A battery protection device for electric bicycle

Abstract

The present application discloses an electric bicycle battery protection device, which relates to the technical field of batteries and comprises a battery shell, wherein a top cover is arranged at the top of the battery shell, a handle is movably connected to the middle part of the top cover, and a pole is arranged on the upper surface of the top cover. A sealing component is used to reduce dust from penetrating into the interior of the battery through a gap between the battery shell and the top cover, thereby avoiding contamination of battery panels and electrolyte, and prolonging the service life of the battery. The battery shell and the top cover can be quickly separated by a self-locking component, thereby facilitating the later maintenance of the battery and improving the maintenance efficiency of the battery. The protection component can reduce the damage to the battery caused by bumps or collisions, has a multi-directional buffering effect, avoids damage to the internal structure, and prevents the battery from burning due to an internal short circuit. At the same time, battery separator assemblies of different specifications can be clamped and fixed according to needs.

Description

Technical Field

[0001] The present application relates to the technical field of batteries, and in particular to a battery protection device for electric bicycles. Background Art

[0002] An electric bicycle is a vehicle that uses batteries as auxiliary energy and is equipped with motors, controllers, batteries, handlebars and other operating components and display instrument systems on the basis of ordinary bicycles. Electric vehicle batteries generally refer to batteries used in electric bicycles, and their function is to provide power for electric vehicles. The most widely used is the valve-controlled sealed lead-acid battery, because lead-acid batteries are low in cost and cost-effective, but batteries need certain protection during use to ensure the battery life.

[0003] The existing technology still has the following problems:

[0004] 1. The existing battery has poor sealing between the battery shell and the top cover, which makes it easy for dust to penetrate into the battery through the gap between the battery shell and the top cover, causing the battery plates and electrolyte to be contaminated, thus affecting the battery life.

[0005] 2. Existing batteries often use bolts to fix the battery shell and top cover, which takes a lot of time to disassemble and assemble the battery. This results in time-consuming and labor-intensive maintenance and repair of the electric vehicle battery in the later stage, affecting the battery maintenance efficiency.

[0006] 3. Electric vehicles are prone to bumps during driving, and when an emergency occurs and the electric vehicle collides, the battery will be subjected to a large impact force, causing internal structural damage. In severe cases, it will cause an internal short circuit and heat to cause the battery to burn, causing personal safety. In addition, different types of batteries have different sizes of battery separator assemblies, making it difficult to ensure that the battery separator assembly can be stably installed inside the battery casing. Summary of the invention

[0007] The present application provides an electric bicycle battery protection device, which solves the problems in the prior art that the sealing between the battery casing and the top cover is poor, a lot of time is consumed in the disassembly and assembly of the battery, the electric vehicle is prone to bumps during driving, and when the electric vehicle collides in an emergency, the battery will be subjected to a large impact force, resulting in internal structural damage. The application reduces the penetration of dust into the interior of the battery through the gap between the battery casing and the top cover, can quickly separate the battery casing and the top cover, can reduce the damage to the battery caused by bumps or collisions, has a multi-directional buffering effect, avoids internal structural damage, and prevents internal short circuits from causing battery combustion.

[0008] The present application provides an electric bicycle battery protection device, comprising a battery shell, a top cover is provided at the top of the battery shell, a handle is movably connected to the middle part of the top cover, a pole is provided on the upper surface of the top cover, a sealing assembly is provided at the junction of the battery shell and the top cover, self-locking assemblies are provided on both sides of the top cover, a valve block is slidably mounted on the outer surface of the battery shell, there are two valve blocks, a protection assembly is provided in the inner cavity of the battery shell, a battery partition assembly is provided in the middle part of the protection assembly, the protection assembly comprises a bottom plate, side plates are fixedly mounted on both sides of the bottom plate, a first protection mechanism is fixedly mounted on the outer surface of the side plate, and one side plate has two first protection mechanisms, a clamping mechanism is provided at the bottom end of the side plate, a first slide groove is provided on the outer surface of the bottom plate, a second slide groove is provided on the outer surface of the bottom plate, a second protection mechanism is provided at the bottom end of the bottom plate, and the side plate and the battery shell are slidably connected.

[0009] Furthermore, the sealing assembly includes a first sealing sleeve, which is fixedly connected to the top end of the battery housing, and a second sealing sleeve is fixedly installed on the bottom end of the top cover. The upper surface of the first sealing sleeve and the lower surface of the second sealing sleeve are both provided with a receiving groove, and the inner wall of the receiving groove is fixedly connected to a first spring, one end of the first spring is fixedly connected to a sealing ring, and the sealing ring and the receiving groove are slidably connected, and the sealing ring on the first sealing sleeve is in close contact with the sealing ring on the second sealing sleeve when the battery housing and the top cover are engaged.

[0010] Furthermore, the self-locking component includes a connecting seat, a limiting groove is provided on the bottom side of the connecting seat, a pressure rod is slidably connected to the inner cavity of the limiting groove, the pressure rod is fixedly connected to the limiting block near the middle part of the connecting seat, a second spring is sleeved on the outer surface of the pressure rod, the second spring is located between the limiting block and the inner wall of the connecting seat, a self-locking mechanism is provided in the middle inner cavity of the connecting seat, and the self-locking mechanism is fixedly connected to the battery housing.

[0011] Furthermore, the self-locking mechanism includes a fixed rod, a limiting disk is fixedly installed on the upper end of the fixed rod, a movable groove is opened in the middle part of the fixed rod, the outer surface of the fixed rod is slidably connected with the movable disk, the upper surface of the movable disk is fixedly installed with a pull rod, the upper surface of the pull rod is fixedly installed with a pull ring, and the outer surface of the pull rod is sleeved with a third spring.

[0012] Furthermore, the movable disk and the pull rod are both slidably connected to the movable groove, the third spring is located between the movable disk and the inner wall of the fixed rod, the bottom end of the third spring is fixedly connected to the movable disk, the bottom end of the fixed rod is fixedly connected to the battery housing, the limit block and the limit disk are engaged, the lower surface of the limit block is an inclined surface, the upper surface of the limit disk is an inclined surface, and the lower surface of the movable disk is an inclined surface.

[0013] Furthermore, the first protective mechanism includes a connecting rod, a movable seat is sleeved on the outer surface of the connecting rod, a first fixed block is fixedly installed on the outer surface of the connecting rod, a connecting strip is movably connected to the outer surface of the movable seat, a connecting plate is fixedly installed on the outer surface of the side plate, a movable seat is fixedly installed on the side of the connecting plate away from the side plate, a fourth spring is sleeved on the middle part of the connecting rod, and a fifth spring is fixedly connected to the side of the connecting plate away from the side plate.

[0014] Furthermore, the movable seat and the connecting rod are slidably connected, and two movable seats are arranged on one connecting rod, the fourth spring is located between the two movable seats, one end of the connecting strip away from the movable seat is movably connected to the movable seat, the two ends of the connecting rod are fixedly connected to the upper and lower inner walls of the battery casing, and one end of the fifth spring away from the connecting plate is fixedly connected to the first fixed block.

[0015] Further, the clamping mechanism includes a first threaded rod, a conveyor belt is sleeved on the outer surface of the first threaded rod, and there are two first threaded rods on each base plate, the first threaded rods are linked by the conveyor belt, first rings are sleeved on both ends of the first threaded rod, the first ring and the first threaded rod are connected by threads, and the threads of the two first rings on the same first threaded rod are opposite, a first clamping block is fixedly installed on the outer surface of the first ring, the first clamping block is slidably connected to the first slide groove, the side of the first threaded rod close to the conveyor belt is located on the side of the valve block, and one of the first threaded rods is located at the valve block, and the first threaded rod is rotatably connected to the side plate.

[0016] Furthermore, the second protective mechanism includes a buffer frame, a second fixed block is fixedly installed in the middle part of the buffer frame, a second threaded rod is rotatably connected to the inner cavity of the second fixed block, an adjustment groove is opened on the outer surface of the buffer frame, second rings are provided at both ends of the second threaded rod, a second clamping block is fixedly installed on the upper surface of the second ring, buffer rods are fixedly installed on both sides of the buffer frame, and a sixth spring is sleeved on the outer surface of the buffer rod.

[0017] Furthermore, the second threaded rod and the second collar are connected by threads, and the threads of the two second collars on the same second threaded rod are opposite, the second clamping block and the adjustment groove are slidably connected, the second clamping block and the second slide groove are slidably connected, the buffer rod and the two ends of the base plate are slidably connected, and the head of the second threaded rod is located at the valve block.

[0018] The technical solution provided by this application has at least the following technical effects or advantages:

[0019] 1. The use of a sealing component effectively solves the problem that the existing battery has poor sealing between the battery shell and the top cover, which makes it easy for dust to penetrate into the interior of the battery through the gap between the battery shell and the top cover, causing the battery plate and the electrolyte to be contaminated, thereby affecting the battery life. The present invention reduces the possibility of dust penetrating into the interior of the battery from the gap between the battery shell and the top cover through a sealing component, thereby avoiding contamination of the battery plate and the electrolyte and increasing the battery life.

[0020] 2. The use of a self-locking component effectively solves the problem that the battery shell and the top cover of the existing battery are often fixed by bolts, which requires a lot of time to disassemble and assemble the battery, resulting in time-consuming and labor-intensive maintenance and repair of the electric vehicle battery in the later stage, affecting the battery maintenance efficiency. The present invention can quickly disassemble the battery shell and the top cover through the self-locking component, which is convenient for the later maintenance of the battery and improves the battery maintenance efficiency.

[0021] 3. The use of protective components effectively solves the problem of electric vehicles being easily bumped during driving. When an emergency occurs and the electric vehicle collides, the battery will be subjected to a large impact force, resulting in internal structural damage. In severe cases, it will cause internal short circuits and heat to cause battery combustion, causing personal safety. In addition, different types of batteries have different sizes of battery separator assemblies, making it difficult to ensure that the battery separator assembly can be stably installed inside the battery housing. The present invention can reduce the damage caused by bumps or collisions to the battery through protective components, has a multi-directional buffering effect, avoids internal structural damage, and prevents internal short circuits from causing battery combustion. At the same time, battery separator assemblies of different specifications can be clamped and fixed according to needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present application;

[0023] Figure 2 This is a schematic diagram of the handle structure in Example 1 of the present application;

[0024] Figure 3 This is a schematic diagram of the sealing assembly structure in Example 1 of the present application;

[0025] Figure 4 For Example 1 of this application Figure 3 A schematic diagram of the structure enlargement at the center A;

[0026] Figure 5 This is a schematic cross-sectional view of the self-locking component structure in Example 1 of the present application;

[0027] Figure 6 This is a schematic diagram of the limit block structure in Example 1 of the present application;

[0028] Figure 7 This is a schematic diagram of the self-locking mechanism structure in Example 1 of the present application;

[0029] Figure 8 This is a schematic diagram of the valve block structure in Example 1 of the present application;

[0030] Fig. 9 This is a schematic cross-sectional view of the battery housing structure in the second embodiment of the present application;

[0031] Fig.10 This is a schematic diagram of the protection component structure in the second embodiment of the present application;

[0032] Fig.11 For Example 2 of this application Fig.10 A schematic diagram of the structure enlarged at B in the middle;

[0033] Fig.12 This is a schematic diagram of the bottom plate structure in Example 2 of the present application;

[0034] Fig.13 This is a schematic diagram of the conveyor belt structure in Example 2 of the present application;

[0035] Fig.14 This is a schematic diagram of the structure of the second protection mechanism in the second embodiment of the present application;

[0036] Fig.15 For Example 2 of this application Fig.14 Enlarged schematic diagram of the structure at C in the middle.

[0037] In the figure: 1. battery housing; 2. top cover; 3. handle; 4. pole; 5. sealing assembly; 51. first sealing sleeve; 52. second sealing sleeve; 53. first spring; 54. sealing ring; 6. self-locking assembly; 61. connecting seat; 62. limiting groove; 63. pressure rod; 64. limiting block; 65. second spring; 66. self-locking mechanism; 661. fixing rod; 662. limiting plate; 663. moving groove; 664. moving plate; 665. pull rod; 666. pull ring; 667. third spring; 7. valve block; 8. protection assembly; 81. bottom plate; 82. side plate; 83. first protection mechanism; 831. connecting seat; 832. limit plate; 833. limit plate; 834. limit plate; 835. limit plate; 836. limit plate; 837. limit plate; 838. limit plate; 839. limit plate; 840. limit plate; 841. limit plate; 842. limit plate; 843. limit plate; 844. limit plate; 845. limit plate; 846. limit plate; 847. limit plate; 848. limit plate; 849. limit plate; 850. limit plate; 851. limit plate; 852. limit plate; 853. limit plate; 854. limit plate; 855. limit plate; 856. limit plate; 857. limit plate; 858. limit plate; 859. limit plate; 860. limit plate; 861. limit plate; 862. limit plate; 863. limit plate; 864. limit plate; 865. limit plate; 866. limit plate; 867. limit plate; 868. limit plate; Connecting rod; 832, movable seat; 833, first fixed block; 834, connecting strip; 835, connecting plate; 836, movable seat; 837, fourth spring; 838, fifth spring; 84, clamping mechanism; 841, first threaded rod; 842, conveyor belt; 843, first sleeve; 844, first clamping block; 85, first slide groove; 86, second slide groove; 87, second protective mechanism; 871, buffer frame; 872, second fixed block; 873, second threaded rod; 874, adjusting groove; 875, second sleeve; 876, second clamping block; 877, buffer rod; 878, sixth spring; 9, battery separator assembly. DETAILED DESCRIPTION

[0038] In case of poor sealing between the battery shell and the top cover, the present invention reduces the risk of dust penetrating into the interior of the battery through the gap between the battery shell and the top cover by means of a sealing component; in case the battery shell and the top cover are usually fixed by bolts, which consumes a lot of time in disassembling and assembling the battery, the present invention can quickly separate the battery shell and the top cover by means of a self-locking component, thus facilitating the later maintenance of the battery; in case an electric vehicle is prone to bumping during driving and an electric vehicle collides in an emergency, the battery will be subjected to a large impact force, resulting in internal structural damage, the present invention can reduce the damage to the battery caused by bumps or collisions by means of a protective component, thus having a multi-directional buffering effect.

[0039] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0040] Embodiment 1

[0041] See also Figure 1 , Figure 2 and Figure 8As shown, a battery protection device for an electric bicycle comprises a battery housing 1, a top cover 2 is arranged at the top of the battery housing 1, a handle 3 is movably connected to the middle part of the top cover 2, a pole 4 is arranged on the upper surface of the top cover 2, a sealing component 5 is arranged at the junction of the battery housing 1 and the top cover 2, self-locking components 6 are arranged on both sides of the top cover 2, a valve block 7 is slidably mounted on the outer surface of the battery housing 1, and there are two valve blocks 7, a protection component 8 is arranged in the inner cavity of the battery housing 1, and a battery separator assembly 9 is arranged in the middle part of the protection component 8, The top cover 2 is used to cover the battery casing 1, the handle 3 is convenient for carrying the entire battery, the pole 4 is connected to the external conductor, the sealing component 5 seals the battery casing 1 and the top cover 2 to prevent dust from entering the interior of the battery casing 1 and prevent the battery partition assembly 9 from being contaminated, the self-locking component 6 makes the connection between the battery casing 1 and the top cover 2 stable, and the battery casing 1 and the top cover 2 are easy to disassemble, so that the battery casing 1 and the top cover 2 can be quickly separated, and the valve block 7 can be used to expose the protection component 8 to facilitate the adjustment of the protection component 8.

[0042] See also Figure 2 , Figure 3 and Figure 4 As shown, the sealing assembly 5 includes a first sealing sleeve 51, the first sealing sleeve 51 is fixedly connected to the top end of the battery housing 1, and the second sealing sleeve 52 is fixedly installed at the bottom end of the top cover 2. The upper surface of the first sealing sleeve 51 and the lower surface of the second sealing sleeve 52 are both provided with a receiving groove, and the inner wall of the receiving groove is fixedly connected to a first spring 53, and one end of the first spring 53 is fixedly connected to a sealing ring 54, and the sealing ring 54 is slidably connected to the receiving groove. When the battery housing 1 and the top cover 2 are engaged, the sealing ring 54 on the first sealing sleeve 51 and the sealing ring 52 on the second sealing sleeve 52 are The sealing ring 54 is in close contact. When the battery casing 1 and the top cover 2 are connected, the first sealing sleeve 51 and the second sealing sleeve 52 are close to each other. At this time, the sealing rings 54 on the first sealing sleeve 51 and the second sealing sleeve 52 are close to each other until they are squeezed together. At this time, the sealing rings 54 squeeze the first spring 53 so that the sealing rings 54 are stored in the storage groove. At this time, the sealing rings 54 are in close contact with each other, and the gap between the battery casing 1 and the top cover 2 is blocked to prevent dust from entering the interior of the battery casing 1 and polluting the battery partition assembly 9.

[0043] See also Figure 5 and Figure 6As shown, the self-locking component 6 includes a connecting seat 61, a limiting groove 62 is provided on the bottom side of the connecting seat 61, and the inner cavity of the limiting groove 62 is slidably connected with a pressure rod 63, and the pressure rod 63 is fixedly connected to the limiting block 64 near the middle part of the connecting seat 61, and the outer surface of the pressure rod 63 is sleeved with a second spring 65, and the second spring 65 is located between the limiting block 64 and the inner wall of the connecting seat 61, and the middle inner cavity of the connecting seat 61 is provided with a self-locking mechanism 66, and the self-locking mechanism 66 is fixedly connected to the battery shell 1. When the top cover 2 covers the battery shell 1, the self-locking mechanism 66 is inserted into the inner cavity of the connecting seat 61, and at this time, the limiting block 64 compresses the second spring 65 under the extrusion of the limiting block 64, and at this time, the limiting block 64 and the self-locking mechanism 66 are engaged to achieve a self-locking effect, thereby preventing the top cover 2 from falling off the battery shell 1.

[0044] See also Figure 6 and Figure 7 As shown, the self-locking mechanism 66 includes a fixed rod 661, a limit plate 662 is fixedly installed on the upper end of the fixed rod 661, a moving groove 663 is opened in the middle part of the fixed rod 661, a moving plate 664 is slidably connected to the outer surface of the fixed rod 661, a pull rod 665 is fixedly installed on the upper surface of the moving plate 664, a pull ring 666 is fixedly installed on the upper surface of the pull rod 665, a third spring 667 is sleeved on the outer surface of the pull rod 665, and the moving plate 664 and the pull rod 665 are both slidably connected to the moving groove 663. The three springs 667 are located between the moving disk 664 and the inner wall of the fixed rod 661. The bottom end of the third spring 667 is fixedly connected to the moving disk 664. The bottom end of the fixed rod 661 is fixedly connected to the battery housing 1. The limit block 64 is engaged with the limit disk 662. The lower surface of the limit block 64 is an inclined surface. The upper surface of the limit disk 662 is an inclined surface. The lower surface of the moving disk 664 is an inclined surface. In the process of the self-locking mechanism 66 and the limit block 64 being engaged, the inclined surface of the limit block 64 first aligns with the inclined surface of the limit disk 662. The limiting plate 662 exerts pressure on the limiting block 64, causing the limiting block 64 to squeeze the second spring 65, that is, the pressure rod 63 moves to both sides in the inner cavity of the limiting groove 62 until the battery housing 1 and the top cover 2 are tightly connected, and the lower surface of the limiting block 64 and the lower surface of the limiting plate 662 are engaged. At this time, the battery housing 1 and the top cover 2 are fixed to achieve a self-locking effect. When the battery housing 1 and the top cover 2 need to be separated, the movable plate 664 is squeezed by pulling the pull ring 666. At this time, the pull rod 6 65 moves upward, driving the movable plate 664 to move upward. When the movable plate 664 moves upward, the movable plate 664 gradually contacts the inclined surface of the limit block 64 until the movable plate 664 and the limit plate 662 are tightly fitted. At this time, the limit block 64 shrinks again under the squeezing of the movable plate 664, and the limit block 64 and the limit plate 662 are disengaged, making it easy to disassemble the top cover 2 from the battery housing 1. In this way, the battery housing 1 and the top cover 2 can be quickly installed and disassembled during later maintenance, thereby improving maintenance efficiency.

[0045] Embodiment 2

[0046] See also Figure 8 , Fig. 9 , Fig.10 and Fig.12 As shown, the protection assembly 8 includes a bottom plate 81, side plates 82 are fixedly installed on both sides of the bottom plate 81, a first protection mechanism 83 is fixedly installed on the outer surface of the side plate 82, and two first protection mechanisms 83 are installed on one side plate 82, a clamping mechanism 84 is arranged at the bottom end of the side plate 82, a first slide groove 85 is opened on the outer surface of the bottom plate 81, a second slide groove 86 is opened on the outer surface of the bottom plate 81, a second protection mechanism 87 is arranged at the bottom end of the bottom plate 81, the side plate 82 is slidably connected to the battery housing 1, the battery partition assembly 9 is placed on the bottom plate 81, the side plate 82 is fixed on the bottom plate 81, the first protection mechanism 83 is fixedly installed on the outer surface of the side plate 82, and the first protection mechanism 83 is fixedly installed on the outer surface of the side plate 82. The mechanism 83 is used to buffer the side plate 82 to prevent the battery separator assembly 9 from being damaged when the electric bicycle is bumped or collided. The clamping mechanism 84 clamps and fixes the battery separator assembly 9. The clamping mechanism 84 slides in the first slide groove 85 and can clamp different types of battery separator assemblies 9. The second protection mechanism 87 can buffer the bottom plate 81 while sliding in the second slide groove 86 to clamp the battery separator assembly 9. The clamping mechanism 84 can fix the four sides of the battery separator assembly 9 to maintain the stability of the battery separator assembly 9 in the bottom plate 81.

[0047] See also Fig. 9 , Fig.10 and Fig.11As shown, the first protection mechanism 83 includes a connecting rod 831, the outer surface of the connecting rod 831 is sleeved with a moving seat 832, the outer surface of the connecting rod 831 is fixedly installed with a first fixed block 833, the outer surface of the moving seat 832 is movably connected with a connecting strip 834, the outer surface of the side plate 82 is fixedly installed with a connecting plate 835, and a movable seat 836 is fixedly installed on the side of the connecting plate 835 away from the side plate 82, a fourth spring 837 is sleeved on the middle part of the connecting rod 831, and a fifth spring 838 is fixedly connected to the side of the connecting plate 835 away from the side plate 82, the moving seat 832 and the connecting rod 831 are slidably connected, and two moving seats 832 are arranged on one connecting rod 831, the fourth spring 837 is located between the two moving seats 832, one end of the connecting strip 834 away from the moving seat 832 is movably connected to the movable seat 836, the two ends of the connecting rod 831 are fixedly connected to the upper and lower inner walls of the battery housing 1, and one end of the fifth spring 838 away from the connecting plate 835 is connected to the first fixed The block 833 is fixedly connected. When the electric bicycle shakes, it causes the battery to shake. At this time, the battery separator assembly 9 is fixed in the bottom plate 81, and the side plate 82 is fixed to the bottom plate 81. The first protective mechanisms 83 on both sides of the side plates 82 have a certain buffering effect on the bottom plate 81. When the bottom plate 81 shakes toward the side of the first protective mechanism 83, the side plate 82 drives the connecting plate 835 to move toward the connecting rod 831. At this time, the fifth spring 838 squeezes the first fixed block 833 to generate a certain pressure. At the same time, as the connecting plate 835 approaches the connecting rod 831, the angle of the connecting strip 834 changes, causing the movable seat 832 to slide toward the fourth spring 837, compressing the fourth spring 837. At this time, the elastic forces of the fourth spring 837 and the fifth spring 838 both restore the side plate 82 to its original position, which has a buffering effect. At the same time, the pulling force of the first protective mechanism 83 on the other side also restores the side plate 82 to its original position, ensuring that the shaking of the battery separator assembly 9 is reduced when it is bumped or hit.

[0048] See also Fig.12 and Fig.13As shown, the clamping mechanism 84 includes a first threaded rod 841, the outer surface of the first threaded rod 841 is sleeved with a conveyor belt 842, and each base plate 81 has two first threaded rods 841, and the first threaded rods 841 are linked by the conveyor belt 842, and the two ends of the first threaded rod 841 are sleeved with a first ring 843, and the first ring 843 and the first threaded rod 841 are connected by threads, and the threads of the two first rings 843 on the same first threaded rod 841 are opposite, and the outer surface of the first ring 843 is fixedly installed with a first clamping block 844, and the first clamping block 844 is slidably connected to the first slide groove 85, and the side of the first threaded rod 841 close to the conveyor belt 842 is located On one side of the valve block 7, one of the first threaded rods 841 is located at the valve block 7, the first threaded rod 841 and the side plate 82 are rotatably connected, and the valve block 7 is opened when the first clamping block 844 needs to be adjusted, and the conveyor belt 842 is driven to rotate by rotating the first threaded rod 841, and the rotation of the conveyor belt 842 drives both the two first threaded rods 841 to rotate, and the rotation of the first threaded rod 841 drives the first ring 843 to move toward or away from each other, so that the first ring 843 drives the first clamping block 844 to move in the first slide groove 85, so that the first clamping block 844 can be adjusted according to the width of the battery partition assembly 9, so that the first clamping block 844 fixes the battery partition assembly 9.

[0049] See also Fig.12 , Fig.14 and Fig.15As shown, the second protection mechanism 87 includes a buffer frame 871, a second fixed block 872 is fixedly installed in the middle part of the buffer frame 871, the inner cavity of the second fixed block 872 is rotatably connected with a second threaded rod 873, an outer surface of the buffer frame 871 is provided with an adjusting groove 874, two ends of the second threaded rod 873 are provided with second rings 875, the upper surface of the second ring 875 is fixedly installed with a second clamping block 876, buffer rods 877 are fixedly installed on both sides of the buffer frame 871, and the outer surface of the buffer rod 877 is sleeved with a sixth spring 878, the second threaded rod 873 and the second ring 875 are threadedly connected, and the two second rings 875 on the same second threaded rod 873 have opposite threads, the second clamping block 876 is slidably connected to the adjusting groove 874, the second clamping block 876 is slidably connected to the second slide groove 86, the buffer rod 877 and the two ends of the bottom plate 81 are slidably connected, the head of the second threaded rod 873 is located at the valve block 7, and the second threaded rod 873 is rotated by opening the valve block 7. The rotation of the second threaded rod 873 drives the second ring 875 to move in the inner cavity of the adjustment groove 874. The movement of the adjustment groove 874 drives the second clamping block 876 to move, so that the second clamping block 876 slides in the second slide groove 86. In this way, the second clamping block 876 can be adjusted according to the length of the battery separator assembly 9, and the battery separator assembly 9 can be clamped in cooperation with the first clamping block 844 to ensure the stability of the battery separator assembly 9 on the bottom plate 81. When the battery separator assembly 9 shakes in a direction perpendicular to the side plate 82, the battery separator assembly 9 can be easily moved. When the battery is moved, the second clamping block 876 drives the buffer frame 871 to shake on the bottom plate 81, that is, the buffer rod 877 slides on the bottom plate 81. At this time, the elastic force of the sixth spring 878 restores the buffer frame 871 to its original position. At the same time, the sixth springs 878 at both ends of the buffer frame 871 reduce the amplitude of the battery when shaking, thereby reducing the impact of bumps or collisions. Cooperating with the buffering of the first protective mechanism 83, the battery partition assembly 9 is protected in four directions on the bottom plate 81, thereby increasing the service life of the battery.

[0050] In summary, when the battery housing 1 and the top cover 2 are connected, the sealing rings 54 on the first sealing sleeve 51 and the second sealing sleeve 52 are close to each other until they are squeezed together. At this time, the sealing rings 54 are in close contact with each other, and the gap between the battery housing 1 and the top cover 2 is blocked to prevent dust from entering the interior of the battery housing 1 and polluting the battery partition assembly 9. When the top cover 2 covers the battery housing 1, during the engagement process of the self-locking mechanism 66 and the limit block 64, the inclined surface of the limit block 64 first contacts the inclined surface of the limit plate 662. At this time, the limit plate 662 generates pressure on the limit block 64, so that the limit block 64 squeezes the second spring 65, that is, the pressure rod 63 moves to both sides in the inner cavity of the limit groove 62 until the battery housing 1 and the top cover 2 are connected. After the cover 2 is tightly connected, the lower surface of the limit block 64 and the lower surface of the limit plate 662 are engaged. At this time, the battery shell 1 and the top cover 2 are fixed to achieve a self-locking effect. When the battery shell 1 and the top cover 2 need to be separated, the pull ring 666 is pulled until the movable plate 664 and the limit plate 662 are tightly fitted. At this time, the limit block 64 shrinks again under the squeezing of the movable plate 664, and the limit block 64 and the limit plate 662 are disengaged, which facilitates the disassembly of the top cover 2 from the battery shell 1. The battery separator assembly 9 is placed on the bottom plate 81, and the side plate 82 is fixed on the bottom plate 81. The first protective mechanism 83 is used to buffer the side plate 82 to prevent the electric bicycle from causing damage to the battery separator assembly 9 when bumps or collisions occur. The clamping mechanism 84 is used for the battery separator. The assembly 9 is clamped and fixed, and the clamping mechanism 84 slides in the first slide groove 85 to clamp different types of battery separator assemblies 9. The second protective mechanism 87 can buffer the bottom plate 81 while sliding in the second slide groove 86 to clamp the battery separator assembly 9. The clamping mechanism 84 can fix the four sides of the battery separator assembly 9 to maintain the stability of the battery separator assembly 9 in the bottom plate 81. When the electric bicycle shakes, it causes the battery to shake. The first protective mechanisms 83 on both sides of the side plate 82 have a certain buffering effect on the bottom plate 81. When the bottom plate 81 shakes toward the first protective mechanism 83, the side plate 82 drives the connecting plate 835 to move toward the connecting rod 831. At this time, the fifth spring 838 squeezes the first The fixing block 833 generates a certain pressure. At the same time, as the connecting plate 835 approaches the connecting rod 831, the angle of the connecting strip 834 changes, causing the movable seat 832 to slide toward the fourth spring 837, compressing the fourth spring 837. At this time, the elastic forces of the fourth spring 837 and the fifth spring 838 restore the side plate 82 to its original position, thereby achieving a buffering effect. When the first clamping block 844 needs to be adjusted, the valve block 7 is opened, and the first sleeve 843 is driven to move toward or away from each other by rotating the first threaded rod 841. In this way, the first sleeve 843 drives the first clamping block 844 to move in the first slide groove 85. In this way, the first clamping block 844 can be adjusted according to the width of the battery separator assembly 9, so that the first clamping block 844 can fix the battery separator assembly 9.By opening the valve block 7 to rotate the second threaded rod 873, the rotation of the second threaded rod 873 drives the second clamping block 876 to move, so that the second clamping block 876 slides in the second slide groove 86, so that the second clamping block 876 can be adjusted according to the length of the battery separator assembly 9, and the battery separator assembly 9 is clamped in cooperation with the first clamping block 844 to ensure the stability of the battery separator assembly 9 on the bottom plate 81. When the battery separator assembly 9 shakes in a direction perpendicular to the side plate 82, the second clamping block 876 drives the buffer frame 871 to shake on the bottom plate 81, that is, the buffer rod 877 slides on the bottom plate 81. At this time, the elastic force of the sixth spring 878 restores the buffer frame 871 to its original position. At the same time, the sixth springs 878 at both ends of the buffer frame 871 reduce the amplitude of the battery when shaking, thereby reducing the impact of bumps or collisions.

[0051] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0052] What has been described above is only a preferred specific implementation manner of the embodiments of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical scheme and concept of the present application within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. An electric bicycle battery protection device, comprising a battery housing (1), characterized in that: The top of the battery housing (1) is provided with a top cover (2), the middle portion of the top cover (2) is movably connected with a handle (3), the upper surface of the top cover (2) is provided with a pole (4), a sealing component (5) is provided at the junction of the battery housing (1) and the top cover (2), both sides of the top cover (2) are provided with self-locking components (6), a valve block (7) is slidably mounted on the outer surface of the battery housing (1), and there are two valve blocks (7), the inner cavity of the battery housing (1) is provided with a protection component (8), and the middle portion of the protection component (8) is provided with a battery separator assembly (9); The protection assembly (8) comprises a bottom plate (81), side plates (82) are fixedly mounted on both sides of the bottom plate (81), a first protection mechanism (83) is fixedly mounted on the outer surface of the side plate (82), and two first protection mechanisms (83) are provided on one side plate (82), a clamping mechanism (84) is provided at the bottom end of the side plate (82), a first sliding groove (85) is provided on the outer surface of the bottom plate (81), a second sliding groove (86) is provided on the outer surface of the bottom plate (81), a second protection mechanism (87) is provided at the bottom end of the bottom plate (81), and the side plate (82) is slidably connected to the battery housing (1); The self-locking component (6) comprises a connecting seat (61), a limiting groove (62) is provided on the bottom side of the connecting seat (61), a pressure rod (63) is slidably connected to the inner cavity of the limiting groove (62), the pressure rod (63) is fixedly connected to the limiting block (64) near the middle part of the connecting seat (61), a second spring (65) is sleeved on the outer surface of the pressure rod (63), the second spring (65) is located between the limiting block (64) and the inner wall of the connecting seat (61), and a self-locking mechanism (66) is provided in the middle inner cavity of the connecting seat (61), and the self-locking mechanism (66) is fixedly connected to the battery housing (1); The self-locking mechanism (66) comprises a fixed rod (661), a limit plate (662) is fixedly mounted on the upper end of the fixed rod (661), a moving groove (663) is provided in the middle of the fixed rod (661), a moving plate (664) is slidably connected to the outer surface of the fixed rod (661), a pull rod (665) is fixedly mounted on the upper surface of the moving plate (664), a pull ring (666) is fixedly mounted on the upper surface of the pull rod (665), and a third spring (667) is sleeved on the outer surface of the pull rod (665); The movable plate (664) and the pull rod (665) are both slidably connected to the movable groove (663); the third spring (667) is located between the movable plate (664) and the inner wall of the fixed rod (661); the bottom end of the third spring (667) is fixedly connected to the movable plate (664); the bottom end of the fixed rod (661) is fixedly connected to the battery housing (1); the limit block (64) and the limit plate (662) are engaged; the lower surface of the limit block (64) is an inclined surface; the upper surface of the limit plate (662) is an inclined surface; and the lower surface of the movable plate (664) is an inclined surface.

2. An electric bicycle battery protection device as claimed in claim 1, characterized in that: The sealing assembly (5) comprises a first sealing sleeve (51), the first sealing sleeve (51) is fixedly connected to the top end of the battery housing (1), the second sealing sleeve (52) is fixedly mounted on the bottom end of the top cover (2), the upper surface of the first sealing sleeve (51) and the lower surface of the second sealing sleeve (52) are both provided with a receiving groove, the inner wall of the receiving groove is fixedly connected to a first spring (53), one end of the first spring (53) is fixedly connected to a sealing ring (54), and the sealing ring (54) and the receiving groove are slidably connected, and when the battery housing (1) and the top cover (2) are engaged, the sealing ring (54) on the first sealing sleeve (51) and the sealing ring (54) on the second sealing sleeve (52) are in close contact.

3. An electric bicycle battery protection device as claimed in claim 1, characterized in that: The first protection mechanism (83) comprises a connecting rod (831), the outer surface of the connecting rod (831) is sleeved with a movable seat (832), the outer surface of the connecting rod (831) is fixedly mounted with a first fixed block (833), the outer surface of the movable seat (832) is movably connected with a connecting strip (834), the outer surface of the side plate (82) is fixedly mounted with a connecting plate (835), a side of the connecting plate (835) away from the side plate (82) is fixedly mounted with a movable seat (836), a middle portion of the connecting rod (831) is sleeved with a fourth spring (837), and a side of the connecting plate (835) away from the side plate (82) is fixedly connected with a fifth spring (838).

4. An electric bicycle battery protection device as claimed in claim 3, characterized in that: The movable seat (832) and the connecting rod (831) are slidably connected, and two movable seats (832) are arranged on one connecting rod (831), the fourth spring (837) is located between the two movable seats (832), one end of the connecting strip (834) away from the movable seat (832) is movably connected to the movable seat (836), the two ends of the connecting rod (831) are fixedly connected to the upper and lower inner walls of the battery housing (1), and one end of the fifth spring (838) away from the connecting plate (835) is fixedly connected to the first fixed block (833).

5. The electric bicycle battery protection device according to claim 1, characterized in that: The clamping mechanism (84) comprises a first threaded rod (841), the outer surface of which is sleeved with a conveyor belt (842), and two first threaded rods (841) are provided on each bottom plate (81), the first threaded rods (841) are linked to each other via the conveyor belt (842), first sleeve rings (843) are sleeved at both ends of the first threaded rod (841), the first sleeve ring (843) and the first threaded rod (841) are connected by threads, and the threads of the two first sleeve rings (843) on the same first threaded rod (841) are opposite, a first clamping block (844) is fixedly mounted on the outer surface of the first sleeve ring (843), the first clamping block (844) and the first sliding groove (85) are slidably connected, a side of the first threaded rod (841) close to the conveyor belt (842) is located on one side of the valve block (7), and one of the first threaded rods (841) is located at the valve block (7), and the first threaded rod (841) and the side plate (82) are rotatably connected.

6. An electric bicycle battery protection device as claimed in claim 1, characterized in that: The second protection mechanism (87) comprises a buffer frame (871), a second fixing block (872) is fixedly installed in the middle part of the buffer frame (871), a second threaded rod (873) is rotatably connected to the inner cavity of the second fixing block (872), an adjustment groove (874) is provided on the outer surface of the buffer frame (871), second rings (875) are provided at both ends of the second threaded rod (873), a second clamping block (876) is fixedly installed on the upper surface of the second ring (875), buffer rods (877) are fixedly installed on both sides of the buffer frame (871), and a sixth spring (878) is sleeved on the outer surface of the buffer rod (877).

7. An electric bicycle battery protection device as claimed in claim 6, characterized in that: The second threaded rod (873) and the second sleeve ring (875) are connected by threads, and the threads of the two second sleeve rings (875) on the same second threaded rod (873) are opposite to each other. The second clamping block (876) and the adjustment groove (874) are slidably connected. The second clamping block (876) and the second slide groove (86) are slidably connected. The buffer rod (877) and the two ends of the bottom plate (81) are slidably connected. The head of the second threaded rod (873) is located at the valve block (7).

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