CN220682129U - Electric vehicle protection device and electric vehicle - Google Patents

Abstract

The application discloses an electric vehicle protection device and an electric vehicle, wherein the electric vehicle protection device comprises protection plates which are oppositely arranged at two sides of the middle part of a vehicle body; the protection plates are connected to the outer sides of longitudinal beams of the electric vehicle and can be turned over relative to the longitudinal beams so that the protection plates can be switched between a horizontal state and a vertical state; the both sides of longeron are provided with the battery package, and when the guard plate was in vertical state, the upper portion edge height of guard plate was not less than the height of the upper surface of battery package, and lower part edge height was not higher than the height of battery package lower surface. Through the arrangement of the protection plates on the two sides, the waterproof and dustproof effects can be achieved in the daily use process, and meanwhile, part of anti-collision and anti-striking effects can be provided; in addition, adopting above-mentioned structure can making things convenient for the side direction to trade the electricity, compare in the current demand that can reduce vertical operating space that trades at the bottom, the electricity that trades to the heavy card of different chassis heights especially chassis lower is convenient, improves and trades electric efficiency.

Description

Electric vehicle protection device and electric vehicle

Technical Field

The application belongs to the electric vehicle field, concretely relates to electric vehicle protector and electric vehicle.

Background

In recent years, with the continuous improvement of environmental protection regulations and the continuous progress of electric automobile technology, electric automobiles are increasingly favored by society, and more electric automobiles enter the market in the fields of passenger vehicles and commercial vehicles. In the conventional electric vehicle structure, a battery pack connected to a vehicle body is an extremely important part of the electric vehicle as a power source thereof. In the prior art, battery packs have typically been electrically connected to other associated structures of the vehicle via electrical connectors to provide electrical power for normal use of the vehicle.

For commercial vehicles with large weight, such as freight trucks, the application of new energy batteries is increasingly wide, in order to occupy less bearing space and inherent structural space of the commercial vehicle, power supply electric control structural components such as a battery pack and the like are arranged at the rear side of the vehicle head or the chassis of the commercial vehicle, but when the structures such as the battery pack and the like are arranged at the side positions of the commercial vehicle, the protection of the structures is a key link for maintaining the operation stability of the commercial vehicle, and meanwhile, the commercial vehicle also has the requirement of changing electricity, so that the convenience of changing the battery pack is the problem to be solved urgently at present on the basis of protecting the battery pack.

It can be seen that certain drawbacks remain with the prior art.

Disclosure of Invention

The application provides an electric vehicle protection device and an electric vehicle, so as to solve at least one of the technical problems.

The technical scheme adopted by the application is as follows:

in a first aspect, the present application provides an electric vehicle guard comprising a guard plate and a drive device, the guard plate being rotatably connected to an electric vehicle and the guard plate having an open state extending in a first direction and a guard state extending in a second direction relative to the electric vehicle;

the driving device is respectively connected with the protection plate and the electric vehicle and is used for driving the protection plate to switch between the opening state and the protection state relative to the electric vehicle.

Through the arrangement of the protection plate, on one hand, the electric vehicle can play a role in preventing water and dust in the daily use process, and meanwhile, a certain anti-collision and anti-striking protection effect can be provided for the battery pack, so that the battery pack is prevented from being damaged and influencing the normal use of the electric vehicle; in addition, adopt above-mentioned structure to be favorable to optimizing the structure of battery package quick change support, reduce energy consumption, reduce cost, can make things convenient for electric vehicle to realize the side direction on the horizontal direction greatly and trade the electricity, compare in current chassis lower part along the demand that vertical direction traded the electricity and can reduce vertical operation space, improve and trade electric efficiency.

As a preferred embodiment of the present application, there is further included an electrical connector provided at a side of the shielding plate facing the electric vehicle, the electrical connector being capable of electrically connecting with a battery pack provided on the electric vehicle in the shielding state;

and/or the electric connector is arranged on one side of the electric vehicle facing the protection plate, and at least one part of the electric connector can be covered by the protection plate in the protection state when the protection plate is projected on the electric vehicle along the horizontal direction.

By adopting the structure, the automatic butt joint of the battery end electric connector and the vehicle end electric connector can be realized through the rotation of the protection plate relative to the electric vehicle and/or the movement of the protection plate relative to the electric vehicle in the battery pack assembly process, so that the electric connection efficiency is greatly improved, and the improvement of the electricity conversion efficiency is facilitated; the structure can fully utilize the installation space of the side part of the protection plate and/or the vehicle longitudinal beam, is beneficial to simplifying the structure of the vehicle chassis and improving the passing rate of the vehicle; moreover, the structure is convenient for the vehicle to change the electricity in a side electricity changing mode, and compared with a bottom electricity changing mode, the structure has looser requirements on electricity changing environment and electricity changing tools, more convenient electricity changing operation and higher electricity changing efficiency.

As a preferred embodiment of the present application, the protection plate has a mounting groove for mounting the electrical connector, a floating connector is further provided inside the mounting groove, and the electrical connector is connected with the floating connector so that the electrical connector can move inside the mounting groove relative to the mounting groove.

The structure can facilitate the positioning and matching of the vehicle-end electric connector and the battery-end electric connector, improve the butting precision between the electric connectors, avoid hard collision damage between the vehicle-end electric connector and the battery-end electric connector, and have simple and compact structure, and are beneficial to improving the electricity exchanging efficiency.

As a preferred embodiment of the present application, the floating connector includes a connection plate and a plurality of springs connected to the connection plate, and the electrical connector is connected to the connection plate; the springs are distributed along the circumferential direction of the connecting plate and connected with the side wall of the mounting groove.

In the scheme, the floating connecting piece is simple and compact in structure, the installation space on the protection plate can be fully utilized, and the cost is saved; the springs are distributed along the circumference of the connecting plate, so that the floating range of the electric connector is increased, and the butting precision between the electric connectors is further improved.

As a preferred embodiment of the present application, the chassis of the electric vehicle has a mounting portion for mounting the electric connector, and at least a part of the mounting portion can be covered by a projection of the shield plate in the horizontal direction on the electric vehicle in the shielded state.

In the above scheme, the installation of the installation portion is convenient for the installation of electric connector and chassis to be fixed, and the installation space on chassis can be fully utilized, so that the connection structure between the battery pack and the electric vehicle is more compact. The protection plate plays a role in preventing water and dust in the use process, so that the electric connector is prevented from being failed to influence the normal use of the electric vehicle.

As a preferred embodiment of the present application, further comprising a bracket connected to the electric vehicle, one side of the shielding plate being rotatably connected to the bracket; the driving device is respectively connected with the protection plate and the support, and drives the protection plate to turn over.

By adopting the scheme, the protection plate is arranged through the support, the installation structure of the protection plate can be conveniently arranged, so that the moving path of the protection plate is optimized, and the shape and the space of the structural part of the protection plate can be installed through the adjustment support, so that the installation position and the moving mode of the protection plate can be conveniently adjusted. The driving mechanism drives the protection plate to turn around the rotating shaft, so that the protection plate is connected stably when being opened and closed.

As a preferred embodiment of the present application, the upper or lower side of the shielding plate is rotatably connected to the bracket.

By adopting the scheme, the upper side of the protection plate is rotationally connected with the support, so that the protection plate can be turned upwards when being opened, the bottom of the inner side space of the protection plate can be empty, articles can be moved in and out by utilizing the bottom space, and transportation carriers such as a trolley can be conveniently operated by the bottom.

The downside and the support rotation of guard plate are connected to make the guard plate when opening, wholly lie in the downside, can make the guard plate upside have great operating space this moment.

As a preferred embodiment of the present application, the driving device is a gravity driving device, and comprises a bearing plate for bearing the battery pack and a link mechanism connected with the bearing plate and the bracket respectively; the bearing plate is arranged at the lower end of the connecting rod mechanism along the vertical direction;

when the bearing plate bears the battery pack, the bearing plate moves from the first position to the second position relative to the bracket under the action of the gravity of the battery pack, and the protection plate is converted from the open state to the protection state; the first position is higher than the second position.

The structure can drive the protection plate to rotate by utilizing the gravity of the battery pack so as to realize the protection of the battery pack, thereby fully utilizing the gravity of the battery pack, avoiding additionally arranging a driving mechanism and being beneficial to reducing energy consumption and cost; the bearing plate can be used as a part of a gravity driving mechanism to conduct the gravity of the battery pack to realize the overturning of the protection plate, and can also be directly used as a part of a battery pack bearing device to bear the battery pack after the protection plate is overturned in place, so that one-plate dual-purpose of the bearing plate is realized; in addition, the bearing plate and the connecting rod mechanism in the scheme are simple in structure, convenient to set, simple and reliable, and cost is saved.

As a preferred embodiment of the present application, the protection plate is rotatably connected with the bracket through a rotation shaft, and the end part of the rotation shaft is provided with a rotation shaft gear; the upper end of the connecting rod mechanism is provided with a connecting rod gear which can rotate along with the connecting rod mechanism and can be matched and meshed with the rotating shaft gear; the connecting rod mechanism and the protection plate are in transmission fit through the cooperation of the rotating shaft gear and the connecting rod gear.

By adopting the structure, the gear is meshed and driven, and the transmission is accurate, the structure is simple and compact, and the cost is low.

As a preferred embodiment of the present application, the driving device comprises a driving member and a driving connection structure, and the driving member is in driving fit with the protection plate and the support through the driving connection structure.

In the scheme, the driving piece drives the protection plate to turn over relative to the support, so that the action of the protection plate is more efficient, the action in-place rate is high, the loading and unloading operation of the battery pack is facilitated, and the electricity conversion efficiency is improved; and adopt above-mentioned structure can make full use of the installation space on support and the guard plate, avoid setting up actuating mechanism on the vehicle longeron and lead to vehicle chassis structure complicacy to influence vehicle passing rate.

As a preferred embodiment of the present application, the driving connection structure is a connection seat respectively provided on the protection plate and the bracket; the driving piece is rotationally connected with the protection plate and/or the connecting seat on the support; preferably, the driving piece is an electric cylinder, an air cylinder or a hydraulic cylinder;

or, the driving connection structure comprises a driving gear set matched with the driving piece, and the driving gear set comprises a first gear arranged on the protection plate and a second gear arranged on the bracket; the first gear is meshed with the second gear, and the driving piece is arranged on the protection plate and matched with the first gear in a transmission manner, or the driving piece is arranged on the support and matched with the second gear in a transmission manner; preferably, the driving member is a driving motor.

By adopting the scheme, the overturning of the protection plate is conveniently realized through the rotation connection of the driving piece and the connecting seat, the overturning efficiency is improved, and the electricity conversion efficiency is further improved. The reaction speed of the electric cylinder, the air cylinder and the hydraulic cylinder is high, so that the connection efficiency of the electric connector and the battery pack is improved; the electric cylinder, the air cylinder, the hydraulic cylinder and the connecting seat are simple in structure, convenient to set and low in use cost;

the switching action of the protection plate between the opening state and the protection state is more linear and more accurate through the matching of the driving piece and the driving gear set, and the problems that the protection plate, the electric connector, the battery pack, the support and other related connecting structures are damaged due to the overlarge action of the protection plate are avoided.

As a preferred embodiment of the present application, the present application further includes a waterproof structure including a fixed portion connected to the guard plate or the side member and a movable portion connected to the fixed portion and movable with respect to the fixed portion; the electric connector is positioned in the fixed part and the movable part, and the movable part is provided with an opening from which the electric connector can extend.

When the battery package is connected with the electric connector, waterproof construction can play waterproof protection's effect, adopts above-mentioned structure in addition can promote the battery package and connect efficiency and then can promote the conversion efficiency with the electric connector.

As a preferred embodiment of the present application, the fixed portion and the movable portion are connected by a flexible rubber sleeve; when the protection plate is in a protection state, the movable part can move relative to the fixed part along the horizontal direction; and/or the opening is provided with an elastic sealing gasket.

By adopting the structure, the movable part, the fixed part and the flexible rubber sleeve form a complete whole, so that the tightness between the movable part and the fixed part is improved, the tightness of the waterproof structure is further improved, liquid, dust and the like are prevented from entering the protection cavity through a gap between the movable part and the fixed part, and the joint between the movable part and the fixed part can be prevented from being sealed by additionally arranging the sealing element; the flexible rubber sleeve is convenient to form, low in cost and capable of improving the adaptability of the flexible rubber sleeve to reciprocating folding along with the movement of the movable part by adopting the wavy structure, and the service life of the flexible rubber sleeve is prolonged.

In a second aspect, the present application provides an electric vehicle comprising an electric vehicle guard as described above.

Through adopting above-mentioned technical scheme, electric vehicle protector provides certain anticollision, prevents beating guard action for the battery package to be favorable to avoiding the battery package impaired normal use that influences electric vehicle, can greatly make things convenient for electric vehicle to realize the side direction and trade the electricity, compare in driven bottom and trade the restriction that the electric operation is to the vehicle bottom space that can effectually avoid, also can avoid the bottom to trade the electricity simultaneously to vehicle chassis space restriction, be favorable to abundant reason vehicle chassis's installation space.

As a preferred embodiment of the present application, the electric vehicle guard is provided on at least one side of a side member of the electric vehicle.

As a preferred embodiment of the present application, the protection plate shields at least part of the side surface of the battery pack in the protection state; when the protection plate is in the open state, the protection plate avoids a passage for the battery pack to enter and exit from a battery pack accommodating area of the electric vehicle.

In the above-mentioned scheme, can provide sufficient business turn over space for the battery package from the battery package accommodation area of side direction business turn over electric vehicle when the guard plate is in open condition, the guard plate is in the protection state and also can play good protection waterproof effect in the lateral part of battery package after the battery package installation is fixed, also adopts above-mentioned scheme promptly can realize the side direction and trades the electricity, and the requirement to trading electric environment and trading electric equipment is more relaxed in the bottom mode of trading the electricity, trades electric operation more convenient, trades electric efficiency higher.

Due to the adoption of the technical scheme, the beneficial effects obtained by the application are as follows:

the electric vehicle protection device is simple in structure, convenient to set and low in use cost. When the battery pack is replaced, the electric vehicle can protect the parts such as the battery pack at the side of the electric vehicle through the electric vehicle protection device. Can realize the combination with the side direction structure of trading, simplify the connection structure between battery package and the automobile body, promoted the efficiency of side direction trading greatly. Meanwhile, the structure is also beneficial to simplifying the structure of the vehicle chassis, and the complex structure of the vehicle chassis is avoided to influence the passing rate of the vehicle.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 is a schematic diagram of a mating structure of an electric vehicle protection device and an electric vehicle;

FIG. 2 is a schematic illustration of an exemplary electric vehicle protective device;

FIG. 3 is a schematic structural view of a gravity driving device;

fig. 4 is a schematic view of the structure of the shielding plate in an opened state;

fig. 5 is a schematic structural view of the shielding plate at another view angle in an opened state;

FIG. 6 is a schematic illustration of another example electric vehicle protective device;

FIG. 7 is a schematic diagram of a driving member and a driving connection structure;

FIG. 8 is a schematic diagram of the mating structure of the floating connector and the mounting slot;

fig. 9 is a schematic structural view of a waterproof structure;

fig. 10 is a schematic view of another view of the waterproof structure.

Wherein,

the protection plate 1, the connection plate 11, the spring 12, the installation groove 13, the flanging 14 and the reinforcing plate 15;

2, a bracket;

3, a battery pack;

41 gravity driving device, 411 link mechanism, 412 vertical rod, 413 horizontal rod, 414 reinforcing rod, 415 bearing plate, 416 link gear, 417 butt plate, 418 lug, 419 groove, 42 driving piece, 43 rotating shaft, 431 rotating shaft gear;

5 an electrical connector;

61 fixed part, 62 movable part, 63 flexible rubber sleeve, 64 elastic sealing gasket;

and 7, longitudinal beams.

Detailed Description

In order to more clearly illustrate the general concepts of the present application, a detailed description is provided below by way of example in connection with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced otherwise than as described herein, and thus the scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that, in the case of no conflict, the embodiments of the present application and features in the embodiments may be combined with each other.

In addition, in the description of the present application, it should be understood that the terms "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like indicate an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Referring to fig. 1-10, the embodiment discloses an electric vehicle protection device, and also discloses an electric vehicle using the same, wherein the electric vehicle protection device is connected to a side part of a vehicle body of the electric vehicle, so that the electric vehicle can be greatly convenient to realize lateral power conversion, compared with a traditional bottom power conversion mode, the restriction of a vehicle bottom space to power conversion operation can be effectively avoided, and meanwhile, the restriction of bottom power conversion to a vehicle chassis space can be avoided, thereby being beneficial to fully reason the installation space of the vehicle chassis.

Specifically, the electric vehicle protection device comprises a protection plate 1 and a driving device, wherein the protection plate 1 is rotatably connected to an electric vehicle, and the protection plate 1 has an open state extending along a first direction and a protection state extending along a second direction relative to the electric vehicle; the driving device is respectively connected with the protection plate 1 and the electric vehicle and is used for driving the protection plate 1 to switch between the open state and the protection state relative to the electric vehicle.

As a preferred embodiment of the present application, referring to fig. 1 to 5, in the protected state, the upper surface height of the protection plate 1 is not lower than the upper surface height of the battery pack 3, and/or the lower surface height of the protection plate 1 is not higher than the lower surface height of the battery pack 3. Preferably, the height of the upper surface of the protection plate 1 is not lower than the height of the upper surface of the battery pack 3, and at the same time, the height of the lower surface of the protection plate 1 is not higher than the height of the lower surface of the battery pack 3, so that the protection area of the protection plate 1 to the battery pack 3 in the vertical direction can be enlarged, the protection range of the protection plate 1 in the vertical direction can be ensured to completely cover the battery pack 33 and the connection structure between the battery pack 33 and the electric connector 55, and the influence of vibration on the protection effect of the protection plate 1 when the vehicle runs can be reduced or eliminated.

Further, as shown in fig. 4 and 5, the peripheral edge portion of the protection plate 1 has a flange 14 facing the direction of the battery pack 3, and a side of the protection plate 1 facing the battery pack 3 is provided with a plurality of reinforcing plates 15 arranged alternately.

Compared with a straight edge, the arrangement of the flange 14 can enable the protection plate 1 to better surround the battery pack 3, so that better water-retaining, dust-proof and other protection effects are achieved, and the whole structure is more attractive; the reinforcing plate 15 can strengthen the overall structural strength of the protection plate 1, so that the protection plate 1 has higher anti-collision capability and the protection performance is improved.

Through the arrangement of the protection plate 1, on one hand, the electric vehicle can play a role in preventing water and dust in the daily use process, and meanwhile, a certain anti-collision and anti-striking protection effect can be provided for the battery pack 3, so that the battery pack 3 is prevented from being damaged to influence the normal use of the electric vehicle; in addition, adopt above-mentioned structure to be favorable to optimizing the structure of 3 quick change supports 2 of battery package, reduce energy consumption, reduce cost, can make things convenient for electric vehicle to realize the side direction on the horizontal direction greatly and trade the electricity, compare in current under the chassis lower part along the demand that vertical direction traded the electricity can reduce vertical operation space, improve and trade electric efficiency.

Further, referring to fig. 8, the electric vehicle guard further includes an electrical connector 5, the electrical connector 5 being provided at a side of the guard plate 1 facing the electric vehicle, the electrical connector 5 being capable of electrically connecting with a battery pack 3 provided on the electric vehicle in the guard state.

By adopting the structure, the automatic butt joint of the battery end electric connector 5 and the vehicle end electric connector 5 can be realized through the rotation of the protection plate 1 relative to the electric vehicle and/or the movement of the battery pack 3 relative to the electric vehicle in the assembly process, so that the electric connection efficiency is greatly improved, and the improvement of the electric conversion efficiency is facilitated; the structure can fully utilize the installation space of the side part of the protection plate 1 and/or the side part of the vehicle longitudinal beam 7, thereby being beneficial to simplifying the structure of the vehicle chassis and improving the passing rate of the vehicle; moreover, the structure is convenient for the vehicle to change the electricity in a side electricity changing mode, and compared with a bottom electricity changing mode, the structure has looser requirements on electricity changing environment and electricity changing tools, more convenient electricity changing operation and higher electricity changing efficiency.

In other embodiments, the electrical connector 5 is disposed on a side of the electric vehicle facing the shielding plate 1, and a projection of the shielding plate 1 in the horizontal direction on the electric vehicle in the shielding state can cover at least a part of the electrical connector 5.

In one example, referring to fig. 8, the shielding plate 1 has a mounting groove 13 for mounting the electrical connector 5, a floating connector is further provided inside the mounting groove 13, and the electrical connector 5 is connected to the floating connector such that the electrical connector 5 can move inside the mounting groove 13 with respect to the mounting groove 13. Preferably, the floating connection comprises a connection plate 11 and a plurality of springs 12 connected to the connection plate 11, the electrical connector 5 being connected to the connection plate 11; the plurality of springs 12 are arranged along the circumferential direction of the connection plate 11 and connected with the side walls of the mounting groove 13. This makes it possible to fully utilize the installation space on the shield plate 1. In the butt joint process, the floating range of the electric connector 5 is improved, the butt joint precision of the electric connector 5 and the battery pack 3 is further improved, parts are easy to find, and the cost is saved. It should be noted that the structure of the floating connector, the connection manner and the connection structure of the floating connector and the mounting groove 13 are not limited in particular, and may be the structure of the above example, or may be other different structures. For example, the springs 12 may be disposed around the connecting plate 11 as shown in fig. 6, or diagonally, that is, at four corners of the connecting plate 11, and the number of the springs 12 is not particularly limited.

The structure can facilitate the positioning and matching of the vehicle-end electric connector 5 and the battery-end electric connector 5, improve the butting precision between the electric connectors 5, avoid the hard collision damage of the vehicle-end electric connector 5 and the battery-end electric connector 5, and has simple and compact structure, thereby being beneficial to improving the electricity conversion efficiency.

In another example, referring to fig. 9, the chassis of the electric vehicle has a mounting portion for mounting the electric connector 5, and the projection of the shield plate 1 in the horizontal direction on the electric vehicle in the shielded state can cover at least a part of the mounting portion. In the scheme, the installation part is convenient for the installation and fixation of the electric connector 5 and the chassis, and the installation space of the chassis can be fully utilized, so that the connection structure between the battery pack 3 and the electric vehicle is more compact; and can cover installation department and electric connector 5 through the guard plate 1's protection scope, be favorable to guaranteeing the normal operation use of battery package 3 and electric vehicle.

Further, referring to fig. 1-7, the electric vehicle further comprises a bracket 2, wherein the bracket 2 is connected to a longitudinal beam 7 of the electric vehicle; one side of the protection plate 1 is rotatably connected with the support 2 through a rotating shaft 43; the driving device is respectively connected with the protection plate 1 and the support 2, and drives the protection plate 1 to turn up and down along the rotating shaft 43.

The protection plate 1 is arranged through the support 2, so that the installation structure of the protection plate 1 can be conveniently arranged to facilitate optimizing the moving path of the protection plate 1, and the installation position and the moving mode of the protection plate 1 can be conveniently adjusted by adjusting the shape and the space of the structural part of the support installation protection plate 1. The driving mechanism drives the protection plate 1 to turn around the rotating shaft 43, so that the protection plate 1 is stably connected when being opened and closed.

In this embodiment, as shown in fig. 1, the upper side of the protection plate 1 is rotatably connected to the support 2 through the rotating shaft 43, so that the protection plate 1 can be turned upwards when being opened, at this time, the bottom of the inner space of the protection plate 1 can be set empty, objects can be moved in and out by using the bottom space, and transportation vehicles such as a trolley can be conveniently operated from the bottom.

In an alternative embodiment, the underside of the shield plate 1 is rotatably connected to the support frame 2 such that the shield plate 1 is turned upside down when opened, and the whole is located on the underside, in which case a larger operating space can be provided on the upper side of the shield plate 1.

Here, the structure of the driving device and the connection manner of the driving device with the protection plate 1 and the bracket 2 are not limited, and any one of the following examples may be adopted:

in one example, referring to fig. 1-3, the driving device is a gravity driving device 41, comprising a bearing plate 415 for bearing the battery pack 3 and a link mechanism 411 connected to the bearing plate and the bracket 2, respectively; the bearing plate 415 is disposed at the lower end of the link mechanism 411 in the vertical direction; the pressure receiving plate 415 has a first position when the battery pack 3 is not carried and a second position when the battery pack 3 is carried. When the protection plate 1 is in an open state, that is, a horizontal state, a sufficient access space can be provided between the protection plate 1 and the support 2 for the battery pack 3 to laterally access the battery pack accommodating area of the support 2, in one operation example, the battery pack 3 laterally accesses the battery pack accommodating area of the support 2 in a horizontal direction, at this time, the battery pack 3 is located at the upper part of the bearing plate 415 and the bearing plate 415 is in a first position with a relatively high height, then the battery pack 3 descends in a vertical direction to be in locking fit with the support 2 so that the bearing plate 415 carries the battery pack 3, at this time, the bearing plate 415 moves from the first position with the relatively high height to a second position with the relatively low height under the action of gravity of the battery pack 3, during this process, the bearing plate 415 drives the link mechanism 411 to move relative to the support 2, and the movement of the link mechanism 411 can be transmitted to the rotating shaft 43 through the engagement transmission of the link gear 416 and the rotating shaft gear 431, the rotating shaft 43 drives the protection plate 1 to rotate relative to the support, the protection plate 1 starts to be converted from the open state to the protection state, and at the same time, the protection plate 1 is switched to the protection state when the battery pack 3 is locked with the support 2.

Preferably, the protection plate 1 is rotatably connected with the support 2 through a rotating shaft 43, and a rotating shaft gear 431 is arranged at the end part of the rotating shaft 43; the upper end of the link mechanism 411 is provided with a link gear 416 which can rotate along with the link mechanism 411 and can be matched and meshed with the rotating shaft gear 431; the link mechanism 411 and the protection plate 1 are in transmission fit through the fit of the rotating shaft gear 431 and the link gear 416, and the gears are meshed in transmission, so that the transmission is accurate, the structure is simple and compact, and the cost is low.

In one example, referring to fig. 3, the linkage 411 includes two cross bars 413 disposed parallel to each other and two uprights 412 disposed parallel to each other, and the cross bars 413 are hinged end to end with the uprights 412, and the bearing plate 415 is disposed below the bottom cross bars 413. Preferably, referring to fig. 4, the link mechanism 411 further includes a reinforcing rod 414, the reinforcing rod 414 is disposed at the middle of the upright rods 412 and both ends of the reinforcing rod 414 are hinged to the two upright rods 412, respectively. By adopting the structure, the cross rod 413 and the vertical rod 412 are mutually supported, so that the structural stability of the whole link mechanism 411 is guaranteed, and the structural stability and the structural strength of the link mechanism 411 can be further improved through the arrangement of the reinforcing rod 414.

As a preferred embodiment of the present application, the electrical connector docking device in the present application further includes a docking reinforcing structure, as shown with reference to fig. 3, including a docking plate 417 connected to the bracket 2 and a protrusion 418 connected to the shielding plate 1, the docking plate 417 being disposed in a horizontal direction and an upper portion of the docking plate 417 being provided with a groove 419 corresponding to the protrusion 418; when the protection plate 1 is in the protection state and the bearing plate 415 is in the second position, the protruding block 418 extends into the groove 419 along the vertical direction to be in limit fit with the groove 419. In the above-described scheme, the stability of the connection structure between the shielding plate 1 and the bracket 2, particularly in the horizontal direction, is further enhanced by restricting the relative horizontal displacement between the shielding plate 1 and the bracket 2 by the engagement of the protrusion 418 and the groove 419.

Further, with continued reference to fig. 3, the rim of the recess 419 has a guiding surface and the boss 418 has a mating surface that conforms to the guiding surface. The cooperation of the guide surface and the matching surface can facilitate the limit cooperation of the lug 418 and the groove 419, and the lug 418 is separated from the groove 419, thereby improving the assembly efficiency

In the example, the structure can drive the protection plate 1 to rotate by utilizing the gravity of the battery pack 3 to realize the electric connection between the electric connector 5 and the battery pack 3, so that the gravity of the battery pack 3 is fully utilized, a driving mechanism is avoided, the structure of the quick-change bracket 2 of the battery pack 3 is favorably optimized, the energy consumption is reduced, and the cost is reduced; the bearing plate can be used as a part of a gravity driving mechanism to conduct the gravity of the battery pack 3 to realize the overturning of the protection plate 1, and can also be directly used as a part of a battery pack 3 bearing device to bear the battery pack 3 after the protection plate 1 is overturned in place, so that one-plate dual-purpose of the bearing plate 415 is realized; in addition, the bearing plate and the link mechanism 411 in the above scheme have simple structure, convenient arrangement, simplicity and reliability and cost saving.

In another example, referring to fig. 6 and 7, the driving device includes a driving member 42 and a driving connection structure, and the driving member 42 is in driving engagement with the shielding plate 1 and the bracket 2 through the driving connection structure. As a preferable aspect in this example, the driving connection structure is connection seats respectively provided on the shielding plate 1 and the bracket 2; the driving piece 42 is rotatably connected with the protection plate 1 and/or the connecting seat on the support 2; preferably, the driving member 42 is an electric cylinder, an air cylinder or a hydraulic cylinder, and in this scheme, the turning of the protection plate 1 is conveniently realized by the rotation connection of the driving member 42 and the connecting seat, so that the turning efficiency is improved, and the electricity exchanging efficiency is further improved. The reaction speed of the electric cylinder, the air cylinder and the hydraulic cylinder is high, so that the connection efficiency of the electric connector 5 and the battery pack 3 is improved; the electric cylinder, the air cylinder, the hydraulic cylinder and the connecting seat are simple in structure, convenient to set and low in use cost;

as another preferable aspect in this example, the driving connection structure includes a driving gear set mated with the driving member 42, the driving gear set including a first gear provided on the shielding plate 1 and a second gear provided on the bracket 2; the first gear is meshed with the second gear, and the driving piece 42 is arranged on the protection plate 1 and is in transmission fit with the first gear, or the driving piece 42 is arranged on the support 2 and is in transmission fit with the second gear; preferably, the driving member 42 is a driving motor. In this scheme, through the cooperation of driving piece 42 and drive gear train convenience make guard plate 1 switch the action more linear and the action is more accurate between open state and protection state, avoid appearing guard plate 1 action too big and lead to guard plate 1, electric connector 5, battery package 3, support 2 and other relevant connection structure collision impaired scheduling problem's emergence.

In the two examples, the driving piece 42 drives the protection plate 1 to turn over relative to the support 2, so that the action of the protection plate 1 is more efficient and the action in-place rate is high, the loading and unloading operation of the battery pack 3 is facilitated, and the electricity conversion efficiency is improved; and adopt above-mentioned structure can make full use of the installation space on support 2 and the guard plate 1, avoid setting up actuating mechanism on vehicle longeron 7 and lead to vehicle chassis structure complicacy to influence the vehicle rate of passing. Of course, the above examples are only two preferred embodiments of the present application, and the driving device may have more different structures, and the driving device may be connected to the protection plate 1 and the bracket 2 in more different manners.

Further, as shown with reference to fig. 9 and 10, the waterproof structure further includes a fixed portion 61 connected to the guard plate 1 or the side member 7, and a movable portion 62 connected to the fixed portion 61 and movable with respect to the fixed portion 61; the electrical connector 5 is located inside the fixed portion 61 and the movable portion 62 has an opening through which the electrical connector 5 protrudes.

This makes it possible for the waterproof structure to enclose the connection end of the electrical connector 5 and the battery pack inside the movable portion 62 when the battery pack 3 is connected with the electrical connector 5, thereby effectively functioning as waterproof protection.

Specifically, the fixed portion 61 and the movable portion 62 are connected by a flexible rubber sleeve 63; when the shielding plate is in the first state, i.e., the vertical state, the movable portion 62 can move in the horizontal direction with respect to the fixed portion 61. By adopting the structure, the movable part 62, the fixed part 61 and the flexible rubber sleeve 63 form a complete whole, so that the tightness between the movable part 62 and the fixed part 61 is improved, the tightness of the waterproof structure is further improved, liquid, dust and the like are prevented from entering the protection cavity through the gap between the movable part 62 and the fixed part 61, and the joint between the movable part 62 and the fixed part 61 can be prevented from being sealed by additionally arranging a sealing element; and the flexible rubber sleeve 63 is convenient to form and low in cost, and the adaptability of the flexible rubber sleeve 63 to reciprocating folding along with the movement of the movable part 62 can be improved by adopting a wave-shaped structure, so that the service life of the flexible rubber sleeve is prolonged. Further, as shown in fig. 9 and 10, an elastic sealing gasket 64 is provided on the side of the movable portion 62 away from the fixed portion 61, and the elastic sealing gasket 64 is used for sealing and buffering the connection structure between the electric connector 5 and the battery pack 3 when the electric connector 5 is electrically connected to the battery pack 3. The elastic sealing gasket 64 can play a role in sealing to improve the waterproof performance, and can also eliminate or reduce the relative displacement between the protection plate and the quick-change support 2 caused by mechanical vibration in the running process of the vehicle, so that the deflection of the protection plate and the loosening between the electric connector 5 and the battery pack 3 are avoided.

As a preferred embodiment of the present application, an electric vehicle protection device is provided on at least one side of the longitudinal beam 7 of the electric vehicle. In one example, referring to fig. 1, the electric vehicle protection device is provided on both sides of a side member 7 of the electric vehicle in the width direction, and both sides of the side member 7 of the electric vehicle are provided with brackets 2, the brackets 2 being simultaneously used to carry the battery pack 3; in the horizontal direction, the protection plate 1 is rotatably arranged at one end of the support 2 away from the longitudinal beam 7. The support 2 is used for installing the protection plate 1 and the battery pack 3, so that the installation structure is simplified, and the reliability of electricity replacement is improved; the battery packs 3 are respectively arranged on two sides of the longitudinal beam 7, and the battery packs 3 can be replaced on two sides of the longitudinal beam 7 at the same time, so that the electricity replacing efficiency is improved. With continued reference to fig. 1, the protection plate 1 shields at least part of the side surface of the battery pack 3 in the protection state. Referring to fig. 7, the protection plate 1 is in the opened state, and the protection plate 1 is prevented from moving into and out of the passage of the battery pack 3 in the battery pack 3 accommodation area of the electric vehicle. In the above-mentioned scheme, can provide sufficient business turn over space for battery package 3 from the battery package 3 accommodation area of side direction business turn over electric vehicle when guard plate 1 is in the open state, the guard plate 1 is in the protection state and can realize electric connector 5 and battery package 3's electric connection and also can play good protection waterproof effect after battery package 3 installs fixedly in the lateral part of battery package 3, also adopt above-mentioned scheme to realize side direction to trade the electricity promptly, the requirement to changing the electricity environment and changing the electricity equipment is more loose in the bottom mode of changing the electricity, it is more convenient to change the electricity operation, it is higher to change electric efficiency.

The application is not described in detail by using or referring to the prior art.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.

Claims (14)

1. An electric vehicle guard comprising a guard plate and a drive device, the guard plate being rotatably connected to an electric vehicle and the guard plate having an open state extending in a first direction and a guard state extending in a second direction relative to the electric vehicle;

the driving device is respectively connected with the protection plate and the electric vehicle and is used for driving the protection plate to switch between the opening state and the protection state relative to the electric vehicle.

2. The electric vehicle protective device of claim 1, further comprising an electrical connector disposed on a side of the protective panel facing the electric vehicle, the electrical connector being capable of making an electrical connection with a battery pack disposed on the electric vehicle in the protective state;

or, the electric connector is disposed on a side of the electric vehicle facing the shielding plate, and a projection of the shielding plate on the electric vehicle in the horizontal direction in the shielding state can cover at least a part of the electric connector.

3. The electric vehicle protective device of claim 2, wherein the shield plate has a mounting slot for mounting the electrical connector, a floating connector being further provided inside the mounting slot, the electrical connector being connected to the floating connector such that the electrical connector is movable inside the mounting slot relative to the mounting slot.

4. The electric vehicle protection device of claim 3, wherein the floating connection comprises a connection plate and a plurality of springs connected to the connection plate, the electrical connector being connected to the connection plate; the springs are distributed along the circumferential direction of the connecting plate and connected with the side wall of the mounting groove.

5. The electric vehicle guard of claim 2, wherein the chassis of the electric vehicle has a mounting portion for mounting the electrical connector, and wherein a projection of the guard plate in the electric vehicle in the horizontal direction in the guard state can cover at least a portion of the mounting portion.

6. The electric vehicle guard of claim 1, further comprising a bracket coupled to the electric vehicle, one side of the guard plate being rotatably coupled to the bracket; the driving device is respectively connected with the protection plate and the support, and drives the protection plate to turn over.

7. The electric vehicle guard of claim 6, wherein an upper or lower side of the guard plate is rotatably connected to the bracket.

8. The electric vehicle protective apparatus of claim 6, wherein the drive means is a gravity drive means comprising a pressure plate for carrying the battery pack and a linkage mechanism connected to the pressure plate and the bracket, respectively; the bearing plate is arranged at the lower end of the connecting rod mechanism along the vertical direction;

when the bearing plate bears the battery pack, the bearing plate moves from a first position to a second position relative to the support under the action of the gravity of the battery pack, and the protection plate is converted from the open state to the protection state; the first position is higher than the second position.

9. The electric vehicle guard of claim 8, wherein the guard plate is rotatably connected to the bracket through a rotation shaft and an end of the rotation shaft is provided with a rotation shaft gear; the upper end of the connecting rod mechanism is provided with a connecting rod gear which can rotate along with the connecting rod mechanism and can be matched and meshed with the rotating shaft gear; the connecting rod mechanism and the protection plate are in transmission fit through the cooperation of the rotating shaft gear and the connecting rod gear.

10. The electric vehicle guard of claim 6, wherein the drive means includes a drive member and a drive connection structure, the drive member being in driving engagement with the guard plate and the bracket by the drive connection structure.

11. The electric vehicle protective apparatus of claim 10, wherein the drive connection structure is a connection seat provided on the fender and the stand, respectively; the driving piece is rotationally connected with the protection plate and/or the connecting seat on the support;

or, the driving connection structure comprises a driving gear set matched with the driving piece, and the driving gear set comprises a first gear arranged on the protection plate and a second gear arranged on the bracket; the first gear is meshed with the second gear, and the driving piece is arranged on the protection plate and matched with the first gear in a transmission mode, or the driving piece is arranged on the support and matched with the second gear in a transmission mode.

12. An electric vehicle comprising an electric vehicle protection device according to any one of claims 6-11.

13. The electric vehicle of claim 12, characterized in that the electric vehicle guard is provided on at least one side of a longitudinal beam of the electric vehicle.

14. The electric vehicle of claim 12, characterized in that the shield plate shields at least a portion of the side of the battery pack when in the shielded state; when the protection plate is in the open state, the protection plate avoids a passage for the battery pack to enter and exit from a battery pack accommodating area of the electric vehicle.