Lifting device

Abstract

The utility model discloses a lifting device which comprises a lifting assembly and a supporting assembly. The lifting assembly comprises an electric push rod; the supporting assembly comprises a supporting piece and a supporting disc. The supporting piece is arranged at the bottom of the electric automobile. The supporting disc is arranged at the bottom end of the supporting piece. 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 supporting piece and the supporting disc are arranged at the top of the battery compartment; the fixed end of the electric push rod is arranged in the supporting piece, and the movable end of the electric push rod sequentially penetrates through the supporting piece, the supporting disc and the top of the battery bin in the vertical direction to be connected with a battery bearing frame in the battery bin. The battery in the battery bin can be lifted in the vertical direction, so that the battery can be replaced by descending the bottom end and replacing the battery at the front end, the battery does not need to extend out of a front overhang part at the front end of a vehicle and is replaced, and the front overhang part of the electric vehicle is prevented from being cut and modified.

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 support assembly includes a support member with an opening at the bottom end of the hollow structure and a support plate of the hollow structure;

[0010] The support member is arranged at the bottom of the electric vehicle, and the support plate is arranged at the bottom end of the support member;

[0011] 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;

[0012] The support member and the support plate are both arranged on the top of the battery compartment; the fixed end of the electric push rod is arranged inside the support member, and the movable end of the electric push rod passes through the support member, the support plate and the top of the battery compartment in sequence along the vertical direction to be connected to the battery supporting frame inside the battery compartment.

[0013] Furthermore, the support member is rotatably arranged at the bottom of the electric vehicle;

[0014] The battery compartment is also provided with a rotating assembly, which includes a driven gear plate with a hollow structure, a driving gear and a gear drive motor;

[0015] The driven gear plate is arranged between the battery compartment and the support plate, and is connected to the bottom end of the support plate. The driving gear is meshed with the driven gear plate. The driving gear is sleeved on the output end of the gear drive motor. The gear drive motor drives the driving gear to rotate.

[0016] The moving end of the electric push rod passes through the support member, the support plate, the driven gear plate and the top of the battery compartment in sequence along the vertical direction and is connected to the battery supporting frame.

[0017] Furthermore, a ball is rollingly arranged at the bottom end of the driven gear plate, and the ball is in rolling contact with the top of the battery compartment.

[0018] Furthermore, a hole is provided on the top of the battery compartment, for the moving end of the electric push rod to pass through the top of the battery compartment;

[0019] The moving end of the electric push rod is sleeved with a connecting piece, and the connecting piece moves with the moving end of the electric push rod and blocks the hole opened on the top of the battery compartment.

[0020] It can be seen from the above technical solutions that, compared with the prior art, the beneficial effects of the present invention are:

[0021] 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

[0022] 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.

[0023] Figure 1 This is a schematic diagram of the installation position and structure of the battery compartment in the embodiment of the utility model;

[0024] Figure 2 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;

[0025] Figure 3 for Figure 2 Sectional view of AA in the middle;

[0026] Figure 4 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 5 This is a schematic diagram of the working state of the embodiment of the utility model after the lifting device drives the battery to descend and drives the battery to rotate through the rotating assembly;

[0028] Description of reference numerals:

[0029] 1. Electric push rod; 2. Support member; 3. Support plate; 4. Battery compartment; 5. Battery; 6. Driven gear plate; 7. Driving gear; 8. Gear drive motor; 9. Ball bearing; 10. Connector; 11. Battery carrying frame. DETAILED DESCRIPTION

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] See also Figure 1-3 As shown, this embodiment provides a lifting device, which includes a lifting component and a supporting component;

[0036] The lifting assembly includes an electric push rod 1;

[0037] 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.

[0038] The support assembly includes a support member 2 with an opening at the bottom end of the hollow structure and a support plate 3 of the hollow structure;

[0039] Specifically, the support member 2 is a cylindrical structure;

[0040] The support member 2 is arranged at the bottom of the electric vehicle, and the support plate 3 is arranged at the bottom end of the support member 2;

[0041] A battery compartment 4 is also provided at the bottom of the electric vehicle, a battery carrying frame 11 is provided inside the battery compartment 4, and a notch is provided at the bottom end of the battery compartment 4 for the battery carrying frame 11 to enter and exit;

[0042] The support member 2 and the support plate 3 are both arranged on the top of the battery compartment 4, the fixed end of the electric push rod 1 is arranged inside the support member 2, and the movable end of the electric push rod 1 passes through the support member 2, the support plate 3 and the top of the battery compartment 4 in the vertical direction in sequence and is connected to the battery supporting frame 11.

[0043] Specifically, the support member 2 is rotatably arranged at the bottom of the chassis of the electric vehicle, and a rotating assembly is also arranged on the battery compartment 4, and the rotating assembly includes a driven gear plate 6 with a hollow structure, a driving gear 7 and a gear drive motor 8;

[0044] The driven gear plate 6 is connected to the bottom end of the support plate 3, the driving gear 7 is meshed with the driven gear plate 6, the driving gear 7 is sleeved on the output end of the gear drive motor 8, and the gear drive motor 8 drives the driving gear 7 to rotate;

[0045] The moving end of the electric push rod 1 passes through the support member 2, the support plate 3, the driven gear plate 6 and the top of the battery compartment 4 in sequence along the vertical direction and is connected to the battery supporting frame 11.

[0046] It should be noted that, see Figure 3 As shown, in order to facilitate the carrying of the battery 5, a battery carrying frame 11 is provided inside the battery compartment 4, and the battery carrying frame 11 is used to carry the battery 5. A notch is opened at the bottom of the battery compartment 4 for the battery carrying frame 11 to enter and exit; the moving end of the electric push rod 1 passes through the support 2, the support plate 3, the driven gear plate 6 and the top of the battery compartment 4 in the vertical direction in sequence to be 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 4 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 4 form a complete seamless plane, thereby preventing debris from entering the battery compartment 4 and preventing debris from directly hitting the battery 5 in the event of a bottoming accident.

[0047] Generally speaking, the battery 5 is a rectangular parallelepiped structure, and the battery 5 is basically placed inside the battery compartment 4 with the length direction facing forward and along the driving direction of the car, which results in a small number of batteries 5 contained in the battery compartment 4. Figure 4-5 As shown, the rotating assembly can drive the entire lifting device to rotate, and then drive the battery carrying frame 11 to rotate, so as to turn the battery 5 to adjust the direction of the battery 5 when entering the battery compartment 4 or moving out from the bottom of the car, and load the battery 5 into the battery compartment 4 with the width direction facing forward and along the driving direction of the car to accommodate more batteries 5, thereby increasing the cruising range of the electric vehicle. When the battery 5 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 4 in the vertical direction, and then the direction of the battery carrying frame 11 is changed by the rotating assembly to change the direction of the battery 5, and cooperate with the battery replacement robot of the existing battery replacement station to drag the battery 5 out from the front of the vehicle, so as to better adapt to the existing battery replacement station for battery replacement.

[0048] It should be noted that if Figure 3As shown, a ball 9 is rollingly arranged at the bottom end of the driven gear plate 6, and the ball 9 is in rolling contact with the top of the battery compartment 4, which can reduce the friction generated between the driven gear plate 6 and the top of the battery compartment 4 when the driven gear plate 6 rotates.

[0049] It should be noted that if Figure 3 As shown, a hole is provided at the top of the battery compartment 4, for the moving end of the electric push rod 1 to pass through the top of the battery compartment 4;

[0050] The moving end of the electric push rod 1 is sleeved with a connecting piece 10 , and the connecting piece 10 moves with the moving end of the electric push rod 1 and blocks the hole opened at the top of the battery compartment 4 .

[0051] 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 support assembly includes a support member with an opening at the bottom end of the hollow structure and a support plate of the hollow structure; The support member is arranged at the bottom of the electric vehicle, and the support plate is arranged at the bottom end of the support member; 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 support member and the support plate are both arranged on the top of the battery compartment; the fixed end of the electric push rod is arranged inside the support member, and the movable end of the electric push rod passes through the support member, the support plate and the top of the battery compartment in sequence along the vertical direction to be connected to the battery supporting frame inside the battery compartment.

2. A lifting device according to claim 1, characterized in that: The support member is rotatably arranged at the bottom of the electric vehicle; The battery compartment is also provided with a rotating assembly, which includes a driven gear plate with a hollow structure, a driving gear and a gear drive motor; The driven gear plate is arranged between the battery compartment and the support plate, and is connected to the bottom end of the support plate. The driving gear is meshed with the driven gear plate. The driving gear is sleeved on the output end of the gear drive motor. The gear drive motor drives the driving gear to rotate. The moving end of the electric push rod passes through the support member, the support plate, the driven gear plate and the top of the battery compartment in sequence along the vertical direction and is connected to the battery supporting frame.

3. A lifting device according to claim 2, characterized in that: A ball is rollingly arranged at the bottom end of the driven gear plate, and the ball is in rolling contact with the top of the battery compartment.

4. A lifting device according to claim 1, characterized in that: A hole is provided on the top of the battery compartment, and the moving end of the electric push rod is used to pass through the top of the battery compartment; The moving end of the electric push rod is sleeved with a connecting piece, and the connecting piece moves with the moving end of the electric push rod and blocks the hole opened on the top of the battery compartment.

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