Quick off-line structure of lithium battery of electric motorcycle

Abstract

The utility model discloses a rapid off-line structure of a lithium battery of an electric motorcycle. The rapid off-line structure comprises a rapid power connection socket piece arranged on the lithium battery and a rapid power connection plug piece which is arranged on a frame of the electric motorcycle and forms rapid plug-in installation with the rapid power connection socket piece. The quick power connection plug piece comprises a quick off-line rotating support. According to the quick wire-off structure of the lithium battery of the electric motorcycle, the quick wire-off rotating bracket is adopted to assist the quick power connection plug piece to be quickly pulled out of the quick power connection socket piece by at least more than half, and then the quick power connection plug piece is slightly pulled out of the quick power connection socket piece with force, so that the wire-off work is conveniently and quickly finished; and the battery replacement efficiency of the lithium battery on the electric motorcycle is improved and accelerated, so that the battery replacement process is effectively simplified and convenient, and time and labor are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of drive lithium battery of electric motorcycle is powered off when being taken out, especially to a kind of quick wire-off structure of electric motorcycle lithium battery. BACKGROUND

[0002] In recent years, when electric motorcycle uses lithium battery as the mode of electric drive, lithium battery is generally fixedly installed on the frame of electric motorcycle and is not randomly disassembled;And the applicant has developed a kind of lithium battery, which can be quickly and conveniently taken off from the electric motorcycle, and the lithium battery can be quickly disassembled and the electric motorcycle can be replaced with electricity.But, the electric connection between lithium battery and electric motorcycle is achieved by using conventional plug and socket connection structure, and in actual use, many problems are found in frequent plugging and unplugging, as follows:(1) In order to realize the power connection safety of lithium battery and electric motorcycle, the conventional plug is generally plugged in the socket tightly, and when pulling out the plug, it is often necessary to hold the plug with a larger force to pull out the plug from the socket, or to shake the plug a few times to pull out a certain distance from the socket before pulling out the plug completely from the socket;Using the above structure, the plug is pulled out from the socket with a large force, which is not convenient to pull out the plug, and the wire-off between lithium battery and plug is not easy, and the lithium battery replacement operation is not smooth and fast;And in the process of pulling out the plug, the hand is often painful when plugging the plug, and the hand is seriously scratched.(2) The conventional plug shell has solid and hollow structure, and when the plug shell inserted into the socket is hollow structure, the thickness of the hollow shell is used to realize the strength without deformation when plugging;But the increase of the thickness of the hollow shell will still cause deformation in the process of long-term use and extrusion, or the strength will decrease after long-term use and aging;And the increase of thickness is only the peripheral strength, and the internal structure is still hollow without support, which is easy to deform due to heat in actual use.(3) Because the conventional plug and socket are plugged tightly, when pulling out the plug, the part of the plug held by hand is very close to the end face of the socket, and when short circuit or improper plugging or unexpected failure occurs, the plug is connected to the socket, and the electric spark is generated at a moment, which may cause damage to the hand, or the user is frightened by the electric spark, and the safety of the user is not further improved.

[0003] Therefore, it is necessary to improve the lithium battery plug structure of the existing electric motorcycle to solve the above problems. SUMMARY

[0004] The utility model discloses a quick wire-off structure of electric motorcycle lithium battery which overcomes the defects of the prior art and can quickly pull out the quick power connection plug from the quick power connection socket, thereby improving the efficiency of replacing the lithium battery on the electric motorcycle and facilitating the replacement process.

[0005] The utility model discloses a quick wire-off structure of electric motorcycle lithium battery which overcomes the defects of the prior art and can quickly pull out the quick power connection plug from the quick power connection socket, thereby improving the efficiency of replacing the lithium battery on the electric motorcycle and facilitating the replacement process.

[0006] The quick power connection socket comprises a socket base plate fixedly installed on the outer side of the lithium battery and a plug-in power connection seat arranged on the back of the socket base plate and protruding into the lithium battery.

[0007] The quick power connection plug comprises a wire connection seat with high-voltage wires, a handheld wire connection seat integrally connected to the end of the wire connection seat, a plug-in head integrally connected to the end of the handheld wire connection seat and protruding to correspondingly match and be inserted into the plug-in power connection seat, and a quick wire-off rotating support hingedly installed on both sides of the handheld wire connection seat and rotatable to press against the socket base plate so that the plug-in head is withdrawn from the plug-in power connection seat.

[0008] Further, the quick wire-off rotating support comprises a U-shaped rotating frame hingedly installed with the handheld wire connection seat and in a U-shaped form, and a pressing portion is arranged at the end of the U-shaped rotating frame facing the socket base plate; the hinged point of the U-shaped rotating frame is close to the connection position of the handheld wire connection seat and the plug-in head, the pressing end face of the pressing portion can protrude outside the outer side of the plug-in head when the U-shaped rotating frame rotates, and the pressing end face of the pressing portion is an arc-shaped end face.

[0009] Further, three plug-in sheets are independently arranged in the plug-in head, and a reinforcing support plate is arranged to reinforce the support strength of the plug-in head; the plug-in power connection seat is provided with plug-in slots corresponding to the plug-in sheets.

[0010] Further, one side of the plug-in head is in a trapezoidal shape, and the other side is in a square shape integrally connected to the trapezoidal shape; the plug-in power connection seat is in a shape matching the plug-in head.

[0011] Further, the cross-sectional area of the socket substrate is larger than the cross-sectional area of the plug contact socket and the handheld contact socket, the cross-sectional area of the handheld contact socket is larger than the cross-sectional area of the plug contact socket and the plug head; the plug contact socket is located at the central position of the socket substrate.

[0012] In summary, the quick wire-off structure of the electric motorcycle lithium battery adopts the quick wire-off rotating support to assist the quick power connection plug to be quickly pulled out from the quick power connection socket by at least more than half, and then the quick power connection plug is pulled out from the quick power connection socket, so that the wire-off work is conveniently and quickly completed, the lithium battery is quickly replaced on the electric motorcycle, the replacement process is effectively simplified and convenient, time and labor are saved; and during wire-off, the quick wire-off rotating support is only slightly rotated, and then the power connection plug is pulled to complete the wire-off process, the hand does not need to be very close to the position of the quick power connection socket, and the damage of electric spark generated by wire-off accident and short circuit to the hand is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic view of a quick wire-off structure of an electric motorcycle lithium battery of embodiment 1;

[0014] Figure 2 is a schematic view of a quick power connection socket and a quick power connection plug of a quick wire-off structure of an electric motorcycle lithium battery of embodiment 1 before plug-in installation;

[0015] Figure 3 is another schematic view of a quick power connection socket and a quick power connection plug of a quick wire-off structure of an electric motorcycle lithium battery of embodiment 1 before plug-in installation;

[0016] Figure 4 is a schematic view of a quick power connection socket and a quick power connection plug of a quick wire-off structure of an electric motorcycle lithium battery of embodiment 1 after plug-in;

[0017] Figure 5 is a schematic view of a quick wire-off action of a quick power connection socket and a quick power connection plug of a quick wire-off structure of an electric motorcycle lithium battery of embodiment 1;

[0018] Figure 6 is another schematic view of a quick wire-off action of a quick power connection socket and a quick power connection plug of a quick wire-off structure of an electric motorcycle lithium battery of embodiment 1;

[0019] Figure 7 is a schematic view of complete wire-off separation of a quick power connection socket and a quick power connection plug of a quick wire-off structure of an electric motorcycle lithium battery of embodiment 1;

[0020] Figure 8is a schematic view of a quick connection plug member;

[0021] Figure 9 is a schematic view of a quick connection socket member;

[0022] The reference signs in the drawings are as follows: 1. quick connection socket member; 2. quick connection plug member; 3. socket base plate; 4. plug connection socket; 5. wire connection socket; 6. hand-held wire connection socket; 7. plug connection head; 8. quick disconnection rotary support; 9. rotary shaft; 10. U-shaped rotary frame; 11. pressing portion; 12. plug connection piece; 13. reinforcing support plate; 14. plug connection slot. DETAILED DESCRIPTION

[0023] Example 1

[0024] The quick disconnection structure of the lithium battery of the electric motorcycle described in this example 1, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , includes a quick connection socket member 1 mounted on the lithium battery and a quick connection plug member 2 mounted on the frame of the electric motorcycle to form a quick plug connection installation. The quick disconnection structure is composed of two component assemblies, including the quick connection socket member and the quick connection plug member, wherein the quick connection socket member is fixedly arranged on the lithium battery, and the quick connection plug member is arranged on the frame of the electric motorcycle and the plug end is rotatable and retractable within a certain range to facilitate the plug connection with the quick connection socket member; the quick connection socket member is a female plug member, and the quick connection plug member is a male plug member, and the design of one male and one female realizes the matching and firm plug connection.

[0025] As shown in Figure 9 , the quick connection socket member includes a socket base plate 3 fixedly mounted on the outer side of the lithium battery and a plug connection socket 4 arranged on the back of the socket base plate and extending rearward to be arranged in the lithium battery. The socket base plate is tightly attached to the outer side of the lithium battery and only slightly protrudes from the outer side of the lithium battery, and the plug connection socket is arranged in the lithium battery and connected with the battery cell and the like in the lithium battery.

[0026] As shown in Figure 8As shown, the quick plug-in connector includes a wire connector base 5 with high-voltage wires, a handheld wire connector 6 integrally connected to the end of the wire connector base, a plug-in head 7 integrally connected to the end of the handheld wire connector and protruding to correspondingly match the plug-in connector base, and a quick disconnecting rotating support 8 hingedly mounted on both sides of the handheld wire connector and rotatable to press against the base plate of the plug-in connector base to make the plug-in head exit from the plug-in connector base. The quick plug-in connector is basically composed of the wire connector base, the handheld wire connector, the plug-in head, and the quick disconnecting rotating support. The wire connector base is used for protecting the connection position between the high-voltage wires and the handheld wire connector to enhance the connection safety. The handheld wire connector is used for the handheld part of the entire quick plug-in connector during the connection and disconnection of the wires. Holding the handheld part can easily achieve the work of plugging and disconnecting the wires. The plug-in head is used for plugging into the plug-in connector base to form a plug-in installation. The outside of the handheld wire connector is provided with the hingedly rotating quick disconnecting rotating support. When it is needed to make the quick plug-in connector exit from the quick plug-in connector base, the quick disconnecting rotating support is slightly rotated, the end of the quick disconnecting rotating support will press against the end surface of the quick plug-in connector base to make the quick plug-in connector push out from the quick plug-in connector base. With the quick disconnecting rotating support continuously pressing against the quick plug-in connector base, the quick plug-in connector is also gradually pushed out until the quick disconnecting rotating support presses against the quick plug-in connector base to the maximum pressure value, the plug-in head of the quick plug-in connector has basically been disconnected from the plug-in connector base by more than half. In this way, the quick plug-in connector can be easily pulled out by slightly holding the handheld wire connector, which is convenient and labor-saving and can quickly and conveniently complete the work of disconnecting the wires.

[0027] In the embodiment 1, the quick disconnection rotating support comprises a U-shaped rotating frame 10 hinged to the rotating shaft 9 and the handheld terminal, and a pressing part 11 arranged at the end of the U-shaped rotating frame facing the socket substrate. The hinge point of the U-shaped rotating frame is close to the connection position of the handheld terminal and the plug-in head, the pressing end surface of the pressing part can protrude outside the outer surface of the plug-in head when the U-shaped rotating frame rotates, and the pressing end surface of the pressing part is arc-shaped. The rotating range of the quick disconnection rotating support is limited by the top of the U-shaped rotating frame which stops rotating when the top of the U-shaped rotating frame abuts against the upper and lower surfaces of the terminal seat, that is, the quick disconnection rotating support stops rotating when it rotates to this position, and the quick disconnection rotating support can basically rotate around the handheld terminal and the plug-in head. The pressing part of the quick disconnection rotating support is the end surface which presses the socket substrate to realize the withdrawal of the plug-in head from the plug-in terminal. When the U-shaped rotating frame rotates, the length of the pressing part protruding outside the plug-in head is the withdrawal distance of the plug-in head from the plug-in terminal, and the maximum protruding length of the pressing part is when the axis of the U-shaped rotating frame is parallel to the handheld terminal. When the plug-in head does not need to be disconnected from the plug-in terminal, the pressing part can be integrally rotated to the position outside the outer surface of the handheld terminal. Finally, the arc-shaped pressing end surface of the pressing part facilitates the pressing of the socket substrate without scratching the surface of the socket substrate, and can increase the contact area of the pressing, realizing the quick withdrawal and smoothness of the plug-in head.

[0028] In the embodiment 1, the plug-in head is provided with three plug-in pieces 12 which are independently separated, and a reinforcing support plate 13 for strengthening the support strength of the plug-in head. The plug-in terminal is provided with plug-in slots 14 which are matched with the corresponding plug-in pieces. The plug-in pieces and the plug-in slots are correspondingly matched, and are three plug-in structures, etc. The plug-in pieces arranged in the plug-in head can protect the plug-in pieces from being exposed and directly contacting water vapor. The reinforcing support plate can strengthen the support strength of the hollow structure of the plug-in head, and plays a role similar to a reinforcing rib, ensuring that the plug-in head remains unchanged in strength during frequent plugging.

[0029] In the embodiment 1, one side of the plug-in head is trapezoidal, and the other side is square and integrated with the trapezoidal shape. The shape of the plug-in terminal is matched with the shape of the plug-in head.

[0030] In the embodiment 1, the cross-sectional area of the socket substrate is larger than the cross-sectional area of the plug-in terminal and the handheld terminal, the cross-sectional area of the handheld terminal is larger than the cross-sectional area of the plug-in terminal and the plug-in head, and the plug-in terminal is located at the central position of the socket substrate.

[0031] In the embodiment 1, the quick unwiring structure of the electric motorcycle lithium battery adopts a quick unwiring rotating support to help the quick power connection plug member to be quickly unwired from the quick power connection socket member by at least more than half, and then the quick power connection plug member is gently pulled out from the quick power connection socket member, so that the unwiring work is conveniently and quickly completed, the lithium battery replacement efficiency from the electric motorcycle is improved and accelerated, the lithium battery replacement process is effectively simplified and convenient, time and labor are saved; and during unwiring, the quick unwiring rotating support is only needed to be gently rotated, and then the power connection plug member is gently pulled to complete the unwiring process, the hand does not need to be very close to the position of the quick power connection socket member, and the damage of electric spark generated by unwiring accidents, short circuit and the like to the hand is reduced.

[0032] The above is only a preferred embodiment of the present application, and does not limit the structure of the present application in any form. Any simple modification, equivalent change and modification of the above embodiment according to the technical essence of the present application still belongs to the technical solution range of the present application.

Claims

1. A rapid disconnection structure for a lithium battery in an electric motorcycle, characterized in that, Includes a quick-connect socket (1) installed on a lithium battery and a quick-connect plug (2) installed on the frame of an electric motorcycle to form a quick-connect installation with the quick-connect socket; —The quick-connect socket includes a socket base (3) fixedly installed on the outer side of the lithium battery, and a plug socket (4) located on the back of the socket base and extending rearward into the lithium battery. The quick-connect plug assembly includes a connector base (5) with a high-voltage wire, a handheld connector base (6) integrally connected to the end of the connector base, a plug (7) integrally connected to the end of the handheld connector base and protruding to be inserted into the plug connector base, and a quick-release rotating bracket (8) hinged to both sides of the handheld connector base and rotatably pressed against the socket base plate to allow the plug to retract from the plug connector base.

2. The rapid disconnection structure for an electric motorcycle lithium battery according to claim 1, characterized in that, The quick-release rotating bracket includes a U-shaped rotating frame (10) that is hinged to the handheld terminal block by a rotating shaft (9) and is U-shaped. A pressing part (11) is provided at the end of the U-shaped rotating frame facing the socket base plate. The hinge point of the U-shaped rotating frame is close to the connection position between the handheld terminal block and the plug. The pressing end face of the pressing part can protrude out of the outer side of the plug as the U-shaped rotating frame rotates. The pressing end face of the pressing part is an arc-shaped end face.

3. The rapid disconnection structure for an electric motorcycle lithium battery according to claim 2, characterized in that, The plug head is provided with three independent plug pieces (12) and a reinforcing support plate (13) for strengthening the support strength of the plug head; the plug socket is provided with a plug slot (14) that is matched and installed with the corresponding plug pieces.

4. The rapid disconnection structure for an electric motorcycle lithium battery according to claim 3, characterized in that, The plug has a trapezoidal shape on one side and a square shape on the other side that is connected to the trapezoidal shape to form a whole; the shape of the plug socket matches the shape of the plug.

5. The rapid disconnection structure for an electric motorcycle lithium battery according to claim 4, characterized in that, The cross-sectional area of ​​the socket base plate is larger than that of the plug socket and the handheld terminal block, and the cross-sectional area of ​​the handheld terminal block is larger than that of the plug socket and the plug head; the plug socket is located in the center of the socket base plate.

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