Self-locking battery mounting structure

Abstract

The utility model discloses a self-locking battery mounting structure which comprises a battery pack, a battery socket, a battery mounting barrel and an electronic lock, locking grooves are formed in two sides of the lower end of the battery pack; the electronic lock and the battery socket are positioned at the bottom of the battery mounting barrel; the electronic lock comprises a lock hook arm, one end of the lock hook arm is provided with a lock hook, the other end of the lock hook arm is connected with a rotating shaft, and a driving device in the electronic lock can drive the lock hook arm to rotate around the rotating shaft; the battery can be quickly mounted and dismounted, and the positive and negative directions of the battery do not need to be distinguished in the battery mounting process, so that the production efficiency is improved; after the battery is mounted, the battery can be automatically locked, so that the safety of the battery during use is improved; the disassembly process of the battery can be completed only by lifting the battery pack, so that the battery is convenient to replace; and the battery mounting barrel is integrally injection-molded through a profiling manufacturing technology, so that the use safety of the battery pack is further improved.

Description

Technical Field

[0001] The utility model belongs to the field of battery manufacturing, and more specifically, it is a self-locking battery installation structure Background Art

[0002] At present, common battery installations mostly use methods such as bolt fixation. The installation and disassembly are relatively cumbersome, and during the installation process, it is necessary to distinguish the front and back of the battery. If the front and back of the battery are swapped, the battery cannot be installed, reducing production efficiency, and problems such as looseness will occur during the use of the battery. Summary of the Invention

[0003] Object of the Invention: In order to overcome the deficiencies existing in the prior art, the utility model provides a self-locking battery installation structure, which can quickly install and disassemble the battery, and there is no need to distinguish the front and back directions of the battery during the installation process, and it can also lock the battery by itself after the battery installation is completed, improving the safety of the battery during use.

[0004] Technical Solution: To achieve the above object, a self-locking battery installation structure of the utility model includes a battery pack, a battery socket, a battery installation barrel, and an electronic lock. Locking grooves are provided on both sides of the lower end of the battery pack, and the electronic lock and the battery socket are both located at the bottom of the battery installation barrel; the electronic lock includes a lock hook arm, one end of the lock hook arm is provided with a lock hook, the other end of the lock hook arm is connected to a rotating shaft, and a driving device in the electronic lock can drive the lock hook arm to rotate around the rotating shaft.

[0005] In the first state, when the battery pack is inserted into the battery installation barrel, the electrical connector at the lower end of the battery pack is inserted into the battery socket, and the lock hook on the lock hook arm is caught in one of the locking grooves at the lower end of the battery pack.

[0006] In the second state, relative to the first state, the battery pack is swapped in the front and back positions. After the battery pack is inserted into the battery installation barrel, the electrical connector at the lower end of the battery pack is inserted into the battery socket, and the lock hook on the lock hook arm is caught in the other locking groove at the lower end of the battery pack.

[0007] Furthermore, there is a driving slope on the upper surface of the lock hook. The vertical wall on the side of the battery installation barrel close to the electronic lock is denoted as the A vertical wall. The lower end of the A vertical wall is in limit contact with the upper part of the driving slope on the lock hook, so that the lock hook arm cannot rotate clockwise around the rotating shaft. A return spring is arranged outside the rotating shaft. The return spring forms a clockwise elastic torque on the lock hook arm around the rotating shaft. Under the action of the return spring, the driving slope on the lock hook presses against the lower end of the A vertical wall. During the process of the battery pack being inserted downward into the battery installation barrel, the contour at the lower end of the battery pack presses against the driving slope, so that the lock hook receives a component force away from the inner cavity direction of the battery installation barrel, thereby causing the lock hook arm to rotate counterclockwise around the rotating shaft against the elastic force of the return spring.

[0008] Furthermore, a battery socket mounting groove is provided at the bottom of the battery mounting barrel, and the battery socket is mounted on the battery socket mounting groove, and the battery socket mounting groove is arranged at the center of the bottom of the battery mounting barrel.

[0009] Furthermore, the electronic lock also includes a lock seat, the rotating shaft is rotatably engaged with the lock seat, the lock hook arm rotates relative to the lock seat through the rotating shaft, and the driving device is fixedly installed in the lock seat.

[0010] Furthermore, it also includes a frame welding assembly, which includes a protective cover, a seat tube and a five-way shell, the protective cover is fixedly connected to one side of the seat tube; the outer wall of the battery mounting barrel cooperates with the inner wall of the protective cover, and the lock seat of the electronic lock is fixedly installed at the bottom of the protective cover.

[0011] Furthermore, the inner wall of the battery installation barrel is in a trumpet shape that is larger at the top and smaller at the bottom. When the battery pack is fully installed in the battery installation barrel, the upper and lower inner walls of the battery installation barrel can fit with the outer wall of the battery pack.

[0012] Beneficial effects: The utility model provides a self-locking battery installation structure, which can quickly complete the installation and removal of the battery. Locking grooves are provided on both sides of the lower end of the battery pack, so that there is no need to distinguish the positive and reverse directions of the battery during the installation process, which greatly reduces the production steps and improves the production efficiency; the electronic lock located at the lower end of the battery installation barrel can also lock the battery automatically after the battery installation is completed, to prevent the battery from loosening during the practical process, thereby improving the safety of the battery when in use; the driving device in the electronic lock can make it possible to complete the battery removal process by only starting the driving device and then lifting the battery pack upwards when the battery needs to be replaced; the battery installation barrel is integrally injection molded through the imitation manufacturing technology, so that the upper and lower inner walls of the battery installation barrel can fit with the outer wall of the battery pack, to prevent the battery pack from shaking in the battery installation barrel, and further improve the safety of the battery pack when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a self-locking battery installation structure of the utility model when installing a battery pack;

[0014] Figure 2 This is a structural schematic diagram of a self-locking battery installation structure of the utility model when a battery pack is not installed;

[0015] Figure 3 The installation diagram of the battery installation barrel and the battery socket;

[0016] Figure 4 This is a schematic diagram of the installation of the electronic lock and battery pack;

[0017] Figure 5 It is a structural schematic diagram of a battery plug board;

[0018] Figure 6 It is a schematic structural diagram of a frame welding assembly;

[0019] Figure 7 It is a schematic diagram of the process of installing the battery pack into the battery installation barrel;

[0020] Figure 8 It is a cross-sectional view of the battery pack installed in the battery installation barrel Specific implementation manners

[0021] The present utility model will be further described below in conjunction with the accompanying drawings.

[0022] As shown in the attached Figures 1 to 8 As shown in the figure, a self-locking battery installation structure includes a battery pack 1, a battery socket 2, a battery installation barrel 3 and an electronic lock 4. Locking grooves 11 are provided on both sides of the lower end of the battery pack 1, and the two locking grooves 11 are opened at the centers of the lower ends of the two side surfaces of the battery pack 1; the electronic lock 4 and the battery socket 2 are both located at the bottom of the battery installation barrel 3; the electronic lock 4 includes a lock hook arm 41, one end of the lock hook arm 41 is provided with a lock hook 411, the other end of the lock hook arm 41 is connected to a rotating shaft 43, and a driving device 45 in the electronic lock 4 can drive the lock hook arm 41 to rotate around the rotating shaft 43.

[0023] In the first state, after the battery pack 1 is inserted into the battery installation barrel 3, the electrical connection terminal 12 at the lower end of the battery pack 1 is plugged into the battery socket 2. At the same time, the lock hook 411 on the lock hook arm 41 is snapped into one of the locking grooves 11 at the lower end of the battery pack 1.

[0024] In the second state, relative to the first state, the battery pack 1 is reversed front and back. After the battery pack 1 is inserted into the battery installation barrel 3, the electrical connection terminal 12 at the lower end of the battery pack 1 is plugged into the battery socket 2. At the same time, the lock hook 411 on the lock hook arm 41 is snapped into the other locking groove 11 at the lower end of the battery pack 1.

[0025] As Figure 4 shown, the upper surface of the lock hook 411 has a driving inclined surface 412, the driving inclined surface 412 is an arc surface, and the height of the driving inclined surface 412 decreases from left to right. The vertical wall on the side of the battery installation barrel 3 close to the electronic lock 4 is denoted as the A vertical wall 32. The lower end of the A vertical wall 32 is in limit contact with the upper part of the driving inclined surface 412 on the lock hook 411, so that the lock hook arm 41 cannot rotate clockwise around the rotating shaft 43. A return spring 44 is arranged outside the rotating shaft 43. The return spring 44 forms a clockwise elastic torque on the lock hook arm 41 around the rotating shaft 43. When the battery pack 1 is not inserted into the battery installation barrel 3, under the action of the return spring 44, the driving inclined surface 412 on the lock hook 411 is pressed against the lower end of the A vertical wall 32. As Figure 7As shown, during the process of inserting the battery pack 1 downward into the battery installation barrel 3, the contour at the lower end of the battery pack 1 presses against the driving inclined surface 412, causing the locking hook 411 to receive a component force away from the inner cavity of the battery installation barrel 3, so that the locking hook arm 41 rotates counterclockwise around the rotating shaft 43 against the elastic force of the return spring 44.

[0026] As Figure 4 shown, after the battery pack 1 is inserted to the bottom of the battery installation barrel 3, under the action of the clockwise elastic torque formed by the return spring 44 on the locking hook arm 41 around the rotating shaft 43, the locking hook arm 41 rotates clockwise around the rotating shaft 43 until the driving inclined surface 412 on the locking hook 411 presses against the lower end of the A vertical wall 32, so that the locking hook 411 on the locking hook arm 41 can just be engaged into another locking groove 11 at the lower end of the battery pack 1.

[0027] As Figure 2 shown, a frame welding assembly 5 is arranged around the battery installation barrel 3, and the battery installation barrel 3 is installed in the frame welding assembly 5; as Figure 3 shown, a battery socket installation groove 31 is opened at the bottom of the battery installation barrel 3, and the battery socket 2 is installed on the battery socket installation groove 31. The battery socket installation groove 31 is arranged at the center of the bottom of the battery installation barrel 3, so as to ensure that no matter the battery pack 1 is inserted into the battery installation barrel 3 in the first state or the second state, the battery socket 2 can be electrically connected to the electrical connection terminal 12 at the lower end of the battery pack 1; a card slot 34 is arranged around the upper end of the battery installation barrel 3, and a sleeve hole 33 is opened on one side of the upper end of the battery installation barrel 3. The sleeve hole 33 is sleeved on the frame welding assembly 5; a plurality of connection holes 36 are arranged around the sleeve hole 33, and the battery installation barrel 3 is fixedly installed in the frame welding assembly 5 through the cooperation of fasteners and a plurality of connection holes 36.

[0028] As Figure 5 shown, the battery socket 2 includes a mounting plate 21 and a battery connection piece 22. The battery connection piece 22 is embedded in the mounting plate 21. The battery connection piece 22 is located at the center of the mounting plate 21 and protrudes with a plurality of electrode pieces 221 in the direction away from the bottom of the battery installation barrel 3. The plurality of electrode pieces 221 are symmetrically distributed front and back and fixedly connected to the battery connection piece 22, so as to ensure that no matter the battery pack 1 is inserted into the battery installation barrel 3 in the first state or the second state, the plurality of electrode pieces 221 can be electrically connected to the electrical connection terminal 12 at the lower end of the battery pack 1; a plurality of mounting holes 212 are distributed at the four corners of the mounting plate 21. The battery socket 2 is fixedly installed on the battery socket installation groove 31 at the bottom of the battery installation barrel 3 through the cooperation of fasteners and a plurality of mounting holes 212. A plurality of power connection grooves 211 are opened around the periphery of the mounting plate 21. After the plurality of electrode pieces 221 are electrically connected to the electrical connection terminal 12, the frame welding assembly 5 is connected to the plurality of power connection grooves 344 through wires, so that the frame welding assembly 5 can be electrically connected to the battery pack 1.

[0029] As shown Figure 4 in the figure, the electronic lock 4 further includes a lock base 42. A rotating shaft 43 is fixedly connected to one end of the lock base 42. A lock hook arm 41 rotates relative to the lock base 42 through the rotating shaft 43. An inclined spring contact surface is provided at the lower end of the lock hook arm 41. The return spring 44 provided outside the rotating shaft 43 is a torsion spring. When the battery pack 1 has not been inserted into the battery installation barrel 3, under the action of the clockwise elastic torque formed by the return spring 44 on the lock hook arm 41 around the rotating shaft 43, the driving inclined surface 412 on the lock hook 411 presses against the lower end of the A vertical wall 32; the driving device 45 is fixedly installed in the lock base 42, and the driving device is a motor. When the battery needs to be replaced, the driving device 45 fixedly installed in the lock base 42 can generate a counterclockwise thrust on the lower end of the lock hook arm 41 around the rotating shaft 43, so that the lock hook arm 41 can overcome the clockwise elastic torque formed by the return spring 44 on the lock hook arm 41 around the rotating shaft 43 and rotate counterclockwise around the rotating shaft 43, so that the lock hook 411 on the lock hook arm 41 is disengaged from the locking groove 11 on the lower end of the battery pack 1 that is buckled with the lock hook 411, and the driving inclined surface 412 on the lock hook 411 is disengaged from the limiting relationship with the lower end of the A vertical wall 32. In this state, the driving device 45 still makes the lock hook arm 41 rotate counterclockwise around the rotating shaft 43. At this time, the battery pack 1 is lifted upward, so that several electrode pieces 221 are separated from the electrical connection joints 12 at the lower end of the battery pack 1, the electrical connection between the battery socket 2 and the electrical connection joints 12 at the lower end of the battery pack 1 is disconnected, and the battery pack 1 is continuously lifted upward. When the battery pack 1 is completely separated from the battery installation barrel 3, the driving device 45 is turned off. Under the action of the clockwise elastic torque formed by the return spring 44 on the lock hook arm 41 around the rotating shaft 43, the driving inclined surface 412 on the lock hook 411 presses against the lower end of the A vertical wall 32 again.

[0030] As shown Figure 6 in the figure, the frame welding assembly 5 includes a protective cover 51, a seat tube 52 and a bottom bracket shell 53. The seat tube 52 is fixedly connected to one side of the protective cover 5. The sleeve hole 33 at the upper end of the battery installation barrel 3 is sleeved on the seat tube 52; the bottom bracket shell 53 is installed at the lower end of the protective cover 51. The bottom bracket shell 53 is connected to several power connection slots 344 on the battery socket 2 through wires, so that the bottom bracket shell 53 can be electrically connected to the battery pack 1, so that the battery pack 1 can provide power for the bottom bracket shell 53; the outer wall of the battery installation barrel 3 cooperates with the inner wall of the protective cover 51. When the battery installation barrel 3 is installed in the frame welding assembly 5, the outer wall of the battery installation barrel 3 fits against the inner wall of the protective cover 51, and the upper end of the protective cover 51 is snapped into the card slot 34 at the upper end of the battery installation barrel 3; the lock base 42 of the electronic lock 4 is fixedly installed at the bottom of the protective cover 51.

[0031] In order to ensure that the electrical connector 12 at the lower end of the battery pack 1 can be plugged into the battery socket 2 whether the battery pack 1 is inserted into the battery installation barrel 3 in the first state or the second state, the battery installation barrel 3 is integrally injection molded by profiling manufacturing technology. The battery socket installation groove 31 on the profiling-manufactured battery installation barrel 3 can ensure that the battery socket 34 is accurately installed at the center of the bottom of the battery installation barrel 3, so that the electrical connector 12 at the lower end of the battery pack 1 can accurately be plugged into the battery socket 2 whether the battery pack 1 is inserted into the battery installation barrel 3 in the first state or the second state.

[0032] In order to ensure the installation accuracy during the installation of the battery pack 1 into the battery installation barrel 3, the inner wall of the battery installation barrel 3 is in a flared shape. When the battery pack 1 is inserted into the battery installation barrel 3, the inner wall of the battery installation barrel 3 can guide the battery pack 1, so that the electrical connector 12 at the lower end of the battery pack 1 can accurately correspond above the battery socket 2, thereby ensuring that the electrical connector 12 at the lower end of the battery pack 1 can accurately be plugged into the battery socket 2; as Figure 8 shown, the draft angle of the inner wall of the battery installation barrel 3 is small. When the battery pack 1 is completely installed in the battery installation barrel 3, both the upper and lower parts of the inner wall of the battery installation barrel 3 can fit with the outer wall of the battery pack 1, avoiding the shaking and vibration of the battery pack 1 in the battery installation barrel 3 and improving the safety during the use of the battery pack 1.

[0033] The above is the preferred embodiment described in the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches can be made, and these improvements and retouches should also be regarded as within the protection scope of the present invention.

Claims

1. A self-locking battery installation structure, characterized in that: It includes a battery pack (1), a battery socket (2), a battery installation barrel (3) and an electronic lock (4). On both sides of the lower end of the battery pack (1), locking grooves (11) are provided. The electronic lock (4) and the battery socket (2) are both located at the bottom of the battery installation barrel (3). The electronic lock (4) includes a lock hook arm (41). At one end of the lock hook arm (41), a lock hook (411) is provided. The other end of the lock hook arm (41) is connected to a rotating shaft (43). A driving device (45) inside the electronic lock (4) can drive the lock hook arm (41) to rotate around the rotating shaft (43). In the first state, when the battery pack (1) is inserted into the battery installation barrel (3), the electrical connector (12) at the lower end of the battery pack (1) is plugged into the battery socket (2), and the lock hook (411) on the lock hook arm (41) is snapped into one of the locking grooves (11) at the lower end of the battery pack (1). In the second state, relative to the first state, the battery pack (1) is swapped in the front-back position. After the battery pack (1) is inserted into the battery installation barrel (3), the electrical connector (12) at the lower end of the battery pack (1) is plugged into the battery socket (2), and the lock hook (411) on the lock hook arm (41) is snapped into the other locking groove (11) at the lower end of the battery pack (1).

2. The self-locking battery installation structure according to claim 1, wherein: On the upper surface of the lock hook (411), there is a driving inclined surface (412). The vertical wall on the side of the battery installation barrel (3) close to the electronic lock (4) is denoted as the A vertical wall (32). The lower end of the A vertical wall (32) is in limiting contact with the upper part of the driving inclined surface (412) on the lock hook (411), so that the lock hook arm (41) cannot rotate clockwise around the rotating shaft (43). A return spring (44) is arranged outside the rotating shaft (43). The return spring (44) forms a clockwise elastic torque on the lock hook arm (41) around the rotating shaft (43). Under the action of the return spring (44), the driving inclined surface (412) on the lock hook (411) presses against the lower end of the A vertical wall (32). During the process of the battery pack (1) being inserted downward into the battery installation barrel (3), the contour at the lower end of the battery pack (1) presses against the driving inclined surface (412), so that the lock hook (411) receives a component force in the direction away from the inner cavity of the battery installation barrel (3), thereby causing the lock hook arm (41) to rotate counterclockwise around the rotating shaft (43) against the elastic force of the return spring (44).

3. The self-locking battery installation structure according to claim 1, wherein: A battery socket installation groove (31) is formed at the bottom of the battery installation barrel (3). The battery socket (2) is installed on the battery socket installation groove (31). The battery socket installation groove (31) is arranged at the center of the bottom of the battery installation barrel (3).

4. A self-locking battery installation structure according to claim 2, characterized in that: The electronic lock (4) further includes a lock seat (42). The rotating shaft (43) is rotatably fitted on the lock seat (42). The lock hook arm (41) rotates relative to the lock seat (42) through the rotating shaft (43). The driving device is fixedly installed in the lock seat (42).

5. The self-locking battery installation structure according to claim 1, wherein: It further includes a frame welding assembly (5), and the frame welding assembly (5) includes a protective cover (51), a seat tube (52) and a bottom bracket shell (53). The protective cover (51) is fixedly connected to one side of the seat tube (52); the outer wall of the battery installation barrel (3) is matched with the inner wall of the protective cover (51), and the lock base (42) of the electronic lock (4) is fixedly installed at the bottom of the protective cover (51).

6. The self-locking battery mounting structure according to claim 3, wherein: The inner wall of the battery installation barrel (3) is in a flared shape with a larger upper part and a smaller lower part. When the battery pack (1) is completely installed in the battery installation barrel (3), both the upper and lower parts of the inner wall of the battery installation barrel (3) can be fitted with the outer wall of the battery pack (1).

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