Novel battery locking mechanism

Abstract

A novel battery locking mechanism comprises a driving motor, a spline shaft, a rotary mounting block, a reset spring, a limiting stepped shaft sleeve, a connecting shaft sleeve and a special bolt, the special bolt comprises a base and a screw vertically connected to the middle of the upper surface of the base, and the limiting stepped shaft sleeve comprises a connecting flange I and a limiting sleeve; a driving shaft of the driving motor is fixedly connected with the spline shaft, the bottom end of the rotary mounting block sleeves the surface of the end, away from the driving motor, of the spline shaft, the top end of the rotary mounting block is connected with the special bolt bottom end base, and the bottom end of the connecting shaft sleeve is connected with the driving motor and sleeves the spline shaft and the rotary mounting block. The reset spring is arranged on the inner side of the connecting shaft sleeve and sleeved on the outer surfaces of the spline shaft and the rotary mounting block, the limiting stepped shaft sleeve is connected with the upper end of the connecting shaft sleeve, a base of the special bolt is positioned in a limiting sleeve of the limiting stepped shaft sleeve, and a screw of the special bolt penetrates out of the limiting sleeve of the limiting stepped shaft sleeve and extends outwards. The device is simple, practical, low in cost, stable and reliable.

Description

Technical Field

[0001] The utility model relates to a battery installation tool, in particular to a novel battery locking mechanism. Background Art

[0002] With the rapid development of new energy vehicles, their market share is getting higher and higher, and users have higher and higher requirements for the endurance of the power batteries of new energy vehicles. How to efficiently replenish energy for new energy vehicles has become a common concern. At present, energy replenishment mainly includes charging mode and battery replacement mode. The charging mode is to directly charge the battery before the battery is exhausted, and the battery replacement mode is to replace the battery before the battery is exhausted. Compared with the charging mode, the battery replacement mode adopts a mode of separating the vehicle and the battery. The battery replacement mode can quickly replenish energy for new energy vehicles, avoiding users from waiting for charging for a long time. In addition, the battery in the battery replacement mode is charged in the battery replacement station, which is a professional charging place and maintained by professionals, which is more conducive to ensuring battery life and charging safety, so it is widely used.

[0003] For the battery swap mode, it is particularly important to quickly separate and connect the battery and the vehicle body. The current battery locking mechanism used to separate and connect the battery and the vehicle body has problems such as complex design and high manufacturing cost. Therefore, the inventor proposed a new type of battery locking mechanism to solve the above problems. Summary of the invention

[0004] The purpose of the utility model is to provide a new battery locking mechanism for the defects of the above-mentioned prior art, which is simple, practical, low-cost, stable and reliable.

[0005] The technical solution adopted by the utility model to achieve the above-mentioned purpose is: a novel battery locking mechanism, including a driving motor, a spline shaft, a rotating mounting block, a reset spring, a limit step sleeve, a connecting sleeve, and a special bolt. The special bolt includes a base and a screw rod vertically connected to the middle part of the upper surface of the base. The limit step sleeve includes a connecting flange I and a limit sleeve connected to the upper surface of the middle part of the connecting flange I. The driving shaft of the driving motor is fixedly connected to the spline shaft, the bottom end of the rotating mounting block is sleeved on the surface of the spline shaft away from one end of the driving motor, the top of the rotating mounting block is connected to the bottom end seat of the special bolt, the bottom end of the connecting sleeve is connected to the upper end face of the driving motor and is sleeved on the outside of the spline shaft and the rotating mounting block, the reset spring is arranged on the inner side of the connecting sleeve and is sleeved on the outer surface of the spline shaft and the rotating mounting block, the connecting flange I of the limit step sleeve is connected to the upper end of the connecting sleeve, the base of the special bolt is positioned in the limit sleeve of the limit step sleeve, and the screw rod of the special bolt passes through the limit sleeve of the limit step sleeve and extends outward.

[0006] A further technical solution of the utility model is: the bottom end of the base of the special bolt is also connected to a holding block I, the rotating mounting block includes a mounting sleeve and a limiting truncated table connected to the upper end of the mounting sleeve, the upper surface of the limiting truncated table is protrudingly provided with a holding block II that can be mutually engaged with the holding block I at the bottom end of the special bolt, the upper end of the reset spring is abutted against the bottom surface of the limiting truncated table, and the upper surface of the limiting truncated table matches the bottom surface of the connecting flange I of the limiting stepped sleeve.

[0007] A further technical solution of the utility model is: the outer edge of the bottom end of the connecting sleeve is connected to a connecting flange II, the outer edge of the top end of the connecting sleeve is connected to a connecting flange III, connecting flange II and connecting flange III are respectively provided with connecting holes, connecting bolts pass through the connecting holes on the connecting flange II at the bottom end of the connecting sleeve to fix the connecting sleeve to the side end face where the driving shaft of the driving motor is located, and connecting flange I of the limiting step sleeve is provided with a connecting hole, and connecting bolts pass through the connecting holes on the connecting flange I and the connecting holes on the connecting flange III to fix the limiting step sleeve to the connecting sleeve.

[0008] A further technical solution of the utility model is that a conical guide portion with a diameter smaller than that of the screw is provided at the end of the screw rod of the special bolt.

[0009] The utility model discloses a novel battery locking mechanism with the following beneficial effects: since the utility model only includes a driving motor, a spline shaft, a rotating mounting block, a reset spring, a limiting stepped shaft sleeve, a connecting shaft sleeve and a special bolt, the overall structure is simple and the manufacturing cost is low; the spline shaft is stably connected to the driving shaft; the rotating mounting block and the special bolt are stably connected by snapping; a reset spring is sleeved on the outer surface of the spline shaft and the rotating mounting block; the special bolt on the rotating mounting block is driven to move up or down by the forward and reverse rotation of the driving motor driving shaft, thereby realizing rapid unlocking and installation of the battery; after moving down, the rotating mounting block and the special bolt can be automatically reset under the restoring force of the reset spring, which is stable and reliable.

[0010] A novel battery locking mechanism of the utility model is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of a novel battery locking mechanism of the utility model;

[0012] Figure 2 yes Figure 1 A top view of a novel battery locking mechanism is shown;

[0013] Figure 3 yes Figure 1 An exploded view of a novel battery locking mechanism is shown;

[0014] Figure 4 yes Figure 2A cross-sectional view of a novel battery locking mechanism along the AA direction is shown;

[0015] Description of the accompanying figures: 1-driving motor, 2-connecting sleeve, 3-limiting stepped sleeve, 4-special bolt, 5-rotating mounting block, 6-driving shaft, 7-spline shaft, 8-reset spring, 9-mounting sleeve, 10-holding block II, 11-limiting round table, 12-connecting flange II, 13-connecting flange III, 14-connecting flange I, 15-limiting sleeve, 16-holding block I, 17-base, 18-screw, 19-guide part. DETAILED DESCRIPTION

[0016] like Figures 1 to 4 As shown, the utility model is a novel battery locking mechanism, which includes a driving motor 1, a spline shaft 7, a rotating mounting block 5, a reset spring 8, a limiting stepped sleeve 3, a connecting sleeve 2, and a special bolt 4.

[0017] like Figures 1 to 3 As shown, the special bolt 4 includes a base 17 and a screw 18 vertically connected to the middle of the upper surface of the base 17. The base 17 is cylindrical, and the surface of the screw 18 is provided with threads. A clamping block Ⅰ16 is also connected to the bottom end of the base 17 of the special bolt 4, and a conical guide portion 19 with a smaller diameter than the screw 18 is provided at the upper end of the screw 18 of the special bolt 4. The screw 18 of the special bolt 4 with the guide portion 19 can quickly enter the threaded hole of the battery connector.

[0018] like Figures 1 to 3 As shown, the limiting stepped sleeve 3 includes a connecting flange Ⅰ14 and a limiting sleeve 15 connected to the upper surface of the middle part of the connecting flange Ⅰ14, and a connecting hole is provided on the connecting flange Ⅰ14 of the limiting stepped sleeve 3. The rotating mounting block 5 includes a mounting sleeve 9 and a limiting truncated cone 11 connected to the upper end of the mounting sleeve 9, and a clamping block Ⅱ10 protruding from the upper surface of the limiting truncated cone 11 can be mutually engaged with the clamping block Ⅰ16 at the bottom end of the special bolt 4. The mounting sleeve 9 has a spline sleeve inside, which can be tightly matched with the spline shaft 7 connected to the mounting sleeve 9.

[0019] like Figures 1 to 4As shown, the driving shaft 6 of the driving motor 1 is fixedly connected with the spline shaft 7, wherein the inner surface of the spline shaft 7 and the driving shaft 6 are provided with keyways corresponding to each other, and the spline shaft 7 and the driving shaft 6 are connected by a key. The outer surface of the spline shaft 7 is provided with an external spline that is mutually docked with the internal spline sleeve of the mounting sleeve 9 of the rotating mounting block 5, and the mounting sleeve 9 of the rotating mounting block 5 is tightly matched when connected with the spline shaft 7. The mounting sleeve 9 at the bottom end of the rotating mounting block 5 is sleeved on the surface of the spline shaft 7 away from the driving motor 1, the top end of the rotating mounting block 5 is connected to the bottom end seat of the special bolt 4, and the clamping block II 10 at the upper end of the rotating mounting block 5 is mutually engaged with the clamping block I 16 at the bottom end of the special bolt 4. The bottom end of the connecting sleeve 2 is connected to the upper end surface of the driving motor 1 and is sleeved on the outside of the spline shaft 7 and the rotating mounting block 5. The reset spring 8 is arranged on the inner side of the connecting sleeve 2 and sleeved on the outer surface of the spline shaft 7 and the rotating mounting block 5. The connecting flange Ⅰ14 of the limiting step sleeve 3 is connected to the upper end of the connecting sleeve 2. The base 17 of the special bolt 4 is positioned in the limiting sleeve 15 of the limiting step sleeve 3. The screw 18 of the special bolt 4 passes through the limiting sleeve 15 of the limiting step sleeve 3 and extends outward. In this embodiment, the outer edge of the bottom end of the connecting sleeve 2 is connected with the connecting flange Ⅱ12, and the outer edge of the top end of the connecting sleeve 2 is connected with the connecting flange Ⅲ13. The connecting flange Ⅱ12 and the connecting flange Ⅲ13 are respectively provided with connecting holes. The connecting bolt (not shown in the figure) passes through the connecting hole on the connecting flange Ⅱ12 at the bottom end of the connecting sleeve 2 to fix the connecting sleeve 2 to the side end surface where the driving shaft 6 of the driving motor 1 is located. The connecting bolts (not shown in the figure) pass through the connecting holes on the connecting flange Ⅰ14 of the limiting step sleeve 3 and the connecting holes on the connecting flange Ⅲ13 of the connecting sleeve 2 to fix the limiting step sleeve 3 on the connecting sleeve 2. After the assembly is completed, the upper end of the reset spring 8 abuts against the bottom surface of the limiting truncated cone 11, and the upper surface of the limiting truncated cone 11 matches the bottom surface of the connecting flange Ⅰ14 of the limiting step sleeve 3. The rebound or compression of the reset spring 8 can make the rotating mounting block 5 move up and down relative to the connecting sleeve 2.

[0020] During operation, the drive motor 1 rotates forward and reversely, and the drive shaft 6 rotates forward and reversely to drive the special bolt 4 in the rotating installation block 5 to move up or down, thereby realizing the rapid unlocking and installation of the battery. During the unlocking process, the surface thread of the screw rod 18 of the original special bolt 4 is matched with the threaded hole of the battery unlocking piece (not shown in the figure), and the drive motor 1 controls the drive shaft 6 to reverse and twist out the battery unlocking piece, and the battery is unlocked at this time; during the installation process, the battery unlocking piece connected to the screw rod 18 of the special bolt 4 is inserted into the unlocking piece installation position of the battery, and the drive shaft 6 is controlled to rotate forward so that the battery unlocking piece is firmly installed in the unlocking piece installation position, and the battery is locked.

[0021] The above embodiments are only preferred embodiments of the present invention. The structure of the present invention is not limited to the forms listed in the above embodiments. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of battery locking mechanism, characterized in that: The invention comprises a driving motor (1), a spline shaft (7), a rotating mounting block (5), a reset spring (8), a limit step shaft sleeve (3), a connecting shaft sleeve (2), and a special bolt (4). The special bolt (4) comprises a base (17) and a screw rod (18) vertically connected to the middle of the upper surface of the base (17). The limit step shaft sleeve (3) comprises a connecting flange I (14) and a limit sleeve (15) connected to the upper surface of the middle of the connecting flange I (14). The driving shaft (6) of the driving motor (1) is fixedly connected to the spline shaft (7). The bottom end of the rotating mounting block (5) is sleeved on the surface of the spline shaft (7) away from the driving motor (1). The top of the block (5) is connected to the bottom seat of the special bolt (4), the bottom end of the connecting sleeve (2) is connected to the upper end surface of the driving motor (1) and is sleeved on the outside of the spline shaft (7) and the rotating mounting block (5), the return spring (8) is arranged on the inside of the connecting sleeve (2) and is sleeved on the outer surface of the spline shaft (7) and the rotating mounting block (5), the connecting flange I (14) of the limiting step sleeve (3) is connected to the upper end of the connecting sleeve (2), the base (17) of the special bolt (4) is positioned in the limiting sleeve (15) of the limiting step sleeve (3), and the screw (18) of the special bolt (4) passes through the limiting sleeve (15) of the limiting step sleeve (3) and extends outward.

2. A novel battery locking mechanism as claimed in claim 1, characterized in that: The bottom end of the base (17) of the special bolt (4) is also connected to a holding block I (16), and the rotating mounting block (5) comprises a mounting sleeve (9) and a limiting truncated table (11) connected to the upper end of the mounting sleeve (9), and a holding block II (10) which can be mutually engaged with the holding block I (16) at the bottom end of the special bolt (4) is protruded from the upper surface of the limiting truncated table (11), and the upper end of the return spring (8) abuts against the bottom surface of the limiting truncated table (11), and the upper surface of the limiting truncated table (11) matches the bottom surface of the connecting flange I (14) of the limiting stepped shaft sleeve (3).

3. A novel battery locking mechanism as claimed in claim 1, characterized in that: The outer edge of the bottom end of the connecting sleeve (2) is connected to a connecting flange II (12), and the outer edge of the top end of the connecting sleeve (2) is connected to a connecting flange III (13). The connecting flange II (12) and the connecting flange III (13) are respectively provided with connecting holes. Connecting bolts pass through the connecting holes on the connecting flange II (12) at the bottom end of the connecting sleeve (2) to fix the connecting sleeve (2) to the side end face where the drive shaft (6) of the drive motor (1) is located. The connecting flange I (14) of the limiting step sleeve (3) is provided with connecting holes. The connecting bolts pass through the connecting holes on the connecting flange I (14) and the connecting holes on the connecting flange III (13) to fix the limiting step sleeve (3) to the connecting sleeve (2).

4. A novel battery locking mechanism as claimed in claim 1, characterized in that: The end of the screw rod (18) of the special bolt (4) is provided with a tapered guide portion (19) having a diameter smaller than that of the screw rod (18).

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