Lifting device

Abstract

The utility model discloses a lifting device which comprises an electric push rod and a supporting assembly. The electric push rod is arranged at the bottom of the electric automobile; a battery bin is further arranged at the bottom of the electric vehicle, a battery bearing frame is arranged in the battery bin, and a notch for the battery bearing frame to enter and exit is formed in the bottom end of the battery bin. The moving end of the electric push rod extends into the battery bin in the vertical direction and is connected with a fixing plate. The bottom end of the fixing plate is connected with the battery bearing frame; the supporting assembly comprises a fixing piece, a moving rod and a connecting piece. The fixing piece penetrates through the top of the battery bin, the moving rod is slidably arranged in the fixing piece, the bottom end of the moving rod is fixedly connected with the connecting piece, and the connecting piece is arranged on the fixing plate; according to the utility model, the battery in the battery compartment can be lifted along the vertical direction, so that the battery can be replaced in a bottom-end battery replacement manner, and the battery does not need to extend out of a front suspension part at the front end of the vehicle and is replaced, so that the front suspension part of the electric vehicle is prevented from being cut and refitted.

Description

Technical Field

[0001] The utility model relates to the technical field of battery replacement for electric vehicles, in particular to a lifting device. Background Art

[0002] In order to overcome the problem of range anxiety, existing electric vehicles have developed battery replacement technology. Among them, most electric vehicles with battery replacement capabilities use front-end battery replacement technology, that is, the battery in the battery compartment is extended out from the front overhang part of the front end of the vehicle and replaced. This battery replacement method requires the front overhang part of the electric vehicle to be cut and modified to form a door-like structure that can be opened and closed, so that the battery can be extended or pushed in along the battery compartment. After the battery is pushed from the modified front overhang part into the battery compartment at the bottom of the vehicle, the open and closed front overhang part is closed to restore the appearance of the vehicle.

[0003] When electric vehicles leave the factory, the overall body of the vehicle is not adjusted, that is, the front suspension of the electric vehicle is not cut and modified. Electric vehicles that use front-end battery replacement technology need to be modified later after the vehicle leaves the factory, or modified at the factory by the original vehicle manufacturer. However, under normal circumstances, the original vehicle manufacturer does not provide batch modification of the appearance of vehicles that have left the factory, nor is it willing to modify the original vehicle design. The modification of electric vehicles after the vehicle leaves the factory requires huge manpower and working hours costs, which is not convenient for the market promotion of front-end battery replacement vehicles. In addition, cutting and modifying the front suspension of electric vehicles will also cause the strength of the vehicle body to decrease, and the safety will be reduced to a certain extent.

[0004] Therefore, there is an urgent need to provide a bottom battery replacement method that can be distinguished from the front battery replacement, which can lift the battery inside the battery compartment and enable the battery to extend or enter from the bottom of the battery compartment to quickly replace the battery in the battery compartment, thereby eliminating the need to extend and replace the battery from the front overhang part of the front end of the vehicle, thereby avoiding cutting and modifying the front overhang part of the electric vehicle. Utility Model Content

[0005] The purpose of the utility model is to provide a lifting device to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following solutions:

[0007] A lifting device comprises a lifting assembly and a supporting assembly;

[0008] The lifting assembly includes an electric push rod;

[0009] The fixed end of the electric push rod is arranged at the bottom of the electric car;

[0010] A battery compartment is also provided at the bottom of the electric vehicle, a battery carrying frame is provided inside the battery compartment, and a notch is provided at the bottom end of the battery compartment for the battery carrying frame to enter and exit;

[0011] The movable end of the electric push rod extends into the interior of the battery compartment in a vertical direction and is connected to a fixing plate;

[0012] The bottom end of the fixing plate is connected to the battery carrying frame;

[0013] The support assembly includes a fixing member, a moving rod and a connecting member;

[0014] The fixing member is arranged through the top of the battery compartment, the moving rod is slidably arranged inside the fixing member, the bottom end of the moving rod is fixedly connected to the connecting member, and the connecting member is arranged on the fixing plate;

[0015] The top end of the moving rod extends out of the fixing piece and is provided with a limiting assembly, wherein the limiting assembly is used to prevent the moving rod from escaping from the fixing piece.

[0016] Furthermore, a rotating assembly is also provided inside the battery compartment, and the rotating assembly includes a driven gear plate, a driving gear and a gear drive motor;

[0017] The driven gear plate is rotatably arranged at the bottom end of the fixed plate, the driven gear plate is connected to the battery supporting frame, the driving gear is meshed with the driven gear plate, the driving gear is sleeved on the output end of the gear driving motor, and the gear driving motor drives the driving gear to rotate.

[0018] Furthermore, four support assemblies are provided, and the four support assemblies are evenly arranged around the lifting assembly in the circumferential direction.

[0019] Furthermore, the limiting component is a limiting block.

[0020] Furthermore, the fixing piece is a cylindrical structure.

[0021] Furthermore, the connecting member is a circular base, and the moving rod is fixedly sleeved inside the connecting member.

[0022] It can be seen from the above technical solutions that, compared with the prior art, the beneficial effects of the present invention are:

[0023] The utility model adds a lifting device between the chassis and the battery compartment of the electric vehicle, and the lifting device directly lifts the battery carrying frame inside the battery compartment in the vertical direction, so that the battery carrying frame can extend or enter from the bottom of the battery compartment, avoiding the disadvantages caused by the front-end battery replacement method, and cooperates with the rotating component to realize the steering of the battery carrying frame, realize the adjustability of the battery loading direction, and increase the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 This is a schematic diagram of the installation position and structure of the battery compartment in the embodiment of the utility model;

[0026] Figure 2 This is a schematic diagram of the operation of the lifting device in the embodiment of the utility model after the battery is driven down;

[0027] Figure 3 This is a schematic diagram of the working state of the lifting device in the embodiment of the utility model after driving the battery to rise;

[0028] Figure 4 for Figure 3 Sectional view of AA in the middle;

[0029] Figure 5 It is a schematic diagram of the connection relationship between the lifting device and the battery supporting frame in the embodiment of the utility model.

[0030] Description of reference numerals:

[0031] 1. Electric push rod; 2. Battery compartment; 3. Battery; 4. Fixed plate; 5. Fixed part; 6. Moving rod; 7. Connecting part; 8. Driven gear plate; 9. Driving gear; 10. Gear drive motor; 11. Battery carrying frame; 12. Limit block. DETAILED DESCRIPTION

[0032] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0033] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0035] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In order to better understand the purpose, structure and function of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings.

[0037] See also Figure 1-5 As shown, a lifting device provided in this embodiment is arranged between the chassis and the battery compartment of the electric vehicle;

[0038] The device comprises a lifting assembly and a supporting assembly;

[0039] The lifting assembly includes an electric push rod 1;

[0040] It should be noted that the lifting assembly can be any device that can drive the battery carrying frame 11 to rise and fall, such as an electric push rod 1, a cylinder, an electric telescopic rod, etc.

[0041] The fixed end of the electric push rod 1 is arranged at the bottom of the electric car;

[0042] The bottom of the electric vehicle is also provided with a battery compartment 2, the interior of which is provided with a battery carrying frame 11, and a notch is provided at the bottom of the battery compartment 2 for the battery carrying frame 11 to enter and exit;

[0043] The moving end of the electric push rod 1 extends into the battery compartment 2 in the vertical direction and is connected to a fixing plate 4;

[0044] The bottom end of the fixing plate 4 is connected to the battery carrying frame 11;

[0045] The support assembly includes a fixing member 5, a moving rod 6 and a connecting member 7;

[0046] The fixing member 5 is arranged through the top of the battery compartment 2, the moving rod 6 is slidably arranged inside the fixing member 5, the bottom end of the moving rod 6 is fixedly connected to the connecting member 7, and the connecting member 7 is arranged on the fixing plate 4;

[0047] The top end of the moving rod 6 extends out of the fixing piece 5 and is provided with a limiting assembly, which is used to prevent the moving rod from escaping from the fixing piece 5 .

[0048] Specifically, the limiting assembly can bear the weight of the battery carrying frame 11 when the lifting assembly drives the battery carrying frame 11 to descend to the bottom, and also plays a guiding role during movement.

[0049] It should be noted that the moving rod 6 slides up and down in the fixing member 5 as the electric push rod 1 moves.

[0050] Specifically, a rotating assembly is also provided inside the battery compartment 2, and the rotating assembly includes a driven gear plate 8, a driving gear 9 and a gear drive motor 10;

[0051] The driven gear plate 8 is rotatably arranged at the bottom end of the fixed plate 4, the driven gear plate 8 is connected to the battery 3, the driving gear 9 is meshed with the driven gear plate 8, the driving gear 9 is sleeved on the output end of the gear drive motor 10, and the gear drive motor 10 drives the driving gear 9 to rotate.

[0052] It should be noted that, see Figure 2 , 4 As shown in Figures 5 and 6, in order to facilitate the carrying of the battery 3, a battery carrying frame 11 is provided inside the battery compartment 2, and the battery carrying frame 11 is used to carry the battery 3. A notch is opened at the bottom of the battery compartment 2 for the battery carrying frame 11 to enter and exit; the driven gear plate 8 is connected to the battery carrying frame 11 inside the battery compartment 4, and the bottom end of the battery carrying frame 11 is a flat panel. When the battery carrying frame 11 enters the battery compartment 2 driven by the moving end of the electric push rod 1, the bottom end of the battery carrying frame 11 and the bottom end of the battery compartment 2 form a complete seamless plane, thereby preventing debris from entering the battery compartment 2 and preventing the battery 3 from being directly hit by debris in the event of a bottoming accident.

[0053] It should be noted that the driven gear plate 8 serves as an intermediate connecting piece between the fixed plate 4 and the battery supporting frame 11. It is necessary to realize that when the driven gear plate 8 rotates under the rotation of the driving gear 9, it can drive the battery supporting frame 11 to rotate without driving the fixed plate 4 to rotate. For example, a bearing can be sleeved inside the driven gear plate 8, the outer ring of the bearing is connected to the battery supporting frame 11, and the inner ring of the bearing is connected to the fixed plate 4. In this way, when the driven gear plate 8 drives the outer ring of the bearing to rotate, the inner ring of the bearing does not rotate. Of course, there can also be other structural settings that can achieve this function, which are not listed here one by one.

[0054] The driving gear 9 and the gear drive motor 10 are both arranged on the top of the battery carrying frame 11 and located in the battery compartment 2;

[0055] Generally speaking, the battery 3 is a rectangular structure, and the battery 3 is basically placed inside the battery compartment 2 with its length direction facing forward and along the driving direction of the car. This will result in a small number of batteries 3 accommodated in the battery compartment 2. The rotating component can drive the entire battery carrying frame 11 to rotate, thereby turning the battery 3 to adjust the direction of the battery 3 when entering the battery compartment 2 or moving out from the bottom of the car. The battery 3 is installed in the battery compartment 2 with its width direction facing forward and along the driving direction of the car to accommodate more batteries 3, thereby increasing the cruising range of the electric vehicle. When the battery 3 needs to be replaced, the moving end of the electric push rod 1 drives the battery carrying frame 11 to extend out of the battery compartment 2 in the vertical direction, and then the direction of the battery carrying frame 11 is changed by the rotating component to change the direction of the battery 3, and the battery 3 is dragged out from the front of the vehicle in cooperation with the battery replacement robot of the existing battery replacement station, so as to better adapt to the existing battery replacement station for battery replacement.

[0056] It should be noted that a plurality of support assemblies may be provided. In the present embodiment, four support assemblies are provided. The four support assemblies are evenly arranged around the lifting assembly in the circumferential direction to increase the bearing capacity of the support assemblies.

[0057] It should be noted that the limiting component is a limiting block 13 .

[0058] It should be noted that the fixing member 5 is a cylindrical structure.

[0059] It should be noted that the connecting member 7 is a circular base, and the moving rod 6 is fixedly sleeved inside the connecting member 7 .

[0060] It should be noted that the diameter of the limiting block 13 is larger than the diameter of the fixing member 5 .

[0061] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. At the same time, for those skilled in the art, according to the ideas of the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A lifting device, characterized in that: It includes a lifting assembly and a supporting assembly; The lifting assembly includes an electric push rod; The fixed end of the electric push rod is arranged at the bottom of the electric car; A battery compartment is also provided at the bottom of the electric vehicle, a battery carrying frame is provided inside the battery compartment, and a notch is provided at the bottom end of the battery compartment for the battery carrying frame to enter and exit; The movable end of the electric push rod extends into the interior of the battery compartment in a vertical direction and is connected to a fixing plate; The bottom end of the fixing plate is connected to the battery carrying frame; The support assembly includes a fixing member, a moving rod and a connecting member; The fixing member is arranged through the top of the battery compartment, the moving rod is slidably arranged inside the fixing member, the bottom end of the moving rod is fixedly connected to the connecting member, and the connecting member is arranged on the fixing plate; The top end of the moving rod extends out of the fixing piece and is provided with a limiting assembly, wherein the limiting assembly is used to prevent the moving rod from escaping from the fixing piece.

2. A lifting device according to claim 1, characterized in that: A rotating assembly is also provided inside the battery compartment, and the rotating assembly includes a driven gear plate, a driving gear and a gear drive motor; The driven gear plate is rotatably arranged at the bottom end of the fixed plate, the driven gear plate is connected to the battery supporting frame, the driving gear is meshed with the driven gear plate, the driving gear is sleeved on the output end of the gear driving motor, and the gear driving motor drives the driving gear to rotate.

3. A lifting device according to claim 1, characterized in that: There are four support assemblies, and the four support assemblies are evenly arranged around the lifting assembly.

4. A lifting device according to claim 1, characterized in that: The limiting component is a limiting block.

5. A lifting device according to claim 1, characterized in that: The fixing piece is a cylindrical structure.

6. A lifting device according to claim 1, characterized in that: The connecting piece is a circular base, and the moving rod is fixedly sleeved inside the connecting piece.

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