CN219427929U

CN219427929U - New energy battery pack commutation locking device

Info

Publication number: CN219427929U
Application number: CN202321240634.5U
Authority: CN
Inventors: 周辉; 王志富; 商建光
Original assignee: Beijing Huicheng Power Technology Co ltd
Current assignee: Beijing Huicheng Power Technology Co ltd
Priority date: 2023-05-22
Filing date: 2023-05-22
Publication date: 2023-07-28
Anticipated expiration: 2033-05-22

Abstract

The utility model provides a new energy battery pack power-exchanging locking device which comprises a vehicle-mounted bracket and a battery pack bracket, wherein a nut seat is arranged on the vehicle-mounted bracket, a lock shaft screw rod matched with the nut seat is rotatably connected to the battery pack bracket, the lower section of the lock shaft screw rod is a pulling section, a ratchet wheel is arranged at the upper part of the pulling section or the lower part of the lock shaft screw rod, and a locking claw capable of being clamped on the ratchet wheel is rotatably arranged on the battery pack bracket through a rotating shaft; the ratchet wrench also comprises a shifting mechanism, and when the wrench tool is completely sleeved in the wrench section, the locking claw can be shifted by the shifting mechanism to be separated from the ratchet wheel. When the tightening gun is sleeved into the pulling section, the pushing pin is extruded upwards, the locking claw is pushed by the pushing piece to separate from the ratchet, then the pulling section is twisted to screw the locking shaft screw into the nut seat, when the tightening gun is completely screwed in, the ratchet and the locking claw are positioned at the same height, after the tightening gun is loosened at the moment, the locking claw is clamped on the ratchet, and the locking claw and the ratchet are matched to prevent looseness between the locking shaft screw and the nut seat.

Description

New energy battery pack commutation locking device

Technical Field

The utility model relates to the technical field of new energy battery pack replacement, in particular to a new energy battery pack replacement locking device.

Background

In recent years, batteries have been widely used in the field of heavy truck of electric automobiles as a convenient energy source for replacement. In the development process of the light truck of the electric automobile, a plurality of technical problems to be solved still exist, the large-scale popularization of the electric automobile is restricted by the barriers, and the charging problem is one of the remarkable barriers. In connection with an internal combustion engine vehicle in which fuel can be quickly replenished at a filling station

In contrast, an electric car light truck requires a special charging facility and takes a lot of time for each charging. Therefore, replacing a battery pack (simply called battery replacement) as a quick energy supplementing mode for an electric automobile is becoming more and more important for all parties.

Between the electric automobile and the replaceable battery pack, a battery pack locking mechanism for fastening the electric automobile and the battery pack is generally arranged, and the specific structure of the locking mechanism greatly influences the power exchange efficiency. Most of the existing battery pack locking mechanisms adopt bolt tightening mechanisms to fasten the battery pack on an automobile, but after the conventional bolt tightening mechanisms are locked, the conventional battery pack locking mechanisms are easy to loosen under long-time driving vibration of the automobile, and serious potential safety hazards such as failure or falling of the battery pack are caused.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a new energy battery pack power-exchanging locking device, which solves the problems in the prior art.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the battery pack replacement locking device comprises a vehicle-mounted bracket fixed on a vehicle and a battery pack bracket fixed on a battery pack, wherein a nut seat is arranged on the vehicle-mounted bracket, a lock shaft screw rod matched with the nut seat is rotationally connected to the battery pack bracket, the lower section of the lock shaft screw rod is a pulling section, a ratchet wheel is arranged on the upper part of the pulling section or the lower part of the lock shaft screw rod, and a locking claw capable of being clamped on the ratchet wheel is rotationally arranged on the battery pack bracket through a rotating shaft; the ratchet wrench also comprises a shifting mechanism, and when the wrench tool is completely sleeved in the wrench section, the locking claw can be shifted by the shifting mechanism to be separated from the ratchet wheel.

Preferably, the pulling section and the pulling mechanism are sleeved with a lock shell, and the lower section of the pulling section extends out of the bottom of the lock shell.

Preferably, the toggle mechanism comprises a guide pipe and a pushing pin capable of vertically sliding in the guide pipe, a toggle hole is formed in one end, far away from the rotating shaft, of the locking claw, the guide pipe penetrates through the toggle hole and is fixed on the battery pack support, a slot is formed in one side of the guide pipe, a wedge-shaped pushing piece penetrating through the slot is arranged on the pushing pin, the pushing piece moves upwards to squeeze the toggle hole, the locking claw rotates in a direction away from the ratchet wheel, and the lower section of the pushing pin stretches out of the bottom of the lock shell.

Preferably, the top end of the pushing pin is provided with a spring which is propped against the battery pack bracket.

Preferably, a torsion spring is arranged on the rotating shaft of the locking claw.

Preferably, a positioning sleeve is arranged on the vehicle-mounted support, a positioning rod capable of jacking in the positioning sleeve is vertically arranged on the battery pack support, and when the positioning rod jacks in the positioning sleeve, the lock shaft screw rod corresponds to the nut seat up and down.

The utility model provides a new energy battery pack power-exchanging locking device. The beneficial effects are as follows:

1. this new energy battery package trades electric locking means, when tightening the rifle and embolias the section of pulling, upwards extrude the promotion round pin, stir the locking claw through the pushing piece and break away from the ratchet, then twist and pull the section of pulling and screw in the nut seat with the lock axle screw rod, when screwing in completely, ratchet and locking claw are in same highly, loosen at this moment and tighten the rifle after, the locking claw chucking is on the ratchet, the cooperation of locking claw and ratchet can effectively prevent not hard up between lock axle screw rod and the nut seat, promote the stability of on-vehicle battery package, and the installation rate is fast, thereby realize convenient, laborsaving, the safe new energy automobile battery assembly fixture of battery.

Drawings

FIG. 1 is a connection isometric view of the present utility model;

FIG. 2 is a diagram of the components on the vehicle mount and the battery pack mount of the present utility model;

FIG. 3 is a diagram of the nut seat and lock shaft screw of the present utility model;

FIG. 4 is a schematic view of the interior of the lock housing of the present utility model;

fig. 5 is a cross-sectional view of the connection of the present utility model.

In the figure: the device comprises a vehicle-mounted support 1, a battery pack support 2, a nut seat 3, a lock shell 4, a pulling section 5, a lock shaft screw rod 6, a positioning sleeve 7, a positioning rod 8, a ratchet wheel 9, a locking claw 10, a rotating shaft 11, a shifting hole 12, a guide tube 13, a pushing pin 14, a pushing piece 15 and a tightening gun 16.

Detailed Description

The embodiment of the utility model provides a new energy battery pack power-exchanging locking device, which is shown in figures 1-5 and comprises a vehicle-mounted bracket 1 fixed on a vehicle and a battery pack bracket 2 fixed on a battery pack.

Be provided with nut seat 3 on the on-vehicle support 1, the last rotation of battery package support 2 is connected with the lock axle screw rod 6 with nut seat 3 looks adaptation, and lock axle screw rod 6 adopts threaded connection's mode with battery package support 2, and when lock axle screw rod 6 rotated, lock axle screw rod 6 can upwards move. The battery pack is mounted by connecting the lock shaft screw 6 with the nut seat 3.

As shown in fig. 2, in order to facilitate the locking shaft screw rod 6 to be screwed into the nut seat 3, a positioning sleeve 7 is arranged on the vehicle-mounted bracket 1, a positioning rod 8 capable of jacking in the positioning sleeve 7 is vertically arranged on the battery pack bracket 2, and when the positioning rod 8 jacks in the positioning sleeve 7, the locking shaft screw rod 6 corresponds to the nut seat 3 up and down, so as to play a role in positioning.

As shown in fig. 2-3, the lower section of the lock shaft screw 6 is a pull section 5, and in this embodiment, the pull section 5 is a hexagonal cylindrical body. And the tightening gun 16 with an inner hexagon is sleeved on the wrenching section 5 to realize rotation. A ratchet wheel 9 is arranged at the upper part of the pulling section 5 or at the lower part of the locking shaft screw rod 6, the ratchet direction of the ratchet wheel 9 is opposite to the screwing direction, and a locking claw 10 which can be clamped on the ratchet wheel 9 is rotatably arranged on the battery pack bracket 2 through a rotating shaft 11; when the lock pawl 10 is caught on the ratchet teeth of the ratchet 9, the ratchet 9 is reversely locked.

The device also comprises a toggle mechanism, when the tightening gun 16 is completely sleeved in the pulling section 5, the tightening gun 16 triggers the toggle mechanism, and the locking claw 10 can be toggled by the toggle mechanism to be separated from the ratchet wheel 9.

As shown in fig. 1, the pulling section 5 and the pulling mechanism are sleeved with the lock shell 4, and the lower section of the pulling section 5 extends out of the bottom of the lock shell 4. The extension is used for the screwing operation of the gun 16.

As shown in fig. 3-4, the toggle mechanism comprises a guide tube 13 and a pushing pin 14 capable of sliding vertically in the guide tube 13, a toggle hole 12 is formed in one end, far away from the rotating shaft 11, of the locking claw 10, the guide tube 13 penetrates through the toggle hole 12 and is fixed on the battery pack bracket 2, a slot is formed in one side of the guide tube 13, and a wedge-shaped pushing piece 15 penetrating through the slot is arranged on the pushing pin 14. The side of the poking hole 12, which is opposite to the ratchet wheel 9, is tightly attached to the guide tube 13 in a normal state, a certain gap is formed between the side, which is close to the ratchet wheel 9, and the guide tube 13, and the gap width is larger than the upper end width of the wedge-shaped push piece 15 and smaller than the lower end width. The pushing piece 15 moves upwards to squeeze the poking hole 12, and enables the locking claw 10 to rotate in a direction of separating from the ratchet wheel 9, and the lower section of the pushing pin 14 extends out of the bottom of the lock shell 4. When the tightening gun 16 is sleeved into the pulling section 5, the pushing pin 14 is pressed by the top edge of the tightening gun 16, and the pushing piece 15 is caused to toggle the toggle hole 12.

In order to enable the pushing pin 14 to automatically reset when the pushing force is lost, the top end of the pushing pin 14 is provided with a spring propped against the battery pack bracket 2. The spring is compressed when the push pin 14 is lifted.

In order to enable the locking claw 10 to be in a clamping mode of the ratchet wheel 9 after the pushing piece 15 is separated from the poking hole 12, a torsion spring is arranged on the rotating shaft 11 of the locking claw 10. The two ends of the torsion spring are respectively connected with the locking claw 10 and the rotating shaft 11, and the torsion spring is an existing commercial product.

As shown in fig. 5, the working principle of the unlocking process is that: the gun 16 is sleeved on the pulling section 5 through the RGV jacking mechanism and is jacked to be in contact with the bottom of the lock shell 4, in the process, the gun 16 is jacked to be flush with the bottom of the lock shell 4, the pushing piece 15 moves upwards along with the pushing piece 14, the lock hole 12 is under the hypotenuse pressure of the top of the pushing piece 15, the lock claw 10 is driven to rotate in the direction away from the ratchet 9 by taking the rotating shaft 11 as the center, so that the lock claw 10 is separated from the ratchet 9, the gun 16 is jacked to rotate anticlockwise to rotate the lock shaft screw 6 away from the nut seat 3, and finally the RGV drives the battery pack and the battery pack support 2 thereof to move downwards, so that the battery unlocking process is completed.

The working principle of the locking process is as follows: the RGV jacking mechanism lifts the battery to move upwards, the battery pack bracket 2 is inserted into the positioning sleeve 7 through the positioning rod 8 to realize the alignment of the lock shaft screw rod 6 and the nut seat 3, then the RGV jacking mechanism jacks the tightening gun 16 to be sleeved on the pulling section 5 and to be lifted to be in contact with the bottom of the lock shell 4, in the process, the tightening gun 16 jacks the pushing pin 14 to be flush with the bottom of the lock shell 4, the pushing piece 15 moves upwards along with the pushing pin 14, the lock hole 12 is under the bevel edge pressure at the top of the pushing piece 15, the locking claw 10 is driven to rotate in the direction away from the ratchet wheel 9 by taking the rotating shaft 11 as the center, so that the locking claw 10 is in a state of being separated from the ratchet wheel 9, then the tightening gun 16 rotates clockwise to rotate the lock shaft screw rod 6 into the nut seat 3, and finally the lock shaft screw rod 6 and the nut seat 3 are completely screwed up to reach the specified torque and the number of screwing turns. Finally, the RGV drives the tightening gun 16 to move downwards, the upper surface of the tightening gun 16 is separated from the pushing pin 14 slowly, the pushing pin 14 moves downwards slowly under the elasticity of the spring, meanwhile, the pushing piece 15 is separated from the shifting hole 12, the locking claw 10 moves circularly towards the ratchet 9 by taking the rotating shaft 11 as the center, and finally the locking claw 10 is clamped into the ratchet 9, so that the locking and anti-loosening actions of the threaded lock are completed, and the battery locking is completed.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a new energy battery package trades electric locking means, includes vehicle-mounted support (1) fixed on the car, fixes battery package support (2) on the battery package, be provided with nut seat (3) on vehicle-mounted support (1), the last rotation of battery package support (2) is connected with lock axle screw rod (6) with nut seat (3) looks adaptation, the hypomere of lock axle screw rod (6) is spanner section (5), its characterized in that: a ratchet wheel (9) is arranged at the upper part of the pulling section (5) or at the lower part of the locking shaft screw (6), and a locking claw (10) which can be clamped on the ratchet wheel (9) is rotatably arranged on the battery pack bracket (2) through a rotating shaft (11); the ratchet wrench also comprises a shifting mechanism, and when the wrench tool is completely sleeved in the wrench section (5), the locking claw (10) can be shifted by the shifting mechanism to be separated from the ratchet wheel (9).

2. The new energy battery pack power conversion locking device according to claim 1, wherein: the pulling section (5) and the toggle mechanism are sleeved with the lock shell (4), and the lower section of the pulling section (5) extends out of the bottom of the lock shell (4).

3. The new energy battery pack power conversion locking device according to claim 2, wherein: the toggle mechanism comprises a guide tube (13) and a pushing pin (14) capable of vertically sliding in the guide tube (13), a toggle hole (12) is formed in one end, far away from a rotating shaft (11), of a locking claw (10), the guide tube (13) penetrates through the toggle hole (12) and is fixed on a battery pack support (2), a slot is formed in one side of the guide tube (13), a wedge-shaped pushing piece (15) penetrating through the slot is arranged on the pushing pin (14), the pushing piece (15) moves upwards to squeeze the toggle hole (12) and enables the locking claw (10) to rotate in the direction of being separated from a ratchet wheel (9), and the lower section of the pushing pin (14) stretches out of the bottom of a lock shell (4).

4. The new energy battery pack power conversion locking device according to claim 3, wherein: the top end of the pushing pin (14) is provided with a spring which is propped against the battery pack bracket (2).

5. The new energy battery pack power conversion locking device according to claim 3, wherein: a torsion spring is arranged on a rotating shaft (11) of the locking claw (10).

6. The new energy battery pack power conversion locking device according to claim 1, wherein: the vehicle-mounted support (1) is provided with a positioning sleeve (7), the battery pack support (2) is vertically provided with a positioning rod (8) capable of jacking the positioning sleeve (7), and when the positioning rod (8) jacks the positioning sleeve (7), the lock shaft screw (6) corresponds to the nut seat (3) up and down.