Lead-acid storage battery pack with explosion-proof structure

Abstract

The utility model relates to the technical field of storage batteries, and provides a lead-acid storage battery pack with an explosion-proof structure, which comprises a connecting frame, a first connecting plate, a second connecting plate, a first connecting frame, an auxiliary rod, a connecting groove, a second connecting frame, a fixed plate, a fixed strip, a buffer spring, a movable block and a blocking rod, the first connecting plate is slidably connected into the connecting frame, the second connecting plate is slidably connected into the connecting frame, the right side face of the first connecting frame is installed on the left side face of the first connecting plate, the auxiliary rod is rotatably connected into the first connecting frame, a connecting groove is formed in the auxiliary rod, and the second connecting frame is rotatably connected to the top end of the auxiliary rod. The fixing plate is slidably connected into the second connecting plate, the left side face of the second connecting frame is installed on the right side face of the fixing plate, and the fixing strip is slidably connected into the connecting frame. According to the technical scheme, the problem that the battery is secondarily damaged in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a lead-acid battery pack with an explosion-proof structure. Background Technology

[0002] Lead-acid batteries are rechargeable batteries whose electrodes are mainly made of lead and its oxides, and whose electrolyte is sulfuric acid solution. In the discharged state, the positive electrode is mainly composed of lead dioxide and the negative electrode is mainly composed of lead. In the charged state, the positive and negative electrodes are mainly composed of lead sulfate. When using the battery, it needs to be assembled into a whole to facilitate the operator's installation.

[0003] In current battery packs, the batteries are placed close together during assembly. The batteries are then placed in a plastic casing and the lid is fastened to complete the assembly. However, the gaps between the assembled batteries are small, which means that when the battery pack is squeezed, the pressure can easily be transmitted from one battery to another through the tightly packed batteries.

[0004] In existing battery packs, the separator is first placed inside the battery box, and then the batteries are placed on both sides of the separator. This separates a group of batteries at intervals inside the box. However, the separator is prone to breakage when the battery pack is squeezed, and the broken separator fragments can cut or puncture the batteries, causing more serious accidents.

[0005] The aforementioned battery pack is prone to component breakage when subjected to compression, which can damage the battery. Therefore, we propose a lead-acid battery pack with an explosion-proof structure. Utility Model Content

[0006] This invention proposes a lead-acid battery pack with an explosion-proof structure to solve the problem of secondary damage to batteries in the prior art.

[0007] The technical solution of this utility model is as follows: A lead-acid battery pack with an explosion-proof structure, including a connecting frame, and further comprising:

[0008] The first connecting plate is slidably connected to the connecting frame, and the second connecting plate is slidably connected to the inside of the connecting frame. The right side of the first connecting frame is installed on the left side of the first connecting plate. The auxiliary rod is rotatably connected to the first connecting frame. In order for the auxiliary rod to flip upward along the first connecting frame after the battery pack is squeezed, the auxiliary rod has a connecting groove inside. The second connecting frame is rotatably connected to the top of the auxiliary rod. The fixing plate is slidably connected to the second connecting plate. The left side of the second connecting frame is installed on the right side of the fixing plate. The fixing strip is slidably connected to the connecting frame to prevent the fixing strip from being broken after the battery pack is squeezed. The buffer spring is installed on the inner wall of the top of the fixing strip. The moving block is slidably connected to the inside of the fixing strip. The blocking rod passes through the moving block.

[0009] As a preferred embodiment of the lead-acid battery pack with explosion-proof structure described in this utility model, in order to prevent bumps and knocks during battery installation, soft padding is installed on the outer surfaces of both the first connecting plate and the second connecting plate, and a fixed frame is slidably connected inside both the first connecting plate and the second connecting plate.

[0010] As a preferred embodiment of the lead-acid battery pack with explosion-proof structure described in this utility model, in order to protect the battery pack, the battery is slidably connected inside the fixing frame, and an explosion-proof plate is provided on the inner side of the fixing frame.

[0011] As a preferred embodiment of the lead-acid battery pack with explosion-proof structure described in this utility model, in order to protect the front and rear sides of the battery, an auxiliary frame is provided on the inner side of the fixing frame, and a protective net is installed inside the auxiliary frame.

[0012] As a preferred embodiment of the lead-acid battery pack with explosion-proof structure described in this utility model, in order to make it easier for operators to pick up and put in the explosion-proof cotton, a square notch is provided in the middle of the upper surface of the fixing frame, and the interior of the fixing frame is provided with explosion-proof cotton.

[0013] As a preferred embodiment of the lead-acid battery pack with explosion-proof structure of this utility model, in order for the movable block to move within a certain range, the bottom end of the buffer spring is mounted on the upper surface of the movable block, and the blocking rod is slidably connected in the connecting groove.

[0014] The working principle and beneficial effects of this utility model are as follows:

[0015] In this invention, the auxiliary rod flips upward to drive the blocking rod to slide along the connecting groove. The blocking rod drives the moving block to move upward, which compresses the buffer spring and thus blocks the auxiliary rod, preventing secondary damage to the battery after the auxiliary rod is squeezed and broken. This also reduces the movable range of the fragments after the auxiliary rod breaks.

[0016] In this invention, the first connecting frame moves to the left, causing the auxiliary rod to flip upward, which in turn causes the second connecting frame to move the fixing plate upward, dispersing the compressive force outward. This prevents the pressure from being transmitted between batteries after they are compressed, reducing the damage to each battery and improving the protective effect of the device. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the battery pack structure of this utility model;

[0019] Figure 2 This is a vertical sectional view of the battery pack structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the fixing mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the protective mechanism of this utility model in the event of an explosion.

[0022] In the diagram: 1. Connecting frame; 2. Blocking plate; 3. Fixing pin; 4. Terminal block; 5. First connecting plate; 6. Second connecting plate; 7. First connecting frame; 8. Auxiliary rod; 9. Connecting groove; 10. Second connecting frame; 11. Fixing plate; 12. Fixing strip; 13. Buffer spring; 14. Moving block; 15. Blocking rod; 16. Soft pad layer; 17. Fixing frame; 18. Battery; 19. Explosion-proof plate; 20. Auxiliary frame; 21. Protective net. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0024] like Figures 1-4As shown, this embodiment proposes a lead-acid battery pack with an explosion-proof structure, including a connecting frame 1, a first connecting plate 5, a second connecting plate 6, a first connecting frame 7, an auxiliary rod 8, a connecting groove 9, a second connecting frame 10, a fixing plate 11, a fixing strip 12, a buffer spring 13, and a moving block 14.

[0025] The first connecting plate 5 is slidably connected inside the connecting frame 1, and the second connecting plate 6 is slidably connected inside the connecting frame 1. The first connecting plate 5 and the second connecting plate 6 separate the left and right sets of batteries 18 to prevent one set of batteries 18 from being squeezed and transmitting pressure.

[0026] like Figure 4 As shown, the right side of the first connecting frame 7 is installed on the left side of the first connecting plate 5. The auxiliary rod 8 is rotatably connected inside the first connecting frame 7. The auxiliary rod 8 flips upward to drive the second connecting frame 10 to move upward. The upward movement of the second connecting frame 10 drives the fixed plate 11 to move upward. The upward movement of the fixed plate 11 squeezes the blocking plate 2. When the battery 18 is subjected to a large squeezing force, the fixed plate 11 moves upward to break through the blocking plate 2, leaving space for the battery 18 that is directly squeezed, reducing damage. The auxiliary rod 8 has a connecting groove 9 inside. The second connecting frame 10 is rotatably connected to the top of the auxiliary rod 8. The fixed plate 11 is slidably connected inside the second connecting plate 6. The left side of the second connecting frame 10 is installed on the right side of the fixed plate 11.

[0027] The fixing strip 12 is slidably connected to the connecting frame 1, and the buffer spring 13 is installed on the inner wall of the top of the fixing strip 12, such as... Figure 4 As shown, the buffer spring 13 restricts the movement range of the moving block 14. When the auxiliary rod 8 breaks, the buffer spring 13 rebounds and pushes the moving block 14 downward, so that the blocking rod 15 blocks the fragments of the broken auxiliary rod 8, preventing damage to the other battery 18. The moving block 14 is slidably connected inside the fixed strip 12, the blocking rod 15 passes through the moving block 14, the bottom end of the buffer spring 13 is installed on the upper surface of the moving block 14, and the blocking rod 15 is slidably connected in the connecting groove 9.

[0028] Both the outer surfaces of the first connecting plate 5 and the second connecting plate 6 are fitted with soft padding layers 16 to prevent bumps and knocks during battery placement. A fixing frame 17 is slidably connected inside both the first connecting plate 5 and the second connecting plate 6, and the battery 18 is slidably connected inside the fixing frame 17. Figure 3As shown, the inner side of the fixing frame 17 is provided with an explosion-proof plate 19 to prevent fragments from scattering in all directions when the battery 18 explodes. The inner side of the fixing frame 17 is provided with an auxiliary frame 20, and a protective net 21 is installed inside the auxiliary frame 20. A square notch is opened in the middle of the upper surface of the fixing frame 17. The inside of the fixing frame 17 is provided with explosion-proof cotton, which simplifies the heating process of the battery 18 explosion and effectively absorbs the impact force generated during the battery 18 explosion.

[0029] In this embodiment, as Figure 1 As shown, a baffle plate 2 is provided on the upper surface of the connecting frame 1. A fixing pin 3 passes through the upper surface of the baffle plate 2. One end of the fixing pin 3 passes through the baffle plate 2 and is threaded inside the connecting frame 1. The baffle plate 2 is placed on the upper surface of the connecting frame 1 so that the baffle plate 2 presses down the fixing strip 12. Then, the fixing pin 3 is manipulated to pass through the baffle plate 2 and insert into the connecting frame 1. The fixing pin 3 is tightened clockwise to fix the baffle plate 2. A terminal block 4 is installed on the upper surface of the baffle plate 2.

[0030] In this embodiment, when assembling the battery pack, the battery 18 is pressed against the soft padding layer 16. The four sets of fixing frames 17 are slid in along the first connecting plate 5 and the second connecting plate 6 respectively, allowing the battery 18 to enter the fixing frame 17. The explosion-proof plate 19 and the auxiliary frame 20 are filled into the gaps between the fixing frames 17. The auxiliary rod 8 is flipped downwards, causing the second connecting frame 10 to move downwards. The downward movement of the second connecting frame 10 causes the fixing plate 11 to move downwards, allowing the fixing plate 11 to slide in along the second connecting plate 6. The blocking rod 15 passes through the connecting groove 9, and the moving block 14 is fitted onto the outer end of the blocking rod 15 via the fixing strip 12. Figure 3 As shown, after the battery pack is installed, the first connecting plate 5 and the second connecting plate 6 are placed into the connecting frame 1, so that the fixing strip 12 slides in along the connecting frame 1. The blocking plate 2 is placed on the upper surface of the connecting frame 1, and the fixing pin 3 is inserted into the connecting frame 1 through the blocking plate 2 and tightened clockwise to fix the blocking plate 2.

[0031] When the battery 18 on the right is squeezed, the first connecting plate 5 moves to the left, causing the first connecting frame 7 to move to the left. The first connecting frame 7 moves to the left, causing the auxiliary rod 8 to flip upward along its interior. The auxiliary rod 8 flips upward, causing the second connecting frame 10 to move upward. The second connecting frame 10 moves upward, causing the fixing plate 11 to move upward. The fixing plate 11 moves upward and presses against the blocking plate 2, dispersing the pressure on the battery 18 on the right. At this time, as the connecting groove 9 gradually changes from tilting to vertical, the blocking rod 15 slides downward along the connecting groove 9 under the action of the buffer spring 13. As the pressure gradually increases, the fixing plate 11 moves upward and breaks through the blocking plate 2.

[0032] When the auxiliary rod 8 breaks, the buffer spring 13 rebounds and drives the moving block 14 to move downward along the fixed bar 12 to reset. The downward movement of the moving block 14 drives the blocking rod 15 to move downward, blocking the broken fragments of the auxiliary rod 8 and preventing the auxiliary rod 8 from damaging the other battery 18 during subsequent compression.

[0033] It should be noted that the explosion-proof plate 19 and the auxiliary frame 20 are installed after the fixed frame 17 slides into the first connecting plate 5 or the second connecting plate 6. The gap between the two sets of fixed frames 17 in the upper layer is adapted to the size of the explosion-proof plate 19 and the auxiliary frame 20. It is only necessary to move the explosion-proof plate 19 and the auxiliary frame 20 to the inside of the fixed frame 17. In the initial state, the fixed plate 11 is a distance away from the lower surface of the blocking plate 2. Therefore, when the fixed plate 11 moves upward, it first blocks the blocking plate 2, and then breaks through the blocking plate 2 as the pressure gradually increases.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A lead-acid battery pack with an explosion-proof structure, comprising a connecting frame (1), characterized in that, Also includes: A first connecting plate (5) is slidably connected inside the connecting frame (1), and a second connecting plate (6) is slidably connected inside the connecting frame (1). The first connecting frame (7) is mounted on the right side of the first connecting plate (5) on the left side. An auxiliary rod (8) is rotatably connected to the first connecting frame (7), and a connecting groove (9) is provided inside the auxiliary rod (8); The second connecting frame (10) is rotatably connected to the top of the auxiliary rod (8); A fixing plate (11) is slidably connected to the second connecting plate (6), and the left side of the second connecting frame (10) is installed on the right side of the fixing plate (11); A fixing strip (12) is slidably connected within the connecting frame (1); A buffer spring (13) is installed on the inner wall of the top of the fixing bar (12); A movable block (14) is slidably connected inside the fixed strip (12); A blocking rod (15) is inserted inside the movable block (14).

2. The lead-acid battery pack with explosion-proof structure according to claim 1, characterized in that, Both the first connecting plate (5) and the second connecting plate (6) have a soft pad layer (16) installed on their outer surfaces, and both the first connecting plate (5) and the second connecting plate (6) have a fixed frame (17) slidably connected inside.

3. The lead-acid battery pack with explosion-proof structure according to claim 2, characterized in that, The battery (18) is slidably connected inside the fixed frame (17), and an explosion-proof plate (19) is provided on the inner side of the fixed frame (17).

4. The lead-acid battery pack with explosion-proof structure according to claim 3, characterized in that, The inner side of the fixed frame (17) is provided with an auxiliary frame (20), and a protective net (21) is installed inside the auxiliary frame (20).

5. The lead-acid battery pack with explosion-proof structure according to claim 4, characterized in that, A square notch is provided in the middle of the upper surface of the fixing frame (17), and explosion-proof cotton is provided inside the fixing frame (17).

6. The lead-acid battery pack with explosion-proof structure according to claim 1, characterized in that, The bottom end of the buffer spring (13) is mounted on the upper surface of the moving block (14), and the blocking rod (15) is slidably connected in the connecting groove (9).

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