CN212422795U - Locking mechanism assembly and electric automobile - Google Patents

Abstract

The utility model discloses a locking mechanism assembly and electric automobile, locking mechanism assembly include adapting unit, this body coupling of adapting unit and a plurality of locking mechanism: secondary locking mechanism includes: the sliding assembly is fixedly connected with the connecting part; when the plurality of locking mechanism bodies are in a locking state, the limiting assembly is in a secondary locking state for locking the sliding assembly; when the limiting assembly is in an unlocking state separated from the sliding assembly, the plurality of locking mechanism bodies are driven to enter the unlocking state through the connecting component under the condition that the sliding assembly is pushed to slide along the first direction. The utility model discloses a scheme simple structure, simple operation, reliability are high, can be convenient like the installation and the dismantlement process of treating the mounting of power battery package etc. have improved the change efficiency of treating the mounting.

Description

Locking mechanism assembly and electric automobile

Technical Field

The utility model relates to a mechanical structure technical field especially relates to a locking mechanism assembly and electric automobile.

Background

In the two parts fixedly connected, if one part is in failure or cannot be used normally, the damaged or abnormally used part needs to be replaced. In the prior art, a power battery pack and a vehicle body of an electric vehicle are generally fixedly connected, when the electric quantity of the power battery is exhausted, the electric vehicle needs to be charged immediately to ensure normal running of the electric vehicle, although charging facilities are continuously improved at present, so that the charging is more convenient, under the condition that the time of a user is urgent, in order to avoid overlong charging time, a method for replacing the power battery of the electric vehicle is mainly selected to solve the problems, and when the electric quantity of the power battery is insufficient, a fully charged battery pack can be directly replaced at a charging station.

At present, a power battery of an electric automobile is generally welded or bolted with an automobile body, and the problems of complex installation and disassembly processes and long time consumption of a power battery pack exist, so that a locking mechanism for fixing the power battery pack on the automobile body is urgently needed to be designed so as to realize quick replacement of the battery pack.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a locking mechanism assembly and electric automobile has solved the installation of the power battery package that exists among the prior art and has dismantled the process complicacy, longer problem consuming time.

According to the utility model discloses an aspect provides a locking mechanism assembly, include:

a connecting member connected to the plurality of locking mechanism bodies:

secondary locking mechanism includes: the sliding assembly is fixedly connected with the connecting part;

when the plurality of locking mechanism bodies are in a locking state, the limiting assembly is in a secondary locking state for locking the sliding assembly; when the limiting assembly is in an unlocking state separated from the sliding assembly, the plurality of locking mechanism bodies are driven to enter the unlocking state through the connecting component under the condition that the sliding assembly is pushed to slide along the first direction.

Optionally, the sliding assembly includes: a slide rail structure and an unlocking shifting block;

the unlocking shifting block is arranged on the sliding rail structure in a sliding mode and is fixedly connected with the connecting part;

when the secondary locking state is achieved, the limiting assembly is abutted to the unlocking shifting block to prevent the unlocking shifting block from sliding and unlocking along the sliding rail structure.

Optionally, the sliding assembly further includes:

the magnetic block is arranged on the unlocking shifting block;

the sensor is arranged at a position corresponding to the unlocking shifting block provided with the magnetic block when the unlocking shifting block is in the secondary locking state; and when the secondary locking state is realized, the sensor outputs an electric signal.

Optionally, the limiting assembly comprises a reset member;

in the secondary locking state, the limiting assembly pivots to a position abutting against the sliding assembly under the action of the resetting piece.

Optionally, the connecting component includes a plurality of flexible shafts;

two adjacent locking mechanism bodies are connected through the flexible shaft.

Optionally, the flexible shaft is sleeved with a plurality of linear bearings;

and the linear bearings define the motion trail of the flexible shaft.

Optionally, the locking mechanism body includes: the pawl and the ratchet wheel with notches in the outer edge;

the ratchet wheel is rotationally connected with a ratchet wheel shaft, and the pawl is rotationally connected with a pawl shaft;

when the ratchet wheel rotates around the ratchet wheel shaft to enable the opening to be in a locking state, the pawl rotates around the pawl shaft to be connected with the ratchet wheel in a clamping mode, and the ratchet wheel is prevented from rotating and unlocking;

a plurality of the pawls are connected by the connecting member;

under the condition that the sliding assembly is pushed to slide along the first direction, each pawl is driven to rotate to be separated from the ratchet wheel through the connecting component, and the ratchet wheel is rotated to enable the opening to be in an unlocking state.

Optionally, the locking mechanism body further includes:

and the pawl resetting structure is used for enabling the ratchet wheel to rotate along the first time hand direction to enable the opening to be in a locking state, and enabling the pawl to rotate to a position where the ratchet wheel is clamped.

Optionally, the locking mechanism body further includes:

and the ratchet wheel resetting structure is used for enabling the ratchet wheel to rotate to a position when the opening is in an unlocking state through the ratchet wheel resetting structure when the pawl rotates to be separated from the ratchet wheel.

Optionally, an unlocking operating lever extending out of the locking mechanism is arranged on the pawl;

the unlocking operating rod is fixedly connected with the connecting component.

Optionally, the locking mechanism body further includes: a microswitch;

when in the locking state, the ratchet wheel contacts the microswitch, and the microswitch is closed;

and when the unlocking state is realized, the ratchet wheel is separated from the microswitch, and the microswitch is disconnected.

Optionally, the locking mechanism body further includes: a detection device for detecting the position of the ratchet wheel;

when the ratchet wheel is in a locking state, the detection device outputs a first electric signal; when the ratchet wheel is in the unlocking state, the detection device outputs a second electric signal.

Optionally, the locking mechanism assembly further includes: a self-restoring spring;

the self-restoring spring is in a state of pulling the connection member in a direction opposite to the first direction.

According to still another aspect of the present invention, there is provided an electric vehicle, including the above-described locking mechanism assembly;

the electric automobile is detachably connected with the quick-change power battery pack through the locking mechanism assembly.

The utility model discloses a beneficial effect of embodiment is:

in the above scheme, the locking mechanism assembly includes a connection component, the connection component is connected to the plurality of locking mechanism bodies: secondary locking mechanism includes: the sliding assembly is fixedly connected with the connecting part; when the plurality of locking mechanism bodies are in a locking state, the limiting assembly is in a secondary locking state for locking the sliding assembly; when the limiting assembly is in an unlocking state separated from the sliding assembly, the plurality of locking mechanism bodies are driven to enter the unlocking state through the connecting component under the condition that the sliding assembly is pushed to slide along the first direction. This scheme simple structure, simple operation, can be convenient like the installation and the dismantlement process of treating the mounting of power battery package etc. can improve the change efficiency of quick change power battery package.

Drawings

Fig. 1 shows one of the schematic diagrams of the locking mechanism assembly of the embodiment of the present invention connected to the quick-change bracket and the quick-change power battery pack;

fig. 2 shows a second schematic diagram of the locking mechanism assembly of the embodiment of the present invention connected to the quick-change bracket and the quick-change power battery pack;

fig. 3 is a schematic view illustrating a locking mechanism assembly and a quick-change bracket according to an embodiment of the present invention;

fig. 3a is an enlarged schematic view of the left half of fig. 3 according to an embodiment of the present invention;

fig. 3b is an enlarged schematic view of the right half structure of fig. 3 according to the embodiment of the present invention;

fig. 4 is a second schematic view illustrating the connection between the locking mechanism assembly and the quick-change bracket according to the embodiment of the present invention;

fig. 4a is an enlarged schematic view of the left half of the structure of fig. 4 according to an embodiment of the present invention;

fig. 4b is an enlarged schematic view of the right half structure of fig. 4 according to the embodiment of the present invention;

fig. 5 is a schematic structural view of a locking mechanism assembly according to an embodiment of the present invention;

fig. 5a is an enlarged schematic view of the left half of fig. 5 according to an embodiment of the present invention;

fig. 5b is an enlarged schematic view of the right half structure of fig. 5 according to the embodiment of the present invention;

fig. 6 is a second schematic structural view of the locking mechanism assembly according to the embodiment of the present invention;

fig. 6a is an enlarged schematic view of the left half of fig. 6 according to an embodiment of the present invention;

fig. 6b is an enlarged schematic view of the right half structure of fig. 6 according to the embodiment of the present invention;

fig. 7 is an enlarged schematic view of the structure at E1 in fig. 5 to 5b according to the embodiment of the present invention;

fig. 8 is an enlarged schematic view of the structure at D1 in fig. 5 and 5a according to the embodiment of the present invention;

fig. 9 shows an exploded view of the structure at D1 in fig. 5 and 5a according to an embodiment of the present invention;

fig. 10 is an enlarged schematic view of the structure at a2 in fig. 2 to 4b according to the embodiment of the present invention;

fig. 11 is an enlarged schematic view of the structure at B in fig. 2 to 3a, 4 and 4a according to the embodiment of the present invention;

fig. 12 is a second enlarged schematic view of the structure of fig. 2 to 3a, 4 and B in fig. 4a according to the embodiment of the present invention;

fig. 13 is an enlarged schematic view of the structure of fig. 3 and C in fig. 3a according to the embodiment of the present invention;

fig. 14 is an enlarged schematic view of the structure at a1 point in fig. 2 to 3a, 4 and 4a according to the embodiment of the present invention;

fig. 15 shows an exploded view of the structure at G1 in fig. 5 and 5a according to an embodiment of the present invention;

fig. 16 is a schematic view showing an unlocked state of the locking mechanism body according to the embodiment of the present invention;

fig. 17 is a schematic view showing a locked state of the locking mechanism body according to the embodiment of the present invention;

fig. 18 shows a first exploded view of the locking mechanism body of the embodiment of the present invention;

fig. 19 shows a second exploded view of the locking mechanism body of the embodiment of the present invention;

fig. 20 is a schematic view showing a locking state of the locking mechanism body according to the embodiment of the present invention;

fig. 21 is a second schematic view showing a locked state of the locking mechanism body according to the embodiment of the present invention;

fig. 22 is a schematic structural diagram of a quick-change power battery pack according to an embodiment of the present invention;

fig. 23 is a partially enlarged schematic view of a portion F in fig. 22 according to an embodiment of the present invention;

description of reference numerals:

1-quickly changing a power battery pack;

11-a shackle;

2-quick change of the bracket;

21-a first plate body;

22-flanging;

221-bolt;

3-locking mechanism body;

31-a lower cover plate;

311-a ratchet shaft;

312-pawl shaft;

313-pawl limit block;

314-a notch;

315-first bolt mounting hole;

316-a first stopper;

32-ratchet wheel;

321-a gap;

33-pawl;

331-an unlocking lever;

34-ratchet return spring;

35-pawl return spring;

36-upper cover plate;

361-strip-shaped through holes;

362-arcuate opening;

37-a damper block;

38-a microswitch;

4-a flexible shaft;

42-supporting sheet metal blocks;

43-connecting sheet metal pieces;

5-a lock body;

51-a first mounting hole;

52-a reset member;

53-a limiting column;

61-unlocking shifting block;

611-a protruding shaft;

62-bar shaped slide block;

63-linear slide block;

64-a rubber block;

65-a sensor;

7-self-restoring spring.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

As shown in fig. 1 to 21, an embodiment of the present invention provides a locking mechanism assembly, including:

a connecting member connected to the plurality of locking mechanism bodies 3:

secondary locking mechanism includes: the sliding assembly is fixedly connected with the connecting part; when the plurality of locking mechanism bodies 3 are in the locking state, the limiting assembly is in a secondary locking state for locking the sliding assembly; when the limiting assembly is in an unlocking state separated from the sliding assembly, the plurality of locking mechanism bodies 3 are driven to enter the unlocking state through the connecting component under the condition that the sliding assembly is pushed to slide along the first direction.

In this embodiment, slide assembly through promoting among the secondary locking mechanism slides along first direction, drives adapting unit motion, further drives a plurality of locking mechanism bodies 3 simultaneously through adapting unit's motion and realizes the linkage unblock, improves unlocking efficiency. The limiting assembly in the secondary locking mechanism is abutted against the sliding assembly in the locking position, secondary locking of the system is achieved, reliability of a locking state is improved, and risk of accidental unlocking is avoided.

In this embodiment, when two parts which need to be fixedly connected are connected, the locking mechanism assembly is connected with one of the fixed parts, and further, the other part to be fixed is locked and fixed on the plurality of locking mechanism bodies 3 through the locking mechanism assembly, and the detachable connection of the two fixed parts is realized by utilizing the locking and unlocking states of the locking mechanism assembly, so that the installation and detachment processes of the two fixed parts can be facilitated.

The application of the locking mechanism assembly to fix the quick-change power battery pack will be described with reference to fig. 1 to 4 b.

As shown in fig. 1, it is a schematic diagram illustrating the connection state of the locking mechanism assembly with the quick-change bracket 2 and the quick-change power battery pack 1; as shown in fig. 2, a side view of the locking mechanism assembly is schematically shown in connection with the quick-change bracket 2 and the quick-change power battery pack 1. As shown in fig. 3 to 3b, the structure of the locking mechanism assembly is schematically shown in the connection state with the quick-change bracket 2; as shown in fig. 4 to 4b, a side view of the locking mechanism assembly is shown in the state of connection with the quick-change holder 2.

It should be noted that, when the to-be-fixed member to be fixed by using the above-mentioned locking mechanism assembly is the quick-change power battery pack 1, the locking mechanism assembly may be mounted on the vehicle body, or may be mounted on the quick-change bracket 2 as shown in fig. 3 to 3 b. When the locking mechanism assembly is connected with the quick-change bracket 2, the quick-change bracket 2 is further connected with the vehicle body, and the locking mechanism assembly is connected to the quick-change bracket 2. Finally, the vehicle body is detachably connected with the quick-change power battery pack 1 through the locking mechanism assembly, so that the installation and the disassembly processes of the quick-change power battery pack 1 can be conveniently and quickly carried out, and the replacement efficiency of the quick-change power battery pack 1 is effectively improved.

In an alternative embodiment, the slide assembly comprises: a slide rail structure and an unlocking toggle block 61; the unlocking shifting block 61 is arranged on the sliding rail structure in a sliding manner and is fixedly connected with the connecting part; when the secondary locking state is achieved, the limiting assembly is abutted to the unlocking shifting block 61, so that the unlocking shifting block 61 is prevented from sliding and unlocking along the sliding rail structure.

In this embodiment, through the slide rail structure, realize that unblock shifting block 11 is the rectilinear slip along the slide rail structure, when improving unblock shifting block 11 motion reliability, avoid unblock shifting block 11 to move along other movement tracks, lead to the locking and the unusual problem of unblock process to take place, improved the reliability of unblock and locking process.

Specifically, an unlocking shifting block 61 for connecting with an unlocking device is fixedly connected to the connecting part; the slide rail structure is arranged at a position corresponding to the unlocking shifting block 61; the unlocking shifting block 61 is connected with the sliding rail structure in a sliding manner; under the condition that the unlocking shifting block 61 slides on the slide rail structure along a first direction, the connecting part moves along the first direction, so that the locking mechanism bodies 3 are driven to be simultaneously unlocked in a linkage manner;

when in the locking state, the limiting assembly is in a secondary locking state abutting against the unlocking shifting block 61, and the connecting part is prevented from moving along the first direction;

in the unlocked state, the restricting member is separated from the unlocking paddle 61.

In this embodiment, the slide rail structure may be a slide rail structure with a groove, and the unlocking shifting block 61 is arranged in the groove of the rail to slide; the slide rail structure can also be a bar-shaped slide block 62, and the bar-shaped slide block 62 is arranged through the unlocking shifting block 61.

Further, the sliding assembly further comprises: a linear slider 63; the unlocking shifting block 61 is fixedly connected with the linear sliding block 63; the linear sliding block 63 is connected with the sliding rail structure in a sliding manner.

In this embodiment, the unlocking shifting block 61 is fixedly connected with the linear sliding block 63, and then the linear sliding block 63 is slidably connected with the sliding rail structure, so that the accuracy of the motion track of the unlocking shifting block 61 can be further improved.

Further, the slide rail structure can be a slide rail structure with a groove, and the unlocking shifting block 61 is arranged in the groove of the rail and slides; specifically, the slide rail structure may also include: a bar-shaped slider 62; the linear sliding block 63 is provided with a slide way, and the strip-shaped sliding block 62 is arranged in the slide way in a penetrating way.

In this embodiment, the unlocking shifting block 61 is fixedly connected with the linear sliding block 63, and then the linear sliding block 63 is slidably connected with the sliding strip-shaped sliding block 62, so that the accuracy of the motion track of the unlocking shifting block 61 can be further improved.

Still further, the slide module further includes:

and the rubber block 64 is arranged at one end of the slide rail structure far away from the limiting assembly 14.

When in the secondary locking state, the damping block 64 abuts against one end, away from the limiting assembly, of the unlocking shifting block 61.

In this embodiment, the rubber block 64 provides buffering and limiting functions for the unlocking shifting block 61, and limits the position of the unlocking shifting block 61 in the unlocking state; specifically, the rubber material avoids collision damage to the unlocking shifting block 61, and prolongs the service life of the unlocking shifting block 61.

Specifically, the sliding assembly further includes:

the magnetic block is arranged on the unlocking shifting block 61;

the sensor 65 is arranged at a position corresponding to the unlocking shifting block 61 provided with a magnetic block when the unlocking shifting block is in the secondary locking state;

wherein, in the secondary lock state, the sensor 65 outputs an electric signal.

In this embodiment, the sensor 65 is electrically connected to the external controller through a wire harness and a plug 13, and the sensor 65 may be powered by an electric vehicle. Wherein, if the utility model discloses in the embodiment when including two and more than two sensors 65, a plurality of sensors 65 establish ties after with outside controller electricity is connected, and is a plurality of when the signal of telecommunication of sensor 65 output is the signal of telecommunication that the sign has secondary locking put in place, confirm that the secondary locking puts in place. Through the scheme, the secondary locking state can be effectively detected, and the reliability of the locking state is ensured.

Further, the restricting assembly includes: a reset member 52; in the secondary locking state, the limiting assembly pivots to a position abutting against the sliding assembly under the action of the resetting piece.

In an alternative embodiment, the limiting assembly further comprises a lock body 5 and a rotating shaft; the lock body 5 with the pivot is rotated and is connected, lock body 5 when rotating, have with the locking position that sliding component supported and with the unblock position of sliding component separation.

Through the piece that resets, lock body 5 rotates around the pivot to leaning on with the sliding component.

In this embodiment, the reset member 52 includes a spring, and the lock body 5 in the natural state is in the locked state under the pulling force of the reset member 52. When the unlocking is needed, the unlocking device is used for jacking the lock body 5 to rotate around the rotating shaft to be separated from the protruding shaft 611, and the unlocking is completed.

Specifically, the restricting member further includes: a stopper post 53; in the primary locking position, the limit post 53 abuts against one side of the lock body 5.

Specifically, in the secondary lock state, the lock body 5 rotates around a rotation shaft to a position abutting against the limit post 53 under the pulling of the reset member 52.

Preferably, the lock body 5 is of a concave structure, and one end of the concave structure penetrates through the rotating shaft and can rotate around the rotating shaft; during the secondary locking state, the other end of the concave structure abuts against the sliding assembly, and the limiting column 53 abuts against the concave part of the concave structure.

As an application, the connection of the locking mechanism assembly to a quick-change holder 2 will be described below with reference to fig. 2 to 15.

Fig. 2 to 3a, 4 and 4a show a schematic view of the mounted state of the slide assembly on the quick-change holder 2 at B; fig. 5 and 5a are front schematic views showing a connection state of the slider assembly and the link member at D1; fig. 6 and 6a are schematic top views of the connection state of the slide module and the connection member at D2.

Specifically, as shown in fig. 8, 9, 11 and 12, the sliding assembly includes:

the unlocking shifting block 61 is used for being connected with an unlocking device and is fixedly connected to the connecting part;

the bar-shaped sliding block 62 is arranged on the quick-change bracket 2 and at a position corresponding to the unlocking shifting block 61;

the two unlocking shifting blocks 61 are in sliding connection with the strip-shaped sliding block 62;

under the condition that the unlocking shifting block 61 is pushed to slide along the strip-shaped sliding block 62, the connecting part moves in the first direction to be unlocked;

when in the locking state, the limiting assembly is in a secondary locking state abutting against the two unlocking shifting blocks 61, and the connecting component is prevented from moving along the first direction;

in the unlocked state, the restricting member is separated from the unlocking paddle 61.

In this embodiment, the bar-shaped sliding block 62 is disposed on the side wall of the quick-change bracket 2, so that in the unlocking and locking processes, the two unlocking shifting blocks 61 drive the connecting part to slide along the side wall of the quick-change bracket 2, and meanwhile, the sliding track of the unlocking shifting blocks 61 is limited. When the motion reliability of the unlocking shifting block 61 is improved, the problem that the locking and unlocking process is abnormal due to the fact that the unlocking shifting block 61 moves along other motion tracks is avoided, and the reliability of the unlocking and locking process is improved.

Preferably, the sliding assembly further comprises:

the rubber block 64 is connected with the side wall of the quick-change bracket 2;

when in the locking state and the secondary locking state, the rubber block 64 abuts against one end, away from the limiting assembly, of the unlocking shifting block 61.

In this embodiment, the rubber block 64 provides buffering and limiting effect for unblock shifting block 61, and the position of unblock shifting block 61 when the unblock state is restricted on the one hand, and on the other hand rubber material has avoided the collision damage to the unblock shifting block, prolongs the life of unblock shifting block 61.

Preferably, the sliding assembly further comprises:

the magnetic block is arranged on the unlocking shifting block 61;

the sensor 65 is installed on the quick-change bracket 2 and at a position corresponding to the unlocking block 61 provided with the magnetic block in the secondary locking state;

wherein, in the secondary lock state, the sensor 65 outputs an electric signal.

Through this scheme, can effectively detect the secondary locking state of treating the mounting, guarantee locking state reliability.

In particular, shown at C in fig. 3 and 3a is a schematic view of the mounted condition of the restraining assembly on the quick-change holder 2; fig. 5 and 5a are front schematic views showing the connection state of the restricting assembly and the sliding assembly at D1; a top view of the connection of the restraining assembly to the slider assembly is shown at D2 in fig. 6 and 6 a.

Specifically, as shown in the enlarged partial views of fig. 8, 9 and 13, the restricting assembly includes a lock body 5;

a first mounting hole 51 is formed in the lock body 5;

a second mounting hole is formed in the quick-change bracket 2;

the first mounting hole 51 and the second mounting hole are penetrated through the rotating shaft, and the lock body 5 is rotatably connected with the inner side wall of the quick-change bracket 2.

In this embodiment, the lock body 5 is mounted on the inner side wall of the quick-change holder 2 as shown in fig. 3; the sliding assembly is installed at the lateral wall as shown in fig. 3 of quick change support 2, and when the secondary locking state, lock body 5 revolves the rotation axis and rotates to the state with unblock shifting block 61 butt, realizes fixed the locking of unblock shifting block 61, avoids unblock shifting block 61 to slide the unblock along first direction.

Specifically, as shown in fig. 13, a protruding shaft 611 is arranged on the unlocking shifting block 61, a through hole for sliding the protruding shaft 611 is arranged on the quick-change bracket 2, the protruding shaft 611 penetrates through the sliding through hole and protrudes to the outer side wall of the quick-change bracket 2, and in the secondary locking state, the lock body 5 rotates around the rotating shaft and then abuts against the protruding shaft 611, so that the lock body 5 is fixedly locked.

Further, in an embodiment, as shown in fig. 13, the limiting assembly further includes: a reset piece 52 and a spacing post 53; a first extending end of the resetting piece 52 is fixedly connected with the lock body 5, and a second extending end of the resetting piece 52 is fixedly connected with the quick-change bracket 2;

in the secondary locking state, the lock body 5 abuts against the limit post 53 under the pulling of the reset piece 52.

In this embodiment, under the pulling force of the reset member 52 and the limiting action of the limiting column 52, the lock body 5 in the natural state is in the secondary locking state as shown in fig. 13, when unlocking is required, the unlocking device is used to jack up the lock body 5 to rotate around the rotating shaft to be separated from the protruding shaft 611, and the unlocking device is used to push the protruding shaft 611 to move towards the lock body 5, so that the unlocking shifting block 61 and the connecting member are driven to move in the first direction to unlock.

The connecting member will be described with reference to fig. 5 to 11.

As shown in fig. 5 to 11, as an implementation manner, the connecting member includes a plurality of flexible shafts 4; the two adjacent locking mechanism bodies 3 are connected through the flexible shaft 4. The simultaneous unlocking of the plurality of locking mechanism bodies 3 is achieved by the connecting member.

Specifically, the locking mechanism body 3 includes: the pawl 33 and the ratchet wheel 32 with a notch 321 on the outer edge; the ratchet wheel 32 is rotationally connected with a ratchet wheel shaft 311, and the pawl 33 is rotationally connected with a pawl shaft 312;

when the ratchet wheel 32 rotates around the ratchet wheel shaft 311 to enable the gap 321 to be in a locked state, the pawl 33 rotates around the pawl shaft 312 to be clamped with the ratchet wheel 32, and the ratchet wheel 32 is prevented from rotating and unlocking;

a plurality of the pawls 33 are connected by the connecting member;

under the condition that the connecting component is pushed to move along the first direction, each pawl 33 is driven to rotate around the corresponding pawl shaft 312 to be separated from the ratchet wheel 32, so that the ratchet wheel 32 rotates around the ratchet wheel shaft 311 to enable the gap 321 to be in an unlocking state.

In this embodiment, when the ratchet wheel 32 in the locking mechanism body 3 rotates around the ratchet wheel shaft 311, the opening direction of the notch 321 is changed, and the notch 321 has a locking position capable of connecting and fixing an object to be fixed and an unlocking position capable of separating and releasing the object to be fixed in the process of rotating along with the ratchet wheel 32; further, when the notch 321 is in the locking position, the ratchet 32 is engaged by a pawl 33 to fix the locking ratchet 32, so that the notch 321 is maintained in the locking position, and the locking mechanism body 3 enters the locking state. When the locking mechanism needs to be unlocked, the connecting component is utilized to simultaneously separate each pawl 33 from the ratchet wheel 32, and the ratchet wheel 32 rotates around the ratchet wheel shaft 311 to enable the notch 321 to be in the unlocking position after losing the limiting effect of the pawl 32, so that the locking mechanism body 3 enters the unlocking state, and linkage unlocking is realized. In this embodiment, when two parts which need to be fixedly connected are connected, the locking mechanism assembly is connected with one of the fixed parts, and further, the other part to be fixed is locked and fixed on the plurality of locking mechanism bodies 3 through the locking mechanism assembly, and the detachable connection of the two fixed parts is realized by utilizing the locking and unlocking states of the locking mechanism assembly, so that the installation and detachment processes of the two fixed parts can be facilitated.

In this embodiment, the flexible shaft 4 connects the pawls 33 of the plurality of locking mechanism bodies 3 arranged at intervals for realizing linked unlocking. The flexible shaft 4 can better adapt to the parts to be fixed and the fixed parts with different enveloping shapes, and different connecting parts do not need to be customized according to the enveloping shapes of the different parts to be fixed. For example, for the irregularly-shaped quick-change power battery pack 1 shown in fig. 1, the flexible shaft 4 may be designed into a locking mechanism assembly shown in fig. 6, and at a portion that needs to be turned, the material of the flexible shaft can better adapt to the enveloping curvature of the quick-change power battery pack, without affecting the reciprocating motion of the connecting part in the unlocking and locking processes.

Further, as shown in fig. 5 to 8 and 10, the flexible shaft 4 is sleeved with a linear bearing 41; a plurality of the linear bearings 41 define the motion track of the flexible shaft 4. This embodiment has effectively improved the reliability of flexible axle 4 motion in-process, is favorable to improving the motion reliability of flexible axle 4 among unblock and the locking process, avoids like the emergence of the unblock that the flexible axle 4 shifted unusually and leads to and locks the unusual condition of process.

When the locking mechanism assembly is connected to the quick-change bracket 2, the linear bearing 41 is connected to the quick-change bracket 2 through the support sheet metal block 42.

In this embodiment, the number of the linear bearings 41 is plural, the flexible shaft 4 is movably disposed through the linear bearings 41, the plural linear bearings 41 limit the moving track of the flexible shaft 4, and the support sheet metal block 42 is further utilized to fix the linear bearings 41 on the quick-change support 2.

In particular, shown at a1 and a2 in fig. 3 to 4b are schematic views of the mounted state of the locking mechanism body 3 on the quick-change holder 2; fig. 5 to 5b are front schematic views showing a connection state of the locking mechanism body 3 and the connection member at E1; fig. 6 to 6b are schematic plan views showing a connection state of the locking mechanism body 3 and the connection member at E2.

Next, the connection relationship between the locking mechanism body 3 and the quick-change holder 2 and the coupling member and the specific structure of the locking mechanism body 3 will be described with reference to fig. 7, 10, and 16 to 21. Note that fig. 10 does not depict the lock portion when corresponding to a partially enlarged view at a in fig. 2, and a state diagram in which the lock mechanism body 3 is connected to the lock portion can be seen in fig. 14, 20, and 21.

In an alternative embodiment, the locking mechanism body 3 further includes: a lock section;

the notch 321 is matched with the locking part;

the ratchet wheel 32 is pushed by the locking part, so that the ratchet wheel 32 is driven to rotate around the ratchet wheel shaft 311 by an angle along a first clock hand direction, and the locking part enters the notch 321;

when the locking part enters the notch 321, the pawl 33 rotates around the pawl shaft 312 to a locking state in which the pawl is clamped with the ratchet wheel 32, and the ratchet wheel 32 is prevented from rotating until the locking part is released from the notch 321;

when the pawl 33 rotates around the pawl shaft 312 to be separated from the ratchet wheel 32, the ratchet wheel 32 rotates around the ratchet wheel shaft 311 to an unlock state in which the lock portion is released from the notch 321.

In this embodiment, the ratchet wheel 32 is rotationally connected to the ratchet shaft 311, and when the ratchet wheel 32 rotates a certain angle relative to the ratchet shaft 311 along the first direction, the locking part can be locked by using the notch 321 on the ratchet wheel, so as to lock and fix the locking part; when the ratchet 32 rotates around the ratchet shaft 311 in the opposite direction of the first clockwise direction by a certain angle, the locking part is released from the opening of the notch 321, so that the locking part is unlocked, and the locking part is detachably connected with the locking mechanism body 3.

In two parts that need fixed connection, be connected one of them fixed part with locking mechanism assembly, the fixed part of another waiting is fixed in the locking of a plurality of locking mechanism bodies 3 that utilize in the locking mechanism assembly, will wait to set up a plurality of locking portions on the fixed part, through a plurality of locking mechanism bodies 3 correspond the locking or unblock wait a plurality of locking portions on the mounting, can two convenient fixed part's installation and dismantlement process. Specifically, when the locking mechanism assembly is used for fixing the locking quick-change power battery pack, the locking mechanism assembly is connected with the vehicle body, the vehicle body is detachably connected with the locking part on the quick-change power battery pack through the locking mechanism, so that the installation and the disassembly processes of the quick-change power battery pack can be conveniently carried out, and the replacement efficiency of the quick-change power battery pack is improved.

The locking part is in a shape matched with the notch 321, namely the diameter of the locking part is matched with the radian of the bottom of the notch 321, so that the locking part can be inserted into the notch 321 conveniently. In addition, the locking part includes like snap ring, polygon prism, cylinder etc. as long as the opening 321 with locking part can the adaptation can.

Preferably, the locking portion is a carabiner 11.

It should be pointed out that, compared with the structure such as the lock shaft or the shaft lever, the lock ring 11 is thinner and thinner when the locking mechanism is smaller in size, the rigidity is not enough, and the lock shaft or the lock lever is easy to deform or damage, and the structure of the lock ring 11 can adapt to the locking mechanism with smaller size, is not easy to damage and deform, and is helpful to improve the connection rigidity and reliability between the quick-change power battery pack and the locking mechanism.

Specifically, the latching ring 11 includes a bent bar configured in a "U" or "n" configuration.

The bent rod is fixedly connected with the side wall of the quick-change power battery pack 1 at the opening side of the U-shaped or the U-shaped structure to form an annular structure. Compared with the structure of the lock shaft and the lock rod, the annular structure is favorable for improving the overall rigidity of the lock catch ring 11, and the connection stability of the quick-change power battery pack and the vehicle body is improved.

Note that, in the lock mechanism body 3 shown in fig. 16 to 17, the first clock direction described above is a counterclockwise direction. It will be appreciated that the first direction is clockwise if the ratchet 32 is on the right and the pawl 33 is on the left.

Further, in order to improve the convenience of the unlocking operation, an unlocking operation lever 331 is provided on the pawl 33, and specifically, an unlocking operation lever 331 extending to the outside of the locking mechanism body is provided on one end of the pawl 33, which is far away from the pawl shaft 312;

the unlocking lever 331 is fixedly connected to the connecting member at an end remote from the pawl 33.

In this embodiment, the unlocking lever 331 is pushed to drive the pawl 33 to separate from the ratchet wheel 32, and the ratchet wheel 32 without the limit of the pawl 33 rotates around the ratchet shaft 311 in the opposite direction of the first clock hand direction to release the locking portion from the notch 321, thereby completing unlocking. Preferably, the unlocking operation lever 331 may have a column structure, and is vertically disposed at one end of the pawl 33.

Specifically, as shown in fig. 7 and 10, the connecting member includes a connecting sheet metal piece 43;

the connecting sheet metal piece 43 is provided with a through hole;

the unlocking operation lever 331 penetrates through the through hole and is fixedly connected with the connecting sheet metal piece 43.

Furthermore, two adjacent connecting sheet metal pieces 43 are fixedly connected through a flexible shaft 4 in the connecting part.

In this embodiment, the connecting sheet metal piece 43 and the flexible shaft 4 can be fixedly connected by a bolt.

Further, as shown in fig. 5a, 6a, 14 and 15, the locking mechanism assembly further includes: a self-restoring spring 7; the self-restoring spring 7 is in a state of pulling the connection member in the reverse direction of the first direction.

In this embodiment, when each locking mechanism body 3 is in the unlocked state, the self-restoring spring 7 provides an acting force for moving the connecting member in the direction opposite to the first direction, and under the pulling action of the elastic force of the self-restoring spring 7, the connecting member can move in the direction opposite to the first direction without connecting the unlocking device, so that the connecting member automatically returns to the position in the locked state. Furthermore, when each locking mechanism body 3 is in the locking state, because the self-restoring spring 7 provides the acting force for the connecting part to move in the direction opposite to the first direction, the resistance for the connecting part to move in the first direction for unlocking can be given, the risk that the connecting part moves in the first direction due to the fact that the connecting part is not manually forced to move in the first direction is avoided to a certain extent, and the plurality of pawls 33 are driven to unlock at the same time, so that the reliability of the locking state of the locking mechanism assembly is guaranteed.

Wherein, when the locking mechanism assembly is connected with the quick-change bracket 2, a front view schematic diagram of the connection state of the self-restoring spring 7 and the connecting part is shown at G1 in fig. 5 and 5 a; fig. 6 and 6a are schematic top views of the connection state of the self-restoring spring 7 and the connection member at G2;

specifically, a first extending end of the self-restoring spring 7 is fixedly connected with the quick-change bracket 2, and a second extending end of the self-restoring spring 7 is connected with the connecting part;

the self-restoring spring 7 is in a state of pulling the connection member in the reverse direction of the first direction.

Further, as shown in fig. 14, a first extending end of the self-recovery spring 7 is connected to the quick-change bracket 2, a second extending end of the self-recovery spring 7 is connected to the connecting sheet metal piece 43, the self-recovery spring 7 pulls the connecting sheet metal piece 43 connected to the self-recovery spring 7 to drive the connecting sheet metal pieces 43 connected to the other locking mechanism bodies 3 through the flexible shaft 4 to link, so as to drive the unlocking operation levers 331 to link, and the movement of the unlocking operation levers 331 drives the pawls 33 to return to the locking state where the pawls 33 abut against the pawl limit blocks 313 and the pawls 33 are engaged with the ratchet 32, thereby completing the locking operation.

Further, in order to protect the movement of the ratchet wheel 32 and the pawl 33 from being interfered by the external environment, and influence the reliability and stability of the locking mechanism, and also in order to improve the service life of the locking mechanism, the ratchet wheel 32 and the pawl 33 are disposed in the accommodating cavity formed between the upper cover plate 36 and the lower cover plate 31.

Specifically, as shown in fig. 18 to 21, the lower cover plate 31 is bent to form an accommodating groove;

an upper cover plate 36 is fastened on the accommodating groove, an accommodating cavity is formed between the upper cover plate 36 and the lower cover plate 31, the ratchet 32 and the pawl 33 are arranged in the accommodating cavity, as shown in fig. 20 and 21, the three-dimensional structure schematic diagram and the front view schematic diagram of the locking mechanism body 3 with the upper cover plate 36 are provided, in the figure, the upper cover plate 36 is matched with the lower cover plate 31, the ratchet 32 and the pawl 33 are arranged in the formed accommodating cavity, and the function of protecting the ratchet 32 and the pawl 33 can be achieved.

Based on the above embodiment, in order to facilitate the unlocking operation of the locking mechanism, the upper cover plate 36 is provided with a strip-shaped through hole 361 at the unlocking movable position corresponding to the unlocking operation lever 331;

the unlock lever 331 is a member provided at the pawl 33 and distant from one end of the pawl shaft 312;

one end of the unlocking operating rod 331, which is far away from the pawl 33, passes through the strip-shaped through hole 361 and is fixedly connected with the connecting component.

Further, as shown in fig. 16 to 19, the lower cover plate 31 is provided with a notch 314 with a downward opening;

in the locking state, the notch 314 and the notch 321 enclose to form a locking hole.

In this embodiment, the lower cover plate 31 is provided with a notch 314 with a downward opening for accommodating the locking portion; in the locked state, the locking portion penetrates through the notch 314, and the locking portion is locked in the locking hole.

When the quick-change power battery pack 1 is installed to wait for the fixing piece, the locking part on the to-be-fixed piece penetrates through the notch 314, the notch 314 limits the movement space of the locking part along the vertical direction, and the situation that the locking part pushes the ratchet wheel 32 without limit in the locking process is avoided; further, in the locked state shown in fig. 17, the notch 314 locks and fixes the locking portion in a locking hole together with the notch 321, thereby improving the reliability of the locked state.

In an embodiment of the present invention, to realize that the pawl 33 can automatically lock the ratchet 32 at the locking position, the locking mechanism further includes: and the pawl resetting structure is used for resetting the pawl 33 to the position in clamping connection with the ratchet wheel 32 through the pawl resetting structure when the ratchet wheel 32 rotates to the position enabling the notch 321 to be in the locking state along the first time hand direction.

Specifically, when the ratchet wheel 32 rotates around the ratchet wheel shaft 311 along the first clock hand direction, the pawl 33 is pushed to rotate around the pawl shaft 312 to be separated from the ratchet wheel 32;

when the ratchet wheel 32 rotates along the first time direction to enable the gap 321 to be in a locking state, the pawl 33 resets to be clamped with the ratchet wheel 32 under the elastic force action of the pawl resetting structure.

In an optional embodiment of the present invention, the locking mechanism body 3 further includes:

the lower cover plate 31, the ratchet shaft 311 and the pawl shaft 312 are disposed on the lower cover plate 31; the ratchet shaft 311 penetrates through a first shaft hole formed in the ratchet 32, and the ratchet 32 is rotatably connected with the lower cover plate 31; the pawl shaft 312 penetrates through a second shaft hole formed in the pawl 33, and the pawl 33 is rotatably connected with the lower cover plate 31.

In this embodiment, the ratchet shaft 311 provided on the lower cover plate 31 is used to penetrate through the first shaft hole provided on the ratchet 32, so as to realize the rotational connection between the ratchet 32 and the lower cover plate 31; a pawl shaft 312 on the lower cover plate 31 penetrates through a second shaft hole on the pawl 33, so that the pawl 33 is rotatably connected with the lower cover plate 31; when the pawl rotates relative to the lower cover plate 31, the pawl is enabled to have a locking state of being clamped with the ratchet wheel 32 and an unlocking state of being separated from the ratchet wheel 32.

When the locking mechanism assembly is connected with the quick-change bracket 2, the lower cover plates 31 are arranged on the quick-change bracket 2 at intervals, and each locking mechanism body 3 is fixedly connected with the quick-change bracket 2 through the lower cover plate 31.

Further, to realize that the ratchet 32 can automatically enter the unlocking state, the locking mechanism further includes: and a ratchet resetting structure, when the pawl 33 rotates to be separated from the ratchet 32, the ratchet 32 is reset to a position where the notch 321 is in an unlocking state through the ratchet resetting structure.

Based on the above embodiment, the ratchet resetting structure includes the ratchet resetting spring 34, a first end of the ratchet resetting spring 34 is fixedly connected with the lower cover plate 31, and a second end of the ratchet resetting spring 34 is fixedly connected with the ratchet 32.

In this embodiment, ratchet return spring 34 provides an external force to automatically return ratchet 32 to unlock; when the pawl 33 does not perform limit locking on the ratchet wheel 32, namely when the pawl 33 is separated from the ratchet wheel 32, under the action of the pulling force of the ratchet wheel return spring 34, the ratchet wheel 32 rotates for a certain angle along the reverse direction of the first clock hand direction, so that the locking part is released from the notch 321, and automatic unlocking is completed.

Preferably, when the ratchet wheel 32 rotates to the unlocking state, the opening direction of the notch 321 is a downward inclined direction (as shown in fig. 16), so that when the to-be-fixed member is lifted and mounted, an external force for pushing the ratchet wheel 32 to rotate is conveniently applied.

Based on the above embodiment, preferably, the lower cover plate 31 is provided with a first stopper 316 and a second stopper at the locking position and the unlocking position corresponding to the ratchet 32, respectively;

in the locked state, the ratchet 32 is clamped between the first limit block 316 and the pawl 33;

in the unlocking state, the second stopper abuts against the ratchet 32.

In this embodiment, in order to limit the position of the ratchet 32 in the locked state, a first limit block 316 is disposed on the lower cover plate 31, when the ratchet 32 is in the locked state as shown in fig. 17, the first limit block 316 is engaged with a protruding structure of the ratchet 32 to prevent the ratchet 32 from continuing to rotate, and the first limit block 316 and the pawl 33 together limit the ratchet 32 in the locked state as shown in fig. 17; further, in order to make the notch 321 in an opening direction inclined downward (the unlocked state shown in fig. 16) when the ratchet 32 is in the unlocked state, so as to lock the locking portion, in this embodiment, a second stopper (not shown) is disposed on the lower cover plate 31, and the second stopper abuts against the ratchet 32, so that the ratchet 32 is kept in the unlocked state shown in fig. 16.

Further, based on the above embodiment, the pawl return structure includes the pawl return spring 35, a first end of the pawl return spring 35 is fixedly connected to the lower cover plate 31, and a second end of the pawl return spring 35 is fixedly connected to the pawl 33.

In this embodiment, the pawl return spring 35 provides an external force for the pawl 33 to automatically lock the ratchet gear 32; when the ratchet wheel 32 is in the locked state as shown in fig. 17, under the action of the elastic force of the pawl return spring 35, the pawl 33 rotates around the pawl shaft 312 by an angle and is engaged with the ratchet wheel 32, so that the ratchet wheel 32 is locked and fixed. After the pawl 33 is pushed away from the ratchet wheel 32 to separate the pawl 33 from the ratchet wheel 32, the ratchet wheel 32 can be rotated in the direction opposite to the first clock direction to unlock. In this embodiment, the pawl return spring 35 can provide an external force for the pawl 33 to automatically lock the ratchet gear 32 in the locked state, so that the pawl 33 automatically locks and fixes the ratchet gear 32 in the locked state.

Preferably, the lower cover plate 31 is fixedly connected with a pawl limit block 313;

the pawl stopper 313 abuts against one side end of the pawl 33, which is far away from the pawl shaft 312 and close to the ratchet wheel 32, and prevents the pawl 33 from rotating.

In this embodiment, the rotation range of the pawl 33 is limited by the pawl limit stopper 313, and the pawl 33 in a natural state is in a position abutting against the pawl limit stopper 313 under the elastic force of the pawl return spring 35 (as shown in fig. 17); thus, when the ratchet wheel 32 is driven to rotate in the first clock hand direction in the process of pushing up the ratchet wheel 32 by the locking portion, the ratchet wheel 32 pushes the pawl 33 to rotate around the pawl shaft 312 when rotating, so that the pawl 33 is separated from the pawl stopper 313, and when the ratchet wheel 32 is in the locking state as shown in fig. 17, the pawl 33 automatically returns to the position abutting against the pawl stopper 313 under the action of elastic force and is clamped with the ratchet wheel 32, so that the ratchet wheel 32 is locked.

In an alternative embodiment, the locking mechanism body 3 further includes: a microswitch 38;

in the locked state, the ratchet 32 contacts the microswitch 38, which is closed; in the unlocked state, the ratchet 32 is disengaged from the microswitch 38 and the microswitch 38 is open.

In this embodiment, the microswitch may be a simple circuit. When the locking mechanism body 3 is in a locking state, the microswitch 38 is communicated; when the locking mechanism body 3 is in the unlocked state, the microswitch 38 is turned off. Further, the on/off state of the microswitch 38 is continuously detected by the controller, so that the locking or unlocking state of the locking mechanism body 3 is judged. Preferably, as shown in fig. 16 to 21, a microswitch 38 is fixedly connected to the lower cover plate 31; in the locked state, the ratchet 32 contacts the microswitch 38.

In an alternative embodiment, the locking mechanism body 3 further includes: a detection device for detecting the position of the ratchet 32.

When the ratchet wheel 32 is in a locked state, the ratchet wheel 32 contacts the microswitch 38, and the detection device microswitch 38 outputs a first electric signal to indicate that the ratchet wheel 32 is locked in place; when the ratchet 32 is in the unlocked state and the ratchet 32 is disengaged from the microswitch 38, the detection device microswitch 38 outputs a first two-electrical signal to indicate that the ratchet 32 is unlocked. The locking or unlocking state of the ratchet 32 can be effectively monitored through the embodiment, and the locking reliability is ensured.

Wherein, detection device can be the sensor, and its theory of operation is: when a magnetic object approaches the detection device, a Hall element on a switch detection surface of the detection device generates a Hall effect to change the state of an internal circuit of the switch, so that the on-off of the switch is controlled by the magnetic object; preferably, the current effective action distance is 5 mm. Specifically, the magnetic object may be disposed on the ratchet 32. It should be noted that, in order to avoid the damage to the microswitch 38 caused by the ratchet 32 pushing the microswitch upward without limitation, the first limit block 316 should limit the ratchet 32 in the locked state, so that the ratchet 32 in the locked state and the microswitch 38 are in proper micro-contact positions to protect the microswitch 38.

Further, as shown in fig. 16 to 21, at least one first bolt mounting hole 315 is respectively formed at two opposite side ends of the lower cover plate 31;

the first bolt mounting hole 315 is penetrated by a bolt, and the lower cover plate 31 is connected with the fixing member.

In this embodiment, at least one first bolt mounting hole 315 is respectively disposed at two opposite side ends of the lower cover plate 31, and the lower cover plate 31 is connected to the fixing members such as the vehicle body or the quick-change bracket 2 by passing a bolt through the first bolt mounting hole 315 disposed on the lower cover plate 31.

As one implementation, as shown in fig. 18 to 21, the upper cover plate 36 is provided with an arched opening 362 with an opening facing downward;

the locking portion is disposed through the arcuate opening 362.

In this embodiment, the arched opening 362 corresponds to the notch 314 of the lower cover plate 31 for passing through the locking portion. This embodiment has effectively increased the length that locking portion locked locking mechanism body 3, can improve the locking reliability, avoids out of lock.

Further, as shown in fig. 20 and 21, the arcuate opening 362 includes a first end that is distal from the opening and is proximate to the latch portion in the latched state;

the first end is connected to a damper block 37.

In this embodiment, the damping block 37 plays a role of buffering, so as to effectively prevent the impact force and the friction force of the locking part from damaging the ratchet 32 and the lower cover plate 31, and prolong the service life of the locking mechanism assembly.

It should be noted that the damper block 37 may also be mounted on the notch 314 of the lower cover plate, specifically, may be mounted on an end of the notch 314 which is far from the opening and is close to the locking portion in the locking state.

It should be noted that, in the above embodiment, the distance between the ratchet wheel 32 and the pawl 33 is relatively short, and the shock absorption block 37 is mounted on the upper cover plate 36, so that the excessive distance between the ratchet wheel 32 and the pawl 33 and the lower cover plate 31 can be avoided. The scheme can effectively shorten the distance between the quick-change power battery pack 1 and the quick-change bracket 2.

Preferably, when the locking mechanism assembly is used to connect the quick-change power battery pack 1, as one implementation manner, as shown in fig. 1 to 4b, the quick-change bracket 2 includes: a first plate 21 enclosing a mounting space is provided.

In this embodiment, through first plate body 21 and automobile body fixed connection, and will first plate body 21 encloses and establishes into the accommodation space (installation space) that holds quick change power battery package 1, in addition set up locking mechanism assembly on the lateral wall of first plate body 21 to will through locking mechanism assembly quick change power battery package 1 locks on first plate body 21 simultaneously, has realized quick change power battery package 1 can dismantle with the automobile body through quick change support 2 and be connected, can effectual convenient quick change power battery package 1 the installation and dismantle the process, improve quick change power battery package 1's change efficiency.

Preferably, as shown in fig. 3 to 3b, 4 to 4b and 10, the first plate 21 is provided with a through hole at a position where the locking mechanism body 3 is installed;

the locking mechanism body 3 penetrates through the through hole.

Specifically, the through hole may have a notch groove structure in which the lower portion communicates with the outside as shown in fig. 10. The both sides tip of lower cover plate 31 is connected with the lateral wall of first plate body 21 through a plurality of first bolt mounting holes 315, makes upper cover plate 36 be close to the lateral wall of first plate body 21, and the tank bottom of the holding tank of lower cover plate 31 is close to the inside wall of first plate body 21, and like this, locking mechanism body 3 can run through the lateral wall setting of first plate body 21. This structural design can reduce the lateral wall thickness of the quick change support 2 of movable battery package, realizes that ratchet 32, pawl 33 and lower apron 31 can more press close to quick change power battery package 1 when the fixed quick change power battery package of locking 1, avoid taking more space, also avoid the gap between quick change power battery package 1 and the first plate body 21 too big.

Optionally, as shown in fig. 3 to 3b, flanges 22 are further disposed on the top of the two side surfaces of the first plate 21, and a plurality of second bolt mounting holes connected to the vehicle body are formed in the flanges 22. The second bolt mounting hole is penetrated through by a bolt 221, and the quick-change bracket 2 is connected with the vehicle body.

Referring to fig. 22-23, a quick-change power battery pack 1 coupled to a latch mechanism assembly is shown. Specifically, quick change power battery package 1 includes:

the locking parts are fixed on two opposite side walls of the quick-change power battery pack 1 at intervals, and the locking parts are structurally lock catch rings 11;

the quick-change power battery pack 1 is detachably connected with the quick-change bracket 2 arranged on the vehicle body through a plurality of lock catch rings 11.

In the embodiment, the lock catch rings 11 arranged on the outer walls of the two opposite side walls of the quick-change power battery pack 1 at intervals are matched with the quick-change bracket 2 and the locking mechanism assembly which are installed on the vehicle body, so that the quick-change power battery pack 1 is detachably connected with the vehicle body, the quick-change power battery pack is quickly replaced when the electric quantity of the power battery is insufficient, the time consumed by charging the power battery is reduced, and the user can go out on time.

It is worth mentioning that, different from the structures such as the lock shaft or the shaft lever, when the locking mechanism is small in size, the lock shaft is correspondingly thinner, the rigidity is not enough, and the lock shaft is easy to deform or damage, and the structure of the lock catch ring 11 can adapt to the locking mechanism with a small size, so that the lock catch ring is not easy to damage and deform, and the connection rigidity and reliability between the quick-change power battery pack and the locking mechanism are improved.

The utility model also provides a locking method of being applied to the quick change power battery package of above-mentioned locking mechanism assembly, wherein, a plurality of locking portions of installation on the quick change power battery package, the method includes:

in the locking process, the limiting assembly is controlled to pivot to be separated from the sliding assembly, and one-time unlocking is completed;

and controlling the quick-change power battery 1 and the locking mechanism body 3 to move relatively, so that the locking parts on the quick-change power battery pack are locked into the locking mechanism bodies in a one-to-one correspondence manner, and the locking operation is completed.

It should be noted that the relative movement between the quick-change power battery 1 and the locking mechanism body 3 may be that the quick-change power battery 1 approaches the locking mechanism body 3, for example, the power battery pack 1 is installed in a lifting manner; or the locking mechanism body 3 may approach the quick-change power battery 1, for example, the electric vehicle is lifted upwards, the quick-change power battery pack 1 is not moved, and then the height of the electric vehicle is reduced, during the descending process of the electric vehicle, the locking portions correspondingly push the locking mechanism bodies one by one and lock the locking mechanism bodies into the locking mechanism bodies, so as to complete the locking operation on the power battery pack 1; or the quick-change power battery 1 and the locking mechanism body 3 can be simultaneously close to each other.

Furthermore, the utility model provides a quick change power battery package's unblock method is applied to as above locking mechanism assembly, a plurality of locking portions of installation on the quick change power battery package are unblock the in-process of quick change power battery package, the method includes:

the limiting assembly is pivoted to be separated from the sliding assembly through the unlocking device, and primary unlocking is completed;

after once unlocking is completed, the sliding assembly is pushed to slide along the first direction through the unlocking device, and each locking mechanism body is unlocked in a linkage mode to release the locking part.

After primary unlocking is finished, the sliding assembly is pushed to move along a first direction through the unlocking device, the connecting component is driven to move along the first direction, and the pawl 33 in each locking mechanism body 3 is separated from the ratchet wheel 32;

when the pawl 33 is separated from the ratchet wheel 32, the ratchet wheel 32 is rotated around the ratchet wheel shaft 311 to unlock the notch 321, and the locking part is released from the notch 321 to complete the unlocking operation.

In addition, the utility model also provides an electric automobile, the electric automobile includes the above-mentioned locking mechanism assembly;

the electric automobile is detachably connected with a to-be-fixed piece through the locking mechanism assembly.

Treat the mounting when power battery package, power battery package through a plurality of snap rings 11 with install locking mechanism assembly on the electric automobile can dismantle the connection for when power battery electric quantity is not enough, can realize quick replacement power battery package, reduce the time that power battery charges and consume, thereby ensure the punctual trip of user.

Compared with the existing power battery quick-change mechanism in the market, the scheme has the following advantages:

1. the accommodating space of the battery pack is larger, the size in the longitudinal direction can be increased, the locking and unlocking are flexible, and the fault tolerance is higher;

2. the power battery pack is only mounted and dismounted in a rising or descending movement mode relative to the electric automobile, so that the battery replacement time is shortened.

3. The locking mechanism is not restricted by the shape of the battery, has small structural size and does not occupy the space of the battery box body.

4. The disassembly mode is simple and reliable, the battery pack with any shape and appearance can be conveniently popularized and applied, and the unified interface of the battery changing station is facilitated. And the unlocking and locking modes are simple and reliable.

Specifically, when the power battery pack 1 is unlocked, the unlocking device in the quick-change station is used for jacking the lock body 5, the unlocking shifting block 61 and the linear sliding block 63 are pushed to move along the strip-shaped sliding block 62, the flexible shaft 4 is driven by the movement of the unlocking shifting block 61 to move along the first direction, the unlocking operating rods 331 on the pawls 33 are further pushed, the pawls 33 on the locking mechanism bodies 3 are driven by the unlocking operating rods 331 to rotate around the pawl shafts 312 to an unlocking state separated from the ratchet wheels 32 under the action of thrust, the ratchet wheels 32 losing the limit of the pawls 33 rotate along the opposite direction of the first time direction, the locking parts are released from the gaps 321, and linkage unlocking is realized.

When the power battery pack 1 is locked and fixed, the lock catch ring 11 on the power battery pack 1 pushes the ratchet wheel 32, so that the opening 321 on the ratchet wheel 32 rotates by a certain angle relative to the lower cover plate 31, the rotation of the ratchet wheel 32 also drives the pawl 33 to rotate by a certain angle around the pawl shaft 312, so that the pawl 33 is separated from the pawl limit block 313, and when each lock catch ring 11 is in a locking state locked in the opening 321, under the combined action of the elastic force of the pawl return spring 35 and the elastic force of the self-recovery spring 7, the pawl 33 immediately returns to be abutted against the pawl limit block 313, and the locking state of the pawl 33 and the ratchet wheel 32 in a clamping connection is realized, so that the locking and fixing of the ratchet wheel 32 are realized, and the locking action of the power battery pack.

In conclusion, the scheme provided by the embodiment is simple in locking process and convenient to realize generalization, and the locking can be completed only by pushing the power battery pack to vertically move upwards without other actions; and the state of the lock body is monitored in real time through the micro switch 38 and the sensor 65, and once the lock is unlocked, a lock falling signal is transmitted immediately, so that the reliability is ensured.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing is directed to the preferred embodiments of the present invention, and it will be understood by those skilled in the art that various changes and modifications may be made without departing from the principles of the invention, and that such changes and modifications are intended to be included within the scope of the invention.

Claims (14)

1. A locking mechanism assembly, comprising:

a connecting member connected to the plurality of locking mechanism bodies (3):

secondary locking mechanism includes: the sliding assembly is fixedly connected with the connecting part;

when the plurality of locking mechanism bodies (3) are in a locking state, the limiting assembly is in a secondary locking state for locking the sliding assembly; when the limiting assembly is in an unlocking state separated from the sliding assembly, the plurality of locking mechanism bodies (3) are driven to enter the unlocking state through the connecting component under the condition that the sliding assembly is pushed to slide along the first direction.

2. The locking mechanism assembly of claim 1, wherein the slide assembly comprises: a slide rail structure and an unlocking shifting block (61);

the unlocking shifting block (61) is arranged on the sliding rail structure in a sliding manner and is fixedly connected with the connecting part;

when the secondary locking state is achieved, the limiting assembly is abutted to the unlocking shifting block (61) to prevent the unlocking shifting block (61) from sliding and unlocking along the sliding rail structure.

3. The locking mechanism assembly of claim 2, wherein the slide assembly further comprises:

the magnetic block is arranged on the unlocking shifting block (61);

the sensor (65), the said sensor (65) is installed in and equipped with the corresponding position of said unblock shifting block (61) of the magnetic block in the said secondary locking state; wherein, in the secondary lock state, the sensor (65) outputs an electrical signal.

4. The locking mechanism assembly of claim 1, wherein the limiting member includes a reset member;

in the secondary locking state, the limiting assembly pivots to a position abutting against the sliding assembly under the action of the resetting piece.

5. The locking mechanism assembly of claim 1, wherein the connecting member comprises a plurality of flexible shafts (4);

two adjacent locking mechanism bodies (3) are connected through the flexible shaft (4).

6. The locking mechanism assembly of claim 5, wherein the flexible shaft (4) is sleeved with a plurality of linear bearings (41);

the linear bearings (41) define the motion track of the flexible shaft (4).

7. The locking mechanism assembly according to claim 1, characterized in that the locking mechanism body (3) comprises: the pawl (33) and the ratchet wheel (32) with the notch (321) arranged on the outer edge;

the ratchet wheel (32) is rotationally connected with a ratchet wheel shaft (311), and the pawl (33) is rotationally connected with a pawl shaft (312);

when the ratchet wheel (32) rotates around the ratchet wheel shaft (311) to enable the gap (321) to be in a locking state, the pawl (33) rotates around the pawl shaft (312) to be clamped with the ratchet wheel (32) to prevent the ratchet wheel (32) from rotating and unlocking;

a plurality of the pawls (33) are connected by the connecting member;

under the condition that the sliding assembly is pushed to slide along the first direction, each pawl (33) is driven to rotate to be separated from the ratchet wheel (32) through a connecting component, and the ratchet wheel (32) is rotated to enable the gap (321) to be in an unlocking state.

8. The locking mechanism assembly of claim 7, wherein the locking mechanism body (3) further comprises:

and the pawl resetting structure is used for enabling the pawl (33) to rotate to the position when the notch (321) is in a locking state along the first time direction when the ratchet wheel (32) rotates along the first time direction, and the pawl (33) rotates to the position when the ratchet wheel (32) is clamped.

9. The locking mechanism assembly of claim 7, wherein the locking mechanism body (3) further comprises:

and the ratchet wheel resetting structure is used for enabling the ratchet wheel (32) to rotate to a position when the notch (321) is in an unlocking state through the ratchet wheel resetting structure when the pawl (33) rotates to be separated from the ratchet wheel (32).

10. The locking mechanism assembly of claim 7, wherein the pawl (33) is provided with an unlocking lever (331) extending out of the locking mechanism;

the unlocking operation rod (331) is fixedly connected with the connecting part.

11. The locking mechanism assembly of claim 7, wherein the locking mechanism body (3) further comprises: a microswitch (38);

in the locked state, the ratchet (32) contacts the microswitch (38), which is closed;

in the unlocked state, the ratchet (32) is disengaged from the microswitch (38), which is off.

12. The locking mechanism assembly of claim 7, further comprising: detection means for detecting the position of the ratchet (32);

when the ratchet wheel (32) is in a locking state, the detection device outputs a first electric signal; when the ratchet wheel (32) is in an unlocking state, the detection device outputs a second electric signal.

13. The locking mechanism assembly of claim 1, further comprising: a self-restoring spring (7);

the self-restoring spring (7) is in a state of pulling the connecting member in a direction opposite to the first direction.

14. An electric vehicle, characterized in that the electric vehicle comprises the lock mechanism assembly according to any one of claims 1 to 13;

the electric automobile is detachably connected with the quick-change battery pack through the locking mechanism assembly.

Images