Locking mechanism for battery box, linkage locking device and electric vehicle

Abstract

The utility model discloses a locking mechanism for a battery box, a linkage locking device and an electric vehicle, and the locking mechanism comprises a driving assembly, two push rods and two locking assemblies, the driving assembly comprises a rotatable driving shaft and a driven shaft which is rotatably connected with the driving shaft; one ends of the two push rods are rotationally connected to the two ends of the driven shaft respectively; the two locking assemblies are connected with the other ends of the push rods correspondingly and used for being clamped at the two ends of the battery box correspondingly. The driving shaft rotates to drive the driven shaft to rotate, the driven shaft rotates to drive the two push rods to rotate, and then the two locking assemblies are driven to be close to or far away from the battery box to complete replacement of the battery box, so that the battery box is stable, and replacement is easy, convenient and rapid.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy electric vehicle field, especially a locking mechanism for battery box, linkage locking device and electric motor car. BACKGROUND

[0002] In the prior art, in order to meet the driving demand of new energy electric vehicle, the way of replacing battery box is often used to solve the problem of endurance.

[0003] The push-pull type quick-change battery box is a widely used battery replacement method, but due to the large weight of the quick-change battery box, the current method is to limit or compress to prevent the battery box from coming out. Among them, the limiting method cannot be adjusted according to the size of the frame and the battery box, in order to ensure the interchangeability of the battery box, there will be a large gap, which will cause the battery box to be unstable and will cause the battery box to collide and produce noise during vehicle operation; and the compression method requires a large compression force for the battery box due to limited space, which is not convenient for unlocking the battery box. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a locking mechanism for battery box, linkage locking device and electric motor car, which aims to solve the problem of unstable fixation or inconvenience of replacing battery box in existing new energy electric vehicle.

[0005] To solve the above technical problems, the utility model aims to realize the following technical scheme: a locking mechanism for battery box, comprising: a drive assembly, two push rods and two locking assemblies; the drive assembly comprises a driving shaft and a driven shaft which are rotatable and connected; one end of the two push rods is rotatably connected to the two ends of the driven shaft; the other end of the two push rods is connected to the two locking assemblies respectively, and the two locking assemblies are used for clamping at both ends of the battery box respectively; wherein, when the driving shaft rotates clockwise, the two locking assemblies approach and clamp the battery box; when the driving shaft rotates counterclockwise, the two locking assemblies move away and release the battery box, or when the driving shaft rotates counterclockwise, the two locking assemblies approach and clamp the battery box; when the driving shaft rotates clockwise, the two locking assemblies move away and release the battery box.

[0006] Further, the drive assembly further comprises: a housing, the housing is provided with a containing cavity, the driving shaft is rotatably connected to the housing, and the driven shaft is perpendicular to the driving shaft and rotatably connected to the housing; wherein, the driving shaft is provided with a gear part, the driven shaft is provided with a worm gear, and the gear part and the worm gear are meshed and connected in the containing cavity.

[0007] Further, the locking mechanism further comprises a support, and the locking assembly is rotatably connected to the support.

[0008] Further, the locking assembly and the support are connected in a lever structure, one end of the locking assembly is connected to the other end of the push rod, and the other ends of the two locking assemblies are used for clamping at two ends of the battery box respectively.

[0009] Further, the locking assembly comprises a first connecting portion, a fixing portion and a clamping portion connected in sequence, the first connecting portion is connected to the other end of the push rod, the fixing portion is rotatably connected to the support, and the clamping portion is bent towards the battery box.

[0010] Further, the other end of the push rod is provided with a screw rod nut structure, and the screw rod nut structure is connected to the first connecting portion.

[0011] Further, the screw rod nut structure comprises a threaded portion and a second connecting piece, the second connecting piece is connected to the first connecting portion, a third connecting hole is arranged on the second connecting piece, and the threaded portion is rotatably connected in the third connecting hole.

[0012] The utility model also provides a linkage locking device, including control piece, connecting shaft and a plurality of sequentially arranged locking mechanism as described above, the connecting shaft connects the driving shaft of two adjacent locking mechanism, and the control piece connects the driving shaft of one locking mechanism at two ends of a plurality of locking mechanism.

[0013] Further, the linkage locking device further comprises a fourth connecting piece, sixth connecting holes are arranged at two ends of the connecting shaft respectively, a seventh connecting hole is arranged at one end of the connecting shaft connected with the driving shaft, and the fourth connecting piece connects the sixth connecting hole and the seventh connecting hole.

[0014] The utility model also provides an electric motor car, including electric motor car body, frame, battery box and linkage locking device as described above, the frame is arranged on the electric motor car body, the linkage locking device is arranged on the frame, the battery box is arranged on the frame, and a plurality of locking mechanisms of the linkage locking device abut at two sides of the battery box.

[0015] The utility model discloses an embodiment provides a locking mechanism for battery box, linkage locking device and electric motor car, wherein, locking mechanism includes: drive assembly, two push rods and two locking assemblies, drive assembly includes rotatable driving shaft and rotatable from driving shaft's driven shaft, two push rods one end rotatable connection in the both ends of driven shaft respectively, two locking assemblies are connected to the other end of push rod respectively, and two locking assemblies are used for clamping in the both ends of battery box respectively, wherein, when driving shaft rotates clockwise, two locking assemblies are close and hold battery box, when driving shaft rotates counterclockwise, two locking assemblies are far away and release battery box, or, when driving shaft rotates counterclockwise, two locking assemblies are close and hold battery box, when driving shaft rotates clockwise, two locking assemblies are far away and release battery box, the utility model discloses through driving shaft rotation and drive driven shaft rotation, driven shaft rotation and drive two push rods rotation, and then drive two locking assemblies close or far away battery box to complete the replacement of battery box, not only make battery box more stable and replace simple and quick. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be needed to use the drawings in the embodiment description briefly introduced, obviously, the following description in the drawings is some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0017] Figure 1 The locking mechanism provided by the utility model embodiment is shown in the structural diagram.

[0018] Figure 2 The locking mechanism provided by the utility model embodiment is shown in the explosion diagram.

[0019] Figure 3 The driving assembly first perspective provided by the utility model embodiment is shown in the structural diagram.

[0020] Figure 4 The driving assembly second perspective provided by the utility model embodiment is shown in the structural diagram.

[0021] Figure 5 The driving assembly first direction provided by the utility model embodiment is shown in the sectional view.

[0022] Figure 6 The driving assembly second direction provided by the utility model embodiment is shown in the sectional view.

[0023] Figure 7 The driving assembly provided by the utility model embodiment is shown in the explosion diagram.

[0024] Figure 8Structure schematic view of one side of the locking mechanism provided by the embodiment of the utility model;

[0025] Figure 9 Structure schematic view of the other side of the locking mechanism provided by the embodiment of the utility model;

[0026] Figure 10 Structure schematic view of the first perspective of the linkage locking device provided by the embodiment of the utility model;

[0027] Figure 11 Structure schematic view of the second perspective of the linkage locking device provided by the embodiment of the utility model;

[0028] Figure 12 Structure schematic view of the locking mechanism connected in the middle provided by the embodiment of the utility model;

[0029] Figure 13 Structure schematic view of the first perspective of the vehicle frame in the state of placing the battery box provided by the embodiment of the utility model;

[0030] Figure 14 Structure schematic view of the second perspective of the vehicle frame in the state of placing the battery box provided by the embodiment of the utility model;

[0031] Figure 15 Structure schematic view of the vehicle frame in the state of not placing the battery box provided by the embodiment of the utility model;

[0032] Figure 16 Partial view of the vehicle frame in the state of not placing the battery box provided by the embodiment of the utility model.

[0033] Explanation of the marks in the figure:

[0034] 1, drive assembly; 11, driving shaft; 111, gear part; 112, seventh connecting hole; 12, driven shaft; 121, worm wheel; 122, protruding part; 123, recessed part; 124, shaft sleeve; 125, eighth connecting hole; 13, shell; 131, shell mounting hole; 132, first bearing hole; 133, second bearing hole; 134, first threaded hole; 135, second threaded hole; 14, accommodating cavity; 15, first bearing; 16, second bearing; 17, first bearing baffle; 171, third threaded hole; 18, second bearing baffle; 181, fourth threaded hole;

[0035] 2, universal joint; 21, second connecting hole; 22, ninth connecting hole;

[0036] 3, push rod; 31, first connecting hole; 32, threaded part;

[0037] 4, locking assembly; 41, first connecting part; 42, fixing part; 421, fourth connecting hole; 43, clamping part; 44, second connecting part; 441, third connecting hole; 442, tenth connecting hole;

[0038] 5, bracket; 51, fifth connecting hole; 52, bracket mounting hole;

[0039] 6, first connecting part;

[0040] 7, third connecting part;

[0041] 8, fifth connecting part;

[0042] 10, control part;

[0043] 20, connecting shaft; 201, sixth connecting hole;

[0044] 30, locking mechanism;

[0045] 40, fourth connecting part;

[0046] 100, frame;

[0047] 200, battery box;

[0048] 300, linkage locking device. DETAILED DESCRIPTION

[0049] 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. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0050] It should be understood that when used in the specification and the appended claims, the terms "comprise" and "include" indicate the presence of described features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0051] It should also be understood that the terms used in the present application specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the present application specification and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0052] It should be further understood that the term "and / or" as used in the specification and in the claims, if any, means any one and / or all possible combinations of one or more of the associated listed items.

[0053] In combination Figures 1-16 As shown in the accompanying drawings, the utility model provides a locking mechanism 30 for battery box, include: drive assembly 1, two push rods 3 and two locking assemblies 4, drive assembly 1 includes rotatable driving shaft 11 and rotatable connecting driving shaft 11 driven shaft 12, one end of two push rods 3 is rotatablely connected at both ends of driven shaft 12 respectively, two locking assemblies 4 are connected the other end of push rod 3 respectively, and two locking assemblies 4 are used for clamping at both ends of battery box 200 respectively, wherein, when driving shaft 11 rotates clockwise, two locking assemblies 4 are close to and clamp battery box 200, when driving shaft 11 rotates counterclockwise, two locking assemblies 4 are away from and release battery box 200, or, when driving shaft 11 rotates counterclockwise, two locking assemblies 4 are close to and clamp battery box 200, when driving shaft 11 rotates clockwise, two locking assemblies 4 are away from and release battery box 200.

[0054] In the utility model embodiment, rotate driving shaft 11, drive driven shaft 12 to rotate through driving shaft 11, according to the connection of locking assembly 4 and push rod 3 is different, two locking assemblies 4 can move in different directions with push rod 3, that is, drive two locking assemblies 4 to be close to or away from battery box 200 to complete the replacement of battery box 200, not only make battery box 200 more stable but also replace simple and fast.

[0055] In some embodiments, two universal joints 2 are respectively arranged between two push rods 3 and driven shaft 12, one end of two universal joints 2 is rotatablely connected at both ends of driven shaft 12 respectively, and two push rods 3 are respectively hinged at the other end of two universal joints 2.

[0056] In the embodiment, the setting of universal joint 2 can realize angle-variable power transmission, and facilitate the movement of locking assembly 4 to be close to or away from battery box 200.

[0057] In some specific embodiments, the locking mechanism 30 further comprises: a first connecting piece 6, one end of the push rod 3 is provided with a first connecting hole 31, the other end of the universal joint 2 is provided with a second connecting hole 21, and the first connecting piece 6 connects the first connecting hole 31 and the second connecting hole 21.

[0058] In the embodiment, the first connecting member 6 is used to connect the push rod 3 and the universal joint 2. Specifically, the first connecting member 6 is a bolt, so that the connection between the push rod 3 and the universal joint 2 is stable and convenient to disassemble. More specifically, one end of the universal joint 2 is provided with a ninth connecting hole 22, one end of the driven shaft 12 close to the universal joint 2 is provided with an eighth connecting hole 125, the locking mechanism 30 further comprises a fifth connecting member 8, the fifth connecting member 8 connects the ninth connecting hole 22 and the eighth connecting hole 125, so that the driven shaft 12 can drive the universal joint 2 to rotate, and the connection between the universal joint 2 and the driven shaft 12 is stable and detachable.

[0059] In specific embodiments, the rotation of the driving shaft 11 can be controlled by a rotation switch or a button switch. Compared with the existing battery box 200 replacement mode using limiting or pressing, the mode is relatively simple and fast.

[0060] In some embodiments, the driving assembly 1 further comprises a housing 13, the housing 13 is provided with a containing cavity 14, the driving shaft 11 is rotatably connected to the housing 13, and the driven shaft 12 is perpendicular to the driving shaft 11 and rotatably connected to the housing 13; wherein the driving shaft 11 is provided with a gear portion 111, the driven shaft 12 is provided with a worm gear 121, and the gear portion 111 and the worm gear 121 are meshed and connected in the containing cavity 14.

[0061] In the embodiment, the driving shaft 11 and the driven shaft 12 are meshed and connected through the gear portion 111 and the worm gear 121, so that the rotation of the driving shaft 11 drives the rotation of the driven shaft 12, the containing cavity 14 provides space for the connection of the driving shaft 11 and the driven shaft 12, so that the driving assembly 1 occupies less space, thereby saving the occupied space of the locking mechanism 30.

[0062] In specific embodiments, the driven shaft 12 is provided with a protruding portion 122, the worm gear 121 is provided with a recessed portion 123 corresponding to the protruding portion 122, the worm gear 121 is sleeved on the driven shaft 12, and the protruding portion 122 is embedded in the recessed portion 123, so as to facilitate the positioning of the worm gear 121; the driven shaft 12 is further provided with a shaft sleeve 124, the two shaft sleeves 124 are connected to the driven shaft 12 and abut on both sides of the worm gear 121, which helps to fix the worm gear 121 on the driven shaft 12.

[0063] In specific embodiments, the shell 13 is provided with a plurality of shell mounting holes 131 for mounting and fixing the driving assembly 1; secondly, the shell 13 is provided with first bearing holes 132 on both sides of the connection of the driving shaft 11, the driving shaft 11 is rotatably arranged in the two first bearing holes 132, facilitating the rotation of the driving shaft 11, the shell 13 is provided with second bearing holes 133 on both sides of the connection of the driven shaft 12, the driven shaft 12 is rotatably arranged in the two second bearing holes 133, facilitating the rotation of the driven shaft 12, the driving assembly 1 further comprises a first bearing 15 and a second bearing 16, the driving shaft 11 is rotatably connected to the first bearing hole 132 through the first bearing 15, and the driven shaft 12 is rotatably connected to the second bearing hole 133 through the second bearing 16.

[0064] In more specific embodiments, the first bearing hole 132 is provided with a plurality of first threaded holes 134 on the outer periphery, the second bearing hole 133 is provided with a plurality of second threaded holes 135 on the outer periphery, the driving assembly 1 further comprises a first bearing retainer 17 and a second bearing retainer 18, the first bearing retainer 17 is provided with a plurality of third threaded holes 171 corresponding to the first threaded holes 134, the second bearing retainer 18 is provided with a plurality of fourth threaded holes 181 corresponding to the second threaded holes 135, the first threaded holes 134 and the third threaded holes 171 and the second threaded holes 135 and the fourth threaded holes 181 are connected by screws respectively, and the first bearing retainer 17 and the second bearing retainer 18 can limit the movement of the driving shaft 11 and the driven shaft 12, so that the rotation of the driving shaft 11 and the driven shaft 12 is more stable.

[0065] In some embodiments, the locking mechanism 30 further comprises a bracket 5, and the locking assembly 4 is rotatably connected to the bracket 5.

[0066] In this embodiment, the bracket 5 not only provides a rotation fulcrum for the locking assembly 4, but also stabilizes the locking assembly 4, effectively preventing the battery box 200 from colliding.

[0067] In some embodiments, the locking assembly 4 and the bracket 5 are connected in a lever structure, one end of the locking assembly 4 is connected to the other end of the push rod 3, and the other ends of the two locking assemblies 4 are used for clamping at both ends of the battery box respectively.

[0068] In this embodiment, the lever structure makes one end of the locking assembly 4 approach or move away from the push rod 3 under the drive of the push rod 3, and the other end of the locking assembly 4 moves away from or approaches the battery box, converting the axial rotation of the push rod 3 into the clockwise or counterclockwise rotation of the locking assembly 4 with the bracket 5 as the center.

[0069] In some embodiments, the locking assembly 4 comprises a first connecting part 41, a fixing part 42 and a clamping part 43 connected in sequence, the first connecting part 41 is connected to the other end of the push rod 3, the fixing part 42 is rotatably connected to the bracket 5, and the clamping part 43 is bent towards the battery box 200.

[0070] In the embodiment, the first connecting part 41 is used to connect the push rod 3, the fixing part 42 is used to cooperate with the support 5 to provide a better rotation fulcrum for the clamping part 43, and the clamping part 43 is bent towards the battery box 200 to facilitate the locking assembly 4 to complete clamping of the battery box 200. Specifically, the clamping part 43 is bent towards the battery box 200 at an angle of 90 degrees, so that the clamping part 43 clamps the battery box 200 more stably.

[0071] In some embodiments, the other end of the push rod 3 is provided with a screw nut structure, and the screw nut structure is connected to the first connecting part 41.

[0072] In the embodiment, the screw nut structure can convert the rotation of the push rod 3 into the movement of the locking assembly 4 relative to the push rod 3, that is, the movement of the first connecting part 41 close to or away from the push rod 3, and when the first connecting part 41 moves close to or away from the push rod 3, the first connecting part 41 rotates clockwise or counterclockwise with the support 5 as the center.

[0073] In some specific embodiments, the screw nut structure includes a threaded part 32 and a second connecting piece 44, the second connecting piece 44 is connected to the first connecting part 41, the second connecting piece 44 is provided with a third connecting hole 441, and the threaded part 32 is rotatably connected in the third connecting hole 441.

[0074] In the embodiment, the threaded part 32 is rotatably connected in the third connecting hole 441, and the threaded part 32 does not move horizontally when rotating, and the first connecting part 41 moves relative to the threaded part 32, that is, drives the clamping part 43 to approach or away from the battery box 200, thereby completing the replacement of the battery box 200, which not only makes the battery box 200 more stable but also makes the replacement more convenient and fast. Specifically, the first connecting part 41 is provided with a tenth connecting hole 442 for mounting the second connecting piece 44.

[0075] In some embodiments, the locking mechanism 30 further includes a third connecting piece 7, the fixing part 42 is provided with a fourth connecting hole 421, the support 5 is provided with a fifth connecting hole 51, and the third connecting piece 7 is rotatably connected to the fourth connecting hole 421 and the fifth connecting hole 51.

[0076] In the embodiment, the third connecting piece 7 is rotatably connected to the fourth connecting hole 421 and the fifth connecting hole 51, that is, connects the fixing part 42 and the support 5, so that the locking assembly 4 is rotatably connected to the support, so that the clamping part 43 can approach or away from the battery box 200. Specifically, the support 5 is provided with a plurality of support mounting holes 52 for fixing the support 5, so that the support 5 is fixed, so that the locking assembly 4 can stably rotate, and thus the clamping part 43 can approach or away from the battery box 200.

[0077] The utility model also provides a kind of linkage locking device 300, including control piece 10, connecting shaft 20 and multiple sequentially arranged locking mechanism 30 as described above, connecting shaft 20 connects the driving shaft 11 of two adjacent locking mechanism 30, and control piece 10 connects the driving shaft 11 of one locking mechanism 30 in the two ends of multiple locking mechanism 30.

[0078] In the utility model embodiment, rotating control piece 10, i. e. driving shaft 11 can be driven to rotate, to drive connecting shaft 20 to rotate, and further drive multiple locking mechanism 30 of linkage locking device 300 to clamp or release battery box 200, not only make battery box 200 more stable, but also change simple and fast.

[0079] In some embodiments, linkage locking device 300 further includes: fourth connecting piece 40, sixth connecting hole 201 is arranged at both ends of connecting shaft 20, seventh connecting hole 112 is arranged at one end of driving shaft 11 connected with connecting shaft 20, and fourth connecting piece 40 is connected with sixth connecting hole 201 and seventh connecting hole 112.

[0080] In the embodiment, fourth connecting piece 40 is used to connect connecting shaft 20 and driving shaft 11, so that driving shaft 11 can drive connecting shaft 20 to rotate, to realize linkage of multiple locking mechanism 30 clamping or releasing battery box 200.

[0081] The utility model also provides a kind of electric vehicle, including electric vehicle ontology (not shown), frame 100, battery box 200 and linkage locking device 300 as described above, frame 100 is arranged on electric vehicle ontology, linkage locking device 300 is arranged on frame 100, battery box 200 is arranged on frame 100, and multiple locking mechanism 30 of linkage locking device 300 abuts at both sides of battery box 200.

[0082] In the embodiment, when battery box 200 is replaced in electric vehicle, multiple locking mechanism 30 can realize linkage of clamping or releasing battery box 200, not only make battery box 200 more stable, but also make the replacement of battery box 200 simple and fast.

[0083] The above is only specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the utility model, and these modifications or replacements should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of claims.

Claims

1. A locking mechanism for a battery box, characterized by, The application relates to a linkage locking device for an electric vehicle. The linkage locking device comprises a driving assembly, two push rods and two locking assemblies. The driving assembly comprises a driving shaft and a driven shaft. One end of each of the two push rods is rotatably connected to the two ends of the driven shaft. The other end of each of the two push rods is rotatably connected to the two locking assemblies.

2. The lock mechanism for a battery case according to claim 1, characterized by, When the driving shaft rotates clockwise, the two locking assemblies are close to and clamp the battery box. When the driving shaft rotates anticlockwise, the two locking assemblies are away from and release the battery box. The driving assembly further comprises a housing.

3. The lock mechanism for a battery case according to claim 1, characterized by, The driving shaft is rotatably connected to the housing. The driven shaft is perpendicular to the driving shaft and is rotatably connected to the housing.

4. The lock mechanism for a battery case according to claim 3, characterized by, The driving shaft is provided with a gear part.

5. The lock mechanism for a battery case according to claim 4, characterized by, The driven shaft is provided with a worm gear.

6. The lock mechanism for a battery case according to claim 5, wherein The gear part and the worm gear are engaged and connected in the accommodating cavity.

7. The lock mechanism for a battery case according to claim 6, wherein The locking assembly is rotatably connected to a support.

8. A linkage interlock device, characterized by, The locking assembly and the support are connected in a lever structure.

9. The interlocking locking device of claim 8, wherein, The other end of the locking assembly is connected to the other end of the push rod. The other end of the locking assembly is used for clamping the battery box.

10. An electric vehicle, characterized by The locking assembly comprises a first connecting part, a fixing part and a clamping part. The first connecting part is connected to the other end of the push rod. The fixing part is rotatably connected to the support. The clamping part is bent towards the battery box. The other end of the push rod is provided with a screw nut structure. The screw nut structure is connected to the first connecting part. The screw nut structure comprises a threaded part and a second connecting piece. The second connecting piece is connected to the first connecting part. The second connecting piece is provided with a third connecting hole. The threaded part is rotatably connected to the third connecting hole. The linkage locking device comprises a control member, a connecting shaft and a plurality of locking mechanisms. The connecting shaft is connected to the driving shaft of two adjacent locking mechanisms. The control member is connected to the driving shaft of one of the locking mechanisms at the two ends of the plurality of locking mechanisms. The fourth connecting piece is connected to the sixth connecting hole and the seventh connecting hole. The linkage locking device is arranged on the frame of the electric vehicle. The plurality of locking mechanisms of the linkage locking device abut the two sides of the battery box.

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