CN111775762A

CN111775762A - Quick locking device for connecting battery box body and vehicle body and electric vehicle

Info

Publication number: CN111775762A
Application number: CN202010582800.4A
Authority: CN
Inventors: 刘爽; 黄红波; 周坤; 吴杰余; 朱立宾
Original assignee: Dongfeng Motor Corp
Current assignee: Dongfeng Motor Corp
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2020-10-16
Anticipated expiration: 2040-06-23
Also published as: CN111775762B

Abstract

The application relates to a quick locking device for connecting a battery box body and a vehicle body and an electric vehicle, wherein the quick locking device comprises a rotating shaft, a spring, a locking body, a rotating body and a fixing body, and the bottom end of the quick locking device is provided with a first cylinder structure and two first grooves; the locking body is provided with two locking shafts extending outwards; the top end of the rotating body is provided with a second cylinder structure and is provided with two second grooves; the rotating shaft and the bottom end of the rotating body are fixed on the fixing body; the rotating shaft, the spring, the locking body and the rotating body are coaxially arranged. The embodiment of the application provides a quick locking mechanism for connecting a battery box body and a vehicle body, which is simple and reliable in structure and convenient to process, and locking and unlocking actions can be realized only by rotating a rotating body in the quick locking mechanism; and the rotor and the locking body are separated into two independent parts, the strength and the service life of the locking body cannot be influenced by frequent use, and the rotor only needs to be replaced after being damaged, so that the realization cost is low.

Description

Quick locking device for connecting battery box body and vehicle body and electric vehicle

Technical Field

The application relates to the field of quick locking mechanisms of battery boxes and automobile bodies, in particular to a quick locking device for connecting a battery box and an automobile body and an electric automobile.

Background

In order to solve the energy problem, China is developing the electric automobile industry vigorously, and the anxiety of users on the endurance mileage is difficult to overcome, and the quick change technology can meet the requirements of the customers on the endurance mileage on one hand and can solve the charging time anxiety of the operating users on the other hand. At present, a plurality of battery replacing modes are adopted, in the related technology, the battery box body is connected with a vehicle body in a locking mode during bolt tightening or buckling, but if the quick replacing mode of bolt tightening is adopted, the defects of service life exist, and the defect of vibration noise exists in a buckling type locking mode and the like.

Therefore, a simple, convenient and reliable structure with low cost is needed.

Disclosure of Invention

The embodiment of the application provides a quick locking means and electric automobile for battery box and body coupling to adopt the bolt tightening to have the problem of defect on the life among the solution correlation technique.

In a first aspect, a quick locking device for connecting a battery box body and a vehicle body is provided, wherein a vehicle body fixing part is arranged in the vehicle body, the device comprises a rotating shaft, a locking body, a spring, a rotating body and a fixing body, the rotating shaft is rotatably unlocked/locked on the vehicle body fixing part, and the bottom end of the rotating shaft is provided with a first cylindrical structure and two first grooves; the locking body is provided with two locking shafts extending outwards; the spring is arranged between the cylinder top wall of the first cylinder structure and the two locking shafts; the upper part of the rotating body is provided with a second cylinder structure and is provided with two second grooves, and when the two locking shafts are embedded in the two first grooves, the outer wall surface of the rotating body is meshed with the inner wall surface of the first cylinder structure; the fixing body is provided with a mounting hole, and the bottom end of the rotating shaft and the upper part of the rotating body are rotatably mounted in the mounting hole; the rotating shaft, the locking body and the rotating body are coaxially arranged.

In some embodiments, the rotor is axially and axially movably engaged with an inner wall surface of the first hollow cylindrical structure.

In some embodiments, the outer wall surface of the rotating body is provided with a plurality of racks extending outwards, the length direction of the racks is consistent with the axial direction of the rotating body, and the inner wall surface of the first cylindrical structure is provided with a plurality of channels engaged with the racks.

In some embodiments, the rotating shaft is provided with two connecting shafts extending outwards and used for being clamped in clamping holes of the vehicle body fixing piece.

In some embodiments, the bottom end of the rotating body is provided with two notches for being fixedly connected with the outer part in a clamping manner.

In some embodiments, the bottom end of the rotating shaft is a flange end, and the flange end is covered and connected to the top of the fixed body through an upper cover.

In some embodiments, the rotator is provided with an annular boss extending outwards, and the lower part of the rotator passes through the mounting hole and is limited and stopped by the boss.

In some embodiments, the top surface of the fixing body is provided with a mounting table, the mounting table is a circular ring-shaped mounting table, and the circular ring-shaped mounting table is arranged at the periphery of the mounting hole and is used for being embedded into the flange end of the rotating shaft.

In some embodiments, the upper cover is screwed and fixed on the top surface of the fixing body.

In a second aspect, the present application further provides an electric vehicle, which includes a vehicle body fixing member and the quick locking device for connecting the battery box body and the vehicle body as described above, wherein the quick locking device locks/unlocks the battery box body to the vehicle body fixing member.

The beneficial effect that technical scheme that this application provided brought includes:

the embodiment of the application provides a quick locking mechanism for connecting a battery box body and a vehicle body, which is simple and reliable in structure and convenient to process, and locking and unlocking actions can be realized only by rotating a rotating body in the quick locking mechanism; and the rotor and the locking body are separated into two independent parts, the strength service life of the locking body cannot be influenced by frequent use, and the rotor can be continuously used only by replacing the part after being damaged, so that the realization cost is low.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is an exploded schematic view of a quick locking device for connecting a battery box and a vehicle body according to an embodiment of the present disclosure;

FIG. 2 is a schematic perspective view of a quick locking device for connecting a battery box and a vehicle body according to an embodiment of the present disclosure;

FIG. 3 is a schematic cross-sectional view of a quick locking device for connecting a battery box and a vehicle body according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a rotating shaft of the quick locking device for connecting the battery box body and the vehicle body according to the embodiment of the application;

FIG. 5 is a schematic structural diagram of a locking body of the rapid locking device for connecting a battery box body and a vehicle body according to the embodiment of the application;

FIG. 6 is a schematic structural diagram of a rotating body of the rapid locking device for connecting the battery box body and the vehicle body according to the embodiment of the application;

fig. 7 is a schematic structural diagram of a fixing body of a quick locking device for connecting a battery box body and a vehicle body according to an embodiment of the application.

In the figure: 1. a vehicle body mount; 2. a rotating shaft; 21. a connecting shaft; 22. a first groove; 23. a channel; 3. an upper cover; 31. a first screw hole; 4. a spring; 5. a locking body; 51. a lock shaft; 6. a rotating body; 61. a rack; 62. a second groove; 63. a notch; 64. a top end face; 65. a boss; 7. a fixed body; 71. mounting holes; 72. a limiting table; 73. an installation table; 74. a second screw hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application provides a quick locking means for battery box and automobile body are connected, and it can solve the problem that there is the defect on life in the mode of adopting the bolt to screw up among the prior art to realize battery box and automobile body and connect.

Referring to fig. 1-2 and 5, a quick locking device for connecting a battery box body and a vehicle body, wherein a vehicle body fixing piece 1 is arranged in the vehicle body, the device comprises a rotating shaft 2, a locking body 5, a spring 4, a rotating body 6 and a fixing body 7, the rotating shaft 2 is unlocked/locked on the vehicle body fixing piece 1, and the bottom end of the rotating shaft 2 is provided with a first cylindrical structure and is provided with two first grooves 22; the locking body 5 has two locking shafts 51 extending outward; the spring 4 is arranged between the cylinder top wall of the first cylinder structure and the two locking shafts 51; the upper part of the rotating body 6 is provided with a second cylindrical structure and is provided with two second grooves 62, and when the two locking shafts 51 are embedded in the two first grooves 22, the outer wall surface of the rotating body 6 is meshed with the inner wall surface of the first cylindrical structure; the fixing body 7 is provided with a mounting hole 71, and the bottom end of the rotating shaft 2 and the upper part of the rotating body 6 are rotatably mounted in the mounting hole 71; the rotation shaft 2, the locking body 5 and the rotation body 6 are coaxially arranged.

In a preferred embodiment, the first groove 22 and the second groove 62 correspond in axial position.

When the battery pack needs to be locked, the rotating body 6 is pressed by external force until the rotating body 6 drives the locking shaft 11 to be embedded into the first groove 22, the outer wall surface of the rotating body 6 is meshed with the inner wall surface of the first cylindrical structure of the rotating shaft 2, and the rotating body 6 drives the rotating shaft 2 to be rotationally locked on the vehicle body fixing piece 1; after locking, the pressing of the rotating body 6 is released, and the locking shaft 11 is embedded into the second groove 62 under the action of the elastic force of the spring 4; when the automobile body fixing piece is required to be unlocked, the rotating body 6 is pressed until the rotating body 6 drives the locking shaft 11 to be embedded into the first groove 22, the outer wall surface of the rotating body 6 is meshed with the inner wall surface of the first cylindrical structure of the rotating shaft 2, and the rotating body 6 drives the rotating shaft 2 to rotate in the opposite direction until the rotating body rotates to be unlocked from the automobile body fixing piece 1.

The embodiment of the application provides a quick locking mechanism for connecting a battery box body and a vehicle body, the quick locking mechanism is simple and reliable in structure and convenient to process, and locking and unlocking actions can be realized only by rotating a rotating body 6; and rotor 6 and locking body 5 divide into two independent parts, and frequent use can not influence locking body 5 intensity life-span, and rotor 6 takes place to destroy the back and only need change this part can continue to use, realizes with low costsly.

In some embodiments, referring to fig. 3, the rotating body 6 is axially movably engaged with an inner wall surface of the first hollow cylindrical structure.

In a specific embodiment, referring to fig. 4, a plurality of racks 61 extending outward are disposed on an outer wall surface of the rotating body 6, a length direction of the racks 61 is identical to an axial direction of the rotating body 6, and a plurality of grooves 23 engaged with the racks 61 are disposed on an inner wall surface of the first cylindrical structure.

In another alternative embodiment, still can realize being equipped with a plurality of recesses on the outer wall of rotor 6, be equipped with a plurality of dogtooths on the internal face of first drum structure, the dogtooths and the mode of recess looks meshing realize 2 meshes to rotor 6 of axis of rotation, in other embodiments, still can realize realizing for setting up external screw thread and internal thread mode respectively through the internal face of first drum structure and the outer wall of rotor 6 to and the terminal of external screw thread or internal thread sets up spacing bellied mode, realize that axial rotor 6 is flexible and rotate the locking effect for axis of rotation 2.

As described above, according to the present application, the maximum width of the upper portion of the rotating body 6 is smaller than the inner diameter of the first cylindrical structure, the upper portion of the rotating body 6 is locked by the rack 61 being inserted into the groove 23 in the radial direction of the rotating shaft 2, and under the action of the upward pushing force, the rotating body 6 pushes the two locking shafts 51 to move upward, and the rack 61 moves upward along the groove 23 until the two locking shafts 51 are inserted into the two first grooves 22.

In some embodiments, referring to fig. 2, the rotating shaft 2 is provided with two connecting shafts 21 extending outward, the two connecting shafts 21 are embedded into the fastening holes of the vehicle body fixing member 1, and the two rotating shafts 2 are rotated by a certain angle to fix the rotating shaft 2 on the vehicle body fixing member 1, so that the rotating shaft 2 is easy to assemble and disassemble, and the contact loss is small when the rotating shaft 2 is repeatedly used.

In some embodiments, referring to fig. 6, the bottom end of the rotating body 6 is provided with two notches 63 for being fixedly connected with an external component in a clamping manner, so that the implementation is convenient and simple, and the production and processing are facilitated.

In some embodiments, the bottom end of the rotating shaft 2 is a flange end, and the flange end is covered and connected to the top of the fixing body 7 through the upper cover 3 to realize fixed connection to the fixing body 7, so that the rotating shaft 2 can rotate relative to the fixing body 7, and simultaneously, the bottom end of the rotating shaft 2 can be fixed and limited.

In a specific embodiment, the upper cover 3 is screwed and fixed to the top surface of the fixed body 7 by bolts passing through the first screwing hole 31 of the upper cover 3 and the second screwing hole 74 of the top surface of the fixed body 7, and the flange end of the rotating shaft 2 is bolted to the top surface of the fixed body 7.

Referring to fig. 7, in some embodiments, the fixing body 7 is provided with a mounting hole 71, a radially contracted limiting table 72 is disposed in the mounting hole 71, the rotating body 6 is provided with a circular boss 65 extending radially outward, a portion of the rotating body 6 passes through the mounting hole 71, and the boss 65 is limited and stopped on the limiting table 72, so that the implementation is convenient and simple.

In a specific embodiment, the hole wall on the mounting hole 71 provides a moving space for the rotor 6 to move up and down relative to the rotating shaft 2, and in a more specific embodiment, the height of the hole wall on the boss 65 of the mounting hole 71 is not less than the length of the channel, so as to avoid that when the rotor 6 moves telescopically relative to the rotating shaft 2 as a whole, the contact connection between the components fails, and thus the locking and unlocking of the quick locking device fails.

In some embodiments, the top surface of the fixing body 7 is provided with an installation table 73, the installation table 73 is a circular ring-shaped installation sinking groove and is located at the periphery of the installation hole 71, and is used for being embedded into the flange end of the rotating shaft 2, so that after the rotating shaft 2 is installed on the fixing body 7, the installation surface is flat, and the appearance is more attractive.

On the other hand, the application also provides an electric automobile which comprises the automobile body fixing part 1 and the quick locking device for connecting the battery box body and the automobile body, wherein the quick locking device is used for locking/unlocking the battery box body and connecting the battery box body on the automobile body fixing part 1.

The embodiment of the application provides an electric automobile, and due to the adoption of the quick locking device for connecting the battery box body and the automobile body, locking and unlocking actions can be realized only by rotating the rotating body 6 of the quick locking device; and rotor 6 and locking body 5 divide into two independent parts, and frequent use can not influence locking body 5 intensity life-span, and rotor 6 takes place to destroy the back and only need change this part can continue to use, realizes with low costsly.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a quick locking means for battery box and body coupling is equipped with automobile body mounting (1) in the automobile body, its characterized in that, the device includes:

the rotating shaft (2) is rotationally unlocked/locked on the vehicle body fixing piece (1), and the bottom end of the rotating shaft is provided with a first cylindrical structure and two first grooves (22);

a locking body (5) having two locking shafts (51) extending outward;

a spring (4) provided between the cylinder top wall of the first cylindrical structure and the two lock shafts (51);

the upper part of the rotating body (6) is provided with a second cylinder structure and is provided with two second grooves (62), and when the two locking shafts (51) are embedded in the two first grooves (22), the outer wall surface of the rotating body (6) is meshed with the inner wall surface of the first cylinder structure;

a fixed body (7) provided with a mounting hole (71), wherein the bottom end of the rotating shaft (2) and the upper part of the rotating body (6) are rotatably mounted in the mounting hole (71);

the rotating shaft (2), the locking body (5) and the rotating body (6) are coaxially arranged.

2. The quick locking device for battery box and body connection according to claim 1, characterized in that the rotor (6) is axially movably engaged on the inner wall surface of the first hollow cylindrical structure.

3. The quick locking device for connecting a battery box body and a vehicle body according to claim 2, wherein a plurality of racks (61) extending outwards are arranged on the outer wall surface of the rotating body (6), the length direction of the racks (61) is consistent with the axial direction of the rotating body (6), and a plurality of channels (23) meshed with the racks (61) are arranged on the inner wall surface of the first cylindrical structure.

4. The quick locking device for connecting a battery box body and a vehicle body as claimed in claim 1, wherein the rotating shaft (2) is provided with two connecting shafts (21) extending outwards for being clamped in clamping holes of the vehicle body fixing piece (1).

5. The quick locking device for connecting a battery box and a vehicle body as claimed in claim 1, characterized in that the bottom end of the rotor (6) is provided with two notches (63) for snap-fit connection with external parts.

6. The quick locking device for connecting a battery box body and a vehicle body as claimed in claim 1, characterized in that the bottom end of the rotating shaft (2) is a flange end, and the flange end is covered and connected to the top of the fixed body (7) through the upper cover (3).

7. The quick locking device for connecting the battery box body and the vehicle body as claimed in claim 6, wherein the rotator (6) is provided with an annular boss (65) extending outwards, and the lower part of the rotator (6) passes through the mounting hole (71) and is limited and stopped by the boss (65).

8. The quick locking device for connecting the battery box body and the vehicle body as claimed in claim 7, wherein the top surface of the fixed body (7) is provided with a mounting table (73), the mounting table (73) is a circular ring-shaped mounting table (73), and the circular ring-shaped mounting table (73) is arranged at the periphery of the mounting hole (71) and is used for being embedded into the flange end of the rotating shaft (2).

9. The quick locking device for the connection of a battery box body and a vehicle body as claimed in claim 6, characterized in that the upper cover (3) is screwed and fixed to the top surface of the fixing body (7).

10. An electric vehicle, comprising:

vehicle body attachment (1) and a quick-locking device for battery box and vehicle body connection according to any of claims 1 to 9, which quick-locking device locks/unlocks the battery box to the vehicle body attachment (1).