High-safety lead-acid storage battery

Abstract

The high-safety lead-acid storage battery comprises a shell and a protective cover mounted at the top of the shell, and a control box, a movable seat, a translation unit for driving the movable seat, two electrode columns and two connecting units capable of being electrically connected with the two electrode columns respectively are mounted in the protective cover. According to the storage battery, when the temperature sensor detects that the temperature of the joint of the first connecting seat and the electrode column exceeds a set threshold value, the translation unit drives the movable seat to drive the first connecting seat to be separated from the electrode column, so that power failure is realized. The connection unit is electrically connected with the electrode column stably, and when the motor is abnormal, the connection can be disconnected through manual operation. And a protective cover is arranged, so that the internal structure is protected from being affected with damp, and the use safety of the storage battery is improved.

Description

Technical Field

[0001] This utility model relates to the field of storage batteries, and more specifically, to a high-safety lead-acid storage battery. Background Technology

[0002] A lead-acid battery is a secondary battery whose electrodes are mainly made of lead and its oxides, and whose electrolyte is sulfuric acid solution. Its positive electrode active material is lead dioxide, and its negative electrode active material is lead. Energy storage and release are achieved through a reversible chemical reaction between the positive and negative electrodes and the electrolyte. During charging, the lead sulfate at the positive and negative electrodes is converted into lead dioxide and spongy lead, respectively; during discharging, the reverse reaction produces lead sulfate. It is widely used in automotive starting, backup power, communication base stations, electric bicycles, and other fields.

[0003] Traditional lead-acid batteries experience a sharp increase in current during severe overload, short circuit, or internal faults, leading to abnormally high temperatures at the connection points between the terminals and cables. This high temperature can melt insulation, burn connectors, and even ignite surrounding combustibles, posing a fire risk. Existing protection measures (such as fuses or circuit breakers) typically operate based on current thresholds, which may not respond promptly or accurately detect localized overheating at connection points. Furthermore, traditional bolted or crimped connections are prone to loosening under long-term vibration, thermal expansion and contraction, or corrosion, affecting power supply stability and safety, and even causing connection failure. When a battery malfunctions and requires emergency power disconnection, existing connection methods usually require tools (such as wrenches) to disassemble the connectors. This process is time-consuming and inconvenient, potentially delaying response in emergencies and increasing risk. Additionally, the terminals of existing lead-acid batteries are often exposed or simply covered. In humid or harsh environments, the terminals and their connections are susceptible to moisture, increasing the risk of leakage. Utility Model Content

[0004] The present invention aims to overcome the defects of the prior art and provide a highly safe lead-acid battery.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lead-acid battery, comprising a casing and a protective cover mounted on the top of the casing. The protective cover houses a control box, a movable seat, a translation unit for driving the movable seat to move, two electrode posts, and two connection units respectively capable of electrically connecting to the two electrode posts. The movable seat is made of insulating material, and a T-shaped slider is provided at the bottom of the movable seat. The casing has a T-shaped groove that mates with the T-shaped slider. The translation unit includes a motor mounted on the casing, a lead screw driven by the motor and passing through the movable seat, a fixed frame mounted on the casing, and a bearing mounted on the fixed frame and connected to the lead screw. The movable seat has a threaded passage that mates with the lead screw. The connection unit includes a first connecting seat, a second connecting seat mounted on a movable seat, and a wire connected to the second connecting seat. The first connecting seat includes a rotating part hinged to the second connecting seat and a plug-in part connected to the rotating part. The plug-in part is inverted U-shape, and the electrode post can be inserted into the plug-in part. A metal conductive spring is provided on the side of the lower arm of the plug-in part near the upper arm. The movable seat has two grooves, and a temperature sensor is installed in the grooves. The two plug-in parts can respectively abut against the top openings of the two grooves. The protective cover has a through hole for the wire to pass through. The control box contains a control unit and a battery unit. The control unit is electrically connected to the temperature sensor and the motor.

[0006] Furthermore, a limiting unit for limiting the first connecting seat is provided at the first connecting seat. The limiting unit is made of insulating material and includes two baffles and a manual lever connecting the two baffles. The two baffles are respectively fixed to both ends of the lower arm of the plug-in part by a rotating shaft. When there is no external force, the baffles are in a vertically downward state under their own weight. The movable seat has two limiting plates, and the two baffles can respectively abut against the two limiting plates.

[0007] Therefore, when the connecting unit is connected to the electrode post, the limiting unit can limit the first connecting seat, thereby preventing the first connecting seat from moving and affecting the connection effect.

[0008] Furthermore, the housing and the protective cover are fixedly connected by fixing bolts. The protective cover has multiple bolt through holes that mate with the fixing bolts. The top of the housing has multiple nut posts, and the nut posts have threaded holes that mate with the fixing bolts.

[0009] This makes the cover easy to install and remove, thus facilitating maintenance.

[0010] Furthermore, the protective cover has a rectangular through hole, and a transparent plate is installed in the rectangular through hole.

[0011] This makes it easier to observe the inside of the protective cover.

[0012] Furthermore, the bottom width of the T-shaped slider is greater than the top width, and a disassembly groove is provided at the T-shaped groove. The width of the disassembly groove is greater than the bottom width of the T-shaped slider, and the length of the disassembly groove is greater than the length of the T-shaped slider.

[0013] After removing the motor and control box, slide the T-shaped slider of the movable seat to the disassembly slot to remove the movable seat.

[0014] Furthermore, both the upper and lower arms of the plug-in portion are provided with rounded corners.

[0015] This facilitates better insertion of the electrode post into the interior of the connector.

[0016] Furthermore, a sealing gasket is provided at the perforation, and waterproof adhesive is applied to the perforation. The sealing gasket is located between the wire and the perforation.

[0017] This results in a very good waterproof effect.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. In the battery of this application, when the temperature sensor detects that the temperature at the connection between the first connector and the electrode post exceeds a set threshold, the translation unit drives the movable seat to separate the first connector from the electrode post, thereby achieving power off and improving the safety of battery use.

[0020] 2. The battery of this application has a stable electrical connection between the connection unit and the electrode post, and the connection can be manually disconnected when the motor malfunctions.

[0021] 3. The battery of this application is equipped with a protective cover to protect the internal structure from moisture and improve the safety of battery use. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a storage battery;

[0023] Figure 2 A schematic diagram showing the protective cover being opened and one of the limiting units limiting the corresponding first connecting seat;

[0024] Figure 3 This is a magnified view of region A;

[0025] Figure 4 for Figure 2 Another perspective illustration;

[0026] Figure 5 This is a magnified view of region B.

[0027] Figure 6 A schematic diagram showing the protective cover open and one of the connecting units separated from the movable seat.

[0028] Explanation of reference numerals in the attached drawings: Housing 1; T-shaped slide 1.1; disassembly groove 1.2; groove 1.3; nut post 1.4; threaded hole 1.5; protective cover 2; control box 3; movable seat 4; limit plate 4.1; electrode post 5; motor 6.1; lead screw 6.2; rotating part 7.1; plug-in part 7.2; second connecting seat 7.3; wire 7.4; metal conductive spring 7.5; temperature sensor 8; baffle 9.1; manual lever 9.2. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] This utility model provides, for example Figure 1-6 The diagram shows a high-safety lead-acid battery, comprising a housing 1 and a protective cover 2 mounted on the top of the housing 1. The protective cover 2 houses a control box 3, a movable seat 4, a translation unit for driving the movable seat 4 to move, two electrode posts 5, and two connecting units that can be electrically connected to the two electrode posts 5 respectively. The movable seat 4 is made of insulating material, and a T-shaped slider is provided at the bottom of the movable seat 4. The housing 1 has a T-shaped groove 1.1 that mates with the T-shaped slider. The translation unit includes a motor 6.1 mounted on the housing 1, a lead screw 6.2 driven by the motor 6.1 and passing through the movable seat 4, a fixing frame mounted on the housing 1, and a bearing mounted on the fixing frame and connected to the lead screw 6.2. The movable seat 4 has a threaded channel that mates with the lead screw 6.2. The connecting units include a first connecting seat, a mounting... The movable seat 4 has a second connecting seat 7.3 and a wire 7.4 connected to the second connecting seat 7.3. The first connecting seat includes a rotating part 7.1 hinged to the second connecting seat 7.3 and a plug-in part 7.2 connected to the rotating part 7.1. The plug-in part 7.2 is inverted U-shape. The electrode post 5 can be inserted into the plug-in part 7.2. The lower arm of the plug-in part 7.2 is provided with a metal conductive spring 7.5 near the upper arm. The movable seat 4 has two grooves 1.3. The temperature sensor 8 is installed in the grooves. The two plug-in parts 7.2 can respectively abut the top openings of the two grooves 1.3. The protective cover 2 has a through hole for the wire 7.4 to pass through. The control box 3 is equipped with a control unit and a battery unit. The control unit is electrically connected to the temperature sensor 8 and the motor 6.1.

[0031] The first connecting seat is provided with a limiting unit for limiting the first connecting seat. The limiting unit is made of insulating material. The limiting unit includes two baffles 9.1 and a manual lever 9.2 connecting the two baffles 9.1. The two baffles 9.1 are respectively fixed to both ends of the lower arm of the plug-in part 7.2 by a rotating shaft. When there is no external force, the baffles 9.1 are in a vertically downward state under the action of their own weight. The movable seat 4 has two limiting plates 4.1. The two baffles 9.1 can abut against the two limiting plates 4.1 respectively.

[0032] The housing 1 and the protective cover 2 are fixedly connected by fixing bolts. The protective cover 2 has multiple bolt through holes that mate with the fixing bolts. The top of the housing 1 has multiple nut posts 1.4, each with a threaded hole 1.5 that mates with the fixing bolts. The protective cover 2 has a rectangular through hole, and a transparent plate is installed in the rectangular through hole. The bottom width of the T-shaped slider is greater than the top width. A disassembly groove 1.2 is provided at the T-shaped slide groove 1.1. The width of the disassembly groove 1.2 is greater than the bottom width of the T-shaped slider, and the length of the disassembly groove 1.2 is greater than the length of the T-shaped slider. The upper and lower arms of the insertion part 7.2 are both rounded. A sealing gasket is provided at the through hole, and waterproof adhesive is applied to the through hole. The sealing gasket is located between the wire 7.4 and the through hole.

[0033] Working Principle: The battery of this application is equipped with a protective cover to protect the internal structure from moisture and improve battery safety. During use, the movable seat is moved to a suitable position by a translation unit, allowing the two electrode posts to be inserted into their corresponding connectors, thus achieving electrical connection. To ensure stable electrical connection between the connectors and the electrode posts, a metal conductive spring is provided on the upper surface of the bottom arm of the connector. Furthermore, under normal conditions, the baffle of the limiting unit is vertically downward due to its own weight, preventing the first connector from deflecting due to the limiting plate's constraint.

[0034] When the temperature sensor detects that the temperature at the connection point between the first connector and the electrode post exceeds a set threshold, it controls the motor to rotate, thereby driving the movable seat to separate the first connector from the electrode post, thus achieving power cut-off. The battery unit of this application provides independent power to the motor and temperature sensor. If the motor, controller, or temperature sensor is damaged and cannot cut off the battery power, manual intervention is possible. After opening the protective cover, the manual lever is moved, causing the baffle to rotate, thereby opening the limit plate and allowing the first connector to rotate around the hinged part, thus separating the first connector from the electrode post and achieving battery power cut-off.

[0035] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes and modifications can be made to the present invention without departing from the scope defined by the claims.

Claims

1. A high-safety lead-acid battery, characterized in that, The device includes a housing and a protective cover mounted on top of the housing. The protective cover houses a control box, a movable seat, a translation unit for driving the movable seat to move, two electrode posts, and two connecting units that can be electrically connected to the two electrode posts respectively. The movable seat is made of insulating material, and a T-shaped slider is provided at its bottom. The housing has a T-shaped groove that mates with the T-shaped slider. The translation unit includes a motor mounted on the housing, a lead screw driven by the motor and passing through the movable seat, a fixed frame mounted on the housing, and a bearing mounted on the fixed frame and connected to the lead screw. The movable seat has a threaded channel that mates with the lead screw. The connecting units include a first connecting seat... The first connecting seat includes a rotating part hinged to the second connecting seat and a plug-in part connected to the rotating part. The plug-in part is U-shaped and the electrode post can be inserted into the plug-in part. A metal conductive spring is provided on the side of the lower arm of the plug-in part near the upper arm. The movable seat has two grooves in which a temperature sensor is installed. The two plug-in parts can respectively abut against the top openings of the two grooves. The protective cover has a through hole for the wire to pass through. The control box contains a control unit and a battery unit. The control unit is electrically connected to the temperature sensor and the motor.

2. The high-safety lead-acid battery according to claim 1, characterized in that, The first connecting seat is provided with a limiting unit for limiting the first connecting seat. The limiting unit is made of insulating material. The limiting unit includes two baffles and a manual lever connecting the two baffles. The two baffles are respectively fixed to both ends of the lower arm of the plug part by a rotating shaft. When there is no external force, the baffles are in a vertically downward state under their own weight. The movable seat has two limiting plates, and the two baffles can abut against the two limiting plates respectively.

3. The high-safety lead-acid battery according to claim 1, characterized in that, The housing and the protective cover are fixedly connected by fixing bolts. The protective cover has multiple bolt through holes that mate with the fixing bolts. The top of the housing has multiple nut posts, and the nut posts have threaded holes that mate with the fixing bolts.

4. The high-safety lead-acid battery according to claim 1, characterized in that, The protective cover has a rectangular through hole, and a transparent plate is installed in the rectangular through hole.

5. The high-safety lead-acid battery according to claim 1, characterized in that, The bottom width of the T-shaped slider is greater than the top width. A disassembly groove is provided at the T-shaped groove. The width of the disassembly groove is greater than the bottom width of the T-shaped slider, and the length of the disassembly groove is greater than the length of the T-shaped slider.

6. The high-safety lead-acid battery according to claim 1, characterized in that, Both the upper and lower arms of the connector are provided with rounded corners.

7. The high-safety lead-acid battery according to claim 1, characterized in that, A sealing gasket is provided at the perforation, and waterproof adhesive is applied to the perforation. The sealing gasket is located between the wire and the perforation.

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