Lead-acid storage battery with external charging protection device

Abstract

The utility model discloses a lead-acid storage battery with an external charging protection device, and relates to the technical field of lead-acid storage batteries. The lead-acid storage battery comprises a lead-acid storage battery, a liquid injection opening is formed in the top of the lead-acid storage battery, a sealing cover is installed on the liquid injection opening in a threaded mode, the sealing cover is made of plastic, an inner connector lug is arranged at the position, located on the front side of the liquid injection opening, of the top of the lead-acid storage battery, and a charging protection mechanism is arranged at the position, located above the inner connector lug, of the top of the lead-acid storage battery. According to the utility model, the charging protection mechanism is arranged, and the temperature sensor is matched with the motor, the threaded rod, the communication block and the movable rod, so that after the storage battery is heated during charging, the temperature sensor can effectively ensure that the charging operation is automatically cut off when the temperature of the storage battery is too high; and the situation that the battery explodes and is on fire due to continuous charging of the storage battery is avoided, and the practicability of the device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lead-acid batteries, in particular to a lead-acid battery with an external charging protection device. Background Art

[0002] Lead-acid batteries generally include a battery casing, a battery middle cover is provided at the upper end of the battery casing, and a safety valve seat for installing a safety valve is provided on the battery middle cover. For sealed lead-acid batteries, the safety valve is a component that must be installed. The safety valve plays a role in regulating and limiting the pressure difference between the inside and outside of the battery. When the amount of gas inside the battery exceeds a certain value (usually expressed as an air pressure value), that is, when the air pressure inside the battery rises to a certain value, the exhaust valve automatically opens to exhaust the gas, and then automatically closes the valve to prevent air from entering the battery, ensuring that the battery can be used safely. It is similar to the role of the safety valve on the well-known pressure cooker.

[0003] Lead-acid batteries will generate heat when charging. When the temperature of the lead-acid battery itself exceeds the safety value, continuous charging input can easily cause the lead-acid battery to explode and catch fire.

[0004] For this purpose, a lead-acid battery with an external charging protection device is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that a lead-acid battery will generate heat when being charged. When the temperature of the lead-acid battery itself exceeds the safety value, continuous charging input is likely to cause an accidental explosion and fire of the lead-acid battery. The utility model provides a lead-acid battery with an external charging protection device.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] A lead-acid battery with an external charging protection device includes a lead-acid battery, a liquid injection port is arranged on the top of the lead-acid battery, a sealing cover is threadedly installed on the liquid injection port, the sealing cover is made of plastic material, an internal terminal is arranged on the top of the lead-acid battery in front of the liquid injection port, and a charging protection mechanism is arranged on the top of the lead-acid battery above the internal terminal; specifically, in some embodiments, when the lead-acid battery needs to be charged, the charging protection mechanism is docked through a charging guide, so that the charging protection mechanism and the lead-acid battery are powered on for charging operation, and when the charging protection mechanism detects that the charging temperature of the lead-acid battery is too high, the charging protection mechanism is triggered, so that the charging operation is disconnected.

[0008] Furthermore, the charging protection mechanism includes a slot, a block, a fixing bolt, a hidden slot, an external terminal, a motor, a mounting shell, a protective shell, a guide rod, a temperature sensor, a threaded rod, a movable rod and a connecting block. A slot is provided on the top of the lead-acid battery, a block is provided in the slot, a mounting shell is fixedly installed on the front side wall of the block, the mounting shell cover is arranged on the outside of the internal terminal, an external terminal corresponding to the internal terminal is inlaid and installed on the mounting shell, a temperature sensor is fixedly installed on the front inner wall of the mounting shell, a threaded rod is rotatably installed in the middle of the inner top of the mounting shell, a movable rod is threadedly installed on the threaded rod, and guide rods are fixedly installed on the inner top of the mounting shell on both sides of the threaded rod. Rod, the guide rod is sleeved on the movable rod and is slidably connected to the movable rod, the two ends of the movable rod are corresponding to the inner terminal head and the outer terminal head in turn, and the two ends of the movable rod are inlaid with connecting blocks, the top of the connecting block is fitted with the bottom of the outer terminal head, and a motor is fixedly installed on the top of the mounting shell, the output end of the motor longitudinally penetrates the mounting shell and is fixedly connected to the threaded rod, and a contraction mechanism is provided on the outer terminal head; specifically, when the temperature sensor detects that the temperature is too high, the motor is driven at this time, and only the threaded rod rotates. At this time, the movable rod moves longitudinally, and only the movable rod drives the connecting block to move longitudinally. At this time, the inner terminal head is disconnected from the outer terminal head, thereby achieving the effect of disconnecting the charging operation.

[0009] Furthermore, a hidden groove is provided on the top of the card block, a fixing bolt is installed on the hidden groove, and the fixing bolt is threadedly connected to the lead-acid battery; specifically, the overall aesthetics of the battery is maintained, while also ensuring the installation stability of the charging protection mechanism.

[0010] Furthermore, the movable rod is made of insulating plastic material, and the connecting block is made of conductive metal material; specifically, the safety of use of the charging protection mechanism is ensured.

[0011] Furthermore, a protective shell is fixedly mounted on the top of the mounting shell and located outside the motor.

[0012] Furthermore, the retraction mechanism includes a movable plate, a movable joint and a return spring. The return spring is fixedly installed on the inner top of the external terminal head, and the movable plate is fixedly installed on the free end of the return spring. The outer side of the movable plate is fitted with the inner wall of the external terminal head, and the bottom of the movable plate is fixedly installed with a movable joint, and the movable joint is fitted with the connecting block. Specifically, when the threaded rod rotates, the movable rod moves longitudinally, causing the movable joint to retract into the external terminal head, and the connecting block and the internal terminal head can be disconnected at this time.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The utility model sets a charging protection mechanism and adopts a temperature sensor in conjunction with a motor, a threaded rod, a connecting block and a movable rod. When the battery is heated during charging, the temperature sensor can effectively ensure that the charging operation is automatically disconnected when the temperature of the battery is too high, thereby avoiding the explosion and fire of the battery caused by continuous charging of the battery, and greatly improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the card slot position structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the hidden slot position structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the position structure of the threaded rod of the utility model;

[0019] Figure 5 It is a schematic diagram of the position structure of the return spring of the utility model;

[0020] Figure numerals: 1. protective shell; 2. liquid filling port; 3. lead-acid battery; 4. slot; 5. internal terminal; 6. mounting shell; 7. block; 8. fixing bolt; 9. hidden slot; 10. external terminal; 11. motor; 12. guide rod; 13. temperature sensor; 14. threaded rod; 15. movable rod; 16. connecting block; 17. movable joint; 18. movable plate; 19. reset spring. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0024] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] like Figures 1 to 5 As shown, a lead-acid battery with an external charging protection device includes a lead-acid battery 3, a liquid injection port 2 is arranged on the top of the lead-acid battery 3, a sealing cover is threadedly installed on the liquid injection port 2, and the sealing cover is made of plastic material, an internal terminal 5 is arranged on the top of the lead-acid battery 3 located in front of the liquid injection port 2, and a charging protection mechanism is arranged on the top of the lead-acid battery 3 located above the internal terminal 5; specifically, in some embodiments, when it is necessary to charge the lead-acid battery 3, the charging protection mechanism is docked through the charging guide, so that the charging protection mechanism and the lead-acid battery 3 are powered on for charging operation, and when the charging protection mechanism detects that the charging temperature of the lead-acid battery 3 is too high, the charging protection mechanism is triggered at this time, so that the charging operation is disconnected.

[0026] like Figures 1 to 5As shown, the charging protection mechanism includes a slot 4, a block 7, a fixing bolt 8, a hidden slot 9, an external terminal 10, a motor 11, a mounting shell 6, a protective shell 1, a guide rod 12, a temperature sensor 13, a threaded rod 14, a movable rod 15 and a connecting block 16. A slot 4 is provided on the top of the lead-acid battery 3, a block 7 is provided in the slot 4, a mounting shell 6 is fixedly installed on the front side wall of the block 7, the mounting shell 6 is covered on the outside of the internal terminal 5, an external terminal 10 corresponding to the internal terminal 5 is inlaid and installed on the mounting shell 6, a temperature sensor 13 is fixedly installed on the front inner wall of the mounting shell 6, a threaded rod 14 is rotatably installed in the middle of the inner top of the mounting shell 6, a movable rod 15 is threadedly installed on the threaded rod 14, and guide rods are fixedly installed on the inner top of the mounting shell 6 on both sides of the threaded rod 14 12, the guide rod 12 is sleeved on the movable rod 15 and is slidably connected to the movable rod 15, the two ends of the movable rod 15 are corresponding to the internal terminal 5 and the external terminal 10 in turn, and the two ends of the movable rod 15 are inlaid with connecting blocks 16, the top of the connecting block 16 is fitted with the bottom of the external terminal 10, and the top of the mounting shell 6 is fixedly installed with a motor 11, the output end of the motor 11 longitudinally penetrates the mounting shell 6 and is fixedly connected to the threaded rod 14, and a contraction mechanism is provided on the external terminal 10; specifically, when the temperature sensor 13 detects that the temperature is too high, the motor 11 is driven at this time, and only the threaded rod 14 rotates. At this time, the movable rod 15 moves longitudinally, and only the movable rod 15 drives the connecting block 16 to move longitudinally. At this time, the internal terminal 5 is disconnected from the external terminal 10, thereby achieving the effect of disconnecting the charging operation.

[0027] like Figures 1 to 5 As shown, a hidden groove 9 is provided on the top of the block 7, and a fixing bolt 8 is installed on the hidden groove 9, and the fixing bolt 8 is threadedly connected to the lead-acid battery 3; specifically, the overall aesthetics of the battery is maintained, while also ensuring the installation stability of the charging protection mechanism.

[0028] like Figures 1 to 5 As shown, the movable rod 15 is made of insulating plastic material, and the connecting block 16 is made of conductive metal material; specifically, the safety of the charging protection mechanism is ensured.

[0029] like Figures 1 to 5 As shown, the top of the mounting shell 6 is located outside the motor 11 and a protective shell 1 is fixedly mounted thereon.

[0030] like Figures 1 to 5As shown, the retraction mechanism includes a movable plate 18, a movable joint 17 and a reset spring 19. The reset spring 19 is fixedly installed on the inner top of the external terminal 10, and the movable plate 18 is fixedly installed on the free end of the reset spring 19. The outer side of the movable plate 18 is fitted with the inner wall of the external terminal 10, and the movable joint 17 is fixedly installed on the bottom of the movable plate 18. The movable joint 17 is fitted with the connecting block 16; specifically, when the threaded rod 14 rotates, the movable rod 15 moves longitudinally, causing the movable joint 17 to retract into the external terminal 10, and the connecting block 16 and the internal terminal 5 can be disconnected.

[0031] In summary: In some embodiments, when it is necessary to charge the lead-acid battery 3, the charging protection mechanism is docked through the charging guide, so that the charging protection mechanism and the lead-acid battery 3 are powered on for charging. When the charging protection mechanism detects that the charging temperature of the lead-acid battery 3 is too high, the charging protection mechanism is triggered, causing the charging operation to be disconnected. When the temperature sensor 13 detects that the temperature is too high, the motor 11 is driven, and only the threaded rod 14 rotates. At this time, the movable rod 15 moves longitudinally, and only the movable rod 15 drives the connecting block 16 to move longitudinally. At this time, the inner terminal 5 is disconnected from the outer terminal 10, achieving the effect of disconnecting the charging operation. When the threaded rod 14 rotates, the movable rod 15 moves longitudinally, causing the movable joint 17 to retract into the external terminal 10, and the disconnection of the connecting block 16 and the inner terminal 5 can be completed.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A lead-acid battery with an external charging protection device, characterized in that: The invention comprises a lead-acid storage battery (3), wherein a liquid injection port (2) is arranged at the top of the lead-acid storage battery (3), a sealing cover is threadedly mounted on the liquid injection port (2), and the sealing cover is made of plastic material; an inner terminal (5) is arranged at the top of the lead-acid storage battery (3) in front of the liquid injection port (2); a charging protection mechanism is arranged at the top of the lead-acid storage battery (3) above the inner terminal (5), and the charging protection mechanism comprises a card slot (4), a card block (7), a fixing bolt (8), a hidden slot (9), an outer A terminal head (10), a motor (11), a mounting shell (6), a protective shell (1), a guide rod (12), a temperature sensor (13), a threaded rod (14), a movable rod (15), a connecting block (16), and a lead-acid storage battery (3) are provided with a card slot (4) on the top, a card block (7) is provided in the card slot (4), a mounting shell (6) is fixedly installed on the front side wall of the card block (7), the mounting shell (6) is covered on the outside of the internal terminal head (5), and a card slot (7) is provided on the mounting shell (6) The inner terminal (5) is provided with an outer terminal (10) corresponding to the inner terminal, a temperature sensor (13) is fixedly installed on the inner wall of the front side of the mounting shell (6), a threaded rod (14) is rotatably installed at the center of the inner top of the mounting shell (6), a movable rod (15) is threadedly installed on the threaded rod (14), and a guide rod (12) is fixedly installed on both sides of the threaded rod (14) at the inner top of the mounting shell (6), and the guide rod (12) is sleeved on the movable rod (15) and is slidably connected with the movable rod (15). The movable rod (15) is provided with two ends corresponding to the inner terminal (5) and the outer terminal (10) in sequence, and a connecting block (16) is inlaid and installed at both ends of the movable rod (15). The top of the connecting block (16) is fitted with the bottom of the outer terminal (10). A motor (11) is fixedly installed on the top of the mounting shell (6). The output end of the motor (11) longitudinally penetrates the mounting shell (6) and is fixedly connected to the threaded rod (14). A retracting mechanism is provided on the outer terminal (10).

2. A lead-acid battery with an external charging protection device according to claim 1, characterized in that: A hidden groove (9) is provided on the top of the clamping block (7), a fixing bolt (8) is sleeved and installed on the hidden groove (9), and the fixing bolt (8) is threadedly connected to the lead-acid battery (3).

3. A lead-acid battery with an external charging protection device according to claim 1, characterized in that: The movable rod (15) is made of insulating plastic material, and the connecting block (16) is made of conductive metal material.

4. A lead-acid battery with an external charging protection device according to claim 1, characterized in that: The top of the installation shell (6) is located outside the motor (11) and a protective shell (1) is fixedly installed thereon.

5. A lead-acid battery with an external charging protection device according to claim 1, characterized in that: The retracting mechanism comprises a movable plate (18), a movable joint (17) and a return spring (19); the return spring (19) is fixedly mounted on the inner top of the external terminal (10); the movable plate (18) is fixedly mounted on the free end of the return spring (19); the outer side of the movable plate (18) is fitted with the inner wall of the external terminal (10); the bottom of the movable plate (18) is fixedly mounted with the movable joint (17); and the movable joint (17) is fitted with the connecting block (16).

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