Frame assembly and battery replacement vehicle

Abstract

The utility model relates to the technical field of battery replacement, and provides a vehicle frame assembly and a battery replacement vehicle, the vehicle frame assembly comprises a vehicle frame main body and at least two bottom support assemblies, the vehicle frame main body is provided with a plurality of limiting pieces, each bottom support assembly is rotatably connected to the vehicle frame main body, and every two bottom support assemblies are connected through a driving element; the bottom support assembly comprises a bottom support body, a first locking mechanism and a second locking mechanism, the first locking mechanism and the second locking mechanism are suitable for moving along with the bottom support body so as to be synchronously switched between an unlocking state and a locking state, in the locking state, the first locking mechanism and the second locking mechanism abut against the corresponding limiting pieces, in the unlocking state, the first locking mechanism and the second locking mechanism abut against the corresponding limiting pieces, and in the locking state, the first locking mechanism and the second locking mechanism abut against the corresponding limiting pieces. And the first locking mechanism and the second locking mechanism are both released from abutting against the corresponding limiting pieces. All the locking mechanisms move along with the bottom support body so as to be switched between the locking state and the unlocking state, driving sources such as air cylinders do not need to be arranged on all the locking mechanisms, and therefore the locking mechanisms are low in manufacturing cost and low in failure rate.

Description

Technical Field

[0001] The utility model relates to the technical field of battery replacement, and in particular to a frame assembly and a battery replacement vehicle. Background Art

[0002] With the promotion of new energy technologies, how to provide power to batteries with low power in a timely and effective manner has become a mainstream issue. In order to effectively solve the above problems, the concept of battery swapping has emerged, which is to separate the vehicle body and the battery, and when the battery is low on power, you can go to the battery swap station to replace it with a fully charged battery.

[0003] In order to reliably lock the battery box for battery replacement on the battery replacement vehicle, the related art uses a locking mechanism to lock the battery box for battery replacement to fix the battery box, or unlock the battery box to facilitate disassembly and replacement of the battery box.

[0004] Although the above-mentioned locking mechanism can realize the locking and unlocking functions of the battery box, most locking mechanisms need to adopt structures such as cylinders as additional driving sources to control the locking mechanism to perform locking and unlocking actions. This not only has a high manufacturing cost, but also a high failure rate. For example, the gas used to supply the cylinder is easily lost or blocked during pipeline transmission, which may cause the locking mechanism to fail. Utility Model Content

[0005] A first aspect of the utility model provides a frame assembly to solve the above-mentioned technical defects in the prior art. Each locking mechanism moves with the base body to switch between a locked state and an unlocked state. Each locking mechanism does not need to be provided with a driving source such as a cylinder, so that the locking mechanism not only has a low manufacturing cost but also a low failure rate.

[0006] A second aspect of the utility model provides a battery-swap vehicle.

[0007] A first aspect of the utility model provides a frame assembly, comprising a frame body and at least two bottom bracket assemblies, wherein the frame body is provided with a plurality of limiting members.

[0008] Each of the base support assemblies is rotatably connected to the frame body, and every two of the base support assemblies are connected by a driving element; the base support assembly includes a base support body, a first locking mechanism and a second locking mechanism, the first locking mechanism is arranged on one side of the base support body, and the second locking mechanism is arranged on the other side of the base support body; the first locking mechanism and the second locking mechanism are both suitable for moving with the base support body to synchronously switch between an unlocked state and a locked state; in the locked state, the first locking mechanism and the second locking mechanism both abut against the corresponding limiting member; in the unlocked state, the first locking mechanism and the second locking mechanism both release the abutment with the corresponding limiting member.

[0009] According to the frame assembly provided by the utility model, the first locking mechanism includes:

[0010] A first swing arm is rotatably connected to the base body, wherein a first end of the first swing arm forms a first limiting portion, and the first limiting portion is suitable for abutting against the corresponding limiting member; a second end of the first swing arm forms a first clamping portion, and the first clamping portion is suitable for clamping to the frame of the battery box;

[0011] A first elastic member, wherein a first end of the first elastic member is connected to the base body, and a second end of the first elastic member is connected to a position of the first swing arm close to the first clamping portion.

[0012] According to the frame assembly provided by the utility model, the first swing arm includes a first main arm and a first clamping arm;

[0013] The first main arm is rotatably connected to the base support body, and the first end of the first main arm forms the first limiting portion; the second end of the first main arm is connected to the first clamping arm and is arranged at an angle to the first clamping arm, and the first clamping portion is formed by the first main arm and the first clamping portion.

[0014] According to the frame assembly provided by the utility model, the second locking mechanism includes:

[0015] A second swing arm is rotatably connected to the base body, wherein the first end of the second swing arm forms a connecting portion; the second end of the second swing arm forms a second clamping portion, and the second clamping portion is suitable for clamping to the frame of the battery box;

[0016] A first connecting rod is rotatably connected to the base support body and is spaced apart from the second swing arm. A first end of the first connecting rod forms a second limiting portion, and the second limiting portion is suitable for abutting against the corresponding limiting member. A second end of the first connecting rod is rotatably connected to the connecting portion.

[0017] A second elastic member, wherein a first end of the second elastic member is connected to the base body, and a second end of the second elastic member is connected to the first connecting rod.

[0018] According to the frame assembly provided by the utility model, the second swing arm includes a second main arm, a connecting arm and a second clamping arm;

[0019] The second main arm is rotatably connected to the base support body, and the first end of the second main arm is connected to the connecting arm; the second end of the second main arm is connected to the second clamping arm, and the second clamping arm and the connecting arm are arranged at an angle to each other with the second main arm, and the connecting arm and the second clamping arm are arranged on two sides of the second main arm facing away from each other.

[0020] According to the frame assembly provided by the utility model, the second locking mechanism also includes:

[0021] A second connecting rod, wherein the second connecting rod is located between the connecting arm and the first connecting rod, and is rotatably connected to the connecting arm and the first connecting rod respectively.

[0022] The frame assembly provided by the utility model further includes a first limiting assembly and a second limiting assembly, wherein the first limiting assembly is arranged on one side of the bottom support body, and the second limiting assembly is arranged on the other side of the bottom support body;

[0023] In the locked state, one of the first limiting assembly and the second limiting assembly limits the base body;

[0024] In the unlocked state, the other of the first limiting assembly and the second limiting assembly limits the base body.

[0025] According to the frame assembly provided by the utility model, the first limiting assembly includes a limiting block and a matching block, and the limiting block and the matching block abut against each other to limit the position;

[0026] One of the limiting block and the matching block is arranged on the bottom bracket body, and the other of the limiting block and the matching block is arranged on the frame body.

[0027] According to the frame assembly provided by the utility model, the second limiting assembly includes a limiting block and a matching block, and the limiting block and the matching block abut against each other to limit the position;

[0028] One of the limiting block and the matching block is arranged on the bottom bracket body, and the other of the limiting block and the matching block is arranged on the frame body.

[0029] A second aspect of the utility model provides a battery-swap vehicle, comprising a frame assembly as described in any one of the items.

[0030] The frame assembly provided by the utility model is characterized in that a limiting piece is arranged on the frame body, and the bottom bracket assembly is rotatably connected to the frame body, and every two bottom bracket assemblies are connected through a driving element, wherein the bottom bracket assembly comprises a bottom bracket body, a first locking mechanism and a second locking mechanism, the first locking mechanism is arranged on one side of the bottom bracket body, and the second locking mechanism is arranged on the other side of the bottom bracket body; the first locking mechanism and the second locking mechanism are both suitable for moving with the bottom bracket body to synchronously switch between an unlocked state and a locked state, in the locked state, the first locking mechanism and the second locking mechanism abut against the corresponding limiting piece, and in the unlocked state, the first locking mechanism and the second locking mechanism release the abutment with the corresponding limiting piece. This is equivalent to, through the movement of the base body, making the corresponding limit members abut and cooperate with the first locking mechanism and the second locking mechanism to achieve locking, and making the corresponding limit members release the abutment with the first locking mechanism and the second locking mechanism to achieve unlocking. Each locking mechanism moves with the base body to switch between the locked state and the unlocked state. Each locking mechanism does not need to be equipped with a driving source such as a cylinder, so that the locking mechanism not only has a low manufacturing cost but also a low failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 It is one of the structural schematic diagrams of the frame assembly provided by the embodiment of the utility model.

[0033] Figure 2 yes Figure 1 A cross-sectional view of a single bottom bracket assembly of the frame assembly is shown.

[0034] Figure 3 This is the second structural schematic diagram of the frame assembly provided by the embodiment of the utility model.

[0035] Figure 4 yes Figure 3 A cross-sectional view of a single bottom bracket assembly of the frame assembly is shown.

[0036] Figure 5 yes Figure 4 Enlarged view of part A in the middle.

[0037] Figure 6 yes Figure 4 Enlarged view of part B in the middle.

[0038] Reference numerals:

[0039] 100, frame body; 110, limiter;

[0040] 200, bottom bracket assembly; 210, bottom bracket body; 220, first locking mechanism; 221, first swing arm; 2211, first main arm; 2212, first clamping arm; 222, first elastic member; 230, second locking mechanism; 231, second swing arm; 2311, second main arm; 2312, connecting arm; 2313, second clamping arm; 232, first connecting rod; 233, second elastic member; 234, second connecting rod;

[0041] 300, driving element;

[0042] 400, first limiting assembly; 410, limiting block; 420, matching block; 500, second limiting assembly. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0045] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0047] Figure 1 It is one of the structural schematic diagrams of the frame assembly provided by the embodiment of the utility model. Figure 2 yes Figure 1 A cross-sectional view of a single bottom bracket assembly of the frame assembly is shown. Figure 3 This is the second structural schematic diagram of the frame assembly provided by the embodiment of the utility model. Figure 4 yes Figure 3 A cross-sectional view of a single bottom bracket assembly of the frame assembly is shown. Figure 5 yes Figure 4 Enlarged view of part A in the middle. Figure 6 yes Figure 4 Enlarged view of part B in the middle.

[0048] See also Figures 1 to 6 The embodiment of the utility model provides a frame assembly, which is arranged on a battery-swap vehicle and used to install a battery box. The frame assembly includes a frame body 100 and at least two bottom bracket assemblies 200.

[0049] The frame body 100 can be the chassis of the battery-swap vehicle, or it can be a load-bearing body mainly used to install the bottom bracket assembly 200. The frame body 100 is generally a rectangular structure, and a plurality of limit members 110 are arranged on the frame body 100, and the plurality of limit members 110 are used to cooperate with the following locking mechanisms for locking.

[0050] Each base support assembly 200 is rotatably connected to the frame body 100, and every two base support assemblies 200 are connected via a driving element 300. The base support assembly 200 includes a base support body 210, a first locking mechanism 220, and a second locking mechanism 230. The first locking mechanism 220 is arranged on one side of the base support body 210, and the second locking mechanism 230 is arranged on the other side of the base support body 210; wherein the first locking mechanism 220 and the second locking mechanism 230 are both suitable for moving with the base support body 210 to synchronously switch between an unlocked state and a locked state. In the locked state, the first locking mechanism 220 and the second locking mechanism 230 abut against the corresponding limiting member 110, and in the unlocked state, the first locking mechanism 220 and the second locking mechanism 230 release the abutment with the corresponding limiting member 110.

[0051] It can be understood that the frame assembly provided by the embodiment of the utility model is provided with a limit member 110 on the frame body 100, and the base assembly 200 is rotatably connected to the frame body 100, and every two base assemblies 200 are connected by a driving element 300, wherein the base assembly 200 includes a base body 210, a first locking mechanism 220 and a second locking mechanism 230, the first locking mechanism 220 is arranged on one side of the base body 210, and the second locking mechanism 230 is arranged on the other side of the base body 210; the first locking mechanism 220 and the second locking mechanism 230 are both suitable for moving with the base body 210 to synchronously switch between the unlocked state and the locked state; in the locked state, the first locking mechanism 220 and the second locking mechanism 230 abut the corresponding limit member 110; in the unlocked state, the first locking mechanism 220 and the second locking mechanism 230 are released from the abutment with the corresponding limit member 110. This is equivalent to, through the movement of the base support body 210, the corresponding limit member 110 is brought into contact with the first locking mechanism 220 and the second locking mechanism 230 to achieve locking, and the corresponding limit member 110 is released from the contact with the first locking mechanism 220 and the second locking mechanism 230 to achieve unlocking. Each locking mechanism moves with the base support body to switch between a locked state and an unlocked state. Each locking mechanism does not need to be provided with a driving source such as a cylinder, so that the locking mechanism not only has a low manufacturing cost but also a low failure rate.

[0052] At the same time, since the number of components of each locking mechanism is reduced, not only can the assembly be simplified, but also the space occupied by each locking mechanism can be reduced, and the structural layout is more compact.

[0053] Continue reading Figures 1 to 4 In some embodiments of the present invention, the first locking mechanism 220 includes a first swing arm 221 and a first elastic member 222 .

[0054] The first swing arm 221 is rotatably connected to the base body 210, and the first end of the first swing arm 221 forms a first limiting portion, which is used to abut against the corresponding limiting member 110, and the second end of the first swing arm 221 forms a first clamping portion, which is used to clamp onto the frame of the battery box to lock the battery box.

[0055] The first end of the first elastic member 222 is connected to the base body 210 , and the second end of the first elastic member 222 is connected to the first swing arm 221 at a position close to the first clamping portion.

[0056] See also Figure 3 When the battery-swapping vehicle is swapping batteries, due to the limitation of the battery swapping space, each two bottom bracket assemblies 200 extend to both sides of the frame body 100 under the action of the driving element 300 to exceed the width direction of the frame body 100 to provide avoidance space for battery swapping. At this time, under the action of the driving element 300, the bottom bracket body 210 deflects around the rotation connection point with the frame body 100, and the first limiting portion of the first swing arm 221 moves away from the limiting member 110 to release the limitation of the limiting member 110 on the first swing arm 221, and the first elastic member 222 restores the elastic deformation to pull the first swing arm 221 to the unlocking position, so that the first swing arm 221 unlocks the battery box.

[0057] See also Figure 1 When the battery swapping vehicle has finished swapping batteries and the swapped vehicle is in driving state, every two bottom bracket assemblies 200 will shrink back under the action of the driving element 300, so that the bottom bracket assemblies 200 will not exceed the width direction of the frame body 100, so as to avoid the battery swapping vehicle being affected by the excessive width of the vehicle body during driving. At this time, under the action of the driving element 300, the bottom bracket body 210 deflects around the rotation connection point with the frame body 100, and the first limiting portion of the first swing arm 221 abuts against the limiting member 110 to realize the limitation of the limiting member 110 on the first swing arm 221, and the first elastic member 222 undergoes elastic deformation to realize the locking of the battery box by the first swing arm 221.

[0058] Continue reading Figure 2 and Figure 4 In some embodiments of the present invention, the first swing arm 221 includes a first main arm 2211 and a first clamping arm 2212 .

[0059] The first main arm 2211 is rotatably connected to the base body 210, and the first end of the first main arm 2211 forms a first limiting portion suitable for abutting against the limiting member 110. The second end of the first main arm 2211 is connected to the first clamping arm 2212. The first main arm 2211 and the first clamping arm 2212 are arranged at an angle to each other. The first clamping portion is formed by the first main arm 2211 and the first clamping portion. The first clamping portion is used to clamp onto the frame of the battery box to lock the battery box.

[0060] The angle between the first main arm 2211 and the first clamping arm 2212 can be 90°, which is equivalent to the first main arm 2211 and the first clamping arm 2212 being arranged perpendicular to each other. Of course, the angle between the first main arm 2211 and the first clamping arm 2212 can be greater than 90° or less than 90°. When the angle between the first main arm 2211 and the first clamping arm 2212 increases, the angle of deflection of the bottom support body 210 under the action of the driving element 300 is adaptively increased, and when the angle between the first main arm 2211 and the first clamping arm 2212 decreases, the angle of deflection of the bottom support body 210 under the action of the driving element 300 is adaptively reduced. The specific setting is selected according to the actual use situation.

[0061] Continue reading Figures 1 to 4 In some embodiments of the present invention, the second locking mechanism 230 includes a second swing arm 231 , a first connecting rod 232 and a second elastic member 233 .

[0062] The second swing arm 231 is rotatably connected to the base body 210, the first end of the second swing arm 231 forms a connecting portion, and the second end of the second swing arm 231 forms a second clamping portion, which is used to clamp onto the frame of the battery box to lock the battery box.

[0063] The first connecting rod 232 is rotatably connected to the base body 210 and is spaced apart from the second swing arm 231. The first end of the first connecting rod 232 forms a second limiting portion, which is suitable for abutting against the corresponding limiting member 110. The second end of the first connecting rod 232 is rotatably connected to the connecting portion.

[0064] A first end of the second elastic member 233 is connected to the base body 210 , and a second end of the second elastic member 233 is connected to the first connecting rod 232 .

[0065] See also Figure 3 When the battery-swapping vehicle is swapping batteries, due to the limitation of the battery-swapping space, every two bottom bracket assemblies 200 extend to both sides of the frame body 100 under the action of the driving element 300 to exceed the width direction of the frame body 100 to provide avoidance space for battery swapping.

[0066] At this time, under the action of the driving element 300, the base body 210 deflects around the rotation connection point with the frame body 100, and the second limiting portion of the first connecting rod 232 moves away from the corresponding limiting member 110 to release the restriction of the limiting member 110 on the first connecting rod 232, and the second elastic member 233 restores elastic deformation to make the second swing arm 231 and the first connecting rod 232 approach each other, and the first connecting rod 232 pulls the second swing arm 231 to the unlocking position, so that the second swing arm 231 unlocks the battery box.

[0067] See also Figure 1 When the battery swapping vehicle finishes swapping batteries and is in driving state, every two bottom bracket assemblies 200 will retract under the action of the driving element 300 so that the bottom bracket assemblies 200 will not exceed the width direction of the frame body 100, thereby avoiding the battery swapping vehicle being affected in its operation due to the excessive width of the vehicle body during driving.

[0068] At this time, under the action of the driving element 300, the base body 210 deflects around the rotation connection point with the frame body 100, and the second limiting portion of the first connecting rod 232 abuts against the limiting member 110 to realize the limitation of the first connecting rod 232 by the limiting member 110. The first connecting rod 232 pulls the second swing arm 231 to deflect so as to be connected to the frame of the battery box, so that the second swing arm 231 locks the battery box. At this time, the first elastic member 222 undergoes elastic deformation, that is, the second elastic member 233 has the ability to restore elastic deformation.

[0069] In this embodiment, by setting the first connecting rod 232, the first connecting rod 232 is rotatably connected to the base body 210 and is spaced apart from the second swing arm 231. The first end of the first connecting rod 232 forms a second limiting portion, and the second limiting portion is suitable for abutting against the corresponding limiting member 110; the second end of the first connecting rod 232 is rotatably connected to the connecting portion of the second swing arm 231, so that the first connecting rod 232 realizes a reversing effect in the second locking mechanism 230, and can realize the locking and unlocking states of the second swing arm 231 synchronized with the first swing arm 221.

[0070] When the base body 210 moves under the action of the driving element 300, the first swing arm 22 and the second swing arm 231 disposed opposite to the base body 210 can achieve synchronous locking and synchronous unlocking. That is, when each two base assemblies 200 extend toward the two sides of the frame body 100 or retract from the two sides of the frame body 100 under the action of the driving element 300, the base body 210 drives the first locking mechanism 220 and the second locking mechanism 230 disposed opposite to each other to move, so as to achieve synchronous locking and unlocking of the first locking mechanism 220 and the second locking mechanism 230.

[0071] The first elastic member 222 and the second elastic member 233 are both tension springs and other components, and the driving element 300 can be a linear driving component such as an electric cylinder, an electric push rod, an oil cylinder or a pneumatic cylinder.

[0072] Continue reading Figure 2 and Figure 4 In some embodiments of the present invention, the second swing arm 231 includes a second main arm 2311 , a connecting arm 2312 and a second clamping arm 2313 .

[0073] The second main arm 2311 is rotatably connected to the base body 210, and the first end of the second main arm 2311 is connected to the second clamping arm 2313; the second end of the second main arm 2311 is connected to the connecting arm 2312, and the second main arm 2311 is arranged at an angle to the second clamping arm 2313 and the connecting arm 2312, and the connecting arm 2312 and the second clamping arm 2313 are arranged on two sides of the second main arm 2311 facing away from each other, that is, the setting directions of the connecting arm 2312 and the second clamping arm 2313 are opposite.

[0074] Among them, the angle between the second main arm 2311 and the second clamping arm 2313 can be 90°, which is equivalent to the second main arm 2311 and the second clamping arm 2313 being arranged perpendicular to each other. Of course, the angle between the second main arm 2311 and the second clamping arm 2313 can be greater than 90° or less than 90°. The angle between the second clamping arm 2313 and the connecting arm 2312 can be less than 90°. The specific setting can be determined according to the actual use environment.

[0075] Continue reading Figure 2 and Figure 4 In some embodiments of the present invention, the second locking mechanism 230 further includes a second connecting rod 234, which is located between the connecting arm 2312 and the first connecting rod 232 and is rotatably connected to the connecting arm 2312 and the first connecting rod 232 respectively.

[0076] The second connecting rod 234 is provided to increase the swing amplitude of the second swing arm 231 , thereby facilitating the first swing arm 221 and the second swing arm 231 to achieve synchronous locking and unlocking operations.

[0077] It should be noted that, in the embodiments of the present utility model, refer to Figure 2 When the first locking mechanism 220 and the second locking mechanism 230 are both in the locked state, the first limiting portion of the first swing arm 221 in the first locking mechanism 220 abuts against the corresponding limiting member 110, and the corresponding limiting member 110 mechanically limits the first swing arm 221 to form a first mechanical limiting point Q1. By observing the positional relationship between the first swing arm 221 and the corresponding limiting member 110, it is determined whether the battery box is locked in place. The second limiting portion of the first connecting rod 232 in the second locking mechanism 230 abuts against the corresponding limiting member 110, and the corresponding limiting member 110 mechanically limits the first connecting rod 232 to form a second mechanical limiting point Q2. By observing the positional relationship between the first connecting rod 232 and the corresponding limiting member 110, it is determined whether the battery box is locked in place.

[0078] See also Figure 4When both the first locking mechanism 220 and the second locking mechanism 230 are in the unlocked state, the first limiting portion of the first swing arm 221 in the first locking mechanism 220 moves away from the corresponding limiting member 110 until the first swing arm 221 abuts against the frame of the base body 210 to form a third mechanical limiting point Q3, and whether the battery box is unlocked in place is determined by observing the positional relationship between the first swing arm 221 and the frame of the base body 210. The second limiting portion of the first connecting rod 232 in the second locking mechanism 230 moves away from the corresponding limiting member 110 until the connecting arm 2312 abuts against the frame of the base body 210 to form a fourth mechanical limiting point Q4, and whether the battery box is unlocked in place is determined by observing the positional relationship between the connecting arm 2312 and the frame of the base body 210.

[0079] Continue reading Figure 1 and Figure 2 , and also see Figure 5 and Figure 6 In some embodiments of the present invention, the frame assembly further includes a first limiting assembly 400 and a second limiting assembly 500 . The first limiting assembly 400 is disposed on one side of the bottom support body 210 , and the second limiting assembly 500 is disposed on the other side of the bottom support body 210 .

[0080] When the first locking mechanism 220 and the second locking mechanism 230 are both in the locked state, one of the first limiting assembly 400 and the second limiting assembly 500 limits the bottom bracket body 210. When the first locking mechanism 220 and the second locking mechanism 230 are both in the unlocked state, the other of the first limiting assembly 400 and the second limiting assembly 500 limits the bottom bracket body 210.

[0081] The embodiment of the utility model sets one of the first limiting assembly 400 and the second limiting assembly 500 to limit the base body 210 in the unlocked state, and sets the other of the first limiting assembly 400 and the second limiting assembly 500 to limit the base body 210 in the locked state. By limiting the base body 210, the positions of the first locking mechanism 220 and the second locking mechanism 230 in the unlocked state or the locked state can be further restricted to improve the reliability of the first locking mechanism 220 and the second locking mechanism 230 and avoid the first locking mechanism 220 and the second locking mechanism 230 from over-travel operation.

[0082] When the base body 210 extends and retracts under the action of the driving element 300, the base body 210 is limited by the first limiting assembly 400 and the second limiting assembly 500 set at the corresponding position, so that the first locking mechanism 220 and the second locking mechanism 230 can be locked and unlocked more reliably in the absence of a power source.

[0083] Furthermore, the first limiting assembly 400 and the second limiting assembly 500 both include a limiting block 410 and a matching block 420, and the limiting block 410 and the matching block 420 abut against each other for limiting. One of the limiting block 410 and the matching block 420 is disposed on the bottom bracket body 210, and the other of the limiting block 410 and the matching block 420 is disposed on the frame body 100.

[0084] That is, a wedge-shaped limiting block 410 may be provided on the bottom support body 210 , and a wedge-shaped matching block 420 may be provided on the frame body 100 , and the limiting block 410 and the matching block 420 cooperate with each other to limit the position.

[0085] In the embodiment of the utility model, when the first locking mechanism 220 and the second locking mechanism 230 are both in the locked state, the first locking mechanism 220 and the second locking mechanism 230 are both accommodated in the battery box, and there is no need to set up space outside the battery box to accommodate each locking mechanism, thereby improving the compactness of the structure.

[0086] In some embodiments of the utility model, the frame assembly further includes a detection component (not shown in the figure) and a position determination component (not shown in the figure), the detection component is mounted on at least one of the first swing arm 221 and the stopper 110 corresponding to the first swing arm 221, and is used to generate a position signal when the battery box is completely locked to the target position. The detection component is also mounted on at least one of the first connecting rod 232 and the stopper 110 corresponding to the first connecting rod 232, and is used to generate a position signal when the battery box is completely locked to the target position.

[0087] The position determination component is electrically connected to the detection component, and is used to receive the position signal, and determine that the battery box is locked in place based on the position signal. The position determination component can be a component such as a buzzer or a voice player. For example, when the position determination component is a buzzer, after the buzzer receives the position signal generated by the detection component, it emits a sound such as a "beep" to prompt the user that the battery box is locked in place.

[0088] In addition, the position determination component can also be electrically connected to a control device, which is used to receive a position signal of the first swing arm 221 or the first connecting rod 232 detected by the detection component, and issue a control instruction based on the position signal. The control device includes but is not limited to a PLC controller, a single chip microcomputer, a CPU, an MCU and other controllers.

[0089] In the embodiment of the utility model, a detection component and a position determination component are provided so that the detection component detects the position signal of the swing arm, and the position determination component receives the position signal detected by the detection component, and determines whether the battery box is installed in place based on the position signal to improve the accuracy of battery replacement.

[0090] The detection component may be a position sensor, which may be any one of a contact sensor and a proximity sensor. The detection component detects the position of the first swing arm 221 or the first connecting rod 232, and converts the detected position signal into an output signal to feed back to the position determination component or the control device, and the position determination component prompts the staff to make adjustments.

[0091] When the detection component is a contact sensor, the contact sensor may include a travel switch, a two-dimensional matrix position sensor, etc. When the detection component is a proximity sensor, the proximity sensor may include an electromagnetic, photoelectric, differential transformer, eddy current, capacitor, reed switch or Hall, etc.

[0092] The utility model also provides a battery-swap vehicle, which includes an electric car, an engineering vehicle or engineering machinery, such as a heavy truck, a repair vehicle, a forklift, an excavator, a crane, a bulldozer, a road roller, a paver, etc. The battery-swap vehicle includes a frame assembly of any of the above items, and the frame assembly is used to install a battery box.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A frame assembly, characterized in that: include: The frame body is provided with a plurality of limiting members; At least two base support assemblies, each of which is rotatably connected to the frame body, and every two of the base support assemblies are connected by a driving element; the base support assembly includes a base support body, a first locking mechanism and a second locking mechanism, the first locking mechanism is arranged on one side of the base support body, and the second locking mechanism is arranged on the other side of the base support body; the first locking mechanism and the second locking mechanism are both suitable for moving with the base support body to synchronously switch between an unlocked state and a locked state; in the locked state, the first locking mechanism and the second locking mechanism both abut against the corresponding limiting member; in the unlocked state, the first locking mechanism and the second locking mechanism both release the abutment with the corresponding limiting member.

2. The frame assembly according to claim 1, characterized in that: The first locking mechanism comprises: A first swing arm is rotatably connected to the base body, wherein a first end of the first swing arm forms a first limiting portion, and the first limiting portion is suitable for abutting against the corresponding limiting member; a second end of the first swing arm forms a first clamping portion, and the first clamping portion is suitable for clamping to the frame of the battery box; A first elastic member, wherein a first end of the first elastic member is connected to the base body, and a second end of the first elastic member is connected to a position of the first swing arm close to the first clamping portion.

3. The frame assembly according to claim 2, characterized in that: The first swing arm includes a first main arm and a first clamping arm; The first main arm is rotatably connected to the base support body, and the first end of the first main arm forms the first limiting portion; the second end of the first main arm is connected to the first clamping arm and is arranged at an angle to the first clamping arm, and the first clamping portion is formed by the first main arm and the first clamping portion.

4. The frame assembly according to claim 1, characterized in that: The second locking mechanism comprises: A second swing arm is rotatably connected to the base body, wherein the first end of the second swing arm forms a connecting portion; the second end of the second swing arm forms a second clamping portion, and the second clamping portion is suitable for clamping to the frame of the battery box; A first connecting rod is rotatably connected to the base support body and is spaced apart from the second swing arm. A first end of the first connecting rod forms a second limiting portion, and the second limiting portion is suitable for abutting against the corresponding limiting member. A second end of the first connecting rod is rotatably connected to the connecting portion. A second elastic member, wherein a first end of the second elastic member is connected to the base body, and a second end of the second elastic member is connected to the first connecting rod.

5. The frame assembly according to claim 4, characterized in that: The second swing arm comprises a second main arm, a connecting arm and a second clamping arm; The second main arm is rotatably connected to the base support body, and the first end of the second main arm is connected to the connecting arm; the second end of the second main arm is connected to the second clamping arm, and the second clamping arm and the connecting arm are arranged at an angle to each other with the second main arm, and the connecting arm and the second clamping arm are arranged on two sides of the second main arm facing away from each other.

6. The frame assembly according to claim 5, characterized in that: The second locking mechanism also includes: A second connecting rod, wherein the second connecting rod is located between the connecting arm and the first connecting rod, and is rotatably connected to the connecting arm and the first connecting rod respectively.

7. The frame assembly according to any one of claims 1 to 6, characterized in that: It also includes a first limiting component and a second limiting component, wherein the first limiting component is arranged on one side of the base body, and the second limiting component is arranged on the other side of the base body; In the locked state, one of the first limiting assembly and the second limiting assembly limits the base body; In the unlocked state, the other of the first limiting assembly and the second limiting assembly limits the base body.

8. The frame assembly according to claim 7, characterized in that: The first limiting assembly comprises a limiting block and a matching block, wherein the limiting block and the matching block abut against each other for limiting; One of the limiting block and the matching block is arranged on the bottom bracket body, and the other of the limiting block and the matching block is arranged on the frame body.

9. The frame assembly according to claim 7, characterized in that: The second limiting assembly comprises a limiting block and a matching block, wherein the limiting block and the matching block abut against each other for limiting; One of the limiting block and the matching block is arranged on the bottom bracket body, and the other of the limiting block and the matching block is arranged on the frame body.

10. A battery-swap vehicle, characterized in that: A frame assembly comprising any one of claims 1 to 9.

Images