. During the stay, a light generator and a light intensity detector can be used for detection to determine whether there are harmful gases such as sulfur dioxide in the U-shaped tube. If there are, it indicates a malfunction. If there is no malfunction through the detection of the light emitter and the light intensity detector, then the translation tube is reset. Then, the second solenoid valves in the plurality of first communication holes are opened one by one (preferably from one end to the other end successively). Each time one is opened, the overall air pressure formed between the corresponding fourth groove portion, fifth groove portion and second groove portion of the opened second solenoid valve will increase (the initially connected fourth groove portion has a greater impact on the change in air pressure, and the later connected fourth groove portion has a relatively smaller impact on the change in air pressure. However, under normal circumstances, each change should be within a reasonable range, and the reasonable range can be calculated based on the volumes of the fourth groove portion, second groove portion and fifth groove portion, or directly obtained through experiments). If the increased value is within the reasonable range when connecting one fourth groove portion, it indicates no malfunction. If the increased value of the air pressure exceeds the reasonable range compared with the value that should change under normal circumstances when connecting a certain fourth groove portion, it indicates that a malfunction has occurred in the operation of this partition chamber of the battery. Thus, maintenance can be reminded.

[0033] The battery of the present application is provided with a detection mechanism through the battery cover, so that it can be judged whether the battery has a malfunction by detecting whether harmful gases such as sulfur dioxide are released and whether the amounts of gases such as hydrogen and oxygen released in the partition chamber are within a reasonable range.

[0034] Although the present invention has been illustrated and described with respect to the preferred embodiments, those skilled in the art should understand that various changes and modifications can be made to the present invention as long as they do not exceed the scope defined by the claims of the present invention.

Claims

1. A high-safety lead-acid battery, characterized in that: It includes a shell and a battery cover, the shell has a plurality of compartments, the compartments are equipped with positive plates, negative plates and diaphragms, and the battery cover is equipped with positive poles and negative poles; the battery cover has a first groove portion, a second groove portion located in the first groove portion, and a plurality of third groove portions located in the second groove portion, each third groove portion has a fourth groove portion, the number of the compartments is equal to the number of the fourth groove portions and corresponds one to one, and each compartment has a fourth groove portion above; each fourth groove portion has a safety valve installed in the fourth groove portion; the battery cover also includes a top cover, the top cover is installed in the first groove portion and is located above the second groove portion to seal the second groove portion, the top cover has a first solenoid valve, the top cover has a plurality of first sealing blocks, the number of the first sealing blocks is equal to the number of the third grooves and corresponds one to one, the first sealing block is installed in the third groove portion and is located above the fourth groove portion to seal the fourth groove portion.

2. The high-safety lead-acid battery according to claim 1, characterized in that: The battery cover also has a fifth groove portion located in the second groove portion, each of the fourth groove portion and the fifth groove portion are connected through the first connecting hole, and an air pressure sensor is installed in the fifth groove portion; the battery cover has a piston cavity, and the piston cavity and the fifth groove portion are connected through the second connecting hole; the second groove portion also has a sixth groove portion, and a seventh groove portion is installed in the sixth groove portion, and slide grooves are provided on both sides of the seventh groove portion, and a driving motor is installed in the seventh groove portion, and the driving motor drives a screw rod, and a translation tube is installed at the screw rod, and the translation tube has a threaded channel connected to the screw rod, and both sides of the translation tube are connected to sliders matching the slide grooves through the first connecting plate, and a piston matching the piston cavity is installed on the end of the translation tube, and the seventh groove portion also has a third connecting hole connected to the external space of the battery cover.

3. The high-safety lead-acid battery according to claim 2, characterized in that: A second solenoid valve is installed in each first communicating hole.

4. The high-safety lead-acid battery according to claim 3, characterized in that: The battery cover also includes an eighth groove portion, in which a plurality of transparent U-shaped tubes are installed, the number of the U-shaped tubes is equal to the number of the fourth groove portions and the two correspond one to one, and both ends of each U-shaped tube are connected to the corresponding fourth groove portion through a connecting channel located in the battery cover; the eighth groove portion has a U-shaped seat, on which a light emitter and a light intensity detector are installed, the U-shaped seat is connected to a magnetic seat through a second connecting plate, and the magnetic seat has a limiting groove, the fifth groove portion has a limiting rail that cooperates with the limiting groove, a connecting groove connecting the fifth groove portion and the eighth groove portion is provided between the fifth groove portion and the eighth groove portion, and the second connecting plate passes through the connecting groove; the translation tube is connected to a magnetic block through a connecting frame, and the magnetic block and the magnetic seat attract each other so that the magnetic seat can translate with the magnetic block; the top cover has a second sealing block installed on the sixth groove portion and located above the seventh groove portion to seal the seventh groove portion.

5. The high-safety lead-acid battery according to claim 4, characterized in that: The multiple U-shaped tubes are arranged in a row with equal spacing; the spacing between the two U-shaped tubes at the end is smaller than the length of the translation tube.

6. The high-safety lead-acid battery according to claim 4, characterized in that: The number of the fourth groove portions is five.

7. The high-safety lead-acid battery according to claim 4, characterized in that: The magnetic block abuts against a side wall of the seventh groove portion.

8. The high-safety lead-acid battery according to claim 4, characterized in that: The top cover and the battery cover are fixed by adhesive or bolts; the top cover is provided with a rubber sealing frame; the first sealing block and the second sealing block are both made of rubber.

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