阅读说明：本技术 升降传送装置及换电站 (Lifting conveying device and battery replacing station ) 是由 李楠 田小涛 丁习坤 刘俊 马永跃 林海岩 于 2019-02-19 设计创作，主要内容包括：本申请提供一种升降传送装置,用于电池包的装卸和中转,其中,所述升降传送装置包括：至少一个升降传送单元,用于承载电池包,所述升降传送单元包括升降机构和配属于与所述升降机构相关联的水平传送机构,所述升降机构由独立的驱动组件进行驱动；以及升降机构安装板,用于支承所述升降传送单元,并且所述升降机构及其驱动组件沿升降方向布置于升降机构安装板和所述水平传送机构之间。(The application provides a lift conveyer for the loading and unloading and the transfer of battery package, wherein, lift conveyer includes: at least one lifting and conveying unit for carrying the battery pack, wherein the lifting and conveying unit comprises a lifting mechanism and a horizontal conveying mechanism associated with the lifting mechanism, and the lifting mechanism is driven by an independent driving assembly; and a lifting mechanism mounting plate for supporting the lifting transfer unit, and the lifting mechanism and its driving assembly are disposed between the lifting mechanism mounting plate and the horizontal transfer mechanism in a lifting direction.)

1. A lifting and conveying device for loading, unloading and transferring battery packs is characterized by comprising:

at least one lifting and conveying unit for carrying the battery pack, wherein the lifting and conveying unit comprises a lifting mechanism and a horizontal conveying mechanism which is assigned to the lifting mechanism, and the lifting mechanism is driven by an independent driving assembly; and

and a lifting mechanism mounting plate for supporting the lifting transfer unit, and the lifting mechanism and a driving assembly thereof are disposed between the lifting mechanism mounting plate and the horizontal transfer mechanism in a lifting direction.

2. A lifting conveyor as claimed in claim 1, characterized in that the horizontal conveyor means are arranged in groups at intervals in the conveying direction above the associated lifting means.

3. The elevating conveyor assembly as defined in claim 2 wherein said elevating conveyor units are symmetrically carried laterally side by side on either side of said battery pack.

4. The elevating conveyor assembly as defined in claim 3 wherein said elevating conveyor units are symmetrically disposed side by side in a lateral direction on both sides of said elevating mechanism mounting plate.

5. The elevating conveyor as in claim 1 wherein said elevating mechanism is configured as a jack scissor.

6. A lifting conveyor as in claim 5 wherein said jack scissor lift mechanism comprises a first frame, a second frame and a drive assembly, wherein each of said first frame and said second frame comprises a first rod, a second rod and a pivotal connection, wherein one end of said first rod and one end of said second rod are connected by said pivotal connection, and wherein said drive assembly is drivingly connected to said pivotal connections of said first frame and said second frame, respectively, and wherein moving said pivotal connections causes said first rod and said second rod to rotate relative to each other about said pivotal connections to cause said lift mechanism to perform said lifting and lowering movements.

7. The elevating conveyor as claimed in claim 6 wherein the drive assembly of the elevating mechanism includes a lead screw and a lead screw nut, wherein the lead screw is drivingly connected to the pivotal connection of the first support or the second support and is drivingly connected to the pivotal connection of the second support or the first support through the lead screw nut.

8. A lifting conveyor as claimed in claim 6 or 7, wherein said lifting mechanism is further provided with at least one stop member mounted adjacent to said pivotal connection of said first support and/or said second support for preventing movement of a drive assembly input of a drive assembly drivingly connected to said drive assembly when said lifting mechanism is raised.

9. The elevating conveyor as claimed in claim 1, wherein said elevating mechanism further comprises at least one elevating guide member, said elevating guide member being dispersedly mounted at said elevating mechanism mounting plate and extending in the direction of elevating movement while guiding elevating movement in positive connection with said horizontal conveyor.

10. The elevating conveyor as claimed in claim 9, wherein each of said elevating conveyor units includes at least one elevating height sensor disposed along an extending direction of said elevating guide member and detecting a height of the elevating mechanism moving in the elevating direction.

11. The elevating conveyor as claimed in claim 10 wherein said elevator mechanism drive assembly is configured to include a servo motor, said servo motor adjusting the elevation of said elevator mechanism based on signals detected by said elevation sensor.

12. The elevating conveyor as in claim 11 wherein said elevating mechanism is driven by a drive selected from the group consisting of a belt drive, a chain drive, a lead screw drive and a rack drive.

13. A lifting conveyor as in claim 2 wherein said horizontal conveyor is configured as a motorized roller conveyor, and wherein said motorized roller conveyor includes a plurality of motorized rollers disposed along the conveying direction.

14. The elevating conveyor as claimed in claim 2, wherein each of said elevating conveyor units includes at least one conveying position sensor, said conveying position sensors being arranged at intervals in the conveying direction at the horizontal conveying mechanism mounting plate and detecting whether the battery pack reaches a designated position.

15. The elevating conveyor as claimed in claim 2, wherein said elevating conveyor unit further comprises a stopper member disposed at one end of the elevating conveyor unit in the conveying direction and restricting the position of the battery pack in one direction.

16. A battery swapping station for a battery pack of an electric vehicle, characterized in that the swapping station comprises a lifting conveyor according to any of claims 1 to 15.

Technical Field

The application relates to the loading, unloading and transferring of a battery pack in the field of battery replacement of electric vehicles, in particular to a lifting and conveying device of the battery pack and a battery replacement station.

Background

The battery replacement is a way for quickly supplementing energy to an electric automobile, and specifically means that a power battery of the automobile is taken down through a battery replacement device, and another group of power batteries is replaced. The battery replacement station is a place for replacing the power of the power battery of the automobile. One of the main challenges of battery replacement technology is the positioning of battery replacement equipment with a vehicle and a battery. This is because: after the positioning is finished, the battery replacing equipment can execute the battery replacing action to finish the separation and installation of the battery and the vehicle, namely finish the locking and unlocking operation of a fastening device connected between the battery and the vehicle; the position of each automobile entering the battery replacement station is not consistent, the battery replacement equipment needs to have the capability of coping with the uncertainty, if the initial positioning of the automobile relative to the battery replacement station is completed in the modes of a guide rail, a tire pushing mode and the like in design, the positioning often cannot reach higher positioning precision due to factors such as manufacturing tolerance of an automobile body and a battery, different tire pressures, chassis suspension deviation and the like, and the success rate and the reliability of battery replacement cannot be guaranteed.

There is a lifting and conveying device for an electric vehicle during installation, disassembly or transfer of a battery pack. The lifting and conveying device has a relatively complex structure, which results in high installation cost and maintenance cost on one hand, and also limits the high speed which can be achieved when the battery pack is installed, disassembled or transferred due to the occupied installation space on the other hand, so that the requirements of installing, disassembling or transferring the battery pack at a lower or higher height can not be met.

Disclosure of Invention

The invention aims to provide a lifting conveying device which has a simple structure and occupies less installation space, can flexibly adapt to the loading and unloading and transferring height of various battery packs, and can flexibly control and adjust.

Therefore, the following technical scheme is provided in the application.

According to an aspect of the present application, there is provided a lifting and transferring device for loading, unloading and transferring a battery pack, wherein the lifting and transferring device includes: at least one lifting and conveying unit for carrying the battery pack, wherein the lifting and conveying unit comprises a lifting mechanism and a horizontal conveying mechanism which is assigned to the lifting mechanism, and the lifting mechanism is driven by an independent driving assembly; and a lifting mechanism mounting plate for supporting the lifting transfer unit, and the lifting mechanism and its driving assembly are disposed between the lifting mechanism mounting plate and the horizontal transfer mechanism in a lifting direction.

In this case, the assignment between the lifting means and the horizontal transport means is understood to mean that one or more horizontal transport means are arranged above each lifting means. It should be noted that the motions of the horizontal transfer mechanism and the lifting mechanism may be performed cooperatively according to different application scenarios, or may be performed independently. For example, when the battery is loaded or unloaded from the electric vehicle, it may be provided that the horizontal transfer mechanism is kept stationary and only the elevating mechanism performs the elevating movement to detach or mount the battery pack from or to the electric vehicle. In the case of transporting and transporting the battery pack, it may be provided that the elevating mechanism is kept stable and only the horizontal transport mechanism is activated, thereby enabling stable transportation of the battery pack. Of course, in certain application scenarios, such as when transporting battery packs to a stack, both the horizontal transport mechanism and the lift mechanism need to be moved simultaneously to transport the battery packs to the desired location in the stack.

Alternatively, in the lifting conveyor, the horizontal conveyor means are arranged in groups spaced apart in the conveying direction above the associated lifting means.

Alternatively, in the elevation transport device, the elevation transport units are symmetrically carried on both sides of the battery pack side by side in a lateral direction.

Alternatively, in the elevation transport apparatus, the elevation transport units are symmetrically arranged side by side in a lateral direction on both sides of the elevation mechanism mounting plate.

Optionally, in the lifting conveyor, the lifting mechanism is configured as a jack scissor.

Optionally, in the lifting and conveying device, the jack-scissor lifting mechanism comprises a first support, a second support and a transmission assembly, wherein the first support and the second support respectively comprise a first rod, a second rod and a pivot connection portion, one end of the first rod and one end of the second rod are connected through the pivot connection portion, the transmission assembly is respectively in transmission connection with the pivot connection portions of the first support and the second support, and the pivot connection portions are driven to move so that the first rod and the second rod relatively rotate around the pivot connection portions, and the lifting mechanism performs lifting and descending motions.

Optionally, in the lifting and lowering conveyor, the transmission assembly of the lifting and lowering mechanism comprises a lead screw and a lead screw nut, wherein the lead screw is drivingly connected to the pivotal connection of the first bracket or the second bracket and is drivingly connected to the pivotal connection of the second bracket or the first bracket via the lead screw nut.

Optionally, in the lifting and lowering conveyor, the lifting and lowering mechanism is further provided with at least one stopping member, which is mounted near the pivotal connection portion of the first support and/or the second support, for preventing a transmission assembly input portion of a transmission assembly, which is in transmission connection with the driving assembly, from moving when the lifting and lowering mechanism is lifted.

Optionally, in the lifting and lowering conveyor, the lifting and lowering mechanism further comprises at least one lifting and lowering guide member dispersedly mounted at the lifting and lowering mechanism mounting plate and extending in the direction of the lifting and lowering movement while guiding the lifting and lowering movement in a form-fitting connection with the horizontal conveyor mechanism.

Alternatively, in the elevation transport apparatus, each of the elevation transport units includes at least one elevation height sensor which is arranged along an extending direction of the elevation guide member and detects a height at which the elevation mechanism moves in the elevation direction.

Alternatively, in the elevation transport apparatus, each of the elevation transport units includes at least one elevation height sensor which is arranged along an extending direction of the elevation guide member and detects a height at which the elevation mechanism moves in the elevation direction.

Optionally, in the lifting and conveying device, the driving assembly of the lifting mechanism is configured to include a servo motor, and the servo motor adjusts the lifting movement height of the lifting mechanism according to the signal detected by the lifting height sensor.

Optionally, in the lifting and lowering transfer device, the lifting and lowering mechanism is driven by a belt drive mechanism, a chain drive mechanism, a screw drive mechanism, or a rack drive mechanism.

Alternatively, in the elevating conveyor, the horizontal conveying mechanism is configured as a motorized roller conveying mechanism, wherein the motorized roller conveying mechanism includes a plurality of motorized rollers arranged along a conveying direction.

Alternatively, in the elevation transport apparatus, each of the elevation transport units includes at least one transport position sensor which is arranged at intervals in a transport direction at the horizontal transport mechanism mounting plate and detects whether the battery pack reaches a specified position.

Optionally, in the elevation transport device, the elevation transport unit further includes a stopper member that is disposed at one end of the elevation transport unit in the transport direction and restricts a position of the battery pack in one direction.

According to another aspect of the application, the application also relates to a battery replacing station for a battery pack of an electric vehicle, which is characterized by comprising the lifting and conveying device according to any one of the above alternatives.

Drawings

The disclosure of the present application will become more readily understood with reference to the drawings. As is readily understood by those skilled in the art: these drawings are for illustrative purposes only and are not intended to constitute a limitation on the scope of the present application. Moreover, in the figures, like numerals are used to indicate like parts, wherein,

FIG. 1 is a perspective view of an elevating conveyor according to an embodiment of the present application; and

fig. 2 is an exploded view of a lift conveyor according to an embodiment of the present application.

Detailed Description

It is easily understood that according to the technical solutions of the present application, a person having ordinary skill in the art can propose various alternative structures and implementations without changing the spirit of the present application. Therefore, the following detailed description and the accompanying drawings are only exemplary illustrations of the technical solutions of the present application, and should not be construed as being all of the present application or as defining or limiting the technical solutions of the present application.

The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms. Further, it should be noted that, in the present application, the longitudinal direction refers to a conveying direction along the horizontal conveying mechanism, and the lateral direction refers to a direction on a horizontal plane orthogonal to the longitudinal direction, that is, a lateral direction with respect to the conveying direction.

A lifting conveyor 100 according to an embodiment of the present application, which is commonly used for electric vehicles to mount or dismount battery panels thereof when changing the power, is described in detail with reference to fig. 1 to 2. The lifting and lowering conveyor shown in the figures comprises, by way of example, two lifting and lowering conveyor units 1. In this case, two lifting and conveying units 1 are fixedly connected to one another side by side, in particular on both sides of the lifting and conveying plate 200 (as shown in the figures), wherein each lifting and conveying unit 1 comprises a lifting mechanism 11 and a horizontal conveying mechanism 12 assigned to the lifting mechanism, wherein the lifting mechanism 11 can perform a lifting movement and the horizontal conveying mechanism 12 conveys the battery pack or a part of the battery pack in a direction orthogonal to the movement direction of the lifting mechanism 11. Furthermore, the lifting mechanism 11 is connected to the horizontal transfer mechanism 12 in the movement direction of the lifting mechanism 11, so that the lifting mechanism 11 can move independently of the horizontal transfer mechanism, and simultaneously the lifting movement of the horizontal transfer mechanism 12 can be realized. Alternatively, a plurality of horizontal transport means may be arranged on the lifting means at intervals in succession in one group along the transport direction. The arrangement mode not only ensures the stable transportation of the battery pack, but also saves the number of horizontal conveying mechanism components through the interval arrangement mode, thereby reducing the manufacturing cost and the transportation cost. The lifting conveying device provided by the application can flexibly adapt to different heights required by the battery pack in the mounting, dismounting and transferring processes.

In some embodiments, the lifting and conveying units may be further arranged side by side in groups in the longitudinal direction on both sides of the battery pack, more preferably on both sides of the lifting mechanism mounting plate. Specifically, a plurality of horizontal conveyance mechanisms are arranged in series in the conveyance direction, and the thus-formed elevation conveyance units may also be arranged side by side on both sides of the elevation mechanism mounting plate 200 for stably supporting and conveying the battery packs at both end portions.

In some embodiments, each lifting transport unit 1 of the lifting transport device has a drive assembly 13 of the lifting mechanism and a transport drive mechanism 14, respectively, wherein the drive assembly 13 of the lifting mechanism is connected to the respective lifting mechanism 11 and drives the lifting mechanism 11 to perform a lifting motion, and the transport drive mechanism 14 is connected to the respective horizontal transport mechanism 12 and drives the horizontal transport mechanism 12 to perform a transport motion in a direction orthogonal to the direction of the lifting motion. This type of distribution of the drive assembly 13 of the lifting mechanism and the transport drive 14 makes it possible to omit a complicated transmission mechanism, as compared with a drive with only one lifting drive and transport drive, and thus saves installation space for arranging other components. Furthermore, it is advantageous in this case that the drive assembly 13 of the lifting mechanism of each lifting and lowering conveyor unit 1 is controlled independently of the drive assemblies 13 of the lifting mechanisms of the other lifting and lowering conveyor units 1, in a manner which is more flexible than the control of all lifting and lowering drive controls in unison. That is, even in the case where the component machining error of each lifting mechanism 11 is large, the coordination between the lifting heights of the plurality of lifting mechanisms 11 can be achieved by the independent adjustment of the driving assemblies 13 of the lifting mechanisms.

In the illustrated embodiment, the lifting mechanism 11 is configured as a jack scissor lifting mechanism 11. Illustratively, such a jack scissor lift mechanism 11 has a first bracket 111, a second bracket 112, and a transmission assembly 113, which are pivotally connected, respectively, wherein the first bracket 111 and the second bracket 112 each comprise a first rod 111a, 112a, a second rod 111c, 112c, and a pivotal connection 111b, 112b, respectively, wherein one end of the first rods 111a, 112a and one end of the second rods 111c, 112c are connected by the pivotal connections 111b, 112b and movement of the pivotal connections enables relative rotation of the first rods and the second rods about the pivotal connections. The transmission assembly 113 is respectively connected with the pivot connection parts 111b and 112b of the first bracket 111 and the second bracket 112 in a transmission manner, so that the transmission assembly 113 can drive the pivot connection parts to move, thereby realizing the lifting movement of the lifting mechanism 11.

In the illustrated embodiment, in order to enable the lifting mechanism 11 to perform lifting movement in one direction more accurately, the lifting mechanism 11 is further provided with at least one lifting guide member 114. Here, the elevation guide member 114 is exemplarily configured as an elevation guide rod which is installed at a fixing surface of the elevation mechanism 11 and passes through a connection surface of the horizontal transfer mechanism 12 and the elevation mechanism 11 so as to guide the elevation movement.

In the illustrated embodiment, the drive assembly 13 of the lift mechanism may be configured to include a servo motor. In this case, in order to achieve individual adjustment of the lifting movement of each lifting transport unit 1, at least one lifting height sensor 117, which is fixedly mounted along the extension direction of the lifting guide member 114, may be provided for each lifting mechanism 11, respectively, as required. The servo motor can adjust the lifting movement of the lifting mechanism 11 by using the signal of the lifting height sensor 117.

Meanwhile, in the illustrated embodiment, the transmission assembly 113 may be configured as a lead screw transmission, including a lead screw and a lead screw nut 113 a. That is, as shown in fig. 2, the output shaft of the servo motor is drivingly connected to the lead screw through a belt drive, and then the lead screw nut 113a is drivingly connected to the pivotal connection portion of the first bracket 111 and/or the pivotal connection portion of the second bracket 112 of the lifting mechanism 11. When the servo motor drives the lifting mechanism 11, the screw rod rotates to drive the pivotal connection portions of the first bracket 111 and the second bracket 112 to move, so that the first rod and the second rod of the first bracket 111 and the second bracket 112 respectively rotate relatively to realize the lifting movement of the lifting mechanism 11.

Meanwhile, in order to prevent the portion of the lead screw connected to the belt from moving when the lifting mechanism 11 is lifted, in some embodiments, the lifting mechanism 11 is further provided with at least one stopping member 116 disposed near the pivotal connection portion of the first bracket 111 and/or the second bracket 112 to prevent the transmission assembly input portion 115 of the lead screw connected to the belt from moving rightward when the lifting mechanism 11 is lifted. In the exemplary embodiment shown, the stop element 116 is designed as a triangle.

In some embodiments, the horizontal transfer mechanism 12 and the transfer drive mechanism 14 are configured as an integral transfer body for simplicity of construction. This construction also meets the transport requirements of the battery pack on the one hand and at the same time simplifies the construction of the lifting transport device on the other hand. In the exemplary embodiment shown, the conveyor is embodied to comprise at least one group of motorized rollers arranged at a distance from one another in the conveying direction on the horizontal conveyor mounting plate 300, wherein each motorized roller rotates about an axis arranged at a distance from one another on the conveyor mounting plate 300, wherein the conveyor drive 14 is arranged in each case in a motorized roller. Meanwhile, in order to be able to more accurately convey the battery pack to a specified position, the horizontal conveyance mechanism 12 further includes at least one conveyance position sensor 121, the conveyance position sensors 121 being arranged at intervals in the conveyance direction at the mounting surface of the motorized pulley.

As can be seen in fig. 1 and 2, two motorized roller sets are disposed above each lifting mechanism at intervals in the conveying direction. This saves the number of motorized rollers compared to arranging a plurality of motorized rollers in series to form one horizontal transfer mechanism, thereby reducing manufacturing costs as well as transportation costs.

Furthermore, in order to make the installation of the elevating conveyor more compact, in some embodiments, the driving assembly 13 of the elevating mechanism is disposed below the horizontal conveyor 12 along the elevating direction, wherein the elevating mechanism 11 and the horizontal conveyor 12 are connected by the elevating mechanism and the connecting plate 400 of the horizontal conveyor. That is, the elevating mechanism and its driving assembly are disposed between the elevating mechanism mounting plate and the horizontal transfer mechanism in the elevating direction. Specifically, the mounting plates 300 of the lifting mechanism and the horizontal transfer mechanism are connected to the connection plates 400 of the lifting mechanism and the horizontal transfer mechanism, respectively. The arrangement makes full use of the installation space of the lifting mechanism 11 below the horizontal conveying mechanism 12, thereby saving the space between the lifting conveying units 1 and adapting to different use occasions. In the exemplary embodiment shown in fig. 1 and 2, the servomotor is arranged below the motorized drum and is connected to the lifting mechanism 11 by means of a belt drive, so that an installation space is saved between the two lifting and conveying units 1 to accommodate the installation of further components in different applications.

In some embodiments, the lifting conveyor unit 1 further has a stop element 122 arranged at one end of said water lifting conveyor unit 1 in the conveying direction of the lifting conveyor unit 1. In the illustrated embodiment, the limiting element 122 is configured as a limiting plate that prevents the battery pack from accidentally falling off the horizontal transfer mechanism 12 while being transferred.

The foregoing description is exemplary rather than defined as being limited thereto. Various non-limiting embodiments are disclosed herein, however, one of ordinary skill in the art would recognize that, based on the teachings above, various modifications and alterations would come within the scope of the appended claims. It is, therefore, to be understood that within the scope of the appended claims, disclosure other than the specific disclosure may be practiced. For that reason the following claims should be studied to determine true scope and content.