An easily replaceable multi-component lithium battery for electric bicycles

Abstract

The present invention relates to a multi-component composite lithium battery for electric bicycles that is easy to replace, belonging to the technical field of electric bicycles, and comprising a mounting shell, wherein the mounting shell is provided with rectangularly distributed batteries, wherein the bottom shell and the mounting cover are both squeezed and matched with the mounting shell, wherein two groups of first isolation plates distributed in a cross shape are placed inside the mounting shell, wherein the mounting shell is slidably connected with a second isolation plate distributed in a cross shape inside the mounting shell, wherein the first isolation plate and the second isolation plate are both sealed and slidably connected with a first sliding plate, wherein the first sliding plate is fixed with a rubber pad, and the rubber pad is squeezed and matched with the adjacent batteries. The present invention releases the battery by bringing the adjacent second isolation plates and the first isolation plates close to each other, thereby preventing the battery from being difficult to remove due to deformation, and wherein the battery can be removed more smoothly and quickly by sliding the first sliding plate, thereby increasing the speed of replacing the battery.

Description

Technical Field

[0001] The invention relates to the technical field of electric bicycles, and in particular to a multi-component composite lithium battery for electric bicycles which is easy to replace. Background Art

[0002] As a means of transportation, electric bicycles are widely used in daily life. The quality of electric bicycle batteries is an important factor that determines the performance of electric bicycles. Multi-component composite lithium batteries, as high-performance lithium-ion batteries, are widely used in electric bicycles. However, during the long-term use of electric bicycles, battery performance degradation, battery damage, and slight bulging and deformation of the battery usually occur. In order to ensure the battery life and normal use of the electric bicycle, the battery needs to be replaced. Existing electric bicycle batteries are generally installed at the pedals of the electric bicycle, and multiple square batteries are placed in the battery box. When installing the battery, in order to ensure electric stability, the sides of the batteries and the edges of the batteries and the battery box need to be fitted together. If the battery bulges and deforms, the squeezing force between the battery and the battery box will increase, making the battery difficult to remove, affecting the normal replacement of the battery. Summary of the invention

[0003] In order to overcome the disadvantage that when replacing a battery, if the battery is deformed, it will be difficult to remove the battery. The present invention provides a multi-component composite lithium battery for an electric bicycle that is easy to replace.

[0004] The technical solution is: a multi-component composite lithium battery that is easy to replace for an electric bicycle, comprising a mounting shell, the mounting shell is slidably connected to a bottom shell, the bottom shell is bolted to a mounting cover, the mounting shell is provided with rectangularly distributed batteries, the bottom shell and the mounting cover are both squeezed and matched with the mounting shell, two groups of first isolation plates distributed in a cross shape are placed inside the mounting shell, a second isolation plate distributed in a cross shape is slidably connected inside the mounting shell, the first isolation plate and the second isolation plate are both sealed and slidably connected to a first sliding plate, the first sliding plate is fixed with a rubber pad, the rubber pad is squeezed and matched with adjacent batteries, an adjustment mechanism is provided between the second isolation plate and two adjacent first isolation plates, the adjustment mechanism is used to adjust the gap between the second isolation plate and two adjacent first isolation plates.

[0005] Furthermore, the side of the rubber pad close to the adjacent battery is wavy, and a plurality of groups of equally spaced partition blocks are arranged on the rubber pad.

[0006] Furthermore, the whole formed by the rubber pad and the adjacent first sliding plates is provided with evenly distributed through holes, and the through holes are located between the wave valley of the rubber pad and two adjacent separation blocks.

[0007] Furthermore, the adjustment mechanism includes two groups of equidistantly distributed connecting blocks, the two groups of equidistantly distributed connecting blocks are hinged to the adjacent second isolation plates, each group of equidistantly distributed connecting blocks on the second isolation plates is hinged to the adjacent first isolation plates, the first isolation plates are fixedly connected with symmetrically distributed fixed shells, and a transmission rod is threadedly connected between the two corresponding fixed shells on the two adjacent first isolation plates, the symmetrically distributed transmission rods are rotatably connected with brackets, and the brackets of the symmetrically distributed transmission rods are rotatably connected with the first rotating shaft together, the transmission rod and the adjacent first rotating shaft are driven by a worm gear, and the rotation directions of the threads at both ends of the transmission rod are opposite.

[0008] Furthermore, a sliding rod is slidably connected to the upper side of the first rotating shaft, and symmetrically distributed cylindrical protrusions are arranged on the upper side of the sliding rod. The sliding rod is slidably connected to a rotating handle, and symmetrically distributed grooves are provided on the rotating handle. The rotating handle is limitedly matched with the symmetrically distributed cylindrical protrusions on the sliding rod through the symmetrically distributed grooves.

[0009] Furthermore, a second sliding plate with a rectangular distribution is slidably connected to the inner side of the mounting shell, the second sliding plate is squeezed and matched with the adjacent battery, and the side of the second sliding plate that is not in contact with the mounting shell is made of soft material.

[0010] Furthermore, it also includes a second rotating shaft with a rectangular distribution, and the second rotating shaft with a rectangular distribution is slidably connected to the bottom of the mounting shell. The second rotating shaft is limited and slidably connected to a fixed seat, and the fixed seat is squeezed and matched with the adjacent battery. A first spring is fixed between the fixed seat and the mounting shell, and circumferentially distributed limit blocks are fixed to the second rotating shaft. The bottom of the mounting shell is provided with a hole that is limited and matched with the limit block.

[0011] Furthermore, the second rotating shaft is fixedly connected with a circumferentially distributed arc block, the arc block is located below the adjacent limit block, the arc block is slidably matched with the adjacent hole on the mounting shell, the mounting shell is slidably connected with a rectangularly distributed limit plate, the limit plate is extruded and matched with the adjacent arc block, the mounting shell is slidably connected with a third sliding plate near the edge of the limit plate, the limit plate is extruded and matched with the adjacent third sliding plate, the mounting shell is rotatably connected with a rectangularly distributed rotating plate, the rotating plate is extruded and matched with the adjacent second sliding plate, the rotating plate is located on the upper side of the adjacent third sliding plate, and is extruded and matched with the adjacent third sliding plate, and the rotating plate is limitedly matched with the adjacent battery.

[0012] Furthermore, the mounting shell is hinged with a cover plate, and a lock is provided on the cover plate away from the part hinged with the mounting shell, and a plurality of groups of symmetrically distributed terminals are provided on the lower side of the cover plate, and the terminals are threadedly connected to the positive or negative poles on the adjacent batteries, and each group of the terminals is connected by wires, and one group of the terminals is connected to the power system of the electric vehicle, and the terminal sleeve is provided with a fixing ring, and the fixing ring is slidably connected with a rubber suction cup, and a second spring and a third spring are fixedly connected between the fixing ring and the adjacent rubber suction cup, and the second spring is located at the outer edge of the fixing ring, and the third spring is located at the inner edge of the fixing ring.

[0013] Furthermore, the cross-section of the terminal is T-shaped, the lower side of the terminal is provided with a thread, the outer side of the middle part is fixed with a rubber ring, the rubber ring is squeezed and matched with the adjacent battery, the upper part of the terminal is made of insulating material, and the wire passes through the upper part of the terminal and is electrically connected to the middle part.

[0014] Compared with the prior art, the present invention has the following advantages: the present invention releases the battery by bringing the adjacent second isolation plate and the first isolation plate closer to each other, thereby preventing the battery from being difficult to remove due to deformation; the battery can be removed more smoothly and quickly by sliding the first sliding plate, thereby increasing the speed of battery replacement.

[0015] The present invention squeezes the battery through the rubber pad when fixing the battery, and the rubber pad gradually deforms during the squeezing process. The arc and the partition block on the rubber pad form a plurality of small suction cups, which not only squeeze and fix the battery but also adsorb the side wall of the battery, thereby further preventing the battery from sliding.

[0016] When taking out the battery, the first spring is released by rotating the second rotating shaft, and the corresponding battery is ejected through transmission, which is convenient for taking out. When in use, the first spring reduces the vibration of the battery and protects the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 It is a three-dimensional structure explosion diagram of the bottom shell and the mounting cover of the present invention;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure inside the installation shell of the present invention;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the first isolation plate and the rubber pad of the present invention;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the first rotating shaft, the transmission rod and the fixed shell of the present invention;

[0022] Figure 6 It is an exploded view of the three-dimensional structure of the first isolation plate, the first sliding plate and the rubber pad of the present invention;

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the first isolation plate and the second isolation plate of the present invention;

[0024] Figure 8 It is a three-dimensional structure explosion diagram of the adjustment mechanism of the present invention;

[0025] Fig. 9 It is a schematic diagram of the three-dimensional structure of the second rotating shaft, the fixing seat and the first spring of the present invention;

[0026] Fig.10 It is a three-dimensional structure explosion diagram of the mounting shell and the second rotating shaft of the present invention;

[0027] Fig.11 It is a three-dimensional structure explosion diagram of the cover plate and the terminal of the present invention;

[0028] Fig.12 It is a three-dimensional structural schematic diagram of the terminal and the fixing ring of the present invention;

[0029] Fig.13 It is a three-dimensional structural cross-sectional view of the terminal, the fixing ring and the rubber suction cup of the present invention.

[0030] The reference numbers in the figure are: 1-mounting shell, 11-bottom shell, 111-battery, 12-mounting cover, 13-first isolation plate, 14-second isolation plate, 15-first sliding plate, 16-rubber pad, 161-separator, 2-connecting block, 21-first rotating shaft, 22-transmission rod, 23-fixed shell, 3-sliding rod, 31-rotating handle, 4-second sliding plate, 41-second rotating shaft, 411-fixed seat, 42-first spring, 43-limiting block, 44-arc block, 45-limiting plate, 46-third sliding plate, 47-rotating plate, 5-cover plate, 51-terminal, 52-fixing ring, 53-rubber suction cup, 54-second spring, 55-third spring, 56-rubber ring. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0032] When replacing the battery on an electric bicycle, if the battery bulges and deforms, the squeezing force between the battery and the battery box will increase, making the battery difficult to remove and affecting the normal replacement of the battery.

[0033] Example 1: A multi-component lithium battery for an electric bicycle that is easy to replace, referring to Figure 1-Figure 6 As shown, it includes a mounting shell 1, the mounting shell 1 is slidably connected to a bottom shell 11, the bottom shell 11 is composed of four round rods and a square shell, the four round rods slide in the mounting shell 1, the bottom shell 11 is bolted to a mounting cover 12, four rectangularly distributed batteries 111 are placed in the mounting shell 1, the bottom shell 11 and the mounting cover 12 are both extruded and matched with the mounting shell 1, the bottom shell 11 and the mounting cover 12 are used to seal the mounting shell 1, two groups of first isolation plates 13 distributed in a cross shape are placed inside the mounting shell 1, the first isolation plates 13 are used to separate the batteries 111, the mounting shell 1 is slidably connected to a second isolation plate 14 distributed in a cross shape, the first isolation plate 13 and the second isolation plate 14 are both sealed and slidably connected to a first sliding plate 15, the first isolation plate 13 and the adjacent second isolation plate 15 are sealed and slidably connected to the first sliding plate 15, and the first isolation plate 13 and the adjacent second isolation plate 15 are sealed and slidably connected to the first sliding plate 15. The first sliding plate 15 on 14 faces in the opposite direction. The first sliding plate 15 is fixed with a rubber pad 16. The rubber pad 16 is squeezed and matched with the adjacent battery 111. The side of the rubber pad 16 close to the adjacent battery 111 is wavy. A plurality of groups of equidistantly distributed partition blocks 161 are arranged on the rubber pad 16. The whole formed by the rubber pad 16 and the adjacent first sliding plate 15 is provided with evenly distributed through holes. The through holes are located between the trough of the rubber pad 16 and the two adjacent partition blocks 161, so that a plurality of small suction cups are formed on the rubber pad 16 to improve the fixation of the battery 111. An adjustment mechanism is arranged between the second isolation plate 14 and the two adjacent first isolation plates 13. The adjustment mechanism is used to adjust the gap between the second isolation plate 14 and the two adjacent first isolation plates 13.

[0034] Reference Figure 5 , Figure 7 and Figure 8As shown, the adjustment mechanism includes two groups of equally spaced connection blocks 2, each group has three vertically distributed connection blocks 2, the two groups of equally spaced connection blocks 2 are hinged to the adjacent second isolation plates 14, each group of equally spaced connection blocks 2 on the second isolation plates 14 is hinged to the adjacent first isolation plates 13, the second isolation plates 14 and the two adjacent first isolation plates 13 are arranged in an isosceles triangle, the first isolation plates 13 are fixedly connected to two fixed shells 23 symmetrically distributed up and down, the corresponding two fixed shells 23 on the two adjacent first isolation plates 13 are threadedly connected with a transmission rod 22, and the two symmetrically distributed transmission rods 22 are connected to the adjacent first isolation plates 13. The movable rods 22 are all rotatably connected to the brackets, and the brackets of the two symmetrically distributed transmission rods 22 are rotatably connected to the first rotating shaft 21. The transmission rod 22 is used to control whether the two fixed shells 23 threadedly connected to it are close or far away. The transmission rod 22 and the adjacent first rotating shaft 21 are driven by a worm gear. Two worms are arranged on the first rotating shaft 21, and a worm wheel is arranged on the first rotating shaft 21. The rotation directions of the threads at both ends of the transmission rod 22 are opposite. When the first rotating shaft 21 rotates, the fixed shells 23 thereon move away from or approach at the same time, and drive the two first isolation plates 13 to move away from or approach through the fixed shells 23.

[0035] Reference Figure 5 , Figure 7 and Figure 8 As shown, the upper side of the first rotating shaft 21 is slidably connected to a sliding rod 3, and the upper side of the sliding rod 3 is provided with symmetrically distributed cylindrical protrusions. The outer side of the sliding rod 3 is slidably connected to a rotating handle 31, and the rotating handle 31 is provided with symmetrically distributed grooves. The rotating handle 31 is limited by the symmetrically distributed grooves and the symmetrically distributed cylindrical protrusions on the sliding rod 3. When in use, the rotating handle 31 slides on the sliding rod 3, and the cylindrical protrusions on the sliding rod 3 limit the movement of the rotating handle 31.

[0036] Reference Figure 4 As shown, four second sliding plates 4 with rectangular distribution are slidably connected to the inner side of the mounting shell 1. The four second sliding plates 4 with rectangular distribution are respectively located at the front and rear sides inside the mounting shell 1. The second sliding plates 4 are squeezed and fitted with adjacent batteries 111. The side of the second sliding plates 4 that is not in contact with the mounting shell 1 is made of soft material, which is used to reduce the vibration of the battery 111.

[0037] When replacing the battery of an electric bicycle, first use a tool to turn the four bolts on the edge of the mounting cover 12 to separate the mounting cover 12 from the bottom shell 11. After the mounting cover 12 is separated from the bottom shell 11, the bottom shell 11 slides downward, and the lower side of the bottom shell 11 is separated from the bottom side of the mounting shell 1. Then the mounting cover 12 is taken out, the mounting cover 12 is separated from the contact with the upper edge of the mounting shell 1, and then the battery 111 is taken out.

[0038] In the process of removing the battery 111, the wires connected to each other on the battery 111 are first removed, and then the status of the battery 111 is checked. If only one battery 111 needs to be removed, taking the removal of a battery 111 at the left rear as an example, first pull out the rotating handle 31 on the right side of the battery 111, and the rotating handle 31 slides outside the adjacent sliding rod 3, and the cylindrical protrusion on the sliding rod 3 slides in the groove of the adjacent rotating handle 31. When the bottom of the groove on the rotating handle 31 contacts the cylindrical protrusion on the sliding rod 3, the rotating handle 31 drives the adjacent sliding rod 3 to move upward. After the sliding rod 3 moves upward for a distance, the rotating handle 31 is twisted to rotate the rotating handle 31 forward. The rotating handle 31 and the adjacent sliding rod 3 form an L shape, and then the rotating handle 31 is twisted clockwise from top to bottom, and the rotating handle 31 drives the adjacent first rotating shaft 21 to rotate clockwise through the adjacent sliding rod 3.

[0039] During the clockwise rotation of the above-mentioned first rotating shaft 21, the first rotating shaft 21 drives the two adjacent transmission rods 22 to rotate through the worm gear, and the two ends of the transmission rod 22 rotate in the two adjacent fixed shells 23 respectively. Under the action of the thread of the transmission rod 22, the two fixed shells 23 are moved away from each other, and the fixed shell 23 drives the adjacent front and rear first isolation plates 13 to move. During the movement of the first isolation plates 13, the connecting block 2 is driven. Under the limitation of the connecting block 2, the vertical plane where the two first isolation plates 13 are located is close to the adjacent second isolation plate 14, and the right edge of the battery 111 is released. When the squeezing force of the first isolation plate 13 on the battery 111 is reduced, it stops, and then the above process is repeated for the rotating handle 31 on the front side of the battery 111 to release the battery 111, and then the battery 111 is pulled upward.

[0040] During the upward movement of the battery 111, the second sliding plate 4 on the left rear side and the adjacent rubber pad 16 move upward synchronously with the battery 111, and the rubber pad 16 drives the adjacent first sliding plate 15 to move upward, and the first sliding plate 15 slides upward on the adjacent first isolation plate 13. Initially, the rubber pad 16 adheres to the battery 111 and adsorbs the battery 111. During the upward movement of the rubber pad 16 and the adjacent first sliding plate 15, the through holes on the rubber pad 16 and the adjacent first sliding plate 15 gradually separate from the adjacent first isolation plate 13 and communicate with the outside world. The outside gas enters between the two partition blocks 161 on the rubber pad 16 through the through holes, so that the rubber pad 16 separates from the battery 111 and the battery 111 is taken out.

[0041] After the battery 111 is taken out, the remaining batteries 111 are still fixed under the squeezing of the adjacent first isolation plate 13 and the second isolation plate 14, which is convenient for replacement. This avoids the problem that when replacing a battery 111, after taking out a battery 111, the remaining batteries 111 become loose due to reduced support, and the remaining batteries 111 need to be rearranged when placed.

[0042] By bringing the adjacent second isolation plate 14 and the first isolation plate 13 closer together, the battery 111 is released, preventing the battery 111 from being difficult to remove due to deformation. The battery 111 can be removed more smoothly and quickly by sliding the first sliding plate 15, thereby increasing the speed of replacing the battery 111.

[0043] If all the batteries 111 need to be taken out, the above process is repeated to shrink all the adjacent first isolation plates 13 and second isolation plates 14 and then take out the batteries 111 .

[0044] During the installation of the battery 111, the four batteries 111 are first placed in the installation shell 1, and then the handle 31 is twisted counterclockwise. The handle 31 separates the adjacent first isolation plates 13 and second isolation plates 14 from each other through transmission, so that the first isolation plates 13 and second isolation plates 14 drive the rubber pad 16 to approach the adjacent battery 111 through the first sliding plate 15. The first sliding plate 15 and the rubber pad 16 squeeze the battery 111. During the squeezing process of the first sliding plate 15 and the rubber pad 16 squeezing the battery 111, the rubber pad 16 gradually deforms. The arc and the partition block 161 on the rubber pad 16 form a plurality of small suction cups, which not only squeeze and fix the battery 111, but also adsorb the side wall of the battery 111, thereby further preventing the battery 111 from sliding, so that the four batteries 111 form a whole. When vibration occurs, the rubber pad 16 can also reduce the vibration of the battery 111.

[0045] After all four batteries 111 are fixed, the staff stops twisting the rotating handle 31 and resets the rotating handle 31, and then installs the bottom shell 11 and the mounting cover 12 together by bolts. The bottom shell 11 and the mounting cover 12 seal the mounting shell 1 at the same time. Batteries 111 of different lengths and widths can also be installed through this device, which improves the applicability of the battery 111.

[0046] Example 2: Based on Example 1, refer to Figure 4 , Fig. 9 and Fig.10As shown, it also includes four second rotating shafts 41 distributed in a rectangle, and the four second rotating shafts 41 distributed in a rectangle are all slidably connected to the bottom of the mounting shell 1. The second rotating shaft 41 corresponds to the battery 111. The upper side of the second rotating shaft 41 is limited and slidably connected with a fixing seat 411, and the fixing seat 411 is squeezed and matched with the adjacent battery 111. When in use, the battery 111 is placed on the adjacent fixing seat 411, and the fixing seat 411 can slide up and down in a small range on the adjacent second rotating shaft 41. A first spring 42 is fixedly connected between the fixing seat 411 and the mounting shell 1. The first spring 42 is used to drive the fixing seat 411 upward when the battery 111 is removed, and the battery 111 is ejected. When in use, it is used to reduce the vibration of the battery 111, and four circumferentially distributed limit blocks 43 are fixedly connected to the second rotating shaft 41, and a hole that is limited and matched with the limit block 43 is opened at the bottom of the mounting shell 1.

[0047] Reference Fig. 9 and Fig.10 As shown, the second rotating shaft 41 is fixedly connected with four circumferentially distributed arc blocks 44, the arc blocks 44 are located below the adjacent limiting blocks 43, the arc blocks 44 are slidably matched with the adjacent holes on the mounting shell 1, the mounting shell 1 is slidably connected with four rectangularly distributed limiting plates 45, the limiting plates 45 are squeezed and matched with the adjacent arc blocks 44, initially, the limiting plates 45 are squeezed by the adjacent arc blocks 44, the edge of the mounting shell 1 close to the limiting plates 45 is slidably connected with a third sliding plate 46, the third sliding plate 46 slides in the front and rear side surfaces of the mounting shell 1, the limiting plates 45 are squeezed and matched with the adjacent third sliding plates 46, the limiting plates 45 are close to the adjacent third A slope is provided on one side of the sliding plate 46, and a slope is provided on the lower side of the third sliding plate 46. The limiting plate 45 squeezes the slope on the adjacent third sliding plate 46 through the slope thereon to control the up and down movement of the third sliding plate 46. The mounting shell 1 is rotatably connected to a rotating plate 47 with a rectangular distribution, and the rotating plate 47 is squeezed and matched with the adjacent second sliding plate 4. Initially, the rotating plate 47 is placed horizontally to block the sliding of the second sliding plate 4. The rotating plate 47 is located on the upper side of the adjacent third sliding plate 46 and is squeezed and matched with the adjacent third sliding plate 46. The third sliding plate 46 limits the rotation of the adjacent rotating plate 47, and the rotating plate 47 is limited and matched with the adjacent battery 111.

[0048] Reference Figure 1 and Figure 11-13As shown, a cover plate 5 is hingedly connected to the rear side of the mounting shell 1, the cross section of the terminal 51 is T-shaped, a thread is arranged on the lower side of the terminal 51, a rubber ring 56 is fixedly connected to the outer side of the middle part, and the rubber ring 56 is squeezed and matched with the adjacent battery 111. When in use, the rubber ring 56 squeezes the positive or negative electrode of the adjacent battery 111 to seal the positive or negative electrode of the battery 111. The upper part of the terminal 51 is made of insulating material, and the wire passes through the upper part of the terminal 51 and is electrically connected to the middle part thereof. A lock is arranged on the front side of the cover plate 5, and a plurality of groups of symmetrically distributed terminals 51 are arranged on the lower side of the cover plate 5. The terminals 51 are screwed with the positive or negative electrodes on the adjacent batteries 111. The terminals 51 are connected by wires, wherein one set of terminals 51 is connected to the power system of the electric vehicle. The outer ring of the terminal 51 is provided with a fixing ring 52, which is formed by two annular blocks and a connecting rod. The fixing ring 52 is slidably connected to a rubber suction cup 53. A second spring 54 and a third spring 55 are fixedly connected between the fixing ring 52 and the adjacent rubber suction cup 53. The second spring 54 and the third spring 55 are used to squeeze the lower edge of the rubber suction cup 53 so that the rubber suction cup 53 fits the battery 111. The second spring 54 is located at the outer edge of the fixing ring 52, and the third spring 55 is located at the inner edge of the fixing ring 52.

[0049] During the process of disassembling the battery 111, after disassembling the bottom shell 11 and the installation cover 12, the staff opens the cover plate 5 with a key, then flips the cover plate 5 open, and secures it again with the lock on the cover plate 5 to prevent the battery 111 from being lost.

[0050] In the process of taking out the battery 111, taking a battery 111 at the left rear as an example, after the first isolation plate 13 and the second isolation plate 14 no longer squeeze the side wall of the battery 111 through the first sliding plate 15 and the rubber pad 16, the staff rotates the second rotation shaft 41 (initially, as Figure 8 As shown, the limit block 43 is fixed in the mounting shell 1, the first spring 42 stores force), the second rotating shaft 41 drives the limit block 43 thereon to rotate, and when the limit block 43 rotates to correspond to the hole at the bottom of the mounting shell 1, it stops. At this time, the mounting shell 1 no longer restricts the limit block 43, and the first spring 42 is released. The first spring 42 drives the fixing seat 411 to move upward, and the fixing seat 411 drives the limit block 43 and the arc block 44 thereon to move upward through the second rotating shaft 41. The limit block 43 and the arc block 44 pass through the hole on the mounting shell 1, and drive the battery 111 to move upward while the fixing seat 411 moves upward, so that the battery 111 pops out, making it easy to take out the battery 111.

[0051] During the rotation of the limit block 43, the arc block 44 rotates synchronously. Fig. 9As shown (initially, the arc block 44 on the right side of the second rotating shaft 41 squeezes the limit plate 45, and the rotating plate 47 limits the battery 111 from moving upward), during the rotation of the arc block 44, the arc block 44 gradually disengages from the limit plate 45, and the limit plate 45 moves to the left under the squeezing of the adjacent third sliding plate 46, and the third sliding plate 46 gradually disengages from the rotating plate 47, allowing the rotating plate 47 to rotate, and after the arc block 44 stops rotating, the rotating plate 47 no longer squeezes the adjacent second sliding plate 4 and the battery 111, allowing the second sliding plate 4 to slide.

[0052] When installing the battery 111, the battery 111 is placed on the fixing seat 411 and the fixing seat 411 is pressed downward, the first spring 42 is compressed, the fixing seat 411 squeezes the second rotating shaft 41 to move downward, and the second rotating shaft 41 is rotated after the second rotating shaft 41 moves to the initial position, and the second rotating shaft 41 is fixed by the limit block 43 on the second rotating shaft 41, and the rotating plate 47 is placed in a horizontal state by the arc block 44 to limit the upward movement of the battery 111, and then the cover 5 is closed, and the cover 5 squeezes the battery 111. Since the fixing seat 411 can move in a small range on the second rotating shaft 41, if a vibration occurs, the battery 111 squeezes the fixing seat 411, and the fixing seat 411 slides downward to squeeze the first spring 42, and the first spring 42 is used to reduce the vibration of the battery 111, so that the battery 111 is protected.

[0053] After replacing battery 111, terminal 51 is connected to battery 111, and electricity is transmitted through terminal 51 and the wire. In the process of connecting terminal 51 to battery 111, the staff rotates terminal 51, and terminal 51 moves downward through the thread at its lower end and is connected to battery 111 until rubber ring 56 contacts battery 111, sealing the interface on battery 111 to prevent dust from entering the interface of battery 111.

[0054] During the process of the terminal 51 descending, the rubber suction cup 53 and the fixing ring 52 descend synchronously, the rubber suction cup 53 contacts the battery 111, and then the terminal 51 continues to move to squeeze the fixing ring 52, the fixing ring 52 squeezes the second spring 54 and the third spring 55, the second spring 54 and the third spring 55 squeeze the rubber suction cup 53, and fix the rubber suction cup 53 near the positive and negative poles of the battery 111, and the rubber suction cup 53 prevents water from entering the vicinity of the terminal 51, causing a short circuit in the battery 111.

[0055] Although the 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 claims and their equivalents.

Claims

1. A multi-component composite lithium battery for an electric bicycle that is easy to replace, comprising a mounting shell (1), wherein the mounting shell (1) is slidably connected to a bottom shell (11), wherein the bottom shell (11) is bolted to a mounting cover (12), wherein rectangularly distributed batteries (111) are placed in the mounting shell (1), wherein the bottom shell (11) and the mounting cover (12) are both extrusion-fitted with the mounting shell (1), and wherein: The invention also comprises two groups of first isolation plates (13) distributed in a cross shape, the two groups of the first isolation plates (13) distributed in a cross shape are both placed inside the mounting shell (1), the mounting shell (1) is slidably connected with a second isolation plate (14) distributed in a cross shape inside, the first isolation plate (13) and the second isolation plate (14) are both sealed and slidably connected with a first sliding plate (15), the first sliding plate (15) is fixedly connected with a rubber pad (16), the rubber pad (16) is pressed and matched with adjacent batteries (111), and an adjustment mechanism is provided between the second isolation plate (14) and two adjacent first isolation plates (13), the adjustment mechanism is used to adjust the gap between the second isolation plate (14) and two adjacent first isolation plates (13).

2. The easily replaceable multi-component lithium battery for electric bicycles according to claim 1, characterized in that: The side of the rubber pad (16) close to the adjacent battery (111) is wavy, and a plurality of groups of equally spaced partition blocks (161) are provided on the rubber pad (16).

3. The easily replaceable multi-component lithium battery for electric bicycle according to claim 2, characterized in that: The whole formed by the rubber pad (16) and the adjacent first sliding plate (15) is provided with evenly distributed through holes, and the through holes are located between the wave valley of the rubber pad (16) and the two adjacent separation blocks (161).

4. The easily replaceable multi-component lithium battery for electric bicycle according to claim 1, characterized in that: The adjustment mechanism comprises two groups of equally spaced connection blocks (2), the two groups of equally spaced connection blocks (2) are both hinged to adjacent second isolation plates (14), each group of equally spaced connection blocks (2) on the second isolation plates (14) is hinged to the adjacent first isolation plates (13), the first isolation plates (13) are fixedly connected to symmetrically spaced fixed shells (23), a transmission rod (22) is threadedly connected between two corresponding fixed shells (23) on two adjacent first isolation plates (13), the symmetrically spaced transmission rods (22) are both rotatably connected to brackets, the brackets of the symmetrically spaced transmission rods (22) are jointly rotatably connected to a first rotating shaft (21), the transmission rod (22) and the adjacent first rotating shaft (21) are driven by a worm gear, and the rotation directions of the threads at both ends of the transmission rod (22) are opposite.

5. The easily replaceable multi-component lithium battery for electric bicycle according to claim 4, characterized in that: The upper side of the first rotating shaft (21) is slidably connected to a sliding rod (3), the upper side of the sliding rod (3) is provided with symmetrically distributed cylindrical protrusions, the sliding rod (3) is slidably connected to a rotating handle (31), the rotating handle (31) is provided with symmetrically distributed grooves, and the rotating handle (31) is limitedly matched with the symmetrically distributed cylindrical protrusions on the sliding rod (3) through the symmetrically distributed grooves.

6. The easily replaceable multi-component lithium battery for electric bicycle according to claim 1, characterized in that: A second sliding plate (4) having a rectangular distribution is slidably connected to the inner side of the mounting shell (1), the second sliding plate (4) is pressed and matched with the adjacent battery (111), and the side surface of the second sliding plate (4) not in contact with the mounting shell (1) is made of a soft material.

7. The easily replaceable multi-component lithium battery for electric bicycles according to claim 6, characterized in that: The invention also comprises second rotating shafts (41) distributed in a rectangular shape, wherein the second rotating shafts (41) distributed in a rectangular shape are all slidably connected to the bottom of the mounting shell (1), the second rotating shafts (41) are limitedly slidably connected to a fixing seat (411), the fixing seat (411) is pressed and matched with the adjacent battery (111), a first spring (42) is fixedly connected between the fixing seat (411) and the mounting shell (1), and circumferentially distributed limiting blocks (43) are fixedly connected to the second rotating shafts (41), and the bottom of the mounting shell (1) is provided with a hole that is limitedly matched with the limiting block (43).

8. The easily replaceable multi-component lithium battery for electric bicycle according to claim 7, characterized in that: The second rotating shaft (41) is fixedly connected with circumferentially distributed arc blocks (44), the arc blocks (44) are located below the adjacent limiting blocks (43), the arc blocks (44) are slidably matched with adjacent holes on the mounting shell (1), the mounting shell (1) is slidably connected with rectangularly distributed limiting plates (45), the limiting plates (45) are extruded and matched with the adjacent arc blocks (44), and the edge of the mounting shell (1) close to the limiting plates (45) is slidably connected with a third The sliding plate (46) is pressed and matched with the adjacent third sliding plate (46), the mounting shell (1) is rotatably connected to a rotating plate (47) with a rectangular distribution, the rotating plate (47) is pressed and matched with the adjacent second sliding plate (4), the rotating plate (47) is located on the upper side of the adjacent third sliding plate (46) and is pressed and matched with the adjacent third sliding plate (46), and the rotating plate (47) is limitedly matched with the adjacent battery (111).

9. The easily replaceable multi-component lithium battery for electric bicycle according to claim 1, characterized in that: The mounting shell (1) is hingedly connected to a cover plate (5), a portion of the cover plate (5) away from the hinged portion of the mounting shell (1) is provided with a lock, a lower side of the cover plate (5) is provided with a plurality of groups of symmetrically distributed terminals (51), the terminals (51) are threadedly connected to the positive pole or negative pole on the adjacent battery (111), each group of the terminals (51) is connected via a wire, one group of the terminals (51) is connected to the power system of the electric vehicle, the terminals (51) are sleeved with a fixing ring (52), the fixing ring (52) is slidably connected to a rubber suction cup (53), a second spring (54) and a third spring (55) are fixedly connected between the fixing ring (52) and the adjacent rubber suction cup (53), the second spring (54) is located at the outer edge of the fixing ring (52), and the third spring (55) is located at the inner edge of the fixing ring (52).

10. The easily replaceable multi-component lithium battery for electric bicycle according to claim 9, characterized in that: The cross section of the terminal (51) is T-shaped, a thread is provided on the lower side of the terminal (51), a rubber ring (56) is fixedly connected to the outer side surface of the middle part, the rubber ring (56) is squeezed and matched with the adjacent battery (111), the upper part of the terminal (51) is made of insulating material, and a wire passes through the upper part of the terminal (51) and is electrically connected to the middle part.

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