Stably-installed lead-acid battery pack for electric vehicle

Abstract

The invention discloses an electric vehicle lead-acid battery pack stable in installation, and relates to the technical field of lead-acid batteries, a battery box is arranged on a bottom plate, a placement groove is formed in the battery box, four groups of lead-acid batteries with the same structure are placed in an inner cavity of the placement groove, and pressing plates are arranged at the tops of the two groups of lead-acid batteries on the left side and the two groups of lead-acid batteries on the right side respectively; according to the electric vehicle cover plate, the length design of the sliding strips and the sliding grooves in the cover plate facilitates disassembly and assembly of the battery box, meanwhile, by means of the arrangement of the limiting assemblies, good stability is provided for the cover plate, it is guaranteed that the phenomenon that the cover plate slides off in the bumpy running process of an electric vehicle is avoided, and the service life of the electric vehicle is prolonged. And the two groups of pressing plates are matched with the pressure regulating assembly to perform reasonable tightening operation on the lead-acid battery, so that the stability of the lead-acid battery is also ensured, and the matching of the regulating screw rod of the pressure regulating assembly and the pressing assembly also enables the pressing and rising operation to be simple.

Description

Technical Field

[0001] The invention relates to the technical field of lead-acid batteries, in particular to a stably installed lead-acid battery pack for electric vehicles. Background Art

[0002] Lead-acid batteries use lead and lead oxide as the main active substances and sulfuric acid solution as the electrolyte. When charging, the positive and negative electrodes of the battery react with the sulfuric acid in the electrolyte to convert into lead sulfate, while storing energy. When discharging, these chemical reactions are reversed and the battery releases the stored electrical energy. With the development of technology, new batteries such as lithium-ion batteries are gradually emerging, but in some application scenarios, lead-acid batteries are still an indispensable choice;

[0003] For example, the prior art application number CN202211317957.X provides a lead-acid battery pack for powering an electric vehicle, comprising a battery slot, a rear end vertical plate is provided at one end of the top of the battery slot, the battery slot is fixedly connected to the rear end vertical plate, a clamping hole is provided at one side of the top of the rear end vertical plate, a front end vertical plate is provided at the other end of the top of the battery slot, the battery slot is fixedly connected to the front end vertical plate, a battery top cover is provided inside the battery slot, a fixing gasket is provided at one side of the top of the battery top cover, and the connecting terminal passes through the battery top cover and is fixedly connected;

[0004] The above-mentioned prior art is known through actual usage. It is mainly through the provision of a battery cover, an active card connector, a rear end vertical plate, a card connection cavity, a front end vertical plate, and an active card connector, which is conducive to connecting the battery, making the battery connection more stable and realizing the fixation of the battery cover; however, it is found during use that the battery cover is connected to the card connection plate in the card connection cavity through the active card connector. This fixing method is prone to loosening during the bumpy driving of the electric vehicle, resulting in misalignment of the battery cover and accidents. At the same time, the lead-acid batteries in the battery slot are placed side by side, which are also prone to collision when the electric vehicle is driving bumpy. For this reason, we have improved the above-mentioned prior art according to actual usage. Summary of the invention

[0005] The object of the present invention is to provide a lead-acid battery pack for electric vehicles with stable installation, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A stably installed lead-acid battery pack for electric vehicles comprises a bottom plate, a battery box is arranged on the bottom plate, a placement slot is provided on the battery box, four groups of lead-acid batteries with the same structure are placed in the inner cavity of the placement slot, a pressure plate is arranged on the top of the two groups of lead-acid batteries on the left and the two groups of lead-acid batteries on the right, and four groups of voltage regulating components with the same structure are arranged at the bottom of each group of pressure plates;

[0008] A cover plate is slidably arranged on the top of the battery box, and two sets of slide bars are symmetrically arranged on both sides of the cover plate. Limiting components are installed on both sides of the outer walls of the top of the rear side of the battery box, and the top of the limiting component abuts against the outer wall of the cover plate;

[0009] Straight rods are installed at the bottom of the two groups of pressure plates, and the two groups of straight rods are connected by connecting cross rods. The bottoms of the two groups of straight rods are connected with reinforcing ribs, and the reinforcing ribs are arranged in the inner cavity of the pallet. The inner cavity of the pallet is divided into four groups of accommodating grooves with the same structure, and gaskets are arranged at the four corners of the bottom of each group of accommodating grooves, and through grooves are opened on the accommodating grooves.

[0010] Further: the pressure regulating assembly includes a support block arranged on the top of the pressure plate, the top of the support block is threadedly connected with an adjusting screw, and the adjusting screw passes through the support block and is threadedly connected with the lower pressure assembly, a limiting ring is arranged on the upper outer wall of the adjusting screw, a circular through hole is opened in the support block, and a limiting circular groove matching the upper limit ring of the adjusting screw is arranged in the through hole, and a concave groove matching the lower pressure assembly is opened at the bottom of the pressure plate.

[0011] Further: the pressing assembly includes a connecting block connected to the concave groove of the pressing plate, two groups of connecting plates with the same structure are symmetrically arranged on both sides of the connecting block, rubber plates are evenly arranged on the bottom of the connecting plates, and a threaded through hole matching the adjusting screw is opened on the connecting block.

[0012] Furthermore: the limiting component includes a fixed block, the inner cavity of the fixed block is movably connected with a top block, both sides of the bottom of the top block are provided with guide rods, and springs are sleeved on the guide rods.

[0013] Furthermore: the top of the spring abuts against the bottom of the top block, and the bottom of the spring abuts against the bottom of the inner cavity of the fixed block, and the bottom of the inner cavity of the fixed block is provided with a guide groove matching the guide rod.

[0014] Further: the length of the slide bar is smaller than the width of the cover plate, and slide grooves matching the slide bar are provided on both sides of the top of the battery box.

[0015] Furthermore: the reinforcing ribs are arranged in a cross shape at the bottom of the inner cavity of the tray, and the gaskets are circular gaskets made of rubber, and each four groups of gaskets are arranged at the four corners of the bottom of the lead-acid battery.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention facilitates disassembly and assembly with the battery box by designing the length of the slide bar and the slide groove on the cover plate. With the help of the setting of the limit assembly, the cover plate is provided with better stability to ensure that the cover plate will not slip during the bumpy driving of the electric vehicle. The two sets of pressure plates cooperate with the voltage regulating assembly to reasonably tighten the lead-acid battery, which also ensures the stability of the lead-acid battery. In addition, the cooperation of the adjusting screw of the voltage regulating assembly and the pressing assembly also makes the pressing and lifting operations simple.

[0018] 2. With respect to other problems pointed out in the background technology, the solutions thereof are explained. In the present invention, the through groove opened at the bottom of the tray reduces a part of the weight of the device and can play a certain role in heat dissipation. The coordinated use of the straight rod and the connecting cross rod provides supporting force and stable downward pulling force to the pressure plate. The rubber skin evenly laid under the connecting sheet protects the lead-acid battery from damage after compression, thereby effectively protecting the lead-acid battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 It is a rear view of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the tray of the present invention;

[0022] Figure 4 For the present invention Figure 3 A magnified view of the structure;

[0023] Figure 5 This is a schematic diagram of the structure of the pressing assembly of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the practical limit assembly.

[0025] In the figure: 1. bottom plate; 2. battery box; 3. cover plate; 4. placement slot; 5. lead-acid battery; 6. pressure plate; 7. slide bar; 8. voltage regulating assembly; 81. support block; 82. adjusting screw; 83. pressing assembly; 831. connecting block; 832. connecting sheet; 833. rubber sheet; 834. threaded hole; 9. limit assembly; 91. fixing block; 92. top block; 93. guide rod; 94. spring; 10. straight rod; 11. reinforcing rib; 12. tray; 13. through slot; 14. connecting cross bar. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0027] See also Figure 1-6 The present invention provides a technical solution: a stably installed lead-acid battery pack for electric vehicles, comprising:

[0028] A bottom plate 1 is provided with a battery box 2, in which four groups of lead-acid batteries 5 for use in an electric vehicle are placed, which are connected to each other by wires. The specific structure and working principle are prior art and will not be described in detail. A placement slot 4 is provided on the battery box 2, and the size of the placement slot 4 is reasonably designed according to the structural standard of the electric vehicle. Four groups of lead-acid batteries 5 with the same structure are placed in the inner cavity of the placement slot 4. The tops of the two groups of lead-acid batteries 5 on the left and the two groups of lead-acid batteries 5 on the right are respectively provided with pressure plates 6, and the bottom of each group of pressure plates 6 is provided with four groups of voltage regulating components 8 with the same structure;

[0029] In this embodiment, refer to Figure 1 The battery box 2 is installed at the designated position of the electric vehicle, and the eight voltage regulating components 8 under the pressure plate 6 press the battery top cover of the lead-acid battery 5 to ensure that the electric vehicle has good stability during driving.

[0030] The cover plate 3 is slidably arranged on the top of the battery box 2, and two sets of slide bars 7 are symmetrically arranged on both sides of the cover plate 3. The outer walls on both sides of the top of the rear side of the battery box 2 are both installed with limit components 9, and the top of the limit components 9 is in contact with the outer wall of the cover plate 3;

[0031] In this embodiment, refer to Figure 1 and Figure 2 The cover plate 3 can be flexibly plugged into the top of the battery box 2 with the help of two sets of slide bars 7, and the opening and closing operations are simple. The two sets of limiting components 9 behind the battery box 2 automatically rebound to limit the cover plate 3 after the cover plate 3 is inserted into the battery box 2 and aligned, ensuring that it will not slide and will not slip during the driving of the electric vehicle.

[0032] Straight rods 10 are installed at the bottom of the two groups of pressure plates 6, and the two groups of straight rods 10 are connected by connecting cross rods 14. The bottoms of the two groups of straight rods 10 are connected with reinforcing ribs 11 to increase the toughness and stability of the tray 12. The reinforcing ribs 11 are arranged in the inner cavity of the tray 12. The inner cavity of the tray 12 is divided into four groups of accommodating grooves with the same structure for placing lead-acid batteries 5. The sizes of the four groups of accommodating grooves are adapted to the sizes of the lead-acid batteries 5, and gaskets are arranged at the four corners of the bottom of each group of accommodating grooves, and a through groove 13 is opened on the accommodating groove.

[0033] In this embodiment, refer to Figure 1 and Figure 3 The straight rods 10 welded and fixed at the center of the two groups of pressure plates 6 provide effective support for the pressure plates 6, and the connection of the two groups of straight rods 10 through the connecting cross bars 14 also ensures good stability. The four groups of accommodating grooves on the tray 12 with reinforcing ribs 11 are used to place lead-acid batteries 5. The use of the through grooves 13 not only reduces the weight of the tray 12 but also plays a good role in ventilation and heat dissipation.

[0034] Among them, preferably, the voltage regulating assembly 8 includes a support block 81 arranged on the top of the pressure plate 6, the top of the support block 81 is threadedly connected with an adjusting screw 82, and the adjusting screw 82 passes through the support block 81 and is threadedly connected to the lower pressure assembly 83, a limiting ring is arranged on the upper outer wall of the adjusting screw 81, a circular through hole is opened in the support block 81, and a limiting circular groove matching the upper limiting ring of the adjusting screw 82 is arranged in the through hole, the matching connection between the limiting ring and the limiting circular groove can ensure that the adjusting screw 82 will not be displaced with the support block 81 while rotating, and a concave groove matching the lower pressure assembly 83 is opened at the bottom of the pressure plate 6, which can facilitate the lower pressure assembly 83 to move up and down in the vertical direction below the pressure plate 6, thereby realizing the clamping operation of the lead-acid battery 5.

[0035] In this embodiment, refer to Figure 1 , Figure 3 and Figure 4 Four groups of voltage regulating components 8 are arranged under each group of pressure plates 6 to perform a compression operation on the lead-acid batteries 5 in the area. The adjusting screw 82 is rotated. Under the support and limiting effect of the support block 81, the pressing component 83 threadedly connected to the adjusting screw 82 moves up and down in the concave groove under the pressure plate to achieve the compression and release operation of the lead-acid battery 5. In addition, due to the locking function of the thread, it can be guaranteed that the compression operation has a good stability effect.

[0036] Preferably, the pressing assembly 83 includes a connecting block 831 connected to the concave groove of the pressure plate 6, and the connecting block 831 is slidably connected to the concave groove. When designing, by limiting the length of the adjusting screw 82 and the maximum threaded connection path of the threaded hole in the connecting block 831, it can be ensured that the connecting block 831 will not fall off from the concave groove. Two groups of connecting pieces 832 with the same structure are symmetrically arranged on both sides of the connecting block 831 to press the lead-acid battery 5. Rubber sheets 833 are evenly arranged on the bottom of the connecting piece 832 to ensure that the lead-acid battery 5 will not be damaged due to excessive pressing force. A threaded through hole matching the adjusting screw 82 is opened on the connecting block 831.

[0037] In this embodiment, please refer to Figure 1 , Figure 4 and Figure 5When the adjusting screw 82 rotates, the connecting block 831 threadedly connected thereto moves downward in the concave groove, and the connecting piece 832 gradually moves toward the battery cover of the lead-acid battery 5 until the rubber sheet 833 is pressed against the top of the battery cover of the lead-acid battery 5 to tighten it.

[0038] Preferably, the limiting assembly 9 includes a fixed block 91, and a top block 92 is movably inserted into the inner cavity of the fixed block 91. The top block 92 has an inverted T-shaped structure and can have its own limiting function. Guide rods 93 are provided on both sides of the bottom of the top block 92. The guide rods 93 play a role of sliding and limiting, and a spring 94 is provided on the guide rods 93.

[0039] The top of the spring 94 abuts against the bottom of the top block 92 , and the bottom of the spring 94 abuts against the bottom of the inner cavity of the fixing block 91 . The bottom of the inner cavity of the fixing block 91 is provided with a guide groove matching the guide rod 93 .

[0040] In this embodiment, please refer to Figure 1 , Figure 2 and Figure 6 , press down the top block 92, the top block 92 moves downward under the action of the guide rod, when the top of the top block 92 is flush with the top of the fixing block 91, the cover plate 3 slides into the top of the battery box 2, and when the rear end position of the cover plate 3 is parallel to the end of the battery box 2, the top block 92 automatically rises through the rebound force of the spring 94, and clamps the rear end of the cover plate 3, which plays a limiting role and ensures the stability of the cover plate 3.

[0041] Preferably, the length of the slide bar 7 is smaller than the width of the cover plate 3, and slide grooves matching the slide bar 7 are provided on both sides of the top of the battery box 2. Figure 1 and Figure 2 The length of the slide bar 7 is smaller than the width of the cover plate 3 , and the length of the slide groove is matched with the length of the slide bar 7 , so that it can be ensured that the cover plate 3 will not slide out after sliding into the battery box 2 .

[0042] Preferably, the reinforcing ribs 11 are cross-shaped and arranged at the bottom of the inner cavity of the tray 12, and the gaskets are circular gaskets made of rubber. Each four groups of gaskets are arranged at the four corners of the bottom of the lead-acid battery 5 to provide a certain degree of shock absorption effect to the lead-acid battery 5.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lead-acid battery pack for electric vehicles with stable installation, characterized in that: include, A bottom plate (1), a battery box (2) is arranged on the bottom plate (1), a placement groove (4) is provided on the battery box (2), four groups of lead-acid batteries (5) of the same structure are placed in the inner cavity of the placement groove (4), a pressure plate (6) is arranged on the top of the two groups of lead-acid batteries (5) on the left and the two groups of lead-acid batteries (5) on the right, and four groups of voltage regulating components (8) of the same structure are arranged on the bottom of each group of pressure plates (6); A cover plate (3), the cover plate (3) being slidably arranged on the top of the battery box (2), and two groups of slide bars (7) being symmetrically arranged on both sides of the cover plate (3), and limiting components (9) being installed on both sides of the outer walls of the top of the rear side of the battery box (2), and the top of the limiting component (9) is in contact with the outer wall of the cover plate (3); The bottoms of the two groups of pressure plates (6) are both equipped with straight rods (10), the two groups of straight rods (10) are connected by a connecting cross rod (14), and the bottoms of the two groups of straight rods (10) are connected with reinforcing ribs (11), the reinforcing ribs (11) are arranged in the inner cavity of the tray (12), the inner cavity of the tray (12) is divided into four groups of accommodating grooves with the same structure, and gaskets are arranged at the four corners of the bottom of each group of accommodating grooves, and the accommodating grooves are provided with through grooves (13).

2. The stably installed lead-acid battery pack for electric vehicles according to claim 1, characterized in that: The pressure regulating assembly (8) comprises a support block (81) arranged on the top of the pressure plate (6); the top of the support block (81) is threadedly connected with an adjusting screw (82), and the adjusting screw (82) passes through the support block (81) and is threadedly connected with the lower pressure assembly (83); a limit ring is arranged on the upper outer wall of the adjusting screw (81); a circular through hole is provided in the support block (81), and a limit circular groove matching the limit ring of the adjusting screw (82) is provided in the through hole; and a concave groove matching the lower pressure assembly (83) is provided at the bottom of the pressure plate (6).

3. The stably installed lead-acid battery pack for electric vehicles according to claim 2, characterized in that: The pressing assembly (83) comprises a connecting block (831) connected to the concave groove of the pressing plate (6), two groups of connecting plates (832) with the same structure are symmetrically arranged on both sides of the connecting block (831), rubber sheets (833) are evenly arranged on the bottom of the connecting plates (832), and a threaded through hole matching the adjusting screw (82) is opened on the connecting block (831).

4. The stably installed lead-acid battery pack for electric vehicles according to claim 1, characterized in that: The limiting assembly (9) comprises a fixed block (91), the inner cavity of the fixed block (91) is movably connected with a top block (92), both sides of the bottom of the top block (92) are provided with guide rods (93), and the guide rods (93) are sleeved with springs (94).

5. The stably installed lead-acid battery pack for electric vehicles according to claim 4, characterized in that: The top of the spring (94) abuts against the bottom of the top block (92), and the bottom of the spring (94) abuts against the bottom of the inner cavity of the fixed block (91). The bottom of the inner cavity of the fixed block (91) is provided with a guide groove matching the guide rod (93).

6. The stably installed lead-acid battery pack for electric vehicles according to claim 1, characterized in that: The length of the slide bar (7) is smaller than the width of the cover plate (3), and slide grooves matching the slide bar (7) are provided on both sides of the top of the battery box (2).

7. The stably installed lead-acid battery pack for electric vehicles according to claim 1, characterized in that: The reinforcing ribs (11) are arranged in a cross shape at the bottom of the inner cavity of the tray (12), and the gaskets are circular gaskets made of rubber. Each set of four gaskets are arranged at the four corners of the bottom of the lead-acid battery (5).

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