Convenient disassembly and assembly structure of battery and controller of electric vehicle

Abstract

The present invention relates to a convenient disassembly and assembly structure of a battery and a controller of an electric vehicle, comprising a frame tube, a battery assembly, a controller assembly, an end cover and an end cover lock. The battery assembly and the controller assembly are sequentially installed in the frame tube from top to bottom. The upper end of the frame tube is provided with a take-in and take-out port, and the end cover is sealed on the take-in and take-out port and locked by the end cover lock; the upper end of the battery assembly is fixedly connected to the end cover, the lower end of the battery assembly is provided with a first electrical connection terminal and a first connection hole, and the upper end of the controller assembly is provided with a second electrical connection terminal, a second connection hole, a secondary fixing hole and a main fixing hole; and further comprising a first fastener matched with the main fixing hole, and a second fastener selectively matched with the first connection hole and the second connection hole or matched with the secondary fixing hole. The present invention can realize the coordinated disassembly and assembly of the battery assembly and the controller assembly, and can also realize the separate disassembly and assembly of the battery assembly, and has the advantages of simple structure, easy disassembly and assembly, and convenient use.

Description

Technical Field

[0001] The invention relates to a convenient disassembly and assembly structure of a battery and a controller of an electric vehicle, belonging to the technical field of electric vehicles. Background Art

[0002] With the development of society and the improvement of living standards, people have more diverse requirements for transportation. As a pollution-free, low-noise green transportation tool, electric bicycles are popular among the working class because of their comfort, labor-saving, low cost, high efficiency and moderate price. However, the disassembly and assembly structure of the controller of the electric bicycles currently sold on the market is generally designed independently of the battery box. As a result, when the controller needs to be disassembled and maintained, the battery box on the outside of the frame tube must be disassembled first, and then the controller on the inside of the frame tube must be disassembled. Since the controller is usually installed in a deeper position inside the frame tube, this method of disassembling the controller is very troublesome, which not only brings great inconvenience to the disassembly and maintenance of the controller, but also is not conducive to the installation of the controller. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and to provide a convenient disassembly and assembly structure of the battery and controller of an electric vehicle that can realize the coordinated disassembly and assembly of the battery assembly and the controller assembly, as well as the disassembly and assembly of the battery assembly alone, thereby facilitating the disassembly and assembly of the controller assembly and the battery assembly itself.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] A convenient disassembly and assembly structure of a battery and a controller of an electric vehicle, comprising a frame tube, a battery assembly, a controller assembly, an end cover and an end cover lock, wherein the battery assembly and the controller assembly are sequentially installed in the frame tube from top to bottom, the upper end of the frame tube is provided with a take-in and put-out port, the end cover is sealed on the take-in and put-out port and is locked by the end cover lock; the upper end of the battery assembly is fixedly connected to the end cover, the lower end of the battery assembly is provided with a first electrical connection terminal and a first connection hole, the upper end of the controller assembly is provided with a second electrical connection terminal which is detachably pluggable with the first electrical connection terminal and a second connection hole corresponding to the position of the first connection hole, and the upper end of the controller assembly is provided with a second electrical connection terminal which is detachably pluggable with the first electrical connection terminal and a second connection hole corresponding to the position of the first connection hole. A secondary fixing hole and a main fixing hole are also provided, which are staggered from the position of the first connecting hole; a first fastener that is matched with the main fixing hole to fix the controller assembly on the frame tube, and a second fastener that can selectively match with the first connecting hole and the second connecting hole or with the secondary fixing hole; when the second fastener is selected to match with the first connecting hole and the second connecting hole, after opening the end cover lock and loosening the first fastener, the end cover can be pulled outward to drive the battery assembly and the controller assembly to take out the frame tube from the access port together, and when the second fastener is selected to match with the secondary fixing hole, after opening the end cover lock, the end cover can be pulled outward to drive the battery assembly to take out the frame tube from the access port alone.

[0006] Furthermore, a first through hole is provided at a position corresponding to the main fixing hole on the frame tube for allowing a fixed end of the first fastener to penetrate into the main fixing hole, a second through hole is provided at a position corresponding to the first connecting hole and the second connecting hole on the frame tube, and a third through hole is provided at a position corresponding to the secondary fixing hole on the frame tube; when the second fastener is selected to be matched with the first connecting hole and the second connecting hole, the second fastener is sequentially penetrated into the second connecting hole and the first connecting hole through the second through hole, and the second fastener completely penetrates the second through hole; when the second fastener is selected to be matched with the secondary fixing hole, only the fixed end of the second fastener is penetrated into the secondary fixing hole through the third through hole.

[0007] Furthermore, the second through hole and the third through hole are arranged at intervals in the vertical direction of the frame tube, and the second through hole and the third through hole and the first through hole are arranged on two opposite side walls in the length direction of the frame tube.

[0008] Furthermore, a mounting hole is provided on the side wall of the frame tube, the second connecting hole and the auxiliary fixing hole are arranged at intervals in the upper and lower directions and are both located within the front projection range of the mounting hole, a positioning plug adapted to the shape of the mounting hole is provided in the mounting hole, the second through-hole and the third through-hole are arranged at intervals in the upper and lower directions on the positioning plug, and a recessed groove for the inner part of the positioning plug to be embedded is provided at a position corresponding to the mounting hole on the controller component.

[0009] Furthermore, the battery assembly includes a battery box, a battery arranged in the battery box, and a battery box upper cover and a battery box lower cover respectively fixedly mounted on the upper and lower open ends of the battery box, the battery box upper cover is fixedly connected to the end cover, the first electrical connection terminal is arranged inside the battery box lower cover, a socket for inserting the second electrical connection terminal to connect with the first electrical connection terminal is provided on the lower surface of the battery box lower cover, a connecting plate is also protruding from the lower surface of the battery box lower cover, and the first connecting hole is provided on the connecting plate.

[0010] Furthermore, the controller assembly includes a controller body and a connecting seat fixedly connected to the upper end of the controller body, the second connecting hole and the auxiliary fixing hole are respectively arranged on two opposite side walls of the connecting seat along the length direction of the frame tube, and the second connecting hole and the auxiliary fixing hole are arranged at intervals up and down, the second electrical connection terminal is protruded from the upper surface of the connecting seat, and the upper surface of the connecting seat is in contact with the lower surface of the lower cover of the battery box.

[0011] Furthermore, the end cap includes an end cap body, the upper portion of the end cap body is provided with a C-shaped opening which opens to one side and has a roughly C-shaped longitudinal cross-section, the upper wall portion of the C-shaped opening forms a handle suitable for human hand holding, the inner surface of the lower wall of the C-shaped opening is provided with a power display interface, a circuit board electrically connected to the power display interface and the battery assembly is provided inside the end cap body, and a charging interface electrically connected to the circuit board is provided on one side of the lower portion of the end cap body which is perpendicular to the opening direction of the C-shaped opening.

[0012] Furthermore, the end cover lock is a mechanical lock used in conjunction with a key, the mechanical lock comprising a lock body fixedly installed inside the end cover body, a lock core rotor rotatably arranged in the lock body and opened by a key, and a lock column driven by the lock core rotor to extend outward to lock and retract inward to unlock the lock, a key socket for inserting a key into the lock core rotor is provided on the other side of the lower part of the end cover body that is perpendicular to the opening direction of the C-shaped opening, an extension hole for allowing the lock column to extend outward is provided on the side wall of the lower part of the end cover body that is the same as the opening end of the C-shaped opening, and a lock hole for allowing the lock column to extend into to lock is provided on the side wall of the upper end of the frame tube corresponding to the position of the lock column.

[0013] Furthermore, a first L-shaped notch portion opposite to the opening direction of the C-shaped opening is provided on the side of the end cover body facing away from the C-shaped opening, and a first screw hole is longitudinally opened on the bottom wall of the first L-shaped notch portion, and the first screw hole can be used for a first screw to longitudinally penetrate the bottom wall of the first L-shaped notch portion from top to bottom and be fixedly connected to the battery box cover, and the end cover also includes a first shielding portion covering the first L-shaped notch portion and shielding the first screw, and a second screw hole connected to the C-shaped opening is transversely opened on the side wall of the first L-shaped notch portion, and the second screw hole can be used for a second screw to transversely penetrate the side wall of the first L-shaped notch portion from the C-shaped opening and be fixedly connected to the inner part of the first shielding portion, and the end of the second screw hole facing the C-shaped opening is arranged as a countersunk groove structure in which the cap head of the second screw can be hidden.

[0014] Furthermore, a second L-shaped notch portion is provided on the side of the lower part of the end cover body facing away from the first L-shaped notch portion, which is in the same opening direction as the C-shaped opening; a third screw hole is longitudinally provided on the bottom wall of the second L-shaped notch portion, and the third screw hole can allow a third screw to longitudinally penetrate the bottom wall of the second L-shaped notch portion from top to bottom and be fixedly connected to the battery box cover; a fourth screw hole is transversely provided on the side wall of the second L-shaped notch portion, and the fourth screw hole can allow a fourth screw to transversely penetrate the side wall of the second L-shaped notch portion from outside to inside and be fixedly connected to the lock body; the end cover also includes a second shielding portion, one end of the second shielding portion is fixedly connected to the upper end of the side wall of the second L-shaped notch portion, and the other end extends outward to shield the third screw and the fourth screw.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention realizes the coordinated disassembly and assembly of the battery assembly and the controller assembly, as well as the independent disassembly and assembly of the battery assembly, by simply switching the fixed position of the second fastener. This greatly facilitates the installation, use, disassembly and maintenance of the controller assembly, and also meets the needs of mobile charging or independent disassembly and maintenance of the battery assembly. The invention has the advantages of simple structure, easy disassembly and assembly, and convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a left front view schematic diagram of the battery assembly and the controller assembly installed on the frame tube.

[0018] Figure 2 It is a left-side schematic diagram showing the battery assembly and the controller assembly being cooperatively taken out from the frame tube.

[0019] Figure 3 This is a schematic diagram of the separation state of the battery component and the controller component.

[0020] Figure 4 It is a top-down perspective schematic diagram of the controller assembly.

[0021] Figure 5 It is a right side view schematic diagram showing the battery assembly and the controller assembly being taken out of the frame tube in coordination.

[0022] Figure 6 It is an enlarged schematic diagram of the positioning plug.

[0023] Figure 7 It is a left side view schematic diagram of the battery assembly being removed from the frame tube alone.

[0024] Figure 8 It is a schematic diagram of the structural breakdown of the battery components.

[0025] Fig. 9 This is a schematic diagram of the structural breakdown of the end cap. Figure 1 .

[0026] Fig.10 This is a schematic diagram of the structural breakdown of the end cap. Figure 2 . DETAILED DESCRIPTION

[0027] The present invention is further described in detail below with reference to the embodiments given in the accompanying drawings.

[0028] like Figures 1 to 10As shown, the convenient disassembly and assembly structure of the battery and controller of an electric vehicle described in this embodiment includes a frame tube 1, a battery assembly 2, a controller assembly 3, an end cover 4 and an end cover lock 5. The battery assembly 2 and the controller assembly 3 are installed in the frame tube 1 from top to bottom. The upper end of the frame tube 1 is provided with a take-in and take-out port 101, and the end cover 4 is sealed on the take-in and take-out port 101 and is locked by the end cover lock 5.

[0029] The upper end of the battery assembly 2 is fixedly connected to the end cover 4, the lower end of the battery assembly 2 is provided with a first electrical connection terminal 201 and a first connecting hole 202, the upper end of the controller assembly 3 is provided with a second electrical connection terminal 301 detachably plugged and connected to the first electrical connection terminal 201 and a second connecting hole 302 corresponding to the position of the first connecting hole 202, and the controller assembly 3 is also provided with a secondary fixing hole 303 and a main fixing hole 304 which are staggered with the position of the first connecting hole 202.

[0030] The convenient disassembly and assembly structure also includes a first fastener 6 that is coupled with the main fixing hole 304 to fix the controller assembly 3 on the frame tube 1 , and a second fastener 7 that can be selectively coupled with the first connection hole 202 and the second connection hole 302 or with the auxiliary fixing hole 303 .

[0031] When the second fastener 7 is selected to be matched with the first connection hole 202 and the second connection hole 302, after the end cover lock 5 is opened and the first fastener 6 is loosened, the end cover 4 can be pulled outward to drive the battery assembly 2 and the controller assembly 3 to be taken out of the frame tube 1 from the access port 101, so as to realize the coordinated disassembly of the battery assembly 2 and the controller assembly 3. At this time, the second fastener 7 is taken out from the first connection hole 202 and the second connection hole 302 to realize the separation of the controller assembly 3 from the battery assembly 2, thereby greatly facilitating the disassembly and maintenance of the controller assembly. At the same time, the taken out second fastener 7 can be loaded into the auxiliary fixing hole 303 for storage to avoid loss. On the contrary, when the controller assembly 3 needs to be installed back into the frame tube 1, it is only necessary to re-install the second fastener 7 into the first connection hole 202 and the second connection hole 302, and then insert the connected battery assembly 2 and the controller assembly 3 from the access port 101 into the frame tube 1, and then lock the controller assembly 3 by the first fastener 6. Therefore, the installation of the controller assembly 3 is also very convenient.

[0032] When the second fastener 7 is selected to be matched with the secondary fixing hole 303, after opening the end cover lock 5, pulling the end cover 4 outward can drive the battery assembly 2 to be removed from the frame tube 1 from the access port 101 alone, thereby realizing the independent disassembly of the battery assembly 2, thereby meeting the needs of mobile charging or independent disassembly and maintenance of the battery assembly.

[0033] In this embodiment: the first fastener 6 is a screw, and the main fixing hole 304 is a threaded hole. In this way, when the first fastener 6 is screwed into the main fixing hole 304, the controller assembly 3 can be fixed on the frame tube 1 more firmly; the second fastener 7 is also a screw, and the auxiliary fixing hole 303 is also a threaded hole. Under normal circumstances, the second fastener 7 is screwed into the auxiliary fixing hole 303, which can, on the one hand, play an auxiliary fixing role for the controller assembly 3, and on the other hand, ensure that the second fastener 7 will not loosen and fall off during the use of the electric vehicle. When the controller assembly 3 needs to be disassembled, the second fastener 7 is screwed out of the auxiliary fixing hole 303 and installed in the first connection hole 202 and the second connection hole 302, and then the battery assembly 2 and the controller assembly 3 are taken out together through the external pulling action of the aforementioned end cover 4; the first connection hole 202 and the second connection hole 302 are preferably pin holes without threads, which can facilitate the second fastener 7 to be installed or removed from the first connection hole 202 and the second connection hole 302.

[0034] As described above, the first through hole 102 for the fixed end of the first fastener 6 to penetrate the main fixing hole 304 is provided at the position corresponding to the main fixing hole 304 on the frame tube 1, the second through hole 103 is provided at the position corresponding to the first connecting hole 202 and the second connecting hole 302 on the frame tube 1, and the third through hole 104 is provided at the position corresponding to the auxiliary fixing hole 303 on the frame tube 1. When the second fastener 7 is selected to be matched with the first connecting hole 202 and the second connecting hole 302, the second fastener 7 is sequentially penetrated into the second connecting hole 302 and the first connecting hole 202 through the second through hole 103, and the second fastener 7 completely passes through the second through hole 103, so as to avoid the second fastener 7 being blocked by the second through hole 103 when the end cover 4 is pulled out to remove the battery assembly 2 and the controller assembly 3 together. When the second fastener 7 is selected to be matched with the auxiliary fixing hole 303, only the fixed end of the second fastener 7 passes through the third through hole 104 into the auxiliary fixing hole 303, that is, the tail of the second fastener 7 still stays in the third through hole 104, thereby being able to play an auxiliary fixing role for the controller component 3.

[0035] As described above, the second through hole 103 and the third through hole 104 are arranged vertically and spaced apart along the length direction of the frame tube 1 , and the second through hole 103 and the third through hole 104 and the first through hole 102 are arranged on two opposite side walls of the frame tube 1 in the length direction.

[0036] As described above, a mounting hole 105 is provided on the side wall of the frame tube 1, the second connection hole 302 and the auxiliary fixing hole 303 are arranged at intervals in the upper and lower parts and are both located within the front projection range of the mounting hole 105, a positioning plug 106 matching the shape of the mounting hole is provided in the mounting hole 105, the second through hole 103 and the third through hole 104 are arranged at intervals in the upper and lower parts on the positioning plug 106, and an embedding groove 305 for the inner part of the positioning plug 106 to be embedded is provided at the upper end of the controller component 3 corresponding to the position of the mounting hole 105. In this structure, the inner part of the positioning plug 106 cooperates with the embedding groove 305, which can play an auxiliary positioning role for the controller component 3, so when the controller component 3 needs to be disassembled, in addition to loosening the first fastener 6, the positioning plug 106 needs to be removed from the mounting hole 105, and in order to facilitate the removal of the positioning plug 106, the outer surface of the positioning plug 106 is also recessed with a groove 1061 for easy finger entry.

[0037] As described above, the battery assembly 2 includes a battery box 21, a battery 22 arranged in the battery box 21, and a battery box upper cover 23 and a battery box lower cover 24 respectively fixedly mounted on the upper and lower open ends of the battery box 21, the battery box upper cover 23 is fixedly connected to the end cover 4, the first electrical connection terminal 201 is arranged inside the battery box lower cover 24, and a socket 241 for inserting the second electrical connection terminal 301 to connect with the first electrical connection terminal 201 is provided on the lower surface of the battery box lower cover 24, and a connecting plate 242 is also protruding from the lower surface of the battery box lower cover 24, and the first connecting hole 202 is provided on the connecting plate 242.

[0038] As described above, the controller assembly 3 includes a controller body 31 and a connecting seat 32 fixedly connected to the upper end of the controller body 31, the second connecting hole 302 and the auxiliary fixing hole 303 are respectively arranged on two opposite side walls of the connecting seat 32 along the length direction of the frame tube 1, and the second connecting hole 302 and the auxiliary fixing hole 303 are arranged at intervals up and down, the second electrical connection terminal 301 is protruded from the upper surface of the connecting seat 32, and the upper surface of the connecting seat 32 is in contact with the lower surface of the battery box lower cover 24.

[0039] As described above, the end cover 4 includes an end cover body 41, and the upper part of the end cover body 41 is provided with a C-shaped opening 411 which is open to one side and has a roughly C-shaped longitudinal cross-section. The upper wall portion of the C-shaped opening 411 forms a handle 412 suitable for human hand grasping, and the inner surface of the lower wall of the C-shaped opening 411 is provided with a power display interface 413. The end cover body 41 is provided with a circuit board 414 electrically connected to the power display interface 413 and the battery 22. A charging interface 415 electrically connected to the circuit board 414 is provided on one side of the lower part of the end cover body 41 perpendicular to the opening direction of the C-shaped opening 411.

[0040] As described above, the end cover lock 5 is a mechanical lock used in conjunction with a key, and the mechanical lock includes a lock body 51 fixedly installed inside the end cover body 41, a lock core rotor 52 rotatably arranged in the lock body 51 and opened by a key, and a lock column 53 driven by the lock core rotor 52 to extend outward for locking and retract inward for unlocking. A key socket 416 for inserting a key into the lock core rotor 52 is provided on the other side of the lower part of the end cover body 41 perpendicular to the opening direction of the C-shaped opening 411, an extension hole 417 for extending the lock column 53 is provided on the side wall of the lower part of the end cover body 41 which is the same as the opening end of the C-shaped opening 411, and a lock hole 107 for the lock column 53 to extend into for locking is provided on the side wall of the upper end of the frame tube 1 corresponding to the position of the lock column 53.

[0041] As described above, a first L-shaped notch portion 418 opposite to the opening direction of the C-shaped opening 411 is provided on the side of the end cover body 41 facing away from the C-shaped opening 411, and a first screw hole 8 is longitudinally opened on the bottom wall of the first L-shaped notch portion 418, and the first screw hole 8 can allow the first screw 9 to longitudinally penetrate the bottom wall of the first L-shaped notch portion 418 from top to bottom and be fixedly connected to the battery box cover 23, and the end cover 4 also includes a first shielding portion 42 covering the first L-shaped notch portion 418 and shielding the first screw 9, and a second screw hole 10 connected to the C-shaped opening 411 is transversely opened on the side wall of the first L-shaped notch portion 418, and the second screw hole 10 can allow the second screw 11 to transversely penetrate the side wall of the first L-shaped notch portion 418 from the C-shaped opening 411 and be fixedly connected to the inner part of the first shielding portion 42, and the end of the second screw hole 10 facing the C-shaped opening 411 is set as a countersunk groove structure in which the cap head of the second screw 10 can be hidden.

[0042] As described above, a second L-shaped notch portion 419 having the same opening direction as the C-shaped opening 411 is provided on the side of the lower part of the end cover body 41 facing away from the first L-shaped notch portion 418, and a third screw hole 12 is longitudinally provided on the bottom wall of the second L-shaped notch portion 419, and the third screw hole 12 allows the third screw 13 to longitudinally penetrate the bottom wall of the second L-shaped notch portion 419 from top to bottom and be fixedly connected to the battery box cover 23, and a fourth screw hole 14 is transversely provided on the side wall of the second L-shaped notch portion 419, and the fourth screw hole 14 allows the fourth screw 15 to transversely penetrate the side wall of the second L-shaped notch portion 419 from outside to inside and be fixedly connected to the lock body 51, and the end cover 4 also includes a second shielding portion 43, one end of the second shielding portion 43 is fixedly connected to the upper end of the side wall of the second L-shaped notch portion 419, and the other end extends outward to shield the third screw 13 and the fourth screw 15.

[0043] As described above, the present invention achieves a hidden effect on the connecting screws between the end cover 4 and the relevant parts through the structural design of the first shielding portion 42 and the second shielding portion 43, and has good aesthetics.

[0044] In addition, it should be specially pointed out that the positional expressions of “upper end” and “lower end” in the present invention are defined based on the placement direction of the drawings, and cannot be used to limit the protection scope of the present invention.

[0045] Finally, what has been described above is only a preferred embodiment of the present invention, and should not be used to limit the scope of implementation of the present invention. That is, any simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the invention description are still within the scope covered by the patent of the present invention.

Claims

1. A convenient disassembly and assembly structure of a battery and a controller of an electric vehicle, comprising a frame tube, a battery assembly, a controller assembly, an end cover and an end cover lock, wherein the battery assembly and the controller assembly are sequentially installed in the frame tube from top to bottom, the upper end of the frame tube is provided with a take-in and put-out opening, the end cover is sealed on the take-in and put-out opening and is locked by the end cover lock; characterized in that: The upper end of the battery assembly is fixedly connected to the end cover, the lower end of the battery assembly is provided with a first electrical connection terminal and a first connection hole, the upper end of the controller assembly is provided with a second electrical connection terminal detachably plugged and connected to the first electrical connection terminal and a second connection hole corresponding to the position of the first connection hole, and the controller assembly is also provided with a secondary fixing hole and a main fixing hole that are staggered from the position of the first connection hole; It also includes a first fastener that is matched with the main fixing hole to fix the controller assembly on the frame tube, and a second fastener that can be selectively matched with the first connection hole and the second connection hole or matched with the auxiliary fixing hole, wherein the first fastener and the second fastener are both screws; When the second fastener is selected to be matched with the first connection hole and the second connection hole, after the end cover lock is opened and the first fastener is loosened, the end cover can be pulled outward to drive the battery assembly and the controller assembly to remove the frame tube from the access port together; when the second fastener is selected to be matched with the secondary fixing hole, after the end cover lock is opened, the end cover can be pulled outward to drive the battery assembly to remove the frame tube from the access port alone; A first through hole is provided at a position corresponding to the main fixing hole on the frame tube for allowing the fixed end of the first fastener to penetrate into the main fixing hole, a second through hole is provided at a position corresponding to the first connecting hole and the second connecting hole on the frame tube, and a third through hole is provided at a position corresponding to the secondary fixing hole on the frame tube; when the second fastener is selected to be matched with the first connecting hole and the second connecting hole, the second fastener is sequentially penetrated into the second connecting hole and the first connecting hole through the second through hole, and the second fastener completely penetrates the second through hole; when the second fastener is selected to be matched with the secondary fixing hole, only the fixed end of the second fastener is penetrated into the secondary fixing hole through the third through hole; The second through hole and the third through hole are arranged at intervals in the upper and lower directions along the length direction of the frame tube, and the second through hole and the third through hole and the first through hole are arranged on two opposite side walls in the length direction of the frame tube.

2. The convenient disassembly and assembly structure of the battery and controller of an electric vehicle according to claim 1, characterized in that: A mounting hole is provided on the side wall of the frame tube, the second connecting hole and the auxiliary fixing hole are arranged at intervals in the upper and lower directions and are both located within the front projection range of the mounting hole, a positioning plug adapted to the shape of the mounting hole is provided in the mounting hole, the second through-hole and the third through-hole are arranged at intervals in the upper and lower directions on the positioning plug, and a recessed groove for the inner part of the positioning plug to be embedded is provided at a position corresponding to the mounting hole on the controller component.

3. The convenient disassembly and assembly structure of the battery and controller of an electric vehicle according to claim 1, characterized in that: The battery assembly includes a battery box, a battery arranged in the battery box, and a battery box upper cover and a battery box lower cover respectively fixedly mounted on the upper and lower open ends of the battery box, the battery box upper cover is fixedly connected to the end cover, the first electrical connection terminal is arranged inside the battery box lower cover, a socket for inserting the second electrical connection terminal to connect with the first electrical connection terminal is provided on the lower surface of the battery box lower cover, a connecting plate is also protruding from the lower surface of the battery box lower cover, and the first connecting hole is provided on the connecting plate.

4. The convenient disassembly and assembly structure of the battery and controller of an electric vehicle according to claim 3, characterized in that: The controller assembly includes a controller body and a connecting seat fixedly connected to the upper end of the controller body, the second connecting hole and the auxiliary fixing hole are respectively arranged on two opposite side walls of the connecting seat along the length direction of the frame tube, and the second connecting hole and the auxiliary fixing hole are arranged at intervals up and down, the second electrical connection terminal is protruded on the upper surface of the connecting seat, and the upper surface of the connecting seat is in contact with the lower surface of the lower cover of the battery box.

5. A convenient disassembly and assembly structure of a battery and a controller of an electric vehicle according to claim 3 or 4, characterized in that: The end cap includes an end cap body, the upper portion of the end cap body is provided with a C-shaped opening which opens to one side and has a roughly C-shaped longitudinal section, the upper wall portion of the C-shaped opening forms a handle suitable for human hand holding, the inner surface of the lower wall of the C-shaped opening is provided with a power display interface, a circuit board electrically connected to the power display interface and the battery assembly is provided inside the end cap body, and a charging interface electrically connected to the circuit board is provided on one side of the lower portion of the end cap body which is perpendicular to the opening direction of the C-shaped opening.

6. The convenient disassembly and assembly structure of the battery and controller of an electric vehicle according to claim 5, characterized in that: The end cover lock is a mechanical lock used in conjunction with a key, and the mechanical lock includes a lock body fixedly installed inside the end cover body, a lock core rotor rotatably arranged in the lock body and opened by a key, and a lock column driven by the lock core rotor to extend outward to lock and retract inward to unlock. A key socket for inserting a key into the lock core rotor is provided on the other side of the lower part of the end cover body that is perpendicular to the opening direction of the C-shaped opening, an extension hole for extending the lock column is provided on the side wall of the lower part of the end cover body that is the same as the opening end of the C-shaped opening, and a lock hole for the lock column to be extended into to lock is provided on the side wall of the upper end of the frame tube corresponding to the position of the lock column.

7. The convenient disassembly and assembly structure of the battery and controller of an electric vehicle according to claim 6, characterized in that: A first L-shaped notch portion opposite to the opening direction of the C-shaped opening is provided on the side of the end cover body facing away from the C-shaped opening, and a first screw hole is longitudinally opened on the bottom wall of the first L-shaped notch portion, and the first screw hole can be used for a first screw to longitudinally penetrate the bottom wall of the first L-shaped notch portion from top to bottom and be fixedly connected to the battery box cover, the end cover also includes a first shielding portion covering the first L-shaped notch portion and shielding the first screw, and a second screw hole connected to the C-shaped opening is transversely opened on the side wall of the first L-shaped notch portion, and the second screw hole can be used for a second screw to transversely penetrate the side wall of the first L-shaped notch portion from the C-shaped opening and be fixedly connected to the inner part of the first shielding portion, and the end of the second screw hole facing the C-shaped opening is arranged as a countersunk groove structure in which the cap head of the second screw can be hidden.

8. The convenient disassembly and assembly structure of the battery and controller of an electric vehicle according to claim 7, characterized in that: A second L-shaped notch portion is provided on the side of the lower part of the end cover body facing away from the first L-shaped notch portion, which is in the same opening direction as the C-shaped opening; a third screw hole is longitudinally provided on the bottom wall of the second L-shaped notch portion, and the third screw hole can allow a third screw to longitudinally penetrate the bottom wall of the second L-shaped notch portion from top to bottom and be fixedly connected to the battery box cover; a fourth screw hole is transversely provided on the side wall of the second L-shaped notch portion, and the fourth screw hole can allow a fourth screw to transversely penetrate the side wall of the second L-shaped notch portion from outside to inside and be fixedly connected to the lock body; the end cover also includes a second shielding portion, one end of the second shielding portion is fixedly connected to the upper end of the side wall of the second L-shaped notch portion, and the other end extends outward to shield the third screw and the fourth screw.

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